internal void InitForSampleRate(int sampleRate)
{
if (_encoder != null)
{
Debug.LogError("Destroying opus encoder");
_encoder.Dispose();
_encoder = null;
}
_encoder = new OpusEncoder(sampleRate, 1)
{
EnableForwardErrorCorrection = false
};
if (_pendingBitrate > 0)
{
Debug.Log("Using pending bitrate");
SetBitrate(_pendingBitrate);
}
if (_encodingThread == null)
{
_encodingThread = new Thread(EncodingThreadEntry)
{
IsBackground = true
};
_encodingThread.Start();
}
}
public bool InitializeEncoderWithSampleRate(int newSampleRate)
{
if (_encoder != null)
{
return(false);
}
_encoder = new OpusEncoder(newSampleRate, 1)
{
EnableForwardErrorCorrection = false
};
return(_encoder != null);
}
public ArraySegment <byte> Encode(OpusEncoder encoder, out bool isStop, out bool isEmpty)
{
isStop = false;
isEmpty = false;
PcmArray nextPcmToSend = null;
ArraySegment <byte> encoder_buffer;
lock (_unencodedBuffer)
{
if (_unencodedBuffer.Count == 0)
{
isEmpty = true;
}
else
{
if (_unencodedBuffer.Count == 1 && _isWaitingToSendLastPacket)
{
isStop = true;
}
TargettedSpeech speech = _unencodedBuffer.Dequeue();
isStop = isStop || speech.IsStop;
nextPcmToSend = speech.PcmData;
if (isStop)
{
_isWaitingToSendLastPacket = false;
}
}
}
if (nextPcmToSend == null || nextPcmToSend.Pcm.Length == 0)
{
isEmpty = true;
}
encoder_buffer = isEmpty ? EmptyByteSegment : encoder.Encode(nextPcmToSend.Pcm);
if (nextPcmToSend != null)
{
nextPcmToSend.IsAvailable = true;
}
if (isStop)
{
Debug.Log("Resetting encoder state");
encoder.ResetState();
}
return(encoder_buffer);
}
public void Dispose()
{
_isRunning = false;
_waitHandle.Set();
if (_encodingThread != null)
{
_encodingThread.Abort();
}
_encodingThread = null;
if (_encoder != null)
{
_encoder.Dispose();
}
_encoder = null;
}
public CompressedBuffer Encode(OpusEncoder encoder, out bool isStop, out bool isEmpty)
{
isStop = false;
isEmpty = false;
PcmArray nextPcmToSend = null;
ArraySegment <byte> encoder_buffer;
lock (_bufferLock)
{
// Make sure we have data, or an end event
if (_unencodedBuffer.Count == 0)
{
Monitor.Wait(_bufferLock);
}
// If there are still no unencoded buffers, then we return an empty packet
if (_unencodedBuffer.Count == 0)
{
isEmpty = true;
}
else
{
if (_unencodedBuffer.Count == 1 && _isWaitingToSendLastPacket)
{
isStop = true;
}
TargettedSpeech speech = _unencodedBuffer.Dequeue();
isStop = isStop || speech.IsStop;
nextPcmToSend = speech.PcmData;
if (isStop)
{
_isWaitingToSendLastPacket = false;
}
}
}
if (nextPcmToSend == null || nextPcmToSend.Pcm.Length == 0)
{
isEmpty = true;
}
encoder_buffer = isEmpty ? EmptyByteSegment : encoder.Encode(nextPcmToSend.Pcm);
byte[] pos = nextPcmToSend == null ? null : nextPcmToSend.PositionalData;
int posLen = nextPcmToSend == null ? 0 : nextPcmToSend.PositionalDataLength;
if (nextPcmToSend != null)
{
nextPcmToSend.UnRef();
}
if (isStop)
{
Debug.Log("Resetting encoder state");
encoder.ResetState();
}
CompressedBuffer compressedBuffer = new CompressedBuffer
{
EncodedData = encoder_buffer,
PositionalData = pos,
PositionalDataLength = posLen
};
return(compressedBuffer);
}