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<blockquote data-quote="Barubary" data-source="post: 2638536" data-attributes="member: 160010"><p>ACF approximate file format (which is enough to unpack the files):</p><p></p><p>[code]{</p><p>ÂÂ char[4] magicHeader; // 'acf'</p><p>ÂÂ u32 headerSize; // should be 0x20</p><p>ÂÂ u32 dataStart; // start of file data</p><p>ÂÂ u32 numFiles; // amount of files inside</p><p>ÂÂ u32 unknown1; // I've only seen 1 here</p><p>ÂÂ u32 unknown2; // I've only seen 0x32 here</p><p>ÂÂ u32[2] padding; // at least, I think it is</p><p>ÂÂ FATENTRY[numFiles]; // first entry is dummy</p><p>} ACFHEADER</p><p></p><p>{</p><p>ÂÂ u32 relativeOffset; // offset relative to dataStart (if 0xFFFFFFFF, ignore it)</p><p>ÂÂ u32 outputSize; // Size of (decompressed) file. Might be a bit more then decompressed size in compression header; pad it with 0s</p><p>ÂÂ u32 inputSize; // if file is LZSS-compressed, size of compressed data. 0 if not compressed.</p><p>} FATENTRY[/code]</p><p></p><p>You can extract the contents of a .acf file with <a href="http://www.propl.nl/javaprogs/acfdump.jar" target="_blank">this java program</a>. Run it with CODEjava -jar acfdump.jar *</p><p></p><p>example:</p><p></p><p>java -jar acfdump.jar data_game.acf</p><p>It will try to extract any given file, and any file in a given folder with the .acf extension. (it will automatically decompress the files if necessary)</p></blockquote><p></p>
[QUOTE="Barubary, post: 2638536, member: 160010"] ACF approximate file format (which is enough to unpack the files): [code]{ ÂÂ char[4] magicHeader; // 'acf' ÂÂ u32 headerSize; // should be 0x20 ÂÂ u32 dataStart; // start of file data ÂÂ u32 numFiles; // amount of files inside ÂÂ u32 unknown1; // I've only seen 1 here ÂÂ u32 unknown2; // I've only seen 0x32 here ÂÂ u32[2] padding; // at least, I think it is ÂÂ FATENTRY[numFiles]; // first entry is dummy } ACFHEADER { ÂÂ u32 relativeOffset; // offset relative to dataStart (if 0xFFFFFFFF, ignore it) ÂÂ u32 outputSize; // Size of (decompressed) file. Might be a bit more then decompressed size in compression header; pad it with 0s ÂÂ u32 inputSize; // if file is LZSS-compressed, size of compressed data. 0 if not compressed. } FATENTRY[/code] You can extract the contents of a .acf file with [url=http://www.propl.nl/javaprogs/acfdump.jar]this java program[/url]. Run it with CODEjava -jar acfdump.jar * example: java -jar acfdump.jar data_game.acf It will try to extract any given file, and any file in a given folder with the .acf extension. (it will automatically decompress the files if necessary) [/QUOTE]
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