public override byte[] DecodeToBytes(RTPPacket packet)
{
short[] sOutput = new short[packet.PayloadData.Length * 2];
Codec.Decode(DecodeState, sOutput, packet.PayloadData, packet.PayloadData.Length);
return(Utils.ConvertShortArrayToByteArray(sOutput));
}
private byte[] DecodeFormat2(byte[] data)
{
short[] output = new short[data.Length * 2];
decode2.Decode(decode2State, output, data, data.Length);
float[] f = Converters.shorts2floats(output, true);
float[] s = Converters.mono2stereo(f);
byte[] o = codecUpSampler.inputResample(Converters.floats2bytes(s), s.Length);
return(o);
}
public byte[] Decode(byte[] data, int offset, int length)
{
if (offset != 0)
{
throw new ArgumentException("G722 does not yet support non-zero offsets");
}
int decodedLength = length * 4;
var outputBuffer = new byte[decodedLength];
var wb = new WaveBuffer(outputBuffer);
int decoded = codec.Decode(decoderState, wb.ShortBuffer, data, length);
Debug.Assert(decodedLength == decoded * 2); // because decoded is a number of samples
return(outputBuffer);
}
public byte[] Decode(byte[] data, int offset, int length)
{
if (offset != 0)
{
throw new ArgumentException("G722 does not yet support non-zero offsets");
}
int decodedLength = length * 4;
byte[] outputBuffer = new byte[decodedLength];
WaveBuffer wb = new WaveBuffer(outputBuffer);
_codec.Decode(_decoderState, wb.ShortBuffer, data, length);
return(outputBuffer);
}
// public int Decode(short[] pcm, byte[] encoded)
// {
// if (g722Codec == null)
// {
// g722Codec = new G722Codec();
// g722CodecState = new G722CodecState(G722_BIT_RATE, G722Flags.None);
// }
// var requiredDecodedSampleCount = encoded.Length * 2;
// if (pcm.Length < requiredDecodedSampleCount)
// {
// return -1;
// }
// var decodedSampleCount = g722Codec.Decode(g722CodecState, pcm,
// encoded, encoded.Length);
// return decodedSampleCount;
// }
public short[] Decode(byte[] encoded)
{
if (g722Codec == null)
{
g722Codec = new G722Codec();
g722CodecState = new G722CodecState(G722_BIT_RATE, G722Flags.None);
}
var requiredDecodedSampleCount = encoded.Length * 2;
var pcm = new short[requiredDecodedSampleCount];
g722Codec.Decode(g722CodecState,pcm,encoded,encoded.Length);
return pcm;
}
private byte[] DecodeFormat1(byte[] data)
{
// SPLIT INTO TWO PARTS
byte[] L = new byte[data.Length / 2];
byte[] R = new byte[data.Length / 2];
Array.Copy(data, L, L.Length);
Array.Copy(data, L.Length, R, 0, R.Length);
short[] outputL = new short[L.Length * 2];
short[] outputR = new short[R.Length * 2];
decode1L.Decode(decode1Lstate, outputL, L, L.Length);
decode1R.Decode(decode1Rstate, outputR, R, R.Length);
short[] output = Converters.MuxDualMono(outputL, outputR);
return(Converters.floats2bytes(Converters.shorts2floats(output, true)));
}