/// <summary>
/// Callback handler for the lowOnFrames event that the vbss frame player will raise when there are no more frames to stream.
/// The behavior is to enqueue more frames.
/// </summary>
/// <param name="sender">The vbss frame player.</param>
/// <param name="e">LowOnframes eventArgs.</param>
private void OnVbssPlayerLowOnFrames(object sender, LowOnFramesEventArgs e)
{
if (this.shutdown != 1)
{
this.logger.Info($"Low on frames event raised for the vbss player, remaining lenght is {e.RemainingMediaLengthInMS} ms");
// Create the video buffers
this.vbssMediaBuffers = Utilities.CreateVideoMediaBuffers(DateTime.Now.Ticks, this.vbssKnownSupportedFormats, true, this.logger);
this.vbssFramePlayer?.EnqueueBuffersAsync(new List <AudioMediaBuffer>(), this.vbssMediaBuffers).ForgetAndLogExceptionAsync(this.logger);
this.logger.Info("enqueued more frames in the vbssFramePlayer");
}
}
/// <summary>
/// Event to signal the player is low on frames.
/// </summary>
/// <param name="sender">The video socket.</param>
/// <param name="e">Event containing media type and length of media remaining.</param>
private void OnAudioVideoFramePlayerLowOnFrames(object sender, LowOnFramesEventArgs e)
{
if (this.shutdown != 1)
{
this.logger.Info($"Low on frames event raised for {e.MediaType}, remaining lenght is {e.RemainingMediaLengthInMS} ms");
// here we want to keep the AV creation in sync so we take as reference audio.
if (e.MediaType == MediaType.Audio)
{
// use the past tick as reference to avoid av out of sync
this.CreateAVBuffers(this.mediaTick, replayed: true);
this.audioVideoFramePlayer?.EnqueueBuffersAsync(this.audioMediaBuffers, this.videoMediaBuffers).ForgetAndLogExceptionAsync(this.logger, "Failed to enqueue AV buffers");
this.logger.Info($"Low on audio event raised, enqueued {this.audioMediaBuffers.Count} buffers last audio tick {this.audioTick} and mediatick {this.mediaTick}");
}
this.logger.Info("enqueued more frames in the audioVideoPlayer");
}
}
private void OnLowOnFrames(object sender, LowOnFramesEventArgs e)
{
if (Interlocked.CompareExchange(ref _disposed, 1, 1) == 1)
{
return;
}
Log.Info(
new CallerInfo(),
LogContext.Media,
"Low in frames event raised]");
_videoMediaBuffers = _downloadManager.GetVideoMediaBuffers(_mediaTick);
_audioMediaBuffers = _downloadManager.GetAudioMediaBuffers(_mediaTick);
_mediaTick = Math.Max(_audioMediaBuffers.Last().Timestamp, _videoMediaBuffers.Last().Timestamp);
_audioVideoFramePlayer.EnqueueBuffersAsync(_audioMediaBuffers, _videoMediaBuffers).ForgetAndLogException();
Log.Info(
new CallerInfo(),
LogContext.Media,
"enqueued more frames in frames event raised");
}
