private void Start_Click(object sender, RoutedEventArgs e)
{
Console.WriteLine("Inside StartCall Button");
string sIP = "192.168.57.121";
//string sIP = "38.127.68.60";
//string sIP = "60.68.127.38";
int iFriendPort = 60002;
int iRet = 0;
P2PWrapper p2pWrapper = P2PWrapper.GetInstance();
iRet = p2pWrapper.InitializeLibraryR(100 /*UserID*/);
System.Console.WriteLine("MediaEngineLib==> InitializeLibrary, iRet = " + iRet);
p2pWrapper.CreateSessionR(200 /*FriendID*/, 1 /*Audio*/, sIP, iFriendPort);
p2pWrapper.CreateSessionR(200, 2 /*Video*/, sIP, iFriendPort);
p2pWrapper.SetRelayServerInformationR(200, 1, sIP, iFriendPort);
p2pWrapper.SetRelayServerInformationR(200, 2, sIP, iFriendPort);
iRet = p2pWrapper.StartAudioCallR(200);
iRet = p2pWrapper.StartVideoCallR(200, 288 /*Height*/, 352 /*Width*/);
System.Diagnostics.Debug.WriteLine("MediaEngineLib==> StartVideoCall, iRet = " + iRet);
p2pWrapper.SetLoggingStateR(true, 5);
p2pWrapper.LinkWithConnectivityLib(null);
AudioSender oAlpha = new AudioSender();
oAlpha.AudioData = System.IO.File.ReadAllBytes(@"AudioSending(1).pcm");
//oAlpha.bStartSending = true;
Thread oThread = new Thread(new ThreadStart(oAlpha.StartSendingAudio));
oThread.Start();
}
private bool ProcessPacket(ReadOnlySpan <byte> data, ref Memory <byte> opus, ref Memory <byte> pcm, IList <ReadOnlyMemory <byte> > pcmPackets, out AudioSender voiceSender, out AudioFormat outputFormat)
{
voiceSender = null;
outputFormat = default;
if (!this.Rtp.IsRtpHeader(data))
{
return(false);
}
this.Rtp.DecodeHeader(data, out var sequence, out var timestamp, out var ssrc, out var hasExtension);
if (!this.TransmittingSSRCs.TryGetValue(ssrc, out var vtx))
{
var decoder = Opus.CreateDecoder();
vtx = new AudioSender(ssrc, decoder)
{
// user isn't present as we haven't received a speaking event yet.
User = null
};
}
voiceSender = vtx;
if (sequence <= vtx.LastSequence) // out-of-order packet; discard
{
return(false);
}
var gap = vtx.LastSequence != 0 ? sequence - 1 - vtx.LastSequence : 0;
if (gap >= 5)
{
this.Discord.Logger.LogWarning(VoiceNextEvents.VoiceReceiveFailure, "5 or more voice packets were dropped when receiving");
}
Span <byte> nonce = stackalloc byte[Sodium.NonceSize];
this.Sodium.GetNonce(data, nonce, this.SelectedEncryptionMode);
this.Rtp.GetDataFromPacket(data, out var encryptedOpus, this.SelectedEncryptionMode);
var opusSize = Sodium.CalculateSourceSize(encryptedOpus);
opus = opus.Slice(0, opusSize);
var opusSpan = opus.Span;
try
{
this.Sodium.Decrypt(encryptedOpus, opusSpan, nonce);
// Strip extensions, if any
if (hasExtension)
{
// RFC 5285, 4.2 One-Byte header
// http://www.rfcreader.com/#rfc5285_line186
if (opusSpan[0] == 0xBE && opusSpan[1] == 0xDE)
{
var headerLen = opusSpan[2] << 8 | opusSpan[3];
var i = 4;
for (; i < headerLen + 4; i++)
{
var @byte = opusSpan[i];
// ID is currently unused since we skip it anyway
//var id = (byte)(@byte >> 4);
var length = (byte)(@byte & 0x0F) + 1;
i += length;
}
// Strip extension padding too
while (opusSpan[i] == 0)
{
i++;
}
opusSpan = opusSpan.Slice(i);
}
// TODO: consider implementing RFC 5285, 4.3. Two-Byte Header
}
if (opusSpan[0] == 0x90)
{
// I'm not 100% sure what this header is/does, however removing the data causes no
// real issues, and has the added benefit of removing a lot of noise.
opusSpan = opusSpan.Slice(2);
}
if (gap == 1)
{
var lastSampleCount = this.Opus.GetLastPacketSampleCount(vtx.Decoder);
var fecpcm = new byte[this.AudioFormat.SampleCountToSampleSize(lastSampleCount)];
var fecpcmMem = fecpcm.AsSpan();
this.Opus.Decode(vtx.Decoder, opusSpan, ref fecpcmMem, true, out _);
pcmPackets.Add(fecpcm.AsMemory(0, fecpcmMem.Length));
}
else if (gap > 1)
{
var lastSampleCount = this.Opus.GetLastPacketSampleCount(vtx.Decoder);
for (var i = 0; i < gap; i++)
{
var fecpcm = new byte[this.AudioFormat.SampleCountToSampleSize(lastSampleCount)];
var fecpcmMem = fecpcm.AsSpan();
this.Opus.ProcessPacketLoss(vtx.Decoder, lastSampleCount, ref fecpcmMem);
pcmPackets.Add(fecpcm.AsMemory(0, fecpcmMem.Length));
}
}
var pcmSpan = pcm.Span;
this.Opus.Decode(vtx.Decoder, opusSpan, ref pcmSpan, false, out outputFormat);
pcm = pcm.Slice(0, pcmSpan.Length);
}
finally
{
vtx.LastSequence = sequence;
}
return(true);
}
private async Task HandleDispatch(JObject jo)
{
var opc = (int)jo["op"];
var opp = jo["d"] as JObject;
switch (opc)
{
case 2: // READY
this.Discord.Logger.LogTrace(VoiceNextEvents.VoiceDispatch, "Received READY (OP2)");
var vrp = opp.ToObject <VoiceReadyPayload>();
this.SSRC = vrp.SSRC;
this.UdpEndpoint = new ConnectionEndpoint(vrp.Address, vrp.Port);
// this is not the valid interval
// oh, discord
//this.HeartbeatInterval = vrp.HeartbeatInterval;
this.HeartbeatTask = Task.Run(this.HeartbeatAsync);
await this.Stage1(vrp).ConfigureAwait(false);
break;
case 4: // SESSION_DESCRIPTION
this.Discord.Logger.LogTrace(VoiceNextEvents.VoiceDispatch, "Received SESSION_DESCRIPTION (OP4)");
var vsd = opp.ToObject <VoiceSessionDescriptionPayload>();
this.Key = vsd.SecretKey;
this.Sodium = new Sodium(this.Key.AsMemory());
await this.Stage2(vsd).ConfigureAwait(false);
break;
case 5: // SPEAKING
// Don't spam OP5
// No longer spam, Discord supposedly doesn't send many of these
this.Discord.Logger.LogTrace(VoiceNextEvents.VoiceDispatch, "Received SPEAKING (OP5)");
var spd = opp.ToObject <VoiceSpeakingPayload>();
var foundUserInCache = this.Discord.TryGetCachedUserInternal(spd.UserId.Value, out var resolvedUser);
var spk = new UserSpeakingEventArgs
{
Speaking = spd.Speaking,
SSRC = spd.SSRC.Value,
User = resolvedUser,
};
if (foundUserInCache && this.TransmittingSSRCs.TryGetValue(spk.SSRC, out var txssrc5) && txssrc5.Id == 0)
{
txssrc5.User = spk.User;
}
else
{
var opus = this.Opus.CreateDecoder();
var vtx = new AudioSender(spk.SSRC, opus)
{
User = await this.Discord.GetUserAsync(spd.UserId.Value).ConfigureAwait(false)
};
if (!this.TransmittingSSRCs.TryAdd(spk.SSRC, vtx))
{
this.Opus.DestroyDecoder(opus);
}
}
await this._userSpeaking.InvokeAsync(this, spk).ConfigureAwait(false);
break;
case 6: // HEARTBEAT ACK
var dt = DateTime.Now;
var ping = (int)(dt - this.LastHeartbeat).TotalMilliseconds;
Volatile.Write(ref this._wsPing, ping);
this.Discord.Logger.LogTrace(VoiceNextEvents.VoiceDispatch, "Received HEARTBEAT_ACK (OP6, {0}ms)", ping);
this.LastHeartbeat = dt;
break;
case 8: // HELLO
// this sends a heartbeat interval that we need to use for heartbeating
this.Discord.Logger.LogTrace(VoiceNextEvents.VoiceDispatch, "Received HELLO (OP8)");
this.HeartbeatInterval = opp["heartbeat_interval"].ToObject <int>();
break;
case 9: // RESUMED
this.Discord.Logger.LogTrace(VoiceNextEvents.VoiceDispatch, "Received RESUMED (OP9)");
this.HeartbeatTask = Task.Run(this.HeartbeatAsync);
break;
case 12: // CLIENT_CONNECTED
this.Discord.Logger.LogTrace(VoiceNextEvents.VoiceDispatch, "Received CLIENT_CONNECTED (OP12)");
var ujpd = opp.ToObject <VoiceUserJoinPayload>();
var usrj = await this.Discord.GetUserAsync(ujpd.UserId).ConfigureAwait(false);
{
var opus = this.Opus.CreateDecoder();
var vtx = new AudioSender(ujpd.SSRC, opus)
{
User = usrj
};
if (!this.TransmittingSSRCs.TryAdd(vtx.SSRC, vtx))
{
this.Opus.DestroyDecoder(opus);
}
}
await this._userJoined.InvokeAsync(this, new VoiceUserJoinEventArgs { User = usrj, SSRC = ujpd.SSRC }).ConfigureAwait(false);
break;
case 13: // CLIENT_DISCONNECTED
this.Discord.Logger.LogTrace(VoiceNextEvents.VoiceDispatch, "Received CLIENT_DISCONNECTED (OP13)");
var ulpd = opp.ToObject <VoiceUserLeavePayload>();
var txssrc = this.TransmittingSSRCs.FirstOrDefault(x => x.Value.Id == ulpd.UserId);
if (this.TransmittingSSRCs.ContainsKey(txssrc.Key))
{
this.TransmittingSSRCs.TryRemove(txssrc.Key, out var txssrc13);
this.Opus.DestroyDecoder(txssrc13.Decoder);
}
var usrl = await this.Discord.GetUserAsync(ulpd.UserId).ConfigureAwait(false);
await this._userLeft.InvokeAsync(this, new VoiceUserLeaveEventArgs
{
User = usrl,
SSRC = txssrc.Key
}).ConfigureAwait(false);
break;
default:
this.Discord.Logger.LogTrace(VoiceNextEvents.VoiceDispatch, "Received unknown voice opcode (OP{0})", opc);
break;
}
}
private async Task HandleDispatch(JObject jo)
{
var opc = (int)jo["op"];
var opp = jo["d"] as JObject;
switch (opc)
{
case 2: // READY
this.Discord.DebugLogger.LogMessage(LogLevel.Debug, "VoiceNext", "OP2 received", DateTime.Now);
var vrp = opp.ToObject <VoiceReadyPayload>();
this.SSRC = vrp.SSRC;
this.ConnectionEndpoint = new ConnectionEndpoint(this.ConnectionEndpoint.Hostname, vrp.Port);
// this is not the valid interval
// oh, discord
//this.HeartbeatInterval = vrp.HeartbeatInterval;
this.HeartbeatTask = Task.Run(this.HeartbeatAsync);
await this.Stage1(vrp).ConfigureAwait(false);
break;
case 4: // SESSION_DESCRIPTION
this.Discord.DebugLogger.LogMessage(LogLevel.Debug, "VoiceNext", "OP4 received", DateTime.Now);
var vsd = opp.ToObject <VoiceSessionDescriptionPayload>();
this.Key = vsd.SecretKey;
this.Sodium = new Sodium(this.Key.AsMemory());
await this.Stage2(vsd).ConfigureAwait(false);
break;
case 5: // SPEAKING
// Don't spam OP5
//this.Discord.DebugLogger.LogMessage(LogLevel.Debug, "VoiceNext", "OP5 received", DateTime.Now);
var spd = opp.ToObject <VoiceSpeakingPayload>();
var spk = new UserSpeakingEventArgs(this.Discord)
{
Speaking = spd.Speaking,
SSRC = spd.SSRC.Value,
User = this.Discord.InternalGetCachedUser(spd.UserId.Value)
};
#if !NETSTANDARD1_1
if (spk.User != null && this.TransmittingSSRCs.TryGetValue(spk.SSRC, out var txssrc5) && txssrc5.Id == 0)
{
txssrc5.User = spk.User;
}
else
{
var opus = this.Opus.CreateDecoder();
var vtx = new AudioSender(spk.SSRC, opus)
{
User = await this.Discord.GetUserAsync(spd.UserId.Value).ConfigureAwait(false)
};
if (!this.TransmittingSSRCs.TryAdd(spk.SSRC, vtx))
{
this.Opus.DestroyDecoder(opus);
}
}
#endif
await this._userSpeaking.InvokeAsync(spk).ConfigureAwait(false);
break;
case 6: // HEARTBEAT ACK
var dt = DateTime.Now;
var ping = (int)(dt - this.LastHeartbeat).TotalMilliseconds;
Volatile.Write(ref this._wsPing, ping);
this.Discord.DebugLogger.LogMessage(LogLevel.Debug, "VoiceNext", $"Received voice heartbeat ACK, ping {ping.ToString("#,##0", CultureInfo.InvariantCulture)}ms", dt);
this.LastHeartbeat = dt;
break;
case 8: // HELLO
// this sends a heartbeat interval that we need to use for heartbeating
this.HeartbeatInterval = opp["heartbeat_interval"].ToObject <int>();
break;
case 9: // RESUMED
this.Discord.DebugLogger.LogMessage(LogLevel.Debug, "VoiceNext", "OP9 received", DateTime.Now);
this.HeartbeatTask = Task.Run(this.HeartbeatAsync);
break;
case 12: // CLIENT_CONNECTED
var ujpd = opp.ToObject <VoiceUserJoinPayload>();
var usrj = await this.Discord.GetUserAsync(ujpd.UserId).ConfigureAwait(false);
#if !NETSTANDARD1_1
{
var opus = this.Opus.CreateDecoder();
var vtx = new AudioSender(ujpd.SSRC, opus)
{
User = usrj
};
if (!this.TransmittingSSRCs.TryAdd(vtx.SSRC, vtx))
{
this.Opus.DestroyDecoder(opus);
}
}
#endif
await this._userJoined.InvokeAsync(new VoiceUserJoinEventArgs(this.Discord) { User = usrj, SSRC = ujpd.SSRC }).ConfigureAwait(false);
break;
case 13: // CLIENT_DISCONNECTED
var ulpd = opp.ToObject <VoiceUserLeavePayload>();
#if !NETSTANDARD1_1
var txssrc = this.TransmittingSSRCs.FirstOrDefault(x => x.Value.Id == ulpd.UserId);
if (this.TransmittingSSRCs.ContainsKey(txssrc.Key))
{
this.TransmittingSSRCs.TryRemove(txssrc.Key, out var txssrc13);
this.Opus.DestroyDecoder(txssrc13.Decoder);
}
#endif
var usrl = await this.Discord.GetUserAsync(ulpd.UserId).ConfigureAwait(false);
await this._userLeft.InvokeAsync(new VoiceUserLeaveEventArgs(this.Discord)
{
User = usrl
#if !NETSTANDARD1_1
, SSRC = txssrc.Key
#endif
}).ConfigureAwait(false);
break;
default:
this.Discord.DebugLogger.LogMessage(LogLevel.Warning, "VoiceNext", $"Unknown opcode received: {opc.ToString(CultureInfo.InvariantCulture)}", DateTime.Now);
break;
}
}
private bool ProcessPacket(ReadOnlySpan <byte> data, ref Memory <byte> opus, ref Memory <byte> pcm, IList <ReadOnlyMemory <byte> > pcmPackets, out AudioSender voiceSender, out AudioFormat outputFormat)
{
voiceSender = null;
outputFormat = default;
if (!this.Rtp.IsRtpHeader(data))
{
return(false);
}
this.Rtp.DecodeHeader(data, out var sequence, out var timestamp, out var ssrc, out var hasExtension);
var vtx = this.TransmittingSSRCs[ssrc];
voiceSender = vtx;
if (sequence <= vtx.LastSequence) // out-of-order packet; discard
{
return(false);
}
var gap = vtx.LastSequence != 0 ? sequence - 1 - vtx.LastSequence : 0;
if (gap >= 5)
{
this.Discord.DebugLogger.LogMessage(LogLevel.Warning, "VNext RX", "5 or more voice packets were dropped when receiving", DateTime.Now);
}
Span <byte> nonce = stackalloc byte[Sodium.NonceSize];
this.Sodium.GetNonce(data, nonce, this.SelectedEncryptionMode);
this.Rtp.GetDataFromPacket(data, out var encryptedOpus, this.SelectedEncryptionMode);
var opusSize = Sodium.CalculateSourceSize(encryptedOpus);
opus = opus.Slice(0, opusSize);
var opusSpan = opus.Span;
try
{
this.Sodium.Decrypt(encryptedOpus, opusSpan, nonce);
// Strip extensions, if any
if (hasExtension)
{
// RFC 5285, 4.2 One-Byte header
// http://www.rfcreader.com/#rfc5285_line186
if (opusSpan[0] == 0xBE && opusSpan[1] == 0xDE)
{
var headerLen = opusSpan[2] << 8 | opusSpan[3];
var i = 4;
for (; i < headerLen + 4; i++)
{
var @byte = opusSpan[i];
// ID is currently unused since we skip it anyway
//var id = (byte)(@byte >> 4);
var length = (byte)(@byte & 0x0F) + 1;
i += length;
}
// Strip extension padding too
while (opusSpan[i] == 0)
{
i++;
}
opusSpan = opusSpan.Slice(i);
}
// TODO: consider implementing RFC 5285, 4.3. Two-Byte Header
}
if (gap == 1)
{
var lastSampleCount = this.Opus.GetLastPacketSampleCount(vtx.Decoder);
var fecpcm = new byte[this.AudioFormat.SampleCountToSampleSize(lastSampleCount)];
var fecpcmMem = fecpcm.AsSpan();
this.Opus.Decode(vtx.Decoder, opusSpan, ref fecpcmMem, true, out _);
pcmPackets.Add(fecpcm.AsMemory(0, fecpcmMem.Length));
}
else if (gap > 1)
{
var lastSampleCount = this.Opus.GetLastPacketSampleCount(vtx.Decoder);
for (var i = 0; i < gap; i++)
{
var fecpcm = new byte[this.AudioFormat.SampleCountToSampleSize(lastSampleCount)];
var fecpcmMem = fecpcm.AsSpan();
this.Opus.ProcessPacketLoss(vtx.Decoder, lastSampleCount, ref fecpcmMem);
pcmPackets.Add(fecpcm.AsMemory(0, fecpcmMem.Length));
}
}
var pcmSpan = pcm.Span;
this.Opus.Decode(vtx.Decoder, opusSpan, ref pcmSpan, false, out outputFormat);
pcm = pcm.Slice(0, pcmSpan.Length);
}
finally
{
vtx.LastSequence = sequence;
}
return(true);
}
private void Start_Click(object sender, RoutedEventArgs e)
{
Console.WriteLine("Inside StartCall Button");
string sIP = "192.168.57.121";
//string sIP = "38.127.68.60";
//string sIP = "60.68.127.38";
int iFriendPort = 60002;
int iRet = 0;
P2PWrapper p2pWrapper = P2PWrapper.GetInstance();
iRet = p2pWrapper.InitializeLibraryR(100/*UserID*/);
System.Console.WriteLine("MediaEngineLib==> InitializeLibrary, iRet = " + iRet);
p2pWrapper.CreateSessionR(200/*FriendID*/, 1/*Audio*/, sIP, iFriendPort);
p2pWrapper.CreateSessionR(200, 2/*Video*/, sIP, iFriendPort);
p2pWrapper.SetRelayServerInformationR(200, 1, sIP, iFriendPort);
p2pWrapper.SetRelayServerInformationR(200, 2, sIP, iFriendPort);
iRet = p2pWrapper.StartAudioCallR(200);
iRet = p2pWrapper.StartVideoCallR(200, 288 /*Height*/, 352/*Width*/);
System.Diagnostics.Debug.WriteLine("MediaEngineLib==> StartVideoCall, iRet = " + iRet);
p2pWrapper.SetLoggingStateR(true, 5);
p2pWrapper.LinkWithConnectivityLib(null);
AudioSender oAlpha = new AudioSender();
oAlpha.AudioData = System.IO.File.ReadAllBytes(@"AudioSending(1).pcm");
//oAlpha.bStartSending = true;
Thread oThread = new Thread(new ThreadStart(oAlpha.StartSendingAudio));
oThread.Start();
}
internal VoiceNextConnection(DiscordClient client, DiscordGuild guild, DiscordChannel channel, VoiceNextConfiguration config, VoiceServerUpdatePayload server, VoiceStateUpdatePayload state, AudioSender audioSender)
{
Discord = client;
Guild = guild;
Channel = channel;
SSRCMap = new ConcurrentDictionary <uint, ulong>();
_userSpeaking = new AsyncEvent <UserSpeakingEventArgs>(Discord.EventErrorHandler, "USER_SPEAKING");
_userLeft = new AsyncEvent <VoiceUserLeaveEventArgs>(Discord.EventErrorHandler, "USER_LEFT");
#if !NETSTANDARD1_1
_voiceReceived = new AsyncEvent <VoiceReceiveEventArgs>(Discord.EventErrorHandler, "VOICE_RECEIVED");
#endif
_voiceSocketError = new AsyncEvent <SocketErrorEventArgs>(Discord.EventErrorHandler, "VOICE_WS_ERROR");
TokenSource = new CancellationTokenSource();
Configuration = config;
Opus = new OpusCodec(48000, 2, Configuration.VoiceApplication);
Sodium = new SodiumCodec();
Rtp = new RtpCodec();
ServerData = server;
StateData = state;
var eps = ServerData.Endpoint;
var epi = eps.LastIndexOf(':');
var eph = string.Empty;
var epp = 80;
if (epi != -1)
{
eph = eps.Substring(0, epi);
epp = int.Parse(eps.Substring(epi + 1));
}
else
{
eph = eps;
}
ConnectionEndpoint = new ConnectionEndpoint {
Hostname = eph, Port = epp
};
ReadyWait = new TaskCompletionSource <bool>();
IsInitialized = false;
IsDisposed = false;
PlayingWait = null;
PlaybackSemaphore = new SemaphoreSlim(1, 1);
UdpClient = new NativeUdpClient(audioSender);
VoiceWs = Discord.Configuration.WebSocketClientFactory(Discord.Configuration.Proxy);
VoiceWs.Disconnected += this.VoiceWS_SocketClosed;
VoiceWs.MessageReceived += this.VoiceWS_SocketMessage;
VoiceWs.Connected += this.VoiceWS_SocketOpened;
VoiceWs.Errored += this.VoiceWs_SocketErrored;
}
