public override ArcFile TryOpen(ArcView file)
{
uint signature = file.View.ReadUInt32(0);
if (0x53474d != (signature & 0xffffff)) // 'MGS'
{
return(null);
}
int count = file.View.ReadInt16(0x20);
if (count <= 0)
{
return(null);
}
int flag = file.View.ReadUInt16(3);
var dir = new List <Entry> (count);
int index_offset = 0x22;
byte[] name_buf = new byte[16];
for (uint i = 0; i < count; ++i)
{
ushort channels = file.View.ReadUInt16(index_offset + 1);
uint rate = file.View.ReadUInt32(index_offset + 3);
ushort bits = file.View.ReadUInt16(index_offset + 7);
int name_size = file.View.ReadByte(index_offset + 9);
if (0 == name_size)
{
return(null);
}
if (name_size > name_buf.Length)
{
Array.Resize(ref name_buf, name_size);
}
file.View.Read(index_offset + 10, name_buf, 0, (uint)name_size);
if (100 == flag)
{
MgdOpener.Decrypt(name_buf, 0, name_size);
}
index_offset += 10 + name_size;
var entry = new MgsEntry
{
Name = Encodings.cp932.GetString(name_buf, 0, name_size) + ".wav",
Type = "audio",
Size = file.View.ReadUInt32(index_offset),
Offset = file.View.ReadUInt32(index_offset + 4),
Channels = channels,
SamplesPerSecond = rate,
BitsPerSample = bits,
};
if (!entry.CheckPlacement(file.MaxOffset))
{
return(null);
}
dir.Add(entry);
index_offset += 8;
}
return(new ArcFile(file, this, dir));
}
public PcmDecoder(MgsEntry went)
{
Channels = went.Channels & 0x7FFF;
BytesPerChunk = went.BitsPerSample;
int output_size;
if (1 == Channels)
{
output_size = (int)went.Size / BytesPerChunk * ((BytesPerChunk - 4) * 4 + 2);
}
else
{
output_size = (int)went.Size / BytesPerChunk * ((BytesPerChunk - 8) * 4 + 4);
}
m_output = new byte[output_size];
}
public override ArcFile TryOpen(ArcView file)
{
uint signature = file.View.ReadUInt32 (0);
if (0x53474d != (signature & 0xffffff)) // 'MGS'
return null;
int count = file.View.ReadInt16 (0x20);
if (count <= 0)
return null;
int flag = file.View.ReadUInt16 (3);
var dir = new List<Entry> (count);
int index_offset = 0x22;
byte[] name_buf = new byte[16];
for (uint i = 0; i < count; ++i)
{
ushort channels = file.View.ReadUInt16 (index_offset+1);
uint rate = file.View.ReadUInt32 (index_offset+3);
ushort bits = file.View.ReadUInt16 (index_offset+7);
int name_size = file.View.ReadByte (index_offset+9);
if (0 == name_size)
return null;
if (name_size > name_buf.Length)
Array.Resize (ref name_buf, name_size);
file.View.Read (index_offset+10, name_buf, 0, (uint)name_size);
if (100 == flag)
MgdOpener.Decrypt (name_buf, 0, name_size);
index_offset += 10 + name_size;
var entry = new MgsEntry
{
Name = Encodings.cp932.GetString (name_buf, 0, name_size) + ".wav",
Type = "audio",
Size = file.View.ReadUInt32 (index_offset),
Offset = file.View.ReadUInt32 (index_offset + 4),
Channels = channels,
SamplesPerSecond = rate,
BitsPerSample = bits,
};
if (!entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
index_offset += 8;
}
return new ArcFile (file, this, dir);
}
