public void HandleAudio(Audio.Codecs.CodecID codecid, byte[] encoded)
{
if (isDisposed)
{
return;
}
Audio.Codecs.INetworkChatCodec remoteCodec = Codecs.SingleOrDefault(m => m.CodecID == codecid);
if (remoteCodec == null)
{
Console.WriteLine("Bad Audio Packet: Codec ID {0}", codecid);
return;
}
if (codecid != LastCodec)
{
LastCodec = codecid;
CodecName = remoteCodec.Name();
}
TimeSpan buffered = waveOut == null ? TimeSpan.Zero : waveProvider.BufferedDuration;
bool isPlaying = buffered != TimeSpan.Zero;
if (waveOut == null || waveProvider.WaveFormat != remoteCodec.RecordFormat || (!isPlaying && ShouldTryRestartOutput))
{
Start(remoteCodec);
}
else if (!isPlaying)
{
UnderRuns++;
}
if (buffered <= FrameDropThresholdMs)
{
byte[] decoded = remoteCodec.Decode(encoded, encoded.Length);
int length = decoded.Length;
if (!isPlaying && AudioOutWPF.shouldRampUnderruns)
{
InputResampler.RampPCM16Volume(ref decoded, length, InputResampler.RampDirection.ZeroToFull);
}
var volume = LevelManager.LevelScalar;
if (volume < 1.0f)
{
InputResampler.ScalePCM16VolumeDb(ref decoded, length, volume);
}
if (length > 0 && ShouldDropSilence)
{
int dropped = DropSilence(silenceThreshhold, ref decoded, ref length);
DroppedSilence += dropped;
}
else if (ShouldAddSilence && length > 5)
{
bool silent = true;
for (int i = 0; i < 5; i += 2)
{
if (decoded[i + 1] != 0 || decoded[i] > addSilenceThreshold)
{
silent = false;
break;
}
}
if (silent)
{
var silenceBytes = length / 4;
var silence = new byte[silenceBytes];
byte silenceLevel = (byte)(addSilenceThreshold / 2);
for (int i = 0; i < silenceBytes - 1; i += 2)
{
silence[i + 1] = 0;
silence[i] = silenceLevel;
}
waveProvider.AddSamples(silence, 0, silenceBytes);
AddedSilence += length;
}
}
waveProvider.AddSamples(decoded, 0, length);
}
else
{
DroppedPackets++;
}
if (shouldUpdateDuration)
{
BufferedDuration = buffered;
shouldUpdateDuration = false;
}
LastReceived = DateTime.UtcNow;
}