Best Compression Methods for 'Specific' Games. Q&A

[78372]

This doesn't makes pzlib non-applicable, try yourself Take two same zlibbed file with different names, use srep+pzlib, you will see.

[Chayan Manna]

Max Payne 3 The Complete Edition:
From 32.47 GB ->> 16.4 GB

Used Method:
For zlib files: pZLib+Srep+delta+lzma
Parameter: pzlib+srep:m3f:l256+delta+lzma:512mb:normal:bt4:27 3:mc1000:lc8
For audio files: msc(tak)+Srep+delta+lzma
Parameter: msc+srep:m3f:l256+delta+lzma:512mb:normal:bt4:27 3:mc1000:lc8
For video files: delta+lzma
Parameter: delta+lzma:512mb:normal:bt4:27 3:mc1000:lc8

Took a lot of time to process srep, because my RAM is 8 GB.

The latest version of pZLib is used with latest reflate libs.

Note: If you increase the RAM usage of LZMA the ratio will be better, but it will take more ram to compress & decompress also.... But decompression speed will increase.
For example: in this parameter "lzma:512mb:normal:bt4:27 3:mc1000:lc8" the RAM usage is 512 MB (at decompression) & it will take 5384 MB (approx) RAM to compress.

[elit]

Originally Posted by Chayan Manna

Max Payne 3 The Complete Edition:
Parameter: msc+srep:m3f:l256+delta+lzma:512mb:normal:bt4:27 3:mc1000:lc8

I see you use highest "lc" parameter for lzma. Can you tell me your general experience with it? Is it much better in general game compression usage or all usages in general? And what gain can be expected from it vs default?
Thank you

[Chayan Manna]

Originally Posted by elit

I see you use highest "lc" parameter for lzma. Can you tell me your general experience with it? Is it much better in general game compression usage or all usages in general? And what gain can be expected from it vs default?
Thank you

There may be LZMA1 streams that have lc>3 which is default. So, better compression ratio may be gained by lc8. But using highest lc may increase the compression time a bit.
I tested it with several files & almost every time I got the best ratio with lc8.