Talk:PlayStation archive (PSARC): Difference between revisions

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(the structure table in talk page was obsolete, was used experimentally before writing the main page, now all has been moved to main page, please edit main page instead... or use talk page for further speculation)
 
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==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"?>
<data>
  <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" /><!-- only valid for "max block size" == 2^16 -->
    </array>
  </struct>
</data>
PSARC header example:
'''Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F'''
00000000  <span style="background:#ff6666;">50 53 41 52</span> <span style="background:#66ff66;">00 01 00 04</span> <span style="background:#ffff66;">7A 6C 69 62</span> <span style="background:#6666ff;">00 01 23 BA</span>  PSAR....zlib..#º
00000010  <span style="background:#dd00dd;">00 00 00 1E</span> <span style="background:#dddd00;">00 00 09 16</span> <span style="background:#dddddd;">00 01 00 00</span> <span style="background:#d0000d;">00 00 00 02</span>  ................
00000020  <span style="background:#ff6666;">00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00</span>  ................
00000030  <span style="background:#ff6666;">00 00 00 00 00 00</span> <span style="background:#66ff66;">01 79 D9 00</span> 00 01 23 BA A9 A6  .......yÙ...#º©¦
00000040  AB EE E6 73 40 2A E6 C3 37 24 3F C1 81 16 00 00  «îæs@*æÃ7$?Á....
00000050  00 02 00 00 00 1D 90 00 00 01 45 3B 5A 08 E7 AC  ..........E;Z.ç¬
{| class="wikitable"
|-
! !! Offset !! Size !! Name !! Example !! Value (conversion) !! Notes
|-
|rowspan="8" style="background-color:#50534152; color:#000FFF;"|'''Header'''
| style="background-color:#ff6666;" | 0x00 || style="background-color:#ff6666;" | 0x04 || '''magic''' || 50 53 41 52 || PSAR || '''P'''lay'''S'''tation '''Ar'''chive
|-
| style="background-color:#66ff66;" | 0x04 || style="background-color:#66ff66;" | 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
|-
| style="background-color:#ffff66;" | 0x08 || style="background-color:#ffff66;" | 0x04 || '''compression type''' || 7A 6C 69 62 || zlib || zlib (default) or lzma
|-
| style="background-color:#6666ff;" | 0x0C || style="background-color:#6666ff;" | 0x04 || '''table of content length''' || 00 01 23 BA || 0x123BA ||
|-
| style="background-color:#dd00dd;" | 0x10 || style="background-color:#dd00dd;" | 0x04 || '''table of content entries size''' || 00 00 00 1E || 30 Bytes || Default is 30 bytes
|-
| style="background-color:#dddd00;" | 0x14 || style="background-color:#dddd00;" | 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
|-
| style="background-color:#dddddd;" | 0x18 || style="background-color:#dddddd;" | 0x04 || '''block size''' || 00 01 00 00 || 65536 Bytes || Default is 65536 Bytes
|-
| style="background-color:#d0000d;" | 0x1C || style="background-color:#d0000d;" | 0x04 || '''archive flags''' || 00 00 00 02 || 2 || Default is 2. Unknown yet but is a "bit value" so 2 is a single flag
*
*
|-
|rowspan="2" style="background-color:#50534152; color:#000FFF;"|'''TOC'''
| style="background-color:#ff6666;" | 0x20 || style="background-color:#ff6666;" | 0x16 || '''name digest''' || 00 00 ... 00 00  || - || 128-bit md5 hash
|-
| style="background-color:#66ff66;" | 0x36 || style="background-color:#66ff66;" | 0x04 || '''index list''' || - || - || Size of the (compressed per default) index list.
|}

Latest revision as of 20:17, 20 March 2017

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