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qTox/coreav.cpp

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/*
Copyright (C) 2013 by Maxim Biro <nurupo.contributions@gmail.com>
This file is part of Tox Qt GUI.
This program is free 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.
*/
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#include "core.h"
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#include "widget/camera.h"
#include <QDebug>
#include <QTimer>
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ToxCall Core::calls[TOXAV_MAX_CALLS];
const int Core::videobufsize{TOXAV_MAX_VIDEO_WIDTH * TOXAV_MAX_VIDEO_HEIGHT * 4};
uint8_t* Core::videobuf;
int Core::videoBusyness;
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ALCdevice* Core::alOutDev, *Core::alInDev;
ALCcontext* Core::alContext;
ALuint Core::alMainSource;
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void Core::prepareCall(int friendId, int callId, ToxAv* toxav, bool videoEnabled)
{
qDebug() << QString("Core: preparing call %1").arg(callId);
calls[callId].callId = callId;
calls[callId].friendId = friendId;
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calls[callId].muteMic = false;
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// the following three lines are also now redundant from startCall, but are
// necessary there for outbound and here for inbound
calls[callId].codecSettings = av_DefaultSettings;
calls[callId].codecSettings.max_video_width = TOXAV_MAX_VIDEO_WIDTH;
calls[callId].codecSettings.max_video_height = TOXAV_MAX_VIDEO_HEIGHT;
calls[callId].videoEnabled = videoEnabled;
toxav_prepare_transmission(toxav, callId, av_jbufdc, av_VADd, videoEnabled);
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// Audio
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alGenSources(1, &calls[callId].alSource);
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alcCaptureStart(alInDev);
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// Go
calls[callId].active = true;
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calls[callId].sendAudioTimer->setInterval(5);
calls[callId].sendAudioTimer->setSingleShot(true);
connect(calls[callId].sendAudioTimer, &QTimer::timeout, [=](){sendCallAudio(callId,toxav);});
calls[callId].sendAudioTimer->start();
calls[callId].sendVideoTimer->setInterval(50);
calls[callId].sendVideoTimer->setSingleShot(true);
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if (calls[callId].videoEnabled)
{
calls[callId].sendVideoTimer->start();
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Camera::getInstance()->suscribe();
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}
}
void Core::onAvMediaChange(void* toxav, int32_t callId, void* core)
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{
ToxAvCSettings settings;
toxav_get_peer_csettings((ToxAv*)toxav, callId, 0, &settings);
int friendId = toxav_get_peer_id((ToxAv*)toxav, callId, 0);
qWarning() << "Core: Received media change from friend "<<friendId;
if (settings.call_type == TypeAudio)
{
calls[callId].videoEnabled = false;
calls[callId].sendVideoTimer->stop();
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Camera::getInstance()->unsuscribe();
emit ((Core*)core)->avMediaChange(friendId, callId, false);
}
else
{
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Camera::getInstance()->suscribe();
calls[callId].videoEnabled = true;
calls[callId].sendVideoTimer->start();
emit ((Core*)core)->avMediaChange(friendId, callId, true);
}
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}
void Core::answerCall(int callId)
{
int friendId = toxav_get_peer_id(toxav, callId, 0);
if (friendId < 0)
{
qWarning() << "Core: Received invalid AV answer peer ID";
return;
}
ToxAvCSettings* transSettings = new ToxAvCSettings;
int err = toxav_get_peer_csettings(toxav, callId, 0, transSettings);
if (err != ErrorNone)
{
qWarning() << "Core::answerCall: error getting call settings";
delete transSettings;
return;
}
if (transSettings->call_type == TypeVideo)
{
qDebug() << QString("Core: answering call %1 with video").arg(callId);
toxav_answer(toxav, callId, transSettings);
}
else
{
qDebug() << QString("Core: answering call %1 without video").arg(callId);
toxav_answer(toxav, callId, transSettings);
}
delete transSettings;
}
void Core::hangupCall(int callId)
{
qDebug() << QString("Core: hanging up call %1").arg(callId);
calls[callId].active = false;
toxav_hangup(toxav, callId);
}
void Core::startCall(int friendId, bool video)
{
int callId;
ToxAvCSettings cSettings = av_DefaultSettings;
cSettings.max_video_width = TOXAV_MAX_VIDEO_WIDTH;
cSettings.max_video_height = TOXAV_MAX_VIDEO_HEIGHT;
if (video)
{
qDebug() << QString("Core: Starting new call with %1 with video").arg(friendId);
cSettings.call_type = TypeVideo;
toxav_call(toxav, &callId, friendId, &cSettings, TOXAV_RINGING_TIME);
calls[callId].videoEnabled=true;
}
else
{
qDebug() << QString("Core: Starting new call with %1 without video").arg(friendId);
cSettings.call_type = TypeAudio;
toxav_call(toxav, &callId, friendId, &cSettings, TOXAV_RINGING_TIME);
calls[callId].videoEnabled=false;
}
}
void Core::cancelCall(int callId, int friendId)
{
qDebug() << QString("Core: Cancelling call with %1").arg(friendId);
calls[callId].active = false;
toxav_cancel(toxav, callId, friendId, 0);
}
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void Core::cleanupCall(int callId)
{
qDebug() << QString("Core: cleaning up call %1").arg(callId);
calls[callId].active = false;
disconnect(calls[callId].sendAudioTimer,0,0,0);
calls[callId].sendAudioTimer->stop();
calls[callId].sendVideoTimer->stop();
if (calls[callId].videoEnabled)
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Camera::getInstance()->unsuscribe();
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alcCaptureStop(alInDev);
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}
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void Core::playCallAudio(ToxAv* toxav, int32_t callId, int16_t *data, int samples, void *user_data)
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{
Q_UNUSED(user_data);
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if (!calls[callId].active)
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return;
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ToxAvCSettings dest;
if(toxav_get_peer_csettings(toxav, callId, 0, &dest) == 0)
playAudioBuffer(callId, data, samples, dest.audio_channels, dest.audio_sample_rate);
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}
void Core::sendCallAudio(int callId, ToxAv* toxav)
{
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if (!calls[callId].active)
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return;
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if (calls[callId].muteMic)
{
calls[callId].sendAudioTimer->start();
return;
}
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int framesize = (calls[callId].codecSettings.audio_frame_duration * calls[callId].codecSettings.audio_sample_rate) / 1000;
uint8_t buf[framesize*2], dest[framesize*2];
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bool frame = false;
ALint samples;
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alcGetIntegerv(alInDev, ALC_CAPTURE_SAMPLES, sizeof(samples), &samples);
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if(samples >= framesize)
{
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alcCaptureSamples(alInDev, buf, framesize);
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frame = 1;
}
if(frame)
{
int r;
if((r = toxav_prepare_audio_frame(toxav, callId, dest, framesize*2, (int16_t*)buf, framesize)) < 0)
{
qDebug() << "Core: toxav_prepare_audio_frame error";
calls[callId].sendAudioTimer->start();
return;
}
if((r = toxav_send_audio(toxav, callId, dest, r)) < 0)
qDebug() << "Core: toxav_send_audio error";
}
calls[callId].sendAudioTimer->start();
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}
void Core::playCallVideo(ToxAv*, int32_t callId, vpx_image_t* img, void *user_data)
{
Q_UNUSED(user_data);
if (!calls[callId].active || !calls[callId].videoEnabled)
return;
if (videoBusyness >= 1)
qWarning() << "Core: playCallVideo: Busy, dropping current frame";
else
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emit Core::getInstance()->videoFrameReceived(img);
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vpx_img_free(img);
}
void Core::sendCallVideo(int callId)
{
if (!calls[callId].active || !calls[callId].videoEnabled)
return;
vpx_image frame = camera->getLastVPXImage();
if (frame.w && frame.h)
{
int result;
if((result = toxav_prepare_video_frame(toxav, callId, videobuf, videobufsize, &frame)) < 0)
{
qDebug() << QString("Core: toxav_prepare_video_frame: error %1").arg(result);
vpx_img_free(&frame);
calls[callId].sendVideoTimer->start();
return;
}
if((result = toxav_send_video(toxav, callId, (uint8_t*)videobuf, result)) < 0)
qDebug() << QString("Core: toxav_send_video error: %1").arg(result);
vpx_img_free(&frame);
}
else
{
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qDebug("Core::sendCallVideo: Invalid frame (bad camera ?)");
}
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calls[callId].sendVideoTimer->start();
}
void Core::increaseVideoBusyness()
{
videoBusyness++;
}
void Core::decreaseVideoBusyness()
{
videoBusyness--;
}
void Core::micMuteToggle(int callId)
{
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calls[callId].muteMic = !calls[callId].muteMic;
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}
void Core::onAvCancel(void* _toxav, int32_t callId, void* core)
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{
ToxAv* toxav = static_cast<ToxAv*>(_toxav);
int friendId = toxav_get_peer_id(toxav, callId, 0);
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if (friendId < 0)
{
qWarning() << "Core: Received invalid AV cancel";
return;
}
qDebug() << QString("Core: AV cancel from %1").arg(friendId);
calls[callId].active = false;
emit static_cast<Core*>(core)->avCancel(friendId, callId);
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}
void Core::onAvReject(void*, int32_t, void*)
{
qDebug() << "Core: AV reject";
}
void Core::onAvEnd(void* _toxav, int32_t call_index, void* core)
{
ToxAv* toxav = static_cast<ToxAv*>(_toxav);
int friendId = toxav_get_peer_id(toxav, call_index, 0);
if (friendId < 0)
{
qWarning() << "Core: Received invalid AV end";
return;
}
qDebug() << QString("Core: AV end from %1").arg(friendId);
cleanupCall(call_index);
emit static_cast<Core*>(core)->avEnd(friendId, call_index);
}
void Core::onAvRinging(void* _toxav, int32_t call_index, void* core)
{
ToxAv* toxav = static_cast<ToxAv*>(_toxav);
int friendId = toxav_get_peer_id(toxav, call_index, 0);
if (friendId < 0)
{
qWarning() << "Core: Received invalid AV ringing";
return;
}
if (calls[call_index].videoEnabled)
{
qDebug() << QString("Core: AV ringing with %1 with video").arg(friendId);
emit static_cast<Core*>(core)->avRinging(friendId, call_index, true);
}
else
{
qDebug() << QString("Core: AV ringing with %1 without video").arg(friendId);
emit static_cast<Core*>(core)->avRinging(friendId, call_index, false);
}
}
void Core::onAvStarting(void* _toxav, int32_t call_index, void* core)
{
ToxAv* toxav = static_cast<ToxAv*>(_toxav);
int friendId = toxav_get_peer_id(toxav, call_index, 0);
if (friendId < 0)
{
qWarning() << "Core: Received invalid AV starting";
return;
}
ToxAvCSettings* transSettings = new ToxAvCSettings;
int err = toxav_get_peer_csettings(toxav, call_index, 0, transSettings);
if (err != ErrorNone)
{
qWarning() << "Core::onAvStarting: error getting call type";
delete transSettings;
return;
}
if (transSettings->call_type == TypeVideo)
{
qDebug() << QString("Core: AV starting from %1 with video").arg(friendId);
prepareCall(friendId, call_index, toxav, true);
emit static_cast<Core*>(core)->avStarting(friendId, call_index, true);
}
else
{
qDebug() << QString("Core: AV starting from %1 without video").arg(friendId);
prepareCall(friendId, call_index, toxav, false);
emit static_cast<Core*>(core)->avStarting(friendId, call_index, false);
}
delete transSettings;
}
void Core::onAvEnding(void* _toxav, int32_t call_index, void* core)
{
ToxAv* toxav = static_cast<ToxAv*>(_toxav);
int friendId = toxav_get_peer_id(toxav, call_index, 0);
if (friendId < 0)
{
qWarning() << "Core: Received invalid AV ending";
return;
}
qDebug() << QString("Core: AV ending from %1").arg(friendId);
cleanupCall(call_index);
emit static_cast<Core*>(core)->avEnding(friendId, call_index);
}
void Core::onAvRequestTimeout(void* _toxav, int32_t call_index, void* core)
{
ToxAv* toxav = static_cast<ToxAv*>(_toxav);
int friendId = toxav_get_peer_id(toxav, call_index, 0);
if (friendId < 0)
{
qWarning() << "Core: Received invalid AV request timeout";
return;
}
qDebug() << QString("Core: AV request timeout with %1").arg(friendId);
cleanupCall(call_index);
emit static_cast<Core*>(core)->avRequestTimeout(friendId, call_index);
}
void Core::onAvPeerTimeout(void* _toxav, int32_t call_index, void* core)
{
ToxAv* toxav = static_cast<ToxAv*>(_toxav);
int friendId = toxav_get_peer_id(toxav, call_index, 0);
if (friendId < 0)
{
qWarning() << "Core: Received invalid AV peer timeout";
return;
}
qDebug() << QString("Core: AV peer timeout with %1").arg(friendId);
cleanupCall(call_index);
emit static_cast<Core*>(core)->avPeerTimeout(friendId, call_index);
}
void Core::onAvInvite(void* _toxav, int32_t call_index, void* core)
{
ToxAv* toxav = static_cast<ToxAv*>(_toxav);
int friendId = toxav_get_peer_id(toxav, call_index, 0);
if (friendId < 0)
{
qWarning() << "Core: Received invalid AV invite";
return;
}
ToxAvCSettings* transSettings = new ToxAvCSettings;
int err = toxav_get_peer_csettings(toxav, call_index, 0, transSettings);
if (err != ErrorNone)
{
qWarning() << "Core::onAvInvite: error getting call type";
delete transSettings;
return;
}
if (transSettings->call_type == TypeVideo)
{
qDebug() << QString("Core: AV invite from %1 with video").arg(friendId);
emit static_cast<Core*>(core)->avInvite(friendId, call_index, true);
}
else
{
qDebug() << QString("Core: AV invite from %1 without video").arg(friendId);
emit static_cast<Core*>(core)->avInvite(friendId, call_index, false);
}
delete transSettings;
}
void Core::onAvStart(void* _toxav, int32_t call_index, void* core)
{
ToxAv* toxav = static_cast<ToxAv*>(_toxav);
int friendId = toxav_get_peer_id(toxav, call_index, 0);
if (friendId < 0)
{
qWarning() << "Core: Received invalid AV start";
return;
}
ToxAvCSettings* transSettings = new ToxAvCSettings;
int err = toxav_get_peer_csettings(toxav, call_index, 0, transSettings);
if (err != ErrorNone)
{
qWarning() << "Core::onAvStart: error getting call type";
delete transSettings;
return;
}
if (transSettings->call_type == TypeVideo)
{
qDebug() << QString("Core: AV start from %1 with video").arg(friendId);
prepareCall(friendId, call_index, toxav, true);
emit static_cast<Core*>(core)->avStart(friendId, call_index, true);
}
else
{
qDebug() << QString("Core: AV start from %1 without video").arg(friendId);
prepareCall(friendId, call_index, toxav, false);
emit static_cast<Core*>(core)->avStart(friendId, call_index, false);
}
delete transSettings;
}
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// This function's logic was shamelessly stolen from uTox
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void Core::playAudioBuffer(int callId, int16_t *data, int samples, unsigned channels, int sampleRate)
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{
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if(!channels || channels > 2)
{
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qWarning() << "Core::playAudioBuffer: trying to play on "<<channels<<" channels! Giving up.";
return;
}
ALuint bufid;
ALint processed, queued;
alGetSourcei(calls[callId].alSource, AL_BUFFERS_PROCESSED, &processed);
alGetSourcei(calls[callId].alSource, AL_BUFFERS_QUEUED, &queued);
alSourcei(calls[callId].alSource, AL_LOOPING, AL_FALSE);
if(processed)
{
ALuint bufids[processed];
alSourceUnqueueBuffers(calls[callId].alSource, processed, bufids);
alDeleteBuffers(processed - 1, bufids + 1);
bufid = bufids[0];
}
else if(queued < 16)
{
alGenBuffers(1, &bufid);
}
else
{
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qDebug() << "Core: Dropped audio frame";
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return;
}
alBufferData(bufid, (channels == 1) ? AL_FORMAT_MONO16 : AL_FORMAT_STEREO16, data,
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samples * 2 * channels, sampleRate);
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alSourceQueueBuffers(calls[callId].alSource, 1, &bufid);
ALint state;
alGetSourcei(calls[callId].alSource, AL_SOURCE_STATE, &state);
if(state != AL_PLAYING)
{
alSourcePlay(calls[callId].alSource);
qDebug() << "Core: Starting audio source of call " << callId;
}
}