private void Decode()
{
_InputBuffer = SourceFile.GetData();
Init();
var fileHeaderSize = ReadInt16(0x0E);
ReadScdHeader(fileHeaderSize);
var entryHeaders = new ScdEntryHeader[ScdHeader.EntryCount];
var entryChunkOffsets = new int[ScdHeader.EntryCount];
var entryDataOffsets = new int[ScdHeader.EntryCount];
for (var i = 0; i < ScdHeader.EntryCount; ++i)
{
var headerOffset = ReadInt32(ScdHeader.EntryTableOffset + 4 * i);
entryHeaders[i] = ReadEntryHeader(headerOffset);
entryChunkOffsets[i] = headerOffset + System.Runtime.InteropServices.Marshal.SizeOf <ScdEntryHeader>();
entryDataOffsets[i] = entryChunkOffsets[i];
for (var j = 0; j < entryHeaders[i].AuxChunkCount; ++j)
{
entryDataOffsets[i] += ReadInt32(entryDataOffsets[i] + 4);
}
}
this.Entries = new ScdEntry[ScdHeader.EntryCount];
for (var i = 0; i < ScdHeader.EntryCount; ++i)
{
this.Entries[i] = CreateEntry(entryHeaders[i], entryChunkOffsets[i], entryDataOffsets[i]);
}
_InputBuffer = null;
}
private ScdEntryHeader ReadEntryHeader(int offset)
{
var h = new ScdEntryHeader();
h.DataSize = ReadInt32(offset + 0x00);
h.ChannelCount = ReadInt32(offset + 0x04);
h.Frequency = ReadInt32(offset + 0x08);
h.Codec = (ScdCodec)ReadInt32(offset + 0x0C);
h.LoopStartSample = ReadInt32(offset + 0x10);
h.LoopEndSample = ReadInt32(offset + 0x14);
h.SamplesOffset = ReadInt32(offset + 0x18);
h.AuxChunkCount = ReadInt16(offset + 0x1C);
h.Unknown1 = ReadInt16(offset + 0x1E);
return(h);
}
private ScdEntry CreateEntry(ScdEntryHeader header, int chunksOffset, int dataOffset)
{
if (header.DataSize == 0 || header.Codec == ScdCodec.None)
{
return(null);
}
switch (header.Codec)
{
case ScdCodec.OGG:
return(new ScdOggEntry(this, header, dataOffset));
case ScdCodec.MSADPCM:
return(new ScdAdpcmEntry(this, header, chunksOffset, dataOffset));
default:
throw new NotSupportedException();
}
}
internal ScdAdpcmEntry(ScdFile file, ScdEntryHeader header, int chunksOffset, int dataOffset)
: base(file, header)
{
Decode(chunksOffset, dataOffset);
}
protected ScdEntry(ScdFile file, ScdEntryHeader header)
{
this.File = file;
this.Header = header;
}
internal ScdOggEntry(ScdFile file, ScdEntryHeader header, int dataOffset)
: base(file, header)
{
Decode(dataOffset);
}
protected ScdEntry(ScdFile file, ScdEntryHeader header) {
this.File = file;
this.Header = header;
}
private ScdEntryHeader ReadEntryHeader(int offset)
{
var h = new ScdEntryHeader();
h.DataSize = ReadInt32(offset + 0x00);
h.ChannelCount = ReadInt32(offset + 0x04);
h.Frequency = ReadInt32(offset + 0x08);
h.Codec = (ScdCodec)ReadInt32(offset + 0x0C);
h.LoopStartSample = ReadInt32(offset + 0x10);
h.LoopEndSample = ReadInt32(offset + 0x14);
h.SamplesOffset = ReadInt32(offset + 0x18);
h.AuxChunkCount = ReadInt16(offset + 0x1C);
h.Unknown1 = ReadInt16(offset + 0x1E);
return h;
}
private void Decode()
{
_InputBuffer = SourceFile.GetData();
Init();
var fileHeaderSize = ReadInt16(0x0E);
ReadScdHeader(fileHeaderSize);
var entryHeaders = new ScdEntryHeader[ScdHeader.EntryCount];
var entryChunkOffsets = new int[ScdHeader.EntryCount];
var entryDataOffsets = new int[ScdHeader.EntryCount];
for (var i = 0; i < ScdHeader.EntryCount; ++i) {
var headerOffset = ReadInt32(ScdHeader.EntryTableOffset + 4 * i);
entryHeaders[i] = ReadEntryHeader(headerOffset);
entryChunkOffsets[i] = headerOffset + System.Runtime.InteropServices.Marshal.SizeOf<ScdEntryHeader>();
entryDataOffsets[i] = entryChunkOffsets[i];
for (var j = 0; j < entryHeaders[i].AuxChunkCount; ++j)
entryDataOffsets[i] += ReadInt32(entryDataOffsets[i] + 4);
}
this.Entries = new ScdEntry[ScdHeader.EntryCount];
for (var i = 0; i < ScdHeader.EntryCount; ++i)
this.Entries[i] = CreateEntry(entryHeaders[i], entryChunkOffsets[i], entryDataOffsets[i]);
_InputBuffer = null;
}
private ScdEntry CreateEntry(ScdEntryHeader header, int chunksOffset, int dataOffset)
{
if (header.DataSize == 0 || header.Codec == ScdCodec.None)
return null;
switch (header.Codec) {
case ScdCodec.OGG:
return new ScdOggEntry(this, header, dataOffset);
case ScdCodec.MSADPCM:
return new ScdAdpcmEntry(this, header, chunksOffset, dataOffset);
default:
throw new NotSupportedException();
}
}
internal ScdOggEntry(ScdFile file, ScdEntryHeader header, int dataOffset)
: base(file, header)
{
Decode(dataOffset);
}
