void Movie::pause(void)
{
if (m_status == Playing)
{
// Prevent audio from being late compared to video
// (audio usually gets a bit later each time you pause and resume
// the movie playback, thus fix the video timing according
// to the audio's one)
// NB: Calling Pause()/Play() is the only way to resynchronize
// audio and video when audio gets late for now.
if (hasAudioTrack())
{
m_progressAtPause = m_audio->getPlayingOffset();
//std::cout << "synch according to audio track=" << m_progressAtPause << std::endl;
}
else
{
//std::cout << "synch according to progrAtPse=" << m_progressAtPause << " + elapsdTme=" << m_overallTimer.GetElapsedTime() << std::endl;
m_progressAtPause += m_overallTimer.getElapsedTime();
}
m_status = Paused;
IFAUDIO(m_audio->pause());
IFVIDEO(m_video->pause());
}
}
void Movie::starvation(void)
{
bool audioStarvation = true;
bool videoStarvation = true;
IFAUDIO(audioStarvation = m_audio->isStarving());
IFVIDEO(videoStarvation = m_video->isStarving());
// No mode audio or video data to read
if (audioStarvation && videoStarvation)
{
*m_shouldStopCond = 1;
}
}
void Movie::close(void)
{
IFVIDEO(m_video->close());
IFAUDIO(m_audio->close());
if (m_avFormatCtx)
avformat_close_input(&m_avFormatCtx);
m_hasAudio = false;
m_hasVideo = false;
m_eofReached = false;
m_status = Stopped;
m_duration = sf::Time::Zero;
m_progressAtPause = sf::Time::Zero;
}
void Movie::internalStop(bool calledFromWatchThread)
{
// prevent Stop() from being executed while already stopping from another thread
sf::Lock l(m_stopMutex);
if (m_status != Stopped)
{
m_status = Stopped;
IFAUDIO(m_audio->stop());
IFVIDEO(m_video->stop());
m_progressAtPause = sf::Time::Zero;
setEofReached(false);
m_shouldStopCond->invalidate();
if (!calledFromWatchThread)
m_watchThread.wait();
}
}
void Movie::play(void)
{
if (m_status != Playing)
{
m_overallTimer.restart();
IFAUDIO(m_audio->play());
IFVIDEO(m_video->play());
// Don't restart watch thread if we're resuming
if (m_status != Paused)
{
*m_shouldStopCond = 0;
m_shouldStopCond->restore();
m_watchThread.launch();
}
m_status = Playing;
}
}
void Movie::play(void)
{
if (m_status != Playing)
{
if (m_hasAudio)
{
sf::Time startOffset = m_audio->getPlayingOffset();
sf::Clock timer;
m_audio->play();
timer.restart();
while (startOffset == m_audio->getPlayingOffset() && timer.getElapsedTime() < sf::seconds(5))
sf::sleep(sf::milliseconds(1));
// Note: this is a workaround for SFML issue #201
// Audio initialization may silently fail and audio won't start playing
if (timer.getElapsedTime() >= sf::seconds(5))
std::cerr << "*** warning: Movie::play() - no audio progress for 5 sec, giving up on syncing" << std::endl;
m_progressAtPause = m_audio->getPlayingOffset();
}
m_overallTimer.restart();
IFVIDEO(m_video->play());
if (usesDebugMessages())
printWithTime("did start movie timer");
// Don't restart watch thread if we're resuming
if (m_status != Paused)
{
*m_shouldStopCond = 0;
m_shouldStopCond->restore();
m_watchThread.launch();
}
m_status = Playing;
}
}
