/// <summary>
/// Internal free-threaded helper callback on track added, which enqueues the
/// <see cref="VideoSource.VideoStreamStopped"/> event to be fired from the main
/// Unity thread.
/// </summary>
private void TrackRemoved(WebRTC.PeerConnection.TrackKind trackKind)
{
if (trackKind == WebRTC.PeerConnection.TrackKind.Video)
{
// Enqueue invoking the unity event from the main Unity thread, so that listeners
// can directly access Unity objects from their handler function.
_mainThreadWorkQueue.Enqueue(() => VideoStreamStopped.Invoke());
}
}
/// <summary>
/// Callback when the Unity component is disabled. This is the proper way to disable the
/// video source and get it to stop video capture.
/// </summary>
protected void OnDisable()
{
var nativePeer = PeerConnection.Peer;
if ((nativePeer != null) && nativePeer.Initialized)
{
VideoStreamStopped.Invoke();
nativePeer.I420LocalVideoFrameReady -= I420LocalVideoFrameReady;
nativePeer.RemoveLocalVideoTrack();
FrameQueue.Clear();
}
}
/// <summary>
/// Stop the video track playback and remove the track from the peer connection.
/// </summary>
public void StopTrack()
{
if (Track != null)
{
var nativePeer = PeerConnection.Peer;
nativePeer.RemoveLocalVideoTrack(Track);
Track.Dispose();
Track = null;
VideoStreamStopped.Invoke();
}
if (Source != null)
{
Source.Dispose();
Source = null;
}
_frameQueue.Clear();
}
protected void NotifyVideoStreamStopped() => VideoStreamStopped?.Invoke();
