void AVPlayer::setSpeed(qreal speed)
{
if (speed == mSpeed)
return;
mSpeed = speed;
//TODO: check clock type?
if (_audio && _audio->isAvailable()) {
qDebug("set speed %.2f", mSpeed);
_audio->setSpeed(mSpeed);
} else {
masterClock()->setSpeed(mSpeed);
}
emit speedChanged(mSpeed);
}
void AVPlayer::setupAudioThread()
{
if (aCodecCtx) {
qDebug("has audio");
if (!audio_dec) {
audio_dec = new AudioDecoder();
}
qDebug("setCodecContext");
audio_dec->setCodecContext(aCodecCtx);
//TODO: setAudioOutput() like vo
if (!_audio) {
qDebug("new audio output");
#if HAVE_OPENAL
_audio = new AOOpenAL();
#elif HAVE_PORTAUDIO
_audio = new AOPortAudio();
#endif
}
if (!_audio) {
masterClock()->setClockType(AVClock::ExternalClock);
return;
}
_audio->setSampleRate(aCodecCtx->sample_rate);
_audio->setChannels(aCodecCtx->channels);
if (!_audio->open()) {
//return; //audio not ready
}
if (!audio_thread) {
qDebug("new audio thread");
audio_thread = new AudioThread(this);
audio_thread->setClock(clock);
audio_thread->setDecoder(audio_dec);
audio_thread->setStatistics(&mStatistics);
qDebug("demux thread setAudioThread");
demuxer_thread->setAudioThread(audio_thread);
//reconnect if disconnected
}
setAudioOutput(_audio);
/*if has video, connect video's only to avoid emitting stopped() mulltiple times
*otherwise connect audio's. but if video exists previously and now is null.
*audio thread will not change. so connection should be here
*/
if (!vCodecCtx) {
disconnect(audio_thread, SIGNAL(finished()), this, SIGNAL(stopped()));
connect(audio_thread, SIGNAL(finished()), this, SIGNAL(stopped()), Qt::DirectConnection);
}
int queue_min = 0.61803*qMax<qreal>(24.0, mStatistics.video.fps);
int queue_max = int(1.61803*(qreal)queue_min); //about 1 second
audio_thread->packetQueue()->setThreshold(queue_min);
audio_thread->packetQueue()->setCapacity(queue_max);
} else {
//set 0 before delete because demux thread will use the address
//TODO: use avthread** ?
demuxer_thread->setAudioThread(0);
if (audio_thread) {
qDebug("release audio thread.");
delete audio_thread;
audio_thread = 0; //shared ptr?
}
if (audio_dec) {
delete audio_dec;
audio_dec = 0;
}
//DO NOT delete AVOutput. it is setted by user
}
}