private void OnRenegotiationNeeded1()
{
renegotiationEvent1_.Set();
if (pc1_.IsConnected)
{
pc1_.CreateOffer();
}
}
private void OnPeerRenegotiationNeeded()
{
// If already connected, update the connection on the fly.
// If not, wait for user action and don't automatically connect.
if (_peerConnection.IsConnected)
{
_peerConnection.CreateOffer();
}
}
/// <summary>
/// Start an SDP exchange by sending an offer from the given peer.
/// </summary>
/// <param name="offeringPeer">The peer to call <see cref="PeerConnection.CreateOffer"/> on.</param>
protected void StartOfferWith(PeerConnection offeringPeer)
{
Assert.IsFalse(exchangePending_);
exchangePending_ = true;
exchangeCompleted_.Reset();
connectedEvent1_.Reset();
connectedEvent2_.Reset();
Assert.IsTrue(offeringPeer.CreateOffer());
}
public async Task SctpError()
{
// Setup
var config = new PeerConnectionConfiguration();
var pc1 = new PeerConnection();
var pc2 = new PeerConnection();
await pc1.InitializeAsync(config);
await pc2.InitializeAsync(config);
pc1.LocalSdpReadytoSend += async(string type, string sdp) =>
{
await pc2.SetRemoteDescriptionAsync(type, sdp);
if (type == "offer")
{
pc2.CreateAnswer();
}
};
pc2.LocalSdpReadytoSend += async(string type, string sdp) =>
{
await pc1.SetRemoteDescriptionAsync(type, sdp);
if (type == "offer")
{
pc1.CreateAnswer();
}
};
pc1.IceCandidateReadytoSend += (string candidate, int sdpMlineindex, string sdpMid)
=> pc2.AddIceCandidate(sdpMid, sdpMlineindex, candidate);
pc2.IceCandidateReadytoSend += (string candidate, int sdpMlineindex, string sdpMid)
=> pc1.AddIceCandidate(sdpMid, sdpMlineindex, candidate);
// Connect
{
var c1 = new ManualResetEventSlim(false);
var c2 = new ManualResetEventSlim(false);
pc1.Connected += () => c1.Set();
pc2.Connected += () => c2.Set();
Assert.True(pc1.CreateOffer());
Assert.True(c1.Wait(TimeSpan.FromSeconds(60.0)));
Assert.True(c2.Wait(TimeSpan.FromSeconds(60.0)));
Assert.True(pc1.IsConnected);
Assert.True(pc1.IsConnected);
}
// Try to add a data channel. This should fail because SCTP was not negotiated.
Assert.ThrowsAsync <SctpNotNegotiatedException>(async() => await pc1.AddDataChannelAsync("dummy", false, false));
Assert.ThrowsAsync <SctpNotNegotiatedException>(async() => await pc1.AddDataChannelAsync(42, "dummy", false, false));
// Clean-up
pc1.Close();
pc1.Dispose();
pc2.Close();
pc2.Dispose();
}
public void CreateOffer(Callback <RTCSessionDescription> callback)
{
if (callback is null)
{
throw new ArgumentNullException(nameof(callback));
}
MustNotDisposed();
LastOfferId = Guid.NewGuid();
_peerConnectionImpl.CreateOffer(callback);
}
static async Task Main()
{
try
{
Console.WriteLine("Starting...");
ClientWebSocket ws = new ClientWebSocket();
CancellationTokenSource cts = new CancellationTokenSource();
// Set up the peer connection.
var pc = new PeerConnection();
pc.LocalSdpReadytoSend += async(string type, string sdp) =>
{
Console.WriteLine($"Local SDP ready {type}");
//Console.WriteLine(sdp);
// Send out SDP offer to the remote peer.
await ws.SendAsync(Encoding.UTF8.GetBytes(sdp), WebSocketMessageType.Text, true, cts.Token);
};
var config = new PeerConnectionConfiguration();
await pc.InitializeAsync(config);
Console.WriteLine("Peer connection initialized.");
await pc.AddLocalAudioTrackAsync();
await pc.AddLocalVideoTrackAsync(new PeerConnection.LocalVideoTrackSettings());
await ws.ConnectAsync(new Uri(WEBSOCKET_SERVER_URI), cts.Token);
pc.CreateOffer();
// Wait for the SDP answer to arrive from the remote peer.
byte[] answerSdpBuffer = new byte[8192];
var recvRes = await ws.ReceiveAsync(answerSdpBuffer, cts.Token);
string answerSdp = Encoding.UTF8.GetString(answerSdpBuffer, 0, recvRes.Count);
//Console.WriteLine($"answer sdp: {answerSdp}");
pc.SetRemoteDescription("answer", answerSdp);
// Don't need the web socket anymore.
await ws.CloseAsync(WebSocketCloseStatus.NormalClosure, null, cts.Token);
Console.WriteLine("Press any key to exit...");
Console.ReadLine();
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
protected async Task MakeICECall(PeerConnection pc1, PeerConnection pc2)
{
var evExchangeCompleted = new ManualResetEventSlim(initialState: false);
pc1.LocalSdpReadytoSend += async(SdpMessage message) =>
{
await pc2.SetRemoteDescriptionAsync(message);
if (message.Type == SdpMessageType.Offer)
{
pc2.CreateAnswer();
}
else
{
evExchangeCompleted.Set();
}
};
pc2.LocalSdpReadytoSend += async(SdpMessage message) =>
{
await pc1.SetRemoteDescriptionAsync(message);
if (message.Type == SdpMessageType.Offer)
{
pc1.CreateAnswer();
}
else
{
evExchangeCompleted.Set();
}
};
pc1.IceCandidateReadytoSend += (string candidate, int sdpMlineindex, string sdpMid) =>
{
pc2.AddIceCandidate(sdpMid, sdpMlineindex, candidate);
};
pc2.IceCandidateReadytoSend += (string candidate, int sdpMlineindex, string sdpMid) =>
{
pc1.AddIceCandidate(sdpMid, sdpMlineindex, candidate);
};
var pcConfig = new PeerConnectionConfiguration();
await pc1.InitializeAsync(pcConfig);
await pc2.InitializeAsync(pcConfig);
var ev1 = new ManualResetEventSlim(initialState: false);
var ev2 = new ManualResetEventSlim(initialState: false);
pc1.Connected += () => ev1.Set();
pc2.Connected += () => ev2.Set();
evExchangeCompleted.Reset();
pc1.CreateOffer();
ev1.Wait(millisecondsTimeout: 5000);
ev2.Wait(millisecondsTimeout: 5000);
evExchangeCompleted.Wait(millisecondsTimeout: 5000);
}
public async Task LocalNoICE()
{
var pc1 = new PeerConnection();
var pc2 = new PeerConnection();
var evExchangeCompleted = new ManualResetEventSlim(initialState: false);
pc1.LocalSdpReadytoSend += async(SdpMessage message) =>
{
await pc2.SetRemoteDescriptionAsync(message);
if (message.Type == SdpMessageType.Offer)
{
pc2.CreateAnswer();
}
else
{
evExchangeCompleted.Set();
}
};
pc2.LocalSdpReadytoSend += async(SdpMessage message) =>
{
await pc1.SetRemoteDescriptionAsync(message);
if (message.Type == SdpMessageType.Offer)
{
pc1.CreateAnswer();
}
else
{
evExchangeCompleted.Set();
}
};
var pcConfig = new PeerConnectionConfiguration();
await pc1.InitializeAsync(pcConfig);
await pc2.InitializeAsync(pcConfig);
var ev1 = new ManualResetEventSlim(initialState: false);
pc1.Connected += () => ev1.Set();
evExchangeCompleted.Reset();
pc1.CreateOffer();
ev1.Wait(millisecondsTimeout: 5000);
evExchangeCompleted.Wait(millisecondsTimeout: 5000);
pc1.Close();
pc2.Close();
}
private void OnRenegotiate()
{
Util.WriteLine("WebSocketSignaller.RenegotiationNeeded");
// If already connected, update the connection on the fly.
// If not, wait for user action and don't automatically connect.
if (peer.IsConnected && HasSocketConnection)
{
receivedOffer = false;
Util.WriteLine("WebSocketSignaller.peer.CreateOffer");
peer.CreateOffer();
}
}
public async void PeerConnectionLocalConnect()
{
using (var pc1 = new PeerConnection())
{
await pc1.InitializeAsync();
using (var pc2 = new PeerConnection())
{
await pc2.InitializeAsync();
// Prepare SDP event handlers
pc1.LocalSdpReadytoSend += async(string type, string sdp) =>
{
await pc2.SetRemoteDescriptionAsync(type, sdp);
if (type == "offer")
{
pc2.CreateAnswer();
}
};
pc2.LocalSdpReadytoSend += async(string type, string sdp) =>
{
await pc1.SetRemoteDescriptionAsync(type, sdp);
if (type == "offer")
{
pc1.CreateAnswer();
}
};
pc1.IceCandidateReadytoSend += (string candidate, int sdpMlineindex, string sdpMid)
=> pc2.AddIceCandidate(sdpMid, sdpMlineindex, candidate);
pc2.IceCandidateReadytoSend += (string candidate, int sdpMlineindex, string sdpMid)
=> pc1.AddIceCandidate(sdpMid, sdpMlineindex, candidate);
// Connect
var conn1 = new ManualResetEventSlim(initialState: false);
var conn2 = new ManualResetEventSlim(initialState: false);
pc1.Connected += () => conn1.Set();
pc2.Connected += () => conn2.Set();
pc1.CreateOffer();
WaitForSdpExchangeCompleted(conn1, conn2);
pc1.Close();
pc2.Close();
}
}
}
public async void PeerConnectionLocalConnect()
{
using (var pc1 = new PeerConnection())
{
await pc1.InitializeAsync();
using (var pc2 = new PeerConnection())
{
await pc2.InitializeAsync();
// Prepare SDP event handlers
pc1.LocalSdpReadytoSend += async(SdpMessage message) =>
{
await pc2.SetRemoteDescriptionAsync(message);
if (message.Type == SdpMessageType.Offer)
{
pc2.CreateAnswer();
}
};
pc2.LocalSdpReadytoSend += async(SdpMessage message) =>
{
await pc1.SetRemoteDescriptionAsync(message);
if (message.Type == SdpMessageType.Offer)
{
pc1.CreateAnswer();
}
};
pc1.IceCandidateReadytoSend += (IceCandidate candidate) => pc2.AddIceCandidate(candidate);
pc2.IceCandidateReadytoSend += (IceCandidate candidate) => pc1.AddIceCandidate(candidate);
// Connect
var conn1 = new ManualResetEventSlim(initialState: false);
var conn2 = new ManualResetEventSlim(initialState: false);
pc1.Connected += () => conn1.Set();
pc2.Connected += () => conn2.Set();
pc1.CreateOffer();
WaitForSdpExchangeCompleted(conn1, conn2);
pc1.Close();
pc2.Close();
}
}
}
protected async Task MakeICECall(PeerConnection pc1, PeerConnection pc2)
{
pc1.LocalSdpReadytoSend += (string type, string sdp) =>
{
pc2.SetRemoteDescription(type, sdp);
if (type == "offer")
{
pc2.CreateAnswer();
}
};
pc2.LocalSdpReadytoSend += (string type, string sdp) =>
{
pc1.SetRemoteDescription(type, sdp);
if (type == "offer")
{
pc1.CreateAnswer();
}
};
pc1.IceCandidateReadytoSend += (string candidate, int sdpMlineindex, string sdpMid) =>
{
pc2.AddIceCandidate(sdpMid, sdpMlineindex, candidate);
};
pc2.IceCandidateReadytoSend += (string candidate, int sdpMlineindex, string sdpMid) =>
{
pc1.AddIceCandidate(sdpMid, sdpMlineindex, candidate);
};
var pcConfig = new PeerConnectionConfiguration();
await pc1.InitializeAsync(pcConfig);
await pc2.InitializeAsync(pcConfig);
var ev1 = new ManualResetEventSlim(initialState: false);
var ev2 = new ManualResetEventSlim(initialState: false);
pc1.Connected += () => ev1.Set();
pc2.Connected += () => ev2.Set();
pc1.CreateOffer();
ev1.Wait(millisecondsTimeout: 5000);
ev2.Wait(millisecondsTimeout: 5000);
}
public async void PeerConnectionLocalConnect()
{
using (var pc1 = new PeerConnection())
{
await pc1.InitializeAsync();
using (var pc2 = new PeerConnection())
{
await pc2.InitializeAsync();
// Prepare SDP event handlers
var completed = new ManualResetEventSlim(initialState: false);
pc1.LocalSdpReadytoSend += async(SdpMessage message) =>
{
// Send caller offer to callee
await pc2.SetRemoteDescriptionAsync(message);
Assert.AreEqual(SdpMessageType.Offer, message.Type);
pc2.CreateAnswer();
};
pc2.LocalSdpReadytoSend += async(SdpMessage message) =>
{
// Send callee answer back to caller
await pc1.SetRemoteDescriptionAsync(message);
Assert.AreEqual(SdpMessageType.Answer, message.Type);
completed.Set();
};
pc1.IceCandidateReadytoSend += (IceCandidate candidate) => pc2.AddIceCandidate(candidate);
pc2.IceCandidateReadytoSend += (IceCandidate candidate) => pc1.AddIceCandidate(candidate);
// Connect
pc1.CreateOffer();
WaitForSdpExchangeCompleted(completed);
pc1.Close();
pc2.Close();
}
}
}
public static PeerConnection BindPeerWithController(PeerConnection connection, ISystemController controller)
{
connection.Connected += () =>
{
controller.PeerConnected(connection, "New user connected");
};
connection.IceCandidateReadytoSend += (candidate) =>
{
Console.WriteLine("Candidate to send: {0}", candidate.ToABJson());
controller.NotifySignaling(connection, typeof(IceCandidate), candidate.ToABJson());
};
connection.LocalSdpReadytoSend += (sdp) =>
{
Console.WriteLine("SDP to send: {0}", sdp.ToABJson());
controller.NotifySignaling(connection, typeof(SdpMessage), sdp.ToABJson());
};
connection.RenegotiationNeeded += () =>
{
Console.WriteLine("Regotiation");
bool OfferCreated = connection.CreateOffer();
};
connection.IceStateChanged += async(state) =>
{
if (state == IceConnectionState.Closed)
{
Console.WriteLine("Connection was closed, call Controller.PeerConnectionClosed");
await controller.PeerConnectionClosed(connection, "ICE state change to closed");
}
if (state == IceConnectionState.Disconnected)
{
controller.PeerConnectionDisconnected(connection, "ICE state change to disconnected");
}
};
return(connection);
}
/// <summary>
/// Start a new session negotiation.
/// </summary>
/// <exception cref="InvalidOperationException">
/// The session is not in an internal state where a new negotiation can be started, either because
/// the signaler is not ready (see <see cref="SignalerReady"/>), or because the internal negotiation
/// state is not <see cref="NegotiationState.Stable"/> meaning that another session negotiation is
/// already in process.
/// </exception>
public void StartNegotiation()
{
if (!_signalerReady)
{
throw new InvalidOperationException($"Cannot start a new session negotiation before the signaler is ready.");
}
lock (_stateLock)
{
if (_negotiationState != NegotiationState.Stable)
{
throw new InvalidOperationException($"Cannot start a new session negotiation in {_negotiationState} state.");
}
_negotiationState = NegotiationState.Starting;
_needsNegotiation = false;
// FIXME - Race condition here; if receiving a RenegotiationNeeded event between this point
// and the moment the peer connection actually starts creating the offer message. In that case
// _needsNegotiation will become true, but might conceptually be false since the change that
// raised the event will be taken into account in the call to CreateOffer() below. This is because
// we are crafting a state machine in C# instead of taping into the native implementation one.
}
RaisePropertyChanged("NegotiationState");
RaisePropertyChanged("CanNegotiate");
// TODO - Use per-transceiver properties instead of per-connection ones
// FIXME - null string crashes, need to pass empty string
_peerConnection.PreferredAudioCodec = PreferredAudioCodec ?? "";
_peerConnection.PreferredAudioCodecExtraParamsLocal = PreferredAudioCodecExtraParamsLocal ?? "";
_peerConnection.PreferredAudioCodecExtraParamsRemote = PreferredAudioCodecExtraParamsRemote ?? "";
_peerConnection.PreferredVideoCodec = PreferredVideoCodec ?? "";
_peerConnection.PreferredVideoCodecExtraParamsLocal = PreferredVideoCodecExtraParamsLocal ?? "";
_peerConnection.PreferredVideoCodecExtraParamsRemote = PreferredVideoCodecExtraParamsRemote ?? "";
PeerConnection.SetH264Config(H264Config);
// This cannot be inside the lock, otherwise the UI thread has the lock and block on the WebRTC
// signaling thread, which itself might invoked a callback into the UI thread which might require
// the lock, in which case we'd have a deadlock.
_peerConnection.CreateOffer();
}
public async Task Init(IceServerModel[] iceServers)
{
Logger.Debug("Starting WebRTC connection.");
IceServers = iceServers;
PeerSession = new PeerConnection();
var iceList = IceServers.Select(x => new IceServer()
{
Urls = { x.Url },
TurnPassword = x.TurnPassword ?? string.Empty,
TurnUserName = x.TurnUsername ?? string.Empty
}).ToList();
var config = new PeerConnectionConfiguration()
{
IceServers = iceList
};
await PeerSession.InitializeAsync(config);
PeerSession.LocalSdpReadytoSend += PeerSession_LocalSdpReadytoSend;;
PeerSession.Connected += PeerConnection_Connected;
PeerSession.IceStateChanged += PeerConnection_IceStateChanged;
PeerSession.IceCandidateReadytoSend += PeerSession_IceCandidateReadytoSend;;
CaptureChannel = await PeerSession.AddDataChannelAsync("ScreenCapture", true, true);
CaptureChannel.BufferingChanged += DataChannel_BufferingChanged;
CaptureChannel.MessageReceived += CaptureChannel_MessageReceived;
CaptureChannel.StateChanged += CaptureChannel_StateChanged;
VideoSource = ExternalVideoTrackSource.CreateFromArgb32Callback(GetCaptureFrame);
Transceiver = PeerSession.AddTransceiver(MediaKind.Video);
PeerSession.CreateOffer();
}
public async Task LocalNoICE()
{
var pc1 = new PeerConnection();
var pc2 = new PeerConnection();
pc1.LocalSdpReadytoSend += async(string type, string sdp) =>
{
await pc2.SetRemoteDescriptionAsync(type, sdp);
if (type == "offer")
{
pc2.CreateAnswer();
}
};
pc2.LocalSdpReadytoSend += async(string type, string sdp) =>
{
await pc1.SetRemoteDescriptionAsync(type, sdp);
if (type == "offer")
{
pc1.CreateAnswer();
}
};
var pcConfig = new PeerConnectionConfiguration();
await pc1.InitializeAsync(pcConfig);
await pc2.InitializeAsync(pcConfig);
var ev1 = new ManualResetEventSlim(initialState: false);
pc1.Connected += () => ev1.Set();
pc1.CreateOffer();
ev1.Wait(millisecondsTimeout: 5000);
pc1.Close();
pc2.Close();
}
public async Task InBand()
{
// Setup
var config = new PeerConnectionConfiguration();
var pc1 = new PeerConnection();
var pc2 = new PeerConnection();
await pc1.InitializeAsync(config);
await pc2.InitializeAsync(config);
pc1.LocalSdpReadytoSend += (string type, string sdp) =>
{
pc2.SetRemoteDescription(type, sdp);
if (type == "offer")
{
pc2.CreateAnswer();
}
};
pc2.LocalSdpReadytoSend += (string type, string sdp) =>
{
pc1.SetRemoteDescription(type, sdp);
if (type == "offer")
{
pc1.CreateAnswer();
}
};
pc1.IceCandidateReadytoSend += (string candidate, int sdpMlineindex, string sdpMid)
=> pc2.AddIceCandidate(sdpMid, sdpMlineindex, candidate);
pc2.IceCandidateReadytoSend += (string candidate, int sdpMlineindex, string sdpMid)
=> pc1.AddIceCandidate(sdpMid, sdpMlineindex, candidate);
// Add dummy out-of-band data channel to force SCTP negotiating.
// Otherwise after connecting AddDataChannelAsync() will fail.
await pc1.AddDataChannelAsync(42, "dummy", false, false);
await pc2.AddDataChannelAsync(42, "dummy", false, false);
// Connect
{
var c1 = new ManualResetEventSlim(false);
var c2 = new ManualResetEventSlim(false);
pc1.Connected += () => c1.Set();
pc2.Connected += () => c2.Set();
Assert.True(pc1.CreateOffer());
Assert.True(c1.Wait(TimeSpan.FromSeconds(60.0)));
Assert.True(c2.Wait(TimeSpan.FromSeconds(60.0)));
Assert.True(pc1.IsConnected);
Assert.True(pc1.IsConnected);
}
// Negotiate data channel in-band
DataChannel data1 = null;
DataChannel data2 = null;
{
var c2 = new ManualResetEventSlim(false);
pc2.DataChannelAdded += (DataChannel channel) =>
{
data2 = channel;
c2.Set();
};
data1 = await pc1.AddDataChannelAsync("test_data_channel", true, true);
Assert.IsNotNull(data1);
Assert.True(c2.Wait(TimeSpan.FromSeconds(60.0)));
Assert.IsNotNull(data2);
Assert.AreEqual(data1.Label, data2.Label);
// Do not test DataChannel.ID; at this point for in-band channels the ID has not
// been agreed upon with the remote peer yet.
}
// Send data
{
var c2 = new ManualResetEventSlim(false);
string sentText = "Some sample text";
byte[] msg = Encoding.UTF8.GetBytes(sentText);
data2.MessageReceived += (byte[] _msg) =>
{
var receivedText = Encoding.UTF8.GetString(_msg);
Assert.AreEqual(sentText, receivedText);
c2.Set();
};
data1.SendMessage(msg);
Assert.True(c2.Wait(TimeSpan.FromSeconds(60.0)));
}
// Clean-up
pc1.Close();
pc1.Dispose();
pc2.Close();
pc2.Dispose();
}
public async Task SetupAsync(Signaler signaler, bool isServer, uint clientNodeId = 0)
{
await pc.InitializeAsync(new PeerConnectionConfiguration {
IceServers = new List <IceServer> {
new IceServer {
Urls = { signaler.IceServerUrl }
}
}
});
var tcs = new TaskCompletionSource <bool>();
// Do signaling
// https://microsoft.github.io/MixedReality-WebRTC/manual/cs/cs-signaling.html
// https://microsoft.github.io/MixedReality-WebRTC/manual/cs/helloworld-cs-signaling-core3.html
pc.LocalSdpReadytoSend += (SdpMessage sdpMessage) => {
// ここはawaitではなくWaitにしないとSocketが切れる．スレッドセーフ関係?
signaler.SendSdpAsync(sdpMessage.Type == SdpMessageType.Offer, sdpMessage.Content, clientNodeId).Wait();
};
pc.IceCandidateReadytoSend += (IceCandidate candidate) => {
signaler.SendIceAsync(candidate.SdpMid, candidate.SdpMlineIndex, candidate.Content, clientNodeId).Wait();
};
pc.IceStateChanged += (IceConnectionState state) => {
Logger.Debug("Connection", $"ICE state changed to {state}");
// https://microsoft.github.io/MixedReality-WebRTC/versions/release/2.0/api/Microsoft.MixedReality.WebRTC.IceConnectionState.html
if (state == IceConnectionState.Connected)
{
Connected = true;
}
if (state == IceConnectionState.Closed || state == IceConnectionState.Disconnected || state == IceConnectionState.Failed)
{
Connected = false;
OnDisconnect();
}
if (!isServer && state == IceConnectionState.Failed)
{
tcs.SetException(new ConnectionException("Failed to establish a WebRTC connection"));
}
};
signaler.SdpReceived += async(bool isOffer, string sdp, uint cid) => {
if (isServer && cid != clientNodeId)
{
// ignore messages for other clients
return;
}
await pc.SetRemoteDescriptionAsync(new SdpMessage {
Type = isOffer ? SdpMessageType.Offer : SdpMessageType.Answer,
Content = sdp
});
if (isOffer)
{
pc.CreateAnswer();
}
};
signaler.IceReceived += (string sdpMid, int sdpMLineIndex, string candidate, uint cid) => {
if (isServer && cid != clientNodeId)
{
// ignore messages for other clients
return;
}
pc.AddIceCandidate(new IceCandidate {
SdpMid = sdpMid,
SdpMlineIndex = sdpMLineIndex,
Content = candidate
});
//Logger.Write((isServer ? "Server: " : "Client: ") + $"{sdpMid} {sdpMLineIndex} {candidate}");
};
if (isServer)
{
TaskCompletionSource <DataChannel>[] completionSources = channelTypes.Select(
_ => new TaskCompletionSource <DataChannel>()
).ToArray();
pc.DataChannelAdded += (dc) => {
foreach (var type in channelTypes)
{
if (dc.Label == channelLabels[(int)type])
{
completionSources[(int)type].SetResult(dc);
}
}
};
Logger.Debug("Connection", "Server is ready for signaling");
await signaler.NotifyReadyAsync(clientNodeId);
Logger.Debug("Connection", "Server: Waiting for DC");
foreach (var type in channelTypes)
{
channels[(int)type] = await completionSources[(int)type].Task;
}
}
else
{
// Define channels
// Sync channel (unreliable)
channels[(int)ChannelType.Sync] = await pc.AddDataChannelAsync(
channelLabels[(int)ChannelType.Sync], ordered : false, reliable : false);
// Message channel (reliable but order is not guaranteed)
channels[(int)ChannelType.Control] = await pc.AddDataChannelAsync(
channelLabels[(int)ChannelType.Control], ordered : false, reliable : true);
// Blob channel (reliable and ordered)
channels[(int)ChannelType.Blob] = await pc.AddDataChannelAsync(
channelLabels[(int)ChannelType.Blob], ordered : true, reliable : true);
// Audio channel (unreliable)
channels[(int)ChannelType.Audio] = await pc.AddDataChannelAsync(
channelLabels[(int)ChannelType.Audio], ordered : false, reliable : false);
Logger.Debug("Connection", "Client: Waiting for server ready");
await signaler.WaitReadyAsync();
pc.CreateOffer();
}
foreach (var(dc, idx) in channels.Select((dc, idx) => (dc, idx)))
{
dc.MessageReceived += (data) => {
threadChannels[idx].Writer.TryWrite(data); // Always succeeds because the Channel is unbounded
};
dc.StateChanged += () => {
Logger.Debug("Connection", $"DC {(ChannelType)idx} state changed to {dc.State}");
if (dc.State == DataChannel.ChannelState.Closing)
{
// Disconnect handling
Connected = false;
}
};
}
//await Task.Delay(5000);
if (!isServer)
{
// FIXME: Waiting pc.Connected not work in server (cannot establish a connection to client)
// In server, should wait until all DataChannels are added?
pc.Connected += () => {
tcs.SetResult(true);
};
await tcs.Task;
}
}
static async Task Main(string[] args)
{
Transceiver audioTransceiver = null;
Transceiver videoTransceiver = null;
AudioTrackSource audioTrackSource = null;
VideoTrackSource videoTrackSource = null;
LocalAudioTrack localAudioTrack = null;
LocalVideoTrack localVideoTrack = null;
try
{
bool needVideo = Array.Exists(args, arg => (arg == "-v") || (arg == "--video"));
bool needAudio = Array.Exists(args, arg => (arg == "-a") || (arg == "--audio"));
// Asynchronously retrieve a list of available video capture devices (webcams).
var deviceList = await PeerConnection.GetVideoCaptureDevicesAsync();
// For example, print them to the standard output
foreach (var device in deviceList)
{
Console.WriteLine($"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 DeviceAudioTrackSource.CreateAsync();
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();
}
static private async Task StartStend()
{
var autoEvent = new AutoResetEvent(false);
bool video_translator = true;
bool file_created = false;
FileStream file = null;
Quartus quartus = Quartus.GetInstance();
Microcontroller arduino = Microcontroller.Create();
if (video_translator)
{
// Asynchronously retrieve a list of available video capture devices (webcams).
var deviceList = await DeviceVideoTrackSource.GetCaptureDevicesAsync();
// 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
var pc = new PeerConnection();
// Initialize the connection with a STUN server to allow remote access
var config = SystemConfiguration.PeerConnectionSettings;
await pc.InitializeAsync(config);
Console.WriteLine("Peer connection initialized.");
//var chen = await pc.AddDataChannelAsync("sendDataChannel", true, true, cancellationToken: default);
Console.WriteLine("Opening local webcam...");
// pc - PeerConnection object
Transceiver videoTransceiver = null;
VideoTrackSource videoTrackSource = null;
LocalVideoTrack localVideoTrack = null;
LocalVideoDeviceInitConfig c = new LocalVideoDeviceInitConfig();
await VideoDeviceSelection();
videoTrackSource = await Camera.CreateAsync(SystemConfiguration.VideoDeviceSettings);
WebSocketSharp.WebSocket signaling = new WebSocketSharp.WebSocket(CreateSignalingServerUrl(), "id_token", "alpine");
pc.LocalSdpReadytoSend += (SdpMessage message) =>
{
//Console.WriteLine(SdpMessage.TypeToString(message.Type));
Console.WriteLine(message.Content);
//Console.WriteLine(HttpUtility.JavaScriptStringEncode(message.Content));
Console.WriteLine("Sdp offer to send: {\"data\":{\"description\":{\"type\":\"" + SdpMessage.TypeToString(message.Type) + "\",\"sdp\":\"" + HttpUtility.JavaScriptStringEncode(message.Content) + "\"}}}");
signaling.Send(message.ToABJson());
};
pc.RenegotiationNeeded += () =>
{
Console.WriteLine("Regotiation needed");
bool OfferCreated = pc.CreateOffer();
Console.WriteLine("OfferCreated? {0}", OfferCreated);
};
pc.DataChannelAdded += (DataChannel channel) =>
{
Console.WriteLine("Added data channel ID: {0}, Label: {1}; Reliable: {2}, Ordered: {3}", channel.ID, channel.Label, channel.Reliable, channel.Ordered);
if (channel.Label == "sendDataChannel")
{
channel.MessageReceived += (byte[] mess) => {
try
{
CTP_packet command = JsonSerializer.Deserialize <CTP_packet>(mess);
Console.WriteLine(arduino.SendCTP_Command(command));
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
};
}
else
{
if (file_created == false)
{
file = new FileStream(channel.Label, FileMode.Append);
file_created = true;
}
channel.MessageReceived += async(byte[] mess) =>
{
// Console.WriteLine(System.Text.Encoding.Default.GetString(mess));
if (mess.Length == 3 && System.Text.Encoding.Default.GetString(mess) == "EOF")
{
string file_name = file.Name;
file.Close();
string t = await quartus.RunQuartusCommandAsync($"quartus_pgm -m jtag –o \"p;{file_name}@1\"");
File.Delete(file_name);
file_created = false;
}
else
{
WriteFileSegment(mess, file);
}
};
}
channel.StateChanged += () =>
{
Console.WriteLine("State change: {0}", channel.State);
};
};
pc.IceCandidateReadytoSend += (IceCandidate candidate) =>
{
//Console.WriteLine("Content: {0}, SdpMid: {1}, SdpMlineIndex: {2}", candidate.Content, candidate.SdpMid, candidate.SdpMlineIndex);
try
{
Console.WriteLine("Candidate to send: Content: {0}, SdpMid: {1}, SdpMlineIndex: {2}", candidate.Content, candidate.SdpMid, candidate.SdpMlineIndex);
signaling.Send(candidate.ToABJson());
}
catch (Exception e)
{
Console.WriteLine("Error to send local ice candidate");
}
};
//videoTrackSource.I420AVideoFrameReady += (frame) =>
//{
// Console.WriteLine("Argb32 frame ready. {0} : {1}", frame.width, frame.height);
// Console.WriteLine("DataA: {0}, DataU: {1}, DataV: {2}, DataY: {3}", Marshal.SizeOf(frame.dataA),
// Marshal.SizeOf(frame.dataU),
// Marshal.SizeOf(frame.dataV),
// Marshal.SizeOf(frame.dataY));
//};
signaling.OnMessage += async(sender, message) =>
{
(string header, string correct_message) = message.Data.DivideHeaderAndOriginalJSON();
Console.WriteLine("Correct message: {0}", correct_message);
Console.WriteLine("Header: {0}", header);
if (header == "{\"data\":{\"getRemoteMedia\":" && correct_message == "true")
{
Console.WriteLine("Create local video track...");
var trackSettings = new LocalVideoTrackInitConfig {
trackName = "webcam_track"
};
localVideoTrack = LocalVideoTrack.CreateFromSource(videoTrackSource, new LocalVideoTrackInitConfig {
trackName = "webcam_track"
});
Console.WriteLine("Create video transceiver and add webcam track...");
TransceiverInitSettings option = new TransceiverInitSettings();
option.Name = "webcam_track";
option.StreamIDs = new List <string> {
"webcam_name"
};
videoTransceiver = pc.AddTransceiver(MediaKind.Video, option);
videoTransceiver.DesiredDirection = Transceiver.Direction.SendOnly;
videoTransceiver.LocalVideoTrack = localVideoTrack;
bool OfferCreated = pc.CreateOffer();
Console.WriteLine("OfferCreated? {0}", OfferCreated);
}
//Console.WriteLine(message.Data);
if (header.IndexOf("candidate") != -1 && correct_message != "null")
{
try
{
var candidate = JsonSerializer.Deserialize <ICEJavaScriptNotation>(correct_message);
Console.WriteLine("Content of ice: {0}, SdpMid: {1}, SdpMLineIndex: {2}", candidate.candidate, candidate.sdpMid, candidate.sdpMLineIndex);
pc.AddIceCandidate(candidate.ToMRNetCoreNotation());
Console.WriteLine("Deserialized by ice_candidate");
//return;
}
catch (Exception)
{
Console.WriteLine("Could not deserialize as ice candidate");
}
}
if (header.IndexOf("description") != -1)
{
try
{
SdpMessage received_description = JsonSerializer.Deserialize <SDPJavaScriptNotation>(correct_message).ToMRNetCoreNotation();
await pc.SetRemoteDescriptionAsync(received_description);
if (received_description.Type == SdpMessageType.Offer)
{
bool res = pc.CreateAnswer();
Console.WriteLine("Answer created? {0}", res);
}
Console.WriteLine("Deserialized by sdp_message");
}
catch (Exception)
{
Console.WriteLine("Could not deserialize as sdp message");
}
}
};
pc.Connected += () =>
{
Console.WriteLine("Connected");
};
pc.IceStateChanged += (IceConnectionState newState) =>
{
if (newState == IceConnectionState.Disconnected)
{
Console.WriteLine("Disconected");
}
};
signaling.Connect();
if (!video_translator)
{
signaling.Send("{\"data\":{\"getRemoteMedia\":true}}");
}
//Console.WriteLine("Press a key to terminate the application...");
Console.ReadKey(true);
Console.WriteLine("Program termined.");
file?.Close();
pc?.Close();
signaling?.Close();
//arduino?.Close();
//(var a, var b) = ConvertString("{\"data\":{\"candidate\":null}}");
//Console.WriteLine("{0}, {1}", a, b);
}
public void CreateOffer(MediaConstraints constraints,
ISdpObserver observer)
{
_peerConnection.CreateOffer(new SdpObserverProxy(observer), constraints.ToNative());
}
private void Start_Clicked(object sender, RoutedEventArgs e)
{
_peerConnection.CreateOffer();
// _shouldHideCursor = true;
}
private void BnCreateOffer_Click(object sender, RoutedEventArgs e)
{
_peerConnection.CreateOffer();
}
static async Task Main(string[] args)
{
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($"Found webcam {device.name} (id: {device.id})");
}
// Create a new peer connection automatically disposed at the end of the program
using var pc = new PeerConnection();
// Initialize the connection with a STUN server to allow remote access
var config = new PeerConnectionConfiguration
{
IceServers = new List <IceServer> {
new IceServer {
Urls = { "stun:stun.l.google.com:19302" }
}
}
};
await pc.InitializeAsync(config);
Console.WriteLine("Peer connection initialized.");
// Record video from local webcam, and send to remote peer
if (needVideo)
{
Console.WriteLine("Opening local webcam...");
await pc.AddLocalVideoTrackAsync();
}
// Record audio from local microphone, and send to remote peer
if (needAudio)
{
Console.WriteLine("Opening local microphone...");
await pc.AddLocalAudioTrackAsync();
}
// Setup signaling
Console.WriteLine("Starting signaling...");
var signaler = new NamedPipeSignaler.NamedPipeSignaler(pc, "testpipe");
signaler.SdpMessageReceived += (string type, string sdp) => {
pc.SetRemoteDescription(type, sdp);
if (type == "offer")
{
pc.CreateAnswer();
}
};
signaler.IceCandidateReceived += (string sdpMid, int sdpMlineindex, string candidate) => {
pc.AddIceCandidate(sdpMid, sdpMlineindex, candidate);
};
await signaler.StartAsync();
// Start peer connection
pc.Connected += () => { Console.WriteLine("PeerConnection: connected."); };
pc.IceStateChanged += (IceConnectionState newState) => { Console.WriteLine($"ICE state: {newState}"); };
int numFrames = 0;
pc.I420RemoteVideoFrameReady += (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);
}
Console.WriteLine("Program termined.");
}
static async Task Main()
{
try
{
Console.WriteLine("Starting...");
//create and Initialize capture object to record audio
var waveFormat = new WaveFormat(44100, 32, 2, AudioEncoding.MpegLayer3);
WasapiCapture capture = new WasapiCapture(true, AudioClientShareMode.Shared, 100, waveFormat);
//initialize the selected device for recording
capture.Initialize();
//fill ice servers here
List <string> urls = new List <string>();
using var pc = new PeerConnection();
var config = new PeerConnectionConfiguration
{
IceServers = new List <IceServer> {
new IceServer {
Urls = urls,
}
}
,
BundlePolicy = BundlePolicy.MaxBundle
};
await pc.InitializeAsync(config);
Console.WriteLine("Peer connection initialized.");
//create audio transceiver
Transceiver transceiver = pc.AddTransceiver(MediaKind.Audio);
transceiver.DesiredDirection = Transceiver.Direction.ReceiveOnly;
Console.WriteLine("Create audio transceiver ...");
DataChannel chanel = await pc.AddDataChannelAsync("Data", true, true, cancellationToken : default);
string url = "";
WebSocketSharp.WebSocket signaling = new WebSocket(url);
signaling.SslConfiguration.EnabledSslProtocols = System.Security.Authentication.SslProtocols.Tls12;
signaling.OnMessage += async(sender, message) =>
{
try
{
//response messages may differ from service provider to another, adjust WebsocketResponse object accordingly
var messageObject = JsonConvert.DeserializeObject <WebsocketResponse>(message.Data);
var mess = new SdpMessage {
Content = messageObject.Data.Sdp, Type = SdpMessage.StringToType("answer")
};
if (!string.IsNullOrEmpty(mess.Content))
{
Console.WriteLine("Sdpmessage: {0}, Type: {1}", mess.Content, mess.Type);
await pc.SetRemoteDescriptionAsync(mess);
if (mess.Type == SdpMessageType.Answer)
{
bool res = pc.CreateAnswer();
Console.WriteLine("Answer created? {0}", res);
}
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
};
signaling.OnError += (sender, e) =>
{
Console.WriteLine(e.Message, e.Exception);
};
signaling.OnOpen += (sender, e) =>
{
pc.CreateOffer();
Console.WriteLine("open");
};
signaling.Connect();
transceiver.Associated += (tranciever) =>
{
Console.WriteLine("Transivier: {0}, {1}", tranciever.Name, tranciever.StreamIDs);
};
pc.LocalSdpReadytoSend += (SdpMessage message) =>
{
Console.WriteLine(message.Content);
//modify the offer message according to your need
var data = new
{
streamId = "",
sdp = message.Content
};
var payload = JsonConvert.SerializeObject(new
{
type = "cmd",
transId = 0,
name = "view",
data = data
});
Console.WriteLine("Sdp offer to send: " + payload);
signaling.Send(payload);
};
pc.RenegotiationNeeded += () =>
{
Console.WriteLine("Regotiation needed");
};
//when a remote audio track is added, start recording
pc.AudioTrackAdded += (RemoteAudioTrack track) =>
{
//create a wavewriter to write the data to
WaveWriter w = new WaveWriter("audio.mp3", capture.WaveFormat);
//setup an eventhandler to receive the recorded data
capture.DataAvailable += (s, e) =>
{
//save the recorded audio
w.Write(e.Data, e.Offset, e.ByteCount);
};
//start recording
capture.Start();
//this should output the sound
track.OutputToDevice(true);
//track.AudioFrameReady += (AudioFrame frame) =>
//{
//you can print anything here if you want to make sure that's you're recieving audio
//};
};
pc.Connected += () =>
{
Console.WriteLine("Connected");
Console.WriteLine(pc.DataChannels.Count);
};
pc.IceStateChanged += (IceConnectionState newState) =>
{
Console.WriteLine($"ICE state: {newState}");
};
Console.WriteLine("Press enter to stop");
Console.ReadLine();
//stop recording
capture.Stop();
pc.Close();
signaling.Close();
Console.WriteLine("Program termined.");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
public async Task <string> InitiateCallRTC()
{
var list = new List <string>();
list.Add(this.Configuration.GetSection("Key")["iceServer"]);
AudioTrackSource microphoneSource = null;
LocalAudioTrack localAudioTrack = null;
Transceiver audioTransceiver = null;
var iceServer = new IceServer
{
Urls = list,
TurnPassword = this.Configuration.GetSection("Key")["turnPwd"],
TurnUserName = this.Configuration.GetSection("Key")["turnUser"]
};
var serverList = new List <IceServer>();
serverList.Add(iceServer);
var connectionConfig = new PeerConnectionConfiguration {
IceServers = serverList,
IceTransportType = IceTransportType.All,
BundlePolicy = BundlePolicy.Balanced,
SdpSemantic = SdpSemantic.UnifiedPlan
};
var connection = new PeerConnection();
await connection.InitializeAsync(connectionConfig);
microphoneSource = await DeviceAudioTrackSource.CreateAsync();
var audioTrackConfig = new LocalAudioTrackInitConfig
{
trackName = "microphone_track"
};
localAudioTrack = LocalAudioTrack.CreateFromSource(microphoneSource, audioTrackConfig);
audioTransceiver = connection.AddTransceiver(MediaKind.Audio);
audioTransceiver.LocalAudioTrack = localAudioTrack;
audioTransceiver.DesiredDirection = Transceiver.Direction.SendReceive;
var signaler = new NamedPipeSignaler.NamedPipeSignaler(connection, "testpipe");
connection.Connected += () => {
Console.WriteLine("PeerConnection: connected.");
};
signaler.SdpMessageReceived += async(SdpMessage message) =>
{
// Note: we use 'await' to ensure the remote description is applied
// before calling CreateAnswer(). Failing to do so will prevent the
// answer from being generated, and the connection from establishing.
await connection.SetRemoteDescriptionAsync(message);
if (message.Type == SdpMessageType.Offer)
{
connection.CreateAnswer();
}
};
await signaler.StartAsync();
signaler.IceCandidateReceived += (IceCandidate candidate) => {
connection.AddIceCandidate(candidate);
};
connection.IceStateChanged += (IceConnectionState newState) => {
Console.WriteLine($"ICE state: {newState}");
};
if (signaler.IsClient)
{
Console.WriteLine("Connecting to remote peer...");
connection.CreateOffer();
}
else
{
Console.WriteLine("Waiting for offer from remote peer...");
}
return(connection.IsConnected + "-" + connection.Name + "-");
}
public void OfferForConstraints(Core.MediaConstraints mediaConstraints, Core.Interfaces.ISdpObserver sdpObserver) => _peerConnection.CreateOffer(new PlatformSdpObserver(sdpObserver), mediaConstraints.ToPlatformNative());
static async Task Main(string[] args)
{
DataChannel dataChannel = null;
try
{
// Create a new peer connection automatically disposed at the end of the program
using var pc = new PeerConnection();
// Initialize the connection with a STUN server to allow remote access
var config = new PeerConnectionConfiguration
{
IceServers = new List <IceServer> {
new IceServer {
Urls = { "stun:stun.l.google.com:19302" }
}
}
};
await pc.InitializeAsync(config);
Console.WriteLine("Peer connection initialized.");
Console.WriteLine("Opening data channel");
dataChannel = await pc.AddDataChannelAsync("data", true, true);
// Setup signaling
Console.WriteLine("Starting signaling...");
var signaler = new NamedPipeSignaler.NamedPipeSignaler(pc, "testpipe");
signaler.SdpMessageReceived += (string type, string sdp) => {
pc.SetRemoteDescription(type, sdp);
if (type == "offer")
{
pc.CreateAnswer();
}
};
signaler.IceCandidateReceived += (string sdpMid, int sdpMlineindex, string candidate) => {
pc.AddIceCandidate(sdpMid, sdpMlineindex, candidate);
};
await signaler.StartAsync();
// Start peer connection
pc.Connected += () => { Console.WriteLine("PeerConnection: connected."); };
pc.IceStateChanged += (IceConnectionState newState) => { Console.WriteLine($"ICE state: {newState}"); };
pc.DataChannelAdded += (DataChannel c) =>
{
Console.WriteLine("DataChannel added");
c.MessageReceived += (byte[] _msg) =>
{
Console.WriteLine("received {0} bytes", _msg.Length);
};
};
if (signaler.IsClient)
{
Console.WriteLine("Connecting to remote peer...");
pc.CreateOffer();
}
else
{
Console.WriteLine("Waiting for offer from remote peer...");
}
Console.WriteLine("Press a 'S' to send data. 'Esc' to exit ...");
ConsoleKeyInfo key;
while ((key = Console.ReadKey(true)).Key != ConsoleKey.Escape)
{
if (key.Key == ConsoleKey.S)
{
Console.WriteLine("Sending data");
dataChannel.SendMessage(new byte[3000]);
}
}
signaler.Stop();
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
Console.WriteLine("Program termined.");
}