/*
* FIXME> Possibly need a "final" flag that would pad with silence, and close the encoding sequence numbering...
*/
public int EncodeSamplesToFrame(byte[] bufferAudioPCM, out byte[] nCompressed)
{
byte[] bufferOut = new byte[32768];
int nCompressedBytes = 0;
int nSampleCount = bufferAudioPCM.Length / 2;
unsafe
{
nCompressedBytes = SteamVoiceCodecDLL.Compress(ptrSteamVoiceCodec, bufferAudioPCM, nSampleCount, bufferOut, 32768, false);
}
Console.WriteLine("========================================== Completed compression!");
int dataSize = bufferHeader.Length + nCompressedBytes;
byte[] rv = new byte[dataSize + 4 /*CRC*/];
System.Buffer.BlockCopy(bufferHeader, 0, rv, 0, bufferHeader.Length);
System.Buffer.BlockCopy(bufferOut, 0, rv, bufferHeader.Length, nCompressedBytes);
UInt32 crc = crc32(rv, dataSize);
rv[dataSize + 0] = (byte)((crc >> 0) & 0xff);
rv[dataSize + 1] = (byte)((crc >> 8) & 0xff);
rv[dataSize + 2] = (byte)((crc >> 16) & 0xff);
rv[dataSize + 3] = (byte)((crc >> 24) & 0xff);
nCompressed = rv;
return(dataSize + 4);
}
/*
*
*/
public SteamVoiceFrame()
{
make_crc_table();
unsafe
{
ptrSteamVoiceCodec = SteamVoiceCodecDLL.CreateSteamCodec();
}
}
/*
*
*/
public int DecodePayload(byte[] nCompressedBuffer, int buflen, out byte[] nDecompressedSamples)
{
// byte [] nCompressedBuffer = { <nPayload Size>, <chunk size>, <seq nr>, <opus data> };
int nDecompressedBytes;
byte[] bufferOut = new byte[32768];
unsafe
{
//int buflen ;
//buflen = nCompressedBuffer[1];
//buflen = (buflen << 8) + nCompressedBuffer[0];
nDecompressedBytes = SteamVoiceCodecDLL.Decompress(ptrSteamVoiceCodec, nCompressedBuffer, buflen, bufferOut, 32768);
}
nDecompressedSamples = bufferOut;
return(nDecompressedBytes);
}