public SvagContainer Read(Stream stream)
{
var reader = new BinaryReader(stream);
if (reader.ReadInt32() != 0x67617653)
{
throw new RhythmCodexException("Svag header ID is not valid.");
}
reader.ReadInt32(); // data length
var freq = reader.ReadInt32();
var channels = reader.ReadInt32();
var interleave = reader.ReadInt32();
reader.ReadInt32(); // reserved 0
reader.ReadInt32(); // reserved 1
reader.ReadBytes(0x800 - 0x1C); // discard the rest of the header
var chunk = _vagStreamReader.Read(stream, channels, interleave);
return(new SvagContainer
{
VagChunk = chunk,
SampleRate = freq
});
}
public BeatmaniaPs2Bgm Read(Stream stream)
{
var reader = new BinaryReader(stream);
var length = reader.ReadInt32S();
reader.ReadByte();
var volume = reader.ReadByte();
var rate = reader.ReadUInt16S();
var channels = reader.ReadByte();
// skip the rest of the header
reader.ReadBytes(0x800 - 9);
var source = reader.ReadBytes(length);
using (var mem = new MemoryStream(source))
{
var data = _vagStreamReader.Read(mem, channels, 0x800);
return(new BeatmaniaPs2Bgm
{
Data = data,
Volume = volume,
Rate = rate,
});
}
}
public BeatmaniaPs2Bgm Read(Stream stream)
{
var reader = new BinaryReader(stream);
var header = Enumerable.Range(0, 12).Select(i => reader.ReadInt32()).ToArray();
var headerLength = header[2];
var dataLength = header[3];
var loopStart = header[4];
var loopEnd = header[5];
var rate = header[6];
var channels = header[7];
var interleave = header[9];
var volume = header[10];
reader.ReadBytes(headerLength - 0x30);
var data = reader.ReadBytes(dataLength);
using (var mem = new MemoryStream(data))
{
return(new BeatmaniaPs2Bgm
{
Channels = channels,
Rate = rate,
Volume = volume,
Data = _vagStreamReader.Read(mem, channels, interleave)
});
}
}
public Xa2Container Read(Stream stream)
{
var reader = new BinaryReader(stream);
var channels = reader.ReadInt32();
var interleave = reader.ReadInt32();
reader.ReadBytes(0x800 - 0x008); // discard the rest of the header
var chunk = _vagStreamReader.Read(stream, channels, interleave);
return(new Xa2Container
{
VagChunk = chunk
});
}
public IList <BeatmaniaPsxKeysound> Read(Stream stream)
{
var reader = new BinaryReader(stream);
reader.ReadInt32S(); // directory offset
var directoryLength = reader.ReadInt32S();
reader.ReadInt32S();
reader.ReadInt32S();
var keysounds = Enumerable
.Range(0, directoryLength / 0x10)
.Select(i => new BeatmaniaPsxKeysound
{
DirectoryEntry = new BeatmaniaPsxKeysoundDirectoryEntry
{
Offset = reader.ReadInt32(),
Unknown0 = reader.ReadInt32(),
Unknown1 = reader.ReadInt32(),
Unknown2 = reader.ReadInt32()
}
})
.ToList();
var dataOffset = reader.ReadInt32S();
var dataLength = reader.ReadInt32S();
reader.ReadInt32S();
reader.ReadInt32S();
var data = reader.ReadBytes(dataLength);
using (var dataStream = new ReadOnlyMemoryStream(data))
{
foreach (var keysound in keysounds)
{
dataStream.Position = keysound.DirectoryEntry.Offset - dataOffset;
keysound.Data = _vagStreamReader.Read(dataStream, 1, 16);
}
}
return(keysounds);
}
public SvagContainer Read(HeuristicResult result, Stream stream)
{
if (!(result is VagHeuristicResult info))
{
return(null);
}
if (info.Start != null)
{
stream.TryRead(0, (int)info.Start);
}
var output = _vagStreamReader.Read(stream, info.Channels ?? 1, info.Interleave ?? 0);
output.Volume = info.Volume;
output.SampleRate = info.SampleRate;
output.Length = info.Length;
return(new SvagContainer
{
SampleRate = info.SampleRate,
VagChunk = output
});
}
public VagChunk Read(HeuristicResult result, Stream stream)
{
if (!(result is VagHeuristicResult info))
{
return(null);
}
var decryptStream = info.Key != null
? new BeatmaniaPs2NewAudioDecryptStream(stream, info.Key)
: stream;
if (info.Start != null)
{
stream.TryRead(0, (int)info.Start);
}
var output = _vagStreamReader.Read(decryptStream, info.Channels ?? 1, info.Interleave ?? 0);
output.Volume = info.Volume;
output.SampleRate = info.SampleRate;
output.Length = info.Length;
return(output);
}
public VagChunk Read(HeuristicResult result, Stream stream)
{
var info = result as VagHeuristicResult;
return(_vagStreamReader.Read(stream, info?.Channels ?? 1, info?.Interleave ?? 0));
}
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
});
}
}