public ISound Decode(BeatmaniaPs2Keysound keysound)
{
var samples = keysound.Data.SelectMany(d => _vagDecoder.Decode(d).Samples).ToList();
var leftRate = keysound.FrequencyLeft == 0 ? null : (int?)keysound.FrequencyLeft;
var rightRate = keysound.FrequencyRight == 0 ? null : (int?)keysound.FrequencyRight;
var left = true;
foreach (var sample in samples)
{
sample[NumericData.Rate] = left ? leftRate : rightRate;
left = !left;
}
return(new Sound
{
Samples = samples,
[NumericData.Volume] = _beatmaniaDspTranslator.GetLinearVolume(keysound.Volume),
[NumericData.SourceVolume] = keysound.Volume,
[NumericData.Panning] = _beatmaniaDspTranslator.GetBm2dxPanning(keysound.Panning),
[NumericData.SourcePanning] = keysound.Panning,
[NumericData.Channel] = keysound.Channel
});
}
public BeatmaniaPs2KeysoundSet Read(Stream stream)
{
var reader = new BinaryReader(stream);
var header = Enumerable.Range(0, 8).Select(i => reader.ReadInt32()).ToArray();
var length = header[0];
var hunk = reader.ReadBytes(length - 0x20);
using (var hunkMem = new MemoryStream(hunk))
{
var hunkReader = new BinaryReader(hunkMem);
var entries = Enumerable.Range(0, 511).Select(i =>
{
hunkMem.Position = i * 0x20;
var result = new BeatmaniaPs2Keysound
{
SampleNumber = hunkReader.ReadInt16(),
Reserved0 = hunkReader.ReadInt16(),
Channel = hunkReader.ReadByte(),
Volume = hunkReader.ReadByte(),
Panning = hunkReader.ReadByte(),
SampleType = hunkReader.ReadByte(),
FrequencyLeft = hunkReader.ReadInt32(),
FrequencyRight = hunkReader.ReadInt32(),
OffsetLeft = hunkReader.ReadInt32(),
OffsetRight = hunkReader.ReadInt32(),
PseudoLeft = hunkReader.ReadInt32(),
PseudoRight = hunkReader.ReadInt32()
};
switch (result.SampleType)
{
case 2:
{
hunkMem.Position = result.OffsetLeft - 61488;
result.Data = new List <VagChunk> {
_vagStreamReader.Read(hunkMem, 1, 0)
};
break;
}
case 3:
{
hunkMem.Position = header[1] + result.OffsetLeft + 16368;
result.Data = new List <VagChunk> {
_vagStreamReader.Read(hunkMem, 1, 0)
};
break;
}
case 4:
{
hunkMem.Position = result.OffsetLeft - 61488;
var dataLeft = _vagStreamReader.Read(hunkMem, 1, 0);
hunkMem.Position = result.OffsetRight - 61488;
var dataRight = _vagStreamReader.Read(hunkMem, 1, 0);
result.Data = new List <VagChunk> {
dataLeft, dataRight
};
break;
}
default:
{
return(null);
}
}
return(result);
}).Where(entry => entry != null).ToList();
return(new BeatmaniaPs2KeysoundSet
{
Keysounds = entries
});
}
}
