public async Task AddAudioTrackFromDeviceAsync(string trackName)
{
const string DefaultAudioDeviceName = "Default audio device";
await RequestMediaAccessAsync(StreamingCaptureMode.Audio);
// FIXME - this leaks 'source', never disposed (and is the track itself disposed??)
var initConfig = new LocalAudioDeviceInitConfig();
var source = await AudioTrackSource.CreateFromDeviceAsync(initConfig);
var settings = new LocalAudioTrackInitConfig
{
trackName = trackName
};
var track = LocalAudioTrack.CreateFromSource(source, settings);
SessionModel.Current.AudioTracks.Add(new AudioTrackViewModel
{
Source = source,
Track = track,
TrackImpl = track,
IsRemote = false,
DeviceName = DefaultAudioDeviceName
});
SessionModel.Current.LocalTracks.Add(new TrackViewModel(Symbol.Volume)
{
DisplayName = DefaultAudioDeviceName
});
}
public async Task CreateFromDevice()
{
using (AudioTrackSource source = await AudioTrackSource.CreateFromDeviceAsync())
{
Assert.IsNotNull(source);
Assert.AreEqual(string.Empty, source.Name);
Assert.AreEqual(0, source.Tracks.Count);
}
}
public async Task Name()
{
using (AudioTrackSource source = await AudioTrackSource.CreateFromDeviceAsync())
{
Assert.IsNotNull(source);
const string kTestName = "test_audio_track_source_name";
source.Name = kTestName;
Assert.AreEqual(kTestName, source.Name);
}
}
public async Task CreateFromSource()
{
using (AudioTrackSource source = await AudioTrackSource.CreateFromDeviceAsync())
{
Assert.IsNotNull(source);
var settings = new LocalAudioTrackInitConfig {
trackName = "track_name"
};
using (LocalAudioTrack track = LocalAudioTrack.CreateFromSource(source, settings))
{
Assert.IsNotNull(track);
}
}
}
public MediaPlayerViewModel()
{
_videoPlayer.CurrentStateChanged += OnMediaStateChanged;
_videoPlayer.MediaOpened += OnMediaOpened;
_videoPlayer.MediaFailed += OnMediaFailed;
_videoPlayer.MediaEnded += OnMediaEnded;
_videoPlayer.RealTimePlayback = true;
_videoPlayer.AutoPlay = false;
AudioTrackTypeList.Add(new AudioTrackTypeViewModel
{
DisplayName = "Local microphone (default device)",
Factory = async() =>
{
// FIXME - this leaks 'source', never disposed (and is the track itself disposed??)
var source = await AudioTrackSource.CreateFromDeviceAsync();
var settings = new LocalAudioTrackInitConfig();
return(LocalAudioTrack.CreateFromSource(source, settings));
}
});
VideoTrackTypeList.Add(new VideoTrackTypeViewModel
{
DisplayName = "Local webcam (default device)",
Factory = async() =>
{
// FIXME - this leaks 'source', never disposed (and is the track itself disposed??)
var source = await DeviceVideoTrackSource.CreateAsync();
var settings = new LocalVideoTrackInitConfig();
return(LocalVideoTrack.CreateFromSource(source, settings));
}
});
_videoStatsTimer.Interval = TimeSpan.FromMilliseconds(300);
_videoStatsTimer.Tick += (_1, _2) => UpdateVideoStats();
}
static async Task Main(string[] args)
{
Transceiver audioTransceiver = null;
Transceiver videoTransceiver = null;
AudioTrackSource audioTrackSource = null;
VideoTrackSource videoTrackSource = null;
LocalAudioTrack localAudioTrack = null;
LocalVideoTrack localVideoTrack = null;
try
{
bool needVideo = Array.Exists(args, arg => (arg == "-v") || (arg == "--video"));
bool needAudio = Array.Exists(args, arg => (arg == "-a") || (arg == "--audio"));
// Asynchronously retrieve a list of available video capture devices (webcams).
var deviceList = await PeerConnection.GetVideoCaptureDevicesAsync();
// For example, print them to the standard output
foreach (var device in deviceList)
{
Console.WriteLine($"Found webcam {device.name} (id: {device.id})");
}
// Create a new peer connection automatically disposed at the end of the program
using var pc = new PeerConnection();
// Initialize the connection with a STUN server to allow remote access
var config = new PeerConnectionConfiguration
{
IceServers = new List <IceServer> {
new IceServer {
Urls = { "stun:stun.l.google.com:19302" }
}
}
};
await pc.InitializeAsync(config);
Console.WriteLine("Peer connection initialized.");
// Record video from local webcam, and send to remote peer
if (needVideo)
{
Console.WriteLine("Opening local webcam...");
videoTrackSource = await DeviceVideoTrackSource.CreateAsync();
Console.WriteLine("Create local video track...");
var trackSettings = new LocalVideoTrackInitConfig {
trackName = "webcam_track"
};
localVideoTrack = LocalVideoTrack.CreateFromSource(videoTrackSource, trackSettings);
Console.WriteLine("Create video transceiver and add webcam track...");
videoTransceiver = pc.AddTransceiver(MediaKind.Video);
videoTransceiver.DesiredDirection = Transceiver.Direction.SendReceive;
videoTransceiver.LocalVideoTrack = localVideoTrack;
}
// Record audio from local microphone, and send to remote peer
if (needAudio)
{
Console.WriteLine("Opening local microphone...");
audioTrackSource = await AudioTrackSource.CreateFromDeviceAsync();
Console.WriteLine("Create local audio track...");
var trackSettings = new LocalAudioTrackInitConfig {
trackName = "mic_track"
};
localAudioTrack = LocalAudioTrack.CreateFromSource(audioTrackSource, trackSettings);
Console.WriteLine("Create audio transceiver and add mic track...");
audioTransceiver = pc.AddTransceiver(MediaKind.Audio);
audioTransceiver.DesiredDirection = Transceiver.Direction.SendReceive;
audioTransceiver.LocalAudioTrack = localAudioTrack;
}
// Setup signaling
Console.WriteLine("Starting signaling...");
var signaler = new NamedPipeSignaler.NamedPipeSignaler(pc, "testpipe");
signaler.SdpMessageReceived += async(SdpMessage message) =>
{
await pc.SetRemoteDescriptionAsync(message);
if (message.Type == SdpMessageType.Offer)
{
pc.CreateAnswer();
}
};
signaler.IceCandidateReceived += (IceCandidate candidate) =>
{
pc.AddIceCandidate(candidate);
};
await signaler.StartAsync();
// Start peer connection
pc.Connected += () => { Console.WriteLine("PeerConnection: connected."); };
pc.IceStateChanged += (IceConnectionState newState) => { Console.WriteLine($"ICE state: {newState}"); };
int numFrames = 0;
pc.VideoTrackAdded += (RemoteVideoTrack track) =>
{
track.I420AVideoFrameReady += (I420AVideoFrame frame) =>
{
++numFrames;
if (numFrames % 60 == 0)
{
Console.WriteLine($"Received video frames: {numFrames}");
}
};
};
if (signaler.IsClient)
{
Console.WriteLine("Connecting to remote peer...");
pc.CreateOffer();
}
else
{
Console.WriteLine("Waiting for offer from remote peer...");
}
Console.WriteLine("Press a key to stop recording...");
Console.ReadKey(true);
signaler.Stop();
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
localAudioTrack?.Dispose();
localVideoTrack?.Dispose();
Console.WriteLine("Program termined.");
localAudioTrack.Dispose();
localVideoTrack.Dispose();
audioTrackSource.Dispose();
videoTrackSource.Dispose();
}