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

[78372]

AC III has no files worth with precomp. What you did is wasted your time.

I am actually surprised to see precomp, we already have pzlib to apply on zlibbed file, what's the use of precomp these days unless you need packmp3/packjpg?

[ZakirAhmad]

Originally Posted by 78372

AC III has no files worth with precomp. What you did is wasted your time.

I am actually surprised to see precomp, we already have pzlib to apply on zlibbed file, what's the use of precomp these days unless you need packmp3/packjpg?

I guess u havent scanned the exes etc with zlib scanner, Almost in 99% of cases they contain zlib streams whech inturn reduces their compression 5 to 10mb.

pzlib doent work on every files. for eg. the files from COD black ops, precomp works on them while pzlib not.

[78372]

Originally Posted by ZakirAhmad

I guess u havent scanned the exes etc with zlib scanner, Almost in 99% of cases they contain zlib streams whech inturn reduces their compression 5 to 10mb.

pzlib doent work on every files. for eg. the files from COD black ops, precomp works on them while pzlib not.

Did you tried with reflate libs?

Plus monster compression isn't worth that much for me, adding some more minutes only to reduce 2-5mb

[ZakirAhmad]

Originally Posted by 78372

Did you tried with reflate libs?

Plus monster compression isn't worth that much for me, adding some more minutes only to reduce 2-5mb

yeah i tried with reflate libs too.

when u r targetting perfection in compression, u didnt want to leave anything behind. BTW when exe's size is >150mbs u can achieve more.

precomp doesnt add mimytes to decompress them, only 1 to 2 seconds.

[78372]

Seems interesting, I thought reflate can precompress better than precomp. Which precomp version are you using?

[ZakirAhmad]

Originally Posted by 78372

Seems interesting, I thought reflate can precompress better than precomp. Which precomp version are you using?

precomp 038.
i guess any version of precomp works on them but not pzlib.
pzlib has some problems like too much ram utilization during compression and decompression. use of chunk(main problem) because u have to find the exact chuck for games. In reflate part of pzlib, u can only set level manually, u cant set memory, windowsbits, parameters, I guess which causes creation of diff file and hence makes compression worse(in some cases).
pzlib hase many good things as well like faster decompression, compression, multithreading( i have no idea why the pzlib is only a bit faster in decompression than precomp).

[Vulkan]

Try Pzlib with these settings
pzlib e -rx -x

[ZakirAhmad]

Originally Posted by Vulkan

Try Pzlib with these settings
pzlib e -rx -x

it is a bug with pzlib, i reported it to razor.

[Vulkan]

What is the best lzma settings I found this
lzma:a1:mfbt4:d640m:fb273:mc1000:lc8:pb4
And I use 640m dictionary because I have 8gb of ram

[ZakirAhmad]

Originally Posted by doofoo24

which file has zlib ?
there forge, pck , bik.
seem to me you test it on the only pdf file Manual
i get 2.57gb on forge file with afr+srep+lolz...
i used precomp only nada

Normall, i distribute game in 4 archives, 1st one game data (in this case .forge ) and i used compression method afr+srep+lolz.
2nd contains sound files which (srep+lolz).
3rd contains videos (bpk+srep)
and 4th include .exes .txt pdf some images like .ico .dlls etc (for ur kind info which contains zlib streams ).

and also i compressed .forge files of ac 3 to 2.53gb

[Andu21]

Originally Posted by ZakirAhmad

precomp 038.

Why not take advantage of latest precomp version?

[KaktoR]

Need for Speed Payback

Data\Win32\configurations\superbundleinstallpackag e\cas_01.cas
plz4+srep+lzma => 421.236.736 Bytes
srep+lzma => 501.354.496 Bytes

[Razor12911]

Originally Posted by KaktoR

Need for Speed Payback

Data\Win32\configurations\superbundleinstallpackag e\cas_01.cas
plz4+srep+lzma => 421.236.736 Bytes
srep+lzma => 501.354.496 Bytes

Nice at least ztool's other codecs apart from pzlib still work on something newer.

[KaktoR]

Originally Posted by Razor12911

Nice at least ztool's other codecs apart from pzlib still work on something newer.

Yes, but ztool is very unstable (at least lz4). It just hang now for over 3 hours on a single file.

I have just tested with standard params (no parameters were given). Will try with different parameters instead.

[oltjon]

Originally Posted by Razor12911

Nice at least ztool's other codecs apart from pzlib still work on something newer.

why not make public the latest version???