private void Connection_OnUdpPacket(DiscordMediaConnection connection, MediaPacketEventArgs args)
{
if (_decoder != null && args.Header.Type == DiscordMediaConnection.SupportedCodecs["opus"].PayloadType && _ssrcToUserDictionary.TryGetValue(args.Header.SSRC, out ulong userId))
{
if (!_receivers.TryGetValue(userId, out IncomingVoiceStream receiver))
{
receiver = _receivers[userId] = new IncomingVoiceStream(Connection, userId);
_client.TriggerVCSpeaking(this, receiver);
}
if (args.Payload.SequenceEqual(_silenceFrame))
{
receiver.SilenceFramesReceived++;
if (receiver.SilenceFramesReceived >= 10)
{
receiver.Close();
_receivers.Remove(receiver.UserId);
}
}
else
{
try
{
byte[] decoded = new byte[OpusConverter.FrameBytes];
int length = _decoder.DecodeFrame(args.Payload, 0, args.Payload.Length, decoded, 0, false);
receiver.Enqueue(new DiscordVoicePacket(decoded));
}
catch (OpusException) { }
}
}
}
protected override void HandlePacket(RTPPacketHeader header, byte[] payload)
{
// for some reason discord sends us voice packets before we get the user's ID. i don't think this impacts the audio tho; it seems like these packets don't have any voice data
if (header.Type == SupportedCodecs["opus"].PayloadType && _ssrcToUserDictionary.TryGetValue(header.SSRC, out ulong userId))
{
if (!_receivers.TryGetValue(userId, out IncomingVoiceStream receiver))
{
receiver = _receivers[userId] = new IncomingVoiceStream(this, userId);
if (OnUserSpeaking != null)
{
Task.Run(() => OnUserSpeaking.Invoke(this, _receivers[userId]));
}
}
if (payload.SequenceEqual(SilenceFrame))
{
receiver.SilenceFramesReceived++;
if (receiver.SilenceFramesReceived >= 10)
{
receiver.Close();
_receivers.Remove(receiver.UserId);
}
}
else
{
try
{
byte[] decoded = new byte[OpusEncoder.FrameBytes];
int length = _decoder.DecodeFrame(payload, 0, payload.Length, decoded, 0, false);
receiver.Enqueue(new DiscordVoicePacket(decoded));
}
catch (OpusException) { }
}
}
}