void processVideoFrame()
{
bool skipVideoFrame = false;
restartvideo:
double actualDelay = 0.04;
Rectangle scaledVideoRec = ImageUtils.stretchRectangle(
new Rectangle(0, 0, videoDecoder.Width, videoDecoder.Height),
videoRender.Canvas);
Rectangle canvas = ImageUtils.centerRectangle(videoRender.Canvas,
scaledVideoRec);
// grab a decoded frame, returns false if the queue is stopped
VideoFrame videoFrame = videoDecoder.FrameQueue.getDecodedVideoFrame();
if (VideoState == VideoState.CLOSED && videoFrame == null)
{
return;
}
else if (VideoState == VideoState.PLAYING)
{
videoPts = videoFrame.Pts;
videoPtsDrift = videoFrame.Pts + HRTimer.getTimestamp();
if (skipVideoFrame == false)
{
videoRender.display(videoFrame, canvas, Color.Black, VideoRender.RenderMode.NORMAL);
videoDebug.VideoFrames = videoDebug.VideoFrames + 1;
}
actualDelay = synchronizeVideo(videoPts);
}
else if (VideoState == VideoState.PAUSED)
{
videoRender.display(null, canvas, Color.Black, VideoRender.RenderMode.PAUSED);
}
// do not update ui elements on main thread inside videoStateLock
// or we can get a deadlock
videoDebug.update();
updateUI();
if (actualDelay < 0.010)
{
// delay is too small skip next frame
skipVideoFrame = true;
videoDebug.NrVideoFramesDropped = videoDebug.NrVideoFramesDropped + 1;
goto restartvideo;
}
// start timer with delay for next frame
videoRefreshTimer.Interval = (int)(actualDelay * 1000 + 0.5);
videoRefreshTimer.start();
}
void videoRefreshTimer_Tick(Object sender, EventArgs e)
{
bool skipVideoFrame = false;
restartvideo:
double actualDelay = 0.04;
// grab a decoded frame, returns false if the queue is stopped
VideoLib.VideoFrame videoFrame = videoDecoder.FrameQueue.getDecodedVideoFrame();
if (VideoState == VideoState.CLOSED && videoFrame == null)
{
return;
}
else if (VideoState == VideoState.PLAYING)
{
videoPts = videoFrame.Pts;
videoPtsDrift = videoFrame.Pts + HRTimer.getTimestamp();
if (skipVideoFrame == false && displayVideoFrameCallback != null)
{
displayVideoFrameCallback(videoFrame);
}
actualDelay = synchronizeVideo(videoPts);
}
else if (VideoState == VideoState.PAUSED)
{
//videoRender.display(null, canvas, Color.Black, VideoRender.RenderMode.PAUSED);
}
updateObservableVariables();
if (actualDelay < 0.010)
{
// delay is too small skip next frame
skipVideoFrame = true;
//videoDebug.NrVideoFramesDropped = videoDebug.NrVideoFramesDropped + 1;
goto restartvideo;
}
// start timer with delay for next frame
videoRefreshTimer.Interval = (int)(actualDelay * 1000 + 0.5);
videoRefreshTimer.start();
}
void processAudioFrame()
{
restartaudio:
AudioFrame audioFrame = videoDecoder.FrameQueue.getDecodedAudioFrame();
if (audioFrame == null)
{
return;
}
videoDebug.AudioFrames = videoDebug.AudioFrames + 1;
videoDebug.AudioFrameLength = audioFrame.Length;
// if the audio is lagging behind too much, skip the buffer completely
double diff = getVideoClock() - audioFrame.Pts;
if (diff > 0.2 && diff < 3 && syncMode == SyncMode.AUDIO_SYNCS_TO_VIDEO)
{
log.Warn("dropping audio buffer, lagging behind: " + (getVideoClock() - audioFrame.Pts).ToString() + " seconds");
goto restartaudio;
}
//adjustAudioSamplesPerSecond(audioFrame);
adjustAudioLength(audioFrame);
audioPlayer.write(audioFrame);
int frameLength = audioFrame.Length;
double actualDelay = synchronizeAudio(frameLength);
if (actualDelay < 0)
{
// delay too small, play next frame as quickly as possible
videoDebug.NrAudioFramesLaggingBehind = videoDebug.NrAudioFramesLaggingBehind + 1;
goto restartaudio;
}
// start timer with delay for next frame
audioRefreshTimer.Interval = (int)(actualDelay * 1000 + 0.5);
audioRefreshTimer.start();
}
void audioRefreshTimer_Tick(Object sender, EventArgs e)
{
restartaudio:
double actualDelay = 0.04;
if (!videoDecoder.HasVideo)
{
updateObservableVariables();
}
// returns null when framequeue is paused or closed
VideoLib.AudioFrame audioFrame = videoDecoder.FrameQueue.getDecodedAudioFrame();
if (audioFrame == null)
{
// stop audio if playing
audioPlayer.stop();
if (VideoState == VideoState.CLOSED)
{
audioPlayer.flush();
return;
}
// when paused spin idle
}
else
{
if (audioPlayer.Status == SharpDX.DirectSound.BufferStatus.None)
{
// reset audio frame timer before (re)starting playing
audioFrameTimer = videoFrameTimer = HRTimer.getTimestamp();
}
audioPts = audioFrame.Pts;
audioDts = audioFrame.Dts;
// if the audio is lagging behind too much, skip the buffer completely
double diff = getVideoClock() - audioFrame.Pts;
if (diff > 0.2 && diff < 3 && syncMode == SyncMode.AUDIO_SYNCS_TO_VIDEO)
{
//log.Warn("dropping audio buffer, lagging behind: " + (getVideoClock() - audioFrame.Pts).ToString() + " seconds");
goto restartaudio;
}
//adjustAudioSamplesPerSecond(audioFrame);
adjustAudioLength(audioFrame);
audioPlayer.play(audioFrame);
int frameLength = audioFrame.Length;
actualDelay = synchronizeAudio(frameLength);
if (actualDelay < 0)
{
// delay too small, play next frame as quickly as possible
goto restartaudio;
}
}
// start timer with delay for next frame
audioRefreshTimer.Interval = (int)(actualDelay * 1000 + 0.5);
audioRefreshTimer.start();
}
void videoRefreshTimer_Tick(Object sender, EventArgs e)
{
bool skipVideoFrame = false;
restartvideo:
double actualDelay = 0.04;
// grab a decoded frame, returns null if the queue is paused or closed
VideoFrame videoFrame = videoDecoder.FrameQueue.getDecodedVideoFrame();
if (videoFrame == null)
{
if (VideoState == VideoState.CLOSED)
{
videoRender.display(null, Color.Black, RenderMode.CLEAR_SCREEN);
videoRender.releaseResources();
return;
}
videoRender.display(null, Color.Black, RenderMode.PAUSED);
}
else
{
if (videoRender.RenderMode == RenderMode.PAUSED)
{
// reset videoFrameTimer before (re)starting rendering
audioFrameTimer = videoFrameTimer = HRTimer.getTimestamp();
}
videoPts = videoFrame.Pts;
videoDts = videoFrame.Dts;
videoPtsDrift = videoFrame.Pts + HRTimer.getTimestamp();
if (skipVideoFrame == false)
{
videoRender.display(videoFrame, Color.Black, RenderMode.NORMAL);
}
actualDelay = synchronizeVideo(videoPts);
NrFramesRendered++;
framePts = videoFrame.FramePts;
//frameDts = videoFrame.FrameDts;
isKeyFrame = videoFrame.IsKey;
}
updateObservableVariables();
if (actualDelay < 0.010)
{
// delay is too small skip next frame
skipVideoFrame = true;
NrFramesDropped++;
goto restartvideo;
}
// start timer with delay for next frame
videoRefreshTimer.Interval = (int)(actualDelay * 1000 + 0.5);
videoRefreshTimer.start();
}
