public ISound Decode(BeatmaniaPcAudioEntry entry)
{
using (var wavDataMem = new ReadOnlyMemoryStream(entry.Data))
{
var result = _wavDecoder.Decode(wavDataMem);
var panning = entry.Panning;
if (panning > 0x7F || panning < 0x01)
{
panning = 0x40;
}
var volume = entry.Volume;
if (volume < 0x01)
{
volume = 0x01;
}
else if (volume > 0xFF)
{
volume = 0xFF;
}
result[NumericData.Panning] = (panning - 1.0d) / 126.0d;
result[NumericData.Volume] = BeatmaniaPcConstants.VolumeTable[volume];
result[NumericData.Channel] = entry.Channel;
result[NumericData.SourceVolume] = entry.Volume;
result[NumericData.SourcePanning] = entry.Panning;
return(result);
}
}
public void Write(Stream target, BeatmaniaPcAudioEntry entry)
{
var writer = new BinaryWriter(target);
writer.Write(0x39584432); // 2DX9
writer.Write(0x14 + entry.ExtraInfo.Length);
writer.Write(entry.Data.Length);
writer.Write((short)0);
writer.Write((short)entry.Channel);
writer.Write((short)entry.Panning);
writer.Write((short)entry.Volume);
writer.Write(entry.ExtraInfo);
writer.Write(entry.Data);
}
private static Stream CreateData(BeatmaniaPcAudioEntry entry)
{
var mem = new MemoryStream();
var writer = new BinaryWriter(mem);
writer.Write(0x39584432); // 2DX9
writer.Write(0x14 + entry.ExtraInfo.Length); // header length
writer.Write(entry.Data.Length);
writer.Write((short)entry.Reserved);
writer.Write((short)entry.Channel);
writer.Write((short)entry.Panning);
writer.Write((short)entry.Volume);
writer.Write(entry.ExtraInfo);
writer.Write(entry.Data);
mem.Position = 0;
return(mem);
}
