private static Task <RTCPeerConnection> CreatePeerConnection(IVideoSource videoSource, IVideoSink videoSink)
{
var pc = new RTCPeerConnection(null);
MediaStreamTrack videoTrack = new MediaStreamTrack(videoSink.GetVideoSinkFormats(), MediaStreamStatusEnum.SendRecv);
pc.addTrack(videoTrack);
videoSource.OnVideoSourceEncodedSample += pc.SendVideo;
pc.OnVideoFrameReceived += videoSink.GotVideoFrame;
pc.OnVideoFormatsNegotiated += (formats) =>
{
videoSink.SetVideoSinkFormat(formats.First());
videoSource.SetVideoSourceFormat(formats.First());
};
pc.OnTimeout += (mediaType) => logger.LogDebug($"Timeout on media {mediaType}.");
pc.oniceconnectionstatechange += (state) => logger.LogDebug($"ICE connection state changed to {state}.");
pc.onconnectionstatechange += async(state) =>
{
logger.LogDebug($"Peer connection connected changed to {state}.");
if (state == RTCPeerConnectionState.closed || state == RTCPeerConnectionState.failed)
{
await videoSource.CloseVideo().ConfigureAwait(false);
}
};
return(Task.FromResult(pc));
}
public Task CloseVideo()
{
if (!_isClosed)
{
_isClosed = true;
_externalSource?.CloseVideo();
}
return(Task.CompletedTask);
}
static private Task <RTCPeerConnection> CreatePeerConnection()
{
RTCConfiguration config = new RTCConfiguration
{
iceServers = new List <RTCIceServer> {
new RTCIceServer {
urls = STUN_URL
}
}
};
PeerConnection = new RTCPeerConnection(config);
switch (VideoSourceType)
{
case VIDEO_SOURCE.FILE_OR_STREAM:
// Do we use same file for Audio ?
if ((AudioSourceType == AUDIO_SOURCE.FILE_OR_STREAM) && (AudioSourceFile == VideoSourceFile))
{
SIPSorceryMedia.FFmpeg.FFmpegFileSource fileSource = new SIPSorceryMedia.FFmpeg.FFmpegFileSource(VideoSourceFile, RepeatVideoFile, new AudioEncoder(), true);
fileSource.OnEndOfFile += () => PeerConnection.Close("source eof");
videoSource = fileSource as IVideoSource;
audioSource = fileSource as IAudioSource;
}
else
{
SIPSorceryMedia.FFmpeg.FFmpegFileSource fileSource = new SIPSorceryMedia.FFmpeg.FFmpegFileSource(VideoSourceFile, RepeatVideoFile, new AudioEncoder(), true);
fileSource.OnEndOfFile += () => PeerConnection.Close("source eof");
videoSource = fileSource as IVideoSource;
}
break;
case VIDEO_SOURCE.CAMERA:
List <SIPSorceryMedia.FFmpeg.Camera>?cameras = SIPSorceryMedia.FFmpeg.FFmpegCameraManager.GetCameraDevices();
SIPSorceryMedia.FFmpeg.Camera?camera = null;
if (cameras?.Count > 0)
{
// Get last one
camera = cameras.Last();
}
if (camera != null)
{
videoSource = new SIPSorceryMedia.FFmpeg.FFmpegCameraSource(camera.Path);
}
else
{
throw new NotSupportedException($"Cannot find adequate camera ...");
}
break;
case VIDEO_SOURCE.SCREEN:
List <SIPSorceryMedia.FFmpeg.Monitor>?monitors = SIPSorceryMedia.FFmpeg.FFmpegMonitorManager.GetMonitorDevices();
SIPSorceryMedia.FFmpeg.Monitor? primaryMonitor = null;
if (monitors?.Count > 0)
{
foreach (SIPSorceryMedia.FFmpeg.Monitor monitor in monitors)
{
if (monitor.Primary)
{
primaryMonitor = monitor;
break;
}
}
if (primaryMonitor == null)
{
primaryMonitor = monitors[0];
}
}
if (primaryMonitor != null)
{
videoSource = new SIPSorceryMedia.FFmpeg.FFmpegScreenSource(primaryMonitor.Path, primaryMonitor.Rect, 10);
}
else
{
throw new NotSupportedException($"Cannot find adequate monitor ...");
}
break;
}
if (audioSource == null)
{
switch (AudioSourceType)
{
case AUDIO_SOURCE.FILE_OR_STREAM:
SIPSorceryMedia.FFmpeg.FFmpegFileSource fileSource = new SIPSorceryMedia.FFmpeg.FFmpegFileSource(AudioSourceFile, RepeatAudioFile, new AudioEncoder(), false);
fileSource.OnEndOfFile += () => PeerConnection.Close("source eof");
audioSource = fileSource as IAudioSource;
break;
case AUDIO_SOURCE.MICROPHONE:
audioSource = new SIPSorceryMedia.FFmpeg.FFmpegMicrophoneSource(MicrophoneDevicePath, new AudioEncoder());
break;
}
}
if (videoSource != null)
{
videoSource.RestrictFormats(x => x.Codec == VideoCodec);
MediaStreamTrack videoTrack = new MediaStreamTrack(videoSource.GetVideoSourceFormats(), MediaStreamStatusEnum.SendRecv);
PeerConnection.addTrack(videoTrack);
videoSource.OnVideoSourceEncodedSample += PeerConnection.SendVideo;
PeerConnection.OnVideoFormatsNegotiated += (videoFormats) => videoSource.SetVideoSourceFormat(videoFormats.First());
}
if (audioSource != null)
{
audioSource.RestrictFormats(x => x.Codec == AudioCodec);
MediaStreamTrack audioTrack = new MediaStreamTrack(audioSource.GetAudioSourceFormats(), MediaStreamStatusEnum.SendRecv);
PeerConnection.addTrack(audioTrack);
audioSource.OnAudioSourceEncodedSample += AudioSource_OnAudioSourceEncodedSample;
PeerConnection.OnAudioFormatsNegotiated += (audioFormats) => audioSource.SetAudioSourceFormat(audioFormats.First());
}
PeerConnection.onconnectionstatechange += async(state) =>
{
logger.LogDebug($"Peer connection state change to {state}.");
if (state == RTCPeerConnectionState.failed)
{
PeerConnection.Close("ice disconnection");
}
else if (state == RTCPeerConnectionState.closed)
{
if (videoSource != null)
{
await videoSource.CloseVideo();
}
if (audioSink != null)
{
await audioSink.CloseAudioSink();
}
if (audioSource != null)
{
await audioSource.CloseAudio();
}
}
else if (state == RTCPeerConnectionState.connected)
{
if (videoSource != null)
{
await videoSource.StartVideo();
}
if (audioSink != null)
{
await audioSink.StartAudioSink();
}
if (audioSource != null)
{
await audioSource.StartAudio();
}
}
};
// Diagnostics.
//pc.OnReceiveReport += (re, media, rr) => logger.LogDebug($"RTCP Receive for {media} from {re}\n{rr.GetDebugSummary()}");
//pc.OnSendReport += (media, sr) => logger.LogDebug($"RTCP Send for {media}\n{sr.GetDebugSummary()}");
//pc.GetRtpChannel().OnStunMessageReceived += (msg, ep, isRelay) => logger.LogDebug($"STUN {msg.Header.MessageType} received from {ep}.");
PeerConnection.oniceconnectionstatechange += (state) => logger.LogDebug($"ICE connection state change to {state}.");
return(Task.FromResult(PeerConnection));
}