diff --git a/.vscode/launch.json b/.vscode/launch.json
index 7e69fb8..e071eaa 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -8,7 +8,7 @@
       "name": "Python: Web",
       "type": "python",
       "request": "launch",
-      "program": "${workspaceFolder}/web/app.py",
+      "program": "web.py",
       "console": "integratedTerminal"
     },
     {
diff --git a/requirements.txt b/requirements.txt
index 2c15ccb..f8aec04 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,4 +14,8 @@ PyQt5
 multiprocess
 numba
 webrtcvad; platform_system != "Windows"
-pypinyin
\ No newline at end of file
+pypinyin
+flask
+flask_wtf
+flask_cors
+gevent==21.8.0
diff --git a/synthesizer/hparams.py b/synthesizer/hparams.py
index 77db2ce..897b6d4 100644
--- a/synthesizer/hparams.py
+++ b/synthesizer/hparams.py
@@ -49,12 +49,12 @@ hparams = HParams(
                                                     # frame that has all values < -3.4
 
         ### Tacotron Training
-        tts_schedule = [(2,  1e-3,  20_000,  12),   # Progressive training schedule
-                        (2,  5e-4,  40_000,  12),   # (r, lr, step, batch_size)
-                        (2,  2e-4,  80_000,  12),   #
-                        (2,  1e-4, 160_000,  12),   # r = reduction factor (# of mel frames
-                        (2,  3e-5, 320_000,  12),   #     synthesized for each decoder iteration)
-                        (2,  1e-5, 640_000,  12)],  # lr = learning rate
+        tts_schedule = [(2,  1e-3,  20_000,  24),   # Progressive training schedule
+                        (2,  5e-4,  40_000,  24),   # (r, lr, step, batch_size)
+                        (2,  2e-4,  80_000,  24),   #
+                        (2,  1e-4, 160_000,  24),   # r = reduction factor (# of mel frames
+                        (2,  3e-5, 320_000,  24),   #     synthesized for each decoder iteration)
+                        (2,  1e-5, 640_000,  24)],  # lr = learning rate
 
         tts_clip_grad_norm = 1.0,                   # clips the gradient norm to prevent explosion - set to None if not needed
         tts_eval_interval = 500,                    # Number of steps between model evaluation (sample generation)
diff --git a/web.py b/web.py
new file mode 100644
index 0000000..56ac93c
--- /dev/null
+++ b/web.py
@@ -0,0 +1,11 @@
+from web import webApp
+from gevent import pywsgi as wsgi
+
+
+if __name__ == "__main__":
+    app = webApp()
+    host = app.config.get("HOST")
+    port = app.config.get("PORT")
+    print(f"Web server: http://{host}:{port}")
+    server = wsgi.WSGIServer((host, port), app)
+    server.serve_forever()
diff --git a/web/DOCKERFILE b/web/DOCKERFILE
new file mode 100644
index 0000000..64e8c53
--- /dev/null
+++ b/web/DOCKERFILE
@@ -0,0 +1,10 @@
+
+FROM python:3.7
+
+RUN pip install gevent uwsgi flask
+
+COPY app.py /app.py
+
+EXPOSE 3000
+
+ENTRYPOINT ["uwsgi", "--http", ":3000", "--master", "--module", "app:app"]
\ No newline at end of file
diff --git a/web/__init__.py b/web/__init__.py
new file mode 100644
index 0000000..91e071c
--- /dev/null
+++ b/web/__init__.py
@@ -0,0 +1,167 @@
+import os
+from pathlib import Path
+from gevent import pywsgi as wsgi
+from flask import Flask, jsonify, Response, request, render_template
+from synthesizer.inference import Synthesizer
+from encoder import inference as encoder
+from vocoder.hifigan import inference as gan_vocoder
+from vocoder.wavernn import inference as rnn_vocoder
+import numpy as np
+import re
+from scipy.io.wavfile import write, read
+import io
+import base64
+from flask_cors import CORS
+from flask_wtf import CSRFProtect
+
+def webApp():
+    # Init and load config
+    app = Flask(__name__, instance_relative_config=True)
+
+    app.config.from_object("web.config.default")
+
+    CORS(app) #允许跨域，注释掉此行则禁止跨域请求
+    csrf = CSRFProtect(app)
+    csrf.init_app(app)
+    # API For Non-Trainer
+    # 1. list sample audio files
+    # 2. record / upload / select audio files
+    # 3. load melspetron of audio
+    # 4. inference by audio + text + models(encoder, vocoder, synthesizer)
+    # 5. export result
+    audio_samples = []
+    AUDIO_SAMPLES_DIR = app.config.get("AUDIO_SAMPLES_DIR")
+    if os.path.isdir(AUDIO_SAMPLES_DIR):
+        audio_samples = list(Path(AUDIO_SAMPLES_DIR).glob("*.wav"))
+    print("Loaded samples: " + str(len(audio_samples)))
+    # enc_models_dir = "encoder/saved_models"
+    # voc_models_di = "vocoder/saved_models"
+    # encoders = list(Path(enc_models_dir).glob("*.pt"))
+    # vocoders = list(Path(voc_models_di).glob("**/*.pt"))
+    syn_models_dirt = "synthesizer/saved_models"
+    synthesizers = list(Path(syn_models_dirt).glob("**/*.pt"))
+    # print("Loaded encoder models: " + str(len(encoders)))
+    # print("Loaded vocoder models: " + str(len(vocoders)))
+    print("Loaded synthesizer models: " + str(len(synthesizers)))
+    synthesizers_cache = {}
+    encoder.load_model(Path("encoder/saved_models/pretrained.pt"))
+    gan_vocoder.load_model(Path("vocoder/saved_models/pretrained/g_hifigan.pt"))
+
+    # TODO: move to utils
+    def generate(wav_path):
+        with open(wav_path, "rb") as fwav:
+            data = fwav.read(1024)
+            while data:
+                yield data
+                data = fwav.read(1024)
+
+    @app.route("/api/audios", methods=["GET"])
+    def audios():
+        return jsonify(
+            {"data": list(a.name for a in audio_samples), "total": len(audio_samples)}
+        )
+
+    @app.route("/api/audios/<name>", methods=["GET"])
+    def audio_play(name):
+        return Response(generate(AUDIO_SAMPLES_DIR + name), mimetype="audio/x-wav")
+
+    @app.route("/api/models", methods=["GET"])
+    def models():
+        return jsonify(
+            {
+                # "encoder": list(e.name for e in encoders),
+                # "vocoder": list(e.name for e in vocoders),
+                "synthesizers": 
+                    list({"name": e.name, "path": str(e)} for e in synthesizers),
+            }
+        )
+
+    def pcm2float(sig, dtype='float32'):
+        """Convert PCM signal to floating point with a range from -1 to 1.
+        Use dtype='float32' for single precision.
+        Parameters
+        ----------
+        sig : array_like
+            Input array, must have integral type.
+        dtype : data type, optional
+            Desired (floating point) data type.
+        Returns
+        -------
+        numpy.ndarray
+            Normalized floating point data.
+        See Also
+        --------
+        float2pcm, dtype
+        """
+        sig = np.asarray(sig)
+        if sig.dtype.kind not in 'iu':
+            raise TypeError("'sig' must be an array of integers")
+        dtype = np.dtype(dtype)
+        if dtype.kind != 'f':
+            raise TypeError("'dtype' must be a floating point type")
+
+        i = np.iinfo(sig.dtype)
+        abs_max = 2 ** (i.bits - 1)
+        offset = i.min + abs_max
+        return (sig.astype(dtype) - offset) / abs_max
+
+    # Cache for synthesizer
+    @csrf.exempt
+    @app.route("/api/synthesize", methods=["POST"])
+    def synthesize():
+        # TODO Implementation with json to support more platform
+
+        # Load synthesizer
+        if "synt_path" in request.form:
+            synt_path = request.form["synt_path"]
+        else:
+            synt_path = synthesizers[0]
+            print("NO synthsizer is specified, try default first one.")
+        if synthesizers_cache.get(synt_path) is None:
+            current_synt = Synthesizer(Path(synt_path))
+            synthesizers_cache[synt_path] = current_synt
+        else:
+            current_synt = synthesizers_cache[synt_path]
+        print("using synthesizer model: " + str(synt_path))
+        # Load input wav
+        wav_base64 = request.form["upfile_b64"]
+        wav = base64.b64decode(bytes(wav_base64, 'utf-8'))
+        wav = pcm2float(np.frombuffer(wav, dtype=np.int16), dtype=np.float32)
+        encoder_wav = encoder.preprocess_wav(wav, 16000)
+        embed, _, _ = encoder.embed_utterance(encoder_wav, return_partials=True)
+        
+        # Load input text
+        texts = request.form["text"].split("\n")
+        punctuation = '！，。、,' # punctuate and split/clean text
+        processed_texts = []
+        for text in texts:
+            for processed_text in re.sub(r'[{}]+'.format(punctuation), '\n', text).split('\n'):
+                if processed_text:
+                    processed_texts.append(processed_text.strip())
+        texts = processed_texts
+
+        # synthesize and vocode
+        embeds = [embed] * len(texts)
+        specs = current_synt.synthesize_spectrograms(texts, embeds)
+        spec = np.concatenate(specs, axis=1)
+        wav = gan_vocoder.infer_waveform(spec)
+
+        # Return cooked wav
+        out = io.BytesIO()
+        write(out, Synthesizer.sample_rate, wav)
+        return Response(out, mimetype="audio/wav")
+
+    @app.route('/', methods=['GET'])
+    def index():
+        return render_template("index.html")
+
+    host = app.config.get("HOST")
+    port = app.config.get("PORT")
+    print(f"Web server: http://{host}:{port}")
+    server = wsgi.WSGIServer((host, port), app)
+    server.serve_forever()
+
+    return app
+
+if __name__ == "__main__":
+    webApp()
\ No newline at end of file
diff --git a/web/config/__init__.py b/web/config/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/web/config/default.py b/web/config/default.py
new file mode 100644
index 0000000..e75d266
--- /dev/null
+++ b/web/config/default.py
@@ -0,0 +1,7 @@
+AUDIO_SAMPLES_DIR = 'samples\\'
+DEVICE = '0'
+HOST = 'localhost'
+PORT = 8080
+MAX_CONTENT_PATH =1024 * 1024 * 4  # mp3文件大小限定不能超过4M
+SECRET_KEY = "mockingbird_key"
+WTF_CSRF_SECRET_KEY = "mockingbird_key"
\ No newline at end of file
diff --git a/web/static/js/eruda.min.js b/web/static/js/eruda.min.js
new file mode 100644
index 0000000..0609b9e
--- /dev/null
+++ b/web/static/js/eruda.min.js
@@ -0,0 +1,2 @@
+/*! eruda v1.5.4 https://eruda.liriliri.io/ */
+!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.eruda=t():e.eruda=t()}("undefined"!=typeof self?self:this,function(){return function(e){function t(r){if(n[r])return n[r].exports;var i=n[r]={i:r,l:!1,exports:{}};return e[r].call(i.exports,i,i.exports,t),i.l=!0,i.exports}var n={};return t.m=e,t.c=n,t.d=function(e,n,r){t.o(e,n)||Object.defineProperty(e,n,{configurable:!1,enumerable:!0,get:r})},t.n=function(e){var n=e&&e.__esModule?function(){return e.default}:function(){return e};return t.d(n,"a",n),n},t.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},t.p="/assets/",t(t.s=82)}([function(e,t,n){"use strict";(function(e,r){function i(e){return 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diff --git a/web/static/js/frequency.histogram.view.js b/web/static/js/frequency.histogram.view.js
new file mode 100644
index 0000000..754a670
--- /dev/null
+++ b/web/static/js/frequency.histogram.view.js
@@ -0,0 +1,338 @@
+/*
+录音 Recorder扩展，频率直方图显示
+使用本扩展需要引入lib.fft.js支持，直方图特意优化主要显示0-5khz语音部分，其他高频显示区域较小，不适合用来展示音乐频谱
+
+https://github.com/xiangyuecn/Recorder
+
+本扩展核心算法主要参考了Java开源库jmp123 版本0.3 的代码：
+https://www.iteye.com/topic/851459
+https://sourceforge.net/projects/jmp123/files/
+*/
+(function(){
+"use strict";
+
+var FrequencyHistogramView=function(set){
+	return new fn(set);
+};
+var fn=function(set){
+	var This=this;
+	var o={
+		/*
+		elem:"css selector" //自动显示到dom，并以此dom大小为显示大小
+			//或者配置显示大小，手动把frequencyObj.elem显示到别的地方
+		,width:0 //显示宽度
+		,height:0 //显示高度
+		
+		以上配置二选一
+		*/
+		
+		scale:2 //缩放系数，应为正整数，使用2(3? no!)倍宽高进行绘制，避免移动端绘制模糊
+		
+		,fps:20 //绘制帧率，不可过高
+		
+		,lineCount:30 //直方图柱子数量，数量的多少对性能影响不大，密集运算集中在FFT算法中
+		,widthRatio:0.6 //柱子线条宽度占比，为所有柱子占用整个视图宽度的比例，剩下的空白区域均匀插入柱子中间；默认值也基本相当于一根柱子占0.6，一根空白占0.4；设为1不留空白，当视图不足容下所有柱子时也不留空白
+		,spaceWidth:0 //柱子间空白固定基础宽度，柱子宽度自适应，当不为0时widthRatio无效，当视图不足容下所有柱子时将不会留空白，允许为负数，让柱子发生重叠
+		,minHeight:0 //柱子保留基础高度，position不为±1时应该保留点高度
+		,position:-1 //绘制位置，取值-1到1，-1为最底下，0为中间，1为最顶上，小数为百分比
+		,mirrorEnable:false //是否启用镜像，如果启用，视图宽度会分成左右两块，右边这块进行绘制，左边这块进行镜像（以中间这根柱子的中心进行镜像）
+		
+		,stripeEnable:true //是否启用柱子顶上的峰值小横条，position不是-1时应当关闭，否则会很丑
+		,stripeHeight:3 //峰值小横条基础高度
+		,stripeMargin:6 //峰值小横条和柱子保持的基础距离
+		
+		,fallDuration:1000 //柱子从最顶上下降到最底部最长时间ms
+		,stripeFallDuration:3500 //峰值小横条从最顶上下降到底部最长时间ms
+		
+		//柱子颜色配置：[位置，css颜色，...] 位置: 取值0.0-1.0之间
+		,linear:[0,"rgba(0,187,17,1)",0.5,"rgba(255,215,0,1)",1,"rgba(255,102,0,1)"]
+		//峰值小横条渐变颜色配置，取值格式和linear一致，留空为柱子的渐变颜色
+		,stripeLinear:null
+		
+		,shadowBlur:0 //柱子阴影基础大小，设为0不显示阴影，如果柱子数量太多时请勿开启，非常影响性能
+		,shadowColor:"#bbb" //柱子阴影颜色
+		,stripeShadowBlur:-1 //峰值小横条阴影基础大小，设为0不显示阴影，-1为柱子的大小，如果柱子数量太多时请勿开启，非常影响性能
+		,stripeShadowColor:"" //峰值小横条阴影颜色，留空为柱子的阴影颜色
+		
+		//当发生绘制时会回调此方法，参数为当前绘制的频率数据和采样率，可实现多个直方图同时绘制，只消耗一个input输入和计算时间
+		,onDraw:function(frequencyData,sampleRate){}
+	};
+	for(var k in set){
+		o[k]=set[k];
+	};
+	This.set=set=o;
+	
+	var elem=set.elem;
+	if(elem){
+		if(typeof(elem)=="string"){
+			elem=document.querySelector(elem);
+		}else if(elem.length){
+			elem=elem[0];
+		};
+	};
+	if(elem){
+		set.width=elem.offsetWidth;
+		set.height=elem.offsetHeight;
+	};
+	
+	var scale=set.scale;
+	var width=set.width*scale;
+	var height=set.height*scale;
+	
+	var thisElem=This.elem=document.createElement("div");
+	var lowerCss=["","transform-origin:0 0;","transform:scale("+(1/scale)+");"];
+	thisElem.innerHTML='<div style="width:'+set.width+'px;height:'+set.height+'px;overflow:hidden"><div style="width:'+width+'px;height:'+height+'px;'+lowerCss.join("-webkit-")+lowerCss.join("-ms-")+lowerCss.join("-moz-")+lowerCss.join("")+'"><canvas/></div></div>';
+	
+	var canvas=This.canvas=thisElem.querySelector("canvas");
+	var ctx=This.ctx=canvas.getContext("2d");
+	canvas.width=width;
+	canvas.height=height;
+	
+	if(elem){
+		elem.innerHTML="";
+		elem.appendChild(thisElem);
+	};
+	
+	if(!Recorder.LibFFT){
+		throw new Error("需要lib.fft.js支持");
+	};
+	This.fft=Recorder.LibFFT(1024);
+	
+	//柱子所在高度
+	This.lastH=[];
+	//峰值小横条所在高度
+	This.stripesH=[];
+};
+fn.prototype=FrequencyHistogramView.prototype={
+	genLinear:function(ctx,colors,from,to){
+		var rtv=ctx.createLinearGradient(0,from,0,to);
+		for(var i=0;i<colors.length;){
+			rtv.addColorStop(colors[i++],colors[i++]);
+		};
+		return rtv;
+	}
+	,input:function(pcmData,powerLevel,sampleRate){
+		var This=this;
+		This.sampleRate=sampleRate;
+		This.pcmData=pcmData;
+		This.pcmPos=0;
+		
+		This.inputTime=Date.now();
+		This.schedule();
+	}
+	,schedule:function(){
+		var This=this,set=This.set;
+		var interval=Math.floor(1000/set.fps);
+		if(!This.timer){
+			This.timer=setInterval(function(){
+				This.schedule();
+			},interval);
+		};
+		
+		var now=Date.now();
+		var drawTime=This.drawTime||0;
+		if(now-This.inputTime>set.stripeFallDuration*1.3){
+			//超时没有输入，顶部横条已全部落下，干掉定时器
+			clearInterval(This.timer);
+			This.timer=0;
+			return;
+		};
+		if(now-drawTime<interval){
+			//没到间隔时间，不绘制
+			return;
+		};
+		This.drawTime=now;
+		
+		//调用FFT计算频率数据
+		var bufferSize=This.fft.bufferSize;
+		var pcm=This.pcmData;
+		var pos=This.pcmPos;
+		var arr=new Int16Array(bufferSize);
+		for(var i=0;i<bufferSize&&pos<pcm.length;i++,pos++){
+			arr[i]=pcm[pos];
+		};
+		This.pcmPos=pos;
+		
+		var frequencyData=This.fft.transform(arr);
+		
+		//推入绘制
+		This.draw(frequencyData,This.sampleRate);
+	}
+	,draw:function(frequencyData,sampleRate){
+		var This=this,set=This.set;
+		var ctx=This.ctx;
+		var scale=set.scale;
+		var width=set.width*scale;
+		var height=set.height*scale;
+		var lineCount=set.lineCount;
+		var bufferSize=This.fft.bufferSize;
+		
+		
+		//计算高度位置
+		var position=set.position;
+		var posAbs=Math.abs(set.position);
+		var originY=position==1?0:height;//y轴原点
+		var heightY=height;//最高的一边高度
+		if(posAbs<1){
+			heightY=heightY/2;
+			originY=heightY;
+			heightY=Math.floor(heightY*(1+posAbs));
+			originY=Math.floor(position>0?originY*(1-posAbs):originY*(1+posAbs));
+		};
+		
+		var lastH=This.lastH;
+		var stripesH=This.stripesH;
+		var speed=Math.ceil(heightY/(set.fallDuration/(1000/set.fps)));
+		var stripeSpeed=Math.ceil(heightY/(set.stripeFallDuration/(1000/set.fps)));
+		var stripeMargin=set.stripeMargin*scale;
+		
+		var Y0=1 << (Math.round(Math.log(bufferSize)/Math.log(2) + 3) << 1);
+		var logY0 = Math.log(Y0)/Math.log(10);
+		var dBmax=20*Math.log(0x7fff)/Math.log(10);
+		
+		var fftSize=bufferSize/2;
+		var fftSize5k=Math.min(fftSize,Math.floor(fftSize*5000/(sampleRate/2)));//5khz所在位置，8000采样率及以下最高只有4khz
+		var fftSize5kIsAll=fftSize5k==fftSize;
+		var line80=fftSize5kIsAll?lineCount:Math.round(lineCount*0.8);//80%的柱子位置
+		var fftSizeStep1=fftSize5k/line80;
+		var fftSizeStep2=fftSize5kIsAll?0:(fftSize-fftSize5k)/(lineCount-line80);
+		var fftIdx=0;
+		for(var i=0;i<lineCount;i++){
+			//不采用jmp123的非线性划分频段，录音语音并不适用于音乐的频率，应当弱化高频部分
+			//80%关注0-5khz主要人声部分 20%关注剩下的高频，这样不管什么采样率都能做到大部分频率显示一致。
+			var start=Math.ceil(fftIdx);
+			if(i<line80){
+				//5khz以下
+				fftIdx+=fftSizeStep1;
+			}else{
+				//5khz以上
+				fftIdx+=fftSizeStep2;
+			};
+			var end=Math.min(Math.ceil(fftIdx),fftSize);
+			
+			
+			//参考AudioGUI.java .drawHistogram方法
+			
+			//查找当前频段的最大"幅值"
+			var maxAmp=0;
+			for (var j=start; j<end; j++) {
+				maxAmp=Math.max(maxAmp,Math.abs(frequencyData[j]));
+			};
+			
+			//计算音量
+			var dB= (maxAmp > Y0) ? Math.floor((Math.log(maxAmp)/Math.log(10) - logY0) * 17) : 0;
+			var h=heightY*Math.min(dB/dBmax,1);
+			
+			//使柱子匀速下降
+			lastH[i]=(lastH[i]||0)-speed;
+			if(h<lastH[i]){h=lastH[i];};
+			if(h<0){h=0;};
+			lastH[i]=h;
+			
+			var shi=stripesH[i]||0;
+			if(h&&h+stripeMargin>shi) {
+				stripesH[i]=h+stripeMargin;
+			}else{
+				//使峰值小横条匀速度下落
+				var sh =shi-stripeSpeed;
+				if(sh < 0){sh = 0;};
+				stripesH[i] = sh;
+			};
+		};
+		
+		//开始绘制图形
+		ctx.clearRect(0,0,width,height);
+		
+		var linear1=This.genLinear(ctx,set.linear,originY,originY-heightY);//上半部分的填充
+		var stripeLinear1=set.stripeLinear&&This.genLinear(ctx,set.stripeLinear,originY,originY-heightY)||linear1;//上半部分的峰值小横条填充
+		
+		var linear2=This.genLinear(ctx,set.linear,originY,originY+heightY);//下半部分的填充
+		var stripeLinear2=set.stripeLinear&&This.genLinear(ctx,set.stripeLinear,originY,originY+heightY)||linear2;//上半部分的峰值小横条填充
+		
+		//计算柱子间距
+		ctx.shadowBlur=set.shadowBlur*scale;
+		ctx.shadowColor=set.shadowColor;
+		var mirrorEnable=set.mirrorEnable;
+		var mirrorCount=mirrorEnable?lineCount*2-1:lineCount;//镜像柱子数量翻一倍-1根
+		
+		var widthRatio=set.widthRatio;
+		var spaceWidth=set.spaceWidth*scale;
+		if(spaceWidth!=0){
+			widthRatio=(width-spaceWidth*(mirrorCount+1))/width;
+		};
+		
+		var lineWidth=Math.max(1*scale,Math.floor((width*widthRatio)/mirrorCount));//柱子宽度至少1个单位
+		var spaceFloat=(width-mirrorCount*lineWidth)/(mirrorCount+1);//均匀间隔，首尾都留空，可能为负数，柱子将发生重叠
+		
+		//绘制柱子
+		var minHeight=set.minHeight*scale;
+		var mirrorSubX=spaceFloat+lineWidth/2;
+		var XFloat=mirrorEnable?width/2-mirrorSubX:0;//镜像时，中间柱子位于正中心
+		for(var i=0,xFloat=XFloat,x,y,h;i<lineCount;i++){
+			xFloat+=spaceFloat;
+			x=Math.floor(xFloat);
+			h=Math.max(lastH[i],minHeight);
+			
+			//绘制上半部分
+			if(originY!=0){
+				y=originY-h;
+				ctx.fillStyle=linear1;
+				ctx.fillRect(x, y, lineWidth, h);
+			};
+			//绘制下半部分
+			if(originY!=height){
+				ctx.fillStyle=linear2;
+				ctx.fillRect(x, originY, lineWidth, h);
+			};
+			
+			xFloat+=lineWidth;
+		};
+		
+		//绘制柱子顶上峰值小横条
+		if(set.stripeEnable){
+			var stripeShadowBlur=set.stripeShadowBlur;
+			ctx.shadowBlur=(stripeShadowBlur==-1?set.shadowBlur:stripeShadowBlur)*scale;
+			ctx.shadowColor=set.stripeShadowColor||set.shadowColor;
+			var stripeHeight=set.stripeHeight*scale;
+			for(var i=0,xFloat=XFloat,x,y,h;i<lineCount;i++){
+				xFloat+=spaceFloat;
+				x=Math.floor(xFloat);
+				h=stripesH[i];
+				
+				//绘制上半部分
+				if(originY!=0){
+					y=originY-h-stripeHeight;
+					if(y<0){y=0;};
+					ctx.fillStyle=stripeLinear1;
+					ctx.fillRect(x, y, lineWidth, stripeHeight);
+				};
+				//绘制下半部分
+				if(originY!=height){
+					y=originY+h;
+					if(y+stripeHeight>height){
+						y=height-stripeHeight;
+					};
+					ctx.fillStyle=stripeLinear2;
+					ctx.fillRect(x, y, lineWidth, stripeHeight);
+				};
+				
+				xFloat+=lineWidth;
+			};
+		};
+		
+		//镜像，从中间直接镜像即可
+		if(mirrorEnable){
+			var srcW=Math.floor(width/2);
+			ctx.save();
+			ctx.scale(-1,1);
+			ctx.drawImage(This.canvas,Math.ceil(width/2),0,srcW,height,-srcW,0,srcW,height);
+			ctx.restore();
+		};
+		
+		set.onDraw(frequencyData,sampleRate);
+	}
+};
+Recorder.FrequencyHistogramView=FrequencyHistogramView;
+
+	
+})();
\ No newline at end of file
diff --git a/web/static/js/jquery.js b/web/static/js/jquery.js
new file mode 100644
index 0000000..fc6c299
--- /dev/null
+++ b/web/static/js/jquery.js
@@ -0,0 +1,10881 @@
+/*!
+ * jQuery JavaScript Library v3.6.0
+ * https://jquery.com/
+ *
+ * Includes Sizzle.js
+ * https://sizzlejs.com/
+ *
+ * Copyright OpenJS Foundation and other contributors
+ * Released under the MIT license
+ * https://jquery.org/license
+ *
+ * Date: 2021-03-02T17:08Z
+ */
+( function( global, factory ) {
+
+	"use strict";
+
+	if ( typeof module === "object" && typeof module.exports === "object" ) {
+
+		// For CommonJS and CommonJS-like environments where a proper `window`
+		// is present, execute the factory and get jQuery.
+		// For environments that do not have a `window` with a `document`
+		// (such as Node.js), expose a factory as module.exports.
+		// This accentuates the need for the creation of a real `window`.
+		// e.g. var jQuery = require("jquery")(window);
+		// See ticket #14549 for more info.
+		module.exports = global.document ?
+			factory( global, true ) :
+			function( w ) {
+				if ( !w.document ) {
+					throw new Error( "jQuery requires a window with a document" );
+				}
+				return factory( w );
+			};
+	} else {
+		factory( global );
+	}
+
+// Pass this if window is not defined yet
+} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {
+
+// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1
+// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode
+// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common
+// enough that all such attempts are guarded in a try block.
+"use strict";
+
+var arr = [];
+
+var getProto = Object.getPrototypeOf;
+
+var slice = arr.slice;
+
+var flat = arr.flat ? function( array ) {
+	return arr.flat.call( array );
+} : function( array ) {
+	return arr.concat.apply( [], array );
+};
+
+
+var push = arr.push;
+
+var indexOf = arr.indexOf;
+
+var class2type = {};
+
+var toString = class2type.toString;
+
+var hasOwn = class2type.hasOwnProperty;
+
+var fnToString = hasOwn.toString;
+
+var ObjectFunctionString = fnToString.call( Object );
+
+var support = {};
+
+var isFunction = function isFunction( obj ) {
+
+		// Support: Chrome <=57, Firefox <=52
+		// In some browsers, typeof returns "function" for HTML <object> elements
+		// (i.e., `typeof document.createElement( "object" ) === "function"`).
+		// We don't want to classify *any* DOM node as a function.
+		// Support: QtWeb <=3.8.5, WebKit <=534.34, wkhtmltopdf tool <=0.12.5
+		// Plus for old WebKit, typeof returns "function" for HTML collections
+		// (e.g., `typeof document.getElementsByTagName("div") === "function"`). (gh-4756)
+		return typeof obj === "function" && typeof obj.nodeType !== "number" &&
+			typeof obj.item !== "function";
+	};
+
+
+var isWindow = function isWindow( obj ) {
+		return obj != null && obj === obj.window;
+	};
+
+
+var document = window.document;
+
+
+
+	var preservedScriptAttributes = {
+		type: true,
+		src: true,
+		nonce: true,
+		noModule: true
+	};
+
+	function DOMEval( code, node, doc ) {
+		doc = doc || document;
+
+		var i, val,
+			script = doc.createElement( "script" );
+
+		script.text = code;
+		if ( node ) {
+			for ( i in preservedScriptAttributes ) {
+
+				// Support: Firefox 64+, Edge 18+
+				// Some browsers don't support the "nonce" property on scripts.
+				// On the other hand, just using `getAttribute` is not enough as
+				// the `nonce` attribute is reset to an empty string whenever it
+				// becomes browsing-context connected.
+				// See https://github.com/whatwg/html/issues/2369
+				// See https://html.spec.whatwg.org/#nonce-attributes
+				// The `node.getAttribute` check was added for the sake of
+				// `jQuery.globalEval` so that it can fake a nonce-containing node
+				// via an object.
+				val = node[ i ] || node.getAttribute && node.getAttribute( i );
+				if ( val ) {
+					script.setAttribute( i, val );
+				}
+			}
+		}
+		doc.head.appendChild( script ).parentNode.removeChild( script );
+	}
+
+
+function toType( obj ) {
+	if ( obj == null ) {
+		return obj + "";
+	}
+
+	// Support: Android <=2.3 only (functionish RegExp)
+	return typeof obj === "object" || typeof obj === "function" ?
+		class2type[ toString.call( obj ) ] || "object" :
+		typeof obj;
+}
+/* global Symbol */
+// Defining this global in .eslintrc.json would create a danger of using the global
+// unguarded in another place, it seems safer to define global only for this module
+
+
+
+var
+	version = "3.6.0",
+
+	// Define a local copy of jQuery
+	jQuery = function( selector, context ) {
+
+		// The jQuery object is actually just the init constructor 'enhanced'
+		// Need init if jQuery is called (just allow error to be thrown if not included)
+		return new jQuery.fn.init( selector, context );
+	};
+
+jQuery.fn = jQuery.prototype = {
+
+	// The current version of jQuery being used
+	jquery: version,
+
+	constructor: jQuery,
+
+	// The default length of a jQuery object is 0
+	length: 0,
+
+	toArray: function() {
+		return slice.call( this );
+	},
+
+	// Get the Nth element in the matched element set OR
+	// Get the whole matched element set as a clean array
+	get: function( num ) {
+
+		// Return all the elements in a clean array
+		if ( num == null ) {
+			return slice.call( this );
+		}
+
+		// Return just the one element from the set
+		return num < 0 ? this[ num + this.length ] : this[ num ];
+	},
+
+	// Take an array of elements and push it onto the stack
+	// (returning the new matched element set)
+	pushStack: function( elems ) {
+
+		// Build a new jQuery matched element set
+		var ret = jQuery.merge( this.constructor(), elems );
+
+		// Add the old object onto the stack (as a reference)
+		ret.prevObject = this;
+
+		// Return the newly-formed element set
+		return ret;
+	},
+
+	// Execute a callback for every element in the matched set.
+	each: function( callback ) {
+		return jQuery.each( this, callback );
+	},
+
+	map: function( callback ) {
+		return this.pushStack( jQuery.map( this, function( elem, i ) {
+			return callback.call( elem, i, elem );
+		} ) );
+	},
+
+	slice: function() {
+		return this.pushStack( slice.apply( this, arguments ) );
+	},
+
+	first: function() {
+		return this.eq( 0 );
+	},
+
+	last: function() {
+		return this.eq( -1 );
+	},
+
+	even: function() {
+		return this.pushStack( jQuery.grep( this, function( _elem, i ) {
+			return ( i + 1 ) % 2;
+		} ) );
+	},
+
+	odd: function() {
+		return this.pushStack( jQuery.grep( this, function( _elem, i ) {
+			return i % 2;
+		} ) );
+	},
+
+	eq: function( i ) {
+		var len = this.length,
+			j = +i + ( i < 0 ? len : 0 );
+		return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
+	},
+
+	end: function() {
+		return this.prevObject || this.constructor();
+	},
+
+	// For internal use only.
+	// Behaves like an Array's method, not like a jQuery method.
+	push: push,
+	sort: arr.sort,
+	splice: arr.splice
+};
+
+jQuery.extend = jQuery.fn.extend = function() {
+	var options, name, src, copy, copyIsArray, clone,
+		target = arguments[ 0 ] || {},
+		i = 1,
+		length = arguments.length,
+		deep = false;
+
+	// Handle a deep copy situation
+	if ( typeof target === "boolean" ) {
+		deep = target;
+
+		// Skip the boolean and the target
+		target = arguments[ i ] || {};
+		i++;
+	}
+
+	// Handle case when target is a string or something (possible in deep copy)
+	if ( typeof target !== "object" && !isFunction( target ) ) {
+		target = {};
+	}
+
+	// Extend jQuery itself if only one argument is passed
+	if ( i === length ) {
+		target = this;
+		i--;
+	}
+
+	for ( ; i < length; i++ ) {
+
+		// Only deal with non-null/undefined values
+		if ( ( options = arguments[ i ] ) != null ) {
+
+			// Extend the base object
+			for ( name in options ) {
+				copy = options[ name ];
+
+				// Prevent Object.prototype pollution
+				// Prevent never-ending loop
+				if ( name === "__proto__" || target === copy ) {
+					continue;
+				}
+
+				// Recurse if we're merging plain objects or arrays
+				if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
+					( copyIsArray = Array.isArray( copy ) ) ) ) {
+					src = target[ name ];
+
+					// Ensure proper type for the source value
+					if ( copyIsArray && !Array.isArray( src ) ) {
+						clone = [];
+					} else if ( !copyIsArray && !jQuery.isPlainObject( src ) ) {
+						clone = {};
+					} else {
+						clone = src;
+					}
+					copyIsArray = false;
+
+					// Never move original objects, clone them
+					target[ name ] = jQuery.extend( deep, clone, copy );
+
+				// Don't bring in undefined values
+				} else if ( copy !== undefined ) {
+					target[ name ] = copy;
+				}
+			}
+		}
+	}
+
+	// Return the modified object
+	return target;
+};
+
+jQuery.extend( {
+
+	// Unique for each copy of jQuery on the page
+	expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),
+
+	// Assume jQuery is ready without the ready module
+	isReady: true,
+
+	error: function( msg ) {
+		throw new Error( msg );
+	},
+
+	noop: function() {},
+
+	isPlainObject: function( obj ) {
+		var proto, Ctor;
+
+		// Detect obvious negatives
+		// Use toString instead of jQuery.type to catch host objects
+		if ( !obj || toString.call( obj ) !== "[object Object]" ) {
+			return false;
+		}
+
+		proto = getProto( obj );
+
+		// Objects with no prototype (e.g., `Object.create( null )`) are plain
+		if ( !proto ) {
+			return true;
+		}
+
+		// Objects with prototype are plain iff they were constructed by a global Object function
+		Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;
+		return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;
+	},
+
+	isEmptyObject: function( obj ) {
+		var name;
+
+		for ( name in obj ) {
+			return false;
+		}
+		return true;
+	},
+
+	// Evaluates a script in a provided context; falls back to the global one
+	// if not specified.
+	globalEval: function( code, options, doc ) {
+		DOMEval( code, { nonce: options && options.nonce }, doc );
+	},
+
+	each: function( obj, callback ) {
+		var length, i = 0;
+
+		if ( isArrayLike( obj ) ) {
+			length = obj.length;
+			for ( ; i < length; i++ ) {
+				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
+					break;
+				}
+			}
+		} else {
+			for ( i in obj ) {
+				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
+					break;
+				}
+			}
+		}
+
+		return obj;
+	},
+
+	// results is for internal usage only
+	makeArray: function( arr, results ) {
+		var ret = results || [];
+
+		if ( arr != null ) {
+			if ( isArrayLike( Object( arr ) ) ) {
+				jQuery.merge( ret,
+					typeof arr === "string" ?
+						[ arr ] : arr
+				);
+			} else {
+				push.call( ret, arr );
+			}
+		}
+
+		return ret;
+	},
+
+	inArray: function( elem, arr, i ) {
+		return arr == null ? -1 : indexOf.call( arr, elem, i );
+	},
+
+	// Support: Android <=4.0 only, PhantomJS 1 only
+	// push.apply(_, arraylike) throws on ancient WebKit
+	merge: function( first, second ) {
+		var len = +second.length,
+			j = 0,
+			i = first.length;
+
+		for ( ; j < len; j++ ) {
+			first[ i++ ] = second[ j ];
+		}
+
+		first.length = i;
+
+		return first;
+	},
+
+	grep: function( elems, callback, invert ) {
+		var callbackInverse,
+			matches = [],
+			i = 0,
+			length = elems.length,
+			callbackExpect = !invert;
+
+		// Go through the array, only saving the items
+		// that pass the validator function
+		for ( ; i < length; i++ ) {
+			callbackInverse = !callback( elems[ i ], i );
+			if ( callbackInverse !== callbackExpect ) {
+				matches.push( elems[ i ] );
+			}
+		}
+
+		return matches;
+	},
+
+	// arg is for internal usage only
+	map: function( elems, callback, arg ) {
+		var length, value,
+			i = 0,
+			ret = [];
+
+		// Go through the array, translating each of the items to their new values
+		if ( isArrayLike( elems ) ) {
+			length = elems.length;
+			for ( ; i < length; i++ ) {
+				value = callback( elems[ i ], i, arg );
+
+				if ( value != null ) {
+					ret.push( value );
+				}
+			}
+
+		// Go through every key on the object,
+		} else {
+			for ( i in elems ) {
+				value = callback( elems[ i ], i, arg );
+
+				if ( value != null ) {
+					ret.push( value );
+				}
+			}
+		}
+
+		// Flatten any nested arrays
+		return flat( ret );
+	},
+
+	// A global GUID counter for objects
+	guid: 1,
+
+	// jQuery.support is not used in Core but other projects attach their
+	// properties to it so it needs to exist.
+	support: support
+} );
+
+if ( typeof Symbol === "function" ) {
+	jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
+}
+
+// Populate the class2type map
+jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
+	function( _i, name ) {
+		class2type[ "[object " + name + "]" ] = name.toLowerCase();
+	} );
+
+function isArrayLike( obj ) {
+
+	// Support: real iOS 8.2 only (not reproducible in simulator)
+	// `in` check used to prevent JIT error (gh-2145)
+	// hasOwn isn't used here due to false negatives
+	// regarding Nodelist length in IE
+	var length = !!obj && "length" in obj && obj.length,
+		type = toType( obj );
+
+	if ( isFunction( obj ) || isWindow( obj ) ) {
+		return false;
+	}
+
+	return type === "array" || length === 0 ||
+		typeof length === "number" && length > 0 && ( length - 1 ) in obj;
+}
+var Sizzle =
+/*!
+ * Sizzle CSS Selector Engine v2.3.6
+ * https://sizzlejs.com/
+ *
+ * Copyright JS Foundation and other contributors
+ * Released under the MIT license
+ * https://js.foundation/
+ *
+ * Date: 2021-02-16
+ */
+( function( window ) {
+var i,
+	support,
+	Expr,
+	getText,
+	isXML,
+	tokenize,
+	compile,
+	select,
+	outermostContext,
+	sortInput,
+	hasDuplicate,
+
+	// Local document vars
+	setDocument,
+	document,
+	docElem,
+	documentIsHTML,
+	rbuggyQSA,
+	rbuggyMatches,
+	matches,
+	contains,
+
+	// Instance-specific data
+	expando = "sizzle" + 1 * new Date(),
+	preferredDoc = window.document,
+	dirruns = 0,
+	done = 0,
+	classCache = createCache(),
+	tokenCache = createCache(),
+	compilerCache = createCache(),
+	nonnativeSelectorCache = createCache(),
+	sortOrder = function( a, b ) {
+		if ( a === b ) {
+			hasDuplicate = true;
+		}
+		return 0;
+	},
+
+	// Instance methods
+	hasOwn = ( {} ).hasOwnProperty,
+	arr = [],
+	pop = arr.pop,
+	pushNative = arr.push,
+	push = arr.push,
+	slice = arr.slice,
+
+	// Use a stripped-down indexOf as it's faster than native
+	// https://jsperf.com/thor-indexof-vs-for/5
+	indexOf = function( list, elem ) {
+		var i = 0,
+			len = list.length;
+		for ( ; i < len; i++ ) {
+			if ( list[ i ] === elem ) {
+				return i;
+			}
+		}
+		return -1;
+	},
+
+	booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|" +
+		"ismap|loop|multiple|open|readonly|required|scoped",
+
+	// Regular expressions
+
+	// http://www.w3.org/TR/css3-selectors/#whitespace
+	whitespace = "[\\x20\\t\\r\\n\\f]",
+
+	// https://www.w3.org/TR/css-syntax-3/#ident-token-diagram
+	identifier = "(?:\\\\[\\da-fA-F]{1,6}" + whitespace +
+		"?|\\\\[^\\r\\n\\f]|[\\w-]|[^\0-\\x7f])+",
+
+	// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
+	attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
+
+		// Operator (capture 2)
+		"*([*^$|!~]?=)" + whitespace +
+
+		// "Attribute values must be CSS identifiers [capture 5]
+		// or strings [capture 3 or capture 4]"
+		"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" +
+		whitespace + "*\\]",
+
+	pseudos = ":(" + identifier + ")(?:\\((" +
+
+		// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
+		// 1. quoted (capture 3; capture 4 or capture 5)
+		"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
+
+		// 2. simple (capture 6)
+		"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
+
+		// 3. anything else (capture 2)
+		".*" +
+		")\\)|)",
+
+	// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
+	rwhitespace = new RegExp( whitespace + "+", "g" ),
+	rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" +
+		whitespace + "+$", "g" ),
+
+	rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
+	rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace +
+		"*" ),
+	rdescend = new RegExp( whitespace + "|>" ),
+
+	rpseudo = new RegExp( pseudos ),
+	ridentifier = new RegExp( "^" + identifier + "$" ),
+
+	matchExpr = {
+		"ID": new RegExp( "^#(" + identifier + ")" ),
+		"CLASS": new RegExp( "^\\.(" + identifier + ")" ),
+		"TAG": new RegExp( "^(" + identifier + "|[*])" ),
+		"ATTR": new RegExp( "^" + attributes ),
+		"PSEUDO": new RegExp( "^" + pseudos ),
+		"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" +
+			whitespace + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" +
+			whitespace + "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
+		"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
+
+		// For use in libraries implementing .is()
+		// We use this for POS matching in `select`
+		"needsContext": new RegExp( "^" + whitespace +
+			"*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + whitespace +
+			"*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
+	},
+
+	rhtml = /HTML$/i,
+	rinputs = /^(?:input|select|textarea|button)$/i,
+	rheader = /^h\d$/i,
+
+	rnative = /^[^{]+\{\s*\[native \w/,
+
+	// Easily-parseable/retrievable ID or TAG or CLASS selectors
+	rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
+
+	rsibling = /[+~]/,
+
+	// CSS escapes
+	// http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
+	runescape = new RegExp( "\\\\[\\da-fA-F]{1,6}" + whitespace + "?|\\\\([^\\r\\n\\f])", "g" ),
+	funescape = function( escape, nonHex ) {
+		var high = "0x" + escape.slice( 1 ) - 0x10000;
+
+		return nonHex ?
+
+			// Strip the backslash prefix from a non-hex escape sequence
+			nonHex :
+
+			// Replace a hexadecimal escape sequence with the encoded Unicode code point
+			// Support: IE <=11+
+			// For values outside the Basic Multilingual Plane (BMP), manually construct a
+			// surrogate pair
+			high < 0 ?
+				String.fromCharCode( high + 0x10000 ) :
+				String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
+	},
+
+	// CSS string/identifier serialization
+	// https://drafts.csswg.org/cssom/#common-serializing-idioms
+	rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,
+	fcssescape = function( ch, asCodePoint ) {
+		if ( asCodePoint ) {
+
+			// U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
+			if ( ch === "\0" ) {
+				return "\uFFFD";
+			}
+
+			// Control characters and (dependent upon position) numbers get escaped as code points
+			return ch.slice( 0, -1 ) + "\\" +
+				ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
+		}
+
+		// Other potentially-special ASCII characters get backslash-escaped
+		return "\\" + ch;
+	},
+
+	// Used for iframes
+	// See setDocument()
+	// Removing the function wrapper causes a "Permission Denied"
+	// error in IE
+	unloadHandler = function() {
+		setDocument();
+	},
+
+	inDisabledFieldset = addCombinator(
+		function( elem ) {
+			return elem.disabled === true && elem.nodeName.toLowerCase() === "fieldset";
+		},
+		{ dir: "parentNode", next: "legend" }
+	);
+
+// Optimize for push.apply( _, NodeList )
+try {
+	push.apply(
+		( arr = slice.call( preferredDoc.childNodes ) ),
+		preferredDoc.childNodes
+	);
+
+	// Support: Android<4.0
+	// Detect silently failing push.apply
+	// eslint-disable-next-line no-unused-expressions
+	arr[ preferredDoc.childNodes.length ].nodeType;
+} catch ( e ) {
+	push = { apply: arr.length ?
+
+		// Leverage slice if possible
+		function( target, els ) {
+			pushNative.apply( target, slice.call( els ) );
+		} :
+
+		// Support: IE<9
+		// Otherwise append directly
+		function( target, els ) {
+			var j = target.length,
+				i = 0;
+
+			// Can't trust NodeList.length
+			while ( ( target[ j++ ] = els[ i++ ] ) ) {}
+			target.length = j - 1;
+		}
+	};
+}
+
+function Sizzle( selector, context, results, seed ) {
+	var m, i, elem, nid, match, groups, newSelector,
+		newContext = context && context.ownerDocument,
+
+		// nodeType defaults to 9, since context defaults to document
+		nodeType = context ? context.nodeType : 9;
+
+	results = results || [];
+
+	// Return early from calls with invalid selector or context
+	if ( typeof selector !== "string" || !selector ||
+		nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {
+
+		return results;
+	}
+
+	// Try to shortcut find operations (as opposed to filters) in HTML documents
+	if ( !seed ) {
+		setDocument( context );
+		context = context || document;
+
+		if ( documentIsHTML ) {
+
+			// If the selector is sufficiently simple, try using a "get*By*" DOM method
+			// (excepting DocumentFragment context, where the methods don't exist)
+			if ( nodeType !== 11 && ( match = rquickExpr.exec( selector ) ) ) {
+
+				// ID selector
+				if ( ( m = match[ 1 ] ) ) {
+
+					// Document context
+					if ( nodeType === 9 ) {
+						if ( ( elem = context.getElementById( m ) ) ) {
+
+							// Support: IE, Opera, Webkit
+							// TODO: identify versions
+							// getElementById can match elements by name instead of ID
+							if ( elem.id === m ) {
+								results.push( elem );
+								return results;
+							}
+						} else {
+							return results;
+						}
+
+					// Element context
+					} else {
+
+						// Support: IE, Opera, Webkit
+						// TODO: identify versions
+						// getElementById can match elements by name instead of ID
+						if ( newContext && ( elem = newContext.getElementById( m ) ) &&
+							contains( context, elem ) &&
+							elem.id === m ) {
+
+							results.push( elem );
+							return results;
+						}
+					}
+
+				// Type selector
+				} else if ( match[ 2 ] ) {
+					push.apply( results, context.getElementsByTagName( selector ) );
+					return results;
+
+				// Class selector
+				} else if ( ( m = match[ 3 ] ) && support.getElementsByClassName &&
+					context.getElementsByClassName ) {
+
+					push.apply( results, context.getElementsByClassName( m ) );
+					return results;
+				}
+			}
+
+			// Take advantage of querySelectorAll
+			if ( support.qsa &&
+				!nonnativeSelectorCache[ selector + " " ] &&
+				( !rbuggyQSA || !rbuggyQSA.test( selector ) ) &&
+
+				// Support: IE 8 only
+				// Exclude object elements
+				( nodeType !== 1 || context.nodeName.toLowerCase() !== "object" ) ) {
+
+				newSelector = selector;
+				newContext = context;
+
+				// qSA considers elements outside a scoping root when evaluating child or
+				// descendant combinators, which is not what we want.
+				// In such cases, we work around the behavior by prefixing every selector in the
+				// list with an ID selector referencing the scope context.
+				// The technique has to be used as well when a leading combinator is used
+				// as such selectors are not recognized by querySelectorAll.
+				// Thanks to Andrew Dupont for this technique.
+				if ( nodeType === 1 &&
+					( rdescend.test( selector ) || rcombinators.test( selector ) ) ) {
+
+					// Expand context for sibling selectors
+					newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
+						context;
+
+					// We can use :scope instead of the ID hack if the browser
+					// supports it & if we're not changing the context.
+					if ( newContext !== context || !support.scope ) {
+
+						// Capture the context ID, setting it first if necessary
+						if ( ( nid = context.getAttribute( "id" ) ) ) {
+							nid = nid.replace( rcssescape, fcssescape );
+						} else {
+							context.setAttribute( "id", ( nid = expando ) );
+						}
+					}
+
+					// Prefix every selector in the list
+					groups = tokenize( selector );
+					i = groups.length;
+					while ( i-- ) {
+						groups[ i ] = ( nid ? "#" + nid : ":scope" ) + " " +
+							toSelector( groups[ i ] );
+					}
+					newSelector = groups.join( "," );
+				}
+
+				try {
+					push.apply( results,
+						newContext.querySelectorAll( newSelector )
+					);
+					return results;
+				} catch ( qsaError ) {
+					nonnativeSelectorCache( selector, true );
+				} finally {
+					if ( nid === expando ) {
+						context.removeAttribute( "id" );
+					}
+				}
+			}
+		}
+	}
+
+	// All others
+	return select( selector.replace( rtrim, "$1" ), context, results, seed );
+}
+
+/**
+ * Create key-value caches of limited size
+ * @returns {function(string, object)} Returns the Object data after storing it on itself with
+ *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
+ *	deleting the oldest entry
+ */
+function createCache() {
+	var keys = [];
+
+	function cache( key, value ) {
+
+		// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
+		if ( keys.push( key + " " ) > Expr.cacheLength ) {
+
+			// Only keep the most recent entries
+			delete cache[ keys.shift() ];
+		}
+		return ( cache[ key + " " ] = value );
+	}
+	return cache;
+}
+
+/**
+ * Mark a function for special use by Sizzle
+ * @param {Function} fn The function to mark
+ */
+function markFunction( fn ) {
+	fn[ expando ] = true;
+	return fn;
+}
+
+/**
+ * Support testing using an element
+ * @param {Function} fn Passed the created element and returns a boolean result
+ */
+function assert( fn ) {
+	var el = document.createElement( "fieldset" );
+
+	try {
+		return !!fn( el );
+	} catch ( e ) {
+		return false;
+	} finally {
+
+		// Remove from its parent by default
+		if ( el.parentNode ) {
+			el.parentNode.removeChild( el );
+		}
+
+		// release memory in IE
+		el = null;
+	}
+}
+
+/**
+ * Adds the same handler for all of the specified attrs
+ * @param {String} attrs Pipe-separated list of attributes
+ * @param {Function} handler The method that will be applied
+ */
+function addHandle( attrs, handler ) {
+	var arr = attrs.split( "|" ),
+		i = arr.length;
+
+	while ( i-- ) {
+		Expr.attrHandle[ arr[ i ] ] = handler;
+	}
+}
+
+/**
+ * Checks document order of two siblings
+ * @param {Element} a
+ * @param {Element} b
+ * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
+ */
+function siblingCheck( a, b ) {
+	var cur = b && a,
+		diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
+			a.sourceIndex - b.sourceIndex;
+
+	// Use IE sourceIndex if available on both nodes
+	if ( diff ) {
+		return diff;
+	}
+
+	// Check if b follows a
+	if ( cur ) {
+		while ( ( cur = cur.nextSibling ) ) {
+			if ( cur === b ) {
+				return -1;
+			}
+		}
+	}
+
+	return a ? 1 : -1;
+}
+
+/**
+ * Returns a function to use in pseudos for input types
+ * @param {String} type
+ */
+function createInputPseudo( type ) {
+	return function( elem ) {
+		var name = elem.nodeName.toLowerCase();
+		return name === "input" && elem.type === type;
+	};
+}
+
+/**
+ * Returns a function to use in pseudos for buttons
+ * @param {String} type
+ */
+function createButtonPseudo( type ) {
+	return function( elem ) {
+		var name = elem.nodeName.toLowerCase();
+		return ( name === "input" || name === "button" ) && elem.type === type;
+	};
+}
+
+/**
+ * Returns a function to use in pseudos for :enabled/:disabled
+ * @param {Boolean} disabled true for :disabled; false for :enabled
+ */
+function createDisabledPseudo( disabled ) {
+
+	// Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
+	return function( elem ) {
+
+		// Only certain elements can match :enabled or :disabled
+		// https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
+		// https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
+		if ( "form" in elem ) {
+
+			// Check for inherited disabledness on relevant non-disabled elements:
+			// * listed form-associated elements in a disabled fieldset
+			//   https://html.spec.whatwg.org/multipage/forms.html#category-listed
+			//   https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
+			// * option elements in a disabled optgroup
+			//   https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
+			// All such elements have a "form" property.
+			if ( elem.parentNode && elem.disabled === false ) {
+
+				// Option elements defer to a parent optgroup if present
+				if ( "label" in elem ) {
+					if ( "label" in elem.parentNode ) {
+						return elem.parentNode.disabled === disabled;
+					} else {
+						return elem.disabled === disabled;
+					}
+				}
+
+				// Support: IE 6 - 11
+				// Use the isDisabled shortcut property to check for disabled fieldset ancestors
+				return elem.isDisabled === disabled ||
+
+					// Where there is no isDisabled, check manually
+					/* jshint -W018 */
+					elem.isDisabled !== !disabled &&
+					inDisabledFieldset( elem ) === disabled;
+			}
+
+			return elem.disabled === disabled;
+
+		// Try to winnow out elements that can't be disabled before trusting the disabled property.
+		// Some victims get caught in our net (label, legend, menu, track), but it shouldn't
+		// even exist on them, let alone have a boolean value.
+		} else if ( "label" in elem ) {
+			return elem.disabled === disabled;
+		}
+
+		// Remaining elements are neither :enabled nor :disabled
+		return false;
+	};
+}
+
+/**
+ * Returns a function to use in pseudos for positionals
+ * @param {Function} fn
+ */
+function createPositionalPseudo( fn ) {
+	return markFunction( function( argument ) {
+		argument = +argument;
+		return markFunction( function( seed, matches ) {
+			var j,
+				matchIndexes = fn( [], seed.length, argument ),
+				i = matchIndexes.length;
+
+			// Match elements found at the specified indexes
+			while ( i-- ) {
+				if ( seed[ ( j = matchIndexes[ i ] ) ] ) {
+					seed[ j ] = !( matches[ j ] = seed[ j ] );
+				}
+			}
+		} );
+	} );
+}
+
+/**
+ * Checks a node for validity as a Sizzle context
+ * @param {Element|Object=} context
+ * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
+ */
+function testContext( context ) {
+	return context && typeof context.getElementsByTagName !== "undefined" && context;
+}
+
+// Expose support vars for convenience
+support = Sizzle.support = {};
+
+/**
+ * Detects XML nodes
+ * @param {Element|Object} elem An element or a document
+ * @returns {Boolean} True iff elem is a non-HTML XML node
+ */
+isXML = Sizzle.isXML = function( elem ) {
+	var namespace = elem && elem.namespaceURI,
+		docElem = elem && ( elem.ownerDocument || elem ).documentElement;
+
+	// Support: IE <=8
+	// Assume HTML when documentElement doesn't yet exist, such as inside loading iframes
+	// https://bugs.jquery.com/ticket/4833
+	return !rhtml.test( namespace || docElem && docElem.nodeName || "HTML" );
+};
+
+/**
+ * Sets document-related variables once based on the current document
+ * @param {Element|Object} [doc] An element or document object to use to set the document
+ * @returns {Object} Returns the current document
+ */
+setDocument = Sizzle.setDocument = function( node ) {
+	var hasCompare, subWindow,
+		doc = node ? node.ownerDocument || node : preferredDoc;
+
+	// Return early if doc is invalid or already selected
+	// Support: IE 11+, Edge 17 - 18+
+	// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
+	// two documents; shallow comparisons work.
+	// eslint-disable-next-line eqeqeq
+	if ( doc == document || doc.nodeType !== 9 || !doc.documentElement ) {
+		return document;
+	}
+
+	// Update global variables
+	document = doc;
+	docElem = document.documentElement;
+	documentIsHTML = !isXML( document );
+
+	// Support: IE 9 - 11+, Edge 12 - 18+
+	// Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
+	// Support: IE 11+, Edge 17 - 18+
+	// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
+	// two documents; shallow comparisons work.
+	// eslint-disable-next-line eqeqeq
+	if ( preferredDoc != document &&
+		( subWindow = document.defaultView ) && subWindow.top !== subWindow ) {
+
+		// Support: IE 11, Edge
+		if ( subWindow.addEventListener ) {
+			subWindow.addEventListener( "unload", unloadHandler, false );
+
+		// Support: IE 9 - 10 only
+		} else if ( subWindow.attachEvent ) {
+			subWindow.attachEvent( "onunload", unloadHandler );
+		}
+	}
+
+	// Support: IE 8 - 11+, Edge 12 - 18+, Chrome <=16 - 25 only, Firefox <=3.6 - 31 only,
+	// Safari 4 - 5 only, Opera <=11.6 - 12.x only
+	// IE/Edge & older browsers don't support the :scope pseudo-class.
+	// Support: Safari 6.0 only
+	// Safari 6.0 supports :scope but it's an alias of :root there.
+	support.scope = assert( function( el ) {
+		docElem.appendChild( el ).appendChild( document.createElement( "div" ) );
+		return typeof el.querySelectorAll !== "undefined" &&
+			!el.querySelectorAll( ":scope fieldset div" ).length;
+	} );
+
+	/* Attributes
+	---------------------------------------------------------------------- */
+
+	// Support: IE<8
+	// Verify that getAttribute really returns attributes and not properties
+	// (excepting IE8 booleans)
+	support.attributes = assert( function( el ) {
+		el.className = "i";
+		return !el.getAttribute( "className" );
+	} );
+
+	/* getElement(s)By*
+	---------------------------------------------------------------------- */
+
+	// Check if getElementsByTagName("*") returns only elements
+	support.getElementsByTagName = assert( function( el ) {
+		el.appendChild( document.createComment( "" ) );
+		return !el.getElementsByTagName( "*" ).length;
+	} );
+
+	// Support: IE<9
+	support.getElementsByClassName = rnative.test( document.getElementsByClassName );
+
+	// Support: IE<10
+	// Check if getElementById returns elements by name
+	// The broken getElementById methods don't pick up programmatically-set names,
+	// so use a roundabout getElementsByName test
+	support.getById = assert( function( el ) {
+		docElem.appendChild( el ).id = expando;
+		return !document.getElementsByName || !document.getElementsByName( expando ).length;
+	} );
+
+	// ID filter and find
+	if ( support.getById ) {
+		Expr.filter[ "ID" ] = function( id ) {
+			var attrId = id.replace( runescape, funescape );
+			return function( elem ) {
+				return elem.getAttribute( "id" ) === attrId;
+			};
+		};
+		Expr.find[ "ID" ] = function( id, context ) {
+			if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
+				var elem = context.getElementById( id );
+				return elem ? [ elem ] : [];
+			}
+		};
+	} else {
+		Expr.filter[ "ID" ] =  function( id ) {
+			var attrId = id.replace( runescape, funescape );
+			return function( elem ) {
+				var node = typeof elem.getAttributeNode !== "undefined" &&
+					elem.getAttributeNode( "id" );
+				return node && node.value === attrId;
+			};
+		};
+
+		// Support: IE 6 - 7 only
+		// getElementById is not reliable as a find shortcut
+		Expr.find[ "ID" ] = function( id, context ) {
+			if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
+				var node, i, elems,
+					elem = context.getElementById( id );
+
+				if ( elem ) {
+
+					// Verify the id attribute
+					node = elem.getAttributeNode( "id" );
+					if ( node && node.value === id ) {
+						return [ elem ];
+					}
+
+					// Fall back on getElementsByName
+					elems = context.getElementsByName( id );
+					i = 0;
+					while ( ( elem = elems[ i++ ] ) ) {
+						node = elem.getAttributeNode( "id" );
+						if ( node && node.value === id ) {
+							return [ elem ];
+						}
+					}
+				}
+
+				return [];
+			}
+		};
+	}
+
+	// Tag
+	Expr.find[ "TAG" ] = support.getElementsByTagName ?
+		function( tag, context ) {
+			if ( typeof context.getElementsByTagName !== "undefined" ) {
+				return context.getElementsByTagName( tag );
+
+			// DocumentFragment nodes don't have gEBTN
+			} else if ( support.qsa ) {
+				return context.querySelectorAll( tag );
+			}
+		} :
+
+		function( tag, context ) {
+			var elem,
+				tmp = [],
+				i = 0,
+
+				// By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
+				results = context.getElementsByTagName( tag );
+
+			// Filter out possible comments
+			if ( tag === "*" ) {
+				while ( ( elem = results[ i++ ] ) ) {
+					if ( elem.nodeType === 1 ) {
+						tmp.push( elem );
+					}
+				}
+
+				return tmp;
+			}
+			return results;
+		};
+
+	// Class
+	Expr.find[ "CLASS" ] = support.getElementsByClassName && function( className, context ) {
+		if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
+			return context.getElementsByClassName( className );
+		}
+	};
+
+	/* QSA/matchesSelector
+	---------------------------------------------------------------------- */
+
+	// QSA and matchesSelector support
+
+	// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
+	rbuggyMatches = [];
+
+	// qSa(:focus) reports false when true (Chrome 21)
+	// We allow this because of a bug in IE8/9 that throws an error
+	// whenever `document.activeElement` is accessed on an iframe
+	// So, we allow :focus to pass through QSA all the time to avoid the IE error
+	// See https://bugs.jquery.com/ticket/13378
+	rbuggyQSA = [];
+
+	if ( ( support.qsa = rnative.test( document.querySelectorAll ) ) ) {
+
+		// Build QSA regex
+		// Regex strategy adopted from Diego Perini
+		assert( function( el ) {
+
+			var input;
+
+			// Select is set to empty string on purpose
+			// This is to test IE's treatment of not explicitly
+			// setting a boolean content attribute,
+			// since its presence should be enough
+			// https://bugs.jquery.com/ticket/12359
+			docElem.appendChild( el ).innerHTML = "<a id='" + expando + "'></a>" +
+				"<select id='" + expando + "-\r\\' msallowcapture=''>" +
+				"<option selected=''></option></select>";
+
+			// Support: IE8, Opera 11-12.16
+			// Nothing should be selected when empty strings follow ^= or $= or *=
+			// The test attribute must be unknown in Opera but "safe" for WinRT
+			// https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
+			if ( el.querySelectorAll( "[msallowcapture^='']" ).length ) {
+				rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
+			}
+
+			// Support: IE8
+			// Boolean attributes and "value" are not treated correctly
+			if ( !el.querySelectorAll( "[selected]" ).length ) {
+				rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
+			}
+
+			// Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
+			if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
+				rbuggyQSA.push( "~=" );
+			}
+
+			// Support: IE 11+, Edge 15 - 18+
+			// IE 11/Edge don't find elements on a `[name='']` query in some cases.
+			// Adding a temporary attribute to the document before the selection works
+			// around the issue.
+			// Interestingly, IE 10 & older don't seem to have the issue.
+			input = document.createElement( "input" );
+			input.setAttribute( "name", "" );
+			el.appendChild( input );
+			if ( !el.querySelectorAll( "[name='']" ).length ) {
+				rbuggyQSA.push( "\\[" + whitespace + "*name" + whitespace + "*=" +
+					whitespace + "*(?:''|\"\")" );
+			}
+
+			// Webkit/Opera - :checked should return selected option elements
+			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
+			// IE8 throws error here and will not see later tests
+			if ( !el.querySelectorAll( ":checked" ).length ) {
+				rbuggyQSA.push( ":checked" );
+			}
+
+			// Support: Safari 8+, iOS 8+
+			// https://bugs.webkit.org/show_bug.cgi?id=136851
+			// In-page `selector#id sibling-combinator selector` fails
+			if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) {
+				rbuggyQSA.push( ".#.+[+~]" );
+			}
+
+			// Support: Firefox <=3.6 - 5 only
+			// Old Firefox doesn't throw on a badly-escaped identifier.
+			el.querySelectorAll( "\\\f" );
+			rbuggyQSA.push( "[\\r\\n\\f]" );
+		} );
+
+		assert( function( el ) {
+			el.innerHTML = "<a href='' disabled='disabled'></a>" +
+				"<select disabled='disabled'><option/></select>";
+
+			// Support: Windows 8 Native Apps
+			// The type and name attributes are restricted during .innerHTML assignment
+			var input = document.createElement( "input" );
+			input.setAttribute( "type", "hidden" );
+			el.appendChild( input ).setAttribute( "name", "D" );
+
+			// Support: IE8
+			// Enforce case-sensitivity of name attribute
+			if ( el.querySelectorAll( "[name=d]" ).length ) {
+				rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
+			}
+
+			// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
+			// IE8 throws error here and will not see later tests
+			if ( el.querySelectorAll( ":enabled" ).length !== 2 ) {
+				rbuggyQSA.push( ":enabled", ":disabled" );
+			}
+
+			// Support: IE9-11+
+			// IE's :disabled selector does not pick up the children of disabled fieldsets
+			docElem.appendChild( el ).disabled = true;
+			if ( el.querySelectorAll( ":disabled" ).length !== 2 ) {
+				rbuggyQSA.push( ":enabled", ":disabled" );
+			}
+
+			// Support: Opera 10 - 11 only
+			// Opera 10-11 does not throw on post-comma invalid pseudos
+			el.querySelectorAll( "*,:x" );
+			rbuggyQSA.push( ",.*:" );
+		} );
+	}
+
+	if ( ( support.matchesSelector = rnative.test( ( matches = docElem.matches ||
+		docElem.webkitMatchesSelector ||
+		docElem.mozMatchesSelector ||
+		docElem.oMatchesSelector ||
+		docElem.msMatchesSelector ) ) ) ) {
+
+		assert( function( el ) {
+
+			// Check to see if it's possible to do matchesSelector
+			// on a disconnected node (IE 9)
+			support.disconnectedMatch = matches.call( el, "*" );
+
+			// This should fail with an exception
+			// Gecko does not error, returns false instead
+			matches.call( el, "[s!='']:x" );
+			rbuggyMatches.push( "!=", pseudos );
+		} );
+	}
+
+	rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join( "|" ) );
+	rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join( "|" ) );
+
+	/* Contains
+	---------------------------------------------------------------------- */
+	hasCompare = rnative.test( docElem.compareDocumentPosition );
+
+	// Element contains another
+	// Purposefully self-exclusive
+	// As in, an element does not contain itself
+	contains = hasCompare || rnative.test( docElem.contains ) ?
+		function( a, b ) {
+			var adown = a.nodeType === 9 ? a.documentElement : a,
+				bup = b && b.parentNode;
+			return a === bup || !!( bup && bup.nodeType === 1 && (
+				adown.contains ?
+					adown.contains( bup ) :
+					a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
+			) );
+		} :
+		function( a, b ) {
+			if ( b ) {
+				while ( ( b = b.parentNode ) ) {
+					if ( b === a ) {
+						return true;
+					}
+				}
+			}
+			return false;
+		};
+
+	/* Sorting
+	---------------------------------------------------------------------- */
+
+	// Document order sorting
+	sortOrder = hasCompare ?
+	function( a, b ) {
+
+		// Flag for duplicate removal
+		if ( a === b ) {
+			hasDuplicate = true;
+			return 0;
+		}
+
+		// Sort on method existence if only one input has compareDocumentPosition
+		var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
+		if ( compare ) {
+			return compare;
+		}
+
+		// Calculate position if both inputs belong to the same document
+		// Support: IE 11+, Edge 17 - 18+
+		// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
+		// two documents; shallow comparisons work.
+		// eslint-disable-next-line eqeqeq
+		compare = ( a.ownerDocument || a ) == ( b.ownerDocument || b ) ?
+			a.compareDocumentPosition( b ) :
+
+			// Otherwise we know they are disconnected
+			1;
+
+		// Disconnected nodes
+		if ( compare & 1 ||
+			( !support.sortDetached && b.compareDocumentPosition( a ) === compare ) ) {
+
+			// Choose the first element that is related to our preferred document
+			// Support: IE 11+, Edge 17 - 18+
+			// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
+			// two documents; shallow comparisons work.
+			// eslint-disable-next-line eqeqeq
+			if ( a == document || a.ownerDocument == preferredDoc &&
+				contains( preferredDoc, a ) ) {
+				return -1;
+			}
+
+			// Support: IE 11+, Edge 17 - 18+
+			// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
+			// two documents; shallow comparisons work.
+			// eslint-disable-next-line eqeqeq
+			if ( b == document || b.ownerDocument == preferredDoc &&
+				contains( preferredDoc, b ) ) {
+				return 1;
+			}
+
+			// Maintain original order
+			return sortInput ?
+				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
+				0;
+		}
+
+		return compare & 4 ? -1 : 1;
+	} :
+	function( a, b ) {
+
+		// Exit early if the nodes are identical
+		if ( a === b ) {
+			hasDuplicate = true;
+			return 0;
+		}
+
+		var cur,
+			i = 0,
+			aup = a.parentNode,
+			bup = b.parentNode,
+			ap = [ a ],
+			bp = [ b ];
+
+		// Parentless nodes are either documents or disconnected
+		if ( !aup || !bup ) {
+
+			// Support: IE 11+, Edge 17 - 18+
+			// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
+			// two documents; shallow comparisons work.
+			/* eslint-disable eqeqeq */
+			return a == document ? -1 :
+				b == document ? 1 :
+				/* eslint-enable eqeqeq */
+				aup ? -1 :
+				bup ? 1 :
+				sortInput ?
+				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
+				0;
+
+		// If the nodes are siblings, we can do a quick check
+		} else if ( aup === bup ) {
+			return siblingCheck( a, b );
+		}
+
+		// Otherwise we need full lists of their ancestors for comparison
+		cur = a;
+		while ( ( cur = cur.parentNode ) ) {
+			ap.unshift( cur );
+		}
+		cur = b;
+		while ( ( cur = cur.parentNode ) ) {
+			bp.unshift( cur );
+		}
+
+		// Walk down the tree looking for a discrepancy
+		while ( ap[ i ] === bp[ i ] ) {
+			i++;
+		}
+
+		return i ?
+
+			// Do a sibling check if the nodes have a common ancestor
+			siblingCheck( ap[ i ], bp[ i ] ) :
+
+			// Otherwise nodes in our document sort first
+			// Support: IE 11+, Edge 17 - 18+
+			// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
+			// two documents; shallow comparisons work.
+			/* eslint-disable eqeqeq */
+			ap[ i ] == preferredDoc ? -1 :
+			bp[ i ] == preferredDoc ? 1 :
+			/* eslint-enable eqeqeq */
+			0;
+	};
+
+	return document;
+};
+
+Sizzle.matches = function( expr, elements ) {
+	return Sizzle( expr, null, null, elements );
+};
+
+Sizzle.matchesSelector = function( elem, expr ) {
+	setDocument( elem );
+
+	if ( support.matchesSelector && documentIsHTML &&
+		!nonnativeSelectorCache[ expr + " " ] &&
+		( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
+		( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {
+
+		try {
+			var ret = matches.call( elem, expr );
+
+			// IE 9's matchesSelector returns false on disconnected nodes
+			if ( ret || support.disconnectedMatch ||
+
+				// As well, disconnected nodes are said to be in a document
+				// fragment in IE 9
+				elem.document && elem.document.nodeType !== 11 ) {
+				return ret;
+			}
+		} catch ( e ) {
+			nonnativeSelectorCache( expr, true );
+		}
+	}
+
+	return Sizzle( expr, document, null, [ elem ] ).length > 0;
+};
+
+Sizzle.contains = function( context, elem ) {
+
+	// Set document vars if needed
+	// Support: IE 11+, Edge 17 - 18+
+	// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
+	// two documents; shallow comparisons work.
+	// eslint-disable-next-line eqeqeq
+	if ( ( context.ownerDocument || context ) != document ) {
+		setDocument( context );
+	}
+	return contains( context, elem );
+};
+
+Sizzle.attr = function( elem, name ) {
+
+	// Set document vars if needed
+	// Support: IE 11+, Edge 17 - 18+
+	// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
+	// two documents; shallow comparisons work.
+	// eslint-disable-next-line eqeqeq
+	if ( ( elem.ownerDocument || elem ) != document ) {
+		setDocument( elem );
+	}
+
+	var fn = Expr.attrHandle[ name.toLowerCase() ],
+
+		// Don't get fooled by Object.prototype properties (jQuery #13807)
+		val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
+			fn( elem, name, !documentIsHTML ) :
+			undefined;
+
+	return val !== undefined ?
+		val :
+		support.attributes || !documentIsHTML ?
+			elem.getAttribute( name ) :
+			( val = elem.getAttributeNode( name ) ) && val.specified ?
+				val.value :
+				null;
+};
+
+Sizzle.escape = function( sel ) {
+	return ( sel + "" ).replace( rcssescape, fcssescape );
+};
+
+Sizzle.error = function( msg ) {
+	throw new Error( "Syntax error, unrecognized expression: " + msg );
+};
+
+/**
+ * Document sorting and removing duplicates
+ * @param {ArrayLike} results
+ */
+Sizzle.uniqueSort = function( results ) {
+	var elem,
+		duplicates = [],
+		j = 0,
+		i = 0;
+
+	// Unless we *know* we can detect duplicates, assume their presence
+	hasDuplicate = !support.detectDuplicates;
+	sortInput = !support.sortStable && results.slice( 0 );
+	results.sort( sortOrder );
+
+	if ( hasDuplicate ) {
+		while ( ( elem = results[ i++ ] ) ) {
+			if ( elem === results[ i ] ) {
+				j = duplicates.push( i );
+			}
+		}
+		while ( j-- ) {
+			results.splice( duplicates[ j ], 1 );
+		}
+	}
+
+	// Clear input after sorting to release objects
+	// See https://github.com/jquery/sizzle/pull/225
+	sortInput = null;
+
+	return results;
+};
+
+/**
+ * Utility function for retrieving the text value of an array of DOM nodes
+ * @param {Array|Element} elem
+ */
+getText = Sizzle.getText = function( elem ) {
+	var node,
+		ret = "",
+		i = 0,
+		nodeType = elem.nodeType;
+
+	if ( !nodeType ) {
+
+		// If no nodeType, this is expected to be an array
+		while ( ( node = elem[ i++ ] ) ) {
+
+			// Do not traverse comment nodes
+			ret += getText( node );
+		}
+	} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
+
+		// Use textContent for elements
+		// innerText usage removed for consistency of new lines (jQuery #11153)
+		if ( typeof elem.textContent === "string" ) {
+			return elem.textContent;
+		} else {
+
+			// Traverse its children
+			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
+				ret += getText( elem );
+			}
+		}
+	} else if ( nodeType === 3 || nodeType === 4 ) {
+		return elem.nodeValue;
+	}
+
+	// Do not include comment or processing instruction nodes
+
+	return ret;
+};
+
+Expr = Sizzle.selectors = {
+
+	// Can be adjusted by the user
+	cacheLength: 50,
+
+	createPseudo: markFunction,
+
+	match: matchExpr,
+
+	attrHandle: {},
+
+	find: {},
+
+	relative: {
+		">": { dir: "parentNode", first: true },
+		" ": { dir: "parentNode" },
+		"+": { dir: "previousSibling", first: true },
+		"~": { dir: "previousSibling" }
+	},
+
+	preFilter: {
+		"ATTR": function( match ) {
+			match[ 1 ] = match[ 1 ].replace( runescape, funescape );
+
+			// Move the given value to match[3] whether quoted or unquoted
+			match[ 3 ] = ( match[ 3 ] || match[ 4 ] ||
+				match[ 5 ] || "" ).replace( runescape, funescape );
+
+			if ( match[ 2 ] === "~=" ) {
+				match[ 3 ] = " " + match[ 3 ] + " ";
+			}
+
+			return match.slice( 0, 4 );
+		},
+
+		"CHILD": function( match ) {
+
+			/* matches from matchExpr["CHILD"]
+				1 type (only|nth|...)
+				2 what (child|of-type)
+				3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
+				4 xn-component of xn+y argument ([+-]?\d*n|)
+				5 sign of xn-component
+				6 x of xn-component
+				7 sign of y-component
+				8 y of y-component
+			*/
+			match[ 1 ] = match[ 1 ].toLowerCase();
+
+			if ( match[ 1 ].slice( 0, 3 ) === "nth" ) {
+
+				// nth-* requires argument
+				if ( !match[ 3 ] ) {
+					Sizzle.error( match[ 0 ] );
+				}
+
+				// numeric x and y parameters for Expr.filter.CHILD
+				// remember that false/true cast respectively to 0/1
+				match[ 4 ] = +( match[ 4 ] ?
+					match[ 5 ] + ( match[ 6 ] || 1 ) :
+					2 * ( match[ 3 ] === "even" || match[ 3 ] === "odd" ) );
+				match[ 5 ] = +( ( match[ 7 ] + match[ 8 ] ) || match[ 3 ] === "odd" );
+
+				// other types prohibit arguments
+			} else if ( match[ 3 ] ) {
+				Sizzle.error( match[ 0 ] );
+			}
+
+			return match;
+		},
+
+		"PSEUDO": function( match ) {
+			var excess,
+				unquoted = !match[ 6 ] && match[ 2 ];
+
+			if ( matchExpr[ "CHILD" ].test( match[ 0 ] ) ) {
+				return null;
+			}
+
+			// Accept quoted arguments as-is
+			if ( match[ 3 ] ) {
+				match[ 2 ] = match[ 4 ] || match[ 5 ] || "";
+
+			// Strip excess characters from unquoted arguments
+			} else if ( unquoted && rpseudo.test( unquoted ) &&
+
+				// Get excess from tokenize (recursively)
+				( excess = tokenize( unquoted, true ) ) &&
+
+				// advance to the next closing parenthesis
+				( excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length ) ) {
+
+				// excess is a negative index
+				match[ 0 ] = match[ 0 ].slice( 0, excess );
+				match[ 2 ] = unquoted.slice( 0, excess );
+			}
+
+			// Return only captures needed by the pseudo filter method (type and argument)
+			return match.slice( 0, 3 );
+		}
+	},
+
+	filter: {
+
+		"TAG": function( nodeNameSelector ) {
+			var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
+			return nodeNameSelector === "*" ?
+				function() {
+					return true;
+				} :
+				function( elem ) {
+					return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
+				};
+		},
+
+		"CLASS": function( className ) {
+			var pattern = classCache[ className + " " ];
+
+			return pattern ||
+				( pattern = new RegExp( "(^|" + whitespace +
+					")" + className + "(" + whitespace + "|$)" ) ) && classCache(
+						className, function( elem ) {
+							return pattern.test(
+								typeof elem.className === "string" && elem.className ||
+								typeof elem.getAttribute !== "undefined" &&
+									elem.getAttribute( "class" ) ||
+								""
+							);
+				} );
+		},
+
+		"ATTR": function( name, operator, check ) {
+			return function( elem ) {
+				var result = Sizzle.attr( elem, name );
+
+				if ( result == null ) {
+					return operator === "!=";
+				}
+				if ( !operator ) {
+					return true;
+				}
+
+				result += "";
+
+				/* eslint-disable max-len */
+
+				return operator === "=" ? result === check :
+					operator === "!=" ? result !== check :
+					operator === "^=" ? check && result.indexOf( check ) === 0 :
+					operator === "*=" ? check && result.indexOf( check ) > -1 :
+					operator === "$=" ? check && result.slice( -check.length ) === check :
+					operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
+					operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
+					false;
+				/* eslint-enable max-len */
+
+			};
+		},
+
+		"CHILD": function( type, what, _argument, first, last ) {
+			var simple = type.slice( 0, 3 ) !== "nth",
+				forward = type.slice( -4 ) !== "last",
+				ofType = what === "of-type";
+
+			return first === 1 && last === 0 ?
+
+				// Shortcut for :nth-*(n)
+				function( elem ) {
+					return !!elem.parentNode;
+				} :
+
+				function( elem, _context, xml ) {
+					var cache, uniqueCache, outerCache, node, nodeIndex, start,
+						dir = simple !== forward ? "nextSibling" : "previousSibling",
+						parent = elem.parentNode,
+						name = ofType && elem.nodeName.toLowerCase(),
+						useCache = !xml && !ofType,
+						diff = false;
+
+					if ( parent ) {
+
+						// :(first|last|only)-(child|of-type)
+						if ( simple ) {
+							while ( dir ) {
+								node = elem;
+								while ( ( node = node[ dir ] ) ) {
+									if ( ofType ?
+										node.nodeName.toLowerCase() === name :
+										node.nodeType === 1 ) {
+
+										return false;
+									}
+								}
+
+								// Reverse direction for :only-* (if we haven't yet done so)
+								start = dir = type === "only" && !start && "nextSibling";
+							}
+							return true;
+						}
+
+						start = [ forward ? parent.firstChild : parent.lastChild ];
+
+						// non-xml :nth-child(...) stores cache data on `parent`
+						if ( forward && useCache ) {
+
+							// Seek `elem` from a previously-cached index
+
+							// ...in a gzip-friendly way
+							node = parent;
+							outerCache = node[ expando ] || ( node[ expando ] = {} );
+
+							// Support: IE <9 only
+							// Defend against cloned attroperties (jQuery gh-1709)
+							uniqueCache = outerCache[ node.uniqueID ] ||
+								( outerCache[ node.uniqueID ] = {} );
+
+							cache = uniqueCache[ type ] || [];
+							nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
+							diff = nodeIndex && cache[ 2 ];
+							node = nodeIndex && parent.childNodes[ nodeIndex ];
+
+							while ( ( node = ++nodeIndex && node && node[ dir ] ||
+
+								// Fallback to seeking `elem` from the start
+								( diff = nodeIndex = 0 ) || start.pop() ) ) {
+
+								// When found, cache indexes on `parent` and break
+								if ( node.nodeType === 1 && ++diff && node === elem ) {
+									uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
+									break;
+								}
+							}
+
+						} else {
+
+							// Use previously-cached element index if available
+							if ( useCache ) {
+
+								// ...in a gzip-friendly way
+								node = elem;
+								outerCache = node[ expando ] || ( node[ expando ] = {} );
+
+								// Support: IE <9 only
+								// Defend against cloned attroperties (jQuery gh-1709)
+								uniqueCache = outerCache[ node.uniqueID ] ||
+									( outerCache[ node.uniqueID ] = {} );
+
+								cache = uniqueCache[ type ] || [];
+								nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
+								diff = nodeIndex;
+							}
+
+							// xml :nth-child(...)
+							// or :nth-last-child(...) or :nth(-last)?-of-type(...)
+							if ( diff === false ) {
+
+								// Use the same loop as above to seek `elem` from the start
+								while ( ( node = ++nodeIndex && node && node[ dir ] ||
+									( diff = nodeIndex = 0 ) || start.pop() ) ) {
+
+									if ( ( ofType ?
+										node.nodeName.toLowerCase() === name :
+										node.nodeType === 1 ) &&
+										++diff ) {
+
+										// Cache the index of each encountered element
+										if ( useCache ) {
+											outerCache = node[ expando ] ||
+												( node[ expando ] = {} );
+
+											// Support: IE <9 only
+											// Defend against cloned attroperties (jQuery gh-1709)
+											uniqueCache = outerCache[ node.uniqueID ] ||
+												( outerCache[ node.uniqueID ] = {} );
+
+											uniqueCache[ type ] = [ dirruns, diff ];
+										}
+
+										if ( node === elem ) {
+											break;
+										}
+									}
+								}
+							}
+						}
+
+						// Incorporate the offset, then check against cycle size
+						diff -= last;
+						return diff === first || ( diff % first === 0 && diff / first >= 0 );
+					}
+				};
+		},
+
+		"PSEUDO": function( pseudo, argument ) {
+
+			// pseudo-class names are case-insensitive
+			// http://www.w3.org/TR/selectors/#pseudo-classes
+			// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
+			// Remember that setFilters inherits from pseudos
+			var args,
+				fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
+					Sizzle.error( "unsupported pseudo: " + pseudo );
+
+			// The user may use createPseudo to indicate that
+			// arguments are needed to create the filter function
+			// just as Sizzle does
+			if ( fn[ expando ] ) {
+				return fn( argument );
+			}
+
+			// But maintain support for old signatures
+			if ( fn.length > 1 ) {
+				args = [ pseudo, pseudo, "", argument ];
+				return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
+					markFunction( function( seed, matches ) {
+						var idx,
+							matched = fn( seed, argument ),
+							i = matched.length;
+						while ( i-- ) {
+							idx = indexOf( seed, matched[ i ] );
+							seed[ idx ] = !( matches[ idx ] = matched[ i ] );
+						}
+					} ) :
+					function( elem ) {
+						return fn( elem, 0, args );
+					};
+			}
+
+			return fn;
+		}
+	},
+
+	pseudos: {
+
+		// Potentially complex pseudos
+		"not": markFunction( function( selector ) {
+
+			// Trim the selector passed to compile
+			// to avoid treating leading and trailing
+			// spaces as combinators
+			var input = [],
+				results = [],
+				matcher = compile( selector.replace( rtrim, "$1" ) );
+
+			return matcher[ expando ] ?
+				markFunction( function( seed, matches, _context, xml ) {
+					var elem,
+						unmatched = matcher( seed, null, xml, [] ),
+						i = seed.length;
+
+					// Match elements unmatched by `matcher`
+					while ( i-- ) {
+						if ( ( elem = unmatched[ i ] ) ) {
+							seed[ i ] = !( matches[ i ] = elem );
+						}
+					}
+				} ) :
+				function( elem, _context, xml ) {
+					input[ 0 ] = elem;
+					matcher( input, null, xml, results );
+
+					// Don't keep the element (issue #299)
+					input[ 0 ] = null;
+					return !results.pop();
+				};
+		} ),
+
+		"has": markFunction( function( selector ) {
+			return function( elem ) {
+				return Sizzle( selector, elem ).length > 0;
+			};
+		} ),
+
+		"contains": markFunction( function( text ) {
+			text = text.replace( runescape, funescape );
+			return function( elem ) {
+				return ( elem.textContent || getText( elem ) ).indexOf( text ) > -1;
+			};
+		} ),
+
+		// "Whether an element is represented by a :lang() selector
+		// is based solely on the element's language value
+		// being equal to the identifier C,
+		// or beginning with the identifier C immediately followed by "-".
+		// The matching of C against the element's language value is performed case-insensitively.
+		// The identifier C does not have to be a valid language name."
+		// http://www.w3.org/TR/selectors/#lang-pseudo
+		"lang": markFunction( function( lang ) {
+
+			// lang value must be a valid identifier
+			if ( !ridentifier.test( lang || "" ) ) {
+				Sizzle.error( "unsupported lang: " + lang );
+			}
+			lang = lang.replace( runescape, funescape ).toLowerCase();
+			return function( elem ) {
+				var elemLang;
+				do {
+					if ( ( elemLang = documentIsHTML ?
+						elem.lang :
+						elem.getAttribute( "xml:lang" ) || elem.getAttribute( "lang" ) ) ) {
+
+						elemLang = elemLang.toLowerCase();
+						return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
+					}
+				} while ( ( elem = elem.parentNode ) && elem.nodeType === 1 );
+				return false;
+			};
+		} ),
+
+		// Miscellaneous
+		"target": function( elem ) {
+			var hash = window.location && window.location.hash;
+			return hash && hash.slice( 1 ) === elem.id;
+		},
+
+		"root": function( elem ) {
+			return elem === docElem;
+		},
+
+		"focus": function( elem ) {
+			return elem === document.activeElement &&
+				( !document.hasFocus || document.hasFocus() ) &&
+				!!( elem.type || elem.href || ~elem.tabIndex );
+		},
+
+		// Boolean properties
+		"enabled": createDisabledPseudo( false ),
+		"disabled": createDisabledPseudo( true ),
+
+		"checked": function( elem ) {
+
+			// In CSS3, :checked should return both checked and selected elements
+			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
+			var nodeName = elem.nodeName.toLowerCase();
+			return ( nodeName === "input" && !!elem.checked ) ||
+				( nodeName === "option" && !!elem.selected );
+		},
+
+		"selected": function( elem ) {
+
+			// Accessing this property makes selected-by-default
+			// options in Safari work properly
+			if ( elem.parentNode ) {
+				// eslint-disable-next-line no-unused-expressions
+				elem.parentNode.selectedIndex;
+			}
+
+			return elem.selected === true;
+		},
+
+		// Contents
+		"empty": function( elem ) {
+
+			// http://www.w3.org/TR/selectors/#empty-pseudo
+			// :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
+			//   but not by others (comment: 8; processing instruction: 7; etc.)
+			// nodeType < 6 works because attributes (2) do not appear as children
+			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
+				if ( elem.nodeType < 6 ) {
+					return false;
+				}
+			}
+			return true;
+		},
+
+		"parent": function( elem ) {
+			return !Expr.pseudos[ "empty" ]( elem );
+		},
+
+		// Element/input types
+		"header": function( elem ) {
+			return rheader.test( elem.nodeName );
+		},
+
+		"input": function( elem ) {
+			return rinputs.test( elem.nodeName );
+		},
+
+		"button": function( elem ) {
+			var name = elem.nodeName.toLowerCase();
+			return name === "input" && elem.type === "button" || name === "button";
+		},
+
+		"text": function( elem ) {
+			var attr;
+			return elem.nodeName.toLowerCase() === "input" &&
+				elem.type === "text" &&
+
+				// Support: IE<8
+				// New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
+				( ( attr = elem.getAttribute( "type" ) ) == null ||
+					attr.toLowerCase() === "text" );
+		},
+
+		// Position-in-collection
+		"first": createPositionalPseudo( function() {
+			return [ 0 ];
+		} ),
+
+		"last": createPositionalPseudo( function( _matchIndexes, length ) {
+			return [ length - 1 ];
+		} ),
+
+		"eq": createPositionalPseudo( function( _matchIndexes, length, argument ) {
+			return [ argument < 0 ? argument + length : argument ];
+		} ),
+
+		"even": createPositionalPseudo( function( matchIndexes, length ) {
+			var i = 0;
+			for ( ; i < length; i += 2 ) {
+				matchIndexes.push( i );
+			}
+			return matchIndexes;
+		} ),
+
+		"odd": createPositionalPseudo( function( matchIndexes, length ) {
+			var i = 1;
+			for ( ; i < length; i += 2 ) {
+				matchIndexes.push( i );
+			}
+			return matchIndexes;
+		} ),
+
+		"lt": createPositionalPseudo( function( matchIndexes, length, argument ) {
+			var i = argument < 0 ?
+				argument + length :
+				argument > length ?
+					length :
+					argument;
+			for ( ; --i >= 0; ) {
+				matchIndexes.push( i );
+			}
+			return matchIndexes;
+		} ),
+
+		"gt": createPositionalPseudo( function( matchIndexes, length, argument ) {
+			var i = argument < 0 ? argument + length : argument;
+			for ( ; ++i < length; ) {
+				matchIndexes.push( i );
+			}
+			return matchIndexes;
+		} )
+	}
+};
+
+Expr.pseudos[ "nth" ] = Expr.pseudos[ "eq" ];
+
+// Add button/input type pseudos
+for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
+	Expr.pseudos[ i ] = createInputPseudo( i );
+}
+for ( i in { submit: true, reset: true } ) {
+	Expr.pseudos[ i ] = createButtonPseudo( i );
+}
+
+// Easy API for creating new setFilters
+function setFilters() {}
+setFilters.prototype = Expr.filters = Expr.pseudos;
+Expr.setFilters = new setFilters();
+
+tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
+	var matched, match, tokens, type,
+		soFar, groups, preFilters,
+		cached = tokenCache[ selector + " " ];
+
+	if ( cached ) {
+		return parseOnly ? 0 : cached.slice( 0 );
+	}
+
+	soFar = selector;
+	groups = [];
+	preFilters = Expr.preFilter;
+
+	while ( soFar ) {
+
+		// Comma and first run
+		if ( !matched || ( match = rcomma.exec( soFar ) ) ) {
+			if ( match ) {
+
+				// Don't consume trailing commas as valid
+				soFar = soFar.slice( match[ 0 ].length ) || soFar;
+			}
+			groups.push( ( tokens = [] ) );
+		}
+
+		matched = false;
+
+		// Combinators
+		if ( ( match = rcombinators.exec( soFar ) ) ) {
+			matched = match.shift();
+			tokens.push( {
+				value: matched,
+
+				// Cast descendant combinators to space
+				type: match[ 0 ].replace( rtrim, " " )
+			} );
+			soFar = soFar.slice( matched.length );
+		}
+
+		// Filters
+		for ( type in Expr.filter ) {
+			if ( ( match = matchExpr[ type ].exec( soFar ) ) && ( !preFilters[ type ] ||
+				( match = preFilters[ type ]( match ) ) ) ) {
+				matched = match.shift();
+				tokens.push( {
+					value: matched,
+					type: type,
+					matches: match
+				} );
+				soFar = soFar.slice( matched.length );
+			}
+		}
+
+		if ( !matched ) {
+			break;
+		}
+	}
+
+	// Return the length of the invalid excess
+	// if we're just parsing
+	// Otherwise, throw an error or return tokens
+	return parseOnly ?
+		soFar.length :
+		soFar ?
+			Sizzle.error( selector ) :
+
+			// Cache the tokens
+			tokenCache( selector, groups ).slice( 0 );
+};
+
+function toSelector( tokens ) {
+	var i = 0,
+		len = tokens.length,
+		selector = "";
+	for ( ; i < len; i++ ) {
+		selector += tokens[ i ].value;
+	}
+	return selector;
+}
+
+function addCombinator( matcher, combinator, base ) {
+	var dir = combinator.dir,
+		skip = combinator.next,
+		key = skip || dir,
+		checkNonElements = base && key === "parentNode",
+		doneName = done++;
+
+	return combinator.first ?
+
+		// Check against closest ancestor/preceding element
+		function( elem, context, xml ) {
+			while ( ( elem = elem[ dir ] ) ) {
+				if ( elem.nodeType === 1 || checkNonElements ) {
+					return matcher( elem, context, xml );
+				}
+			}
+			return false;
+		} :
+
+		// Check against all ancestor/preceding elements
+		function( elem, context, xml ) {
+			var oldCache, uniqueCache, outerCache,
+				newCache = [ dirruns, doneName ];
+
+			// We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
+			if ( xml ) {
+				while ( ( elem = elem[ dir ] ) ) {
+					if ( elem.nodeType === 1 || checkNonElements ) {
+						if ( matcher( elem, context, xml ) ) {
+							return true;
+						}
+					}
+				}
+			} else {
+				while ( ( elem = elem[ dir ] ) ) {
+					if ( elem.nodeType === 1 || checkNonElements ) {
+						outerCache = elem[ expando ] || ( elem[ expando ] = {} );
+
+						// Support: IE <9 only
+						// Defend against cloned attroperties (jQuery gh-1709)
+						uniqueCache = outerCache[ elem.uniqueID ] ||
+							( outerCache[ elem.uniqueID ] = {} );
+
+						if ( skip && skip === elem.nodeName.toLowerCase() ) {
+							elem = elem[ dir ] || elem;
+						} else if ( ( oldCache = uniqueCache[ key ] ) &&
+							oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {
+
+							// Assign to newCache so results back-propagate to previous elements
+							return ( newCache[ 2 ] = oldCache[ 2 ] );
+						} else {
+
+							// Reuse newcache so results back-propagate to previous elements
+							uniqueCache[ key ] = newCache;
+
+							// A match means we're done; a fail means we have to keep checking
+							if ( ( newCache[ 2 ] = matcher( elem, context, xml ) ) ) {
+								return true;
+							}
+						}
+					}
+				}
+			}
+			return false;
+		};
+}
+
+function elementMatcher( matchers ) {
+	return matchers.length > 1 ?
+		function( elem, context, xml ) {
+			var i = matchers.length;
+			while ( i-- ) {
+				if ( !matchers[ i ]( elem, context, xml ) ) {
+					return false;
+				}
+			}
+			return true;
+		} :
+		matchers[ 0 ];
+}
+
+function multipleContexts( selector, contexts, results ) {
+	var i = 0,
+		len = contexts.length;
+	for ( ; i < len; i++ ) {
+		Sizzle( selector, contexts[ i ], results );
+	}
+	return results;
+}
+
+function condense( unmatched, map, filter, context, xml ) {
+	var elem,
+		newUnmatched = [],
+		i = 0,
+		len = unmatched.length,
+		mapped = map != null;
+
+	for ( ; i < len; i++ ) {
+		if ( ( elem = unmatched[ i ] ) ) {
+			if ( !filter || filter( elem, context, xml ) ) {
+				newUnmatched.push( elem );
+				if ( mapped ) {
+					map.push( i );
+				}
+			}
+		}
+	}
+
+	return newUnmatched;
+}
+
+function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
+	if ( postFilter && !postFilter[ expando ] ) {
+		postFilter = setMatcher( postFilter );
+	}
+	if ( postFinder && !postFinder[ expando ] ) {
+		postFinder = setMatcher( postFinder, postSelector );
+	}
+	return markFunction( function( seed, results, context, xml ) {
+		var temp, i, elem,
+			preMap = [],
+			postMap = [],
+			preexisting = results.length,
+
+			// Get initial elements from seed or context
+			elems = seed || multipleContexts(
+				selector || "*",
+				context.nodeType ? [ context ] : context,
+				[]
+			),
+
+			// Prefilter to get matcher input, preserving a map for seed-results synchronization
+			matcherIn = preFilter && ( seed || !selector ) ?
+				condense( elems, preMap, preFilter, context, xml ) :
+				elems,
+
+			matcherOut = matcher ?
+
+				// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
+				postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
+
+					// ...intermediate processing is necessary
+					[] :
+
+					// ...otherwise use results directly
+					results :
+				matcherIn;
+
+		// Find primary matches
+		if ( matcher ) {
+			matcher( matcherIn, matcherOut, context, xml );
+		}
+
+		// Apply postFilter
+		if ( postFilter ) {
+			temp = condense( matcherOut, postMap );
+			postFilter( temp, [], context, xml );
+
+			// Un-match failing elements by moving them back to matcherIn
+			i = temp.length;
+			while ( i-- ) {
+				if ( ( elem = temp[ i ] ) ) {
+					matcherOut[ postMap[ i ] ] = !( matcherIn[ postMap[ i ] ] = elem );
+				}
+			}
+		}
+
+		if ( seed ) {
+			if ( postFinder || preFilter ) {
+				if ( postFinder ) {
+
+					// Get the final matcherOut by condensing this intermediate into postFinder contexts
+					temp = [];
+					i = matcherOut.length;
+					while ( i-- ) {
+						if ( ( elem = matcherOut[ i ] ) ) {
+
+							// Restore matcherIn since elem is not yet a final match
+							temp.push( ( matcherIn[ i ] = elem ) );
+						}
+					}
+					postFinder( null, ( matcherOut = [] ), temp, xml );
+				}
+
+				// Move matched elements from seed to results to keep them synchronized
+				i = matcherOut.length;
+				while ( i-- ) {
+					if ( ( elem = matcherOut[ i ] ) &&
+						( temp = postFinder ? indexOf( seed, elem ) : preMap[ i ] ) > -1 ) {
+
+						seed[ temp ] = !( results[ temp ] = elem );
+					}
+				}
+			}
+
+		// Add elements to results, through postFinder if defined
+		} else {
+			matcherOut = condense(
+				matcherOut === results ?
+					matcherOut.splice( preexisting, matcherOut.length ) :
+					matcherOut
+			);
+			if ( postFinder ) {
+				postFinder( null, results, matcherOut, xml );
+			} else {
+				push.apply( results, matcherOut );
+			}
+		}
+	} );
+}
+
+function matcherFromTokens( tokens ) {
+	var checkContext, matcher, j,
+		len = tokens.length,
+		leadingRelative = Expr.relative[ tokens[ 0 ].type ],
+		implicitRelative = leadingRelative || Expr.relative[ " " ],
+		i = leadingRelative ? 1 : 0,
+
+		// The foundational matcher ensures that elements are reachable from top-level context(s)
+		matchContext = addCombinator( function( elem ) {
+			return elem === checkContext;
+		}, implicitRelative, true ),
+		matchAnyContext = addCombinator( function( elem ) {
+			return indexOf( checkContext, elem ) > -1;
+		}, implicitRelative, true ),
+		matchers = [ function( elem, context, xml ) {
+			var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
+				( checkContext = context ).nodeType ?
+					matchContext( elem, context, xml ) :
+					matchAnyContext( elem, context, xml ) );
+
+			// Avoid hanging onto element (issue #299)
+			checkContext = null;
+			return ret;
+		} ];
+
+	for ( ; i < len; i++ ) {
+		if ( ( matcher = Expr.relative[ tokens[ i ].type ] ) ) {
+			matchers = [ addCombinator( elementMatcher( matchers ), matcher ) ];
+		} else {
+			matcher = Expr.filter[ tokens[ i ].type ].apply( null, tokens[ i ].matches );
+
+			// Return special upon seeing a positional matcher
+			if ( matcher[ expando ] ) {
+
+				// Find the next relative operator (if any) for proper handling
+				j = ++i;
+				for ( ; j < len; j++ ) {
+					if ( Expr.relative[ tokens[ j ].type ] ) {
+						break;
+					}
+				}
+				return setMatcher(
+					i > 1 && elementMatcher( matchers ),
+					i > 1 && toSelector(
+
+					// If the preceding token was a descendant combinator, insert an implicit any-element `*`
+					tokens
+						.slice( 0, i - 1 )
+						.concat( { value: tokens[ i - 2 ].type === " " ? "*" : "" } )
+					).replace( rtrim, "$1" ),
+					matcher,
+					i < j && matcherFromTokens( tokens.slice( i, j ) ),
+					j < len && matcherFromTokens( ( tokens = tokens.slice( j ) ) ),
+					j < len && toSelector( tokens )
+				);
+			}
+			matchers.push( matcher );
+		}
+	}
+
+	return elementMatcher( matchers );
+}
+
+function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
+	var bySet = setMatchers.length > 0,
+		byElement = elementMatchers.length > 0,
+		superMatcher = function( seed, context, xml, results, outermost ) {
+			var elem, j, matcher,
+				matchedCount = 0,
+				i = "0",
+				unmatched = seed && [],
+				setMatched = [],
+				contextBackup = outermostContext,
+
+				// We must always have either seed elements or outermost context
+				elems = seed || byElement && Expr.find[ "TAG" ]( "*", outermost ),
+
+				// Use integer dirruns iff this is the outermost matcher
+				dirrunsUnique = ( dirruns += contextBackup == null ? 1 : Math.random() || 0.1 ),
+				len = elems.length;
+
+			if ( outermost ) {
+
+				// Support: IE 11+, Edge 17 - 18+
+				// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
+				// two documents; shallow comparisons work.
+				// eslint-disable-next-line eqeqeq
+				outermostContext = context == document || context || outermost;
+			}
+
+			// Add elements passing elementMatchers directly to results
+			// Support: IE<9, Safari
+			// Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
+			for ( ; i !== len && ( elem = elems[ i ] ) != null; i++ ) {
+				if ( byElement && elem ) {
+					j = 0;
+
+					// Support: IE 11+, Edge 17 - 18+
+					// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
+					// two documents; shallow comparisons work.
+					// eslint-disable-next-line eqeqeq
+					if ( !context && elem.ownerDocument != document ) {
+						setDocument( elem );
+						xml = !documentIsHTML;
+					}
+					while ( ( matcher = elementMatchers[ j++ ] ) ) {
+						if ( matcher( elem, context || document, xml ) ) {
+							results.push( elem );
+							break;
+						}
+					}
+					if ( outermost ) {
+						dirruns = dirrunsUnique;
+					}
+				}
+
+				// Track unmatched elements for set filters
+				if ( bySet ) {
+
+					// They will have gone through all possible matchers
+					if ( ( elem = !matcher && elem ) ) {
+						matchedCount--;
+					}
+
+					// Lengthen the array for every element, matched or not
+					if ( seed ) {
+						unmatched.push( elem );
+					}
+				}
+			}
+
+			// `i` is now the count of elements visited above, and adding it to `matchedCount`
+			// makes the latter nonnegative.
+			matchedCount += i;
+
+			// Apply set filters to unmatched elements
+			// NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
+			// equals `i`), unless we didn't visit _any_ elements in the above loop because we have
+			// no element matchers and no seed.
+			// Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
+			// case, which will result in a "00" `matchedCount` that differs from `i` but is also
+			// numerically zero.
+			if ( bySet && i !== matchedCount ) {
+				j = 0;
+				while ( ( matcher = setMatchers[ j++ ] ) ) {
+					matcher( unmatched, setMatched, context, xml );
+				}
+
+				if ( seed ) {
+
+					// Reintegrate element matches to eliminate the need for sorting
+					if ( matchedCount > 0 ) {
+						while ( i-- ) {
+							if ( !( unmatched[ i ] || setMatched[ i ] ) ) {
+								setMatched[ i ] = pop.call( results );
+							}
+						}
+					}
+
+					// Discard index placeholder values to get only actual matches
+					setMatched = condense( setMatched );
+				}
+
+				// Add matches to results
+				push.apply( results, setMatched );
+
+				// Seedless set matches succeeding multiple successful matchers stipulate sorting
+				if ( outermost && !seed && setMatched.length > 0 &&
+					( matchedCount + setMatchers.length ) > 1 ) {
+
+					Sizzle.uniqueSort( results );
+				}
+			}
+
+			// Override manipulation of globals by nested matchers
+			if ( outermost ) {
+				dirruns = dirrunsUnique;
+				outermostContext = contextBackup;
+			}
+
+			return unmatched;
+		};
+
+	return bySet ?
+		markFunction( superMatcher ) :
+		superMatcher;
+}
+
+compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
+	var i,
+		setMatchers = [],
+		elementMatchers = [],
+		cached = compilerCache[ selector + " " ];
+
+	if ( !cached ) {
+
+		// Generate a function of recursive functions that can be used to check each element
+		if ( !match ) {
+			match = tokenize( selector );
+		}
+		i = match.length;
+		while ( i-- ) {
+			cached = matcherFromTokens( match[ i ] );
+			if ( cached[ expando ] ) {
+				setMatchers.push( cached );
+			} else {
+				elementMatchers.push( cached );
+			}
+		}
+
+		// Cache the compiled function
+		cached = compilerCache(
+			selector,
+			matcherFromGroupMatchers( elementMatchers, setMatchers )
+		);
+
+		// Save selector and tokenization
+		cached.selector = selector;
+	}
+	return cached;
+};
+
+/**
+ * A low-level selection function that works with Sizzle's compiled
+ *  selector functions
+ * @param {String|Function} selector A selector or a pre-compiled
+ *  selector function built with Sizzle.compile
+ * @param {Element} context
+ * @param {Array} [results]
+ * @param {Array} [seed] A set of elements to match against
+ */
+select = Sizzle.select = function( selector, context, results, seed ) {
+	var i, tokens, token, type, find,
+		compiled = typeof selector === "function" && selector,
+		match = !seed && tokenize( ( selector = compiled.selector || selector ) );
+
+	results = results || [];
+
+	// Try to minimize operations if there is only one selector in the list and no seed
+	// (the latter of which guarantees us context)
+	if ( match.length === 1 ) {
+
+		// Reduce context if the leading compound selector is an ID
+		tokens = match[ 0 ] = match[ 0 ].slice( 0 );
+		if ( tokens.length > 2 && ( token = tokens[ 0 ] ).type === "ID" &&
+			context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[ 1 ].type ] ) {
+
+			context = ( Expr.find[ "ID" ]( token.matches[ 0 ]
+				.replace( runescape, funescape ), context ) || [] )[ 0 ];
+			if ( !context ) {
+				return results;
+
+			// Precompiled matchers will still verify ancestry, so step up a level
+			} else if ( compiled ) {
+				context = context.parentNode;
+			}
+
+			selector = selector.slice( tokens.shift().value.length );
+		}
+
+		// Fetch a seed set for right-to-left matching
+		i = matchExpr[ "needsContext" ].test( selector ) ? 0 : tokens.length;
+		while ( i-- ) {
+			token = tokens[ i ];
+
+			// Abort if we hit a combinator
+			if ( Expr.relative[ ( type = token.type ) ] ) {
+				break;
+			}
+			if ( ( find = Expr.find[ type ] ) ) {
+
+				// Search, expanding context for leading sibling combinators
+				if ( ( seed = find(
+					token.matches[ 0 ].replace( runescape, funescape ),
+					rsibling.test( tokens[ 0 ].type ) && testContext( context.parentNode ) ||
+						context
+				) ) ) {
+
+					// If seed is empty or no tokens remain, we can return early
+					tokens.splice( i, 1 );
+					selector = seed.length && toSelector( tokens );
+					if ( !selector ) {
+						push.apply( results, seed );
+						return results;
+					}
+
+					break;
+				}
+			}
+		}
+	}
+
+	// Compile and execute a filtering function if one is not provided
+	// Provide `match` to avoid retokenization if we modified the selector above
+	( compiled || compile( selector, match ) )(
+		seed,
+		context,
+		!documentIsHTML,
+		results,
+		!context || rsibling.test( selector ) && testContext( context.parentNode ) || context
+	);
+	return results;
+};
+
+// One-time assignments
+
+// Sort stability
+support.sortStable = expando.split( "" ).sort( sortOrder ).join( "" ) === expando;
+
+// Support: Chrome 14-35+
+// Always assume duplicates if they aren't passed to the comparison function
+support.detectDuplicates = !!hasDuplicate;
+
+// Initialize against the default document
+setDocument();
+
+// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
+// Detached nodes confoundingly follow *each other*
+support.sortDetached = assert( function( el ) {
+
+	// Should return 1, but returns 4 (following)
+	return el.compareDocumentPosition( document.createElement( "fieldset" ) ) & 1;
+} );
+
+// Support: IE<8
+// Prevent attribute/property "interpolation"
+// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
+if ( !assert( function( el ) {
+	el.innerHTML = "<a href='#'></a>";
+	return el.firstChild.getAttribute( "href" ) === "#";
+} ) ) {
+	addHandle( "type|href|height|width", function( elem, name, isXML ) {
+		if ( !isXML ) {
+			return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
+		}
+	} );
+}
+
+// Support: IE<9
+// Use defaultValue in place of getAttribute("value")
+if ( !support.attributes || !assert( function( el ) {
+	el.innerHTML = "<input/>";
+	el.firstChild.setAttribute( "value", "" );
+	return el.firstChild.getAttribute( "value" ) === "";
+} ) ) {
+	addHandle( "value", function( elem, _name, isXML ) {
+		if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
+			return elem.defaultValue;
+		}
+	} );
+}
+
+// Support: IE<9
+// Use getAttributeNode to fetch booleans when getAttribute lies
+if ( !assert( function( el ) {
+	return el.getAttribute( "disabled" ) == null;
+} ) ) {
+	addHandle( booleans, function( elem, name, isXML ) {
+		var val;
+		if ( !isXML ) {
+			return elem[ name ] === true ? name.toLowerCase() :
+				( val = elem.getAttributeNode( name ) ) && val.specified ?
+					val.value :
+					null;
+		}
+	} );
+}
+
+return Sizzle;
+
+} )( window );
+
+
+
+jQuery.find = Sizzle;
+jQuery.expr = Sizzle.selectors;
+
+// Deprecated
+jQuery.expr[ ":" ] = jQuery.expr.pseudos;
+jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
+jQuery.text = Sizzle.getText;
+jQuery.isXMLDoc = Sizzle.isXML;
+jQuery.contains = Sizzle.contains;
+jQuery.escapeSelector = Sizzle.escape;
+
+
+
+
+var dir = function( elem, dir, until ) {
+	var matched = [],
+		truncate = until !== undefined;
+
+	while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
+		if ( elem.nodeType === 1 ) {
+			if ( truncate && jQuery( elem ).is( until ) ) {
+				break;
+			}
+			matched.push( elem );
+		}
+	}
+	return matched;
+};
+
+
+var siblings = function( n, elem ) {
+	var matched = [];
+
+	for ( ; n; n = n.nextSibling ) {
+		if ( n.nodeType === 1 && n !== elem ) {
+			matched.push( n );
+		}
+	}
+
+	return matched;
+};
+
+
+var rneedsContext = jQuery.expr.match.needsContext;
+
+
+
+function nodeName( elem, name ) {
+
+	return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
+
+}
+var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i );
+
+
+
+// Implement the identical functionality for filter and not
+function winnow( elements, qualifier, not ) {
+	if ( isFunction( qualifier ) ) {
+		return jQuery.grep( elements, function( elem, i ) {
+			return !!qualifier.call( elem, i, elem ) !== not;
+		} );
+	}
+
+	// Single element
+	if ( qualifier.nodeType ) {
+		return jQuery.grep( elements, function( elem ) {
+			return ( elem === qualifier ) !== not;
+		} );
+	}
+
+	// Arraylike of elements (jQuery, arguments, Array)
+	if ( typeof qualifier !== "string" ) {
+		return jQuery.grep( elements, function( elem ) {
+			return ( indexOf.call( qualifier, elem ) > -1 ) !== not;
+		} );
+	}
+
+	// Filtered directly for both simple and complex selectors
+	return jQuery.filter( qualifier, elements, not );
+}
+
+jQuery.filter = function( expr, elems, not ) {
+	var elem = elems[ 0 ];
+
+	if ( not ) {
+		expr = ":not(" + expr + ")";
+	}
+
+	if ( elems.length === 1 && elem.nodeType === 1 ) {
+		return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [];
+	}
+
+	return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
+		return elem.nodeType === 1;
+	} ) );
+};
+
+jQuery.fn.extend( {
+	find: function( selector ) {
+		var i, ret,
+			len = this.length,
+			self = this;
+
+		if ( typeof selector !== "string" ) {
+			return this.pushStack( jQuery( selector ).filter( function() {
+				for ( i = 0; i < len; i++ ) {
+					if ( jQuery.contains( self[ i ], this ) ) {
+						return true;
+					}
+				}
+			} ) );
+		}
+
+		ret = this.pushStack( [] );
+
+		for ( i = 0; i < len; i++ ) {
+			jQuery.find( selector, self[ i ], ret );
+		}
+
+		return len > 1 ? jQuery.uniqueSort( ret ) : ret;
+	},
+	filter: function( selector ) {
+		return this.pushStack( winnow( this, selector || [], false ) );
+	},
+	not: function( selector ) {
+		return this.pushStack( winnow( this, selector || [], true ) );
+	},
+	is: function( selector ) {
+		return !!winnow(
+			this,
+
+			// If this is a positional/relative selector, check membership in the returned set
+			// so $("p:first").is("p:last") won't return true for a doc with two "p".
+			typeof selector === "string" && rneedsContext.test( selector ) ?
+				jQuery( selector ) :
+				selector || [],
+			false
+		).length;
+	}
+} );
+
+
+// Initialize a jQuery object
+
+
+// A central reference to the root jQuery(document)
+var rootjQuery,
+
+	// A simple way to check for HTML strings
+	// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
+	// Strict HTML recognition (#11290: must start with <)
+	// Shortcut simple #id case for speed
+	rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/,
+
+	init = jQuery.fn.init = function( selector, context, root ) {
+		var match, elem;
+
+		// HANDLE: $(""), $(null), $(undefined), $(false)
+		if ( !selector ) {
+			return this;
+		}
+
+		// Method init() accepts an alternate rootjQuery
+		// so migrate can support jQuery.sub (gh-2101)
+		root = root || rootjQuery;
+
+		// Handle HTML strings
+		if ( typeof selector === "string" ) {
+			if ( selector[ 0 ] === "<" &&
+				selector[ selector.length - 1 ] === ">" &&
+				selector.length >= 3 ) {
+
+				// Assume that strings that start and end with <> are HTML and skip the regex check
+				match = [ null, selector, null ];
+
+			} else {
+				match = rquickExpr.exec( selector );
+			}
+
+			// Match html or make sure no context is specified for #id
+			if ( match && ( match[ 1 ] || !context ) ) {
+
+				// HANDLE: $(html) -> $(array)
+				if ( match[ 1 ] ) {
+					context = context instanceof jQuery ? context[ 0 ] : context;
+
+					// Option to run scripts is true for back-compat
+					// Intentionally let the error be thrown if parseHTML is not present
+					jQuery.merge( this, jQuery.parseHTML(
+						match[ 1 ],
+						context && context.nodeType ? context.ownerDocument || context : document,
+						true
+					) );
+
+					// HANDLE: $(html, props)
+					if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
+						for ( match in context ) {
+
+							// Properties of context are called as methods if possible
+							if ( isFunction( this[ match ] ) ) {
+								this[ match ]( context[ match ] );
+
+							// ...and otherwise set as attributes
+							} else {
+								this.attr( match, context[ match ] );
+							}
+						}
+					}
+
+					return this;
+
+				// HANDLE: $(#id)
+				} else {
+					elem = document.getElementById( match[ 2 ] );
+
+					if ( elem ) {
+
+						// Inject the element directly into the jQuery object
+						this[ 0 ] = elem;
+						this.length = 1;
+					}
+					return this;
+				}
+
+			// HANDLE: $(expr, $(...))
+			} else if ( !context || context.jquery ) {
+				return ( context || root ).find( selector );
+
+			// HANDLE: $(expr, context)
+			// (which is just equivalent to: $(context).find(expr)
+			} else {
+				return this.constructor( context ).find( selector );
+			}
+
+		// HANDLE: $(DOMElement)
+		} else if ( selector.nodeType ) {
+			this[ 0 ] = selector;
+			this.length = 1;
+			return this;
+
+		// HANDLE: $(function)
+		// Shortcut for document ready
+		} else if ( isFunction( selector ) ) {
+			return root.ready !== undefined ?
+				root.ready( selector ) :
+
+				// Execute immediately if ready is not present
+				selector( jQuery );
+		}
+
+		return jQuery.makeArray( selector, this );
+	};
+
+// Give the init function the jQuery prototype for later instantiation
+init.prototype = jQuery.fn;
+
+// Initialize central reference
+rootjQuery = jQuery( document );
+
+
+var rparentsprev = /^(?:parents|prev(?:Until|All))/,
+
+	// Methods guaranteed to produce a unique set when starting from a unique set
+	guaranteedUnique = {
+		children: true,
+		contents: true,
+		next: true,
+		prev: true
+	};
+
+jQuery.fn.extend( {
+	has: function( target ) {
+		var targets = jQuery( target, this ),
+			l = targets.length;
+
+		return this.filter( function() {
+			var i = 0;
+			for ( ; i < l; i++ ) {
+				if ( jQuery.contains( this, targets[ i ] ) ) {
+					return true;
+				}
+			}
+		} );
+	},
+
+	closest: function( selectors, context ) {
+		var cur,
+			i = 0,
+			l = this.length,
+			matched = [],
+			targets = typeof selectors !== "string" && jQuery( selectors );
+
+		// Positional selectors never match, since there's no _selection_ context
+		if ( !rneedsContext.test( selectors ) ) {
+			for ( ; i < l; i++ ) {
+				for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {
+
+					// Always skip document fragments
+					if ( cur.nodeType < 11 && ( targets ?
+						targets.index( cur ) > -1 :
+
+						// Don't pass non-elements to Sizzle
+						cur.nodeType === 1 &&
+							jQuery.find.matchesSelector( cur, selectors ) ) ) {
+
+						matched.push( cur );
+						break;
+					}
+				}
+			}
+		}
+
+		return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );
+	},
+
+	// Determine the position of an element within the set
+	index: function( elem ) {
+
+		// No argument, return index in parent
+		if ( !elem ) {
+			return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
+		}
+
+		// Index in selector
+		if ( typeof elem === "string" ) {
+			return indexOf.call( jQuery( elem ), this[ 0 ] );
+		}
+
+		// Locate the position of the desired element
+		return indexOf.call( this,
+
+			// If it receives a jQuery object, the first element is used
+			elem.jquery ? elem[ 0 ] : elem
+		);
+	},
+
+	add: function( selector, context ) {
+		return this.pushStack(
+			jQuery.uniqueSort(
+				jQuery.merge( this.get(), jQuery( selector, context ) )
+			)
+		);
+	},
+
+	addBack: function( selector ) {
+		return this.add( selector == null ?
+			this.prevObject : this.prevObject.filter( selector )
+		);
+	}
+} );
+
+function sibling( cur, dir ) {
+	while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {}
+	return cur;
+}
+
+jQuery.each( {
+	parent: function( elem ) {
+		var parent = elem.parentNode;
+		return parent && parent.nodeType !== 11 ? parent : null;
+	},
+	parents: function( elem ) {
+		return dir( elem, "parentNode" );
+	},
+	parentsUntil: function( elem, _i, until ) {
+		return dir( elem, "parentNode", until );
+	},
+	next: function( elem ) {
+		return sibling( elem, "nextSibling" );
+	},
+	prev: function( elem ) {
+		return sibling( elem, "previousSibling" );
+	},
+	nextAll: function( elem ) {
+		return dir( elem, "nextSibling" );
+	},
+	prevAll: function( elem ) {
+		return dir( elem, "previousSibling" );
+	},
+	nextUntil: function( elem, _i, until ) {
+		return dir( elem, "nextSibling", until );
+	},
+	prevUntil: function( elem, _i, until ) {
+		return dir( elem, "previousSibling", until );
+	},
+	siblings: function( elem ) {
+		return siblings( ( elem.parentNode || {} ).firstChild, elem );
+	},
+	children: function( elem ) {
+		return siblings( elem.firstChild );
+	},
+	contents: function( elem ) {
+		if ( elem.contentDocument != null &&
+
+			// Support: IE 11+
+			// <object> elements with no `data` attribute has an object
+			// `contentDocument` with a `null` prototype.
+			getProto( elem.contentDocument ) ) {
+
+			return elem.contentDocument;
+		}
+
+		// Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only
+		// Treat the template element as a regular one in browsers that
+		// don't support it.
+		if ( nodeName( elem, "template" ) ) {
+			elem = elem.content || elem;
+		}
+
+		return jQuery.merge( [], elem.childNodes );
+	}
+}, function( name, fn ) {
+	jQuery.fn[ name ] = function( until, selector ) {
+		var matched = jQuery.map( this, fn, until );
+
+		if ( name.slice( -5 ) !== "Until" ) {
+			selector = until;
+		}
+
+		if ( selector && typeof selector === "string" ) {
+			matched = jQuery.filter( selector, matched );
+		}
+
+		if ( this.length > 1 ) {
+
+			// Remove duplicates
+			if ( !guaranteedUnique[ name ] ) {
+				jQuery.uniqueSort( matched );
+			}
+
+			// Reverse order for parents* and prev-derivatives
+			if ( rparentsprev.test( name ) ) {
+				matched.reverse();
+			}
+		}
+
+		return this.pushStack( matched );
+	};
+} );
+var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g );
+
+
+
+// Convert String-formatted options into Object-formatted ones
+function createOptions( options ) {
+	var object = {};
+	jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) {
+		object[ flag ] = true;
+	} );
+	return object;
+}
+
+/*
+ * Create a callback list using the following parameters:
+ *
+ *	options: an optional list of space-separated options that will change how
+ *			the callback list behaves or a more traditional option object
+ *
+ * By default a callback list will act like an event callback list and can be
+ * "fired" multiple times.
+ *
+ * Possible options:
+ *
+ *	once:			will ensure the callback list can only be fired once (like a Deferred)
+ *
+ *	memory:			will keep track of previous values and will call any callback added
+ *					after the list has been fired right away with the latest "memorized"
+ *					values (like a Deferred)
+ *
+ *	unique:			will ensure a callback can only be added once (no duplicate in the list)
+ *
+ *	stopOnFalse:	interrupt callings when a callback returns false
+ *
+ */
+jQuery.Callbacks = function( options ) {
+
+	// Convert options from String-formatted to Object-formatted if needed
+	// (we check in cache first)
+	options = typeof options === "string" ?
+		createOptions( options ) :
+		jQuery.extend( {}, options );
+
+	var // Flag to know if list is currently firing
+		firing,
+
+		// Last fire value for non-forgettable lists
+		memory,
+
+		// Flag to know if list was already fired
+		fired,
+
+		// Flag to prevent firing
+		locked,
+
+		// Actual callback list
+		list = [],
+
+		// Queue of execution data for repeatable lists
+		queue = [],
+
+		// Index of currently firing callback (modified by add/remove as needed)
+		firingIndex = -1,
+
+		// Fire callbacks
+		fire = function() {
+
+			// Enforce single-firing
+			locked = locked || options.once;
+
+			// Execute callbacks for all pending executions,
+			// respecting firingIndex overrides and runtime changes
+			fired = firing = true;
+			for ( ; queue.length; firingIndex = -1 ) {
+				memory = queue.shift();
+				while ( ++firingIndex < list.length ) {
+
+					// Run callback and check for early termination
+					if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
+						options.stopOnFalse ) {
+
+						// Jump to end and forget the data so .add doesn't re-fire
+						firingIndex = list.length;
+						memory = false;
+					}
+				}
+			}
+
+			// Forget the data if we're done with it
+			if ( !options.memory ) {
+				memory = false;
+			}
+
+			firing = false;
+
+			// Clean up if we're done firing for good
+			if ( locked ) {
+
+				// Keep an empty list if we have data for future add calls
+				if ( memory ) {
+					list = [];
+
+				// Otherwise, this object is spent
+				} else {
+					list = "";
+				}
+			}
+		},
+
+		// Actual Callbacks object
+		self = {
+
+			// Add a callback or a collection of callbacks to the list
+			add: function() {
+				if ( list ) {
+
+					// If we have memory from a past run, we should fire after adding
+					if ( memory && !firing ) {
+						firingIndex = list.length - 1;
+						queue.push( memory );
+					}
+
+					( function add( args ) {
+						jQuery.each( args, function( _, arg ) {
+							if ( isFunction( arg ) ) {
+								if ( !options.unique || !self.has( arg ) ) {
+									list.push( arg );
+								}
+							} else if ( arg && arg.length && toType( arg ) !== "string" ) {
+
+								// Inspect recursively
+								add( arg );
+							}
+						} );
+					} )( arguments );
+
+					if ( memory && !firing ) {
+						fire();
+					}
+				}
+				return this;
+			},
+
+			// Remove a callback from the list
+			remove: function() {
+				jQuery.each( arguments, function( _, arg ) {
+					var index;
+					while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
+						list.splice( index, 1 );
+
+						// Handle firing indexes
+						if ( index <= firingIndex ) {
+							firingIndex--;
+						}
+					}
+				} );
+				return this;
+			},
+
+			// Check if a given callback is in the list.
+			// If no argument is given, return whether or not list has callbacks attached.
+			has: function( fn ) {
+				return fn ?
+					jQuery.inArray( fn, list ) > -1 :
+					list.length > 0;
+			},
+
+			// Remove all callbacks from the list
+			empty: function() {
+				if ( list ) {
+					list = [];
+				}
+				return this;
+			},
+
+			// Disable .fire and .add
+			// Abort any current/pending executions
+			// Clear all callbacks and values
+			disable: function() {
+				locked = queue = [];
+				list = memory = "";
+				return this;
+			},
+			disabled: function() {
+				return !list;
+			},
+
+			// Disable .fire
+			// Also disable .add unless we have memory (since it would have no effect)
+			// Abort any pending executions
+			lock: function() {
+				locked = queue = [];
+				if ( !memory && !firing ) {
+					list = memory = "";
+				}
+				return this;
+			},
+			locked: function() {
+				return !!locked;
+			},
+
+			// Call all callbacks with the given context and arguments
+			fireWith: function( context, args ) {
+				if ( !locked ) {
+					args = args || [];
+					args = [ context, args.slice ? args.slice() : args ];
+					queue.push( args );
+					if ( !firing ) {
+						fire();
+					}
+				}
+				return this;
+			},
+
+			// Call all the callbacks with the given arguments
+			fire: function() {
+				self.fireWith( this, arguments );
+				return this;
+			},
+
+			// To know if the callbacks have already been called at least once
+			fired: function() {
+				return !!fired;
+			}
+		};
+
+	return self;
+};
+
+
+function Identity( v ) {
+	return v;
+}
+function Thrower( ex ) {
+	throw ex;
+}
+
+function adoptValue( value, resolve, reject, noValue ) {
+	var method;
+
+	try {
+
+		// Check for promise aspect first to privilege synchronous behavior
+		if ( value && isFunction( ( method = value.promise ) ) ) {
+			method.call( value ).done( resolve ).fail( reject );
+
+		// Other thenables
+		} else if ( value && isFunction( ( method = value.then ) ) ) {
+			method.call( value, resolve, reject );
+
+		// Other non-thenables
+		} else {
+
+			// Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer:
+			// * false: [ value ].slice( 0 ) => resolve( value )
+			// * true: [ value ].slice( 1 ) => resolve()
+			resolve.apply( undefined, [ value ].slice( noValue ) );
+		}
+
+	// For Promises/A+, convert exceptions into rejections
+	// Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in
+	// Deferred#then to conditionally suppress rejection.
+	} catch ( value ) {
+
+		// Support: Android 4.0 only
+		// Strict mode functions invoked without .call/.apply get global-object context
+		reject.apply( undefined, [ value ] );
+	}
+}
+
+jQuery.extend( {
+
+	Deferred: function( func ) {
+		var tuples = [
+
+				// action, add listener, callbacks,
+				// ... .then handlers, argument index, [final state]
+				[ "notify", "progress", jQuery.Callbacks( "memory" ),
+					jQuery.Callbacks( "memory" ), 2 ],
+				[ "resolve", "done", jQuery.Callbacks( "once memory" ),
+					jQuery.Callbacks( "once memory" ), 0, "resolved" ],
+				[ "reject", "fail", jQuery.Callbacks( "once memory" ),
+					jQuery.Callbacks( "once memory" ), 1, "rejected" ]
+			],
+			state = "pending",
+			promise = {
+				state: function() {
+					return state;
+				},
+				always: function() {
+					deferred.done( arguments ).fail( arguments );
+					return this;
+				},
+				"catch": function( fn ) {
+					return promise.then( null, fn );
+				},
+
+				// Keep pipe for back-compat
+				pipe: function( /* fnDone, fnFail, fnProgress */ ) {
+					var fns = arguments;
+
+					return jQuery.Deferred( function( newDefer ) {
+						jQuery.each( tuples, function( _i, tuple ) {
+
+							// Map tuples (progress, done, fail) to arguments (done, fail, progress)
+							var fn = isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ];
+
+							// deferred.progress(function() { bind to newDefer or newDefer.notify })
+							// deferred.done(function() { bind to newDefer or newDefer.resolve })
+							// deferred.fail(function() { bind to newDefer or newDefer.reject })
+							deferred[ tuple[ 1 ] ]( function() {
+								var returned = fn && fn.apply( this, arguments );
+								if ( returned && isFunction( returned.promise ) ) {
+									returned.promise()
+										.progress( newDefer.notify )
+										.done( newDefer.resolve )
+										.fail( newDefer.reject );
+								} else {
+									newDefer[ tuple[ 0 ] + "With" ](
+										this,
+										fn ? [ returned ] : arguments
+									);
+								}
+							} );
+						} );
+						fns = null;
+					} ).promise();
+				},
+				then: function( onFulfilled, onRejected, onProgress ) {
+					var maxDepth = 0;
+					function resolve( depth, deferred, handler, special ) {
+						return function() {
+							var that = this,
+								args = arguments,
+								mightThrow = function() {
+									var returned, then;
+
+									// Support: Promises/A+ section 2.3.3.3.3
+									// https://promisesaplus.com/#point-59
+									// Ignore double-resolution attempts
+									if ( depth < maxDepth ) {
+										return;
+									}
+
+									returned = handler.apply( that, args );
+
+									// Support: Promises/A+ section 2.3.1
+									// https://promisesaplus.com/#point-48
+									if ( returned === deferred.promise() ) {
+										throw new TypeError( "Thenable self-resolution" );
+									}
+
+									// Support: Promises/A+ sections 2.3.3.1, 3.5
+									// https://promisesaplus.com/#point-54
+									// https://promisesaplus.com/#point-75
+									// Retrieve `then` only once
+									then = returned &&
+
+										// Support: Promises/A+ section 2.3.4
+										// https://promisesaplus.com/#point-64
+										// Only check objects and functions for thenability
+										( typeof returned === "object" ||
+											typeof returned === "function" ) &&
+										returned.then;
+
+									// Handle a returned thenable
+									if ( isFunction( then ) ) {
+
+										// Special processors (notify) just wait for resolution
+										if ( special ) {
+											then.call(
+												returned,
+												resolve( maxDepth, deferred, Identity, special ),
+												resolve( maxDepth, deferred, Thrower, special )
+											);
+
+										// Normal processors (resolve) also hook into progress
+										} else {
+
+											// ...and disregard older resolution values
+											maxDepth++;
+
+											then.call(
+												returned,
+												resolve( maxDepth, deferred, Identity, special ),
+												resolve( maxDepth, deferred, Thrower, special ),
+												resolve( maxDepth, deferred, Identity,
+													deferred.notifyWith )
+											);
+										}
+
+									// Handle all other returned values
+									} else {
+
+										// Only substitute handlers pass on context
+										// and multiple values (non-spec behavior)
+										if ( handler !== Identity ) {
+											that = undefined;
+											args = [ returned ];
+										}
+
+										// Process the value(s)
+										// Default process is resolve
+										( special || deferred.resolveWith )( that, args );
+									}
+								},
+
+								// Only normal processors (resolve) catch and reject exceptions
+								process = special ?
+									mightThrow :
+									function() {
+										try {
+											mightThrow();
+										} catch ( e ) {
+
+											if ( jQuery.Deferred.exceptionHook ) {
+												jQuery.Deferred.exceptionHook( e,
+													process.stackTrace );
+											}
+
+											// Support: Promises/A+ section 2.3.3.3.4.1
+											// https://promisesaplus.com/#point-61
+											// Ignore post-resolution exceptions
+											if ( depth + 1 >= maxDepth ) {
+
+												// Only substitute handlers pass on context
+												// and multiple values (non-spec behavior)
+												if ( handler !== Thrower ) {
+													that = undefined;
+													args = [ e ];
+												}
+
+												deferred.rejectWith( that, args );
+											}
+										}
+									};
+
+							// Support: Promises/A+ section 2.3.3.3.1
+							// https://promisesaplus.com/#point-57
+							// Re-resolve promises immediately to dodge false rejection from
+							// subsequent errors
+							if ( depth ) {
+								process();
+							} else {
+
+								// Call an optional hook to record the stack, in case of exception
+								// since it's otherwise lost when execution goes async
+								if ( jQuery.Deferred.getStackHook ) {
+									process.stackTrace = jQuery.Deferred.getStackHook();
+								}
+								window.setTimeout( process );
+							}
+						};
+					}
+
+					return jQuery.Deferred( function( newDefer ) {
+
+						// progress_handlers.add( ... )
+						tuples[ 0 ][ 3 ].add(
+							resolve(
+								0,
+								newDefer,
+								isFunction( onProgress ) ?
+									onProgress :
+									Identity,
+								newDefer.notifyWith
+							)
+						);
+
+						// fulfilled_handlers.add( ... )
+						tuples[ 1 ][ 3 ].add(
+							resolve(
+								0,
+								newDefer,
+								isFunction( onFulfilled ) ?
+									onFulfilled :
+									Identity
+							)
+						);
+
+						// rejected_handlers.add( ... )
+						tuples[ 2 ][ 3 ].add(
+							resolve(
+								0,
+								newDefer,
+								isFunction( onRejected ) ?
+									onRejected :
+									Thrower
+							)
+						);
+					} ).promise();
+				},
+
+				// Get a promise for this deferred
+				// If obj is provided, the promise aspect is added to the object
+				promise: function( obj ) {
+					return obj != null ? jQuery.extend( obj, promise ) : promise;
+				}
+			},
+			deferred = {};
+
+		// Add list-specific methods
+		jQuery.each( tuples, function( i, tuple ) {
+			var list = tuple[ 2 ],
+				stateString = tuple[ 5 ];
+
+			// promise.progress = list.add
+			// promise.done = list.add
+			// promise.fail = list.add
+			promise[ tuple[ 1 ] ] = list.add;
+
+			// Handle state
+			if ( stateString ) {
+				list.add(
+					function() {
+
+						// state = "resolved" (i.e., fulfilled)
+						// state = "rejected"
+						state = stateString;
+					},
+
+					// rejected_callbacks.disable
+					// fulfilled_callbacks.disable
+					tuples[ 3 - i ][ 2 ].disable,
+
+					// rejected_handlers.disable
+					// fulfilled_handlers.disable
+					tuples[ 3 - i ][ 3 ].disable,
+
+					// progress_callbacks.lock
+					tuples[ 0 ][ 2 ].lock,
+
+					// progress_handlers.lock
+					tuples[ 0 ][ 3 ].lock
+				);
+			}
+
+			// progress_handlers.fire
+			// fulfilled_handlers.fire
+			// rejected_handlers.fire
+			list.add( tuple[ 3 ].fire );
+
+			// deferred.notify = function() { deferred.notifyWith(...) }
+			// deferred.resolve = function() { deferred.resolveWith(...) }
+			// deferred.reject = function() { deferred.rejectWith(...) }
+			deferred[ tuple[ 0 ] ] = function() {
+				deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments );
+				return this;
+			};
+
+			// deferred.notifyWith = list.fireWith
+			// deferred.resolveWith = list.fireWith
+			// deferred.rejectWith = list.fireWith
+			deferred[ tuple[ 0 ] + "With" ] = list.fireWith;
+		} );
+
+		// Make the deferred a promise
+		promise.promise( deferred );
+
+		// Call given func if any
+		if ( func ) {
+			func.call( deferred, deferred );
+		}
+
+		// All done!
+		return deferred;
+	},
+
+	// Deferred helper
+	when: function( singleValue ) {
+		var
+
+			// count of uncompleted subordinates
+			remaining = arguments.length,
+
+			// count of unprocessed arguments
+			i = remaining,
+
+			// subordinate fulfillment data
+			resolveContexts = Array( i ),
+			resolveValues = slice.call( arguments ),
+
+			// the primary Deferred
+			primary = jQuery.Deferred(),
+
+			// subordinate callback factory
+			updateFunc = function( i ) {
+				return function( value ) {
+					resolveContexts[ i ] = this;
+					resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
+					if ( !( --remaining ) ) {
+						primary.resolveWith( resolveContexts, resolveValues );
+					}
+				};
+			};
+
+		// Single- and empty arguments are adopted like Promise.resolve
+		if ( remaining <= 1 ) {
+			adoptValue( singleValue, primary.done( updateFunc( i ) ).resolve, primary.reject,
+				!remaining );
+
+			// Use .then() to unwrap secondary thenables (cf. gh-3000)
+			if ( primary.state() === "pending" ||
+				isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) {
+
+				return primary.then();
+			}
+		}
+
+		// Multiple arguments are aggregated like Promise.all array elements
+		while ( i-- ) {
+			adoptValue( resolveValues[ i ], updateFunc( i ), primary.reject );
+		}
+
+		return primary.promise();
+	}
+} );
+
+
+// These usually indicate a programmer mistake during development,
+// warn about them ASAP rather than swallowing them by default.
+var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;
+
+jQuery.Deferred.exceptionHook = function( error, stack ) {
+
+	// Support: IE 8 - 9 only
+	// Console exists when dev tools are open, which can happen at any time
+	if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) {
+		window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack );
+	}
+};
+
+
+
+
+jQuery.readyException = function( error ) {
+	window.setTimeout( function() {
+		throw error;
+	} );
+};
+
+
+
+
+// The deferred used on DOM ready
+var readyList = jQuery.Deferred();
+
+jQuery.fn.ready = function( fn ) {
+
+	readyList
+		.then( fn )
+
+		// Wrap jQuery.readyException in a function so that the lookup
+		// happens at the time of error handling instead of callback
+		// registration.
+		.catch( function( error ) {
+			jQuery.readyException( error );
+		} );
+
+	return this;
+};
+
+jQuery.extend( {
+
+	// Is the DOM ready to be used? Set to true once it occurs.
+	isReady: false,
+
+	// A counter to track how many items to wait for before
+	// the ready event fires. See #6781
+	readyWait: 1,
+
+	// Handle when the DOM is ready
+	ready: function( wait ) {
+
+		// Abort if there are pending holds or we're already ready
+		if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
+			return;
+		}
+
+		// Remember that the DOM is ready
+		jQuery.isReady = true;
+
+		// If a normal DOM Ready event fired, decrement, and wait if need be
+		if ( wait !== true && --jQuery.readyWait > 0 ) {
+			return;
+		}
+
+		// If there are functions bound, to execute
+		readyList.resolveWith( document, [ jQuery ] );
+	}
+} );
+
+jQuery.ready.then = readyList.then;
+
+// The ready event handler and self cleanup method
+function completed() {
+	document.removeEventListener( "DOMContentLoaded", completed );
+	window.removeEventListener( "load", completed );
+	jQuery.ready();
+}
+
+// Catch cases where $(document).ready() is called
+// after the browser event has already occurred.
+// Support: IE <=9 - 10 only
+// Older IE sometimes signals "interactive" too soon
+if ( document.readyState === "complete" ||
+	( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {
+
+	// Handle it asynchronously to allow scripts the opportunity to delay ready
+	window.setTimeout( jQuery.ready );
+
+} else {
+
+	// Use the handy event callback
+	document.addEventListener( "DOMContentLoaded", completed );
+
+	// A fallback to window.onload, that will always work
+	window.addEventListener( "load", completed );
+}
+
+
+
+
+// Multifunctional method to get and set values of a collection
+// The value/s can optionally be executed if it's a function
+var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
+	var i = 0,
+		len = elems.length,
+		bulk = key == null;
+
+	// Sets many values
+	if ( toType( key ) === "object" ) {
+		chainable = true;
+		for ( i in key ) {
+			access( elems, fn, i, key[ i ], true, emptyGet, raw );
+		}
+
+	// Sets one value
+	} else if ( value !== undefined ) {
+		chainable = true;
+
+		if ( !isFunction( value ) ) {
+			raw = true;
+		}
+
+		if ( bulk ) {
+
+			// Bulk operations run against the entire set
+			if ( raw ) {
+				fn.call( elems, value );
+				fn = null;
+
+			// ...except when executing function values
+			} else {
+				bulk = fn;
+				fn = function( elem, _key, value ) {
+					return bulk.call( jQuery( elem ), value );
+				};
+			}
+		}
+
+		if ( fn ) {
+			for ( ; i < len; i++ ) {
+				fn(
+					elems[ i ], key, raw ?
+						value :
+						value.call( elems[ i ], i, fn( elems[ i ], key ) )
+				);
+			}
+		}
+	}
+
+	if ( chainable ) {
+		return elems;
+	}
+
+	// Gets
+	if ( bulk ) {
+		return fn.call( elems );
+	}
+
+	return len ? fn( elems[ 0 ], key ) : emptyGet;
+};
+
+
+// Matches dashed string for camelizing
+var rmsPrefix = /^-ms-/,
+	rdashAlpha = /-([a-z])/g;
+
+// Used by camelCase as callback to replace()
+function fcamelCase( _all, letter ) {
+	return letter.toUpperCase();
+}
+
+// Convert dashed to camelCase; used by the css and data modules
+// Support: IE <=9 - 11, Edge 12 - 15
+// Microsoft forgot to hump their vendor prefix (#9572)
+function camelCase( string ) {
+	return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
+}
+var acceptData = function( owner ) {
+
+	// Accepts only:
+	//  - Node
+	//    - Node.ELEMENT_NODE
+	//    - Node.DOCUMENT_NODE
+	//  - Object
+	//    - Any
+	return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
+};
+
+
+
+
+function Data() {
+	this.expando = jQuery.expando + Data.uid++;
+}
+
+Data.uid = 1;
+
+Data.prototype = {
+
+	cache: function( owner ) {
+
+		// Check if the owner object already has a cache
+		var value = owner[ this.expando ];
+
+		// If not, create one
+		if ( !value ) {
+			value = {};
+
+			// We can accept data for non-element nodes in modern browsers,
+			// but we should not, see #8335.
+			// Always return an empty object.
+			if ( acceptData( owner ) ) {
+
+				// If it is a node unlikely to be stringify-ed or looped over
+				// use plain assignment
+				if ( owner.nodeType ) {
+					owner[ this.expando ] = value;
+
+				// Otherwise secure it in a non-enumerable property
+				// configurable must be true to allow the property to be
+				// deleted when data is removed
+				} else {
+					Object.defineProperty( owner, this.expando, {
+						value: value,
+						configurable: true
+					} );
+				}
+			}
+		}
+
+		return value;
+	},
+	set: function( owner, data, value ) {
+		var prop,
+			cache = this.cache( owner );
+
+		// Handle: [ owner, key, value ] args
+		// Always use camelCase key (gh-2257)
+		if ( typeof data === "string" ) {
+			cache[ camelCase( data ) ] = value;
+
+		// Handle: [ owner, { properties } ] args
+		} else {
+
+			// Copy the properties one-by-one to the cache object
+			for ( prop in data ) {
+				cache[ camelCase( prop ) ] = data[ prop ];
+			}
+		}
+		return cache;
+	},
+	get: function( owner, key ) {
+		return key === undefined ?
+			this.cache( owner ) :
+
+			// Always use camelCase key (gh-2257)
+			owner[ this.expando ] && owner[ this.expando ][ camelCase( key ) ];
+	},
+	access: function( owner, key, value ) {
+
+		// In cases where either:
+		//
+		//   1. No key was specified
+		//   2. A string key was specified, but no value provided
+		//
+		// Take the "read" path and allow the get method to determine
+		// which value to return, respectively either:
+		//
+		//   1. The entire cache object
+		//   2. The data stored at the key
+		//
+		if ( key === undefined ||
+				( ( key && typeof key === "string" ) && value === undefined ) ) {
+
+			return this.get( owner, key );
+		}
+
+		// When the key is not a string, or both a key and value
+		// are specified, set or extend (existing objects) with either:
+		//
+		//   1. An object of properties
+		//   2. A key and value
+		//
+		this.set( owner, key, value );
+
+		// Since the "set" path can have two possible entry points
+		// return the expected data based on which path was taken[*]
+		return value !== undefined ? value : key;
+	},
+	remove: function( owner, key ) {
+		var i,
+			cache = owner[ this.expando ];
+
+		if ( cache === undefined ) {
+			return;
+		}
+
+		if ( key !== undefined ) {
+
+			// Support array or space separated string of keys
+			if ( Array.isArray( key ) ) {
+
+				// If key is an array of keys...
+				// We always set camelCase keys, so remove that.
+				key = key.map( camelCase );
+			} else {
+				key = camelCase( key );
+
+				// If a key with the spaces exists, use it.
+				// Otherwise, create an array by matching non-whitespace
+				key = key in cache ?
+					[ key ] :
+					( key.match( rnothtmlwhite ) || [] );
+			}
+
+			i = key.length;
+
+			while ( i-- ) {
+				delete cache[ key[ i ] ];
+			}
+		}
+
+		// Remove the expando if there's no more data
+		if ( key === undefined || jQuery.isEmptyObject( cache ) ) {
+
+			// Support: Chrome <=35 - 45
+			// Webkit & Blink performance suffers when deleting properties
+			// from DOM nodes, so set to undefined instead
+			// https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)
+			if ( owner.nodeType ) {
+				owner[ this.expando ] = undefined;
+			} else {
+				delete owner[ this.expando ];
+			}
+		}
+	},
+	hasData: function( owner ) {
+		var cache = owner[ this.expando ];
+		return cache !== undefined && !jQuery.isEmptyObject( cache );
+	}
+};
+var dataPriv = new Data();
+
+var dataUser = new Data();
+
+
+
+//	Implementation Summary
+//
+//	1. Enforce API surface and semantic compatibility with 1.9.x branch
+//	2. Improve the module's maintainability by reducing the storage
+//		paths to a single mechanism.
+//	3. Use the same single mechanism to support "private" and "user" data.
+//	4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
+//	5. Avoid exposing implementation details on user objects (eg. expando properties)
+//	6. Provide a clear path for implementation upgrade to WeakMap in 2014
+
+var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
+	rmultiDash = /[A-Z]/g;
+
+function getData( data ) {
+	if ( data === "true" ) {
+		return true;
+	}
+
+	if ( data === "false" ) {
+		return false;
+	}
+
+	if ( data === "null" ) {
+		return null;
+	}
+
+	// Only convert to a number if it doesn't change the string
+	if ( data === +data + "" ) {
+		return +data;
+	}
+
+	if ( rbrace.test( data ) ) {
+		return JSON.parse( data );
+	}
+
+	return data;
+}
+
+function dataAttr( elem, key, data ) {
+	var name;
+
+	// If nothing was found internally, try to fetch any
+	// data from the HTML5 data-* attribute
+	if ( data === undefined && elem.nodeType === 1 ) {
+		name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase();
+		data = elem.getAttribute( name );
+
+		if ( typeof data === "string" ) {
+			try {
+				data = getData( data );
+			} catch ( e ) {}
+
+			// Make sure we set the data so it isn't changed later
+			dataUser.set( elem, key, data );
+		} else {
+			data = undefined;
+		}
+	}
+	return data;
+}
+
+jQuery.extend( {
+	hasData: function( elem ) {
+		return dataUser.hasData( elem ) || dataPriv.hasData( elem );
+	},
+
+	data: function( elem, name, data ) {
+		return dataUser.access( elem, name, data );
+	},
+
+	removeData: function( elem, name ) {
+		dataUser.remove( elem, name );
+	},
+
+	// TODO: Now that all calls to _data and _removeData have been replaced
+	// with direct calls to dataPriv methods, these can be deprecated.
+	_data: function( elem, name, data ) {
+		return dataPriv.access( elem, name, data );
+	},
+
+	_removeData: function( elem, name ) {
+		dataPriv.remove( elem, name );
+	}
+} );
+
+jQuery.fn.extend( {
+	data: function( key, value ) {
+		var i, name, data,
+			elem = this[ 0 ],
+			attrs = elem && elem.attributes;
+
+		// Gets all values
+		if ( key === undefined ) {
+			if ( this.length ) {
+				data = dataUser.get( elem );
+
+				if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {
+					i = attrs.length;
+					while ( i-- ) {
+
+						// Support: IE 11 only
+						// The attrs elements can be null (#14894)
+						if ( attrs[ i ] ) {
+							name = attrs[ i ].name;
+							if ( name.indexOf( "data-" ) === 0 ) {
+								name = camelCase( name.slice( 5 ) );
+								dataAttr( elem, name, data[ name ] );
+							}
+						}
+					}
+					dataPriv.set( elem, "hasDataAttrs", true );
+				}
+			}
+
+			return data;
+		}
+
+		// Sets multiple values
+		if ( typeof key === "object" ) {
+			return this.each( function() {
+				dataUser.set( this, key );
+			} );
+		}
+
+		return access( this, function( value ) {
+			var data;
+
+			// The calling jQuery object (element matches) is not empty
+			// (and therefore has an element appears at this[ 0 ]) and the
+			// `value` parameter was not undefined. An empty jQuery object
+			// will result in `undefined` for elem = this[ 0 ] which will
+			// throw an exception if an attempt to read a data cache is made.
+			if ( elem && value === undefined ) {
+
+				// Attempt to get data from the cache
+				// The key will always be camelCased in Data
+				data = dataUser.get( elem, key );
+				if ( data !== undefined ) {
+					return data;
+				}
+
+				// Attempt to "discover" the data in
+				// HTML5 custom data-* attrs
+				data = dataAttr( elem, key );
+				if ( data !== undefined ) {
+					return data;
+				}
+
+				// We tried really hard, but the data doesn't exist.
+				return;
+			}
+
+			// Set the data...
+			this.each( function() {
+
+				// We always store the camelCased key
+				dataUser.set( this, key, value );
+			} );
+		}, null, value, arguments.length > 1, null, true );
+	},
+
+	removeData: function( key ) {
+		return this.each( function() {
+			dataUser.remove( this, key );
+		} );
+	}
+} );
+
+
+jQuery.extend( {
+	queue: function( elem, type, data ) {
+		var queue;
+
+		if ( elem ) {
+			type = ( type || "fx" ) + "queue";
+			queue = dataPriv.get( elem, type );
+
+			// Speed up dequeue by getting out quickly if this is just a lookup
+			if ( data ) {
+				if ( !queue || Array.isArray( data ) ) {
+					queue = dataPriv.access( elem, type, jQuery.makeArray( data ) );
+				} else {
+					queue.push( data );
+				}
+			}
+			return queue || [];
+		}
+	},
+
+	dequeue: function( elem, type ) {
+		type = type || "fx";
+
+		var queue = jQuery.queue( elem, type ),
+			startLength = queue.length,
+			fn = queue.shift(),
+			hooks = jQuery._queueHooks( elem, type ),
+			next = function() {
+				jQuery.dequeue( elem, type );
+			};
+
+		// If the fx queue is dequeued, always remove the progress sentinel
+		if ( fn === "inprogress" ) {
+			fn = queue.shift();
+			startLength--;
+		}
+
+		if ( fn ) {
+
+			// Add a progress sentinel to prevent the fx queue from being
+			// automatically dequeued
+			if ( type === "fx" ) {
+				queue.unshift( "inprogress" );
+			}
+
+			// Clear up the last queue stop function
+			delete hooks.stop;
+			fn.call( elem, next, hooks );
+		}
+
+		if ( !startLength && hooks ) {
+			hooks.empty.fire();
+		}
+	},
+
+	// Not public - generate a queueHooks object, or return the current one
+	_queueHooks: function( elem, type ) {
+		var key = type + "queueHooks";
+		return dataPriv.get( elem, key ) || dataPriv.access( elem, key, {
+			empty: jQuery.Callbacks( "once memory" ).add( function() {
+				dataPriv.remove( elem, [ type + "queue", key ] );
+			} )
+		} );
+	}
+} );
+
+jQuery.fn.extend( {
+	queue: function( type, data ) {
+		var setter = 2;
+
+		if ( typeof type !== "string" ) {
+			data = type;
+			type = "fx";
+			setter--;
+		}
+
+		if ( arguments.length < setter ) {
+			return jQuery.queue( this[ 0 ], type );
+		}
+
+		return data === undefined ?
+			this :
+			this.each( function() {
+				var queue = jQuery.queue( this, type, data );
+
+				// Ensure a hooks for this queue
+				jQuery._queueHooks( this, type );
+
+				if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
+					jQuery.dequeue( this, type );
+				}
+			} );
+	},
+	dequeue: function( type ) {
+		return this.each( function() {
+			jQuery.dequeue( this, type );
+		} );
+	},
+	clearQueue: function( type ) {
+		return this.queue( type || "fx", [] );
+	},
+
+	// Get a promise resolved when queues of a certain type
+	// are emptied (fx is the type by default)
+	promise: function( type, obj ) {
+		var tmp,
+			count = 1,
+			defer = jQuery.Deferred(),
+			elements = this,
+			i = this.length,
+			resolve = function() {
+				if ( !( --count ) ) {
+					defer.resolveWith( elements, [ elements ] );
+				}
+			};
+
+		if ( typeof type !== "string" ) {
+			obj = type;
+			type = undefined;
+		}
+		type = type || "fx";
+
+		while ( i-- ) {
+			tmp = dataPriv.get( elements[ i ], type + "queueHooks" );
+			if ( tmp && tmp.empty ) {
+				count++;
+				tmp.empty.add( resolve );
+			}
+		}
+		resolve();
+		return defer.promise( obj );
+	}
+} );
+var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source;
+
+var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );
+
+
+var cssExpand = [ "Top", "Right", "Bottom", "Left" ];
+
+var documentElement = document.documentElement;
+
+
+
+	var isAttached = function( elem ) {
+			return jQuery.contains( elem.ownerDocument, elem );
+		},
+		composed = { composed: true };
+
+	// Support: IE 9 - 11+, Edge 12 - 18+, iOS 10.0 - 10.2 only
+	// Check attachment across shadow DOM boundaries when possible (gh-3504)
+	// Support: iOS 10.0-10.2 only
+	// Early iOS 10 versions support `attachShadow` but not `getRootNode`,
+	// leading to errors. We need to check for `getRootNode`.
+	if ( documentElement.getRootNode ) {
+		isAttached = function( elem ) {
+			return jQuery.contains( elem.ownerDocument, elem ) ||
+				elem.getRootNode( composed ) === elem.ownerDocument;
+		};
+	}
+var isHiddenWithinTree = function( elem, el ) {
+
+		// isHiddenWithinTree might be called from jQuery#filter function;
+		// in that case, element will be second argument
+		elem = el || elem;
+
+		// Inline style trumps all
+		return elem.style.display === "none" ||
+			elem.style.display === "" &&
+
+			// Otherwise, check computed style
+			// Support: Firefox <=43 - 45
+			// Disconnected elements can have computed display: none, so first confirm that elem is
+			// in the document.
+			isAttached( elem ) &&
+
+			jQuery.css( elem, "display" ) === "none";
+	};
+
+
+
+function adjustCSS( elem, prop, valueParts, tween ) {
+	var adjusted, scale,
+		maxIterations = 20,
+		currentValue = tween ?
+			function() {
+				return tween.cur();
+			} :
+			function() {
+				return jQuery.css( elem, prop, "" );
+			},
+		initial = currentValue(),
+		unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),
+
+		// Starting value computation is required for potential unit mismatches
+		initialInUnit = elem.nodeType &&
+			( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) &&
+			rcssNum.exec( jQuery.css( elem, prop ) );
+
+	if ( initialInUnit && initialInUnit[ 3 ] !== unit ) {
+
+		// Support: Firefox <=54
+		// Halve the iteration target value to prevent interference from CSS upper bounds (gh-2144)
+		initial = initial / 2;
+
+		// Trust units reported by jQuery.css
+		unit = unit || initialInUnit[ 3 ];
+
+		// Iteratively approximate from a nonzero starting point
+		initialInUnit = +initial || 1;
+
+		while ( maxIterations-- ) {
+
+			// Evaluate and update our best guess (doubling guesses that zero out).
+			// Finish if the scale equals or crosses 1 (making the old*new product non-positive).
+			jQuery.style( elem, prop, initialInUnit + unit );
+			if ( ( 1 - scale ) * ( 1 - ( scale = currentValue() / initial || 0.5 ) ) <= 0 ) {
+				maxIterations = 0;
+			}
+			initialInUnit = initialInUnit / scale;
+
+		}
+
+		initialInUnit = initialInUnit * 2;
+		jQuery.style( elem, prop, initialInUnit + unit );
+
+		// Make sure we update the tween properties later on
+		valueParts = valueParts || [];
+	}
+
+	if ( valueParts ) {
+		initialInUnit = +initialInUnit || +initial || 0;
+
+		// Apply relative offset (+=/-=) if specified
+		adjusted = valueParts[ 1 ] ?
+			initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :
+			+valueParts[ 2 ];
+		if ( tween ) {
+			tween.unit = unit;
+			tween.start = initialInUnit;
+			tween.end = adjusted;
+		}
+	}
+	return adjusted;
+}
+
+
+var defaultDisplayMap = {};
+
+function getDefaultDisplay( elem ) {
+	var temp,
+		doc = elem.ownerDocument,
+		nodeName = elem.nodeName,
+		display = defaultDisplayMap[ nodeName ];
+
+	if ( display ) {
+		return display;
+	}
+
+	temp = doc.body.appendChild( doc.createElement( nodeName ) );
+	display = jQuery.css( temp, "display" );
+
+	temp.parentNode.removeChild( temp );
+
+	if ( display === "none" ) {
+		display = "block";
+	}
+	defaultDisplayMap[ nodeName ] = display;
+
+	return display;
+}
+
+function showHide( elements, show ) {
+	var display, elem,
+		values = [],
+		index = 0,
+		length = elements.length;
+
+	// Determine new display value for elements that need to change
+	for ( ; index < length; index++ ) {
+		elem = elements[ index ];
+		if ( !elem.style ) {
+			continue;
+		}
+
+		display = elem.style.display;
+		if ( show ) {
+
+			// Since we force visibility upon cascade-hidden elements, an immediate (and slow)
+			// check is required in this first loop unless we have a nonempty display value (either
+			// inline or about-to-be-restored)
+			if ( display === "none" ) {
+				values[ index ] = dataPriv.get( elem, "display" ) || null;
+				if ( !values[ index ] ) {
+					elem.style.display = "";
+				}
+			}
+			if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) {
+				values[ index ] = getDefaultDisplay( elem );
+			}
+		} else {
+			if ( display !== "none" ) {
+				values[ index ] = "none";
+
+				// Remember what we're overwriting
+				dataPriv.set( elem, "display", display );
+			}
+		}
+	}
+
+	// Set the display of the elements in a second loop to avoid constant reflow
+	for ( index = 0; index < length; index++ ) {
+		if ( values[ index ] != null ) {
+			elements[ index ].style.display = values[ index ];
+		}
+	}
+
+	return elements;
+}
+
+jQuery.fn.extend( {
+	show: function() {
+		return showHide( this, true );
+	},
+	hide: function() {
+		return showHide( this );
+	},
+	toggle: function( state ) {
+		if ( typeof state === "boolean" ) {
+			return state ? this.show() : this.hide();
+		}
+
+		return this.each( function() {
+			if ( isHiddenWithinTree( this ) ) {
+				jQuery( this ).show();
+			} else {
+				jQuery( this ).hide();
+			}
+		} );
+	}
+} );
+var rcheckableType = ( /^(?:checkbox|radio)$/i );
+
+var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]*)/i );
+
+var rscriptType = ( /^$|^module$|\/(?:java|ecma)script/i );
+
+
+
+( function() {
+	var fragment = document.createDocumentFragment(),
+		div = fragment.appendChild( document.createElement( "div" ) ),
+		input = document.createElement( "input" );
+
+	// Support: Android 4.0 - 4.3 only
+	// Check state lost if the name is set (#11217)
+	// Support: Windows Web Apps (WWA)
+	// `name` and `type` must use .setAttribute for WWA (#14901)
+	input.setAttribute( "type", "radio" );
+	input.setAttribute( "checked", "checked" );
+	input.setAttribute( "name", "t" );
+
+	div.appendChild( input );
+
+	// Support: Android <=4.1 only
+	// Older WebKit doesn't clone checked state correctly in fragments
+	support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;
+
+	// Support: IE <=11 only
+	// Make sure textarea (and checkbox) defaultValue is properly cloned
+	div.innerHTML = "<textarea>x</textarea>";
+	support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;
+
+	// Support: IE <=9 only
+	// IE <=9 replaces <option> tags with their contents when inserted outside of
+	// the select element.
+	div.innerHTML = "<option></option>";
+	support.option = !!div.lastChild;
+} )();
+
+
+// We have to close these tags to support XHTML (#13200)
+var wrapMap = {
+
+	// XHTML parsers do not magically insert elements in the
+	// same way that tag soup parsers do. So we cannot shorten
+	// this by omitting <tbody> or other required elements.
+	thead: [ 1, "<table>", "</table>" ],
+	col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
+	tr: [ 2, "<table><tbody>", "</tbody></table>" ],
+	td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
+
+	_default: [ 0, "", "" ]
+};
+
+wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
+wrapMap.th = wrapMap.td;
+
+// Support: IE <=9 only
+if ( !support.option ) {
+	wrapMap.optgroup = wrapMap.option = [ 1, "<select multiple='multiple'>", "</select>" ];
+}
+
+
+function getAll( context, tag ) {
+
+	// Support: IE <=9 - 11 only
+	// Use typeof to avoid zero-argument method invocation on host objects (#15151)
+	var ret;
+
+	if ( typeof context.getElementsByTagName !== "undefined" ) {
+		ret = context.getElementsByTagName( tag || "*" );
+
+	} else if ( typeof context.querySelectorAll !== "undefined" ) {
+		ret = context.querySelectorAll( tag || "*" );
+
+	} else {
+		ret = [];
+	}
+
+	if ( tag === undefined || tag && nodeName( context, tag ) ) {
+		return jQuery.merge( [ context ], ret );
+	}
+
+	return ret;
+}
+
+
+// Mark scripts as having already been evaluated
+function setGlobalEval( elems, refElements ) {
+	var i = 0,
+		l = elems.length;
+
+	for ( ; i < l; i++ ) {
+		dataPriv.set(
+			elems[ i ],
+			"globalEval",
+			!refElements || dataPriv.get( refElements[ i ], "globalEval" )
+		);
+	}
+}
+
+
+var rhtml = /<|&#?\w+;/;
+
+function buildFragment( elems, context, scripts, selection, ignored ) {
+	var elem, tmp, tag, wrap, attached, j,
+		fragment = context.createDocumentFragment(),
+		nodes = [],
+		i = 0,
+		l = elems.length;
+
+	for ( ; i < l; i++ ) {
+		elem = elems[ i ];
+
+		if ( elem || elem === 0 ) {
+
+			// Add nodes directly
+			if ( toType( elem ) === "object" ) {
+
+				// Support: Android <=4.0 only, PhantomJS 1 only
+				// push.apply(_, arraylike) throws on ancient WebKit
+				jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
+
+			// Convert non-html into a text node
+			} else if ( !rhtml.test( elem ) ) {
+				nodes.push( context.createTextNode( elem ) );
+
+			// Convert html into DOM nodes
+			} else {
+				tmp = tmp || fragment.appendChild( context.createElement( "div" ) );
+
+				// Deserialize a standard representation
+				tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
+				wrap = wrapMap[ tag ] || wrapMap._default;
+				tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];
+
+				// Descend through wrappers to the right content
+				j = wrap[ 0 ];
+				while ( j-- ) {
+					tmp = tmp.lastChild;
+				}
+
+				// Support: Android <=4.0 only, PhantomJS 1 only
+				// push.apply(_, arraylike) throws on ancient WebKit
+				jQuery.merge( nodes, tmp.childNodes );
+
+				// Remember the top-level container
+				tmp = fragment.firstChild;
+
+				// Ensure the created nodes are orphaned (#12392)
+				tmp.textContent = "";
+			}
+		}
+	}
+
+	// Remove wrapper from fragment
+	fragment.textContent = "";
+
+	i = 0;
+	while ( ( elem = nodes[ i++ ] ) ) {
+
+		// Skip elements already in the context collection (trac-4087)
+		if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
+			if ( ignored ) {
+				ignored.push( elem );
+			}
+			continue;
+		}
+
+		attached = isAttached( elem );
+
+		// Append to fragment
+		tmp = getAll( fragment.appendChild( elem ), "script" );
+
+		// Preserve script evaluation history
+		if ( attached ) {
+			setGlobalEval( tmp );
+		}
+
+		// Capture executables
+		if ( scripts ) {
+			j = 0;
+			while ( ( elem = tmp[ j++ ] ) ) {
+				if ( rscriptType.test( elem.type || "" ) ) {
+					scripts.push( elem );
+				}
+			}
+		}
+	}
+
+	return fragment;
+}
+
+
+var rtypenamespace = /^([^.]*)(?:\.(.+)|)/;
+
+function returnTrue() {
+	return true;
+}
+
+function returnFalse() {
+	return false;
+}
+
+// Support: IE <=9 - 11+
+// focus() and blur() are asynchronous, except when they are no-op.
+// So expect focus to be synchronous when the element is already active,
+// and blur to be synchronous when the element is not already active.
+// (focus and blur are always synchronous in other supported browsers,
+// this just defines when we can count on it).
+function expectSync( elem, type ) {
+	return ( elem === safeActiveElement() ) === ( type === "focus" );
+}
+
+// Support: IE <=9 only
+// Accessing document.activeElement can throw unexpectedly
+// https://bugs.jquery.com/ticket/13393
+function safeActiveElement() {
+	try {
+		return document.activeElement;
+	} catch ( err ) { }
+}
+
+function on( elem, types, selector, data, fn, one ) {
+	var origFn, type;
+
+	// Types can be a map of types/handlers
+	if ( typeof types === "object" ) {
+
+		// ( types-Object, selector, data )
+		if ( typeof selector !== "string" ) {
+
+			// ( types-Object, data )
+			data = data || selector;
+			selector = undefined;
+		}
+		for ( type in types ) {
+			on( elem, type, selector, data, types[ type ], one );
+		}
+		return elem;
+	}
+
+	if ( data == null && fn == null ) {
+
+		// ( types, fn )
+		fn = selector;
+		data = selector = undefined;
+	} else if ( fn == null ) {
+		if ( typeof selector === "string" ) {
+
+			// ( types, selector, fn )
+			fn = data;
+			data = undefined;
+		} else {
+
+			// ( types, data, fn )
+			fn = data;
+			data = selector;
+			selector = undefined;
+		}
+	}
+	if ( fn === false ) {
+		fn = returnFalse;
+	} else if ( !fn ) {
+		return elem;
+	}
+
+	if ( one === 1 ) {
+		origFn = fn;
+		fn = function( event ) {
+
+			// Can use an empty set, since event contains the info
+			jQuery().off( event );
+			return origFn.apply( this, arguments );
+		};
+
+		// Use same guid so caller can remove using origFn
+		fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
+	}
+	return elem.each( function() {
+		jQuery.event.add( this, types, fn, data, selector );
+	} );
+}
+
+/*
+ * Helper functions for managing events -- not part of the public interface.
+ * Props to Dean Edwards' addEvent library for many of the ideas.
+ */
+jQuery.event = {
+
+	global: {},
+
+	add: function( elem, types, handler, data, selector ) {
+
+		var handleObjIn, eventHandle, tmp,
+			events, t, handleObj,
+			special, handlers, type, namespaces, origType,
+			elemData = dataPriv.get( elem );
+
+		// Only attach events to objects that accept data
+		if ( !acceptData( elem ) ) {
+			return;
+		}
+
+		// Caller can pass in an object of custom data in lieu of the handler
+		if ( handler.handler ) {
+			handleObjIn = handler;
+			handler = handleObjIn.handler;
+			selector = handleObjIn.selector;
+		}
+
+		// Ensure that invalid selectors throw exceptions at attach time
+		// Evaluate against documentElement in case elem is a non-element node (e.g., document)
+		if ( selector ) {
+			jQuery.find.matchesSelector( documentElement, selector );
+		}
+
+		// Make sure that the handler has a unique ID, used to find/remove it later
+		if ( !handler.guid ) {
+			handler.guid = jQuery.guid++;
+		}
+
+		// Init the element's event structure and main handler, if this is the first
+		if ( !( events = elemData.events ) ) {
+			events = elemData.events = Object.create( null );
+		}
+		if ( !( eventHandle = elemData.handle ) ) {
+			eventHandle = elemData.handle = function( e ) {
+
+				// Discard the second event of a jQuery.event.trigger() and
+				// when an event is called after a page has unloaded
+				return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ?
+					jQuery.event.dispatch.apply( elem, arguments ) : undefined;
+			};
+		}
+
+		// Handle multiple events separated by a space
+		types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
+		t = types.length;
+		while ( t-- ) {
+			tmp = rtypenamespace.exec( types[ t ] ) || [];
+			type = origType = tmp[ 1 ];
+			namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
+
+			// There *must* be a type, no attaching namespace-only handlers
+			if ( !type ) {
+				continue;
+			}
+
+			// If event changes its type, use the special event handlers for the changed type
+			special = jQuery.event.special[ type ] || {};
+
+			// If selector defined, determine special event api type, otherwise given type
+			type = ( selector ? special.delegateType : special.bindType ) || type;
+
+			// Update special based on newly reset type
+			special = jQuery.event.special[ type ] || {};
+
+			// handleObj is passed to all event handlers
+			handleObj = jQuery.extend( {
+				type: type,
+				origType: origType,
+				data: data,
+				handler: handler,
+				guid: handler.guid,
+				selector: selector,
+				needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
+				namespace: namespaces.join( "." )
+			}, handleObjIn );
+
+			// Init the event handler queue if we're the first
+			if ( !( handlers = events[ type ] ) ) {
+				handlers = events[ type ] = [];
+				handlers.delegateCount = 0;
+
+				// Only use addEventListener if the special events handler returns false
+				if ( !special.setup ||
+					special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
+
+					if ( elem.addEventListener ) {
+						elem.addEventListener( type, eventHandle );
+					}
+				}
+			}
+
+			if ( special.add ) {
+				special.add.call( elem, handleObj );
+
+				if ( !handleObj.handler.guid ) {
+					handleObj.handler.guid = handler.guid;
+				}
+			}
+
+			// Add to the element's handler list, delegates in front
+			if ( selector ) {
+				handlers.splice( handlers.delegateCount++, 0, handleObj );
+			} else {
+				handlers.push( handleObj );
+			}
+
+			// Keep track of which events have ever been used, for event optimization
+			jQuery.event.global[ type ] = true;
+		}
+
+	},
+
+	// Detach an event or set of events from an element
+	remove: function( elem, types, handler, selector, mappedTypes ) {
+
+		var j, origCount, tmp,
+			events, t, handleObj,
+			special, handlers, type, namespaces, origType,
+			elemData = dataPriv.hasData( elem ) && dataPriv.get( elem );
+
+		if ( !elemData || !( events = elemData.events ) ) {
+			return;
+		}
+
+		// Once for each type.namespace in types; type may be omitted
+		types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
+		t = types.length;
+		while ( t-- ) {
+			tmp = rtypenamespace.exec( types[ t ] ) || [];
+			type = origType = tmp[ 1 ];
+			namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
+
+			// Unbind all events (on this namespace, if provided) for the element
+			if ( !type ) {
+				for ( type in events ) {
+					jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
+				}
+				continue;
+			}
+
+			special = jQuery.event.special[ type ] || {};
+			type = ( selector ? special.delegateType : special.bindType ) || type;
+			handlers = events[ type ] || [];
+			tmp = tmp[ 2 ] &&
+				new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );
+
+			// Remove matching events
+			origCount = j = handlers.length;
+			while ( j-- ) {
+				handleObj = handlers[ j ];
+
+				if ( ( mappedTypes || origType === handleObj.origType ) &&
+					( !handler || handler.guid === handleObj.guid ) &&
+					( !tmp || tmp.test( handleObj.namespace ) ) &&
+					( !selector || selector === handleObj.selector ||
+						selector === "**" && handleObj.selector ) ) {
+					handlers.splice( j, 1 );
+
+					if ( handleObj.selector ) {
+						handlers.delegateCount--;
+					}
+					if ( special.remove ) {
+						special.remove.call( elem, handleObj );
+					}
+				}
+			}
+
+			// Remove generic event handler if we removed something and no more handlers exist
+			// (avoids potential for endless recursion during removal of special event handlers)
+			if ( origCount && !handlers.length ) {
+				if ( !special.teardown ||
+					special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
+
+					jQuery.removeEvent( elem, type, elemData.handle );
+				}
+
+				delete events[ type ];
+			}
+		}
+
+		// Remove data and the expando if it's no longer used
+		if ( jQuery.isEmptyObject( events ) ) {
+			dataPriv.remove( elem, "handle events" );
+		}
+	},
+
+	dispatch: function( nativeEvent ) {
+
+		var i, j, ret, matched, handleObj, handlerQueue,
+			args = new Array( arguments.length ),
+
+			// Make a writable jQuery.Event from the native event object
+			event = jQuery.event.fix( nativeEvent ),
+
+			handlers = (
+				dataPriv.get( this, "events" ) || Object.create( null )
+			)[ event.type ] || [],
+			special = jQuery.event.special[ event.type ] || {};
+
+		// Use the fix-ed jQuery.Event rather than the (read-only) native event
+		args[ 0 ] = event;
+
+		for ( i = 1; i < arguments.length; i++ ) {
+			args[ i ] = arguments[ i ];
+		}
+
+		event.delegateTarget = this;
+
+		// Call the preDispatch hook for the mapped type, and let it bail if desired
+		if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
+			return;
+		}
+
+		// Determine handlers
+		handlerQueue = jQuery.event.handlers.call( this, event, handlers );
+
+		// Run delegates first; they may want to stop propagation beneath us
+		i = 0;
+		while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) {
+			event.currentTarget = matched.elem;
+
+			j = 0;
+			while ( ( handleObj = matched.handlers[ j++ ] ) &&
+				!event.isImmediatePropagationStopped() ) {
+
+				// If the event is namespaced, then each handler is only invoked if it is
+				// specially universal or its namespaces are a superset of the event's.
+				if ( !event.rnamespace || handleObj.namespace === false ||
+					event.rnamespace.test( handleObj.namespace ) ) {
+
+					event.handleObj = handleObj;
+					event.data = handleObj.data;
+
+					ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle ||
+						handleObj.handler ).apply( matched.elem, args );
+
+					if ( ret !== undefined ) {
+						if ( ( event.result = ret ) === false ) {
+							event.preventDefault();
+							event.stopPropagation();
+						}
+					}
+				}
+			}
+		}
+
+		// Call the postDispatch hook for the mapped type
+		if ( special.postDispatch ) {
+			special.postDispatch.call( this, event );
+		}
+
+		return event.result;
+	},
+
+	handlers: function( event, handlers ) {
+		var i, handleObj, sel, matchedHandlers, matchedSelectors,
+			handlerQueue = [],
+			delegateCount = handlers.delegateCount,
+			cur = event.target;
+
+		// Find delegate handlers
+		if ( delegateCount &&
+
+			// Support: IE <=9
+			// Black-hole SVG <use> instance trees (trac-13180)
+			cur.nodeType &&
+
+			// Support: Firefox <=42
+			// Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861)
+			// https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click
+			// Support: IE 11 only
+			// ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343)
+			!( event.type === "click" && event.button >= 1 ) ) {
+
+			for ( ; cur !== this; cur = cur.parentNode || this ) {
+
+				// Don't check non-elements (#13208)
+				// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
+				if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) {
+					matchedHandlers = [];
+					matchedSelectors = {};
+					for ( i = 0; i < delegateCount; i++ ) {
+						handleObj = handlers[ i ];
+
+						// Don't conflict with Object.prototype properties (#13203)
+						sel = handleObj.selector + " ";
+
+						if ( matchedSelectors[ sel ] === undefined ) {
+							matchedSelectors[ sel ] = handleObj.needsContext ?
+								jQuery( sel, this ).index( cur ) > -1 :
+								jQuery.find( sel, this, null, [ cur ] ).length;
+						}
+						if ( matchedSelectors[ sel ] ) {
+							matchedHandlers.push( handleObj );
+						}
+					}
+					if ( matchedHandlers.length ) {
+						handlerQueue.push( { elem: cur, handlers: matchedHandlers } );
+					}
+				}
+			}
+		}
+
+		// Add the remaining (directly-bound) handlers
+		cur = this;
+		if ( delegateCount < handlers.length ) {
+			handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } );
+		}
+
+		return handlerQueue;
+	},
+
+	addProp: function( name, hook ) {
+		Object.defineProperty( jQuery.Event.prototype, name, {
+			enumerable: true,
+			configurable: true,
+
+			get: isFunction( hook ) ?
+				function() {
+					if ( this.originalEvent ) {
+						return hook( this.originalEvent );
+					}
+				} :
+				function() {
+					if ( this.originalEvent ) {
+						return this.originalEvent[ name ];
+					}
+				},
+
+			set: function( value ) {
+				Object.defineProperty( this, name, {
+					enumerable: true,
+					configurable: true,
+					writable: true,
+					value: value
+				} );
+			}
+		} );
+	},
+
+	fix: function( originalEvent ) {
+		return originalEvent[ jQuery.expando ] ?
+			originalEvent :
+			new jQuery.Event( originalEvent );
+	},
+
+	special: {
+		load: {
+
+			// Prevent triggered image.load events from bubbling to window.load
+			noBubble: true
+		},
+		click: {
+
+			// Utilize native event to ensure correct state for checkable inputs
+			setup: function( data ) {
+
+				// For mutual compressibility with _default, replace `this` access with a local var.
+				// `|| data` is dead code meant only to preserve the variable through minification.
+				var el = this || data;
+
+				// Claim the first handler
+				if ( rcheckableType.test( el.type ) &&
+					el.click && nodeName( el, "input" ) ) {
+
+					// dataPriv.set( el, "click", ... )
+					leverageNative( el, "click", returnTrue );
+				}
+
+				// Return false to allow normal processing in the caller
+				return false;
+			},
+			trigger: function( data ) {
+
+				// For mutual compressibility with _default, replace `this` access with a local var.
+				// `|| data` is dead code meant only to preserve the variable through minification.
+				var el = this || data;
+
+				// Force setup before triggering a click
+				if ( rcheckableType.test( el.type ) &&
+					el.click && nodeName( el, "input" ) ) {
+
+					leverageNative( el, "click" );
+				}
+
+				// Return non-false to allow normal event-path propagation
+				return true;
+			},
+
+			// For cross-browser consistency, suppress native .click() on links
+			// Also prevent it if we're currently inside a leveraged native-event stack
+			_default: function( event ) {
+				var target = event.target;
+				return rcheckableType.test( target.type ) &&
+					target.click && nodeName( target, "input" ) &&
+					dataPriv.get( target, "click" ) ||
+					nodeName( target, "a" );
+			}
+		},
+
+		beforeunload: {
+			postDispatch: function( event ) {
+
+				// Support: Firefox 20+
+				// Firefox doesn't alert if the returnValue field is not set.
+				if ( event.result !== undefined && event.originalEvent ) {
+					event.originalEvent.returnValue = event.result;
+				}
+			}
+		}
+	}
+};
+
+// Ensure the presence of an event listener that handles manually-triggered
+// synthetic events by interrupting progress until reinvoked in response to
+// *native* events that it fires directly, ensuring that state changes have
+// already occurred before other listeners are invoked.
+function leverageNative( el, type, expectSync ) {
+
+	// Missing expectSync indicates a trigger call, which must force setup through jQuery.event.add
+	if ( !expectSync ) {
+		if ( dataPriv.get( el, type ) === undefined ) {
+			jQuery.event.add( el, type, returnTrue );
+		}
+		return;
+	}
+
+	// Register the controller as a special universal handler for all event namespaces
+	dataPriv.set( el, type, false );
+	jQuery.event.add( el, type, {
+		namespace: false,
+		handler: function( event ) {
+			var notAsync, result,
+				saved = dataPriv.get( this, type );
+
+			if ( ( event.isTrigger & 1 ) && this[ type ] ) {
+
+				// Interrupt processing of the outer synthetic .trigger()ed event
+				// Saved data should be false in such cases, but might be a leftover capture object
+				// from an async native handler (gh-4350)
+				if ( !saved.length ) {
+
+					// Store arguments for use when handling the inner native event
+					// There will always be at least one argument (an event object), so this array
+					// will not be confused with a leftover capture object.
+					saved = slice.call( arguments );
+					dataPriv.set( this, type, saved );
+
+					// Trigger the native event and capture its result
+					// Support: IE <=9 - 11+
+					// focus() and blur() are asynchronous
+					notAsync = expectSync( this, type );
+					this[ type ]();
+					result = dataPriv.get( this, type );
+					if ( saved !== result || notAsync ) {
+						dataPriv.set( this, type, false );
+					} else {
+						result = {};
+					}
+					if ( saved !== result ) {
+
+						// Cancel the outer synthetic event
+						event.stopImmediatePropagation();
+						event.preventDefault();
+
+						// Support: Chrome 86+
+						// In Chrome, if an element having a focusout handler is blurred by
+						// clicking outside of it, it invokes the handler synchronously. If
+						// that handler calls `.remove()` on the element, the data is cleared,
+						// leaving `result` undefined. We need to guard against this.
+						return result && result.value;
+					}
+
+				// If this is an inner synthetic event for an event with a bubbling surrogate
+				// (focus or blur), assume that the surrogate already propagated from triggering the
+				// native event and prevent that from happening again here.
+				// This technically gets the ordering wrong w.r.t. to `.trigger()` (in which the
+				// bubbling surrogate propagates *after* the non-bubbling base), but that seems
+				// less bad than duplication.
+				} else if ( ( jQuery.event.special[ type ] || {} ).delegateType ) {
+					event.stopPropagation();
+				}
+
+			// If this is a native event triggered above, everything is now in order
+			// Fire an inner synthetic event with the original arguments
+			} else if ( saved.length ) {
+
+				// ...and capture the result
+				dataPriv.set( this, type, {
+					value: jQuery.event.trigger(
+
+						// Support: IE <=9 - 11+
+						// Extend with the prototype to reset the above stopImmediatePropagation()
+						jQuery.extend( saved[ 0 ], jQuery.Event.prototype ),
+						saved.slice( 1 ),
+						this
+					)
+				} );
+
+				// Abort handling of the native event
+				event.stopImmediatePropagation();
+			}
+		}
+	} );
+}
+
+jQuery.removeEvent = function( elem, type, handle ) {
+
+	// This "if" is needed for plain objects
+	if ( elem.removeEventListener ) {
+		elem.removeEventListener( type, handle );
+	}
+};
+
+jQuery.Event = function( src, props ) {
+
+	// Allow instantiation without the 'new' keyword
+	if ( !( this instanceof jQuery.Event ) ) {
+		return new jQuery.Event( src, props );
+	}
+
+	// Event object
+	if ( src && src.type ) {
+		this.originalEvent = src;
+		this.type = src.type;
+
+		// Events bubbling up the document may have been marked as prevented
+		// by a handler lower down the tree; reflect the correct value.
+		this.isDefaultPrevented = src.defaultPrevented ||
+				src.defaultPrevented === undefined &&
+
+				// Support: Android <=2.3 only
+				src.returnValue === false ?
+			returnTrue :
+			returnFalse;
+
+		// Create target properties
+		// Support: Safari <=6 - 7 only
+		// Target should not be a text node (#504, #13143)
+		this.target = ( src.target && src.target.nodeType === 3 ) ?
+			src.target.parentNode :
+			src.target;
+
+		this.currentTarget = src.currentTarget;
+		this.relatedTarget = src.relatedTarget;
+
+	// Event type
+	} else {
+		this.type = src;
+	}
+
+	// Put explicitly provided properties onto the event object
+	if ( props ) {
+		jQuery.extend( this, props );
+	}
+
+	// Create a timestamp if incoming event doesn't have one
+	this.timeStamp = src && src.timeStamp || Date.now();
+
+	// Mark it as fixed
+	this[ jQuery.expando ] = true;
+};
+
+// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
+// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
+jQuery.Event.prototype = {
+	constructor: jQuery.Event,
+	isDefaultPrevented: returnFalse,
+	isPropagationStopped: returnFalse,
+	isImmediatePropagationStopped: returnFalse,
+	isSimulated: false,
+
+	preventDefault: function() {
+		var e = this.originalEvent;
+
+		this.isDefaultPrevented = returnTrue;
+
+		if ( e && !this.isSimulated ) {
+			e.preventDefault();
+		}
+	},
+	stopPropagation: function() {
+		var e = this.originalEvent;
+
+		this.isPropagationStopped = returnTrue;
+
+		if ( e && !this.isSimulated ) {
+			e.stopPropagation();
+		}
+	},
+	stopImmediatePropagation: function() {
+		var e = this.originalEvent;
+
+		this.isImmediatePropagationStopped = returnTrue;
+
+		if ( e && !this.isSimulated ) {
+			e.stopImmediatePropagation();
+		}
+
+		this.stopPropagation();
+	}
+};
+
+// Includes all common event props including KeyEvent and MouseEvent specific props
+jQuery.each( {
+	altKey: true,
+	bubbles: true,
+	cancelable: true,
+	changedTouches: true,
+	ctrlKey: true,
+	detail: true,
+	eventPhase: true,
+	metaKey: true,
+	pageX: true,
+	pageY: true,
+	shiftKey: true,
+	view: true,
+	"char": true,
+	code: true,
+	charCode: true,
+	key: true,
+	keyCode: true,
+	button: true,
+	buttons: true,
+	clientX: true,
+	clientY: true,
+	offsetX: true,
+	offsetY: true,
+	pointerId: true,
+	pointerType: true,
+	screenX: true,
+	screenY: true,
+	targetTouches: true,
+	toElement: true,
+	touches: true,
+	which: true
+}, jQuery.event.addProp );
+
+jQuery.each( { focus: "focusin", blur: "focusout" }, function( type, delegateType ) {
+	jQuery.event.special[ type ] = {
+
+		// Utilize native event if possible so blur/focus sequence is correct
+		setup: function() {
+
+			// Claim the first handler
+			// dataPriv.set( this, "focus", ... )
+			// dataPriv.set( this, "blur", ... )
+			leverageNative( this, type, expectSync );
+
+			// Return false to allow normal processing in the caller
+			return false;
+		},
+		trigger: function() {
+
+			// Force setup before trigger
+			leverageNative( this, type );
+
+			// Return non-false to allow normal event-path propagation
+			return true;
+		},
+
+		// Suppress native focus or blur as it's already being fired
+		// in leverageNative.
+		_default: function() {
+			return true;
+		},
+
+		delegateType: delegateType
+	};
+} );
+
+// Create mouseenter/leave events using mouseover/out and event-time checks
+// so that event delegation works in jQuery.
+// Do the same for pointerenter/pointerleave and pointerover/pointerout
+//
+// Support: Safari 7 only
+// Safari sends mouseenter too often; see:
+// https://bugs.chromium.org/p/chromium/issues/detail?id=470258
+// for the description of the bug (it existed in older Chrome versions as well).
+jQuery.each( {
+	mouseenter: "mouseover",
+	mouseleave: "mouseout",
+	pointerenter: "pointerover",
+	pointerleave: "pointerout"
+}, function( orig, fix ) {
+	jQuery.event.special[ orig ] = {
+		delegateType: fix,
+		bindType: fix,
+
+		handle: function( event ) {
+			var ret,
+				target = this,
+				related = event.relatedTarget,
+				handleObj = event.handleObj;
+
+			// For mouseenter/leave call the handler if related is outside the target.
+			// NB: No relatedTarget if the mouse left/entered the browser window
+			if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) {
+				event.type = handleObj.origType;
+				ret = handleObj.handler.apply( this, arguments );
+				event.type = fix;
+			}
+			return ret;
+		}
+	};
+} );
+
+jQuery.fn.extend( {
+
+	on: function( types, selector, data, fn ) {
+		return on( this, types, selector, data, fn );
+	},
+	one: function( types, selector, data, fn ) {
+		return on( this, types, selector, data, fn, 1 );
+	},
+	off: function( types, selector, fn ) {
+		var handleObj, type;
+		if ( types && types.preventDefault && types.handleObj ) {
+
+			// ( event )  dispatched jQuery.Event
+			handleObj = types.handleObj;
+			jQuery( types.delegateTarget ).off(
+				handleObj.namespace ?
+					handleObj.origType + "." + handleObj.namespace :
+					handleObj.origType,
+				handleObj.selector,
+				handleObj.handler
+			);
+			return this;
+		}
+		if ( typeof types === "object" ) {
+
+			// ( types-object [, selector] )
+			for ( type in types ) {
+				this.off( type, selector, types[ type ] );
+			}
+			return this;
+		}
+		if ( selector === false || typeof selector === "function" ) {
+
+			// ( types [, fn] )
+			fn = selector;
+			selector = undefined;
+		}
+		if ( fn === false ) {
+			fn = returnFalse;
+		}
+		return this.each( function() {
+			jQuery.event.remove( this, types, fn, selector );
+		} );
+	}
+} );
+
+
+var
+
+	// Support: IE <=10 - 11, Edge 12 - 13 only
+	// In IE/Edge using regex groups here causes severe slowdowns.
+	// See https://connect.microsoft.com/IE/feedback/details/1736512/
+	rnoInnerhtml = /<script|<style|<link/i,
+
+	// checked="checked" or checked
+	rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
+	rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g;
+
+// Prefer a tbody over its parent table for containing new rows
+function manipulationTarget( elem, content ) {
+	if ( nodeName( elem, "table" ) &&
+		nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) {
+
+		return jQuery( elem ).children( "tbody" )[ 0 ] || elem;
+	}
+
+	return elem;
+}
+
+// Replace/restore the type attribute of script elements for safe DOM manipulation
+function disableScript( elem ) {
+	elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type;
+	return elem;
+}
+function restoreScript( elem ) {
+	if ( ( elem.type || "" ).slice( 0, 5 ) === "true/" ) {
+		elem.type = elem.type.slice( 5 );
+	} else {
+		elem.removeAttribute( "type" );
+	}
+
+	return elem;
+}
+
+function cloneCopyEvent( src, dest ) {
+	var i, l, type, pdataOld, udataOld, udataCur, events;
+
+	if ( dest.nodeType !== 1 ) {
+		return;
+	}
+
+	// 1. Copy private data: events, handlers, etc.
+	if ( dataPriv.hasData( src ) ) {
+		pdataOld = dataPriv.get( src );
+		events = pdataOld.events;
+
+		if ( events ) {
+			dataPriv.remove( dest, "handle events" );
+
+			for ( type in events ) {
+				for ( i = 0, l = events[ type ].length; i < l; i++ ) {
+					jQuery.event.add( dest, type, events[ type ][ i ] );
+				}
+			}
+		}
+	}
+
+	// 2. Copy user data
+	if ( dataUser.hasData( src ) ) {
+		udataOld = dataUser.access( src );
+		udataCur = jQuery.extend( {}, udataOld );
+
+		dataUser.set( dest, udataCur );
+	}
+}
+
+// Fix IE bugs, see support tests
+function fixInput( src, dest ) {
+	var nodeName = dest.nodeName.toLowerCase();
+
+	// Fails to persist the checked state of a cloned checkbox or radio button.
+	if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
+		dest.checked = src.checked;
+
+	// Fails to return the selected option to the default selected state when cloning options
+	} else if ( nodeName === "input" || nodeName === "textarea" ) {
+		dest.defaultValue = src.defaultValue;
+	}
+}
+
+function domManip( collection, args, callback, ignored ) {
+
+	// Flatten any nested arrays
+	args = flat( args );
+
+	var fragment, first, scripts, hasScripts, node, doc,
+		i = 0,
+		l = collection.length,
+		iNoClone = l - 1,
+		value = args[ 0 ],
+		valueIsFunction = isFunction( value );
+
+	// We can't cloneNode fragments that contain checked, in WebKit
+	if ( valueIsFunction ||
+			( l > 1 && typeof value === "string" &&
+				!support.checkClone && rchecked.test( value ) ) ) {
+		return collection.each( function( index ) {
+			var self = collection.eq( index );
+			if ( valueIsFunction ) {
+				args[ 0 ] = value.call( this, index, self.html() );
+			}
+			domManip( self, args, callback, ignored );
+		} );
+	}
+
+	if ( l ) {
+		fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored );
+		first = fragment.firstChild;
+
+		if ( fragment.childNodes.length === 1 ) {
+			fragment = first;
+		}
+
+		// Require either new content or an interest in ignored elements to invoke the callback
+		if ( first || ignored ) {
+			scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
+			hasScripts = scripts.length;
+
+			// Use the original fragment for the last item
+			// instead of the first because it can end up
+			// being emptied incorrectly in certain situations (#8070).
+			for ( ; i < l; i++ ) {
+				node = fragment;
+
+				if ( i !== iNoClone ) {
+					node = jQuery.clone( node, true, true );
+
+					// Keep references to cloned scripts for later restoration
+					if ( hasScripts ) {
+
+						// Support: Android <=4.0 only, PhantomJS 1 only
+						// push.apply(_, arraylike) throws on ancient WebKit
+						jQuery.merge( scripts, getAll( node, "script" ) );
+					}
+				}
+
+				callback.call( collection[ i ], node, i );
+			}
+
+			if ( hasScripts ) {
+				doc = scripts[ scripts.length - 1 ].ownerDocument;
+
+				// Reenable scripts
+				jQuery.map( scripts, restoreScript );
+
+				// Evaluate executable scripts on first document insertion
+				for ( i = 0; i < hasScripts; i++ ) {
+					node = scripts[ i ];
+					if ( rscriptType.test( node.type || "" ) &&
+						!dataPriv.access( node, "globalEval" ) &&
+						jQuery.contains( doc, node ) ) {
+
+						if ( node.src && ( node.type || "" ).toLowerCase()  !== "module" ) {
+
+							// Optional AJAX dependency, but won't run scripts if not present
+							if ( jQuery._evalUrl && !node.noModule ) {
+								jQuery._evalUrl( node.src, {
+									nonce: node.nonce || node.getAttribute( "nonce" )
+								}, doc );
+							}
+						} else {
+							DOMEval( node.textContent.replace( rcleanScript, "" ), node, doc );
+						}
+					}
+				}
+			}
+		}
+	}
+
+	return collection;
+}
+
+function remove( elem, selector, keepData ) {
+	var node,
+		nodes = selector ? jQuery.filter( selector, elem ) : elem,
+		i = 0;
+
+	for ( ; ( node = nodes[ i ] ) != null; i++ ) {
+		if ( !keepData && node.nodeType === 1 ) {
+			jQuery.cleanData( getAll( node ) );
+		}
+
+		if ( node.parentNode ) {
+			if ( keepData && isAttached( node ) ) {
+				setGlobalEval( getAll( node, "script" ) );
+			}
+			node.parentNode.removeChild( node );
+		}
+	}
+
+	return elem;
+}
+
+jQuery.extend( {
+	htmlPrefilter: function( html ) {
+		return html;
+	},
+
+	clone: function( elem, dataAndEvents, deepDataAndEvents ) {
+		var i, l, srcElements, destElements,
+			clone = elem.cloneNode( true ),
+			inPage = isAttached( elem );
+
+		// Fix IE cloning issues
+		if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
+				!jQuery.isXMLDoc( elem ) ) {
+
+			// We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2
+			destElements = getAll( clone );
+			srcElements = getAll( elem );
+
+			for ( i = 0, l = srcElements.length; i < l; i++ ) {
+				fixInput( srcElements[ i ], destElements[ i ] );
+			}
+		}
+
+		// Copy the events from the original to the clone
+		if ( dataAndEvents ) {
+			if ( deepDataAndEvents ) {
+				srcElements = srcElements || getAll( elem );
+				destElements = destElements || getAll( clone );
+
+				for ( i = 0, l = srcElements.length; i < l; i++ ) {
+					cloneCopyEvent( srcElements[ i ], destElements[ i ] );
+				}
+			} else {
+				cloneCopyEvent( elem, clone );
+			}
+		}
+
+		// Preserve script evaluation history
+		destElements = getAll( clone, "script" );
+		if ( destElements.length > 0 ) {
+			setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
+		}
+
+		// Return the cloned set
+		return clone;
+	},
+
+	cleanData: function( elems ) {
+		var data, elem, type,
+			special = jQuery.event.special,
+			i = 0;
+
+		for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) {
+			if ( acceptData( elem ) ) {
+				if ( ( data = elem[ dataPriv.expando ] ) ) {
+					if ( data.events ) {
+						for ( type in data.events ) {
+							if ( special[ type ] ) {
+								jQuery.event.remove( elem, type );
+
+							// This is a shortcut to avoid jQuery.event.remove's overhead
+							} else {
+								jQuery.removeEvent( elem, type, data.handle );
+							}
+						}
+					}
+
+					// Support: Chrome <=35 - 45+
+					// Assign undefined instead of using delete, see Data#remove
+					elem[ dataPriv.expando ] = undefined;
+				}
+				if ( elem[ dataUser.expando ] ) {
+
+					// Support: Chrome <=35 - 45+
+					// Assign undefined instead of using delete, see Data#remove
+					elem[ dataUser.expando ] = undefined;
+				}
+			}
+		}
+	}
+} );
+
+jQuery.fn.extend( {
+	detach: function( selector ) {
+		return remove( this, selector, true );
+	},
+
+	remove: function( selector ) {
+		return remove( this, selector );
+	},
+
+	text: function( value ) {
+		return access( this, function( value ) {
+			return value === undefined ?
+				jQuery.text( this ) :
+				this.empty().each( function() {
+					if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+						this.textContent = value;
+					}
+				} );
+		}, null, value, arguments.length );
+	},
+
+	append: function() {
+		return domManip( this, arguments, function( elem ) {
+			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+				var target = manipulationTarget( this, elem );
+				target.appendChild( elem );
+			}
+		} );
+	},
+
+	prepend: function() {
+		return domManip( this, arguments, function( elem ) {
+			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+				var target = manipulationTarget( this, elem );
+				target.insertBefore( elem, target.firstChild );
+			}
+		} );
+	},
+
+	before: function() {
+		return domManip( this, arguments, function( elem ) {
+			if ( this.parentNode ) {
+				this.parentNode.insertBefore( elem, this );
+			}
+		} );
+	},
+
+	after: function() {
+		return domManip( this, arguments, function( elem ) {
+			if ( this.parentNode ) {
+				this.parentNode.insertBefore( elem, this.nextSibling );
+			}
+		} );
+	},
+
+	empty: function() {
+		var elem,
+			i = 0;
+
+		for ( ; ( elem = this[ i ] ) != null; i++ ) {
+			if ( elem.nodeType === 1 ) {
+
+				// Prevent memory leaks
+				jQuery.cleanData( getAll( elem, false ) );
+
+				// Remove any remaining nodes
+				elem.textContent = "";
+			}
+		}
+
+		return this;
+	},
+
+	clone: function( dataAndEvents, deepDataAndEvents ) {
+		dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
+		deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
+
+		return this.map( function() {
+			return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
+		} );
+	},
+
+	html: function( value ) {
+		return access( this, function( value ) {
+			var elem = this[ 0 ] || {},
+				i = 0,
+				l = this.length;
+
+			if ( value === undefined && elem.nodeType === 1 ) {
+				return elem.innerHTML;
+			}
+
+			// See if we can take a shortcut and just use innerHTML
+			if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
+				!wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {
+
+				value = jQuery.htmlPrefilter( value );
+
+				try {
+					for ( ; i < l; i++ ) {
+						elem = this[ i ] || {};
+
+						// Remove element nodes and prevent memory leaks
+						if ( elem.nodeType === 1 ) {
+							jQuery.cleanData( getAll( elem, false ) );
+							elem.innerHTML = value;
+						}
+					}
+
+					elem = 0;
+
+				// If using innerHTML throws an exception, use the fallback method
+				} catch ( e ) {}
+			}
+
+			if ( elem ) {
+				this.empty().append( value );
+			}
+		}, null, value, arguments.length );
+	},
+
+	replaceWith: function() {
+		var ignored = [];
+
+		// Make the changes, replacing each non-ignored context element with the new content
+		return domManip( this, arguments, function( elem ) {
+			var parent = this.parentNode;
+
+			if ( jQuery.inArray( this, ignored ) < 0 ) {
+				jQuery.cleanData( getAll( this ) );
+				if ( parent ) {
+					parent.replaceChild( elem, this );
+				}
+			}
+
+		// Force callback invocation
+		}, ignored );
+	}
+} );
+
+jQuery.each( {
+	appendTo: "append",
+	prependTo: "prepend",
+	insertBefore: "before",
+	insertAfter: "after",
+	replaceAll: "replaceWith"
+}, function( name, original ) {
+	jQuery.fn[ name ] = function( selector ) {
+		var elems,
+			ret = [],
+			insert = jQuery( selector ),
+			last = insert.length - 1,
+			i = 0;
+
+		for ( ; i <= last; i++ ) {
+			elems = i === last ? this : this.clone( true );
+			jQuery( insert[ i ] )[ original ]( elems );
+
+			// Support: Android <=4.0 only, PhantomJS 1 only
+			// .get() because push.apply(_, arraylike) throws on ancient WebKit
+			push.apply( ret, elems.get() );
+		}
+
+		return this.pushStack( ret );
+	};
+} );
+var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );
+
+var getStyles = function( elem ) {
+
+		// Support: IE <=11 only, Firefox <=30 (#15098, #14150)
+		// IE throws on elements created in popups
+		// FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
+		var view = elem.ownerDocument.defaultView;
+
+		if ( !view || !view.opener ) {
+			view = window;
+		}
+
+		return view.getComputedStyle( elem );
+	};
+
+var swap = function( elem, options, callback ) {
+	var ret, name,
+		old = {};
+
+	// Remember the old values, and insert the new ones
+	for ( name in options ) {
+		old[ name ] = elem.style[ name ];
+		elem.style[ name ] = options[ name ];
+	}
+
+	ret = callback.call( elem );
+
+	// Revert the old values
+	for ( name in options ) {
+		elem.style[ name ] = old[ name ];
+	}
+
+	return ret;
+};
+
+
+var rboxStyle = new RegExp( cssExpand.join( "|" ), "i" );
+
+
+
+( function() {
+
+	// Executing both pixelPosition & boxSizingReliable tests require only one layout
+	// so they're executed at the same time to save the second computation.
+	function computeStyleTests() {
+
+		// This is a singleton, we need to execute it only once
+		if ( !div ) {
+			return;
+		}
+
+		container.style.cssText = "position:absolute;left:-11111px;width:60px;" +
+			"margin-top:1px;padding:0;border:0";
+		div.style.cssText =
+			"position:relative;display:block;box-sizing:border-box;overflow:scroll;" +
+			"margin:auto;border:1px;padding:1px;" +
+			"width:60%;top:1%";
+		documentElement.appendChild( container ).appendChild( div );
+
+		var divStyle = window.getComputedStyle( div );
+		pixelPositionVal = divStyle.top !== "1%";
+
+		// Support: Android 4.0 - 4.3 only, Firefox <=3 - 44
+		reliableMarginLeftVal = roundPixelMeasures( divStyle.marginLeft ) === 12;
+
+		// Support: Android 4.0 - 4.3 only, Safari <=9.1 - 10.1, iOS <=7.0 - 9.3
+		// Some styles come back with percentage values, even though they shouldn't
+		div.style.right = "60%";
+		pixelBoxStylesVal = roundPixelMeasures( divStyle.right ) === 36;
+
+		// Support: IE 9 - 11 only
+		// Detect misreporting of content dimensions for box-sizing:border-box elements
+		boxSizingReliableVal = roundPixelMeasures( divStyle.width ) === 36;
+
+		// Support: IE 9 only
+		// Detect overflow:scroll screwiness (gh-3699)
+		// Support: Chrome <=64
+		// Don't get tricked when zoom affects offsetWidth (gh-4029)
+		div.style.position = "absolute";
+		scrollboxSizeVal = roundPixelMeasures( div.offsetWidth / 3 ) === 12;
+
+		documentElement.removeChild( container );
+
+		// Nullify the div so it wouldn't be stored in the memory and
+		// it will also be a sign that checks already performed
+		div = null;
+	}
+
+	function roundPixelMeasures( measure ) {
+		return Math.round( parseFloat( measure ) );
+	}
+
+	var pixelPositionVal, boxSizingReliableVal, scrollboxSizeVal, pixelBoxStylesVal,
+		reliableTrDimensionsVal, reliableMarginLeftVal,
+		container = document.createElement( "div" ),
+		div = document.createElement( "div" );
+
+	// Finish early in limited (non-browser) environments
+	if ( !div.style ) {
+		return;
+	}
+
+	// Support: IE <=9 - 11 only
+	// Style of cloned element affects source element cloned (#8908)
+	div.style.backgroundClip = "content-box";
+	div.cloneNode( true ).style.backgroundClip = "";
+	support.clearCloneStyle = div.style.backgroundClip === "content-box";
+
+	jQuery.extend( support, {
+		boxSizingReliable: function() {
+			computeStyleTests();
+			return boxSizingReliableVal;
+		},
+		pixelBoxStyles: function() {
+			computeStyleTests();
+			return pixelBoxStylesVal;
+		},
+		pixelPosition: function() {
+			computeStyleTests();
+			return pixelPositionVal;
+		},
+		reliableMarginLeft: function() {
+			computeStyleTests();
+			return reliableMarginLeftVal;
+		},
+		scrollboxSize: function() {
+			computeStyleTests();
+			return scrollboxSizeVal;
+		},
+
+		// Support: IE 9 - 11+, Edge 15 - 18+
+		// IE/Edge misreport `getComputedStyle` of table rows with width/height
+		// set in CSS while `offset*` properties report correct values.
+		// Behavior in IE 9 is more subtle than in newer versions & it passes
+		// some versions of this test; make sure not to make it pass there!
+		//
+		// Support: Firefox 70+
+		// Only Firefox includes border widths
+		// in computed dimensions. (gh-4529)
+		reliableTrDimensions: function() {
+			var table, tr, trChild, trStyle;
+			if ( reliableTrDimensionsVal == null ) {
+				table = document.createElement( "table" );
+				tr = document.createElement( "tr" );
+				trChild = document.createElement( "div" );
+
+				table.style.cssText = "position:absolute;left:-11111px;border-collapse:separate";
+				tr.style.cssText = "border:1px solid";
+
+				// Support: Chrome 86+
+				// Height set through cssText does not get applied.
+				// Computed height then comes back as 0.
+				tr.style.height = "1px";
+				trChild.style.height = "9px";
+
+				// Support: Android 8 Chrome 86+
+				// In our bodyBackground.html iframe,
+				// display for all div elements is set to "inline",
+				// which causes a problem only in Android 8 Chrome 86.
+				// Ensuring the div is display: block
+				// gets around this issue.
+				trChild.style.display = "block";
+
+				documentElement
+					.appendChild( table )
+					.appendChild( tr )
+					.appendChild( trChild );
+
+				trStyle = window.getComputedStyle( tr );
+				reliableTrDimensionsVal = ( parseInt( trStyle.height, 10 ) +
+					parseInt( trStyle.borderTopWidth, 10 ) +
+					parseInt( trStyle.borderBottomWidth, 10 ) ) === tr.offsetHeight;
+
+				documentElement.removeChild( table );
+			}
+			return reliableTrDimensionsVal;
+		}
+	} );
+} )();
+
+
+function curCSS( elem, name, computed ) {
+	var width, minWidth, maxWidth, ret,
+
+		// Support: Firefox 51+
+		// Retrieving style before computed somehow
+		// fixes an issue with getting wrong values
+		// on detached elements
+		style = elem.style;
+
+	computed = computed || getStyles( elem );
+
+	// getPropertyValue is needed for:
+	//   .css('filter') (IE 9 only, #12537)
+	//   .css('--customProperty) (#3144)
+	if ( computed ) {
+		ret = computed.getPropertyValue( name ) || computed[ name ];
+
+		if ( ret === "" && !isAttached( elem ) ) {
+			ret = jQuery.style( elem, name );
+		}
+
+		// A tribute to the "awesome hack by Dean Edwards"
+		// Android Browser returns percentage for some values,
+		// but width seems to be reliably pixels.
+		// This is against the CSSOM draft spec:
+		// https://drafts.csswg.org/cssom/#resolved-values
+		if ( !support.pixelBoxStyles() && rnumnonpx.test( ret ) && rboxStyle.test( name ) ) {
+
+			// Remember the original values
+			width = style.width;
+			minWidth = style.minWidth;
+			maxWidth = style.maxWidth;
+
+			// Put in the new values to get a computed value out
+			style.minWidth = style.maxWidth = style.width = ret;
+			ret = computed.width;
+
+			// Revert the changed values
+			style.width = width;
+			style.minWidth = minWidth;
+			style.maxWidth = maxWidth;
+		}
+	}
+
+	return ret !== undefined ?
+
+		// Support: IE <=9 - 11 only
+		// IE returns zIndex value as an integer.
+		ret + "" :
+		ret;
+}
+
+
+function addGetHookIf( conditionFn, hookFn ) {
+
+	// Define the hook, we'll check on the first run if it's really needed.
+	return {
+		get: function() {
+			if ( conditionFn() ) {
+
+				// Hook not needed (or it's not possible to use it due
+				// to missing dependency), remove it.
+				delete this.get;
+				return;
+			}
+
+			// Hook needed; redefine it so that the support test is not executed again.
+			return ( this.get = hookFn ).apply( this, arguments );
+		}
+	};
+}
+
+
+var cssPrefixes = [ "Webkit", "Moz", "ms" ],
+	emptyStyle = document.createElement( "div" ).style,
+	vendorProps = {};
+
+// Return a vendor-prefixed property or undefined
+function vendorPropName( name ) {
+
+	// Check for vendor prefixed names
+	var capName = name[ 0 ].toUpperCase() + name.slice( 1 ),
+		i = cssPrefixes.length;
+
+	while ( i-- ) {
+		name = cssPrefixes[ i ] + capName;
+		if ( name in emptyStyle ) {
+			return name;
+		}
+	}
+}
+
+// Return a potentially-mapped jQuery.cssProps or vendor prefixed property
+function finalPropName( name ) {
+	var final = jQuery.cssProps[ name ] || vendorProps[ name ];
+
+	if ( final ) {
+		return final;
+	}
+	if ( name in emptyStyle ) {
+		return name;
+	}
+	return vendorProps[ name ] = vendorPropName( name ) || name;
+}
+
+
+var
+
+	// Swappable if display is none or starts with table
+	// except "table", "table-cell", or "table-caption"
+	// See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
+	rdisplayswap = /^(none|table(?!-c[ea]).+)/,
+	rcustomProp = /^--/,
+	cssShow = { position: "absolute", visibility: "hidden", display: "block" },
+	cssNormalTransform = {
+		letterSpacing: "0",
+		fontWeight: "400"
+	};
+
+function setPositiveNumber( _elem, value, subtract ) {
+
+	// Any relative (+/-) values have already been
+	// normalized at this point
+	var matches = rcssNum.exec( value );
+	return matches ?
+
+		// Guard against undefined "subtract", e.g., when used as in cssHooks
+		Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) :
+		value;
+}
+
+function boxModelAdjustment( elem, dimension, box, isBorderBox, styles, computedVal ) {
+	var i = dimension === "width" ? 1 : 0,
+		extra = 0,
+		delta = 0;
+
+	// Adjustment may not be necessary
+	if ( box === ( isBorderBox ? "border" : "content" ) ) {
+		return 0;
+	}
+
+	for ( ; i < 4; i += 2 ) {
+
+		// Both box models exclude margin
+		if ( box === "margin" ) {
+			delta += jQuery.css( elem, box + cssExpand[ i ], true, styles );
+		}
+
+		// If we get here with a content-box, we're seeking "padding" or "border" or "margin"
+		if ( !isBorderBox ) {
+
+			// Add padding
+			delta += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
+
+			// For "border" or "margin", add border
+			if ( box !== "padding" ) {
+				delta += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
+
+			// But still keep track of it otherwise
+			} else {
+				extra += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
+			}
+
+		// If we get here with a border-box (content + padding + border), we're seeking "content" or
+		// "padding" or "margin"
+		} else {
+
+			// For "content", subtract padding
+			if ( box === "content" ) {
+				delta -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
+			}
+
+			// For "content" or "padding", subtract border
+			if ( box !== "margin" ) {
+				delta -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
+			}
+		}
+	}
+
+	// Account for positive content-box scroll gutter when requested by providing computedVal
+	if ( !isBorderBox && computedVal >= 0 ) {
+
+		// offsetWidth/offsetHeight is a rounded sum of content, padding, scroll gutter, and border
+		// Assuming integer scroll gutter, subtract the rest and round down
+		delta += Math.max( 0, Math.ceil(
+			elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] -
+			computedVal -
+			delta -
+			extra -
+			0.5
+
+		// If offsetWidth/offsetHeight is unknown, then we can't determine content-box scroll gutter
+		// Use an explicit zero to avoid NaN (gh-3964)
+		) ) || 0;
+	}
+
+	return delta;
+}
+
+function getWidthOrHeight( elem, dimension, extra ) {
+
+	// Start with computed style
+	var styles = getStyles( elem ),
+
+		// To avoid forcing a reflow, only fetch boxSizing if we need it (gh-4322).
+		// Fake content-box until we know it's needed to know the true value.
+		boxSizingNeeded = !support.boxSizingReliable() || extra,
+		isBorderBox = boxSizingNeeded &&
+			jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
+		valueIsBorderBox = isBorderBox,
+
+		val = curCSS( elem, dimension, styles ),
+		offsetProp = "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 );
+
+	// Support: Firefox <=54
+	// Return a confounding non-pixel value or feign ignorance, as appropriate.
+	if ( rnumnonpx.test( val ) ) {
+		if ( !extra ) {
+			return val;
+		}
+		val = "auto";
+	}
+
+
+	// Support: IE 9 - 11 only
+	// Use offsetWidth/offsetHeight for when box sizing is unreliable.
+	// In those cases, the computed value can be trusted to be border-box.
+	if ( ( !support.boxSizingReliable() && isBorderBox ||
+
+		// Support: IE 10 - 11+, Edge 15 - 18+
+		// IE/Edge misreport `getComputedStyle` of table rows with width/height
+		// set in CSS while `offset*` properties report correct values.
+		// Interestingly, in some cases IE 9 doesn't suffer from this issue.
+		!support.reliableTrDimensions() && nodeName( elem, "tr" ) ||
+
+		// Fall back to offsetWidth/offsetHeight when value is "auto"
+		// This happens for inline elements with no explicit setting (gh-3571)
+		val === "auto" ||
+
+		// Support: Android <=4.1 - 4.3 only
+		// Also use offsetWidth/offsetHeight for misreported inline dimensions (gh-3602)
+		!parseFloat( val ) && jQuery.css( elem, "display", false, styles ) === "inline" ) &&
+
+		// Make sure the element is visible & connected
+		elem.getClientRects().length ) {
+
+		isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
+
+		// Where available, offsetWidth/offsetHeight approximate border box dimensions.
+		// Where not available (e.g., SVG), assume unreliable box-sizing and interpret the
+		// retrieved value as a content box dimension.
+		valueIsBorderBox = offsetProp in elem;
+		if ( valueIsBorderBox ) {
+			val = elem[ offsetProp ];
+		}
+	}
+
+	// Normalize "" and auto
+	val = parseFloat( val ) || 0;
+
+	// Adjust for the element's box model
+	return ( val +
+		boxModelAdjustment(
+			elem,
+			dimension,
+			extra || ( isBorderBox ? "border" : "content" ),
+			valueIsBorderBox,
+			styles,
+
+			// Provide the current computed size to request scroll gutter calculation (gh-3589)
+			val
+		)
+	) + "px";
+}
+
+jQuery.extend( {
+
+	// Add in style property hooks for overriding the default
+	// behavior of getting and setting a style property
+	cssHooks: {
+		opacity: {
+			get: function( elem, computed ) {
+				if ( computed ) {
+
+					// We should always get a number back from opacity
+					var ret = curCSS( elem, "opacity" );
+					return ret === "" ? "1" : ret;
+				}
+			}
+		}
+	},
+
+	// Don't automatically add "px" to these possibly-unitless properties
+	cssNumber: {
+		"animationIterationCount": true,
+		"columnCount": true,
+		"fillOpacity": true,
+		"flexGrow": true,
+		"flexShrink": true,
+		"fontWeight": true,
+		"gridArea": true,
+		"gridColumn": true,
+		"gridColumnEnd": true,
+		"gridColumnStart": true,
+		"gridRow": true,
+		"gridRowEnd": true,
+		"gridRowStart": true,
+		"lineHeight": true,
+		"opacity": true,
+		"order": true,
+		"orphans": true,
+		"widows": true,
+		"zIndex": true,
+		"zoom": true
+	},
+
+	// Add in properties whose names you wish to fix before
+	// setting or getting the value
+	cssProps: {},
+
+	// Get and set the style property on a DOM Node
+	style: function( elem, name, value, extra ) {
+
+		// Don't set styles on text and comment nodes
+		if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
+			return;
+		}
+
+		// Make sure that we're working with the right name
+		var ret, type, hooks,
+			origName = camelCase( name ),
+			isCustomProp = rcustomProp.test( name ),
+			style = elem.style;
+
+		// Make sure that we're working with the right name. We don't
+		// want to query the value if it is a CSS custom property
+		// since they are user-defined.
+		if ( !isCustomProp ) {
+			name = finalPropName( origName );
+		}
+
+		// Gets hook for the prefixed version, then unprefixed version
+		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
+
+		// Check if we're setting a value
+		if ( value !== undefined ) {
+			type = typeof value;
+
+			// Convert "+=" or "-=" to relative numbers (#7345)
+			if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) {
+				value = adjustCSS( elem, name, ret );
+
+				// Fixes bug #9237
+				type = "number";
+			}
+
+			// Make sure that null and NaN values aren't set (#7116)
+			if ( value == null || value !== value ) {
+				return;
+			}
+
+			// If a number was passed in, add the unit (except for certain CSS properties)
+			// The isCustomProp check can be removed in jQuery 4.0 when we only auto-append
+			// "px" to a few hardcoded values.
+			if ( type === "number" && !isCustomProp ) {
+				value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" );
+			}
+
+			// background-* props affect original clone's values
+			if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
+				style[ name ] = "inherit";
+			}
+
+			// If a hook was provided, use that value, otherwise just set the specified value
+			if ( !hooks || !( "set" in hooks ) ||
+				( value = hooks.set( elem, value, extra ) ) !== undefined ) {
+
+				if ( isCustomProp ) {
+					style.setProperty( name, value );
+				} else {
+					style[ name ] = value;
+				}
+			}
+
+		} else {
+
+			// If a hook was provided get the non-computed value from there
+			if ( hooks && "get" in hooks &&
+				( ret = hooks.get( elem, false, extra ) ) !== undefined ) {
+
+				return ret;
+			}
+
+			// Otherwise just get the value from the style object
+			return style[ name ];
+		}
+	},
+
+	css: function( elem, name, extra, styles ) {
+		var val, num, hooks,
+			origName = camelCase( name ),
+			isCustomProp = rcustomProp.test( name );
+
+		// Make sure that we're working with the right name. We don't
+		// want to modify the value if it is a CSS custom property
+		// since they are user-defined.
+		if ( !isCustomProp ) {
+			name = finalPropName( origName );
+		}
+
+		// Try prefixed name followed by the unprefixed name
+		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
+
+		// If a hook was provided get the computed value from there
+		if ( hooks && "get" in hooks ) {
+			val = hooks.get( elem, true, extra );
+		}
+
+		// Otherwise, if a way to get the computed value exists, use that
+		if ( val === undefined ) {
+			val = curCSS( elem, name, styles );
+		}
+
+		// Convert "normal" to computed value
+		if ( val === "normal" && name in cssNormalTransform ) {
+			val = cssNormalTransform[ name ];
+		}
+
+		// Make numeric if forced or a qualifier was provided and val looks numeric
+		if ( extra === "" || extra ) {
+			num = parseFloat( val );
+			return extra === true || isFinite( num ) ? num || 0 : val;
+		}
+
+		return val;
+	}
+} );
+
+jQuery.each( [ "height", "width" ], function( _i, dimension ) {
+	jQuery.cssHooks[ dimension ] = {
+		get: function( elem, computed, extra ) {
+			if ( computed ) {
+
+				// Certain elements can have dimension info if we invisibly show them
+				// but it must have a current display style that would benefit
+				return rdisplayswap.test( jQuery.css( elem, "display" ) ) &&
+
+					// Support: Safari 8+
+					// Table columns in Safari have non-zero offsetWidth & zero
+					// getBoundingClientRect().width unless display is changed.
+					// Support: IE <=11 only
+					// Running getBoundingClientRect on a disconnected node
+					// in IE throws an error.
+					( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ?
+					swap( elem, cssShow, function() {
+						return getWidthOrHeight( elem, dimension, extra );
+					} ) :
+					getWidthOrHeight( elem, dimension, extra );
+			}
+		},
+
+		set: function( elem, value, extra ) {
+			var matches,
+				styles = getStyles( elem ),
+
+				// Only read styles.position if the test has a chance to fail
+				// to avoid forcing a reflow.
+				scrollboxSizeBuggy = !support.scrollboxSize() &&
+					styles.position === "absolute",
+
+				// To avoid forcing a reflow, only fetch boxSizing if we need it (gh-3991)
+				boxSizingNeeded = scrollboxSizeBuggy || extra,
+				isBorderBox = boxSizingNeeded &&
+					jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
+				subtract = extra ?
+					boxModelAdjustment(
+						elem,
+						dimension,
+						extra,
+						isBorderBox,
+						styles
+					) :
+					0;
+
+			// Account for unreliable border-box dimensions by comparing offset* to computed and
+			// faking a content-box to get border and padding (gh-3699)
+			if ( isBorderBox && scrollboxSizeBuggy ) {
+				subtract -= Math.ceil(
+					elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] -
+					parseFloat( styles[ dimension ] ) -
+					boxModelAdjustment( elem, dimension, "border", false, styles ) -
+					0.5
+				);
+			}
+
+			// Convert to pixels if value adjustment is needed
+			if ( subtract && ( matches = rcssNum.exec( value ) ) &&
+				( matches[ 3 ] || "px" ) !== "px" ) {
+
+				elem.style[ dimension ] = value;
+				value = jQuery.css( elem, dimension );
+			}
+
+			return setPositiveNumber( elem, value, subtract );
+		}
+	};
+} );
+
+jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,
+	function( elem, computed ) {
+		if ( computed ) {
+			return ( parseFloat( curCSS( elem, "marginLeft" ) ) ||
+				elem.getBoundingClientRect().left -
+					swap( elem, { marginLeft: 0 }, function() {
+						return elem.getBoundingClientRect().left;
+					} )
+			) + "px";
+		}
+	}
+);
+
+// These hooks are used by animate to expand properties
+jQuery.each( {
+	margin: "",
+	padding: "",
+	border: "Width"
+}, function( prefix, suffix ) {
+	jQuery.cssHooks[ prefix + suffix ] = {
+		expand: function( value ) {
+			var i = 0,
+				expanded = {},
+
+				// Assumes a single number if not a string
+				parts = typeof value === "string" ? value.split( " " ) : [ value ];
+
+			for ( ; i < 4; i++ ) {
+				expanded[ prefix + cssExpand[ i ] + suffix ] =
+					parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
+			}
+
+			return expanded;
+		}
+	};
+
+	if ( prefix !== "margin" ) {
+		jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
+	}
+} );
+
+jQuery.fn.extend( {
+	css: function( name, value ) {
+		return access( this, function( elem, name, value ) {
+			var styles, len,
+				map = {},
+				i = 0;
+
+			if ( Array.isArray( name ) ) {
+				styles = getStyles( elem );
+				len = name.length;
+
+				for ( ; i < len; i++ ) {
+					map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
+				}
+
+				return map;
+			}
+
+			return value !== undefined ?
+				jQuery.style( elem, name, value ) :
+				jQuery.css( elem, name );
+		}, name, value, arguments.length > 1 );
+	}
+} );
+
+
+function Tween( elem, options, prop, end, easing ) {
+	return new Tween.prototype.init( elem, options, prop, end, easing );
+}
+jQuery.Tween = Tween;
+
+Tween.prototype = {
+	constructor: Tween,
+	init: function( elem, options, prop, end, easing, unit ) {
+		this.elem = elem;
+		this.prop = prop;
+		this.easing = easing || jQuery.easing._default;
+		this.options = options;
+		this.start = this.now = this.cur();
+		this.end = end;
+		this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
+	},
+	cur: function() {
+		var hooks = Tween.propHooks[ this.prop ];
+
+		return hooks && hooks.get ?
+			hooks.get( this ) :
+			Tween.propHooks._default.get( this );
+	},
+	run: function( percent ) {
+		var eased,
+			hooks = Tween.propHooks[ this.prop ];
+
+		if ( this.options.duration ) {
+			this.pos = eased = jQuery.easing[ this.easing ](
+				percent, this.options.duration * percent, 0, 1, this.options.duration
+			);
+		} else {
+			this.pos = eased = percent;
+		}
+		this.now = ( this.end - this.start ) * eased + this.start;
+
+		if ( this.options.step ) {
+			this.options.step.call( this.elem, this.now, this );
+		}
+
+		if ( hooks && hooks.set ) {
+			hooks.set( this );
+		} else {
+			Tween.propHooks._default.set( this );
+		}
+		return this;
+	}
+};
+
+Tween.prototype.init.prototype = Tween.prototype;
+
+Tween.propHooks = {
+	_default: {
+		get: function( tween ) {
+			var result;
+
+			// Use a property on the element directly when it is not a DOM element,
+			// or when there is no matching style property that exists.
+			if ( tween.elem.nodeType !== 1 ||
+				tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
+				return tween.elem[ tween.prop ];
+			}
+
+			// Passing an empty string as a 3rd parameter to .css will automatically
+			// attempt a parseFloat and fallback to a string if the parse fails.
+			// Simple values such as "10px" are parsed to Float;
+			// complex values such as "rotate(1rad)" are returned as-is.
+			result = jQuery.css( tween.elem, tween.prop, "" );
+
+			// Empty strings, null, undefined and "auto" are converted to 0.
+			return !result || result === "auto" ? 0 : result;
+		},
+		set: function( tween ) {
+
+			// Use step hook for back compat.
+			// Use cssHook if its there.
+			// Use .style if available and use plain properties where available.
+			if ( jQuery.fx.step[ tween.prop ] ) {
+				jQuery.fx.step[ tween.prop ]( tween );
+			} else if ( tween.elem.nodeType === 1 && (
+				jQuery.cssHooks[ tween.prop ] ||
+					tween.elem.style[ finalPropName( tween.prop ) ] != null ) ) {
+				jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
+			} else {
+				tween.elem[ tween.prop ] = tween.now;
+			}
+		}
+	}
+};
+
+// Support: IE <=9 only
+// Panic based approach to setting things on disconnected nodes
+Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
+	set: function( tween ) {
+		if ( tween.elem.nodeType && tween.elem.parentNode ) {
+			tween.elem[ tween.prop ] = tween.now;
+		}
+	}
+};
+
+jQuery.easing = {
+	linear: function( p ) {
+		return p;
+	},
+	swing: function( p ) {
+		return 0.5 - Math.cos( p * Math.PI ) / 2;
+	},
+	_default: "swing"
+};
+
+jQuery.fx = Tween.prototype.init;
+
+// Back compat <1.8 extension point
+jQuery.fx.step = {};
+
+
+
+
+var
+	fxNow, inProgress,
+	rfxtypes = /^(?:toggle|show|hide)$/,
+	rrun = /queueHooks$/;
+
+function schedule() {
+	if ( inProgress ) {
+		if ( document.hidden === false && window.requestAnimationFrame ) {
+			window.requestAnimationFrame( schedule );
+		} else {
+			window.setTimeout( schedule, jQuery.fx.interval );
+		}
+
+		jQuery.fx.tick();
+	}
+}
+
+// Animations created synchronously will run synchronously
+function createFxNow() {
+	window.setTimeout( function() {
+		fxNow = undefined;
+	} );
+	return ( fxNow = Date.now() );
+}
+
+// Generate parameters to create a standard animation
+function genFx( type, includeWidth ) {
+	var which,
+		i = 0,
+		attrs = { height: type };
+
+	// If we include width, step value is 1 to do all cssExpand values,
+	// otherwise step value is 2 to skip over Left and Right
+	includeWidth = includeWidth ? 1 : 0;
+	for ( ; i < 4; i += 2 - includeWidth ) {
+		which = cssExpand[ i ];
+		attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
+	}
+
+	if ( includeWidth ) {
+		attrs.opacity = attrs.width = type;
+	}
+
+	return attrs;
+}
+
+function createTween( value, prop, animation ) {
+	var tween,
+		collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ),
+		index = 0,
+		length = collection.length;
+	for ( ; index < length; index++ ) {
+		if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {
+
+			// We're done with this property
+			return tween;
+		}
+	}
+}
+
+function defaultPrefilter( elem, props, opts ) {
+	var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display,
+		isBox = "width" in props || "height" in props,
+		anim = this,
+		orig = {},
+		style = elem.style,
+		hidden = elem.nodeType && isHiddenWithinTree( elem ),
+		dataShow = dataPriv.get( elem, "fxshow" );
+
+	// Queue-skipping animations hijack the fx hooks
+	if ( !opts.queue ) {
+		hooks = jQuery._queueHooks( elem, "fx" );
+		if ( hooks.unqueued == null ) {
+			hooks.unqueued = 0;
+			oldfire = hooks.empty.fire;
+			hooks.empty.fire = function() {
+				if ( !hooks.unqueued ) {
+					oldfire();
+				}
+			};
+		}
+		hooks.unqueued++;
+
+		anim.always( function() {
+
+			// Ensure the complete handler is called before this completes
+			anim.always( function() {
+				hooks.unqueued--;
+				if ( !jQuery.queue( elem, "fx" ).length ) {
+					hooks.empty.fire();
+				}
+			} );
+		} );
+	}
+
+	// Detect show/hide animations
+	for ( prop in props ) {
+		value = props[ prop ];
+		if ( rfxtypes.test( value ) ) {
+			delete props[ prop ];
+			toggle = toggle || value === "toggle";
+			if ( value === ( hidden ? "hide" : "show" ) ) {
+
+				// Pretend to be hidden if this is a "show" and
+				// there is still data from a stopped show/hide
+				if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
+					hidden = true;
+
+				// Ignore all other no-op show/hide data
+				} else {
+					continue;
+				}
+			}
+			orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
+		}
+	}
+
+	// Bail out if this is a no-op like .hide().hide()
+	propTween = !jQuery.isEmptyObject( props );
+	if ( !propTween && jQuery.isEmptyObject( orig ) ) {
+		return;
+	}
+
+	// Restrict "overflow" and "display" styles during box animations
+	if ( isBox && elem.nodeType === 1 ) {
+
+		// Support: IE <=9 - 11, Edge 12 - 15
+		// Record all 3 overflow attributes because IE does not infer the shorthand
+		// from identically-valued overflowX and overflowY and Edge just mirrors
+		// the overflowX value there.
+		opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
+
+		// Identify a display type, preferring old show/hide data over the CSS cascade
+		restoreDisplay = dataShow && dataShow.display;
+		if ( restoreDisplay == null ) {
+			restoreDisplay = dataPriv.get( elem, "display" );
+		}
+		display = jQuery.css( elem, "display" );
+		if ( display === "none" ) {
+			if ( restoreDisplay ) {
+				display = restoreDisplay;
+			} else {
+
+				// Get nonempty value(s) by temporarily forcing visibility
+				showHide( [ elem ], true );
+				restoreDisplay = elem.style.display || restoreDisplay;
+				display = jQuery.css( elem, "display" );
+				showHide( [ elem ] );
+			}
+		}
+
+		// Animate inline elements as inline-block
+		if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) {
+			if ( jQuery.css( elem, "float" ) === "none" ) {
+
+				// Restore the original display value at the end of pure show/hide animations
+				if ( !propTween ) {
+					anim.done( function() {
+						style.display = restoreDisplay;
+					} );
+					if ( restoreDisplay == null ) {
+						display = style.display;
+						restoreDisplay = display === "none" ? "" : display;
+					}
+				}
+				style.display = "inline-block";
+			}
+		}
+	}
+
+	if ( opts.overflow ) {
+		style.overflow = "hidden";
+		anim.always( function() {
+			style.overflow = opts.overflow[ 0 ];
+			style.overflowX = opts.overflow[ 1 ];
+			style.overflowY = opts.overflow[ 2 ];
+		} );
+	}
+
+	// Implement show/hide animations
+	propTween = false;
+	for ( prop in orig ) {
+
+		// General show/hide setup for this element animation
+		if ( !propTween ) {
+			if ( dataShow ) {
+				if ( "hidden" in dataShow ) {
+					hidden = dataShow.hidden;
+				}
+			} else {
+				dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } );
+			}
+
+			// Store hidden/visible for toggle so `.stop().toggle()` "reverses"
+			if ( toggle ) {
+				dataShow.hidden = !hidden;
+			}
+
+			// Show elements before animating them
+			if ( hidden ) {
+				showHide( [ elem ], true );
+			}
+
+			/* eslint-disable no-loop-func */
+
+			anim.done( function() {
+
+				/* eslint-enable no-loop-func */
+
+				// The final step of a "hide" animation is actually hiding the element
+				if ( !hidden ) {
+					showHide( [ elem ] );
+				}
+				dataPriv.remove( elem, "fxshow" );
+				for ( prop in orig ) {
+					jQuery.style( elem, prop, orig[ prop ] );
+				}
+			} );
+		}
+
+		// Per-property setup
+		propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
+		if ( !( prop in dataShow ) ) {
+			dataShow[ prop ] = propTween.start;
+			if ( hidden ) {
+				propTween.end = propTween.start;
+				propTween.start = 0;
+			}
+		}
+	}
+}
+
+function propFilter( props, specialEasing ) {
+	var index, name, easing, value, hooks;
+
+	// camelCase, specialEasing and expand cssHook pass
+	for ( index in props ) {
+		name = camelCase( index );
+		easing = specialEasing[ name ];
+		value = props[ index ];
+		if ( Array.isArray( value ) ) {
+			easing = value[ 1 ];
+			value = props[ index ] = value[ 0 ];
+		}
+
+		if ( index !== name ) {
+			props[ name ] = value;
+			delete props[ index ];
+		}
+
+		hooks = jQuery.cssHooks[ name ];
+		if ( hooks && "expand" in hooks ) {
+			value = hooks.expand( value );
+			delete props[ name ];
+
+			// Not quite $.extend, this won't overwrite existing keys.
+			// Reusing 'index' because we have the correct "name"
+			for ( index in value ) {
+				if ( !( index in props ) ) {
+					props[ index ] = value[ index ];
+					specialEasing[ index ] = easing;
+				}
+			}
+		} else {
+			specialEasing[ name ] = easing;
+		}
+	}
+}
+
+function Animation( elem, properties, options ) {
+	var result,
+		stopped,
+		index = 0,
+		length = Animation.prefilters.length,
+		deferred = jQuery.Deferred().always( function() {
+
+			// Don't match elem in the :animated selector
+			delete tick.elem;
+		} ),
+		tick = function() {
+			if ( stopped ) {
+				return false;
+			}
+			var currentTime = fxNow || createFxNow(),
+				remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
+
+				// Support: Android 2.3 only
+				// Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
+				temp = remaining / animation.duration || 0,
+				percent = 1 - temp,
+				index = 0,
+				length = animation.tweens.length;
+
+			for ( ; index < length; index++ ) {
+				animation.tweens[ index ].run( percent );
+			}
+
+			deferred.notifyWith( elem, [ animation, percent, remaining ] );
+
+			// If there's more to do, yield
+			if ( percent < 1 && length ) {
+				return remaining;
+			}
+
+			// If this was an empty animation, synthesize a final progress notification
+			if ( !length ) {
+				deferred.notifyWith( elem, [ animation, 1, 0 ] );
+			}
+
+			// Resolve the animation and report its conclusion
+			deferred.resolveWith( elem, [ animation ] );
+			return false;
+		},
+		animation = deferred.promise( {
+			elem: elem,
+			props: jQuery.extend( {}, properties ),
+			opts: jQuery.extend( true, {
+				specialEasing: {},
+				easing: jQuery.easing._default
+			}, options ),
+			originalProperties: properties,
+			originalOptions: options,
+			startTime: fxNow || createFxNow(),
+			duration: options.duration,
+			tweens: [],
+			createTween: function( prop, end ) {
+				var tween = jQuery.Tween( elem, animation.opts, prop, end,
+					animation.opts.specialEasing[ prop ] || animation.opts.easing );
+				animation.tweens.push( tween );
+				return tween;
+			},
+			stop: function( gotoEnd ) {
+				var index = 0,
+
+					// If we are going to the end, we want to run all the tweens
+					// otherwise we skip this part
+					length = gotoEnd ? animation.tweens.length : 0;
+				if ( stopped ) {
+					return this;
+				}
+				stopped = true;
+				for ( ; index < length; index++ ) {
+					animation.tweens[ index ].run( 1 );
+				}
+
+				// Resolve when we played the last frame; otherwise, reject
+				if ( gotoEnd ) {
+					deferred.notifyWith( elem, [ animation, 1, 0 ] );
+					deferred.resolveWith( elem, [ animation, gotoEnd ] );
+				} else {
+					deferred.rejectWith( elem, [ animation, gotoEnd ] );
+				}
+				return this;
+			}
+		} ),
+		props = animation.props;
+
+	propFilter( props, animation.opts.specialEasing );
+
+	for ( ; index < length; index++ ) {
+		result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts );
+		if ( result ) {
+			if ( isFunction( result.stop ) ) {
+				jQuery._queueHooks( animation.elem, animation.opts.queue ).stop =
+					result.stop.bind( result );
+			}
+			return result;
+		}
+	}
+
+	jQuery.map( props, createTween, animation );
+
+	if ( isFunction( animation.opts.start ) ) {
+		animation.opts.start.call( elem, animation );
+	}
+
+	// Attach callbacks from options
+	animation
+		.progress( animation.opts.progress )
+		.done( animation.opts.done, animation.opts.complete )
+		.fail( animation.opts.fail )
+		.always( animation.opts.always );
+
+	jQuery.fx.timer(
+		jQuery.extend( tick, {
+			elem: elem,
+			anim: animation,
+			queue: animation.opts.queue
+		} )
+	);
+
+	return animation;
+}
+
+jQuery.Animation = jQuery.extend( Animation, {
+
+	tweeners: {
+		"*": [ function( prop, value ) {
+			var tween = this.createTween( prop, value );
+			adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween );
+			return tween;
+		} ]
+	},
+
+	tweener: function( props, callback ) {
+		if ( isFunction( props ) ) {
+			callback = props;
+			props = [ "*" ];
+		} else {
+			props = props.match( rnothtmlwhite );
+		}
+
+		var prop,
+			index = 0,
+			length = props.length;
+
+		for ( ; index < length; index++ ) {
+			prop = props[ index ];
+			Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || [];
+			Animation.tweeners[ prop ].unshift( callback );
+		}
+	},
+
+	prefilters: [ defaultPrefilter ],
+
+	prefilter: function( callback, prepend ) {
+		if ( prepend ) {
+			Animation.prefilters.unshift( callback );
+		} else {
+			Animation.prefilters.push( callback );
+		}
+	}
+} );
+
+jQuery.speed = function( speed, easing, fn ) {
+	var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
+		complete: fn || !fn && easing ||
+			isFunction( speed ) && speed,
+		duration: speed,
+		easing: fn && easing || easing && !isFunction( easing ) && easing
+	};
+
+	// Go to the end state if fx are off
+	if ( jQuery.fx.off ) {
+		opt.duration = 0;
+
+	} else {
+		if ( typeof opt.duration !== "number" ) {
+			if ( opt.duration in jQuery.fx.speeds ) {
+				opt.duration = jQuery.fx.speeds[ opt.duration ];
+
+			} else {
+				opt.duration = jQuery.fx.speeds._default;
+			}
+		}
+	}
+
+	// Normalize opt.queue - true/undefined/null -> "fx"
+	if ( opt.queue == null || opt.queue === true ) {
+		opt.queue = "fx";
+	}
+
+	// Queueing
+	opt.old = opt.complete;
+
+	opt.complete = function() {
+		if ( isFunction( opt.old ) ) {
+			opt.old.call( this );
+		}
+
+		if ( opt.queue ) {
+			jQuery.dequeue( this, opt.queue );
+		}
+	};
+
+	return opt;
+};
+
+jQuery.fn.extend( {
+	fadeTo: function( speed, to, easing, callback ) {
+
+		// Show any hidden elements after setting opacity to 0
+		return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show()
+
+			// Animate to the value specified
+			.end().animate( { opacity: to }, speed, easing, callback );
+	},
+	animate: function( prop, speed, easing, callback ) {
+		var empty = jQuery.isEmptyObject( prop ),
+			optall = jQuery.speed( speed, easing, callback ),
+			doAnimation = function() {
+
+				// Operate on a copy of prop so per-property easing won't be lost
+				var anim = Animation( this, jQuery.extend( {}, prop ), optall );
+
+				// Empty animations, or finishing resolves immediately
+				if ( empty || dataPriv.get( this, "finish" ) ) {
+					anim.stop( true );
+				}
+			};
+
+		doAnimation.finish = doAnimation;
+
+		return empty || optall.queue === false ?
+			this.each( doAnimation ) :
+			this.queue( optall.queue, doAnimation );
+	},
+	stop: function( type, clearQueue, gotoEnd ) {
+		var stopQueue = function( hooks ) {
+			var stop = hooks.stop;
+			delete hooks.stop;
+			stop( gotoEnd );
+		};
+
+		if ( typeof type !== "string" ) {
+			gotoEnd = clearQueue;
+			clearQueue = type;
+			type = undefined;
+		}
+		if ( clearQueue ) {
+			this.queue( type || "fx", [] );
+		}
+
+		return this.each( function() {
+			var dequeue = true,
+				index = type != null && type + "queueHooks",
+				timers = jQuery.timers,
+				data = dataPriv.get( this );
+
+			if ( index ) {
+				if ( data[ index ] && data[ index ].stop ) {
+					stopQueue( data[ index ] );
+				}
+			} else {
+				for ( index in data ) {
+					if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
+						stopQueue( data[ index ] );
+					}
+				}
+			}
+
+			for ( index = timers.length; index--; ) {
+				if ( timers[ index ].elem === this &&
+					( type == null || timers[ index ].queue === type ) ) {
+
+					timers[ index ].anim.stop( gotoEnd );
+					dequeue = false;
+					timers.splice( index, 1 );
+				}
+			}
+
+			// Start the next in the queue if the last step wasn't forced.
+			// Timers currently will call their complete callbacks, which
+			// will dequeue but only if they were gotoEnd.
+			if ( dequeue || !gotoEnd ) {
+				jQuery.dequeue( this, type );
+			}
+		} );
+	},
+	finish: function( type ) {
+		if ( type !== false ) {
+			type = type || "fx";
+		}
+		return this.each( function() {
+			var index,
+				data = dataPriv.get( this ),
+				queue = data[ type + "queue" ],
+				hooks = data[ type + "queueHooks" ],
+				timers = jQuery.timers,
+				length = queue ? queue.length : 0;
+
+			// Enable finishing flag on private data
+			data.finish = true;
+
+			// Empty the queue first
+			jQuery.queue( this, type, [] );
+
+			if ( hooks && hooks.stop ) {
+				hooks.stop.call( this, true );
+			}
+
+			// Look for any active animations, and finish them
+			for ( index = timers.length; index--; ) {
+				if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
+					timers[ index ].anim.stop( true );
+					timers.splice( index, 1 );
+				}
+			}
+
+			// Look for any animations in the old queue and finish them
+			for ( index = 0; index < length; index++ ) {
+				if ( queue[ index ] && queue[ index ].finish ) {
+					queue[ index ].finish.call( this );
+				}
+			}
+
+			// Turn off finishing flag
+			delete data.finish;
+		} );
+	}
+} );
+
+jQuery.each( [ "toggle", "show", "hide" ], function( _i, name ) {
+	var cssFn = jQuery.fn[ name ];
+	jQuery.fn[ name ] = function( speed, easing, callback ) {
+		return speed == null || typeof speed === "boolean" ?
+			cssFn.apply( this, arguments ) :
+			this.animate( genFx( name, true ), speed, easing, callback );
+	};
+} );
+
+// Generate shortcuts for custom animations
+jQuery.each( {
+	slideDown: genFx( "show" ),
+	slideUp: genFx( "hide" ),
+	slideToggle: genFx( "toggle" ),
+	fadeIn: { opacity: "show" },
+	fadeOut: { opacity: "hide" },
+	fadeToggle: { opacity: "toggle" }
+}, function( name, props ) {
+	jQuery.fn[ name ] = function( speed, easing, callback ) {
+		return this.animate( props, speed, easing, callback );
+	};
+} );
+
+jQuery.timers = [];
+jQuery.fx.tick = function() {
+	var timer,
+		i = 0,
+		timers = jQuery.timers;
+
+	fxNow = Date.now();
+
+	for ( ; i < timers.length; i++ ) {
+		timer = timers[ i ];
+
+		// Run the timer and safely remove it when done (allowing for external removal)
+		if ( !timer() && timers[ i ] === timer ) {
+			timers.splice( i--, 1 );
+		}
+	}
+
+	if ( !timers.length ) {
+		jQuery.fx.stop();
+	}
+	fxNow = undefined;
+};
+
+jQuery.fx.timer = function( timer ) {
+	jQuery.timers.push( timer );
+	jQuery.fx.start();
+};
+
+jQuery.fx.interval = 13;
+jQuery.fx.start = function() {
+	if ( inProgress ) {
+		return;
+	}
+
+	inProgress = true;
+	schedule();
+};
+
+jQuery.fx.stop = function() {
+	inProgress = null;
+};
+
+jQuery.fx.speeds = {
+	slow: 600,
+	fast: 200,
+
+	// Default speed
+	_default: 400
+};
+
+
+// Based off of the plugin by Clint Helfers, with permission.
+// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/
+jQuery.fn.delay = function( time, type ) {
+	time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
+	type = type || "fx";
+
+	return this.queue( type, function( next, hooks ) {
+		var timeout = window.setTimeout( next, time );
+		hooks.stop = function() {
+			window.clearTimeout( timeout );
+		};
+	} );
+};
+
+
+( function() {
+	var input = document.createElement( "input" ),
+		select = document.createElement( "select" ),
+		opt = select.appendChild( document.createElement( "option" ) );
+
+	input.type = "checkbox";
+
+	// Support: Android <=4.3 only
+	// Default value for a checkbox should be "on"
+	support.checkOn = input.value !== "";
+
+	// Support: IE <=11 only
+	// Must access selectedIndex to make default options select
+	support.optSelected = opt.selected;
+
+	// Support: IE <=11 only
+	// An input loses its value after becoming a radio
+	input = document.createElement( "input" );
+	input.value = "t";
+	input.type = "radio";
+	support.radioValue = input.value === "t";
+} )();
+
+
+var boolHook,
+	attrHandle = jQuery.expr.attrHandle;
+
+jQuery.fn.extend( {
+	attr: function( name, value ) {
+		return access( this, jQuery.attr, name, value, arguments.length > 1 );
+	},
+
+	removeAttr: function( name ) {
+		return this.each( function() {
+			jQuery.removeAttr( this, name );
+		} );
+	}
+} );
+
+jQuery.extend( {
+	attr: function( elem, name, value ) {
+		var ret, hooks,
+			nType = elem.nodeType;
+
+		// Don't get/set attributes on text, comment and attribute nodes
+		if ( nType === 3 || nType === 8 || nType === 2 ) {
+			return;
+		}
+
+		// Fallback to prop when attributes are not supported
+		if ( typeof elem.getAttribute === "undefined" ) {
+			return jQuery.prop( elem, name, value );
+		}
+
+		// Attribute hooks are determined by the lowercase version
+		// Grab necessary hook if one is defined
+		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
+			hooks = jQuery.attrHooks[ name.toLowerCase() ] ||
+				( jQuery.expr.match.bool.test( name ) ? boolHook : undefined );
+		}
+
+		if ( value !== undefined ) {
+			if ( value === null ) {
+				jQuery.removeAttr( elem, name );
+				return;
+			}
+
+			if ( hooks && "set" in hooks &&
+				( ret = hooks.set( elem, value, name ) ) !== undefined ) {
+				return ret;
+			}
+
+			elem.setAttribute( name, value + "" );
+			return value;
+		}
+
+		if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
+			return ret;
+		}
+
+		ret = jQuery.find.attr( elem, name );
+
+		// Non-existent attributes return null, we normalize to undefined
+		return ret == null ? undefined : ret;
+	},
+
+	attrHooks: {
+		type: {
+			set: function( elem, value ) {
+				if ( !support.radioValue && value === "radio" &&
+					nodeName( elem, "input" ) ) {
+					var val = elem.value;
+					elem.setAttribute( "type", value );
+					if ( val ) {
+						elem.value = val;
+					}
+					return value;
+				}
+			}
+		}
+	},
+
+	removeAttr: function( elem, value ) {
+		var name,
+			i = 0,
+
+			// Attribute names can contain non-HTML whitespace characters
+			// https://html.spec.whatwg.org/multipage/syntax.html#attributes-2
+			attrNames = value && value.match( rnothtmlwhite );
+
+		if ( attrNames && elem.nodeType === 1 ) {
+			while ( ( name = attrNames[ i++ ] ) ) {
+				elem.removeAttribute( name );
+			}
+		}
+	}
+} );
+
+// Hooks for boolean attributes
+boolHook = {
+	set: function( elem, value, name ) {
+		if ( value === false ) {
+
+			// Remove boolean attributes when set to false
+			jQuery.removeAttr( elem, name );
+		} else {
+			elem.setAttribute( name, name );
+		}
+		return name;
+	}
+};
+
+jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( _i, name ) {
+	var getter = attrHandle[ name ] || jQuery.find.attr;
+
+	attrHandle[ name ] = function( elem, name, isXML ) {
+		var ret, handle,
+			lowercaseName = name.toLowerCase();
+
+		if ( !isXML ) {
+
+			// Avoid an infinite loop by temporarily removing this function from the getter
+			handle = attrHandle[ lowercaseName ];
+			attrHandle[ lowercaseName ] = ret;
+			ret = getter( elem, name, isXML ) != null ?
+				lowercaseName :
+				null;
+			attrHandle[ lowercaseName ] = handle;
+		}
+		return ret;
+	};
+} );
+
+
+
+
+var rfocusable = /^(?:input|select|textarea|button)$/i,
+	rclickable = /^(?:a|area)$/i;
+
+jQuery.fn.extend( {
+	prop: function( name, value ) {
+		return access( this, jQuery.prop, name, value, arguments.length > 1 );
+	},
+
+	removeProp: function( name ) {
+		return this.each( function() {
+			delete this[ jQuery.propFix[ name ] || name ];
+		} );
+	}
+} );
+
+jQuery.extend( {
+	prop: function( elem, name, value ) {
+		var ret, hooks,
+			nType = elem.nodeType;
+
+		// Don't get/set properties on text, comment and attribute nodes
+		if ( nType === 3 || nType === 8 || nType === 2 ) {
+			return;
+		}
+
+		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
+
+			// Fix name and attach hooks
+			name = jQuery.propFix[ name ] || name;
+			hooks = jQuery.propHooks[ name ];
+		}
+
+		if ( value !== undefined ) {
+			if ( hooks && "set" in hooks &&
+				( ret = hooks.set( elem, value, name ) ) !== undefined ) {
+				return ret;
+			}
+
+			return ( elem[ name ] = value );
+		}
+
+		if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
+			return ret;
+		}
+
+		return elem[ name ];
+	},
+
+	propHooks: {
+		tabIndex: {
+			get: function( elem ) {
+
+				// Support: IE <=9 - 11 only
+				// elem.tabIndex doesn't always return the
+				// correct value when it hasn't been explicitly set
+				// https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
+				// Use proper attribute retrieval(#12072)
+				var tabindex = jQuery.find.attr( elem, "tabindex" );
+
+				if ( tabindex ) {
+					return parseInt( tabindex, 10 );
+				}
+
+				if (
+					rfocusable.test( elem.nodeName ) ||
+					rclickable.test( elem.nodeName ) &&
+					elem.href
+				) {
+					return 0;
+				}
+
+				return -1;
+			}
+		}
+	},
+
+	propFix: {
+		"for": "htmlFor",
+		"class": "className"
+	}
+} );
+
+// Support: IE <=11 only
+// Accessing the selectedIndex property
+// forces the browser to respect setting selected
+// on the option
+// The getter ensures a default option is selected
+// when in an optgroup
+// eslint rule "no-unused-expressions" is disabled for this code
+// since it considers such accessions noop
+if ( !support.optSelected ) {
+	jQuery.propHooks.selected = {
+		get: function( elem ) {
+
+			/* eslint no-unused-expressions: "off" */
+
+			var parent = elem.parentNode;
+			if ( parent && parent.parentNode ) {
+				parent.parentNode.selectedIndex;
+			}
+			return null;
+		},
+		set: function( elem ) {
+
+			/* eslint no-unused-expressions: "off" */
+
+			var parent = elem.parentNode;
+			if ( parent ) {
+				parent.selectedIndex;
+
+				if ( parent.parentNode ) {
+					parent.parentNode.selectedIndex;
+				}
+			}
+		}
+	};
+}
+
+jQuery.each( [
+	"tabIndex",
+	"readOnly",
+	"maxLength",
+	"cellSpacing",
+	"cellPadding",
+	"rowSpan",
+	"colSpan",
+	"useMap",
+	"frameBorder",
+	"contentEditable"
+], function() {
+	jQuery.propFix[ this.toLowerCase() ] = this;
+} );
+
+
+
+
+	// Strip and collapse whitespace according to HTML spec
+	// https://infra.spec.whatwg.org/#strip-and-collapse-ascii-whitespace
+	function stripAndCollapse( value ) {
+		var tokens = value.match( rnothtmlwhite ) || [];
+		return tokens.join( " " );
+	}
+
+
+function getClass( elem ) {
+	return elem.getAttribute && elem.getAttribute( "class" ) || "";
+}
+
+function classesToArray( value ) {
+	if ( Array.isArray( value ) ) {
+		return value;
+	}
+	if ( typeof value === "string" ) {
+		return value.match( rnothtmlwhite ) || [];
+	}
+	return [];
+}
+
+jQuery.fn.extend( {
+	addClass: function( value ) {
+		var classes, elem, cur, curValue, clazz, j, finalValue,
+			i = 0;
+
+		if ( isFunction( value ) ) {
+			return this.each( function( j ) {
+				jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
+			} );
+		}
+
+		classes = classesToArray( value );
+
+		if ( classes.length ) {
+			while ( ( elem = this[ i++ ] ) ) {
+				curValue = getClass( elem );
+				cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
+
+				if ( cur ) {
+					j = 0;
+					while ( ( clazz = classes[ j++ ] ) ) {
+						if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
+							cur += clazz + " ";
+						}
+					}
+
+					// Only assign if different to avoid unneeded rendering.
+					finalValue = stripAndCollapse( cur );
+					if ( curValue !== finalValue ) {
+						elem.setAttribute( "class", finalValue );
+					}
+				}
+			}
+		}
+
+		return this;
+	},
+
+	removeClass: function( value ) {
+		var classes, elem, cur, curValue, clazz, j, finalValue,
+			i = 0;
+
+		if ( isFunction( value ) ) {
+			return this.each( function( j ) {
+				jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
+			} );
+		}
+
+		if ( !arguments.length ) {
+			return this.attr( "class", "" );
+		}
+
+		classes = classesToArray( value );
+
+		if ( classes.length ) {
+			while ( ( elem = this[ i++ ] ) ) {
+				curValue = getClass( elem );
+
+				// This expression is here for better compressibility (see addClass)
+				cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
+
+				if ( cur ) {
+					j = 0;
+					while ( ( clazz = classes[ j++ ] ) ) {
+
+						// Remove *all* instances
+						while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
+							cur = cur.replace( " " + clazz + " ", " " );
+						}
+					}
+
+					// Only assign if different to avoid unneeded rendering.
+					finalValue = stripAndCollapse( cur );
+					if ( curValue !== finalValue ) {
+						elem.setAttribute( "class", finalValue );
+					}
+				}
+			}
+		}
+
+		return this;
+	},
+
+	toggleClass: function( value, stateVal ) {
+		var type = typeof value,
+			isValidValue = type === "string" || Array.isArray( value );
+
+		if ( typeof stateVal === "boolean" && isValidValue ) {
+			return stateVal ? this.addClass( value ) : this.removeClass( value );
+		}
+
+		if ( isFunction( value ) ) {
+			return this.each( function( i ) {
+				jQuery( this ).toggleClass(
+					value.call( this, i, getClass( this ), stateVal ),
+					stateVal
+				);
+			} );
+		}
+
+		return this.each( function() {
+			var className, i, self, classNames;
+
+			if ( isValidValue ) {
+
+				// Toggle individual class names
+				i = 0;
+				self = jQuery( this );
+				classNames = classesToArray( value );
+
+				while ( ( className = classNames[ i++ ] ) ) {
+
+					// Check each className given, space separated list
+					if ( self.hasClass( className ) ) {
+						self.removeClass( className );
+					} else {
+						self.addClass( className );
+					}
+				}
+
+			// Toggle whole class name
+			} else if ( value === undefined || type === "boolean" ) {
+				className = getClass( this );
+				if ( className ) {
+
+					// Store className if set
+					dataPriv.set( this, "__className__", className );
+				}
+
+				// If the element has a class name or if we're passed `false`,
+				// then remove the whole classname (if there was one, the above saved it).
+				// Otherwise bring back whatever was previously saved (if anything),
+				// falling back to the empty string if nothing was stored.
+				if ( this.setAttribute ) {
+					this.setAttribute( "class",
+						className || value === false ?
+							"" :
+							dataPriv.get( this, "__className__" ) || ""
+					);
+				}
+			}
+		} );
+	},
+
+	hasClass: function( selector ) {
+		var className, elem,
+			i = 0;
+
+		className = " " + selector + " ";
+		while ( ( elem = this[ i++ ] ) ) {
+			if ( elem.nodeType === 1 &&
+				( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) {
+				return true;
+			}
+		}
+
+		return false;
+	}
+} );
+
+
+
+
+var rreturn = /\r/g;
+
+jQuery.fn.extend( {
+	val: function( value ) {
+		var hooks, ret, valueIsFunction,
+			elem = this[ 0 ];
+
+		if ( !arguments.length ) {
+			if ( elem ) {
+				hooks = jQuery.valHooks[ elem.type ] ||
+					jQuery.valHooks[ elem.nodeName.toLowerCase() ];
+
+				if ( hooks &&
+					"get" in hooks &&
+					( ret = hooks.get( elem, "value" ) ) !== undefined
+				) {
+					return ret;
+				}
+
+				ret = elem.value;
+
+				// Handle most common string cases
+				if ( typeof ret === "string" ) {
+					return ret.replace( rreturn, "" );
+				}
+
+				// Handle cases where value is null/undef or number
+				return ret == null ? "" : ret;
+			}
+
+			return;
+		}
+
+		valueIsFunction = isFunction( value );
+
+		return this.each( function( i ) {
+			var val;
+
+			if ( this.nodeType !== 1 ) {
+				return;
+			}
+
+			if ( valueIsFunction ) {
+				val = value.call( this, i, jQuery( this ).val() );
+			} else {
+				val = value;
+			}
+
+			// Treat null/undefined as ""; convert numbers to string
+			if ( val == null ) {
+				val = "";
+
+			} else if ( typeof val === "number" ) {
+				val += "";
+
+			} else if ( Array.isArray( val ) ) {
+				val = jQuery.map( val, function( value ) {
+					return value == null ? "" : value + "";
+				} );
+			}
+
+			hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
+
+			// If set returns undefined, fall back to normal setting
+			if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) {
+				this.value = val;
+			}
+		} );
+	}
+} );
+
+jQuery.extend( {
+	valHooks: {
+		option: {
+			get: function( elem ) {
+
+				var val = jQuery.find.attr( elem, "value" );
+				return val != null ?
+					val :
+
+					// Support: IE <=10 - 11 only
+					// option.text throws exceptions (#14686, #14858)
+					// Strip and collapse whitespace
+					// https://html.spec.whatwg.org/#strip-and-collapse-whitespace
+					stripAndCollapse( jQuery.text( elem ) );
+			}
+		},
+		select: {
+			get: function( elem ) {
+				var value, option, i,
+					options = elem.options,
+					index = elem.selectedIndex,
+					one = elem.type === "select-one",
+					values = one ? null : [],
+					max = one ? index + 1 : options.length;
+
+				if ( index < 0 ) {
+					i = max;
+
+				} else {
+					i = one ? index : 0;
+				}
+
+				// Loop through all the selected options
+				for ( ; i < max; i++ ) {
+					option = options[ i ];
+
+					// Support: IE <=9 only
+					// IE8-9 doesn't update selected after form reset (#2551)
+					if ( ( option.selected || i === index ) &&
+
+							// Don't return options that are disabled or in a disabled optgroup
+							!option.disabled &&
+							( !option.parentNode.disabled ||
+								!nodeName( option.parentNode, "optgroup" ) ) ) {
+
+						// Get the specific value for the option
+						value = jQuery( option ).val();
+
+						// We don't need an array for one selects
+						if ( one ) {
+							return value;
+						}
+
+						// Multi-Selects return an array
+						values.push( value );
+					}
+				}
+
+				return values;
+			},
+
+			set: function( elem, value ) {
+				var optionSet, option,
+					options = elem.options,
+					values = jQuery.makeArray( value ),
+					i = options.length;
+
+				while ( i-- ) {
+					option = options[ i ];
+
+					/* eslint-disable no-cond-assign */
+
+					if ( option.selected =
+						jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1
+					) {
+						optionSet = true;
+					}
+
+					/* eslint-enable no-cond-assign */
+				}
+
+				// Force browsers to behave consistently when non-matching value is set
+				if ( !optionSet ) {
+					elem.selectedIndex = -1;
+				}
+				return values;
+			}
+		}
+	}
+} );
+
+// Radios and checkboxes getter/setter
+jQuery.each( [ "radio", "checkbox" ], function() {
+	jQuery.valHooks[ this ] = {
+		set: function( elem, value ) {
+			if ( Array.isArray( value ) ) {
+				return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );
+			}
+		}
+	};
+	if ( !support.checkOn ) {
+		jQuery.valHooks[ this ].get = function( elem ) {
+			return elem.getAttribute( "value" ) === null ? "on" : elem.value;
+		};
+	}
+} );
+
+
+
+
+// Return jQuery for attributes-only inclusion
+
+
+support.focusin = "onfocusin" in window;
+
+
+var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
+	stopPropagationCallback = function( e ) {
+		e.stopPropagation();
+	};
+
+jQuery.extend( jQuery.event, {
+
+	trigger: function( event, data, elem, onlyHandlers ) {
+
+		var i, cur, tmp, bubbleType, ontype, handle, special, lastElement,
+			eventPath = [ elem || document ],
+			type = hasOwn.call( event, "type" ) ? event.type : event,
+			namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : [];
+
+		cur = lastElement = tmp = elem = elem || document;
+
+		// Don't do events on text and comment nodes
+		if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
+			return;
+		}
+
+		// focus/blur morphs to focusin/out; ensure we're not firing them right now
+		if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
+			return;
+		}
+
+		if ( type.indexOf( "." ) > -1 ) {
+
+			// Namespaced trigger; create a regexp to match event type in handle()
+			namespaces = type.split( "." );
+			type = namespaces.shift();
+			namespaces.sort();
+		}
+		ontype = type.indexOf( ":" ) < 0 && "on" + type;
+
+		// Caller can pass in a jQuery.Event object, Object, or just an event type string
+		event = event[ jQuery.expando ] ?
+			event :
+			new jQuery.Event( type, typeof event === "object" && event );
+
+		// Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
+		event.isTrigger = onlyHandlers ? 2 : 3;
+		event.namespace = namespaces.join( "." );
+		event.rnamespace = event.namespace ?
+			new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) :
+			null;
+
+		// Clean up the event in case it is being reused
+		event.result = undefined;
+		if ( !event.target ) {
+			event.target = elem;
+		}
+
+		// Clone any incoming data and prepend the event, creating the handler arg list
+		data = data == null ?
+			[ event ] :
+			jQuery.makeArray( data, [ event ] );
+
+		// Allow special events to draw outside the lines
+		special = jQuery.event.special[ type ] || {};
+		if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
+			return;
+		}
+
+		// Determine event propagation path in advance, per W3C events spec (#9951)
+		// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
+		if ( !onlyHandlers && !special.noBubble && !isWindow( elem ) ) {
+
+			bubbleType = special.delegateType || type;
+			if ( !rfocusMorph.test( bubbleType + type ) ) {
+				cur = cur.parentNode;
+			}
+			for ( ; cur; cur = cur.parentNode ) {
+				eventPath.push( cur );
+				tmp = cur;
+			}
+
+			// Only add window if we got to document (e.g., not plain obj or detached DOM)
+			if ( tmp === ( elem.ownerDocument || document ) ) {
+				eventPath.push( tmp.defaultView || tmp.parentWindow || window );
+			}
+		}
+
+		// Fire handlers on the event path
+		i = 0;
+		while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) {
+			lastElement = cur;
+			event.type = i > 1 ?
+				bubbleType :
+				special.bindType || type;
+
+			// jQuery handler
+			handle = ( dataPriv.get( cur, "events" ) || Object.create( null ) )[ event.type ] &&
+				dataPriv.get( cur, "handle" );
+			if ( handle ) {
+				handle.apply( cur, data );
+			}
+
+			// Native handler
+			handle = ontype && cur[ ontype ];
+			if ( handle && handle.apply && acceptData( cur ) ) {
+				event.result = handle.apply( cur, data );
+				if ( event.result === false ) {
+					event.preventDefault();
+				}
+			}
+		}
+		event.type = type;
+
+		// If nobody prevented the default action, do it now
+		if ( !onlyHandlers && !event.isDefaultPrevented() ) {
+
+			if ( ( !special._default ||
+				special._default.apply( eventPath.pop(), data ) === false ) &&
+				acceptData( elem ) ) {
+
+				// Call a native DOM method on the target with the same name as the event.
+				// Don't do default actions on window, that's where global variables be (#6170)
+				if ( ontype && isFunction( elem[ type ] ) && !isWindow( elem ) ) {
+
+					// Don't re-trigger an onFOO event when we call its FOO() method
+					tmp = elem[ ontype ];
+
+					if ( tmp ) {
+						elem[ ontype ] = null;
+					}
+
+					// Prevent re-triggering of the same event, since we already bubbled it above
+					jQuery.event.triggered = type;
+
+					if ( event.isPropagationStopped() ) {
+						lastElement.addEventListener( type, stopPropagationCallback );
+					}
+
+					elem[ type ]();
+
+					if ( event.isPropagationStopped() ) {
+						lastElement.removeEventListener( type, stopPropagationCallback );
+					}
+
+					jQuery.event.triggered = undefined;
+
+					if ( tmp ) {
+						elem[ ontype ] = tmp;
+					}
+				}
+			}
+		}
+
+		return event.result;
+	},
+
+	// Piggyback on a donor event to simulate a different one
+	// Used only for `focus(in | out)` events
+	simulate: function( type, elem, event ) {
+		var e = jQuery.extend(
+			new jQuery.Event(),
+			event,
+			{
+				type: type,
+				isSimulated: true
+			}
+		);
+
+		jQuery.event.trigger( e, null, elem );
+	}
+
+} );
+
+jQuery.fn.extend( {
+
+	trigger: function( type, data ) {
+		return this.each( function() {
+			jQuery.event.trigger( type, data, this );
+		} );
+	},
+	triggerHandler: function( type, data ) {
+		var elem = this[ 0 ];
+		if ( elem ) {
+			return jQuery.event.trigger( type, data, elem, true );
+		}
+	}
+} );
+
+
+// Support: Firefox <=44
+// Firefox doesn't have focus(in | out) events
+// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
+//
+// Support: Chrome <=48 - 49, Safari <=9.0 - 9.1
+// focus(in | out) events fire after focus & blur events,
+// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
+// Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857
+if ( !support.focusin ) {
+	jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {
+
+		// Attach a single capturing handler on the document while someone wants focusin/focusout
+		var handler = function( event ) {
+			jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );
+		};
+
+		jQuery.event.special[ fix ] = {
+			setup: function() {
+
+				// Handle: regular nodes (via `this.ownerDocument`), window
+				// (via `this.document`) & document (via `this`).
+				var doc = this.ownerDocument || this.document || this,
+					attaches = dataPriv.access( doc, fix );
+
+				if ( !attaches ) {
+					doc.addEventListener( orig, handler, true );
+				}
+				dataPriv.access( doc, fix, ( attaches || 0 ) + 1 );
+			},
+			teardown: function() {
+				var doc = this.ownerDocument || this.document || this,
+					attaches = dataPriv.access( doc, fix ) - 1;
+
+				if ( !attaches ) {
+					doc.removeEventListener( orig, handler, true );
+					dataPriv.remove( doc, fix );
+
+				} else {
+					dataPriv.access( doc, fix, attaches );
+				}
+			}
+		};
+	} );
+}
+var location = window.location;
+
+var nonce = { guid: Date.now() };
+
+var rquery = ( /\?/ );
+
+
+
+// Cross-browser xml parsing
+jQuery.parseXML = function( data ) {
+	var xml, parserErrorElem;
+	if ( !data || typeof data !== "string" ) {
+		return null;
+	}
+
+	// Support: IE 9 - 11 only
+	// IE throws on parseFromString with invalid input.
+	try {
+		xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" );
+	} catch ( e ) {}
+
+	parserErrorElem = xml && xml.getElementsByTagName( "parsererror" )[ 0 ];
+	if ( !xml || parserErrorElem ) {
+		jQuery.error( "Invalid XML: " + (
+			parserErrorElem ?
+				jQuery.map( parserErrorElem.childNodes, function( el ) {
+					return el.textContent;
+				} ).join( "\n" ) :
+				data
+		) );
+	}
+	return xml;
+};
+
+
+var
+	rbracket = /\[\]$/,
+	rCRLF = /\r?\n/g,
+	rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
+	rsubmittable = /^(?:input|select|textarea|keygen)/i;
+
+function buildParams( prefix, obj, traditional, add ) {
+	var name;
+
+	if ( Array.isArray( obj ) ) {
+
+		// Serialize array item.
+		jQuery.each( obj, function( i, v ) {
+			if ( traditional || rbracket.test( prefix ) ) {
+
+				// Treat each array item as a scalar.
+				add( prefix, v );
+
+			} else {
+
+				// Item is non-scalar (array or object), encode its numeric index.
+				buildParams(
+					prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]",
+					v,
+					traditional,
+					add
+				);
+			}
+		} );
+
+	} else if ( !traditional && toType( obj ) === "object" ) {
+
+		// Serialize object item.
+		for ( name in obj ) {
+			buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
+		}
+
+	} else {
+
+		// Serialize scalar item.
+		add( prefix, obj );
+	}
+}
+
+// Serialize an array of form elements or a set of
+// key/values into a query string
+jQuery.param = function( a, traditional ) {
+	var prefix,
+		s = [],
+		add = function( key, valueOrFunction ) {
+
+			// If value is a function, invoke it and use its return value
+			var value = isFunction( valueOrFunction ) ?
+				valueOrFunction() :
+				valueOrFunction;
+
+			s[ s.length ] = encodeURIComponent( key ) + "=" +
+				encodeURIComponent( value == null ? "" : value );
+		};
+
+	if ( a == null ) {
+		return "";
+	}
+
+	// If an array was passed in, assume that it is an array of form elements.
+	if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
+
+		// Serialize the form elements
+		jQuery.each( a, function() {
+			add( this.name, this.value );
+		} );
+
+	} else {
+
+		// If traditional, encode the "old" way (the way 1.3.2 or older
+		// did it), otherwise encode params recursively.
+		for ( prefix in a ) {
+			buildParams( prefix, a[ prefix ], traditional, add );
+		}
+	}
+
+	// Return the resulting serialization
+	return s.join( "&" );
+};
+
+jQuery.fn.extend( {
+	serialize: function() {
+		return jQuery.param( this.serializeArray() );
+	},
+	serializeArray: function() {
+		return this.map( function() {
+
+			// Can add propHook for "elements" to filter or add form elements
+			var elements = jQuery.prop( this, "elements" );
+			return elements ? jQuery.makeArray( elements ) : this;
+		} ).filter( function() {
+			var type = this.type;
+
+			// Use .is( ":disabled" ) so that fieldset[disabled] works
+			return this.name && !jQuery( this ).is( ":disabled" ) &&
+				rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
+				( this.checked || !rcheckableType.test( type ) );
+		} ).map( function( _i, elem ) {
+			var val = jQuery( this ).val();
+
+			if ( val == null ) {
+				return null;
+			}
+
+			if ( Array.isArray( val ) ) {
+				return jQuery.map( val, function( val ) {
+					return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
+				} );
+			}
+
+			return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
+		} ).get();
+	}
+} );
+
+
+var
+	r20 = /%20/g,
+	rhash = /#.*$/,
+	rantiCache = /([?&])_=[^&]*/,
+	rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,
+
+	// #7653, #8125, #8152: local protocol detection
+	rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
+	rnoContent = /^(?:GET|HEAD)$/,
+	rprotocol = /^\/\//,
+
+	/* Prefilters
+	 * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
+	 * 2) These are called:
+	 *    - BEFORE asking for a transport
+	 *    - AFTER param serialization (s.data is a string if s.processData is true)
+	 * 3) key is the dataType
+	 * 4) the catchall symbol "*" can be used
+	 * 5) execution will start with transport dataType and THEN continue down to "*" if needed
+	 */
+	prefilters = {},
+
+	/* Transports bindings
+	 * 1) key is the dataType
+	 * 2) the catchall symbol "*" can be used
+	 * 3) selection will start with transport dataType and THEN go to "*" if needed
+	 */
+	transports = {},
+
+	// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
+	allTypes = "*/".concat( "*" ),
+
+	// Anchor tag for parsing the document origin
+	originAnchor = document.createElement( "a" );
+
+originAnchor.href = location.href;
+
+// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
+function addToPrefiltersOrTransports( structure ) {
+
+	// dataTypeExpression is optional and defaults to "*"
+	return function( dataTypeExpression, func ) {
+
+		if ( typeof dataTypeExpression !== "string" ) {
+			func = dataTypeExpression;
+			dataTypeExpression = "*";
+		}
+
+		var dataType,
+			i = 0,
+			dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || [];
+
+		if ( isFunction( func ) ) {
+
+			// For each dataType in the dataTypeExpression
+			while ( ( dataType = dataTypes[ i++ ] ) ) {
+
+				// Prepend if requested
+				if ( dataType[ 0 ] === "+" ) {
+					dataType = dataType.slice( 1 ) || "*";
+					( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );
+
+				// Otherwise append
+				} else {
+					( structure[ dataType ] = structure[ dataType ] || [] ).push( func );
+				}
+			}
+		}
+	};
+}
+
+// Base inspection function for prefilters and transports
+function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
+
+	var inspected = {},
+		seekingTransport = ( structure === transports );
+
+	function inspect( dataType ) {
+		var selected;
+		inspected[ dataType ] = true;
+		jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
+			var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
+			if ( typeof dataTypeOrTransport === "string" &&
+				!seekingTransport && !inspected[ dataTypeOrTransport ] ) {
+
+				options.dataTypes.unshift( dataTypeOrTransport );
+				inspect( dataTypeOrTransport );
+				return false;
+			} else if ( seekingTransport ) {
+				return !( selected = dataTypeOrTransport );
+			}
+		} );
+		return selected;
+	}
+
+	return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
+}
+
+// A special extend for ajax options
+// that takes "flat" options (not to be deep extended)
+// Fixes #9887
+function ajaxExtend( target, src ) {
+	var key, deep,
+		flatOptions = jQuery.ajaxSettings.flatOptions || {};
+
+	for ( key in src ) {
+		if ( src[ key ] !== undefined ) {
+			( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
+		}
+	}
+	if ( deep ) {
+		jQuery.extend( true, target, deep );
+	}
+
+	return target;
+}
+
+/* Handles responses to an ajax request:
+ * - finds the right dataType (mediates between content-type and expected dataType)
+ * - returns the corresponding response
+ */
+function ajaxHandleResponses( s, jqXHR, responses ) {
+
+	var ct, type, finalDataType, firstDataType,
+		contents = s.contents,
+		dataTypes = s.dataTypes;
+
+	// Remove auto dataType and get content-type in the process
+	while ( dataTypes[ 0 ] === "*" ) {
+		dataTypes.shift();
+		if ( ct === undefined ) {
+			ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" );
+		}
+	}
+
+	// Check if we're dealing with a known content-type
+	if ( ct ) {
+		for ( type in contents ) {
+			if ( contents[ type ] && contents[ type ].test( ct ) ) {
+				dataTypes.unshift( type );
+				break;
+			}
+		}
+	}
+
+	// Check to see if we have a response for the expected dataType
+	if ( dataTypes[ 0 ] in responses ) {
+		finalDataType = dataTypes[ 0 ];
+	} else {
+
+		// Try convertible dataTypes
+		for ( type in responses ) {
+			if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) {
+				finalDataType = type;
+				break;
+			}
+			if ( !firstDataType ) {
+				firstDataType = type;
+			}
+		}
+
+		// Or just use first one
+		finalDataType = finalDataType || firstDataType;
+	}
+
+	// If we found a dataType
+	// We add the dataType to the list if needed
+	// and return the corresponding response
+	if ( finalDataType ) {
+		if ( finalDataType !== dataTypes[ 0 ] ) {
+			dataTypes.unshift( finalDataType );
+		}
+		return responses[ finalDataType ];
+	}
+}
+
+/* Chain conversions given the request and the original response
+ * Also sets the responseXXX fields on the jqXHR instance
+ */
+function ajaxConvert( s, response, jqXHR, isSuccess ) {
+	var conv2, current, conv, tmp, prev,
+		converters = {},
+
+		// Work with a copy of dataTypes in case we need to modify it for conversion
+		dataTypes = s.dataTypes.slice();
+
+	// Create converters map with lowercased keys
+	if ( dataTypes[ 1 ] ) {
+		for ( conv in s.converters ) {
+			converters[ conv.toLowerCase() ] = s.converters[ conv ];
+		}
+	}
+
+	current = dataTypes.shift();
+
+	// Convert to each sequential dataType
+	while ( current ) {
+
+		if ( s.responseFields[ current ] ) {
+			jqXHR[ s.responseFields[ current ] ] = response;
+		}
+
+		// Apply the dataFilter if provided
+		if ( !prev && isSuccess && s.dataFilter ) {
+			response = s.dataFilter( response, s.dataType );
+		}
+
+		prev = current;
+		current = dataTypes.shift();
+
+		if ( current ) {
+
+			// There's only work to do if current dataType is non-auto
+			if ( current === "*" ) {
+
+				current = prev;
+
+			// Convert response if prev dataType is non-auto and differs from current
+			} else if ( prev !== "*" && prev !== current ) {
+
+				// Seek a direct converter
+				conv = converters[ prev + " " + current ] || converters[ "* " + current ];
+
+				// If none found, seek a pair
+				if ( !conv ) {
+					for ( conv2 in converters ) {
+
+						// If conv2 outputs current
+						tmp = conv2.split( " " );
+						if ( tmp[ 1 ] === current ) {
+
+							// If prev can be converted to accepted input
+							conv = converters[ prev + " " + tmp[ 0 ] ] ||
+								converters[ "* " + tmp[ 0 ] ];
+							if ( conv ) {
+
+								// Condense equivalence converters
+								if ( conv === true ) {
+									conv = converters[ conv2 ];
+
+								// Otherwise, insert the intermediate dataType
+								} else if ( converters[ conv2 ] !== true ) {
+									current = tmp[ 0 ];
+									dataTypes.unshift( tmp[ 1 ] );
+								}
+								break;
+							}
+						}
+					}
+				}
+
+				// Apply converter (if not an equivalence)
+				if ( conv !== true ) {
+
+					// Unless errors are allowed to bubble, catch and return them
+					if ( conv && s.throws ) {
+						response = conv( response );
+					} else {
+						try {
+							response = conv( response );
+						} catch ( e ) {
+							return {
+								state: "parsererror",
+								error: conv ? e : "No conversion from " + prev + " to " + current
+							};
+						}
+					}
+				}
+			}
+		}
+	}
+
+	return { state: "success", data: response };
+}
+
+jQuery.extend( {
+
+	// Counter for holding the number of active queries
+	active: 0,
+
+	// Last-Modified header cache for next request
+	lastModified: {},
+	etag: {},
+
+	ajaxSettings: {
+		url: location.href,
+		type: "GET",
+		isLocal: rlocalProtocol.test( location.protocol ),
+		global: true,
+		processData: true,
+		async: true,
+		contentType: "application/x-www-form-urlencoded; charset=UTF-8",
+
+		/*
+		timeout: 0,
+		data: null,
+		dataType: null,
+		username: null,
+		password: null,
+		cache: null,
+		throws: false,
+		traditional: false,
+		headers: {},
+		*/
+
+		accepts: {
+			"*": allTypes,
+			text: "text/plain",
+			html: "text/html",
+			xml: "application/xml, text/xml",
+			json: "application/json, text/javascript"
+		},
+
+		contents: {
+			xml: /\bxml\b/,
+			html: /\bhtml/,
+			json: /\bjson\b/
+		},
+
+		responseFields: {
+			xml: "responseXML",
+			text: "responseText",
+			json: "responseJSON"
+		},
+
+		// Data converters
+		// Keys separate source (or catchall "*") and destination types with a single space
+		converters: {
+
+			// Convert anything to text
+			"* text": String,
+
+			// Text to html (true = no transformation)
+			"text html": true,
+
+			// Evaluate text as a json expression
+			"text json": JSON.parse,
+
+			// Parse text as xml
+			"text xml": jQuery.parseXML
+		},
+
+		// For options that shouldn't be deep extended:
+		// you can add your own custom options here if
+		// and when you create one that shouldn't be
+		// deep extended (see ajaxExtend)
+		flatOptions: {
+			url: true,
+			context: true
+		}
+	},
+
+	// Creates a full fledged settings object into target
+	// with both ajaxSettings and settings fields.
+	// If target is omitted, writes into ajaxSettings.
+	ajaxSetup: function( target, settings ) {
+		return settings ?
+
+			// Building a settings object
+			ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
+
+			// Extending ajaxSettings
+			ajaxExtend( jQuery.ajaxSettings, target );
+	},
+
+	ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
+	ajaxTransport: addToPrefiltersOrTransports( transports ),
+
+	// Main method
+	ajax: function( url, options ) {
+
+		// If url is an object, simulate pre-1.5 signature
+		if ( typeof url === "object" ) {
+			options = url;
+			url = undefined;
+		}
+
+		// Force options to be an object
+		options = options || {};
+
+		var transport,
+
+			// URL without anti-cache param
+			cacheURL,
+
+			// Response headers
+			responseHeadersString,
+			responseHeaders,
+
+			// timeout handle
+			timeoutTimer,
+
+			// Url cleanup var
+			urlAnchor,
+
+			// Request state (becomes false upon send and true upon completion)
+			completed,
+
+			// To know if global events are to be dispatched
+			fireGlobals,
+
+			// Loop variable
+			i,
+
+			// uncached part of the url
+			uncached,
+
+			// Create the final options object
+			s = jQuery.ajaxSetup( {}, options ),
+
+			// Callbacks context
+			callbackContext = s.context || s,
+
+			// Context for global events is callbackContext if it is a DOM node or jQuery collection
+			globalEventContext = s.context &&
+				( callbackContext.nodeType || callbackContext.jquery ) ?
+				jQuery( callbackContext ) :
+				jQuery.event,
+
+			// Deferreds
+			deferred = jQuery.Deferred(),
+			completeDeferred = jQuery.Callbacks( "once memory" ),
+
+			// Status-dependent callbacks
+			statusCode = s.statusCode || {},
+
+			// Headers (they are sent all at once)
+			requestHeaders = {},
+			requestHeadersNames = {},
+
+			// Default abort message
+			strAbort = "canceled",
+
+			// Fake xhr
+			jqXHR = {
+				readyState: 0,
+
+				// Builds headers hashtable if needed
+				getResponseHeader: function( key ) {
+					var match;
+					if ( completed ) {
+						if ( !responseHeaders ) {
+							responseHeaders = {};
+							while ( ( match = rheaders.exec( responseHeadersString ) ) ) {
+								responseHeaders[ match[ 1 ].toLowerCase() + " " ] =
+									( responseHeaders[ match[ 1 ].toLowerCase() + " " ] || [] )
+										.concat( match[ 2 ] );
+							}
+						}
+						match = responseHeaders[ key.toLowerCase() + " " ];
+					}
+					return match == null ? null : match.join( ", " );
+				},
+
+				// Raw string
+				getAllResponseHeaders: function() {
+					return completed ? responseHeadersString : null;
+				},
+
+				// Caches the header
+				setRequestHeader: function( name, value ) {
+					if ( completed == null ) {
+						name = requestHeadersNames[ name.toLowerCase() ] =
+							requestHeadersNames[ name.toLowerCase() ] || name;
+						requestHeaders[ name ] = value;
+					}
+					return this;
+				},
+
+				// Overrides response content-type header
+				overrideMimeType: function( type ) {
+					if ( completed == null ) {
+						s.mimeType = type;
+					}
+					return this;
+				},
+
+				// Status-dependent callbacks
+				statusCode: function( map ) {
+					var code;
+					if ( map ) {
+						if ( completed ) {
+
+							// Execute the appropriate callbacks
+							jqXHR.always( map[ jqXHR.status ] );
+						} else {
+
+							// Lazy-add the new callbacks in a way that preserves old ones
+							for ( code in map ) {
+								statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
+							}
+						}
+					}
+					return this;
+				},
+
+				// Cancel the request
+				abort: function( statusText ) {
+					var finalText = statusText || strAbort;
+					if ( transport ) {
+						transport.abort( finalText );
+					}
+					done( 0, finalText );
+					return this;
+				}
+			};
+
+		// Attach deferreds
+		deferred.promise( jqXHR );
+
+		// Add protocol if not provided (prefilters might expect it)
+		// Handle falsy url in the settings object (#10093: consistency with old signature)
+		// We also use the url parameter if available
+		s.url = ( ( url || s.url || location.href ) + "" )
+			.replace( rprotocol, location.protocol + "//" );
+
+		// Alias method option to type as per ticket #12004
+		s.type = options.method || options.type || s.method || s.type;
+
+		// Extract dataTypes list
+		s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ];
+
+		// A cross-domain request is in order when the origin doesn't match the current origin.
+		if ( s.crossDomain == null ) {
+			urlAnchor = document.createElement( "a" );
+
+			// Support: IE <=8 - 11, Edge 12 - 15
+			// IE throws exception on accessing the href property if url is malformed,
+			// e.g. http://example.com:80x/
+			try {
+				urlAnchor.href = s.url;
+
+				// Support: IE <=8 - 11 only
+				// Anchor's host property isn't correctly set when s.url is relative
+				urlAnchor.href = urlAnchor.href;
+				s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !==
+					urlAnchor.protocol + "//" + urlAnchor.host;
+			} catch ( e ) {
+
+				// If there is an error parsing the URL, assume it is crossDomain,
+				// it can be rejected by the transport if it is invalid
+				s.crossDomain = true;
+			}
+		}
+
+		// Convert data if not already a string
+		if ( s.data && s.processData && typeof s.data !== "string" ) {
+			s.data = jQuery.param( s.data, s.traditional );
+		}
+
+		// Apply prefilters
+		inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
+
+		// If request was aborted inside a prefilter, stop there
+		if ( completed ) {
+			return jqXHR;
+		}
+
+		// We can fire global events as of now if asked to
+		// Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
+		fireGlobals = jQuery.event && s.global;
+
+		// Watch for a new set of requests
+		if ( fireGlobals && jQuery.active++ === 0 ) {
+			jQuery.event.trigger( "ajaxStart" );
+		}
+
+		// Uppercase the type
+		s.type = s.type.toUpperCase();
+
+		// Determine if request has content
+		s.hasContent = !rnoContent.test( s.type );
+
+		// Save the URL in case we're toying with the If-Modified-Since
+		// and/or If-None-Match header later on
+		// Remove hash to simplify url manipulation
+		cacheURL = s.url.replace( rhash, "" );
+
+		// More options handling for requests with no content
+		if ( !s.hasContent ) {
+
+			// Remember the hash so we can put it back
+			uncached = s.url.slice( cacheURL.length );
+
+			// If data is available and should be processed, append data to url
+			if ( s.data && ( s.processData || typeof s.data === "string" ) ) {
+				cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data;
+
+				// #9682: remove data so that it's not used in an eventual retry
+				delete s.data;
+			}
+
+			// Add or update anti-cache param if needed
+			if ( s.cache === false ) {
+				cacheURL = cacheURL.replace( rantiCache, "$1" );
+				uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce.guid++ ) +
+					uncached;
+			}
+
+			// Put hash and anti-cache on the URL that will be requested (gh-1732)
+			s.url = cacheURL + uncached;
+
+		// Change '%20' to '+' if this is encoded form body content (gh-2658)
+		} else if ( s.data && s.processData &&
+			( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) {
+			s.data = s.data.replace( r20, "+" );
+		}
+
+		// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+		if ( s.ifModified ) {
+			if ( jQuery.lastModified[ cacheURL ] ) {
+				jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
+			}
+			if ( jQuery.etag[ cacheURL ] ) {
+				jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
+			}
+		}
+
+		// Set the correct header, if data is being sent
+		if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
+			jqXHR.setRequestHeader( "Content-Type", s.contentType );
+		}
+
+		// Set the Accepts header for the server, depending on the dataType
+		jqXHR.setRequestHeader(
+			"Accept",
+			s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?
+				s.accepts[ s.dataTypes[ 0 ] ] +
+					( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
+				s.accepts[ "*" ]
+		);
+
+		// Check for headers option
+		for ( i in s.headers ) {
+			jqXHR.setRequestHeader( i, s.headers[ i ] );
+		}
+
+		// Allow custom headers/mimetypes and early abort
+		if ( s.beforeSend &&
+			( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) {
+
+			// Abort if not done already and return
+			return jqXHR.abort();
+		}
+
+		// Aborting is no longer a cancellation
+		strAbort = "abort";
+
+		// Install callbacks on deferreds
+		completeDeferred.add( s.complete );
+		jqXHR.done( s.success );
+		jqXHR.fail( s.error );
+
+		// Get transport
+		transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
+
+		// If no transport, we auto-abort
+		if ( !transport ) {
+			done( -1, "No Transport" );
+		} else {
+			jqXHR.readyState = 1;
+
+			// Send global event
+			if ( fireGlobals ) {
+				globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
+			}
+
+			// If request was aborted inside ajaxSend, stop there
+			if ( completed ) {
+				return jqXHR;
+			}
+
+			// Timeout
+			if ( s.async && s.timeout > 0 ) {
+				timeoutTimer = window.setTimeout( function() {
+					jqXHR.abort( "timeout" );
+				}, s.timeout );
+			}
+
+			try {
+				completed = false;
+				transport.send( requestHeaders, done );
+			} catch ( e ) {
+
+				// Rethrow post-completion exceptions
+				if ( completed ) {
+					throw e;
+				}
+
+				// Propagate others as results
+				done( -1, e );
+			}
+		}
+
+		// Callback for when everything is done
+		function done( status, nativeStatusText, responses, headers ) {
+			var isSuccess, success, error, response, modified,
+				statusText = nativeStatusText;
+
+			// Ignore repeat invocations
+			if ( completed ) {
+				return;
+			}
+
+			completed = true;
+
+			// Clear timeout if it exists
+			if ( timeoutTimer ) {
+				window.clearTimeout( timeoutTimer );
+			}
+
+			// Dereference transport for early garbage collection
+			// (no matter how long the jqXHR object will be used)
+			transport = undefined;
+
+			// Cache response headers
+			responseHeadersString = headers || "";
+
+			// Set readyState
+			jqXHR.readyState = status > 0 ? 4 : 0;
+
+			// Determine if successful
+			isSuccess = status >= 200 && status < 300 || status === 304;
+
+			// Get response data
+			if ( responses ) {
+				response = ajaxHandleResponses( s, jqXHR, responses );
+			}
+
+			// Use a noop converter for missing script but not if jsonp
+			if ( !isSuccess &&
+				jQuery.inArray( "script", s.dataTypes ) > -1 &&
+				jQuery.inArray( "json", s.dataTypes ) < 0 ) {
+				s.converters[ "text script" ] = function() {};
+			}
+
+			// Convert no matter what (that way responseXXX fields are always set)
+			response = ajaxConvert( s, response, jqXHR, isSuccess );
+
+			// If successful, handle type chaining
+			if ( isSuccess ) {
+
+				// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+				if ( s.ifModified ) {
+					modified = jqXHR.getResponseHeader( "Last-Modified" );
+					if ( modified ) {
+						jQuery.lastModified[ cacheURL ] = modified;
+					}
+					modified = jqXHR.getResponseHeader( "etag" );
+					if ( modified ) {
+						jQuery.etag[ cacheURL ] = modified;
+					}
+				}
+
+				// if no content
+				if ( status === 204 || s.type === "HEAD" ) {
+					statusText = "nocontent";
+
+				// if not modified
+				} else if ( status === 304 ) {
+					statusText = "notmodified";
+
+				// If we have data, let's convert it
+				} else {
+					statusText = response.state;
+					success = response.data;
+					error = response.error;
+					isSuccess = !error;
+				}
+			} else {
+
+				// Extract error from statusText and normalize for non-aborts
+				error = statusText;
+				if ( status || !statusText ) {
+					statusText = "error";
+					if ( status < 0 ) {
+						status = 0;
+					}
+				}
+			}
+
+			// Set data for the fake xhr object
+			jqXHR.status = status;
+			jqXHR.statusText = ( nativeStatusText || statusText ) + "";
+
+			// Success/Error
+			if ( isSuccess ) {
+				deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
+			} else {
+				deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
+			}
+
+			// Status-dependent callbacks
+			jqXHR.statusCode( statusCode );
+			statusCode = undefined;
+
+			if ( fireGlobals ) {
+				globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
+					[ jqXHR, s, isSuccess ? success : error ] );
+			}
+
+			// Complete
+			completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
+
+			if ( fireGlobals ) {
+				globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
+
+				// Handle the global AJAX counter
+				if ( !( --jQuery.active ) ) {
+					jQuery.event.trigger( "ajaxStop" );
+				}
+			}
+		}
+
+		return jqXHR;
+	},
+
+	getJSON: function( url, data, callback ) {
+		return jQuery.get( url, data, callback, "json" );
+	},
+
+	getScript: function( url, callback ) {
+		return jQuery.get( url, undefined, callback, "script" );
+	}
+} );
+
+jQuery.each( [ "get", "post" ], function( _i, method ) {
+	jQuery[ method ] = function( url, data, callback, type ) {
+
+		// Shift arguments if data argument was omitted
+		if ( isFunction( data ) ) {
+			type = type || callback;
+			callback = data;
+			data = undefined;
+		}
+
+		// The url can be an options object (which then must have .url)
+		return jQuery.ajax( jQuery.extend( {
+			url: url,
+			type: method,
+			dataType: type,
+			data: data,
+			success: callback
+		}, jQuery.isPlainObject( url ) && url ) );
+	};
+} );
+
+jQuery.ajaxPrefilter( function( s ) {
+	var i;
+	for ( i in s.headers ) {
+		if ( i.toLowerCase() === "content-type" ) {
+			s.contentType = s.headers[ i ] || "";
+		}
+	}
+} );
+
+
+jQuery._evalUrl = function( url, options, doc ) {
+	return jQuery.ajax( {
+		url: url,
+
+		// Make this explicit, since user can override this through ajaxSetup (#11264)
+		type: "GET",
+		dataType: "script",
+		cache: true,
+		async: false,
+		global: false,
+
+		// Only evaluate the response if it is successful (gh-4126)
+		// dataFilter is not invoked for failure responses, so using it instead
+		// of the default converter is kludgy but it works.
+		converters: {
+			"text script": function() {}
+		},
+		dataFilter: function( response ) {
+			jQuery.globalEval( response, options, doc );
+		}
+	} );
+};
+
+
+jQuery.fn.extend( {
+	wrapAll: function( html ) {
+		var wrap;
+
+		if ( this[ 0 ] ) {
+			if ( isFunction( html ) ) {
+				html = html.call( this[ 0 ] );
+			}
+
+			// The elements to wrap the target around
+			wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );
+
+			if ( this[ 0 ].parentNode ) {
+				wrap.insertBefore( this[ 0 ] );
+			}
+
+			wrap.map( function() {
+				var elem = this;
+
+				while ( elem.firstElementChild ) {
+					elem = elem.firstElementChild;
+				}
+
+				return elem;
+			} ).append( this );
+		}
+
+		return this;
+	},
+
+	wrapInner: function( html ) {
+		if ( isFunction( html ) ) {
+			return this.each( function( i ) {
+				jQuery( this ).wrapInner( html.call( this, i ) );
+			} );
+		}
+
+		return this.each( function() {
+			var self = jQuery( this ),
+				contents = self.contents();
+
+			if ( contents.length ) {
+				contents.wrapAll( html );
+
+			} else {
+				self.append( html );
+			}
+		} );
+	},
+
+	wrap: function( html ) {
+		var htmlIsFunction = isFunction( html );
+
+		return this.each( function( i ) {
+			jQuery( this ).wrapAll( htmlIsFunction ? html.call( this, i ) : html );
+		} );
+	},
+
+	unwrap: function( selector ) {
+		this.parent( selector ).not( "body" ).each( function() {
+			jQuery( this ).replaceWith( this.childNodes );
+		} );
+		return this;
+	}
+} );
+
+
+jQuery.expr.pseudos.hidden = function( elem ) {
+	return !jQuery.expr.pseudos.visible( elem );
+};
+jQuery.expr.pseudos.visible = function( elem ) {
+	return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length );
+};
+
+
+
+
+jQuery.ajaxSettings.xhr = function() {
+	try {
+		return new window.XMLHttpRequest();
+	} catch ( e ) {}
+};
+
+var xhrSuccessStatus = {
+
+		// File protocol always yields status code 0, assume 200
+		0: 200,
+
+		// Support: IE <=9 only
+		// #1450: sometimes IE returns 1223 when it should be 204
+		1223: 204
+	},
+	xhrSupported = jQuery.ajaxSettings.xhr();
+
+support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
+support.ajax = xhrSupported = !!xhrSupported;
+
+jQuery.ajaxTransport( function( options ) {
+	var callback, errorCallback;
+
+	// Cross domain only allowed if supported through XMLHttpRequest
+	if ( support.cors || xhrSupported && !options.crossDomain ) {
+		return {
+			send: function( headers, complete ) {
+				var i,
+					xhr = options.xhr();
+
+				xhr.open(
+					options.type,
+					options.url,
+					options.async,
+					options.username,
+					options.password
+				);
+
+				// Apply custom fields if provided
+				if ( options.xhrFields ) {
+					for ( i in options.xhrFields ) {
+						xhr[ i ] = options.xhrFields[ i ];
+					}
+				}
+
+				// Override mime type if needed
+				if ( options.mimeType && xhr.overrideMimeType ) {
+					xhr.overrideMimeType( options.mimeType );
+				}
+
+				// X-Requested-With header
+				// For cross-domain requests, seeing as conditions for a preflight are
+				// akin to a jigsaw puzzle, we simply never set it to be sure.
+				// (it can always be set on a per-request basis or even using ajaxSetup)
+				// For same-domain requests, won't change header if already provided.
+				if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) {
+					headers[ "X-Requested-With" ] = "XMLHttpRequest";
+				}
+
+				// Set headers
+				for ( i in headers ) {
+					xhr.setRequestHeader( i, headers[ i ] );
+				}
+
+				// Callback
+				callback = function( type ) {
+					return function() {
+						if ( callback ) {
+							callback = errorCallback = xhr.onload =
+								xhr.onerror = xhr.onabort = xhr.ontimeout =
+									xhr.onreadystatechange = null;
+
+							if ( type === "abort" ) {
+								xhr.abort();
+							} else if ( type === "error" ) {
+
+								// Support: IE <=9 only
+								// On a manual native abort, IE9 throws
+								// errors on any property access that is not readyState
+								if ( typeof xhr.status !== "number" ) {
+									complete( 0, "error" );
+								} else {
+									complete(
+
+										// File: protocol always yields status 0; see #8605, #14207
+										xhr.status,
+										xhr.statusText
+									);
+								}
+							} else {
+								complete(
+									xhrSuccessStatus[ xhr.status ] || xhr.status,
+									xhr.statusText,
+
+									// Support: IE <=9 only
+									// IE9 has no XHR2 but throws on binary (trac-11426)
+									// For XHR2 non-text, let the caller handle it (gh-2498)
+									( xhr.responseType || "text" ) !== "text"  ||
+									typeof xhr.responseText !== "string" ?
+										{ binary: xhr.response } :
+										{ text: xhr.responseText },
+									xhr.getAllResponseHeaders()
+								);
+							}
+						}
+					};
+				};
+
+				// Listen to events
+				xhr.onload = callback();
+				errorCallback = xhr.onerror = xhr.ontimeout = callback( "error" );
+
+				// Support: IE 9 only
+				// Use onreadystatechange to replace onabort
+				// to handle uncaught aborts
+				if ( xhr.onabort !== undefined ) {
+					xhr.onabort = errorCallback;
+				} else {
+					xhr.onreadystatechange = function() {
+
+						// Check readyState before timeout as it changes
+						if ( xhr.readyState === 4 ) {
+
+							// Allow onerror to be called first,
+							// but that will not handle a native abort
+							// Also, save errorCallback to a variable
+							// as xhr.onerror cannot be accessed
+							window.setTimeout( function() {
+								if ( callback ) {
+									errorCallback();
+								}
+							} );
+						}
+					};
+				}
+
+				// Create the abort callback
+				callback = callback( "abort" );
+
+				try {
+
+					// Do send the request (this may raise an exception)
+					xhr.send( options.hasContent && options.data || null );
+				} catch ( e ) {
+
+					// #14683: Only rethrow if this hasn't been notified as an error yet
+					if ( callback ) {
+						throw e;
+					}
+				}
+			},
+
+			abort: function() {
+				if ( callback ) {
+					callback();
+				}
+			}
+		};
+	}
+} );
+
+
+
+
+// Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432)
+jQuery.ajaxPrefilter( function( s ) {
+	if ( s.crossDomain ) {
+		s.contents.script = false;
+	}
+} );
+
+// Install script dataType
+jQuery.ajaxSetup( {
+	accepts: {
+		script: "text/javascript, application/javascript, " +
+			"application/ecmascript, application/x-ecmascript"
+	},
+	contents: {
+		script: /\b(?:java|ecma)script\b/
+	},
+	converters: {
+		"text script": function( text ) {
+			jQuery.globalEval( text );
+			return text;
+		}
+	}
+} );
+
+// Handle cache's special case and crossDomain
+jQuery.ajaxPrefilter( "script", function( s ) {
+	if ( s.cache === undefined ) {
+		s.cache = false;
+	}
+	if ( s.crossDomain ) {
+		s.type = "GET";
+	}
+} );
+
+// Bind script tag hack transport
+jQuery.ajaxTransport( "script", function( s ) {
+
+	// This transport only deals with cross domain or forced-by-attrs requests
+	if ( s.crossDomain || s.scriptAttrs ) {
+		var script, callback;
+		return {
+			send: function( _, complete ) {
+				script = jQuery( "<script>" )
+					.attr( s.scriptAttrs || {} )
+					.prop( { charset: s.scriptCharset, src: s.url } )
+					.on( "load error", callback = function( evt ) {
+						script.remove();
+						callback = null;
+						if ( evt ) {
+							complete( evt.type === "error" ? 404 : 200, evt.type );
+						}
+					} );
+
+				// Use native DOM manipulation to avoid our domManip AJAX trickery
+				document.head.appendChild( script[ 0 ] );
+			},
+			abort: function() {
+				if ( callback ) {
+					callback();
+				}
+			}
+		};
+	}
+} );
+
+
+
+
+var oldCallbacks = [],
+	rjsonp = /(=)\?(?=&|$)|\?\?/;
+
+// Default jsonp settings
+jQuery.ajaxSetup( {
+	jsonp: "callback",
+	jsonpCallback: function() {
+		var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce.guid++ ) );
+		this[ callback ] = true;
+		return callback;
+	}
+} );
+
+// Detect, normalize options and install callbacks for jsonp requests
+jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
+
+	var callbackName, overwritten, responseContainer,
+		jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
+			"url" :
+			typeof s.data === "string" &&
+				( s.contentType || "" )
+					.indexOf( "application/x-www-form-urlencoded" ) === 0 &&
+				rjsonp.test( s.data ) && "data"
+		);
+
+	// Handle iff the expected data type is "jsonp" or we have a parameter to set
+	if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
+
+		// Get callback name, remembering preexisting value associated with it
+		callbackName = s.jsonpCallback = isFunction( s.jsonpCallback ) ?
+			s.jsonpCallback() :
+			s.jsonpCallback;
+
+		// Insert callback into url or form data
+		if ( jsonProp ) {
+			s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
+		} else if ( s.jsonp !== false ) {
+			s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
+		}
+
+		// Use data converter to retrieve json after script execution
+		s.converters[ "script json" ] = function() {
+			if ( !responseContainer ) {
+				jQuery.error( callbackName + " was not called" );
+			}
+			return responseContainer[ 0 ];
+		};
+
+		// Force json dataType
+		s.dataTypes[ 0 ] = "json";
+
+		// Install callback
+		overwritten = window[ callbackName ];
+		window[ callbackName ] = function() {
+			responseContainer = arguments;
+		};
+
+		// Clean-up function (fires after converters)
+		jqXHR.always( function() {
+
+			// If previous value didn't exist - remove it
+			if ( overwritten === undefined ) {
+				jQuery( window ).removeProp( callbackName );
+
+			// Otherwise restore preexisting value
+			} else {
+				window[ callbackName ] = overwritten;
+			}
+
+			// Save back as free
+			if ( s[ callbackName ] ) {
+
+				// Make sure that re-using the options doesn't screw things around
+				s.jsonpCallback = originalSettings.jsonpCallback;
+
+				// Save the callback name for future use
+				oldCallbacks.push( callbackName );
+			}
+
+			// Call if it was a function and we have a response
+			if ( responseContainer && isFunction( overwritten ) ) {
+				overwritten( responseContainer[ 0 ] );
+			}
+
+			responseContainer = overwritten = undefined;
+		} );
+
+		// Delegate to script
+		return "script";
+	}
+} );
+
+
+
+
+// Support: Safari 8 only
+// In Safari 8 documents created via document.implementation.createHTMLDocument
+// collapse sibling forms: the second one becomes a child of the first one.
+// Because of that, this security measure has to be disabled in Safari 8.
+// https://bugs.webkit.org/show_bug.cgi?id=137337
+support.createHTMLDocument = ( function() {
+	var body = document.implementation.createHTMLDocument( "" ).body;
+	body.innerHTML = "<form></form><form></form>";
+	return body.childNodes.length === 2;
+} )();
+
+
+// Argument "data" should be string of html
+// context (optional): If specified, the fragment will be created in this context,
+// defaults to document
+// keepScripts (optional): If true, will include scripts passed in the html string
+jQuery.parseHTML = function( data, context, keepScripts ) {
+	if ( typeof data !== "string" ) {
+		return [];
+	}
+	if ( typeof context === "boolean" ) {
+		keepScripts = context;
+		context = false;
+	}
+
+	var base, parsed, scripts;
+
+	if ( !context ) {
+
+		// Stop scripts or inline event handlers from being executed immediately
+		// by using document.implementation
+		if ( support.createHTMLDocument ) {
+			context = document.implementation.createHTMLDocument( "" );
+
+			// Set the base href for the created document
+			// so any parsed elements with URLs
+			// are based on the document's URL (gh-2965)
+			base = context.createElement( "base" );
+			base.href = document.location.href;
+			context.head.appendChild( base );
+		} else {
+			context = document;
+		}
+	}
+
+	parsed = rsingleTag.exec( data );
+	scripts = !keepScripts && [];
+
+	// Single tag
+	if ( parsed ) {
+		return [ context.createElement( parsed[ 1 ] ) ];
+	}
+
+	parsed = buildFragment( [ data ], context, scripts );
+
+	if ( scripts && scripts.length ) {
+		jQuery( scripts ).remove();
+	}
+
+	return jQuery.merge( [], parsed.childNodes );
+};
+
+
+/**
+ * Load a url into a page
+ */
+jQuery.fn.load = function( url, params, callback ) {
+	var selector, type, response,
+		self = this,
+		off = url.indexOf( " " );
+
+	if ( off > -1 ) {
+		selector = stripAndCollapse( url.slice( off ) );
+		url = url.slice( 0, off );
+	}
+
+	// If it's a function
+	if ( isFunction( params ) ) {
+
+		// We assume that it's the callback
+		callback = params;
+		params = undefined;
+
+	// Otherwise, build a param string
+	} else if ( params && typeof params === "object" ) {
+		type = "POST";
+	}
+
+	// If we have elements to modify, make the request
+	if ( self.length > 0 ) {
+		jQuery.ajax( {
+			url: url,
+
+			// If "type" variable is undefined, then "GET" method will be used.
+			// Make value of this field explicit since
+			// user can override it through ajaxSetup method
+			type: type || "GET",
+			dataType: "html",
+			data: params
+		} ).done( function( responseText ) {
+
+			// Save response for use in complete callback
+			response = arguments;
+
+			self.html( selector ?
+
+				// If a selector was specified, locate the right elements in a dummy div
+				// Exclude scripts to avoid IE 'Permission Denied' errors
+				jQuery( "<div>" ).append( jQuery.parseHTML( responseText ) ).find( selector ) :
+
+				// Otherwise use the full result
+				responseText );
+
+		// If the request succeeds, this function gets "data", "status", "jqXHR"
+		// but they are ignored because response was set above.
+		// If it fails, this function gets "jqXHR", "status", "error"
+		} ).always( callback && function( jqXHR, status ) {
+			self.each( function() {
+				callback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] );
+			} );
+		} );
+	}
+
+	return this;
+};
+
+
+
+
+jQuery.expr.pseudos.animated = function( elem ) {
+	return jQuery.grep( jQuery.timers, function( fn ) {
+		return elem === fn.elem;
+	} ).length;
+};
+
+
+
+
+jQuery.offset = {
+	setOffset: function( elem, options, i ) {
+		var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
+			position = jQuery.css( elem, "position" ),
+			curElem = jQuery( elem ),
+			props = {};
+
+		// Set position first, in-case top/left are set even on static elem
+		if ( position === "static" ) {
+			elem.style.position = "relative";
+		}
+
+		curOffset = curElem.offset();
+		curCSSTop = jQuery.css( elem, "top" );
+		curCSSLeft = jQuery.css( elem, "left" );
+		calculatePosition = ( position === "absolute" || position === "fixed" ) &&
+			( curCSSTop + curCSSLeft ).indexOf( "auto" ) > -1;
+
+		// Need to be able to calculate position if either
+		// top or left is auto and position is either absolute or fixed
+		if ( calculatePosition ) {
+			curPosition = curElem.position();
+			curTop = curPosition.top;
+			curLeft = curPosition.left;
+
+		} else {
+			curTop = parseFloat( curCSSTop ) || 0;
+			curLeft = parseFloat( curCSSLeft ) || 0;
+		}
+
+		if ( isFunction( options ) ) {
+
+			// Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
+			options = options.call( elem, i, jQuery.extend( {}, curOffset ) );
+		}
+
+		if ( options.top != null ) {
+			props.top = ( options.top - curOffset.top ) + curTop;
+		}
+		if ( options.left != null ) {
+			props.left = ( options.left - curOffset.left ) + curLeft;
+		}
+
+		if ( "using" in options ) {
+			options.using.call( elem, props );
+
+		} else {
+			curElem.css( props );
+		}
+	}
+};
+
+jQuery.fn.extend( {
+
+	// offset() relates an element's border box to the document origin
+	offset: function( options ) {
+
+		// Preserve chaining for setter
+		if ( arguments.length ) {
+			return options === undefined ?
+				this :
+				this.each( function( i ) {
+					jQuery.offset.setOffset( this, options, i );
+				} );
+		}
+
+		var rect, win,
+			elem = this[ 0 ];
+
+		if ( !elem ) {
+			return;
+		}
+
+		// Return zeros for disconnected and hidden (display: none) elements (gh-2310)
+		// Support: IE <=11 only
+		// Running getBoundingClientRect on a
+		// disconnected node in IE throws an error
+		if ( !elem.getClientRects().length ) {
+			return { top: 0, left: 0 };
+		}
+
+		// Get document-relative position by adding viewport scroll to viewport-relative gBCR
+		rect = elem.getBoundingClientRect();
+		win = elem.ownerDocument.defaultView;
+		return {
+			top: rect.top + win.pageYOffset,
+			left: rect.left + win.pageXOffset
+		};
+	},
+
+	// position() relates an element's margin box to its offset parent's padding box
+	// This corresponds to the behavior of CSS absolute positioning
+	position: function() {
+		if ( !this[ 0 ] ) {
+			return;
+		}
+
+		var offsetParent, offset, doc,
+			elem = this[ 0 ],
+			parentOffset = { top: 0, left: 0 };
+
+		// position:fixed elements are offset from the viewport, which itself always has zero offset
+		if ( jQuery.css( elem, "position" ) === "fixed" ) {
+
+			// Assume position:fixed implies availability of getBoundingClientRect
+			offset = elem.getBoundingClientRect();
+
+		} else {
+			offset = this.offset();
+
+			// Account for the *real* offset parent, which can be the document or its root element
+			// when a statically positioned element is identified
+			doc = elem.ownerDocument;
+			offsetParent = elem.offsetParent || doc.documentElement;
+			while ( offsetParent &&
+				( offsetParent === doc.body || offsetParent === doc.documentElement ) &&
+				jQuery.css( offsetParent, "position" ) === "static" ) {
+
+				offsetParent = offsetParent.parentNode;
+			}
+			if ( offsetParent && offsetParent !== elem && offsetParent.nodeType === 1 ) {
+
+				// Incorporate borders into its offset, since they are outside its content origin
+				parentOffset = jQuery( offsetParent ).offset();
+				parentOffset.top += jQuery.css( offsetParent, "borderTopWidth", true );
+				parentOffset.left += jQuery.css( offsetParent, "borderLeftWidth", true );
+			}
+		}
+
+		// Subtract parent offsets and element margins
+		return {
+			top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
+			left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
+		};
+	},
+
+	// This method will return documentElement in the following cases:
+	// 1) For the element inside the iframe without offsetParent, this method will return
+	//    documentElement of the parent window
+	// 2) For the hidden or detached element
+	// 3) For body or html element, i.e. in case of the html node - it will return itself
+	//
+	// but those exceptions were never presented as a real life use-cases
+	// and might be considered as more preferable results.
+	//
+	// This logic, however, is not guaranteed and can change at any point in the future
+	offsetParent: function() {
+		return this.map( function() {
+			var offsetParent = this.offsetParent;
+
+			while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) {
+				offsetParent = offsetParent.offsetParent;
+			}
+
+			return offsetParent || documentElement;
+		} );
+	}
+} );
+
+// Create scrollLeft and scrollTop methods
+jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
+	var top = "pageYOffset" === prop;
+
+	jQuery.fn[ method ] = function( val ) {
+		return access( this, function( elem, method, val ) {
+
+			// Coalesce documents and windows
+			var win;
+			if ( isWindow( elem ) ) {
+				win = elem;
+			} else if ( elem.nodeType === 9 ) {
+				win = elem.defaultView;
+			}
+
+			if ( val === undefined ) {
+				return win ? win[ prop ] : elem[ method ];
+			}
+
+			if ( win ) {
+				win.scrollTo(
+					!top ? val : win.pageXOffset,
+					top ? val : win.pageYOffset
+				);
+
+			} else {
+				elem[ method ] = val;
+			}
+		}, method, val, arguments.length );
+	};
+} );
+
+// Support: Safari <=7 - 9.1, Chrome <=37 - 49
+// Add the top/left cssHooks using jQuery.fn.position
+// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
+// Blink bug: https://bugs.chromium.org/p/chromium/issues/detail?id=589347
+// getComputedStyle returns percent when specified for top/left/bottom/right;
+// rather than make the css module depend on the offset module, just check for it here
+jQuery.each( [ "top", "left" ], function( _i, prop ) {
+	jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
+		function( elem, computed ) {
+			if ( computed ) {
+				computed = curCSS( elem, prop );
+
+				// If curCSS returns percentage, fallback to offset
+				return rnumnonpx.test( computed ) ?
+					jQuery( elem ).position()[ prop ] + "px" :
+					computed;
+			}
+		}
+	);
+} );
+
+
+// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
+jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
+	jQuery.each( {
+		padding: "inner" + name,
+		content: type,
+		"": "outer" + name
+	}, function( defaultExtra, funcName ) {
+
+		// Margin is only for outerHeight, outerWidth
+		jQuery.fn[ funcName ] = function( margin, value ) {
+			var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
+				extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );
+
+			return access( this, function( elem, type, value ) {
+				var doc;
+
+				if ( isWindow( elem ) ) {
+
+					// $( window ).outerWidth/Height return w/h including scrollbars (gh-1729)
+					return funcName.indexOf( "outer" ) === 0 ?
+						elem[ "inner" + name ] :
+						elem.document.documentElement[ "client" + name ];
+				}
+
+				// Get document width or height
+				if ( elem.nodeType === 9 ) {
+					doc = elem.documentElement;
+
+					// Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
+					// whichever is greatest
+					return Math.max(
+						elem.body[ "scroll" + name ], doc[ "scroll" + name ],
+						elem.body[ "offset" + name ], doc[ "offset" + name ],
+						doc[ "client" + name ]
+					);
+				}
+
+				return value === undefined ?
+
+					// Get width or height on the element, requesting but not forcing parseFloat
+					jQuery.css( elem, type, extra ) :
+
+					// Set width or height on the element
+					jQuery.style( elem, type, value, extra );
+			}, type, chainable ? margin : undefined, chainable );
+		};
+	} );
+} );
+
+
+jQuery.each( [
+	"ajaxStart",
+	"ajaxStop",
+	"ajaxComplete",
+	"ajaxError",
+	"ajaxSuccess",
+	"ajaxSend"
+], function( _i, type ) {
+	jQuery.fn[ type ] = function( fn ) {
+		return this.on( type, fn );
+	};
+} );
+
+
+
+
+jQuery.fn.extend( {
+
+	bind: function( types, data, fn ) {
+		return this.on( types, null, data, fn );
+	},
+	unbind: function( types, fn ) {
+		return this.off( types, null, fn );
+	},
+
+	delegate: function( selector, types, data, fn ) {
+		return this.on( types, selector, data, fn );
+	},
+	undelegate: function( selector, types, fn ) {
+
+		// ( namespace ) or ( selector, types [, fn] )
+		return arguments.length === 1 ?
+			this.off( selector, "**" ) :
+			this.off( types, selector || "**", fn );
+	},
+
+	hover: function( fnOver, fnOut ) {
+		return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
+	}
+} );
+
+jQuery.each(
+	( "blur focus focusin focusout resize scroll click dblclick " +
+	"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
+	"change select submit keydown keypress keyup contextmenu" ).split( " " ),
+	function( _i, name ) {
+
+		// Handle event binding
+		jQuery.fn[ name ] = function( data, fn ) {
+			return arguments.length > 0 ?
+				this.on( name, null, data, fn ) :
+				this.trigger( name );
+		};
+	}
+);
+
+
+
+
+// Support: Android <=4.0 only
+// Make sure we trim BOM and NBSP
+var rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;
+
+// Bind a function to a context, optionally partially applying any
+// arguments.
+// jQuery.proxy is deprecated to promote standards (specifically Function#bind)
+// However, it is not slated for removal any time soon
+jQuery.proxy = function( fn, context ) {
+	var tmp, args, proxy;
+
+	if ( typeof context === "string" ) {
+		tmp = fn[ context ];
+		context = fn;
+		fn = tmp;
+	}
+
+	// Quick check to determine if target is callable, in the spec
+	// this throws a TypeError, but we will just return undefined.
+	if ( !isFunction( fn ) ) {
+		return undefined;
+	}
+
+	// Simulated bind
+	args = slice.call( arguments, 2 );
+	proxy = function() {
+		return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
+	};
+
+	// Set the guid of unique handler to the same of original handler, so it can be removed
+	proxy.guid = fn.guid = fn.guid || jQuery.guid++;
+
+	return proxy;
+};
+
+jQuery.holdReady = function( hold ) {
+	if ( hold ) {
+		jQuery.readyWait++;
+	} else {
+		jQuery.ready( true );
+	}
+};
+jQuery.isArray = Array.isArray;
+jQuery.parseJSON = JSON.parse;
+jQuery.nodeName = nodeName;
+jQuery.isFunction = isFunction;
+jQuery.isWindow = isWindow;
+jQuery.camelCase = camelCase;
+jQuery.type = toType;
+
+jQuery.now = Date.now;
+
+jQuery.isNumeric = function( obj ) {
+
+	// As of jQuery 3.0, isNumeric is limited to
+	// strings and numbers (primitives or objects)
+	// that can be coerced to finite numbers (gh-2662)
+	var type = jQuery.type( obj );
+	return ( type === "number" || type === "string" ) &&
+
+		// parseFloat NaNs numeric-cast false positives ("")
+		// ...but misinterprets leading-number strings, particularly hex literals ("0x...")
+		// subtraction forces infinities to NaN
+		!isNaN( obj - parseFloat( obj ) );
+};
+
+jQuery.trim = function( text ) {
+	return text == null ?
+		"" :
+		( text + "" ).replace( rtrim, "" );
+};
+
+
+
+// Register as a named AMD module, since jQuery can be concatenated with other
+// files that may use define, but not via a proper concatenation script that
+// understands anonymous AMD modules. A named AMD is safest and most robust
+// way to register. Lowercase jquery is used because AMD module names are
+// derived from file names, and jQuery is normally delivered in a lowercase
+// file name. Do this after creating the global so that if an AMD module wants
+// to call noConflict to hide this version of jQuery, it will work.
+
+// Note that for maximum portability, libraries that are not jQuery should
+// declare themselves as anonymous modules, and avoid setting a global if an
+// AMD loader is present. jQuery is a special case. For more information, see
+// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon
+
+if ( typeof define === "function" && define.amd ) {
+	define( "jquery", [], function() {
+		return jQuery;
+	} );
+}
+
+
+
+
+var
+
+	// Map over jQuery in case of overwrite
+	_jQuery = window.jQuery,
+
+	// Map over the $ in case of overwrite
+	_$ = window.$;
+
+jQuery.noConflict = function( deep ) {
+	if ( window.$ === jQuery ) {
+		window.$ = _$;
+	}
+
+	if ( deep && window.jQuery === jQuery ) {
+		window.jQuery = _jQuery;
+	}
+
+	return jQuery;
+};
+
+// Expose jQuery and $ identifiers, even in AMD
+// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
+// and CommonJS for browser emulators (#13566)
+if ( typeof noGlobal === "undefined" ) {
+	window.jQuery = window.$ = jQuery;
+}
+
+
+
+
+return jQuery;
+} );
diff --git a/web/static/js/lib.fft.js b/web/static/js/lib.fft.js
new file mode 100644
index 0000000..ddd71d5
--- /dev/null
+++ b/web/static/js/lib.fft.js
@@ -0,0 +1,111 @@
+/*
+时域转频域，快速傅里叶变换(FFT)
+https://github.com/xiangyuecn/Recorder
+
+var fft=Recorder.LibFFT(bufferSize)
+	bufferSize取值2的n次方
+
+fft.bufferSize 实际采用的bufferSize
+fft.transform(inBuffer)
+	inBuffer:[Int16,...] 数组长度必须是bufferSize
+	返回[Float64(Long),...]，长度为bufferSize/2
+*/
+
+/*
+从FFT.java 移植，Java开源库：jmp123 版本0.3
+https://www.iteye.com/topic/851459
+https://sourceforge.net/projects/jmp123/files/
+*/
+Recorder.LibFFT=function(bufferSize){
+	"use strict";
+	
+	var FFT_N_LOG,FFT_N,MINY;
+	var real, imag, sintable, costable;
+	var bitReverse;
+
+	var FFT_Fn=function(bufferSize) {//bufferSize只能取值2的n次方
+		FFT_N_LOG=Math.round(Math.log(bufferSize)/Math.log(2));
+		FFT_N = 1 << FFT_N_LOG;
+		MINY = ((FFT_N << 2) * Math.sqrt(2));
+		
+		real = [];
+		imag = [];
+		sintable = [0];
+		costable = [0];
+		bitReverse = [];
+
+		var i, j, k, reve;
+		for (i = 0; i < FFT_N; i++) {
+			k = i;
+			for (j = 0, reve = 0; j != FFT_N_LOG; j++) {
+				reve <<= 1;
+				reve |= (k & 1);
+				k >>>= 1;
+			}
+			bitReverse[i] = reve;
+		}
+
+		var theta, dt = 2 * Math.PI / FFT_N;
+		for (i = (FFT_N >> 1) - 1; i > 0; i--) {
+			theta = i * dt;
+			costable[i] = Math.cos(theta);
+			sintable[i] = Math.sin(theta);
+		}
+	}
+
+	/*
+	用于频谱显示的快速傅里叶变换 
+    inBuffer 输入FFT_N个实数，返回 FFT_N/2个输出值(复数模的平方)。 
+	*/
+	var getModulus=function(inBuffer) {
+		var i, j, k, ir, j0 = 1, idx = FFT_N_LOG - 1;
+		var cosv, sinv, tmpr, tmpi;
+		for (i = 0; i != FFT_N; i++) {
+			real[i] = inBuffer[bitReverse[i]];
+			imag[i] = 0;
+		}
+
+		for (i = FFT_N_LOG; i != 0; i--) {
+			for (j = 0; j != j0; j++) {
+				cosv = costable[j << idx];
+				sinv = sintable[j << idx];
+				for (k = j; k < FFT_N; k += j0 << 1) {
+					ir = k + j0;
+					tmpr = cosv * real[ir] - sinv * imag[ir];
+					tmpi = cosv * imag[ir] + sinv * real[ir];
+					real[ir] = real[k] - tmpr;
+					imag[ir] = imag[k] - tmpi;
+					real[k] += tmpr;
+					imag[k] += tmpi;
+				}
+			}
+			j0 <<= 1;
+			idx--;
+		}
+
+		j = FFT_N >> 1;
+		var outBuffer=new Float64Array(j);
+		/*
+		 * 输出模的平方:
+		 * for(i = 1; i <= j; i++)
+		 * 	inBuffer[i-1] = real[i] * real[i] +  imag[i] * imag[i];
+		 * 
+		 * 如果FFT只用于频谱显示,可以"淘汰"幅值较小的而减少浮点乘法运算. MINY的值
+		 * 和Spectrum.Y0,Spectrum.logY0对应.
+		 */
+		sinv = MINY;
+		cosv = -MINY;
+		for (i = j; i != 0; i--) {
+			tmpr = real[i];
+			tmpi = imag[i];
+			if (tmpr > cosv && tmpr < sinv && tmpi > cosv && tmpi < sinv)
+				outBuffer[i - 1] = 0;
+			else
+				outBuffer[i - 1] = Math.round(tmpr * tmpr + tmpi * tmpi);
+		}
+		return outBuffer;
+	}
+	
+	FFT_Fn(bufferSize);
+	return {transform:getModulus,bufferSize:FFT_N};
+};
diff --git a/web/static/js/mp3-engine.js b/web/static/js/mp3-engine.js
new file mode 100644
index 0000000..7e6e0b3
--- /dev/null
+++ b/web/static/js/mp3-engine.js
@@ -0,0 +1,14173 @@
+/*
+mp3编码器用到的lamejs编码引擎，一般都用MP3格式，浏览器支持广泛，此引擎测试的也比较多，稳定
+https://github.com/xiangyuecn/Recorder
+*/
+(function(){
+"use strict";
+
+//end2 ****开始copy lamejs*****
+/*
+mp3编码依赖lamejs，如果无需mp3支持直接移除此代码
+https://github.com/zhuker/lamejs/blob/bfb7f6c6d7877e0fe1ad9e72697a871676119a0e/lame.all.js
+*/
+
+function lamejs() {
+var Math_log10=function(s){//坚决不能用也不要报语言问题的错误
+	return Math.log(s)/Math.log(10);
+};
+
+function new_byte(count) {
+    return new Int8Array(count);
+}
+
+function new_short(count) {
+    return new Int16Array(count);
+}
+
+function new_int(count) {
+    return new Int32Array(count);
+}
+
+function new_float(count) {
+    return new Float32Array(count);
+}
+
+function new_double(count) {
+    return new Float64Array(count);
+}
+
+function new_float_n(args) {
+    if (args.length == 1) {
+        return new_float(args[0]);
+    }
+    var sz = args[0];
+    args = args.slice(1);
+    var A = [];
+    for (var i = 0; i < sz; i++) {
+        A.push(new_float_n(args));
+    }
+    return A;
+}
+function new_int_n(args) {
+    if (args.length == 1) {
+        return new_int(args[0]);
+    }
+    var sz = args[0];
+    args = args.slice(1);
+    var A = [];
+    for (var i = 0; i < sz; i++) {
+        A.push(new_int_n(args));
+    }
+    return A;
+}
+
+function new_short_n(args) {
+    if (args.length == 1) {
+        return new_short(args[0]);
+    }
+    var sz = args[0];
+    args = args.slice(1);
+    var A = [];
+    for (var i = 0; i < sz; i++) {
+        A.push(new_short_n(args));
+    }
+    return A;
+}
+
+function new_array_n(args) {
+    if (args.length == 1) {
+        return new Array(args[0]);
+    }
+    var sz = args[0];
+    args = args.slice(1);
+    var A = [];
+    for (var i = 0; i < sz; i++) {
+        A.push(new_array_n(args));
+    }
+    return A;
+}
+
+
+var Arrays = {};
+
+Arrays.fill = function (a, fromIndex, toIndex, val) {
+    if (arguments.length == 2) {
+        for (var i = 0; i < a.length; i++) {
+            a[i] = arguments[1];
+        }
+    } else {
+        for (var i = fromIndex; i < toIndex; i++) {
+            a[i] = val;
+        }
+    }
+};
+
+var System = {};
+
+System.arraycopy = function (src, srcPos, dest, destPos, length) {
+    var srcEnd = srcPos + length;
+    while (srcPos < srcEnd)
+        dest[destPos++] = src[srcPos++];
+};
+
+
+var Util = {};
+Util.SQRT2 = 1.41421356237309504880;
+Util.FAST_LOG10 = function (x) {
+    return Math_log10(x);
+};
+
+Util.FAST_LOG10_X = function (x, y) {
+    return Math_log10(x) * y;
+};
+
+function ShortBlock(ordinal) {
+    this.ordinal = ordinal;
+}
+/**
+ * LAME may use them, even different block types for L/R.
+ */
+ShortBlock.short_block_allowed = new ShortBlock(0);
+/**
+ * LAME may use them, but always same block types in L/R.
+ */
+ShortBlock.short_block_coupled = new ShortBlock(1);
+/**
+ * LAME will not use short blocks, long blocks only.
+ */
+ShortBlock.short_block_dispensed = new ShortBlock(2);
+/**
+ * LAME will not use long blocks, short blocks only.
+ */
+ShortBlock.short_block_forced = new ShortBlock(3);
+
+var Float = {};
+Float.MAX_VALUE = 3.4028235e+38;
+
+function VbrMode(ordinal) {
+    this.ordinal = ordinal;
+}
+VbrMode.vbr_off = new VbrMode(0);
+VbrMode.vbr_mt = new VbrMode(1);
+VbrMode.vbr_rh = new VbrMode(2);
+VbrMode.vbr_abr = new VbrMode(3);
+VbrMode.vbr_mtrh = new VbrMode(4);
+VbrMode.vbr_default = VbrMode.vbr_mtrh;
+
+var assert = function (x) {
+    //console.assert(x);
+};
+
+var module_exports = {
+    "System": System,
+    "VbrMode": VbrMode,
+    "Float": Float,
+    "ShortBlock": ShortBlock,
+    "Util": Util,
+    "Arrays": Arrays,
+    "new_array_n": new_array_n,
+    "new_byte": new_byte,
+    "new_double": new_double,
+    "new_float": new_float,
+    "new_float_n": new_float_n,
+    "new_int": new_int,
+    "new_int_n": new_int_n,
+    "new_short": new_short,
+    "new_short_n": new_short_n,
+    "assert": assert
+};
+//package mp3;
+
+/* MPEG modes */
+function MPEGMode(ordinal) {
+    var _ordinal = ordinal;
+    this.ordinal = function () {
+        return _ordinal;
+    }
+}
+
+MPEGMode.STEREO = new MPEGMode(0);
+MPEGMode.JOINT_STEREO = new MPEGMode(1);
+MPEGMode.DUAL_CHANNEL = new MPEGMode(2);
+MPEGMode.MONO = new MPEGMode(3);
+MPEGMode.NOT_SET = new MPEGMode(4);
+
+function Version() {
+
+    /**
+     * URL for the LAME website.
+     */
+    var LAME_URL = "http://www.mp3dev.org/";
+
+    /**
+     * Major version number.
+     */
+    var LAME_MAJOR_VERSION = 3;
+    /**
+     * Minor version number.
+     */
+    var LAME_MINOR_VERSION = 98;
+    /**
+     * Patch level.
+     */
+    var LAME_PATCH_VERSION = 4;
+
+    /**
+     * Major version number.
+     */
+    var PSY_MAJOR_VERSION = 0;
+    /**
+     * Minor version number.
+     */
+    var PSY_MINOR_VERSION = 93;
+
+    /**
+     * A string which describes the version of LAME.
+     *
+     * @return string which describes the version of LAME
+     */
+    this.getLameVersion = function () {
+        // primary to write screen reports
+        return (LAME_MAJOR_VERSION + "." + LAME_MINOR_VERSION + "." + LAME_PATCH_VERSION);
+    }
+
+    /**
+     * The short version of the LAME version string.
+     *
+     * @return short version of the LAME version string
+     */
+    this.getLameShortVersion = function () {
+        // Adding date and time to version string makes it harder for output
+        // validation
+        return (LAME_MAJOR_VERSION + "." + LAME_MINOR_VERSION + "." + LAME_PATCH_VERSION);
+    }
+
+    /**
+     * The shortest version of the LAME version string.
+     *
+     * @return shortest version of the LAME version string
+     */
+    this.getLameVeryShortVersion = function () {
+        // Adding date and time to version string makes it harder for output
+        return ("LAME" + LAME_MAJOR_VERSION + "." + LAME_MINOR_VERSION + "r");
+    }
+
+    /**
+     * String which describes the version of GPSYCHO
+     *
+     * @return string which describes the version of GPSYCHO
+     */
+    this.getPsyVersion = function () {
+        return (PSY_MAJOR_VERSION + "." + PSY_MINOR_VERSION);
+    }
+
+    /**
+     * String which is a URL for the LAME website.
+     *
+     * @return string which is a URL for the LAME website
+     */
+    this.getLameUrl = function () {
+        return LAME_URL;
+    }
+
+    /**
+     * Quite useless for a java version, however we are compatible ;-)
+     *
+     * @return "32bits"
+     */
+    this.getLameOsBitness = function () {
+        return "32bits";
+    }
+
+}
+
+/*
+ *	MP3 huffman table selecting and bit counting
+ *
+ *	Copyright (c) 1999-2005 Takehiro TOMINAGA
+ *	Copyright (c) 2002-2005 Gabriel Bouvigne
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/* $Id: Takehiro.java,v 1.26 2011/05/24 20:48:06 kenchis Exp $ */
+
+//package mp3;
+
+//import java.util.Arrays;
+
+
+
+function Takehiro() {
+
+    var qupvt = null;
+    this.qupvt = null;
+
+    this.setModules = function (_qupvt) {
+        this.qupvt = _qupvt;
+        qupvt = _qupvt;
+    }
+
+    function Bits(b) {
+        this.bits = 0 | b;
+    }
+
+    var subdv_table = [[0, 0], /* 0 bands */
+        [0, 0], /* 1 bands */
+        [0, 0], /* 2 bands */
+        [0, 0], /* 3 bands */
+        [0, 0], /* 4 bands */
+        [0, 1], /* 5 bands */
+        [1, 1], /* 6 bands */
+        [1, 1], /* 7 bands */
+        [1, 2], /* 8 bands */
+        [2, 2], /* 9 bands */
+        [2, 3], /* 10 bands */
+        [2, 3], /* 11 bands */
+        [3, 4], /* 12 bands */
+        [3, 4], /* 13 bands */
+        [3, 4], /* 14 bands */
+        [4, 5], /* 15 bands */
+        [4, 5], /* 16 bands */
+        [4, 6], /* 17 bands */
+        [5, 6], /* 18 bands */
+        [5, 6], /* 19 bands */
+        [5, 7], /* 20 bands */
+        [6, 7], /* 21 bands */
+        [6, 7], /* 22 bands */
+    ];
+
+
+    /**
+     * nonlinear quantization of xr More accurate formula than the ISO formula.
+     * Takes into account the fact that we are quantizing xr . ix, but we want
+     * ix^4/3 to be as close as possible to x^4/3. (taking the nearest int would
+     * mean ix is as close as possible to xr, which is different.)
+     *
+     * From Segher Boessenkool <segher@eastsite.nl> 11/1999
+     *
+     * 09/2000: ASM code removed in favor of IEEE754 hack by Takehiro Tominaga.
+     * If you need the ASM code, check CVS circa Aug 2000.
+     *
+     * 01/2004: Optimizations by Gabriel Bouvigne
+     */
+    function quantize_lines_xrpow_01(l, istep, xr, xrPos, ix, ixPos) {
+        var compareval0 = (1.0 - 0.4054) / istep;
+
+        l = l >> 1;
+        while ((l--) != 0) {
+            ix[ixPos++] = (compareval0 > xr[xrPos++]) ? 0 : 1;
+            ix[ixPos++] = (compareval0 > xr[xrPos++]) ? 0 : 1;
+        }
+    }
+
+    /**
+     * XRPOW_FTOI is a macro to convert floats to ints.<BR>
+     * if XRPOW_FTOI(x) = nearest_int(x), then QUANTFAC(x)=adj43asm[x]<BR>
+     * ROUNDFAC= -0.0946<BR>
+     *
+     * if XRPOW_FTOI(x) = floor(x), then QUANTFAC(x)=asj43[x]<BR>
+     * ROUNDFAC=0.4054<BR>
+     *
+     * Note: using floor() or 0| is extremely slow. On machines where the
+     * TAKEHIRO_IEEE754_HACK code above does not work, it is worthwile to write
+     * some ASM for XRPOW_FTOI().
+     */
+    function quantize_lines_xrpow(l, istep, xr, xrPos, ix, ixPos) {
+
+        l = l >> 1;
+        var remaining = l % 2;
+        l = l >> 1;
+        while (l-- != 0) {
+            var x0, x1, x2, x3;
+            var rx0, rx1, rx2, rx3;
+
+            x0 = xr[xrPos++] * istep;
+            x1 = xr[xrPos++] * istep;
+            rx0 = 0 | x0;
+            x2 = xr[xrPos++] * istep;
+            rx1 = 0 | x1;
+            x3 = xr[xrPos++] * istep;
+            rx2 = 0 | x2;
+            x0 += qupvt.adj43[rx0];
+            rx3 = 0 | x3;
+            x1 += qupvt.adj43[rx1];
+            ix[ixPos++] = 0 | x0;
+            x2 += qupvt.adj43[rx2];
+            ix[ixPos++] = 0 | x1;
+            x3 += qupvt.adj43[rx3];
+            ix[ixPos++] = 0 | x2;
+            ix[ixPos++] = 0 | x3;
+        }
+        if (remaining != 0) {
+            var x0, x1;
+            var rx0, rx1;
+
+            x0 = xr[xrPos++] * istep;
+            x1 = xr[xrPos++] * istep;
+            rx0 = 0 | x0;
+            rx1 = 0 | x1;
+            x0 += qupvt.adj43[rx0];
+            x1 += qupvt.adj43[rx1];
+            ix[ixPos++] = 0 | x0;
+            ix[ixPos++] = 0 | x1;
+        }
+    }
+
+    /**
+     * Quantization function This function will select which lines to quantize
+     * and call the proper quantization function
+     */
+    function quantize_xrpow(xp, pi, istep, codInfo, prevNoise) {
+        /* quantize on xr^(3/4) instead of xr */
+        var sfb;
+        var sfbmax;
+        var j = 0;
+        var prev_data_use;
+        var accumulate = 0;
+        var accumulate01 = 0;
+        var xpPos = 0;
+        var iData = pi;
+        var iDataPos = 0;
+        var acc_iData = iData;
+        var acc_iDataPos = 0;
+        var acc_xp = xp;
+        var acc_xpPos = 0;
+
+        /*
+         * Reusing previously computed data does not seems to work if global
+         * gain is changed. Finding why it behaves this way would allow to use a
+         * cache of previously computed values (let's 10 cached values per sfb)
+         * that would probably provide a noticeable speedup
+         */
+        prev_data_use = (prevNoise != null && (codInfo.global_gain == prevNoise.global_gain));
+
+        if (codInfo.block_type == Encoder.SHORT_TYPE)
+            sfbmax = 38;
+        else
+            sfbmax = 21;
+
+        for (sfb = 0; sfb <= sfbmax; sfb++) {
+            var step = -1;
+
+            if (prev_data_use || codInfo.block_type == Encoder.NORM_TYPE) {
+                step = codInfo.global_gain
+                    - ((codInfo.scalefac[sfb] + (codInfo.preflag != 0 ? qupvt.pretab[sfb]
+                        : 0)) << (codInfo.scalefac_scale + 1))
+                    - codInfo.subblock_gain[codInfo.window[sfb]] * 8;
+            }
+            if (prev_data_use && (prevNoise.step[sfb] == step)) {
+                /*
+                 * do not recompute this part, but compute accumulated lines
+                 */
+                if (accumulate != 0) {
+                    quantize_lines_xrpow(accumulate, istep, acc_xp, acc_xpPos,
+                        acc_iData, acc_iDataPos);
+                    accumulate = 0;
+                }
+                if (accumulate01 != 0) {
+                    quantize_lines_xrpow_01(accumulate01, istep, acc_xp,
+                        acc_xpPos, acc_iData, acc_iDataPos);
+                    accumulate01 = 0;
+                }
+            } else { /* should compute this part */
+                var l = codInfo.width[sfb];
+
+                if ((j + codInfo.width[sfb]) > codInfo.max_nonzero_coeff) {
+                    /* do not compute upper zero part */
+                    var usefullsize;
+                    usefullsize = codInfo.max_nonzero_coeff - j + 1;
+                    Arrays.fill(pi, codInfo.max_nonzero_coeff, 576, 0);
+                    l = usefullsize;
+
+                    if (l < 0) {
+                        l = 0;
+                    }
+
+                    /* no need to compute higher sfb values */
+                    sfb = sfbmax + 1;
+                }
+
+                /* accumulate lines to quantize */
+                if (0 == accumulate && 0 == accumulate01) {
+                    acc_iData = iData;
+                    acc_iDataPos = iDataPos;
+                    acc_xp = xp;
+                    acc_xpPos = xpPos;
+                }
+                if (prevNoise != null && prevNoise.sfb_count1 > 0
+                    && sfb >= prevNoise.sfb_count1
+                    && prevNoise.step[sfb] > 0
+                    && step >= prevNoise.step[sfb]) {
+
+                    if (accumulate != 0) {
+                        quantize_lines_xrpow(accumulate, istep, acc_xp,
+                            acc_xpPos, acc_iData, acc_iDataPos);
+                        accumulate = 0;
+                        acc_iData = iData;
+                        acc_iDataPos = iDataPos;
+                        acc_xp = xp;
+                        acc_xpPos = xpPos;
+                    }
+                    accumulate01 += l;
+                } else {
+                    if (accumulate01 != 0) {
+                        quantize_lines_xrpow_01(accumulate01, istep, acc_xp,
+                            acc_xpPos, acc_iData, acc_iDataPos);
+                        accumulate01 = 0;
+                        acc_iData = iData;
+                        acc_iDataPos = iDataPos;
+                        acc_xp = xp;
+                        acc_xpPos = xpPos;
+                    }
+                    accumulate += l;
+                }
+
+                if (l <= 0) {
+                    /*
+                     * rh: 20040215 may happen due to "prev_data_use"
+                     * optimization
+                     */
+                    if (accumulate01 != 0) {
+                        quantize_lines_xrpow_01(accumulate01, istep, acc_xp,
+                            acc_xpPos, acc_iData, acc_iDataPos);
+                        accumulate01 = 0;
+                    }
+                    if (accumulate != 0) {
+                        quantize_lines_xrpow(accumulate, istep, acc_xp,
+                            acc_xpPos, acc_iData, acc_iDataPos);
+                        accumulate = 0;
+                    }
+
+                    break;
+                    /* ends for-loop */
+                }
+            }
+            if (sfb <= sfbmax) {
+                iDataPos += codInfo.width[sfb];
+                xpPos += codInfo.width[sfb];
+                j += codInfo.width[sfb];
+            }
+        }
+        if (accumulate != 0) { /* last data part */
+            quantize_lines_xrpow(accumulate, istep, acc_xp, acc_xpPos,
+                acc_iData, acc_iDataPos);
+            accumulate = 0;
+        }
+        if (accumulate01 != 0) { /* last data part */
+            quantize_lines_xrpow_01(accumulate01, istep, acc_xp, acc_xpPos,
+                acc_iData, acc_iDataPos);
+            accumulate01 = 0;
+        }
+
+    }
+
+    /**
+     * ix_max
+     */
+    function ix_max(ix, ixPos, endPos) {
+        var max1 = 0, max2 = 0;
+
+        do {
+            var x1 = ix[ixPos++];
+            var x2 = ix[ixPos++];
+            if (max1 < x1)
+                max1 = x1;
+
+            if (max2 < x2)
+                max2 = x2;
+        } while (ixPos < endPos);
+        if (max1 < max2)
+            max1 = max2;
+        return max1;
+    }
+
+    function count_bit_ESC(ix, ixPos, end, t1, t2, s) {
+        /* ESC-table is used */
+        var linbits = Tables.ht[t1].xlen * 65536 + Tables.ht[t2].xlen;
+        var sum = 0, sum2;
+
+        do {
+            var x = ix[ixPos++];
+            var y = ix[ixPos++];
+
+            if (x != 0) {
+                if (x > 14) {
+                    x = 15;
+                    sum += linbits;
+                }
+                x *= 16;
+            }
+
+            if (y != 0) {
+                if (y > 14) {
+                    y = 15;
+                    sum += linbits;
+                }
+                x += y;
+            }
+
+            sum += Tables.largetbl[x];
+        } while (ixPos < end);
+
+        sum2 = sum & 0xffff;
+        sum >>= 16;
+
+        if (sum > sum2) {
+            sum = sum2;
+            t1 = t2;
+        }
+
+        s.bits += sum;
+        return t1;
+    }
+
+    function count_bit_noESC(ix, ixPos, end, s) {
+        /* No ESC-words */
+        var sum1 = 0;
+        var hlen1 = Tables.ht[1].hlen;
+
+        do {
+            var x = ix[ixPos + 0] * 2 + ix[ixPos + 1];
+            ixPos += 2;
+            sum1 += hlen1[x];
+        } while (ixPos < end);
+
+        s.bits += sum1;
+        return 1;
+    }
+
+    function count_bit_noESC_from2(ix, ixPos, end, t1, s) {
+        /* No ESC-words */
+        var sum = 0, sum2;
+        var xlen = Tables.ht[t1].xlen;
+        var hlen;
+        if (t1 == 2)
+            hlen = Tables.table23;
+        else
+            hlen = Tables.table56;
+
+        do {
+            var x = ix[ixPos + 0] * xlen + ix[ixPos + 1];
+            ixPos += 2;
+            sum += hlen[x];
+        } while (ixPos < end);
+
+        sum2 = sum & 0xffff;
+        sum >>= 16;
+
+        if (sum > sum2) {
+            sum = sum2;
+            t1++;
+        }
+
+        s.bits += sum;
+        return t1;
+    }
+
+    function count_bit_noESC_from3(ix, ixPos, end, t1, s) {
+        /* No ESC-words */
+        var sum1 = 0;
+        var sum2 = 0;
+        var sum3 = 0;
+        var xlen = Tables.ht[t1].xlen;
+        var hlen1 = Tables.ht[t1].hlen;
+        var hlen2 = Tables.ht[t1 + 1].hlen;
+        var hlen3 = Tables.ht[t1 + 2].hlen;
+
+        do {
+            var x = ix[ixPos + 0] * xlen + ix[ixPos + 1];
+            ixPos += 2;
+            sum1 += hlen1[x];
+            sum2 += hlen2[x];
+            sum3 += hlen3[x];
+        } while (ixPos < end);
+        var t = t1;
+        if (sum1 > sum2) {
+            sum1 = sum2;
+            t++;
+        }
+        if (sum1 > sum3) {
+            sum1 = sum3;
+            t = t1 + 2;
+        }
+        s.bits += sum1;
+
+        return t;
+    }
+
+    /*************************************************************************/
+    /* choose table */
+    /*************************************************************************/
+
+    var huf_tbl_noESC = [1, 2, 5, 7, 7, 10, 10, 13, 13,
+        13, 13, 13, 13, 13, 13];
+
+    /**
+     * Choose the Huffman table that will encode ix[begin..end] with the fewest
+     * bits.
+     *
+     * Note: This code contains knowledge about the sizes and characteristics of
+     * the Huffman tables as defined in the IS (Table B.7), and will not work
+     * with any arbitrary tables.
+     */
+    function choose_table(ix, ixPos, endPos, s) {
+        var max = ix_max(ix, ixPos, endPos);
+
+        switch (max) {
+            case 0:
+                return max;
+
+            case 1:
+                return count_bit_noESC(ix, ixPos, endPos, s);
+
+            case 2:
+            case 3:
+                return count_bit_noESC_from2(ix, ixPos, endPos,
+                    huf_tbl_noESC[max - 1], s);
+
+            case 4:
+            case 5:
+            case 6:
+            case 7:
+            case 8:
+            case 9:
+            case 10:
+            case 11:
+            case 12:
+            case 13:
+            case 14:
+            case 15:
+                return count_bit_noESC_from3(ix, ixPos, endPos,
+                    huf_tbl_noESC[max - 1], s);
+
+            default:
+                /* try tables with linbits */
+                if (max > QuantizePVT.IXMAX_VAL) {
+                    s.bits = QuantizePVT.LARGE_BITS;
+                    return -1;
+                }
+                max -= 15;
+                var choice2;
+                for (choice2 = 24; choice2 < 32; choice2++) {
+                    if (Tables.ht[choice2].linmax >= max) {
+                        break;
+                    }
+                }
+                var choice;
+                for (choice = choice2 - 8; choice < 24; choice++) {
+                    if (Tables.ht[choice].linmax >= max) {
+                        break;
+                    }
+                }
+                return count_bit_ESC(ix, ixPos, endPos, choice, choice2, s);
+        }
+    }
+
+    /**
+     * count_bit
+     */
+    this.noquant_count_bits = function (gfc, gi, prev_noise) {
+        var ix = gi.l3_enc;
+        var i = Math.min(576, ((gi.max_nonzero_coeff + 2) >> 1) << 1);
+
+        if (prev_noise != null)
+            prev_noise.sfb_count1 = 0;
+
+        /* Determine count1 region */
+        for (; i > 1; i -= 2)
+            if ((ix[i - 1] | ix[i - 2]) != 0)
+                break;
+        gi.count1 = i;
+
+        /* Determines the number of bits to encode the quadruples. */
+        var a1 = 0;
+        var a2 = 0;
+        for (; i > 3; i -= 4) {
+            var p;
+            /* hack to check if all values <= 1 */
+            //throw "TODO: HACK         if ((((long) ix[i - 1] | (long) ix[i - 2] | (long) ix[i - 3] | (long) ix[i - 4]) & 0xffffffffL) > 1L        "
+            //if (true) {
+            if (((ix[i - 1] | ix[i - 2] | ix[i - 3] | ix[i - 4]) & 0x7fffffff) > 1) {
+                break;
+            }
+            p = ((ix[i - 4] * 2 + ix[i - 3]) * 2 + ix[i - 2]) * 2 + ix[i - 1];
+            a1 += Tables.t32l[p];
+            a2 += Tables.t33l[p];
+        }
+        var bits = a1;
+        gi.count1table_select = 0;
+        if (a1 > a2) {
+            bits = a2;
+            gi.count1table_select = 1;
+        }
+
+        gi.count1bits = bits;
+        gi.big_values = i;
+        if (i == 0)
+            return bits;
+
+        if (gi.block_type == Encoder.SHORT_TYPE) {
+            a1 = 3 * gfc.scalefac_band.s[3];
+            if (a1 > gi.big_values)
+                a1 = gi.big_values;
+            a2 = gi.big_values;
+
+        } else if (gi.block_type == Encoder.NORM_TYPE) {
+            /* bv_scf has 576 entries (0..575) */
+            a1 = gi.region0_count = gfc.bv_scf[i - 2];
+            a2 = gi.region1_count = gfc.bv_scf[i - 1];
+
+            a2 = gfc.scalefac_band.l[a1 + a2 + 2];
+            a1 = gfc.scalefac_band.l[a1 + 1];
+            if (a2 < i) {
+                var bi = new Bits(bits);
+                gi.table_select[2] = choose_table(ix, a2, i, bi);
+                bits = bi.bits;
+            }
+        } else {
+            gi.region0_count = 7;
+            /* gi.region1_count = SBPSY_l - 7 - 1; */
+            gi.region1_count = Encoder.SBMAX_l - 1 - 7 - 1;
+            a1 = gfc.scalefac_band.l[7 + 1];
+            a2 = i;
+            if (a1 > a2) {
+                a1 = a2;
+            }
+        }
+
+        /* have to allow for the case when bigvalues < region0 < region1 */
+        /* (and region0, region1 are ignored) */
+        a1 = Math.min(a1, i);
+        a2 = Math.min(a2, i);
+
+
+        /* Count the number of bits necessary to code the bigvalues region. */
+        if (0 < a1) {
+            var bi = new Bits(bits);
+            gi.table_select[0] = choose_table(ix, 0, a1, bi);
+            bits = bi.bits;
+        }
+        if (a1 < a2) {
+            var bi = new Bits(bits);
+            gi.table_select[1] = choose_table(ix, a1, a2, bi);
+            bits = bi.bits;
+        }
+        if (gfc.use_best_huffman == 2) {
+            gi.part2_3_length = bits;
+            best_huffman_divide(gfc, gi);
+            bits = gi.part2_3_length;
+        }
+
+        if (prev_noise != null) {
+            if (gi.block_type == Encoder.NORM_TYPE) {
+                var sfb = 0;
+                while (gfc.scalefac_band.l[sfb] < gi.big_values) {
+                    sfb++;
+                }
+                prev_noise.sfb_count1 = sfb;
+            }
+        }
+
+        return bits;
+    }
+
+    this.count_bits = function (gfc, xr, gi, prev_noise) {
+        var ix = gi.l3_enc;
+
+        /* since quantize_xrpow uses table lookup, we need to check this first: */
+        var w = (QuantizePVT.IXMAX_VAL) / qupvt.IPOW20(gi.global_gain);
+
+        if (gi.xrpow_max > w)
+            return QuantizePVT.LARGE_BITS;
+
+        quantize_xrpow(xr, ix, qupvt.IPOW20(gi.global_gain), gi, prev_noise);
+
+        if ((gfc.substep_shaping & 2) != 0) {
+            var j = 0;
+            /* 0.634521682242439 = 0.5946*2**(.5*0.1875) */
+            var gain = gi.global_gain + gi.scalefac_scale;
+            var roundfac = 0.634521682242439 / qupvt.IPOW20(gain);
+            for (var sfb = 0; sfb < gi.sfbmax; sfb++) {
+                var width = gi.width[sfb];
+                if (0 == gfc.pseudohalf[sfb]) {
+                    j += width;
+                } else {
+                    var k;
+                    for (k = j, j += width; k < j; ++k) {
+                        ix[k] = (xr[k] >= roundfac) ? ix[k] : 0;
+                    }
+                }
+            }
+        }
+        return this.noquant_count_bits(gfc, gi, prev_noise);
+    }
+
+    /**
+     * re-calculate the best scalefac_compress using scfsi the saved bits are
+     * kept in the bit reservoir.
+     */
+    function recalc_divide_init(gfc, cod_info, ix, r01_bits, r01_div, r0_tbl, r1_tbl) {
+        var bigv = cod_info.big_values;
+
+        for (var r0 = 0; r0 <= 7 + 15; r0++) {
+            r01_bits[r0] = QuantizePVT.LARGE_BITS;
+        }
+
+        for (var r0 = 0; r0 < 16; r0++) {
+            var a1 = gfc.scalefac_band.l[r0 + 1];
+            if (a1 >= bigv)
+                break;
+            var r0bits = 0;
+            var bi = new Bits(r0bits);
+            var r0t = choose_table(ix, 0, a1, bi);
+            r0bits = bi.bits;
+
+            for (var r1 = 0; r1 < 8; r1++) {
+                var a2 = gfc.scalefac_band.l[r0 + r1 + 2];
+                if (a2 >= bigv)
+                    break;
+                var bits = r0bits;
+                bi = new Bits(bits);
+                var r1t = choose_table(ix, a1, a2, bi);
+                bits = bi.bits;
+                if (r01_bits[r0 + r1] > bits) {
+                    r01_bits[r0 + r1] = bits;
+                    r01_div[r0 + r1] = r0;
+                    r0_tbl[r0 + r1] = r0t;
+                    r1_tbl[r0 + r1] = r1t;
+                }
+            }
+        }
+    }
+
+    function recalc_divide_sub(gfc, cod_info2, gi, ix, r01_bits, r01_div, r0_tbl, r1_tbl) {
+        var bigv = cod_info2.big_values;
+
+        for (var r2 = 2; r2 < Encoder.SBMAX_l + 1; r2++) {
+            var a2 = gfc.scalefac_band.l[r2];
+            if (a2 >= bigv)
+                break;
+            var bits = r01_bits[r2 - 2] + cod_info2.count1bits;
+            if (gi.part2_3_length <= bits)
+                break;
+
+            var bi = new Bits(bits);
+            var r2t = choose_table(ix, a2, bigv, bi);
+            bits = bi.bits;
+            if (gi.part2_3_length <= bits)
+                continue;
+
+            gi.assign(cod_info2);
+            gi.part2_3_length = bits;
+            gi.region0_count = r01_div[r2 - 2];
+            gi.region1_count = r2 - 2 - r01_div[r2 - 2];
+            gi.table_select[0] = r0_tbl[r2 - 2];
+            gi.table_select[1] = r1_tbl[r2 - 2];
+            gi.table_select[2] = r2t;
+        }
+    }
+
+    this.best_huffman_divide = function (gfc, gi) {
+        var cod_info2 = new GrInfo();
+        var ix = gi.l3_enc;
+        var r01_bits = new_int(7 + 15 + 1);
+        var r01_div = new_int(7 + 15 + 1);
+        var r0_tbl = new_int(7 + 15 + 1);
+        var r1_tbl = new_int(7 + 15 + 1);
+
+        /* SHORT BLOCK stuff fails for MPEG2 */
+        if (gi.block_type == Encoder.SHORT_TYPE && gfc.mode_gr == 1)
+            return;
+
+        cod_info2.assign(gi);
+        if (gi.block_type == Encoder.NORM_TYPE) {
+            recalc_divide_init(gfc, gi, ix, r01_bits, r01_div, r0_tbl, r1_tbl);
+            recalc_divide_sub(gfc, cod_info2, gi, ix, r01_bits, r01_div,
+                r0_tbl, r1_tbl);
+        }
+        var i = cod_info2.big_values;
+        if (i == 0 || (ix[i - 2] | ix[i - 1]) > 1)
+            return;
+
+        i = gi.count1 + 2;
+        if (i > 576)
+            return;
+
+        /* Determines the number of bits to encode the quadruples. */
+        cod_info2.assign(gi);
+        cod_info2.count1 = i;
+        var a1 = 0;
+        var a2 = 0;
+
+
+        for (; i > cod_info2.big_values; i -= 4) {
+            var p = ((ix[i - 4] * 2 + ix[i - 3]) * 2 + ix[i - 2]) * 2
+                + ix[i - 1];
+            a1 += Tables.t32l[p];
+            a2 += Tables.t33l[p];
+        }
+        cod_info2.big_values = i;
+
+        cod_info2.count1table_select = 0;
+        if (a1 > a2) {
+            a1 = a2;
+            cod_info2.count1table_select = 1;
+        }
+
+        cod_info2.count1bits = a1;
+
+        if (cod_info2.block_type == Encoder.NORM_TYPE)
+            recalc_divide_sub(gfc, cod_info2, gi, ix, r01_bits, r01_div,
+                r0_tbl, r1_tbl);
+        else {
+            /* Count the number of bits necessary to code the bigvalues region. */
+            cod_info2.part2_3_length = a1;
+            a1 = gfc.scalefac_band.l[7 + 1];
+            if (a1 > i) {
+                a1 = i;
+            }
+            if (a1 > 0) {
+                var bi = new Bits(cod_info2.part2_3_length);
+                cod_info2.table_select[0] = choose_table(ix, 0, a1, bi);
+                cod_info2.part2_3_length = bi.bits;
+            }
+            if (i > a1) {
+                var bi = new Bits(cod_info2.part2_3_length);
+                cod_info2.table_select[1] = choose_table(ix, a1, i, bi);
+                cod_info2.part2_3_length = bi.bits;
+            }
+            if (gi.part2_3_length > cod_info2.part2_3_length)
+                gi.assign(cod_info2);
+        }
+    }
+
+    var slen1_n = [1, 1, 1, 1, 8, 2, 2, 2, 4, 4, 4, 8, 8, 8, 16, 16];
+    var slen2_n = [1, 2, 4, 8, 1, 2, 4, 8, 2, 4, 8, 2, 4, 8, 4, 8];
+    var slen1_tab = [0, 0, 0, 0, 3, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4];
+    var slen2_tab = [0, 1, 2, 3, 0, 1, 2, 3, 1, 2, 3, 1, 2, 3, 2, 3];
+    Takehiro.slen1_tab = slen1_tab;
+    Takehiro.slen2_tab = slen2_tab;
+
+    function scfsi_calc(ch, l3_side) {
+        var sfb;
+        var gi = l3_side.tt[1][ch];
+        var g0 = l3_side.tt[0][ch];
+
+        for (var i = 0; i < Tables.scfsi_band.length - 1; i++) {
+            for (sfb = Tables.scfsi_band[i]; sfb < Tables.scfsi_band[i + 1]; sfb++) {
+                if (g0.scalefac[sfb] != gi.scalefac[sfb]
+                    && gi.scalefac[sfb] >= 0)
+                    break;
+            }
+            if (sfb == Tables.scfsi_band[i + 1]) {
+                for (sfb = Tables.scfsi_band[i]; sfb < Tables.scfsi_band[i + 1]; sfb++) {
+                    gi.scalefac[sfb] = -1;
+                }
+                l3_side.scfsi[ch][i] = 1;
+            }
+        }
+        var s1 = 0;
+        var c1 = 0;
+        for (sfb = 0; sfb < 11; sfb++) {
+            if (gi.scalefac[sfb] == -1)
+                continue;
+            c1++;
+            if (s1 < gi.scalefac[sfb])
+                s1 = gi.scalefac[sfb];
+        }
+        var s2 = 0;
+        var c2 = 0;
+        for (; sfb < Encoder.SBPSY_l; sfb++) {
+            if (gi.scalefac[sfb] == -1)
+                continue;
+            c2++;
+            if (s2 < gi.scalefac[sfb])
+                s2 = gi.scalefac[sfb];
+        }
+
+        for (var i = 0; i < 16; i++) {
+            if (s1 < slen1_n[i] && s2 < slen2_n[i]) {
+                var c = slen1_tab[i] * c1 + slen2_tab[i] * c2;
+                if (gi.part2_length > c) {
+                    gi.part2_length = c;
+                    gi.scalefac_compress = i;
+                }
+            }
+        }
+    }
+
+    /**
+     * Find the optimal way to store the scalefactors. Only call this routine
+     * after final scalefactors have been chosen and the channel/granule will
+     * not be re-encoded.
+     */
+    this.best_scalefac_store = function (gfc, gr, ch, l3_side) {
+        /* use scalefac_scale if we can */
+        var gi = l3_side.tt[gr][ch];
+        var sfb, i, j, l;
+        var recalc = 0;
+
+        /*
+         * remove scalefacs from bands with ix=0. This idea comes from the AAC
+         * ISO docs. added mt 3/00
+         */
+        /* check if l3_enc=0 */
+        j = 0;
+        for (sfb = 0; sfb < gi.sfbmax; sfb++) {
+            var width = gi.width[sfb];
+            j += width;
+            for (l = -width; l < 0; l++) {
+                if (gi.l3_enc[l + j] != 0)
+                    break;
+            }
+            if (l == 0)
+                gi.scalefac[sfb] = recalc = -2;
+            /* anything goes. */
+            /*
+             * only best_scalefac_store and calc_scfsi know--and only they
+             * should know--about the magic number -2.
+             */
+        }
+
+        if (0 == gi.scalefac_scale && 0 == gi.preflag) {
+            var s = 0;
+            for (sfb = 0; sfb < gi.sfbmax; sfb++)
+                if (gi.scalefac[sfb] > 0)
+                    s |= gi.scalefac[sfb];
+
+            if (0 == (s & 1) && s != 0) {
+                for (sfb = 0; sfb < gi.sfbmax; sfb++)
+                    if (gi.scalefac[sfb] > 0)
+                        gi.scalefac[sfb] >>= 1;
+
+                gi.scalefac_scale = recalc = 1;
+            }
+        }
+
+        if (0 == gi.preflag && gi.block_type != Encoder.SHORT_TYPE
+            && gfc.mode_gr == 2) {
+            for (sfb = 11; sfb < Encoder.SBPSY_l; sfb++)
+                if (gi.scalefac[sfb] < qupvt.pretab[sfb]
+                    && gi.scalefac[sfb] != -2)
+                    break;
+            if (sfb == Encoder.SBPSY_l) {
+                for (sfb = 11; sfb < Encoder.SBPSY_l; sfb++)
+                    if (gi.scalefac[sfb] > 0)
+                        gi.scalefac[sfb] -= qupvt.pretab[sfb];
+
+                gi.preflag = recalc = 1;
+            }
+        }
+
+        for (i = 0; i < 4; i++)
+            l3_side.scfsi[ch][i] = 0;
+
+        if (gfc.mode_gr == 2 && gr == 1
+            && l3_side.tt[0][ch].block_type != Encoder.SHORT_TYPE
+            && l3_side.tt[1][ch].block_type != Encoder.SHORT_TYPE) {
+            scfsi_calc(ch, l3_side);
+            recalc = 0;
+        }
+        for (sfb = 0; sfb < gi.sfbmax; sfb++) {
+            if (gi.scalefac[sfb] == -2) {
+                gi.scalefac[sfb] = 0;
+                /* if anything goes, then 0 is a good choice */
+            }
+        }
+        if (recalc != 0) {
+            if (gfc.mode_gr == 2) {
+                this.scale_bitcount(gi);
+            } else {
+                this.scale_bitcount_lsf(gfc, gi);
+            }
+        }
+    }
+
+    function all_scalefactors_not_negative(scalefac, n) {
+        for (var i = 0; i < n; ++i) {
+            if (scalefac[i] < 0)
+                return false;
+        }
+        return true;
+    }
+
+    /**
+     * number of bits used to encode scalefacs.
+     *
+     * 18*slen1_tab[i] + 18*slen2_tab[i]
+     */
+    var scale_short = [0, 18, 36, 54, 54, 36, 54, 72,
+        54, 72, 90, 72, 90, 108, 108, 126];
+
+    /**
+     * number of bits used to encode scalefacs.
+     *
+     * 17*slen1_tab[i] + 18*slen2_tab[i]
+     */
+    var scale_mixed = [0, 18, 36, 54, 51, 35, 53, 71,
+        52, 70, 88, 69, 87, 105, 104, 122];
+
+    /**
+     * number of bits used to encode scalefacs.
+     *
+     * 11*slen1_tab[i] + 10*slen2_tab[i]
+     */
+    var scale_long = [0, 10, 20, 30, 33, 21, 31, 41, 32, 42,
+        52, 43, 53, 63, 64, 74];
+
+    /**
+     * Also calculates the number of bits necessary to code the scalefactors.
+     */
+    this.scale_bitcount = function (cod_info) {
+        var k, sfb, max_slen1 = 0, max_slen2 = 0;
+
+        /* maximum values */
+        var tab;
+        var scalefac = cod_info.scalefac;
+
+
+        if (cod_info.block_type == Encoder.SHORT_TYPE) {
+            tab = scale_short;
+            if (cod_info.mixed_block_flag != 0)
+                tab = scale_mixed;
+        } else { /* block_type == 1,2,or 3 */
+            tab = scale_long;
+            if (0 == cod_info.preflag) {
+                for (sfb = 11; sfb < Encoder.SBPSY_l; sfb++)
+                    if (scalefac[sfb] < qupvt.pretab[sfb])
+                        break;
+
+                if (sfb == Encoder.SBPSY_l) {
+                    cod_info.preflag = 1;
+                    for (sfb = 11; sfb < Encoder.SBPSY_l; sfb++)
+                        scalefac[sfb] -= qupvt.pretab[sfb];
+                }
+            }
+        }
+
+        for (sfb = 0; sfb < cod_info.sfbdivide; sfb++)
+            if (max_slen1 < scalefac[sfb])
+                max_slen1 = scalefac[sfb];
+
+        for (; sfb < cod_info.sfbmax; sfb++)
+            if (max_slen2 < scalefac[sfb])
+                max_slen2 = scalefac[sfb];
+
+        /*
+         * from Takehiro TOMINAGA <tominaga@isoternet.org> 10/99 loop over *all*
+         * posible values of scalefac_compress to find the one which uses the
+         * smallest number of bits. ISO would stop at first valid index
+         */
+        cod_info.part2_length = QuantizePVT.LARGE_BITS;
+        for (k = 0; k < 16; k++) {
+            if (max_slen1 < slen1_n[k] && max_slen2 < slen2_n[k]
+                && cod_info.part2_length > tab[k]) {
+                cod_info.part2_length = tab[k];
+                cod_info.scalefac_compress = k;
+            }
+        }
+        return cod_info.part2_length == QuantizePVT.LARGE_BITS;
+    }
+
+    /**
+     * table of largest scalefactor values for MPEG2
+     */
+    var max_range_sfac_tab = [[15, 15, 7, 7],
+        [15, 15, 7, 0], [7, 3, 0, 0], [15, 31, 31, 0],
+        [7, 7, 7, 0], [3, 3, 0, 0]];
+
+    /**
+     * Also counts the number of bits to encode the scalefacs but for MPEG 2
+     * Lower sampling frequencies (24, 22.05 and 16 kHz.)
+     *
+     * This is reverse-engineered from section 2.4.3.2 of the MPEG2 IS,
+     * "Audio Decoding Layer III"
+     */
+    this.scale_bitcount_lsf = function (gfc, cod_info) {
+        var table_number, row_in_table, partition, nr_sfb, window;
+        var over;
+        var i, sfb;
+        var max_sfac = new_int(4);
+//var partition_table;
+        var scalefac = cod_info.scalefac;
+
+        /*
+         * Set partition table. Note that should try to use table one, but do
+         * not yet...
+         */
+        if (cod_info.preflag != 0)
+            table_number = 2;
+        else
+            table_number = 0;
+
+        for (i = 0; i < 4; i++)
+            max_sfac[i] = 0;
+
+        if (cod_info.block_type == Encoder.SHORT_TYPE) {
+            row_in_table = 1;
+            var partition_table = qupvt.nr_of_sfb_block[table_number][row_in_table];
+            for (sfb = 0, partition = 0; partition < 4; partition++) {
+                nr_sfb = partition_table[partition] / 3;
+                for (i = 0; i < nr_sfb; i++, sfb++)
+                    for (window = 0; window < 3; window++)
+                        if (scalefac[sfb * 3 + window] > max_sfac[partition])
+                            max_sfac[partition] = scalefac[sfb * 3 + window];
+            }
+        } else {
+            row_in_table = 0;
+            var partition_table = qupvt.nr_of_sfb_block[table_number][row_in_table];
+            for (sfb = 0, partition = 0; partition < 4; partition++) {
+                nr_sfb = partition_table[partition];
+                for (i = 0; i < nr_sfb; i++, sfb++)
+                    if (scalefac[sfb] > max_sfac[partition])
+                        max_sfac[partition] = scalefac[sfb];
+            }
+        }
+
+        for (over = false, partition = 0; partition < 4; partition++) {
+            if (max_sfac[partition] > max_range_sfac_tab[table_number][partition])
+                over = true;
+        }
+        if (!over) {
+            var slen1, slen2, slen3, slen4;
+
+            cod_info.sfb_partition_table = qupvt.nr_of_sfb_block[table_number][row_in_table];
+            for (partition = 0; partition < 4; partition++)
+                cod_info.slen[partition] = log2tab[max_sfac[partition]];
+
+            /* set scalefac_compress */
+            slen1 = cod_info.slen[0];
+            slen2 = cod_info.slen[1];
+            slen3 = cod_info.slen[2];
+            slen4 = cod_info.slen[3];
+
+            switch (table_number) {
+                case 0:
+                    cod_info.scalefac_compress = (((slen1 * 5) + slen2) << 4)
+                        + (slen3 << 2) + slen4;
+                    break;
+
+                case 1:
+                    cod_info.scalefac_compress = 400 + (((slen1 * 5) + slen2) << 2)
+                        + slen3;
+                    break;
+
+                case 2:
+                    cod_info.scalefac_compress = 500 + (slen1 * 3) + slen2;
+                    break;
+
+                default:
+                    System.err.printf("intensity stereo not implemented yet\n");
+                    break;
+            }
+        }
+        if (!over) {
+            cod_info.part2_length = 0;
+            for (partition = 0; partition < 4; partition++)
+                cod_info.part2_length += cod_info.slen[partition]
+                    * cod_info.sfb_partition_table[partition];
+        }
+        return over;
+    }
+
+    /*
+     * Since no bands have been over-amplified, we can set scalefac_compress and
+     * slen[] for the formatter
+     */
+    var log2tab = [0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4,
+        4, 4, 4, 4];
+
+    this.huffman_init = function (gfc) {
+        for (var i = 2; i <= 576; i += 2) {
+            var scfb_anz = 0, bv_index;
+            while (gfc.scalefac_band.l[++scfb_anz] < i)
+                ;
+
+            bv_index = subdv_table[scfb_anz][0]; // .region0_count
+            while (gfc.scalefac_band.l[bv_index + 1] > i)
+                bv_index--;
+
+            if (bv_index < 0) {
+                /*
+                 * this is an indication that everything is going to be encoded
+                 * as region0: bigvalues < region0 < region1 so lets set
+                 * region0, region1 to some value larger than bigvalues
+                 */
+                bv_index = subdv_table[scfb_anz][0]; // .region0_count
+            }
+
+            gfc.bv_scf[i - 2] = bv_index;
+
+            bv_index = subdv_table[scfb_anz][1]; // .region1_count
+            while (gfc.scalefac_band.l[bv_index + gfc.bv_scf[i - 2] + 2] > i)
+                bv_index--;
+
+            if (bv_index < 0) {
+                bv_index = subdv_table[scfb_anz][1]; // .region1_count
+            }
+
+            gfc.bv_scf[i - 1] = bv_index;
+        }
+    }
+}
+
+/*
+ *  ReplayGainAnalysis - analyzes input samples and give the recommended dB change
+ *  Copyright (C) 2001 David Robinson and Glen Sawyer
+ *  Improvements and optimizations added by Frank Klemm, and by Marcel Muller 
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ *  concept and filter values by David Robinson (David@Robinson.org)
+ *    -- blame him if you think the idea is flawed
+ *  original coding by Glen Sawyer (mp3gain@hotmail.com)
+ *    -- blame him if you think this runs too slowly, or the coding is otherwise flawed
+ *
+ *  lots of code improvements by Frank Klemm ( http://www.uni-jena.de/~pfk/mpp/ )
+ *    -- credit him for all the _good_ programming ;)
+ *
+ *
+ *  For an explanation of the concepts and the basic algorithms involved, go to:
+ *    http://www.replaygain.org/
+ */
+
+/*
+ *  Here's the deal. Call
+ *
+ *    InitGainAnalysis ( long samplefreq );
+ *
+ *  to initialize everything. Call
+ *
+ *    AnalyzeSamples ( var Float_t*  left_samples,
+ *                     var Float_t*  right_samples,
+ *                     size_t          num_samples,
+ *                     int             num_channels );
+ *
+ *  as many times as you want, with as many or as few samples as you want.
+ *  If mono, pass the sample buffer in through left_samples, leave
+ *  right_samples NULL, and make sure num_channels = 1.
+ *
+ *    GetTitleGain()
+ *
+ *  will return the recommended dB level change for all samples analyzed
+ *  SINCE THE LAST TIME you called GetTitleGain() OR InitGainAnalysis().
+ *
+ *    GetAlbumGain()
+ *
+ *  will return the recommended dB level change for all samples analyzed
+ *  since InitGainAnalysis() was called and finalized with GetTitleGain().
+ *
+ *  Pseudo-code to process an album:
+ *
+ *    Float_t       l_samples [4096];
+ *    Float_t       r_samples [4096];
+ *    size_t        num_samples;
+ *    unsigned int  num_songs;
+ *    unsigned int  i;
+ *
+ *    InitGainAnalysis ( 44100 );
+ *    for ( i = 1; i <= num_songs; i++ ) {
+ *        while ( ( num_samples = getSongSamples ( song[i], left_samples, right_samples ) ) > 0 )
+ *            AnalyzeSamples ( left_samples, right_samples, num_samples, 2 );
+ *        fprintf ("Recommended dB change for song %2d: %+6.2 dB\n", i, GetTitleGain() );
+ *    }
+ *    fprintf ("Recommended dB change for whole album: %+6.2 dB\n", GetAlbumGain() );
+ */
+
+/*
+ *  So here's the main source of potential code confusion:
+ *
+ *  The filters applied to the incoming samples are IIR filters,
+ *  meaning they rely on up to <filter order> number of previous samples
+ *  AND up to <filter order> number of previous filtered samples.
+ *
+ *  I set up the AnalyzeSamples routine to minimize memory usage and interface
+ *  complexity. The speed isn't compromised too much (I don't think), but the
+ *  internal complexity is higher than it should be for such a relatively
+ *  simple routine.
+ *
+ *  Optimization/clarity suggestions are welcome.
+ */
+
+/**
+ * Table entries per dB
+ */
+GainAnalysis.STEPS_per_dB = 100.;
+/**
+ * Table entries for 0...MAX_dB (normal max. values are 70...80 dB)
+ */
+GainAnalysis.MAX_dB = 120.;
+GainAnalysis.GAIN_NOT_ENOUGH_SAMPLES = -24601;
+GainAnalysis.GAIN_ANALYSIS_ERROR = 0;
+GainAnalysis.GAIN_ANALYSIS_OK = 1;
+GainAnalysis.INIT_GAIN_ANALYSIS_ERROR = 0;
+GainAnalysis.INIT_GAIN_ANALYSIS_OK = 1;
+
+GainAnalysis.YULE_ORDER = 10;
+GainAnalysis.MAX_ORDER = GainAnalysis.YULE_ORDER;
+
+GainAnalysis.MAX_SAMP_FREQ = 48000;
+GainAnalysis.RMS_WINDOW_TIME_NUMERATOR = 1;
+GainAnalysis.RMS_WINDOW_TIME_DENOMINATOR = 20;
+GainAnalysis.MAX_SAMPLES_PER_WINDOW = ((GainAnalysis.MAX_SAMP_FREQ * GainAnalysis.RMS_WINDOW_TIME_NUMERATOR) / GainAnalysis.RMS_WINDOW_TIME_DENOMINATOR + 1);
+
+function GainAnalysis() {
+	//fix 精简
+}
+
+
+function Presets() {
+    function VBRPresets(qual, comp, compS,
+                        y, shThreshold, shThresholdS,
+                        adj, adjShort, lower,
+                        curve, sens, inter,
+                        joint, mod, fix) {
+        this.vbr_q = qual;
+        this.quant_comp = comp;
+        this.quant_comp_s = compS;
+        this.expY = y;
+        this.st_lrm = shThreshold;
+        this.st_s = shThresholdS;
+        this.masking_adj = adj;
+        this.masking_adj_short = adjShort;
+        this.ath_lower = lower;
+        this.ath_curve = curve;
+        this.ath_sensitivity = sens;
+        this.interch = inter;
+        this.safejoint = joint;
+        this.sfb21mod = mod;
+        this.msfix = fix;
+    }
+
+    function ABRPresets(kbps, comp, compS,
+                        joint, fix, shThreshold,
+                        shThresholdS, bass, sc,
+                        mask, lower, curve,
+                        interCh, sfScale) {
+        this.quant_comp = comp;
+        this.quant_comp_s = compS;
+        this.safejoint = joint;
+        this.nsmsfix = fix;
+        this.st_lrm = shThreshold;
+        this.st_s = shThresholdS;
+        this.nsbass = bass;
+        this.scale = sc;
+        this.masking_adj = mask;
+        this.ath_lower = lower;
+        this.ath_curve = curve;
+        this.interch = interCh;
+        this.sfscale = sfScale;
+    }
+
+    var lame;
+
+    this.setModules = function (_lame) {
+        lame = _lame;
+    };
+
+    /**
+     * <PRE>
+     * Switch mappings for VBR mode VBR_RH
+     *             vbr_q  qcomp_l  qcomp_s  expY  st_lrm   st_s  mask adj_l  adj_s  ath_lower  ath_curve  ath_sens  interChR  safejoint sfb21mod  msfix
+     * </PRE>
+     */
+    var vbr_old_switch_map = [
+        new VBRPresets(0, 9, 9, 0, 5.20, 125.0, -4.2, -6.3, 4.8, 1, 0, 0, 2, 21, 0.97),
+        new VBRPresets(1, 9, 9, 0, 5.30, 125.0, -3.6, -5.6, 4.5, 1.5, 0, 0, 2, 21, 1.35),
+        new VBRPresets(2, 9, 9, 0, 5.60, 125.0, -2.2, -3.5, 2.8, 2, 0, 0, 2, 21, 1.49),
+        new VBRPresets(3, 9, 9, 1, 5.80, 130.0, -1.8, -2.8, 2.6, 3, -4, 0, 2, 20, 1.64),
+        new VBRPresets(4, 9, 9, 1, 6.00, 135.0, -0.7, -1.1, 1.1, 3.5, -8, 0, 2, 0, 1.79),
+        new VBRPresets(5, 9, 9, 1, 6.40, 140.0, 0.5, 0.4, -7.5, 4, -12, 0.0002, 0, 0, 1.95),
+        new VBRPresets(6, 9, 9, 1, 6.60, 145.0, 0.67, 0.65, -14.7, 6.5, -19, 0.0004, 0, 0, 2.30),
+        new VBRPresets(7, 9, 9, 1, 6.60, 145.0, 0.8, 0.75, -19.7, 8, -22, 0.0006, 0, 0, 2.70),
+        new VBRPresets(8, 9, 9, 1, 6.60, 145.0, 1.2, 1.15, -27.5, 10, -23, 0.0007, 0, 0, 0),
+        new VBRPresets(9, 9, 9, 1, 6.60, 145.0, 1.6, 1.6, -36, 11, -25, 0.0008, 0, 0, 0),
+        new VBRPresets(10, 9, 9, 1, 6.60, 145.0, 2.0, 2.0, -36, 12, -25, 0.0008, 0, 0, 0)
+    ];
+
+    /**
+     * <PRE>
+     *                 vbr_q  qcomp_l  qcomp_s  expY  st_lrm   st_s  mask adj_l  adj_s  ath_lower  ath_curve  ath_sens  interChR  safejoint sfb21mod  msfix
+     * </PRE>
+     */
+    var vbr_psy_switch_map = [
+        new VBRPresets(0, 9, 9, 0, 4.20, 25.0, -7.0, -4.0, 7.5, 1, 0, 0, 2, 26, 0.97),
+        new VBRPresets(1, 9, 9, 0, 4.20, 25.0, -5.6, -3.6, 4.5, 1.5, 0, 0, 2, 21, 1.35),
+        new VBRPresets(2, 9, 9, 0, 4.20, 25.0, -4.4, -1.8, 2, 2, 0, 0, 2, 18, 1.49),
+        new VBRPresets(3, 9, 9, 1, 4.20, 25.0, -3.4, -1.25, 1.1, 3, -4, 0, 2, 15, 1.64),
+        new VBRPresets(4, 9, 9, 1, 4.20, 25.0, -2.2, 0.1, 0, 3.5, -8, 0, 2, 0, 1.79),
+        new VBRPresets(5, 9, 9, 1, 4.20, 25.0, -1.0, 1.65, -7.7, 4, -12, 0.0002, 0, 0, 1.95),
+        new VBRPresets(6, 9, 9, 1, 4.20, 25.0, -0.0, 2.47, -7.7, 6.5, -19, 0.0004, 0, 0, 2),
+        new VBRPresets(7, 9, 9, 1, 4.20, 25.0, 0.5, 2.0, -14.5, 8, -22, 0.0006, 0, 0, 2),
+        new VBRPresets(8, 9, 9, 1, 4.20, 25.0, 1.0, 2.4, -22.0, 10, -23, 0.0007, 0, 0, 2),
+        new VBRPresets(9, 9, 9, 1, 4.20, 25.0, 1.5, 2.95, -30.0, 11, -25, 0.0008, 0, 0, 2),
+        new VBRPresets(10, 9, 9, 1, 4.20, 25.0, 2.0, 2.95, -36.0, 12, -30, 0.0008, 0, 0, 2)
+    ];
+
+    function apply_vbr_preset(gfp, a, enforce) {
+        var vbr_preset = gfp.VBR == VbrMode.vbr_rh ? vbr_old_switch_map
+            : vbr_psy_switch_map;
+
+        var x = gfp.VBR_q_frac;
+        var p = vbr_preset[a];
+        var q = vbr_preset[a + 1];
+        var set = p;
+
+        // NOOP(vbr_q);
+        // NOOP(quant_comp);
+        // NOOP(quant_comp_s);
+        // NOOP(expY);
+        p.st_lrm = p.st_lrm + x * (q.st_lrm - p.st_lrm);
+        // LERP(st_lrm);
+        p.st_s = p.st_s + x * (q.st_s - p.st_s);
+        // LERP(st_s);
+        p.masking_adj = p.masking_adj + x * (q.masking_adj - p.masking_adj);
+        // LERP(masking_adj);
+        p.masking_adj_short = p.masking_adj_short + x
+            * (q.masking_adj_short - p.masking_adj_short);
+        // LERP(masking_adj_short);
+        p.ath_lower = p.ath_lower + x * (q.ath_lower - p.ath_lower);
+        // LERP(ath_lower);
+        p.ath_curve = p.ath_curve + x * (q.ath_curve - p.ath_curve);
+        // LERP(ath_curve);
+        p.ath_sensitivity = p.ath_sensitivity + x
+            * (q.ath_sensitivity - p.ath_sensitivity);
+        // LERP(ath_sensitivity);
+        p.interch = p.interch + x * (q.interch - p.interch);
+        // LERP(interch);
+        // NOOP(safejoint);
+        // NOOP(sfb21mod);
+        p.msfix = p.msfix + x * (q.msfix - p.msfix);
+        // LERP(msfix);
+
+        lame_set_VBR_q(gfp, set.vbr_q);
+
+        if (enforce != 0)
+            gfp.quant_comp = set.quant_comp;
+        else if (!(Math.abs(gfp.quant_comp - -1) > 0))
+            gfp.quant_comp = set.quant_comp;
+        // SET_OPTION(quant_comp, set.quant_comp, -1);
+        if (enforce != 0)
+            gfp.quant_comp_short = set.quant_comp_s;
+        else if (!(Math.abs(gfp.quant_comp_short - -1) > 0))
+            gfp.quant_comp_short = set.quant_comp_s;
+        // SET_OPTION(quant_comp_short, set.quant_comp_s, -1);
+        if (set.expY != 0) {
+            gfp.experimentalY = set.expY != 0;
+        }
+        if (enforce != 0)
+            gfp.internal_flags.nsPsy.attackthre = set.st_lrm;
+        else if (!(Math.abs(gfp.internal_flags.nsPsy.attackthre - -1) > 0))
+            gfp.internal_flags.nsPsy.attackthre = set.st_lrm;
+        // SET_OPTION(short_threshold_lrm, set.st_lrm, -1);
+        if (enforce != 0)
+            gfp.internal_flags.nsPsy.attackthre_s = set.st_s;
+        else if (!(Math.abs(gfp.internal_flags.nsPsy.attackthre_s - -1) > 0))
+            gfp.internal_flags.nsPsy.attackthre_s = set.st_s;
+        // SET_OPTION(short_threshold_s, set.st_s, -1);
+        if (enforce != 0)
+            gfp.maskingadjust = set.masking_adj;
+        else if (!(Math.abs(gfp.maskingadjust - 0) > 0))
+            gfp.maskingadjust = set.masking_adj;
+        // SET_OPTION(maskingadjust, set.masking_adj, 0);
+        if (enforce != 0)
+            gfp.maskingadjust_short = set.masking_adj_short;
+        else if (!(Math.abs(gfp.maskingadjust_short - 0) > 0))
+            gfp.maskingadjust_short = set.masking_adj_short;
+        // SET_OPTION(maskingadjust_short, set.masking_adj_short, 0);
+        if (enforce != 0)
+            gfp.ATHlower = -set.ath_lower / 10.0;
+        else if (!(Math.abs((-gfp.ATHlower * 10.0) - 0) > 0))
+            gfp.ATHlower = -set.ath_lower / 10.0;
+        // SET_OPTION(ATHlower, set.ath_lower, 0);
+        if (enforce != 0)
+            gfp.ATHcurve = set.ath_curve;
+        else if (!(Math.abs(gfp.ATHcurve - -1) > 0))
+            gfp.ATHcurve = set.ath_curve;
+        // SET_OPTION(ATHcurve, set.ath_curve, -1);
+        if (enforce != 0)
+            gfp.athaa_sensitivity = set.ath_sensitivity;
+        else if (!(Math.abs(gfp.athaa_sensitivity - -1) > 0))
+            gfp.athaa_sensitivity = set.ath_sensitivity;
+        // SET_OPTION(athaa_sensitivity, set.ath_sensitivity, 0);
+        if (set.interch > 0) {
+            if (enforce != 0)
+                gfp.interChRatio = set.interch;
+            else if (!(Math.abs(gfp.interChRatio - -1) > 0))
+                gfp.interChRatio = set.interch;
+            // SET_OPTION(interChRatio, set.interch, -1);
+        }
+
+        /* parameters for which there is no proper set/get interface */
+        if (set.safejoint > 0) {
+            gfp.exp_nspsytune = gfp.exp_nspsytune | set.safejoint;
+        }
+        if (set.sfb21mod > 0) {
+            gfp.exp_nspsytune = gfp.exp_nspsytune | (set.sfb21mod << 20);
+        }
+        if (enforce != 0)
+            gfp.msfix = set.msfix;
+        else if (!(Math.abs(gfp.msfix - -1) > 0))
+            gfp.msfix = set.msfix;
+        // SET_OPTION(msfix, set.msfix, -1);
+
+        if (enforce == 0) {
+            gfp.VBR_q = a;
+            gfp.VBR_q_frac = x;
+        }
+    }
+
+    /**
+     * <PRE>
+     *  Switch mappings for ABR mode
+     *
+     *              kbps  quant q_s safejoint nsmsfix st_lrm  st_s  ns-bass scale   msk ath_lwr ath_curve  interch , sfscale
+     * </PRE>
+     */
+    var abr_switch_map = [
+        new ABRPresets(8, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, -30.0, 11, 0.0012, 1), /*   8, impossible to use in stereo */
+        new ABRPresets(16, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, -25.0, 11, 0.0010, 1), /*  16 */
+        new ABRPresets(24, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, -20.0, 11, 0.0010, 1), /*  24 */
+        new ABRPresets(32, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, -15.0, 11, 0.0010, 1), /*  32 */
+        new ABRPresets(40, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, -10.0, 11, 0.0009, 1), /*  40 */
+        new ABRPresets(48, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, -10.0, 11, 0.0009, 1), /*  48 */
+        new ABRPresets(56, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, -6.0, 11, 0.0008, 1), /*  56 */
+        new ABRPresets(64, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, -2.0, 11, 0.0008, 1), /*  64 */
+        new ABRPresets(80, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, .0, 8, 0.0007, 1), /*  80 */
+        new ABRPresets(96, 9, 9, 0, 2.50, 6.60, 145, 0, 0.95, 0, 1.0, 5.5, 0.0006, 1), /*  96 */
+        new ABRPresets(112, 9, 9, 0, 2.25, 6.60, 145, 0, 0.95, 0, 2.0, 4.5, 0.0005, 1), /* 112 */
+        new ABRPresets(128, 9, 9, 0, 1.95, 6.40, 140, 0, 0.95, 0, 3.0, 4, 0.0002, 1), /* 128 */
+        new ABRPresets(160, 9, 9, 1, 1.79, 6.00, 135, 0, 0.95, -2, 5.0, 3.5, 0, 1), /* 160 */
+        new ABRPresets(192, 9, 9, 1, 1.49, 5.60, 125, 0, 0.97, -4, 7.0, 3, 0, 0), /* 192 */
+        new ABRPresets(224, 9, 9, 1, 1.25, 5.20, 125, 0, 0.98, -6, 9.0, 2, 0, 0), /* 224 */
+        new ABRPresets(256, 9, 9, 1, 0.97, 5.20, 125, 0, 1.00, -8, 10.0, 1, 0, 0), /* 256 */
+        new ABRPresets(320, 9, 9, 1, 0.90, 5.20, 125, 0, 1.00, -10, 12.0, 0, 0, 0)  /* 320 */
+    ];
+
+    function apply_abr_preset(gfp, preset, enforce) {
+        /* Variables for the ABR stuff */
+        var actual_bitrate = preset;
+
+        var r = lame.nearestBitrateFullIndex(preset);
+
+        gfp.VBR = VbrMode.vbr_abr;
+        gfp.VBR_mean_bitrate_kbps = actual_bitrate;
+        gfp.VBR_mean_bitrate_kbps = Math.min(gfp.VBR_mean_bitrate_kbps, 320);
+        gfp.VBR_mean_bitrate_kbps = Math.max(gfp.VBR_mean_bitrate_kbps, 8);
+        gfp.brate = gfp.VBR_mean_bitrate_kbps;
+        if (gfp.VBR_mean_bitrate_kbps > 320) {
+            gfp.disable_reservoir = true;
+        }
+
+        /* parameters for which there is no proper set/get interface */
+        if (abr_switch_map[r].safejoint > 0)
+            gfp.exp_nspsytune = gfp.exp_nspsytune | 2;
+        /* safejoint */
+
+        if (abr_switch_map[r].sfscale > 0) {
+            gfp.internal_flags.noise_shaping = 2;
+        }
+        /* ns-bass tweaks */
+        if (Math.abs(abr_switch_map[r].nsbass) > 0) {
+            var k = (int)(abr_switch_map[r].nsbass * 4);
+            if (k < 0)
+                k += 64;
+            gfp.exp_nspsytune = gfp.exp_nspsytune | (k << 2);
+        }
+
+        if (enforce != 0)
+            gfp.quant_comp = abr_switch_map[r].quant_comp;
+        else if (!(Math.abs(gfp.quant_comp - -1) > 0))
+            gfp.quant_comp = abr_switch_map[r].quant_comp;
+        // SET_OPTION(quant_comp, abr_switch_map[r].quant_comp, -1);
+        if (enforce != 0)
+            gfp.quant_comp_short = abr_switch_map[r].quant_comp_s;
+        else if (!(Math.abs(gfp.quant_comp_short - -1) > 0))
+            gfp.quant_comp_short = abr_switch_map[r].quant_comp_s;
+        // SET_OPTION(quant_comp_short, abr_switch_map[r].quant_comp_s, -1);
+
+        if (enforce != 0)
+            gfp.msfix = abr_switch_map[r].nsmsfix;
+        else if (!(Math.abs(gfp.msfix - -1) > 0))
+            gfp.msfix = abr_switch_map[r].nsmsfix;
+        // SET_OPTION(msfix, abr_switch_map[r].nsmsfix, -1);
+
+        if (enforce != 0)
+            gfp.internal_flags.nsPsy.attackthre = abr_switch_map[r].st_lrm;
+        else if (!(Math.abs(gfp.internal_flags.nsPsy.attackthre - -1) > 0))
+            gfp.internal_flags.nsPsy.attackthre = abr_switch_map[r].st_lrm;
+        // SET_OPTION(short_threshold_lrm, abr_switch_map[r].st_lrm, -1);
+        if (enforce != 0)
+            gfp.internal_flags.nsPsy.attackthre_s = abr_switch_map[r].st_s;
+        else if (!(Math.abs(gfp.internal_flags.nsPsy.attackthre_s - -1) > 0))
+            gfp.internal_flags.nsPsy.attackthre_s = abr_switch_map[r].st_s;
+        // SET_OPTION(short_threshold_s, abr_switch_map[r].st_s, -1);
+
+        /*
+         * ABR seems to have big problems with clipping, especially at low
+         * bitrates
+         */
+        /*
+         * so we compensate for that here by using a scale value depending on
+         * bitrate
+         */
+        if (enforce != 0)
+            gfp.scale = abr_switch_map[r].scale;
+        else if (!(Math.abs(gfp.scale - -1) > 0))
+            gfp.scale = abr_switch_map[r].scale;
+        // SET_OPTION(scale, abr_switch_map[r].scale, -1);
+
+        if (enforce != 0)
+            gfp.maskingadjust = abr_switch_map[r].masking_adj;
+        else if (!(Math.abs(gfp.maskingadjust - 0) > 0))
+            gfp.maskingadjust = abr_switch_map[r].masking_adj;
+        // SET_OPTION(maskingadjust, abr_switch_map[r].masking_adj, 0);
+        if (abr_switch_map[r].masking_adj > 0) {
+            if (enforce != 0)
+                gfp.maskingadjust_short = (abr_switch_map[r].masking_adj * .9);
+            else if (!(Math.abs(gfp.maskingadjust_short - 0) > 0))
+                gfp.maskingadjust_short = (abr_switch_map[r].masking_adj * .9);
+            // SET_OPTION(maskingadjust_short, abr_switch_map[r].masking_adj *
+            // .9, 0);
+        } else {
+            if (enforce != 0)
+                gfp.maskingadjust_short = (abr_switch_map[r].masking_adj * 1.1);
+            else if (!(Math.abs(gfp.maskingadjust_short - 0) > 0))
+                gfp.maskingadjust_short = (abr_switch_map[r].masking_adj * 1.1);
+            // SET_OPTION(maskingadjust_short, abr_switch_map[r].masking_adj *
+            // 1.1, 0);
+        }
+
+        if (enforce != 0)
+            gfp.ATHlower = -abr_switch_map[r].ath_lower / 10.;
+        else if (!(Math.abs((-gfp.ATHlower * 10.) - 0) > 0))
+            gfp.ATHlower = -abr_switch_map[r].ath_lower / 10.;
+        // SET_OPTION(ATHlower, abr_switch_map[r].ath_lower, 0);
+        if (enforce != 0)
+            gfp.ATHcurve = abr_switch_map[r].ath_curve;
+        else if (!(Math.abs(gfp.ATHcurve - -1) > 0))
+            gfp.ATHcurve = abr_switch_map[r].ath_curve;
+        // SET_OPTION(ATHcurve, abr_switch_map[r].ath_curve, -1);
+
+        if (enforce != 0)
+            gfp.interChRatio = abr_switch_map[r].interch;
+        else if (!(Math.abs(gfp.interChRatio - -1) > 0))
+            gfp.interChRatio = abr_switch_map[r].interch;
+        // SET_OPTION(interChRatio, abr_switch_map[r].interch, -1);
+
+        return preset;
+    }
+
+    this.apply_preset = function(gfp, preset, enforce) {
+        /* translate legacy presets */
+        switch (preset) {
+            case Lame.R3MIX:
+            {
+                preset = Lame.V3;
+                gfp.VBR = VbrMode.vbr_mtrh;
+                break;
+            }
+            case Lame.MEDIUM:
+            {
+                preset = Lame.V4;
+                gfp.VBR = VbrMode.vbr_rh;
+                break;
+            }
+            case Lame.MEDIUM_FAST:
+            {
+                preset = Lame.V4;
+                gfp.VBR = VbrMode.vbr_mtrh;
+                break;
+            }
+            case Lame.STANDARD:
+            {
+                preset = Lame.V2;
+                gfp.VBR = VbrMode.vbr_rh;
+                break;
+            }
+            case Lame.STANDARD_FAST:
+            {
+                preset = Lame.V2;
+                gfp.VBR = VbrMode.vbr_mtrh;
+                break;
+            }
+            case Lame.EXTREME:
+            {
+                preset = Lame.V0;
+                gfp.VBR = VbrMode.vbr_rh;
+                break;
+            }
+            case Lame.EXTREME_FAST:
+            {
+                preset = Lame.V0;
+                gfp.VBR = VbrMode.vbr_mtrh;
+                break;
+            }
+            case Lame.INSANE:
+            {
+                preset = 320;
+                gfp.preset = preset;
+                apply_abr_preset(gfp, preset, enforce);
+                gfp.VBR = VbrMode.vbr_off;
+                return preset;
+            }
+        }
+
+        gfp.preset = preset;
+        {
+            switch (preset) {
+                case Lame.V9:
+                    apply_vbr_preset(gfp, 9, enforce);
+                    return preset;
+                case Lame.V8:
+                    apply_vbr_preset(gfp, 8, enforce);
+                    return preset;
+                case Lame.V7:
+                    apply_vbr_preset(gfp, 7, enforce);
+                    return preset;
+                case Lame.V6:
+                    apply_vbr_preset(gfp, 6, enforce);
+                    return preset;
+                case Lame.V5:
+                    apply_vbr_preset(gfp, 5, enforce);
+                    return preset;
+                case Lame.V4:
+                    apply_vbr_preset(gfp, 4, enforce);
+                    return preset;
+                case Lame.V3:
+                    apply_vbr_preset(gfp, 3, enforce);
+                    return preset;
+                case Lame.V2:
+                    apply_vbr_preset(gfp, 2, enforce);
+                    return preset;
+                case Lame.V1:
+                    apply_vbr_preset(gfp, 1, enforce);
+                    return preset;
+                case Lame.V0:
+                    apply_vbr_preset(gfp, 0, enforce);
+                    return preset;
+                default:
+                    break;
+            }
+        }
+        if (8 <= preset && preset <= 320) {
+            return apply_abr_preset(gfp, preset, enforce);
+        }
+
+        /* no corresponding preset found */
+        gfp.preset = 0;
+        return preset;
+    }
+
+    // Rest from getset.c:
+
+    /**
+     * VBR quality level.<BR>
+     * 0 = highest<BR>
+     * 9 = lowest
+     */
+    function lame_set_VBR_q(gfp, VBR_q) {
+        var ret = 0;
+
+        if (0 > VBR_q) {
+            /* Unknown VBR quality level! */
+            ret = -1;
+            VBR_q = 0;
+        }
+        if (9 < VBR_q) {
+            ret = -1;
+            VBR_q = 9;
+        }
+
+        gfp.VBR_q = VBR_q;
+        gfp.VBR_q_frac = 0;
+        return ret;
+    }
+
+}
+
+/*
+ *      bit reservoir source file
+ *
+ *      Copyright (c) 1999-2000 Mark Taylor
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/* $Id: Reservoir.java,v 1.9 2011/05/24 20:48:06 kenchis Exp $ */
+
+//package mp3;
+
+/**
+ * ResvFrameBegin:<BR>
+ * Called (repeatedly) at the beginning of a frame. Updates the maximum size of
+ * the reservoir, and checks to make sure main_data_begin was set properly by
+ * the formatter<BR>
+ * Background information:
+ * 
+ * This is the original text from the ISO standard. Because of sooo many bugs
+ * and irritations correcting comments are added in brackets []. A '^W' means
+ * you should remove the last word.
+ * 
+ * <PRE>
+ *  1. The following rule can be used to calculate the maximum
+ *     number of bits used for one granule [^W frame]:<BR>
+ *     At the highest possible bitrate of Layer III (320 kbps
+ *     per stereo signal [^W^W^W], 48 kHz) the frames must be of
+ *     [^W^W^W are designed to have] constant length, i.e.
+ *     one buffer [^W^W the frame] length is:<BR>
+ * 
+ *         320 kbps * 1152/48 kHz = 7680 bit = 960 byte
+ * 
+ *     This value is used as the maximum buffer per channel [^W^W] at
+ *     lower bitrates [than 320 kbps]. At 64 kbps mono or 128 kbps
+ *     stereo the main granule length is 64 kbps * 576/48 kHz = 768 bit
+ *     [per granule and channel] at 48 kHz sampling frequency.
+ *     This means that there is a maximum deviation (short time buffer
+ *     [= reservoir]) of 7680 - 2*2*768 = 4608 bits is allowed at 64 kbps.
+ *     The actual deviation is equal to the number of bytes [with the
+ *     meaning of octets] denoted by the main_data_end offset pointer.
+ *     The actual maximum deviation is (2^9-1)*8 bit = 4088 bits
+ *     [for MPEG-1 and (2^8-1)*8 bit for MPEG-2, both are hard limits].
+ *     ... The xchange of buffer bits between the left and right channel
+ *     is allowed without restrictions [exception: dual channel].
+ *     Because of the [constructed] constraint on the buffer size
+ *     main_data_end is always set to 0 in the case of bit_rate_index==14,
+ *     i.e. data rate 320 kbps per stereo signal [^W^W^W]. In this case
+ *     all data are allocated between adjacent header [^W sync] words
+ *     [, i.e. there is no buffering at all].
+ * </PRE>
+ */
+
+
+function Reservoir() {
+	var bs;
+
+	this.setModules  = function(_bs) {
+		bs = _bs;
+	}
+
+	this.ResvFrameBegin = function(gfp, mean_bits) {
+		var gfc = gfp.internal_flags;
+		var maxmp3buf;
+		var l3_side = gfc.l3_side;
+
+		var frameLength = bs.getframebits(gfp);
+		mean_bits.bits = (frameLength - gfc.sideinfo_len * 8) / gfc.mode_gr;
+
+		/**
+		 * <PRE>
+		 *  Meaning of the variables:
+		 *      resvLimit: (0, 8, ..., 8*255 (MPEG-2), 8*511 (MPEG-1))
+		 *          Number of bits can be stored in previous frame(s) due to
+		 *          counter size constaints
+		 *      maxmp3buf: ( ??? ... 8*1951 (MPEG-1 and 2), 8*2047 (MPEG-2.5))
+		 *          Number of bits allowed to encode one frame (you can take 8*511 bit
+		 *          from the bit reservoir and at most 8*1440 bit from the current
+		 *          frame (320 kbps, 32 kHz), so 8*1951 bit is the largest possible
+		 *          value for MPEG-1 and -2)
+		 * 
+		 *          maximum allowed granule/channel size times 4 = 8*2047 bits.,
+		 *          so this is the absolute maximum supported by the format.
+		 * 
+		 * 
+		 *      fullFrameBits:  maximum number of bits available for encoding
+		 *                      the current frame.
+		 * 
+		 *      mean_bits:      target number of bits per granule.
+		 * 
+		 *      frameLength:
+		 * 
+		 *      gfc.ResvMax:   maximum allowed reservoir
+		 * 
+		 *      gfc.ResvSize:  current reservoir size
+		 * 
+		 *      l3_side.resvDrain_pre:
+		 *         ancillary data to be added to previous frame:
+		 *         (only usefull in VBR modes if it is possible to have
+		 *         maxmp3buf < fullFrameBits)).  Currently disabled,
+		 *         see #define NEW_DRAIN
+		 *         2010-02-13: RH now enabled, it seems to be needed for CBR too,
+		 *                     as there exists one example, where the FhG decoder
+		 *                     can't decode a -b320 CBR file anymore.
+		 * 
+		 *      l3_side.resvDrain_post:
+		 *         ancillary data to be added to this frame:
+		 * 
+		 * </PRE>
+		 */
+
+		/* main_data_begin has 9 bits in MPEG-1, 8 bits MPEG-2 */
+		var resvLimit = (8 * 256) * gfc.mode_gr - 8;
+
+		/*
+		 * maximum allowed frame size. dont use more than this number of bits,
+		 * even if the frame has the space for them:
+		 */
+		if (gfp.brate > 320) {
+			/* in freeformat the buffer is constant */
+			maxmp3buf = 8 * ((int) ((gfp.brate * 1000)
+					/ (gfp.out_samplerate / 1152) / 8 + .5));
+		} else {
+			/*
+			 * all mp3 decoders should have enough buffer to handle this value:
+			 * size of a 320kbps 32kHz frame
+			 */
+			maxmp3buf = 8 * 1440;
+
+			/*
+			 * Bouvigne suggests this more lax interpretation of the ISO doc
+			 * instead of using 8*960.
+			 */
+
+			if (gfp.strict_ISO) {
+				maxmp3buf = 8 * ((int) (320000 / (gfp.out_samplerate / 1152) / 8 + .5));
+			}
+		}
+
+		gfc.ResvMax = maxmp3buf - frameLength;
+		if (gfc.ResvMax > resvLimit)
+			gfc.ResvMax = resvLimit;
+		if (gfc.ResvMax < 0 || gfp.disable_reservoir)
+			gfc.ResvMax = 0;
+
+		var fullFrameBits = mean_bits.bits * gfc.mode_gr
+				+ Math.min(gfc.ResvSize, gfc.ResvMax);
+
+		if (fullFrameBits > maxmp3buf)
+			fullFrameBits = maxmp3buf;
+
+
+		l3_side.resvDrain_pre = 0;
+
+		// frame analyzer code
+		if (gfc.pinfo != null) {
+			/*
+			 * expected bits per channel per granule [is this also right for
+			 * mono/stereo, MPEG-1/2 ?]
+			 */
+			gfc.pinfo.mean_bits = mean_bits.bits / 2;
+			gfc.pinfo.resvsize = gfc.ResvSize;
+		}
+
+		return fullFrameBits;
+	}
+
+	/**
+	 * returns targ_bits: target number of bits to use for 1 granule<BR>
+	 * extra_bits: amount extra available from reservoir<BR>
+	 * Mark Taylor 4/99
+	 */
+	this.ResvMaxBits = function(gfp, mean_bits, targ_bits, cbr) {
+		var gfc = gfp.internal_flags;
+		var add_bits;
+        var ResvSize = gfc.ResvSize, ResvMax = gfc.ResvMax;
+
+		/* compensate the saved bits used in the 1st granule */
+		if (cbr != 0)
+			ResvSize += mean_bits;
+
+		if ((gfc.substep_shaping & 1) != 0)
+			ResvMax *= 0.9;
+
+		targ_bits.bits = mean_bits;
+
+		/* extra bits if the reservoir is almost full */
+		if (ResvSize * 10 > ResvMax * 9) {
+			add_bits = ResvSize - (ResvMax * 9) / 10;
+			targ_bits.bits += add_bits;
+			gfc.substep_shaping |= 0x80;
+		} else {
+			add_bits = 0;
+			gfc.substep_shaping &= 0x7f;
+			/*
+			 * build up reservoir. this builds the reservoir a little slower
+			 * than FhG. It could simple be mean_bits/15, but this was rigged to
+			 * always produce 100 (the old value) at 128kbs
+			 */
+			if (!gfp.disable_reservoir && 0 == (gfc.substep_shaping & 1))
+				targ_bits.bits -= .1 * mean_bits;
+		}
+
+		/* amount from the reservoir we are allowed to use. ISO says 6/10 */
+		var extra_bits = (ResvSize < (gfc.ResvMax * 6) / 10 ? ResvSize
+				: (gfc.ResvMax * 6) / 10);
+		extra_bits -= add_bits;
+
+		if (extra_bits < 0)
+			extra_bits = 0;
+		return extra_bits;
+	}
+
+	/**
+	 * Called after a granule's bit allocation. Readjusts the size of the
+	 * reservoir to reflect the granule's usage.
+	 */
+	this.ResvAdjust = function(gfc, gi) {
+		gfc.ResvSize -= gi.part2_3_length + gi.part2_length;
+	}
+
+	/**
+	 * Called after all granules in a frame have been allocated. Makes sure that
+	 * the reservoir size is within limits, possibly by adding stuffing bits.
+	 */
+	this.ResvFrameEnd = function(gfc, mean_bits) {
+		var over_bits;
+		var l3_side = gfc.l3_side;
+
+		gfc.ResvSize += mean_bits * gfc.mode_gr;
+		var stuffingBits = 0;
+		l3_side.resvDrain_post = 0;
+		l3_side.resvDrain_pre = 0;
+
+		/* we must be byte aligned */
+		if ((over_bits = gfc.ResvSize % 8) != 0)
+			stuffingBits += over_bits;
+
+		over_bits = (gfc.ResvSize - stuffingBits) - gfc.ResvMax;
+		if (over_bits > 0) {
+			stuffingBits += over_bits;
+		}
+
+		/*
+		 * NOTE: enabling the NEW_DRAIN code fixes some problems with FhG
+		 * decoder shipped with MS Windows operating systems. Using this, it is
+		 * even possible to use Gabriel's lax buffer consideration again, which
+		 * assumes, any decoder should have a buffer large enough for a 320 kbps
+		 * frame at 32 kHz sample rate.
+		 * 
+		 * old drain code: lame -b320 BlackBird.wav --. does not play with
+		 * GraphEdit.exe using FhG decoder V1.5 Build 50
+		 * 
+		 * new drain code: lame -b320 BlackBird.wav --. plays fine with
+		 * GraphEdit.exe using FhG decoder V1.5 Build 50
+		 * 
+		 * Robert Hegemann, 2010-02-13.
+		 */
+		/*
+		 * drain as many bits as possible into previous frame ancillary data In
+		 * particular, in VBR mode ResvMax may have changed, and we have to make
+		 * sure main_data_begin does not create a reservoir bigger than ResvMax
+		 * mt 4/00
+		 */
+		{
+			var mdb_bytes = Math.min(l3_side.main_data_begin * 8, stuffingBits) / 8;
+			l3_side.resvDrain_pre += 8 * mdb_bytes;
+			stuffingBits -= 8 * mdb_bytes;
+			gfc.ResvSize -= 8 * mdb_bytes;
+			l3_side.main_data_begin -= mdb_bytes;
+		}
+		/* drain the rest into this frames ancillary data */
+		l3_side.resvDrain_post += stuffingBits;
+		gfc.ResvSize -= stuffingBits;
+	}
+}
+
+
+/**
+ * A Vbr header may be present in the ancillary data field of the first frame of
+ * an mp3 bitstream<BR>
+ * The Vbr header (optionally) contains
+ * <UL>
+ * <LI>frames total number of audio frames in the bitstream
+ * <LI>bytes total number of bytes in the bitstream
+ * <LI>toc table of contents
+ * </UL>
+ *
+ * toc (table of contents) gives seek points for random access.<BR>
+ * The ith entry determines the seek point for i-percent duration.<BR>
+ * seek point in bytes = (toc[i]/256.0) * total_bitstream_bytes<BR>
+ * e.g. half duration seek point = (toc[50]/256.0) * total_bitstream_bytes
+ */
+VBRTag.NUMTOCENTRIES = 100;
+VBRTag.MAXFRAMESIZE = 2880;
+
+function VBRTag() {
+
+    var lame;
+    var bs;
+    var v;
+
+    this.setModules = function (_lame, _bs, _v) {
+        lame = _lame;
+        bs = _bs;
+        v = _v;
+    };
+	
+	//fix 精简
+	
+    /**
+     * Lookup table for fast CRC-16 computation. Uses the polynomial
+     * x^16+x^15+x^2+1
+     */
+    var crc16Lookup = [0x0000, 0xC0C1, 0xC181, 0x0140,
+        0xC301, 0x03C0, 0x0280, 0xC241, 0xC601, 0x06C0, 0x0780, 0xC741,
+        0x0500, 0xC5C1, 0xC481, 0x0440, 0xCC01, 0x0CC0, 0x0D80, 0xCD41,
+        0x0F00, 0xCFC1, 0xCE81, 0x0E40, 0x0A00, 0xCAC1, 0xCB81, 0x0B40,
+        0xC901, 0x09C0, 0x0880, 0xC841, 0xD801, 0x18C0, 0x1980, 0xD941,
+        0x1B00, 0xDBC1, 0xDA81, 0x1A40, 0x1E00, 0xDEC1, 0xDF81, 0x1F40,
+        0xDD01, 0x1DC0, 0x1C80, 0xDC41, 0x1400, 0xD4C1, 0xD581, 0x1540,
+        0xD701, 0x17C0, 0x1680, 0xD641, 0xD201, 0x12C0, 0x1380, 0xD341,
+        0x1100, 0xD1C1, 0xD081, 0x1040, 0xF001, 0x30C0, 0x3180, 0xF141,
+        0x3300, 0xF3C1, 0xF281, 0x3240, 0x3600, 0xF6C1, 0xF781, 0x3740,
+        0xF501, 0x35C0, 0x3480, 0xF441, 0x3C00, 0xFCC1, 0xFD81, 0x3D40,
+        0xFF01, 0x3FC0, 0x3E80, 0xFE41, 0xFA01, 0x3AC0, 0x3B80, 0xFB41,
+        0x3900, 0xF9C1, 0xF881, 0x3840, 0x2800, 0xE8C1, 0xE981, 0x2940,
+        0xEB01, 0x2BC0, 0x2A80, 0xEA41, 0xEE01, 0x2EC0, 0x2F80, 0xEF41,
+        0x2D00, 0xEDC1, 0xEC81, 0x2C40, 0xE401, 0x24C0, 0x2580, 0xE541,
+        0x2700, 0xE7C1, 0xE681, 0x2640, 0x2200, 0xE2C1, 0xE381, 0x2340,
+        0xE101, 0x21C0, 0x2080, 0xE041, 0xA001, 0x60C0, 0x6180, 0xA141,
+        0x6300, 0xA3C1, 0xA281, 0x6240, 0x6600, 0xA6C1, 0xA781, 0x6740,
+        0xA501, 0x65C0, 0x6480, 0xA441, 0x6C00, 0xACC1, 0xAD81, 0x6D40,
+        0xAF01, 0x6FC0, 0x6E80, 0xAE41, 0xAA01, 0x6AC0, 0x6B80, 0xAB41,
+        0x6900, 0xA9C1, 0xA881, 0x6840, 0x7800, 0xB8C1, 0xB981, 0x7940,
+        0xBB01, 0x7BC0, 0x7A80, 0xBA41, 0xBE01, 0x7EC0, 0x7F80, 0xBF41,
+        0x7D00, 0xBDC1, 0xBC81, 0x7C40, 0xB401, 0x74C0, 0x7580, 0xB541,
+        0x7700, 0xB7C1, 0xB681, 0x7640, 0x7200, 0xB2C1, 0xB381, 0x7340,
+        0xB101, 0x71C0, 0x7080, 0xB041, 0x5000, 0x90C1, 0x9181, 0x5140,
+        0x9301, 0x53C0, 0x5280, 0x9241, 0x9601, 0x56C0, 0x5780, 0x9741,
+        0x5500, 0x95C1, 0x9481, 0x5440, 0x9C01, 0x5CC0, 0x5D80, 0x9D41,
+        0x5F00, 0x9FC1, 0x9E81, 0x5E40, 0x5A00, 0x9AC1, 0x9B81, 0x5B40,
+        0x9901, 0x59C0, 0x5880, 0x9841, 0x8801, 0x48C0, 0x4980, 0x8941,
+        0x4B00, 0x8BC1, 0x8A81, 0x4A40, 0x4E00, 0x8EC1, 0x8F81, 0x4F40,
+        0x8D01, 0x4DC0, 0x4C80, 0x8C41, 0x4400, 0x84C1, 0x8581, 0x4540,
+        0x8701, 0x47C0, 0x4680, 0x8641, 0x8201, 0x42C0, 0x4380, 0x8341,
+        0x4100, 0x81C1, 0x8081, 0x4040];
+		
+	//fix 精简
+	
+    /**
+     * Fast CRC-16 computation (uses table crc16Lookup).
+     *
+     * @param value
+     * @param crc
+     * @return
+     */
+    function crcUpdateLookup(value, crc) {
+        var tmp = crc ^ value;
+        crc = (crc >> 8) ^ crc16Lookup[tmp & 0xff];
+        return crc;
+    }
+
+    this.updateMusicCRC = function (crc, buffer, bufferPos, size) {
+        for (var i = 0; i < size; ++i)
+            crc[0] = crcUpdateLookup(buffer[bufferPos + i], crc[0]);
+    }
+
+	//fix 精简
+}
+
+
+
+BitStream.EQ = function (a, b) {
+    return (Math.abs(a) > Math.abs(b)) ? (Math.abs((a) - (b)) <= (Math
+        .abs(a) * 1e-6))
+        : (Math.abs((a) - (b)) <= (Math.abs(b) * 1e-6));
+};
+
+BitStream.NEQ = function (a, b) {
+    return !BitStream.EQ(a, b);
+};
+
+function BitStream() {
+    var self = this;
+    var CRC16_POLYNOMIAL = 0x8005;
+
+    /*
+     * we work with ints, so when doing bit manipulation, we limit ourselves to
+     * MAX_LENGTH-2 just to be on the safe side
+     */
+    var MAX_LENGTH = 32;
+
+    //GainAnalysis ga;
+    //MPGLib mpg;
+    //Version ver;
+    //VBRTag vbr;
+    var ga = null;
+    var mpg = null;
+    var ver = null;
+    var vbr = null;
+
+    //public final void setModules(GainAnalysis ga, MPGLib mpg, Version ver,
+    //	VBRTag vbr) {
+
+    this.setModules = function (_ga, _mpg, _ver, _vbr) {
+        ga = _ga;
+        mpg = _mpg;
+        ver = _ver;
+        vbr = _vbr;
+    };
+
+    /**
+     * Bit stream buffer.
+     */
+    //private byte[] buf;
+    var buf = null;
+    /**
+     * Bit counter of bit stream.
+     */
+    var totbit = 0;
+    /**
+     * Pointer to top byte in buffer.
+     */
+    var bufByteIdx = 0;
+    /**
+     * Pointer to top bit of top byte in buffer.
+     */
+    var bufBitIdx = 0;
+
+    /**
+     * compute bitsperframe and mean_bits for a layer III frame
+     */
+    this.getframebits = function (gfp) {
+        var gfc = gfp.internal_flags;
+        var bit_rate;
+
+        /* get bitrate in kbps [?] */
+        if (gfc.bitrate_index != 0)
+            bit_rate = Tables.bitrate_table[gfp.version][gfc.bitrate_index];
+        else
+            bit_rate = gfp.brate;
+
+        /* main encoding routine toggles padding on and off */
+        /* one Layer3 Slot consists of 8 bits */
+        var bytes = 0 | (gfp.version + 1) * 72000 * bit_rate / gfp.out_samplerate + gfc.padding;
+        return 8 * bytes;
+    };
+
+    function putheader_bits(gfc) {
+        System.arraycopy(gfc.header[gfc.w_ptr].buf, 0, buf, bufByteIdx, gfc.sideinfo_len);
+        bufByteIdx += gfc.sideinfo_len;
+        totbit += gfc.sideinfo_len * 8;
+        gfc.w_ptr = (gfc.w_ptr + 1) & (LameInternalFlags.MAX_HEADER_BUF - 1);
+    }
+
+    /**
+     * write j bits into the bit stream
+     */
+    function putbits2(gfc, val, j) {
+
+
+        while (j > 0) {
+            var k;
+            if (bufBitIdx == 0) {
+                bufBitIdx = 8;
+                bufByteIdx++;
+                if (gfc.header[gfc.w_ptr].write_timing == totbit) {
+                    putheader_bits(gfc);
+                }
+                buf[bufByteIdx] = 0;
+            }
+
+            k = Math.min(j, bufBitIdx);
+            j -= k;
+
+            bufBitIdx -= k;
+
+            /* 32 too large on 32 bit machines */
+
+            buf[bufByteIdx] |= ((val >> j) << bufBitIdx);
+            totbit += k;
+        }
+    }
+
+    /**
+     * write j bits into the bit stream, ignoring frame headers
+     */
+    function putbits_noheaders(gfc, val, j) {
+
+        while (j > 0) {
+            var k;
+            if (bufBitIdx == 0) {
+                bufBitIdx = 8;
+                bufByteIdx++;
+                buf[bufByteIdx] = 0;
+            }
+
+            k = Math.min(j, bufBitIdx);
+            j -= k;
+
+            bufBitIdx -= k;
+
+            /* 32 too large on 32 bit machines */
+
+            buf[bufByteIdx] |= ((val >> j) << bufBitIdx);
+            totbit += k;
+        }
+    }
+
+    /**
+     * Some combinations of bitrate, Fs, and stereo make it impossible to stuff
+     * out a frame using just main_data, due to the limited number of bits to
+     * indicate main_data_length. In these situations, we put stuffing bits into
+     * the ancillary data...
+     */
+    function drain_into_ancillary(gfp, remainingBits) {
+        var gfc = gfp.internal_flags;
+        var i;
+
+        if (remainingBits >= 8) {
+            putbits2(gfc, 0x4c, 8);
+            remainingBits -= 8;
+        }
+        if (remainingBits >= 8) {
+            putbits2(gfc, 0x41, 8);
+            remainingBits -= 8;
+        }
+        if (remainingBits >= 8) {
+            putbits2(gfc, 0x4d, 8);
+            remainingBits -= 8;
+        }
+        if (remainingBits >= 8) {
+            putbits2(gfc, 0x45, 8);
+            remainingBits -= 8;
+        }
+
+        if (remainingBits >= 32) {
+            var version = ver.getLameShortVersion();
+            if (remainingBits >= 32)
+                for (i = 0; i < version.length && remainingBits >= 8; ++i) {
+                    remainingBits -= 8;
+                    putbits2(gfc, version.charCodeAt(i), 8); //fix 错误的使用charAt
+                }
+        }
+
+        for (; remainingBits >= 1; remainingBits -= 1) {
+            putbits2(gfc, gfc.ancillary_flag, 1);
+            gfc.ancillary_flag ^= (!gfp.disable_reservoir ? 1 : 0);
+        }
+
+
+    }
+
+    /**
+     * write N bits into the header
+     */
+    function writeheader(gfc, val, j) {
+        var ptr = gfc.header[gfc.h_ptr].ptr;
+
+        while (j > 0) {
+            var k = Math.min(j, 8 - (ptr & 7));
+            j -= k;
+            /* >> 32 too large for 32 bit machines */
+
+            gfc.header[gfc.h_ptr].buf[ptr >> 3] |= ((val >> j)) << (8 - (ptr & 7) - k);
+            ptr += k;
+        }
+        gfc.header[gfc.h_ptr].ptr = ptr;
+    }
+
+    function CRC_update(value, crc) {
+        value <<= 8;
+        for (var i = 0; i < 8; i++) {
+            value <<= 1;
+            crc <<= 1;
+
+            if ((((crc ^ value) & 0x10000) != 0))
+                crc ^= CRC16_POLYNOMIAL;
+        }
+        return crc;
+    }
+
+    this.CRC_writeheader = function (gfc, header) {
+        var crc = 0xffff;
+        /* (jo) init crc16 for error_protection */
+
+        crc = CRC_update(header[2] & 0xff, crc);
+        crc = CRC_update(header[3] & 0xff, crc);
+        for (var i = 6; i < gfc.sideinfo_len; i++) {
+            crc = CRC_update(header[i] & 0xff, crc);
+        }
+
+        header[4] = (byte)(crc >> 8);
+        header[5] = (byte)(crc & 255);
+    };
+
+    function encodeSideInfo2(gfp, bitsPerFrame) {
+        var gfc = gfp.internal_flags;
+        var l3_side;
+        var gr, ch;
+
+        l3_side = gfc.l3_side;
+        gfc.header[gfc.h_ptr].ptr = 0;
+        Arrays.fill(gfc.header[gfc.h_ptr].buf, 0, gfc.sideinfo_len, 0);
+        if (gfp.out_samplerate < 16000)
+            writeheader(gfc, 0xffe, 12);
+        else
+            writeheader(gfc, 0xfff, 12);
+        writeheader(gfc, (gfp.version), 1);
+        writeheader(gfc, 4 - 3, 2);
+        writeheader(gfc, (!gfp.error_protection ? 1 : 0), 1);
+        writeheader(gfc, (gfc.bitrate_index), 4);
+        writeheader(gfc, (gfc.samplerate_index), 2);
+        writeheader(gfc, (gfc.padding), 1);
+        writeheader(gfc, (gfp.extension), 1);
+        writeheader(gfc, (gfp.mode.ordinal()), 2);
+        writeheader(gfc, (gfc.mode_ext), 2);
+        writeheader(gfc, (gfp.copyright), 1);
+        writeheader(gfc, (gfp.original), 1);
+        writeheader(gfc, (gfp.emphasis), 2);
+        if (gfp.error_protection) {
+            writeheader(gfc, 0, 16);
+            /* dummy */
+        }
+
+        if (gfp.version == 1) {
+            /* MPEG1 */
+            writeheader(gfc, (l3_side.main_data_begin), 9);
+
+            if (gfc.channels_out == 2)
+                writeheader(gfc, l3_side.private_bits, 3);
+            else
+                writeheader(gfc, l3_side.private_bits, 5);
+
+            for (ch = 0; ch < gfc.channels_out; ch++) {
+                var band;
+                for (band = 0; band < 4; band++) {
+                    writeheader(gfc, l3_side.scfsi[ch][band], 1);
+                }
+            }
+
+            for (gr = 0; gr < 2; gr++) {
+                for (ch = 0; ch < gfc.channels_out; ch++) {
+                    var gi = l3_side.tt[gr][ch];
+                    writeheader(gfc, gi.part2_3_length + gi.part2_length, 12);
+                    writeheader(gfc, gi.big_values / 2, 9);
+                    writeheader(gfc, gi.global_gain, 8);
+                    writeheader(gfc, gi.scalefac_compress, 4);
+
+                    if (gi.block_type != Encoder.NORM_TYPE) {
+                        writeheader(gfc, 1, 1);
+                        /* window_switching_flag */
+                        writeheader(gfc, gi.block_type, 2);
+                        writeheader(gfc, gi.mixed_block_flag, 1);
+
+                        if (gi.table_select[0] == 14)
+                            gi.table_select[0] = 16;
+                        writeheader(gfc, gi.table_select[0], 5);
+                        if (gi.table_select[1] == 14)
+                            gi.table_select[1] = 16;
+                        writeheader(gfc, gi.table_select[1], 5);
+
+                        writeheader(gfc, gi.subblock_gain[0], 3);
+                        writeheader(gfc, gi.subblock_gain[1], 3);
+                        writeheader(gfc, gi.subblock_gain[2], 3);
+                    } else {
+                        writeheader(gfc, 0, 1);
+                        /* window_switching_flag */
+                        if (gi.table_select[0] == 14)
+                            gi.table_select[0] = 16;
+                        writeheader(gfc, gi.table_select[0], 5);
+                        if (gi.table_select[1] == 14)
+                            gi.table_select[1] = 16;
+                        writeheader(gfc, gi.table_select[1], 5);
+                        if (gi.table_select[2] == 14)
+                            gi.table_select[2] = 16;
+                        writeheader(gfc, gi.table_select[2], 5);
+
+                        writeheader(gfc, gi.region0_count, 4);
+                        writeheader(gfc, gi.region1_count, 3);
+                    }
+                    writeheader(gfc, gi.preflag, 1);
+                    writeheader(gfc, gi.scalefac_scale, 1);
+                    writeheader(gfc, gi.count1table_select, 1);
+                }
+            }
+        } else {
+            /* MPEG2 */
+            writeheader(gfc, (l3_side.main_data_begin), 8);
+            writeheader(gfc, l3_side.private_bits, gfc.channels_out);
+
+            gr = 0;
+            for (ch = 0; ch < gfc.channels_out; ch++) {
+                var gi = l3_side.tt[gr][ch];
+                writeheader(gfc, gi.part2_3_length + gi.part2_length, 12);
+                writeheader(gfc, gi.big_values / 2, 9);
+                writeheader(gfc, gi.global_gain, 8);
+                writeheader(gfc, gi.scalefac_compress, 9);
+
+                if (gi.block_type != Encoder.NORM_TYPE) {
+                    writeheader(gfc, 1, 1);
+                    /* window_switching_flag */
+                    writeheader(gfc, gi.block_type, 2);
+                    writeheader(gfc, gi.mixed_block_flag, 1);
+
+                    if (gi.table_select[0] == 14)
+                        gi.table_select[0] = 16;
+                    writeheader(gfc, gi.table_select[0], 5);
+                    if (gi.table_select[1] == 14)
+                        gi.table_select[1] = 16;
+                    writeheader(gfc, gi.table_select[1], 5);
+
+                    writeheader(gfc, gi.subblock_gain[0], 3);
+                    writeheader(gfc, gi.subblock_gain[1], 3);
+                    writeheader(gfc, gi.subblock_gain[2], 3);
+                } else {
+                    writeheader(gfc, 0, 1);
+                    /* window_switching_flag */
+                    if (gi.table_select[0] == 14)
+                        gi.table_select[0] = 16;
+                    writeheader(gfc, gi.table_select[0], 5);
+                    if (gi.table_select[1] == 14)
+                        gi.table_select[1] = 16;
+                    writeheader(gfc, gi.table_select[1], 5);
+                    if (gi.table_select[2] == 14)
+                        gi.table_select[2] = 16;
+                    writeheader(gfc, gi.table_select[2], 5);
+
+                    writeheader(gfc, gi.region0_count, 4);
+                    writeheader(gfc, gi.region1_count, 3);
+                }
+
+                writeheader(gfc, gi.scalefac_scale, 1);
+                writeheader(gfc, gi.count1table_select, 1);
+            }
+        }
+
+        if (gfp.error_protection) {
+            /* (jo) error_protection: add crc16 information to header */
+            CRC_writeheader(gfc, gfc.header[gfc.h_ptr].buf);
+        }
+
+        {
+            var old = gfc.h_ptr;
+
+            gfc.h_ptr = (old + 1) & (LameInternalFlags.MAX_HEADER_BUF - 1);
+            gfc.header[gfc.h_ptr].write_timing = gfc.header[old].write_timing
+                + bitsPerFrame;
+
+            if (gfc.h_ptr == gfc.w_ptr) {
+                /* yikes! we are out of header buffer space */
+                System.err
+                    .println("Error: MAX_HEADER_BUF too small in bitstream.c \n");
+            }
+
+        }
+    }
+
+    function huffman_coder_count1(gfc, gi) {
+        /* Write count1 area */
+        var h = Tables.ht[gi.count1table_select + 32];
+        var i, bits = 0;
+
+        var ix = gi.big_values;
+        var xr = gi.big_values;
+
+        for (i = (gi.count1 - gi.big_values) / 4; i > 0; --i) {
+            var huffbits = 0;
+            var p = 0, v;
+
+            v = gi.l3_enc[ix + 0];
+            if (v != 0) {
+                p += 8;
+                if (gi.xr[xr + 0] < 0)
+                    huffbits++;
+            }
+
+            v = gi.l3_enc[ix + 1];
+            if (v != 0) {
+                p += 4;
+                huffbits *= 2;
+                if (gi.xr[xr + 1] < 0)
+                    huffbits++;
+            }
+
+            v = gi.l3_enc[ix + 2];
+            if (v != 0) {
+                p += 2;
+                huffbits *= 2;
+                if (gi.xr[xr + 2] < 0)
+                    huffbits++;
+            }
+
+            v = gi.l3_enc[ix + 3];
+            if (v != 0) {
+                p++;
+                huffbits *= 2;
+                if (gi.xr[xr + 3] < 0)
+                    huffbits++;
+            }
+
+            ix += 4;
+            xr += 4;
+            putbits2(gfc, huffbits + h.table[p], h.hlen[p]);
+            bits += h.hlen[p];
+        }
+        return bits;
+    }
+
+    /**
+     * Implements the pseudocode of page 98 of the IS
+     */
+    function Huffmancode(gfc, tableindex, start, end, gi) {
+        var h = Tables.ht[tableindex];
+        var bits = 0;
+
+        if (0 == tableindex)
+            return bits;
+
+        for (var i = start; i < end; i += 2) {
+            var cbits = 0;
+            var xbits = 0;
+            var linbits = h.xlen;
+            var xlen = h.xlen;
+            var ext = 0;
+            var x1 = gi.l3_enc[i];
+            var x2 = gi.l3_enc[i + 1];
+
+            if (x1 != 0) {
+                if (gi.xr[i] < 0)
+                    ext++;
+                cbits--;
+            }
+
+            if (tableindex > 15) {
+                /* use ESC-words */
+                if (x1 > 14) {
+                    var linbits_x1 = x1 - 15;
+                    ext |= linbits_x1 << 1;
+                    xbits = linbits;
+                    x1 = 15;
+                }
+
+                if (x2 > 14) {
+                    var linbits_x2 = x2 - 15;
+                    ext <<= linbits;
+                    ext |= linbits_x2;
+                    xbits += linbits;
+                    x2 = 15;
+                }
+                xlen = 16;
+            }
+
+            if (x2 != 0) {
+                ext <<= 1;
+                if (gi.xr[i + 1] < 0)
+                    ext++;
+                cbits--;
+            }
+
+
+            x1 = x1 * xlen + x2;
+            xbits -= cbits;
+            cbits += h.hlen[x1];
+
+
+            putbits2(gfc, h.table[x1], cbits);
+            putbits2(gfc, ext, xbits);
+            bits += cbits + xbits;
+        }
+        return bits;
+    }
+
+    /**
+     * Note the discussion of huffmancodebits() on pages 28 and 29 of the IS, as
+     * well as the definitions of the side information on pages 26 and 27.
+     */
+    function ShortHuffmancodebits(gfc, gi) {
+        var region1Start = 3 * gfc.scalefac_band.s[3];
+        if (region1Start > gi.big_values)
+            region1Start = gi.big_values;
+
+        /* short blocks do not have a region2 */
+        var bits = Huffmancode(gfc, gi.table_select[0], 0, region1Start, gi);
+        bits += Huffmancode(gfc, gi.table_select[1], region1Start,
+            gi.big_values, gi);
+        return bits;
+    }
+
+    function LongHuffmancodebits(gfc, gi) {
+        var bigvalues, bits;
+        var region1Start, region2Start;
+
+        bigvalues = gi.big_values;
+
+        var i = gi.region0_count + 1;
+        region1Start = gfc.scalefac_band.l[i];
+        i += gi.region1_count + 1;
+        region2Start = gfc.scalefac_band.l[i];
+
+        if (region1Start > bigvalues)
+            region1Start = bigvalues;
+
+        if (region2Start > bigvalues)
+            region2Start = bigvalues;
+
+        bits = Huffmancode(gfc, gi.table_select[0], 0, region1Start, gi);
+        bits += Huffmancode(gfc, gi.table_select[1], region1Start,
+            region2Start, gi);
+        bits += Huffmancode(gfc, gi.table_select[2], region2Start, bigvalues,
+            gi);
+        return bits;
+    }
+
+    function writeMainData(gfp) {
+        var gr, ch, sfb, data_bits, tot_bits = 0;
+        var gfc = gfp.internal_flags;
+        var l3_side = gfc.l3_side;
+
+        if (gfp.version == 1) {
+            /* MPEG 1 */
+            for (gr = 0; gr < 2; gr++) {
+                for (ch = 0; ch < gfc.channels_out; ch++) {
+                    var gi = l3_side.tt[gr][ch];
+                    var slen1 = Takehiro.slen1_tab[gi.scalefac_compress];
+                    var slen2 = Takehiro.slen2_tab[gi.scalefac_compress];
+                    data_bits = 0;
+                    for (sfb = 0; sfb < gi.sfbdivide; sfb++) {
+                        if (gi.scalefac[sfb] == -1)
+                            continue;
+                        /* scfsi is used */
+                        putbits2(gfc, gi.scalefac[sfb], slen1);
+                        data_bits += slen1;
+                    }
+                    for (; sfb < gi.sfbmax; sfb++) {
+                        if (gi.scalefac[sfb] == -1)
+                            continue;
+                        /* scfsi is used */
+                        putbits2(gfc, gi.scalefac[sfb], slen2);
+                        data_bits += slen2;
+                    }
+
+                    if (gi.block_type == Encoder.SHORT_TYPE) {
+                        data_bits += ShortHuffmancodebits(gfc, gi);
+                    } else {
+                        data_bits += LongHuffmancodebits(gfc, gi);
+                    }
+                    data_bits += huffman_coder_count1(gfc, gi);
+                    /* does bitcount in quantize.c agree with actual bit count? */
+                    tot_bits += data_bits;
+                }
+                /* for ch */
+            }
+            /* for gr */
+        } else {
+            /* MPEG 2 */
+            gr = 0;
+            for (ch = 0; ch < gfc.channels_out; ch++) {
+                var gi = l3_side.tt[gr][ch];
+                var i, sfb_partition, scale_bits = 0;
+                data_bits = 0;
+                sfb = 0;
+                sfb_partition = 0;
+
+                if (gi.block_type == Encoder.SHORT_TYPE) {
+                    for (; sfb_partition < 4; sfb_partition++) {
+                        var sfbs = gi.sfb_partition_table[sfb_partition] / 3;
+                        var slen = gi.slen[sfb_partition];
+                        for (i = 0; i < sfbs; i++, sfb++) {
+                            putbits2(gfc,
+                                Math.max(gi.scalefac[sfb * 3 + 0], 0), slen);
+                            putbits2(gfc,
+                                Math.max(gi.scalefac[sfb * 3 + 1], 0), slen);
+                            putbits2(gfc,
+                                Math.max(gi.scalefac[sfb * 3 + 2], 0), slen);
+                            scale_bits += 3 * slen;
+                        }
+                    }
+                    data_bits += ShortHuffmancodebits(gfc, gi);
+                } else {
+                    for (; sfb_partition < 4; sfb_partition++) {
+                        var sfbs = gi.sfb_partition_table[sfb_partition];
+                        var slen = gi.slen[sfb_partition];
+                        for (i = 0; i < sfbs; i++, sfb++) {
+                            putbits2(gfc, Math.max(gi.scalefac[sfb], 0), slen);
+                            scale_bits += slen;
+                        }
+                    }
+                    data_bits += LongHuffmancodebits(gfc, gi);
+                }
+                data_bits += huffman_coder_count1(gfc, gi);
+                /* does bitcount in quantize.c agree with actual bit count? */
+                tot_bits += scale_bits + data_bits;
+            }
+            /* for ch */
+        }
+        /* for gf */
+        return tot_bits;
+    }
+
+    /* main_data */
+
+    function TotalBytes() {
+        this.total = 0;
+    }
+
+    /*
+     * compute the number of bits required to flush all mp3 frames currently in
+     * the buffer. This should be the same as the reservoir size. Only call this
+     * routine between frames - i.e. only after all headers and data have been
+     * added to the buffer by format_bitstream().
+     *
+     * Also compute total_bits_output = size of mp3 buffer (including frame
+     * headers which may not have yet been send to the mp3 buffer) + number of
+     * bits needed to flush all mp3 frames.
+     *
+     * total_bytes_output is the size of the mp3 output buffer if
+     * lame_encode_flush_nogap() was called right now.
+     */
+    function compute_flushbits(gfp, total_bytes_output) {
+        var gfc = gfp.internal_flags;
+        var flushbits, remaining_headers;
+        var bitsPerFrame;
+        var last_ptr, first_ptr;
+        first_ptr = gfc.w_ptr;
+        /* first header to add to bitstream */
+        last_ptr = gfc.h_ptr - 1;
+        /* last header to add to bitstream */
+        if (last_ptr == -1)
+            last_ptr = LameInternalFlags.MAX_HEADER_BUF - 1;
+
+        /* add this many bits to bitstream so we can flush all headers */
+        flushbits = gfc.header[last_ptr].write_timing - totbit;
+        total_bytes_output.total = flushbits;
+
+        if (flushbits >= 0) {
+            /* if flushbits >= 0, some headers have not yet been written */
+            /* reduce flushbits by the size of the headers */
+            remaining_headers = 1 + last_ptr - first_ptr;
+            if (last_ptr < first_ptr)
+                remaining_headers = 1 + last_ptr - first_ptr
+                    + LameInternalFlags.MAX_HEADER_BUF;
+            flushbits -= remaining_headers * 8 * gfc.sideinfo_len;
+        }
+
+        /*
+         * finally, add some bits so that the last frame is complete these bits
+         * are not necessary to decode the last frame, but some decoders will
+         * ignore last frame if these bits are missing
+         */
+        bitsPerFrame = self.getframebits(gfp);
+        flushbits += bitsPerFrame;
+        total_bytes_output.total += bitsPerFrame;
+        /* round up: */
+        if ((total_bytes_output.total % 8) != 0)
+            total_bytes_output.total = 1 + (total_bytes_output.total / 8);
+        else
+            total_bytes_output.total = (total_bytes_output.total / 8);
+        total_bytes_output.total += bufByteIdx + 1;
+
+        if (flushbits < 0) {
+            System.err.println("strange error flushing buffer ... \n");
+        }
+        return flushbits;
+    }
+
+    this.flush_bitstream = function (gfp) {
+        var gfc = gfp.internal_flags;
+        var l3_side;
+        var flushbits;
+        var last_ptr = gfc.h_ptr - 1;
+        /* last header to add to bitstream */
+        if (last_ptr == -1)
+            last_ptr = LameInternalFlags.MAX_HEADER_BUF - 1;
+        l3_side = gfc.l3_side;
+
+        if ((flushbits = compute_flushbits(gfp, new TotalBytes())) < 0)
+            return;
+        drain_into_ancillary(gfp, flushbits);
+
+        /* check that the 100% of the last frame has been written to bitstream */
+
+        /*
+         * we have padded out all frames with ancillary data, which is the same
+         * as filling the bitreservoir with ancillary data, so :
+         */
+        gfc.ResvSize = 0;
+        l3_side.main_data_begin = 0;
+
+        /* save the ReplayGain value */
+        if (gfc.findReplayGain) {
+            var RadioGain = ga.GetTitleGain(gfc.rgdata);
+            gfc.RadioGain = Math.floor(RadioGain * 10.0 + 0.5) | 0;
+            /* round to nearest */
+        }
+
+        /* find the gain and scale change required for no clipping */
+        if (gfc.findPeakSample) {
+            gfc.noclipGainChange = Math.ceil(
+                        Math_log10(gfc.PeakSample / 32767.0) * 20.0 * 10.0) | 0;
+            /* round up */
+
+            if (gfc.noclipGainChange > 0) {
+                /* clipping occurs */
+                if (EQ(gfp.scale, 1.0) || EQ(gfp.scale, 0.0))
+                    gfc.noclipScale = (Math
+                        .floor((32767.0 / gfc.PeakSample) * 100.0) / 100.0);
+                /* round down */
+                else {
+                    /*
+                     * the user specified his own scaling factor. We could
+                     * suggest the scaling factor of
+                     * (32767.0/gfp.PeakSample)*(gfp.scale) but it's usually
+                     * very inaccurate. So we'd rather not advice him on the
+                     * scaling factor.
+                     */
+                    gfc.noclipScale = -1;
+                }
+            } else
+            /* no clipping */
+                gfc.noclipScale = -1;
+        }
+    };
+
+    this.add_dummy_byte = function (gfp, val, n) {
+        var gfc = gfp.internal_flags;
+        var i;
+
+        while (n-- > 0) {
+            putbits_noheaders(gfc, val, 8);
+
+            for (i = 0; i < LameInternalFlags.MAX_HEADER_BUF; ++i)
+                gfc.header[i].write_timing += 8;
+        }
+    };
+
+    /**
+     * This is called after a frame of audio has been quantized and coded. It
+     * will write the encoded audio to the bitstream. Note that from a layer3
+     * encoder's perspective the bit stream is primarily a series of main_data()
+     * blocks, with header and side information inserted at the proper locations
+     * to maintain framing. (See Figure A.7 in the IS).
+     */
+    this.format_bitstream = function (gfp) {
+        var gfc = gfp.internal_flags;
+        var l3_side;
+        l3_side = gfc.l3_side;
+
+        var bitsPerFrame = this.getframebits(gfp);
+        drain_into_ancillary(gfp, l3_side.resvDrain_pre);
+
+        encodeSideInfo2(gfp, bitsPerFrame);
+        var bits = 8 * gfc.sideinfo_len;
+        bits += writeMainData(gfp);
+        drain_into_ancillary(gfp, l3_side.resvDrain_post);
+        bits += l3_side.resvDrain_post;
+
+        l3_side.main_data_begin += (bitsPerFrame - bits) / 8;
+
+        /*
+         * compare number of bits needed to clear all buffered mp3 frames with
+         * what we think the resvsize is:
+         */
+        if (compute_flushbits(gfp, new TotalBytes()) != gfc.ResvSize) {
+            System.err.println("Internal buffer inconsistency. flushbits <> ResvSize");
+        }
+
+        /*
+         * compare main_data_begin for the next frame with what we think the
+         * resvsize is:
+         */
+        if ((l3_side.main_data_begin * 8) != gfc.ResvSize) {
+            System.err.printf("bit reservoir error: \n"
+                + "l3_side.main_data_begin: %d \n"
+                + "Resvoir size:             %d \n"
+                + "resv drain (post)         %d \n"
+                + "resv drain (pre)          %d \n"
+                + "header and sideinfo:      %d \n"
+                + "data bits:                %d \n"
+                + "total bits:               %d (remainder: %d) \n"
+                + "bitsperframe:             %d \n",
+                8 * l3_side.main_data_begin, gfc.ResvSize,
+                l3_side.resvDrain_post, l3_side.resvDrain_pre,
+                8 * gfc.sideinfo_len, bits - l3_side.resvDrain_post - 8
+                * gfc.sideinfo_len, bits, bits % 8, bitsPerFrame);
+
+            System.err.println("This is a fatal error.  It has several possible causes:");
+            System.err.println("90%%  LAME compiled with buggy version of gcc using advanced optimizations");
+            System.err.println(" 9%%  Your system is overclocked");
+            System.err.println(" 1%%  bug in LAME encoding library");
+
+            gfc.ResvSize = l3_side.main_data_begin * 8;
+        }
+        //;
+
+        if (totbit > 1000000000) {
+            /*
+             * to avoid totbit overflow, (at 8h encoding at 128kbs) lets reset
+             * bit counter
+             */
+            var i;
+            for (i = 0; i < LameInternalFlags.MAX_HEADER_BUF; ++i)
+                gfc.header[i].write_timing -= totbit;
+            totbit = 0;
+        }
+
+        return 0;
+    };
+
+    /**
+     * <PRE>
+     * copy data out of the internal MP3 bit buffer into a user supplied
+     *       unsigned char buffer.
+     *
+     *       mp3data=0      indicates data in buffer is an id3tags and VBR tags
+     *       mp3data=1      data is real mp3 frame data.
+     * </PRE>
+     */
+    this.copy_buffer = function (gfc, buffer, bufferPos, size, mp3data) {
+        var minimum = bufByteIdx + 1;
+        if (minimum <= 0)
+            return 0;
+        if (size != 0 && minimum > size) {
+            /* buffer is too small */
+            return -1;
+        }
+        System.arraycopy(buf, 0, buffer, bufferPos, minimum);
+        bufByteIdx = -1;
+        bufBitIdx = 0;
+
+        if (mp3data != 0) {
+            var crc = new_int(1);
+            crc[0] = gfc.nMusicCRC;
+            vbr.updateMusicCRC(crc, buffer, bufferPos, minimum);
+            gfc.nMusicCRC = crc[0];
+
+            /**
+             * sum number of bytes belonging to the mp3 stream this info will be
+             * written into the Xing/LAME header for seeking
+             */
+            if (minimum > 0) {
+                gfc.VBR_seek_table.nBytesWritten += minimum;
+            }
+
+            if (gfc.decode_on_the_fly) { /* decode the frame */
+                var pcm_buf = new_float_n([2, 1152]);
+                var mp3_in = minimum;
+                var samples_out = -1;
+                var i;
+
+                /* re-synthesis to pcm. Repeat until we get a samples_out=0 */
+                while (samples_out != 0) {
+
+                    samples_out = mpg.hip_decode1_unclipped(gfc.hip, buffer,
+                        bufferPos, mp3_in, pcm_buf[0], pcm_buf[1]);
+                    /*
+                     * samples_out = 0: need more data to decode samples_out =
+                     * -1: error. Lets assume 0 pcm output samples_out = number
+                     * of samples output
+                     */
+
+                    /*
+                     * set the lenght of the mp3 input buffer to zero, so that
+                     * in the next iteration of the loop we will be querying
+                     * mpglib about buffered data
+                     */
+                    mp3_in = 0;
+
+                    if (samples_out == -1) {
+                        /*
+                         * error decoding. Not fatal, but might screw up the
+                         * ReplayGain tag. What should we do? Ignore for now
+                         */
+                        samples_out = 0;
+                    }
+                    if (samples_out > 0) {
+                        /* process the PCM data */
+
+                        /*
+                         * this should not be possible, and indicates we have
+                         * overflown the pcm_buf buffer
+                         */
+
+                        if (gfc.findPeakSample) {
+                            for (i = 0; i < samples_out; i++) {
+                                if (pcm_buf[0][i] > gfc.PeakSample)
+                                    gfc.PeakSample = pcm_buf[0][i];
+                                else if (-pcm_buf[0][i] > gfc.PeakSample)
+                                    gfc.PeakSample = -pcm_buf[0][i];
+                            }
+                            if (gfc.channels_out > 1)
+                                for (i = 0; i < samples_out; i++) {
+                                    if (pcm_buf[1][i] > gfc.PeakSample)
+                                        gfc.PeakSample = pcm_buf[1][i];
+                                    else if (-pcm_buf[1][i] > gfc.PeakSample)
+                                        gfc.PeakSample = -pcm_buf[1][i];
+                                }
+                        }
+
+                        if (gfc.findReplayGain)
+                            if (ga.AnalyzeSamples(gfc.rgdata, pcm_buf[0], 0,
+                                    pcm_buf[1], 0, samples_out,
+                                    gfc.channels_out) == GainAnalysis.GAIN_ANALYSIS_ERROR)
+                                return -6;
+
+                    }
+                    /* if (samples_out>0) */
+                }
+                /* while (samples_out!=0) */
+            }
+            /* if (gfc.decode_on_the_fly) */
+
+        }
+        /* if (mp3data) */
+        return minimum;
+    };
+
+    this.init_bit_stream_w = function (gfc) {
+        buf = new_byte(Lame.LAME_MAXMP3BUFFER);
+
+        gfc.h_ptr = gfc.w_ptr = 0;
+        gfc.header[gfc.h_ptr].write_timing = 0;
+        bufByteIdx = -1;
+        bufBitIdx = 0;
+        totbit = 0;
+    };
+
+    // From machine.h
+
+
+}
+
+function HuffCodeTab(len, max, tab, hl) {
+    this.xlen = len;
+    this.linmax = max;
+    this.table = tab;
+    this.hlen = hl;
+}
+
+var Tables = {};
+
+
+Tables.t1HB = [
+    1, 1,
+    1, 0
+];
+
+Tables.t2HB = [
+    1, 2, 1,
+    3, 1, 1,
+    3, 2, 0
+];
+
+Tables.t3HB = [
+    3, 2, 1,
+    1, 1, 1,
+    3, 2, 0
+];
+
+Tables.t5HB = [
+    1, 2, 6, 5,
+    3, 1, 4, 4,
+    7, 5, 7, 1,
+    6, 1, 1, 0
+];
+
+Tables.t6HB = [
+    7, 3, 5, 1,
+    6, 2, 3, 2,
+    5, 4, 4, 1,
+    3, 3, 2, 0
+];
+
+Tables.t7HB = [
+    1, 2, 10, 19, 16, 10,
+    3, 3, 7, 10, 5, 3,
+    11, 4, 13, 17, 8, 4,
+    12, 11, 18, 15, 11, 2,
+    7, 6, 9, 14, 3, 1,
+    6, 4, 5, 3, 2, 0
+];
+
+Tables.t8HB = [
+    3, 4, 6, 18, 12, 5,
+    5, 1, 2, 16, 9, 3,
+    7, 3, 5, 14, 7, 3,
+    19, 17, 15, 13, 10, 4,
+    13, 5, 8, 11, 5, 1,
+    12, 4, 4, 1, 1, 0
+];
+
+Tables.t9HB = [
+    7, 5, 9, 14, 15, 7,
+    6, 4, 5, 5, 6, 7,
+    7, 6, 8, 8, 8, 5,
+    15, 6, 9, 10, 5, 1,
+    11, 7, 9, 6, 4, 1,
+    14, 4, 6, 2, 6, 0
+];
+
+Tables.t10HB = [
+    1, 2, 10, 23, 35, 30, 12, 17,
+    3, 3, 8, 12, 18, 21, 12, 7,
+    11, 9, 15, 21, 32, 40, 19, 6,
+    14, 13, 22, 34, 46, 23, 18, 7,
+    20, 19, 33, 47, 27, 22, 9, 3,
+    31, 22, 41, 26, 21, 20, 5, 3,
+    14, 13, 10, 11, 16, 6, 5, 1,
+    9, 8, 7, 8, 4, 4, 2, 0
+];
+
+Tables.t11HB = [
+    3, 4, 10, 24, 34, 33, 21, 15,
+    5, 3, 4, 10, 32, 17, 11, 10,
+    11, 7, 13, 18, 30, 31, 20, 5,
+    25, 11, 19, 59, 27, 18, 12, 5,
+    35, 33, 31, 58, 30, 16, 7, 5,
+    28, 26, 32, 19, 17, 15, 8, 14,
+    14, 12, 9, 13, 14, 9, 4, 1,
+    11, 4, 6, 6, 6, 3, 2, 0
+];
+
+Tables.t12HB = [
+    9, 6, 16, 33, 41, 39, 38, 26,
+    7, 5, 6, 9, 23, 16, 26, 11,
+    17, 7, 11, 14, 21, 30, 10, 7,
+    17, 10, 15, 12, 18, 28, 14, 5,
+    32, 13, 22, 19, 18, 16, 9, 5,
+    40, 17, 31, 29, 17, 13, 4, 2,
+    27, 12, 11, 15, 10, 7, 4, 1,
+    27, 12, 8, 12, 6, 3, 1, 0
+];
+
+Tables.t13HB = [
+    1, 5, 14, 21, 34, 51, 46, 71, 42, 52, 68, 52, 67, 44, 43, 19,
+    3, 4, 12, 19, 31, 26, 44, 33, 31, 24, 32, 24, 31, 35, 22, 14,
+    15, 13, 23, 36, 59, 49, 77, 65, 29, 40, 30, 40, 27, 33, 42, 16,
+    22, 20, 37, 61, 56, 79, 73, 64, 43, 76, 56, 37, 26, 31, 25, 14,
+    35, 16, 60, 57, 97, 75, 114, 91, 54, 73, 55, 41, 48, 53, 23, 24,
+    58, 27, 50, 96, 76, 70, 93, 84, 77, 58, 79, 29, 74, 49, 41, 17,
+    47, 45, 78, 74, 115, 94, 90, 79, 69, 83, 71, 50, 59, 38, 36, 15,
+    72, 34, 56, 95, 92, 85, 91, 90, 86, 73, 77, 65, 51, 44, 43, 42,
+    43, 20, 30, 44, 55, 78, 72, 87, 78, 61, 46, 54, 37, 30, 20, 16,
+    53, 25, 41, 37, 44, 59, 54, 81, 66, 76, 57, 54, 37, 18, 39, 11,
+    35, 33, 31, 57, 42, 82, 72, 80, 47, 58, 55, 21, 22, 26, 38, 22,
+    53, 25, 23, 38, 70, 60, 51, 36, 55, 26, 34, 23, 27, 14, 9, 7,
+    34, 32, 28, 39, 49, 75, 30, 52, 48, 40, 52, 28, 18, 17, 9, 5,
+    45, 21, 34, 64, 56, 50, 49, 45, 31, 19, 12, 15, 10, 7, 6, 3,
+    48, 23, 20, 39, 36, 35, 53, 21, 16, 23, 13, 10, 6, 1, 4, 2,
+    16, 15, 17, 27, 25, 20, 29, 11, 17, 12, 16, 8, 1, 1, 0, 1
+];
+
+Tables.t15HB = [
+    7, 12, 18, 53, 47, 76, 124, 108, 89, 123, 108, 119, 107, 81, 122, 63,
+    13, 5, 16, 27, 46, 36, 61, 51, 42, 70, 52, 83, 65, 41, 59, 36,
+    19, 17, 15, 24, 41, 34, 59, 48, 40, 64, 50, 78, 62, 80, 56, 33,
+    29, 28, 25, 43, 39, 63, 55, 93, 76, 59, 93, 72, 54, 75, 50, 29,
+    52, 22, 42, 40, 67, 57, 95, 79, 72, 57, 89, 69, 49, 66, 46, 27,
+    77, 37, 35, 66, 58, 52, 91, 74, 62, 48, 79, 63, 90, 62, 40, 38,
+    125, 32, 60, 56, 50, 92, 78, 65, 55, 87, 71, 51, 73, 51, 70, 30,
+    109, 53, 49, 94, 88, 75, 66, 122, 91, 73, 56, 42, 64, 44, 21, 25,
+    90, 43, 41, 77, 73, 63, 56, 92, 77, 66, 47, 67, 48, 53, 36, 20,
+    71, 34, 67, 60, 58, 49, 88, 76, 67, 106, 71, 54, 38, 39, 23, 15,
+    109, 53, 51, 47, 90, 82, 58, 57, 48, 72, 57, 41, 23, 27, 62, 9,
+    86, 42, 40, 37, 70, 64, 52, 43, 70, 55, 42, 25, 29, 18, 11, 11,
+    118, 68, 30, 55, 50, 46, 74, 65, 49, 39, 24, 16, 22, 13, 14, 7,
+    91, 44, 39, 38, 34, 63, 52, 45, 31, 52, 28, 19, 14, 8, 9, 3,
+    123, 60, 58, 53, 47, 43, 32, 22, 37, 24, 17, 12, 15, 10, 2, 1,
+    71, 37, 34, 30, 28, 20, 17, 26, 21, 16, 10, 6, 8, 6, 2, 0
+];
+
+Tables.t16HB = [
+    1, 5, 14, 44, 74, 63, 110, 93, 172, 149, 138, 242, 225, 195, 376, 17,
+    3, 4, 12, 20, 35, 62, 53, 47, 83, 75, 68, 119, 201, 107, 207, 9,
+    15, 13, 23, 38, 67, 58, 103, 90, 161, 72, 127, 117, 110, 209, 206, 16,
+    45, 21, 39, 69, 64, 114, 99, 87, 158, 140, 252, 212, 199, 387, 365, 26,
+    75, 36, 68, 65, 115, 101, 179, 164, 155, 264, 246, 226, 395, 382, 362, 9,
+    66, 30, 59, 56, 102, 185, 173, 265, 142, 253, 232, 400, 388, 378, 445, 16,
+    111, 54, 52, 100, 184, 178, 160, 133, 257, 244, 228, 217, 385, 366, 715, 10,
+    98, 48, 91, 88, 165, 157, 148, 261, 248, 407, 397, 372, 380, 889, 884, 8,
+    85, 84, 81, 159, 156, 143, 260, 249, 427, 401, 392, 383, 727, 713, 708, 7,
+    154, 76, 73, 141, 131, 256, 245, 426, 406, 394, 384, 735, 359, 710, 352, 11,
+    139, 129, 67, 125, 247, 233, 229, 219, 393, 743, 737, 720, 885, 882, 439, 4,
+    243, 120, 118, 115, 227, 223, 396, 746, 742, 736, 721, 712, 706, 223, 436, 6,
+    202, 224, 222, 218, 216, 389, 386, 381, 364, 888, 443, 707, 440, 437, 1728, 4,
+    747, 211, 210, 208, 370, 379, 734, 723, 714, 1735, 883, 877, 876, 3459, 865, 2,
+    377, 369, 102, 187, 726, 722, 358, 711, 709, 866, 1734, 871, 3458, 870, 434, 0,
+    12, 10, 7, 11, 10, 17, 11, 9, 13, 12, 10, 7, 5, 3, 1, 3
+];
+
+Tables.t24HB = [
+    15, 13, 46, 80, 146, 262, 248, 434, 426, 669, 653, 649, 621, 517, 1032, 88,
+    14, 12, 21, 38, 71, 130, 122, 216, 209, 198, 327, 345, 319, 297, 279, 42,
+    47, 22, 41, 74, 68, 128, 120, 221, 207, 194, 182, 340, 315, 295, 541, 18,
+    81, 39, 75, 70, 134, 125, 116, 220, 204, 190, 178, 325, 311, 293, 271, 16,
+    147, 72, 69, 135, 127, 118, 112, 210, 200, 188, 352, 323, 306, 285, 540, 14,
+    263, 66, 129, 126, 119, 114, 214, 202, 192, 180, 341, 317, 301, 281, 262, 12,
+    249, 123, 121, 117, 113, 215, 206, 195, 185, 347, 330, 308, 291, 272, 520, 10,
+    435, 115, 111, 109, 211, 203, 196, 187, 353, 332, 313, 298, 283, 531, 381, 17,
+    427, 212, 208, 205, 201, 193, 186, 177, 169, 320, 303, 286, 268, 514, 377, 16,
+    335, 199, 197, 191, 189, 181, 174, 333, 321, 305, 289, 275, 521, 379, 371, 11,
+    668, 184, 183, 179, 175, 344, 331, 314, 304, 290, 277, 530, 383, 373, 366, 10,
+    652, 346, 171, 168, 164, 318, 309, 299, 287, 276, 263, 513, 375, 368, 362, 6,
+    648, 322, 316, 312, 307, 302, 292, 284, 269, 261, 512, 376, 370, 364, 359, 4,
+    620, 300, 296, 294, 288, 282, 273, 266, 515, 380, 374, 369, 365, 361, 357, 2,
+    1033, 280, 278, 274, 267, 264, 259, 382, 378, 372, 367, 363, 360, 358, 356, 0,
+    43, 20, 19, 17, 15, 13, 11, 9, 7, 6, 4, 7, 5, 3, 1, 3
+];
+
+Tables.t32HB = [
+    1 << 0, 5 << 1, 4 << 1, 5 << 2, 6 << 1, 5 << 2, 4 << 2, 4 << 3,
+    7 << 1, 3 << 2, 6 << 2, 0 << 3, 7 << 2, 2 << 3, 3 << 3, 1 << 4
+];
+
+Tables.t33HB = [
+    15 << 0, 14 << 1, 13 << 1, 12 << 2, 11 << 1, 10 << 2, 9 << 2, 8 << 3,
+    7 << 1, 6 << 2, 5 << 2, 4 << 3, 3 << 2, 2 << 3, 1 << 3, 0 << 4
+];
+
+Tables.t1l = [
+    1, 4,
+    3, 5
+];
+
+Tables.t2l = [
+    1, 4, 7,
+    4, 5, 7,
+    6, 7, 8
+];
+
+Tables.t3l = [
+    2, 3, 7,
+    4, 4, 7,
+    6, 7, 8
+];
+
+Tables.t5l = [
+    1, 4, 7, 8,
+    4, 5, 8, 9,
+    7, 8, 9, 10,
+    8, 8, 9, 10
+];
+
+Tables.t6l = [
+    3, 4, 6, 8,
+    4, 4, 6, 7,
+    5, 6, 7, 8,
+    7, 7, 8, 9
+];
+
+Tables.t7l = [
+    1, 4, 7, 9, 9, 10,
+    4, 6, 8, 9, 9, 10,
+    7, 7, 9, 10, 10, 11,
+    8, 9, 10, 11, 11, 11,
+    8, 9, 10, 11, 11, 12,
+    9, 10, 11, 12, 12, 12
+];
+
+Tables.t8l = [
+    2, 4, 7, 9, 9, 10,
+    4, 4, 6, 10, 10, 10,
+    7, 6, 8, 10, 10, 11,
+    9, 10, 10, 11, 11, 12,
+    9, 9, 10, 11, 12, 12,
+    10, 10, 11, 11, 13, 13
+];
+
+Tables.t9l = [
+    3, 4, 6, 7, 9, 10,
+    4, 5, 6, 7, 8, 10,
+    5, 6, 7, 8, 9, 10,
+    7, 7, 8, 9, 9, 10,
+    8, 8, 9, 9, 10, 11,
+    9, 9, 10, 10, 11, 11
+];
+
+Tables.t10l = [
+    1, 4, 7, 9, 10, 10, 10, 11,
+    4, 6, 8, 9, 10, 11, 10, 10,
+    7, 8, 9, 10, 11, 12, 11, 11,
+    8, 9, 10, 11, 12, 12, 11, 12,
+    9, 10, 11, 12, 12, 12, 12, 12,
+    10, 11, 12, 12, 13, 13, 12, 13,
+    9, 10, 11, 12, 12, 12, 13, 13,
+    10, 10, 11, 12, 12, 13, 13, 13
+];
+
+Tables.t11l = [
+    2, 4, 6, 8, 9, 10, 9, 10,
+    4, 5, 6, 8, 10, 10, 9, 10,
+    6, 7, 8, 9, 10, 11, 10, 10,
+    8, 8, 9, 11, 10, 12, 10, 11,
+    9, 10, 10, 11, 11, 12, 11, 12,
+    9, 10, 11, 12, 12, 13, 12, 13,
+    9, 9, 9, 10, 11, 12, 12, 12,
+    9, 9, 10, 11, 12, 12, 12, 12
+];
+
+Tables.t12l = [
+    4, 4, 6, 8, 9, 10, 10, 10,
+    4, 5, 6, 7, 9, 9, 10, 10,
+    6, 6, 7, 8, 9, 10, 9, 10,
+    7, 7, 8, 8, 9, 10, 10, 10,
+    8, 8, 9, 9, 10, 10, 10, 11,
+    9, 9, 10, 10, 10, 11, 10, 11,
+    9, 9, 9, 10, 10, 11, 11, 12,
+    10, 10, 10, 11, 11, 11, 11, 12
+];
+
+Tables.t13l = [
+    1, 5, 7, 8, 9, 10, 10, 11, 10, 11, 12, 12, 13, 13, 14, 14,
+    4, 6, 8, 9, 10, 10, 11, 11, 11, 11, 12, 12, 13, 14, 14, 14,
+    7, 8, 9, 10, 11, 11, 12, 12, 11, 12, 12, 13, 13, 14, 15, 15,
+    8, 9, 10, 11, 11, 12, 12, 12, 12, 13, 13, 13, 13, 14, 15, 15,
+    9, 9, 11, 11, 12, 12, 13, 13, 12, 13, 13, 14, 14, 15, 15, 16,
+    10, 10, 11, 12, 12, 12, 13, 13, 13, 13, 14, 13, 15, 15, 16, 16,
+    10, 11, 12, 12, 13, 13, 13, 13, 13, 14, 14, 14, 15, 15, 16, 16,
+    11, 11, 12, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 16, 18, 18,
+    10, 10, 11, 12, 12, 13, 13, 14, 14, 14, 14, 15, 15, 16, 17, 17,
+    11, 11, 12, 12, 13, 13, 13, 15, 14, 15, 15, 16, 16, 16, 18, 17,
+    11, 12, 12, 13, 13, 14, 14, 15, 14, 15, 16, 15, 16, 17, 18, 19,
+    12, 12, 12, 13, 14, 14, 14, 14, 15, 15, 15, 16, 17, 17, 17, 18,
+    12, 13, 13, 14, 14, 15, 14, 15, 16, 16, 17, 17, 17, 18, 18, 18,
+    13, 13, 14, 15, 15, 15, 16, 16, 16, 16, 16, 17, 18, 17, 18, 18,
+    14, 14, 14, 15, 15, 15, 17, 16, 16, 19, 17, 17, 17, 19, 18, 18,
+    13, 14, 15, 16, 16, 16, 17, 16, 17, 17, 18, 18, 21, 20, 21, 18
+];
+
+Tables.t15l = [
+    3, 5, 6, 8, 8, 9, 10, 10, 10, 11, 11, 12, 12, 12, 13, 14,
+    5, 5, 7, 8, 9, 9, 10, 10, 10, 11, 11, 12, 12, 12, 13, 13,
+    6, 7, 7, 8, 9, 9, 10, 10, 10, 11, 11, 12, 12, 13, 13, 13,
+    7, 8, 8, 9, 9, 10, 10, 11, 11, 11, 12, 12, 12, 13, 13, 13,
+    8, 8, 9, 9, 10, 10, 11, 11, 11, 11, 12, 12, 12, 13, 13, 13,
+    9, 9, 9, 10, 10, 10, 11, 11, 11, 11, 12, 12, 13, 13, 13, 14,
+    10, 9, 10, 10, 10, 11, 11, 11, 11, 12, 12, 12, 13, 13, 14, 14,
+    10, 10, 10, 11, 11, 11, 11, 12, 12, 12, 12, 12, 13, 13, 13, 14,
+    10, 10, 10, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 14, 14, 14,
+    10, 10, 11, 11, 11, 11, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14,
+    11, 11, 11, 11, 12, 12, 12, 12, 12, 13, 13, 13, 13, 14, 15, 14,
+    11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 15,
+    12, 12, 11, 12, 12, 12, 13, 13, 13, 13, 13, 13, 14, 14, 15, 15,
+    12, 12, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 14, 14, 15, 15,
+    13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 14, 15,
+    13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 15, 15, 15, 15
+];
+
+Tables.t16_5l = [
+    1, 5, 7, 9, 10, 10, 11, 11, 12, 12, 12, 13, 13, 13, 14, 11,
+    4, 6, 8, 9, 10, 11, 11, 11, 12, 12, 12, 13, 14, 13, 14, 11,
+    7, 8, 9, 10, 11, 11, 12, 12, 13, 12, 13, 13, 13, 14, 14, 12,
+    9, 9, 10, 11, 11, 12, 12, 12, 13, 13, 14, 14, 14, 15, 15, 13,
+    10, 10, 11, 11, 12, 12, 13, 13, 13, 14, 14, 14, 15, 15, 15, 12,
+    10, 10, 11, 11, 12, 13, 13, 14, 13, 14, 14, 15, 15, 15, 16, 13,
+    11, 11, 11, 12, 13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 16, 13,
+    11, 11, 12, 12, 13, 13, 13, 14, 14, 15, 15, 15, 15, 17, 17, 13,
+    11, 12, 12, 13, 13, 13, 14, 14, 15, 15, 15, 15, 16, 16, 16, 13,
+    12, 12, 12, 13, 13, 14, 14, 15, 15, 15, 15, 16, 15, 16, 15, 14,
+    12, 13, 12, 13, 14, 14, 14, 14, 15, 16, 16, 16, 17, 17, 16, 13,
+    13, 13, 13, 13, 14, 14, 15, 16, 16, 16, 16, 16, 16, 15, 16, 14,
+    13, 14, 14, 14, 14, 15, 15, 15, 15, 17, 16, 16, 16, 16, 18, 14,
+    15, 14, 14, 14, 15, 15, 16, 16, 16, 18, 17, 17, 17, 19, 17, 14,
+    14, 15, 13, 14, 16, 16, 15, 16, 16, 17, 18, 17, 19, 17, 16, 14,
+    11, 11, 11, 12, 12, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 12
+];
+
+Tables.t16l = [
+    1, 5, 7, 9, 10, 10, 11, 11, 12, 12, 12, 13, 13, 13, 14, 10,
+    4, 6, 8, 9, 10, 11, 11, 11, 12, 12, 12, 13, 14, 13, 14, 10,
+    7, 8, 9, 10, 11, 11, 12, 12, 13, 12, 13, 13, 13, 14, 14, 11,
+    9, 9, 10, 11, 11, 12, 12, 12, 13, 13, 14, 14, 14, 15, 15, 12,
+    10, 10, 11, 11, 12, 12, 13, 13, 13, 14, 14, 14, 15, 15, 15, 11,
+    10, 10, 11, 11, 12, 13, 13, 14, 13, 14, 14, 15, 15, 15, 16, 12,
+    11, 11, 11, 12, 13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 16, 12,
+    11, 11, 12, 12, 13, 13, 13, 14, 14, 15, 15, 15, 15, 17, 17, 12,
+    11, 12, 12, 13, 13, 13, 14, 14, 15, 15, 15, 15, 16, 16, 16, 12,
+    12, 12, 12, 13, 13, 14, 14, 15, 15, 15, 15, 16, 15, 16, 15, 13,
+    12, 13, 12, 13, 14, 14, 14, 14, 15, 16, 16, 16, 17, 17, 16, 12,
+    13, 13, 13, 13, 14, 14, 15, 16, 16, 16, 16, 16, 16, 15, 16, 13,
+    13, 14, 14, 14, 14, 15, 15, 15, 15, 17, 16, 16, 16, 16, 18, 13,
+    15, 14, 14, 14, 15, 15, 16, 16, 16, 18, 17, 17, 17, 19, 17, 13,
+    14, 15, 13, 14, 16, 16, 15, 16, 16, 17, 18, 17, 19, 17, 16, 13,
+    10, 10, 10, 11, 11, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 10
+];
+
+Tables.t24l = [
+    4, 5, 7, 8, 9, 10, 10, 11, 11, 12, 12, 12, 12, 12, 13, 10,
+    5, 6, 7, 8, 9, 10, 10, 11, 11, 11, 12, 12, 12, 12, 12, 10,
+    7, 7, 8, 9, 9, 10, 10, 11, 11, 11, 11, 12, 12, 12, 13, 9,
+    8, 8, 9, 9, 10, 10, 10, 11, 11, 11, 11, 12, 12, 12, 12, 9,
+    9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 12, 12, 12, 12, 13, 9,
+    10, 9, 10, 10, 10, 10, 11, 11, 11, 11, 12, 12, 12, 12, 12, 9,
+    10, 10, 10, 10, 10, 11, 11, 11, 11, 12, 12, 12, 12, 12, 13, 9,
+    11, 10, 10, 10, 11, 11, 11, 11, 12, 12, 12, 12, 12, 13, 13, 10,
+    11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 10,
+    11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 13, 13, 13, 10,
+    12, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 10,
+    12, 12, 11, 11, 11, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 10,
+    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 10,
+    12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 10,
+    13, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 10,
+    9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 6
+];
+
+Tables.t32l = [
+    1 + 0, 4 + 1, 4 + 1, 5 + 2, 4 + 1, 6 + 2, 5 + 2, 6 + 3,
+    4 + 1, 5 + 2, 5 + 2, 6 + 3, 5 + 2, 6 + 3, 6 + 3, 6 + 4
+];
+
+Tables.t33l = [
+    4 + 0, 4 + 1, 4 + 1, 4 + 2, 4 + 1, 4 + 2, 4 + 2, 4 + 3,
+    4 + 1, 4 + 2, 4 + 2, 4 + 3, 4 + 2, 4 + 3, 4 + 3, 4 + 4
+];
+
+Tables.ht = [
+    /* xlen, linmax, table, hlen */
+    new HuffCodeTab(0, 0, null, null),
+    new HuffCodeTab(2, 0, Tables.t1HB, Tables.t1l),
+    new HuffCodeTab(3, 0, Tables.t2HB, Tables.t2l),
+    new HuffCodeTab(3, 0, Tables.t3HB, Tables.t3l),
+    new HuffCodeTab(0, 0, null, null), /* Apparently not used */
+    new HuffCodeTab(4, 0, Tables.t5HB, Tables.t5l),
+    new HuffCodeTab(4, 0, Tables.t6HB, Tables.t6l),
+    new HuffCodeTab(6, 0, Tables.t7HB, Tables.t7l),
+    new HuffCodeTab(6, 0, Tables.t8HB, Tables.t8l),
+    new HuffCodeTab(6, 0, Tables.t9HB, Tables.t9l),
+    new HuffCodeTab(8, 0, Tables.t10HB, Tables.t10l),
+    new HuffCodeTab(8, 0, Tables.t11HB, Tables.t11l),
+    new HuffCodeTab(8, 0, Tables.t12HB, Tables.t12l),
+    new HuffCodeTab(16, 0, Tables.t13HB, Tables.t13l),
+    new HuffCodeTab(0, 0, null, Tables.t16_5l), /* Apparently not used */
+    new HuffCodeTab(16, 0, Tables.t15HB, Tables.t15l),
+
+    new HuffCodeTab(1, 1, Tables.t16HB, Tables.t16l),
+    new HuffCodeTab(2, 3, Tables.t16HB, Tables.t16l),
+    new HuffCodeTab(3, 7, Tables.t16HB, Tables.t16l),
+    new HuffCodeTab(4, 15, Tables.t16HB, Tables.t16l),
+    new HuffCodeTab(6, 63, Tables.t16HB, Tables.t16l),
+    new HuffCodeTab(8, 255, Tables.t16HB, Tables.t16l),
+    new HuffCodeTab(10, 1023, Tables.t16HB, Tables.t16l),
+    new HuffCodeTab(13, 8191, Tables.t16HB, Tables.t16l),
+
+    new HuffCodeTab(4, 15, Tables.t24HB, Tables.t24l),
+    new HuffCodeTab(5, 31, Tables.t24HB, Tables.t24l),
+    new HuffCodeTab(6, 63, Tables.t24HB, Tables.t24l),
+    new HuffCodeTab(7, 127, Tables.t24HB, Tables.t24l),
+    new HuffCodeTab(8, 255, Tables.t24HB, Tables.t24l),
+    new HuffCodeTab(9, 511, Tables.t24HB, Tables.t24l),
+    new HuffCodeTab(11, 2047, Tables.t24HB, Tables.t24l),
+    new HuffCodeTab(13, 8191, Tables.t24HB, Tables.t24l),
+
+    new HuffCodeTab(0, 0, Tables.t32HB, Tables.t32l),
+    new HuffCodeTab(0, 0, Tables.t33HB, Tables.t33l),
+];
+
+/**
+ * <CODE>
+ *  for (i = 0; i < 16*16; i++) [
+ *      largetbl[i] = ((ht[16].hlen[i]) << 16) + ht[24].hlen[i];
+ *  ]
+ * </CODE>
+ *
+ */
+Tables.largetbl = [
+    0x010004, 0x050005, 0x070007, 0x090008, 0x0a0009, 0x0a000a, 0x0b000a, 0x0b000b,
+    0x0c000b, 0x0c000c, 0x0c000c, 0x0d000c, 0x0d000c, 0x0d000c, 0x0e000d, 0x0a000a,
+    0x040005, 0x060006, 0x080007, 0x090008, 0x0a0009, 0x0b000a, 0x0b000a, 0x0b000b,
+    0x0c000b, 0x0c000b, 0x0c000c, 0x0d000c, 0x0e000c, 0x0d000c, 0x0e000c, 0x0a000a,
+    0x070007, 0x080007, 0x090008, 0x0a0009, 0x0b0009, 0x0b000a, 0x0c000a, 0x0c000b,
+    0x0d000b, 0x0c000b, 0x0d000b, 0x0d000c, 0x0d000c, 0x0e000c, 0x0e000d, 0x0b0009,
+    0x090008, 0x090008, 0x0a0009, 0x0b0009, 0x0b000a, 0x0c000a, 0x0c000a, 0x0c000b,
+    0x0d000b, 0x0d000b, 0x0e000b, 0x0e000c, 0x0e000c, 0x0f000c, 0x0f000c, 0x0c0009,
+    0x0a0009, 0x0a0009, 0x0b0009, 0x0b000a, 0x0c000a, 0x0c000a, 0x0d000a, 0x0d000b,
+    0x0d000b, 0x0e000b, 0x0e000c, 0x0e000c, 0x0f000c, 0x0f000c, 0x0f000d, 0x0b0009,
+    0x0a000a, 0x0a0009, 0x0b000a, 0x0b000a, 0x0c000a, 0x0d000a, 0x0d000b, 0x0e000b,
+    0x0d000b, 0x0e000b, 0x0e000c, 0x0f000c, 0x0f000c, 0x0f000c, 0x10000c, 0x0c0009,
+    0x0b000a, 0x0b000a, 0x0b000a, 0x0c000a, 0x0d000a, 0x0d000b, 0x0d000b, 0x0d000b,
+    0x0e000b, 0x0e000c, 0x0e000c, 0x0e000c, 0x0f000c, 0x0f000c, 0x10000d, 0x0c0009,
+    0x0b000b, 0x0b000a, 0x0c000a, 0x0c000a, 0x0d000b, 0x0d000b, 0x0d000b, 0x0e000b,
+    0x0e000c, 0x0f000c, 0x0f000c, 0x0f000c, 0x0f000c, 0x11000d, 0x11000d, 0x0c000a,
+    0x0b000b, 0x0c000b, 0x0c000b, 0x0d000b, 0x0d000b, 0x0d000b, 0x0e000b, 0x0e000b,
+    0x0f000b, 0x0f000c, 0x0f000c, 0x0f000c, 0x10000c, 0x10000d, 0x10000d, 0x0c000a,
+    0x0c000b, 0x0c000b, 0x0c000b, 0x0d000b, 0x0d000b, 0x0e000b, 0x0e000b, 0x0f000c,
+    0x0f000c, 0x0f000c, 0x0f000c, 0x10000c, 0x0f000d, 0x10000d, 0x0f000d, 0x0d000a,
+    0x0c000c, 0x0d000b, 0x0c000b, 0x0d000b, 0x0e000b, 0x0e000c, 0x0e000c, 0x0e000c,
+    0x0f000c, 0x10000c, 0x10000c, 0x10000d, 0x11000d, 0x11000d, 0x10000d, 0x0c000a,
+    0x0d000c, 0x0d000c, 0x0d000b, 0x0d000b, 0x0e000b, 0x0e000c, 0x0f000c, 0x10000c,
+    0x10000c, 0x10000c, 0x10000c, 0x10000d, 0x10000d, 0x0f000d, 0x10000d, 0x0d000a,
+    0x0d000c, 0x0e000c, 0x0e000c, 0x0e000c, 0x0e000c, 0x0f000c, 0x0f000c, 0x0f000c,
+    0x0f000c, 0x11000c, 0x10000d, 0x10000d, 0x10000d, 0x10000d, 0x12000d, 0x0d000a,
+    0x0f000c, 0x0e000c, 0x0e000c, 0x0e000c, 0x0f000c, 0x0f000c, 0x10000c, 0x10000c,
+    0x10000d, 0x12000d, 0x11000d, 0x11000d, 0x11000d, 0x13000d, 0x11000d, 0x0d000a,
+    0x0e000d, 0x0f000c, 0x0d000c, 0x0e000c, 0x10000c, 0x10000c, 0x0f000c, 0x10000d,
+    0x10000d, 0x11000d, 0x12000d, 0x11000d, 0x13000d, 0x11000d, 0x10000d, 0x0d000a,
+    0x0a0009, 0x0a0009, 0x0a0009, 0x0b0009, 0x0b0009, 0x0c0009, 0x0c0009, 0x0c0009,
+    0x0d0009, 0x0d0009, 0x0d0009, 0x0d000a, 0x0d000a, 0x0d000a, 0x0d000a, 0x0a0006
+];
+/**
+ * <CODE>
+ *  for (i = 0; i < 3*3; i++) [
+ *      table23[i] = ((ht[2].hlen[i]) << 16) + ht[3].hlen[i];
+ *  ]
+ * </CODE>
+ *
+ */
+Tables.table23 = [
+    0x010002, 0x040003, 0x070007,
+    0x040004, 0x050004, 0x070007,
+    0x060006, 0x070007, 0x080008
+];
+
+/**
+ * <CODE>
+ *  for (i = 0; i < 4*4; i++) [
+ *       table56[i] = ((ht[5].hlen[i]) << 16) + ht[6].hlen[i];
+ *   ]
+ * </CODE>
+ *
+ */
+Tables.table56 = [
+    0x010003, 0x040004, 0x070006, 0x080008, 0x040004, 0x050004, 0x080006, 0x090007,
+    0x070005, 0x080006, 0x090007, 0x0a0008, 0x080007, 0x080007, 0x090008, 0x0a0009
+];
+
+Tables.bitrate_table = [
+    [0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, -1], /* MPEG 2 */
+    [0, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, -1], /* MPEG 1 */
+    [0, 8, 16, 24, 32, 40, 48, 56, 64, -1, -1, -1, -1, -1, -1, -1], /* MPEG 2.5 */
+];
+
+/**
+ * MPEG 2, MPEG 1, MPEG 2.5.
+ */
+Tables.samplerate_table = [
+    [22050, 24000, 16000, -1],
+    [44100, 48000, 32000, -1],
+    [11025, 12000, 8000, -1],
+];
+
+/**
+ * This is the scfsi_band table from 2.4.2.7 of the IS.
+ */
+Tables.scfsi_band = [0, 6, 11, 16, 21];
+
+function MeanBits(meanBits) {
+    this.bits = meanBits;
+}
+
+//package mp3;
+
+function CalcNoiseResult() {
+    /**
+     * sum of quantization noise > masking
+     */
+    this.over_noise = 0.;
+    /**
+     * sum of all quantization noise
+     */
+    this.tot_noise = 0.;
+    /**
+     * max quantization noise
+     */
+    this.max_noise = 0.;
+    /**
+     * number of quantization noise > masking
+     */
+    this.over_count = 0;
+    /**
+     * SSD-like cost of distorted bands
+     */
+    this.over_SSD = 0;
+    this.bits = 0;
+}
+
+function VBRQuantize() {
+    var qupvt;
+    var tak;
+
+    this.setModules = function (_qupvt, _tk) {
+        qupvt = _qupvt;
+        tak = _tk;
+    }
+    //TODO
+
+}
+
+
+
+/**
+ * ATH related stuff, if something new ATH related has to be added, please plug
+ * it here into the ATH.
+ */
+function ATH() {
+    /**
+     * Method for the auto adjustment.
+     */
+    this.useAdjust = 0;
+    /**
+     * factor for tuning the (sample power) point below which adaptive threshold
+     * of hearing adjustment occurs
+     */
+    this.aaSensitivityP = 0.;
+    /**
+     * Lowering based on peak volume, 1 = no lowering.
+     */
+    this.adjust = 0.;
+    /**
+     * Limit for dynamic ATH adjust.
+     */
+    this.adjustLimit = 0.;
+    /**
+     * Determined to lower x dB each second.
+     */
+    this.decay = 0.;
+    /**
+     * Lowest ATH value.
+     */
+    this.floor = 0.;
+    /**
+     * ATH for sfbs in long blocks.
+     */
+    this.l = new_float(Encoder.SBMAX_l);
+    /**
+     * ATH for sfbs in short blocks.
+     */
+    this.s = new_float(Encoder.SBMAX_s);
+    /**
+     * ATH for partitioned sfb21 in long blocks.
+     */
+    this.psfb21 = new_float(Encoder.PSFB21);
+    /**
+     * ATH for partitioned sfb12 in short blocks.
+     */
+    this.psfb12 = new_float(Encoder.PSFB12);
+    /**
+     * ATH for long block convolution bands.
+     */
+    this.cb_l = new_float(Encoder.CBANDS);
+    /**
+     * ATH for short block convolution bands.
+     */
+    this.cb_s = new_float(Encoder.CBANDS);
+    /**
+     * Equal loudness weights (based on ATH).
+     */
+    this.eql_w = new_float(Encoder.BLKSIZE / 2);
+}
+
+
+function LameGlobalFlags() {
+
+    this.class_id = 0;
+
+    /* input description */
+
+    /**
+     * number of samples. default=-1
+     */
+    this.num_samples = 0;
+    /**
+     * input number of channels. default=2
+     */
+    this.num_channels = 0;
+    /**
+     * input_samp_rate in Hz. default=44.1 kHz
+     */
+    this.in_samplerate = 0;
+    /**
+     * output_samp_rate. default: LAME picks best value at least not used for
+     * MP3 decoding: Remember 44.1 kHz MP3s and AC97
+     */
+    this.out_samplerate = 0;
+    /**
+     * scale input by this amount before encoding at least not used for MP3
+     * decoding
+     */
+    this.scale = 0.;
+    /**
+     * scale input of channel 0 (left) by this amount before encoding
+     */
+    this.scale_left = 0.;
+    /**
+     * scale input of channel 1 (right) by this amount before encoding
+     */
+    this.scale_right = 0.;
+
+    /* general control params */
+    /**
+     * collect data for a MP3 frame analyzer?
+     */
+    this.analysis = false;
+    /**
+     * add Xing VBR tag?
+     */
+    this.bWriteVbrTag = false;
+
+    /**
+     * use lame/mpglib to convert mp3 to wav
+     */
+    this.decode_only = false;
+    /**
+     * quality setting 0=best, 9=worst default=5
+     */
+    this.quality = 0;
+    /**
+     * see enum default = LAME picks best value
+     */
+    this.mode = MPEGMode.STEREO;
+    /**
+     * force M/S mode. requires mode=1
+     */
+    this.force_ms = false;
+    /**
+     * use free format? default=0
+     */
+    this.free_format = false;
+    /**
+     * find the RG value? default=0
+     */
+    this.findReplayGain = false;
+    /**
+     * decode on the fly? default=0
+     */
+    this.decode_on_the_fly = false;
+    /**
+     * 1 (default) writes ID3 tags, 0 not
+     */
+    this.write_id3tag_automatic = false;
+
+    /*
+     * set either brate>0 or compression_ratio>0, LAME will compute the value of
+     * the variable not set. Default is compression_ratio = 11.025
+     */
+    /**
+     * bitrate
+     */
+    this.brate = 0;
+    /**
+     * sizeof(wav file)/sizeof(mp3 file)
+     */
+    this.compression_ratio = 0.;
+
+    /* frame params */
+    /**
+     * mark as copyright. default=0
+     */
+    this.copyright = 0;
+    /**
+     * mark as original. default=1
+     */
+    this.original = 0;
+    /**
+     * the MP3 'private extension' bit. Meaningless
+     */
+    this.extension = 0;
+    /**
+     * Input PCM is emphased PCM (for instance from one of the rarely emphased
+     * CDs), it is STRONGLY not recommended to use this, because psycho does not
+     * take it into account, and last but not least many decoders don't care
+     * about these bits
+     */
+    this.emphasis = 0;
+    /**
+     * use 2 bytes per frame for a CRC checksum. default=0
+     */
+    this.error_protection = 0;
+    /**
+     * enforce ISO spec as much as possible
+     */
+    this.strict_ISO = false;
+
+    /**
+     * use bit reservoir?
+     */
+    this.disable_reservoir = false;
+
+    /* quantization/noise shaping */
+    this.quant_comp = 0;
+    this.quant_comp_short = 0;
+    this.experimentalY = false;
+    this.experimentalZ = 0;
+    this.exp_nspsytune = 0;
+
+    this.preset = 0;
+
+    /* VBR control */
+    this.VBR = null;
+    /**
+     * Range [0,...,1[
+     */
+    this.VBR_q_frac = 0.;
+    /**
+     * Range [0,...,9]
+     */
+    this.VBR_q = 0;
+    this.VBR_mean_bitrate_kbps = 0;
+    this.VBR_min_bitrate_kbps = 0;
+    this.VBR_max_bitrate_kbps = 0;
+    /**
+     * strictly enforce VBR_min_bitrate normaly, it will be violated for analog
+     * silence
+     */
+    this.VBR_hard_min = 0;
+
+    /* resampling and filtering */
+
+    /**
+     * freq in Hz. 0=lame choses. -1=no filter
+     */
+    this.lowpassfreq = 0;
+    /**
+     * freq in Hz. 0=lame choses. -1=no filter
+     */
+    this.highpassfreq = 0;
+    /**
+     * freq width of filter, in Hz (default=15%)
+     */
+    this.lowpasswidth = 0;
+    /**
+     * freq width of filter, in Hz (default=15%)
+     */
+    this.highpasswidth = 0;
+
+    /*
+     * psycho acoustics and other arguments which you should not change unless
+     * you know what you are doing
+     */
+
+    this.maskingadjust = 0.;
+    this.maskingadjust_short = 0.;
+    /**
+     * only use ATH
+     */
+    this.ATHonly = false;
+    /**
+     * only use ATH for short blocks
+     */
+    this.ATHshort = false;
+    /**
+     * disable ATH
+     */
+    this.noATH = false;
+    /**
+     * select ATH formula
+     */
+    this.ATHtype = 0;
+    /**
+     * change ATH formula 4 shape
+     */
+    this.ATHcurve = 0.;
+    /**
+     * lower ATH by this many db
+     */
+    this.ATHlower = 0.;
+    /**
+     * select ATH auto-adjust scheme
+     */
+    this.athaa_type = 0;
+    /**
+     * select ATH auto-adjust loudness calc
+     */
+    this.athaa_loudapprox = 0;
+    /**
+     * dB, tune active region of auto-level
+     */
+    this.athaa_sensitivity = 0.;
+    this.short_blocks = null;
+    /**
+     * use temporal masking effect
+     */
+    this.useTemporal = false;
+    this.interChRatio = 0.;
+    /**
+     * Naoki's adjustment of Mid/Side maskings
+     */
+    this.msfix = 0.;
+
+    /**
+     * 0 off, 1 on
+     */
+    this.tune = false;
+    /**
+     * used to pass values for debugging and stuff
+     */
+    this.tune_value_a = 0.;
+
+    /************************************************************************/
+    /* internal variables, do not set... */
+    /* provided because they may be of use to calling application */
+    /************************************************************************/
+
+    /**
+     * 0=MPEG-2/2.5 1=MPEG-1
+     */
+    this.version = 0;
+    this.encoder_delay = 0;
+    /**
+     * number of samples of padding appended to input
+     */
+    this.encoder_padding = 0;
+    this.framesize = 0;
+    /**
+     * number of frames encoded
+     */
+    this.frameNum = 0;
+    /**
+     * is this struct owned by calling program or lame?
+     */
+    this.lame_allocated_gfp = 0;
+    /**************************************************************************/
+    /* more internal variables are stored in this structure: */
+    /**************************************************************************/
+    this.internal_flags = null;
+}
+
+
+
+function CBRNewIterationLoop(_quantize)  {
+    var quantize = _quantize;
+    this.quantize = quantize;
+	this.iteration_loop = function(gfp, pe, ms_ener_ratio, ratio) {
+		var gfc = gfp.internal_flags;
+        var l3_xmin = new_float(L3Side.SFBMAX);
+		var xrpow = new_float(576);
+		var targ_bits = new_int(2);
+		var mean_bits = 0, max_bits;
+		var l3_side = gfc.l3_side;
+
+		var mb = new MeanBits(mean_bits);
+		this.quantize.rv.ResvFrameBegin(gfp, mb);
+		mean_bits = mb.bits;
+
+		/* quantize! */
+		for (var gr = 0; gr < gfc.mode_gr; gr++) {
+
+			/*
+			 * calculate needed bits
+			 */
+			max_bits = this.quantize.qupvt.on_pe(gfp, pe, targ_bits, mean_bits,
+					gr, gr);
+
+			if (gfc.mode_ext == Encoder.MPG_MD_MS_LR) {
+				this.quantize.ms_convert(gfc.l3_side, gr);
+				this.quantize.qupvt.reduce_side(targ_bits, ms_ener_ratio[gr],
+						mean_bits, max_bits);
+			}
+
+			for (var ch = 0; ch < gfc.channels_out; ch++) {
+				var adjust, masking_lower_db;
+				var cod_info = l3_side.tt[gr][ch];
+
+				if (cod_info.block_type != Encoder.SHORT_TYPE) {
+					// NORM, START or STOP type
+					adjust = 0;
+					masking_lower_db = gfc.PSY.mask_adjust - adjust;
+				} else {
+					adjust = 0;
+					masking_lower_db = gfc.PSY.mask_adjust_short - adjust;
+				}
+				gfc.masking_lower =  Math.pow(10.0,
+						masking_lower_db * 0.1);
+
+				/*
+				 * init_outer_loop sets up cod_info, scalefac and xrpow
+				 */
+				this.quantize.init_outer_loop(gfc, cod_info);
+				if (this.quantize.init_xrpow(gfc, cod_info, xrpow)) {
+					/*
+					 * xr contains energy we will have to encode calculate the
+					 * masking abilities find some good quantization in
+					 * outer_loop
+					 */
+					this.quantize.qupvt.calc_xmin(gfp, ratio[gr][ch], cod_info,
+							l3_xmin);
+					this.quantize.outer_loop(gfp, cod_info, l3_xmin, xrpow, ch,
+							targ_bits[ch]);
+				}
+
+				this.quantize.iteration_finish_one(gfc, gr, ch);
+			} /* for ch */
+		} /* for gr */
+
+		this.quantize.rv.ResvFrameEnd(gfc, mean_bits);
+	}
+}
+
+
+function ReplayGain() {
+	//fix 精简
+}
+
+//package mp3;
+
+/**
+ * Layer III side information.
+ *
+ * @author Ken
+ *
+ */
+
+
+
+function ScaleFac(arrL, arrS, arr21, arr12) {
+
+    this.l = new_int(1 + Encoder.SBMAX_l);
+    this.s = new_int(1 + Encoder.SBMAX_s);
+    this.psfb21 = new_int(1 + Encoder.PSFB21);
+    this.psfb12 = new_int(1 + Encoder.PSFB12);
+    var l = this.l;
+    var s = this.s;
+
+    if (arguments.length == 4) {
+        //public ScaleFac(final int[] arrL, final int[] arrS, final int[] arr21,
+        //    final int[] arr12) {
+        this.arrL = arguments[0];
+        this.arrS = arguments[1];
+        this.arr21 = arguments[2];
+        this.arr12 = arguments[3];
+
+        System.arraycopy(this.arrL, 0, l, 0, Math.min(this.arrL.length, this.l.length));
+        System.arraycopy(this.arrS, 0, s, 0, Math.min(this.arrS.length, this.s.length));
+        System.arraycopy(this.arr21, 0, this.psfb21, 0, Math.min(this.arr21.length, this.psfb21.length));
+        System.arraycopy(this.arr12, 0, this.psfb12, 0, Math.min(this.arr12.length, this.psfb12.length));
+    }
+}
+
+/*
+ *      quantize_pvt source file
+ *
+ *      Copyright (c) 1999-2002 Takehiro Tominaga
+ *      Copyright (c) 2000-2002 Robert Hegemann
+ *      Copyright (c) 2001 Naoki Shibata
+ *      Copyright (c) 2002-2005 Gabriel Bouvigne
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/* $Id: QuantizePVT.java,v 1.24 2011/05/24 20:48:06 kenchis Exp $ */
+
+
+QuantizePVT.Q_MAX = (256 + 1);
+QuantizePVT.Q_MAX2 = 116;
+QuantizePVT.LARGE_BITS = 100000;
+QuantizePVT.IXMAX_VAL = 8206;
+
+function QuantizePVT() {
+
+    var tak = null;
+    var rv = null;
+    var psy = null;
+
+    this.setModules = function (_tk, _rv, _psy) {
+        tak = _tk;
+        rv = _rv;
+        psy = _psy;
+    };
+
+    function POW20(x) {
+        return pow20[x + QuantizePVT.Q_MAX2];
+    }
+
+    this.IPOW20 = function (x) {
+        return ipow20[x];
+    }
+
+    /**
+     * smallest such that 1.0+DBL_EPSILON != 1.0
+     */
+    var DBL_EPSILON = 2.2204460492503131e-016;
+
+    /**
+     * ix always <= 8191+15. see count_bits()
+     */
+    var IXMAX_VAL = QuantizePVT.IXMAX_VAL;
+
+    var PRECALC_SIZE = (IXMAX_VAL + 2);
+
+    var Q_MAX = QuantizePVT.Q_MAX;
+
+
+    /**
+     * <CODE>
+     * minimum possible number of
+     * -cod_info.global_gain + ((scalefac[] + (cod_info.preflag ? pretab[sfb] : 0))
+     * << (cod_info.scalefac_scale + 1)) + cod_info.subblock_gain[cod_info.window[sfb]] * 8;
+     *
+     * for long block, 0+((15+3)<<2) = 18*4 = 72
+     * for short block, 0+(15<<2)+7*8 = 15*4+56 = 116
+     * </CODE>
+     */
+    var Q_MAX2 = QuantizePVT.Q_MAX2;
+
+    var LARGE_BITS = QuantizePVT.LARGE_BITS;
+
+
+    /**
+     * Assuming dynamic range=96dB, this value should be 92
+     */
+    var NSATHSCALE = 100;
+
+    /**
+     * The following table is used to implement the scalefactor partitioning for
+     * MPEG2 as described in section 2.4.3.2 of the IS. The indexing corresponds
+     * to the way the tables are presented in the IS:
+     *
+     * [table_number][row_in_table][column of nr_of_sfb]
+     */
+    this.nr_of_sfb_block = [
+        [[6, 5, 5, 5], [9, 9, 9, 9], [6, 9, 9, 9]],
+        [[6, 5, 7, 3], [9, 9, 12, 6], [6, 9, 12, 6]],
+        [[11, 10, 0, 0], [18, 18, 0, 0], [15, 18, 0, 0]],
+        [[7, 7, 7, 0], [12, 12, 12, 0], [6, 15, 12, 0]],
+        [[6, 6, 6, 3], [12, 9, 9, 6], [6, 12, 9, 6]],
+        [[8, 8, 5, 0], [15, 12, 9, 0], [6, 18, 9, 0]]];
+
+    /**
+     * Table B.6: layer3 preemphasis
+     */
+    var pretab = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1,
+        2, 2, 3, 3, 3, 2, 0];
+    this.pretab = pretab;
+
+    /**
+     * Here are MPEG1 Table B.8 and MPEG2 Table B.1 -- Layer III scalefactor
+     * bands. <BR>
+     * Index into this using a method such as:<BR>
+     * idx = fr_ps.header.sampling_frequency + (fr_ps.header.version * 3)
+     */
+    this.sfBandIndex = [
+        // Table B.2.b: 22.05 kHz
+        new ScaleFac([0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396, 464,
+                522, 576],
+            [0, 4, 8, 12, 18, 24, 32, 42, 56, 74, 100, 132, 174, 192]
+            , [0, 0, 0, 0, 0, 0, 0] //  sfb21 pseudo sub bands
+            , [0, 0, 0, 0, 0, 0, 0] //  sfb12 pseudo sub bands
+        ),
+        /* Table B.2.c: 24 kHz */ /* docs: 332. mpg123(broken): 330 */
+        new ScaleFac([0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 114, 136, 162, 194, 232, 278, 332, 394, 464,
+                540, 576],
+            [0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 136, 180, 192]
+            , [0, 0, 0, 0, 0, 0, 0] /*  sfb21 pseudo sub bands */
+            , [0, 0, 0, 0, 0, 0, 0] /*  sfb12 pseudo sub bands */
+        ),
+        /* Table B.2.a: 16 kHz */
+        new ScaleFac([0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396, 464,
+                522, 576],
+            [0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192]
+            , [0, 0, 0, 0, 0, 0, 0] /*  sfb21 pseudo sub bands */
+            , [0, 0, 0, 0, 0, 0, 0] /*  sfb12 pseudo sub bands */
+        ),
+        /* Table B.8.b: 44.1 kHz */
+        new ScaleFac([0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 52, 62, 74, 90, 110, 134, 162, 196, 238, 288, 342, 418,
+                576],
+            [0, 4, 8, 12, 16, 22, 30, 40, 52, 66, 84, 106, 136, 192]
+            , [0, 0, 0, 0, 0, 0, 0] /*  sfb21 pseudo sub bands */
+            , [0, 0, 0, 0, 0, 0, 0] /*  sfb12 pseudo sub bands */
+        ),
+        /* Table B.8.c: 48 kHz */
+        new ScaleFac([0, 4, 8, 12, 16, 20, 24, 30, 36, 42, 50, 60, 72, 88, 106, 128, 156, 190, 230, 276, 330, 384,
+                576],
+            [0, 4, 8, 12, 16, 22, 28, 38, 50, 64, 80, 100, 126, 192]
+            , [0, 0, 0, 0, 0, 0, 0] /*  sfb21 pseudo sub bands */
+            , [0, 0, 0, 0, 0, 0, 0] /*  sfb12 pseudo sub bands */
+        ),
+        /* Table B.8.a: 32 kHz */
+        new ScaleFac([0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 54, 66, 82, 102, 126, 156, 194, 240, 296, 364, 448, 550,
+                576],
+            [0, 4, 8, 12, 16, 22, 30, 42, 58, 78, 104, 138, 180, 192]
+            , [0, 0, 0, 0, 0, 0, 0] /*  sfb21 pseudo sub bands */
+            , [0, 0, 0, 0, 0, 0, 0] /*  sfb12 pseudo sub bands */
+        ),
+        /* MPEG-2.5 11.025 kHz */
+        new ScaleFac([0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396, 464,
+                522, 576],
+            [0 / 3, 12 / 3, 24 / 3, 36 / 3, 54 / 3, 78 / 3, 108 / 3, 144 / 3, 186 / 3, 240 / 3, 312 / 3,
+                402 / 3, 522 / 3, 576 / 3]
+            , [0, 0, 0, 0, 0, 0, 0] /*  sfb21 pseudo sub bands */
+            , [0, 0, 0, 0, 0, 0, 0] /*  sfb12 pseudo sub bands */
+        ),
+        /* MPEG-2.5 12 kHz */
+        new ScaleFac([0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396, 464,
+                522, 576],
+            [0 / 3, 12 / 3, 24 / 3, 36 / 3, 54 / 3, 78 / 3, 108 / 3, 144 / 3, 186 / 3, 240 / 3, 312 / 3,
+                402 / 3, 522 / 3, 576 / 3]
+            , [0, 0, 0, 0, 0, 0, 0] /*  sfb21 pseudo sub bands */
+            , [0, 0, 0, 0, 0, 0, 0] /*  sfb12 pseudo sub bands */
+        ),
+        /* MPEG-2.5 8 kHz */
+        new ScaleFac([0, 12, 24, 36, 48, 60, 72, 88, 108, 132, 160, 192, 232, 280, 336, 400, 476, 566, 568, 570,
+                572, 574, 576],
+            [0 / 3, 24 / 3, 48 / 3, 72 / 3, 108 / 3, 156 / 3, 216 / 3, 288 / 3, 372 / 3, 480 / 3, 486 / 3,
+                492 / 3, 498 / 3, 576 / 3]
+            , [0, 0, 0, 0, 0, 0, 0] /*  sfb21 pseudo sub bands */
+            , [0, 0, 0, 0, 0, 0, 0] /*  sfb12 pseudo sub bands */
+        )
+    ];
+
+    var pow20 = new_float(Q_MAX + Q_MAX2 + 1);
+    var ipow20 = new_float(Q_MAX);
+    var pow43 = new_float(PRECALC_SIZE);
+
+    var adj43 = new_float(PRECALC_SIZE);
+    this.adj43 = adj43;
+
+    /**
+     * <PRE>
+     * compute the ATH for each scalefactor band cd range: 0..96db
+     *
+     * Input: 3.3kHz signal 32767 amplitude (3.3kHz is where ATH is smallest =
+     * -5db) longblocks: sfb=12 en0/bw=-11db max_en0 = 1.3db shortblocks: sfb=5
+     * -9db 0db
+     *
+     * Input: 1 1 1 1 1 1 1 -1 -1 -1 -1 -1 -1 -1 (repeated) longblocks: amp=1
+     * sfb=12 en0/bw=-103 db max_en0 = -92db amp=32767 sfb=12 -12 db -1.4db
+     *
+     * Input: 1 1 1 1 1 1 1 -1 -1 -1 -1 -1 -1 -1 (repeated) shortblocks: amp=1
+     * sfb=5 en0/bw= -99 -86 amp=32767 sfb=5 -9 db 4db
+     *
+     *
+     * MAX energy of largest wave at 3.3kHz = 1db AVE energy of largest wave at
+     * 3.3kHz = -11db Let's take AVE: -11db = maximum signal in sfb=12. Dynamic
+     * range of CD: 96db. Therefor energy of smallest audible wave in sfb=12 =
+     * -11 - 96 = -107db = ATH at 3.3kHz.
+     *
+     * ATH formula for this wave: -5db. To adjust to LAME scaling, we need ATH =
+     * ATH_formula - 103 (db) ATH = ATH * 2.5e-10 (ener)
+     * </PRE>
+     */
+    function ATHmdct(gfp, f) {
+        var ath = psy.ATHformula(f, gfp);
+
+        ath -= NSATHSCALE;
+
+        /* modify the MDCT scaling for the ATH and convert to energy */
+        ath = Math.pow(10.0, ath / 10.0 + gfp.ATHlower);
+        return ath;
+    }
+
+    function compute_ath(gfp) {
+        var ATH_l = gfp.internal_flags.ATH.l;
+        var ATH_psfb21 = gfp.internal_flags.ATH.psfb21;
+        var ATH_s = gfp.internal_flags.ATH.s;
+        var ATH_psfb12 = gfp.internal_flags.ATH.psfb12;
+        var gfc = gfp.internal_flags;
+        var samp_freq = gfp.out_samplerate;
+
+        for (var sfb = 0; sfb < Encoder.SBMAX_l; sfb++) {
+            var start = gfc.scalefac_band.l[sfb];
+            var end = gfc.scalefac_band.l[sfb + 1];
+            ATH_l[sfb] = Float.MAX_VALUE;
+            for (var i = start; i < end; i++) {
+                var freq = i * samp_freq / (2 * 576);
+                var ATH_f = ATHmdct(gfp, freq);
+                /* freq in kHz */
+                ATH_l[sfb] = Math.min(ATH_l[sfb], ATH_f);
+            }
+        }
+
+        for (var sfb = 0; sfb < Encoder.PSFB21; sfb++) {
+            var start = gfc.scalefac_band.psfb21[sfb];
+            var end = gfc.scalefac_band.psfb21[sfb + 1];
+            ATH_psfb21[sfb] = Float.MAX_VALUE;
+            for (var i = start; i < end; i++) {
+                var freq = i * samp_freq / (2 * 576);
+                var ATH_f = ATHmdct(gfp, freq);
+                /* freq in kHz */
+                ATH_psfb21[sfb] = Math.min(ATH_psfb21[sfb], ATH_f);
+            }
+        }
+
+        for (var sfb = 0; sfb < Encoder.SBMAX_s; sfb++) {
+            var start = gfc.scalefac_band.s[sfb];
+            var end = gfc.scalefac_band.s[sfb + 1];
+            ATH_s[sfb] = Float.MAX_VALUE;
+            for (var i = start; i < end; i++) {
+                var freq = i * samp_freq / (2 * 192);
+                var ATH_f = ATHmdct(gfp, freq);
+                /* freq in kHz */
+                ATH_s[sfb] = Math.min(ATH_s[sfb], ATH_f);
+            }
+            ATH_s[sfb] *= (gfc.scalefac_band.s[sfb + 1] - gfc.scalefac_band.s[sfb]);
+        }
+
+        for (var sfb = 0; sfb < Encoder.PSFB12; sfb++) {
+            var start = gfc.scalefac_band.psfb12[sfb];
+            var end = gfc.scalefac_band.psfb12[sfb + 1];
+            ATH_psfb12[sfb] = Float.MAX_VALUE;
+            for (var i = start; i < end; i++) {
+                var freq = i * samp_freq / (2 * 192);
+                var ATH_f = ATHmdct(gfp, freq);
+                /* freq in kHz */
+                ATH_psfb12[sfb] = Math.min(ATH_psfb12[sfb], ATH_f);
+            }
+            /* not sure about the following */
+            ATH_psfb12[sfb] *= (gfc.scalefac_band.s[13] - gfc.scalefac_band.s[12]);
+        }
+
+        /*
+         * no-ATH mode: reduce ATH to -200 dB
+         */
+        if (gfp.noATH) {
+            for (var sfb = 0; sfb < Encoder.SBMAX_l; sfb++) {
+                ATH_l[sfb] = 1E-20;
+            }
+            for (var sfb = 0; sfb < Encoder.PSFB21; sfb++) {
+                ATH_psfb21[sfb] = 1E-20;
+            }
+            for (var sfb = 0; sfb < Encoder.SBMAX_s; sfb++) {
+                ATH_s[sfb] = 1E-20;
+            }
+            for (var sfb = 0; sfb < Encoder.PSFB12; sfb++) {
+                ATH_psfb12[sfb] = 1E-20;
+            }
+        }
+
+        /*
+         * work in progress, don't rely on it too much
+         */
+        gfc.ATH.floor = 10. * Math_log10(ATHmdct(gfp, -1.));
+    }
+
+    /**
+     * initialization for iteration_loop
+     */
+    this.iteration_init = function (gfp) {
+        var gfc = gfp.internal_flags;
+        var l3_side = gfc.l3_side;
+        var i;
+
+        if (gfc.iteration_init_init == 0) {
+            gfc.iteration_init_init = 1;
+
+            l3_side.main_data_begin = 0;
+            compute_ath(gfp);
+
+            pow43[0] = 0.0;
+            for (i = 1; i < PRECALC_SIZE; i++)
+                pow43[i] = Math.pow(i, 4.0 / 3.0);
+
+            for (i = 0; i < PRECALC_SIZE - 1; i++)
+                adj43[i] = ((i + 1) - Math.pow(
+                    0.5 * (pow43[i] + pow43[i + 1]), 0.75));
+            adj43[i] = 0.5;
+
+            for (i = 0; i < Q_MAX; i++)
+                ipow20[i] = Math.pow(2.0, (i - 210) * -0.1875);
+            for (i = 0; i <= Q_MAX + Q_MAX2; i++)
+                pow20[i] = Math.pow(2.0, (i - 210 - Q_MAX2) * 0.25);
+
+            tak.huffman_init(gfc);
+
+            {
+                var bass, alto, treble, sfb21;
+
+                i = (gfp.exp_nspsytune >> 2) & 63;
+                if (i >= 32)
+                    i -= 64;
+                bass = Math.pow(10, i / 4.0 / 10.0);
+
+                i = (gfp.exp_nspsytune >> 8) & 63;
+                if (i >= 32)
+                    i -= 64;
+                alto = Math.pow(10, i / 4.0 / 10.0);
+
+                i = (gfp.exp_nspsytune >> 14) & 63;
+                if (i >= 32)
+                    i -= 64;
+                treble = Math.pow(10, i / 4.0 / 10.0);
+
+                /*
+                 * to be compatible with Naoki's original code, the next 6 bits
+                 * define only the amount of changing treble for sfb21
+                 */
+                i = (gfp.exp_nspsytune >> 20) & 63;
+                if (i >= 32)
+                    i -= 64;
+                sfb21 = treble * Math.pow(10, i / 4.0 / 10.0);
+                for (i = 0; i < Encoder.SBMAX_l; i++) {
+                    var f;
+                    if (i <= 6)
+                        f = bass;
+                    else if (i <= 13)
+                        f = alto;
+                    else if (i <= 20)
+                        f = treble;
+                    else
+                        f = sfb21;
+
+                    gfc.nsPsy.longfact[i] = f;
+                }
+                for (i = 0; i < Encoder.SBMAX_s; i++) {
+                    var f;
+                    if (i <= 5)
+                        f = bass;
+                    else if (i <= 10)
+                        f = alto;
+                    else if (i <= 11)
+                        f = treble;
+                    else
+                        f = sfb21;
+
+                    gfc.nsPsy.shortfact[i] = f;
+                }
+            }
+        }
+    }
+
+    /**
+     * allocate bits among 2 channels based on PE<BR>
+     * mt 6/99<BR>
+     * bugfixes rh 8/01: often allocated more than the allowed 4095 bits
+     */
+    this.on_pe = function (gfp, pe,
+                           targ_bits, mean_bits, gr, cbr) {
+        var gfc = gfp.internal_flags;
+        var tbits = 0, bits;
+        var add_bits = new_int(2);
+        var ch;
+
+        /* allocate targ_bits for granule */
+        var mb = new MeanBits(tbits);
+        var extra_bits = rv.ResvMaxBits(gfp, mean_bits, mb, cbr);
+        tbits = mb.bits;
+        /* maximum allowed bits for this granule */
+        var max_bits = tbits + extra_bits;
+        if (max_bits > LameInternalFlags.MAX_BITS_PER_GRANULE) {
+            // hard limit per granule
+            max_bits = LameInternalFlags.MAX_BITS_PER_GRANULE;
+        }
+        for (bits = 0, ch = 0; ch < gfc.channels_out; ++ch) {
+            /******************************************************************
+             * allocate bits for each channel
+             ******************************************************************/
+            targ_bits[ch] = Math.min(LameInternalFlags.MAX_BITS_PER_CHANNEL,
+                tbits / gfc.channels_out);
+
+            add_bits[ch] = 0 | (targ_bits[ch] * pe[gr][ch] / 700.0 - targ_bits[ch]);
+
+            /* at most increase bits by 1.5*average */
+            if (add_bits[ch] > mean_bits * 3 / 4)
+                add_bits[ch] = mean_bits * 3 / 4;
+
+            if (add_bits[ch] < 0)
+                add_bits[ch] = 0;
+
+            if (add_bits[ch] + targ_bits[ch] > LameInternalFlags.MAX_BITS_PER_CHANNEL)
+                add_bits[ch] = Math.max(0,
+                    LameInternalFlags.MAX_BITS_PER_CHANNEL - targ_bits[ch]);
+
+            bits += add_bits[ch];
+        }
+        if (bits > extra_bits) {
+            for (ch = 0; ch < gfc.channels_out; ++ch) {
+                add_bits[ch] = extra_bits * add_bits[ch] / bits;
+            }
+        }
+
+        for (ch = 0; ch < gfc.channels_out; ++ch) {
+            targ_bits[ch] += add_bits[ch];
+            extra_bits -= add_bits[ch];
+        }
+
+        for (bits = 0, ch = 0; ch < gfc.channels_out; ++ch) {
+            bits += targ_bits[ch];
+        }
+        if (bits > LameInternalFlags.MAX_BITS_PER_GRANULE) {
+            var sum = 0;
+            for (ch = 0; ch < gfc.channels_out; ++ch) {
+                targ_bits[ch] *= LameInternalFlags.MAX_BITS_PER_GRANULE;
+                targ_bits[ch] /= bits;
+                sum += targ_bits[ch];
+            }
+        }
+
+        return max_bits;
+    }
+
+    this.reduce_side = function (targ_bits, ms_ener_ratio, mean_bits, max_bits) {
+
+        /*
+         * ms_ener_ratio = 0: allocate 66/33 mid/side fac=.33 ms_ener_ratio =.5:
+         * allocate 50/50 mid/side fac= 0
+         */
+        /* 75/25 split is fac=.5 */
+        var fac = .33 * (.5 - ms_ener_ratio) / .5;
+        if (fac < 0)
+            fac = 0;
+        if (fac > .5)
+            fac = .5;
+
+        /* number of bits to move from side channel to mid channel */
+        /* move_bits = fac*targ_bits[1]; */
+        var move_bits = 0 | (fac * .5 * (targ_bits[0] + targ_bits[1]));
+
+        if (move_bits > LameInternalFlags.MAX_BITS_PER_CHANNEL - targ_bits[0]) {
+            move_bits = LameInternalFlags.MAX_BITS_PER_CHANNEL - targ_bits[0];
+        }
+        if (move_bits < 0)
+            move_bits = 0;
+
+        if (targ_bits[1] >= 125) {
+            /* dont reduce side channel below 125 bits */
+            if (targ_bits[1] - move_bits > 125) {
+
+                /* if mid channel already has 2x more than average, dont bother */
+                /* mean_bits = bits per granule (for both channels) */
+                if (targ_bits[0] < mean_bits)
+                    targ_bits[0] += move_bits;
+                targ_bits[1] -= move_bits;
+            } else {
+                targ_bits[0] += targ_bits[1] - 125;
+                targ_bits[1] = 125;
+            }
+        }
+
+        move_bits = targ_bits[0] + targ_bits[1];
+        if (move_bits > max_bits) {
+            targ_bits[0] = (max_bits * targ_bits[0]) / move_bits;
+            targ_bits[1] = (max_bits * targ_bits[1]) / move_bits;
+        }
+    };
+
+    /**
+     *  Robert Hegemann 2001-04-27:
+     *  this adjusts the ATH, keeping the original noise floor
+     *  affects the higher frequencies more than the lower ones
+     */
+    this.athAdjust = function (a, x, athFloor) {
+        /*
+         * work in progress
+         */
+        var o = 90.30873362;
+        var p = 94.82444863;
+        var u = Util.FAST_LOG10_X(x, 10.0);
+        var v = a * a;
+        var w = 0.0;
+        u -= athFloor;
+        /* undo scaling */
+        if (v > 1E-20)
+            w = 1. + Util.FAST_LOG10_X(v, 10.0 / o);
+        if (w < 0)
+            w = 0.;
+        u *= w;
+        u += athFloor + o - p;
+        /* redo scaling */
+
+        return Math.pow(10., 0.1 * u);
+    };
+
+    /**
+     * Calculate the allowed distortion for each scalefactor band, as determined
+     * by the psychoacoustic model. xmin(sb) = ratio(sb) * en(sb) / bw(sb)
+     *
+     * returns number of sfb's with energy > ATH
+     */
+    this.calc_xmin = function (gfp, ratio, cod_info, pxmin) {
+        var pxminPos = 0;
+        var gfc = gfp.internal_flags;
+        var gsfb, j = 0, ath_over = 0;
+        var ATH = gfc.ATH;
+        var xr = cod_info.xr;
+        var enable_athaa_fix = (gfp.VBR == VbrMode.vbr_mtrh) ? 1 : 0;
+        var masking_lower = gfc.masking_lower;
+
+        if (gfp.VBR == VbrMode.vbr_mtrh || gfp.VBR == VbrMode.vbr_mt) {
+            /* was already done in PSY-Model */
+            masking_lower = 1.0;
+        }
+
+        for (gsfb = 0; gsfb < cod_info.psy_lmax; gsfb++) {
+            var en0, xmin;
+            var rh1, rh2;
+            var width, l;
+
+            if (gfp.VBR == VbrMode.vbr_rh || gfp.VBR == VbrMode.vbr_mtrh)
+                xmin = athAdjust(ATH.adjust, ATH.l[gsfb], ATH.floor);
+            else
+                xmin = ATH.adjust * ATH.l[gsfb];
+
+            width = cod_info.width[gsfb];
+            rh1 = xmin / width;
+            rh2 = DBL_EPSILON;
+            l = width >> 1;
+            en0 = 0.0;
+            do {
+                var xa, xb;
+                xa = xr[j] * xr[j];
+                en0 += xa;
+                rh2 += (xa < rh1) ? xa : rh1;
+                j++;
+                xb = xr[j] * xr[j];
+                en0 += xb;
+                rh2 += (xb < rh1) ? xb : rh1;
+                j++;
+            } while (--l > 0);
+            if (en0 > xmin)
+                ath_over++;
+
+            if (gsfb == Encoder.SBPSY_l) {
+                var x = xmin * gfc.nsPsy.longfact[gsfb];
+                if (rh2 < x) {
+                    rh2 = x;
+                }
+            }
+            if (enable_athaa_fix != 0) {
+                xmin = rh2;
+            }
+            if (!gfp.ATHonly) {
+                var e = ratio.en.l[gsfb];
+                if (e > 0.0) {
+                    var x;
+                    x = en0 * ratio.thm.l[gsfb] * masking_lower / e;
+                    if (enable_athaa_fix != 0)
+                        x *= gfc.nsPsy.longfact[gsfb];
+                    if (xmin < x)
+                        xmin = x;
+                }
+            }
+            if (enable_athaa_fix != 0)
+                pxmin[pxminPos++] = xmin;
+            else
+                pxmin[pxminPos++] = xmin * gfc.nsPsy.longfact[gsfb];
+        }
+        /* end of long block loop */
+
+        /* use this function to determine the highest non-zero coeff */
+        var max_nonzero = 575;
+        if (cod_info.block_type != Encoder.SHORT_TYPE) {
+            // NORM, START or STOP type, but not SHORT
+            var k = 576;
+            while (k-- != 0 && BitStream.EQ(xr[k], 0)) {
+                max_nonzero = k;
+            }
+        }
+        cod_info.max_nonzero_coeff = max_nonzero;
+
+        for (var sfb = cod_info.sfb_smin; gsfb < cod_info.psymax; sfb++, gsfb += 3) {
+            var width, b;
+            var tmpATH;
+            if (gfp.VBR == VbrMode.vbr_rh || gfp.VBR == VbrMode.vbr_mtrh)
+                tmpATH = athAdjust(ATH.adjust, ATH.s[sfb], ATH.floor);
+            else
+                tmpATH = ATH.adjust * ATH.s[sfb];
+
+            width = cod_info.width[gsfb];
+            for (b = 0; b < 3; b++) {
+                var en0 = 0.0, xmin;
+                var rh1, rh2;
+                var l = width >> 1;
+
+                rh1 = tmpATH / width;
+                rh2 = DBL_EPSILON;
+                do {
+                    var xa, xb;
+                    xa = xr[j] * xr[j];
+                    en0 += xa;
+                    rh2 += (xa < rh1) ? xa : rh1;
+                    j++;
+                    xb = xr[j] * xr[j];
+                    en0 += xb;
+                    rh2 += (xb < rh1) ? xb : rh1;
+                    j++;
+                } while (--l > 0);
+                if (en0 > tmpATH)
+                    ath_over++;
+                if (sfb == Encoder.SBPSY_s) {
+                    var x = tmpATH * gfc.nsPsy.shortfact[sfb];
+                    if (rh2 < x) {
+                        rh2 = x;
+                    }
+                }
+                if (enable_athaa_fix != 0)
+                    xmin = rh2;
+                else
+                    xmin = tmpATH;
+
+                if (!gfp.ATHonly && !gfp.ATHshort) {
+                    var e = ratio.en.s[sfb][b];
+                    if (e > 0.0) {
+                        var x;
+                        x = en0 * ratio.thm.s[sfb][b] * masking_lower / e;
+                        if (enable_athaa_fix != 0)
+                            x *= gfc.nsPsy.shortfact[sfb];
+                        if (xmin < x)
+                            xmin = x;
+                    }
+                }
+                if (enable_athaa_fix != 0)
+                    pxmin[pxminPos++] = xmin;
+                else
+                    pxmin[pxminPos++] = xmin * gfc.nsPsy.shortfact[sfb];
+            }
+            /* b */
+            if (gfp.useTemporal) {
+                if (pxmin[pxminPos - 3] > pxmin[pxminPos - 3 + 1])
+                    pxmin[pxminPos - 3 + 1] += (pxmin[pxminPos - 3] - pxmin[pxminPos - 3 + 1])
+                        * gfc.decay;
+                if (pxmin[pxminPos - 3 + 1] > pxmin[pxminPos - 3 + 2])
+                    pxmin[pxminPos - 3 + 2] += (pxmin[pxminPos - 3 + 1] - pxmin[pxminPos - 3 + 2])
+                        * gfc.decay;
+            }
+        }
+        /* end of short block sfb loop */
+
+        return ath_over;
+    };
+
+    function StartLine(j) {
+        this.s = j;
+    }
+
+    this.calc_noise_core = function (cod_info, startline, l, step) {
+        var noise = 0;
+        var j = startline.s;
+        var ix = cod_info.l3_enc;
+
+        if (j > cod_info.count1) {
+            while ((l--) != 0) {
+                var temp;
+                temp = cod_info.xr[j];
+                j++;
+                noise += temp * temp;
+                temp = cod_info.xr[j];
+                j++;
+                noise += temp * temp;
+            }
+        } else if (j > cod_info.big_values) {
+            var ix01 = new_float(2);
+            ix01[0] = 0;
+            ix01[1] = step;
+            while ((l--) != 0) {
+                var temp;
+                temp = Math.abs(cod_info.xr[j]) - ix01[ix[j]];
+                j++;
+                noise += temp * temp;
+                temp = Math.abs(cod_info.xr[j]) - ix01[ix[j]];
+                j++;
+                noise += temp * temp;
+            }
+        } else {
+            while ((l--) != 0) {
+                var temp;
+                temp = Math.abs(cod_info.xr[j]) - pow43[ix[j]] * step;
+                j++;
+                noise += temp * temp;
+                temp = Math.abs(cod_info.xr[j]) - pow43[ix[j]] * step;
+                j++;
+                noise += temp * temp;
+            }
+        }
+
+        startline.s = j;
+        return noise;
+    }
+
+    /**
+     * <PRE>
+     * -oo dB  =>  -1.00
+     * - 6 dB  =>  -0.97
+     * - 3 dB  =>  -0.80
+     * - 2 dB  =>  -0.64
+     * - 1 dB  =>  -0.38
+     *   0 dB  =>   0.00
+     * + 1 dB  =>  +0.49
+     * + 2 dB  =>  +1.06
+     * + 3 dB  =>  +1.68
+     * + 6 dB  =>  +3.69
+     * +10 dB  =>  +6.45
+     * </PRE>
+     */
+    this.calc_noise = function (cod_info, l3_xmin, distort, res, prev_noise) {
+        var distortPos = 0;
+        var l3_xminPos = 0;
+        var sfb, l, over = 0;
+        var over_noise_db = 0;
+        /* 0 dB relative to masking */
+        var tot_noise_db = 0;
+        /* -200 dB relative to masking */
+        var max_noise = -20.0;
+        var j = 0;
+        var scalefac = cod_info.scalefac;
+        var scalefacPos = 0;
+
+        res.over_SSD = 0;
+
+        for (sfb = 0; sfb < cod_info.psymax; sfb++) {
+            var s = cod_info.global_gain
+                - (((scalefac[scalefacPos++]) + (cod_info.preflag != 0 ? pretab[sfb]
+                    : 0)) << (cod_info.scalefac_scale + 1))
+                - cod_info.subblock_gain[cod_info.window[sfb]] * 8;
+            var noise = 0.0;
+
+            if (prev_noise != null && (prev_noise.step[sfb] == s)) {
+
+                /* use previously computed values */
+                noise = prev_noise.noise[sfb];
+                j += cod_info.width[sfb];
+                distort[distortPos++] = noise / l3_xmin[l3_xminPos++];
+
+                noise = prev_noise.noise_log[sfb];
+
+            } else {
+                var step = POW20(s);
+                l = cod_info.width[sfb] >> 1;
+
+                if ((j + cod_info.width[sfb]) > cod_info.max_nonzero_coeff) {
+                    var usefullsize;
+                    usefullsize = cod_info.max_nonzero_coeff - j + 1;
+
+                    if (usefullsize > 0)
+                        l = usefullsize >> 1;
+                    else
+                        l = 0;
+                }
+
+                var sl = new StartLine(j);
+                noise = this.calc_noise_core(cod_info, sl, l, step);
+                j = sl.s;
+
+                if (prev_noise != null) {
+                    /* save noise values */
+                    prev_noise.step[sfb] = s;
+                    prev_noise.noise[sfb] = noise;
+                }
+
+                noise = distort[distortPos++] = noise / l3_xmin[l3_xminPos++];
+
+                /* multiplying here is adding in dB, but can overflow */
+                noise = Util.FAST_LOG10(Math.max(noise, 1E-20));
+
+                if (prev_noise != null) {
+                    /* save noise values */
+                    prev_noise.noise_log[sfb] = noise;
+                }
+            }
+
+            if (prev_noise != null) {
+                /* save noise values */
+                prev_noise.global_gain = cod_info.global_gain;
+            }
+
+            tot_noise_db += noise;
+
+            if (noise > 0.0) {
+                var tmp;
+
+                tmp = Math.max(0 | (noise * 10 + .5), 1);
+                res.over_SSD += tmp * tmp;
+
+                over++;
+                /* multiplying here is adding in dB -but can overflow */
+                /* over_noise *= noise; */
+                over_noise_db += noise;
+            }
+            max_noise = Math.max(max_noise, noise);
+
+        }
+
+        res.over_count = over;
+        res.tot_noise = tot_noise_db;
+        res.over_noise = over_noise_db;
+        res.max_noise = max_noise;
+
+        return over;
+    }
+
+    /**
+     * updates plotting data
+     *
+     * Mark Taylor 2000-??-??
+     *
+     * Robert Hegemann: moved noise/distortion calc into it
+     */
+    this.set_pinfo = function (gfp, cod_info, ratio, gr, ch) {
+        var gfc = gfp.internal_flags;
+        var sfb, sfb2;
+        var l;
+        var en0, en1;
+        var ifqstep = (cod_info.scalefac_scale == 0) ? .5 : 1.0;
+        var scalefac = cod_info.scalefac;
+
+        var l3_xmin = new_float(L3Side.SFBMAX);
+        var xfsf = new_float(L3Side.SFBMAX);
+        var noise = new CalcNoiseResult();
+
+        calc_xmin(gfp, ratio, cod_info, l3_xmin);
+        calc_noise(cod_info, l3_xmin, xfsf, noise, null);
+
+        var j = 0;
+        sfb2 = cod_info.sfb_lmax;
+        if (cod_info.block_type != Encoder.SHORT_TYPE
+            && 0 == cod_info.mixed_block_flag)
+            sfb2 = 22;
+        for (sfb = 0; sfb < sfb2; sfb++) {
+            var start = gfc.scalefac_band.l[sfb];
+            var end = gfc.scalefac_band.l[sfb + 1];
+            var bw = end - start;
+            for (en0 = 0.0; j < end; j++)
+                en0 += cod_info.xr[j] * cod_info.xr[j];
+            en0 /= bw;
+            /* convert to MDCT units */
+            /* scaling so it shows up on FFT plot */
+            en1 = 1e15;
+            gfc.pinfo.en[gr][ch][sfb] = en1 * en0;
+            gfc.pinfo.xfsf[gr][ch][sfb] = en1 * l3_xmin[sfb] * xfsf[sfb] / bw;
+
+            if (ratio.en.l[sfb] > 0 && !gfp.ATHonly)
+                en0 = en0 / ratio.en.l[sfb];
+            else
+                en0 = 0.0;
+
+            gfc.pinfo.thr[gr][ch][sfb] = en1
+                * Math.max(en0 * ratio.thm.l[sfb], gfc.ATH.l[sfb]);
+
+            /* there is no scalefactor bands >= SBPSY_l */
+            gfc.pinfo.LAMEsfb[gr][ch][sfb] = 0;
+            if (cod_info.preflag != 0 && sfb >= 11)
+                gfc.pinfo.LAMEsfb[gr][ch][sfb] = -ifqstep * pretab[sfb];
+
+            if (sfb < Encoder.SBPSY_l) {
+                /* scfsi should be decoded by caller side */
+                gfc.pinfo.LAMEsfb[gr][ch][sfb] -= ifqstep * scalefac[sfb];
+            }
+        }
+        /* for sfb */
+
+        if (cod_info.block_type == Encoder.SHORT_TYPE) {
+            sfb2 = sfb;
+            for (sfb = cod_info.sfb_smin; sfb < Encoder.SBMAX_s; sfb++) {
+                var start = gfc.scalefac_band.s[sfb];
+                var end = gfc.scalefac_band.s[sfb + 1];
+                var bw = end - start;
+                for (var i = 0; i < 3; i++) {
+                    for (en0 = 0.0, l = start; l < end; l++) {
+                        en0 += cod_info.xr[j] * cod_info.xr[j];
+                        j++;
+                    }
+                    en0 = Math.max(en0 / bw, 1e-20);
+                    /* convert to MDCT units */
+                    /* scaling so it shows up on FFT plot */
+                    en1 = 1e15;
+
+                    gfc.pinfo.en_s[gr][ch][3 * sfb + i] = en1 * en0;
+                    gfc.pinfo.xfsf_s[gr][ch][3 * sfb + i] = en1 * l3_xmin[sfb2]
+                        * xfsf[sfb2] / bw;
+                    if (ratio.en.s[sfb][i] > 0)
+                        en0 = en0 / ratio.en.s[sfb][i];
+                    else
+                        en0 = 0.0;
+                    if (gfp.ATHonly || gfp.ATHshort)
+                        en0 = 0;
+
+                    gfc.pinfo.thr_s[gr][ch][3 * sfb + i] = en1
+                        * Math.max(en0 * ratio.thm.s[sfb][i],
+                            gfc.ATH.s[sfb]);
+
+                    /* there is no scalefactor bands >= SBPSY_s */
+                    gfc.pinfo.LAMEsfb_s[gr][ch][3 * sfb + i] = -2.0
+                        * cod_info.subblock_gain[i];
+                    if (sfb < Encoder.SBPSY_s) {
+                        gfc.pinfo.LAMEsfb_s[gr][ch][3 * sfb + i] -= ifqstep
+                            * scalefac[sfb2];
+                    }
+                    sfb2++;
+                }
+            }
+        }
+        /* block type short */
+        gfc.pinfo.LAMEqss[gr][ch] = cod_info.global_gain;
+        gfc.pinfo.LAMEmainbits[gr][ch] = cod_info.part2_3_length
+            + cod_info.part2_length;
+        gfc.pinfo.LAMEsfbits[gr][ch] = cod_info.part2_length;
+
+        gfc.pinfo.over[gr][ch] = noise.over_count;
+        gfc.pinfo.max_noise[gr][ch] = noise.max_noise * 10.0;
+        gfc.pinfo.over_noise[gr][ch] = noise.over_noise * 10.0;
+        gfc.pinfo.tot_noise[gr][ch] = noise.tot_noise * 10.0;
+        gfc.pinfo.over_SSD[gr][ch] = noise.over_SSD;
+    }
+
+    /**
+     * updates plotting data for a whole frame
+     *
+     * Robert Hegemann 2000-10-21
+     */
+    function set_frame_pinfo(gfp, ratio) {
+        var gfc = gfp.internal_flags;
+
+        gfc.masking_lower = 1.0;
+
+        /*
+         * for every granule and channel patch l3_enc and set info
+         */
+        for (var gr = 0; gr < gfc.mode_gr; gr++) {
+            for (var ch = 0; ch < gfc.channels_out; ch++) {
+                var cod_info = gfc.l3_side.tt[gr][ch];
+                var scalefac_sav = new_int(L3Side.SFBMAX);
+                System.arraycopy(cod_info.scalefac, 0, scalefac_sav, 0,
+                    scalefac_sav.length);
+
+                /*
+                 * reconstruct the scalefactors in case SCFSI was used
+                 */
+                if (gr == 1) {
+                    var sfb;
+                    for (sfb = 0; sfb < cod_info.sfb_lmax; sfb++) {
+                        if (cod_info.scalefac[sfb] < 0) /* scfsi */
+                            cod_info.scalefac[sfb] = gfc.l3_side.tt[0][ch].scalefac[sfb];
+                    }
+                }
+
+                set_pinfo(gfp, cod_info, ratio[gr][ch], gr, ch);
+                System.arraycopy(scalefac_sav, 0, cod_info.scalefac, 0,
+                    scalefac_sav.length);
+            }
+            /* for ch */
+        }
+        /* for gr */
+    }
+
+}
+
+
+function CalcNoiseData() {
+    this.global_gain = 0;
+    this.sfb_count1 = 0;
+    this.step = new_int(39);
+    this.noise = new_float(39);
+    this.noise_log = new_float(39);
+}
+
+//package mp3;
+
+
+function GrInfo() {
+    //float xr[] = new float[576];
+    this.xr = new_float(576);
+    //int l3_enc[] = new int[576];
+    this.l3_enc = new_int(576);
+    //int scalefac[] = new int[L3Side.SFBMAX];
+    this.scalefac = new_int(L3Side.SFBMAX);
+    this.xrpow_max = 0.;
+
+    this.part2_3_length = 0;
+    this.big_values = 0;
+    this.count1 = 0;
+    this.global_gain = 0;
+    this.scalefac_compress = 0;
+    this.block_type = 0;
+    this.mixed_block_flag = 0;
+    this.table_select = new_int(3);
+    this.subblock_gain = new_int(3 + 1);
+    this.region0_count = 0;
+    this.region1_count = 0;
+    this.preflag = 0;
+    this.scalefac_scale = 0;
+    this.count1table_select = 0;
+
+    this.part2_length = 0;
+    this.sfb_lmax = 0;
+    this.sfb_smin = 0;
+    this.psy_lmax = 0;
+    this.sfbmax = 0;
+    this.psymax = 0;
+    this.sfbdivide = 0;
+    this.width = new_int(L3Side.SFBMAX);
+    this.window = new_int(L3Side.SFBMAX);
+    this.count1bits = 0;
+    /**
+     * added for LSF
+     */
+    this.sfb_partition_table = null;
+    this.slen = new_int(4);
+
+    this.max_nonzero_coeff = 0;
+
+    var self = this;
+    function clone_int(array) {
+        return new Int32Array(array);
+    }
+    function clone_float(array) {
+        return new Float32Array(array);
+    }
+    this.assign = function (other) {
+        self.xr = clone_float(other.xr); //.slice(0); //clone();
+        self.l3_enc = clone_int(other.l3_enc); //.slice(0); //clone();
+        self.scalefac = clone_int(other.scalefac);//.slice(0); //clone();
+        self.xrpow_max = other.xrpow_max;
+
+        self.part2_3_length = other.part2_3_length;
+        self.big_values = other.big_values;
+        self.count1 = other.count1;
+        self.global_gain = other.global_gain;
+        self.scalefac_compress = other.scalefac_compress;
+        self.block_type = other.block_type;
+        self.mixed_block_flag = other.mixed_block_flag;
+        self.table_select = clone_int(other.table_select);//.slice(0); //clone();
+        self.subblock_gain = clone_int(other.subblock_gain); //.slice(0); //.clone();
+        self.region0_count = other.region0_count;
+        self.region1_count = other.region1_count;
+        self.preflag = other.preflag;
+        self.scalefac_scale = other.scalefac_scale;
+        self.count1table_select = other.count1table_select;
+
+        self.part2_length = other.part2_length;
+        self.sfb_lmax = other.sfb_lmax;
+        self.sfb_smin = other.sfb_smin;
+        self.psy_lmax = other.psy_lmax;
+        self.sfbmax = other.sfbmax;
+        self.psymax = other.psymax;
+        self.sfbdivide = other.sfbdivide;
+        self.width = clone_int(other.width); //.slice(0); //.clone();
+        self.window = clone_int(other.window); //.slice(0); //.clone();
+        self.count1bits = other.count1bits;
+
+        self.sfb_partition_table = other.sfb_partition_table.slice(0); //.clone();
+        self.slen = clone_int(other.slen); //.slice(0); //.clone();
+        self.max_nonzero_coeff = other.max_nonzero_coeff;
+    }
+}
+
+
+var L3Side = {};
+
+
+	/**
+	 * max scalefactor band, max(SBMAX_l, SBMAX_s*3, (SBMAX_s-3)*3+8)
+	 */
+L3Side.SFBMAX = (Encoder.SBMAX_s * 3);
+
+/*
+ * MP3 quantization
+ *
+ *      Copyright (c) 1999-2000 Mark Taylor
+ *      Copyright (c) 1999-2003 Takehiro Tominaga
+ *      Copyright (c) 2000-2007 Robert Hegemann
+ *      Copyright (c) 2001-2005 Gabriel Bouvigne
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.     See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/* $Id: Quantize.java,v 1.24 2011/05/24 20:48:06 kenchis Exp $ */
+
+//package mp3;
+
+//import java.util.Arrays;
+
+
+function Quantize() {
+    var bs;
+    this.rv = null;
+    var rv;
+    this.qupvt = null;
+    var qupvt;
+
+    var vbr = new VBRQuantize();
+    var tk;
+
+    this.setModules = function (_bs, _rv, _qupvt, _tk) {
+        bs = _bs;
+        rv = _rv;
+        this.rv = _rv;
+        qupvt = _qupvt;
+        this.qupvt = _qupvt;
+        tk = _tk;
+        vbr.setModules(qupvt, tk);
+    }
+
+    /**
+     * convert from L/R <. Mid/Side
+     */
+    this.ms_convert = function (l3_side, gr) {
+        for (var i = 0; i < 576; ++i) {
+            var l = l3_side.tt[gr][0].xr[i];
+            var r = l3_side.tt[gr][1].xr[i];
+            l3_side.tt[gr][0].xr[i] = (l + r) * (Util.SQRT2 * 0.5);
+            l3_side.tt[gr][1].xr[i] = (l - r) * (Util.SQRT2 * 0.5);
+        }
+    };
+
+    /**
+     * mt 6/99
+     *
+     * initializes cod_info, scalefac and xrpow
+     *
+     * returns 0 if all energies in xr are zero, else 1
+     */
+    function init_xrpow_core(cod_info, xrpow, upper, sum) {
+        sum = 0;
+        for (var i = 0; i <= upper; ++i) {
+            var tmp = Math.abs(cod_info.xr[i]);
+            sum += tmp;
+            xrpow[i] = Math.sqrt(tmp * Math.sqrt(tmp));
+
+            if (xrpow[i] > cod_info.xrpow_max)
+                cod_info.xrpow_max = xrpow[i];
+        }
+        return sum;
+    }
+
+    this.init_xrpow = function (gfc, cod_info, xrpow) {
+        var sum = 0;
+        var upper = 0 | cod_info.max_nonzero_coeff;
+
+        cod_info.xrpow_max = 0;
+
+        /*
+         * check if there is some energy we have to quantize and calculate xrpow
+         * matching our fresh scalefactors
+         */
+
+        Arrays.fill(xrpow, upper, 576, 0);
+
+        sum = init_xrpow_core(cod_info, xrpow, upper, sum);
+
+        /*
+         * return 1 if we have something to quantize, else 0
+         */
+        if (sum > 1E-20) {
+            var j = 0;
+            if ((gfc.substep_shaping & 2) != 0)
+                j = 1;
+
+            for (var i = 0; i < cod_info.psymax; i++)
+                gfc.pseudohalf[i] = j;
+
+            return true;
+        }
+
+        Arrays.fill(cod_info.l3_enc, 0, 576, 0);
+        return false;
+    }
+
+    /**
+     * Gabriel Bouvigne feb/apr 2003<BR>
+     * Analog silence detection in partitionned sfb21 or sfb12 for short blocks
+     *
+     * From top to bottom of sfb, changes to 0 coeffs which are below ath. It
+     * stops on the first coeff higher than ath.
+     */
+    function psfb21_analogsilence(gfc, cod_info) {
+        var ath = gfc.ATH;
+        var xr = cod_info.xr;
+
+        if (cod_info.block_type != Encoder.SHORT_TYPE) {
+            /* NORM, START or STOP type, but not SHORT blocks */
+            var stop = false;
+            for (var gsfb = Encoder.PSFB21 - 1; gsfb >= 0 && !stop; gsfb--) {
+                var start = gfc.scalefac_band.psfb21[gsfb];
+                var end = gfc.scalefac_band.psfb21[gsfb + 1];
+                var ath21 = qupvt.athAdjust(ath.adjust, ath.psfb21[gsfb],
+                    ath.floor);
+
+                if (gfc.nsPsy.longfact[21] > 1e-12)
+                    ath21 *= gfc.nsPsy.longfact[21];
+
+                for (var j = end - 1; j >= start; j--) {
+                    if (Math.abs(xr[j]) < ath21)
+                        xr[j] = 0;
+                    else {
+                        stop = true;
+                        break;
+                    }
+                }
+            }
+        } else {
+            /* note: short blocks coeffs are reordered */
+            for (var block = 0; block < 3; block++) {
+                var stop = false;
+                for (var gsfb = Encoder.PSFB12 - 1; gsfb >= 0 && !stop; gsfb--) {
+                    var start = gfc.scalefac_band.s[12]
+                        * 3
+                        + (gfc.scalefac_band.s[13] - gfc.scalefac_band.s[12])
+                        * block
+                        + (gfc.scalefac_band.psfb12[gsfb] - gfc.scalefac_band.psfb12[0]);
+                    var end = start
+                        + (gfc.scalefac_band.psfb12[gsfb + 1] - gfc.scalefac_band.psfb12[gsfb]);
+                    var ath12 = qupvt.athAdjust(ath.adjust, ath.psfb12[gsfb],
+                        ath.floor);
+
+                    if (gfc.nsPsy.shortfact[12] > 1e-12)
+                        ath12 *= gfc.nsPsy.shortfact[12];
+
+                    for (var j = end - 1; j >= start; j--) {
+                        if (Math.abs(xr[j]) < ath12)
+                            xr[j] = 0;
+                        else {
+                            stop = true;
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+
+    }
+
+    this.init_outer_loop = function (gfc, cod_info) {
+        /*
+         * initialize fresh cod_info
+         */
+        cod_info.part2_3_length = 0;
+        cod_info.big_values = 0;
+        cod_info.count1 = 0;
+        cod_info.global_gain = 210;
+        cod_info.scalefac_compress = 0;
+        /* mixed_block_flag, block_type was set in psymodel.c */
+        cod_info.table_select[0] = 0;
+        cod_info.table_select[1] = 0;
+        cod_info.table_select[2] = 0;
+        cod_info.subblock_gain[0] = 0;
+        cod_info.subblock_gain[1] = 0;
+        cod_info.subblock_gain[2] = 0;
+        cod_info.subblock_gain[3] = 0;
+        /* this one is always 0 */
+        cod_info.region0_count = 0;
+        cod_info.region1_count = 0;
+        cod_info.preflag = 0;
+        cod_info.scalefac_scale = 0;
+        cod_info.count1table_select = 0;
+        cod_info.part2_length = 0;
+        cod_info.sfb_lmax = Encoder.SBPSY_l;
+        cod_info.sfb_smin = Encoder.SBPSY_s;
+        cod_info.psy_lmax = gfc.sfb21_extra ? Encoder.SBMAX_l : Encoder.SBPSY_l;
+        cod_info.psymax = cod_info.psy_lmax;
+        cod_info.sfbmax = cod_info.sfb_lmax;
+        cod_info.sfbdivide = 11;
+        for (var sfb = 0; sfb < Encoder.SBMAX_l; sfb++) {
+            cod_info.width[sfb] = gfc.scalefac_band.l[sfb + 1]
+                - gfc.scalefac_band.l[sfb];
+            /* which is always 0. */
+            cod_info.window[sfb] = 3;
+        }
+        if (cod_info.block_type == Encoder.SHORT_TYPE) {
+            var ixwork = new_float(576);
+
+            cod_info.sfb_smin = 0;
+            cod_info.sfb_lmax = 0;
+            if (cod_info.mixed_block_flag != 0) {
+                /*
+                 * MPEG-1: sfbs 0-7 long block, 3-12 short blocks MPEG-2(.5):
+                 * sfbs 0-5 long block, 3-12 short blocks
+                 */
+                cod_info.sfb_smin = 3;
+                cod_info.sfb_lmax = gfc.mode_gr * 2 + 4;
+            }
+            cod_info.psymax = cod_info.sfb_lmax
+                + 3
+                * ((gfc.sfb21_extra ? Encoder.SBMAX_s : Encoder.SBPSY_s) - cod_info.sfb_smin);
+            cod_info.sfbmax = cod_info.sfb_lmax + 3
+                * (Encoder.SBPSY_s - cod_info.sfb_smin);
+            cod_info.sfbdivide = cod_info.sfbmax - 18;
+            cod_info.psy_lmax = cod_info.sfb_lmax;
+            /* re-order the short blocks, for more efficient encoding below */
+            /* By Takehiro TOMINAGA */
+            /*
+             * Within each scalefactor band, data is given for successive time
+             * windows, beginning with window 0 and ending with window 2. Within
+             * each window, the quantized values are then arranged in order of
+             * increasing frequency...
+             */
+            var ix = gfc.scalefac_band.l[cod_info.sfb_lmax];
+            System.arraycopy(cod_info.xr, 0, ixwork, 0, 576);
+            for (var sfb = cod_info.sfb_smin; sfb < Encoder.SBMAX_s; sfb++) {
+                var start = gfc.scalefac_band.s[sfb];
+                var end = gfc.scalefac_band.s[sfb + 1];
+                for (var window = 0; window < 3; window++) {
+                    for (var l = start; l < end; l++) {
+                        cod_info.xr[ix++] = ixwork[3 * l + window];
+                    }
+                }
+            }
+
+            var j = cod_info.sfb_lmax;
+            for (var sfb = cod_info.sfb_smin; sfb < Encoder.SBMAX_s; sfb++) {
+                cod_info.width[j] = cod_info.width[j + 1] = cod_info.width[j + 2] = gfc.scalefac_band.s[sfb + 1]
+                    - gfc.scalefac_band.s[sfb];
+                cod_info.window[j] = 0;
+                cod_info.window[j + 1] = 1;
+                cod_info.window[j + 2] = 2;
+                j += 3;
+            }
+        }
+
+        cod_info.count1bits = 0;
+        cod_info.sfb_partition_table = qupvt.nr_of_sfb_block[0][0];
+        cod_info.slen[0] = 0;
+        cod_info.slen[1] = 0;
+        cod_info.slen[2] = 0;
+        cod_info.slen[3] = 0;
+
+        cod_info.max_nonzero_coeff = 575;
+
+        /*
+         * fresh scalefactors are all zero
+         */
+        Arrays.fill(cod_info.scalefac, 0);
+
+        psfb21_analogsilence(gfc, cod_info);
+    };
+
+    function BinSearchDirection(ordinal) {
+        this.ordinal = ordinal;
+    }
+
+    BinSearchDirection.BINSEARCH_NONE = new BinSearchDirection(0);
+    BinSearchDirection.BINSEARCH_UP = new BinSearchDirection(1);
+    BinSearchDirection.BINSEARCH_DOWN = new BinSearchDirection(2);
+
+    /**
+     * author/date??
+     *
+     * binary step size search used by outer_loop to get a quantizer step size
+     * to start with
+     */
+    function bin_search_StepSize(gfc, cod_info, desired_rate, ch, xrpow) {
+        var nBits;
+        var CurrentStep = gfc.CurrentStep[ch];
+        var flagGoneOver = false;
+        var start = gfc.OldValue[ch];
+        var Direction = BinSearchDirection.BINSEARCH_NONE;
+        cod_info.global_gain = start;
+        desired_rate -= cod_info.part2_length;
+
+        for (; ;) {
+            var step;
+            nBits = tk.count_bits(gfc, xrpow, cod_info, null);
+
+            if (CurrentStep == 1 || nBits == desired_rate)
+                break;
+            /* nothing to adjust anymore */
+
+            if (nBits > desired_rate) {
+                /* increase Quantize_StepSize */
+                if (Direction == BinSearchDirection.BINSEARCH_DOWN)
+                    flagGoneOver = true;
+
+                if (flagGoneOver)
+                    CurrentStep /= 2;
+                Direction = BinSearchDirection.BINSEARCH_UP;
+                step = CurrentStep;
+            } else {
+                /* decrease Quantize_StepSize */
+                if (Direction == BinSearchDirection.BINSEARCH_UP)
+                    flagGoneOver = true;
+
+                if (flagGoneOver)
+                    CurrentStep /= 2;
+                Direction = BinSearchDirection.BINSEARCH_DOWN;
+                step = -CurrentStep;
+            }
+            cod_info.global_gain += step;
+            if (cod_info.global_gain < 0) {
+                cod_info.global_gain = 0;
+                flagGoneOver = true;
+            }
+            if (cod_info.global_gain > 255) {
+                cod_info.global_gain = 255;
+                flagGoneOver = true;
+            }
+        }
+
+
+        while (nBits > desired_rate && cod_info.global_gain < 255) {
+            cod_info.global_gain++;
+            nBits = tk.count_bits(gfc, xrpow, cod_info, null);
+        }
+        gfc.CurrentStep[ch] = (start - cod_info.global_gain >= 4) ? 4 : 2;
+        gfc.OldValue[ch] = cod_info.global_gain;
+        cod_info.part2_3_length = nBits;
+        return nBits;
+    }
+
+    this.trancate_smallspectrums = function (gfc, gi, l3_xmin, work) {
+        var distort = new_float(L3Side.SFBMAX);
+
+        if ((0 == (gfc.substep_shaping & 4) && gi.block_type == Encoder.SHORT_TYPE)
+            || (gfc.substep_shaping & 0x80) != 0)
+            return;
+        qupvt.calc_noise(gi, l3_xmin, distort, new CalcNoiseResult(), null);
+        for (var j = 0; j < 576; j++) {
+            var xr = 0.0;
+            if (gi.l3_enc[j] != 0)
+                xr = Math.abs(gi.xr[j]);
+            work[j] = xr;
+        }
+
+        var j = 0;
+        var sfb = 8;
+        if (gi.block_type == Encoder.SHORT_TYPE)
+            sfb = 6;
+        do {
+            var allowedNoise, trancateThreshold;
+            var nsame, start;
+
+            var width = gi.width[sfb];
+            j += width;
+            if (distort[sfb] >= 1.0)
+                continue;
+
+            Arrays.sort(work, j - width, width);
+            if (BitStream.EQ(work[j - 1], 0.0))
+                continue;
+            /* all zero sfb */
+
+            allowedNoise = (1.0 - distort[sfb]) * l3_xmin[sfb];
+            trancateThreshold = 0.0;
+            start = 0;
+            do {
+                var noise;
+                for (nsame = 1; start + nsame < width; nsame++)
+                    if (BitStream.NEQ(work[start + j - width], work[start + j
+                        + nsame - width]))
+                        break;
+
+                noise = work[start + j - width] * work[start + j - width]
+                    * nsame;
+                if (allowedNoise < noise) {
+                    if (start != 0)
+                        trancateThreshold = work[start + j - width - 1];
+                    break;
+                }
+                allowedNoise -= noise;
+                start += nsame;
+            } while (start < width);
+            if (BitStream.EQ(trancateThreshold, 0.0))
+                continue;
+
+            do {
+                if (Math.abs(gi.xr[j - width]) <= trancateThreshold)
+                    gi.l3_enc[j - width] = 0;
+            } while (--width > 0);
+        } while (++sfb < gi.psymax);
+
+        gi.part2_3_length = tk.noquant_count_bits(gfc, gi, null);
+    };
+
+    /**
+     * author/date??
+     *
+     * Function: Returns zero if there is a scalefac which has not been
+     * amplified. Otherwise it returns one.
+     */
+    function loop_break(cod_info) {
+        for (var sfb = 0; sfb < cod_info.sfbmax; sfb++)
+            if (cod_info.scalefac[sfb]
+                + cod_info.subblock_gain[cod_info.window[sfb]] == 0)
+                return false;
+
+        return true;
+    }
+
+    /* mt 5/99: Function: Improved calc_noise for a single channel */
+
+    function penalties(noise) {
+        return Util.FAST_LOG10((0.368 + 0.632 * noise * noise * noise));
+    }
+
+    /**
+     * author/date??
+     *
+     * several different codes to decide which quantization is better
+     */
+    function get_klemm_noise(distort, gi) {
+        var klemm_noise = 1E-37;
+        for (var sfb = 0; sfb < gi.psymax; sfb++)
+            klemm_noise += penalties(distort[sfb]);
+
+        return Math.max(1e-20, klemm_noise);
+    }
+
+    function quant_compare(quant_comp, best, calc, gi, distort) {
+        /**
+         * noise is given in decibels (dB) relative to masking thesholds.<BR>
+         *
+         * over_noise: ??? (the previous comment is fully wrong)<BR>
+         * tot_noise: ??? (the previous comment is fully wrong)<BR>
+         * max_noise: max quantization noise
+         */
+        var better;
+
+        switch (quant_comp) {
+            default:
+            case 9:
+            {
+                if (best.over_count > 0) {
+                    /* there are distorted sfb */
+                    better = calc.over_SSD <= best.over_SSD;
+                    if (calc.over_SSD == best.over_SSD)
+                        better = calc.bits < best.bits;
+                } else {
+                    /* no distorted sfb */
+                    better = ((calc.max_noise < 0) && ((calc.max_noise * 10 + calc.bits) <= (best.max_noise * 10 + best.bits)));
+                }
+                break;
+            }
+
+            case 0:
+                better = calc.over_count < best.over_count
+                    || (calc.over_count == best.over_count && calc.over_noise < best.over_noise)
+                    || (calc.over_count == best.over_count
+                    && BitStream.EQ(calc.over_noise, best.over_noise) && calc.tot_noise < best.tot_noise);
+                break;
+
+            case 8:
+                calc.max_noise = get_klemm_noise(distort, gi);
+            //$FALL-THROUGH$
+            case 1:
+                better = calc.max_noise < best.max_noise;
+                break;
+            case 2:
+                better = calc.tot_noise < best.tot_noise;
+                break;
+            case 3:
+                better = (calc.tot_noise < best.tot_noise)
+                    && (calc.max_noise < best.max_noise);
+                break;
+            case 4:
+                better = (calc.max_noise <= 0.0 && best.max_noise > 0.2)
+                    || (calc.max_noise <= 0.0 && best.max_noise < 0.0
+                    && best.max_noise > calc.max_noise - 0.2 && calc.tot_noise < best.tot_noise)
+                    || (calc.max_noise <= 0.0 && best.max_noise > 0.0
+                    && best.max_noise > calc.max_noise - 0.2 && calc.tot_noise < best.tot_noise
+                    + best.over_noise)
+                    || (calc.max_noise > 0.0 && best.max_noise > -0.05
+                    && best.max_noise > calc.max_noise - 0.1 && calc.tot_noise
+                    + calc.over_noise < best.tot_noise
+                    + best.over_noise)
+                    || (calc.max_noise > 0.0 && best.max_noise > -0.1
+                    && best.max_noise > calc.max_noise - 0.15 && calc.tot_noise
+                    + calc.over_noise + calc.over_noise < best.tot_noise
+                    + best.over_noise + best.over_noise);
+                break;
+            case 5:
+                better = calc.over_noise < best.over_noise
+                    || (BitStream.EQ(calc.over_noise, best.over_noise) && calc.tot_noise < best.tot_noise);
+                break;
+            case 6:
+                better = calc.over_noise < best.over_noise
+                    || (BitStream.EQ(calc.over_noise, best.over_noise) && (calc.max_noise < best.max_noise || (BitStream
+                        .EQ(calc.max_noise, best.max_noise) && calc.tot_noise <= best.tot_noise)));
+                break;
+            case 7:
+                better = calc.over_count < best.over_count
+                    || calc.over_noise < best.over_noise;
+                break;
+        }
+
+        if (best.over_count == 0) {
+            /*
+             * If no distorted bands, only use this quantization if it is
+             * better, and if it uses less bits. Unfortunately, part2_3_length
+             * is sometimes a poor estimator of the final size at low bitrates.
+             */
+            better = better && calc.bits < best.bits;
+        }
+
+        return better;
+    }
+
+    /**
+     * author/date??
+     *
+     * <PRE>
+     *  Amplify the scalefactor bands that violate the masking threshold.
+     *  See ISO 11172-3 Section C.1.5.4.3.5
+     *
+     *  distort[] = noise/masking
+     *  distort[] > 1   ==> noise is not masked
+     *  distort[] < 1   ==> noise is masked
+     *  max_dist = maximum value of distort[]
+     *
+     *  Three algorithms:
+     *  noise_shaping_amp
+     *        0             Amplify all bands with distort[]>1.
+     *
+     *        1             Amplify all bands with distort[] >= max_dist^(.5);
+     *                     ( 50% in the db scale)
+     *
+     *        2             Amplify first band with distort[] >= max_dist;
+     *
+     *
+     *  For algorithms 0 and 1, if max_dist < 1, then amplify all bands
+     *  with distort[] >= .95*max_dist.  This is to make sure we always
+     *  amplify at least one band.
+     * </PRE>
+     */
+    function amp_scalefac_bands(gfp, cod_info, distort, xrpow, bRefine) {
+        var gfc = gfp.internal_flags;
+        var ifqstep34;
+
+        if (cod_info.scalefac_scale == 0) {
+            ifqstep34 = 1.29683955465100964055;
+            /* 2**(.75*.5) */
+        } else {
+            ifqstep34 = 1.68179283050742922612;
+            /* 2**(.75*1) */
+        }
+
+        /* compute maximum value of distort[] */
+        var trigger = 0;
+        for (var sfb = 0; sfb < cod_info.sfbmax; sfb++) {
+            if (trigger < distort[sfb])
+                trigger = distort[sfb];
+        }
+
+        var noise_shaping_amp = gfc.noise_shaping_amp;
+        if (noise_shaping_amp == 3) {
+            if (bRefine)
+                noise_shaping_amp = 2;
+            else
+                noise_shaping_amp = 1;
+        }
+        switch (noise_shaping_amp) {
+            case 2:
+                /* amplify exactly 1 band */
+                break;
+
+            case 1:
+                /* amplify bands within 50% of max (on db scale) */
+                if (trigger > 1.0)
+                    trigger = Math.pow(trigger, .5);
+                else
+                    trigger *= .95;
+                break;
+
+            case 0:
+            default:
+                /* ISO algorithm. amplify all bands with distort>1 */
+                if (trigger > 1.0)
+                    trigger = 1.0;
+                else
+                    trigger *= .95;
+                break;
+        }
+
+        var j = 0;
+        for (var sfb = 0; sfb < cod_info.sfbmax; sfb++) {
+            var width = cod_info.width[sfb];
+            var l;
+            j += width;
+            if (distort[sfb] < trigger)
+                continue;
+
+            if ((gfc.substep_shaping & 2) != 0) {
+                gfc.pseudohalf[sfb] = (0 == gfc.pseudohalf[sfb]) ? 1 : 0;
+                if (0 == gfc.pseudohalf[sfb] && gfc.noise_shaping_amp == 2)
+                    return;
+            }
+            cod_info.scalefac[sfb]++;
+            for (l = -width; l < 0; l++) {
+                xrpow[j + l] *= ifqstep34;
+                if (xrpow[j + l] > cod_info.xrpow_max)
+                    cod_info.xrpow_max = xrpow[j + l];
+            }
+
+            if (gfc.noise_shaping_amp == 2)
+                return;
+        }
+    }
+
+    /**
+     * Takehiro Tominaga 2000-xx-xx
+     *
+     * turns on scalefac scale and adjusts scalefactors
+     */
+    function inc_scalefac_scale(cod_info, xrpow) {
+        var ifqstep34 = 1.29683955465100964055;
+
+        var j = 0;
+        for (var sfb = 0; sfb < cod_info.sfbmax; sfb++) {
+            var width = cod_info.width[sfb];
+            var s = cod_info.scalefac[sfb];
+            if (cod_info.preflag != 0)
+                s += qupvt.pretab[sfb];
+            j += width;
+            if ((s & 1) != 0) {
+                s++;
+                for (var l = -width; l < 0; l++) {
+                    xrpow[j + l] *= ifqstep34;
+                    if (xrpow[j + l] > cod_info.xrpow_max)
+                        cod_info.xrpow_max = xrpow[j + l];
+                }
+            }
+            cod_info.scalefac[sfb] = s >> 1;
+        }
+        cod_info.preflag = 0;
+        cod_info.scalefac_scale = 1;
+    }
+
+    /**
+     * Takehiro Tominaga 2000-xx-xx
+     *
+     * increases the subblock gain and adjusts scalefactors
+     */
+    function inc_subblock_gain(gfc, cod_info, xrpow) {
+        var sfb;
+        var scalefac = cod_info.scalefac;
+
+        /* subbloc_gain can't do anything in the long block region */
+        for (sfb = 0; sfb < cod_info.sfb_lmax; sfb++) {
+            if (scalefac[sfb] >= 16)
+                return true;
+        }
+
+        for (var window = 0; window < 3; window++) {
+            var s1 = 0;
+            var s2 = 0;
+
+            for (sfb = cod_info.sfb_lmax + window; sfb < cod_info.sfbdivide; sfb += 3) {
+                if (s1 < scalefac[sfb])
+                    s1 = scalefac[sfb];
+            }
+            for (; sfb < cod_info.sfbmax; sfb += 3) {
+                if (s2 < scalefac[sfb])
+                    s2 = scalefac[sfb];
+            }
+
+            if (s1 < 16 && s2 < 8)
+                continue;
+
+            if (cod_info.subblock_gain[window] >= 7)
+                return true;
+
+            /*
+             * even though there is no scalefactor for sfb12 subblock gain
+             * affects upper frequencies too, that's why we have to go up to
+             * SBMAX_s
+             */
+            cod_info.subblock_gain[window]++;
+            var j = gfc.scalefac_band.l[cod_info.sfb_lmax];
+            for (sfb = cod_info.sfb_lmax + window; sfb < cod_info.sfbmax; sfb += 3) {
+                var amp;
+                var width = cod_info.width[sfb];
+                var s = scalefac[sfb];
+                s = s - (4 >> cod_info.scalefac_scale);
+                if (s >= 0) {
+                    scalefac[sfb] = s;
+                    j += width * 3;
+                    continue;
+                }
+
+                scalefac[sfb] = 0;
+                {
+                    var gain = 210 + (s << (cod_info.scalefac_scale + 1));
+                    amp = qupvt.IPOW20(gain);
+                }
+                j += width * (window + 1);
+                for (var l = -width; l < 0; l++) {
+                    xrpow[j + l] *= amp;
+                    if (xrpow[j + l] > cod_info.xrpow_max)
+                        cod_info.xrpow_max = xrpow[j + l];
+                }
+                j += width * (3 - window - 1);
+            }
+
+            {
+                var amp = qupvt.IPOW20(202);
+                j += cod_info.width[sfb] * (window + 1);
+                for (var l = -cod_info.width[sfb]; l < 0; l++) {
+                    xrpow[j + l] *= amp;
+                    if (xrpow[j + l] > cod_info.xrpow_max)
+                        cod_info.xrpow_max = xrpow[j + l];
+                }
+            }
+        }
+        return false;
+    }
+
+    /**
+     * <PRE>
+     *  Takehiro Tominaga /date??
+     *  Robert Hegemann 2000-09-06: made a function of it
+     *
+     *  amplifies scalefactor bands,
+     *   - if all are already amplified returns 0
+     *   - if some bands are amplified too much:
+     *      * try to increase scalefac_scale
+     *      * if already scalefac_scale was set
+     *          try on short blocks to increase subblock gain
+     * </PRE>
+     */
+    function balance_noise(gfp, cod_info, distort, xrpow, bRefine) {
+        var gfc = gfp.internal_flags;
+
+        amp_scalefac_bands(gfp, cod_info, distort, xrpow, bRefine);
+
+        /*
+         * check to make sure we have not amplified too much loop_break returns
+         * 0 if there is an unamplified scalefac scale_bitcount returns 0 if no
+         * scalefactors are too large
+         */
+
+        var status = loop_break(cod_info);
+
+        if (status)
+            return false;
+        /* all bands amplified */
+
+        /*
+         * not all scalefactors have been amplified. so these scalefacs are
+         * possibly valid. encode them:
+         */
+        if (gfc.mode_gr == 2)
+            status = tk.scale_bitcount(cod_info);
+        else
+            status = tk.scale_bitcount_lsf(gfc, cod_info);
+
+        if (!status)
+            return true;
+        /* amplified some bands not exceeding limits */
+
+        /*
+         * some scalefactors are too large. lets try setting scalefac_scale=1
+         */
+        if (gfc.noise_shaping > 1) {
+            Arrays.fill(gfc.pseudohalf, 0);
+            if (0 == cod_info.scalefac_scale) {
+                inc_scalefac_scale(cod_info, xrpow);
+                status = false;
+            } else {
+                if (cod_info.block_type == Encoder.SHORT_TYPE
+                    && gfc.subblock_gain > 0) {
+                    status = (inc_subblock_gain(gfc, cod_info, xrpow) || loop_break(cod_info));
+                }
+            }
+        }
+
+        if (!status) {
+            if (gfc.mode_gr == 2)
+                status = tk.scale_bitcount(cod_info);
+            else
+                status = tk.scale_bitcount_lsf(gfc, cod_info);
+        }
+        return !status;
+    }
+
+    /**
+     * <PRE>
+     *  Function: The outer iteration loop controls the masking conditions
+     *  of all scalefactorbands. It computes the best scalefac and
+     *  global gain. This module calls the inner iteration loop
+     *
+     *  mt 5/99 completely rewritten to allow for bit reservoir control,
+     *  mid/side channels with L/R or mid/side masking thresholds,
+     *  and chooses best quantization instead of last quantization when
+     *  no distortion free quantization can be found.
+     *
+     *  added VBR support mt 5/99
+
+     *
+     *  some code shuffle rh 9/00
+     * </PRE>
+     *
+     * @param l3_xmin
+     *            allowed distortion
+     * @param xrpow
+     *            coloured magnitudes of spectral
+     * @param targ_bits
+     *            maximum allowed bits
+     */
+    this.outer_loop = function (gfp, cod_info, l3_xmin, xrpow, ch, targ_bits) {
+        var gfc = gfp.internal_flags;
+        var cod_info_w = new GrInfo();
+        var save_xrpow = new_float(576);
+        var distort = new_float(L3Side.SFBMAX);
+        var best_noise_info = new CalcNoiseResult();
+        var better;
+        var prev_noise = new CalcNoiseData();
+        var best_part2_3_length = 9999999;
+        var bEndOfSearch = false;
+        var bRefine = false;
+        var best_ggain_pass1 = 0;
+
+        bin_search_StepSize(gfc, cod_info, targ_bits, ch, xrpow);
+
+        if (0 == gfc.noise_shaping)
+        /* fast mode, no noise shaping, we are ready */
+            return 100;
+        /* default noise_info.over_count */
+
+        /* compute the distortion in this quantization */
+        /* coefficients and thresholds both l/r (or both mid/side) */
+        qupvt.calc_noise(cod_info, l3_xmin, distort, best_noise_info,
+            prev_noise);
+        best_noise_info.bits = cod_info.part2_3_length;
+
+        cod_info_w.assign(cod_info);
+        var age = 0;
+        System.arraycopy(xrpow, 0, save_xrpow, 0, 576);
+
+        while (!bEndOfSearch) {
+            /* BEGIN MAIN LOOP */
+            do {
+                var noise_info = new CalcNoiseResult();
+                var search_limit;
+                var maxggain = 255;
+
+                /*
+                 * When quantization with no distorted bands is found, allow up
+                 * to X new unsuccesful tries in serial. This gives us more
+                 * possibilities for different quant_compare modes. Much more
+                 * than 3 makes not a big difference, it is only slower.
+                 */
+
+                if ((gfc.substep_shaping & 2) != 0) {
+                    search_limit = 20;
+                } else {
+                    search_limit = 3;
+                }
+
+                /*
+                 * Check if the last scalefactor band is distorted. in VBR mode
+                 * we can't get rid of the distortion, so quit now and VBR mode
+                 * will try again with more bits. (makes a 10% speed increase,
+                 * the files I tested were binary identical, 2000/05/20 Robert
+                 * Hegemann) distort[] > 1 means noise > allowed noise
+                 */
+                if (gfc.sfb21_extra) {
+                    if (distort[cod_info_w.sfbmax] > 1.0)
+                        break;
+                    if (cod_info_w.block_type == Encoder.SHORT_TYPE
+                        && (distort[cod_info_w.sfbmax + 1] > 1.0 || distort[cod_info_w.sfbmax + 2] > 1.0))
+                        break;
+                }
+
+                /* try a new scalefactor conbination on cod_info_w */
+                if (!balance_noise(gfp, cod_info_w, distort, xrpow, bRefine))
+                    break;
+                if (cod_info_w.scalefac_scale != 0)
+                    maxggain = 254;
+
+                /*
+                 * inner_loop starts with the initial quantization step computed
+                 * above and slowly increases until the bits < huff_bits. Thus
+                 * it is important not to start with too large of an inital
+                 * quantization step. Too small is ok, but inner_loop will take
+                 * longer
+                 */
+                var huff_bits = targ_bits - cod_info_w.part2_length;
+                if (huff_bits <= 0)
+                    break;
+
+                /*
+                 * increase quantizer stepsize until needed bits are below
+                 * maximum
+                 */
+                while ((cod_info_w.part2_3_length = tk.count_bits(gfc, xrpow,
+                    cod_info_w, prev_noise)) > huff_bits
+                && cod_info_w.global_gain <= maxggain)
+                    cod_info_w.global_gain++;
+
+                if (cod_info_w.global_gain > maxggain)
+                    break;
+
+                if (best_noise_info.over_count == 0) {
+
+                    while ((cod_info_w.part2_3_length = tk.count_bits(gfc,
+                        xrpow, cod_info_w, prev_noise)) > best_part2_3_length
+                    && cod_info_w.global_gain <= maxggain)
+                        cod_info_w.global_gain++;
+
+                    if (cod_info_w.global_gain > maxggain)
+                        break;
+                }
+
+                /* compute the distortion in this quantization */
+                qupvt.calc_noise(cod_info_w, l3_xmin, distort, noise_info,
+                    prev_noise);
+                noise_info.bits = cod_info_w.part2_3_length;
+
+                /*
+                 * check if this quantization is better than our saved
+                 * quantization
+                 */
+                if (cod_info.block_type != Encoder.SHORT_TYPE) {
+                    // NORM, START or STOP type
+                    better = gfp.quant_comp;
+                } else
+                    better = gfp.quant_comp_short;
+
+                better = quant_compare(better, best_noise_info, noise_info,
+                    cod_info_w, distort) ? 1 : 0;
+
+                /* save data so we can restore this quantization later */
+                if (better != 0) {
+                    best_part2_3_length = cod_info.part2_3_length;
+                    best_noise_info = noise_info;
+                    cod_info.assign(cod_info_w);
+                    age = 0;
+                    /* save data so we can restore this quantization later */
+                    /* store for later reuse */
+                    System.arraycopy(xrpow, 0, save_xrpow, 0, 576);
+                } else {
+                    /* early stop? */
+                    if (gfc.full_outer_loop == 0) {
+                        if (++age > search_limit
+                            && best_noise_info.over_count == 0)
+                            break;
+                        if ((gfc.noise_shaping_amp == 3) && bRefine && age > 30)
+                            break;
+                        if ((gfc.noise_shaping_amp == 3)
+                            && bRefine
+                            && (cod_info_w.global_gain - best_ggain_pass1) > 15)
+                            break;
+                    }
+                }
+            } while ((cod_info_w.global_gain + cod_info_w.scalefac_scale) < 255);
+
+            if (gfc.noise_shaping_amp == 3) {
+                if (!bRefine) {
+                    /* refine search */
+                    cod_info_w.assign(cod_info);
+                    System.arraycopy(save_xrpow, 0, xrpow, 0, 576);
+                    age = 0;
+                    best_ggain_pass1 = cod_info_w.global_gain;
+
+                    bRefine = true;
+                } else {
+                    /* search already refined, stop */
+                    bEndOfSearch = true;
+                }
+
+            } else {
+                bEndOfSearch = true;
+            }
+        }
+
+        /*
+         * finish up
+         */
+        if (gfp.VBR == VbrMode.vbr_rh || gfp.VBR == VbrMode.vbr_mtrh)
+        /* restore for reuse on next try */
+            System.arraycopy(save_xrpow, 0, xrpow, 0, 576);
+        /*
+         * do the 'substep shaping'
+         */
+        else if ((gfc.substep_shaping & 1) != 0)
+            trancate_smallspectrums(gfc, cod_info, l3_xmin, xrpow);
+
+        return best_noise_info.over_count;
+    }
+
+    /**
+     * Robert Hegemann 2000-09-06
+     *
+     * update reservoir status after FINAL quantization/bitrate
+     */
+    this.iteration_finish_one = function (gfc, gr, ch) {
+        var l3_side = gfc.l3_side;
+        var cod_info = l3_side.tt[gr][ch];
+
+        /*
+         * try some better scalefac storage
+         */
+        tk.best_scalefac_store(gfc, gr, ch, l3_side);
+
+        /*
+         * best huffman_divide may save some bits too
+         */
+        if (gfc.use_best_huffman == 1)
+            tk.best_huffman_divide(gfc, cod_info);
+
+        /*
+         * update reservoir status after FINAL quantization/bitrate
+         */
+        rv.ResvAdjust(gfc, cod_info);
+    };
+
+    /**
+     *
+     * 2000-09-04 Robert Hegemann
+     *
+     * @param l3_xmin
+     *            allowed distortion of the scalefactor
+     * @param xrpow
+     *            coloured magnitudes of spectral values
+     */
+    this.VBR_encode_granule = function (gfp, cod_info, l3_xmin, xrpow, ch, min_bits, max_bits) {
+        var gfc = gfp.internal_flags;
+        var bst_cod_info = new GrInfo();
+        var bst_xrpow = new_float(576);
+        var Max_bits = max_bits;
+        var real_bits = max_bits + 1;
+        var this_bits = (max_bits + min_bits) / 2;
+        var dbits, over, found = 0;
+        var sfb21_extra = gfc.sfb21_extra;
+
+        Arrays.fill(bst_cod_info.l3_enc, 0);
+
+        /*
+         * search within round about 40 bits of optimal
+         */
+        do {
+
+            if (this_bits > Max_bits - 42)
+                gfc.sfb21_extra = false;
+            else
+                gfc.sfb21_extra = sfb21_extra;
+
+            over = outer_loop(gfp, cod_info, l3_xmin, xrpow, ch, this_bits);
+
+            /*
+             * is quantization as good as we are looking for ? in this case: is
+             * no scalefactor band distorted?
+             */
+            if (over <= 0) {
+                found = 1;
+                /*
+                 * now we know it can be done with "real_bits" and maybe we can
+                 * skip some iterations
+                 */
+                real_bits = cod_info.part2_3_length;
+
+                /*
+                 * store best quantization so far
+                 */
+                bst_cod_info.assign(cod_info);
+                System.arraycopy(xrpow, 0, bst_xrpow, 0, 576);
+
+                /*
+                 * try with fewer bits
+                 */
+                max_bits = real_bits - 32;
+                dbits = max_bits - min_bits;
+                this_bits = (max_bits + min_bits) / 2;
+            } else {
+                /*
+                 * try with more bits
+                 */
+                min_bits = this_bits + 32;
+                dbits = max_bits - min_bits;
+                this_bits = (max_bits + min_bits) / 2;
+
+                if (found != 0) {
+                    found = 2;
+                    /*
+                     * start again with best quantization so far
+                     */
+                    cod_info.assign(bst_cod_info);
+                    System.arraycopy(bst_xrpow, 0, xrpow, 0, 576);
+                }
+            }
+        } while (dbits > 12);
+
+        gfc.sfb21_extra = sfb21_extra;
+
+        /*
+         * found=0 => nothing found, use last one found=1 => we just found the
+         * best and left the loop found=2 => we restored a good one and have now
+         * l3_enc to restore too
+         */
+        if (found == 2) {
+            System.arraycopy(bst_cod_info.l3_enc, 0, cod_info.l3_enc, 0, 576);
+        }
+    }
+
+    /**
+     * Robert Hegemann 2000-09-05
+     *
+     * calculates * how many bits are available for analog silent granules * how
+     * many bits to use for the lowest allowed bitrate * how many bits each
+     * bitrate would provide
+     */
+    this.get_framebits = function (gfp, frameBits) {
+        var gfc = gfp.internal_flags;
+
+        /*
+         * always use at least this many bits per granule per channel unless we
+         * detect analog silence, see below
+         */
+        gfc.bitrate_index = gfc.VBR_min_bitrate;
+        var bitsPerFrame = bs.getframebits(gfp);
+
+        /*
+         * bits for analog silence
+         */
+        gfc.bitrate_index = 1;
+        bitsPerFrame = bs.getframebits(gfp);
+
+        for (var i = 1; i <= gfc.VBR_max_bitrate; i++) {
+            gfc.bitrate_index = i;
+            var mb = new MeanBits(bitsPerFrame);
+            frameBits[i] = rv.ResvFrameBegin(gfp, mb);
+            bitsPerFrame = mb.bits;
+        }
+    };
+
+    /* RH: this one needs to be overhauled sometime */
+
+    /**
+     * <PRE>
+     *  2000-09-04 Robert Hegemann
+     *
+     *  * converts LR to MS coding when necessary
+     *  * calculates allowed/adjusted quantization noise amounts
+     *  * detects analog silent frames
+     *
+     *  some remarks:
+     *  - lower masking depending on Quality setting
+     *  - quality control together with adjusted ATH MDCT scaling
+     *    on lower quality setting allocate more noise from
+     *    ATH masking, and on higher quality setting allocate
+     *    less noise from ATH masking.
+     *  - experiments show that going more than 2dB over GPSYCHO's
+     *    limits ends up in very annoying artefacts
+     * </PRE>
+     */
+    this.VBR_old_prepare = function (gfp, pe, ms_ener_ratio, ratio, l3_xmin, frameBits, min_bits,
+                                     max_bits, bands) {
+        var gfc = gfp.internal_flags;
+
+        var masking_lower_db, adjust = 0.0;
+        var analog_silence = 1;
+        var bits = 0;
+
+        gfc.bitrate_index = gfc.VBR_max_bitrate;
+        var avg = rv.ResvFrameBegin(gfp, new MeanBits(0)) / gfc.mode_gr;
+
+        get_framebits(gfp, frameBits);
+
+        for (var gr = 0; gr < gfc.mode_gr; gr++) {
+            var mxb = qupvt.on_pe(gfp, pe, max_bits[gr], avg, gr, 0);
+            if (gfc.mode_ext == Encoder.MPG_MD_MS_LR) {
+                ms_convert(gfc.l3_side, gr);
+                qupvt.reduce_side(max_bits[gr], ms_ener_ratio[gr], avg, mxb);
+            }
+            for (var ch = 0; ch < gfc.channels_out; ++ch) {
+                var cod_info = gfc.l3_side.tt[gr][ch];
+
+                if (cod_info.block_type != Encoder.SHORT_TYPE) {
+                    // NORM, START or STOP type
+                    adjust = 1.28 / (1 + Math
+                            .exp(3.5 - pe[gr][ch] / 300.)) - 0.05;
+                    masking_lower_db = gfc.PSY.mask_adjust - adjust;
+                } else {
+                    adjust = 2.56 / (1 + Math
+                            .exp(3.5 - pe[gr][ch] / 300.)) - 0.14;
+                    masking_lower_db = gfc.PSY.mask_adjust_short - adjust;
+                }
+                gfc.masking_lower = Math.pow(10.0,
+                    masking_lower_db * 0.1);
+
+                init_outer_loop(gfc, cod_info);
+                bands[gr][ch] = qupvt.calc_xmin(gfp, ratio[gr][ch], cod_info,
+                    l3_xmin[gr][ch]);
+                if (bands[gr][ch] != 0)
+                    analog_silence = 0;
+
+                min_bits[gr][ch] = 126;
+
+                bits += max_bits[gr][ch];
+            }
+        }
+        for (var gr = 0; gr < gfc.mode_gr; gr++) {
+            for (var ch = 0; ch < gfc.channels_out; ch++) {
+                if (bits > frameBits[gfc.VBR_max_bitrate]) {
+                    max_bits[gr][ch] *= frameBits[gfc.VBR_max_bitrate];
+                    max_bits[gr][ch] /= bits;
+                }
+                if (min_bits[gr][ch] > max_bits[gr][ch])
+                    min_bits[gr][ch] = max_bits[gr][ch];
+
+            }
+            /* for ch */
+        }
+        /* for gr */
+
+        return analog_silence;
+    };
+
+    this.bitpressure_strategy = function (gfc, l3_xmin, min_bits, max_bits) {
+        for (var gr = 0; gr < gfc.mode_gr; gr++) {
+            for (var ch = 0; ch < gfc.channels_out; ch++) {
+                var gi = gfc.l3_side.tt[gr][ch];
+                var pxmin = l3_xmin[gr][ch];
+                var pxminPos = 0;
+                for (var sfb = 0; sfb < gi.psy_lmax; sfb++)
+                    pxmin[pxminPos++] *= 1. + .029 * sfb * sfb
+                        / Encoder.SBMAX_l / Encoder.SBMAX_l;
+
+                if (gi.block_type == Encoder.SHORT_TYPE) {
+                    for (var sfb = gi.sfb_smin; sfb < Encoder.SBMAX_s; sfb++) {
+                        pxmin[pxminPos++] *= 1. + .029 * sfb * sfb
+                            / Encoder.SBMAX_s / Encoder.SBMAX_s;
+                        pxmin[pxminPos++] *= 1. + .029 * sfb * sfb
+                            / Encoder.SBMAX_s / Encoder.SBMAX_s;
+                        pxmin[pxminPos++] *= 1. + .029 * sfb * sfb
+                            / Encoder.SBMAX_s / Encoder.SBMAX_s;
+                    }
+                }
+                max_bits[gr][ch] = 0 | Math.max(min_bits[gr][ch],
+                        0.9 * max_bits[gr][ch]);
+            }
+        }
+    };
+
+    this.VBR_new_prepare = function (gfp, pe, ratio, l3_xmin, frameBits, max_bits) {
+        var gfc = gfp.internal_flags;
+
+        var analog_silence = 1;
+        var avg = 0, bits = 0;
+        var maximum_framebits;
+
+        if (!gfp.free_format) {
+            gfc.bitrate_index = gfc.VBR_max_bitrate;
+
+            var mb = new MeanBits(avg);
+            rv.ResvFrameBegin(gfp, mb);
+            avg = mb.bits;
+
+            get_framebits(gfp, frameBits);
+            maximum_framebits = frameBits[gfc.VBR_max_bitrate];
+        } else {
+            gfc.bitrate_index = 0;
+            var mb = new MeanBits(avg);
+            maximum_framebits = rv.ResvFrameBegin(gfp, mb);
+            avg = mb.bits;
+            frameBits[0] = maximum_framebits;
+        }
+
+        for (var gr = 0; gr < gfc.mode_gr; gr++) {
+            qupvt.on_pe(gfp, pe, max_bits[gr], avg, gr, 0);
+            if (gfc.mode_ext == Encoder.MPG_MD_MS_LR) {
+                ms_convert(gfc.l3_side, gr);
+            }
+            for (var ch = 0; ch < gfc.channels_out; ++ch) {
+                var cod_info = gfc.l3_side.tt[gr][ch];
+
+                gfc.masking_lower = Math.pow(10.0,
+                    gfc.PSY.mask_adjust * 0.1);
+
+                init_outer_loop(gfc, cod_info);
+                if (0 != qupvt.calc_xmin(gfp, ratio[gr][ch], cod_info,
+                        l3_xmin[gr][ch]))
+                    analog_silence = 0;
+
+                bits += max_bits[gr][ch];
+            }
+        }
+        for (var gr = 0; gr < gfc.mode_gr; gr++) {
+            for (var ch = 0; ch < gfc.channels_out; ch++) {
+                if (bits > maximum_framebits) {
+                    max_bits[gr][ch] *= maximum_framebits;
+                    max_bits[gr][ch] /= bits;
+                }
+
+            }
+            /* for ch */
+        }
+        /* for gr */
+
+        return analog_silence;
+    };
+
+    /**
+     * calculates target bits for ABR encoding
+     *
+     * mt 2000/05/31
+     */
+    this.calc_target_bits = function (gfp, pe, ms_ener_ratio, targ_bits, analog_silence_bits, max_frame_bits) {
+        var gfc = gfp.internal_flags;
+        var l3_side = gfc.l3_side;
+        var res_factor;
+        var gr, ch, totbits, mean_bits = 0;
+
+        gfc.bitrate_index = gfc.VBR_max_bitrate;
+        var mb = new MeanBits(mean_bits);
+        max_frame_bits[0] = rv.ResvFrameBegin(gfp, mb);
+        mean_bits = mb.bits;
+
+        gfc.bitrate_index = 1;
+        mean_bits = bs.getframebits(gfp) - gfc.sideinfo_len * 8;
+        analog_silence_bits[0] = mean_bits / (gfc.mode_gr * gfc.channels_out);
+
+        mean_bits = gfp.VBR_mean_bitrate_kbps * gfp.framesize * 1000;
+        if ((gfc.substep_shaping & 1) != 0)
+            mean_bits *= 1.09;
+        mean_bits /= gfp.out_samplerate;
+        mean_bits -= gfc.sideinfo_len * 8;
+        mean_bits /= (gfc.mode_gr * gfc.channels_out);
+
+        /**
+         * <PRE>
+         *           res_factor is the percentage of the target bitrate that should
+         *           be used on average.  the remaining bits are added to the
+         *           bitreservoir and used for difficult to encode frames.
+         *
+         *           Since we are tracking the average bitrate, we should adjust
+         *           res_factor "on the fly", increasing it if the average bitrate
+         *           is greater than the requested bitrate, and decreasing it
+         *           otherwise.  Reasonable ranges are from .9 to 1.0
+         *
+         *           Until we get the above suggestion working, we use the following
+         *           tuning:
+         *           compression ratio    res_factor
+         *           5.5  (256kbps)         1.0      no need for bitreservoir
+         *           11   (128kbps)         .93      7% held for reservoir
+         *
+         *           with linear interpolation for other values.
+         * </PRE>
+         */
+        res_factor = .93 + .07 * (11.0 - gfp.compression_ratio)
+            / (11.0 - 5.5);
+        if (res_factor < .90)
+            res_factor = .90;
+        if (res_factor > 1.00)
+            res_factor = 1.00;
+
+        for (gr = 0; gr < gfc.mode_gr; gr++) {
+            var sum = 0;
+            for (ch = 0; ch < gfc.channels_out; ch++) {
+                targ_bits[gr][ch] = (int)(res_factor * mean_bits);
+
+                if (pe[gr][ch] > 700) {
+                    var add_bits = (int)((pe[gr][ch] - 700) / 1.4);
+
+                    var cod_info = l3_side.tt[gr][ch];
+                    targ_bits[gr][ch] = (int)(res_factor * mean_bits);
+
+                    /* short blocks use a little extra, no matter what the pe */
+                    if (cod_info.block_type == Encoder.SHORT_TYPE) {
+                        if (add_bits < mean_bits / 2)
+                            add_bits = mean_bits / 2;
+                    }
+                    /* at most increase bits by 1.5*average */
+                    if (add_bits > mean_bits * 3 / 2)
+                        add_bits = mean_bits * 3 / 2;
+                    else if (add_bits < 0)
+                        add_bits = 0;
+
+                    targ_bits[gr][ch] += add_bits;
+                }
+                if (targ_bits[gr][ch] > LameInternalFlags.MAX_BITS_PER_CHANNEL) {
+                    targ_bits[gr][ch] = LameInternalFlags.MAX_BITS_PER_CHANNEL;
+                }
+                sum += targ_bits[gr][ch];
+            }
+            /* for ch */
+            if (sum > LameInternalFlags.MAX_BITS_PER_GRANULE) {
+                for (ch = 0; ch < gfc.channels_out; ++ch) {
+                    targ_bits[gr][ch] *= LameInternalFlags.MAX_BITS_PER_GRANULE;
+                    targ_bits[gr][ch] /= sum;
+                }
+            }
+        }
+        /* for gr */
+
+        if (gfc.mode_ext == Encoder.MPG_MD_MS_LR)
+            for (gr = 0; gr < gfc.mode_gr; gr++) {
+                qupvt.reduce_side(targ_bits[gr], ms_ener_ratio[gr], mean_bits
+                    * gfc.channels_out,
+                    LameInternalFlags.MAX_BITS_PER_GRANULE);
+            }
+
+        /*
+         * sum target bits
+         */
+        totbits = 0;
+        for (gr = 0; gr < gfc.mode_gr; gr++) {
+            for (ch = 0; ch < gfc.channels_out; ch++) {
+                if (targ_bits[gr][ch] > LameInternalFlags.MAX_BITS_PER_CHANNEL)
+                    targ_bits[gr][ch] = LameInternalFlags.MAX_BITS_PER_CHANNEL;
+                totbits += targ_bits[gr][ch];
+            }
+        }
+
+        /*
+         * repartion target bits if needed
+         */
+        if (totbits > max_frame_bits[0]) {
+            for (gr = 0; gr < gfc.mode_gr; gr++) {
+                for (ch = 0; ch < gfc.channels_out; ch++) {
+                    targ_bits[gr][ch] *= max_frame_bits[0];
+                    targ_bits[gr][ch] /= totbits;
+                }
+            }
+        }
+    }
+
+}
+
+/*
+ *      MP3 window subband -> subband filtering -> mdct routine
+ *
+ *      Copyright (c) 1999-2000 Takehiro Tominaga
+ *
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+/*
+ *         Special Thanks to Patrick De Smet for your advices.
+ */
+
+/* $Id: NewMDCT.java,v 1.11 2011/05/24 20:48:06 kenchis Exp $ */
+
+//package mp3;
+
+//import java.util.Arrays;
+
+
+
+function NewMDCT() {
+
+	var enwindow = [
+			-4.77e-07 * 0.740951125354959 / 2.384e-06,
+			1.03951e-04 * 0.740951125354959 / 2.384e-06,
+			9.53674e-04 * 0.740951125354959 / 2.384e-06,
+			2.841473e-03 * 0.740951125354959 / 2.384e-06,
+			3.5758972e-02 * 0.740951125354959 / 2.384e-06,
+			3.401756e-03 * 0.740951125354959 / 2.384e-06,
+			9.83715e-04 * 0.740951125354959 / 2.384e-06,
+			9.9182e-05 * 0.740951125354959 / 2.384e-06, /* 15 */
+			1.2398e-05 * 0.740951125354959 / 2.384e-06,
+			1.91212e-04 * 0.740951125354959 / 2.384e-06,
+			2.283096e-03 * 0.740951125354959 / 2.384e-06,
+			1.6994476e-02 * 0.740951125354959 / 2.384e-06,
+			-1.8756866e-02 * 0.740951125354959 / 2.384e-06,
+			-2.630711e-03 * 0.740951125354959 / 2.384e-06,
+			-2.47478e-04 * 0.740951125354959 / 2.384e-06,
+			-1.4782e-05 * 0.740951125354959 / 2.384e-06,
+			9.063471690191471e-01, 1.960342806591213e-01,
+
+			-4.77e-07 * 0.773010453362737 / 2.384e-06,
+			1.05858e-04 * 0.773010453362737 / 2.384e-06,
+			9.30786e-04 * 0.773010453362737 / 2.384e-06,
+			2.521515e-03 * 0.773010453362737 / 2.384e-06,
+			3.5694122e-02 * 0.773010453362737 / 2.384e-06,
+			3.643036e-03 * 0.773010453362737 / 2.384e-06,
+			9.91821e-04 * 0.773010453362737 / 2.384e-06,
+			9.6321e-05 * 0.773010453362737 / 2.384e-06, /* 14 */
+			1.1444e-05 * 0.773010453362737 / 2.384e-06,
+			1.65462e-04 * 0.773010453362737 / 2.384e-06,
+			2.110004e-03 * 0.773010453362737 / 2.384e-06,
+			1.6112804e-02 * 0.773010453362737 / 2.384e-06,
+			-1.9634247e-02 * 0.773010453362737 / 2.384e-06,
+			-2.803326e-03 * 0.773010453362737 / 2.384e-06,
+			-2.77042e-04 * 0.773010453362737 / 2.384e-06,
+			-1.6689e-05 * 0.773010453362737 / 2.384e-06,
+			8.206787908286602e-01, 3.901806440322567e-01,
+
+			-4.77e-07 * 0.803207531480645 / 2.384e-06,
+			1.07288e-04 * 0.803207531480645 / 2.384e-06,
+			9.02653e-04 * 0.803207531480645 / 2.384e-06,
+			2.174854e-03 * 0.803207531480645 / 2.384e-06,
+			3.5586357e-02 * 0.803207531480645 / 2.384e-06,
+			3.858566e-03 * 0.803207531480645 / 2.384e-06,
+			9.95159e-04 * 0.803207531480645 / 2.384e-06,
+			9.3460e-05 * 0.803207531480645 / 2.384e-06, /* 13 */
+			1.0014e-05 * 0.803207531480645 / 2.384e-06,
+			1.40190e-04 * 0.803207531480645 / 2.384e-06,
+			1.937389e-03 * 0.803207531480645 / 2.384e-06,
+			1.5233517e-02 * 0.803207531480645 / 2.384e-06,
+			-2.0506859e-02 * 0.803207531480645 / 2.384e-06,
+			-2.974033e-03 * 0.803207531480645 / 2.384e-06,
+			-3.07560e-04 * 0.803207531480645 / 2.384e-06,
+			-1.8120e-05 * 0.803207531480645 / 2.384e-06,
+			7.416505462720353e-01, 5.805693545089249e-01,
+
+			-4.77e-07 * 0.831469612302545 / 2.384e-06,
+			1.08242e-04 * 0.831469612302545 / 2.384e-06,
+			8.68797e-04 * 0.831469612302545 / 2.384e-06,
+			1.800537e-03 * 0.831469612302545 / 2.384e-06,
+			3.5435200e-02 * 0.831469612302545 / 2.384e-06,
+			4.049301e-03 * 0.831469612302545 / 2.384e-06,
+			9.94205e-04 * 0.831469612302545 / 2.384e-06,
+			9.0599e-05 * 0.831469612302545 / 2.384e-06, /* 12 */
+			9.060e-06 * 0.831469612302545 / 2.384e-06,
+			1.16348e-04 * 0.831469612302545 / 2.384e-06,
+			1.766682e-03 * 0.831469612302545 / 2.384e-06,
+			1.4358521e-02 * 0.831469612302545 / 2.384e-06,
+			-2.1372318e-02 * 0.831469612302545 / 2.384e-06,
+			-3.14188e-03 * 0.831469612302545 / 2.384e-06,
+			-3.39031e-04 * 0.831469612302545 / 2.384e-06,
+			-1.9550e-05 * 0.831469612302545 / 2.384e-06,
+			6.681786379192989e-01, 7.653668647301797e-01,
+
+			-4.77e-07 * 0.857728610000272 / 2.384e-06,
+			1.08719e-04 * 0.857728610000272 / 2.384e-06,
+			8.29220e-04 * 0.857728610000272 / 2.384e-06,
+			1.399517e-03 * 0.857728610000272 / 2.384e-06,
+			3.5242081e-02 * 0.857728610000272 / 2.384e-06,
+			4.215240e-03 * 0.857728610000272 / 2.384e-06,
+			9.89437e-04 * 0.857728610000272 / 2.384e-06,
+			8.7261e-05 * 0.857728610000272 / 2.384e-06, /* 11 */
+			8.106e-06 * 0.857728610000272 / 2.384e-06,
+			9.3937e-05 * 0.857728610000272 / 2.384e-06,
+			1.597881e-03 * 0.857728610000272 / 2.384e-06,
+			1.3489246e-02 * 0.857728610000272 / 2.384e-06,
+			-2.2228718e-02 * 0.857728610000272 / 2.384e-06,
+			-3.306866e-03 * 0.857728610000272 / 2.384e-06,
+			-3.71456e-04 * 0.857728610000272 / 2.384e-06,
+			-2.1458e-05 * 0.857728610000272 / 2.384e-06,
+			5.993769336819237e-01, 9.427934736519954e-01,
+
+			-4.77e-07 * 0.881921264348355 / 2.384e-06,
+			1.08719e-04 * 0.881921264348355 / 2.384e-06,
+			7.8392e-04 * 0.881921264348355 / 2.384e-06,
+			9.71317e-04 * 0.881921264348355 / 2.384e-06,
+			3.5007000e-02 * 0.881921264348355 / 2.384e-06,
+			4.357815e-03 * 0.881921264348355 / 2.384e-06,
+			9.80854e-04 * 0.881921264348355 / 2.384e-06,
+			8.3923e-05 * 0.881921264348355 / 2.384e-06, /* 10 */
+			7.629e-06 * 0.881921264348355 / 2.384e-06,
+			7.2956e-05 * 0.881921264348355 / 2.384e-06,
+			1.432419e-03 * 0.881921264348355 / 2.384e-06,
+			1.2627602e-02 * 0.881921264348355 / 2.384e-06,
+			-2.3074150e-02 * 0.881921264348355 / 2.384e-06,
+			-3.467083e-03 * 0.881921264348355 / 2.384e-06,
+			-4.04358e-04 * 0.881921264348355 / 2.384e-06,
+			-2.3365e-05 * 0.881921264348355 / 2.384e-06,
+			5.345111359507916e-01, 1.111140466039205e+00,
+
+			-9.54e-07 * 0.903989293123443 / 2.384e-06,
+			1.08242e-04 * 0.903989293123443 / 2.384e-06,
+			7.31945e-04 * 0.903989293123443 / 2.384e-06,
+			5.15938e-04 * 0.903989293123443 / 2.384e-06,
+			3.4730434e-02 * 0.903989293123443 / 2.384e-06,
+			4.477024e-03 * 0.903989293123443 / 2.384e-06,
+			9.68933e-04 * 0.903989293123443 / 2.384e-06,
+			8.0585e-05 * 0.903989293123443 / 2.384e-06, /* 9 */
+			6.676e-06 * 0.903989293123443 / 2.384e-06,
+			5.2929e-05 * 0.903989293123443 / 2.384e-06,
+			1.269817e-03 * 0.903989293123443 / 2.384e-06,
+			1.1775017e-02 * 0.903989293123443 / 2.384e-06,
+			-2.3907185e-02 * 0.903989293123443 / 2.384e-06,
+			-3.622532e-03 * 0.903989293123443 / 2.384e-06,
+			-4.38213e-04 * 0.903989293123443 / 2.384e-06,
+			-2.5272e-05 * 0.903989293123443 / 2.384e-06,
+			4.729647758913199e-01, 1.268786568327291e+00,
+
+			-9.54e-07 * 0.92387953251128675613 / 2.384e-06,
+			1.06812e-04 * 0.92387953251128675613 / 2.384e-06,
+			6.74248e-04 * 0.92387953251128675613 / 2.384e-06,
+			3.3379e-05 * 0.92387953251128675613 / 2.384e-06,
+			3.4412861e-02 * 0.92387953251128675613 / 2.384e-06,
+			4.573822e-03 * 0.92387953251128675613 / 2.384e-06,
+			9.54151e-04 * 0.92387953251128675613 / 2.384e-06,
+			7.6771e-05 * 0.92387953251128675613 / 2.384e-06,
+			6.199e-06 * 0.92387953251128675613 / 2.384e-06,
+			3.4332e-05 * 0.92387953251128675613 / 2.384e-06,
+			1.111031e-03 * 0.92387953251128675613 / 2.384e-06,
+			1.0933399e-02 * 0.92387953251128675613 / 2.384e-06,
+			-2.4725437e-02 * 0.92387953251128675613 / 2.384e-06,
+			-3.771782e-03 * 0.92387953251128675613 / 2.384e-06,
+			-4.72546e-04 * 0.92387953251128675613 / 2.384e-06,
+			-2.7657e-05 * 0.92387953251128675613 / 2.384e-06,
+			4.1421356237309504879e-01, /* tan(PI/8) */
+			1.414213562373095e+00,
+
+			-9.54e-07 * 0.941544065183021 / 2.384e-06,
+			1.05381e-04 * 0.941544065183021 / 2.384e-06,
+			6.10352e-04 * 0.941544065183021 / 2.384e-06,
+			-4.75883e-04 * 0.941544065183021 / 2.384e-06,
+			3.4055710e-02 * 0.941544065183021 / 2.384e-06,
+			4.649162e-03 * 0.941544065183021 / 2.384e-06,
+			9.35555e-04 * 0.941544065183021 / 2.384e-06,
+			7.3433e-05 * 0.941544065183021 / 2.384e-06, /* 7 */
+			5.245e-06 * 0.941544065183021 / 2.384e-06,
+			1.7166e-05 * 0.941544065183021 / 2.384e-06,
+			9.56535e-04 * 0.941544065183021 / 2.384e-06,
+			1.0103703e-02 * 0.941544065183021 / 2.384e-06,
+			-2.5527000e-02 * 0.941544065183021 / 2.384e-06,
+			-3.914356e-03 * 0.941544065183021 / 2.384e-06,
+			-5.07355e-04 * 0.941544065183021 / 2.384e-06,
+			-3.0041e-05 * 0.941544065183021 / 2.384e-06,
+			3.578057213145241e-01, 1.546020906725474e+00,
+
+			-9.54e-07 * 0.956940335732209 / 2.384e-06,
+			1.02520e-04 * 0.956940335732209 / 2.384e-06,
+			5.39303e-04 * 0.956940335732209 / 2.384e-06,
+			-1.011848e-03 * 0.956940335732209 / 2.384e-06,
+			3.3659935e-02 * 0.956940335732209 / 2.384e-06,
+			4.703045e-03 * 0.956940335732209 / 2.384e-06,
+			9.15051e-04 * 0.956940335732209 / 2.384e-06,
+			7.0095e-05 * 0.956940335732209 / 2.384e-06, /* 6 */
+			4.768e-06 * 0.956940335732209 / 2.384e-06,
+			9.54e-07 * 0.956940335732209 / 2.384e-06,
+			8.06808e-04 * 0.956940335732209 / 2.384e-06,
+			9.287834e-03 * 0.956940335732209 / 2.384e-06,
+			-2.6310921e-02 * 0.956940335732209 / 2.384e-06,
+			-4.048824e-03 * 0.956940335732209 / 2.384e-06,
+			-5.42164e-04 * 0.956940335732209 / 2.384e-06,
+			-3.2425e-05 * 0.956940335732209 / 2.384e-06,
+			3.033466836073424e-01, 1.662939224605090e+00,
+
+			-1.431e-06 * 0.970031253194544 / 2.384e-06,
+			9.9182e-05 * 0.970031253194544 / 2.384e-06,
+			4.62532e-04 * 0.970031253194544 / 2.384e-06,
+			-1.573563e-03 * 0.970031253194544 / 2.384e-06,
+			3.3225536e-02 * 0.970031253194544 / 2.384e-06,
+			4.737377e-03 * 0.970031253194544 / 2.384e-06,
+			8.91685e-04 * 0.970031253194544 / 2.384e-06,
+			6.6280e-05 * 0.970031253194544 / 2.384e-06, /* 5 */
+			4.292e-06 * 0.970031253194544 / 2.384e-06,
+			-1.3828e-05 * 0.970031253194544 / 2.384e-06,
+			6.61850e-04 * 0.970031253194544 / 2.384e-06,
+			8.487225e-03 * 0.970031253194544 / 2.384e-06,
+			-2.7073860e-02 * 0.970031253194544 / 2.384e-06,
+			-4.174709e-03 * 0.970031253194544 / 2.384e-06,
+			-5.76973e-04 * 0.970031253194544 / 2.384e-06,
+			-3.4809e-05 * 0.970031253194544 / 2.384e-06,
+			2.504869601913055e-01, 1.763842528696710e+00,
+
+			-1.431e-06 * 0.98078528040323 / 2.384e-06,
+			9.5367e-05 * 0.98078528040323 / 2.384e-06,
+			3.78609e-04 * 0.98078528040323 / 2.384e-06,
+			-2.161503e-03 * 0.98078528040323 / 2.384e-06,
+			3.2754898e-02 * 0.98078528040323 / 2.384e-06,
+			4.752159e-03 * 0.98078528040323 / 2.384e-06,
+			8.66413e-04 * 0.98078528040323 / 2.384e-06,
+			6.2943e-05 * 0.98078528040323 / 2.384e-06, /* 4 */
+			3.815e-06 * 0.98078528040323 / 2.384e-06,
+			-2.718e-05 * 0.98078528040323 / 2.384e-06,
+			5.22137e-04 * 0.98078528040323 / 2.384e-06,
+			7.703304e-03 * 0.98078528040323 / 2.384e-06,
+			-2.7815342e-02 * 0.98078528040323 / 2.384e-06,
+			-4.290581e-03 * 0.98078528040323 / 2.384e-06,
+			-6.11782e-04 * 0.98078528040323 / 2.384e-06,
+			-3.7670e-05 * 0.98078528040323 / 2.384e-06,
+			1.989123673796580e-01, 1.847759065022573e+00,
+
+			-1.907e-06 * 0.989176509964781 / 2.384e-06,
+			9.0122e-05 * 0.989176509964781 / 2.384e-06,
+			2.88486e-04 * 0.989176509964781 / 2.384e-06,
+			-2.774239e-03 * 0.989176509964781 / 2.384e-06,
+			3.2248020e-02 * 0.989176509964781 / 2.384e-06,
+			4.748821e-03 * 0.989176509964781 / 2.384e-06,
+			8.38757e-04 * 0.989176509964781 / 2.384e-06,
+			5.9605e-05 * 0.989176509964781 / 2.384e-06, /* 3 */
+			3.338e-06 * 0.989176509964781 / 2.384e-06,
+			-3.9577e-05 * 0.989176509964781 / 2.384e-06,
+			3.88145e-04 * 0.989176509964781 / 2.384e-06,
+			6.937027e-03 * 0.989176509964781 / 2.384e-06,
+			-2.8532982e-02 * 0.989176509964781 / 2.384e-06,
+			-4.395962e-03 * 0.989176509964781 / 2.384e-06,
+			-6.46591e-04 * 0.989176509964781 / 2.384e-06,
+			-4.0531e-05 * 0.989176509964781 / 2.384e-06,
+			1.483359875383474e-01, 1.913880671464418e+00,
+
+			-1.907e-06 * 0.995184726672197 / 2.384e-06,
+			8.4400e-05 * 0.995184726672197 / 2.384e-06,
+			1.91689e-04 * 0.995184726672197 / 2.384e-06,
+			-3.411293e-03 * 0.995184726672197 / 2.384e-06,
+			3.1706810e-02 * 0.995184726672197 / 2.384e-06,
+			4.728317e-03 * 0.995184726672197 / 2.384e-06,
+			8.09669e-04 * 0.995184726672197 / 2.384e-06,
+			5.579e-05 * 0.995184726672197 / 2.384e-06,
+			3.338e-06 * 0.995184726672197 / 2.384e-06,
+			-5.0545e-05 * 0.995184726672197 / 2.384e-06,
+			2.59876e-04 * 0.995184726672197 / 2.384e-06,
+			6.189346e-03 * 0.995184726672197 / 2.384e-06,
+			-2.9224873e-02 * 0.995184726672197 / 2.384e-06,
+			-4.489899e-03 * 0.995184726672197 / 2.384e-06,
+			-6.80923e-04 * 0.995184726672197 / 2.384e-06,
+			-4.3392e-05 * 0.995184726672197 / 2.384e-06,
+			9.849140335716425e-02, 1.961570560806461e+00,
+
+			-2.384e-06 * 0.998795456205172 / 2.384e-06,
+			7.7724e-05 * 0.998795456205172 / 2.384e-06,
+			8.8215e-05 * 0.998795456205172 / 2.384e-06,
+			-4.072189e-03 * 0.998795456205172 / 2.384e-06,
+			3.1132698e-02 * 0.998795456205172 / 2.384e-06,
+			4.691124e-03 * 0.998795456205172 / 2.384e-06,
+			7.79152e-04 * 0.998795456205172 / 2.384e-06,
+			5.2929e-05 * 0.998795456205172 / 2.384e-06,
+			2.861e-06 * 0.998795456205172 / 2.384e-06,
+			-6.0558e-05 * 0.998795456205172 / 2.384e-06,
+			1.37329e-04 * 0.998795456205172 / 2.384e-06,
+			5.462170e-03 * 0.998795456205172 / 2.384e-06,
+			-2.9890060e-02 * 0.998795456205172 / 2.384e-06,
+			-4.570484e-03 * 0.998795456205172 / 2.384e-06,
+			-7.14302e-04 * 0.998795456205172 / 2.384e-06,
+			-4.6253e-05 * 0.998795456205172 / 2.384e-06,
+			4.912684976946725e-02, 1.990369453344394e+00,
+
+			3.5780907e-02 * Util.SQRT2 * 0.5 / 2.384e-06,
+			1.7876148e-02 * Util.SQRT2 * 0.5 / 2.384e-06,
+			3.134727e-03 * Util.SQRT2 * 0.5 / 2.384e-06,
+			2.457142e-03 * Util.SQRT2 * 0.5 / 2.384e-06,
+			9.71317e-04 * Util.SQRT2 * 0.5 / 2.384e-06,
+			2.18868e-04 * Util.SQRT2 * 0.5 / 2.384e-06,
+			1.01566e-04 * Util.SQRT2 * 0.5 / 2.384e-06,
+			1.3828e-05 * Util.SQRT2 * 0.5 / 2.384e-06,
+
+			3.0526638e-02 / 2.384e-06, 4.638195e-03 / 2.384e-06,
+			7.47204e-04 / 2.384e-06, 4.9591e-05 / 2.384e-06,
+			4.756451e-03 / 2.384e-06, 2.1458e-05 / 2.384e-06,
+			-6.9618e-05 / 2.384e-06, /* 2.384e-06/2.384e-06 */
+	];
+
+	var NS = 12;
+	var NL = 36;
+
+	var win = [
+	    [
+	     2.382191739347913e-13,
+	     6.423305872147834e-13,
+	     9.400849094049688e-13,
+	     1.122435026096556e-12,
+	     1.183840321267481e-12,
+	     1.122435026096556e-12,
+	     9.400849094049690e-13,
+	     6.423305872147839e-13,
+	     2.382191739347918e-13,
+
+	     5.456116108943412e-12,
+	     4.878985199565852e-12,
+	     4.240448995017367e-12,
+	     3.559909094758252e-12,
+	     2.858043359288075e-12,
+	     2.156177623817898e-12,
+	     1.475637723558783e-12,
+	     8.371015190102974e-13,
+	     2.599706096327376e-13,
+
+	     -5.456116108943412e-12,
+	     -4.878985199565852e-12,
+	     -4.240448995017367e-12,
+	     -3.559909094758252e-12,
+	     -2.858043359288076e-12,
+	     -2.156177623817898e-12,
+	     -1.475637723558783e-12,
+	     -8.371015190102975e-13,
+	     -2.599706096327376e-13,
+
+	     -2.382191739347923e-13,
+	     -6.423305872147843e-13,
+	     -9.400849094049696e-13,
+	     -1.122435026096556e-12,
+	     -1.183840321267481e-12,
+	     -1.122435026096556e-12,
+	     -9.400849094049694e-13,
+	     -6.423305872147840e-13,
+	     -2.382191739347918e-13,
+	     ],
+	    [
+	     2.382191739347913e-13,
+	     6.423305872147834e-13,
+	     9.400849094049688e-13,
+	     1.122435026096556e-12,
+	     1.183840321267481e-12,
+	     1.122435026096556e-12,
+	     9.400849094049688e-13,
+	     6.423305872147841e-13,
+	     2.382191739347918e-13,
+
+	     5.456116108943413e-12,
+	     4.878985199565852e-12,
+	     4.240448995017367e-12,
+	     3.559909094758253e-12,
+	     2.858043359288075e-12,
+	     2.156177623817898e-12,
+	     1.475637723558782e-12,
+	     8.371015190102975e-13,
+	     2.599706096327376e-13,
+
+	     -5.461314069809755e-12,
+	     -4.921085770524055e-12,
+	     -4.343405037091838e-12,
+	     -3.732668368707687e-12,
+	     -3.093523840190885e-12,
+	     -2.430835727329465e-12,
+	     -1.734679010007751e-12,
+	     -9.748253656609281e-13,
+	     -2.797435120168326e-13,
+
+	     0.000000000000000e+00,
+	     0.000000000000000e+00,
+	     0.000000000000000e+00,
+	     0.000000000000000e+00,
+	     0.000000000000000e+00,
+	     0.000000000000000e+00,
+	     -2.283748241799531e-13,
+	     -4.037858874020686e-13,
+	     -2.146547464825323e-13,
+	     ],
+	    [
+	     1.316524975873958e-01, /* win[SHORT_TYPE] */
+	     4.142135623730950e-01,
+	     7.673269879789602e-01,
+
+	     1.091308501069271e+00, /* tantab_l */
+	     1.303225372841206e+00,
+	     1.569685577117490e+00,
+	     1.920982126971166e+00,
+	     2.414213562373094e+00,
+	     3.171594802363212e+00,
+	     4.510708503662055e+00,
+	     7.595754112725146e+00,
+	     2.290376554843115e+01,
+
+	     0.98480775301220802032, /* cx */
+	     0.64278760968653936292,
+	     0.34202014332566882393,
+	     0.93969262078590842791,
+	     -0.17364817766693030343,
+	     -0.76604444311897790243,
+	     0.86602540378443870761,
+	     0.500000000000000e+00,
+
+	     -5.144957554275265e-01, /* ca */
+	     -4.717319685649723e-01,
+	     -3.133774542039019e-01,
+	     -1.819131996109812e-01,
+	     -9.457419252642064e-02,
+	     -4.096558288530405e-02,
+	     -1.419856857247115e-02,
+	     -3.699974673760037e-03,
+
+	     8.574929257125442e-01, /* cs */
+	     8.817419973177052e-01,
+	     9.496286491027329e-01,
+	     9.833145924917901e-01,
+	     9.955178160675857e-01,
+	     9.991605581781475e-01,
+	     9.998991952444470e-01,
+	     9.999931550702802e-01,
+	     ],
+	    [
+	     0.000000000000000e+00,
+	     0.000000000000000e+00,
+	     0.000000000000000e+00,
+	     0.000000000000000e+00,
+	     0.000000000000000e+00,
+	     0.000000000000000e+00,
+	     2.283748241799531e-13,
+	     4.037858874020686e-13,
+	     2.146547464825323e-13,
+
+	     5.461314069809755e-12,
+	     4.921085770524055e-12,
+	     4.343405037091838e-12,
+	     3.732668368707687e-12,
+	     3.093523840190885e-12,
+	     2.430835727329466e-12,
+	     1.734679010007751e-12,
+	     9.748253656609281e-13,
+	     2.797435120168326e-13,
+
+	     -5.456116108943413e-12,
+	     -4.878985199565852e-12,
+	     -4.240448995017367e-12,
+	     -3.559909094758253e-12,
+	     -2.858043359288075e-12,
+	     -2.156177623817898e-12,
+	     -1.475637723558782e-12,
+	     -8.371015190102975e-13,
+	     -2.599706096327376e-13,
+
+	     -2.382191739347913e-13,
+	     -6.423305872147834e-13,
+	     -9.400849094049688e-13,
+	     -1.122435026096556e-12,
+	     -1.183840321267481e-12,
+	     -1.122435026096556e-12,
+	     -9.400849094049688e-13,
+	     -6.423305872147841e-13,
+	     -2.382191739347918e-13,
+	     ]
+	];
+
+	var tantab_l = win[Encoder.SHORT_TYPE];
+	var cx = win[Encoder.SHORT_TYPE];
+	var ca = win[Encoder.SHORT_TYPE];
+	var cs = win[Encoder.SHORT_TYPE];
+
+	/**
+	 * new IDCT routine written by Takehiro TOMINAGA
+	 *
+	 * PURPOSE: Overlapping window on PCM samples<BR>
+	 *
+	 * SEMANTICS:<BR>
+	 * 32 16-bit pcm samples are scaled to fractional 2's complement and
+	 * concatenated to the end of the window buffer #x#. The updated window
+	 * buffer #x# is then windowed by the analysis window #c# to produce the
+	 * windowed sample #z#
+	 */
+	var order = [
+	    0, 1, 16, 17, 8, 9, 24, 25, 4, 5, 20, 21, 12, 13, 28, 29,
+	    2, 3, 18, 19, 10, 11, 26, 27, 6, 7, 22, 23, 14, 15, 30, 31
+	];
+
+	/**
+	 * returns sum_j=0^31 a[j]*cos(PI*j*(k+1/2)/32), 0<=k<32
+	 */
+	function window_subband(x1, x1Pos, a) {
+		var wp = 10;
+
+		var x2 = x1Pos + 238 - 14 - 286;
+
+		for (var i = -15; i < 0; i++) {
+			var w, s, t;
+
+			w = enwindow[wp + -10];
+			s = x1[x2 + -224] * w;
+			t = x1[x1Pos + 224] * w;
+			w = enwindow[wp + -9];
+			s += x1[x2 + -160] * w;
+			t += x1[x1Pos + 160] * w;
+			w = enwindow[wp + -8];
+			s += x1[x2 + -96] * w;
+			t += x1[x1Pos + 96] * w;
+			w = enwindow[wp + -7];
+			s += x1[x2 + -32] * w;
+			t += x1[x1Pos + 32] * w;
+			w = enwindow[wp + -6];
+			s += x1[x2 + 32] * w;
+			t += x1[x1Pos + -32] * w;
+			w = enwindow[wp + -5];
+			s += x1[x2 + 96] * w;
+			t += x1[x1Pos + -96] * w;
+			w = enwindow[wp + -4];
+			s += x1[x2 + 160] * w;
+			t += x1[x1Pos + -160] * w;
+			w = enwindow[wp + -3];
+			s += x1[x2 + 224] * w;
+			t += x1[x1Pos + -224] * w;
+
+			w = enwindow[wp + -2];
+			s += x1[x1Pos + -256] * w;
+			t -= x1[x2 + 256] * w;
+			w = enwindow[wp + -1];
+			s += x1[x1Pos + -192] * w;
+			t -= x1[x2 + 192] * w;
+			w = enwindow[wp + 0];
+			s += x1[x1Pos + -128] * w;
+			t -= x1[x2 + 128] * w;
+			w = enwindow[wp + 1];
+			s += x1[x1Pos + -64] * w;
+			t -= x1[x2 + 64] * w;
+			w = enwindow[wp + 2];
+			s += x1[x1Pos + 0] * w;
+			t -= x1[x2 + 0] * w;
+			w = enwindow[wp + 3];
+			s += x1[x1Pos + 64] * w;
+			t -= x1[x2 + -64] * w;
+			w = enwindow[wp + 4];
+			s += x1[x1Pos + 128] * w;
+			t -= x1[x2 + -128] * w;
+			w = enwindow[wp + 5];
+			s += x1[x1Pos + 192] * w;
+			t -= x1[x2 + -192] * w;
+
+			/*
+			 * this multiplyer could be removed, but it needs more 256 FLOAT
+			 * data. thinking about the data cache performance, I think we
+			 * should not use such a huge table. tt 2000/Oct/25
+			 */
+			s *= enwindow[wp + 6];
+			w = t - s;
+			a[30 + i * 2] = t + s;
+			a[31 + i * 2] = enwindow[wp + 7] * w;
+			wp += 18;
+			x1Pos--;
+			x2++;
+		}
+		{
+			var s, t, u, v;
+			t = x1[x1Pos + -16] * enwindow[wp + -10];
+			s = x1[x1Pos + -32] * enwindow[wp + -2];
+			t += (x1[x1Pos + -48] - x1[x1Pos + 16]) * enwindow[wp + -9];
+			s += x1[x1Pos + -96] * enwindow[wp + -1];
+			t += (x1[x1Pos + -80] + x1[x1Pos + 48]) * enwindow[wp + -8];
+			s += x1[x1Pos + -160] * enwindow[wp + 0];
+			t += (x1[x1Pos + -112] - x1[x1Pos + 80]) * enwindow[wp + -7];
+			s += x1[x1Pos + -224] * enwindow[wp + 1];
+			t += (x1[x1Pos + -144] + x1[x1Pos + 112]) * enwindow[wp + -6];
+			s -= x1[x1Pos + 32] * enwindow[wp + 2];
+			t += (x1[x1Pos + -176] - x1[x1Pos + 144]) * enwindow[wp + -5];
+			s -= x1[x1Pos + 96] * enwindow[wp + 3];
+			t += (x1[x1Pos + -208] + x1[x1Pos + 176]) * enwindow[wp + -4];
+			s -= x1[x1Pos + 160] * enwindow[wp + 4];
+			t += (x1[x1Pos + -240] - x1[x1Pos + 208]) * enwindow[wp + -3];
+			s -= x1[x1Pos + 224];
+
+			u = s - t;
+			v = s + t;
+
+			t = a[14];
+			s = a[15] - t;
+
+			a[31] = v + t; /* A0 */
+			a[30] = u + s; /* A1 */
+			a[15] = u - s; /* A2 */
+			a[14] = v - t; /* A3 */
+		}
+		{
+			var xr;
+			xr = a[28] - a[0];
+			a[0] += a[28];
+			a[28] = xr * enwindow[wp + -2 * 18 + 7];
+			xr = a[29] - a[1];
+			a[1] += a[29];
+			a[29] = xr * enwindow[wp + -2 * 18 + 7];
+
+			xr = a[26] - a[2];
+			a[2] += a[26];
+			a[26] = xr * enwindow[wp + -4 * 18 + 7];
+			xr = a[27] - a[3];
+			a[3] += a[27];
+			a[27] = xr * enwindow[wp + -4 * 18 + 7];
+
+			xr = a[24] - a[4];
+			a[4] += a[24];
+			a[24] = xr * enwindow[wp + -6 * 18 + 7];
+			xr = a[25] - a[5];
+			a[5] += a[25];
+			a[25] = xr * enwindow[wp + -6 * 18 + 7];
+
+			xr = a[22] - a[6];
+			a[6] += a[22];
+			a[22] = xr * Util.SQRT2;
+			xr = a[23] - a[7];
+			a[7] += a[23];
+			a[23] = xr * Util.SQRT2 - a[7];
+			a[7] -= a[6];
+			a[22] -= a[7];
+			a[23] -= a[22];
+
+			xr = a[6];
+			a[6] = a[31] - xr;
+			a[31] = a[31] + xr;
+			xr = a[7];
+			a[7] = a[30] - xr;
+			a[30] = a[30] + xr;
+			xr = a[22];
+			a[22] = a[15] - xr;
+			a[15] = a[15] + xr;
+			xr = a[23];
+			a[23] = a[14] - xr;
+			a[14] = a[14] + xr;
+
+			xr = a[20] - a[8];
+			a[8] += a[20];
+			a[20] = xr * enwindow[wp + -10 * 18 + 7];
+			xr = a[21] - a[9];
+			a[9] += a[21];
+			a[21] = xr * enwindow[wp + -10 * 18 + 7];
+
+			xr = a[18] - a[10];
+			a[10] += a[18];
+			a[18] = xr * enwindow[wp + -12 * 18 + 7];
+			xr = a[19] - a[11];
+			a[11] += a[19];
+			a[19] = xr * enwindow[wp + -12 * 18 + 7];
+
+			xr = a[16] - a[12];
+			a[12] += a[16];
+			a[16] = xr * enwindow[wp + -14 * 18 + 7];
+			xr = a[17] - a[13];
+			a[13] += a[17];
+			a[17] = xr * enwindow[wp + -14 * 18 + 7];
+
+			xr = -a[20] + a[24];
+			a[20] += a[24];
+			a[24] = xr * enwindow[wp + -12 * 18 + 7];
+			xr = -a[21] + a[25];
+			a[21] += a[25];
+			a[25] = xr * enwindow[wp + -12 * 18 + 7];
+
+			xr = a[4] - a[8];
+			a[4] += a[8];
+			a[8] = xr * enwindow[wp + -12 * 18 + 7];
+			xr = a[5] - a[9];
+			a[5] += a[9];
+			a[9] = xr * enwindow[wp + -12 * 18 + 7];
+
+			xr = a[0] - a[12];
+			a[0] += a[12];
+			a[12] = xr * enwindow[wp + -4 * 18 + 7];
+			xr = a[1] - a[13];
+			a[1] += a[13];
+			a[13] = xr * enwindow[wp + -4 * 18 + 7];
+			xr = a[16] - a[28];
+			a[16] += a[28];
+			a[28] = xr * enwindow[wp + -4 * 18 + 7];
+			xr = -a[17] + a[29];
+			a[17] += a[29];
+			a[29] = xr * enwindow[wp + -4 * 18 + 7];
+
+			xr = Util.SQRT2 * (a[2] - a[10]);
+			a[2] += a[10];
+			a[10] = xr;
+			xr = Util.SQRT2 * (a[3] - a[11]);
+			a[3] += a[11];
+			a[11] = xr;
+			xr = Util.SQRT2 * (-a[18] + a[26]);
+			a[18] += a[26];
+			a[26] = xr - a[18];
+			xr = Util.SQRT2 * (-a[19] + a[27]);
+			a[19] += a[27];
+			a[27] = xr - a[19];
+
+			xr = a[2];
+			a[19] -= a[3];
+			a[3] -= xr;
+			a[2] = a[31] - xr;
+			a[31] += xr;
+			xr = a[3];
+			a[11] -= a[19];
+			a[18] -= xr;
+			a[3] = a[30] - xr;
+			a[30] += xr;
+			xr = a[18];
+			a[27] -= a[11];
+			a[19] -= xr;
+			a[18] = a[15] - xr;
+			a[15] += xr;
+
+			xr = a[19];
+			a[10] -= xr;
+			a[19] = a[14] - xr;
+			a[14] += xr;
+			xr = a[10];
+			a[11] -= xr;
+			a[10] = a[23] - xr;
+			a[23] += xr;
+			xr = a[11];
+			a[26] -= xr;
+			a[11] = a[22] - xr;
+			a[22] += xr;
+			xr = a[26];
+			a[27] -= xr;
+			a[26] = a[7] - xr;
+			a[7] += xr;
+
+			xr = a[27];
+			a[27] = a[6] - xr;
+			a[6] += xr;
+
+			xr = Util.SQRT2 * (a[0] - a[4]);
+			a[0] += a[4];
+			a[4] = xr;
+			xr = Util.SQRT2 * (a[1] - a[5]);
+			a[1] += a[5];
+			a[5] = xr;
+			xr = Util.SQRT2 * (a[16] - a[20]);
+			a[16] += a[20];
+			a[20] = xr;
+			xr = Util.SQRT2 * (a[17] - a[21]);
+			a[17] += a[21];
+			a[21] = xr;
+
+			xr = -Util.SQRT2 * (a[8] - a[12]);
+			a[8] += a[12];
+			a[12] = xr - a[8];
+			xr = -Util.SQRT2 * (a[9] - a[13]);
+			a[9] += a[13];
+			a[13] = xr - a[9];
+			xr = -Util.SQRT2 * (a[25] - a[29]);
+			a[25] += a[29];
+			a[29] = xr - a[25];
+			xr = -Util.SQRT2 * (a[24] + a[28]);
+			a[24] -= a[28];
+			a[28] = xr - a[24];
+
+			xr = a[24] - a[16];
+			a[24] = xr;
+			xr = a[20] - xr;
+			a[20] = xr;
+			xr = a[28] - xr;
+			a[28] = xr;
+
+			xr = a[25] - a[17];
+			a[25] = xr;
+			xr = a[21] - xr;
+			a[21] = xr;
+			xr = a[29] - xr;
+			a[29] = xr;
+
+			xr = a[17] - a[1];
+			a[17] = xr;
+			xr = a[9] - xr;
+			a[9] = xr;
+			xr = a[25] - xr;
+			a[25] = xr;
+			xr = a[5] - xr;
+			a[5] = xr;
+			xr = a[21] - xr;
+			a[21] = xr;
+			xr = a[13] - xr;
+			a[13] = xr;
+			xr = a[29] - xr;
+			a[29] = xr;
+
+			xr = a[1] - a[0];
+			a[1] = xr;
+			xr = a[16] - xr;
+			a[16] = xr;
+			xr = a[17] - xr;
+			a[17] = xr;
+			xr = a[8] - xr;
+			a[8] = xr;
+			xr = a[9] - xr;
+			a[9] = xr;
+			xr = a[24] - xr;
+			a[24] = xr;
+			xr = a[25] - xr;
+			a[25] = xr;
+			xr = a[4] - xr;
+			a[4] = xr;
+			xr = a[5] - xr;
+			a[5] = xr;
+			xr = a[20] - xr;
+			a[20] = xr;
+			xr = a[21] - xr;
+			a[21] = xr;
+			xr = a[12] - xr;
+			a[12] = xr;
+			xr = a[13] - xr;
+			a[13] = xr;
+			xr = a[28] - xr;
+			a[28] = xr;
+			xr = a[29] - xr;
+			a[29] = xr;
+
+			xr = a[0];
+			a[0] += a[31];
+			a[31] -= xr;
+			xr = a[1];
+			a[1] += a[30];
+			a[30] -= xr;
+			xr = a[16];
+			a[16] += a[15];
+			a[15] -= xr;
+			xr = a[17];
+			a[17] += a[14];
+			a[14] -= xr;
+			xr = a[8];
+			a[8] += a[23];
+			a[23] -= xr;
+			xr = a[9];
+			a[9] += a[22];
+			a[22] -= xr;
+			xr = a[24];
+			a[24] += a[7];
+			a[7] -= xr;
+			xr = a[25];
+			a[25] += a[6];
+			a[6] -= xr;
+			xr = a[4];
+			a[4] += a[27];
+			a[27] -= xr;
+			xr = a[5];
+			a[5] += a[26];
+			a[26] -= xr;
+			xr = a[20];
+			a[20] += a[11];
+			a[11] -= xr;
+			xr = a[21];
+			a[21] += a[10];
+			a[10] -= xr;
+			xr = a[12];
+			a[12] += a[19];
+			a[19] -= xr;
+			xr = a[13];
+			a[13] += a[18];
+			a[18] -= xr;
+			xr = a[28];
+			a[28] += a[3];
+			a[3] -= xr;
+			xr = a[29];
+			a[29] += a[2];
+			a[2] -= xr;
+		}
+	}
+
+	/**
+	 * Function: Calculation of the MDCT In the case of long blocks (type 0,1,3)
+	 * there are 36 coefficents in the time domain and 18 in the frequency
+	 * domain.<BR>
+	 * In the case of short blocks (type 2) there are 3 transformations with
+	 * short length. This leads to 12 coefficents in the time and 6 in the
+	 * frequency domain. In this case the results are stored side by side in the
+	 * vector out[].
+	 *
+	 * New layer3
+	 */
+	function mdct_short(inout, inoutPos) {
+		for (var l = 0; l < 3; l++) {
+			var tc0, tc1, tc2, ts0, ts1, ts2;
+
+			ts0 = inout[inoutPos + 2 * 3] * win[Encoder.SHORT_TYPE][0]
+					- inout[inoutPos + 5 * 3];
+			tc0 = inout[inoutPos + 0 * 3] * win[Encoder.SHORT_TYPE][2]
+					- inout[inoutPos + 3 * 3];
+			tc1 = ts0 + tc0;
+			tc2 = ts0 - tc0;
+
+			ts0 = inout[inoutPos + 5 * 3] * win[Encoder.SHORT_TYPE][0]
+					+ inout[inoutPos + 2 * 3];
+			tc0 = inout[inoutPos + 3 * 3] * win[Encoder.SHORT_TYPE][2]
+					+ inout[inoutPos + 0 * 3];
+			ts1 = ts0 + tc0;
+			ts2 = -ts0 + tc0;
+
+			tc0 = (inout[inoutPos + 1 * 3] * win[Encoder.SHORT_TYPE][1] - inout[inoutPos + 4 * 3]) * 2.069978111953089e-11;
+			/*
+			 * tritab_s [ 1 ]
+			 */
+			ts0 = (inout[inoutPos + 4 * 3] * win[Encoder.SHORT_TYPE][1] + inout[inoutPos + 1 * 3]) * 2.069978111953089e-11;
+			/*
+			 * tritab_s [ 1 ]
+			 */
+			inout[inoutPos + 3 * 0] = tc1 * 1.907525191737280e-11 + tc0;
+			/*
+			 * tritab_s[ 2 ]
+			 */
+			inout[inoutPos + 3 * 5] = -ts1 * 1.907525191737280e-11 + ts0;
+			/*
+			 * tritab_s[0 ]
+			 */
+			tc2 = tc2 * 0.86602540378443870761 * 1.907525191737281e-11;
+			/*
+			 * tritab_s[ 2]
+			 */
+			ts1 = ts1 * 0.5 * 1.907525191737281e-11 + ts0;
+			inout[inoutPos + 3 * 1] = tc2 - ts1;
+			inout[inoutPos + 3 * 2] = tc2 + ts1;
+
+			tc1 = tc1 * 0.5 * 1.907525191737281e-11 - tc0;
+			ts2 = ts2 * 0.86602540378443870761 * 1.907525191737281e-11;
+			/*
+			 * tritab_s[ 0]
+			 */
+			inout[inoutPos + 3 * 3] = tc1 + ts2;
+			inout[inoutPos + 3 * 4] = tc1 - ts2;
+
+			inoutPos++;
+		}
+	}
+
+	function mdct_long(out, outPos, _in) {
+		var ct, st;
+		{
+			var tc1, tc2, tc3, tc4, ts5, ts6, ts7, ts8;
+			/* 1,2, 5,6, 9,10, 13,14, 17 */
+			tc1 = _in[17] - _in[9];
+			tc3 = _in[15] - _in[11];
+			tc4 = _in[14] - _in[12];
+			ts5 = _in[0] + _in[8];
+			ts6 = _in[1] + _in[7];
+			ts7 = _in[2] + _in[6];
+			ts8 = _in[3] + _in[5];
+
+			out[outPos + 17] = (ts5 + ts7 - ts8) - (ts6 - _in[4]);
+			st = (ts5 + ts7 - ts8) * cx[12 + 7] + (ts6 - _in[4]);
+			ct = (tc1 - tc3 - tc4) * cx[12 + 6];
+			out[outPos + 5] = ct + st;
+			out[outPos + 6] = ct - st;
+
+			tc2 = (_in[16] - _in[10]) * cx[12 + 6];
+			ts6 = ts6 * cx[12 + 7] + _in[4];
+			ct = tc1 * cx[12 + 0] + tc2 + tc3 * cx[12 + 1] + tc4 * cx[12 + 2];
+			st = -ts5 * cx[12 + 4] + ts6 - ts7 * cx[12 + 5] + ts8 * cx[12 + 3];
+			out[outPos + 1] = ct + st;
+			out[outPos + 2] = ct - st;
+
+			ct = tc1 * cx[12 + 1] - tc2 - tc3 * cx[12 + 2] + tc4 * cx[12 + 0];
+			st = -ts5 * cx[12 + 5] + ts6 - ts7 * cx[12 + 3] + ts8 * cx[12 + 4];
+			out[outPos + 9] = ct + st;
+			out[outPos + 10] = ct - st;
+
+			ct = tc1 * cx[12 + 2] - tc2 + tc3 * cx[12 + 0] - tc4 * cx[12 + 1];
+			st = ts5 * cx[12 + 3] - ts6 + ts7 * cx[12 + 4] - ts8 * cx[12 + 5];
+			out[outPos + 13] = ct + st;
+			out[outPos + 14] = ct - st;
+		}
+		{
+			var ts1, ts2, ts3, ts4, tc5, tc6, tc7, tc8;
+
+			ts1 = _in[8] - _in[0];
+			ts3 = _in[6] - _in[2];
+			ts4 = _in[5] - _in[3];
+			tc5 = _in[17] + _in[9];
+			tc6 = _in[16] + _in[10];
+			tc7 = _in[15] + _in[11];
+			tc8 = _in[14] + _in[12];
+
+			out[outPos + 0] = (tc5 + tc7 + tc8) + (tc6 + _in[13]);
+			ct = (tc5 + tc7 + tc8) * cx[12 + 7] - (tc6 + _in[13]);
+			st = (ts1 - ts3 + ts4) * cx[12 + 6];
+			out[outPos + 11] = ct + st;
+			out[outPos + 12] = ct - st;
+
+			ts2 = (_in[7] - _in[1]) * cx[12 + 6];
+			tc6 = _in[13] - tc6 * cx[12 + 7];
+			ct = tc5 * cx[12 + 3] - tc6 + tc7 * cx[12 + 4] + tc8 * cx[12 + 5];
+			st = ts1 * cx[12 + 2] + ts2 + ts3 * cx[12 + 0] + ts4 * cx[12 + 1];
+			out[outPos + 3] = ct + st;
+			out[outPos + 4] = ct - st;
+
+			ct = -tc5 * cx[12 + 5] + tc6 - tc7 * cx[12 + 3] - tc8 * cx[12 + 4];
+			st = ts1 * cx[12 + 1] + ts2 - ts3 * cx[12 + 2] - ts4 * cx[12 + 0];
+			out[outPos + 7] = ct + st;
+			out[outPos + 8] = ct - st;
+
+			ct = -tc5 * cx[12 + 4] + tc6 - tc7 * cx[12 + 5] - tc8 * cx[12 + 3];
+			st = ts1 * cx[12 + 0] - ts2 + ts3 * cx[12 + 1] - ts4 * cx[12 + 2];
+			out[outPos + 15] = ct + st;
+			out[outPos + 16] = ct - st;
+		}
+	}
+
+	this.mdct_sub48 = function(gfc, w0, w1) {
+		var wk = w0;
+		var wkPos = 286;
+		/* thinking cache performance, ch->gr loop is better than gr->ch loop */
+		for (var ch = 0; ch < gfc.channels_out; ch++) {
+			for (var gr = 0; gr < gfc.mode_gr; gr++) {
+				var band;
+				var gi = (gfc.l3_side.tt[gr][ch]);
+				var mdct_enc = gi.xr;
+				var mdct_encPos = 0;
+				var samp = gfc.sb_sample[ch][1 - gr];
+				var sampPos = 0;
+
+				for (var k = 0; k < 18 / 2; k++) {
+					window_subband(wk, wkPos, samp[sampPos]);
+					window_subband(wk, wkPos + 32, samp[sampPos + 1]);
+					sampPos += 2;
+					wkPos += 64;
+					/*
+					 * Compensate for inversion in the analysis filter
+					 */
+					for (band = 1; band < 32; band += 2) {
+						samp[sampPos - 1][band] *= -1;
+					}
+				}
+
+				/*
+				 * Perform imdct of 18 previous subband samples + 18 current
+				 * subband samples
+				 */
+				for (band = 0; band < 32; band++, mdct_encPos += 18) {
+					var type = gi.block_type;
+					var band0 = gfc.sb_sample[ch][gr];
+					var band1 = gfc.sb_sample[ch][1 - gr];
+					if (gi.mixed_block_flag != 0 && band < 2)
+						type = 0;
+					if (gfc.amp_filter[band] < 1e-12) {
+						Arrays.fill(mdct_enc, mdct_encPos + 0,
+								mdct_encPos + 18, 0);
+					} else {
+						if (gfc.amp_filter[band] < 1.0) {
+							for (var k = 0; k < 18; k++)
+								band1[k][order[band]] *= gfc.amp_filter[band];
+						}
+						if (type == Encoder.SHORT_TYPE) {
+							for (var k = -NS / 4; k < 0; k++) {
+								var w = win[Encoder.SHORT_TYPE][k + 3];
+								mdct_enc[mdct_encPos + k * 3 + 9] = band0[9 + k][order[band]]
+										* w - band0[8 - k][order[band]];
+								mdct_enc[mdct_encPos + k * 3 + 18] = band0[14 - k][order[band]]
+										* w + band0[15 + k][order[band]];
+								mdct_enc[mdct_encPos + k * 3 + 10] = band0[15 + k][order[band]]
+										* w - band0[14 - k][order[band]];
+								mdct_enc[mdct_encPos + k * 3 + 19] = band1[2 - k][order[band]]
+										* w + band1[3 + k][order[band]];
+								mdct_enc[mdct_encPos + k * 3 + 11] = band1[3 + k][order[band]]
+										* w - band1[2 - k][order[band]];
+								mdct_enc[mdct_encPos + k * 3 + 20] = band1[8 - k][order[band]]
+										* w + band1[9 + k][order[band]];
+							}
+							mdct_short(mdct_enc, mdct_encPos);
+						} else {
+							var work = new_float(18);
+							for (var k = -NL / 4; k < 0; k++) {
+								var a, b;
+								a = win[type][k + 27]
+										* band1[k + 9][order[band]]
+										+ win[type][k + 36]
+										* band1[8 - k][order[band]];
+								b = win[type][k + 9]
+										* band0[k + 9][order[band]]
+										- win[type][k + 18]
+										* band0[8 - k][order[band]];
+								work[k + 9] = a - b * tantab_l[3 + k + 9];
+								work[k + 18] = a * tantab_l[3 + k + 9] + b;
+							}
+
+							mdct_long(mdct_enc, mdct_encPos, work);
+						}
+					}
+					/*
+					 * Perform aliasing reduction butterfly
+					 */
+					if (type != Encoder.SHORT_TYPE && band != 0) {
+						for (var k = 7; k >= 0; --k) {
+							var bu, bd;
+							bu = mdct_enc[mdct_encPos + k] * ca[20 + k]
+									+ mdct_enc[mdct_encPos + -1 - k]
+									* cs[28 + k];
+							bd = mdct_enc[mdct_encPos + k] * cs[28 + k]
+									- mdct_enc[mdct_encPos + -1 - k]
+									* ca[20 + k];
+
+							mdct_enc[mdct_encPos + -1 - k] = bu;
+							mdct_enc[mdct_encPos + k] = bd;
+						}
+					}
+				}
+			}
+			wk = w1;
+			wkPos = 286;
+			if (gfc.mode_gr == 1) {
+				for (var i = 0; i < 18; i++) {
+					System.arraycopy(gfc.sb_sample[ch][1][i], 0,
+							gfc.sb_sample[ch][0][i], 0, 32);
+				}
+			}
+		}
+	}
+}
+
+//package mp3;
+
+
+function III_psy_ratio() {
+	this.thm = new III_psy_xmin();
+	this.en = new III_psy_xmin();
+}
+
+
+/**
+ * ENCDELAY The encoder delay.
+ *
+ * Minimum allowed is MDCTDELAY (see below)
+ *
+ * The first 96 samples will be attenuated, so using a value less than 96
+ * will result in corrupt data for the first 96-ENCDELAY samples.
+ *
+ * suggested: 576 set to 1160 to sync with FhG.
+ */
+Encoder.ENCDELAY = 576;
+/**
+ * make sure there is at least one complete frame after the last frame
+ * containing real data
+ *
+ * Using a value of 288 would be sufficient for a a very sophisticated
+ * decoder that can decode granule-by-granule instead of frame by frame. But
+ * lets not assume this, and assume the decoder will not decode frame N
+ * unless it also has data for frame N+1
+ */
+Encoder.POSTDELAY = 1152;
+
+/**
+ * delay of the MDCT used in mdct.c original ISO routines had a delay of
+ * 528! Takehiro's routines:
+ */
+Encoder.MDCTDELAY = 48;
+Encoder.FFTOFFSET = (224 + Encoder.MDCTDELAY);
+
+/**
+ * Most decoders, including the one we use, have a delay of 528 samples.
+ */
+Encoder.DECDELAY = 528;
+
+/**
+ * number of subbands
+ */
+Encoder.SBLIMIT = 32;
+
+/**
+ * parition bands bands
+ */
+Encoder.CBANDS = 64;
+
+/**
+ * number of critical bands/scale factor bands where masking is computed
+ */
+Encoder.SBPSY_l = 21;
+Encoder.SBPSY_s = 12;
+
+/**
+ * total number of scalefactor bands encoded
+ */
+Encoder.SBMAX_l = 22;
+Encoder.SBMAX_s = 13;
+Encoder.PSFB21 = 6;
+Encoder.PSFB12 = 6;
+
+/**
+ * FFT sizes
+ */
+Encoder.BLKSIZE = 1024;
+Encoder.HBLKSIZE = (Encoder.BLKSIZE / 2 + 1);
+Encoder.BLKSIZE_s = 256;
+Encoder.HBLKSIZE_s = (Encoder.BLKSIZE_s / 2 + 1);
+
+Encoder.NORM_TYPE = 0;
+Encoder.START_TYPE = 1;
+Encoder.SHORT_TYPE = 2;
+Encoder.STOP_TYPE = 3;
+
+/**
+ * <PRE>
+ * Mode Extention:
+ * When we are in stereo mode, there are 4 possible methods to store these
+ * two channels. The stereo modes -m? are using a subset of them.
+ *
+ *  -ms: MPG_MD_LR_LR
+ *  -mj: MPG_MD_LR_LR and MPG_MD_MS_LR
+ *  -mf: MPG_MD_MS_LR
+ *  -mi: all
+ * </PRE>
+ */
+Encoder.MPG_MD_LR_LR = 0;
+Encoder.MPG_MD_LR_I = 1;
+Encoder.MPG_MD_MS_LR = 2;
+Encoder.MPG_MD_MS_I = 3;
+
+Encoder.fircoef = [-0.0207887 * 5, -0.0378413 * 5,
+    -0.0432472 * 5, -0.031183 * 5, 7.79609e-18 * 5, 0.0467745 * 5,
+    0.10091 * 5, 0.151365 * 5, 0.187098 * 5];
+
+function Encoder() {
+
+    var FFTOFFSET = Encoder.FFTOFFSET;
+    var MPG_MD_MS_LR = Encoder.MPG_MD_MS_LR;
+    //BitStream bs;
+    //PsyModel psy;
+    //VBRTag vbr;
+    //QuantizePVT qupvt;
+    var bs = null;
+    this.psy = null;
+    var psy = null;
+    var vbr = null;
+    var qupvt = null;
+
+    //public final void setModules(BitStream bs, PsyModel psy, QuantizePVT qupvt,
+    //    VBRTag vbr) {
+    this.setModules = function (_bs, _psy, _qupvt, _vbr) {
+        bs = _bs;
+        this.psy = _psy;
+        psy = _psy;
+        vbr = _vbr;
+        qupvt = _qupvt;
+    };
+
+    var newMDCT = new NewMDCT();
+
+    /***********************************************************************
+     *
+     * encoder and decoder delays
+     *
+     ***********************************************************************/
+
+    /**
+     * <PRE>
+     * layer III enc->dec delay:  1056 (1057?)   (observed)
+     * layer  II enc->dec delay:   480  (481?)   (observed)
+     *
+     * polyphase 256-16             (dec or enc)        = 240
+     * mdct      256+32  (9*32)     (dec or enc)        = 288
+     * total:    512+16
+     *
+     * My guess is that delay of polyphase filterbank is actualy 240.5
+     * (there are technical reasons for this, see postings in mp3encoder).
+     * So total Encode+Decode delay = ENCDELAY + 528 + 1
+     * </PRE>
+     */
+
+
+    /**
+     * auto-adjust of ATH, useful for low volume Gabriel Bouvigne 3 feb 2001
+     *
+     * modifies some values in gfp.internal_flags.ATH (gfc.ATH)
+     */
+//private void adjust_ATH(final LameInternalFlags gfc) {
+    function adjust_ATH(gfc) {
+        var gr2_max, max_pow;
+
+        if (gfc.ATH.useAdjust == 0) {
+            gfc.ATH.adjust = 1.0;
+            /* no adjustment */
+            return;
+        }
+
+        /* jd - 2001 mar 12, 27, jun 30 */
+        /* loudness based on equal loudness curve; */
+        /* use granule with maximum combined loudness */
+        max_pow = gfc.loudness_sq[0][0];
+        gr2_max = gfc.loudness_sq[1][0];
+        if (gfc.channels_out == 2) {
+            max_pow += gfc.loudness_sq[0][1];
+            gr2_max += gfc.loudness_sq[1][1];
+        } else {
+            max_pow += max_pow;
+            gr2_max += gr2_max;
+        }
+        if (gfc.mode_gr == 2) {
+            max_pow = Math.max(max_pow, gr2_max);
+        }
+        max_pow *= 0.5;
+        /* max_pow approaches 1.0 for full band noise */
+
+        /* jd - 2001 mar 31, jun 30 */
+        /* user tuning of ATH adjustment region */
+        max_pow *= gfc.ATH.aaSensitivityP;
+
+        /*
+         * adjust ATH depending on range of maximum value
+         */
+
+        /* jd - 2001 feb27, mar12,20, jun30, jul22 */
+        /* continuous curves based on approximation */
+        /* to GB's original values. */
+        /* For an increase in approximate loudness, */
+        /* set ATH adjust to adjust_limit immediately */
+        /* after a delay of one frame. */
+        /* For a loudness decrease, reduce ATH adjust */
+        /* towards adjust_limit gradually. */
+        /* max_pow is a loudness squared or a power. */
+        if (max_pow > 0.03125) { /* ((1 - 0.000625)/ 31.98) from curve below */
+            if (gfc.ATH.adjust >= 1.0) {
+                gfc.ATH.adjust = 1.0;
+            } else {
+                /* preceding frame has lower ATH adjust; */
+                /* ascend only to the preceding adjust_limit */
+                /* in case there is leading low volume */
+                if (gfc.ATH.adjust < gfc.ATH.adjustLimit) {
+                    gfc.ATH.adjust = gfc.ATH.adjustLimit;
+                }
+            }
+            gfc.ATH.adjustLimit = 1.0;
+        } else { /* adjustment curve */
+            /* about 32 dB maximum adjust (0.000625) */
+            var adj_lim_new = 31.98 * max_pow + 0.000625;
+            if (gfc.ATH.adjust >= adj_lim_new) { /* descend gradually */
+                gfc.ATH.adjust *= adj_lim_new * 0.075 + 0.925;
+                if (gfc.ATH.adjust < adj_lim_new) { /* stop descent */
+                    gfc.ATH.adjust = adj_lim_new;
+                }
+            } else { /* ascend */
+                if (gfc.ATH.adjustLimit >= adj_lim_new) {
+                    gfc.ATH.adjust = adj_lim_new;
+                } else {
+                    /* preceding frame has lower ATH adjust; */
+                    /* ascend only to the preceding adjust_limit */
+                    if (gfc.ATH.adjust < gfc.ATH.adjustLimit) {
+                        gfc.ATH.adjust = gfc.ATH.adjustLimit;
+                    }
+                }
+            }
+            gfc.ATH.adjustLimit = adj_lim_new;
+        }
+    }
+
+    /**
+     * <PRE>
+     *  some simple statistics
+     *
+     *  bitrate index 0: free bitrate . not allowed in VBR mode
+     *  : bitrates, kbps depending on MPEG version
+     *  bitrate index 15: forbidden
+     *
+     *  mode_ext:
+     *  0:  LR
+     *  1:  LR-i
+     *  2:  MS
+     *  3:  MS-i
+     * </PRE>
+     */
+    function updateStats(gfc) {
+        var gr, ch;
+
+        /* count bitrate indices */
+        gfc.bitrate_stereoMode_Hist[gfc.bitrate_index][4]++;
+        gfc.bitrate_stereoMode_Hist[15][4]++;
+
+        /* count 'em for every mode extension in case of 2 channel encoding */
+        if (gfc.channels_out == 2) {
+            gfc.bitrate_stereoMode_Hist[gfc.bitrate_index][gfc.mode_ext]++;
+            gfc.bitrate_stereoMode_Hist[15][gfc.mode_ext]++;
+        }
+        for (gr = 0; gr < gfc.mode_gr; ++gr) {
+            for (ch = 0; ch < gfc.channels_out; ++ch) {
+                var bt = gfc.l3_side.tt[gr][ch].block_type | 0;
+                if (gfc.l3_side.tt[gr][ch].mixed_block_flag != 0)
+                    bt = 4;
+                gfc.bitrate_blockType_Hist[gfc.bitrate_index][bt]++;
+                gfc.bitrate_blockType_Hist[gfc.bitrate_index][5]++;
+                gfc.bitrate_blockType_Hist[15][bt]++;
+                gfc.bitrate_blockType_Hist[15][5]++;
+            }
+        }
+    }
+
+    function lame_encode_frame_init(gfp, inbuf) {
+        var gfc = gfp.internal_flags;
+
+        var ch, gr;
+
+        if (gfc.lame_encode_frame_init == 0) {
+            /* prime the MDCT/polyphase filterbank with a short block */
+            var i, j;
+            var primebuff0 = new_float(286 + 1152 + 576);
+            var primebuff1 = new_float(286 + 1152 + 576);
+            gfc.lame_encode_frame_init = 1;
+            for (i = 0, j = 0; i < 286 + 576 * (1 + gfc.mode_gr); ++i) {
+                if (i < 576 * gfc.mode_gr) {
+                    primebuff0[i] = 0;
+                    if (gfc.channels_out == 2)
+                        primebuff1[i] = 0;
+                } else {
+                    primebuff0[i] = inbuf[0][j];
+                    if (gfc.channels_out == 2)
+                        primebuff1[i] = inbuf[1][j];
+                    ++j;
+                }
+            }
+            /* polyphase filtering / mdct */
+            for (gr = 0; gr < gfc.mode_gr; gr++) {
+                for (ch = 0; ch < gfc.channels_out; ch++) {
+                    gfc.l3_side.tt[gr][ch].block_type = Encoder.SHORT_TYPE;
+                }
+            }
+            newMDCT.mdct_sub48(gfc, primebuff0, primebuff1);
+
+            /* check FFT will not use a negative starting offset */
+            /* check if we have enough data for FFT */
+            /* check if we have enough data for polyphase filterbank */
+        }
+
+    }
+
+    /**
+     * <PRE>
+     * encodeframe()           Layer 3
+     *
+     * encode a single frame
+     *
+     *
+     *    lame_encode_frame()
+     *
+     *
+     *                           gr 0            gr 1
+     *    inbuf:           |--------------|--------------|--------------|
+     *
+     *
+     *    Polyphase (18 windows, each shifted 32)
+     *    gr 0:
+     *    window1          <----512---.
+     *    window18                 <----512---.
+     *
+     *    gr 1:
+     *    window1                         <----512---.
+     *    window18                                <----512---.
+     *
+     *
+     *
+     *    MDCT output:  |--------------|--------------|--------------|
+     *
+     *    FFT's                    <---------1024---------.
+     *                                             <---------1024-------.
+     *
+     *
+     *
+     *        inbuf = buffer of PCM data size=MP3 framesize
+     *        encoder acts on inbuf[ch][0], but output is delayed by MDCTDELAY
+     *        so the MDCT coefficints are from inbuf[ch][-MDCTDELAY]
+     *
+     *        psy-model FFT has a 1 granule delay, so we feed it data for the
+     *        next granule.
+     *        FFT is centered over granule:  224+576+224
+     *        So FFT starts at:   576-224-MDCTDELAY
+     *
+     *        MPEG2:  FFT ends at:  BLKSIZE+576-224-MDCTDELAY      (1328)
+     *        MPEG1:  FFT ends at:  BLKSIZE+2*576-224-MDCTDELAY    (1904)
+     *
+     *        MPEG2:  polyphase first window:  [0..511]
+     *                          18th window:   [544..1055]          (1056)
+     *        MPEG1:            36th window:   [1120..1631]         (1632)
+     *                data needed:  512+framesize-32
+     *
+     *        A close look newmdct.c shows that the polyphase filterbank
+     *        only uses data from [0..510] for each window.  Perhaps because the window
+     *        used by the filterbank is zero for the last point, so Takehiro's
+     *        code doesn't bother to compute with it.
+     *
+     *        FFT starts at 576-224-MDCTDELAY (304)  = 576-FFTOFFSET
+     *
+     * </PRE>
+     */
+
+
+    this.lame_encode_mp3_frame = function (gfp, inbuf_l, inbuf_r, mp3buf, mp3bufPos, mp3buf_size) {
+        var mp3count;
+        var masking_LR = new_array_n([2, 2]);
+        /*
+         * LR masking &
+         * energy
+         */
+        masking_LR[0][0] = new III_psy_ratio();
+        masking_LR[0][1] = new III_psy_ratio();
+        masking_LR[1][0] = new III_psy_ratio();
+        masking_LR[1][1] = new III_psy_ratio();
+        var masking_MS = new_array_n([2, 2]);
+        /* MS masking & energy */
+        masking_MS[0][0] = new III_psy_ratio();
+        masking_MS[0][1] = new III_psy_ratio();
+        masking_MS[1][0] = new III_psy_ratio();
+        masking_MS[1][1] = new III_psy_ratio();
+        //III_psy_ratio masking[][];
+        var masking;
+        /* pointer to selected maskings */
+        var inbuf = [null, null];
+        var gfc = gfp.internal_flags;
+
+        var tot_ener = new_float_n([2, 4]);
+        var ms_ener_ratio = [.5, .5];
+        var pe = [[0., 0.], [0., 0.]];
+        var pe_MS = [[0., 0.], [0., 0.]];
+
+//float[][] pe_use;
+        var pe_use;
+
+        var ch, gr;
+
+        inbuf[0] = inbuf_l;
+        inbuf[1] = inbuf_r;
+
+        if (gfc.lame_encode_frame_init == 0) {
+            /* first run? */
+            lame_encode_frame_init(gfp, inbuf);
+
+        }
+
+        /********************** padding *****************************/
+        /**
+         * <PRE>
+         * padding method as described in
+         * "MPEG-Layer3 / Bitstream Syntax and Decoding"
+         * by Martin Sieler, Ralph Sperschneider
+         *
+         * note: there is no padding for the very first frame
+         *
+         * Robert Hegemann 2000-06-22
+         * </PRE>
+         */
+        gfc.padding = 0;
+        if ((gfc.slot_lag -= gfc.frac_SpF) < 0) {
+            gfc.slot_lag += gfp.out_samplerate;
+            gfc.padding = 1;
+        }
+
+        /****************************************
+         * Stage 1: psychoacoustic model *
+         ****************************************/
+
+        if (gfc.psymodel != 0) {
+            /*
+             * psychoacoustic model psy model has a 1 granule (576) delay that
+             * we must compensate for (mt 6/99).
+             */
+            var ret;
+            var bufp = [null, null];
+            /* address of beginning of left & right granule */
+            var bufpPos = 0;
+            /* address of beginning of left & right granule */
+            var blocktype = new_int(2);
+
+            for (gr = 0; gr < gfc.mode_gr; gr++) {
+
+                for (ch = 0; ch < gfc.channels_out; ch++) {
+                    bufp[ch] = inbuf[ch];
+                    bufpPos = 576 + gr * 576 - Encoder.FFTOFFSET;
+                }
+                if (gfp.VBR == VbrMode.vbr_mtrh || gfp.VBR == VbrMode.vbr_mt) {
+                    ret = psy.L3psycho_anal_vbr(gfp, bufp, bufpPos, gr,
+                        masking_LR, masking_MS, pe[gr], pe_MS[gr],
+                        tot_ener[gr], blocktype);
+                } else {
+                    ret = psy.L3psycho_anal_ns(gfp, bufp, bufpPos, gr,
+                        masking_LR, masking_MS, pe[gr], pe_MS[gr],
+                        tot_ener[gr], blocktype);
+                }
+                if (ret != 0)
+                    return -4;
+
+                if (gfp.mode == MPEGMode.JOINT_STEREO) {
+                    ms_ener_ratio[gr] = tot_ener[gr][2] + tot_ener[gr][3];
+                    if (ms_ener_ratio[gr] > 0)
+                        ms_ener_ratio[gr] = tot_ener[gr][3] / ms_ener_ratio[gr];
+                }
+
+                /* block type flags */
+                for (ch = 0; ch < gfc.channels_out; ch++) {
+                    var cod_info = gfc.l3_side.tt[gr][ch];
+                    cod_info.block_type = blocktype[ch];
+                    cod_info.mixed_block_flag = 0;
+                }
+            }
+        } else {
+            /* no psy model */
+            for (gr = 0; gr < gfc.mode_gr; gr++)
+                for (ch = 0; ch < gfc.channels_out; ch++) {
+                    gfc.l3_side.tt[gr][ch].block_type = Encoder.NORM_TYPE;
+                    gfc.l3_side.tt[gr][ch].mixed_block_flag = 0;
+                    pe_MS[gr][ch] = pe[gr][ch] = 700;
+                }
+        }
+
+        /* auto-adjust of ATH, useful for low volume */
+        adjust_ATH(gfc);
+
+        /****************************************
+         * Stage 2: MDCT *
+         ****************************************/
+
+        /* polyphase filtering / mdct */
+        newMDCT.mdct_sub48(gfc, inbuf[0], inbuf[1]);
+
+        /****************************************
+         * Stage 3: MS/LR decision *
+         ****************************************/
+
+        /* Here will be selected MS or LR coding of the 2 stereo channels */
+        gfc.mode_ext = Encoder.MPG_MD_LR_LR;
+
+        if (gfp.force_ms) {
+            gfc.mode_ext = Encoder.MPG_MD_MS_LR;
+        } else if (gfp.mode == MPEGMode.JOINT_STEREO) {
+            /*
+             * ms_ratio = is scaled, for historical reasons, to look like a
+             * ratio of side_channel / total. 0 = signal is 100% mono .5 = L & R
+             * uncorrelated
+             */
+
+            /**
+             * <PRE>
+             * [0] and [1] are the results for the two granules in MPEG-1,
+             * in MPEG-2 it's only a faked averaging of the same value
+             * _prev is the value of the last granule of the previous frame
+             * _next is the value of the first granule of the next frame
+             * </PRE>
+             */
+
+            var sum_pe_MS = 0.;
+            var sum_pe_LR = 0.;
+            for (gr = 0; gr < gfc.mode_gr; gr++) {
+                for (ch = 0; ch < gfc.channels_out; ch++) {
+                    sum_pe_MS += pe_MS[gr][ch];
+                    sum_pe_LR += pe[gr][ch];
+                }
+            }
+
+            /* based on PE: M/S coding would not use much more bits than L/R */
+            if (sum_pe_MS <= 1.00 * sum_pe_LR) {
+
+                var gi0 = gfc.l3_side.tt[0];
+                var gi1 = gfc.l3_side.tt[gfc.mode_gr - 1];
+
+                if (gi0[0].block_type == gi0[1].block_type
+                    && gi1[0].block_type == gi1[1].block_type) {
+
+                    gfc.mode_ext = Encoder.MPG_MD_MS_LR;
+                }
+            }
+        }
+
+        /* bit and noise allocation */
+        if (gfc.mode_ext == MPG_MD_MS_LR) {
+            masking = masking_MS;
+            /* use MS masking */
+            pe_use = pe_MS;
+        } else {
+            masking = masking_LR;
+            /* use LR masking */
+            pe_use = pe;
+        }
+
+        /* copy data for MP3 frame analyzer */
+        if (gfp.analysis && gfc.pinfo != null) {
+            for (gr = 0; gr < gfc.mode_gr; gr++) {
+                for (ch = 0; ch < gfc.channels_out; ch++) {
+                    gfc.pinfo.ms_ratio[gr] = gfc.ms_ratio[gr];
+                    gfc.pinfo.ms_ener_ratio[gr] = ms_ener_ratio[gr];
+                    gfc.pinfo.blocktype[gr][ch] = gfc.l3_side.tt[gr][ch].block_type;
+                    gfc.pinfo.pe[gr][ch] = pe_use[gr][ch];
+                    System.arraycopy(gfc.l3_side.tt[gr][ch].xr, 0,
+                        gfc.pinfo.xr[gr][ch], 0, 576);
+                    /*
+                     * in psymodel, LR and MS data was stored in pinfo. switch
+                     * to MS data:
+                     */
+                    if (gfc.mode_ext == MPG_MD_MS_LR) {
+                        gfc.pinfo.ers[gr][ch] = gfc.pinfo.ers[gr][ch + 2];
+                        System.arraycopy(gfc.pinfo.energy[gr][ch + 2], 0,
+                            gfc.pinfo.energy[gr][ch], 0,
+                            gfc.pinfo.energy[gr][ch].length);
+                    }
+                }
+            }
+        }
+
+        /****************************************
+         * Stage 4: quantization loop *
+         ****************************************/
+
+        if (gfp.VBR == VbrMode.vbr_off || gfp.VBR == VbrMode.vbr_abr) {
+
+            var i;
+            var f;
+
+            for (i = 0; i < 18; i++)
+                gfc.nsPsy.pefirbuf[i] = gfc.nsPsy.pefirbuf[i + 1];
+
+            f = 0.0;
+            for (gr = 0; gr < gfc.mode_gr; gr++)
+                for (ch = 0; ch < gfc.channels_out; ch++)
+                    f += pe_use[gr][ch];
+            gfc.nsPsy.pefirbuf[18] = f;
+
+            f = gfc.nsPsy.pefirbuf[9];
+            for (i = 0; i < 9; i++)
+                f += (gfc.nsPsy.pefirbuf[i] + gfc.nsPsy.pefirbuf[18 - i])
+                    * Encoder.fircoef[i];
+
+            f = (670 * 5 * gfc.mode_gr * gfc.channels_out) / f;
+            for (gr = 0; gr < gfc.mode_gr; gr++) {
+                for (ch = 0; ch < gfc.channels_out; ch++) {
+                    pe_use[gr][ch] *= f;
+                }
+            }
+        }
+        gfc.iteration_loop.iteration_loop(gfp, pe_use, ms_ener_ratio, masking);
+
+        /****************************************
+         * Stage 5: bitstream formatting *
+         ****************************************/
+
+        /* write the frame to the bitstream */
+        bs.format_bitstream(gfp);
+
+        /* copy mp3 bit buffer into array */
+        mp3count = bs.copy_buffer(gfc, mp3buf, mp3bufPos, mp3buf_size, 1);
+
+        if (gfp.bWriteVbrTag)
+            vbr.addVbrFrame(gfp);
+
+        if (gfp.analysis && gfc.pinfo != null) {
+            for (ch = 0; ch < gfc.channels_out; ch++) {
+                var j;
+                for (j = 0; j < FFTOFFSET; j++)
+                    gfc.pinfo.pcmdata[ch][j] = gfc.pinfo.pcmdata[ch][j
+                    + gfp.framesize];
+                for (j = FFTOFFSET; j < 1600; j++) {
+                    gfc.pinfo.pcmdata[ch][j] = inbuf[ch][j - FFTOFFSET];
+                }
+            }
+            qupvt.set_frame_pinfo(gfp, masking);
+        }
+
+        updateStats(gfc);
+
+        return mp3count;
+    }
+}
+
+
+//package mp3;
+
+function VBRSeekInfo() {
+    /**
+     * What we have seen so far.
+     */
+    this.sum = 0;
+    /**
+     * How many frames we have seen in this chunk.
+     */
+    this.seen = 0;
+    /**
+     * How many frames we want to collect into one chunk.
+     */
+    this.want = 0;
+    /**
+     * Actual position in our bag.
+     */
+    this.pos = 0;
+    /**
+     * Size of our bag.
+     */
+    this.size = 0;
+    /**
+     * Pointer to our bag.
+     */
+    this.bag = null;
+    this.nVbrNumFrames = 0;
+    this.nBytesWritten = 0;
+    /* VBR tag data */
+    this.TotalFrameSize = 0;
+}
+
+
+
+function IIISideInfo() {
+    this.tt = [[null, null], [null, null]];
+    this.main_data_begin = 0;
+    this.private_bits = 0;
+    this.resvDrain_pre = 0;
+    this.resvDrain_post = 0;
+    this.scfsi = [new_int(4), new_int(4)];
+
+    for (var gr = 0; gr < 2; gr++) {
+        for (var ch = 0; ch < 2; ch++) {
+            this.tt[gr][ch] = new GrInfo();
+        }
+    }
+}
+
+
+function III_psy_xmin() {
+    this.l = new_float(Encoder.SBMAX_l);
+    this.s = new_float_n([Encoder.SBMAX_s, 3]);
+
+    var self = this;
+    this.assign = function (iii_psy_xmin) {
+        System.arraycopy(iii_psy_xmin.l, 0, self.l, 0, Encoder.SBMAX_l);
+        for (var i = 0; i < Encoder.SBMAX_s; i++) {
+            for (var j = 0; j < 3; j++) {
+                self.s[i][j] = iii_psy_xmin.s[i][j];
+            }
+        }
+    }
+}
+
+
+
+//package mp3;
+
+/**
+ * Variables used for --nspsytune
+ *
+ * @author Ken
+ *
+ */
+function NsPsy() {
+    this.last_en_subshort = new_float_n([4, 9]);
+    this.lastAttacks = new_int(4);
+    this.pefirbuf = new_float(19);
+    this.longfact = new_float(Encoder.SBMAX_l);
+    this.shortfact = new_float(Encoder.SBMAX_s);
+
+    /**
+     * short block tuning
+     */
+    this.attackthre = 0.;
+    this.attackthre_s = 0.;
+}
+
+
+
+
+LameInternalFlags.MFSIZE = (3 * 1152 + Encoder.ENCDELAY - Encoder.MDCTDELAY);
+LameInternalFlags.MAX_HEADER_BUF = 256;
+LameInternalFlags.MAX_BITS_PER_CHANNEL = 4095;
+LameInternalFlags.MAX_BITS_PER_GRANULE = 7680;
+LameInternalFlags.BPC = 320;
+
+function LameInternalFlags() {
+    var MAX_HEADER_LEN = 40;
+
+
+    /********************************************************************
+     * internal variables NOT set by calling program, and should not be *
+     * modified by the calling program *
+     ********************************************************************/
+
+    /**
+     * Some remarks to the Class_ID field: The Class ID is an Identifier for a
+     * pointer to this struct. It is very unlikely that a pointer to
+     * lame_global_flags has the same 32 bits in it's structure (large and other
+     * special properties, for instance prime).
+     *
+     * To test that the structure is right and initialized, use: if ( gfc .
+     * Class_ID == LAME_ID ) ... Other remark: If you set a flag to 0 for uninit
+     * data and 1 for init data, the right test should be "if (flag == 1)" and
+     * NOT "if (flag)". Unintended modification of this element will be
+     * otherwise misinterpreted as an init.
+     */
+    this.Class_ID = 0;
+
+    this.lame_encode_frame_init = 0;
+    this.iteration_init_init = 0;
+    this.fill_buffer_resample_init = 0;
+
+    //public float mfbuf[][] = new float[2][MFSIZE];
+    this.mfbuf = new_float_n([2, LameInternalFlags.MFSIZE]);
+
+    /**
+     * granules per frame
+     */
+    this.mode_gr = 0;
+    /**
+     * number of channels in the input data stream (PCM or decoded PCM)
+     */
+    this.channels_in = 0;
+    /**
+     * number of channels in the output data stream (not used for decoding)
+     */
+    this.channels_out = 0;
+    /**
+     * input_samp_rate/output_samp_rate
+     */
+        //public double resample_ratio;
+    this.resample_ratio = 0.;
+
+    this.mf_samples_to_encode = 0;
+    this.mf_size = 0;
+    /**
+     * min bitrate index
+     */
+    this.VBR_min_bitrate = 0;
+    /**
+     * max bitrate index
+     */
+    this.VBR_max_bitrate = 0;
+    this.bitrate_index = 0;
+    this.samplerate_index = 0;
+    this.mode_ext = 0;
+
+    /* lowpass and highpass filter control */
+    /**
+     * normalized frequency bounds of passband
+     */
+    this.lowpass1 = 0.;
+    this.lowpass2 = 0.;
+    /**
+     * normalized frequency bounds of passband
+     */
+    this.highpass1 = 0.;
+    this.highpass2 = 0.;
+
+    /**
+     * 0 = none 1 = ISO AAC model 2 = allow scalefac_select=1
+     */
+    this.noise_shaping = 0;
+
+    /**
+     * 0 = ISO model: amplify all distorted bands<BR>
+     * 1 = amplify within 50% of max (on db scale)<BR>
+     * 2 = amplify only most distorted band<BR>
+     * 3 = method 1 and refine with method 2<BR>
+     */
+    this.noise_shaping_amp = 0;
+    /**
+     * 0 = no substep<BR>
+     * 1 = use substep shaping at last step(VBR only)<BR>
+     * (not implemented yet)<BR>
+     * 2 = use substep inside loop<BR>
+     * 3 = use substep inside loop and last step<BR>
+     */
+    this.substep_shaping = 0;
+
+    /**
+     * 1 = gpsycho. 0 = none
+     */
+    this.psymodel = 0;
+    /**
+     * 0 = stop at over=0, all scalefacs amplified or<BR>
+     * a scalefac has reached max value<BR>
+     * 1 = stop when all scalefacs amplified or a scalefac has reached max value<BR>
+     * 2 = stop when all scalefacs amplified
+     */
+    this.noise_shaping_stop = 0;
+
+    /**
+     * 0 = no, 1 = yes
+     */
+    this.subblock_gain = 0;
+    /**
+     * 0 = no. 1=outside loop 2=inside loop(slow)
+     */
+    this.use_best_huffman = 0;
+
+    /**
+     * 0 = stop early after 0 distortion found. 1 = full search
+     */
+    this.full_outer_loop = 0;
+
+    //public IIISideInfo l3_side = new IIISideInfo();
+    this.l3_side = new IIISideInfo();
+    this.ms_ratio = new_float(2);
+
+    /* used for padding */
+    /**
+     * padding for the current frame?
+     */
+    this.padding = 0;
+    this.frac_SpF = 0;
+    this.slot_lag = 0;
+
+    /**
+     * optional ID3 tags
+     */
+        //public ID3TagSpec tag_spec;
+    this.tag_spec = null;
+    this.nMusicCRC = 0;
+
+    /* variables used by Quantize */
+    //public int OldValue[] = new int[2];
+    this.OldValue = new_int(2);
+    //public int CurrentStep[] = new int[2];
+    this.CurrentStep = new_int(2);
+
+    this.masking_lower = 0.;
+    //public int bv_scf[] = new int[576];
+    this.bv_scf = new_int(576);
+    //public int pseudohalf[] = new int[L3Side.SFBMAX];
+    this.pseudohalf = new_int(L3Side.SFBMAX);
+
+    /**
+     * will be set in lame_init_params
+     */
+    this.sfb21_extra = false;
+
+    /* BPC = maximum number of filter convolution windows to precompute */
+    //public float[][] inbuf_old = new float[2][];
+    this.inbuf_old = new Array(2);
+    //public float[][] blackfilt = new float[2 * BPC + 1][];
+    this.blackfilt = new Array(2 * LameInternalFlags.BPC + 1);
+    //public double itime[] = new double[2];
+    this.itime = new_double(2);
+    this.sideinfo_len = 0;
+
+    /* variables for newmdct.c */
+    //public float sb_sample[][][][] = new float[2][2][18][Encoder.SBLIMIT];
+    this.sb_sample = new_float_n([2, 2, 18, Encoder.SBLIMIT]);
+    this.amp_filter = new_float(32);
+
+    /* variables for BitStream */
+
+    /**
+     * <PRE>
+     * mpeg1: buffer=511 bytes  smallest frame: 96-38(sideinfo)=58
+     * max number of frames in reservoir:  8
+     * mpeg2: buffer=255 bytes.  smallest frame: 24-23bytes=1
+     * with VBR, if you are encoding all silence, it is possible to
+     * have 8kbs/24khz frames with 1byte of data each, which means we need
+     * to buffer up to 255 headers!
+     * </PRE>
+     */
+    /**
+     * also, max_header_buf has to be a power of two
+     */
+    /**
+     * max size of header is 38
+     */
+
+    function Header() {
+        this.write_timing = 0;
+        this.ptr = 0;
+        //public byte buf[] = new byte[MAX_HEADER_LEN];
+        this.buf = new_byte(MAX_HEADER_LEN);
+    }
+
+    this.header = new Array(LameInternalFlags.MAX_HEADER_BUF);
+
+    this.h_ptr = 0;
+    this.w_ptr = 0;
+    this.ancillary_flag = 0;
+
+    /* variables for Reservoir */
+    /**
+     * in bits
+     */
+    this.ResvSize = 0;
+    /**
+     * in bits
+     */
+    this.ResvMax = 0;
+
+    //public ScaleFac scalefac_band = new ScaleFac();
+    this.scalefac_band = new ScaleFac();
+
+    /* daa from PsyModel */
+    /* The static variables "r", "phi_sav", "new", "old" and "oldest" have */
+    /* to be remembered for the unpredictability measure. For "r" and */
+    /* "phi_sav", the first index from the left is the channel select and */
+    /* the second index is the "age" of the data. */
+    this.minval_l = new_float(Encoder.CBANDS);
+    this.minval_s = new_float(Encoder.CBANDS);
+    this.nb_1 = new_float_n([4, Encoder.CBANDS]);
+    this.nb_2 = new_float_n([4, Encoder.CBANDS]);
+    this.nb_s1 = new_float_n([4, Encoder.CBANDS]);
+    this.nb_s2 = new_float_n([4, Encoder.CBANDS]);
+    this.s3_ss = null;
+    this.s3_ll = null;
+    this.decay = 0.;
+
+    //public III_psy_xmin[] thm = new III_psy_xmin[4];
+    //public III_psy_xmin[] en = new III_psy_xmin[4];
+    this.thm = new Array(4);
+    this.en = new Array(4);
+
+    /**
+     * fft and energy calculation
+     */
+    this.tot_ener = new_float(4);
+
+    /* loudness calculation (for adaptive threshold of hearing) */
+    /**
+     * loudness^2 approx. per granule and channel
+     */
+    this.loudness_sq = new_float_n([2, 2]);
+    /**
+     * account for granule delay of L3psycho_anal
+     */
+    this.loudness_sq_save = new_float(2);
+
+    /**
+     * Scale Factor Bands
+     */
+    this.mld_l = new_float(Encoder.SBMAX_l);
+    this.mld_s = new_float(Encoder.SBMAX_s);
+    this.bm_l = new_int(Encoder.SBMAX_l);
+    this.bo_l = new_int(Encoder.SBMAX_l);
+    this.bm_s = new_int(Encoder.SBMAX_s);
+    this.bo_s = new_int(Encoder.SBMAX_s);
+    this.npart_l = 0;
+    this.npart_s = 0;
+
+    this.s3ind = new_int_n([Encoder.CBANDS, 2]);
+    this.s3ind_s = new_int_n([Encoder.CBANDS, 2]);
+
+    this.numlines_s = new_int(Encoder.CBANDS);
+    this.numlines_l = new_int(Encoder.CBANDS);
+    this.rnumlines_l = new_float(Encoder.CBANDS);
+    this.mld_cb_l = new_float(Encoder.CBANDS);
+    this.mld_cb_s = new_float(Encoder.CBANDS);
+    this.numlines_s_num1 = 0;
+    this.numlines_l_num1 = 0;
+
+    /* ratios */
+    this.pe = new_float(4);
+    this.ms_ratio_s_old = 0.;
+    this.ms_ratio_l_old = 0.;
+    this.ms_ener_ratio_old = 0.;
+
+    /**
+     * block type
+     */
+    this.blocktype_old = new_int(2);
+
+    /**
+     * variables used for --nspsytune
+     */
+    this.nsPsy = new NsPsy();
+
+    /**
+     * used for Xing VBR header
+     */
+    this.VBR_seek_table = new VBRSeekInfo();
+
+    /**
+     * all ATH related stuff
+     */
+        //public ATH ATH;
+    this.ATH = null;
+
+    this.PSY = null;
+
+    this.nogap_total = 0;
+    this.nogap_current = 0;
+
+    /* ReplayGain */
+    this.decode_on_the_fly = true;
+    this.findReplayGain = true;
+    this.findPeakSample = true;
+    this.PeakSample = 0.;
+    this.RadioGain = 0;
+    this.AudiophileGain = 0;
+    //public ReplayGain rgdata;
+    this.rgdata = null;
+
+    /**
+     * gain change required for preventing clipping
+     */
+    this.noclipGainChange = 0;
+    /**
+     * user-specified scale factor required for preventing clipping
+     */
+    this.noclipScale = 0.;
+
+    /* simple statistics */
+    this.bitrate_stereoMode_Hist = new_int_n([16, 4 + 1]);
+    /**
+     * norm/start/short/stop/mixed(short)/sum
+     */
+    this.bitrate_blockType_Hist = new_int_n([16, 4 + 1 + 1]);
+
+    //public PlottingData pinfo;
+    //public MPGLib.mpstr_tag hip;
+    this.pinfo = null;
+    this.hip = null;
+
+    this.in_buffer_nsamples = 0;
+    //public float[] in_buffer_0;
+    //public float[] in_buffer_1;
+    this.in_buffer_0 = null;
+    this.in_buffer_1 = null;
+
+    //public IIterationLoop iteration_loop;
+    this.iteration_loop = null;
+
+    for (var i = 0; i < this.en.length; i++) {
+        this.en[i] = new III_psy_xmin();
+    }
+    for (var i = 0; i < this.thm.length; i++) {
+        this.thm[i] = new III_psy_xmin();
+    }
+    for (var i = 0; i < this.header.length; i++) {
+        this.header[i] = new Header();
+    }
+
+}
+
+
+
+function FFT() {
+
+    var window = new_float(Encoder.BLKSIZE);
+    var window_s = new_float(Encoder.BLKSIZE_s / 2);
+
+    var costab = [
+        9.238795325112867e-01, 3.826834323650898e-01,
+        9.951847266721969e-01, 9.801714032956060e-02,
+        9.996988186962042e-01, 2.454122852291229e-02,
+        9.999811752826011e-01, 6.135884649154475e-03
+    ];
+
+    function fht(fz, fzPos, n) {
+        var tri = 0;
+        var k4;
+        var fi;
+        var gi;
+
+        n <<= 1;
+        /* to get BLKSIZE, because of 3DNow! ASM routine */
+        var fn = fzPos + n;
+        k4 = 4;
+        do {
+            var s1, c1;
+            var i, k1, k2, k3, kx;
+            kx = k4 >> 1;
+            k1 = k4;
+            k2 = k4 << 1;
+            k3 = k2 + k1;
+            k4 = k2 << 1;
+            fi = fzPos;
+            gi = fi + kx;
+            do {
+                var f0, f1, f2, f3;
+                f1 = fz[fi + 0] - fz[fi + k1];
+                f0 = fz[fi + 0] + fz[fi + k1];
+                f3 = fz[fi + k2] - fz[fi + k3];
+                f2 = fz[fi + k2] + fz[fi + k3];
+                fz[fi + k2] = f0 - f2;
+                fz[fi + 0] = f0 + f2;
+                fz[fi + k3] = f1 - f3;
+                fz[fi + k1] = f1 + f3;
+                f1 = fz[gi + 0] - fz[gi + k1];
+                f0 = fz[gi + 0] + fz[gi + k1];
+                f3 = (Util.SQRT2 * fz[gi + k3]);
+                f2 = (Util.SQRT2 * fz[gi + k2]);
+                fz[gi + k2] = f0 - f2;
+                fz[gi + 0] = f0 + f2;
+                fz[gi + k3] = f1 - f3;
+                fz[gi + k1] = f1 + f3;
+                gi += k4;
+                fi += k4;
+            } while (fi < fn);
+            c1 = costab[tri + 0];
+            s1 = costab[tri + 1];
+            for (i = 1; i < kx; i++) {
+                var c2, s2;
+                c2 = 1 - (2 * s1) * s1;
+                s2 = (2 * s1) * c1;
+                fi = fzPos + i;
+                gi = fzPos + k1 - i;
+                do {
+                    var a, b, g0, f0, f1, g1, f2, g2, f3, g3;
+                    b = s2 * fz[fi + k1] - c2 * fz[gi + k1];
+                    a = c2 * fz[fi + k1] + s2 * fz[gi + k1];
+                    f1 = fz[fi + 0] - a;
+                    f0 = fz[fi + 0] + a;
+                    g1 = fz[gi + 0] - b;
+                    g0 = fz[gi + 0] + b;
+                    b = s2 * fz[fi + k3] - c2 * fz[gi + k3];
+                    a = c2 * fz[fi + k3] + s2 * fz[gi + k3];
+                    f3 = fz[fi + k2] - a;
+                    f2 = fz[fi + k2] + a;
+                    g3 = fz[gi + k2] - b;
+                    g2 = fz[gi + k2] + b;
+                    b = s1 * f2 - c1 * g3;
+                    a = c1 * f2 + s1 * g3;
+                    fz[fi + k2] = f0 - a;
+                    fz[fi + 0] = f0 + a;
+                    fz[gi + k3] = g1 - b;
+                    fz[gi + k1] = g1 + b;
+                    b = c1 * g2 - s1 * f3;
+                    a = s1 * g2 + c1 * f3;
+                    fz[gi + k2] = g0 - a;
+                    fz[gi + 0] = g0 + a;
+                    fz[fi + k3] = f1 - b;
+                    fz[fi + k1] = f1 + b;
+                    gi += k4;
+                    fi += k4;
+                } while (fi < fn);
+                c2 = c1;
+                c1 = c2 * costab[tri + 0] - s1 * costab[tri + 1];
+                s1 = c2 * costab[tri + 1] + s1 * costab[tri + 0];
+            }
+            tri += 2;
+        } while (k4 < n);
+    }
+
+    var rv_tbl = [0x00, 0x80, 0x40,
+        0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x10,
+        0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70,
+        0xf0, 0x08, 0x88, 0x48, 0xc8, 0x28,
+        0xa8, 0x68, 0xe8, 0x18, 0x98, 0x58,
+        0xd8, 0x38, 0xb8, 0x78, 0xf8, 0x04,
+        0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64,
+        0xe4, 0x14, 0x94, 0x54, 0xd4, 0x34,
+        0xb4, 0x74, 0xf4, 0x0c, 0x8c, 0x4c,
+        0xcc, 0x2c, 0xac, 0x6c, 0xec, 0x1c,
+        0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c,
+        0xfc, 0x02, 0x82, 0x42, 0xc2, 0x22,
+        0xa2, 0x62, 0xe2, 0x12, 0x92, 0x52,
+        0xd2, 0x32, 0xb2, 0x72, 0xf2, 0x0a,
+        0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a,
+        0xea, 0x1a, 0x9a, 0x5a, 0xda, 0x3a,
+        0xba, 0x7a, 0xfa, 0x06, 0x86, 0x46,
+        0xc6, 0x26, 0xa6, 0x66, 0xe6, 0x16,
+        0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76,
+        0xf6, 0x0e, 0x8e, 0x4e, 0xce, 0x2e,
+        0xae, 0x6e, 0xee, 0x1e, 0x9e, 0x5e,
+        0xde, 0x3e, 0xbe, 0x7e, 0xfe];
+
+    this.fft_short = function (gfc, x_real, chn, buffer, bufPos) {
+        for (var b = 0; b < 3; b++) {
+            var x = Encoder.BLKSIZE_s / 2;
+            var k = 0xffff & ((576 / 3) * (b + 1));
+            var j = Encoder.BLKSIZE_s / 8 - 1;
+            do {
+                var f0, f1, f2, f3, w;
+                var i = rv_tbl[j << 2] & 0xff;
+
+                f0 = window_s[i] * buffer[chn][bufPos + i + k];
+                w = window_s[0x7f - i] * buffer[chn][bufPos + i + k + 0x80];
+                f1 = f0 - w;
+                f0 = f0 + w;
+                f2 = window_s[i + 0x40] * buffer[chn][bufPos + i + k + 0x40];
+                w = window_s[0x3f - i] * buffer[chn][bufPos + i + k + 0xc0];
+                f3 = f2 - w;
+                f2 = f2 + w;
+
+                x -= 4;
+                x_real[b][x + 0] = f0 + f2;
+                x_real[b][x + 2] = f0 - f2;
+                x_real[b][x + 1] = f1 + f3;
+                x_real[b][x + 3] = f1 - f3;
+
+                f0 = window_s[i + 0x01] * buffer[chn][bufPos + i + k + 0x01];
+                w = window_s[0x7e - i] * buffer[chn][bufPos + i + k + 0x81];
+                f1 = f0 - w;
+                f0 = f0 + w;
+                f2 = window_s[i + 0x41] * buffer[chn][bufPos + i + k + 0x41];
+                w = window_s[0x3e - i] * buffer[chn][bufPos + i + k + 0xc1];
+                f3 = f2 - w;
+                f2 = f2 + w;
+
+                x_real[b][x + Encoder.BLKSIZE_s / 2 + 0] = f0 + f2;
+                x_real[b][x + Encoder.BLKSIZE_s / 2 + 2] = f0 - f2;
+                x_real[b][x + Encoder.BLKSIZE_s / 2 + 1] = f1 + f3;
+                x_real[b][x + Encoder.BLKSIZE_s / 2 + 3] = f1 - f3;
+            } while (--j >= 0);
+
+            fht(x_real[b], x, Encoder.BLKSIZE_s / 2);
+            /* BLKSIZE_s/2 because of 3DNow! ASM routine */
+            /* BLKSIZE/2 because of 3DNow! ASM routine */
+        }
+    }
+
+    this.fft_long = function (gfc, y, chn, buffer, bufPos) {
+        var jj = Encoder.BLKSIZE / 8 - 1;
+        var x = Encoder.BLKSIZE / 2;
+
+        do {
+            var f0, f1, f2, f3, w;
+            var i = rv_tbl[jj] & 0xff;
+            f0 = window[i] * buffer[chn][bufPos + i];
+            w = window[i + 0x200] * buffer[chn][bufPos + i + 0x200];
+            f1 = f0 - w;
+            f0 = f0 + w;
+            f2 = window[i + 0x100] * buffer[chn][bufPos + i + 0x100];
+            w = window[i + 0x300] * buffer[chn][bufPos + i + 0x300];
+            f3 = f2 - w;
+            f2 = f2 + w;
+
+            x -= 4;
+            y[x + 0] = f0 + f2;
+            y[x + 2] = f0 - f2;
+            y[x + 1] = f1 + f3;
+            y[x + 3] = f1 - f3;
+
+            f0 = window[i + 0x001] * buffer[chn][bufPos + i + 0x001];
+            w = window[i + 0x201] * buffer[chn][bufPos + i + 0x201];
+            f1 = f0 - w;
+            f0 = f0 + w;
+            f2 = window[i + 0x101] * buffer[chn][bufPos + i + 0x101];
+            w = window[i + 0x301] * buffer[chn][bufPos + i + 0x301];
+            f3 = f2 - w;
+            f2 = f2 + w;
+
+            y[x + Encoder.BLKSIZE / 2 + 0] = f0 + f2;
+            y[x + Encoder.BLKSIZE / 2 + 2] = f0 - f2;
+            y[x + Encoder.BLKSIZE / 2 + 1] = f1 + f3;
+            y[x + Encoder.BLKSIZE / 2 + 3] = f1 - f3;
+        } while (--jj >= 0);
+
+        fht(y, x, Encoder.BLKSIZE / 2);
+        /* BLKSIZE/2 because of 3DNow! ASM routine */
+    }
+
+    this.init_fft = function (gfc) {
+        /* The type of window used here will make no real difference, but */
+        /*
+         * in the interest of merging nspsytune stuff - switch to blackman
+         * window
+         */
+        for (var i = 0; i < Encoder.BLKSIZE; i++)
+            /* blackman window */
+            window[i] = (0.42 - 0.5 * Math.cos(2 * Math.PI * (i + .5)
+                / Encoder.BLKSIZE) + 0.08 * Math.cos(4 * Math.PI * (i + .5)
+                / Encoder.BLKSIZE));
+
+        for (var i = 0; i < Encoder.BLKSIZE_s / 2; i++)
+            window_s[i] = (0.5 * (1.0 - Math.cos(2.0 * Math.PI
+                * (i + 0.5) / Encoder.BLKSIZE_s)));
+
+    }
+
+}
+
+/*
+ *      psymodel.c
+ *
+ *      Copyright (c) 1999-2000 Mark Taylor
+ *      Copyright (c) 2001-2002 Naoki Shibata
+ *      Copyright (c) 2000-2003 Takehiro Tominaga
+ *      Copyright (c) 2000-2008 Robert Hegemann
+ *      Copyright (c) 2000-2005 Gabriel Bouvigne
+ *      Copyright (c) 2000-2005 Alexander Leidinger
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/* $Id: PsyModel.java,v 1.27 2011/05/24 20:48:06 kenchis Exp $ */
+
+
+/*
+ PSYCHO ACOUSTICS
+
+
+ This routine computes the psycho acoustics, delayed by one granule.
+
+ Input: buffer of PCM data (1024 samples).
+
+ This window should be centered over the 576 sample granule window.
+ The routine will compute the psycho acoustics for
+ this granule, but return the psycho acoustics computed
+ for the *previous* granule.  This is because the block
+ type of the previous granule can only be determined
+ after we have computed the psycho acoustics for the following
+ granule.
+
+ Output:  maskings and energies for each scalefactor band.
+ block type, PE, and some correlation measures.
+ The PE is used by CBR modes to determine if extra bits
+ from the bit reservoir should be used.  The correlation
+ measures are used to determine mid/side or regular stereo.
+ */
+/*
+ Notation:
+
+ barks:  a non-linear frequency scale.  Mapping from frequency to
+ barks is given by freq2bark()
+
+ scalefactor bands: The spectrum (frequencies) are broken into
+ SBMAX "scalefactor bands".  Thes bands
+ are determined by the MPEG ISO spec.  In
+ the noise shaping/quantization code, we allocate
+ bits among the partition bands to achieve the
+ best possible quality
+
+ partition bands:   The spectrum is also broken into about
+ 64 "partition bands".  Each partition
+ band is about .34 barks wide.  There are about 2-5
+ partition bands for each scalefactor band.
+
+ LAME computes all psycho acoustic information for each partition
+ band.  Then at the end of the computations, this information
+ is mapped to scalefactor bands.  The energy in each scalefactor
+ band is taken as the sum of the energy in all partition bands
+ which overlap the scalefactor band.  The maskings can be computed
+ in the same way (and thus represent the average masking in that band)
+ or by taking the minmum value multiplied by the number of
+ partition bands used (which represents a minimum masking in that band).
+ */
+/*
+ The general outline is as follows:
+
+ 1. compute the energy in each partition band
+ 2. compute the tonality in each partition band
+ 3. compute the strength of each partion band "masker"
+ 4. compute the masking (via the spreading function applied to each masker)
+ 5. Modifications for mid/side masking.
+
+ Each partition band is considiered a "masker".  The strength
+ of the i'th masker in band j is given by:
+
+ s3(bark(i)-bark(j))*strength(i)
+
+ The strength of the masker is a function of the energy and tonality.
+ The more tonal, the less masking.  LAME uses a simple linear formula
+ (controlled by NMT and TMN) which says the strength is given by the
+ energy divided by a linear function of the tonality.
+ */
+/*
+ s3() is the "spreading function".  It is given by a formula
+ determined via listening tests.
+
+ The total masking in the j'th partition band is the sum over
+ all maskings i.  It is thus given by the convolution of
+ the strength with s3(), the "spreading function."
+
+ masking(j) = sum_over_i  s3(i-j)*strength(i)  = s3 o strength
+
+ where "o" = convolution operator.  s3 is given by a formula determined
+ via listening tests.  It is normalized so that s3 o 1 = 1.
+
+ Note: instead of a simple convolution, LAME also has the
+ option of using "additive masking"
+
+ The most critical part is step 2, computing the tonality of each
+ partition band.  LAME has two tonality estimators.  The first
+ is based on the ISO spec, and measures how predictiable the
+ signal is over time.  The more predictable, the more tonal.
+ The second measure is based on looking at the spectrum of
+ a single granule.  The more peaky the spectrum, the more
+ tonal.  By most indications, the latter approach is better.
+
+ Finally, in step 5, the maskings for the mid and side
+ channel are possibly increased.  Under certain circumstances,
+ noise in the mid & side channels is assumed to also
+ be masked by strong maskers in the L or R channels.
+
+
+ Other data computed by the psy-model:
+
+ ms_ratio        side-channel / mid-channel masking ratio (for previous granule)
+ ms_ratio_next   side-channel / mid-channel masking ratio for this granule
+
+ percep_entropy[2]     L and R values (prev granule) of PE - A measure of how
+ much pre-echo is in the previous granule
+ percep_entropy_MS[2]  mid and side channel values (prev granule) of percep_entropy
+ energy[4]             L,R,M,S energy in each channel, prev granule
+ blocktype_d[2]        block type to use for previous granule
+ */
+//package mp3;
+
+//import java.util.Arrays;
+
+
+function PsyModel() {
+
+    var fft = new FFT();
+
+    var LOG10 = 2.30258509299404568402;
+
+    var rpelev = 2;
+    var rpelev2 = 16;
+    var rpelev_s = 2;
+    var rpelev2_s = 16;
+
+    /* size of each partition band, in barks: */
+    var DELBARK = .34;
+
+    /* tuned for output level (sensitive to energy scale) */
+    var VO_SCALE = (1. / (14752 * 14752) / (Encoder.BLKSIZE / 2));
+
+    var temporalmask_sustain_sec = 0.01;
+
+    var NS_PREECHO_ATT0 = 0.8;
+    var NS_PREECHO_ATT1 = 0.6;
+    var NS_PREECHO_ATT2 = 0.3;
+
+    var NS_MSFIX = 3.5;
+
+    var NSATTACKTHRE = 4.4;
+    var NSATTACKTHRE_S = 25;
+
+    var NSFIRLEN = 21;
+
+    /* size of each partition band, in barks: */
+    var LN_TO_LOG10 = 0.2302585093;
+
+    function NON_LINEAR_SCALE_ENERGY(x) {
+        return x;
+    }
+
+    /**
+     * <PRE>
+     *       L3psycho_anal.  Compute psycho acoustics.
+     *
+     *       Data returned to the calling program must be delayed by one
+     *       granule.
+     *
+     *       This is done in two places.
+     *       If we do not need to know the blocktype, the copying
+     *       can be done here at the top of the program: we copy the data for
+     *       the last granule (computed during the last call) before it is
+     *       overwritten with the new data.  It looks like this:
+     *
+     *       0. static psymodel_data
+     *       1. calling_program_data = psymodel_data
+     *       2. compute psymodel_data
+     *
+     *       For data which needs to know the blocktype, the copying must be
+     *       done at the end of this loop, and the old values must be saved:
+     *
+     *       0. static psymodel_data_old
+     *       1. compute psymodel_data
+     *       2. compute possible block type of this granule
+     *       3. compute final block type of previous granule based on #2.
+     *       4. calling_program_data = psymodel_data_old
+     *       5. psymodel_data_old = psymodel_data
+     *     psycho_loudness_approx
+     *       jd - 2001 mar 12
+     *    in:  energy   - BLKSIZE/2 elements of frequency magnitudes ^ 2
+     *         gfp      - uses out_samplerate, ATHtype (also needed for ATHformula)
+     *    returns: loudness^2 approximation, a positive value roughly tuned for a value
+     *             of 1.0 for signals near clipping.
+     *    notes:   When calibrated, feeding this function binary white noise at sample
+     *             values +32767 or -32768 should return values that approach 3.
+     *             ATHformula is used to approximate an equal loudness curve.
+     *    future:  Data indicates that the shape of the equal loudness curve varies
+     *             with intensity.  This function might be improved by using an equal
+     *             loudness curve shaped for typical playback levels (instead of the
+     *             ATH, that is shaped for the threshold).  A flexible realization might
+     *             simply bend the existing ATH curve to achieve the desired shape.
+     *             However, the potential gain may not be enough to justify an effort.
+     * </PRE>
+     */
+    function psycho_loudness_approx(energy, gfc) {
+        var loudness_power = 0.0;
+        /* apply weights to power in freq. bands */
+        for (var i = 0; i < Encoder.BLKSIZE / 2; ++i)
+            loudness_power += energy[i] * gfc.ATH.eql_w[i];
+        loudness_power *= VO_SCALE;
+
+        return loudness_power;
+    }
+
+    function compute_ffts(gfp, fftenergy, fftenergy_s, wsamp_l, wsamp_lPos, wsamp_s, wsamp_sPos, gr_out, chn, buffer, bufPos) {
+        var gfc = gfp.internal_flags;
+        if (chn < 2) {
+            fft.fft_long(gfc, wsamp_l[wsamp_lPos], chn, buffer, bufPos);
+            fft.fft_short(gfc, wsamp_s[wsamp_sPos], chn, buffer, bufPos);
+        }
+        /* FFT data for mid and side channel is derived from L & R */
+        else if (chn == 2) {
+            for (var j = Encoder.BLKSIZE - 1; j >= 0; --j) {
+                var l = wsamp_l[wsamp_lPos + 0][j];
+                var r = wsamp_l[wsamp_lPos + 1][j];
+                wsamp_l[wsamp_lPos + 0][j] = (l + r) * Util.SQRT2 * 0.5;
+                wsamp_l[wsamp_lPos + 1][j] = (l - r) * Util.SQRT2 * 0.5;
+            }
+            for (var b = 2; b >= 0; --b) {
+                for (var j = Encoder.BLKSIZE_s - 1; j >= 0; --j) {
+                    var l = wsamp_s[wsamp_sPos + 0][b][j];
+                    var r = wsamp_s[wsamp_sPos + 1][b][j];
+                    wsamp_s[wsamp_sPos + 0][b][j] = (l + r) * Util.SQRT2 * 0.5;
+                    wsamp_s[wsamp_sPos + 1][b][j] = (l - r) * Util.SQRT2 * 0.5;
+                }
+            }
+        }
+
+        /*********************************************************************
+         * compute energies
+         *********************************************************************/
+        fftenergy[0] = NON_LINEAR_SCALE_ENERGY(wsamp_l[wsamp_lPos + 0][0]);
+        fftenergy[0] *= fftenergy[0];
+
+        for (var j = Encoder.BLKSIZE / 2 - 1; j >= 0; --j) {
+            var re = (wsamp_l[wsamp_lPos + 0])[Encoder.BLKSIZE / 2 - j];
+            var im = (wsamp_l[wsamp_lPos + 0])[Encoder.BLKSIZE / 2 + j];
+            fftenergy[Encoder.BLKSIZE / 2 - j] = NON_LINEAR_SCALE_ENERGY((re
+                * re + im * im) * 0.5);
+        }
+        for (var b = 2; b >= 0; --b) {
+            fftenergy_s[b][0] = (wsamp_s[wsamp_sPos + 0])[b][0];
+            fftenergy_s[b][0] *= fftenergy_s[b][0];
+            for (var j = Encoder.BLKSIZE_s / 2 - 1; j >= 0; --j) {
+                var re = (wsamp_s[wsamp_sPos + 0])[b][Encoder.BLKSIZE_s
+                / 2 - j];
+                var im = (wsamp_s[wsamp_sPos + 0])[b][Encoder.BLKSIZE_s
+                / 2 + j];
+                fftenergy_s[b][Encoder.BLKSIZE_s / 2 - j] = NON_LINEAR_SCALE_ENERGY((re
+                    * re + im * im) * 0.5);
+            }
+        }
+        /* total energy */
+        {
+            var totalenergy = 0.0;
+            for (var j = 11; j < Encoder.HBLKSIZE; j++)
+                totalenergy += fftenergy[j];
+
+            gfc.tot_ener[chn] = totalenergy;
+        }
+
+        if (gfp.analysis) {
+            for (var j = 0; j < Encoder.HBLKSIZE; j++) {
+                gfc.pinfo.energy[gr_out][chn][j] = gfc.pinfo.energy_save[chn][j];
+                gfc.pinfo.energy_save[chn][j] = fftenergy[j];
+            }
+            gfc.pinfo.pe[gr_out][chn] = gfc.pe[chn];
+        }
+
+        /*********************************************************************
+         * compute loudness approximation (used for ATH auto-level adjustment)
+         *********************************************************************/
+        if (gfp.athaa_loudapprox == 2 && chn < 2) {
+            // no loudness for mid/side ch
+            gfc.loudness_sq[gr_out][chn] = gfc.loudness_sq_save[chn];
+            gfc.loudness_sq_save[chn] = psycho_loudness_approx(fftenergy, gfc);
+        }
+    }
+
+    /* mask_add optimization */
+    /* init the limit values used to avoid computing log in mask_add when it is not necessary */
+
+    /**
+     * <PRE>
+     *  For example, with i = 10*log10(m2/m1)/10*16         (= log10(m2/m1)*16)
+     *
+     * abs(i)>8 is equivalent (as i is an integer) to
+     * abs(i)>=9
+     * i>=9 || i<=-9
+     * equivalent to (as i is the biggest integer smaller than log10(m2/m1)*16
+     * or the smallest integer bigger than log10(m2/m1)*16 depending on the sign of log10(m2/m1)*16)
+     * log10(m2/m1)>=9/16 || log10(m2/m1)<=-9/16
+     * exp10 is strictly increasing thus this is equivalent to
+     * m2/m1 >= 10^(9/16) || m2/m1<=10^(-9/16) which are comparisons to constants
+     * </PRE>
+     */
+
+    /**
+     * as in if(i>8)
+     */
+    var I1LIMIT = 8;
+    /**
+     * as in if(i>24) . changed 23
+     */
+    var I2LIMIT = 23;
+    /**
+     * as in if(m<15)
+     */
+    var MLIMIT = 15;
+
+    var ma_max_i1;
+    var ma_max_i2;
+    var ma_max_m;
+
+    /**
+     * This is the masking table:<BR>
+     * According to tonality, values are going from 0dB (TMN) to 9.3dB (NMT).<BR>
+     * After additive masking computation, 8dB are added, so final values are
+     * going from 8dB to 17.3dB
+     *
+     * pow(10, -0.0..-0.6)
+     */
+    var tab = [1.0, 0.79433, 0.63096, 0.63096,
+        0.63096, 0.63096, 0.63096, 0.25119, 0.11749];
+
+    function init_mask_add_max_values() {
+        ma_max_i1 = Math.pow(10, (I1LIMIT + 1) / 16.0);
+        ma_max_i2 = Math.pow(10, (I2LIMIT + 1) / 16.0);
+        ma_max_m = Math.pow(10, (MLIMIT) / 10.0);
+    }
+
+    var table1 = [3.3246 * 3.3246,
+        3.23837 * 3.23837, 3.15437 * 3.15437, 3.00412 * 3.00412,
+        2.86103 * 2.86103, 2.65407 * 2.65407, 2.46209 * 2.46209,
+        2.284 * 2.284, 2.11879 * 2.11879, 1.96552 * 1.96552,
+        1.82335 * 1.82335, 1.69146 * 1.69146, 1.56911 * 1.56911,
+        1.46658 * 1.46658, 1.37074 * 1.37074, 1.31036 * 1.31036,
+        1.25264 * 1.25264, 1.20648 * 1.20648, 1.16203 * 1.16203,
+        1.12765 * 1.12765, 1.09428 * 1.09428, 1.0659 * 1.0659,
+        1.03826 * 1.03826, 1.01895 * 1.01895, 1];
+
+    var table2 = [1.33352 * 1.33352,
+        1.35879 * 1.35879, 1.38454 * 1.38454, 1.39497 * 1.39497,
+        1.40548 * 1.40548, 1.3537 * 1.3537, 1.30382 * 1.30382,
+        1.22321 * 1.22321, 1.14758 * 1.14758, 1];
+
+    var table3 = [2.35364 * 2.35364,
+        2.29259 * 2.29259, 2.23313 * 2.23313, 2.12675 * 2.12675,
+        2.02545 * 2.02545, 1.87894 * 1.87894, 1.74303 * 1.74303,
+        1.61695 * 1.61695, 1.49999 * 1.49999, 1.39148 * 1.39148,
+        1.29083 * 1.29083, 1.19746 * 1.19746, 1.11084 * 1.11084,
+        1.03826 * 1.03826];
+
+    /**
+     * addition of simultaneous masking Naoki Shibata 2000/7
+     */
+    function mask_add(m1, m2, kk, b, gfc, shortblock) {
+        var ratio;
+
+        if (m2 > m1) {
+            if (m2 < (m1 * ma_max_i2))
+                ratio = m2 / m1;
+            else
+                return (m1 + m2);
+        } else {
+            if (m1 >= (m2 * ma_max_i2))
+                return (m1 + m2);
+            ratio = m1 / m2;
+        }
+
+        /* Should always be true, just checking */
+
+        m1 += m2;
+        //if (((long)(b + 3) & 0xffffffff) <= 3 + 3) {
+        if ((b + 3) <= 3 + 3) {
+            /* approximately, 1 bark = 3 partitions */
+            /* 65% of the cases */
+            /* originally 'if(i > 8)' */
+            if (ratio >= ma_max_i1) {
+                /* 43% of the total */
+                return m1;
+            }
+
+            /* 22% of the total */
+            var i = 0 | (Util.FAST_LOG10_X(ratio, 16.0));
+            return m1 * table2[i];
+        }
+
+        /**
+         * <PRE>
+         * m<15 equ log10((m1+m2)/gfc.ATH.cb[k])<1.5
+         * equ (m1+m2)/gfc.ATH.cb[k]<10^1.5
+         * equ (m1+m2)<10^1.5 * gfc.ATH.cb[k]
+         * </PRE>
+         */
+        var i = 0 | Util.FAST_LOG10_X(ratio, 16.0);
+        if (shortblock != 0) {
+            m2 = gfc.ATH.cb_s[kk] * gfc.ATH.adjust;
+        } else {
+            m2 = gfc.ATH.cb_l[kk] * gfc.ATH.adjust;
+        }
+        if (m1 < ma_max_m * m2) {
+            /* 3% of the total */
+            /* Originally if (m > 0) { */
+            if (m1 > m2) {
+                var f, r;
+
+                f = 1.0;
+                if (i <= 13)
+                    f = table3[i];
+
+                r = Util.FAST_LOG10_X(m1 / m2, 10.0 / 15.0);
+                return m1 * ((table1[i] - f) * r + f);
+            }
+
+            if (i > 13)
+                return m1;
+
+            return m1 * table3[i];
+        }
+
+        /* 10% of total */
+        return m1 * table1[i];
+    }
+
+    var table2_ = [1.33352 * 1.33352,
+        1.35879 * 1.35879, 1.38454 * 1.38454, 1.39497 * 1.39497,
+        1.40548 * 1.40548, 1.3537 * 1.3537, 1.30382 * 1.30382,
+        1.22321 * 1.22321, 1.14758 * 1.14758, 1];
+
+    /**
+     * addition of simultaneous masking Naoki Shibata 2000/7
+     */
+    function vbrpsy_mask_add(m1, m2, b) {
+        var ratio;
+
+        if (m1 < 0) {
+            m1 = 0;
+        }
+        if (m2 < 0) {
+            m2 = 0;
+        }
+        if (m1 <= 0) {
+            return m2;
+        }
+        if (m2 <= 0) {
+            return m1;
+        }
+        if (m2 > m1) {
+            ratio = m2 / m1;
+        } else {
+            ratio = m1 / m2;
+        }
+        if (-2 <= b && b <= 2) {
+            /* approximately, 1 bark = 3 partitions */
+            /* originally 'if(i > 8)' */
+            if (ratio >= ma_max_i1) {
+                return m1 + m2;
+            } else {
+                var i = 0 | (Util.FAST_LOG10_X(ratio, 16.0));
+                return (m1 + m2) * table2_[i];
+            }
+        }
+        if (ratio < ma_max_i2) {
+            return m1 + m2;
+        }
+        if (m1 < m2) {
+            m1 = m2;
+        }
+        return m1;
+    }
+
+    /**
+     * compute interchannel masking effects
+     */
+    function calc_interchannel_masking(gfp, ratio) {
+        var gfc = gfp.internal_flags;
+        if (gfc.channels_out > 1) {
+            for (var sb = 0; sb < Encoder.SBMAX_l; sb++) {
+                var l = gfc.thm[0].l[sb];
+                var r = gfc.thm[1].l[sb];
+                gfc.thm[0].l[sb] += r * ratio;
+                gfc.thm[1].l[sb] += l * ratio;
+            }
+            for (var sb = 0; sb < Encoder.SBMAX_s; sb++) {
+                for (var sblock = 0; sblock < 3; sblock++) {
+                    var l = gfc.thm[0].s[sb][sblock];
+                    var r = gfc.thm[1].s[sb][sblock];
+                    gfc.thm[0].s[sb][sblock] += r * ratio;
+                    gfc.thm[1].s[sb][sblock] += l * ratio;
+                }
+            }
+        }
+    }
+
+    /**
+     * compute M/S thresholds from Johnston & Ferreira 1992 ICASSP paper
+     */
+    function msfix1(gfc) {
+        for (var sb = 0; sb < Encoder.SBMAX_l; sb++) {
+            /* use this fix if L & R masking differs by 2db or less */
+            /* if db = 10*log10(x2/x1) < 2 */
+            /* if (x2 < 1.58*x1) { */
+            if (gfc.thm[0].l[sb] > 1.58 * gfc.thm[1].l[sb]
+                || gfc.thm[1].l[sb] > 1.58 * gfc.thm[0].l[sb])
+                continue;
+            var mld = gfc.mld_l[sb] * gfc.en[3].l[sb];
+            var rmid = Math.max(gfc.thm[2].l[sb],
+                Math.min(gfc.thm[3].l[sb], mld));
+
+            mld = gfc.mld_l[sb] * gfc.en[2].l[sb];
+            var rside = Math.max(gfc.thm[3].l[sb],
+                Math.min(gfc.thm[2].l[sb], mld));
+            gfc.thm[2].l[sb] = rmid;
+            gfc.thm[3].l[sb] = rside;
+        }
+
+        for (var sb = 0; sb < Encoder.SBMAX_s; sb++) {
+            for (var sblock = 0; sblock < 3; sblock++) {
+                if (gfc.thm[0].s[sb][sblock] > 1.58 * gfc.thm[1].s[sb][sblock]
+                    || gfc.thm[1].s[sb][sblock] > 1.58 * gfc.thm[0].s[sb][sblock])
+                    continue;
+                var mld = gfc.mld_s[sb] * gfc.en[3].s[sb][sblock];
+                var rmid = Math.max(gfc.thm[2].s[sb][sblock],
+                    Math.min(gfc.thm[3].s[sb][sblock], mld));
+
+                mld = gfc.mld_s[sb] * gfc.en[2].s[sb][sblock];
+                var rside = Math.max(gfc.thm[3].s[sb][sblock],
+                    Math.min(gfc.thm[2].s[sb][sblock], mld));
+
+                gfc.thm[2].s[sb][sblock] = rmid;
+                gfc.thm[3].s[sb][sblock] = rside;
+            }
+        }
+    }
+
+    /**
+     * Adjust M/S maskings if user set "msfix"
+     *
+     * Naoki Shibata 2000
+     */
+    function ns_msfix(gfc, msfix, athadjust) {
+        var msfix2 = msfix;
+        var athlower = Math.pow(10, athadjust);
+
+        msfix *= 2.0;
+        msfix2 *= 2.0;
+        for (var sb = 0; sb < Encoder.SBMAX_l; sb++) {
+            var thmLR, thmM, thmS, ath;
+            ath = (gfc.ATH.cb_l[gfc.bm_l[sb]]) * athlower;
+            thmLR = Math.min(Math.max(gfc.thm[0].l[sb], ath),
+                Math.max(gfc.thm[1].l[sb], ath));
+            thmM = Math.max(gfc.thm[2].l[sb], ath);
+            thmS = Math.max(gfc.thm[3].l[sb], ath);
+            if (thmLR * msfix < thmM + thmS) {
+                var f = thmLR * msfix2 / (thmM + thmS);
+                thmM *= f;
+                thmS *= f;
+            }
+            gfc.thm[2].l[sb] = Math.min(thmM, gfc.thm[2].l[sb]);
+            gfc.thm[3].l[sb] = Math.min(thmS, gfc.thm[3].l[sb]);
+        }
+
+        athlower *= ( Encoder.BLKSIZE_s / Encoder.BLKSIZE);
+        for (var sb = 0; sb < Encoder.SBMAX_s; sb++) {
+            for (var sblock = 0; sblock < 3; sblock++) {
+                var thmLR, thmM, thmS, ath;
+                ath = (gfc.ATH.cb_s[gfc.bm_s[sb]]) * athlower;
+                thmLR = Math.min(Math.max(gfc.thm[0].s[sb][sblock], ath),
+                    Math.max(gfc.thm[1].s[sb][sblock], ath));
+                thmM = Math.max(gfc.thm[2].s[sb][sblock], ath);
+                thmS = Math.max(gfc.thm[3].s[sb][sblock], ath);
+
+                if (thmLR * msfix < thmM + thmS) {
+                    var f = thmLR * msfix / (thmM + thmS);
+                    thmM *= f;
+                    thmS *= f;
+                }
+                gfc.thm[2].s[sb][sblock] = Math.min(gfc.thm[2].s[sb][sblock],
+                    thmM);
+                gfc.thm[3].s[sb][sblock] = Math.min(gfc.thm[3].s[sb][sblock],
+                    thmS);
+            }
+        }
+    }
+
+    /**
+     * short block threshold calculation (part 2)
+     *
+     * partition band bo_s[sfb] is at the transition from scalefactor band sfb
+     * to the next one sfb+1; enn and thmm have to be split between them
+     */
+    function convert_partition2scalefac_s(gfc, eb, thr, chn, sblock) {
+        var sb, b;
+        var enn = 0.0;
+        var thmm = 0.0;
+        for (sb = b = 0; sb < Encoder.SBMAX_s; ++b, ++sb) {
+            var bo_s_sb = gfc.bo_s[sb];
+            var npart_s = gfc.npart_s;
+            var b_lim = bo_s_sb < npart_s ? bo_s_sb : npart_s;
+            while (b < b_lim) {
+                // iff failed, it may indicate some index error elsewhere
+                enn += eb[b];
+                thmm += thr[b];
+                b++;
+            }
+            gfc.en[chn].s[sb][sblock] = enn;
+            gfc.thm[chn].s[sb][sblock] = thmm;
+
+            if (b >= npart_s) {
+                ++sb;
+                break;
+            }
+            // iff failed, it may indicate some index error elsewhere
+            {
+                /* at transition sfb . sfb+1 */
+                var w_curr = gfc.PSY.bo_s_weight[sb];
+                var w_next = 1.0 - w_curr;
+                enn = w_curr * eb[b];
+                thmm = w_curr * thr[b];
+                gfc.en[chn].s[sb][sblock] += enn;
+                gfc.thm[chn].s[sb][sblock] += thmm;
+                enn = w_next * eb[b];
+                thmm = w_next * thr[b];
+            }
+        }
+        /* zero initialize the rest */
+        for (; sb < Encoder.SBMAX_s; ++sb) {
+            gfc.en[chn].s[sb][sblock] = 0;
+            gfc.thm[chn].s[sb][sblock] = 0;
+        }
+    }
+
+    /**
+     * longblock threshold calculation (part 2)
+     */
+    function convert_partition2scalefac_l(gfc, eb, thr, chn) {
+        var sb, b;
+        var enn = 0.0;
+        var thmm = 0.0;
+        for (sb = b = 0; sb < Encoder.SBMAX_l; ++b, ++sb) {
+            var bo_l_sb = gfc.bo_l[sb];
+            var npart_l = gfc.npart_l;
+            var b_lim = bo_l_sb < npart_l ? bo_l_sb : npart_l;
+            while (b < b_lim) {
+                // iff failed, it may indicate some index error elsewhere
+                enn += eb[b];
+                thmm += thr[b];
+                b++;
+            }
+            gfc.en[chn].l[sb] = enn;
+            gfc.thm[chn].l[sb] = thmm;
+
+            if (b >= npart_l) {
+                ++sb;
+                break;
+            }
+            {
+                /* at transition sfb . sfb+1 */
+                var w_curr = gfc.PSY.bo_l_weight[sb];
+                var w_next = 1.0 - w_curr;
+                enn = w_curr * eb[b];
+                thmm = w_curr * thr[b];
+                gfc.en[chn].l[sb] += enn;
+                gfc.thm[chn].l[sb] += thmm;
+                enn = w_next * eb[b];
+                thmm = w_next * thr[b];
+            }
+        }
+        /* zero initialize the rest */
+        for (; sb < Encoder.SBMAX_l; ++sb) {
+            gfc.en[chn].l[sb] = 0;
+            gfc.thm[chn].l[sb] = 0;
+        }
+    }
+
+    function compute_masking_s(gfp, fftenergy_s, eb, thr, chn, sblock) {
+        var gfc = gfp.internal_flags;
+        var j, b;
+
+        for (b = j = 0; b < gfc.npart_s; ++b) {
+            var ebb = 0, m = 0;
+            var n = gfc.numlines_s[b];
+            for (var i = 0; i < n; ++i, ++j) {
+                var el = fftenergy_s[sblock][j];
+                ebb += el;
+                if (m < el)
+                    m = el;
+            }
+            eb[b] = ebb;
+        }
+        for (j = b = 0; b < gfc.npart_s; b++) {
+            var kk = gfc.s3ind_s[b][0];
+            var ecb = gfc.s3_ss[j++] * eb[kk];
+            ++kk;
+            while (kk <= gfc.s3ind_s[b][1]) {
+                ecb += gfc.s3_ss[j] * eb[kk];
+                ++j;
+                ++kk;
+            }
+
+            { /* limit calculated threshold by previous granule */
+                var x = rpelev_s * gfc.nb_s1[chn][b];
+                thr[b] = Math.min(ecb, x);
+            }
+            if (gfc.blocktype_old[chn & 1] == Encoder.SHORT_TYPE) {
+                /* limit calculated threshold by even older granule */
+                var x = rpelev2_s * gfc.nb_s2[chn][b];
+                var y = thr[b];
+                thr[b] = Math.min(x, y);
+            }
+
+            gfc.nb_s2[chn][b] = gfc.nb_s1[chn][b];
+            gfc.nb_s1[chn][b] = ecb;
+        }
+        for (; b <= Encoder.CBANDS; ++b) {
+            eb[b] = 0;
+            thr[b] = 0;
+        }
+    }
+
+    function block_type_set(gfp, uselongblock, blocktype_d, blocktype) {
+        var gfc = gfp.internal_flags;
+
+        if (gfp.short_blocks == ShortBlock.short_block_coupled
+                /* force both channels to use the same block type */
+                /* this is necessary if the frame is to be encoded in ms_stereo. */
+                /* But even without ms_stereo, FhG does this */
+            && !(uselongblock[0] != 0 && uselongblock[1] != 0))
+            uselongblock[0] = uselongblock[1] = 0;
+
+        /*
+         * update the blocktype of the previous granule, since it depends on
+         * what happend in this granule
+         */
+        for (var chn = 0; chn < gfc.channels_out; chn++) {
+            blocktype[chn] = Encoder.NORM_TYPE;
+            /* disable short blocks */
+            if (gfp.short_blocks == ShortBlock.short_block_dispensed)
+                uselongblock[chn] = 1;
+            if (gfp.short_blocks == ShortBlock.short_block_forced)
+                uselongblock[chn] = 0;
+
+            if (uselongblock[chn] != 0) {
+                /* no attack : use long blocks */
+                if (gfc.blocktype_old[chn] == Encoder.SHORT_TYPE)
+                    blocktype[chn] = Encoder.STOP_TYPE;
+            } else {
+                /* attack : use short blocks */
+                blocktype[chn] = Encoder.SHORT_TYPE;
+                if (gfc.blocktype_old[chn] == Encoder.NORM_TYPE) {
+                    gfc.blocktype_old[chn] = Encoder.START_TYPE;
+                }
+                if (gfc.blocktype_old[chn] == Encoder.STOP_TYPE)
+                    gfc.blocktype_old[chn] = Encoder.SHORT_TYPE;
+            }
+
+            blocktype_d[chn] = gfc.blocktype_old[chn];
+            // value returned to calling program
+            gfc.blocktype_old[chn] = blocktype[chn];
+            // save for next call to l3psy_anal
+        }
+    }
+
+    function NS_INTERP(x, y, r) {
+        /* was pow((x),(r))*pow((y),1-(r)) */
+        if (r >= 1.0) {
+            /* 99.7% of the time */
+            return x;
+        }
+        if (r <= 0.0)
+            return y;
+        if (y > 0.0) {
+            /* rest of the time */
+            return (Math.pow(x / y, r) * y);
+        }
+        /* never happens */
+        return 0.0;
+    }
+
+    /**
+     * these values are tuned only for 44.1kHz...
+     */
+    var regcoef_s = [11.8, 13.6, 17.2, 32, 46.5,
+        51.3, 57.5, 67.1, 71.5, 84.6, 97.6, 130,
+        /* 255.8 */
+    ];
+
+    function pecalc_s(mr, masking_lower) {
+        var pe_s = 1236.28 / 4;
+        for (var sb = 0; sb < Encoder.SBMAX_s - 1; sb++) {
+            for (var sblock = 0; sblock < 3; sblock++) {
+                var thm = mr.thm.s[sb][sblock];
+                if (thm > 0.0) {
+                    var x = thm * masking_lower;
+                    var en = mr.en.s[sb][sblock];
+                    if (en > x) {
+                        if (en > x * 1e10) {
+                            pe_s += regcoef_s[sb] * (10.0 * LOG10);
+                        } else {
+                            pe_s += regcoef_s[sb] * Util.FAST_LOG10(en / x);
+                        }
+                    }
+                }
+            }
+        }
+
+        return pe_s;
+    }
+
+    /**
+     * these values are tuned only for 44.1kHz...
+     */
+    var regcoef_l = [6.8, 5.8, 5.8, 6.4, 6.5, 9.9,
+        12.1, 14.4, 15, 18.9, 21.6, 26.9, 34.2, 40.2, 46.8, 56.5,
+        60.7, 73.9, 85.7, 93.4, 126.1,
+        /* 241.3 */
+    ];
+
+    function pecalc_l(mr, masking_lower) {
+        var pe_l = 1124.23 / 4;
+        for (var sb = 0; sb < Encoder.SBMAX_l - 1; sb++) {
+            var thm = mr.thm.l[sb];
+            if (thm > 0.0) {
+                var x = thm * masking_lower;
+                var en = mr.en.l[sb];
+                if (en > x) {
+                    if (en > x * 1e10) {
+                        pe_l += regcoef_l[sb] * (10.0 * LOG10);
+                    } else {
+                        pe_l += regcoef_l[sb] * Util.FAST_LOG10(en / x);
+                    }
+                }
+            }
+        }
+        return pe_l;
+    }
+
+    function calc_energy(gfc, fftenergy, eb, max, avg) {
+        var b, j;
+
+        for (b = j = 0; b < gfc.npart_l; ++b) {
+            var ebb = 0, m = 0;
+            var i;
+            for (i = 0; i < gfc.numlines_l[b]; ++i, ++j) {
+                var el = fftenergy[j];
+                ebb += el;
+                if (m < el)
+                    m = el;
+            }
+            eb[b] = ebb;
+            max[b] = m;
+            avg[b] = ebb * gfc.rnumlines_l[b];
+        }
+    }
+
+    function calc_mask_index_l(gfc, max, avg, mask_idx) {
+        var last_tab_entry = tab.length - 1;
+        var b = 0;
+        var a = avg[b] + avg[b + 1];
+        if (a > 0.0) {
+            var m = max[b];
+            if (m < max[b + 1])
+                m = max[b + 1];
+            a = 20.0 * (m * 2.0 - a)
+                / (a * (gfc.numlines_l[b] + gfc.numlines_l[b + 1] - 1));
+            var k = 0 | a;
+            if (k > last_tab_entry)
+                k = last_tab_entry;
+            mask_idx[b] = k;
+        } else {
+            mask_idx[b] = 0;
+        }
+
+        for (b = 1; b < gfc.npart_l - 1; b++) {
+            a = avg[b - 1] + avg[b] + avg[b + 1];
+            if (a > 0.0) {
+                var m = max[b - 1];
+                if (m < max[b])
+                    m = max[b];
+                if (m < max[b + 1])
+                    m = max[b + 1];
+                a = 20.0
+                    * (m * 3.0 - a)
+                    / (a * (gfc.numlines_l[b - 1] + gfc.numlines_l[b]
+                    + gfc.numlines_l[b + 1] - 1));
+                var k = 0 | a;
+                if (k > last_tab_entry)
+                    k = last_tab_entry;
+                mask_idx[b] = k;
+            } else {
+                mask_idx[b] = 0;
+            }
+        }
+
+        a = avg[b - 1] + avg[b];
+        if (a > 0.0) {
+            var m = max[b - 1];
+            if (m < max[b])
+                m = max[b];
+            a = 20.0 * (m * 2.0 - a)
+                / (a * (gfc.numlines_l[b - 1] + gfc.numlines_l[b] - 1));
+            var k = 0 | a;
+            if (k > last_tab_entry)
+                k = last_tab_entry;
+            mask_idx[b] = k;
+        } else {
+            mask_idx[b] = 0;
+        }
+    }
+
+    var fircoef = [
+        -8.65163e-18 * 2, -0.00851586 * 2, -6.74764e-18 * 2, 0.0209036 * 2,
+        -3.36639e-17 * 2, -0.0438162 * 2, -1.54175e-17 * 2, 0.0931738 * 2,
+        -5.52212e-17 * 2, -0.313819 * 2
+    ];
+
+    this.L3psycho_anal_ns = function (gfp, buffer, bufPos, gr_out, masking_ratio, masking_MS_ratio, percep_entropy, percep_MS_entropy, energy, blocktype_d) {
+        /*
+         * to get a good cache performance, one has to think about the sequence,
+         * in which the variables are used.
+         */
+        var gfc = gfp.internal_flags;
+
+        /* fft and energy calculation */
+        var wsamp_L = new_float_n([2, Encoder.BLKSIZE]);
+        var wsamp_S = new_float_n([2, 3, Encoder.BLKSIZE_s]);
+
+        /* convolution */
+        var eb_l = new_float(Encoder.CBANDS + 1);
+        var eb_s = new_float(Encoder.CBANDS + 1);
+        var thr = new_float(Encoder.CBANDS + 2);
+
+        /* block type */
+        var blocktype = new_int(2), uselongblock = new_int(2);
+
+        /* usual variables like loop indices, etc.. */
+        var numchn, chn;
+        var b, i, j, k;
+        var sb, sblock;
+
+        /* variables used for --nspsytune */
+        var ns_hpfsmpl = new_float_n([2, 576]);
+        var pcfact;
+        var mask_idx_l = new_int(Encoder.CBANDS + 2), mask_idx_s = new_int(Encoder.CBANDS + 2);
+
+        Arrays.fill(mask_idx_s, 0);
+
+        numchn = gfc.channels_out;
+        /* chn=2 and 3 = Mid and Side channels */
+        if (gfp.mode == MPEGMode.JOINT_STEREO)
+            numchn = 4;
+
+        if (gfp.VBR == VbrMode.vbr_off)
+            pcfact = gfc.ResvMax == 0 ? 0 : ( gfc.ResvSize)
+            / gfc.ResvMax * 0.5;
+        else if (gfp.VBR == VbrMode.vbr_rh || gfp.VBR == VbrMode.vbr_mtrh
+            || gfp.VBR == VbrMode.vbr_mt) {
+            pcfact = 0.6;
+        } else
+            pcfact = 1.0;
+
+        /**********************************************************************
+         * Apply HPF of fs/4 to the input signal. This is used for attack
+         * detection / handling.
+         **********************************************************************/
+        /* Don't copy the input buffer into a temporary buffer */
+        /* unroll the loop 2 times */
+        for (chn = 0; chn < gfc.channels_out; chn++) {
+            /* apply high pass filter of fs/4 */
+            var firbuf = buffer[chn];
+            var firbufPos = bufPos + 576 - 350 - NSFIRLEN + 192;
+            for (i = 0; i < 576; i++) {
+                var sum1, sum2;
+                sum1 = firbuf[firbufPos + i + 10];
+                sum2 = 0.0;
+                for (j = 0; j < ((NSFIRLEN - 1) / 2) - 1; j += 2) {
+                    sum1 += fircoef[j]
+                        * (firbuf[firbufPos + i + j] + firbuf[firbufPos + i
+                        + NSFIRLEN - j]);
+                    sum2 += fircoef[j + 1]
+                        * (firbuf[firbufPos + i + j + 1] + firbuf[firbufPos
+                        + i + NSFIRLEN - j - 1]);
+                }
+                ns_hpfsmpl[chn][i] = sum1 + sum2;
+            }
+            masking_ratio[gr_out][chn].en.assign(gfc.en[chn]);
+            masking_ratio[gr_out][chn].thm.assign(gfc.thm[chn]);
+            if (numchn > 2) {
+                /* MS maskings */
+                /* percep_MS_entropy [chn-2] = gfc . pe [chn]; */
+                masking_MS_ratio[gr_out][chn].en.assign(gfc.en[chn + 2]);
+                masking_MS_ratio[gr_out][chn].thm.assign(gfc.thm[chn + 2]);
+            }
+        }
+
+        for (chn = 0; chn < numchn; chn++) {
+            var wsamp_l;
+            var wsamp_s;
+            var en_subshort = new_float(12);
+            var en_short = [0, 0, 0, 0];
+            var attack_intensity = new_float(12);
+            var ns_uselongblock = 1;
+            var attackThreshold;
+            var max = new_float(Encoder.CBANDS), avg = new_float(Encoder.CBANDS);
+            var ns_attacks = [0, 0, 0, 0];
+            var fftenergy = new_float(Encoder.HBLKSIZE);
+            var fftenergy_s = new_float_n([3, Encoder.HBLKSIZE_s]);
+
+            /*
+             * rh 20040301: the following loops do access one off the limits so
+             * I increase the array dimensions by one and initialize the
+             * accessed values to zero
+             */
+
+            /***************************************************************
+             * determine the block type (window type)
+             ***************************************************************/
+            /* calculate energies of each sub-shortblocks */
+            for (i = 0; i < 3; i++) {
+                en_subshort[i] = gfc.nsPsy.last_en_subshort[chn][i + 6];
+                attack_intensity[i] = en_subshort[i]
+                    / gfc.nsPsy.last_en_subshort[chn][i + 4];
+                en_short[0] += en_subshort[i];
+            }
+
+            if (chn == 2) {
+                for (i = 0; i < 576; i++) {
+                    var l, r;
+                    l = ns_hpfsmpl[0][i];
+                    r = ns_hpfsmpl[1][i];
+                    ns_hpfsmpl[0][i] = l + r;
+                    ns_hpfsmpl[1][i] = l - r;
+                }
+            }
+            {
+                var pf = ns_hpfsmpl[chn & 1];
+                var pfPos = 0;
+                for (i = 0; i < 9; i++) {
+                    var pfe = pfPos + 576 / 9;
+                    var p = 1.;
+                    for (; pfPos < pfe; pfPos++)
+                        if (p < Math.abs(pf[pfPos]))
+                            p = Math.abs(pf[pfPos]);
+
+                    gfc.nsPsy.last_en_subshort[chn][i] = en_subshort[i + 3] = p;
+                    en_short[1 + i / 3] += p;
+                    if (p > en_subshort[i + 3 - 2]) {
+                        p = p / en_subshort[i + 3 - 2];
+                    } else if (en_subshort[i + 3 - 2] > p * 10.0) {
+                        p = en_subshort[i + 3 - 2] / (p * 10.0);
+                    } else
+                        p = 0.0;
+                    attack_intensity[i + 3] = p;
+                }
+            }
+
+            if (gfp.analysis) {
+                var x = attack_intensity[0];
+                for (i = 1; i < 12; i++)
+                    if (x < attack_intensity[i])
+                        x = attack_intensity[i];
+                gfc.pinfo.ers[gr_out][chn] = gfc.pinfo.ers_save[chn];
+                gfc.pinfo.ers_save[chn] = x;
+            }
+
+            /* compare energies between sub-shortblocks */
+            attackThreshold = (chn == 3) ? gfc.nsPsy.attackthre_s
+                : gfc.nsPsy.attackthre;
+            for (i = 0; i < 12; i++)
+                if (0 == ns_attacks[i / 3]
+                    && attack_intensity[i] > attackThreshold)
+                    ns_attacks[i / 3] = (i % 3) + 1;
+
+            /*
+             * should have energy change between short blocks, in order to avoid
+             * periodic signals
+             */
+            for (i = 1; i < 4; i++) {
+                var ratio;
+                if (en_short[i - 1] > en_short[i]) {
+                    ratio = en_short[i - 1] / en_short[i];
+                } else {
+                    ratio = en_short[i] / en_short[i - 1];
+                }
+                if (ratio < 1.7) {
+                    ns_attacks[i] = 0;
+                    if (i == 1)
+                        ns_attacks[0] = 0;
+                }
+            }
+
+            if (ns_attacks[0] != 0 && gfc.nsPsy.lastAttacks[chn] != 0)
+                ns_attacks[0] = 0;
+
+            if (gfc.nsPsy.lastAttacks[chn] == 3
+                || (ns_attacks[0] + ns_attacks[1] + ns_attacks[2] + ns_attacks[3]) != 0) {
+                ns_uselongblock = 0;
+
+                if (ns_attacks[1] != 0 && ns_attacks[0] != 0)
+                    ns_attacks[1] = 0;
+                if (ns_attacks[2] != 0 && ns_attacks[1] != 0)
+                    ns_attacks[2] = 0;
+                if (ns_attacks[3] != 0 && ns_attacks[2] != 0)
+                    ns_attacks[3] = 0;
+            }
+
+            if (chn < 2) {
+                uselongblock[chn] = ns_uselongblock;
+            } else {
+                if (ns_uselongblock == 0) {
+                    uselongblock[0] = uselongblock[1] = 0;
+                }
+            }
+
+            /*
+             * there is a one granule delay. Copy maskings computed last call
+             * into masking_ratio to return to calling program.
+             */
+            energy[chn] = gfc.tot_ener[chn];
+
+            /*********************************************************************
+             * compute FFTs
+             *********************************************************************/
+            wsamp_s = wsamp_S;
+            wsamp_l = wsamp_L;
+            compute_ffts(gfp, fftenergy, fftenergy_s, wsamp_l, (chn & 1),
+                wsamp_s, (chn & 1), gr_out, chn, buffer, bufPos);
+
+            /*********************************************************************
+             * Calculate the energy and the tonality of each partition.
+             *********************************************************************/
+            calc_energy(gfc, fftenergy, eb_l, max, avg);
+            calc_mask_index_l(gfc, max, avg, mask_idx_l);
+            /* compute masking thresholds for short blocks */
+            for (sblock = 0; sblock < 3; sblock++) {
+                var enn, thmm;
+                compute_masking_s(gfp, fftenergy_s, eb_s, thr, chn, sblock);
+                convert_partition2scalefac_s(gfc, eb_s, thr, chn, sblock);
+                /**** short block pre-echo control ****/
+                for (sb = 0; sb < Encoder.SBMAX_s; sb++) {
+                    thmm = gfc.thm[chn].s[sb][sblock];
+
+                    thmm *= NS_PREECHO_ATT0;
+                    if (ns_attacks[sblock] >= 2 || ns_attacks[sblock + 1] == 1) {
+                        var idx = (sblock != 0) ? sblock - 1 : 2;
+                        var p = NS_INTERP(gfc.thm[chn].s[sb][idx], thmm,
+                            NS_PREECHO_ATT1 * pcfact);
+                        thmm = Math.min(thmm, p);
+                    }
+
+                    if (ns_attacks[sblock] == 1) {
+                        var idx = (sblock != 0) ? sblock - 1 : 2;
+                        var p = NS_INTERP(gfc.thm[chn].s[sb][idx], thmm,
+                            NS_PREECHO_ATT2 * pcfact);
+                        thmm = Math.min(thmm, p);
+                    } else if ((sblock != 0 && ns_attacks[sblock - 1] == 3)
+                        || (sblock == 0 && gfc.nsPsy.lastAttacks[chn] == 3)) {
+                        var idx = (sblock != 2) ? sblock + 1 : 0;
+                        var p = NS_INTERP(gfc.thm[chn].s[sb][idx], thmm,
+                            NS_PREECHO_ATT2 * pcfact);
+                        thmm = Math.min(thmm, p);
+                    }
+
+                    /* pulse like signal detection for fatboy.wav and so on */
+                    enn = en_subshort[sblock * 3 + 3]
+                        + en_subshort[sblock * 3 + 4]
+                        + en_subshort[sblock * 3 + 5];
+                    if (en_subshort[sblock * 3 + 5] * 6 < enn) {
+                        thmm *= 0.5;
+                        if (en_subshort[sblock * 3 + 4] * 6 < enn)
+                            thmm *= 0.5;
+                    }
+
+                    gfc.thm[chn].s[sb][sblock] = thmm;
+                }
+            }
+            gfc.nsPsy.lastAttacks[chn] = ns_attacks[2];
+
+            /*********************************************************************
+             * convolve the partitioned energy and unpredictability with the
+             * spreading function, s3_l[b][k]
+             ********************************************************************/
+            k = 0;
+            {
+                for (b = 0; b < gfc.npart_l; b++) {
+                    /*
+                     * convolve the partitioned energy with the spreading
+                     * function
+                     */
+                    var kk = gfc.s3ind[b][0];
+                    var eb2 = eb_l[kk] * tab[mask_idx_l[kk]];
+                    var ecb = gfc.s3_ll[k++] * eb2;
+                    while (++kk <= gfc.s3ind[b][1]) {
+                        eb2 = eb_l[kk] * tab[mask_idx_l[kk]];
+                        ecb = mask_add(ecb, gfc.s3_ll[k++] * eb2, kk, kk - b,
+                            gfc, 0);
+                    }
+                    ecb *= 0.158489319246111;
+                    /* pow(10,-0.8) */
+
+                    /**** long block pre-echo control ****/
+                    /**
+                     * <PRE>
+                     * dont use long block pre-echo control if previous granule was
+                     * a short block.  This is to avoid the situation:
+                     * frame0:  quiet (very low masking)
+                     * frame1:  surge  (triggers short blocks)
+                     * frame2:  regular frame.  looks like pre-echo when compared to
+                     *          frame0, but all pre-echo was in frame1.
+                     * </PRE>
+                     */
+                    /*
+                     * chn=0,1 L and R channels
+                     *
+                     * chn=2,3 S and M channels.
+                     */
+
+                    if (gfc.blocktype_old[chn & 1] == Encoder.SHORT_TYPE)
+                        thr[b] = ecb;
+                    else
+                        thr[b] = NS_INTERP(
+                            Math.min(ecb, Math.min(rpelev
+                                * gfc.nb_1[chn][b], rpelev2
+                                * gfc.nb_2[chn][b])), ecb, pcfact);
+
+                    gfc.nb_2[chn][b] = gfc.nb_1[chn][b];
+                    gfc.nb_1[chn][b] = ecb;
+                }
+            }
+            for (; b <= Encoder.CBANDS; ++b) {
+                eb_l[b] = 0;
+                thr[b] = 0;
+            }
+            /* compute masking thresholds for long blocks */
+            convert_partition2scalefac_l(gfc, eb_l, thr, chn);
+        }
+        /* end loop over chn */
+
+        if (gfp.mode == MPEGMode.STEREO || gfp.mode == MPEGMode.JOINT_STEREO) {
+            if (gfp.interChRatio > 0.0) {
+                calc_interchannel_masking(gfp, gfp.interChRatio);
+            }
+        }
+
+        if (gfp.mode == MPEGMode.JOINT_STEREO) {
+            var msfix;
+            msfix1(gfc);
+            msfix = gfp.msfix;
+            if (Math.abs(msfix) > 0.0)
+                ns_msfix(gfc, msfix, gfp.ATHlower * gfc.ATH.adjust);
+        }
+
+        /***************************************************************
+         * determine final block type
+         ***************************************************************/
+        block_type_set(gfp, uselongblock, blocktype_d, blocktype);
+
+        /*********************************************************************
+         * compute the value of PE to return ... no delay and advance
+         *********************************************************************/
+        for (chn = 0; chn < numchn; chn++) {
+            var ppe;
+            var ppePos = 0;
+            var type;
+            var mr;
+
+            if (chn > 1) {
+                ppe = percep_MS_entropy;
+                ppePos = -2;
+                type = Encoder.NORM_TYPE;
+                if (blocktype_d[0] == Encoder.SHORT_TYPE
+                    || blocktype_d[1] == Encoder.SHORT_TYPE)
+                    type = Encoder.SHORT_TYPE;
+                mr = masking_MS_ratio[gr_out][chn - 2];
+            } else {
+                ppe = percep_entropy;
+                ppePos = 0;
+                type = blocktype_d[chn];
+                mr = masking_ratio[gr_out][chn];
+            }
+
+            if (type == Encoder.SHORT_TYPE)
+                ppe[ppePos + chn] = pecalc_s(mr, gfc.masking_lower);
+            else
+                ppe[ppePos + chn] = pecalc_l(mr, gfc.masking_lower);
+
+            if (gfp.analysis)
+                gfc.pinfo.pe[gr_out][chn] = ppe[ppePos + chn];
+
+        }
+        return 0;
+    }
+
+    function vbrpsy_compute_fft_l(gfp, buffer, bufPos, chn, gr_out, fftenergy, wsamp_l, wsamp_lPos) {
+        var gfc = gfp.internal_flags;
+        if (chn < 2) {
+            fft.fft_long(gfc, wsamp_l[wsamp_lPos], chn, buffer, bufPos);
+        } else if (chn == 2) {
+            /* FFT data for mid and side channel is derived from L & R */
+            for (var j = Encoder.BLKSIZE - 1; j >= 0; --j) {
+                var l = wsamp_l[wsamp_lPos + 0][j];
+                var r = wsamp_l[wsamp_lPos + 1][j];
+                wsamp_l[wsamp_lPos + 0][j] = (l + r) * Util.SQRT2 * 0.5;
+                wsamp_l[wsamp_lPos + 1][j] = (l - r) * Util.SQRT2 * 0.5;
+            }
+        }
+
+        /*********************************************************************
+         * compute energies
+         *********************************************************************/
+        fftenergy[0] = NON_LINEAR_SCALE_ENERGY(wsamp_l[wsamp_lPos + 0][0]);
+        fftenergy[0] *= fftenergy[0];
+
+        for (var j = Encoder.BLKSIZE / 2 - 1; j >= 0; --j) {
+            var re = wsamp_l[wsamp_lPos + 0][Encoder.BLKSIZE / 2 - j];
+            var im = wsamp_l[wsamp_lPos + 0][Encoder.BLKSIZE / 2 + j];
+            fftenergy[Encoder.BLKSIZE / 2 - j] = NON_LINEAR_SCALE_ENERGY((re
+                * re + im * im) * 0.5);
+        }
+        /* total energy */
+        {
+            var totalenergy = 0.0;
+            for (var j = 11; j < Encoder.HBLKSIZE; j++)
+                totalenergy += fftenergy[j];
+
+            gfc.tot_ener[chn] = totalenergy;
+        }
+
+        if (gfp.analysis) {
+            for (var j = 0; j < Encoder.HBLKSIZE; j++) {
+                gfc.pinfo.energy[gr_out][chn][j] = gfc.pinfo.energy_save[chn][j];
+                gfc.pinfo.energy_save[chn][j] = fftenergy[j];
+            }
+            gfc.pinfo.pe[gr_out][chn] = gfc.pe[chn];
+        }
+    }
+
+    function vbrpsy_compute_fft_s(gfp, buffer, bufPos, chn, sblock, fftenergy_s, wsamp_s, wsamp_sPos) {
+        var gfc = gfp.internal_flags;
+
+        if (sblock == 0 && chn < 2) {
+            fft.fft_short(gfc, wsamp_s[wsamp_sPos], chn, buffer, bufPos);
+        }
+        if (chn == 2) {
+            /* FFT data for mid and side channel is derived from L & R */
+            for (var j = Encoder.BLKSIZE_s - 1; j >= 0; --j) {
+                var l = wsamp_s[wsamp_sPos + 0][sblock][j];
+                var r = wsamp_s[wsamp_sPos + 1][sblock][j];
+                wsamp_s[wsamp_sPos + 0][sblock][j] = (l + r) * Util.SQRT2 * 0.5;
+                wsamp_s[wsamp_sPos + 1][sblock][j] = (l - r) * Util.SQRT2 * 0.5;
+            }
+        }
+
+        /*********************************************************************
+         * compute energies
+         *********************************************************************/
+        fftenergy_s[sblock][0] = wsamp_s[wsamp_sPos + 0][sblock][0];
+        fftenergy_s[sblock][0] *= fftenergy_s[sblock][0];
+        for (var j = Encoder.BLKSIZE_s / 2 - 1; j >= 0; --j) {
+            var re = wsamp_s[wsamp_sPos + 0][sblock][Encoder.BLKSIZE_s / 2 - j];
+            var im = wsamp_s[wsamp_sPos + 0][sblock][Encoder.BLKSIZE_s / 2 + j];
+            fftenergy_s[sblock][Encoder.BLKSIZE_s / 2 - j] = NON_LINEAR_SCALE_ENERGY((re
+                * re + im * im) * 0.5);
+        }
+    }
+
+    /**
+     * compute loudness approximation (used for ATH auto-level adjustment)
+     */
+    function vbrpsy_compute_loudness_approximation_l(gfp, gr_out, chn, fftenergy) {
+        var gfc = gfp.internal_flags;
+        if (gfp.athaa_loudapprox == 2 && chn < 2) {
+            // no loudness for mid/side ch
+            gfc.loudness_sq[gr_out][chn] = gfc.loudness_sq_save[chn];
+            gfc.loudness_sq_save[chn] = psycho_loudness_approx(fftenergy, gfc);
+        }
+    }
+
+    var fircoef_ = [-8.65163e-18 * 2,
+        -0.00851586 * 2, -6.74764e-18 * 2, 0.0209036 * 2,
+        -3.36639e-17 * 2, -0.0438162 * 2, -1.54175e-17 * 2,
+        0.0931738 * 2, -5.52212e-17 * 2, -0.313819 * 2];
+
+    /**
+     * Apply HPF of fs/4 to the input signal. This is used for attack detection
+     * / handling.
+     */
+    function vbrpsy_attack_detection(gfp, buffer, bufPos, gr_out, masking_ratio, masking_MS_ratio, energy, sub_short_factor, ns_attacks, uselongblock) {
+        var ns_hpfsmpl = new_float_n([2, 576]);
+        var gfc = gfp.internal_flags;
+        var n_chn_out = gfc.channels_out;
+        /* chn=2 and 3 = Mid and Side channels */
+        var n_chn_psy = (gfp.mode == MPEGMode.JOINT_STEREO) ? 4 : n_chn_out;
+        /* Don't copy the input buffer into a temporary buffer */
+        /* unroll the loop 2 times */
+        for (var chn = 0; chn < n_chn_out; chn++) {
+            /* apply high pass filter of fs/4 */
+            firbuf = buffer[chn];
+            var firbufPos = bufPos + 576 - 350 - NSFIRLEN + 192;
+            for (var i = 0; i < 576; i++) {
+                var sum1, sum2;
+                sum1 = firbuf[firbufPos + i + 10];
+                sum2 = 0.0;
+                for (var j = 0; j < ((NSFIRLEN - 1) / 2) - 1; j += 2) {
+                    sum1 += fircoef_[j]
+                        * (firbuf[firbufPos + i + j] + firbuf[firbufPos + i
+                        + NSFIRLEN - j]);
+                    sum2 += fircoef_[j + 1]
+                        * (firbuf[firbufPos + i + j + 1] + firbuf[firbufPos
+                        + i + NSFIRLEN - j - 1]);
+                }
+                ns_hpfsmpl[chn][i] = sum1 + sum2;
+            }
+            masking_ratio[gr_out][chn].en.assign(gfc.en[chn]);
+            masking_ratio[gr_out][chn].thm.assign(gfc.thm[chn]);
+            if (n_chn_psy > 2) {
+                /* MS maskings */
+                /* percep_MS_entropy [chn-2] = gfc . pe [chn]; */
+                masking_MS_ratio[gr_out][chn].en.assign(gfc.en[chn + 2]);
+                masking_MS_ratio[gr_out][chn].thm.assign(gfc.thm[chn + 2]);
+            }
+        }
+        for (var chn = 0; chn < n_chn_psy; chn++) {
+            var attack_intensity = new_float(12);
+            var en_subshort = new_float(12);
+            var en_short = [0, 0, 0, 0];
+            var pf = ns_hpfsmpl[chn & 1];
+            var pfPos = 0;
+            var attackThreshold = (chn == 3) ? gfc.nsPsy.attackthre_s
+                : gfc.nsPsy.attackthre;
+            var ns_uselongblock = 1;
+
+            if (chn == 2) {
+                for (var i = 0, j = 576; j > 0; ++i, --j) {
+                    var l = ns_hpfsmpl[0][i];
+                    var r = ns_hpfsmpl[1][i];
+                    ns_hpfsmpl[0][i] = l + r;
+                    ns_hpfsmpl[1][i] = l - r;
+                }
+            }
+            /***************************************************************
+             * determine the block type (window type)
+             ***************************************************************/
+            /* calculate energies of each sub-shortblocks */
+            for (var i = 0; i < 3; i++) {
+                en_subshort[i] = gfc.nsPsy.last_en_subshort[chn][i + 6];
+                attack_intensity[i] = en_subshort[i]
+                    / gfc.nsPsy.last_en_subshort[chn][i + 4];
+                en_short[0] += en_subshort[i];
+            }
+
+            for (var i = 0; i < 9; i++) {
+                var pfe = pfPos + 576 / 9;
+                var p = 1.;
+                for (; pfPos < pfe; pfPos++)
+                    if (p < Math.abs(pf[pfPos]))
+                        p = Math.abs(pf[pfPos]);
+
+                gfc.nsPsy.last_en_subshort[chn][i] = en_subshort[i + 3] = p;
+                en_short[1 + i / 3] += p;
+                if (p > en_subshort[i + 3 - 2]) {
+                    p = p / en_subshort[i + 3 - 2];
+                } else if (en_subshort[i + 3 - 2] > p * 10.0) {
+                    p = en_subshort[i + 3 - 2] / (p * 10.0);
+                } else {
+                    p = 0.0;
+                }
+                attack_intensity[i + 3] = p;
+            }
+            /* pulse like signal detection for fatboy.wav and so on */
+            for (var i = 0; i < 3; ++i) {
+                var enn = en_subshort[i * 3 + 3]
+                    + en_subshort[i * 3 + 4] + en_subshort[i * 3 + 5];
+                var factor = 1.;
+                if (en_subshort[i * 3 + 5] * 6 < enn) {
+                    factor *= 0.5;
+                    if (en_subshort[i * 3 + 4] * 6 < enn) {
+                        factor *= 0.5;
+                    }
+                }
+                sub_short_factor[chn][i] = factor;
+            }
+
+            if (gfp.analysis) {
+                var x = attack_intensity[0];
+                for (var i = 1; i < 12; i++) {
+                    if (x < attack_intensity[i]) {
+                        x = attack_intensity[i];
+                    }
+                }
+                gfc.pinfo.ers[gr_out][chn] = gfc.pinfo.ers_save[chn];
+                gfc.pinfo.ers_save[chn] = x;
+            }
+
+            /* compare energies between sub-shortblocks */
+            for (var i = 0; i < 12; i++) {
+                if (0 == ns_attacks[chn][i / 3]
+                    && attack_intensity[i] > attackThreshold) {
+                    ns_attacks[chn][i / 3] = (i % 3) + 1;
+                }
+            }
+
+            /*
+             * should have energy change between short blocks, in order to avoid
+             * periodic signals
+             */
+            /* Good samples to show the effect are Trumpet test songs */
+            /*
+             * GB: tuned (1) to avoid too many short blocks for test sample
+             * TRUMPET
+             */
+            /*
+             * RH: tuned (2) to let enough short blocks through for test sample
+             * FSOL and SNAPS
+             */
+            for (var i = 1; i < 4; i++) {
+                var u = en_short[i - 1];
+                var v = en_short[i];
+                var m = Math.max(u, v);
+                if (m < 40000) { /* (2) */
+                    if (u < 1.7 * v && v < 1.7 * u) { /* (1) */
+                        if (i == 1 && ns_attacks[chn][0] <= ns_attacks[chn][i]) {
+                            ns_attacks[chn][0] = 0;
+                        }
+                        ns_attacks[chn][i] = 0;
+                    }
+                }
+            }
+
+            if (ns_attacks[chn][0] <= gfc.nsPsy.lastAttacks[chn]) {
+                ns_attacks[chn][0] = 0;
+            }
+
+            if (gfc.nsPsy.lastAttacks[chn] == 3
+                || (ns_attacks[chn][0] + ns_attacks[chn][1]
+                + ns_attacks[chn][2] + ns_attacks[chn][3]) != 0) {
+                ns_uselongblock = 0;
+
+                if (ns_attacks[chn][1] != 0 && ns_attacks[chn][0] != 0) {
+                    ns_attacks[chn][1] = 0;
+                }
+                if (ns_attacks[chn][2] != 0 && ns_attacks[chn][1] != 0) {
+                    ns_attacks[chn][2] = 0;
+                }
+                if (ns_attacks[chn][3] != 0 && ns_attacks[chn][2] != 0) {
+                    ns_attacks[chn][3] = 0;
+                }
+            }
+            if (chn < 2) {
+                uselongblock[chn] = ns_uselongblock;
+            } else {
+                if (ns_uselongblock == 0) {
+                    uselongblock[0] = uselongblock[1] = 0;
+                }
+            }
+
+            /*
+             * there is a one granule delay. Copy maskings computed last call
+             * into masking_ratio to return to calling program.
+             */
+            energy[chn] = gfc.tot_ener[chn];
+        }
+    }
+
+    function vbrpsy_skip_masking_s(gfc, chn, sblock) {
+        if (sblock == 0) {
+            for (var b = 0; b < gfc.npart_s; b++) {
+                gfc.nb_s2[chn][b] = gfc.nb_s1[chn][b];
+                gfc.nb_s1[chn][b] = 0;
+            }
+        }
+    }
+
+    function vbrpsy_skip_masking_l(gfc, chn) {
+        for (var b = 0; b < gfc.npart_l; b++) {
+            gfc.nb_2[chn][b] = gfc.nb_1[chn][b];
+            gfc.nb_1[chn][b] = 0;
+        }
+    }
+
+    function psyvbr_calc_mask_index_s(gfc, max, avg, mask_idx) {
+        var last_tab_entry = tab.length - 1;
+        var b = 0;
+        var a = avg[b] + avg[b + 1];
+        if (a > 0.0) {
+            var m = max[b];
+            if (m < max[b + 1])
+                m = max[b + 1];
+            a = 20.0 * (m * 2.0 - a)
+                / (a * (gfc.numlines_s[b] + gfc.numlines_s[b + 1] - 1));
+            var k = 0 | a;
+            if (k > last_tab_entry)
+                k = last_tab_entry;
+            mask_idx[b] = k;
+        } else {
+            mask_idx[b] = 0;
+        }
+
+        for (b = 1; b < gfc.npart_s - 1; b++) {
+            a = avg[b - 1] + avg[b] + avg[b + 1];
+            if (a > 0.0) {
+                var m = max[b - 1];
+                if (m < max[b])
+                    m = max[b];
+                if (m < max[b + 1])
+                    m = max[b + 1];
+                a = 20.0
+                    * (m * 3.0 - a)
+                    / (a * (gfc.numlines_s[b - 1] + gfc.numlines_s[b]
+                    + gfc.numlines_s[b + 1] - 1));
+                var k = 0 | a;
+                if (k > last_tab_entry)
+                    k = last_tab_entry;
+                mask_idx[b] = k;
+            } else {
+                mask_idx[b] = 0;
+            }
+        }
+
+        a = avg[b - 1] + avg[b];
+        if (a > 0.0) {
+            var m = max[b - 1];
+            if (m < max[b])
+                m = max[b];
+            a = 20.0 * (m * 2.0 - a)
+                / (a * (gfc.numlines_s[b - 1] + gfc.numlines_s[b] - 1));
+            var k = 0 | a;
+            if (k > last_tab_entry)
+                k = last_tab_entry;
+            mask_idx[b] = k;
+        } else {
+            mask_idx[b] = 0;
+        }
+    }
+
+    function vbrpsy_compute_masking_s(gfp, fftenergy_s, eb, thr, chn, sblock) {
+        var gfc = gfp.internal_flags;
+        var max = new float[Encoder.CBANDS], avg = new_float(Encoder.CBANDS);
+        var i, j, b;
+        var mask_idx_s = new int[Encoder.CBANDS];
+
+        for (b = j = 0; b < gfc.npart_s; ++b) {
+            var ebb = 0, m = 0;
+            var n = gfc.numlines_s[b];
+            for (i = 0; i < n; ++i, ++j) {
+                var el = fftenergy_s[sblock][j];
+                ebb += el;
+                if (m < el)
+                    m = el;
+            }
+            eb[b] = ebb;
+            max[b] = m;
+            avg[b] = ebb / n;
+        }
+        for (; b < Encoder.CBANDS; ++b) {
+            max[b] = 0;
+            avg[b] = 0;
+        }
+        psyvbr_calc_mask_index_s(gfc, max, avg, mask_idx_s);
+        for (j = b = 0; b < gfc.npart_s; b++) {
+            var kk = gfc.s3ind_s[b][0];
+            var last = gfc.s3ind_s[b][1];
+            var dd, dd_n;
+            var x, ecb, avg_mask;
+            dd = mask_idx_s[kk];
+            dd_n = 1;
+            ecb = gfc.s3_ss[j] * eb[kk] * tab[mask_idx_s[kk]];
+            ++j;
+            ++kk;
+            while (kk <= last) {
+                dd += mask_idx_s[kk];
+                dd_n += 1;
+                x = gfc.s3_ss[j] * eb[kk] * tab[mask_idx_s[kk]];
+                ecb = vbrpsy_mask_add(ecb, x, kk - b);
+                ++j;
+                ++kk;
+            }
+            dd = (1 + 2 * dd) / (2 * dd_n);
+            avg_mask = tab[dd] * 0.5;
+            ecb *= avg_mask;
+            thr[b] = ecb;
+            gfc.nb_s2[chn][b] = gfc.nb_s1[chn][b];
+            gfc.nb_s1[chn][b] = ecb;
+            {
+                /*
+                 * if THR exceeds EB, the quantization routines will take the
+                 * difference from other bands. in case of strong tonal samples
+                 * (tonaltest.wav) this leads to heavy distortions. that's why
+                 * we limit THR here.
+                 */
+                x = max[b];
+                x *= gfc.minval_s[b];
+                x *= avg_mask;
+                if (thr[b] > x) {
+                    thr[b] = x;
+                }
+            }
+            if (gfc.masking_lower > 1) {
+                thr[b] *= gfc.masking_lower;
+            }
+            if (thr[b] > eb[b]) {
+                thr[b] = eb[b];
+            }
+            if (gfc.masking_lower < 1) {
+                thr[b] *= gfc.masking_lower;
+            }
+
+        }
+        for (; b < Encoder.CBANDS; ++b) {
+            eb[b] = 0;
+            thr[b] = 0;
+        }
+    }
+
+    function vbrpsy_compute_masking_l(gfc, fftenergy, eb_l, thr, chn) {
+        var max = new_float(Encoder.CBANDS), avg = new_float(Encoder.CBANDS);
+        var mask_idx_l = new_int(Encoder.CBANDS + 2);
+        var b;
+
+        /*********************************************************************
+         * Calculate the energy and the tonality of each partition.
+         *********************************************************************/
+        calc_energy(gfc, fftenergy, eb_l, max, avg);
+        calc_mask_index_l(gfc, max, avg, mask_idx_l);
+
+        /*********************************************************************
+         * convolve the partitioned energy and unpredictability with the
+         * spreading function, s3_l[b][k]
+         ********************************************************************/
+        var k = 0;
+        for (b = 0; b < gfc.npart_l; b++) {
+            var x, ecb, avg_mask, t;
+            /* convolve the partitioned energy with the spreading function */
+            var kk = gfc.s3ind[b][0];
+            var last = gfc.s3ind[b][1];
+            var dd = 0, dd_n = 0;
+            dd = mask_idx_l[kk];
+            dd_n += 1;
+            ecb = gfc.s3_ll[k] * eb_l[kk] * tab[mask_idx_l[kk]];
+            ++k;
+            ++kk;
+            while (kk <= last) {
+                dd += mask_idx_l[kk];
+                dd_n += 1;
+                x = gfc.s3_ll[k] * eb_l[kk] * tab[mask_idx_l[kk]];
+                t = vbrpsy_mask_add(ecb, x, kk - b);
+                ecb = t;
+                ++k;
+                ++kk;
+            }
+            dd = (1 + 2 * dd) / (2 * dd_n);
+            avg_mask = tab[dd] * 0.5;
+            ecb *= avg_mask;
+
+            /**** long block pre-echo control ****/
+            /**
+             * <PRE>
+             * dont use long block pre-echo control if previous granule was
+             * a short block.  This is to avoid the situation:
+             * frame0:  quiet (very low masking)
+             * frame1:  surge  (triggers short blocks)
+             * frame2:  regular frame.  looks like pre-echo when compared to
+             *          frame0, but all pre-echo was in frame1.
+             * </PRE>
+             */
+            /*
+             * chn=0,1 L and R channels chn=2,3 S and M channels.
+             */
+            if (gfc.blocktype_old[chn & 0x01] == Encoder.SHORT_TYPE) {
+                var ecb_limit = rpelev * gfc.nb_1[chn][b];
+                if (ecb_limit > 0) {
+                    thr[b] = Math.min(ecb, ecb_limit);
+                } else {
+                    /**
+                     * <PRE>
+                     * Robert 071209:
+                     * Because we don't calculate long block psy when we know a granule
+                     * should be of short blocks, we don't have any clue how the granule
+                     * before would have looked like as a long block. So we have to guess
+                     * a little bit for this END_TYPE block.
+                     * Most of the time we get away with this sloppyness. (fingers crossed :)
+                     * The speed increase is worth it.
+                     * </PRE>
+                     */
+                    thr[b] = Math.min(ecb, eb_l[b] * NS_PREECHO_ATT2);
+                }
+            } else {
+                var ecb_limit_2 = rpelev2 * gfc.nb_2[chn][b];
+                var ecb_limit_1 = rpelev * gfc.nb_1[chn][b];
+                var ecb_limit;
+                if (ecb_limit_2 <= 0) {
+                    ecb_limit_2 = ecb;
+                }
+                if (ecb_limit_1 <= 0) {
+                    ecb_limit_1 = ecb;
+                }
+                if (gfc.blocktype_old[chn & 0x01] == Encoder.NORM_TYPE) {
+                    ecb_limit = Math.min(ecb_limit_1, ecb_limit_2);
+                } else {
+                    ecb_limit = ecb_limit_1;
+                }
+                thr[b] = Math.min(ecb, ecb_limit);
+            }
+            gfc.nb_2[chn][b] = gfc.nb_1[chn][b];
+            gfc.nb_1[chn][b] = ecb;
+            {
+                /*
+                 * if THR exceeds EB, the quantization routines will take the
+                 * difference from other bands. in case of strong tonal samples
+                 * (tonaltest.wav) this leads to heavy distortions. that's why
+                 * we limit THR here.
+                 */
+                x = max[b];
+                x *= gfc.minval_l[b];
+                x *= avg_mask;
+                if (thr[b] > x) {
+                    thr[b] = x;
+                }
+            }
+            if (gfc.masking_lower > 1) {
+                thr[b] *= gfc.masking_lower;
+            }
+            if (thr[b] > eb_l[b]) {
+                thr[b] = eb_l[b];
+            }
+            if (gfc.masking_lower < 1) {
+                thr[b] *= gfc.masking_lower;
+            }
+        }
+        for (; b < Encoder.CBANDS; ++b) {
+            eb_l[b] = 0;
+            thr[b] = 0;
+        }
+    }
+
+    function vbrpsy_compute_block_type(gfp, uselongblock) {
+        var gfc = gfp.internal_flags;
+
+        if (gfp.short_blocks == ShortBlock.short_block_coupled
+                /* force both channels to use the same block type */
+                /* this is necessary if the frame is to be encoded in ms_stereo. */
+                /* But even without ms_stereo, FhG does this */
+            && !(uselongblock[0] != 0 && uselongblock[1] != 0))
+            uselongblock[0] = uselongblock[1] = 0;
+
+        for (var chn = 0; chn < gfc.channels_out; chn++) {
+            /* disable short blocks */
+            if (gfp.short_blocks == ShortBlock.short_block_dispensed) {
+                uselongblock[chn] = 1;
+            }
+            if (gfp.short_blocks == ShortBlock.short_block_forced) {
+                uselongblock[chn] = 0;
+            }
+        }
+    }
+
+    function vbrpsy_apply_block_type(gfp, uselongblock, blocktype_d) {
+        var gfc = gfp.internal_flags;
+
+        /*
+         * update the blocktype of the previous granule, since it depends on
+         * what happend in this granule
+         */
+        for (var chn = 0; chn < gfc.channels_out; chn++) {
+            var blocktype = Encoder.NORM_TYPE;
+            /* disable short blocks */
+
+            if (uselongblock[chn] != 0) {
+                /* no attack : use long blocks */
+                if (gfc.blocktype_old[chn] == Encoder.SHORT_TYPE)
+                    blocktype = Encoder.STOP_TYPE;
+            } else {
+                /* attack : use short blocks */
+                blocktype = Encoder.SHORT_TYPE;
+                if (gfc.blocktype_old[chn] == Encoder.NORM_TYPE) {
+                    gfc.blocktype_old[chn] = Encoder.START_TYPE;
+                }
+                if (gfc.blocktype_old[chn] == Encoder.STOP_TYPE)
+                    gfc.blocktype_old[chn] = Encoder.SHORT_TYPE;
+            }
+
+            blocktype_d[chn] = gfc.blocktype_old[chn];
+            // value returned to calling program
+            gfc.blocktype_old[chn] = blocktype;
+            // save for next call to l3psy_anal
+        }
+    }
+
+    /**
+     * compute M/S thresholds from Johnston & Ferreira 1992 ICASSP paper
+     */
+    function vbrpsy_compute_MS_thresholds(eb, thr, cb_mld, ath_cb, athadjust, msfix, n) {
+        var msfix2 = msfix * 2;
+        var athlower = msfix > 0 ? Math.pow(10, athadjust) : 1;
+        var rside, rmid;
+        for (var b = 0; b < n; ++b) {
+            var ebM = eb[2][b];
+            var ebS = eb[3][b];
+            var thmL = thr[0][b];
+            var thmR = thr[1][b];
+            var thmM = thr[2][b];
+            var thmS = thr[3][b];
+
+            /* use this fix if L & R masking differs by 2db or less */
+            if (thmL <= 1.58 * thmR && thmR <= 1.58 * thmL) {
+                var mld_m = cb_mld[b] * ebS;
+                var mld_s = cb_mld[b] * ebM;
+                rmid = Math.max(thmM, Math.min(thmS, mld_m));
+                rside = Math.max(thmS, Math.min(thmM, mld_s));
+            } else {
+                rmid = thmM;
+                rside = thmS;
+            }
+            if (msfix > 0) {
+                /***************************************************************/
+                /* Adjust M/S maskings if user set "msfix" */
+                /***************************************************************/
+                /* Naoki Shibata 2000 */
+                var thmLR, thmMS;
+                var ath = ath_cb[b] * athlower;
+                thmLR = Math.min(Math.max(thmL, ath), Math.max(thmR, ath));
+                thmM = Math.max(rmid, ath);
+                thmS = Math.max(rside, ath);
+                thmMS = thmM + thmS;
+                if (thmMS > 0 && (thmLR * msfix2) < thmMS) {
+                    var f = thmLR * msfix2 / thmMS;
+                    thmM *= f;
+                    thmS *= f;
+                }
+                rmid = Math.min(thmM, rmid);
+                rside = Math.min(thmS, rside);
+            }
+            if (rmid > ebM) {
+                rmid = ebM;
+            }
+            if (rside > ebS) {
+                rside = ebS;
+            }
+            thr[2][b] = rmid;
+            thr[3][b] = rside;
+        }
+    }
+
+    this.L3psycho_anal_vbr = function (gfp, buffer, bufPos, gr_out, masking_ratio, masking_MS_ratio, percep_entropy, percep_MS_entropy, energy, blocktype_d) {
+        var gfc = gfp.internal_flags;
+
+        /* fft and energy calculation */
+        var wsamp_l;
+        var wsamp_s;
+        var fftenergy = new_float(Encoder.HBLKSIZE);
+        var fftenergy_s = new_float_n([3, Encoder.HBLKSIZE_s]);
+        var wsamp_L = new_float_n([2, Encoder.BLKSIZE]);
+        var wsamp_S = new_float_n([2, 3, Encoder.BLKSIZE_s]);
+        var eb = new_float_n([4, Encoder.CBANDS]), thr = new_float_n([4, Encoder.CBANDS]);
+        var sub_short_factor = new_float_n([4, 3]);
+        var pcfact = 0.6;
+
+        /* block type */
+        var ns_attacks = [[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0],
+            [0, 0, 0, 0]];
+        var uselongblock = new_int(2);
+
+        /* usual variables like loop indices, etc.. */
+
+        /* chn=2 and 3 = Mid and Side channels */
+        var n_chn_psy = (gfp.mode == MPEGMode.JOINT_STEREO) ? 4
+            : gfc.channels_out;
+
+        vbrpsy_attack_detection(gfp, buffer, bufPos, gr_out, masking_ratio,
+            masking_MS_ratio, energy, sub_short_factor, ns_attacks,
+            uselongblock);
+
+        vbrpsy_compute_block_type(gfp, uselongblock);
+
+        /* LONG BLOCK CASE */
+        {
+            for (var chn = 0; chn < n_chn_psy; chn++) {
+                var ch01 = chn & 0x01;
+                wsamp_l = wsamp_L;
+                vbrpsy_compute_fft_l(gfp, buffer, bufPos, chn, gr_out,
+                    fftenergy, wsamp_l, ch01);
+
+                vbrpsy_compute_loudness_approximation_l(gfp, gr_out, chn,
+                    fftenergy);
+
+                if (uselongblock[ch01] != 0) {
+                    vbrpsy_compute_masking_l(gfc, fftenergy, eb[chn], thr[chn],
+                        chn);
+                } else {
+                    vbrpsy_skip_masking_l(gfc, chn);
+                }
+            }
+            if ((uselongblock[0] + uselongblock[1]) == 2) {
+                /* M/S channel */
+                if (gfp.mode == MPEGMode.JOINT_STEREO) {
+                    vbrpsy_compute_MS_thresholds(eb, thr, gfc.mld_cb_l,
+                        gfc.ATH.cb_l, gfp.ATHlower * gfc.ATH.adjust,
+                        gfp.msfix, gfc.npart_l);
+                }
+            }
+            /* TODO: apply adaptive ATH masking here ?? */
+            for (var chn = 0; chn < n_chn_psy; chn++) {
+                var ch01 = chn & 0x01;
+                if (uselongblock[ch01] != 0) {
+                    convert_partition2scalefac_l(gfc, eb[chn], thr[chn], chn);
+                }
+            }
+        }
+
+        /* SHORT BLOCKS CASE */
+        {
+            for (var sblock = 0; sblock < 3; sblock++) {
+                for (var chn = 0; chn < n_chn_psy; ++chn) {
+                    var ch01 = chn & 0x01;
+
+                    if (uselongblock[ch01] != 0) {
+                        vbrpsy_skip_masking_s(gfc, chn, sblock);
+                    } else {
+                        /* compute masking thresholds for short blocks */
+                        wsamp_s = wsamp_S;
+                        vbrpsy_compute_fft_s(gfp, buffer, bufPos, chn, sblock,
+                            fftenergy_s, wsamp_s, ch01);
+                        vbrpsy_compute_masking_s(gfp, fftenergy_s, eb[chn],
+                            thr[chn], chn, sblock);
+                    }
+                }
+                if ((uselongblock[0] + uselongblock[1]) == 0) {
+                    /* M/S channel */
+                    if (gfp.mode == MPEGMode.JOINT_STEREO) {
+                        vbrpsy_compute_MS_thresholds(eb, thr, gfc.mld_cb_s,
+                            gfc.ATH.cb_s, gfp.ATHlower * gfc.ATH.adjust,
+                            gfp.msfix, gfc.npart_s);
+                    }
+                    /* L/R channel */
+                }
+                /* TODO: apply adaptive ATH masking here ?? */
+                for (var chn = 0; chn < n_chn_psy; ++chn) {
+                    var ch01 = chn & 0x01;
+                    if (0 == uselongblock[ch01]) {
+                        convert_partition2scalefac_s(gfc, eb[chn], thr[chn],
+                            chn, sblock);
+                    }
+                }
+            }
+
+            /**** short block pre-echo control ****/
+            for (var chn = 0; chn < n_chn_psy; chn++) {
+                var ch01 = chn & 0x01;
+
+                if (uselongblock[ch01] != 0) {
+                    continue;
+                }
+                for (var sb = 0; sb < Encoder.SBMAX_s; sb++) {
+                    var new_thmm = new_float(3);
+                    for (var sblock = 0; sblock < 3; sblock++) {
+                        var thmm = gfc.thm[chn].s[sb][sblock];
+                        thmm *= NS_PREECHO_ATT0;
+
+                        if (ns_attacks[chn][sblock] >= 2
+                            || ns_attacks[chn][sblock + 1] == 1) {
+                            var idx = (sblock != 0) ? sblock - 1 : 2;
+                            var p = NS_INTERP(gfc.thm[chn].s[sb][idx], thmm,
+                                NS_PREECHO_ATT1 * pcfact);
+                            thmm = Math.min(thmm, p);
+                        } else if (ns_attacks[chn][sblock] == 1) {
+                            var idx = (sblock != 0) ? sblock - 1 : 2;
+                            var p = NS_INTERP(gfc.thm[chn].s[sb][idx], thmm,
+                                NS_PREECHO_ATT2 * pcfact);
+                            thmm = Math.min(thmm, p);
+                        } else if ((sblock != 0 && ns_attacks[chn][sblock - 1] == 3)
+                            || (sblock == 0 && gfc.nsPsy.lastAttacks[chn] == 3)) {
+                            var idx = (sblock != 2) ? sblock + 1 : 0;
+                            var p = NS_INTERP(gfc.thm[chn].s[sb][idx], thmm,
+                                NS_PREECHO_ATT2 * pcfact);
+                            thmm = Math.min(thmm, p);
+                        }
+
+                        /* pulse like signal detection for fatboy.wav and so on */
+                        thmm *= sub_short_factor[chn][sblock];
+
+                        new_thmm[sblock] = thmm;
+                    }
+                    for (var sblock = 0; sblock < 3; sblock++) {
+                        gfc.thm[chn].s[sb][sblock] = new_thmm[sblock];
+                    }
+                }
+            }
+        }
+        for (var chn = 0; chn < n_chn_psy; chn++) {
+            gfc.nsPsy.lastAttacks[chn] = ns_attacks[chn][2];
+        }
+
+        /***************************************************************
+         * determine final block type
+         ***************************************************************/
+        vbrpsy_apply_block_type(gfp, uselongblock, blocktype_d);
+
+        /*********************************************************************
+         * compute the value of PE to return ... no delay and advance
+         *********************************************************************/
+        for (var chn = 0; chn < n_chn_psy; chn++) {
+            var ppe;
+            var ppePos;
+            var type;
+            var mr;
+
+            if (chn > 1) {
+                ppe = percep_MS_entropy;
+                ppePos = -2;
+                type = Encoder.NORM_TYPE;
+                if (blocktype_d[0] == Encoder.SHORT_TYPE
+                    || blocktype_d[1] == Encoder.SHORT_TYPE)
+                    type = Encoder.SHORT_TYPE;
+                mr = masking_MS_ratio[gr_out][chn - 2];
+            } else {
+                ppe = percep_entropy;
+                ppePos = 0;
+                type = blocktype_d[chn];
+                mr = masking_ratio[gr_out][chn];
+            }
+
+            if (type == Encoder.SHORT_TYPE) {
+                ppe[ppePos + chn] = pecalc_s(mr, gfc.masking_lower);
+            } else {
+                ppe[ppePos + chn] = pecalc_l(mr, gfc.masking_lower);
+            }
+
+            if (gfp.analysis) {
+                gfc.pinfo.pe[gr_out][chn] = ppe[ppePos + chn];
+            }
+        }
+        return 0;
+    }
+
+    function s3_func_x(bark, hf_slope) {
+        var tempx = bark, tempy;
+
+        if (tempx >= 0) {
+            tempy = -tempx * 27;
+        } else {
+            tempy = tempx * hf_slope;
+        }
+        if (tempy <= -72.0) {
+            return 0;
+        }
+        return Math.exp(tempy * LN_TO_LOG10);
+    }
+
+    function norm_s3_func_x(hf_slope) {
+        var lim_a = 0, lim_b = 0;
+        {
+            var x = 0, l, h;
+            for (x = 0; s3_func_x(x, hf_slope) > 1e-20; x -= 1)
+                ;
+            l = x;
+            h = 0;
+            while (Math.abs(h - l) > 1e-12) {
+                x = (h + l) / 2;
+                if (s3_func_x(x, hf_slope) > 0) {
+                    h = x;
+                } else {
+                    l = x;
+                }
+            }
+            lim_a = l;
+        }
+        {
+            var x = 0, l, h;
+            for (x = 0; s3_func_x(x, hf_slope) > 1e-20; x += 1)
+                ;
+            l = 0;
+            h = x;
+            while (Math.abs(h - l) > 1e-12) {
+                x = (h + l) / 2;
+                if (s3_func_x(x, hf_slope) > 0) {
+                    l = x;
+                } else {
+                    h = x;
+                }
+            }
+            lim_b = h;
+        }
+        {
+            var sum = 0;
+            var m = 1000;
+            var i;
+            for (i = 0; i <= m; ++i) {
+                var x = lim_a + i * (lim_b - lim_a) / m;
+                var y = s3_func_x(x, hf_slope);
+                sum += y;
+            }
+            {
+                var norm = (m + 1) / (sum * (lim_b - lim_a));
+                /* printf( "norm = %lf\n",norm); */
+                return norm;
+            }
+        }
+    }
+
+    /**
+     *   The spreading function.  Values returned in units of energy
+     */
+    function s3_func(bark) {
+        var tempx, x, tempy, temp;
+        tempx = bark;
+        if (tempx >= 0)
+            tempx *= 3;
+        else
+            tempx *= 1.5;
+
+        if (tempx >= 0.5 && tempx <= 2.5) {
+            temp = tempx - 0.5;
+            x = 8.0 * (temp * temp - 2.0 * temp);
+        } else
+            x = 0.0;
+        tempx += 0.474;
+        tempy = 15.811389 + 7.5 * tempx - 17.5
+            * Math.sqrt(1.0 + tempx * tempx);
+
+        if (tempy <= -60.0)
+            return 0.0;
+
+        tempx = Math.exp((x + tempy) * LN_TO_LOG10);
+
+        /**
+         * <PRE>
+         * Normalization.  The spreading function should be normalized so that:
+         * +inf
+         * /
+         * |  s3 [ bark ]  d(bark)   =  1
+         * /
+         * -inf
+         * </PRE>
+         */
+        tempx /= .6609193;
+        return tempx;
+    }
+
+    /**
+     * see for example "Zwicker: Psychoakustik, 1982; ISBN 3-540-11401-7
+     */
+    function freq2bark(freq) {
+        /* input: freq in hz output: barks */
+        if (freq < 0)
+            freq = 0;
+        freq = freq * 0.001;
+        return 13.0 * Math.atan(.76 * freq) + 3.5
+            * Math.atan(freq * freq / (7.5 * 7.5));
+    }
+
+    function init_numline(numlines, bo, bm, bval, bval_width, mld, bo_w, sfreq, blksize, scalepos, deltafreq, sbmax) {
+        var b_frq = new_float(Encoder.CBANDS + 1);
+        var sample_freq_frac = sfreq / (sbmax > 15 ? 2 * 576 : 2 * 192);
+        var partition = new_int(Encoder.HBLKSIZE);
+        var i;
+        sfreq /= blksize;
+        var j = 0;
+        var ni = 0;
+        /* compute numlines, the number of spectral lines in each partition band */
+        /* each partition band should be about DELBARK wide. */
+        for (i = 0; i < Encoder.CBANDS; i++) {
+            var bark1;
+            var j2;
+            bark1 = freq2bark(sfreq * j);
+
+            b_frq[i] = sfreq * j;
+
+            for (j2 = j; freq2bark(sfreq * j2) - bark1 < DELBARK
+            && j2 <= blksize / 2; j2++)
+                ;
+
+            numlines[i] = j2 - j;
+            ni = i + 1;
+
+            while (j < j2) {
+                partition[j++] = i;
+            }
+            if (j > blksize / 2) {
+                j = blksize / 2;
+                ++i;
+                break;
+            }
+        }
+        b_frq[i] = sfreq * j;
+
+        for (var sfb = 0; sfb < sbmax; sfb++) {
+            var i1, i2, start, end;
+            var arg;
+            start = scalepos[sfb];
+            end = scalepos[sfb + 1];
+
+            i1 = 0 | Math.floor(.5 + deltafreq * (start - .5));
+            if (i1 < 0)
+                i1 = 0;
+            i2 = 0 | Math.floor(.5 + deltafreq * (end - .5));
+
+            if (i2 > blksize / 2)
+                i2 = blksize / 2;
+
+            bm[sfb] = (partition[i1] + partition[i2]) / 2;
+            bo[sfb] = partition[i2];
+            var f_tmp = sample_freq_frac * end;
+            /*
+             * calculate how much of this band belongs to current scalefactor
+             * band
+             */
+            bo_w[sfb] = (f_tmp - b_frq[bo[sfb]])
+                / (b_frq[bo[sfb] + 1] - b_frq[bo[sfb]]);
+            if (bo_w[sfb] < 0) {
+                bo_w[sfb] = 0;
+            } else {
+                if (bo_w[sfb] > 1) {
+                    bo_w[sfb] = 1;
+                }
+            }
+            /* setup stereo demasking thresholds */
+            /* formula reverse enginerred from plot in paper */
+            arg = freq2bark(sfreq * scalepos[sfb] * deltafreq);
+            arg = ( Math.min(arg, 15.5) / 15.5);
+
+            mld[sfb] = Math.pow(10.0,
+                1.25 * (1 - Math.cos(Math.PI * arg)) - 2.5);
+        }
+
+        /* compute bark values of each critical band */
+        j = 0;
+        for (var k = 0; k < ni; k++) {
+            var w = numlines[k];
+            var bark1, bark2;
+
+            bark1 = freq2bark(sfreq * (j));
+            bark2 = freq2bark(sfreq * (j + w - 1));
+            bval[k] = .5 * (bark1 + bark2);
+
+            bark1 = freq2bark(sfreq * (j - .5));
+            bark2 = freq2bark(sfreq * (j + w - .5));
+            bval_width[k] = bark2 - bark1;
+            j += w;
+        }
+
+        return ni;
+    }
+
+    function init_s3_values(s3ind, npart, bval, bval_width, norm, use_old_s3) {
+        var s3 = new_float_n([Encoder.CBANDS, Encoder.CBANDS]);
+        /*
+         * The s3 array is not linear in the bark scale.
+         *
+         * bval[x] should be used to get the bark value.
+         */
+        var j;
+        var numberOfNoneZero = 0;
+
+        /**
+         * <PRE>
+         * s[i][j], the value of the spreading function,
+         * centered at band j (masker), for band i (maskee)
+         *
+         * i.e.: sum over j to spread into signal barkval=i
+         * NOTE: i and j are used opposite as in the ISO docs
+         * </PRE>
+         */
+        if (use_old_s3) {
+            for (var i = 0; i < npart; i++) {
+                for (j = 0; j < npart; j++) {
+                    var v = s3_func(bval[i] - bval[j]) * bval_width[j];
+                    s3[i][j] = v * norm[i];
+                }
+            }
+        } else {
+            for (j = 0; j < npart; j++) {
+                var hf_slope = 15 + Math.min(21 / bval[j], 12);
+                var s3_x_norm = norm_s3_func_x(hf_slope);
+                for (var i = 0; i < npart; i++) {
+                    var v = s3_x_norm
+                        * s3_func_x(bval[i] - bval[j], hf_slope)
+                        * bval_width[j];
+                    s3[i][j] = v * norm[i];
+                }
+            }
+        }
+        for (var i = 0; i < npart; i++) {
+            for (j = 0; j < npart; j++) {
+                if (s3[i][j] > 0.0)
+                    break;
+            }
+            s3ind[i][0] = j;
+
+            for (j = npart - 1; j > 0; j--) {
+                if (s3[i][j] > 0.0)
+                    break;
+            }
+            s3ind[i][1] = j;
+            numberOfNoneZero += (s3ind[i][1] - s3ind[i][0] + 1);
+        }
+
+        var p = new_float(numberOfNoneZero);
+        var k = 0;
+        for (var i = 0; i < npart; i++)
+            for (j = s3ind[i][0]; j <= s3ind[i][1]; j++)
+                p[k++] = s3[i][j];
+
+        return p;
+    }
+
+    function stereo_demask(f) {
+        /* setup stereo demasking thresholds */
+        /* formula reverse enginerred from plot in paper */
+        var arg = freq2bark(f);
+        arg = (Math.min(arg, 15.5) / 15.5);
+
+        return Math.pow(10.0,
+            1.25 * (1 - Math.cos(Math.PI * arg)) - 2.5);
+    }
+
+    /**
+     * NOTE: the bitrate reduction from the inter-channel masking effect is low
+     * compared to the chance of getting annyoing artefacts. L3psycho_anal_vbr
+     * does not use this feature. (Robert 071216)
+     */
+    this.psymodel_init = function (gfp) {
+        var gfc = gfp.internal_flags;
+        var i;
+        var useOldS3 = true;
+        var bvl_a = 13, bvl_b = 24;
+        var snr_l_a = 0, snr_l_b = 0;
+        var snr_s_a = -8.25, snr_s_b = -4.5;
+        var bval = new_float(Encoder.CBANDS);
+        var bval_width = new_float(Encoder.CBANDS);
+        var norm = new_float(Encoder.CBANDS);
+        var sfreq = gfp.out_samplerate;
+
+        switch (gfp.experimentalZ) {
+            default:
+            case 0:
+                useOldS3 = true;
+                break;
+            case 1:
+                useOldS3 = (gfp.VBR == VbrMode.vbr_mtrh || gfp.VBR == VbrMode.vbr_mt) ? false
+                    : true;
+                break;
+            case 2:
+                useOldS3 = false;
+                break;
+            case 3:
+                bvl_a = 8;
+                snr_l_a = -1.75;
+                snr_l_b = -0.0125;
+                snr_s_a = -8.25;
+                snr_s_b = -2.25;
+                break;
+        }
+        gfc.ms_ener_ratio_old = .25;
+        gfc.blocktype_old[0] = gfc.blocktype_old[1] = Encoder.NORM_TYPE;
+        // the vbr header is long blocks
+
+        for (i = 0; i < 4; ++i) {
+            for (var j = 0; j < Encoder.CBANDS; ++j) {
+                gfc.nb_1[i][j] = 1e20;
+                gfc.nb_2[i][j] = 1e20;
+                gfc.nb_s1[i][j] = gfc.nb_s2[i][j] = 1.0;
+            }
+            for (var sb = 0; sb < Encoder.SBMAX_l; sb++) {
+                gfc.en[i].l[sb] = 1e20;
+                gfc.thm[i].l[sb] = 1e20;
+            }
+            for (var j = 0; j < 3; ++j) {
+                for (var sb = 0; sb < Encoder.SBMAX_s; sb++) {
+                    gfc.en[i].s[sb][j] = 1e20;
+                    gfc.thm[i].s[sb][j] = 1e20;
+                }
+                gfc.nsPsy.lastAttacks[i] = 0;
+            }
+            for (var j = 0; j < 9; j++)
+                gfc.nsPsy.last_en_subshort[i][j] = 10.;
+        }
+
+        /* init. for loudness approx. -jd 2001 mar 27 */
+        gfc.loudness_sq_save[0] = gfc.loudness_sq_save[1] = 0.0;
+
+        /*************************************************************************
+         * now compute the psychoacoustic model specific constants
+         ************************************************************************/
+        /* compute numlines, bo, bm, bval, bval_width, mld */
+
+        gfc.npart_l = init_numline(gfc.numlines_l, gfc.bo_l, gfc.bm_l, bval,
+            bval_width, gfc.mld_l, gfc.PSY.bo_l_weight, sfreq,
+            Encoder.BLKSIZE, gfc.scalefac_band.l, Encoder.BLKSIZE
+            / (2.0 * 576), Encoder.SBMAX_l);
+        /* compute the spreading function */
+        for (i = 0; i < gfc.npart_l; i++) {
+            var snr = snr_l_a;
+            if (bval[i] >= bvl_a) {
+                snr = snr_l_b * (bval[i] - bvl_a) / (bvl_b - bvl_a) + snr_l_a
+                    * (bvl_b - bval[i]) / (bvl_b - bvl_a);
+            }
+            norm[i] = Math.pow(10.0, snr / 10.0);
+            if (gfc.numlines_l[i] > 0) {
+                gfc.rnumlines_l[i] = 1.0 / gfc.numlines_l[i];
+            } else {
+                gfc.rnumlines_l[i] = 0;
+            }
+        }
+        gfc.s3_ll = init_s3_values(gfc.s3ind, gfc.npart_l, bval, bval_width,
+            norm, useOldS3);
+
+        /* compute long block specific values, ATH and MINVAL */
+        var j = 0;
+        for (i = 0; i < gfc.npart_l; i++) {
+            var x;
+
+            /* ATH */
+            x = Float.MAX_VALUE;
+            for (var k = 0; k < gfc.numlines_l[i]; k++, j++) {
+                var freq = sfreq * j / (1000.0 * Encoder.BLKSIZE);
+                var level;
+                /*
+                 * ATH below 100 Hz constant, not further climbing
+                 */
+                level = this.ATHformula(freq * 1000, gfp) - 20;
+                // scale to FFT units; returned value is in dB
+                level = Math.pow(10., 0.1 * level);
+                // convert from dB . energy
+                level *= gfc.numlines_l[i];
+                if (x > level)
+                    x = level;
+            }
+            gfc.ATH.cb_l[i] = x;
+
+            /*
+             * MINVAL. For low freq, the strength of the masking is limited by
+             * minval this is an ISO MPEG1 thing, dont know if it is really
+             * needed
+             */
+            /*
+             * FIXME: it does work to reduce low-freq problems in S53-Wind-Sax
+             * and lead-voice samples, but introduces some 3 kbps bit bloat too.
+             * TODO: Further refinement of the shape of this hack.
+             */
+            x = -20 + bval[i] * 20 / 10;
+            if (x > 6) {
+                x = 100;
+            }
+            if (x < -15) {
+                x = -15;
+            }
+            x -= 8.;
+            gfc.minval_l[i] = (Math.pow(10.0, x / 10.) * gfc.numlines_l[i]);
+        }
+
+        /************************************************************************
+         * do the same things for short blocks
+         ************************************************************************/
+        gfc.npart_s = init_numline(gfc.numlines_s, gfc.bo_s, gfc.bm_s, bval,
+            bval_width, gfc.mld_s, gfc.PSY.bo_s_weight, sfreq,
+            Encoder.BLKSIZE_s, gfc.scalefac_band.s, Encoder.BLKSIZE_s
+            / (2.0 * 192), Encoder.SBMAX_s);
+
+        /* SNR formula. short block is normalized by SNR. is it still right ? */
+        j = 0;
+        for (i = 0; i < gfc.npart_s; i++) {
+            var x;
+            var snr = snr_s_a;
+            if (bval[i] >= bvl_a) {
+                snr = snr_s_b * (bval[i] - bvl_a) / (bvl_b - bvl_a) + snr_s_a
+                    * (bvl_b - bval[i]) / (bvl_b - bvl_a);
+            }
+            norm[i] = Math.pow(10.0, snr / 10.0);
+
+            /* ATH */
+            x = Float.MAX_VALUE;
+            for (var k = 0; k < gfc.numlines_s[i]; k++, j++) {
+                var freq = sfreq * j / (1000.0 * Encoder.BLKSIZE_s);
+                var level;
+                /* freq = Min(.1,freq); */
+                /*
+                 * ATH below 100 Hz constant, not
+                 * further climbing
+                 */
+                level = this.ATHformula(freq * 1000, gfp) - 20;
+                // scale to FFT units; returned value is in dB
+                level = Math.pow(10., 0.1 * level);
+                // convert from dB . energy
+                level *= gfc.numlines_s[i];
+                if (x > level)
+                    x = level;
+            }
+            gfc.ATH.cb_s[i] = x;
+
+            /*
+             * MINVAL. For low freq, the strength of the masking is limited by
+             * minval this is an ISO MPEG1 thing, dont know if it is really
+             * needed
+             */
+            x = (-7.0 + bval[i] * 7.0 / 12.0);
+            if (bval[i] > 12) {
+                x *= 1 + Math.log(1 + x) * 3.1;
+            }
+            if (bval[i] < 12) {
+                x *= 1 + Math.log(1 - x) * 2.3;
+            }
+            if (x < -15) {
+                x = -15;
+            }
+            x -= 8;
+            gfc.minval_s[i] = Math.pow(10.0, x / 10)
+                * gfc.numlines_s[i];
+        }
+
+        gfc.s3_ss = init_s3_values(gfc.s3ind_s, gfc.npart_s, bval, bval_width,
+            norm, useOldS3);
+
+        init_mask_add_max_values();
+        fft.init_fft(gfc);
+
+        /* setup temporal masking */
+        gfc.decay = Math.exp(-1.0 * LOG10
+            / (temporalmask_sustain_sec * sfreq / 192.0));
+
+        {
+            var msfix;
+            msfix = NS_MSFIX;
+            if ((gfp.exp_nspsytune & 2) != 0)
+                msfix = 1.0;
+            if (Math.abs(gfp.msfix) > 0.0)
+                msfix = gfp.msfix;
+            gfp.msfix = msfix;
+
+            /*
+             * spread only from npart_l bands. Normally, we use the spreading
+             * function to convolve from npart_l down to npart_l bands
+             */
+            for (var b = 0; b < gfc.npart_l; b++)
+                if (gfc.s3ind[b][1] > gfc.npart_l - 1)
+                    gfc.s3ind[b][1] = gfc.npart_l - 1;
+        }
+
+        /*
+         * prepare for ATH auto adjustment: we want to decrease the ATH by 12 dB
+         * per second
+         */
+        var frame_duration = (576. * gfc.mode_gr / sfreq);
+        gfc.ATH.decay = Math.pow(10., -12. / 10. * frame_duration);
+        gfc.ATH.adjust = 0.01;
+        /* minimum, for leading low loudness */
+        gfc.ATH.adjustLimit = 1.0;
+        /* on lead, allow adjust up to maximum */
+
+
+        if (gfp.ATHtype != -1) {
+            /* compute equal loudness weights (eql_w) */
+            var freq;
+            var freq_inc = gfp.out_samplerate
+                / (Encoder.BLKSIZE);
+            var eql_balance = 0.0;
+            freq = 0.0;
+            for (i = 0; i < Encoder.BLKSIZE / 2; ++i) {
+                /* convert ATH dB to relative power (not dB) */
+                /* to determine eql_w */
+                freq += freq_inc;
+                gfc.ATH.eql_w[i] = 1. / Math.pow(10, this.ATHformula(freq, gfp) / 10);
+                eql_balance += gfc.ATH.eql_w[i];
+            }
+            eql_balance = 1.0 / eql_balance;
+            for (i = Encoder.BLKSIZE / 2; --i >= 0;) { /* scale weights */
+                gfc.ATH.eql_w[i] *= eql_balance;
+            }
+        }
+        {
+            for (var b = j = 0; b < gfc.npart_s; ++b) {
+                for (i = 0; i < gfc.numlines_s[b]; ++i) {
+                    ++j;
+                }
+            }
+            for (var b = j = 0; b < gfc.npart_l; ++b) {
+                for (i = 0; i < gfc.numlines_l[b]; ++i) {
+                    ++j;
+                }
+            }
+        }
+        j = 0;
+        for (i = 0; i < gfc.npart_l; i++) {
+            var freq = sfreq * (j + gfc.numlines_l[i] / 2) / (1.0 * Encoder.BLKSIZE);
+            gfc.mld_cb_l[i] = stereo_demask(freq);
+            j += gfc.numlines_l[i];
+        }
+        for (; i < Encoder.CBANDS; ++i) {
+            gfc.mld_cb_l[i] = 1;
+        }
+        j = 0;
+        for (i = 0; i < gfc.npart_s; i++) {
+            var freq = sfreq * (j + gfc.numlines_s[i] / 2) / (1.0 * Encoder.BLKSIZE_s);
+            gfc.mld_cb_s[i] = stereo_demask(freq);
+            j += gfc.numlines_s[i];
+        }
+        for (; i < Encoder.CBANDS; ++i) {
+            gfc.mld_cb_s[i] = 1;
+        }
+        return 0;
+    }
+
+    /**
+     * Those ATH formulas are returning their minimum value for input = -1
+     */
+    function ATHformula_GB(f, value) {
+        /**
+         * <PRE>
+         *  from Painter & Spanias
+         *           modified by Gabriel Bouvigne to better fit the reality
+         *           ath =    3.640 * pow(f,-0.8)
+         *           - 6.800 * exp(-0.6*pow(f-3.4,2.0))
+         *           + 6.000 * exp(-0.15*pow(f-8.7,2.0))
+         *           + 0.6* 0.001 * pow(f,4.0);
+         *
+         *
+         *           In the past LAME was using the Painter &Spanias formula.
+         *           But we had some recurrent problems with HF content.
+         *           We measured real ATH values, and found the older formula
+         *           to be inaccurate in the higher part. So we made this new
+         *           formula and this solved most of HF problematic test cases.
+         *           The tradeoff is that in VBR mode it increases a lot the
+         *           bitrate.
+         * </PRE>
+         */
+
+        /*
+         * This curve can be adjusted according to the VBR scale: it adjusts
+         * from something close to Painter & Spanias on V9 up to Bouvigne's
+         * formula for V0. This way the VBR bitrate is more balanced according
+         * to the -V value.
+         */
+
+        // the following Hack allows to ask for the lowest value
+        if (f < -.3)
+            f = 3410;
+
+        // convert to khz
+        f /= 1000;
+        f = Math.max(0.1, f);
+        var ath = 3.640 * Math.pow(f, -0.8) - 6.800
+            * Math.exp(-0.6 * Math.pow(f - 3.4, 2.0)) + 6.000
+            * Math.exp(-0.15 * Math.pow(f - 8.7, 2.0))
+            + (0.6 + 0.04 * value) * 0.001 * Math.pow(f, 4.0);
+        return ath;
+    }
+
+    this.ATHformula = function (f, gfp) {
+        var ath;
+        switch (gfp.ATHtype) {
+            case 0:
+                ath = ATHformula_GB(f, 9);
+                break;
+            case 1:
+                // over sensitive, should probably be removed
+                ath = ATHformula_GB(f, -1);
+                break;
+            case 2:
+                ath = ATHformula_GB(f, 0);
+                break;
+            case 3:
+                // modification of GB formula by Roel
+                ath = ATHformula_GB(f, 1) + 6;
+                break;
+            case 4:
+                ath = ATHformula_GB(f, gfp.ATHcurve);
+                break;
+            default:
+                ath = ATHformula_GB(f, 0);
+                break;
+        }
+        return ath;
+    }
+
+}
+
+
+
+function Lame() {
+    var self = this;
+    var LAME_MAXALBUMART = (128 * 1024);
+
+    Lame.V9 = 410;
+    Lame.V8 = 420;
+    Lame.V7 = 430;
+    Lame.V6 = 440;
+    Lame.V5 = 450;
+    Lame.V4 = 460;
+    Lame.V3 = 470;
+    Lame.V2 = 480;
+    Lame.V1 = 490;
+    Lame.V0 = 500;
+
+    /* still there for compatibility */
+
+    Lame.R3MIX = 1000;
+    Lame.STANDARD = 1001;
+    Lame.EXTREME = 1002;
+    Lame.INSANE = 1003;
+    Lame.STANDARD_FAST = 1004;
+    Lame.EXTREME_FAST = 1005;
+    Lame.MEDIUM = 1006;
+    Lame.MEDIUM_FAST = 1007;
+
+    /**
+     * maximum size of mp3buffer needed if you encode at most 1152 samples for
+     * each call to lame_encode_buffer. see lame_encode_buffer() below
+     * (LAME_MAXMP3BUFFER is now obsolete)
+     */
+    var LAME_MAXMP3BUFFER = (16384 + LAME_MAXALBUMART);
+    Lame.LAME_MAXMP3BUFFER = LAME_MAXMP3BUFFER;
+
+    var ga;
+    var bs;
+    var p;
+    var qupvt;
+    var qu;
+    var psy = new PsyModel();
+    var vbr;
+    var ver;
+    var id3;
+    var mpglib;
+    this.enc = new Encoder();
+
+    this.setModules = function (_ga, _bs, _p, _qupvt, _qu, _vbr, _ver, _id3, _mpglib) {
+        ga = _ga;
+        bs = _bs;
+        p = _p;
+        qupvt = _qupvt;
+        qu = _qu;
+        vbr = _vbr;
+        ver = _ver;
+        id3 = _id3;
+        mpglib = _mpglib;
+        this.enc.setModules(bs, psy, qupvt, vbr);
+    }
+
+    /**
+     * PSY Model related stuff
+     */
+    function PSY() {
+        /**
+         * The dbQ stuff.
+         */
+        this.mask_adjust = 0.;
+        /**
+         * The dbQ stuff.
+         */
+        this.mask_adjust_short = 0.;
+        /* at transition from one scalefactor band to next */
+        /**
+         * Band weight long scalefactor bands.
+         */
+        this.bo_l_weight = new_float(Encoder.SBMAX_l);
+        /**
+         * Band weight short scalefactor bands.
+         */
+        this.bo_s_weight = new_float(Encoder.SBMAX_s);
+    }
+
+    function LowPassHighPass() {
+        this.lowerlimit = 0.;
+    }
+
+    function BandPass(bitrate, lPass) {
+        this.lowpass = lPass;
+    }
+
+    var LAME_ID = 0xFFF88E3B;
+
+    function lame_init_old(gfp) {
+        var gfc;
+
+        gfp.class_id = LAME_ID;
+
+        gfc = gfp.internal_flags = new LameInternalFlags();
+
+        /* Global flags. set defaults here for non-zero values */
+        /* see lame.h for description */
+        /*
+         * set integer values to -1 to mean that LAME will compute the best
+         * value, UNLESS the calling program as set it (and the value is no
+         * longer -1)
+         */
+
+        gfp.mode = MPEGMode.NOT_SET;
+        gfp.original = 1;
+        gfp.in_samplerate = 44100;
+        gfp.num_channels = 2;
+        gfp.num_samples = -1;
+
+        gfp.bWriteVbrTag = true;
+        gfp.quality = -1;
+        gfp.short_blocks = null;
+        gfc.subblock_gain = -1;
+
+        gfp.lowpassfreq = 0;
+        gfp.highpassfreq = 0;
+        gfp.lowpasswidth = -1;
+        gfp.highpasswidth = -1;
+
+        gfp.VBR = VbrMode.vbr_off;
+        gfp.VBR_q = 4;
+        gfp.ATHcurve = -1;
+        gfp.VBR_mean_bitrate_kbps = 128;
+        gfp.VBR_min_bitrate_kbps = 0;
+        gfp.VBR_max_bitrate_kbps = 0;
+        gfp.VBR_hard_min = 0;
+        gfc.VBR_min_bitrate = 1;
+        /* not 0 ????? */
+        gfc.VBR_max_bitrate = 13;
+        /* not 14 ????? */
+
+        gfp.quant_comp = -1;
+        gfp.quant_comp_short = -1;
+
+        gfp.msfix = -1;
+
+        gfc.resample_ratio = 1;
+
+        gfc.OldValue[0] = 180;
+        gfc.OldValue[1] = 180;
+        gfc.CurrentStep[0] = 4;
+        gfc.CurrentStep[1] = 4;
+        gfc.masking_lower = 1;
+        gfc.nsPsy.attackthre = -1;
+        gfc.nsPsy.attackthre_s = -1;
+
+        gfp.scale = -1;
+
+        gfp.athaa_type = -1;
+        gfp.ATHtype = -1;
+        /* default = -1 = set in lame_init_params */
+        gfp.athaa_loudapprox = -1;
+        /* 1 = flat loudness approx. (total energy) */
+        /* 2 = equal loudness curve */
+        gfp.athaa_sensitivity = 0.0;
+        /* no offset */
+        gfp.useTemporal = null;
+        gfp.interChRatio = -1;
+
+        /*
+         * The reason for int mf_samples_to_encode = ENCDELAY + POSTDELAY;
+         * ENCDELAY = internal encoder delay. And then we have to add
+         * POSTDELAY=288 because of the 50% MDCT overlap. A 576 MDCT granule
+         * decodes to 1152 samples. To synthesize the 576 samples centered under
+         * this granule we need the previous granule for the first 288 samples
+         * (no problem), and the next granule for the next 288 samples (not
+         * possible if this is last granule). So we need to pad with 288 samples
+         * to make sure we can encode the 576 samples we are interested in.
+         */
+        gfc.mf_samples_to_encode = Encoder.ENCDELAY + Encoder.POSTDELAY;
+        gfp.encoder_padding = 0;
+        gfc.mf_size = Encoder.ENCDELAY - Encoder.MDCTDELAY;
+        /*
+         * we pad input with this many 0's
+         */
+
+        gfp.findReplayGain = false;
+        gfp.decode_on_the_fly = false;
+
+        gfc.decode_on_the_fly = false;
+        gfc.findReplayGain = false;
+        gfc.findPeakSample = false;
+
+        gfc.RadioGain = 0;
+        gfc.AudiophileGain = 0;
+        gfc.noclipGainChange = 0;
+        gfc.noclipScale = -1.0;
+
+        gfp.preset = 0;
+
+        gfp.write_id3tag_automatic = true;
+        return 0;
+    }
+
+    this.lame_init = function () {
+        var gfp = new LameGlobalFlags();
+
+        var ret = lame_init_old(gfp);
+        if (ret != 0) {
+            return null;
+        }
+
+        gfp.lame_allocated_gfp = 1;
+        return gfp;
+    }
+
+    function filter_coef(x) {
+        if (x > 1.0)
+            return 0.0;
+        if (x <= 0.0)
+            return 1.0;
+
+        return Math.cos(Math.PI / 2 * x);
+    }
+
+    this.nearestBitrateFullIndex = function (bitrate) {
+        /* borrowed from DM abr presets */
+
+        var full_bitrate_table = [8, 16, 24, 32, 40, 48, 56, 64, 80,
+            96, 112, 128, 160, 192, 224, 256, 320];
+
+        var lower_range = 0, lower_range_kbps = 0, upper_range = 0, upper_range_kbps = 0;
+
+        /* We assume specified bitrate will be 320kbps */
+        upper_range_kbps = full_bitrate_table[16];
+        upper_range = 16;
+        lower_range_kbps = full_bitrate_table[16];
+        lower_range = 16;
+
+        /*
+         * Determine which significant bitrates the value specified falls
+         * between, if loop ends without breaking then we were correct above
+         * that the value was 320
+         */
+        for (var b = 0; b < 16; b++) {
+            if ((Math.max(bitrate, full_bitrate_table[b + 1])) != bitrate) {
+                upper_range_kbps = full_bitrate_table[b + 1];
+                upper_range = b + 1;
+                lower_range_kbps = full_bitrate_table[b];
+                lower_range = (b);
+                break;
+                /* We found upper range */
+            }
+        }
+
+        /* Determine which range the value specified is closer to */
+        if ((upper_range_kbps - bitrate) > (bitrate - lower_range_kbps)) {
+            return lower_range;
+        }
+        return upper_range;
+    }
+
+    function optimum_samplefreq(lowpassfreq, input_samplefreq) {
+        /*
+         * Rules:
+         *
+         * - if possible, sfb21 should NOT be used
+         */
+        var suggested_samplefreq = 44100;
+
+        if (input_samplefreq >= 48000)
+            suggested_samplefreq = 48000;
+        else if (input_samplefreq >= 44100)
+            suggested_samplefreq = 44100;
+        else if (input_samplefreq >= 32000)
+            suggested_samplefreq = 32000;
+        else if (input_samplefreq >= 24000)
+            suggested_samplefreq = 24000;
+        else if (input_samplefreq >= 22050)
+            suggested_samplefreq = 22050;
+        else if (input_samplefreq >= 16000)
+            suggested_samplefreq = 16000;
+        else if (input_samplefreq >= 12000)
+            suggested_samplefreq = 12000;
+        else if (input_samplefreq >= 11025)
+            suggested_samplefreq = 11025;
+        else if (input_samplefreq >= 8000)
+            suggested_samplefreq = 8000;
+
+        if (lowpassfreq == -1)
+            return suggested_samplefreq;
+
+        if (lowpassfreq <= 15960)
+            suggested_samplefreq = 44100;
+        if (lowpassfreq <= 15250)
+            suggested_samplefreq = 32000;
+        if (lowpassfreq <= 11220)
+            suggested_samplefreq = 24000;
+        if (lowpassfreq <= 9970)
+            suggested_samplefreq = 22050;
+        if (lowpassfreq <= 7230)
+            suggested_samplefreq = 16000;
+        if (lowpassfreq <= 5420)
+            suggested_samplefreq = 12000;
+        if (lowpassfreq <= 4510)
+            suggested_samplefreq = 11025;
+        if (lowpassfreq <= 3970)
+            suggested_samplefreq = 8000;
+
+        if (input_samplefreq < suggested_samplefreq) {
+            /*
+             * choose a valid MPEG sample frequency above the input sample
+             * frequency to avoid SFB21/12 bitrate bloat rh 061115
+             */
+            if (input_samplefreq > 44100) {
+                return 48000;
+            }
+            if (input_samplefreq > 32000) {
+                return 44100;
+            }
+            if (input_samplefreq > 24000) {
+                return 32000;
+            }
+            if (input_samplefreq > 22050) {
+                return 24000;
+            }
+            if (input_samplefreq > 16000) {
+                return 22050;
+            }
+            if (input_samplefreq > 12000) {
+                return 16000;
+            }
+            if (input_samplefreq > 11025) {
+                return 12000;
+            }
+            if (input_samplefreq > 8000) {
+                return 11025;
+            }
+            return 8000;
+        }
+        return suggested_samplefreq;
+    }
+
+    /**
+     * convert samp freq in Hz to index
+     */
+    function SmpFrqIndex(sample_freq, gpf) {
+        switch (sample_freq) {
+            case 44100:
+                gpf.version = 1;
+                return 0;
+            case 48000:
+                gpf.version = 1;
+                return 1;
+            case 32000:
+                gpf.version = 1;
+                return 2;
+            case 22050:
+                gpf.version = 0;
+                return 0;
+            case 24000:
+                gpf.version = 0;
+                return 1;
+            case 16000:
+                gpf.version = 0;
+                return 2;
+            case 11025:
+                gpf.version = 0;
+                return 0;
+            case 12000:
+                gpf.version = 0;
+                return 1;
+            case 8000:
+                gpf.version = 0;
+                return 2;
+            default:
+                gpf.version = 0;
+                return -1;
+        }
+    }
+
+    /**
+     * @param bRate
+     *            legal rates from 8 to 320
+     */
+    function FindNearestBitrate(bRate, version, samplerate) {
+        /* MPEG-1 or MPEG-2 LSF */
+        if (samplerate < 16000)
+            version = 2;
+
+        var bitrate = Tables.bitrate_table[version][1];
+
+        for (var i = 2; i <= 14; i++) {
+            if (Tables.bitrate_table[version][i] > 0) {
+                if (Math.abs(Tables.bitrate_table[version][i] - bRate) < Math
+                        .abs(bitrate - bRate))
+                    bitrate = Tables.bitrate_table[version][i];
+            }
+        }
+        return bitrate;
+    }
+
+    /**
+     * @param bRate
+     *            legal rates from 32 to 448 kbps
+     * @param version
+     *            MPEG-1 or MPEG-2/2.5 LSF
+     */
+    function BitrateIndex(bRate, version, samplerate) {
+        /* convert bitrate in kbps to index */
+        if (samplerate < 16000)
+            version = 2;
+        for (var i = 0; i <= 14; i++) {
+            if (Tables.bitrate_table[version][i] > 0) {
+                if (Tables.bitrate_table[version][i] == bRate) {
+                    return i;
+                }
+            }
+        }
+        return -1;
+    }
+
+    function optimum_bandwidth(lh, bitrate) {
+        /**
+         * <PRE>
+         *  Input:
+         *      bitrate     total bitrate in kbps
+         *
+         *   Output:
+         *      lowerlimit: best lowpass frequency limit for input filter in Hz
+         *      upperlimit: best highpass frequency limit for input filter in Hz
+         * </PRE>
+         */
+        var freq_map = [new BandPass(8, 2000),
+            new BandPass(16, 3700), new BandPass(24, 3900),
+            new BandPass(32, 5500), new BandPass(40, 7000),
+            new BandPass(48, 7500), new BandPass(56, 10000),
+            new BandPass(64, 11000), new BandPass(80, 13500),
+            new BandPass(96, 15100), new BandPass(112, 15600),
+            new BandPass(128, 17000), new BandPass(160, 17500),
+            new BandPass(192, 18600), new BandPass(224, 19400),
+            new BandPass(256, 19700), new BandPass(320, 20500)];
+
+        var table_index = self.nearestBitrateFullIndex(bitrate);
+        lh.lowerlimit = freq_map[table_index].lowpass;
+    }
+
+    function lame_init_params_ppflt(gfp) {
+        var gfc = gfp.internal_flags;
+        /***************************************************************/
+        /* compute info needed for polyphase filter (filter type==0, default) */
+        /***************************************************************/
+
+        var lowpass_band = 32;
+        var highpass_band = -1;
+
+        if (gfc.lowpass1 > 0) {
+            var minband = 999;
+            for (var band = 0; band <= 31; band++) {
+                var freq = (band / 31.0);
+                /* this band and above will be zeroed: */
+                if (freq >= gfc.lowpass2) {
+                    lowpass_band = Math.min(lowpass_band, band);
+                }
+                if (gfc.lowpass1 < freq && freq < gfc.lowpass2) {
+                    minband = Math.min(minband, band);
+                }
+            }
+
+            /*
+             * compute the *actual* transition band implemented by the polyphase
+             * filter
+             */
+            if (minband == 999) {
+                gfc.lowpass1 = (lowpass_band - .75) / 31.0;
+            } else {
+                gfc.lowpass1 = (minband - .75) / 31.0;
+            }
+            gfc.lowpass2 = lowpass_band / 31.0;
+        }
+
+        /*
+         * make sure highpass filter is within 90% of what the effective
+         * highpass frequency will be
+         */
+        if (gfc.highpass2 > 0) {
+            if (gfc.highpass2 < .9 * (.75 / 31.0)) {
+                gfc.highpass1 = 0;
+                gfc.highpass2 = 0;
+                System.err.println("Warning: highpass filter disabled.  "
+                    + "highpass frequency too small\n");
+            }
+        }
+
+        if (gfc.highpass2 > 0) {
+            var maxband = -1;
+            for (var band = 0; band <= 31; band++) {
+                var freq = band / 31.0;
+                /* this band and below will be zereod */
+                if (freq <= gfc.highpass1) {
+                    highpass_band = Math.max(highpass_band, band);
+                }
+                if (gfc.highpass1 < freq && freq < gfc.highpass2) {
+                    maxband = Math.max(maxband, band);
+                }
+            }
+            /*
+             * compute the *actual* transition band implemented by the polyphase
+             * filter
+             */
+            gfc.highpass1 = highpass_band / 31.0;
+            if (maxband == -1) {
+                gfc.highpass2 = (highpass_band + .75) / 31.0;
+            } else {
+                gfc.highpass2 = (maxband + .75) / 31.0;
+            }
+        }
+
+        for (var band = 0; band < 32; band++) {
+            var fc1, fc2;
+            var freq = band / 31.0;
+            if (gfc.highpass2 > gfc.highpass1) {
+                fc1 = filter_coef((gfc.highpass2 - freq)
+                    / (gfc.highpass2 - gfc.highpass1 + 1e-20));
+            } else {
+                fc1 = 1.0;
+            }
+            if (gfc.lowpass2 > gfc.lowpass1) {
+                fc2 = filter_coef((freq - gfc.lowpass1)
+                    / (gfc.lowpass2 - gfc.lowpass1 + 1e-20));
+            } else {
+                fc2 = 1.0;
+            }
+            gfc.amp_filter[band] = (fc1 * fc2);
+        }
+    }
+
+    function lame_init_qval(gfp) {
+        var gfc = gfp.internal_flags;
+
+        switch (gfp.quality) {
+            default:
+            case 9: /* no psymodel, no noise shaping */
+                gfc.psymodel = 0;
+                gfc.noise_shaping = 0;
+                gfc.noise_shaping_amp = 0;
+                gfc.noise_shaping_stop = 0;
+                gfc.use_best_huffman = 0;
+                gfc.full_outer_loop = 0;
+                break;
+
+            case 8:
+                gfp.quality = 7;
+            //$FALL-THROUGH$
+            case 7:
+                /*
+                 * use psymodel (for short block and m/s switching), but no noise
+                 * shapping
+                 */
+                gfc.psymodel = 1;
+                gfc.noise_shaping = 0;
+                gfc.noise_shaping_amp = 0;
+                gfc.noise_shaping_stop = 0;
+                gfc.use_best_huffman = 0;
+                gfc.full_outer_loop = 0;
+                break;
+
+            case 6:
+                gfc.psymodel = 1;
+                if (gfc.noise_shaping == 0)
+                    gfc.noise_shaping = 1;
+                gfc.noise_shaping_amp = 0;
+                gfc.noise_shaping_stop = 0;
+                if (gfc.subblock_gain == -1)
+                    gfc.subblock_gain = 1;
+                gfc.use_best_huffman = 0;
+                gfc.full_outer_loop = 0;
+                break;
+
+            case 5:
+                gfc.psymodel = 1;
+                if (gfc.noise_shaping == 0)
+                    gfc.noise_shaping = 1;
+                gfc.noise_shaping_amp = 0;
+                gfc.noise_shaping_stop = 0;
+                if (gfc.subblock_gain == -1)
+                    gfc.subblock_gain = 1;
+                gfc.use_best_huffman = 0;
+                gfc.full_outer_loop = 0;
+                break;
+
+            case 4:
+                gfc.psymodel = 1;
+                if (gfc.noise_shaping == 0)
+                    gfc.noise_shaping = 1;
+                gfc.noise_shaping_amp = 0;
+                gfc.noise_shaping_stop = 0;
+                if (gfc.subblock_gain == -1)
+                    gfc.subblock_gain = 1;
+                gfc.use_best_huffman = 1;
+                gfc.full_outer_loop = 0;
+                break;
+
+            case 3:
+                gfc.psymodel = 1;
+                if (gfc.noise_shaping == 0)
+                    gfc.noise_shaping = 1;
+                gfc.noise_shaping_amp = 1;
+                gfc.noise_shaping_stop = 1;
+                if (gfc.subblock_gain == -1)
+                    gfc.subblock_gain = 1;
+                gfc.use_best_huffman = 1;
+                gfc.full_outer_loop = 0;
+                break;
+
+            case 2:
+                gfc.psymodel = 1;
+                if (gfc.noise_shaping == 0)
+                    gfc.noise_shaping = 1;
+                if (gfc.substep_shaping == 0)
+                    gfc.substep_shaping = 2;
+                gfc.noise_shaping_amp = 1;
+                gfc.noise_shaping_stop = 1;
+                if (gfc.subblock_gain == -1)
+                    gfc.subblock_gain = 1;
+                gfc.use_best_huffman = 1;
+                /* inner loop */
+                gfc.full_outer_loop = 0;
+                break;
+
+            case 1:
+                gfc.psymodel = 1;
+                if (gfc.noise_shaping == 0)
+                    gfc.noise_shaping = 1;
+                if (gfc.substep_shaping == 0)
+                    gfc.substep_shaping = 2;
+                gfc.noise_shaping_amp = 2;
+                gfc.noise_shaping_stop = 1;
+                if (gfc.subblock_gain == -1)
+                    gfc.subblock_gain = 1;
+                gfc.use_best_huffman = 1;
+                gfc.full_outer_loop = 0;
+                break;
+
+            case 0:
+                gfc.psymodel = 1;
+                if (gfc.noise_shaping == 0)
+                    gfc.noise_shaping = 1;
+                if (gfc.substep_shaping == 0)
+                    gfc.substep_shaping = 2;
+                gfc.noise_shaping_amp = 2;
+                gfc.noise_shaping_stop = 1;
+                if (gfc.subblock_gain == -1)
+                    gfc.subblock_gain = 1;
+                gfc.use_best_huffman = 1;
+                /*
+                 * type 2 disabled because of it slowness, in favor of full outer
+                 * loop search
+                 */
+                gfc.full_outer_loop = 0;
+                /*
+                 * full outer loop search disabled because of audible distortions it
+                 * may generate rh 060629
+                 */
+                break;
+        }
+
+    }
+
+    function lame_init_bitstream(gfp) {
+        var gfc = gfp.internal_flags;
+        gfp.frameNum = 0;
+
+        if (gfp.write_id3tag_automatic) {
+            id3.id3tag_write_v2(gfp);
+        }
+        /* initialize histogram data optionally used by frontend */
+
+        gfc.bitrate_stereoMode_Hist = new_int_n([16, 4 + 1]);
+        gfc.bitrate_blockType_Hist = new_int_n([16, 4 + 1 + 1]);
+
+        gfc.PeakSample = 0.0;
+
+        /* Write initial VBR Header to bitstream and init VBR data */
+        if (gfp.bWriteVbrTag)
+            vbr.InitVbrTag(gfp);
+    }
+
+    /********************************************************************
+     * initialize internal params based on data in gf (globalflags struct filled
+     * in by calling program)
+     *
+     * OUTLINE:
+     *
+     * We first have some complex code to determine bitrate, output samplerate
+     * and mode. It is complicated by the fact that we allow the user to set
+     * some or all of these parameters, and need to determine best possible
+     * values for the rest of them:
+     *
+     * 1. set some CPU related flags 2. check if we are mono.mono, stereo.mono
+     * or stereo.stereo 3. compute bitrate and output samplerate: user may have
+     * set compression ratio user may have set a bitrate user may have set a
+     * output samplerate 4. set some options which depend on output samplerate
+     * 5. compute the actual compression ratio 6. set mode based on compression
+     * ratio
+     *
+     * The remaining code is much simpler - it just sets options based on the
+     * mode & compression ratio:
+     *
+     * set allow_diff_short based on mode select lowpass filter based on
+     * compression ratio & mode set the bitrate index, and min/max bitrates for
+     * VBR modes disable VBR tag if it is not appropriate initialize the
+     * bitstream initialize scalefac_band data set sideinfo_len (based on
+     * channels, CRC, out_samplerate) write an id3v2 tag into the bitstream
+     * write VBR tag into the bitstream set mpeg1/2 flag estimate the number of
+     * frames (based on a lot of data)
+     *
+     * now we set more flags: nspsytune: see code VBR modes see code CBR/ABR see
+     * code
+     *
+     * Finally, we set the algorithm flags based on the gfp.quality value
+     * lame_init_qval(gfp);
+     *
+     ********************************************************************/
+    this.lame_init_params = function (gfp) {
+        var gfc = gfp.internal_flags;
+
+        gfc.Class_ID = 0;
+        if (gfc.ATH == null)
+            gfc.ATH = new ATH();
+        if (gfc.PSY == null)
+            gfc.PSY = new PSY();
+        if (gfc.rgdata == null)
+            gfc.rgdata = new ReplayGain();
+
+        gfc.channels_in = gfp.num_channels;
+        if (gfc.channels_in == 1)
+            gfp.mode = MPEGMode.MONO;
+        gfc.channels_out = (gfp.mode == MPEGMode.MONO) ? 1 : 2;
+        gfc.mode_ext = Encoder.MPG_MD_MS_LR;
+        if (gfp.mode == MPEGMode.MONO)
+            gfp.force_ms = false;
+        /*
+         * don't allow forced mid/side stereo for mono output
+         */
+
+        if (gfp.VBR == VbrMode.vbr_off && gfp.VBR_mean_bitrate_kbps != 128
+            && gfp.brate == 0)
+            gfp.brate = gfp.VBR_mean_bitrate_kbps;
+
+        if (gfp.VBR == VbrMode.vbr_off || gfp.VBR == VbrMode.vbr_mtrh
+            || gfp.VBR == VbrMode.vbr_mt) {
+            /* these modes can handle free format condition */
+        } else {
+            gfp.free_format = false;
+            /* mode can't be mixed with free format */
+        }
+
+        if (gfp.VBR == VbrMode.vbr_off && gfp.brate == 0) {
+            /* no bitrate or compression ratio specified, use 11.025 */
+            if (BitStream.EQ(gfp.compression_ratio, 0))
+                gfp.compression_ratio = 11.025;
+            /*
+             * rate to compress a CD down to exactly 128000 bps
+             */
+        }
+
+        /* find bitrate if user specify a compression ratio */
+        if (gfp.VBR == VbrMode.vbr_off && gfp.compression_ratio > 0) {
+
+            if (gfp.out_samplerate == 0)
+                gfp.out_samplerate = map2MP3Frequency((int)(0.97 * gfp.in_samplerate));
+            /*
+             * round up with a margin of 3 %
+             */
+
+            /*
+             * choose a bitrate for the output samplerate which achieves
+             * specified compression ratio
+             */
+            gfp.brate = 0 | (gfp.out_samplerate * 16 * gfc.channels_out / (1.e3 * gfp.compression_ratio));
+
+            /* we need the version for the bitrate table look up */
+            gfc.samplerate_index = SmpFrqIndex(gfp.out_samplerate, gfp);
+
+            if (!gfp.free_format) /*
+             * for non Free Format find the nearest allowed
+             * bitrate
+             */
+                gfp.brate = FindNearestBitrate(gfp.brate, gfp.version,
+                    gfp.out_samplerate);
+        }
+
+        if (gfp.out_samplerate != 0) {
+            if (gfp.out_samplerate < 16000) {
+                gfp.VBR_mean_bitrate_kbps = Math.max(gfp.VBR_mean_bitrate_kbps,
+                    8);
+                gfp.VBR_mean_bitrate_kbps = Math.min(gfp.VBR_mean_bitrate_kbps,
+                    64);
+            } else if (gfp.out_samplerate < 32000) {
+                gfp.VBR_mean_bitrate_kbps = Math.max(gfp.VBR_mean_bitrate_kbps,
+                    8);
+                gfp.VBR_mean_bitrate_kbps = Math.min(gfp.VBR_mean_bitrate_kbps,
+                    160);
+            } else {
+                gfp.VBR_mean_bitrate_kbps = Math.max(gfp.VBR_mean_bitrate_kbps,
+                    32);
+                gfp.VBR_mean_bitrate_kbps = Math.min(gfp.VBR_mean_bitrate_kbps,
+                    320);
+            }
+        }
+
+        /****************************************************************/
+        /* if a filter has not been enabled, see if we should add one: */
+        /****************************************************************/
+        if (gfp.lowpassfreq == 0) {
+            var lowpass = 16000.;
+
+            switch (gfp.VBR) {
+                case VbrMode.vbr_off:
+                {
+                    var lh = new LowPassHighPass();
+                    optimum_bandwidth(lh, gfp.brate);
+                    lowpass = lh.lowerlimit;
+                    break;
+                }
+                case VbrMode.vbr_abr:
+                {
+                    var lh = new LowPassHighPass();
+                    optimum_bandwidth(lh, gfp.VBR_mean_bitrate_kbps);
+                    lowpass = lh.lowerlimit;
+                    break;
+                }
+                case VbrMode.vbr_rh:
+                {
+                    var x = [19500, 19000, 18600, 18000, 17500, 16000,
+                        15600, 14900, 12500, 10000, 3950];
+                    if (0 <= gfp.VBR_q && gfp.VBR_q <= 9) {
+                        var a = x[gfp.VBR_q], b = x[gfp.VBR_q + 1], m = gfp.VBR_q_frac;
+                        lowpass = linear_int(a, b, m);
+                    } else {
+                        lowpass = 19500;
+                    }
+                    break;
+                }
+                default:
+                {
+                    var x = [19500, 19000, 18500, 18000, 17500, 16500,
+                        15500, 14500, 12500, 9500, 3950];
+                    if (0 <= gfp.VBR_q && gfp.VBR_q <= 9) {
+                        var a = x[gfp.VBR_q], b = x[gfp.VBR_q + 1], m = gfp.VBR_q_frac;
+                        lowpass = linear_int(a, b, m);
+                    } else {
+                        lowpass = 19500;
+                    }
+                }
+            }
+            if (gfp.mode == MPEGMode.MONO
+                && (gfp.VBR == VbrMode.vbr_off || gfp.VBR == VbrMode.vbr_abr))
+                lowpass *= 1.5;
+
+            gfp.lowpassfreq = lowpass | 0;
+        }
+
+        if (gfp.out_samplerate == 0) {
+            if (2 * gfp.lowpassfreq > gfp.in_samplerate) {
+                gfp.lowpassfreq = gfp.in_samplerate / 2;
+            }
+            gfp.out_samplerate = optimum_samplefreq(gfp.lowpassfreq | 0,
+                gfp.in_samplerate);
+        }
+
+        gfp.lowpassfreq = Math.min(20500, gfp.lowpassfreq);
+        gfp.lowpassfreq = Math.min(gfp.out_samplerate / 2, gfp.lowpassfreq);
+
+        if (gfp.VBR == VbrMode.vbr_off) {
+            gfp.compression_ratio = gfp.out_samplerate * 16 * gfc.channels_out
+                / (1.e3 * gfp.brate);
+        }
+        if (gfp.VBR == VbrMode.vbr_abr) {
+            gfp.compression_ratio = gfp.out_samplerate * 16 * gfc.channels_out
+                / (1.e3 * gfp.VBR_mean_bitrate_kbps);
+        }
+
+        /*
+         * do not compute ReplayGain values and do not find the peak sample if
+         * we can't store them
+         */
+        if (!gfp.bWriteVbrTag) {
+            gfp.findReplayGain = false;
+            gfp.decode_on_the_fly = false;
+            gfc.findPeakSample = false;
+        }
+        gfc.findReplayGain = gfp.findReplayGain;
+        gfc.decode_on_the_fly = gfp.decode_on_the_fly;
+
+        if (gfc.decode_on_the_fly)
+            gfc.findPeakSample = true;
+
+        if (gfc.findReplayGain) {
+            if (ga.InitGainAnalysis(gfc.rgdata, gfp.out_samplerate) == GainAnalysis.INIT_GAIN_ANALYSIS_ERROR) {
+                gfp.internal_flags = null;
+                return -6;
+            }
+        }
+
+        if (gfc.decode_on_the_fly && !gfp.decode_only) {
+            if (gfc.hip != null) {
+                mpglib.hip_decode_exit(gfc.hip);
+            }
+            gfc.hip = mpglib.hip_decode_init();
+        }
+
+        gfc.mode_gr = gfp.out_samplerate <= 24000 ? 1 : 2;
+        /*
+         * Number of granules per frame
+         */
+        gfp.framesize = 576 * gfc.mode_gr;
+        gfp.encoder_delay = Encoder.ENCDELAY;
+
+        gfc.resample_ratio = gfp.in_samplerate / gfp.out_samplerate;
+
+        /**
+         * <PRE>
+         *  sample freq       bitrate     compression ratio
+         *     [kHz]      [kbps/channel]   for 16 bit input
+         *     44.1            56               12.6
+         *     44.1            64               11.025
+         *     44.1            80                8.82
+         *     22.05           24               14.7
+         *     22.05           32               11.025
+         *     22.05           40                8.82
+         *     16              16               16.0
+         *     16              24               10.667
+         * </PRE>
+         */
+        /**
+         * <PRE>
+         *  For VBR, take a guess at the compression_ratio.
+         *  For example:
+         *
+         *    VBR_q    compression     like
+         *     -        4.4         320 kbps/44 kHz
+         *   0...1      5.5         256 kbps/44 kHz
+         *     2        7.3         192 kbps/44 kHz
+         *     4        8.8         160 kbps/44 kHz
+         *     6       11           128 kbps/44 kHz
+         *     9       14.7          96 kbps
+         *
+         *  for lower bitrates, downsample with --resample
+         * </PRE>
+         */
+        switch (gfp.VBR) {
+            case VbrMode.vbr_mt:
+            case VbrMode.vbr_rh:
+            case VbrMode.vbr_mtrh:
+            {
+                /* numbers are a bit strange, but they determine the lowpass value */
+                var cmp = [5.7, 6.5, 7.3, 8.2, 10, 11.9, 13, 14,
+                    15, 16.5];
+                gfp.compression_ratio = cmp[gfp.VBR_q];
+            }
+                break;
+            case VbrMode.vbr_abr:
+                gfp.compression_ratio = gfp.out_samplerate * 16 * gfc.channels_out
+                    / (1.e3 * gfp.VBR_mean_bitrate_kbps);
+                break;
+            default:
+                gfp.compression_ratio = gfp.out_samplerate * 16 * gfc.channels_out
+                    / (1.e3 * gfp.brate);
+                break;
+        }
+
+        /*
+         * mode = -1 (not set by user) or mode = MONO (because of only 1 input
+         * channel). If mode has not been set, then select J-STEREO
+         */
+        if (gfp.mode == MPEGMode.NOT_SET) {
+            gfp.mode = MPEGMode.JOINT_STEREO;
+        }
+
+        /* apply user driven high pass filter */
+        if (gfp.highpassfreq > 0) {
+            gfc.highpass1 = 2. * gfp.highpassfreq;
+
+            if (gfp.highpasswidth >= 0)
+                gfc.highpass2 = 2. * (gfp.highpassfreq + gfp.highpasswidth);
+            else
+            /* 0% above on default */
+                gfc.highpass2 = (1 + 0.00) * 2. * gfp.highpassfreq;
+
+            gfc.highpass1 /= gfp.out_samplerate;
+            gfc.highpass2 /= gfp.out_samplerate;
+        } else {
+            gfc.highpass1 = 0;
+            gfc.highpass2 = 0;
+        }
+        /* apply user driven low pass filter */
+        if (gfp.lowpassfreq > 0) {
+            gfc.lowpass2 = 2. * gfp.lowpassfreq;
+            if (gfp.lowpasswidth >= 0) {
+                gfc.lowpass1 = 2. * (gfp.lowpassfreq - gfp.lowpasswidth);
+                if (gfc.lowpass1 < 0) /* has to be >= 0 */
+                    gfc.lowpass1 = 0;
+            } else { /* 0% below on default */
+                gfc.lowpass1 = (1 - 0.00) * 2. * gfp.lowpassfreq;
+            }
+            gfc.lowpass1 /= gfp.out_samplerate;
+            gfc.lowpass2 /= gfp.out_samplerate;
+        } else {
+            gfc.lowpass1 = 0;
+            gfc.lowpass2 = 0;
+        }
+
+        /**********************************************************************/
+        /* compute info needed for polyphase filter (filter type==0, default) */
+        /**********************************************************************/
+        lame_init_params_ppflt(gfp);
+        /*******************************************************
+         * samplerate and bitrate index
+         *******************************************************/
+        gfc.samplerate_index = SmpFrqIndex(gfp.out_samplerate, gfp);
+        if (gfc.samplerate_index < 0) {
+            gfp.internal_flags = null;
+            return -1;
+        }
+
+        if (gfp.VBR == VbrMode.vbr_off) {
+            if (gfp.free_format) {
+                gfc.bitrate_index = 0;
+            } else {
+                gfp.brate = FindNearestBitrate(gfp.brate, gfp.version,
+                    gfp.out_samplerate);
+                gfc.bitrate_index = BitrateIndex(gfp.brate, gfp.version,
+                    gfp.out_samplerate);
+                if (gfc.bitrate_index <= 0) {
+                    gfp.internal_flags = null;
+                    return -1;
+                }
+            }
+        } else {
+            gfc.bitrate_index = 1;
+        }
+
+        /* for CBR, we will write an "info" tag. */
+
+        if (gfp.analysis)
+            gfp.bWriteVbrTag = false;
+
+        /* some file options not allowed if output is: not specified or stdout */
+        if (gfc.pinfo != null)
+            gfp.bWriteVbrTag = false;
+        /* disable Xing VBR tag */
+
+        bs.init_bit_stream_w(gfc);
+
+        var j = gfc.samplerate_index + (3 * gfp.version) + 6
+            * (gfp.out_samplerate < 16000 ? 1 : 0);
+        for (var i = 0; i < Encoder.SBMAX_l + 1; i++)
+            gfc.scalefac_band.l[i] = qupvt.sfBandIndex[j].l[i];
+
+        for (var i = 0; i < Encoder.PSFB21 + 1; i++) {
+            var size = (gfc.scalefac_band.l[22] - gfc.scalefac_band.l[21])
+                / Encoder.PSFB21;
+            var start = gfc.scalefac_band.l[21] + i * size;
+            gfc.scalefac_band.psfb21[i] = start;
+        }
+        gfc.scalefac_band.psfb21[Encoder.PSFB21] = 576;
+
+        for (var i = 0; i < Encoder.SBMAX_s + 1; i++)
+            gfc.scalefac_band.s[i] = qupvt.sfBandIndex[j].s[i];
+
+        for (var i = 0; i < Encoder.PSFB12 + 1; i++) {
+            var size = (gfc.scalefac_band.s[13] - gfc.scalefac_band.s[12])
+                / Encoder.PSFB12;
+            var start = gfc.scalefac_band.s[12] + i * size;
+            gfc.scalefac_band.psfb12[i] = start;
+        }
+        gfc.scalefac_band.psfb12[Encoder.PSFB12] = 192;
+        /* determine the mean bitrate for main data */
+        if (gfp.version == 1) /* MPEG 1 */
+            gfc.sideinfo_len = (gfc.channels_out == 1) ? 4 + 17 : 4 + 32;
+        else
+        /* MPEG 2 */
+            gfc.sideinfo_len = (gfc.channels_out == 1) ? 4 + 9 : 4 + 17;
+
+        if (gfp.error_protection)
+            gfc.sideinfo_len += 2;
+
+        lame_init_bitstream(gfp);
+
+        gfc.Class_ID = LAME_ID;
+
+        {
+            var k;
+
+            for (k = 0; k < 19; k++)
+                gfc.nsPsy.pefirbuf[k] = 700 * gfc.mode_gr * gfc.channels_out;
+
+            if (gfp.ATHtype == -1)
+                gfp.ATHtype = 4;
+        }
+
+        switch (gfp.VBR) {
+
+            case VbrMode.vbr_mt:
+                gfp.VBR = VbrMode.vbr_mtrh;
+            //$FALL-THROUGH$
+            case VbrMode.vbr_mtrh:
+            {
+                if (gfp.useTemporal == null) {
+                    gfp.useTemporal = false;
+                    /* off by default for this VBR mode */
+                }
+
+                p.apply_preset(gfp, 500 - (gfp.VBR_q * 10), 0);
+                /**
+                 * <PRE>
+                 *   The newer VBR code supports only a limited
+                 *     subset of quality levels:
+                 *     9-5=5 are the same, uses x^3/4 quantization
+                 *   4-0=0 are the same  5 plus best huffman divide code
+                 * </PRE>
+                 */
+                if (gfp.quality < 0)
+                    gfp.quality = LAME_DEFAULT_QUALITY;
+                if (gfp.quality < 5)
+                    gfp.quality = 0;
+                if (gfp.quality > 5)
+                    gfp.quality = 5;
+
+                gfc.PSY.mask_adjust = gfp.maskingadjust;
+                gfc.PSY.mask_adjust_short = gfp.maskingadjust_short;
+
+                /*
+                 * sfb21 extra only with MPEG-1 at higher sampling rates
+                 */
+                if (gfp.experimentalY)
+                    gfc.sfb21_extra = false;
+                else
+                    gfc.sfb21_extra = (gfp.out_samplerate > 44000);
+
+                gfc.iteration_loop = new VBRNewIterationLoop(qu);
+                break;
+
+            }
+            case VbrMode.vbr_rh:
+            {
+
+                p.apply_preset(gfp, 500 - (gfp.VBR_q * 10), 0);
+
+                gfc.PSY.mask_adjust = gfp.maskingadjust;
+                gfc.PSY.mask_adjust_short = gfp.maskingadjust_short;
+
+                /*
+                 * sfb21 extra only with MPEG-1 at higher sampling rates
+                 */
+                if (gfp.experimentalY)
+                    gfc.sfb21_extra = false;
+                else
+                    gfc.sfb21_extra = (gfp.out_samplerate > 44000);
+
+                /*
+                 * VBR needs at least the output of GPSYCHO, so we have to garantee
+                 * that by setting a minimum quality level, actually level 6 does
+                 * it. down to level 6
+                 */
+                if (gfp.quality > 6)
+                    gfp.quality = 6;
+
+                if (gfp.quality < 0)
+                    gfp.quality = LAME_DEFAULT_QUALITY;
+
+                gfc.iteration_loop = new VBROldIterationLoop(qu);
+                break;
+            }
+
+            default: /* cbr/abr */
+            {
+                var vbrmode;
+
+                /*
+                 * no sfb21 extra with CBR code
+                 */
+                gfc.sfb21_extra = false;
+
+                if (gfp.quality < 0)
+                    gfp.quality = LAME_DEFAULT_QUALITY;
+
+                vbrmode = gfp.VBR;
+                if (vbrmode == VbrMode.vbr_off)
+                    gfp.VBR_mean_bitrate_kbps = gfp.brate;
+                /* second, set parameters depending on bitrate */
+                p.apply_preset(gfp, gfp.VBR_mean_bitrate_kbps, 0);
+                gfp.VBR = vbrmode;
+
+                gfc.PSY.mask_adjust = gfp.maskingadjust;
+                gfc.PSY.mask_adjust_short = gfp.maskingadjust_short;
+
+                if (vbrmode == VbrMode.vbr_off) {
+                    gfc.iteration_loop = new CBRNewIterationLoop(qu);
+                } else {
+                    gfc.iteration_loop = new ABRIterationLoop(qu);
+                }
+                break;
+            }
+        }
+        /* initialize default values common for all modes */
+
+        if (gfp.VBR != VbrMode.vbr_off) { /* choose a min/max bitrate for VBR */
+            /* if the user didn't specify VBR_max_bitrate: */
+            gfc.VBR_min_bitrate = 1;
+            /*
+             * default: allow 8 kbps (MPEG-2) or 32 kbps (MPEG-1)
+             */
+            gfc.VBR_max_bitrate = 14;
+            /*
+             * default: allow 160 kbps (MPEG-2) or 320 kbps (MPEG-1)
+             */
+            if (gfp.out_samplerate < 16000)
+                gfc.VBR_max_bitrate = 8;
+            /* default: allow 64 kbps (MPEG-2.5) */
+            if (gfp.VBR_min_bitrate_kbps != 0) {
+                gfp.VBR_min_bitrate_kbps = FindNearestBitrate(
+                    gfp.VBR_min_bitrate_kbps, gfp.version,
+                    gfp.out_samplerate);
+                gfc.VBR_min_bitrate = BitrateIndex(gfp.VBR_min_bitrate_kbps,
+                    gfp.version, gfp.out_samplerate);
+                if (gfc.VBR_min_bitrate < 0)
+                    return -1;
+            }
+            if (gfp.VBR_max_bitrate_kbps != 0) {
+                gfp.VBR_max_bitrate_kbps = FindNearestBitrate(
+                    gfp.VBR_max_bitrate_kbps, gfp.version,
+                    gfp.out_samplerate);
+                gfc.VBR_max_bitrate = BitrateIndex(gfp.VBR_max_bitrate_kbps,
+                    gfp.version, gfp.out_samplerate);
+                if (gfc.VBR_max_bitrate < 0)
+                    return -1;
+            }
+            gfp.VBR_min_bitrate_kbps = Tables.bitrate_table[gfp.version][gfc.VBR_min_bitrate];
+            gfp.VBR_max_bitrate_kbps = Tables.bitrate_table[gfp.version][gfc.VBR_max_bitrate];
+            gfp.VBR_mean_bitrate_kbps = Math.min(
+                Tables.bitrate_table[gfp.version][gfc.VBR_max_bitrate],
+                gfp.VBR_mean_bitrate_kbps);
+            gfp.VBR_mean_bitrate_kbps = Math.max(
+                Tables.bitrate_table[gfp.version][gfc.VBR_min_bitrate],
+                gfp.VBR_mean_bitrate_kbps);
+        }
+
+        /* just another daily changing developer switch */
+        if (gfp.tune) {
+            gfc.PSY.mask_adjust += gfp.tune_value_a;
+            gfc.PSY.mask_adjust_short += gfp.tune_value_a;
+        }
+
+        /* initialize internal qval settings */
+        lame_init_qval(gfp);
+        /*
+         * automatic ATH adjustment on
+         */
+        if (gfp.athaa_type < 0)
+            gfc.ATH.useAdjust = 3;
+        else
+            gfc.ATH.useAdjust = gfp.athaa_type;
+
+        /* initialize internal adaptive ATH settings -jd */
+        gfc.ATH.aaSensitivityP = Math.pow(10.0, gfp.athaa_sensitivity
+            / -10.0);
+
+        if (gfp.short_blocks == null) {
+            gfp.short_blocks = ShortBlock.short_block_allowed;
+        }
+
+        /*
+         * Note Jan/2003: Many hardware decoders cannot handle short blocks in
+         * regular stereo mode unless they are coupled (same type in both
+         * channels) it is a rare event (1 frame per min. or so) that LAME would
+         * use uncoupled short blocks, so lets turn them off until we decide how
+         * to handle this. No other encoders allow uncoupled short blocks, even
+         * though it is in the standard.
+         */
+        /*
+         * rh 20040217: coupling makes no sense for mono and dual-mono streams
+         */
+        if (gfp.short_blocks == ShortBlock.short_block_allowed
+            && (gfp.mode == MPEGMode.JOINT_STEREO || gfp.mode == MPEGMode.STEREO)) {
+            gfp.short_blocks = ShortBlock.short_block_coupled;
+        }
+
+        if (gfp.quant_comp < 0)
+            gfp.quant_comp = 1;
+        if (gfp.quant_comp_short < 0)
+            gfp.quant_comp_short = 0;
+
+        if (gfp.msfix < 0)
+            gfp.msfix = 0;
+
+        /* select psychoacoustic model */
+        gfp.exp_nspsytune = gfp.exp_nspsytune | 1;
+
+        if (gfp.internal_flags.nsPsy.attackthre < 0)
+            gfp.internal_flags.nsPsy.attackthre = PsyModel.NSATTACKTHRE;
+        if (gfp.internal_flags.nsPsy.attackthre_s < 0)
+            gfp.internal_flags.nsPsy.attackthre_s = PsyModel.NSATTACKTHRE_S;
+
+
+        if (gfp.scale < 0)
+            gfp.scale = 1;
+
+        if (gfp.ATHtype < 0)
+            gfp.ATHtype = 4;
+
+        if (gfp.ATHcurve < 0)
+            gfp.ATHcurve = 4;
+
+        if (gfp.athaa_loudapprox < 0)
+            gfp.athaa_loudapprox = 2;
+
+        if (gfp.interChRatio < 0)
+            gfp.interChRatio = 0;
+
+        if (gfp.useTemporal == null)
+            gfp.useTemporal = true;
+        /* on by default */
+
+        /*
+         * padding method as described in
+         * "MPEG-Layer3 / Bitstream Syntax and Decoding" by Martin Sieler, Ralph
+         * Sperschneider
+         *
+         * note: there is no padding for the very first frame
+         *
+         * Robert Hegemann 2000-06-22
+         */
+        gfc.slot_lag = gfc.frac_SpF = 0;
+        if (gfp.VBR == VbrMode.vbr_off)
+            gfc.slot_lag = gfc.frac_SpF = (((gfp.version + 1) * 72000 * gfp.brate) % gfp.out_samplerate) | 0;
+
+        qupvt.iteration_init(gfp);
+        psy.psymodel_init(gfp);
+        return 0;
+    }
+
+    function update_inbuffer_size(gfc, nsamples) {
+        if (gfc.in_buffer_0 == null || gfc.in_buffer_nsamples < nsamples) {
+            gfc.in_buffer_0 = new_float(nsamples);
+            gfc.in_buffer_1 = new_float(nsamples);
+            gfc.in_buffer_nsamples = nsamples;
+        }
+    }
+
+    this.lame_encode_flush = function (gfp, mp3buffer, mp3bufferPos, mp3buffer_size) {
+        var gfc = gfp.internal_flags;
+        var buffer = new_short_n([2, 1152]);
+        var imp3 = 0, mp3count, mp3buffer_size_remaining;
+
+        /*
+         * we always add POSTDELAY=288 padding to make sure granule with real
+         * data can be complety decoded (because of 50% overlap with next
+         * granule
+         */
+        var end_padding;
+        var frames_left;
+        var samples_to_encode = gfc.mf_samples_to_encode - Encoder.POSTDELAY;
+        var mf_needed = calcNeeded(gfp);
+
+        /* Was flush already called? */
+        if (gfc.mf_samples_to_encode < 1) {
+            return 0;
+        }
+        mp3count = 0;
+
+        if (gfp.in_samplerate != gfp.out_samplerate) {
+            /*
+             * delay due to resampling; needs to be fixed, if resampling code
+             * gets changed
+             */
+            samples_to_encode += 16. * gfp.out_samplerate / gfp.in_samplerate;
+        }
+        end_padding = gfp.framesize - (samples_to_encode % gfp.framesize);
+        if (end_padding < 576)
+            end_padding += gfp.framesize;
+        gfp.encoder_padding = end_padding;
+
+        frames_left = (samples_to_encode + end_padding) / gfp.framesize;
+
+        /*
+         * send in a frame of 0 padding until all internal sample buffers are
+         * flushed
+         */
+        while (frames_left > 0 && imp3 >= 0) {
+            var bunch = mf_needed - gfc.mf_size;
+            var frame_num = gfp.frameNum;
+
+            bunch *= gfp.in_samplerate;
+            bunch /= gfp.out_samplerate;
+            if (bunch > 1152)
+                bunch = 1152;
+            if (bunch < 1)
+                bunch = 1;
+
+            mp3buffer_size_remaining = mp3buffer_size - mp3count;
+
+            /* if user specifed buffer size = 0, dont check size */
+            if (mp3buffer_size == 0)
+                mp3buffer_size_remaining = 0;
+
+            imp3 = this.lame_encode_buffer(gfp, buffer[0], buffer[1], bunch,
+                mp3buffer, mp3bufferPos, mp3buffer_size_remaining);
+
+            mp3bufferPos += imp3;
+            mp3count += imp3;
+            frames_left -= (frame_num != gfp.frameNum) ? 1 : 0;
+        }
+        /*
+         * Set gfc.mf_samples_to_encode to 0, so we may detect and break loops
+         * calling it more than once in a row.
+         */
+        gfc.mf_samples_to_encode = 0;
+
+        if (imp3 < 0) {
+            /* some type of fatal error */
+            return imp3;
+        }
+
+        mp3buffer_size_remaining = mp3buffer_size - mp3count;
+        /* if user specifed buffer size = 0, dont check size */
+        if (mp3buffer_size == 0)
+            mp3buffer_size_remaining = 0;
+
+        /* mp3 related stuff. bit buffer might still contain some mp3 data */
+        bs.flush_bitstream(gfp);
+        imp3 = bs.copy_buffer(gfc, mp3buffer, mp3bufferPos,
+            mp3buffer_size_remaining, 1);
+        if (imp3 < 0) {
+            /* some type of fatal error */
+            return imp3;
+        }
+        mp3bufferPos += imp3;
+        mp3count += imp3;
+        mp3buffer_size_remaining = mp3buffer_size - mp3count;
+        /* if user specifed buffer size = 0, dont check size */
+        if (mp3buffer_size == 0)
+            mp3buffer_size_remaining = 0;
+
+        if (gfp.write_id3tag_automatic) {
+            /* write a id3 tag to the bitstream */
+            id3.id3tag_write_v1(gfp);
+
+            imp3 = bs.copy_buffer(gfc, mp3buffer, mp3bufferPos,
+                mp3buffer_size_remaining, 0);
+
+            if (imp3 < 0) {
+                return imp3;
+            }
+            mp3count += imp3;
+        }
+        return mp3count;
+    };
+
+    this.lame_encode_buffer = function (gfp, buffer_l, buffer_r, nsamples, mp3buf, mp3bufPos, mp3buf_size) {
+        var gfc = gfp.internal_flags;
+        var in_buffer = [null, null];
+
+        if (gfc.Class_ID != LAME_ID)
+            return -3;
+
+        if (nsamples == 0)
+            return 0;
+
+        update_inbuffer_size(gfc, nsamples);
+
+        in_buffer[0] = gfc.in_buffer_0;
+        in_buffer[1] = gfc.in_buffer_1;
+
+        /* make a copy of input buffer, changing type to sample_t */
+        for (var i = 0; i < nsamples; i++) {
+            in_buffer[0][i] = buffer_l[i];
+            if (gfc.channels_in > 1)
+                in_buffer[1][i] = buffer_r[i];
+        }
+
+        return lame_encode_buffer_sample(gfp, in_buffer[0], in_buffer[1],
+            nsamples, mp3buf, mp3bufPos, mp3buf_size);
+    }
+
+    function calcNeeded(gfp) {
+        var mf_needed = Encoder.BLKSIZE + gfp.framesize - Encoder.FFTOFFSET;
+        /*
+         * amount needed for FFT
+         */
+        mf_needed = Math.max(mf_needed, 512 + gfp.framesize - 32);
+
+        return mf_needed;
+    }
+
+    function lame_encode_buffer_sample(gfp, buffer_l, buffer_r, nsamples, mp3buf, mp3bufPos, mp3buf_size) {
+        var gfc = gfp.internal_flags;
+        var mp3size = 0, ret, i, ch, mf_needed;
+        var mp3out;
+        var mfbuf = [null, null];
+        var in_buffer = [null, null];
+
+        if (gfc.Class_ID != LAME_ID)
+            return -3;
+
+        if (nsamples == 0)
+            return 0;
+
+        /* copy out any tags that may have been written into bitstream */
+        mp3out = bs.copy_buffer(gfc, mp3buf, mp3bufPos, mp3buf_size, 0);
+        if (mp3out < 0)
+            return mp3out;
+        /* not enough buffer space */
+        mp3bufPos += mp3out;
+        mp3size += mp3out;
+
+        in_buffer[0] = buffer_l;
+        in_buffer[1] = buffer_r;
+
+        /* Apply user defined re-scaling */
+
+        /* user selected scaling of the samples */
+        if (BitStream.NEQ(gfp.scale, 0) && BitStream.NEQ(gfp.scale, 1.0)) {
+            for (i = 0; i < nsamples; ++i) {
+                in_buffer[0][i] *= gfp.scale;
+                if (gfc.channels_out == 2)
+                    in_buffer[1][i] *= gfp.scale;
+            }
+        }
+
+        /* user selected scaling of the channel 0 (left) samples */
+        if (BitStream.NEQ(gfp.scale_left, 0)
+            && BitStream.NEQ(gfp.scale_left, 1.0)) {
+            for (i = 0; i < nsamples; ++i) {
+                in_buffer[0][i] *= gfp.scale_left;
+            }
+        }
+
+        /* user selected scaling of the channel 1 (right) samples */
+        if (BitStream.NEQ(gfp.scale_right, 0)
+            && BitStream.NEQ(gfp.scale_right, 1.0)) {
+            for (i = 0; i < nsamples; ++i) {
+                in_buffer[1][i] *= gfp.scale_right;
+            }
+        }
+
+        /* Downsample to Mono if 2 channels in and 1 channel out */
+        if (gfp.num_channels == 2 && gfc.channels_out == 1) {
+            for (i = 0; i < nsamples; ++i) {
+                in_buffer[0][i] = 0.5 * ( in_buffer[0][i] + in_buffer[1][i]);
+                in_buffer[1][i] = 0.0;
+            }
+        }
+
+        mf_needed = calcNeeded(gfp);
+
+        mfbuf[0] = gfc.mfbuf[0];
+        mfbuf[1] = gfc.mfbuf[1];
+
+        var in_bufferPos = 0;
+        while (nsamples > 0) {
+            var in_buffer_ptr = [null, null];
+            var n_in = 0;
+            /* number of input samples processed with fill_buffer */
+            var n_out = 0;
+            /* number of samples output with fill_buffer */
+            /* n_in <> n_out if we are resampling */
+
+            in_buffer_ptr[0] = in_buffer[0];
+            in_buffer_ptr[1] = in_buffer[1];
+            /* copy in new samples into mfbuf, with resampling */
+            var inOut = new InOut();
+            fill_buffer(gfp, mfbuf, in_buffer_ptr, in_bufferPos, nsamples,
+                inOut);
+            n_in = inOut.n_in;
+            n_out = inOut.n_out;
+
+            /* compute ReplayGain of resampled input if requested */
+            if (gfc.findReplayGain && !gfc.decode_on_the_fly)
+                if (ga.AnalyzeSamples(gfc.rgdata, mfbuf[0], gfc.mf_size,
+                        mfbuf[1], gfc.mf_size, n_out, gfc.channels_out) == GainAnalysis.GAIN_ANALYSIS_ERROR)
+                    return -6;
+
+            /* update in_buffer counters */
+            nsamples -= n_in;
+            in_bufferPos += n_in;
+            if (gfc.channels_out == 2)
+                ;// in_bufferPos += n_in;
+
+            /* update mfbuf[] counters */
+            gfc.mf_size += n_out;
+
+            /*
+             * lame_encode_flush may have set gfc.mf_sample_to_encode to 0 so we
+             * have to reinitialize it here when that happened.
+             */
+            if (gfc.mf_samples_to_encode < 1) {
+                gfc.mf_samples_to_encode = Encoder.ENCDELAY + Encoder.POSTDELAY;
+            }
+            gfc.mf_samples_to_encode += n_out;
+
+            if (gfc.mf_size >= mf_needed) {
+                /* encode the frame. */
+                /* mp3buf = pointer to current location in buffer */
+                /* mp3buf_size = size of original mp3 output buffer */
+                /* = 0 if we should not worry about the */
+                /* buffer size because calling program is */
+                /* to lazy to compute it */
+                /* mp3size = size of data written to buffer so far */
+                /* mp3buf_size-mp3size = amount of space avalable */
+
+                var buf_size = mp3buf_size - mp3size;
+                if (mp3buf_size == 0)
+                    buf_size = 0;
+
+                ret = lame_encode_frame(gfp, mfbuf[0], mfbuf[1], mp3buf,
+                    mp3bufPos, buf_size);
+
+                if (ret < 0)
+                    return ret;
+                mp3bufPos += ret;
+                mp3size += ret;
+
+                /* shift out old samples */
+                gfc.mf_size -= gfp.framesize;
+                gfc.mf_samples_to_encode -= gfp.framesize;
+                for (ch = 0; ch < gfc.channels_out; ch++)
+                    for (i = 0; i < gfc.mf_size; i++)
+                        mfbuf[ch][i] = mfbuf[ch][i + gfp.framesize];
+            }
+        }
+
+        return mp3size;
+    }
+
+    function lame_encode_frame(gfp, inbuf_l, inbuf_r, mp3buf, mp3bufPos, mp3buf_size) {
+        var ret = self.enc.lame_encode_mp3_frame(gfp, inbuf_l, inbuf_r, mp3buf,
+            mp3bufPos, mp3buf_size);
+        gfp.frameNum++;
+        return ret;
+    }
+
+    function InOut() {
+        this.n_in = 0;
+        this.n_out = 0;
+    }
+
+
+    function NumUsed() {
+        this.num_used = 0;
+    }
+
+    /**
+     * Greatest common divisor.
+     * <p>
+     * Joint work of Euclid and M. Hendry
+     */
+    function gcd(i, j) {
+        return j != 0 ? gcd(j, i % j) : i;
+    }
+
+    /**
+     * Resampling via FIR filter, blackman window.
+     */
+    function blackman(x, fcn, l) {
+        /*
+         * This algorithm from: SIGNAL PROCESSING ALGORITHMS IN FORTRAN AND C
+         * S.D. Stearns and R.A. David, Prentice-Hall, 1992
+         */
+        var wcn = (Math.PI * fcn);
+
+        x /= l;
+        if (x < 0)
+            x = 0;
+        if (x > 1)
+            x = 1;
+        var x2 = x - .5;
+
+        var bkwn = 0.42 - 0.5 * Math.cos(2 * x * Math.PI) + 0.08 * Math.cos(4 * x * Math.PI);
+        if (Math.abs(x2) < 1e-9)
+            return (wcn / Math.PI);
+        else
+            return (bkwn * Math.sin(l * wcn * x2) / (Math.PI * l * x2));
+    }
+
+    function fill_buffer_resample(gfp, outbuf, outbufPos, desired_len, inbuf, in_bufferPos, len, num_used, ch) {
+        var gfc = gfp.internal_flags;
+        var i, j = 0, k;
+        /* number of convolution functions to pre-compute */
+        var bpc = gfp.out_samplerate
+            / gcd(gfp.out_samplerate, gfp.in_samplerate);
+        if (bpc > LameInternalFlags.BPC)
+            bpc = LameInternalFlags.BPC;
+
+        var intratio = (Math.abs(gfc.resample_ratio
+            - Math.floor(.5 + gfc.resample_ratio)) < .0001) ? 1 : 0;
+        var fcn = 1.00 / gfc.resample_ratio;
+        if (fcn > 1.00)
+            fcn = 1.00;
+        var filter_l = 31;
+        if (0 == filter_l % 2)
+            --filter_l;
+        /* must be odd */
+        filter_l += intratio;
+        /* unless resample_ratio=int, it must be even */
+
+        var BLACKSIZE = filter_l + 1;
+        /* size of data needed for FIR */
+
+        if (gfc.fill_buffer_resample_init == 0) {
+            gfc.inbuf_old[0] = new_float(BLACKSIZE);
+            gfc.inbuf_old[1] = new_float(BLACKSIZE);
+            for (i = 0; i <= 2 * bpc; ++i)
+                gfc.blackfilt[i] = new_float(BLACKSIZE);
+
+            gfc.itime[0] = 0;
+            gfc.itime[1] = 0;
+
+            /* precompute blackman filter coefficients */
+            for (j = 0; j <= 2 * bpc; j++) {
+                var sum = 0.;
+                var offset = (j - bpc) / (2. * bpc);
+                for (i = 0; i <= filter_l; i++)
+                    sum += gfc.blackfilt[j][i] = blackman(i - offset, fcn,
+                        filter_l);
+                for (i = 0; i <= filter_l; i++)
+                    gfc.blackfilt[j][i] /= sum;
+            }
+            gfc.fill_buffer_resample_init = 1;
+        }
+
+        var inbuf_old = gfc.inbuf_old[ch];
+
+        /* time of j'th element in inbuf = itime + j/ifreq; */
+        /* time of k'th element in outbuf = j/ofreq */
+        for (k = 0; k < desired_len; k++) {
+            var time0;
+            var joff;
+
+            time0 = k * gfc.resample_ratio;
+            /* time of k'th output sample */
+            j = 0 | Math.floor(time0 - gfc.itime[ch]);
+
+            /* check if we need more input data */
+            if ((filter_l + j - filter_l / 2) >= len)
+                break;
+
+            /* blackman filter. by default, window centered at j+.5(filter_l%2) */
+            /* but we want a window centered at time0. */
+            var offset = (time0 - gfc.itime[ch] - (j + .5 * (filter_l % 2)));
+
+            /* find the closest precomputed window for this offset: */
+            joff = 0 | Math.floor((offset * 2 * bpc) + bpc + .5);
+            var xvalue = 0.;
+            for (i = 0; i <= filter_l; ++i) {
+                var j2 = i + j - filter_l / 2;
+                var y;
+                y = (j2 < 0) ? inbuf_old[BLACKSIZE + j2] : inbuf[in_bufferPos
+                + j2];
+                xvalue += y * gfc.blackfilt[joff][i];
+            }
+            outbuf[outbufPos + k] = xvalue;
+        }
+
+        /* k = number of samples added to outbuf */
+        /* last k sample used data from [j-filter_l/2,j+filter_l-filter_l/2] */
+
+        /* how many samples of input data were used: */
+        num_used.num_used = Math.min(len, filter_l + j - filter_l / 2);
+
+        /*
+         * adjust our input time counter. Incriment by the number of samples
+         * used, then normalize so that next output sample is at time 0, next
+         * input buffer is at time itime[ch]
+         */
+        gfc.itime[ch] += num_used.num_used - k * gfc.resample_ratio;
+
+        /* save the last BLACKSIZE samples into the inbuf_old buffer */
+        if (num_used.num_used >= BLACKSIZE) {
+            for (i = 0; i < BLACKSIZE; i++)
+                inbuf_old[i] = inbuf[in_bufferPos + num_used.num_used + i
+                - BLACKSIZE];
+        } else {
+            /* shift in num_used.num_used samples into inbuf_old */
+            var n_shift = BLACKSIZE - num_used.num_used;
+            /*
+             * number of samples to
+             * shift
+             */
+
+            /*
+             * shift n_shift samples by num_used.num_used, to make room for the
+             * num_used new samples
+             */
+            for (i = 0; i < n_shift; ++i)
+                inbuf_old[i] = inbuf_old[i + num_used.num_used];
+
+            /* shift in the num_used.num_used samples */
+            for (j = 0; i < BLACKSIZE; ++i, ++j)
+                inbuf_old[i] = inbuf[in_bufferPos + j];
+
+        }
+        return k;
+        /* return the number samples created at the new samplerate */
+    }
+
+    function fill_buffer(gfp, mfbuf, in_buffer, in_bufferPos, nsamples, io) {
+        var gfc = gfp.internal_flags;
+
+        /* copy in new samples into mfbuf, with resampling if necessary */
+        if ((gfc.resample_ratio < .9999) || (gfc.resample_ratio > 1.0001)) {
+            for (var ch = 0; ch < gfc.channels_out; ch++) {
+                var numUsed = new NumUsed();
+                io.n_out = fill_buffer_resample(gfp, mfbuf[ch], gfc.mf_size,
+                    gfp.framesize, in_buffer[ch], in_bufferPos, nsamples,
+                    numUsed, ch);
+                io.n_in = numUsed.num_used;
+            }
+        } else {
+            io.n_out = Math.min(gfp.framesize, nsamples);
+            io.n_in = io.n_out;
+            for (var i = 0; i < io.n_out; ++i) {
+                mfbuf[0][gfc.mf_size + i] = in_buffer[0][in_bufferPos + i];
+                if (gfc.channels_out == 2)
+                    mfbuf[1][gfc.mf_size + i] = in_buffer[1][in_bufferPos + i];
+            }
+        }
+    }
+
+}
+
+
+
+function GetAudio() {
+    var parse;
+    var mpg;
+
+    this.setModules = function (parse2, mpg2) {
+        parse = parse2;
+        mpg = mpg2;
+    }
+}
+
+
+function Parse() {
+    var ver;
+    var id3;
+    var pre;
+
+    this.setModules = function (ver2, id32, pre2) {
+        ver = ver2;
+        id3 = id32;
+        pre = pre2;
+    }
+}
+
+function MPGLib() {
+}
+
+function ID3Tag() {
+    var bits;
+    var ver;
+
+    this.setModules = function (_bits, _ver) {
+        bits = _bits;
+        ver = _ver;
+    }
+}
+
+function Mp3Encoder(channels, samplerate, kbps) {
+    if (arguments.length != 3) {
+        console.error('WARN: Mp3Encoder(channels, samplerate, kbps) not specified');
+        channels = 1;
+        samplerate = 44100;
+        kbps = 128;
+    }
+    var lame = new Lame();
+    var gaud = new GetAudio();
+    var ga = new GainAnalysis();
+    var bs = new BitStream();
+    var p = new Presets();
+    var qupvt = new QuantizePVT();
+    var qu = new Quantize();
+    var vbr = new VBRTag();
+    var ver = new Version();
+    var id3 = new ID3Tag();
+    var rv = new Reservoir();
+    var tak = new Takehiro();
+    var parse = new Parse();
+    var mpg = new MPGLib();
+
+    lame.setModules(ga, bs, p, qupvt, qu, vbr, ver, id3, mpg);
+    bs.setModules(ga, mpg, ver, vbr);
+    id3.setModules(bs, ver);
+    p.setModules(lame);
+    qu.setModules(bs, rv, qupvt, tak);
+    qupvt.setModules(tak, rv, lame.enc.psy);
+    rv.setModules(bs);
+    tak.setModules(qupvt);
+    vbr.setModules(lame, bs, ver);
+    gaud.setModules(parse, mpg);
+    parse.setModules(ver, id3, p);
+
+    var gfp = lame.lame_init();
+
+    gfp.num_channels = channels;
+    gfp.in_samplerate = samplerate;
+    gfp.out_samplerate = samplerate;//fix by xiangyuecn 2018-12-6 01:48:12 64kbps以下可能无声音，手动控制输出码率
+    gfp.brate = kbps;
+    gfp.mode = MPEGMode.STEREO;
+    gfp.quality = 3;
+    gfp.bWriteVbrTag = false;
+    gfp.disable_reservoir = true;
+    gfp.write_id3tag_automatic = false;
+
+    var retcode = lame.lame_init_params(gfp);
+    var maxSamples = 1152;
+    var mp3buf_size = 0 | (1.25 * maxSamples + 7200);
+    var mp3buf = new_byte(mp3buf_size);
+
+    this.encodeBuffer = function (left, right) {
+        if (channels == 1) {
+            right = left;
+        }
+        if (left.length > maxSamples) {
+            maxSamples = left.length;
+            mp3buf_size = 0 | (1.25 * maxSamples + 7200);
+            mp3buf = new_byte(mp3buf_size);
+        }
+
+        var _sz = lame.lame_encode_buffer(gfp, left, right, left.length, mp3buf, 0, mp3buf_size);
+        return new Int8Array(mp3buf.subarray(0, _sz));
+    };
+
+    this.flush = function () {
+        var _sz = lame.lame_encode_flush(gfp, mp3buf, 0, mp3buf_size);
+        return new Int8Array(mp3buf.subarray(0, _sz));
+    };
+}
+
+//fix 精简
+L3Side.SFBMAX = (Encoder.SBMAX_s * 3);
+//testFullLength();
+lamejs.Mp3Encoder = Mp3Encoder;
+}
+//fs=require('fs');
+lamejs();
+
+
+Recorder.lamejs=lamejs;
+
+//end3 ****结束copy lamejs*****
+})();
\ No newline at end of file
diff --git a/web/static/js/mp3.js b/web/static/js/mp3.js
new file mode 100644
index 0000000..bf745a2
--- /dev/null
+++ b/web/static/js/mp3.js
@@ -0,0 +1,424 @@
+/*
+mp3编码器，需带上mp3-engine.js引擎使用
+https://github.com/xiangyuecn/Recorder
+
+当然最佳推荐使用mp3、wav格式，代码也是优先照顾这两种格式
+浏览器支持情况
+https://developer.mozilla.org/en-US/docs/Web/HTML/Supported_media_formats
+*/
+(function(){
+"use strict";
+
+Recorder.prototype.enc_mp3={
+	stable:true
+	,testmsg:"采样率范围48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000"
+};
+
+
+
+//*******标准UI线程转码支持函数************
+
+Recorder.prototype.mp3=function(res,True,False){
+		var This=this,set=This.set,size=res.length;
+		
+		//优先采用worker编码，太低版本下面用老方法提供兼容
+		var ctx=This.mp3_start(set);
+		if(ctx){
+			This.mp3_encode(ctx,res);
+			This.mp3_complete(ctx,True,False,1);
+			return;
+		};
+		
+		//https://github.com/wangpengfei15975/recorder.js
+		//https://github.com/zhuker/lamejs bug:采样率必须和源一致，不然8k时没有声音，有问题fix：https://github.com/zhuker/lamejs/pull/11
+		var mp3=new Recorder.lamejs.Mp3Encoder(1,set.sampleRate,set.bitRate);
+		
+		var blockSize=57600;
+		var data=[];
+		
+		var idx=0,mp3Size=0;
+		var run=function(){
+			if(idx<size){
+				var buf=mp3.encodeBuffer(res.subarray(idx,idx+blockSize));
+				if(buf.length>0){
+					mp3Size+=buf.buffer.byteLength;
+					data.push(buf.buffer);
+				};
+				idx+=blockSize;
+				setTimeout(run);//尽量避免卡ui
+			}else{
+				var buf=mp3.flush();
+				if(buf.length>0){
+					mp3Size+=buf.buffer.byteLength;
+					data.push(buf.buffer);
+				};
+				
+				//去掉开头的标记信息帧
+				var meta=mp3TrimFix.fn(data,mp3Size,size,set.sampleRate);
+				mp3TrimFixSetMeta(meta,set);
+				
+				True(new Blob(data,{type:"audio/mp3"}));
+			};
+		};
+		run();
+	}
+
+
+//********边录边转码(Worker)支持函数，如果提供就代表可能支持，否则只支持标准转码*********
+
+//全局共享一个Worker，后台串行执行。如果每次都开一个新的，编码速度可能会慢很多，可能是浏览器运行缓存的因素，并且可能瞬间产生多个并行操作占用大量cpu
+var mp3Worker;
+Recorder.BindDestroy("mp3Worker",function(){
+	console.log("mp3Worker Destroy");
+	mp3Worker&&mp3Worker.terminate();
+	mp3Worker=null;
+});
+
+
+Recorder.prototype.mp3_envCheck=function(envInfo,set){//检查环境下配置是否可用
+	var errMsg="";
+	//需要实时编码返回数据，此时需要检查环境是否有实时特性、和是否可实时编码
+	if(set.takeoffEncodeChunk){
+		if(!envInfo.canProcess){
+			errMsg=envInfo.envName+"环境不支持实时处理";
+		}else if(!newContext()){//浏览器不能创建实时编码环境
+			errMsg="当前浏览器版本太低，无法实时处理";
+		};
+	};
+	return errMsg;
+};
+Recorder.prototype.mp3_start=function(set){//如果返回null代表不支持
+	return newContext(set);
+};
+var openList={id:0};
+var newContext=function(setOrNull){
+	var worker=mp3Worker;
+	try{
+		if(!worker){
+			var onmsg=function(e){
+				var ed=e.data;
+				var cur=wk_ctxs[ed.id];
+				if(ed.action=="init"){
+					wk_ctxs[ed.id]={
+						sampleRate:ed.sampleRate
+						,bitRate:ed.bitRate
+						,takeoff:ed.takeoff
+						
+						,mp3Size:0
+						,pcmSize:0
+						,encArr:[]
+						,encObj:new wk_lame.Mp3Encoder(1,ed.sampleRate,ed.bitRate)
+					};
+				}else if(!cur){
+					return;
+				};
+				
+				switch(ed.action){
+				case "stop":
+					cur.encObj=null;
+					delete wk_ctxs[ed.id];
+					break;
+				case "encode":
+					cur.pcmSize+=ed.pcm.length;
+					var buf=cur.encObj.encodeBuffer(ed.pcm);
+					if(buf.length>0){
+						if(cur.takeoff){
+							self.postMessage({action:"takeoff",id:ed.id,chunk:buf});
+						}else{
+							cur.mp3Size+=buf.buffer.byteLength;
+							cur.encArr.push(buf.buffer);
+						};
+					};
+					break;
+				case "complete":
+					var buf=cur.encObj.flush();
+					if(buf.length>0){
+						if(cur.takeoff){
+							self.postMessage({action:"takeoff",id:ed.id,chunk:buf});
+						}else{
+							cur.mp3Size+=buf.buffer.byteLength;
+							cur.encArr.push(buf.buffer);
+						};
+					};
+					
+					//去掉开头的标记信息帧
+					var meta=wk_mp3TrimFix.fn(cur.encArr,cur.mp3Size,cur.pcmSize,cur.sampleRate);
+					
+					self.postMessage({
+						action:ed.action
+						,id:ed.id
+						,blob:new Blob(cur.encArr,{type:"audio/mp3"})
+						,meta:meta
+					});
+					break;
+				};
+			};
+			
+			//创建一个新Worker
+			var jsCode=");wk_lame();var wk_ctxs={};self.onmessage="+onmsg;
+			jsCode+=";var wk_mp3TrimFix={rm:"+mp3TrimFix.rm+",fn:"+mp3TrimFix.fn+"}";
+			
+			var lamejsCode=Recorder.lamejs.toString();
+			var url=(window.URL||webkitURL).createObjectURL(new Blob(["var wk_lame=(",lamejsCode,jsCode], {type:"text/javascript"}));
+			
+			worker=new Worker(url);
+			setTimeout(function(){
+				(window.URL||webkitURL).revokeObjectURL(url);//必须要释放，不然每次调用内存都明显泄露内存
+			},10000);//chrome 83 file协议下如果直接释放，将会使WebWorker无法启动
+			
+			worker.onmessage=function(e){
+				var data=e.data;
+				var ctx=openList[data.id];
+				if(ctx){
+					if(data.action=="takeoff"){
+						//取走实时生成的mp3数据
+						ctx.set.takeoffEncodeChunk(new Uint8Array(data.chunk.buffer));
+					}else{
+						//complete
+						ctx.call&&ctx.call(data);
+						ctx.call=null;
+					};
+				};
+			};
+		};
+		
+		var ctx={worker:worker,set:setOrNull,takeoffQueue:[]};
+		if(setOrNull){
+			ctx.id=++openList.id;
+			openList[ctx.id]=ctx;
+			
+			worker.postMessage({
+				action:"init"
+				,id:ctx.id
+				,sampleRate:setOrNull.sampleRate
+				,bitRate:setOrNull.bitRate
+				,takeoff:!!setOrNull.takeoffEncodeChunk
+				
+				,x:new Int16Array(5)//低版本浏览器不支持序列化TypedArray
+			});
+		}else{
+			worker.postMessage({
+				x:new Int16Array(5)//低版本浏览器不支持序列化TypedArray
+			});
+		};
+		
+		
+		mp3Worker=worker;
+		return ctx;
+	}catch(e){//出错了就不要提供了
+		worker&&worker.terminate();
+		
+		console.error(e);
+		return null;
+	};
+};
+Recorder.prototype.mp3_stop=function(startCtx){
+	if(startCtx&&startCtx.worker){
+		startCtx.worker.postMessage({
+			action:"stop"
+			,id:startCtx.id
+		});
+		startCtx.worker=null;
+		delete openList[startCtx.id];
+		
+		//疑似泄露检测 排除id
+		var opens=-1;
+		for(var k in openList){
+			opens++;
+		};
+		if(opens){
+			console.warn("mp3 worker剩"+opens+"个在串行等待");
+		};
+	};
+};
+Recorder.prototype.mp3_encode=function(startCtx,pcm){
+	if(startCtx&&startCtx.worker){
+		startCtx.worker.postMessage({
+			action:"encode"
+			,id:startCtx.id
+			,pcm:pcm
+		});
+	};
+};
+Recorder.prototype.mp3_complete=function(startCtx,True,False,autoStop){
+	var This=this;
+	if(startCtx&&startCtx.worker){
+		startCtx.call=function(data){
+			mp3TrimFixSetMeta(data.meta,startCtx.set);
+			True(data.blob);
+			
+			if(autoStop){
+				This.mp3_stop(startCtx);
+			};
+		};
+		startCtx.worker.postMessage({
+			action:"complete"
+			,id:startCtx.id
+		});
+	}else{
+		False("mp3编码器未打开");
+	};
+};
+
+
+
+
+
+
+
+//*******辅助函数************
+
+/*读取lamejs编码出来的mp3信息，只能读特定格式，如果读取失败返回null
+mp3Buffers=[ArrayBuffer,...]
+length=mp3Buffers的数据二进制总长度
+*/
+Recorder.mp3ReadMeta=function(mp3Buffers,length){
+	//kill babel-polyfill ES6 Number.parseInt 不然放到Worker里面找不到方法
+	var parseInt_ES3=typeof(window)=="object"?window.parseInt:self.parseInt;
+	
+	var u8arr0=new Uint8Array(mp3Buffers[0]||[]);
+	if(u8arr0.length<4){
+		return null;
+	};
+	var byteAt=function(idx,u8){
+		return ("0000000"+((u8||u8arr0)[idx]||0).toString(2)).substr(-8);
+	};
+	var b2=byteAt(0)+byteAt(1);
+	var b4=byteAt(2)+byteAt(3);
+	
+	if(!/^1{11}/.test(b2)){//未发现帧同步
+		return null;
+	};
+	var version=({"00":2.5,"10":2,"11":1})[b2.substr(11,2)];
+	var layer=({"01":3})[b2.substr(13,2)];//仅支持Layer3
+	var sampleRate=({ //lamejs -> Tables.samplerate_table
+		"1":[44100, 48000, 32000]
+		,"2":[22050, 24000, 16000]
+		,"2.5":[11025, 12000, 8000]
+	})[version];
+	sampleRate&&(sampleRate=sampleRate[parseInt_ES3(b4.substr(4,2),2)]);
+	var bitRate=[ //lamejs -> Tables.bitrate_table
+		[0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160] //MPEG 2 2.5
+		,[0, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320]//MPEG 1
+	][version==1?1:0][parseInt_ES3(b4.substr(0,4),2)];
+	
+	if(!version || !layer || !bitRate || !sampleRate){
+		return null;
+	};
+	
+	var duration=Math.round(length*8/bitRate);
+	var frame=layer==1?384:layer==2?1152:version==1?1152:576;
+	var frameDurationFloat=frame/sampleRate*1000;
+	var frameSize=Math.floor((frame*bitRate)/8/sampleRate*1000);
+	
+	//检测是否存在Layer3帧填充1字节。这里只获取第二帧的填充信息，首帧永远没有填充。其他帧可能隔一帧出现一个填充，或者隔很多帧出现一个填充；目测是取决于frameSize未舍入时的小数部分，因为有些采样率的frameSize会出现小数（11025、22050、44100 典型的除不尽），然后字节数无法表示这种小数，就通过一定步长来填充弥补小数部分丢失
+	var hasPadding=0,seek=0;
+	for(var i=0;i<mp3Buffers.length;i++){
+		//寻找第二帧
+		var buf=mp3Buffers[i];
+		seek+=buf.byteLength;
+		if(seek>=frameSize+3){
+			var buf8=new Uint8Array(buf);
+			var idx=buf.byteLength-(seek-(frameSize+3)+1);
+			var ib4=byteAt(idx,buf8);
+			hasPadding=ib4.charAt(6)=="1";
+			break;
+		};
+	};
+	if(hasPadding){
+		frameSize++;
+	};
+	
+	
+	return {
+		version:version //1 2 2.5 -> MPEG1 MPEG2 MPEG2.5
+		,layer:layer//3 -> Layer3
+		,sampleRate:sampleRate //采样率 hz
+		,bitRate:bitRate //比特率 kbps
+		
+		,duration:duration //音频时长 ms
+		,size:length //总长度 byte
+		,hasPadding:hasPadding //是否存在1字节填充，首帧永远没有，这个值其实代表的第二帧是否有填充，并不代表其他帧的
+		,frameSize:frameSize //每帧最大长度，含可能存在的1字节padding byte
+		,frameDurationFloat:frameDurationFloat //每帧时长，含小数 ms
+	};
+};
+
+//去掉lamejs开头的标记信息帧，免得mp3解码出来的时长比pcm的长太多
+var mp3TrimFix={//minfiy keep name
+rm:Recorder.mp3ReadMeta
+,fn:function(mp3Buffers,length,pcmLength,pcmSampleRate){
+	var meta=this.rm(mp3Buffers,length);
+	if(!meta){
+		return {err:"mp3非预定格式"};
+	};
+	var pcmDuration=Math.round(pcmLength/pcmSampleRate*1000);
+	
+	//开头多出这么多帧，移除掉；正常情况下最多为2帧
+	var num=Math.floor((meta.duration-pcmDuration)/meta.frameDurationFloat);
+	if(num>0){
+		var size=num*meta.frameSize-(meta.hasPadding?1:0);//首帧没有填充，第二帧可能有填充，这里假设最多为2帧（测试并未出现3帧以上情况），其他帧不管，就算出现了并且导致了错误后面自动容错
+		length-=size;
+		var arr0=0,arrs=[];
+		for(var i=0;i<mp3Buffers.length;i++){
+			var arr=mp3Buffers[i];
+			if(size<=0){
+				break;
+			};
+			if(size>=arr.byteLength){
+				size-=arr.byteLength;
+				arrs.push(arr);
+				mp3Buffers.splice(i,1);
+				i--;
+			}else{
+				mp3Buffers[i]=arr.slice(size);
+				arr0=arr;
+				size=0;
+			};
+		};
+		var checkMeta=this.rm(mp3Buffers,length);
+		if(!checkMeta){
+			//还原变更，应该不太可能会出现
+			arr0&&(mp3Buffers[0]=arr0);
+			for(var i=0;i<arrs.length;i++){
+				mp3Buffers.splice(i,0,arrs[i]);
+			};
+			meta.err="fix后数据错误，已还原，错误原因不明";
+		};
+		
+		var fix=meta.trimFix={};
+		fix.remove=num;
+		fix.removeDuration=Math.round(num*meta.frameDurationFloat);
+		fix.duration=Math.round(length*8/meta.bitRate);
+	};
+	return meta;
+}
+};
+var mp3TrimFixSetMeta=function(meta,set){
+	var tag="MP3信息 ";
+	if(meta.sampleRate&&meta.sampleRate!=set.sampleRate || meta.bitRate&&meta.bitRate!=set.bitRate){
+		console.warn(tag+"和设置的不匹配set:"+set.bitRate+"kbps "+set.sampleRate+"hz，已更新set:"+meta.bitRate+"kbps "+meta.sampleRate+"hz",set);
+		set.sampleRate=meta.sampleRate;
+		set.bitRate=meta.bitRate;
+	};
+	
+	var trimFix=meta.trimFix;
+	if(trimFix){
+		tag+="Fix移除"+trimFix.remove+"帧"+trimFix.removeDuration+"ms -> "+trimFix.duration+"ms";
+		if(trimFix.remove>2){
+			meta.err=(meta.err?meta.err+", ":"")+"移除帧数过多";
+		};
+	}else{
+		tag+=(meta.duration||"-")+"ms";
+	};
+	
+	if(meta.err){
+		console.error(tag,meta.err,meta);
+	}else{
+		console.log(tag,meta);
+	};
+};
+
+
+	
+})();
\ No newline at end of file
diff --git a/web/static/js/recorder-core.js b/web/static/js/recorder-core.js
new file mode 100644
index 0000000..30a58e8
--- /dev/null
+++ b/web/static/js/recorder-core.js
@@ -0,0 +1,950 @@
+/*
+录音
+https://github.com/xiangyuecn/Recorder
+*/
+(function(factory){
+	factory(window);
+	//umd returnExports.js
+	if(typeof(define)=='function' && define.amd){
+		define(function(){
+			return Recorder;
+		});
+	};
+	if(typeof(module)=='object' && module.exports){
+		module.exports=Recorder;
+	};
+}(function(window){
+"use strict";
+
+//兼容环境
+var LM="2021-08-03 20:01:03";
+var NOOP=function(){};
+//end 兼容环境 ****从以下开始copy源码*****
+
+var Recorder=function(set){
+	return new initFn(set);
+};
+//是否已经打开了全局的麦克风录音，所有工作都已经准备好了，就等接收音频数据了
+Recorder.IsOpen=function(){
+	var stream=Recorder.Stream;
+	if(stream){
+		var tracks=stream.getTracks&&stream.getTracks()||stream.audioTracks||[];
+		var track=tracks[0];
+		if(track){
+			var state=track.readyState;
+			return state=="live"||state==track.LIVE;
+		};
+	};
+	return false;
+};
+/*H5录音时的AudioContext缓冲大小。会影响H5录音时的onProcess调用速率，相对于AudioContext.sampleRate=48000时，4096接近12帧/s，调节此参数可生成比较流畅的回调动画。
+	取值256, 512, 1024, 2048, 4096, 8192, or 16384
+	注意，取值不能过低，2048开始不同浏览器可能回调速率跟不上造成音质问题。
+	一般无需调整，调整后需要先close掉已打开的录音，再open时才会生效。
+*/
+Recorder.BufferSize=4096;
+//销毁已持有的所有全局资源，当要彻底移除Recorder时需要显式的调用此方法
+Recorder.Destroy=function(){
+	CLog("Recorder Destroy");
+	Disconnect();//断开可能存在的全局Stream、资源
+	
+	for(var k in DestroyList){
+		DestroyList[k]();
+	};
+};
+var DestroyList={};
+//登记一个需要销毁全局资源的处理方法
+Recorder.BindDestroy=function(key,call){
+	DestroyList[key]=call;
+};
+//判断浏览器是否支持录音，随时可以调用。注意：仅仅是检测浏览器支持情况，不会判断和调起用户授权，不会判断是否支持特定格式录音。
+Recorder.Support=function(){
+	var AC=window.AudioContext;
+	if(!AC){
+		AC=window.webkitAudioContext;
+	};
+	if(!AC){
+		return false;
+	};
+	var scope=navigator.mediaDevices||{};
+	if(!scope.getUserMedia){
+		scope=navigator;
+		scope.getUserMedia||(scope.getUserMedia=scope.webkitGetUserMedia||scope.mozGetUserMedia||scope.msGetUserMedia);
+	};
+	if(!scope.getUserMedia){
+		return false;
+	};
+	
+	Recorder.Scope=scope;
+	if(!Recorder.Ctx||Recorder.Ctx.state=="closed"){
+		//不能反复构造，低版本number of hardware contexts reached maximum (6)
+		Recorder.Ctx=new AC();
+		
+		Recorder.BindDestroy("Ctx",function(){
+			var ctx=Recorder.Ctx;
+			if(ctx&&ctx.close){//能关掉就关掉，关不掉就保留着
+				ctx.close();
+				Recorder.Ctx=0;
+			};
+		});
+	};
+	return true;
+};
+/*初始化H5音频采集连接。如果自行提供了sourceStream将只进行一次简单的连接处理。如果是普通麦克风录音，此时的Stream是全局的，Safari上断开后就无法再次进行连接使用，表现为静音，因此使用全部使用全局处理避免调用到disconnect；全局处理也有利于屏蔽底层细节，start时无需再调用底层接口，提升兼容、可靠性。*/
+var Connect=function(streamStore){
+	streamStore=streamStore||Recorder;
+	var bufferSize=streamStore.BufferSize||Recorder.BufferSize;
+	
+	var ctx=Recorder.Ctx,stream=streamStore.Stream;
+	var media=stream._m=ctx.createMediaStreamSource(stream);
+	var process=stream._p=(ctx.createScriptProcessor||ctx.createJavaScriptNode).call(ctx,bufferSize,1,1);//单声道，省的数据处理复杂
+	
+	media.connect(process);
+	process.connect(ctx.destination);
+	
+	var calls=stream._call;
+	process.onaudioprocess=function(e){
+		for(var k0 in calls){//has item
+			var o=e.inputBuffer.getChannelData(0);//块是共享的，必须复制出来
+			var size=o.length;
+			
+			var pcm=new Int16Array(size);
+			var sum=0;
+			for(var j=0;j<size;j++){//floatTo16BitPCM 
+				var s=Math.max(-1,Math.min(1,o[j]));
+				s=s<0?s*0x8000:s*0x7FFF;
+				pcm[j]=s;
+				sum+=Math.abs(s);
+			};
+			
+			for(var k in calls){
+				calls[k](pcm,sum);
+			};
+			
+			return;
+		};
+	};
+};
+var Disconnect=function(streamStore){
+	streamStore=streamStore||Recorder;
+	var isGlobal=streamStore==Recorder;
+	
+	var stream=streamStore.Stream;
+	if(stream){
+		if(stream._m){
+			stream._m.disconnect();
+			stream._p.disconnect();
+			stream._p.onaudioprocess=stream._p=stream._m=null;
+		};
+		
+		if(isGlobal){//全局的时候，要把流关掉（麦克风），直接提供的流不处理
+			var tracks=stream.getTracks&&stream.getTracks()||stream.audioTracks||[];
+			for(var i=0;i<tracks.length;i++){
+				var track=tracks[i];
+				track.stop&&track.stop();
+			};
+			stream.stop&&stream.stop();
+		};
+	};
+	streamStore.Stream=0;
+};
+
+/*对pcm数据的采样率进行转换
+pcmDatas: [[Int16,...]] pcm片段列表
+pcmSampleRate:48000 pcm数据的采样率
+newSampleRate:16000 需要转换成的采样率，newSampleRate>=pcmSampleRate时不会进行任何处理，小于时会进行重新采样
+prevChunkInfo:{} 可选，上次调用时的返回值，用于连续转换，本次调用将从上次结束位置开始进行处理。或可自行定义一个ChunkInfo从pcmDatas指定的位置开始进行转换
+option:{ 可选，配置项
+		frameSize:123456 帧大小，每帧的PCM Int16的数量，采样率转换后的pcm长度为frameSize的整数倍，用于连续转换。目前仅在mp3格式时才有用，frameSize取值为1152，这样编码出来的mp3时长和pcm的时长完全一致，否则会因为mp3最后一帧录音不够填满时添加填充数据导致mp3的时长变长。
+		frameType:"" 帧类型，一般为rec.set.type，提供此参数时无需提供frameSize，会自动使用最佳的值给frameSize赋值，目前仅支持mp3=1152(MPEG1 Layer3的每帧采采样数)，其他类型=1。
+			以上两个参数用于连续转换时使用，最多使用一个，不提供时不进行帧的特殊处理，提供时必须同时提供prevChunkInfo才有作用。最后一段数据处理时无需提供帧大小以便输出最后一丁点残留数据。
+	}
+
+返回ChunkInfo:{
+	//可定义，从指定位置开始转换到结尾
+	index:0 pcmDatas已处理到的索引
+	offset:0.0 已处理到的index对应的pcm中的偏移的下一个位置
+	
+	//仅作为返回值
+	frameNext:null||[Int16,...] 下一帧的部分数据，frameSize设置了的时候才可能会有
+	sampleRate:16000 结果的采样率，<=newSampleRate
+	data:[Int16,...] 转换后的PCM结果；如果是连续转换，并且pcmDatas中并没有新数据时，data的长度可能为0
+}
+*/
+Recorder.SampleData=function(pcmDatas,pcmSampleRate,newSampleRate,prevChunkInfo,option){
+	prevChunkInfo||(prevChunkInfo={});
+	var index=prevChunkInfo.index||0;
+	var offset=prevChunkInfo.offset||0;
+	
+	var frameNext=prevChunkInfo.frameNext||[];
+	option||(option={});
+	var frameSize=option.frameSize||1;
+	if(option.frameType){
+		frameSize=option.frameType=="mp3"?1152:1;
+	};
+	
+	var size=0;
+	for(var i=index;i<pcmDatas.length;i++){
+		size+=pcmDatas[i].length;
+	};
+	size=Math.max(0,size-Math.floor(offset));
+	
+	//采样 https://www.cnblogs.com/blqw/p/3782420.html
+	var step=pcmSampleRate/newSampleRate;
+	if(step>1){//新采样低于录音采样，进行抽样
+		size=Math.floor(size/step);
+	}else{//新采样高于录音采样不处理，省去了插值处理
+		step=1;
+		newSampleRate=pcmSampleRate;
+	};
+	
+	size+=frameNext.length;
+	var res=new Int16Array(size);
+	var idx=0;
+	//添加上一次不够一帧的剩余数据
+	for(var i=0;i<frameNext.length;i++){
+		res[idx]=frameNext[i];
+		idx++;
+	};
+	//处理数据
+	for (var nl=pcmDatas.length;index<nl;index++) {
+		var o=pcmDatas[index];
+		var i=offset,il=o.length;
+		while(i<il){
+			//res[idx]=o[Math.round(i)]; 直接简单抽样
+			
+			//https://www.cnblogs.com/xiaoqi/p/6993912.html
+			//当前点=当前点+到后面一个点之间的增量，音质比直接简单抽样好些
+			var before = Math.floor(i);
+			var after = Math.ceil(i);
+			var atPoint = i - before;
+			
+			var beforeVal=o[before];
+			var afterVal=after<il ? o[after]
+				: (//后个点越界了，查找下一个数组
+					(pcmDatas[index+1]||[beforeVal])[0]||0
+				);
+			res[idx]=beforeVal+(afterVal-beforeVal)*atPoint;
+			
+			idx++;
+			i+=step;//抽样
+		};
+		offset=i-il;
+	};
+	//帧处理
+	frameNext=null;
+	var frameNextSize=res.length%frameSize;
+	if(frameNextSize>0){
+		var u8Pos=(res.length-frameNextSize)*2;
+		frameNext=new Int16Array(res.buffer.slice(u8Pos));
+		res=new Int16Array(res.buffer.slice(0,u8Pos));
+	};
+	
+	return {
+		index:index
+		,offset:offset
+		
+		,frameNext:frameNext
+		,sampleRate:newSampleRate
+		,data:res
+	};
+};
+
+
+/*计算音量百分比的一个方法
+pcmAbsSum: pcm Int16所有采样的绝对值的和
+pcmLength: pcm长度
+返回值：0-100，主要当做百分比用
+注意：这个不是分贝，因此没用volume当做名称*/
+Recorder.PowerLevel=function(pcmAbsSum,pcmLength){
+	/*计算音量 https://blog.csdn.net/jody1989/article/details/73480259
+	更高灵敏度算法:
+		限定最大感应值10000
+			线性曲线：低音量不友好
+				power/10000*100 
+			对数曲线：低音量友好，但需限定最低感应值
+				(1+Math.log10(power/10000))*100
+	*/
+	var power=(pcmAbsSum/pcmLength) || 0;//NaN
+	var level;
+	if(power<1251){//1250的结果10%，更小的音量采用线性取值
+		level=Math.round(power/1250*10);
+	}else{
+		level=Math.round(Math.min(100,Math.max(0,(1+Math.log(power/10000)/Math.log(10))*100)));
+	};
+	return level;
+};
+
+
+
+
+//带时间的日志输出，CLog(msg,errOrLogMsg, logMsg...) err为数字时代表日志类型1:error 2:log默认 3:warn，否则当做内容输出，第一个参数不能是对象因为要拼接时间，后面可以接无数个输出参数
+var CLog=function(msg,err){
+	var now=new Date();
+	var t=("0"+now.getMinutes()).substr(-2)
+		+":"+("0"+now.getSeconds()).substr(-2)
+		+"."+("00"+now.getMilliseconds()).substr(-3);
+	var arr=["["+t+" Recorder]"+msg];
+	var a=arguments;
+	var i=2,fn=console.log;
+	if(typeof(err)=="number"){
+		fn=err==1?console.error:err==3?console.warn:fn;
+	}else{
+		i=1;
+	};
+	for(;i<a.length;i++){
+		arr.push(a[i]);
+	};
+	fn.apply(console,arr);
+};
+Recorder.CLog=CLog;
+
+
+
+
+var ID=0;
+function initFn(set){
+	this.id=++ID;
+	
+	//如果开启了流量统计，这里将发送一个图片请求
+	Recorder.Traffic&&Recorder.Traffic();
+	
+	
+	var o={
+		type:"mp3" //输出类型：mp3,wav，wav输出文件尺寸超大不推荐使用，但mp3编码支持会导致js文件超大，如果不需支持mp3可以使js文件大幅减小
+		,bitRate:16 //比特率 wav:16或8位，MP3：8kbps 1k/s，8kbps 2k/s 录音文件很小
+		
+		,sampleRate:16000 //采样率，wav格式大小=sampleRate*时间；mp3此项对低比特率有影响，高比特率几乎无影响。
+					//wav任意值，mp3取值范围：48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000
+					//采样率参考https://www.cnblogs.com/devin87/p/mp3-recorder.html
+		
+		,onProcess:NOOP //fn(buffers,powerLevel,bufferDuration,bufferSampleRate,newBufferIdx,asyncEnd) buffers=[[Int16,...],...]：缓冲的PCM数据，为从开始录音到现在的所有pcm片段；powerLevel：当前缓冲的音量级别0-100，bufferDuration：已缓冲时长，bufferSampleRate：缓冲使用的采样率（当type支持边录边转码(Worker)时，此采样率和设置的采样率相同，否则不一定相同）；newBufferIdx:本次回调新增的buffer起始索引；asyncEnd:fn() 如果onProcess是异步的(返回值为true时)，处理完成时需要调用此回调，如果不是异步的请忽略此参数，此方法回调时必须是真异步（不能真异步时需用setTimeout包裹）。onProcess返回值：如果返回true代表开启异步模式，在某些大量运算的场合异步是必须的，必须在异步处理完成时调用asyncEnd(不能真异步时需用setTimeout包裹)，在onProcess执行后新增的buffer会全部替换成空数组，因此本回调开头应立即将newBufferIdx到本次回调结尾位置的buffer全部保存到另外一个数组内，处理完成后写回buffers中本次回调的结尾位置。
+		
+		//*******高级设置******
+		//,sourceStream:MediaStream Object
+				//可选直接提供一个媒体流，从这个流中录制、实时处理音频数据（当前Recorder实例独享此流）；不提供时为普通的麦克风录音，由getUserMedia提供音频流（所有Recorder实例共享同一个流）
+				//比如：audio、video标签dom节点的captureStream方法（实验特性，不同浏览器支持程度不高）返回的流；WebRTC中的remote流；自己创建的流等
+				//注意：流内必须至少存在一条音轨(Audio Track)，比如audio标签必须等待到可以开始播放后才会有音轨，否则open会失败
+		
+		//,audioTrackSet:{ deviceId:"",groupId:"", autoGainControl:true, echoCancellation:true, noiseSuppression:true }
+				//普通麦克风录音时getUserMedia方法的audio配置参数，比如指定设备id，回声消除、降噪开关；注意：提供的任何配置值都不一定会生效
+				//由于麦克风是全局共享的，所以新配置后需要close掉以前的再重新open
+				//更多参考: https://developer.mozilla.org/en-US/docs/Web/API/MediaTrackConstraints
+		
+		//,disableEnvInFix:false 内部参数，禁用设备卡顿时音频输入丢失补偿功能
+		
+		//,takeoffEncodeChunk:NOOP //fn(chunkBytes) chunkBytes=[Uint8,...]：实时编码环境下接管编码器输出，当编码器实时编码出一块有效的二进制音频数据时实时回调此方法；参数为二进制的Uint8Array，就是编码出来的音频数据片段，所有的chunkBytes拼接在一起即为完整音频。本实现的想法最初由QQ2543775048提出
+				//当提供此回调方法时，将接管编码器的数据输出，编码器内部将放弃存储生成的音频数据；环境要求比较苛刻：如果当前环境不支持实时编码处理，将在open时直接走fail逻辑
+				//因此提供此回调后调用stop方法将无法获得有效的音频数据，因为编码器内没有音频数据，因此stop时返回的blob将是一个字节长度为0的blob
+				//目前只有mp3格式实现了实时编码，在支持实时处理的环境中将会实时的将编码出来的mp3片段通过此方法回调，所有的chunkBytes拼接到一起即为完整的mp3，此种拼接的结果比mock方法实时生成的音质更加，因为天然避免了首尾的静默
+				//目前除mp3外其他格式不可以提供此回调，提供了将在open时直接走fail逻辑
+	};
+	
+	for(var k in set){
+		o[k]=set[k];
+	};
+	this.set=o;
+	
+	this._S=9;//stop同步锁，stop可以阻止open过程中还未运行的start
+	this.Sync={O:9,C:9};//和Recorder.Sync一致，只不过这个是非全局的，仅用来简化代码逻辑，无实际作用
+};
+//同步锁，控制对Stream的竞争；用于close时中断异步的open；一个对象open如果变化了都要阻止close，Stream的控制权交个新的对象
+Recorder.Sync={/*open*/O:9,/*close*/C:9};
+
+Recorder.prototype=initFn.prototype={
+	//流相关的数据存储在哪个对象里面；如果提供了sourceStream，数据直接存储在当前对象中，否则存储在全局
+	_streamStore:function(){
+		if(this.set.sourceStream){
+			return this;
+		}else{
+			return Recorder;
+		}
+	}
+	
+	//打开录音资源True(),False(msg,isUserNotAllow)，需要调用close。注意：此方法是异步的；一般使用时打开，用完立即关闭；可重复调用，可用来测试是否能录音
+	,open:function(True,False){
+		var This=this,streamStore=This._streamStore();
+		True=True||NOOP;
+		var failCall=function(errMsg,isUserNotAllow){
+			isUserNotAllow=!!isUserNotAllow;
+			CLog("录音open失败："+errMsg+",isUserNotAllow:"+isUserNotAllow,1);
+			False&&False(errMsg,isUserNotAllow);
+		};
+		
+		var ok=function(){
+			CLog("open成功");
+			True();
+			
+			This._SO=0;//解除stop对open中的start调用的阻止
+		};
+		
+		
+		//同步锁
+		var Lock=streamStore.Sync;
+		var lockOpen=++Lock.O,lockClose=Lock.C;
+		This._O=This._O_=lockOpen;//记住当前的open，如果变化了要阻止close，这里假定了新对象已取代当前对象并且不再使用
+		This._SO=This._S;//记住open过程中的stop，中途任何stop调用后都不能继续open中的start
+		var lockFail=function(){
+			//允许多次open，但不允许任何一次close，或者自身已经调用了关闭
+			if(lockClose!=Lock.C || !This._O){
+				var err="open被取消";
+				if(lockOpen==Lock.O){
+					//无新的open，已经调用了close进行取消，此处应让上次的close明确生效
+					This.close();
+				}else{
+					err="open被中断";
+				};
+				failCall(err);
+				return true;
+			};
+		};
+		
+		//环境配置检查
+		var checkMsg=This.envCheck({envName:"H5",canProcess:true});
+		if(checkMsg){
+			failCall("不能录音："+checkMsg);
+			return;
+		};
+		
+		
+		//***********已直接提供了音频流************
+		if(This.set.sourceStream){
+			if(!Recorder.Support()){
+				failCall("不支持此浏览器从流中获取录音");
+				return;
+			};
+			
+			Disconnect(streamStore);//可能已open过，直接先尝试断开
+			This.Stream=This.set.sourceStream;
+			This.Stream._call={};
+			
+			try{
+				Connect(streamStore);
+			}catch(e){
+				failCall("从流中打开录音失败："+e.message);
+				return;
+			}
+			ok();
+			return;
+		};
+		
+		
+		//***********打开麦克风得到全局的音频流************
+		var codeFail=function(code,msg){
+			try{//跨域的优先检测一下
+				window.top.a;
+			}catch(e){
+				failCall('无权录音(跨域，请尝试给iframe添加麦克风访问策略，如allow="camera;microphone")');
+				return;
+			};
+			
+			if(/Permission|Allow/i.test(code)){
+				failCall("用户拒绝了录音权限",true);
+			}else if(window.isSecureContext===false){
+				failCall("无权录音(需https)");
+			}else if(/Found/i.test(code)){//可能是非安全环境导致的没有设备
+				failCall(msg+"，无可用麦克风");
+			}else{
+				failCall(msg);
+			};
+		};
+		
+		
+		//如果已打开并且有效就不要再打开了
+		if(Recorder.IsOpen()){
+			ok();
+			return;
+		};
+		if(!Recorder.Support()){
+			codeFail("","此浏览器不支持录音");
+			return;
+		};
+				
+		//请求权限，如果从未授权，一般浏览器会弹出权限请求弹框
+		var f1=function(stream){
+			Recorder.Stream=stream;
+			stream._call={};//此时is open，但并未connect，是允许绑定接收数据的
+			if(lockFail())return;
+			
+			//https://github.com/xiangyuecn/Recorder/issues/14 获取到的track.readyState!="live"，刚刚回调时可能是正常的，但过一下可能就被关掉了，原因不明。延迟一下保证真异步。对正常浏览器不影响
+			setTimeout(function(){
+				if(lockFail())return;
+				
+				if(Recorder.IsOpen()){
+					Connect();
+					ok();
+				}else{
+					failCall("录音功能无效：无音频流");
+				};
+			},100);
+		};
+		var f2=function(e){
+			var code=e.name||e.message||e.code+":"+e;
+			CLog("请求录音权限错误",1,e);
+			
+			codeFail(code,"无法录音："+code);
+		};
+		var pro=Recorder.Scope.getUserMedia({audio:This.set.audioTrackSet||true},f1,f2);
+		if(pro&&pro.then){
+			pro.then(f1)[True&&"catch"](f2); //fix 关键字，保证catch压缩时保持字符串形式
+		};
+	}
+	//关闭释放录音资源
+	,close:function(call){
+		call=call||NOOP;
+		
+		var This=this,streamStore=This._streamStore();
+		This._stop();
+		
+		var Lock=streamStore.Sync;
+		This._O=0;
+		if(This._O_!=Lock.O){
+			//唯一资源Stream的控制权已交给新对象，这里不能关闭。此处在每次都弹权限的浏览器内可能存在泄漏，新对象被拒绝权限可能不会调用close，忽略这种不处理
+			CLog("close被忽略",3);
+			call();
+			return;
+		};
+		Lock.C++;//获得控制权
+		
+		Disconnect(streamStore);
+		
+		CLog("close");
+		call();
+	}
+	
+	
+	
+	
+	
+	/*模拟一段录音数据，后面可以调用stop进行编码，需提供pcm数据[1,2,3...]，pcm的采样率*/
+	,mock:function(pcmData,pcmSampleRate){
+		var This=this;
+		This._stop();//清理掉已有的资源
+		
+		This.isMock=1;
+		This.mockEnvInfo=null;
+		This.buffers=[pcmData];
+		This.recSize=pcmData.length;
+		This.srcSampleRate=pcmSampleRate;
+		return This;
+	}
+	,envCheck:function(envInfo){//平台环境下的可用性检查，任何时候都可以调用检查，返回errMsg:""正常，"失败原因"
+		//envInfo={envName:"H5",canProcess:true}
+		var errMsg,This=this,set=This.set;
+		
+		//编码器检查环境下配置是否可用
+		if(!errMsg){
+			if(This[set.type+"_envCheck"]){//编码器已实现环境检查
+				errMsg=This[set.type+"_envCheck"](envInfo,set);
+			}else{//未实现检查的手动检查配置是否有效
+				if(set.takeoffEncodeChunk){
+					errMsg=set.type+"类型不支持设置takeoffEncodeChunk";
+				};
+			};
+		};
+		
+		return errMsg||"";
+	}
+	,envStart:function(mockEnvInfo,sampleRate){//平台环境相关的start调用
+		var This=this,set=This.set;
+		This.isMock=mockEnvInfo?1:0;//非H5环境需要启用mock，并提供envCheck需要的环境信息
+		This.mockEnvInfo=mockEnvInfo;
+		This.buffers=[];//数据缓冲
+		This.recSize=0;//数据大小
+		
+		This.envInLast=0;//envIn接收到最后录音内容的时间
+		This.envInFirst=0;//envIn接收到的首个录音内容的录制时间
+		This.envInFix=0;//补偿的总时间
+		This.envInFixTs=[];//补偿计数列表
+		
+		set.sampleRate=Math.min(sampleRate,set.sampleRate);//engineCtx需要提前确定最终的采样率
+		This.srcSampleRate=sampleRate;
+		
+		This.engineCtx=0;
+		//此类型有边录边转码(Worker)支持
+		if(This[set.type+"_start"]){
+			var engineCtx=This.engineCtx=This[set.type+"_start"](set);
+			if(engineCtx){
+				engineCtx.pcmDatas=[];
+				engineCtx.pcmSize=0;
+			};
+		};
+	}
+	,envResume:function(){//和平台环境无关的恢复录音
+		//重新开始计数
+		this.envInFixTs=[];
+	}
+	,envIn:function(pcm,sum){//和平台环境无关的pcm[Int16]输入
+		var This=this,set=This.set,engineCtx=This.engineCtx;
+		var bufferSampleRate=This.srcSampleRate;
+		var size=pcm.length;
+		var powerLevel=Recorder.PowerLevel(sum,size);
+		
+		var buffers=This.buffers;
+		var bufferFirstIdx=buffers.length;//之前的buffer都是经过onProcess处理好的，不允许再修改
+		buffers.push(pcm);
+		
+		//有engineCtx时会被覆盖，这里保存一份
+		var buffersThis=buffers;
+		var bufferFirstIdxThis=bufferFirstIdx;
+		
+		//卡顿丢失补偿：因为设备很卡的时候导致H5接收到的数据量不够造成播放时候变速，结果比实际的时长要短，此处保证了不会变短，但不能修复丢失的音频数据造成音质变差。当前算法采用输入时间侦测下一帧是否需要添加补偿帧，需要(6次输入||超过1秒)以上才会开始侦测，如果滑动窗口内丢失超过1/3就会进行补偿
+		var now=Date.now();
+		var pcmTime=Math.round(size/bufferSampleRate*1000);
+		This.envInLast=now;
+		if(This.buffers.length==1){//记下首个录音数据的录制时间
+			This.envInFirst=now-pcmTime;
+		};
+		var envInFixTs=This.envInFixTs;
+		envInFixTs.splice(0,0,{t:now,d:pcmTime});
+		//保留3秒的计数滑动窗口，另外超过3秒的停顿不补偿
+		var tsInStart=now,tsPcm=0;
+		for(var i=0;i<envInFixTs.length;i++){
+			var o=envInFixTs[i];
+			if(now-o.t>3000){
+				envInFixTs.length=i;
+				break;
+			};
+			tsInStart=o.t;
+			tsPcm+=o.d;
+		};
+		//达到需要的数据量，开始侦测是否需要补偿
+		var tsInPrev=envInFixTs[1];
+		var tsIn=now-tsInStart;
+		var lost=tsIn-tsPcm;
+		if( lost>tsIn/3 && (tsInPrev&&tsIn>1000 || envInFixTs.length>=6) ){
+			//丢失过多，开始执行补偿
+			var addTime=now-tsInPrev.t-pcmTime;//距离上次输入丢失这么多ms
+			if(addTime>pcmTime/5){//丢失超过本帧的1/5
+				var fixOpen=!set.disableEnvInFix;
+				CLog("["+now+"]"+(fixOpen?"":"未")+"补偿"+addTime+"ms",3);
+				This.envInFix+=addTime;
+				
+				//用静默进行补偿
+				if(fixOpen){
+					var addPcm=new Int16Array(addTime*bufferSampleRate/1000);
+					size+=addPcm.length;
+					buffers.push(addPcm);
+				};
+			};
+		};
+		
+		
+		var sizeOld=This.recSize,addSize=size;
+		var bufferSize=sizeOld+addSize;
+		This.recSize=bufferSize;//此值在onProcess后需要修正，可能新数据被修改
+		
+		
+		//此类型有边录边转码(Worker)支持，开启实时转码
+		if(engineCtx){
+			//转换成set的采样率
+			var chunkInfo=Recorder.SampleData(buffers,bufferSampleRate,set.sampleRate,engineCtx.chunkInfo);
+			engineCtx.chunkInfo=chunkInfo;
+			
+			sizeOld=engineCtx.pcmSize;
+			addSize=chunkInfo.data.length;
+			bufferSize=sizeOld+addSize;
+			engineCtx.pcmSize=bufferSize;//此值在onProcess后需要修正，可能新数据被修改
+			
+			buffers=engineCtx.pcmDatas;
+			bufferFirstIdx=buffers.length;
+			buffers.push(chunkInfo.data);
+			bufferSampleRate=chunkInfo.sampleRate;
+		};
+		
+		var duration=Math.round(bufferSize/bufferSampleRate*1000);
+		var bufferNextIdx=buffers.length;
+		var bufferNextIdxThis=buffersThis.length;
+		
+		//允许异步处理buffer数据
+		var asyncEnd=function(){
+			//重新计算size，异步的早已减去添加的，同步的需去掉本次添加的然后重新计算
+			var num=asyncBegin?0:-addSize;
+			var hasClear=buffers[0]==null;
+			for(var i=bufferFirstIdx;i<bufferNextIdx;i++){
+				var buffer=buffers[i];
+				if(buffer==null){//已被主动释放内存，比如长时间实时传输录音时
+					hasClear=1;
+				}else{
+					num+=buffer.length;
+					
+					//推入后台边录边转码
+					if(engineCtx&&buffer.length){
+						This[set.type+"_encode"](engineCtx,buffer);
+					};
+				};
+			};
+			
+			//同步清理This.buffers，不管buffers到底清了多少个，buffersThis是使用不到的进行全清
+			if(hasClear && engineCtx){
+				var i=bufferFirstIdxThis;
+				if(buffersThis[0]){
+					i=0;
+				};
+				for(;i<bufferNextIdxThis;i++){
+					buffersThis[i]=null;
+				};
+			};
+			
+			//统计修改后的size，如果异步发生clear要原样加回来，同步的无需操作
+			if(hasClear){
+				num=asyncBegin?addSize:0;
+				
+				buffers[0]=null;//彻底被清理
+			};
+			if(engineCtx){
+				engineCtx.pcmSize+=num;
+			}else{
+				This.recSize+=num;
+			};
+		};
+		//实时回调处理数据，允许修改或替换上次回调以来新增的数据 ，但是不允许修改已处理过的，不允许增删第一维数组 ，允许将第二维数组任意修改替换成空数组也可以
+		var asyncBegin=set.onProcess(buffers,powerLevel,duration,bufferSampleRate,bufferFirstIdx,asyncEnd);
+		
+		if(asyncBegin===true){
+			//开启了异步模式，onProcess已接管buffers新数据，立即清空，避免出现未处理的数据
+			var hasClear=0;
+			for(var i=bufferFirstIdx;i<bufferNextIdx;i++){
+				if(buffers[i]==null){//已被主动释放内存，比如长时间实时传输录音时 ，但又要开启异步模式，此种情况是非法的
+					hasClear=1;
+				}else{
+					buffers[i]=new Int16Array(0);
+				};
+			};
+			
+			if(hasClear){
+				CLog("未进入异步前不能清除buffers",3);
+			}else{
+				//还原size，异步结束后再统计仅修改后的size，如果发生clear要原样加回来
+				if(engineCtx){
+					engineCtx.pcmSize-=addSize;
+				}else{
+					This.recSize-=addSize;
+				};
+			};
+		}else{
+			asyncEnd();
+		};
+	}
+	
+	
+	
+	
+	//开始录音，需先调用open；只要open成功时，调用此方法是安全的，如果未open强行调用导致的内部错误将不会有任何提示，stop时自然能得到错误
+	,start:function(){
+		var This=this,ctx=Recorder.Ctx;
+		
+		var isOpen=1;
+		if(This.set.sourceStream){//直接提供了流，仅判断是否调用了open
+			if(!This.Stream){
+				isOpen=0;
+			}
+		}else if(!Recorder.IsOpen()){//监测全局麦克风是否打开并且有效
+			isOpen=0;
+		};
+		if(!isOpen){
+			CLog("未open",1);
+			return;
+		};
+		CLog("开始录音");
+		
+		This._stop();
+		This.state=0;
+		This.envStart(null,ctx.sampleRate);
+		
+		//检查open过程中stop是否已经调用过
+		if(This._SO&&This._SO+1!=This._S){//上面调用过一次 _stop
+			//open未完成就调用了stop，此种情况终止start。也应尽量避免出现此情况
+			CLog("start被中断",3);
+			return;
+		};
+		This._SO=0;
+		
+		var end=function(){
+			This.state=1;
+			This.resume();
+		};
+		if(ctx.state=="suspended"){
+			ctx.resume().then(function(){
+				CLog("ctx resume");
+				end();
+			});
+		}else{
+			end();
+		};
+	}
+	/*暂停录音*/
+	,pause:function(){
+		var This=this;
+		if(This.state){
+			This.state=2;
+			CLog("pause");
+			delete This._streamStore().Stream._call[This.id];
+		};
+	}
+	/*恢复录音*/
+	,resume:function(){
+		var This=this;
+		if(This.state){
+			This.state=1;
+			CLog("resume");
+			This.envResume();
+			
+			This._streamStore().Stream._call[This.id]=function(pcm,sum){
+				if(This.state==1){
+					This.envIn(pcm,sum);
+				};
+			};
+		};
+	}
+	
+	
+	
+	
+	,_stop:function(keepEngine){
+		var This=this,set=This.set;
+		if(!This.isMock){
+			This._S++;
+		};
+		if(This.state){
+			This.pause();
+			This.state=0;
+		};
+		if(!keepEngine && This[set.type+"_stop"]){
+			This[set.type+"_stop"](This.engineCtx);
+			This.engineCtx=0;
+		};
+	}
+	/*
+	结束录音并返回录音数据blob对象
+		True(blob,duration) blob：录音数据audio/mp3|wav格式
+							duration：录音时长，单位毫秒
+		False(msg)
+		autoClose:false 可选，是否自动调用close，默认为false
+	*/
+	,stop:function(True,False,autoClose){
+		var This=this,set=This.set,t1;
+		CLog("Stop "+(This.envInLast?This.envInLast-This.envInFirst+"ms 补"+This.envInFix+"ms":"-"));
+		
+		var end=function(){
+			This._stop();//彻底关掉engineCtx
+			if(autoClose){
+				This.close();
+			};
+		};
+		var err=function(msg){
+			CLog("结束录音失败："+msg,1);
+			False&&False(msg);
+			end();
+		};
+		var ok=function(blob,duration){
+			CLog("结束录音 编码"+(Date.now()-t1)+"ms 音频"+duration+"ms/"+blob.size+"b");
+			if(set.takeoffEncodeChunk){//接管了输出，此时blob长度为0
+				CLog("启用takeoffEncodeChunk后stop返回的blob长度为0不提供音频数据",3);
+			}else if(blob.size<Math.max(100,duration/2)){//1秒小于0.5k？
+				err("生成的"+set.type+"无效");
+				return;
+			};
+			True&&True(blob,duration);
+			end();
+		};
+		if(!This.isMock){
+			if(!This.state){
+				err("未开始录音");
+				return;
+			};
+			This._stop(true);
+		};
+		var size=This.recSize;
+		if(!size){
+			err("未采集到录音");
+			return;
+		};
+		if(!This.buffers[0]){
+			err("音频被释放");
+			return;
+		};
+		if(!This[set.type]){
+			err("未加载"+set.type+"编码器");
+			return;
+		};
+		
+		//环境配置检查，此处仅针对mock调用，因为open已经检查过了
+		if(This.isMock){
+			var checkMsg=This.envCheck(This.mockEnvInfo||{envName:"mock",canProcess:false});//没有提供环境信息的mock时没有onProcess回调
+			if(checkMsg){
+				err("录音错误："+checkMsg);
+				return;
+			};
+		};
+		
+		//此类型有边录边转码(Worker)支持
+		var engineCtx=This.engineCtx;
+		if(This[set.type+"_complete"]&&engineCtx){
+			var duration=Math.round(engineCtx.pcmSize/set.sampleRate*1000);//采用后的数据长度和buffers的长度可能微小的不一致，是采样率连续转换的精度问题
+			
+			t1=Date.now();
+			This[set.type+"_complete"](engineCtx,function(blob){
+				ok(blob,duration);
+			},err);
+			return;
+		};
+		
+		//标准UI线程转码，调整采样率
+		t1=Date.now();
+		var chunk=Recorder.SampleData(This.buffers,This.srcSampleRate,set.sampleRate);
+		
+		set.sampleRate=chunk.sampleRate;
+		var res=chunk.data;
+		var duration=Math.round(res.length/set.sampleRate*1000);
+		
+		CLog("采样"+size+"->"+res.length+" 花:"+(Date.now()-t1)+"ms");
+		
+		setTimeout(function(){
+			t1=Date.now();
+			This[set.type](res,function(blob){
+				ok(blob,duration);
+			},function(msg){
+				err(msg);
+			});
+		});
+	}
+
+};
+
+if(window.Recorder){
+	window.Recorder.Destroy();
+};
+window.Recorder=Recorder;
+
+//end ****copy源码结束*****
+Recorder.LM=LM;
+
+//流量统计用1像素图片地址，设置为空将不参与统计
+Recorder.TrafficImgUrl="//ia.51.la/go1?id=20469973&pvFlag=1";
+Recorder.Traffic=function(){
+	var imgUrl=Recorder.TrafficImgUrl;
+	if(imgUrl){
+		var data=Recorder.Traffic;
+		var idf=location.href.replace(/#.*/,"");
+		
+		if(imgUrl.indexOf("//")==0){
+			//给url加上http前缀，如果是file协议下，不加前缀没法用
+			if(/^https:/i.test(idf)){
+				imgUrl="https:"+imgUrl;
+			}else{
+				imgUrl="http:"+imgUrl;
+			};
+		};
+		
+		if(!data[idf]){
+			data[idf]=1;
+			
+			var img=new Image();
+			img.src=imgUrl;
+			CLog("Traffic Analysis Image: Recorder.TrafficImgUrl="+Recorder.TrafficImgUrl);
+		};
+	};
+};
+
+}));
\ No newline at end of file
diff --git a/web/static/js/wav.js b/web/static/js/wav.js
new file mode 100644
index 0000000..461908c
--- /dev/null
+++ b/web/static/js/wav.js
@@ -0,0 +1,86 @@
+/*
+wav编码器+编码引擎
+https://github.com/xiangyuecn/Recorder
+
+当然最佳推荐使用mp3、wav格式，代码也是优先照顾这两种格式
+浏览器支持情况
+https://developer.mozilla.org/en-US/docs/Web/HTML/Supported_media_formats
+
+编码原理：给pcm数据加上一个44直接的wav头即成wav文件；pcm数据就是Recorder中的buffers原始数据（重新采样），16位时为LE小端模式（Little Endian），实质上是未经过任何编码处理
+*/
+(function(){
+"use strict";
+
+Recorder.prototype.enc_wav={
+	stable:true
+	,testmsg:"支持位数8位、16位（填在比特率里面），采样率取值无限制"
+};
+Recorder.prototype.wav=function(res,True,False){
+		var This=this,set=This.set
+			,size=res.length
+			,sampleRate=set.sampleRate
+			,bitRate=set.bitRate==8?8:16;
+		
+		//编码数据 https://github.com/mattdiamond/Recorderjs https://www.cnblogs.com/blqw/p/3782420.html https://www.cnblogs.com/xiaoqi/p/6993912.html
+		var dataLength=size*(bitRate/8);
+		var buffer=new ArrayBuffer(44+dataLength);
+		var data=new DataView(buffer);
+		
+		var offset=0;
+		var writeString=function(str){
+			for (var i=0;i<str.length;i++,offset++) {
+				data.setUint8(offset,str.charCodeAt(i));
+			};
+		};
+		var write16=function(v){
+			data.setUint16(offset,v,true);
+			offset+=2;
+		};
+		var write32=function(v){
+			data.setUint32(offset,v,true);
+			offset+=4;
+		};
+		
+		/* RIFF identifier */
+		writeString('RIFF');
+		/* RIFF chunk length */
+		write32(36+dataLength);
+		/* RIFF type */
+		writeString('WAVE');
+		/* format chunk identifier */
+		writeString('fmt ');
+		/* format chunk length */
+		write32(16);
+		/* sample format (raw) */
+		write16(1);
+		/* channel count */
+		write16(1);
+		/* sample rate */
+		write32(sampleRate);
+		/* byte rate (sample rate * block align) */
+		write32(sampleRate*(bitRate/8));
+		/* block align (channel count * bytes per sample) */
+		write16(bitRate/8);
+		/* bits per sample */
+		write16(bitRate);
+		/* data chunk identifier */
+		writeString('data');
+		/* data chunk length */
+		write32(dataLength);
+		// 写入采样数据
+		if(bitRate==8) {
+			for(var i=0;i<size;i++,offset++) {
+				//16转8据说是雷霄骅的 https://blog.csdn.net/sevennight1989/article/details/85376149 细节比blqw的按比例的算法清晰点，虽然都有明显杂音
+				var val=(res[i]>>8)+128;
+				data.setInt8(offset,val,true);
+			};
+		}else{
+			for (var i=0;i<size;i++,offset+=2){
+				data.setInt16(offset,res[i],true);
+			};
+		};
+		
+		
+		True(new Blob([data.buffer],{type:"audio/wav"}));
+	}
+})();
\ No newline at end of file
diff --git a/web/templates/index.html b/web/templates/index.html
new file mode 100644
index 0000000..c9720da
--- /dev/null
+++ b/web/templates/index.html
@@ -0,0 +1,374 @@
+<!DOCTYPE HTML>
+<html>
+
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+	<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
+	<link rel="shortcut icon" type="image/png"
+		href="https://cdn.jsdelivr.net/gh/xiangyuecn/Recorder@latest/assets/icon.png">
+
+	<title>MockingBird Web Server</title>
+
+	<script src="{{ url_for('static',filename='js/recorder-core.js') }}"></script>
+	<script src="{{ url_for('static',filename='js/mp3.js') }}"></script>
+	<script src="{{ url_for('static',filename='js/wav.js') }}"></script>
+	<script src="{{ url_for('static',filename='js/mp3-engine.js') }}"></script>
+	<script src="{{ url_for('static',filename='js/frequency.histogram.view.js') }}"></script>
+	<script src="{{ url_for('static',filename='js/lib.fft.js') }}"></script>
+
+	<script src="{{ url_for('static',filename='js/jquery.js') }}"></script>
+</head>
+
+<body>
+
+	<div class="main">
+
+		<div class="mainBox">
+			<div class="pd btns">
+				<!-- <div>
+				<button onclick="recOpen()" style="margin-right:10px">打开录音,请求权限</button>
+				<button onclick="recClose()" style="margin-right:0">关闭录音,释放资源</button>
+			</div> -->
+				<button onclick="recStart()" style="margin-left:100px">录制</button>
+				<button onclick="recStop()" style="margin-left:100px">停止</button>
+				<button onclick="recPlay()" style="margin-left:100px">播放</button>
+			</div>
+
+			<!-- 波形绘制区域 -->
+			<div class="pd recpower">
+				<div style="height:40px;width:100%;background:#fff;position:relative;">
+					<div class="recpowerx" style="height:40px;background:#ff3295;position:absolute;"></div>
+					<div class="recpowert" style="padding-left:50px; line-height:40px; position: relative;"></div>
+				</div>
+			</div>
+			<div class="pd waveBox" style="height:100px;">
+				<div style="border:1px solid #ccc;display:inline-block; width: 100%; height: 100px;">
+					<div style="height:100px; width: 100%; background-color: #FE76B8; position: relative;left: 0px;top: 0px;z-index: 10;"
+						class="recwave"></div>
+					<div
+						style="background-color: transparent;position: relative;top: -80px;left: 30%;z-index: 20;font-size: 48px;color: #fff;">
+						音频预览</div>
+				</div>
+			</div>
+			<div>
+				<div>请输入文本：</div>
+				<input type="text" id="user_input_text"
+					style="border:1px solid #ccc; width: 100%; height: 20px; font-size: 18px;" />
+			</div>
+			<div class="pd btns">
+				<button onclick="recUpload()" style="margin-left: 300px; margin-top: 15px;">上传</button>
+			</div>
+		</div>
+
+		<!-- 日志输出区域 -->
+		<div class="mainBox">
+			<div class="reclog"></div>
+		</div>
+	</div>
+
+
+	<script>
+		var rec, wave, recBlob;
+		/**调用open打开录音请求好录音权限**/
+		var recOpen = function () {//一般在显示出录音按钮或相关的录音界面时进行此方法调用，后面用户点击开始录音时就能畅通无阻了
+			rec = null;
+			wave = null;
+			recBlob = null;
+			var newRec = Recorder({
+				type: "wav", bitRate: 16, sampleRate: 16000
+				, onProcess: function (buffers, powerLevel, bufferDuration, bufferSampleRate, newBufferIdx, asyncEnd) {
+					//录音实时回调，大约1秒调用12次本回调
+					document.querySelector(".recpowerx").style.width = powerLevel + "%";
+					document.querySelector(".recpowert").innerText = bufferDuration + " / " + powerLevel;
+
+					//可视化图形绘制
+					wave.input(buffers[buffers.length - 1], powerLevel, bufferSampleRate);
+				}
+			});
+
+			createDelayDialog(); //我们可以选择性的弹一个对话框：为了防止移动端浏览器存在第三种情况：用户忽略，并且（或者国产系统UC系）浏览器没有任何回调，此处demo省略了弹窗的代码
+			newRec.open(function () {//打开麦克风授权获得相关资源
+				dialogCancel(); //如果开启了弹框，此处需要取消
+
+				rec = newRec;
+
+				//此处创建这些音频可视化图形绘制浏览器支持妥妥的
+				wave = Recorder.FrequencyHistogramView({ elem: ".recwave" });
+
+				reclog("已打开录音，可以点击录制开始录音了", 2);
+			}, function (msg, isUserNotAllow) {//用户拒绝未授权或不支持
+				dialogCancel(); //如果开启了弹框，此处需要取消
+				reclog((isUserNotAllow ? "UserNotAllow，" : "") + "打开录音失败：" + msg, 1);
+			});
+
+			window.waitDialogClick = function () {
+				dialogCancel();
+				reclog("打开失败：权限请求被忽略，<span style='color:#f00'>用户主动点击的弹窗</span>", 1);
+			};
+		};
+
+
+
+		/**关闭录音，释放资源**/
+		function recClose() {
+			if (rec) {
+				rec.close();
+				reclog("已关闭");
+			} else {
+				reclog("未打开录音", 1);
+			};
+		};
+
+
+
+		/**开始录音**/
+		function recStart() {//打开了录音后才能进行start、stop调用
+			if (rec && Recorder.IsOpen()) {
+				recBlob = null;
+				rec.start();
+				reclog("已开始录音...");
+			} else {
+				reclog("未打开录音，请求录音权限，如已允许录音权限，请再次点击录制", 1);
+				recOpen();
+			};
+		};
+
+		function recStop() {
+			rec.stop(function (blob, duration) {
+				rec.close();//释放录音资源
+				console.log(blob, (window.URL || webkitURL).createObjectURL(blob), "时长:" + duration + "ms");
+				recBlob = blob;
+				reclog("已录制wav：" + duration + "ms " + blob.size + "字节，可以点击播放、上传了", 2);
+			}, function (msg) {
+				reclog("录音失败:" + msg, 1);
+			});
+		};
+
+
+		/**播放**/
+		function recPlay() {
+			if (!recBlob) {
+				reclog("请先录音，然后停止后再播放", 1);
+				return;
+			};
+			var cls = ("a" + Math.random()).replace(".", "");
+			reclog('播放中: <span class="' + cls + '"></span>');
+			var audio = document.createElement("audio");
+			audio.controls = true;
+			document.querySelector("." + cls).appendChild(audio);
+			//简单利用URL生成播放地址，注意不用了时需要revokeObjectURL，否则霸占内存
+			audio.src = (window.URL || webkitURL).createObjectURL(recBlob);
+			audio.play();
+
+			setTimeout(function () {
+				(window.URL || webkitURL).revokeObjectURL(audio.src);
+			}, 5000);
+		};
+
+		function playResult(resultBlob) {
+			if (!resultBlob) {
+				reclog("服务端出错，请重试", 1);
+				return;
+			};
+			var cls = ("a" + Math.random()).replace(".", "");
+			reclog('播放中: <span class="' + cls + '"></span>');
+			var audio = document.createElement("audio");
+			audio.controls = true;
+			document.querySelector("." + cls).appendChild(audio);
+			//简单利用URL生成播放地址，注意不用了时需要revokeObjectURL，否则霸占内存
+			audio.src = (window.URL || webkitURL).createObjectURL(resultBlob);
+			audio.play();
+
+			setTimeout(function () {
+				(window.URL || webkitURL).revokeObjectURL(audio.src);
+			}, 12000);
+		};
+
+		/**上传**/
+		function recUpload() {
+			var blob = recBlob;
+			if (!blob) {
+				reclog("请先录音，然后停止后再上传", 1);
+				return;
+			};
+
+			//本例子假设使用原始XMLHttpRequest请求方式，实际使用中自行调整为自己的请求方式
+			//录音结束时拿到了blob文件对象，可以用FileReader读取出内容，或者用FormData上传
+			var api = "http://127.0.0.1:8080/api/synthesize";
+
+			reclog("开始上传到" + api + "，请求稍后...");
+
+			var reader = new FileReader();
+			reader.onloadend = function () {
+				var csrftoken = "{{ csrf_token() }}";
+				var user_input_text = document.getElementById("user_input_text");
+				var input_text = user_input_text.value;
+				var postData = "";
+				postData += "mime=" + encodeURIComponent(blob.type);//告诉后端，这个录音是什么格式的，可能前后端都固定的mp3可以不用写
+				postData += "&upfile_b64=" + encodeURIComponent((/.+;\s*base64\s*,\s*(.+)$/i.exec(reader.result) || [])[1]) //录音文件内容，后端进行base64解码成二进制
+				postData += "&text=" + encodeURIComponent(input_text);
+
+				fetch(api, {
+					method: 'post',
+					headers: {
+						"Content-type": "application/x-www-form-urlencoded; charset=UTF-8",
+						"X-CSRFToken": csrftoken
+					},
+					body: postData
+				}).then(function (res) {
+					if (!res.ok) throw Error(res.statusText);
+					return res.blob();
+				}).then(function (blob) {
+					playResult(blob)
+				}).catch(function (err) {
+					console.log('Error: ' + err.message);
+				})
+			};
+			reader.readAsDataURL(blob);
+		};
+
+		//recOpen我们可以选择性的弹一个对话框：为了防止移动端浏览器存在第三种情况：用户忽略，并且（或者国产系统UC系）浏览器没有任何回调
+		var showDialog = function () {
+			if (!/mobile/i.test(navigator.userAgent)) {
+				return;//只在移动端开启没有权限请求的检测
+			};
+			dialogCancel();
+
+			//显示弹框，应该使用自己的弹框方式
+			var div = document.createElement("div");
+			document.body.appendChild(div);
+			div.innerHTML = (''
+				+ '<div class="waitDialog" style="z-index:99999;width:100%;height:100%;top:0;left:0;position:fixed;background:rgba(0,0,0,0.3);">'
+				+ '<div style="display:flex;height:100%;align-items:center;">'
+				+ '<div style="flex:1;"></div>'
+				+ '<div style="width:240px;background:#fff;padding:15px 20px;border-radius: 10px;">'
+				+ '<div style="padding-bottom:10px;">录音功能需要麦克风权限，请允许；如果未看到任何请求，请点击忽略~</div>'
+				+ '<div style="text-align:center;"><a onclick="waitDialogClick()" style="color:#0B1">忽略</a></div>'
+				+ '</div>'
+				+ '<div style="flex:1;"></div>'
+				+ '</div>'
+				+ '</div>');
+		};
+		var createDelayDialog = function () {
+			dialogInt = setTimeout(function () {//定时8秒后打开弹窗，用于监测浏览器没有发起权限请求的情况，在open前放置定时器利于收到了回调能及时取消（不管open是同步还是异步回调的）
+				showDialog();
+			}, 8000);
+		};
+		var dialogInt;
+		var dialogCancel = function () {
+			clearTimeout(dialogInt);
+
+			//关闭弹框，应该使用自己的弹框方式
+			var elems = document.querySelectorAll(".waitDialog");
+			for (var i = 0; i < elems.length; i++) {
+				elems[i].parentNode.removeChild(elems[i]);
+			};
+		};
+//recOpen弹框End
+	</script>
+
+	<!--以下这坨可以忽略-->
+	<script>
+		function reclog(s, color) {
+			var now = new Date();
+			var t = ("0" + now.getHours()).substr(-2)
+				+ ":" + ("0" + now.getMinutes()).substr(-2)
+				+ ":" + ("0" + now.getSeconds()).substr(-2);
+			var div = document.createElement("div");
+			var elem = document.querySelector(".reclog");
+			elem.insertBefore(div, elem.firstChild);
+			div.innerHTML = '<div style="color:' + (!color ? "" : color == 1 ? "red" : color == 2 ? "#FE76B8" : color) + '">[' + t + ']' + s + '</div>';
+		};
+		window.onerror = function (message, url, lineNo, columnNo, error) {
+			reclog('<span style="color:red">【Uncaught Error】' + message + '<pre>' + "at:" + lineNo + ":" + columnNo + " url:" + url + "\n" + (error && error.stack || "不能获得错误堆栈") + '</pre></span>');
+		};
+	</script>
+
+	<script>
+		if (/mobile/i.test(navigator.userAgent)) {
+			//移动端加载控制台组件
+			var elem = document.createElement("script");
+			elem.setAttribute("type", "text/javascript");
+
+			elem.setAttribute("src", "{{ url_for('static',filename='js/eruda.min.js') }}");
+			document.body.appendChild(elem);
+			elem.onload = function () {
+				eruda.init();
+			};
+		};
+	</script>
+
+
+	<style>
+		body {
+			word-wrap: break-word;
+			background: #f5f5f5 center top no-repeat;
+			background-size: auto 680px;
+		}
+
+		pre {
+			white-space: pre-wrap;
+		}
+
+		a {
+			text-decoration: none;
+			color: #FE76B8;
+		}
+
+		a:hover {
+			color: #f00;
+		}
+
+		.main {
+			max-width: 700px;
+			margin: 0 auto;
+			padding-bottom: 80px
+		}
+
+		.mainBox {
+			margin-top: 12px;
+			padding: 12px;
+			border-radius: 6px;
+			background: #fff;
+			--border: 1px solid #f60;
+			box-shadow: 2px 2px 3px #aaa;
+		}
+
+
+		.btns button {
+			display: inline-block;
+			cursor: pointer;
+			border: none;
+			border-radius: 3px;
+			background: #FE76B8;
+			color: #fff;
+			padding: 0 15px;
+			margin: 3px 20px 3px 0;
+			line-height: 36px;
+			height: 36px;
+			overflow: hidden;
+			vertical-align: middle;
+		}
+
+		.btns button:active {
+			background: #fd54a6
+		}
+
+		.pd {
+			padding: 0 0 6px 0;
+		}
+
+		.lb {
+			display: inline-block;
+			vertical-align: middle;
+			background: #ff3d9b;
+			color: #fff;
+			font-size: 14px;
+			padding: 2px 8px;
+			border-radius: 99px;
+		}
+	</style>
+
+</body>
+
+</html>
\ No newline at end of file