/// <summary>
/// Reconstruct a stream from WBH data.
/// </summary>
/// <param name="entry"></param>
/// <param name="convertToPcm"></param>
/// <returns></returns>
public Memory <byte> ReconstructWave(WBHEntry entry, bool convertToPcm)
{
var data = Data.Span.Slice(entry.Offset, entry.Size);
var entryMutate = entry;
// ReSharper disable once InvertIf
if (convertToPcm && entry.Codec != WAVECodec.PCM && entry.Channels == 1)
{
data = entry.Codec switch
{
WAVECodec.MSADPCM => MSADPCM.Decode(data, entryMutate.BlockAlign),
WAVECodec.GCADPCM when entry.Setup is short[] coefficients => GCADPCM.Decode(data, coefficients, entry.Samples),
_ => data
};
entryMutate.BlockAlign = 2;
entryMutate.Codec = WAVECodec.PCM;
}
return(PCM.ConstructWAVE((short)entryMutate.Codec, entry.Channels, entryMutate.Frequency, entryMutate.BlockAlign, entryMutate.Codec switch
{
WAVECodec.PCM => 16,
WAVECodec.MSADPCM => 4,
WAVECodec.GCADPCM => 4,
_ => 4
}, data));
/// <summary>
/// Reconstructs stream to a WAV
/// </summary>
/// <returns></returns>
public List <Memory <byte> > ReconstructWave(bool convertPcm)
{
// TODO: BFWAV?
if (!convertPcm)
{
return(ReconstructAsIndividual());
}
var streams = new List <Memory <byte> >();
for (var index = 0; index < AudioBuffers.Count; index++)
{
var buffer = AudioBuffers[index];
var coeffs = new Span <GCADPCMCoefficient>(new[] { Table[index].Coefficient1, Table[index].Coefficient2 });
var data = buffer.Span;
data = GCADPCM.Decode(data, MemoryMarshal.Cast <GCADPCMCoefficient, short>(coeffs).ToArray(), Table[index].SampleCount);
streams.Add(new Memory <byte>(PCM.ConstructWAVE(0x0001, 1, Header.SampleRate, 0x2, 16, data).ToArray()));
}
return(streams);
}
