PlayStation archive (PSARC): Difference between revisions
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'''C:\Portables\psarc>psarc.exe help''' | '''C:\Portables\psarc>psarc.exe --help''' | ||
'''usage:''' | '''usage:''' | ||
psarc verb [options] [file...] | psarc verb [options] [file...] |
Revision as of 19:09, 14 July 2014
Description
PlayStation ARChive is a container that allows subfolders and per-file compression using Zlib or lzma with 9 compression levels
- Notes:
- lzma with compression level 9 has a compression ratio of around 50% of the size for general files
- some files doesnt admits much compression like .BIK videos (max compression ratio for .BIK doesnt reachs 1% or 2%). For this reason is better to dont use compression with videos because the size reduction is ridiculous
Structure
See Discussion page
Header
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 | Absolute paths | Default is 0. See table below |
PSARC Archive Flags are stored in the header as a big endian number, and defines the characteristics and structure of the archive when it was created
Hexadecimal (big endian) |
Decimal | Binary (flags) |
Flag Name | Notes |
---|---|---|---|---|
00 00 00 00 | 0 | 00000000 00000000 00000000 00000000 | relative archive paths (no slash character at the start of every line) | default value when using command line or xml |
00 00 00 01 | 1 | 00000000 00000000 00000000 00000001 | ignorecase archive paths (all characters in capitals) | same than --ignorecase in command line and ignorecase="true" in the xml |
00 00 00 02 | 2 | 00000000 00000000 00000000 00000010 | absolute archive paths (slash character added at the start of every line) | same than --absolute in command line and absolute="true" in xml |
TOC Table
Blocks info table
File table
The compression is applyed "per-block", is posible to know the compression level by looking at the zlib header
byte index | bit 7 | bit 6 | bit 5 | bit 4 | bit 3 | bit 2 | bit 1 | bit 0 |
---|---|---|---|---|---|---|---|---|
[0] CMF | Compression info
|
Compression method
| ||||||
[1] FLG | FLEVEL
|
FDICT
(Preset dictionary) If set, a DICT dictionary identifier is present immediately after the FLG byte. The dictionary is a sequence of bytes which are initially fed to the compressor without producing any compressed output. DICT is the Adler-32 checksum of this sequence of bytes (see the definition of ADLER32 below). The decompressor can use this identifier to determine which dictionary has been used by the compressor. |
FCHECK
value must be such that CMF and FLG, when viewed as a 16-bit unsigned integer stored in MSB order (CMF *256 + FLG), is a multiple of 31. |
PSARC Tools
There are several versions of PSARC related tools, features has been implemented along the different versions and is hard to keep a record of them, please help filling the info in the page
GUI versions are derivated from the command line versions
Command line versions
Open PSARC PS3 Extractor
By Matthieu Milan. It allows you to extract PSARC archive data in linux
Source code: https://www.ferb.fr/ps3/PSARC/
PSARC tool
Port of Matthieu Milan's open PSARC PS3 extractor to Windows. Tool written by Matthieu Milan (@usineur). Ported to VS2012 by AlexAltea.
source code: https://github.com/AlexAltea/psarc-tool
Usage: psarc [option] filename Options: -l Create a text file that lists the file id, size, and name of every file in the archive. -x Extracts all files. -e START END Extracts files with the file id specified by the range between START and END (inclusive).
PSARC Extractor
By Insomniac @ xentax forums, download link: http://www.ps3hax.net/downloads.php?do=file&id=452 and http://www.modcontrol.com/Board/pc-tools/28869-psarc-ps3-extractor.html
Usage: PSARC [flag] <fileName> Flags: -l Creates a text file that lists the File ID, Size, and Name of every file in the archive. -e START END Extracts files with the File ID specified by the range between START and END (inclusive). <blank> Extracts all files.
- Examples:
- Extract all files from data.psarc : PSARC data.psarc
- Create list of files from data.psarc : PSARC -l data.psarc
- Extract file with File ID 5 : PSARC -e 5 5 data.psarc
- Extract files with File ID 7 through 12 : PSARC -e 7 12 data.psarc
The flag -l creates a .txt file with a list of all the contents of the archive, the info included is: File ID, File original size, and File path inside psarc archive
Example of a .txt file created with the -l flag:
ID Size Name 1 | 7,39 KB | /my/files/dummies/dummy1.bin 2 | 8,80 KB | /my/files/dummies/dummy2.bin 3 | 3,30 KB | /my/files/dummies/dummy3.bin
PSARC
1.60.008 SDK : x 1.92.001 SDK : x 3.40.001 SDK : psarc-138.002 (C++), built on Feb 15 2010 at 16:17:41 3.41.001 SDK : psarc-138.002 (C++), built on Feb 15 2010 at 16:17:41 3.60.001 SDK : psarc-138.002 (C++), built on Feb 15 2010 at 16:17:41 3.70.001 SDK : psarc-138.002 (C++), built on Feb 15 2010 at 16:17:41 4.00.001 SDK : psarc-1310.001 (C++), built on Nov 16 2011 at 03:31:36 4.50.001 SDK : psarc-1310.001 (C++), built on Nov 16 2011 at 03:31:36
- From xentax forums: http://forum.xentax.com/viewtopic.php?p=44228&sid=0a7b5167ba4599f71f85471119c918a6#p44228 Download link: http://www.mediafire.com/?o3wy35uublreh
help
'''C:\Portables\psarc>psarc.exe --help''' '''usage:''' psarc verb [options] [file...] psarc --xml=XMLFILE '''verbs:''' create Create an archive. (default) extract Extract contents of an existing archive. list List contents of an existing archive. dump Print detailed info about archive for unit testing. verify Verify an existing archive's structural integrity and ensure that all files can be decompressed. dtd Display a DTD describing psarc's XML input syntax. '''general options:''' -h, --help Show this help message and exit. --version Display version and exit. -d, --debug Debug: Show debug messages. -v, --verbose Verbose: Show additional progress. (default) -q, --quiet Quiet: Don't show any progress. -y, --overwrite Overwrite existing files when creating/extracting. --xml=XMLFILE XML list of actions to perform. '''create options:''' -oFILE, --output=FILE Archive filename to create. -IINPUTFILE, --inputfile=INPUTFILE Inputfile listing files to archive. Consider --xml instead, which gives you more control. -m, --mself Create a PSARC-MSELF hybrid file for PS3, which can contain encrypted special files like SDATA, SPRX, and SPU SELF. --zlib Use Zlib when compressing. (default) --lzma Use LZMA when compressing. (usually for PS3 PSN) --level=N Compression quality. 1 is fastest, 9 is best. (default = 9) -N, --nocompress Store all files uncompressed in the archive. -bBS, --blocksize=BS Use blocks of size BS. (default = 64KiB) -jJOBS, --jobs=JOBS Compression threads to run at a time. (default = number of CPUs) -sREGEX, --strip=REGEX Perl-compatible regex specifying a prefix to strip from the pathnames stored in the archive. This may be specified more than once. (default = current dir) -S, --strip-all Strip all paths from files stored in the archive. -a, --absolute Make the paths within the archive absolute. -R, --relative Make the paths within the archive relative. (default) -i, --ignorecase Make the archive directory case-insensitive. --exclude=WILDCARD Wildcard specifying files to exclude. --skip-missing-files If set then ignore it when a file cannot be found. --mergedups Compare the content of all files, and merge identical files so that only one copy of the data is included. '''extract options:''' --input=FILE Archive to extract files from. (default is first file argument) --to=DIRECTORY Directory to write extracted files to. (default is current directory)
verify
'''C:\Portables\psarc>psarc.exe verify c:\psarctests\custom_folders.psarc''' Verifying c:\psarctests\custom_folders.psarc Validating 1: Folder1/Image1.bmp (6220854 bytes) Validating 2: Folder2/Folder21/Image21.png (6142 bytes) Validating 3: Folder3/Folder31/Folder311/Image311.jpg (12524 bytes) Archive OK
Validating <file ID/number>: | file path inside psarc archive | (file original size in bytes) |
list
'''C:\Portables\psarc>psarc.exe list c:\psarctests\custom_folders.psarc''' Listing c:\psarctests\custom_folders.psarc Folder1/Image1.bmp (6220854/6220854 100%) Folder2/Folder21/Image21.png (157/6142 2%) Folder3/Folder31/Folder311/Image311.jpg (209/12524 1%)
file path inside psarc archive | (file compressed size | file original size | compression percentage) |
- Notes:
- In the compression percentage: 100% is no reduction, 0% is a huge reduction
dump
'''C:\Portables\psarc>psarc.exe dump c:\psarctests\custom_folders.psarc''' Dumping c:\psarctests\custom_folders.psarc Folder1/Image1.bmp os=6220854 cs=6220854 fb=2 Folder2/Folder21/Image21.png os=6142 cs=157 fb=97 Folder3/Folder31/Folder311/Image311.jpg os=12524 cs=209 fb=98
file path inside psarc archive | file original size | file compressed size | file block start offset ? |
dtd
The output of this command is a layout that defines the structure of an .xml document. See: http://www.w3schools.com/DTD/
'''C:\Portables\psarc>psarc.exe dtd''' <!ELEMENT psarc (create|extract)+> <!ELEMENT create (compression|strip|exclude|file|directory|filelist)+> <!ATTLIST create archive CDATA #IMPLIED absolute (true|false) "false" ignorecase (true|false) "false" mergedups (true|false) "false" stripall (true|false) "false" blocksize CDATA "65536" jobs CDATA #IMPLIED skipmissingfiles (true|false) "false" format (psarc|psarc-mself) "psarc" overwrite (true|false) "false"> <!ELEMENT compression EMPTY> <!ATTLIST compression type (zlib|lzma) "zlib" level (1|2|3|4|5|6|7|8|9) "9" enabled (true|false) "true"> <!ELEMENT strip EMPTY> <!ATTLIST strip regex CDATA #REQUIRED> <!ELEMENT exclude EMPTY> <!ATTLIST exclude regex CDATA #IMPLIED wildcard CDATA #IMPLIED> <!ELEMENT file (CDATA)> <!ATTLIST file wildcard CDATA #IMPLIED regex CDATA #IMPLIED path CDATA #IMPLIED archivepath CDATA #IMPLIED fromarchive CDATA #IMPLIED compressed (true|false) #IMPLIED skipifmissing (true|false) #IMPLIED> <!ELEMENT filelist EMPTY> <!ATTLIST filelist path CDATA #REQUIRED> <!ELEMENT directory EMPTY> <!ATTLIST directory path CDATA #REQUIRED archivepath CDATA #IMPLIED fromarchive CDATA #IMPLIED compressed (true|false) #IMPLIED skipifmissing (true|false) #IMPLIED> <!ELEMENT extract (file)+> <!ATTLIST extract archive CDATA #IMPLIED input CDATA #IMPLIED to CDATA #IMPLIED stripall (true|false) "false" skipmissingfiles (true|false) "false" overwrite (true|false) "false">
- DTD Notes:
- Elements are defined in the DTD as: <!ELEMENT element-name (element-content)>
- Attributes are defined in the DTD as: <!ATTLIST element-name attribute-name attribute-type attribute-value>
- Elements that contains childrens elements that can be repeated several times are defined with a +
- Character strings attribute data types are defined with: CDATA
- Required attributes are defined with: #REQUIRED, and optional attributes with: #IMPLIED
Based in the DTD layout is posible to create an .xml layout that automatizes all the actions of the tool, this example is a generic layout containing all the elements and attributes availables together
Code Sample
- Notes:
- The purpose of this XML is to use it as a base layout containing all, but is not posible to use it like that, is needed to delete the tags that are not needed for a specific case, the ones that are incompatibles with other tags, and is needed to add paths, etc...
- Some attributes appears as common in the DTD for "create" and "extract" but are not common, some of them has been deleted to avoid mistakes... but probably is needed to delete some more
- Is posible to generate this kind of .xml by using as the source the output of the "list" command after applying over it some character strings replacing using regular expressions with a tool like http://findandreplace.codeplex.com/#
extract
create
xml
extract
create
Total Commander plugin
http://www.totalcmd.net/plugring/PSARC.html
GUI versions
PS3 PSARC GUI
It's a graphical user interface to view, extract or create psarc archives. GUI written by aldo, unknown psarc tool used internally
Download link: http://aldostools.org/ps3_psarc_gui.rar
Games or Apps using PSARC files
- Other games that probably uses PSARC's
- Uncharted 1?, and 3?
- Killzone colletion ?
- God of War. III ?
- God of War. Collection ?
- other Motorstorms ?
- Rebuild notes:
- Mass effect 3 MAIN.PSARC contains a folder with generic files (compressed with level 9) and another folder with .BIK videos (not compressed at all). In the creation options suggested above in the table the compression level is not defined and this means all them will use the default compression level 9 (so the .BIK files will have an 1% or 2% of compression ratio). This is not how the original file was created (but works), it seems there is a way to define specific compression levels "per file" or "per folder" (by using a DTD.XML filelist?)
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