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

[L0v3craft]

Someone tried to precompress Baldur's Gate 3?

Sample (Textures_2.pak):

https://gofile.io/d/xXO3cs

Another sample:

https://gofile.io/d/0n69EX

[Razor12911]

Originally Posted by L0v3craft

Someone tried to precompress Baldur's Gate 3?

Sample (Textures_2.pak):

https://gofile.io/d/xXO3cs

Another sample:

https://gofile.io/d/0n69EX

I made a quick modification to the lspk script, I'm no expert when it comes to bms scripting but eh...

Shared.pak

Compressed 1 file, 78,790,712 => 278,618,150 bytes. Ratio 353.62%
Compression time: cpu 0.05 sec/real 2.87 sec = 2%. Speed 27.47 mB/s

via bg3.xtl (generated using bms2xtl)

bms2xtl.ini

[Config]
SafeMode=1
UserInput=
Exclude=copy
lz4=lz4hc:l9

use liblz4.dll that comes with xtool attachment

Note that on multi pak files, the script will fail that's why safemode is on, for the streams in multi pak files, you have to make sure that freearc captures these files in sequence else the streams will be left behind.

I don't have this game and I can't add support for multi pak files so hope that this approach works.

[Fak Eid]

xtool:mkraken:8+srep_new+lolz

Grand Theft Auto III: The Definitive Edition - 3.17GB
Grand Theft Auto Vice City: The Definitive Edition - 6.8GB
Grand Theft Auto San Andreas: The Definitive Edition - 14.2GB

[Fak Eid]

So, I have a question here:

The problem with kraken compressor is that it takes a lot of CPU memory and takes lot of time to extract.

So, while trying to compress GTA Trilogy using kraken:8, it takes around 45 mins to install all three games on average PC. Is there anyway to speed up the extraction process by adding a pre-compressor to the algo?

[Masquerade]

Originally Posted by Fak Eid

So, I have a question here:

The problem with kraken compressor is that it takes a lot of CPU memory and takes lot of time to extract.

So, while trying to compress GTA Trilogy using kraken:8, it takes around 45 mins to install all three games on average PC. Is there anyway to speed up the extraction process by adding a pre-compressor to the algo?

The Oodle family of compression algorithms are very CPU intensive. You can't speed it up.

XTool or Oodlereck, which processes the kraken streams, is the precompressor. Precompressors decompress data and compress it back during installation.

[Illume]

Originally Posted by Razor12911

for the streams in multi pak files, you have to make sure that freearc captures these files in sequence

it doesn't seems to work
FreeArc is correctly sorted files
Textures.pak
Textures_1.pak
Textures_2.pak
Textures_3.pak

solid .arc, bg3.xtl made of separated pak's
Compressed 4 files, 13,743,119,215 => 16,734,251,958 bytes. Ratio 121.76%

per file (not solid) .arc, bg3.xtl made of separated pak's
Compressed 4 files, 13,743,119,215 => 16,734,252,036 bytes. Ratio 121.76%

           Pos            Size      Compressed   Files
------------------------------------------------------
            31   4,293,937,007   7,285,063,990       1
 7,285,064,021   4,293,777,600   4,293,780,186       1
11,578,844,207   4,294,919,680   4,294,922,266       1
15,873,766,473     860,484,928     860,485,594       1

solid .arc, bg3.xtl made of joined pak's
Compressed 4 files, 13,743,119,215 => 16,734,251,958 bytes. Ratio 121.76%

per file (not solid) .arc, bg3.xtl made of joined pak's
Compressed 4 files, 13,743,119,215 => 13,743,127,639 bytes. Ratio 100.00%

so as you can see only first file (Textures.pak) is decompressed
and it's doesn't matter if you join all Textures*.pak to one file and made bg3.xtl from it