private static Task <RTCPeerConnection> CreatePeerConnection()
{
RTCConfiguration config = new RTCConfiguration
{
iceServers = new List <RTCIceServer> {
new RTCIceServer {
urls = STUN_URL
}
}
};
var pc = new RTCPeerConnection(config);
var testPatternSource = new VideoTestPatternSource();
var videoEncoderEndPoint = new VideoEncoderEndPoint();
var audioSource = new AudioExtrasSource(new AudioEncoder(), new AudioSourceOptions {
AudioSource = AudioSourcesEnum.Music
});
MediaStreamTrack videoTrack = new MediaStreamTrack(videoEncoderEndPoint.GetVideoSourceFormats(), MediaStreamStatusEnum.SendRecv);
pc.addTrack(videoTrack);
MediaStreamTrack audioTrack = new MediaStreamTrack(audioSource.GetAudioSourceFormats(), MediaStreamStatusEnum.SendRecv);
pc.addTrack(audioTrack);
testPatternSource.OnVideoSourceRawSample += videoEncoderEndPoint.ExternalVideoSourceRawSample;
videoEncoderEndPoint.OnVideoSourceEncodedSample += pc.SendVideo;
audioSource.OnAudioSourceEncodedSample += pc.SendAudio;
pc.OnVideoFormatsNegotiated += (formats) =>
videoEncoderEndPoint.SetVideoSourceFormat(formats.First());
pc.onconnectionstatechange += async(state) =>
{
logger.LogDebug($"Peer connection state change to {state}.");
if (state == RTCPeerConnectionState.connected)
{
await audioSource.StartAudio();
await testPatternSource.StartVideo();
}
else if (state == RTCPeerConnectionState.failed)
{
pc.Close("ice disconnection");
}
else if (state == RTCPeerConnectionState.closed)
{
await testPatternSource.CloseVideo();
await audioSource.CloseAudio();
}
};
// Diagnostics.
pc.OnReceiveReport += (re, media, rr) => logger.LogDebug($"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}.");
pc.oniceconnectionstatechange += (state) => logger.LogDebug($"ICE connection state change to {state}.");
return(Task.FromResult(pc));
}
static async Task Main()
{
Console.WriteLine("Janus Echo Test Demo");
AddConsoleLogger();
CancellationTokenSource cts = new CancellationTokenSource();
bool isFormActivated = false;
#region Set up a simple Windows Form with two picture boxes.
var form = new Form();
form.AutoSize = true;
form.BackgroundImageLayout = ImageLayout.Center;
var localVideoPicBox = new PictureBox
{
Size = new Size(VIDEO_FRAME_WIDTH, VIDEO_FRAME_HEIGHT),
Location = new Point(0, 0),
Visible = true
};
var remoteVideoPicBox = new PictureBox
{
Size = new Size(VIDEO_FRAME_WIDTH, VIDEO_FRAME_HEIGHT),
Location = new Point(0, VIDEO_FRAME_HEIGHT),
Visible = true
};
form.Controls.Add(localVideoPicBox);
form.Controls.Add(remoteVideoPicBox);
Application.EnableVisualStyles();
ThreadPool.QueueUserWorkItem(delegate { Application.Run(form); });
form.FormClosing += (sender, e) => isFormActivated = false;
form.Activated += (sender, e) => isFormActivated = true;
#endregion
Console.WriteLine("Creating peer connection.");
RTCPeerConnection pc = new RTCPeerConnection(null);
var videoSource = new VideoTestPatternSource(new VpxVideoEncoder());
var videoSink = new VideoEncoderEndPoint();
MediaStreamTrack videoTrack = new MediaStreamTrack(videoSink.GetVideoSourceFormats(), MediaStreamStatusEnum.SendRecv);
pc.addTrack(videoTrack);
pc.OnVideoFrameReceived += videoSink.GotVideoFrame;
videoSource.OnVideoSourceEncodedSample += pc.SendVideo;
pc.OnVideoFormatsNegotiated += (formats) =>
{
videoSink.SetVideoSourceFormat(formats.First());
videoSource.SetVideoSourceFormat(formats.First());
};
pc.OnTimeout += (mediaType) => Console.WriteLine($"Peer connection timeout on media {mediaType}.");
pc.oniceconnectionstatechange += (state) => Console.WriteLine($"ICE connection state changed to {state}.");
pc.onconnectionstatechange += async(state) =>
{
Console.WriteLine($"Peer connection connected changed to {state}.");
if (state == RTCPeerConnectionState.closed || state == RTCPeerConnectionState.failed)
{
await videoSource.CloseVideo().ConfigureAwait(false);
videoSource.Dispose();
}
};
#region Wire up the video source and sink to the picutre boxes.
videoSource.OnVideoSourceRawSample += (uint durationMilliseconds, int width, int height, byte[] sample, VideoPixelFormatsEnum pixelFormat) =>
{
if (isFormActivated)
{
form?.BeginInvoke(new Action(() =>
{
if (form.Handle != IntPtr.Zero)
{
unsafe
{
fixed(byte *s = sample)
{
var bmpImage = new Bitmap(width, height, width * 3, PixelFormat.Format24bppRgb, (IntPtr)s);
localVideoPicBox.Image = bmpImage;
}
}
}
}));
}
};
videoSink.OnVideoSinkDecodedSample += (byte[] bmp, uint width, uint height, int stride, VideoPixelFormatsEnum pixelFormat) =>
{
if (isFormActivated)
{
form.BeginInvoke(new Action(() =>
{
unsafe
{
fixed(byte *s = bmp)
{
Bitmap bmpImage = new Bitmap((int)width, (int)height, (int)(bmp.Length / height), PixelFormat.Format24bppRgb, (IntPtr)s);
remoteVideoPicBox.Image = bmpImage;
}
}
}));
}
};
#endregion
var offer = pc.CreateOffer(null);
await pc.setLocalDescription(new RTCSessionDescriptionInit { type = RTCSdpType.offer, sdp = offer.ToString() }).ConfigureAwait(false);
Console.WriteLine($"SDP Offer: {pc.localDescription.sdp}");
await videoSource.StartVideo().ConfigureAwait(false);
if (_useJanusRest)
{
JanusRestClient janusClient = new JanusRestClient(
JANUS_BASE_URI,
SIPSorcery.LogFactory.CreateLogger <JanusRestClient>(),
cts.Token);
//var serverInfo = await janusClient.GetServerInfo().ConfigureAwait(false);
//Console.WriteLine($"Name={serverInfo.name}.");
//Console.WriteLine($"Version={serverInfo.version}.");
janusClient.OnJanusEvent += async(resp) =>
{
if (resp.jsep != null)
{
Console.WriteLine($"get event jsep={resp.jsep.type}.");
Console.WriteLine($"SDP Answer: {resp.jsep.sdp}");
var result = pc.setRemoteDescription(new RTCSessionDescriptionInit {
type = RTCSdpType.answer, sdp = resp.jsep.sdp
});
Console.WriteLine($"SDP Answer: {pc.remoteDescription.sdp}");
if (result == SetDescriptionResultEnum.OK)
{
Console.WriteLine("Starting peer connection.");
await pc.Start().ConfigureAwait(false);
}
else
{
Console.WriteLine($"Error setting remote SDP description {result}.");
}
}
};
await janusClient.StartSession().ConfigureAwait(false);
await janusClient.StartEcho(offer.ToString()).ConfigureAwait(false);
}
else
{
//RestClient signalingClient = new RestClient($"{WEBRTC_SIGNALING_JANUS_URL}?duration=15");
RestClient signalingClient = new RestClient($"{WEBRTC_SIGNALING_JANUS_URL}");
var echoTestReq = new RestRequest(string.Empty, Method.POST, DataFormat.Json);
echoTestReq.AddJsonBody(pc.localDescription.sdp.ToString());
var echoTestResp = await signalingClient.ExecutePostAsync <string>(echoTestReq).ConfigureAwait(false);
if (echoTestResp.IsSuccessful)
{
var sdpAnswer = echoTestResp.Data;
Console.WriteLine($"SDP Answer: {sdpAnswer}");
var result = pc.setRemoteDescription(new RTCSessionDescriptionInit {
type = RTCSdpType.answer, sdp = sdpAnswer
});
Console.WriteLine($"SDP Answer: {pc.remoteDescription.sdp}");
if (result == SetDescriptionResultEnum.OK)
{
Console.WriteLine("Starting peer connection.");
await pc.Start().ConfigureAwait(false);
}
else
{
Console.WriteLine($"Error setting remote SDP description {result}.");
}
}
else
{
Console.WriteLine($"Janus echo test plugin request failed {echoTestResp.ErrorMessage}.");
}
}
Console.WriteLine("Press any key to exit...");
Console.ReadLine();
isFormActivated = false;
cts.Cancel();
//await janusClient.DestroySession().ConfigureAwait(false);
}
