NetVideoSource, YUV shader, fixes

qtox.pro

@@ -134,7 +134,9 @@ HEADERS  += src/widget/form/addfriendform.h \
     src/widget/maskablepixmapwidget.h \
     src/videosource.h \
     src/cameraworker.h \
-    src/widget/videosurface.h
+    src/widget/videosurface.h \
+    src/netvideosource.h \
+    src/videosource.h
 
 SOURCES += \
     src/widget/form/addfriendform.cpp \
@@ -181,4 +183,5 @@ SOURCES += \
     src/widget/tool/chatactions/actionaction.cpp \
     src/widget/maskablepixmapwidget.cpp \
     src/cameraworker.cpp \
-    src/widget/videosurface.cpp
+    src/widget/videosurface.cpp \
+    src/netvideosource.cpp

src/cameraworker.cpp

@@ -140,6 +140,7 @@ void CameraWorker::unsubscribe()
     if(refCount <= 0)
     {
         cam.release();
+        refCount = 0;
     }
 }
 

src/core.h

@@ -29,6 +29,7 @@ class Camera;
 class QTimer;
 class QString;
 class CString;
+class VideoSource;
 
 class Core : public QObject
 {
@@ -60,6 +61,7 @@ public:
     QString getStatusMessage();
     ToxID getSelfId();
 
+    VideoSource* getVideoSourceFromCall(int callNumber);
     void increaseVideoBusyness();
     void decreaseVideoBusyness();
 

src/coreav.cpp

@@ -231,10 +231,8 @@ void Core::playCallVideo(ToxAv*, int32_t callId, vpx_image_t* img, void *user_da
     if (!calls[callId].active || !calls[callId].videoEnabled)
         return;
 
-    if (videoBusyness >= 1)
+    calls[callId].videoSource.pushVPXFrame(img);
-        qWarning() << "Core: playCallVideo: Busy, dropping current frame";
+
-    else
-        emit Core::getInstance()->videoFrameReceived(img);
     vpx_img_free(img);
 }
 
@@ -550,3 +548,9 @@ void Core::playAudioBuffer(int callId, int16_t *data, int samples, unsigned chan
         qDebug() << "Core: Starting audio source of call " << callId;
     }
 }
+
+VideoSource *Core::getVideoSourceFromCall(int callNumber)
+{
+    return &calls[callNumber].videoSource;
+}
+

src/coreav.h

@@ -2,6 +2,7 @@
 #define COREAV_H
 
 #include <tox/toxav.h>
+#include "netvideosource.h"
 
 #if defined(__APPLE__) && defined(__MACH__)
  #include <OpenAL/al.h>
@@ -24,6 +25,7 @@ public:
     bool active;
     bool muteMic;
     ALuint alSource;
+    NetVideoSource videoSource;
 };
 
 #endif // COREAV_H

src/netvideosource.cpp

@@ -0,0 +1,64 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+    This program 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 COPYING file for more details.
+*/
+
+#include "netvideosource.h"
+
+#include <QDebug>
+#include <vpx/vpx_image.h>
+
+NetVideoSource::NetVideoSource()
+{
+}
+
+void NetVideoSource::pushFrame(VideoFrame frame)
+{
+    emit frameAvailable(frame);
+}
+
+void NetVideoSource::pushVPXFrame(vpx_image *image)
+{
+    int dw = image->d_w;
+    int dh = image->d_h;
+
+    int bpl = image->stride[VPX_PLANE_Y];
+    int cxbpl = image->stride[VPX_PLANE_V];
+
+    VideoFrame frame;
+    frame.frameData.resize(dw * dh * 3); //YUV 24bit
+    frame.resolution = QSize(dw, dh);
+    frame.format = VideoFrame::YUV;
+
+    uint8_t* yData = image->planes[VPX_PLANE_Y];
+    uint8_t* uData = image->planes[VPX_PLANE_V];
+    uint8_t* vData = image->planes[VPX_PLANE_U];
+
+    for (int x = 0; x < dw; x += 1)
+    {
+        for (int y = 0; y < dh; y += 1)
+        {
+            uint8_t Y = yData[x + y * bpl];
+            uint8_t U = uData[x/2 + y/2*cxbpl];
+            uint8_t V = vData[x/2 + y/2*cxbpl];
+
+            frame.frameData.data()[dw * 3 * y + x * 3 + 0] = Y;
+            frame.frameData.data()[dw * 3 * y + x * 3 + 1] = U;
+            frame.frameData.data()[dw * 3 * y + x * 3 + 2] = V;
+
+        }
+    }
+
+    pushFrame(frame);
+}

src/netvideosource.h

@@ -0,0 +1,36 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+    This program 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 COPYING file for more details.
+*/
+
+#ifndef NETVIDEOSOURCE_H
+#define NETVIDEOSOURCE_H
+
+#include "videosource.h"
+
+class vpx_image;
+
+class NetVideoSource : public VideoSource
+{
+public:
+    NetVideoSource();
+
+    void pushFrame(VideoFrame frame);
+    void pushVPXFrame(vpx_image* image);
+
+    virtual void subscribe() {}
+    virtual void unsubscribe() {}
+};
+
+#endif // NETVIDEOSOURCE_H

src/videosource.h

@@ -9,30 +9,34 @@ struct VideoFrame
 {
     enum ColorFormat
     {
+        NONE,
         BGR,
         YUV,
     };
 
-    QByteArray data;
+    QByteArray frameData;
     QSize resolution;
     ColorFormat format;
 
+    VideoFrame() : format(NONE) {}
+    VideoFrame(QByteArray d, QSize r, ColorFormat f) : frameData(d), resolution(r), format(f) {}
+
     void setNull()
     {
-        data = QByteArray();
+        frameData = QByteArray();
     }
 
     bool isNull()
     {
-        return data.isEmpty();
+        return frameData.isEmpty();
     }
 
     // assumes format is BGR
     QRgb getPixel(int x, int y)
     {
-        char b = data.data()[resolution.width() * 3 * y + x * 3 + 0];
+        char b = frameData.data()[resolution.width() * 3 * y + x * 3 + 0];
-        char g = data.data()[resolution.width() * 3 * y + x * 3 + 1];
+        char g = frameData.data()[resolution.width() * 3 * y + x * 3 + 1];
-        char r = data.data()[resolution.width() * 3 * y + x * 3 + 2];
+        char r = frameData.data()[resolution.width() * 3 * y + x * 3 + 2];
 
         return qRgb(r, g, b);
     }
@@ -47,7 +51,6 @@ class VideoSource : public QObject
 public:
     virtual void subscribe() = 0;
     virtual void unsubscribe() = 0;
-    virtual VideoFrame::ColorFormat getColorFormat() = 0;
 
 signals:
     void frameAvailable(const VideoFrame frame);

src/widget/camera.cpp

@@ -71,11 +71,6 @@ void Camera::unsubscribe()
     }
 }
 
-VideoFrame::ColorFormat Camera::getColorFormat()
-{
-    return VideoFrame::BGR;
-}
-
 vpx_image Camera::getLastVPXImage()
 {
     QMutexLocker lock(&mutex);

src/widget/camera.h

@@ -60,7 +60,6 @@ public:
     // VideoSource interface
     virtual void subscribe();
     virtual void unsubscribe();
-    virtual VideoFrame::ColorFormat getColorFormat();
 
 protected:
     Camera();

src/widget/form/chatform.cpp

@@ -56,7 +56,6 @@ ChatForm::ChatForm(Friend* chatFriend)
     headTextLayout->setSpacing(0);
 
     connect(Core::getInstance(), &Core::fileSendStarted, this, &ChatForm::startFileSend);
-    connect(Core::getInstance(), &Core::videoFrameReceived, netcam, &NetCamView::updateDisplay);
     connect(sendButton, &QPushButton::clicked, this, &ChatForm::onSendTriggered);
     connect(fileButton, &QPushButton::clicked, this, &ChatForm::onAttachClicked);
     connect(callButton, &QPushButton::clicked, this, &ChatForm::onCallTriggered);
@@ -256,6 +255,7 @@ void ChatForm::onAvCancel(int FriendId, int)
     videoButton->style()->polish(videoButton);
     connect(callButton, SIGNAL(clicked()), this, SLOT(onCallTriggered()));
     connect(videoButton, SIGNAL(clicked()), this, SLOT(onVideoCallTriggered()));
+    netcam->setSource(nullptr);
     netcam->hide();
 }
 
@@ -275,6 +275,7 @@ void ChatForm::onAvEnd(int FriendId, int)
     videoButton->style()->polish(videoButton);
     connect(callButton, SIGNAL(clicked()), this, SLOT(onCallTriggered()));
     connect(videoButton, SIGNAL(clicked()), this, SLOT(onVideoCallTriggered()));
+    netcam->setSource(nullptr);
     netcam->hide();
 }
 
@@ -304,7 +305,7 @@ void ChatForm::onAvRinging(int FriendId, int CallId, bool video)
     }
 }
 
-void ChatForm::onAvStarting(int FriendId, int, bool video)
+void ChatForm::onAvStarting(int FriendId, int callId, bool video)
 {
     if (FriendId != f->friendId)
         return;
@@ -318,6 +319,7 @@ void ChatForm::onAvStarting(int FriendId, int, bool video)
         videoButton->setObjectName("red");
         videoButton->style()->polish(videoButton);
         connect(videoButton, SIGNAL(clicked()), this, SLOT(onHangupCallTriggered()));
+        netcam->setSource(Core::getInstance()->getVideoSourceFromCall(callId));
         netcam->show();
     }
     else
@@ -369,6 +371,7 @@ void ChatForm::onAvRequestTimeout(int FriendId, int)
     videoButton->disconnect();
     connect(callButton, SIGNAL(clicked()), this, SLOT(onCallTriggered()));
     connect(videoButton, SIGNAL(clicked()), this, SLOT(onVideoCallTriggered()));
+    netcam->setSource(nullptr);
     netcam->hide();
 }
 
@@ -390,6 +393,7 @@ void ChatForm::onAvPeerTimeout(int FriendId, int)
     videoButton->disconnect();
     connect(callButton, SIGNAL(clicked()), this, SLOT(onCallTriggered()));
     connect(videoButton, SIGNAL(clicked()), this, SLOT(onVideoCallTriggered()));
+    netcam->setSource(nullptr);
     netcam->hide();
 }
 
@@ -401,6 +405,7 @@ void ChatForm::onAvMediaChange(int, int, bool video)
     }
     else
     {
+        netcam->setSource(nullptr);
         netcam->hide();
     }
 }
@@ -450,6 +455,7 @@ void ChatForm::onCancelCallTriggered()
     videoButton->disconnect();
     connect(callButton, SIGNAL(clicked()), this, SLOT(onCallTriggered()));
     connect(videoButton, SIGNAL(clicked()), this, SLOT(onVideoCallTriggered()));
+    netcam->setSource(nullptr);
     netcam->hide();
     emit cancelCall(callId, f->friendId);
 }

src/widget/form/chatform.h

@@ -50,7 +50,7 @@ public slots:
     void onAvCancel(int FriendId, int CallId);
     void onAvEnd(int FriendId, int CallId);
     void onAvRinging(int FriendId, int CallId, bool video);
-    void onAvStarting(int FriendId, int CallId, bool video);
+    void onAvStarting(int FriendId, int callId, bool video);
     void onAvEnding(int FriendId, int CallId);
     void onAvRequestTimeout(int FriendId, int CallId);
     void onAvPeerTimeout(int FriendId, int CallId);

src/widget/form/settings/avform.cpp

@@ -23,8 +23,6 @@ AVForm::AVForm() :
 {
     bodyUI = new Ui::AVSettings;
     bodyUI->setupUi(this);
-
-    bodyUI->CamVideoSurface->setSource(Camera::getInstance());
 }
 
 AVForm::~AVForm()
@@ -34,6 +32,8 @@ AVForm::~AVForm()
 
 void AVForm::present()
 {
+    bodyUI->CamVideoSurface->setSource(Camera::getInstance());
+
     bodyUI->videoModescomboBox->clear();
     QList<QSize> res = Camera::getInstance()->getSupportedResolutions();
     for (QSize r : res)
@@ -73,3 +73,8 @@ void AVForm::on_videoModescomboBox_currentIndexChanged(const QString &arg1)
 
     Camera::getInstance()->setResolution(QSize(w,h));
 }
+
+void AVForm::hideEvent(QHideEvent *)
+{
+    bodyUI->CamVideoSurface->setSource(nullptr);
+}

src/widget/form/settings/avform.h

@@ -45,6 +45,8 @@ private slots:
     void on_HueSlider_sliderMoved(int position);
     void on_videoModescomboBox_currentIndexChanged(const QString &arg1);
 
+    virtual void hideEvent(QHideEvent*);
+
 private:
     Ui::AVSettings *bodyUI;
     VideoSurface* camView;

src/widget/netcamview.cpp

@@ -15,102 +15,29 @@
 */
 
 #include "netcamview.h"
+<<<<<<< HEAD:src/widget/netcamview.cpp
 #include "src/core.h"
+=======
+#include "core.h"
+#include "widget/videosurface.h"
+>>>>>>> NetVideoSource, YUV shader, fixes:widget/netcamview.cpp
 #include <QLabel>
 #include <QHBoxLayout>
 
-static inline void fromYCbCrToRGB(
-        uint8_t Y, uint8_t Cb, uint8_t Cr,
-        uint8_t& R, uint8_t& G, uint8_t& B)
-{
-    int r = Y + ((1436 * (Cr - 128)) >> 10),
-        g = Y - ((354 * (Cb - 128) + 732 * (Cr - 128)) >> 10),
-        b = Y + ((1814 * (Cb - 128)) >> 10);
-
-    if(r < 0) {
-        r = 0;
-    } else if(r > 255) {
-        r = 255;
-    }
-
-    if(g < 0) {
-        g = 0;
-    } else if(g > 255) {
-        g = 255;
-    }
-
-    if(b < 0) {
-        b = 0;
-    } else if(b > 255) {
-        b = 255;
-    }
-
-    R = static_cast<uint8_t>(r);
-    G = static_cast<uint8_t>(g);
-    B = static_cast<uint8_t>(b);
-}
-
-
 NetCamView::NetCamView(QWidget* parent)
-    : QWidget(parent), displayLabel{new QLabel},
+    : QWidget(parent)
-      mainLayout{new QHBoxLayout()}
+    , mainLayout{new QHBoxLayout()}
 {
     setLayout(mainLayout);
     setWindowTitle("Tox video");
     setMinimumSize(320,240);
 
-    displayLabel->setAlignment(Qt::AlignCenter);
+    videoSurface = new VideoSurface(this);
 
-    mainLayout->addWidget(displayLabel);
+    mainLayout->addWidget(videoSurface);
 }
 
-void NetCamView::updateDisplay(vpx_image* frame)
+void NetCamView::setSource(VideoSource *s)
 {
-    if (!frame->w || !frame->h)
+    videoSurface->setSource(s);
-        return;
-
-    Core* core = Core::getInstance();
-
-    core->increaseVideoBusyness();
-
-    img = convert(*frame);
-
-    vpx_img_free(frame);
-    displayLabel->setPixmap(QPixmap::fromImage(img).scaled(displayLabel->size(), Qt::KeepAspectRatio, Qt::SmoothTransformation));
-
-    core->decreaseVideoBusyness();
-}
-
-QImage NetCamView::convert(vpx_image& frame)
-{
-    int w = frame.d_w, h = frame.d_h;
-    int bpl = frame.stride[VPX_PLANE_Y], cxbpl = frame.stride[VPX_PLANE_V];
-    QImage img(w, h, QImage::Format_RGB32);
-
-    uint8_t* yData = frame.planes[VPX_PLANE_Y];
-    uint8_t* uData = frame.planes[VPX_PLANE_V];
-    uint8_t* vData = frame.planes[VPX_PLANE_U];
-    for (int i = 0; i< h; i++)
-    {
-        uint32_t* scanline = (uint32_t*)img.scanLine(i);
-        for (int j=0; j < w; j++)
-        {
-            uint8_t Y = yData[i*bpl + j];
-            uint8_t U = uData[i/2*cxbpl + j/2];
-            uint8_t V = vData[i/2*cxbpl + j/2];
-
-            uint8_t R, G, B;
-            fromYCbCrToRGB(Y, U, V, R, G, B);
-
-            scanline[j] = (0xFF<<24) + (R<<16) + (G<<8) + B;
-        }
-    }
-
-    return img;
-}
-
-void NetCamView::resizeEvent(QResizeEvent *e)
-{
-    Q_UNUSED(e)
-    displayLabel->setPixmap(QPixmap::fromImage(img).scaled(displayLabel->size(), Qt::KeepAspectRatio, Qt::SmoothTransformation));
 }

src/widget/netcamview.h

@@ -19,13 +19,10 @@
 
 #include <QWidget>
 
-class QCloseEvent;
-class QShowEvent;
-class QPainter;
-class QLabel;
 class QHBoxLayout;
-class QImage;
 class vpx_image;
+class VideoSurface;
+class VideoSource;
 
 class NetCamView : public QWidget
 {
@@ -35,19 +32,11 @@ public:
     NetCamView(QWidget *parent=0);
 
 public slots:
-    void updateDisplay(vpx_image* frame);
+    void setSource(VideoSource* s);
 
 private:
-    static QImage convert(vpx_image& frame);
-
-protected:
-    void resizeEvent(QResizeEvent *e);
-
-private:
-    QLabel *displayLabel;
-    QImage lastFrame;
     QHBoxLayout* mainLayout;
-    QImage img;
+    VideoSurface* videoSurface;
 };
 
 #endif // NETCAMVIEW_H

src/widget/videosurface.cpp

@@ -27,7 +27,6 @@ VideoSurface::VideoSurface(QWidget* parent)
     : QGLWidget(QGLFormat(QGL::SampleBuffers | QGL::SingleBuffer), parent)
     , source(nullptr)
     , pbo{nullptr, nullptr}
-    , bgrProgramm(nullptr)
     , textureId(0)
     , pboAllocSize(0)
     , hasSubscribed(false)
@@ -36,10 +35,10 @@ VideoSurface::VideoSurface(QWidget* parent)
     setAutoBufferSwap(false);
 }
 
-VideoSurface::VideoSurface(VideoSource *Source, QWidget* parent)
+VideoSurface::VideoSurface(VideoSource *source, QWidget* parent)
     : VideoSurface(parent)
 {
-    source = Source;
+    setSource(source);
 }
 
 VideoSurface::~VideoSurface()
@@ -53,30 +52,17 @@ VideoSurface::~VideoSurface()
     if (textureId != 0)
         glDeleteTextures(1, &textureId);
 
-    if (source && hasSubscribed)
+    unsubscribe();
-        source->unsubscribe();
 }
 
 void VideoSurface::setSource(VideoSource *src)
 {
-    source = src;
+    if (source == src)
-}
+        return;
 
-void VideoSurface::hideEvent(QHideEvent *ev)
-{
     unsubscribe();
-    QGLWidget::hideEvent(ev);
+    source = src;
-}
-
-void VideoSurface::showEvent(QShowEvent *ev)
-{
     subscribe();
-    QGLWidget::showEvent(ev);
-}
-
-QSize VideoSurface::sizeHint() const
-{
-    return QGLWidget::sizeHint();
 }
 
 void VideoSurface::initializeGL()
@@ -113,13 +99,33 @@ void VideoSurface::initializeGL()
 
     bgrProgramm->bindAttributeLocation("vertices", 0);
     bgrProgramm->link();
+
+    // shaders
+    yuvProgramm = new QOpenGLShaderProgram;
+    yuvProgramm->addShaderFromSourceCode(QOpenGLShader::Vertex,
+                                     "attribute vec4 vertices;"
+                                     "varying vec2 coords;"
+                                     "void main() {"
+                                     "    gl_Position = vec4(vertices.xy,0.0,1.0);"
+                                     "    coords = vertices.xy*vec2(0.5,0.5)+vec2(0.5,0.5);"
+                                     "}");
+
+    // brg frag-shader
+    yuvProgramm->addShaderFromSourceCode(QOpenGLShader::Fragment,
+                                     "uniform sampler2D texture0;"
+                                     "varying vec2 coords;"
+                                     "void main() {"
+                                     "      vec3 yuv = texture2D(texture0,coords*vec2(1.0, -1.0)) - vec3(0,0.5,0.5);"
+                                     "      vec3 rgb = mat3(1,1,1,0,-0.21482,2.12798,1.28033,-0.38059,0) * yuv;"
+                                     "      gl_FragColor = vec4(rgb,1);"
+                                     "}");
+
+    yuvProgramm->bindAttributeLocation("vertices", 0);
+    yuvProgramm->link();
 }
 
 void VideoSurface::paintGL()
 {
-    if (!source)
-        return;
-
     mutex.lock();
     VideoFrame currFrame = frame;
     mutex.unlock();
@@ -140,25 +146,22 @@ void VideoSurface::paintGL()
 
     if (!currFrame.isNull())
     {
-        QElapsedTimer timer;
-        timer.start();
-
         pboIndex = (pboIndex + 1) % 2;
         int nextPboIndex = (pboIndex + 1) % 2;
 
-        if (pboAllocSize != currFrame.data.size())
+        if (pboAllocSize != currFrame.frameData.size())
         {
-            qDebug() << "VideoSurface: Resize pbo " << currFrame.data.size() << "bytes (before" << pboAllocSize << ")";
+            qDebug() << "VideoSurface: Resize pbo " << currFrame.frameData.size() << "bytes (before" << pboAllocSize << ")";
 
             pbo[0]->bind();
-            pbo[0]->allocate(currFrame.data.size());
+            pbo[0]->allocate(currFrame.frameData.size());
             pbo[0]->release();
 
             pbo[1]->bind();
-            pbo[1]->allocate(currFrame.data.size());
+            pbo[1]->allocate(currFrame.frameData.size());
             pbo[1]->release();
 
-            pboAllocSize = currFrame.data.size();
+            pboAllocSize = currFrame.frameData.size();
         }
 
 
@@ -172,7 +175,7 @@ void VideoSurface::paintGL()
         pbo[nextPboIndex]->bind();
         void* ptr = pbo[nextPboIndex]->map(QOpenGLBuffer::WriteOnly);
         if (ptr)
-            memcpy(ptr, currFrame.data.data(), currFrame.data.size());
+            memcpy(ptr, currFrame.frameData.data(), currFrame.frameData.size());
         pbo[nextPboIndex]->unmap();
         pbo[nextPboIndex]->release();
 
@@ -206,17 +209,36 @@ void VideoSurface::paintGL()
         glViewport((width() - w)*0.5f, 0, w, height());
     }
 
-    bgrProgramm->bind();
+    QOpenGLShaderProgram* programm = nullptr;
-    bgrProgramm->setAttributeArray(0, GL_FLOAT, values, 2);
+    switch (frame.format)
-    bgrProgramm->enableAttributeArray(0);
+    {
+    case VideoFrame::YUV:
+        programm = yuvProgramm;
+        break;
+    case VideoFrame::BGR:
+        programm = bgrProgramm;
+        break;
+    }
+
+    if (programm)
+    {
+        programm->bind();
+        programm->setAttributeArray(0, GL_FLOAT, values, 2);
+        programm->enableAttributeArray(0);
+    }
+
     glBindTexture(GL_TEXTURE_2D, textureId);
 
     //draw fullscreen quad
     glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 
     glBindTexture(GL_TEXTURE_2D, 0);
-    bgrProgramm->disableAttributeArray(0);
+
-    bgrProgramm->release();
+    if (programm)
+    {
+        programm->disableAttributeArray(0);
+        programm->release();
+    }
 }
 
 void VideoSurface::subscribe()

src/widget/videosurface.h

@@ -19,7 +19,7 @@
 
 #include <QGLWidget>
 #include <QMutex>
-#include "videosource.h"
+#include "src/videosource.h"
 
 class QOpenGLBuffer;
 class QOpenGLShaderProgram;
@@ -33,10 +33,7 @@ public:
     VideoSurface(VideoSource* source, QWidget* parent=0);
     ~VideoSurface();
 
-    void setSource(VideoSource* src);
+    void setSource(VideoSource* src); //NULL is a valid option
-    virtual void hideEvent(QHideEvent* ev);
-    virtual void showEvent(QShowEvent* ev);
-    virtual QSize sizeHint() const;
 
     // QGLWidget interface
 protected:
@@ -46,7 +43,6 @@ protected:
     void subscribe();
     void unsubscribe();
 
-
 private slots:
     void onNewFrameAvailable(const VideoFrame newFrame);
 
@@ -54,6 +50,7 @@ private:
     VideoSource* source;
     QOpenGLBuffer* pbo[2];
     QOpenGLShaderProgram* bgrProgramm;
+    QOpenGLShaderProgram* yuvProgramm;
     GLuint textureId;
     int pboAllocSize;
     QSize res;