public override ArcFile TryOpen(ArcView file)
{
int format_count = file.View.ReadUInt16(4);
int count = file.View.ReadUInt16(6);
if (0 == format_count || 0 == count)
{
return(null);
}
uint index_offset = 8;
long base_offset = index_offset + format_count * 0x14 + count * 0x18;
if (base_offset >= file.MaxOffset)
{
return(null);
}
var formats = new List <WaveFormat> (format_count);
for (int i = 0; i < format_count; ++i)
{
var format = new WaveFormat
{
FormatTag = file.View.ReadUInt16(index_offset),
Channels = file.View.ReadUInt16(index_offset + 2),
SamplesPerSecond = file.View.ReadUInt32(index_offset + 4),
AverageBytesPerSecond = file.View.ReadUInt32(index_offset + 8),
BitsPerSample = file.View.ReadUInt16(index_offset + 12),
BlockAlign = file.View.ReadUInt16(index_offset + 14),
};
index_offset += 0x14;
formats.Add(format);
}
var dir = new List <Entry> (count);
for (int i = 0; i < count; ++i)
{
int fmt_index = file.View.ReadUInt16(index_offset);
if (fmt_index > formats.Count)
{
return(null);
}
string name = file.View.ReadString(index_offset + 2, 0x0A);
var entry = new PkwEntry
{
Name = name + ".wav",
Type = "audio",
Offset = base_offset + file.View.ReadInt64(index_offset + 0x10),
Size = file.View.ReadUInt32(index_offset + 0x0C),
IsPacked = true,
Format = formats[fmt_index],
};
if (!entry.CheckPlacement(file.MaxOffset))
{
return(null);
}
entry.UnpackedSize = entry.Size + WaveHeaderSize;
dir.Add(entry);
index_offset += 0x18;
}
return(new ArcFile(file, this, dir));
}
public override ArcFile TryOpen(ArcView file)
{
int format_count = file.View.ReadUInt16 (4);
int count = file.View.ReadUInt16 (6);
if (0 == format_count || 0 == count)
return null;
uint index_offset = 8;
long base_offset = index_offset + format_count*0x14 + count*0x18;
if (base_offset >= file.MaxOffset)
return null;
var formats = new List<WaveFormat> (format_count);
for (int i = 0; i < format_count; ++i)
{
var format = new WaveFormat
{
FormatTag = file.View.ReadUInt16 (index_offset),
Channels = file.View.ReadUInt16 (index_offset+2),
SamplesPerSecond = file.View.ReadUInt32 (index_offset+4),
AverageBytesPerSecond = file.View.ReadUInt32 (index_offset+8),
BitsPerSample = file.View.ReadUInt16 (index_offset+12),
BlockAlign = file.View.ReadUInt16 (index_offset+14),
};
index_offset += 0x14;
formats.Add (format);
}
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
int fmt_index = file.View.ReadUInt16 (index_offset);
if (fmt_index > formats.Count)
return null;
string name = file.View.ReadString (index_offset+2, 0x0A);
var entry = new PkwEntry
{
Name = name + ".wav",
Type = "audio",
Offset = base_offset + file.View.ReadInt64 (index_offset+0x10),
Size = file.View.ReadUInt32 (index_offset+0x0C),
IsPacked = true,
Format = formats[fmt_index],
};
if (!entry.CheckPlacement (file.MaxOffset))
return null;
entry.UnpackedSize = entry.Size + WaveHeaderSize;
dir.Add (entry);
index_offset += 0x18;
}
return new ArcFile (file, this, dir);
}
