public bool processBuffer(byte[] rxBuf, out byte[] pcm16)
{
pcm16 = null;
if (!_initialized)
{
if (!initialize(rxBuf))
{
return(false);
}
}
//next does not include the header (initialized with asc), works with all bitrates
int bytesConsumed;
int decoderObjectType = 0;
int decoderChannels = 0;
int decoderSamplingRate = 0;
int startIx = 0;
int error = AACDecoder.decode(hDecoder, rxBuf, startIx, out pcm16, out bytesConsumed,
out decoderSamplingRate, out decoderChannels, out decoderObjectType);
if (error != 0)
{
string s = AACDecoder.getErrorMessage((byte)error);
//logger.Error(s);
return(false);
}
return(true);
}
/// <summary>
/// Process audio stream
/// </summary>
/// <param name="rxBuf">AAC coded audio buffer</param>
/// <param name="pcm16">PCM16 decoded audio buffer</param>
/// <returns></returns>
private bool processBuffer(byte[] rxBuf, out byte[] pcm16)
{
pcm16 = null; //this one receives the decoded bytes
// this is a complete aac frame with 960 samples
if (!_initialized)
{
if (!initialize(rxBuf))
{
return(false);
}
}
//next does not include the header (initialized with asc), works with all bitrates
int bytesConsumed;
int decoderObjectType = 0;
int decoderChannels = 0;
int decoderSamplingRate = 0;
int startIx = 0;
int error = AACDecoder.decode(hDecoder, rxBuf, startIx, out pcm16, out bytesConsumed,
out decoderSamplingRate, out decoderChannels, out decoderObjectType);
AACInfo.DecoderSamplingRate = decoderSamplingRate;
AACInfo.DecoderChannels = decoderChannels;
AACInfo.DecoderObjectType = (AAC_ObjectTypes)decoderObjectType;
AACInfo.PCMBitDepth = 16;
// construct buffers of always 10000 bytes and send it to the audio
if (error != 0)
{
string s = AACDecoder.getErrorMessage((byte)error);
logger.Error(s);
return(false);
}
else
{
byte[] pcm16Buf = audioOutBuf.createBuffer(pcm16);
if (pcm16Buf != null)
{
waudio.AddSamples(pcm16Buf, 0, pcm16Buf.Length);
}
//else is a normal operating case indicating that the const size buffer is not yet ready
}
return(true);
}