private IEnumerator OnOffer(RTCSessionDescription desc)
{
Debug.Log("OnOffer");
Debug.Log("SetRemoteDescription start");
var op = pc.SetRemoteDescription(ref desc);
yield return(op);
if (!op.IsError)
{
Debug.Log("SetRemoteDescription succeed");
}
else
{
Debug.Log("SetLocalDescription failed");
}
var op1 = pc.CreateAnswer(ref _answerOptions);
yield return(op1);
if (!op1.IsError)
{
Debug.Log("CreateAnswer succeed");
yield return(OnCreateAnswerSuccess(op1.Desc));
}
else
{
Debug.Log("CreateAnswer failed");
}
}
public IEnumerator CreateAnswer()
{
var config = GetDefaultConfiguration();
var peer1 = new RTCPeerConnection(ref config);
var peer2 = new RTCPeerConnection(ref config);
peer1.CreateDataChannel("data");
var op1 = peer1.CreateOffer();
yield return(op1);
var desc = op1.Desc;
var op2 = peer1.SetLocalDescription(ref desc);
yield return(op2);
var op3 = peer2.SetRemoteDescription(ref desc);
yield return(op3);
var op4 = peer2.CreateAnswer();
yield return(op4);
Assert.True(op4.IsDone);
Assert.False(op4.IsError);
peer1.Close();
peer2.Close();
peer1.Dispose();
peer2.Dispose();
}
public IEnumerator UnitySetUp()
{
WebRTC.WebRTC.Initialize();
RTCConfiguration config = default;
RTCIceCandidate candidate_ = null;
config.iceServers = new[] { new RTCIceServer {
urls = new[] { "stun:stun.l.google.com:19302" }
} };
var peer1 = new RTCPeerConnection(ref config);
var peer2 = new RTCPeerConnection(ref config);
peer1.OnIceCandidate = candidate => { candidate_ = candidate; };
MediaStream stream = WebRTC.Audio.CaptureStream();
peer1.AddTrack(stream.GetTracks().First());
RTCOfferOptions offerOptions = new RTCOfferOptions();
var op1 = peer1.CreateOffer(ref offerOptions);
yield return(op1);
m_DescOffer = op1.Desc;
var op2 = peer1.SetLocalDescription(ref m_DescOffer);
yield return(op2);
var op3 = peer2.SetRemoteDescription(ref m_DescOffer);
yield return(op3);
RTCAnswerOptions answerOptions = new RTCAnswerOptions();
var op4 = peer2.CreateAnswer(ref answerOptions);
yield return(op4);
m_DescAnswer = op4.Desc;
var op5 = peer2.SetLocalDescription(ref m_DescAnswer);
yield return(op5);
var op6 = peer1.SetRemoteDescription(ref m_DescAnswer);
yield return(op6);
yield return(new WaitUntil(() => candidate_ != null));
m_candidate = candidate_;
stream.Dispose();
peer1.Close();
peer2.Close();
m_Context = SynchronizationContext.Current;
signaling1 = CreateSignaling(m_SignalingType, m_Context);
signaling2 = CreateSignaling(m_SignalingType, m_Context);
}
IEnumerator SendAnswerCoroutine(string connectionId, RTCPeerConnection pc)
{
RTCAnswerOptions options = default;
var op = pc.CreateAnswer(ref options);
yield return(op);
if (op.IsError)
{
Debug.LogError($"Network Error: {op.Error.message}");
yield break;
}
var desc = op.Desc;
var opLocalDesc = pc.SetLocalDescription(ref desc);
yield return(opLocalDesc);
if (opLocalDesc.IsError)
{
Debug.LogError($"Network Error: {opLocalDesc.Error.message}");
yield break;
}
_signaling.SendAnswer(connectionId, desc);
}
public IEnumerator CurrentDirection()
{
var config = GetConfiguration();
var peer1 = new RTCPeerConnection(ref config);
var peer2 = new RTCPeerConnection(ref config);
var audioTrack = new AudioStreamTrack("audio");
var transceiver1 = peer1.AddTransceiver(TrackKind.Audio);
transceiver1.Direction = RTCRtpTransceiverDirection.RecvOnly;
Assert.IsNull(transceiver1.CurrentDirection);
RTCOfferOptions options1 = new RTCOfferOptions {
offerToReceiveAudio = true
};
RTCAnswerOptions options2 = default;
var op1 = peer1.CreateOffer(ref options1);
yield return(op1);
var desc = op1.Desc;
var op2 = peer1.SetLocalDescription(ref desc);
yield return(op2);
var op3 = peer2.SetRemoteDescription(ref desc);
yield return(op3);
var transceiver2 = peer2.GetTransceivers().First(x => x.Receiver.Track.Kind == TrackKind.Audio);
Assert.True(transceiver2.Sender.ReplaceTrack(audioTrack));
transceiver2.Direction = RTCRtpTransceiverDirection.SendOnly;
var op4 = peer2.CreateAnswer(ref options2);
yield return(op4);
desc = op4.Desc;
var op5 = peer2.SetLocalDescription(ref desc);
yield return(op5);
var op6 = peer1.SetRemoteDescription(ref desc);
yield return(op6);
Assert.AreEqual(transceiver1.CurrentDirection, RTCRtpTransceiverDirection.RecvOnly);
Assert.AreEqual(transceiver2.CurrentDirection, RTCRtpTransceiverDirection.SendOnly);
audioTrack.Dispose();
peer1.Close();
peer2.Close();
peer1.Dispose();
peer2.Dispose();
}
IEnumerator Negotiate(RTCPeerConnection peer1, RTCPeerConnection peer2)
{
if (negotiating)
{
Debug.LogError("Negotiating");
yield break;
}
negotiating = true;
var op1 = peer1.CreateOffer();
yield return(op1);
Assert.That(op1.IsError, Is.False, op1.Error.message);
var desc = op1.Desc;
var op2 = peer1.SetLocalDescription(ref desc);
yield return(op2);
Assert.That(op2.IsError, Is.False, op2.Error.message);
var op3 = peer2.SetRemoteDescription(ref desc);
yield return(op3);
Assert.That(op3.IsError, Is.False, op3.Error.message);
var op4 = peer2.CreateAnswer();
yield return(op4);
Assert.That(op4.IsError, Is.False, op4.Error.message);
desc = op4.Desc;
var op5 = peer2.SetLocalDescription(ref desc);
yield return(op5);
Assert.That(op5.IsError, Is.False, op5.Error.message);
var op6 = peer1.SetRemoteDescription(ref desc);
yield return(op6);
Assert.That(op6.IsError, Is.False, op6.Error.message);
var op7 = new WaitUntilWithTimeout(() =>
peers[0].SignalingState == RTCSignalingState.Stable &&
peers[1].SignalingState == RTCSignalingState.Stable, 5000);
yield return(op7);
Assert.That(op7.IsCompleted, Is.True);
IsTestFinished = true;
negotiating = false;
}
private static IEnumerator SignalingPeers(RTCPeerConnection offerPc, RTCPeerConnection answerPc)
{
offerPc.OnIceCandidate = candidate => answerPc.AddIceCandidate(ref candidate);
answerPc.OnIceCandidate = candidate => offerPc.AddIceCandidate(ref candidate);
var offerOption = new RTCOfferOptions {offerToReceiveVideo = true};
var answerOption = new RTCAnswerOptions {iceRestart = false};
var pc1CreateOffer = offerPc.CreateOffer(ref offerOption);
yield return pc1CreateOffer;
Assert.False(pc1CreateOffer.IsError);
var offerDesc = pc1CreateOffer.Desc;
var pc1SetLocalDescription = offerPc.SetLocalDescription(ref offerDesc);
yield return pc1SetLocalDescription;
Assert.False(pc1SetLocalDescription.IsError);
var pc2SetRemoteDescription = answerPc.SetRemoteDescription(ref offerDesc);
yield return pc2SetRemoteDescription;
Assert.False(pc2SetRemoteDescription.IsError);
var pc2CreateAnswer = answerPc.CreateAnswer(ref answerOption);
yield return pc2CreateAnswer;
Assert.False(pc2CreateAnswer.IsError);
var answerDesc = pc2CreateAnswer.Desc;
var pc2SetLocalDescription = answerPc.SetLocalDescription(ref answerDesc);
yield return pc2SetLocalDescription;
Assert.False(pc2SetLocalDescription.IsError);
var pc1SetRemoteDescription = offerPc.SetRemoteDescription(ref answerDesc);
yield return pc1SetRemoteDescription;
Assert.False(pc1SetRemoteDescription.IsError);
var waitConnectOfferPc = new WaitUntilWithTimeout(() =>
offerPc.IceConnectionState == RTCIceConnectionState.Connected ||
offerPc.IceConnectionState == RTCIceConnectionState.Completed, 5000);
yield return waitConnectOfferPc;
Assert.True(waitConnectOfferPc.IsCompleted);
var waitConnectAnswerPc = new WaitUntilWithTimeout(() =>
answerPc.IceConnectionState == RTCIceConnectionState.Connected ||
answerPc.IceConnectionState == RTCIceConnectionState.Completed, 5000);
yield return waitConnectAnswerPc;
Assert.True(waitConnectAnswerPc.IsCompleted);
var checkSenders = new WaitUntilWithTimeout(() => offerPc.GetSenders().Any(), 5000);
yield return checkSenders;
Assert.True(checkSenders.IsCompleted);
var checkReceivers = new WaitUntilWithTimeout(() => answerPc.GetReceivers().Any(), 5000);
yield return checkReceivers;
Assert.True(checkReceivers.IsCompleted);
}
IEnumerator OnOffer(ISignaling signaling, DescData e)
{
var connectionId = e.connectionId;
RTCPeerConnection pc = null;
if (!m_mapConnectionIdAndPeer.TryGetValue(connectionId, out pc))
{
pc = CreatePeerConnection(signaling, connectionId, false);
}
RTCSessionDescription _desc;
_desc.type = RTCSdpType.Offer;
_desc.sdp = e.sdp;
var opRemoteDesc = pc.SetRemoteDescription(ref _desc);
yield return(opRemoteDesc);
if (opRemoteDesc.IsError)
{
Debug.LogError($"Network Error: {opRemoteDesc.Error.message}");
yield break;
}
AddTracks(connectionId, pc);
RTCAnswerOptions options = default;
var op = pc.CreateAnswer(ref options);
yield return(op);
if (op.IsError)
{
Debug.LogError($"Network Error: {op.Error.message}");
yield break;
}
var desc = op.Desc;
var opLocalDesc = pc.SetLocalDescription(ref desc);
yield return(opLocalDesc);
if (opLocalDesc.IsError)
{
Debug.LogError($"Network Error: {opLocalDesc.Error.message}");
yield break;
}
signaling.SendAnswer(connectionId, desc);
}
private IEnumerator sendDesc(RTCSdpType type)
{
RTCSessionDescriptionAsyncOperation opCreate = null;
if (type == RTCSdpType.Offer)
{
OnLogEvent.Invoke("CreateOffer()", "");
opCreate = peer.CreateOffer(ref offerOption);
}
else
{
OnLogEvent.Invoke("CreateAnswer()", "");
opCreate = peer.CreateAnswer(ref answerOptions);
}
yield return(opCreate);
if (opCreate.IsError)
{
OnErrorEvent.Invoke($"Create {opCreate.Desc.type}", opCreate.Error.message);
yield break;
}
else
{
OnLogEvent.Invoke($"Create {opCreate.Desc.type}", "");
}
if (opCreate.Desc.sdp == null)
{
OnErrorEvent.Invoke("opCreate.Desc.sdp is null", "");
yield break;
}
else
{
OnLogEvent.Invoke($"SetLocalDescription {type}", $"{opCreate.Desc.sdp.Substring(0, 10)} ...");
}
var desc = opCreate.Desc;
var opSet = peer.SetLocalDescription(ref desc);
yield return(opSet);
if (opSet.IsError)
{
OnErrorEvent.Invoke($"SetLocalDescription {type}", opSet.Error.message);
yield break;
}
OnLogEvent.Invoke($"Send {type}", "");
signaling.SendDesc(streamId, desc.type.ToString().ToLower(), desc.sdp);
}
private IEnumerator createDesc(RTCSdpType type)
{
RTCSessionDescriptionAsyncOperation opCreate;
if (type == RTCSdpType.Offer)
{
opCreate = peer.CreateOffer(ref offerOptions);
}
else
{
opCreate = peer.CreateAnswer(ref answerOptions);
}
yield return(opCreate);
if (opCreate.IsError)
{
log(LogLevel.Error, $"Create {opCreate.Desc.type}: {opCreate.Error.message}");
yield break;
}
else
{
log(LogLevel.Log, $"Create {opCreate.Desc.type}");
}
if (opCreate.Desc.sdp == null)
{
log(LogLevel.Error, $"opCreate.Desc.sdp is null");
yield break;
}
else
{
log(LogLevel.Log, $"SetLocalDescription {type}: {opCreate.Desc.sdp}");
}
var desc = opCreate.Desc;
var opSet = peer.SetLocalDescription(ref desc);
yield return(opSet);
if (opSet.IsError)
{
log(LogLevel.Error, $"SetLocalDescription {type}: {opSet.Error.message}");
yield break;
}
log(LogLevel.Log, $">>> Send \"takeConfiguration\" Command ({type}: '{desc.sdp.Substring(0, 10)} ...')");
signaling.SendDesc(streamId, desc.type.ToString().ToLower(), desc.sdp);
}
private async void NewElement_AnswerRequested(object sender, SdpEventArgs e)
{
await _peerConnection.SetRemoteDescription(e.Sdp.ToRTCSessionDescription());
Debug.WriteLine("AnswerRequested SetRemoteDescription complete");
var answerDesc = await _peerConnection.CreateAnswer();
Debug.WriteLine("AnswerRequested CreateAnswer complete");
await _peerConnection.SetLocalDescription(answerDesc);
Debug.WriteLine("AnswerRequested SetLocalDescription complete");
Element.SendAnswerRecived(answerDesc.ToWebRTCSDP());
}
IEnumerator CreateAnswer()
{
Debug.Log("CreateAnswer start");
var op = peerConnection.CreateAnswer(ref _answerOptions);
yield return(op);
if (!op.IsError)
{
yield return(StartCoroutine(OnCreateAnswerSuccess(op.Desc)));
}
else
{
OnCreateSessionDescriptionError(op.Error);
}
}
public IEnumerator SetRemoteDescription()
{
var config = GetConfiguration();
var peer1 = new RTCPeerConnection(ref config);
var peer2 = new RTCPeerConnection(ref config);
var conf = new RTCDataChannelInit(true);
var channel1 = peer1.CreateDataChannel("data", ref conf);
RTCOfferOptions options1 = default;
RTCAnswerOptions options2 = default;
var op1 = peer1.CreateOffer(ref options1);
yield return(op1);
var desc = op1.Desc;
var op2 = peer1.SetLocalDescription(ref desc);
yield return(op2);
var op3 = peer2.SetRemoteDescription(ref desc);
yield return(op3);
var op4 = peer2.CreateAnswer(ref options2);
yield return(op4);
desc = op4.Desc;
var op5 = peer2.SetLocalDescription(ref desc);
yield return(op5);
var op6 = peer1.SetRemoteDescription(ref desc);
yield return(op6);
var desc2 = peer1.RemoteDescription;
Assert.AreEqual(desc.sdp, desc2.sdp);
Assert.AreEqual(desc.type, desc2.type);
channel1.Dispose();
peer1.Close();
peer2.Close();
peer1.Dispose();
peer2.Dispose();
}
public IEnumerator CreateAnswerFailed()
{
var config = GetConfiguration();
var peer = new RTCPeerConnection(ref config);
RTCAnswerOptions options = default;
var op = peer.CreateAnswer(ref options);
yield return(op);
Assert.True(op.IsDone);
// This is failed
Assert.True(op.IsError);
peer.Close();
peer.Dispose();
}
public IEnumerator CreateAnswerFailed()
{
var config = GetDefaultConfiguration();
var peer = new RTCPeerConnection(ref config);
var op = peer.CreateAnswer();
yield return(op);
Assert.True(op.IsDone);
// This is failed
Assert.True(op.IsError);
Assert.IsNotEmpty(op.Error.message);
peer.Close();
peer.Dispose();
}
public IEnumerator PeerConnection_SetRemoteDescription()
{
RTCConfiguration config = default;
config.iceServers = new[] { new RTCIceServer {
urls = new[] { "stun:stun.l.google.com:19302" }
} };
var peer1 = new RTCPeerConnection(ref config);
var peer2 = new RTCPeerConnection(ref config);
RTCDataChannel channel1 = null;
var conf = new RTCDataChannelInit(true);
channel1 = peer1.CreateDataChannel("data", ref conf);
RTCOfferOptions options1 = default;
RTCAnswerOptions options2 = default;
var op1 = peer1.CreateOffer(ref options1);
yield return(op1);
var op2 = peer1.SetLocalDescription(ref op1.desc);
yield return(op2);
var op3 = peer2.SetRemoteDescription(ref op1.desc);
yield return(op3);
var op4 = peer2.CreateAnswer(ref options2);
yield return(op4);
var op5 = peer2.SetLocalDescription(ref op4.desc);
yield return(op5);
var op6 = peer1.SetRemoteDescription(ref op4.desc);
yield return(op6);
channel1.Dispose();
peer1.Dispose();
peer2.Dispose();
}
IEnumerator CreateAnswer()
{
if (_rtcType != RTCTYPE.ANSWER)
{
yield break;
}
//アンサー
var op4 = localConnection.CreateAnswer(ref AnswerOptions);
yield return(op4);
var op5 = localConnection.SetLocalDescription(ref op4.desc);
yield return(op5);
//TextSDP(op4.desc, _mySDPText);
SendSDP(op4.desc, NCMBStateData.MyNCMBstate.SENDED_answer);
Debug.Log("create answer");
}
private IEnumerator SignalingOffer(RTCPeerConnection @from, RTCPeerConnection to)
{
var op1 = @from.CreateOffer();
yield return(op1);
var desc = op1.Desc;
var op2 = @from.SetLocalDescription(ref desc);
yield return(op2);
var op3 = to.SetRemoteDescription(ref desc);
yield return(op3);
var op4 = to.CreateAnswer();
yield return(op4);
desc = op4.Desc;
var op5 = to.SetLocalDescription(ref desc);
yield return(op5);
var op6 = @from.SetRemoteDescription(ref desc);
yield return(op6);
var op7 = new WaitUntilWithTimeout(
() => @from.IceConnectionState == RTCIceConnectionState.Connected ||
@from.IceConnectionState == RTCIceConnectionState.Completed, 5000);
yield return(op7);
Assert.That(op7.IsCompleted, Is.True);
var op8 = new WaitUntilWithTimeout(
() => to.IceConnectionState == RTCIceConnectionState.Connected ||
to.IceConnectionState == RTCIceConnectionState.Completed, 5000);
yield return(op8);
Assert.That(op8.IsCompleted, Is.True);
}
private static IEnumerator NegotiationPeer(RTCPeerConnection localPeer, RTCPeerConnection remotePeer)
{
var opCreateOffer = localPeer.CreateOffer();
yield return(opCreateOffer);
if (opCreateOffer.IsError)
{
OnCreateSessionDescriptionError(opCreateOffer.Error);
yield break;
}
var offerDesc = opCreateOffer.Desc;
yield return(localPeer.SetLocalDescription(ref offerDesc));
Debug.Log($"Offer from LocalPeer \n {offerDesc.sdp}");
yield return(remotePeer.SetRemoteDescription(ref offerDesc));
var opCreateAnswer = remotePeer.CreateAnswer();
yield return(opCreateAnswer);
if (opCreateAnswer.IsError)
{
OnCreateSessionDescriptionError(opCreateAnswer.Error);
yield break;
}
var answerDesc = opCreateAnswer.Desc;
yield return(remotePeer.SetLocalDescription(ref answerDesc));
Debug.Log($"Answer from RemotePeer \n {answerDesc.sdp}");
yield return(localPeer.SetRemoteDescription(ref answerDesc));
}
public void MessageFromPeerTaskRun(int peerId, string content)
{
PeerId = peerId;
Task.Run(async() =>
{
Debug.Assert(_peerId == PeerId || _peerId == -1);
Debug.Assert(content.Length > 0);
if (_peerId != PeerId && _peerId != -1)
{
Debug.WriteLine("Received a message from unknown peer " +
"while already in a conversation with a different peer.");
return;
}
if (!JsonObject.TryParse(content, out JsonObject jMessage))
{
Debug.WriteLine($"Received unknown message: {content}");
return;
}
string type = jMessage.ContainsKey(NegotiationAtributes.Type)
? jMessage.GetNamedString(NegotiationAtributes.Type)
: null;
if (PeerConnection == null)
{
if (!string.IsNullOrEmpty(type))
{
// Create the peer connection only when call is
// about to get initiated. Otherwise ignore the
// message from peers which could be result
// of old (but not yet fully closed) connections.
if (type == "offer" || type == "answer" || type == "json")
{
Debug.Assert(_peerId == -1);
_peerId = PeerId;
if (!CreatePeerConnection())
{
Debug.WriteLine("Failed to initialize our PeerConnection instance");
OnSignedOut.Invoke(this, null);
return;
}
else if (_peerId != PeerId)
{
Debug.WriteLine("Received a message from unknown peer while already " +
"in a conversation with a different peer.");
return;
}
}
}
else
{
Debug.WriteLine("[Warn] Received an untyped message after closing peer connection.");
return;
}
}
if (PeerConnection != null && !string.IsNullOrEmpty(type))
{
if (type == "offer-loopback")
{
// Loopback not supported
Debug.Assert(false);
}
string sdp = null;
sdp = jMessage.ContainsKey(NegotiationAtributes.Sdp)
? jMessage.GetNamedString(NegotiationAtributes.Sdp)
: null;
if (string.IsNullOrEmpty(sdp))
{
Debug.WriteLine("[Error] Can't parse received session description message.");
return;
}
Debug.WriteLine($"Received session description:\n{content}");
RTCSdpType messageType = RTCSdpType.Offer;
switch (type)
{
case "offer": messageType = RTCSdpType.Offer; break;
case "answer": messageType = RTCSdpType.Answer; break;
case "pranswer": messageType = RTCSdpType.Pranswer; break;
default: Debug.Assert(false, type); break;
}
var sdpInit = new RTCSessionDescriptionInit();
sdpInit.Sdp = sdp;
sdpInit.Type = messageType;
var description = new RTCSessionDescription(sdpInit);
await PeerConnection.SetRemoteDescription(description);
if (messageType == RTCSdpType.Offer)
{
var answerOptions = new RTCAnswerOptions();
IRTCSessionDescription answer = await PeerConnection.CreateAnswer(answerOptions);
await PeerConnection.SetLocalDescription(answer);
string jsonString = SdpToJsonString(answer);
// Send answer
OnSendMessageToRemotePeer.Invoke(this, jsonString);
}
}
else
{
RTCIceCandidate candidate = null;
string sdpMid = jMessage.ContainsKey(NegotiationAtributes.SdpMid)
? jMessage.GetNamedString(NegotiationAtributes.SdpMid)
: null;
double sdpMLineIndex = jMessage.ContainsKey(NegotiationAtributes.SdpMLineIndex)
? jMessage.GetNamedNumber(NegotiationAtributes.SdpMLineIndex)
: -1;
string sdpCandidate = jMessage.ContainsKey(NegotiationAtributes.Candidate)
? jMessage.GetNamedString(NegotiationAtributes.Candidate)
: null;
if (string.IsNullOrEmpty(sdpMid) || sdpMLineIndex == -1 || string.IsNullOrEmpty(sdpCandidate))
{
Debug.WriteLine($"[Error] Can't parse received message.\n{content}");
return;
}
var candidateInit = new RTCIceCandidateInit();
candidateInit.Candidate = sdpCandidate;
candidateInit.SdpMid = sdpMid;
candidateInit.SdpMLineIndex = (ushort)sdpMLineIndex;
candidate = new RTCIceCandidate(candidateInit);
await PeerConnection.AddIceCandidate(candidate);
Debug.WriteLine($"Receiving ice candidate:\n{content}");
}
}).Wait();
}
public IEnumerator Signaling()
{
offerPc.OnIceCandidate = candidate => answerPc.AddIceCandidate(candidate);
answerPc.OnIceCandidate = candidate => offerPc.AddIceCandidate(candidate);
var pc1CreateOffer = offerPc.CreateOffer();
yield return(pc1CreateOffer);
Assert.That(pc1CreateOffer.IsError, Is.False, () => $"Failed {nameof(pc1CreateOffer)}, error:{pc1CreateOffer.Error.message}");
var offerDesc = pc1CreateOffer.Desc;
var pc1SetLocalDescription = offerPc.SetLocalDescription(ref offerDesc);
yield return(pc1SetLocalDescription);
Assert.That(pc1SetLocalDescription.IsError, Is.False, () => $"Failed {nameof(pc1SetLocalDescription)}, error:{pc1SetLocalDescription.Error.message}");
var pc2SetRemoteDescription = answerPc.SetRemoteDescription(ref offerDesc);
yield return(pc2SetRemoteDescription);
Assert.That(pc2SetRemoteDescription.IsError, Is.False, () => $"Failed {nameof(pc2SetRemoteDescription)}, error:{pc2SetRemoteDescription.Error.message}");
var pc2CreateAnswer = answerPc.CreateAnswer();
yield return(pc2CreateAnswer);
Assert.That(pc2CreateAnswer.IsError, Is.False, () => $"Failed {nameof(pc2CreateAnswer)}, error:{pc2CreateAnswer.Error.message}");
var answerDesc = pc2CreateAnswer.Desc;
var pc2SetLocalDescription = answerPc.SetLocalDescription(ref answerDesc);
yield return(pc2SetLocalDescription);
Assert.That(pc2SetLocalDescription.IsError, Is.False, () => $"Failed {nameof(pc2SetLocalDescription)}, error:{pc2SetLocalDescription.Error.message}");
var pc1SetRemoteDescription = offerPc.SetRemoteDescription(ref answerDesc);
yield return(pc1SetRemoteDescription);
Assert.That(pc1SetRemoteDescription.IsError, Is.False, () => $"Failed {nameof(pc1SetRemoteDescription)}, error:{pc1SetRemoteDescription.Error.message}");
var waitConnectOfferPc = new WaitUntilWithTimeout(() =>
offerPc.IceConnectionState == RTCIceConnectionState.Connected ||
offerPc.IceConnectionState == RTCIceConnectionState.Completed, 5000);
yield return(waitConnectOfferPc);
Assert.That(waitConnectOfferPc.IsCompleted, Is.True);
var waitConnectAnswerPc = new WaitUntilWithTimeout(() =>
answerPc.IceConnectionState == RTCIceConnectionState.Connected ||
answerPc.IceConnectionState == RTCIceConnectionState.Completed, 5000);
yield return(waitConnectAnswerPc);
Assert.That(waitConnectAnswerPc.IsCompleted, Is.True);
var checkSenders = new WaitUntilWithTimeout(() => offerPc.GetSenders().Any(), 5000);
yield return(checkSenders);
Assert.That(checkSenders.IsCompleted, Is.True);
var checkReceivers = new WaitUntilWithTimeout(() => answerPc.GetReceivers().Any(), 5000);
yield return(checkReceivers);
Assert.That(checkReceivers.IsCompleted, Is.True);
}
public IEnumerator IceConnectionStateChange()
{
RTCConfiguration config = default;
config.iceServers = new[] { new RTCIceServer {
urls = new[] { "stun:stun.l.google.com:19302" }
} };
var peer1 = new RTCPeerConnection(ref config);
var peer2 = new RTCPeerConnection(ref config);
peer1.OnIceCandidate = candidate => { peer2.AddIceCandidate(ref candidate); };
peer2.OnIceCandidate = candidate => { peer1.AddIceCandidate(ref candidate); };
MediaStream stream = Audio.CaptureStream();
peer1.AddTrack(stream.GetTracks().First());
RTCOfferOptions options1 = default;
RTCAnswerOptions options2 = default;
var op1 = peer1.CreateOffer(ref options1);
yield return(op1);
var desc = op1.Desc;
var op2 = peer1.SetLocalDescription(ref desc);
yield return(op2);
var op3 = peer2.SetRemoteDescription(ref desc);
yield return(op3);
var op4 = peer2.CreateAnswer(ref options2);
yield return(op4);
desc = op4.Desc;
var op5 = peer2.SetLocalDescription(ref desc);
yield return(op5);
var op6 = peer1.SetRemoteDescription(ref desc);
yield return(op6);
var op7 = new WaitUntilWithTimeout(
() => peer1.IceConnectionState == RTCIceConnectionState.Connected ||
peer1.IceConnectionState == RTCIceConnectionState.Completed, 5000);
yield return(op7);
Assert.True(op7.IsCompleted);
var op8 = new WaitUntilWithTimeout(
() => peer2.IceConnectionState == RTCIceConnectionState.Connected ||
peer2.IceConnectionState == RTCIceConnectionState.Completed, 5000);
yield return(op8);
Assert.True(op8.IsCompleted);
stream.Dispose();
peer1.Close();
peer2.Close();
}
void OnOffer(ISignaling signaling, DescData e)
{
RTCSessionDescription _desc;
_desc.type = RTCSdpType.Offer;
_desc.sdp = e.sdp;
var connectionId = e.connectionId;
if (m_mapConnectionIdAndPeer.ContainsKey(connectionId))
{
return;
}
var pc = new RTCPeerConnection();
m_mapConnectionIdAndPeer.Add(e.connectionId, pc);
pc.OnDataChannel = new DelegateOnDataChannel(channel => { OnDataChannel(pc, channel); });
pc.SetConfiguration(ref m_conf);
pc.OnIceCandidate = new DelegateOnIceCandidate(candidate =>
{
signaling.SendCandidate(e.connectionId, candidate);
});
pc.OnIceConnectionChange = new DelegateOnIceConnectionChange(state =>
{
if (state == RTCIceConnectionState.Disconnected)
{
pc.Close();
m_mapConnectionIdAndPeer.Remove(e.connectionId);
}
});
pc.SetRemoteDescription(ref _desc);
foreach (var track in m_listVideoStreamTrack.Concat(m_audioStream.GetTracks()))
{
RTCRtpSender sender = pc.AddTrack(track);
if (!m_mapTrackAndSenderList.TryGetValue(track, out List <RTCRtpSender> list))
{
list = new List <RTCRtpSender>();
m_mapTrackAndSenderList.Add(track, list);
}
list.Add(sender);
}
RTCAnswerOptions options = default;
var op = pc.CreateAnswer(ref options);
while (op.MoveNext())
{
}
if (op.IsError)
{
Debug.LogError($"Network Error: {op.Error}");
return;
}
var desc = op.Desc;
var opLocalDesc = pc.SetLocalDescription(ref desc);
while (opLocalDesc.MoveNext())
{
}
if (opLocalDesc.IsError)
{
Debug.LogError($"Network Error: {opLocalDesc.Error}");
return;
}
signaling.SendAnswer(connectionId, desc);
}
void OnOffer(ISignaling signaling, DescData e)
{
RTCSessionDescription _desc;
_desc.type = RTCSdpType.Offer;
_desc.sdp = e.sdp;
var connectionId = e.connectionId;
if (m_mapConnectionIdAndPeer.ContainsKey(connectionId))
{
return;
}
var pc = new RTCPeerConnection();
m_mapConnectionIdAndPeer.Add(e.connectionId, pc);
pc.OnDataChannel = new DelegateOnDataChannel(channel => { OnDataChannel(pc, channel); });
pc.SetConfiguration(ref m_conf);
pc.OnIceCandidate = new DelegateOnIceCandidate(candidate =>
{
signaling.SendCandidate(e.connectionId, candidate);
});
pc.OnIceConnectionChange = new DelegateOnIceConnectionChange(state =>
{
if (state == RTCIceConnectionState.Disconnected)
{
pc.Close();
m_mapConnectionIdAndPeer.Remove(e.connectionId);
}
});
//make video bit rate starts at 16000kbits, and 160000kbits at max.
string pattern = @"(a=fmtp:\d+ .*level-asymmetry-allowed=.*)\r\n";
_desc.sdp = Regex.Replace(_desc.sdp, pattern, "$1;x-google-start-bitrate=16000;x-google-max-bitrate=160000\r\n");
pc.SetRemoteDescription(ref _desc);
foreach (var track in m_listVideoStreamTrack)
{
pc.AddTrack(track);
}
foreach (var track in m_audioStream.GetTracks())
{
pc.AddTrack(track);
}
RTCAnswerOptions options = default;
var op = pc.CreateAnswer(ref options);
while (op.MoveNext())
{
}
if (op.IsError)
{
Debug.LogError($"Network Error: {op.Error}");
return;
}
var desc = op.Desc;
var opLocalDesc = pc.SetLocalDescription(ref desc);
while (opLocalDesc.MoveNext())
{
}
if (opLocalDesc.IsError)
{
Debug.LogError($"Network Error: {opLocalDesc.Error}");
return;
}
signaling.SendAnswer(connectionId, desc);
}
public IEnumerator EventsAreSentToOther()
{
RTCConfiguration config = default;
config.iceServers = new[] { new RTCIceServer {
urls = new[] { "stun:stun.l.google.com:19302" }
} };
var peer1 = new RTCPeerConnection(ref config);
var peer2 = new RTCPeerConnection(ref config);
RTCDataChannel channel2 = null;
peer1.OnIceCandidate = candidate => { peer2.AddIceCandidate(candidate); };
peer2.OnIceCandidate = candidate => { peer1.AddIceCandidate(candidate); };
peer2.OnDataChannel = channel => { channel2 = channel; };
var channel1 = peer1.CreateDataChannel("data");
bool channel1Opened = false;
bool channel1Closed = false;
channel1.OnOpen = () => { channel1Opened = true; };
channel1.OnClose = () => { channel1Closed = true; };
RTCOfferOptions options1 = default;
RTCAnswerOptions options2 = default;
var op1 = peer1.CreateOffer(ref options1);
yield return(op1);
var desc = op1.Desc;
var op2 = peer1.SetLocalDescription(ref desc);
yield return(op2);
var op3 = peer2.SetRemoteDescription(ref desc);
yield return(op3);
var op4 = peer2.CreateAnswer(ref options2);
yield return(op4);
desc = op4.Desc;
var op5 = peer2.SetLocalDescription(ref desc);
yield return(op5);
var op6 = peer1.SetRemoteDescription(ref desc);
yield return(op6);
var op7 = new WaitUntilWithTimeout(
() => peer1.IceConnectionState == RTCIceConnectionState.Connected ||
peer1.IceConnectionState == RTCIceConnectionState.Completed, 5000);
yield return(op7);
Assert.True(op7.IsCompleted);
var op8 = new WaitUntilWithTimeout(
() => peer2.IceConnectionState == RTCIceConnectionState.Connected ||
peer2.IceConnectionState == RTCIceConnectionState.Completed, 5000);
yield return(op8);
Assert.True(op8.IsCompleted);
var op9 = new WaitUntilWithTimeout(() => channel2 != null, 5000);
yield return(op9);
Assert.True(op9.IsCompleted);
Assert.True(channel1Opened);
Assert.AreEqual(channel1.Label, channel2.Label);
Assert.AreEqual(channel1.Id, channel2.Id);
const string message1 = "hello";
string message2 = null;
channel2.OnMessage = bytes => { message2 = System.Text.Encoding.UTF8.GetString(bytes); };
channel1.Send(message1);
var op10 = new WaitUntilWithTimeout(() => !string.IsNullOrEmpty(message2), 5000);
yield return(op10);
Assert.True(op10.IsCompleted);
Assert.AreEqual(message1, message2);
byte[] message3 = { 1, 2, 3 };
byte[] message4 = null;
channel2.OnMessage = bytes => { message4 = bytes; };
channel1.Send(message3);
var op11 = new WaitUntilWithTimeout(() => message4 != null, 5000);
yield return(op11);
Assert.True(op11.IsCompleted);
Assert.AreEqual(message3, message4);
channel1.Close();
var op12 = new WaitUntilWithTimeout(() => channel1Closed, 5000);
yield return(op12);
Assert.True(op12.IsCompleted);
channel2.Close();
peer1.Close();
peer2.Close();
}
IEnumerator CreateDescription(RTCSdpType type)
{
Debug.Log($"[Create {type}]");
var op = type == RTCSdpType.Offer ? localConnection.CreateOffer(ref offerOption) : localConnection.CreateAnswer(ref answerOptions);
yield return(op);
if (op.IsError)
{
Debug.LogError(op.Error.message);
}
else
{
yield return(SetDescription(op.Desc, Side.Local));
}
}
public IEnumerator AddIceCandidate()
{
RTCConfiguration config = default;
config.iceServers = new[] { new RTCIceServer {
urls = new[] { "stun:stun.l.google.com:19302" }
} };
var peer1 = new RTCPeerConnection(ref config);
var peer2 = new RTCPeerConnection(ref config);
var peer1ReceiveCandidateQueue = new Queue <RTCIceCandidate>();
var peer2ReceiveCandidateQueue = new Queue <RTCIceCandidate>();
peer1.OnIceCandidate = candidate => { peer2ReceiveCandidateQueue.Enqueue(candidate); };
peer2.OnIceCandidate = candidate => { peer1ReceiveCandidateQueue.Enqueue(candidate); };
var obj = new GameObject("audio");
var source = obj.AddComponent <AudioSource>();
source.clip = AudioClip.Create("test", 480, 2, 48000, false);
var track = new AudioStreamTrack(source);
peer1.AddTrack(track);
var op1 = peer1.CreateOffer();
yield return(op1);
var desc = op1.Desc;
var op2 = peer1.SetLocalDescription(ref desc);
yield return(op2);
yield return(new WaitUntil(() => peer2ReceiveCandidateQueue.Any()));
Assert.That(peer2.AddIceCandidate(peer2ReceiveCandidateQueue.Peek()), Is.False);
var op3 = peer2.SetRemoteDescription(ref desc);
yield return(op3);
Assert.That(peer2.AddIceCandidate(peer2ReceiveCandidateQueue.Dequeue()), Is.True);
var op4 = peer2.CreateAnswer();
yield return(op4);
desc = op4.Desc;
var op5 = peer2.SetLocalDescription(ref desc);
yield return(op5);
yield return(new WaitUntil(() => peer1ReceiveCandidateQueue.Any()));
Assert.That(peer1.AddIceCandidate(peer1ReceiveCandidateQueue.Peek()), Is.False);
var op6 = peer1.SetRemoteDescription(ref desc);
yield return(op6);
Assert.That(peer1.AddIceCandidate(peer1ReceiveCandidateQueue.Dequeue()), Is.True);
var op7 = new WaitUntilWithTimeout(
() => peer1.IceConnectionState == RTCIceConnectionState.Connected ||
peer1.IceConnectionState == RTCIceConnectionState.Completed, 5000);
yield return(op7);
Assert.That(op7.IsCompleted, Is.True);
var op8 = new WaitUntilWithTimeout(
() => peer2.IceConnectionState == RTCIceConnectionState.Connected ||
peer2.IceConnectionState == RTCIceConnectionState.Completed, 5000);
yield return(op8);
Assert.That(op8.IsCompleted, Is.True);
foreach (var candidate in peer1ReceiveCandidateQueue)
{
Assert.That(peer1.AddIceCandidate(candidate), Is.True);
}
peer1ReceiveCandidateQueue.Clear();
foreach (var candidate in peer2ReceiveCandidateQueue)
{
Assert.That(peer2.AddIceCandidate(candidate), Is.True);
}
peer2ReceiveCandidateQueue.Clear();
track.Dispose();
peer1.Close();
peer2.Close();
Object.DestroyImmediate(source.clip);
Object.DestroyImmediate(obj);
}
public IEnumerator PeerConnectionStateChange()
{
RTCConfiguration config = default;
config.iceServers = new[] { new RTCIceServer {
urls = new[] { "stun:stun.l.google.com:19302" }
} };
var peer1 = new RTCPeerConnection(ref config);
var peer2 = new RTCPeerConnection(ref config);
RTCPeerConnectionState state1 = default;
RTCPeerConnectionState state2 = default;
RTCIceConnectionState iceState1 = default;
RTCIceConnectionState iceState2 = default;
peer1.OnIceCandidate = candidate => { peer2.AddIceCandidate(candidate); };
peer2.OnIceCandidate = candidate => { peer1.AddIceCandidate(candidate); };
peer1.OnConnectionStateChange = state => { state1 = state; };
peer2.OnConnectionStateChange = state => { state2 = state; };
peer1.OnIceConnectionChange = state => { iceState1 = state; };
peer2.OnIceConnectionChange = state => { iceState2 = state; };
Assert.That(state1, Is.EqualTo(RTCPeerConnectionState.New));
Assert.That(state2, Is.EqualTo(RTCPeerConnectionState.New));
var obj = new GameObject("audio");
var source = obj.AddComponent <AudioSource>();
source.clip = AudioClip.Create("test", 480, 2, 48000, false);
AudioStreamTrack track1 = new AudioStreamTrack(source);
peer1.AddTrack(track1);
var op1 = peer1.CreateOffer();
yield return(op1);
var desc = op1.Desc;
var op2 = peer1.SetLocalDescription(ref desc);
yield return(op2);
var op3 = peer2.SetRemoteDescription(ref desc);
yield return(op3);
var op4 = peer2.CreateAnswer();
yield return(op4);
desc = op4.Desc;
var op5 = peer2.SetLocalDescription(ref desc);
yield return(op5);
var op6 = peer1.SetRemoteDescription(ref desc);
yield return(op6);
var op7 = new WaitUntilWithTimeout(() =>
state1 == RTCPeerConnectionState.Connected &&
state2 == RTCPeerConnectionState.Connected, 5000);
yield return(op7);
Assert.That(op7.IsCompleted, Is.True);
var op8 = new WaitUntilWithTimeout(() =>
(iceState1 == RTCIceConnectionState.Connected || iceState1 == RTCIceConnectionState.Completed) &&
(iceState2 == RTCIceConnectionState.Connected || iceState2 == RTCIceConnectionState.Completed)
, 5000);
yield return(op8);
Assert.That(op8.IsCompleted, Is.True);
peer1.Close();
var op9 = new WaitUntilWithTimeout(() =>
state1 == RTCPeerConnectionState.Closed &&
iceState2 == RTCIceConnectionState.Disconnected, 5000);
yield return(op9);
Assert.That(op9.IsCompleted, Is.True);
track1.Dispose();
peer2.Close();
Object.DestroyImmediate(source.clip);
Object.DestroyImmediate(obj);
}
/// <summary>
/// Handler for Signaller's OnMessageFromPeer event.
/// </summary>
/// <param name="peerId">ID of the peer.</param>
/// <param name="message">Message from the peer.</param>
private void Signaller_OnMessageFromPeer(int peerId, string message)
{
Task.Run(async() =>
{
Debug.Assert(_peerId == peerId || _peerId == -1);
Debug.Assert(message.Length > 0);
if (_peerId != peerId && _peerId != -1)
{
Debug.WriteLine("[Error] Conductor: Received a message from unknown peer while already in a conversation with a different peer.");
return;
}
JsonObject jMessage;
if (!JsonObject.TryParse(message, out jMessage))
{
Debug.WriteLine("[Error] Conductor: Received unknown message." + message);
return;
}
string type = jMessage.ContainsKey(kSessionDescriptionTypeName) ? jMessage.GetNamedString(kSessionDescriptionTypeName) : null;
#if ORTCLIB
bool created = false;
#endif
if (_peerConnection == null)
{
if (!IsNullOrEmpty(type))
{
// Create the peer connection only when call is
// about to get initiated. Otherwise ignore the
// messages from peers which could be a result
// of old (but not yet fully closed) connections.
if (type == "offer" || type == "answer" || type == "json")
{
Debug.Assert(_peerId == -1);
_peerId = peerId;
IEnumerable <Peer> enumerablePeer = Peers.Where(x => x.Id == peerId);
Peer = enumerablePeer.First();
#if ORTCLIB
created = true;
_signalingMode = Helper.SignalingModeForClientName(Peer.Name);
#endif
_connectToPeerCancelationTokenSource = new CancellationTokenSource();
_connectToPeerTask = CreatePeerConnection(_connectToPeerCancelationTokenSource.Token);
bool connectResult = await _connectToPeerTask;
_connectToPeerTask = null;
_connectToPeerCancelationTokenSource.Dispose();
if (!connectResult)
{
Debug.WriteLine("[Error] Conductor: Failed to initialize our PeerConnection instance");
await Signaller.SignOut();
return;
}
else if (_peerId != peerId)
{
Debug.WriteLine("[Error] Conductor: Received a message from unknown peer while already in a conversation with a different peer.");
return;
}
}
}
else
{
Debug.WriteLine("[Warn] Conductor: Received an untyped message after closing peer connection.");
return;
}
}
if (_peerConnection != null && !IsNullOrEmpty(type))
{
if (type == "offer-loopback")
{
// Loopback not supported
Debug.Assert(false);
}
string sdp = null;
#if ORTCLIB
if (jMessage.ContainsKey(kSessionDescriptionJsonName))
{
var containerObject = new JsonObject {
{ kSessionDescriptionJsonName, jMessage.GetNamedObject(kSessionDescriptionJsonName) }
};
sdp = containerObject.Stringify();
}
else if (jMessage.ContainsKey(kSessionDescriptionSdpName))
{
sdp = jMessage.GetNamedString(kSessionDescriptionSdpName);
}
#else
sdp = jMessage.ContainsKey(kSessionDescriptionSdpName) ? jMessage.GetNamedString(kSessionDescriptionSdpName) : null;
#endif
if (IsNullOrEmpty(sdp))
{
Debug.WriteLine("[Error] Conductor: Can't parse received session description message.");
return;
}
#if ORTCLIB
RTCSessionDescriptionSignalingType messageType = RTCSessionDescriptionSignalingType.SdpOffer;
switch (type)
{
case "json": messageType = RTCSessionDescriptionSignalingType.Json; break;
case "offer": messageType = RTCSessionDescriptionSignalingType.SdpOffer; break;
case "answer": messageType = RTCSessionDescriptionSignalingType.SdpAnswer; break;
case "pranswer": messageType = RTCSessionDescriptionSignalingType.SdpPranswer; break;
default: Debug.Assert(false, type); break;
}
#else
RTCSdpType messageType = RTCSdpType.Offer;
switch (type)
{
case "offer": messageType = RTCSdpType.Offer; break;
case "answer": messageType = RTCSdpType.Answer; break;
case "pranswer": messageType = RTCSdpType.Pranswer; break;
default: Debug.Assert(false, type); break;
}
#endif
Debug.WriteLine("Conductor: Received session description: " + message);
await _peerConnection.SetRemoteDescription(new RTCSessionDescription(messageType, sdp));
#if ORTCLIB
if ((messageType == RTCSessionDescriptionSignalingType.SdpOffer) ||
((created) && (messageType == RTCSessionDescriptionSignalingType.Json)))
#else
if (messageType == RTCSdpType.Offer)
#endif
{
var answer = await _peerConnection.CreateAnswer();
await _peerConnection.SetLocalDescription(answer);
// Send answer
SendSdp(answer);
#if ORTCLIB
OrtcStatsManager.Instance.StartCallWatch(SessionId, false);
#endif
}
}
else
{
RTCIceCandidate candidate = null;
#if ORTCLIB
if (RTCPeerConnectionSignalingMode.Json != _signalingMode)
#endif
{
var sdpMid = jMessage.ContainsKey(kCandidateSdpMidName)
? jMessage.GetNamedString(kCandidateSdpMidName)
: null;
var sdpMlineIndex = jMessage.ContainsKey(kCandidateSdpMlineIndexName)
? jMessage.GetNamedNumber(kCandidateSdpMlineIndexName)
: -1;
var sdp = jMessage.ContainsKey(kCandidateSdpName)
? jMessage.GetNamedString(kCandidateSdpName)
: null;
//TODO: Check is this proper condition ((String.IsNullOrEmpty(sdpMid) && (sdpMlineIndex == -1)) || String.IsNullOrEmpty(sdp))
if (IsNullOrEmpty(sdpMid) || sdpMlineIndex == -1 || IsNullOrEmpty(sdp))
{
Debug.WriteLine("[Error] Conductor: Can't parse received message.\n" + message);
return;
}
#if ORTCLIB
candidate = IsNullOrEmpty(sdpMid) ? RTCIceCandidate.FromSdpStringWithMLineIndex(sdp, (ushort)sdpMlineIndex) : RTCIceCandidate.FromSdpStringWithMid(sdp, sdpMid);
#else
candidate = new RTCIceCandidate(sdp, sdpMid, (ushort)sdpMlineIndex);
#endif
}
#if ORTCLIB
else
{
candidate = RTCIceCandidate.FromJsonString(message);
}
_peerConnection?.AddIceCandidate(candidate);
#else
await _peerConnection.AddIceCandidate(candidate);
#endif
Debug.WriteLine("Conductor: Received candidate : " + message);
}
}).Wait();
}
public IEnumerator DataChannel_EventsAreSentToOther()
{
RTCConfiguration config = default;
config.iceServers = new RTCIceServer[]
{
new RTCIceServer
{
urls = new string[] { "stun:stun.l.google.com:19302" }
}
};
var peer1 = new RTCPeerConnection(ref config);
var peer2 = new RTCPeerConnection(ref config);
RTCDataChannel channel1 = null, channel2 = null;
peer1.OnIceCandidate = new DelegateOnIceCandidate(candidate => { peer2.AddIceCandidate(ref candidate); });
peer2.OnIceCandidate = new DelegateOnIceCandidate(candidate => { peer1.AddIceCandidate(ref candidate); });
peer2.OnDataChannel = new DelegateOnDataChannel(channel => { channel2 = channel; });
var conf = new RTCDataChannelInit(true);
channel1 = peer1.CreateDataChannel("data", ref conf);
RTCOfferOptions options1 = default;
RTCAnswerOptions options2 = default;
var op1 = peer1.CreateOffer(ref options1);
yield return(op1);
var op2 = peer1.SetLocalDescription(ref op1.desc);
yield return(op2);
var op3 = peer2.SetRemoteDescription(ref op1.desc);
yield return(op3);
var op4 = peer2.CreateAnswer(ref options2);
yield return(op4);
var op5 = peer2.SetLocalDescription(ref op4.desc);
yield return(op5);
var op6 = peer1.SetRemoteDescription(ref op4.desc);
yield return(op6);
yield return(new WaitUntil(() => peer1.IceConnectionState == RTCIceConnectionState.Connected || peer1.IceConnectionState == RTCIceConnectionState.Completed));
yield return(new WaitUntil(() => peer2.IceConnectionState == RTCIceConnectionState.Connected || peer2.IceConnectionState == RTCIceConnectionState.Completed));
yield return(new WaitUntil(() => channel2 != null));
Assert.AreEqual(channel1.Label, channel2.Label);
Assert.AreEqual(channel1.Id, channel2.Id);
string message1 = "hello";
string message2 = null;
channel2.OnMessage = new DelegateOnMessage(bytes => { message2 = System.Text.Encoding.UTF8.GetString(bytes); });
channel1.Send(message1);
yield return(new WaitUntil(() => !string.IsNullOrEmpty(message2)));
Assert.AreEqual(message1, message2);
byte[] message3 = { 1, 2, 3 };
byte[] message4 = null;
channel2.OnMessage = new DelegateOnMessage(bytes => { message4 = bytes; });
channel1.Send(message3);
yield return(new WaitUntil(() => message4 != null));
Assert.AreEqual(message3, message4);
peer1.Close();
peer2.Close();
}