public void ParsePionDataChannelOnlyOfferSDPUnitTest()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
string sdpStr =
@"v=0
o=- 87119400 1595185172 IN IP4 0.0.0.0
s=-
t=0 0
a=fingerprint:sha-256 81:5C:47:85:9C:3D:CC:E6:B5:94:0B:3B:65:D5:39:1A:CD:8F:48:2D:78:0F:9F:0B:18:93:BF:C9:F6:C9:8E:F8
a=group:BUNDLE 0
m=application 9 DTLS/SCTP 5000
c=IN IP4 0.0.0.0
a=setup:active
a=mid:0
a=sendrecv
a=sctpmap:5000 webrtc-datachannel 1024";
SDP sdp = SDP.ParseSDPDescription(sdpStr);
logger.LogDebug(sdp.ToString());
SDP rndTripSdp = SDP.ParseSDPDescription(sdp.ToString());
Assert.Equal("BUNDLE 0", rndTripSdp.Group);
Assert.Single(rndTripSdp.Media);
Assert.Equal("sha-256 81:5C:47:85:9C:3D:CC:E6:B5:94:0B:3B:65:D5:39:1A:CD:8F:48:2D:78:0F:9F:0B:18:93:BF:C9:F6:C9:8E:F8", rndTripSdp.DtlsFingerprint);
Assert.Single(rndTripSdp.Media.Single().ApplicationMediaFormats);
Assert.Equal(5000, rndTripSdp.Media.Single().SctpPort.Value);
Assert.Equal(1024, rndTripSdp.Media.Single().MaxMessageSize);
}
public void ParseMediaFormatWithHyphenNameUnitTest()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
string sdpStr =
@"v=0
o=- 1970544282 0 IN IP4 127.0.0.1
s=-
c=IN IP4 10.10.1.8
t=0 0
m=audio 57982 RTP/AVP 0 8
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=sendrecv
m=video 57984 RTP/AVP 96
a=rtpmap:96 H263-1998/90000
a=fmtp:96 QCIF=3
a=sendrecv";
SDP sdp = SDP.ParseSDPDescription(sdpStr);
logger.LogDebug(sdp.ToString());
SDP rndTripSdp = SDP.ParseSDPDescription(sdp.ToString());
Assert.Equal(96, rndTripSdp.Media.Where(x => x.Media == SDPMediaTypesEnum.video).Single().MediaFormats.Single().Key);
Assert.Equal("H263-1998", rndTripSdp.Media.Where(x => x.Media == SDPMediaTypesEnum.video).Single().MediaFormats.Single().Value.Name());
}
public void ParseSDPUnitTest()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
string sdpStr =
"v=0" + m_CRLF +
"o=root 3285 3285 IN IP4 10.0.0.4" + m_CRLF +
"s=session" + m_CRLF +
"c=IN IP4 10.0.0.4" + m_CRLF +
"t=0 0" + m_CRLF +
"m=audio 12228 RTP/AVP 0 101" + m_CRLF +
"a=rtpmap:0 PCMU/8000" + m_CRLF +
"a=rtpmap:101 telephone-event/8000" + m_CRLF +
"a=fmtp:101 0-16" + m_CRLF +
"a=silenceSupp:off - - - -" + m_CRLF +
"a=ptime:20" + m_CRLF +
"a=sendrecv";
SDP sdp = SDP.ParseSDPDescription(sdpStr);
logger.LogDebug(sdp.ToString());
Assert.True(sdp.Connection.ConnectionAddress == "10.0.0.4", "The connection address was not parsed correctly.");
Assert.True(sdp.Media[0].Media == SDPMediaTypesEnum.audio, "The media type not parsed correctly.");
Assert.True(sdp.Media[0].Port == 12228, "The connection port was not parsed correctly.");
Assert.True(sdp.Media[0].GetFormatListToString() == "0 101", "The media format list was incorrect.");
Assert.True(sdp.Media[0].MediaFormats[0].ID == 0, "The highest priority media format ID was incorrect.");
Assert.True(sdp.Media[0].MediaFormats[0].Name() == "PCMU", "The highest priority media format name was incorrect.");
Assert.Equal(SDPWellKnownMediaFormatsEnum.PCMU.ToString(), sdp.Media[0].MediaFormats[0].Name());
Assert.True(sdp.Media[0].MediaFormats[0].Rtpmap == "PCMU/8000", "The highest priority media format rtpmap was incorrect.");
}
public void ParseBriaSDPUnitTest()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
string sdpStr =
"v=0" +
"o=- 5 2 IN IP4 10.1.1.2" + m_CRLF +
"s=CounterPath Bria" + m_CRLF +
"c=IN IP4 144.137.16.240" + m_CRLF +
"t=0 0" + m_CRLF +
"m=audio 34640 RTP/AVP 0 8 101" + m_CRLF +
"a=sendrecv" + m_CRLF +
"a=rtpmap:101 telephone-event/8000" + m_CRLF +
"a=fmtp:101 0-15" + m_CRLF +
"a=alt:1 1 : STu/ZtOu 7hiLQmUp 10.1.1.2 34640";
SDP sdp = SDP.ParseSDPDescription(sdpStr);
logger.LogDebug(sdp.ToString());
Assert.True(sdp.Connection.ConnectionAddress == "144.137.16.240", "The connection address was not parsed correctly.");
Assert.True(sdp.Media[0].Port == 34640, "The connection port was not parsed correctly.");
Assert.True(sdp.Media[0].MediaFormats[0].Name() == "PCMU", "The highest priority media format name was incorrect.");
Assert.Equal(SDPWellKnownMediaFormatsEnum.PCMU.ToString(), sdp.Media[0].MediaFormats[0].Name());
}
public void ParseMcpttTest()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
string sdpStr =
@"v=0
o=root 5936658357711814578 0 IN IP4 0.0.0.0
s=-
t=0 0
m=audio 55316 RTP/AVP 0 101
a=rtpmap:0 PCMU/8000
a=label:1
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
a=sendrecv
m=application 55317 udp MCPTT
a=fmtp:MCPTT mc_queueing;mc_priority=4";
SDP sdp = SDP.ParseSDPDescription(sdpStr);
logger.LogDebug(sdp.ToString());
SDP rndTripSdp = SDP.ParseSDPDescription(sdp.ToString());
Assert.Equal("MCPTT", rndTripSdp.Media.Where(x => x.Media == SDPMediaTypesEnum.application).Single().ApplicationMediaFormats.Single().Key);
Assert.Equal("mc_queueing;mc_priority=4", rndTripSdp.Media.Where(x => x.Media == SDPMediaTypesEnum.application).Single().ApplicationMediaFormats.Single().Value.Fmtp);
}
public void TIASBandwidthAttributeRoundTripTest()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
string sdpStr =
@"v=0
o=root 5936658357711814578 0 IN IP4 0.0.0.0
s=-
t=0 0
m=audio 55316 RTP/AVP 0 101
a=rtpmap:0 PCMU/8000
a=label:1
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
a=sendrecv
m=video 61682 UDP/TLS/RTP/SAVPF 96
c=IN IP4 192.168.11.50
b=TIAS:256000
a=rtpmap:96 VP8/90000
a=label:2
a=sendrecv
";
SDP sdp = SDP.ParseSDPDescription(sdpStr);
logger.LogDebug(sdp.ToString());
SDP rndTripSdp = SDP.ParseSDPDescription(sdp.ToString());
Assert.Equal(256000U, rndTripSdp.Media.Where(x => x.Media == SDPMediaTypesEnum.video).Single().TIASBandwidth);
}
public void ParseOfferWithFmtpPreceedingRtmapTest()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
string sdpStr =
@"v=0
o=mozilla...THIS_IS_SDPARTA-80.0.1 5936658357711814578 0 IN IP4 0.0.0.0
s=-
t=0 0
a=sendrecv
a=fingerprint:sha-256 46:7C:4B:FD:47:E1:22:16:28:FC:52:94:C8:9D:7D:24:2F:C3:A8:66:02:17:0D:41:DF:34:99:1C:48:CB:9F:D5
a=group:BUNDLE 0
a=ice-options:trickle
a=msid-semantic:WMS *
m=video 9 UDP/TLS/RTP/SAVP 96
c=IN IP4 0.0.0.0
a=recvonly
a=fmtp:96 max-fs=12288;max-fr=60
a=ice-pwd:8136ef42e22d9d6b31d23b39a662bf8d
a=ice-ufrag:2cbeec1e
a=mid:0
a=rtcp-mux
a=rtpmap:96 VP8/90000
a=setup:active
a=ssrc:2404235415 cname:{7c06c5db-d3db-4891-b729-df4919014c3f}";
SDP sdp = SDP.ParseSDPDescription(sdpStr);
Assert.Equal(96, sdp.Media.Where(x => x.Media == SDPMediaTypesEnum.video).Single().MediaFormats.Single().Key);
Assert.Equal("VP8", sdp.Media.Where(x => x.Media == SDPMediaTypesEnum.video).Single().MediaFormats.Single().Value.Name());
Assert.Equal("VP8/90000", sdp.Media.Where(x => x.Media == SDPMediaTypesEnum.video).Single().MediaFormats.Single().Value.Rtpmap);
Assert.Equal("max-fs=12288;max-fr=60", sdp.Media.Where(x => x.Media == SDPMediaTypesEnum.video).Single().MediaFormats.Single().Value.Fmtp);
}
private static void SDPAnswerReceived(WebRtcSession webRtcSession, string sdpAnswer)
{
try
{
logger.LogDebug("Answer SDP: " + sdpAnswer);
var answerSDP = SDP.ParseSDPDescription(sdpAnswer);
webRtcSession.SdpSessionID = answerSDP.SessionId;
webRtcSession.RemoteIceUser = answerSDP.IceUfrag;
webRtcSession.RemoteIcePassword = answerSDP.IcePwd;
// All browsers seem to have gone to trickling ICE candidates now but just
// in case one or more are given we can start the STUN dance immediately.
if (answerSDP.IceCandidates != null)
{
foreach (var iceCandidate in answerSDP.IceCandidates)
{
webRtcSession.AppendRemoteIceCandidate(iceCandidate);
}
}
OnMediaSampleReady += webRtcSession.SendMedia;
if (_mfSampleGrabber.Paused)
{
_mfSampleGrabber.Start();
}
}
catch (Exception excp)
{
logger.LogError("Exception SDPAnswerReceived. " + excp.Message);
}
}
private static async void MessageReceived(WebSocketContext context, string msg)
{
//Console.WriteLine($"websocket recv: {msg}");
var offerSDP = SDP.ParseSDPDescription(msg);
Console.WriteLine($"offer sdp: {offerSDP}");
var webRtcSession = new WebRtcSession(
AddressFamily.InterNetwork,
DTLS_CERTIFICATE_FINGERPRINT,
null,
null);
webRtcSession.setRemoteDescription(new RTCSessionDescription {
sdp = offerSDP, type = RTCSdpType.offer
});
webRtcSession.OnReceiveReport += RtpSession_OnReceiveReport;
webRtcSession.OnSendReport += RtpSession_OnSendReport;
webRtcSession.OnRtpPacketReceived += RtpSession_OnRtpPacketReceived;
webRtcSession.OnClose += (reason) =>
{
Console.WriteLine($"webrtc session closed: {reason}");
_webRtcSessions.Remove(webRtcSession);
};
// Add local recvonly tracks. This ensures that the SDP answer includes only
// the codecs we support.
MediaStreamTrack audioTrack = new MediaStreamTrack(null, SDPMediaTypesEnum.audio, false, new List <SDPMediaFormat> {
new SDPMediaFormat(SDPMediaFormatsEnum.PCMU)
});
audioTrack.Transceiver.SetStreamStatus(MediaStreamStatusEnum.RecvOnly);
webRtcSession.addTrack(audioTrack);
MediaStreamTrack videoTrack = new MediaStreamTrack(null, SDPMediaTypesEnum.video, false, new List <SDPMediaFormat> {
new SDPMediaFormat(SDPMediaFormatsEnum.VP8)
});
videoTrack.Transceiver.SetStreamStatus(MediaStreamStatusEnum.RecvOnly);
webRtcSession.addTrack(videoTrack);
var answerSdp = await webRtcSession.createAnswer();
webRtcSession.setLocalDescription(new RTCSessionDescription {
sdp = answerSdp, type = RTCSdpType.answer
});
Console.WriteLine($"answer sdp: {answerSdp}");
context.WebSocket.Send(answerSdp.ToString());
if (DoDtlsHandshake(webRtcSession))
{
_webRtcSessions.Add(webRtcSession);
}
else
{
webRtcSession.Close("dtls handshake failed.");
}
}
public void ParseMediaFormatWithFowardSlashUnitTest()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
string sdpStr =
@"v=0
o=- 1970544282 0 IN IP4 127.0.0.1
s=-
c=IN IP4 10.10.1.8
t=0 0
m=audio 57982 RTP/AVP 111
a=rtpmap:111 opus/48000/2
a=fmtp:111 minptime=10;useinbandfec=1
a=sendrecv";
SDP sdp = SDP.ParseSDPDescription(sdpStr);
logger.LogDebug(sdp.ToString());
SDP rndTripSdp = SDP.ParseSDPDescription(sdp.ToString());
Assert.Equal(111, rndTripSdp.Media.Where(x => x.Media == SDPMediaTypesEnum.audio).Single().MediaFormats.Single().Key);
Assert.Equal("opus", rndTripSdp.Media.Where(x => x.Media == SDPMediaTypesEnum.audio).Single().MediaFormats.Single().Value.Name());
}
public void GenerateLocalOfferWithAudioTrackUnitTest()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
RTCPeerConnection pc = new RTCPeerConnection(null);
pc.IceSession.StartGathering();
var audioTrack = new MediaStreamTrack(null, SDPMediaTypesEnum.audio, false, new List <SDPMediaFormat> {
new SDPMediaFormat(SDPMediaFormatsEnum.PCMU)
});
pc.addTrack(audioTrack);
var offer = pc.createOffer(new RTCOfferOptions());
SDP offerSDP = SDP.ParseSDPDescription(offer.sdp);
Assert.NotNull(offer);
Assert.NotNull(offer.sdp);
Assert.Equal(RTCSdpType.offer, offer.type);
Assert.Single(offerSDP.Media);
Assert.Contains(offerSDP.Media, x => x.Media == SDPMediaTypesEnum.audio);
logger.LogDebug(offer.sdp);
}
private static async Task StartFfmpegListener(string sdpPath, CancellationToken cancel)
{
while (!File.Exists(FFMPEG_SDP_FILE) && !cancel.IsCancellationRequested)
{
await Task.Delay(500);
}
if (!cancel.IsCancellationRequested)
{
var sdp = SDP.ParseSDPDescription(File.ReadAllText(FFMPEG_SDP_FILE));
// The SDP is only expected to contain a single video media announcement.
var videoAnn = sdp.Media.Single(x => x.Media == SDPMediaTypesEnum.video);
_ffmpegVideoFormat = videoAnn.MediaFormats.Values.First();
_ffmpegListener = new RTPSession(false, false, false, IPAddress.Loopback, FFMPEG_DEFAULT_RTP_PORT);
_ffmpegListener.AcceptRtpFromAny = true;
MediaStreamTrack videoTrack = new MediaStreamTrack(SDPMediaTypesEnum.video, false, new List <SDPAudioVideoMediaFormat> {
_ffmpegVideoFormat
}, MediaStreamStatusEnum.RecvOnly);
_ffmpegListener.addTrack(videoTrack);
_ffmpegListener.SetRemoteDescription(SIP.App.SdpType.answer, sdp);
// Set a dummy destination end point or the RTP session will end up sending RTCP reports
// to itself.
var dummyIPEndPoint = new IPEndPoint(IPAddress.Loopback, 0);
_ffmpegListener.SetDestination(SDPMediaTypesEnum.video, dummyIPEndPoint, dummyIPEndPoint);
await _ffmpegListener.Start();
}
}
public void CheckSelectedAudioForamtAttributeUnitTest()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
string remoteSdp =
@"v=0
o=- 1986548327 0 IN IP4 127.0.0.1
s=-
c=IN IP4 127.0.0.1
t=0 0
m=audio 60640 RTP/AVP 0 111 8
a=rtpmap:0 PCMU/8000
a=rtpmap:111 OPUS/48000/2";
// Create a local session with an audio track.
RTPSession rtpSession = new RTPSession(false, false, false);
MediaStreamTrack localAudioTrack = new MediaStreamTrack(SDPWellKnownMediaFormatsEnum.PCMA, SDPWellKnownMediaFormatsEnum.G723);
rtpSession.addTrack(localAudioTrack);
var offer = SDP.ParseSDPDescription(remoteSdp);
logger.LogDebug($"Remote offer: {offer}");
var result = rtpSession.SetRemoteDescription(SIP.App.SdpType.offer, offer);
logger.LogDebug($"Set remote description on local session result {result}.");
Assert.Equal(SetDescriptionResultEnum.OK, result);
Assert.Equal(8, rtpSession.AudioLocalTrack.Capabilities.Single(x => x.Name() == "PCMA").ID);
Assert.Equal("PCMA", rtpSession.GetSendingFormat(SDPMediaTypesEnum.audio).Name());
rtpSession.Close("normal");
}
/// <summary>
/// Answers an incoming SIP call.
/// </summary>
public async Task <bool> Answer()
{
if (m_pendingIncomingCall == null)
{
StatusMessage(this, $"There was no pending call available to answer.");
return(false);
}
else
{
var sipRequest = m_pendingIncomingCall.ClientTransaction.TransactionRequest;
// Assume that if the INVITE request does not contain an SDP offer that it will be an
// audio only call.
bool hasAudio = true;
bool hasVideo = false;
if (sipRequest.Body != null)
{
SDP offerSDP = SDP.ParseSDPDescription(sipRequest.Body);
hasAudio = offerSDP.Media.Any(x => x.Media == SDPMediaTypesEnum.audio && x.MediaStreamStatus != MediaStreamStatusEnum.Inactive);
hasVideo = offerSDP.Media.Any(x => x.Media == SDPMediaTypesEnum.video && x.MediaStreamStatus != MediaStreamStatusEnum.Inactive);
}
MediaSession = CreateMediaSession();
m_userAgent.RemotePutOnHold += OnRemotePutOnHold;
m_userAgent.RemoteTookOffHold += OnRemoteTookOffHold;
bool result = await m_userAgent.Answer(m_pendingIncomingCall, MediaSession);
m_pendingIncomingCall = null;
return(result);
}
}
public void ParseICESessionAttributesUnitTest()
{
Console.WriteLine(System.Reflection.MethodBase.GetCurrentMethod().Name);
string sdpStr =
"v=0" + m_CRLF +
"o=jdoe 2890844526 2890842807 IN IP4 10.0.1.1" + m_CRLF +
"s=" + m_CRLF +
"c=IN IP4 192.0.2.3" + m_CRLF +
"t=0 0" + m_CRLF +
"a=ice-pwd:asd88fgpdd777uzjYhagZg" + m_CRLF +
"a=ice-ufrag:8hhY" + m_CRLF +
"m=audio 45664 RTP/AVP 0" + m_CRLF +
"b=RS:0" + m_CRLF +
"b=RR:0" + m_CRLF +
"a=rtpmap:0 PCMU/8000" + m_CRLF +
"a=candidate:1 1 UDP 2130706431 10.0.1.1 8998 typ host" + m_CRLF +
"a=candidate:2 1 UDP 1694498815 192.0.2.3 45664 typ srflx raddr 10.0.1.1 rport 8998";
SDP sdp = SDP.ParseSDPDescription(sdpStr);
Debug.WriteLine(sdp.ToString());
Assert.IsTrue(sdp.IceUfrag == "8hhY", "The ICE username was not parsed correctly.");
Assert.IsTrue(sdp.IcePwd == "asd88fgpdd777uzjYhagZg", "The ICE password was not parsed correctly.");
}
private void WebRtcAnswerReceived(WebSocketSharp.Net.WebSockets.WebSocketContext context, string webSocketID, string sdpAnswer)
{
try
{
logger.LogDebug("Answer SDP: " + sdpAnswer);
var answerSDP = SDP.ParseSDPDescription(sdpAnswer);
var conn = _webRtcConnections.Where(x => x.Key == webSocketID).Select(x => x.Value).SingleOrDefault();
if (conn.WebRtcSession == null)
{
logger.LogWarning("No WebRTC client entry exists for web socket ID " + webSocketID + ", ignoring.");
}
else
{
logger.LogDebug("New WebRTC client SDP answer for web socket ID " + webSocketID + ".");
conn.WebRtcSession.setRemoteDescription(SdpType.answer, answerSDP);
}
context.WebSocket.CloseAsync();
}
catch (Exception excp)
{
logger.LogError("Exception WebRtcAnswerReceived. " + excp.Message);
}
}
private static async Task WebSocketMessageReceived(WebSocketContext context, RTCPeerConnection pc, string message)
{
try
{
if (pc.localDescription == null)
{
//logger.LogDebug("Offer SDP: " + message);
logger.LogDebug("Offer SDP received.");
// Add local media tracks depending on what was offered. Also add local tracks with the same media ID as
// the remote tracks so that the media announcement in the SDP answer are in the same order.
SDP remoteSdp = SDP.ParseSDPDescription(message);
var res = pc.setRemoteDescription(new RTCSessionDescriptionInit {
sdp = message, type = RTCSdpType.offer
});
if (res != SetDescriptionResultEnum.OK)
{
// No point continuing. Something will need to change and then try again.
pc.Close("failed to set remote sdp");
}
else
{
var answer = pc.createAnswer(null);
await pc.setLocalDescription(answer);
context.WebSocket.Send(answer.sdp);
}
}
else if (pc.remoteDescription == null)
{
logger.LogDebug("Answer SDP: " + message);
var res = pc.setRemoteDescription(new RTCSessionDescriptionInit {
sdp = message, type = RTCSdpType.answer
});
if (res != SetDescriptionResultEnum.OK)
{
// No point continuing. Something will need to change and then try again.
pc.Close("failed to set remote sdp");
}
}
else
{
logger.LogDebug("ICE Candidate: " + message);
if (string.IsNullOrWhiteSpace(message) || message.Trim().ToLower() == SDP.END_ICE_CANDIDATES_ATTRIBUTE)
{
logger.LogDebug("End of candidates message received.");
}
else
{
var candInit = Newtonsoft.Json.JsonConvert.DeserializeObject <RTCIceCandidateInit>(message);
pc.addIceCandidate(candInit);
}
}
}
catch (Exception excp)
{
logger.LogError("Exception WebSocketMessageReceived. " + excp.Message);
}
}
public void ParseSDPUnitTest()
{
Console.WriteLine(System.Reflection.MethodBase.GetCurrentMethod().Name);
string sdpStr =
"v=0" + m_CRLF +
"o=root 3285 3285 IN IP4 10.0.0.4" + m_CRLF +
"s=session" + m_CRLF +
"c=IN IP4 10.0.0.4" + m_CRLF +
"t=0 0" + m_CRLF +
"m=audio 12228 RTP/AVP 0 101" + m_CRLF +
"a=rtpmap:0 PCMU/8000" + m_CRLF +
"a=rtpmap:101 telephone-event/8000" + m_CRLF +
"a=fmtp:101 0-16" + m_CRLF +
"a=silenceSupp:off - - - -" + m_CRLF +
"a=ptime:20" + m_CRLF +
"a=sendrecv";
SDP sdp = SDP.ParseSDPDescription(sdpStr);
Debug.WriteLine(sdp.ToString());
Assert.IsTrue(sdp.Connection.ConnectionAddress == "10.0.0.4", "The connection address was not parsed correctly.");
Assert.IsTrue(sdp.Media[0].Media == SDPMediaTypesEnum.audio, "The media type not parsed correctly.");
Assert.IsTrue(sdp.Media[0].Port == 12228, "The connection port was not parsed correctly.");
Assert.IsTrue(sdp.Media[0].GetFormatListToString() == "0 101", "The media format list was incorrect.");
Assert.IsTrue(sdp.Media[0].MediaFormats[0].FormatID == 0, "The highest priority media format ID was incorrect.");
Assert.IsTrue(sdp.Media[0].MediaFormats[0].Name == "PCMU", "The highest priority media format name was incorrect.");
Assert.IsTrue(sdp.Media[0].MediaFormats[0].ClockRate == 8000, "The highest priority media format clockrate was incorrect.");
}
public void ParseAudioAndVideoConnectionsUnitTest()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
string sdpStr = "v=0" + m_CRLF +
"o=Cisco-SIPUA 6396 0 IN IP4 101.180.234.134" + m_CRLF +
"s=SIP Call" + m_CRLF +
"t=0 0" + m_CRLF +
"m=audio 19586 RTP/AVP 0" + m_CRLF +
"c=IN IP4 101.180.234.134" + m_CRLF +
"a=rtpmap:0 PCMU/8000" + m_CRLF +
"a=sendrecv" + m_CRLF +
"m=video 0 RTP/AVP 96" + m_CRLF +
"c=IN IP4 10.0.0.10";
SDP sdp = SDP.ParseSDPDescription(sdpStr);
logger.LogDebug(sdp.ToString());
Assert.True(sdp.Connection.ConnectionAddress == "101.180.234.134", "The connection address was not parsed correctly.");
Assert.NotEmpty(sdp.Media);
Assert.True(sdp.Media[0].Media == SDPMediaTypesEnum.audio, "The media type not parsed correctly.");
Assert.Equal(SDPMediaFormatsEnum.PCMU, sdp.Media[0].MediaFormats[0].FormatCodec);
Assert.True(sdp.Media[1].Media == SDPMediaTypesEnum.video, "The media type not parsed correctly.");
Assert.True(sdp.Media[1].Connection.ConnectionAddress == "10.0.0.10", "The connection address was not parsed correctly.");
}
public void ParseBadFormatSDPUnitTest()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
string sdpStr =
" v=0" + m_CRLF +
" o=root 3285 3285 IN IP4 10.0.0.4" + m_CRLF +
" s=session" + m_CRLF +
" c=IN IP4 10.0.0.4" + m_CRLF +
" t=0 0" + m_CRLF +
" m=audio 12228 RTP/AVP 0 101" + m_CRLF +
" a=rtpmap:0 PCMU/8000" + m_CRLF +
" a=rtpmap:101 telephone-event/8000" + m_CRLF +
" a=fmtp:101 0-16" + m_CRLF +
" a=silenceSupp:off - - - -" + m_CRLF +
" a=ptime:20" + m_CRLF +
" a=sendrecv";
SDP sdp = SDP.ParseSDPDescription(sdpStr);
logger.LogDebug(sdp.ToString());
logger.LogDebug($"audio format[0]: {sdp.Media[0].MediaFormats[0].ToString()}");
logger.LogDebug($"audio format[1]: {sdp.Media[0].MediaFormats[1].ToString()}");
Assert.True(sdp.Connection.ConnectionAddress == "10.0.0.4", "The connection address was not parsed correctly.");
Assert.True(sdp.Username == "root", "The owner was not parsed correctly.");
Assert.True(sdp.SessionName == "session", "The SessionName was not parsed correctly.");
Assert.True(sdp.Media[0].Media == SDPMediaTypesEnum.audio, "The media type not parsed correctly.");
Assert.Equal(SDPMediaFormatsEnum.PCMU, sdp.Media[0].MediaFormats[0].FormatCodec);
Assert.Equal(SDPMediaFormatsEnum.Event, sdp.Media[0].MediaFormats[1].FormatCodec);
}
public void SessionMediaSteamStatusRoundTripUnitTest()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
string sdpStr =
"v=0" + m_CRLF +
"o=root 3285 3285 IN IP4 10.0.0.4" + m_CRLF +
"s=session" + m_CRLF +
"c=IN IP4 10.0.0.4" + m_CRLF +
"t=0 0" + m_CRLF +
"a=recvonly" + m_CRLF +
"m=audio 12228 RTP/AVP 0 101" + m_CRLF +
"a=rtpmap:0 PCMU/8000" + m_CRLF +
"a=rtpmap:101 telephone-event/8000" + m_CRLF +
"a=fmtp:101 0-16" + m_CRLF +
"a=silenceSupp:off - - - -" + m_CRLF +
"a=ptime:20";
SDP sdp = SDP.ParseSDPDescription(sdpStr);
logger.LogDebug(sdp.ToString());
SDP sdpRoundTrip = SDP.ParseSDPDescription(sdp.ToString());
Assert.Equal(MediaStreamStatusEnum.RecvOnly, sdpRoundTrip.SessionMediaStreamStatus);
}
private void HandleResponse(SIPResponse response, string sourceIP, string destinationIP)
{
VoipCall call = CreateVoipCallFromSipMessage(response, sourceIP, destinationIP);
// Check if the voip calls hash set already contains this call.
if (_voipCalls.Contains(call))
{
if (response.StatusCode == (int)SipResponses.OK)
{
SDP SDPmessage = SDP.ParseSDPDescription(response.Body);
GetCall(call).RTPPort = SDPmessage.Media[0].Port;
HandleRTPPortAdded(call);
foreach (var m in SDPmessage.Media[0].MediaFormats)
{
GetCall(call).RTPMediaType += $"{m.Value.Kind}:{m.Value.Rtpmap} ";
}
HandleRTPMediaTypeAdded(call);
}
else if (response.StatusCode >= (int)SipResponses.BadRequest && response.StatusCode < (int)SipResponses.InternalServerError)
{
GetCall(call).CallState = CallState.Rejected;
HandleCallStateUpdate(call, CallState.Rejected);
HandleFinishedCall(call);
}
}
}
public void JsonRoundtripUnitTest()
{
RTCPeerConnection pcSrc = new RTCPeerConnection(null);
var videoTrackSrc = new MediaStreamTrack(SDPMediaTypesEnum.video, false, new List <SDPAudioVideoMediaFormat> {
new SDPAudioVideoMediaFormat(SDPMediaTypesEnum.video, 96, "VP8", 90000)
});
pcSrc.addTrack(videoTrackSrc);
var offer = pcSrc.createOffer(new RTCOfferOptions());
Assert.NotNull(offer.toJSON());
logger.LogDebug($"offer: {offer.toJSON()}");
var parseResult = RTCSessionDescriptionInit.TryParse(offer.toJSON(), out var init);
Assert.True(parseResult);
Assert.Equal(RTCSdpType.offer, init.type);
Assert.NotNull(init.sdp);
SDP sdp = SDP.ParseSDPDescription(init.sdp);
Assert.Equal(0, sdp.Version);
}
private void WebRtcAnswerReceived(string webSocketID, string sdpAnswer)
{
try
{
logger.Debug("Answer SDP: " + sdpAnswer);
var answerSDP = SDP.ParseSDPDescription(sdpAnswer);
var peer = _webRtcSessions.Where(x => x.Key == webSocketID).Select(x => x.Value.Peer).SingleOrDefault();
if (peer == null)
{
logger.Warn("No WebRTC client entry exists for web socket ID " + webSocketID + ", ignoring.");
}
else
{
logger.Debug("New WebRTC client SDP answer for web socket ID " + webSocketID + ".");
peer.SdpSessionID = answerSDP.SessionId;
peer.RemoteIceUser = answerSDP.IceUfrag;
peer.RemoteIcePassword = answerSDP.IcePwd;
foreach (var iceCandidate in answerSDP.IceCandidates)
{
peer.AppendRemoteIceCandidate(iceCandidate);
}
}
}
catch (Exception excp)
{
logger.Error("Exception SDPExchangeReceiver_SDPAnswerReceived. " + excp.Message);
}
}
/// <summary>
/// An outgoing call was successfully answered.
/// </summary>
/// <param name="uac">The local SIP user agent client that initiated the call.</param>
/// <param name="sipResponse">The SIP answer response received from the remote party.</param>
private void CallAnswered(ISIPClientUserAgent uac, SIPResponse sipResponse)
{
StatusMessage("Call answered: " + sipResponse.StatusCode + " " + sipResponse.ReasonPhrase + ".");
if (sipResponse.StatusCode >= 200 && sipResponse.StatusCode <= 299)
{
if (sipResponse.Header.ContentType != _sdpMimeContentType)
{
// Payload not SDP, I don't understand :(.
StatusMessage("Call was hungup as the answer response content type was not recognised: " + sipResponse.Header.ContentType + ". :(");
Hangup();
}
else if (sipResponse.Body.IsNullOrBlank())
{
// They said SDP but didn't give me any :(.
StatusMessage("Call was hungup as the answer response had an empty SDP payload. :(");
Hangup();
}
SDP sdpAnswer = SDP.ParseSDPDescription(sipResponse.Body);
System.Diagnostics.Debug.WriteLine(sipResponse.Body);
_mediaManager.SetRemoteSDP(sdpAnswer);
CallAnswer();
}
else
{
CallFinished();
}
}
public void ParseMultipleMediaAnnouncementsUnitTest()
{
Console.WriteLine(System.Reflection.MethodBase.GetCurrentMethod().Name);
string sdpStr = "v=0" + m_CRLF +
"o=- 13064410510996677 3 IN IP4 10.1.1.2" + m_CRLF +
"s=Bria 4 release 4.1.1 stamp 74246" + m_CRLF +
"c=IN IP4 10.1.1.2" + m_CRLF +
"b=AS:2064" + m_CRLF +
"t=0 0" + m_CRLF +
"m=audio 49290 RTP/AVP 0" + m_CRLF +
"a=sendrecv" + m_CRLF +
"m=video 56674 RTP/AVP 96" + m_CRLF +
"b=TIAS:2000000" + m_CRLF +
"a=rtpmap:96 VP8/90000" + m_CRLF +
"a=sendrecv" + m_CRLF +
"a=rtcp-fb:* nack pli";
SDP sdp = SDP.ParseSDPDescription(sdpStr);
Debug.WriteLine(sdp.ToString());
Assert.AreEqual(2, sdp.Media.Count);
Assert.AreEqual(49290, sdp.Media.Where(x => x.Media == SDPMediaTypesEnum.audio).FirstOrDefault().Port);
Assert.AreEqual(56674, sdp.Media.Where(x => x.Media == SDPMediaTypesEnum.video).FirstOrDefault().Port);
}
public void ParseWebRtcSDPUnitTest()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
string sdpStr =
@"v=0
o=- 1090343221 2 IN IP4 127.0.0.1
s=-
t=0 0
a=group:BUNDLE audio video
m=audio 11158 RTP/SAVP 0
c=IN IP4 127.0.0.1
a=candidate:1988909849 1 udp 1124657401 192.168.11.50 11158 typ host generation 0
a=candidate:1846148317 1 udp 2094219785 127.0.0.1 11158 typ host generation 0
a=candidate:2012632329 1 udp 2122820711 172.30.224.1 11158 typ host generation 0
a=end-of-candidates
a=ice-ufrag:UWWAVCUMPZHPCLNIMZYA
a=ice-pwd:IEUVYLWMXMQZKCMLTXQHZZVWXRCBLPPNUYFPCABK
a=fingerprint:sha-256 C6:ED:8C:9D:06:50:77:23:0A:4A:D8:42:68:29:D0:70:2F:BB:C7:72:EC:98:5C:62:07:1B:0C:5D:CB:CE:BE:CD
a=setup:actpass
a=sendonly
a=rtcp-mux
a=mid:audio
a=rtpmap:0 PCMU/8000
m=video 0 RTP/SAVP 100
c=IN IP4 127.0.0.1
a=ice-ufrag:UWWAVCUMPZHPCLNIMZYA
a=ice-pwd:IEUVYLWMXMQZKCMLTXQHZZVWXRCBLPPNUYFPCABK
a=fingerprint:sha-256 C6:ED:8C:9D:06:50:77:23:0A:4A:D8:42:68:29:D0:70:2F:BB:C7:72:EC:98:5C:62:07:1B:0C:5D:CB:CE:BE:CD
a=bundle-only
a=setup:actpass
a=sendonly
a=rtcp-mux
a=mid:video
a=rtpmap:100 VP8/90000";
SDP sdp = SDP.ParseSDPDescription(sdpStr);
logger.LogDebug(sdp.ToString());
SDP rndTripSdp = SDP.ParseSDPDescription(sdp.ToString());
Assert.Equal("BUNDLE audio video", sdp.Group);
Assert.Equal("BUNDLE audio video", rndTripSdp.Group);
Assert.Equal("UWWAVCUMPZHPCLNIMZYA", sdp.Media[0].IceUfrag);
Assert.Equal("UWWAVCUMPZHPCLNIMZYA", rndTripSdp.Media[0].IceUfrag);
Assert.Equal("IEUVYLWMXMQZKCMLTXQHZZVWXRCBLPPNUYFPCABK", sdp.Media[0].IcePwd);
Assert.Equal("IEUVYLWMXMQZKCMLTXQHZZVWXRCBLPPNUYFPCABK", rndTripSdp.Media[0].IcePwd);
Assert.Equal(3, sdp.Media[0].IceCandidates.Count());
Assert.Equal(3, rndTripSdp.Media[0].IceCandidates.Count());
Assert.Equal("sha-256 C6:ED:8C:9D:06:50:77:23:0A:4A:D8:42:68:29:D0:70:2F:BB:C7:72:EC:98:5C:62:07:1B:0C:5D:CB:CE:BE:CD", sdp.Media[0].DtlsFingerprint);
Assert.Equal("sha-256 C6:ED:8C:9D:06:50:77:23:0A:4A:D8:42:68:29:D0:70:2F:BB:C7:72:EC:98:5C:62:07:1B:0C:5D:CB:CE:BE:CD", rndTripSdp.Media[0].DtlsFingerprint);
Assert.Equal("audio", sdp.Media[0].MediaID);
Assert.Equal("audio", rndTripSdp.Media[0].MediaID);
Assert.Equal("video", sdp.Media[1].MediaID);
Assert.Equal("video", rndTripSdp.Media[1].MediaID);
}
private static async Task WebSocketMessageReceived(WebSocketContext context, RTCPeerConnection pc, string message)
{
try
{
if (pc.localDescription == null)
{
//logger.LogDebug("Offer SDP: " + message);
logger.LogDebug("Offer SDP received.");
// Add local media tracks depending on what was offered. Also add local tracks with the same media ID as
// the remote tracks so that the media announcement in the SDP answer are in the same order.
SDP remoteSdp = SDP.ParseSDPDescription(message);
foreach (var ann in remoteSdp.Media)
{
var capbilities = FilterCodecs(ann.Media, ann.MediaFormats);
MediaStreamTrack track = new MediaStreamTrack(ann.Media, false, capbilities, MediaStreamStatusEnum.RecvOnly);
pc.addTrack(track);
}
pc.setRemoteDescription(new RTCSessionDescriptionInit {
sdp = message, type = RTCSdpType.offer
});
var answer = pc.createAnswer(null);
await pc.setLocalDescription(answer);
Console.WriteLine(answer.sdp);
context.WebSocket.Send(answer.sdp);
}
else if (pc.remoteDescription == null)
{
logger.LogDebug("Answer SDP: " + message);
pc.setRemoteDescription(new RTCSessionDescriptionInit {
sdp = message, type = RTCSdpType.answer
});
}
else
{
logger.LogDebug("ICE Candidate: " + message);
if (string.IsNullOrWhiteSpace(message) || message.Trim().ToLower() == SDP.END_ICE_CANDIDATES_ATTRIBUTE)
{
logger.LogDebug("End of candidates message received.");
}
else
{
var candInit = Newtonsoft.Json.JsonConvert.DeserializeObject <RTCIceCandidateInit>(message);
pc.addIceCandidate(candInit);
}
}
}
catch (Exception excp)
{
logger.LogError("Exception WebSocketMessageReceived. " + excp.Message);
}
}
public void RFC5118_4_9()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
string sipMsg =
"INVITE sip:[email protected] SIP/2.0" + CRLF +
"To: sip:[email protected]" + CRLF +
"From: sip:[email protected];tag=81x2" + CRLF +
"Via: SIP/2.0/UDP [::ffff:192.0.2.10]:19823;branch=z9hG4bKbh19" + CRLF +
"Via: SIP/2.0/UDP [::ffff:192.0.2.2];branch=z9hG4bKas3-111" + CRLF +
"Call-ID: SSG9559905523997077@hlau_4100" + CRLF +
"Contact: \"T. desk phone\" <sip:ted@[::ffff:192.0.2.2]>" + CRLF +
"CSeq: 612 INVITE" + CRLF +
"Max-Forwards: 70" + CRLF +
"Content-Type: application/sdp" + CRLF +
"Content-Length: 236" + CRLF +
CRLF +
"v=0" + CRLF +
"o=assistant 971731711378798081 0 IN IP6 ::ffff:192.0.2.2" + CRLF +
"s=Call me soon, please!" + CRLF +
"c=IN IP6 ::ffff:192.0.2.2" + CRLF +
"t=3338481189 3370017201" + CRLF +
"m=audio 6000 RTP/AVP 2" + CRLF +
"a=rtpmap:2 G726-32/8000" + CRLF +
"m=video 6024 RTP/AVP 107" + CRLF +
"a=rtpmap:107 H263-1998/90000";
SIPMessageBuffer sipMessageBuffer = SIPMessageBuffer.ParseSIPMessage(Encoding.UTF8.GetBytes(sipMsg), null, null);
Assert.True(sipMessageBuffer != null, "The SIP message not parsed correctly.");
SIPRequest sipRequest = SIPRequest.ParseSIPRequest(sipMessageBuffer);
Assert.Equal(SIPMethodsEnum.INVITE, sipRequest.Method);
IPAddress ip6;
Assert.NotEmpty(sipRequest.Header.Vias.Via);
Assert.True(IPAddress.TryParse(sipRequest.Header.Vias.TopViaHeader.Host, out ip6));
Assert.Equal(AddressFamily.InterNetworkV6, ip6.AddressFamily);
Assert.Equal(19823, sipRequest.Header.Vias.TopViaHeader.Port);
Assert.True(IPAddress.TryParse(sipRequest.Header.Vias.BottomViaHeader.ReceivedFromAddress, out ip6));
Assert.Equal(AddressFamily.InterNetworkV6, ip6.AddressFamily);
Assert.NotEmpty(sipRequest.Header.Contact);
Assert.True(IPAddress.TryParse(sipRequest.Header.Contact[0].ContactURI.HostAddress, out ip6));
Assert.Equal(AddressFamily.InterNetworkV6, ip6.AddressFamily);
Assert.False(IPAddress.TryParse(sipRequest.URI.HostAddress, out ip6));
Assert.False(string.IsNullOrWhiteSpace(sipRequest.Body));
SDP sdp = SDP.ParseSDPDescription(sipRequest.Body);
Assert.NotNull(sdp);
Assert.NotNull(sdp.Connection);
Assert.True(IPAddress.TryParse(sdp.Connection.ConnectionAddress, out ip6));
Assert.Equal(AddressFamily.InterNetworkV6, ip6.AddressFamily);
Assert.NotEmpty(sdp.Media);
logger.LogDebug("-----------------------------------------");
}
public void MediaOrderMatchesRemoteOfferUnitTest()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
// By default offers made by us always put audio first. Create a remote SDP offer
// with the video first.
string remoteSdp =
@"v=0
o=- 1986548327 0 IN IP4 127.0.0.1
s=-
c=IN IP4 127.0.0.1
t=0 0
m=video 60638 RTP/AVP 100
a=rtpmap:100 VP8/90000
a=sendrecv
m=audio 60640 RTP/AVP 0 111
a=rtpmap:0 PCMU/8000
a=rtpmap:111 OPUS/48000/2
a=sendrecv";
// Create a local session and add the video track first.
RTPSession rtpSession = new RTPSession(false, false, false);
MediaStreamTrack localAudioTrack = new MediaStreamTrack(SDPMediaTypesEnum.audio, false, new List <SDPAudioVideoMediaFormat> {
new SDPAudioVideoMediaFormat(SDPWellKnownMediaFormatsEnum.PCMU),
new SDPAudioVideoMediaFormat(SDPMediaTypesEnum.audio, 110, "OPUS/48000/2")
});
rtpSession.addTrack(localAudioTrack);
MediaStreamTrack localVideoTrack = new MediaStreamTrack(SDPMediaTypesEnum.video, false, new List <SDPAudioVideoMediaFormat> {
new SDPAudioVideoMediaFormat(SDPMediaTypesEnum.video, 96, "VP8", 90000)
});
rtpSession.addTrack(localVideoTrack);
var offer = SDP.ParseSDPDescription(remoteSdp);
logger.LogDebug($"Remote offer: {offer}");
var result = rtpSession.SetRemoteDescription(SIP.App.SdpType.offer, offer);
logger.LogDebug($"Set remote description on local session result {result}.");
Assert.Equal(SetDescriptionResultEnum.OK, result);
var answer = rtpSession.CreateAnswer(null);
logger.LogDebug($"Local answer: {answer}");
Assert.Equal(111, rtpSession.AudioLocalTrack.Capabilities.Single(x => x.Name() == "OPUS").ID);
Assert.Equal(100, rtpSession.VideoLocalTrack.Capabilities.Single(x => x.Name() == "VP8").ID);
//Assert.True(SDPAudioVideoMediaFormat.AreMatch(offer.Media.Single(x => x.Media == SDPMediaTypesEnum.audio)., answer.Media.First().Media));
//Assert.Equal(offer.Media.Last().Media, answer.Media.Last().Media);
rtpSession.Close("normal");
}
