/// <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)
{
var streams = new List <Memory <byte> >();
foreach (var buffer in AudioBuffers)
{
var data = buffer.Span;
var codec = 0x0002;
var blockAlign = Info.FrameSize;
if (convertPcm)
{
data = MSADPCM.Decode(data, blockAlign);
codec = 0x0001;
blockAlign = 0x2;
}
streams.Add(new Memory <byte>(PCM.ConstructWAVE((short)codec, 1, Header.SampleRate, blockAlign, (WAVECodec)codec switch
{
WAVECodec.PCM => 16,
WAVECodec.MSADPCM => 4,
WAVECodec.GCADPCM => 4,
_ => 4
}, data).ToArray()));