Talk:PlayStation archive (PSARC): Difference between revisions
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Revision as of 04:42, 14 June 2014
PSARC structure notes
Debian psarc Kplugin structure. From Manuel Stahl (thymythos) @ http://opendesktop.org/content/show.php/PSARC+file+header?content=162745
<?xml version="1.0" encoding="UTF-8"?>
<struct name="header">
<primitive name="magic" type="UInt32" />
<primitive name="version" type="UInt32" />
<primitive name="compression" type="UInt32" />
<primitive name="TOC length" type="UInt32" />
<primitive name="TOC entry size" type="UInt32" />
<primitive name="num_entries" type="UInt32" />
<primitive name="max block size" type="UInt32" />
<primitive name="archive flags" type="UInt32" />
<array name="TOC" length="num_entries">
<struct name="entry">
<array name="MD5" length="16"><primitive type="UInt8"/></array>
<primitive name="zIndex" type="UInt32" />
<bitfield name="length" width="40" type="unsigned" />
<bitfield name="offset" width="40" type="unsigned" />
</struct>
</array>
<array name="block sizes" length="num_entries">
<bitfield name="size" width="16" type="unsigned" />
</array>
</struct>
PSARC header example:
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00000000 50 53 41 52 00 01 00 04 7A 6C 69 62 00 01 23 BA PSAR....zlib..#º 00000010 00 00 00 1E 00 00 09 16 00 01 00 00 00 00 00 02 ................
| Offset | Size | Name | Example | Value (conversion) | Notes |
|---|---|---|---|---|---|
| 0x00 | 0x04 | magic | 50 53 41 52 | PSAR | PlayStation Archive |
| 0x04 | 0x04 | version | 00 01 00 04 | v1.4 | First 2 bytes is the main version, next 2 bytes is the subversion and are processed separatedlly, so 0001.0004 is "translated" to 1.4 by the system |
| 0x08 | 0x04 | compression type | 7A 6C 69 62 | zlib | zlib (default) or lzma |
| 0x0C | 0x04 | table of content length | 00 01 23 BA | 0x123BA | |
| 0x10 | 0x04 | table of content entries size | 00 00 00 1E | 30 Bytes | Default is 30 bytes |
| 0x14 | 0x04 | number of entries | 00 00 09 16 | 1+2325 files | The filecount includes the "file path/names definitions" as an additionall file always placed at first position in the list and without an assigned ID |
| 0x18 | 0x04 | block size | 00 01 00 00 | 65536 Bytes | Default is 65536 Bytes |
| 0x1C | 0x04 | archive flags | 00 00 00 02 | 2 | Default is 2. Unknown yet but is a "bit value" so 2 is a single flag |