public virtual void Fill(IAudioStream source, int samples, bool loop)
{
int byteCount = samples * _blockAlign;
//Lock buffer and fill
BufferData data = Lock(_writeOffset, byteCount);
try { data.Fill(source, loop); }
finally { Unlock(data); }
//Advance offsets
_writeOffset = (_writeOffset + byteCount) % _dataLength;
_writeSample = source.SamplePosition;
}