public void Write(Span <byte> data, Meta meta)
{
UpdatedSubscriptionCache();
var codec = meta?.Codec ?? Codec.OpusMusic; // XXX a bit hacky
switch (SendMode)
{
case TargetSendMode.None:
break;
case TargetSendMode.Voice:
client.SendAudio(data, codec);
break;
case TargetSendMode.Whisper:
client.SendAudioWhisper(data, codec, channelSubscriptionsCache, clientSubscriptionsCache);
break;
case TargetSendMode.WhisperGroup:
client.SendAudioGroupWhisper(data, codec, GroupWhisperType, GroupWhisperTarget, GroupWhisperTargetId);
break;
default:
throw new ArgumentOutOfRangeException(nameof(SendMode), "Unknown send target");
}
}
private void AudioSend()
{
lock (ffmpegLock)
{
if (ffmpegProcess == null)
{
return;
}
if (audioBuffer == null || audioBuffer.Length < encoder.OptimalPacketSize)
{
audioBuffer = new byte[encoder.OptimalPacketSize];
}
UpdatedSubscriptionCache();
while (audioTimer.RemainingBufferDuration < audioBufferLength)
{
int read = ffmpegProcess.StandardOutput.BaseStream.Read(audioBuffer, 0, encoder.OptimalPacketSize);
if (read == 0)
{
// check for premature connection drop
if (ffmpegProcess.HasExited && !hasTriedToReconnectAudio)
{
var expectedStopLength = GetCurrentSongLength();
if (expectedStopLength != TimeSpan.Zero)
{
var actualStopPosition = audioTimer.SongPosition;
if (actualStopPosition + retryOnDropBeforeEnd < expectedStopLength)
{
Log.Write(Log.Level.Debug, "Connection to song lost, retrying at {0}", actualStopPosition);
hasTriedToReconnectAudio = true;
Position = actualStopPosition;
return;
}
}
}
if (ffmpegProcess.HasExited &&
audioTimer.RemainingBufferDuration < TimeSpan.Zero &&
!encoder.HasPacket)
{
AudioStop();
OnSongEnd?.Invoke(this, new EventArgs());
}
return;
}
hasTriedToReconnectAudio = false;
audioTimer.PushBytes(read);
bool doSend = true;
switch (SendMode)
{
case TargetSendMode.None:
doSend = false;
break;
case TargetSendMode.Voice:
break;
case TargetSendMode.Whisper:
case TargetSendMode.WhisperGroup:
if (isStall)
{
if (++stallCount % StallCountInterval == 0)
{
stallNoErrorCount++;
if (stallNoErrorCount > StallNoErrorCountMax)
{
stallCount = 0;
isStall = false;
}
}
else
{
doSend = false;
}
}
if (SendMode == TargetSendMode.Whisper)
{
doSend &= channelSubscriptionsCache.Length > 0 || clientSubscriptionsCache.Length > 0;
}
break;
default:
throw new InvalidOperationException();
}
// Save cpu when we know there is noone to send to
if (!doSend)
{
break;
}
AudioModifier.AdjustVolume(audioBuffer, read, volume);
encoder.PushPcmAudio(audioBuffer, read);
while (encoder.HasPacket)
{
var packet = encoder.GetPacket();
switch (SendMode)
{
case TargetSendMode.Voice:
tsFullClient.SendAudio(packet.Array, packet.Length, encoder.Codec);
break;
case TargetSendMode.Whisper:
tsFullClient.SendAudioWhisper(packet.Array, packet.Length, encoder.Codec, channelSubscriptionsCache, clientSubscriptionsCache);
break;
case TargetSendMode.WhisperGroup:
tsFullClient.SendAudioGroupWhisper(packet.Array, packet.Length, encoder.Codec, GroupWhisperType, GroupWhisperTarget);
break;
}
encoder.ReturnPacket(packet.Array);
}
}
}
}