Gameloft Framework (GLF, 2017-present): LZ4 data serialization

[LolHacksRule]

I want to view the game data, I was stumped on their OBB (APK for Disney Getaway Blast) until I figured out its a ZIP with a custom header for likely the index (idx header) (I can open with 7Zip fine or repair using WinRAR), but many of the files in them, even the TEXTURES AND MODELS have this header of GCBF (Game/Gameloft/Code Binary Format/Framework?), along with the data in a funky format. https://we.tl/t-OEeYMs27KG.

Formats confusing:
TGA/PNG: Usually a ZIP with split KTX'ed files
BDAE: ZIP with NFOs, a hash and the compressed BDAE.
SWF: ZIP with TGAs (SERIALIZED) and SWF.
GAME/LEVEL/TX(LEGO/GETAWAYBLAST/few in Tycoon), UI (Car Tycoon): JSON.
XLS/XLSX (All games)

UPDATE: Glitch isn't an engine, its a graphics api according to internal SDK mentions

[Ekey]

They are probably compressed by something from the LZ series. It looks like a LZ4

[LolHacksRule]

Ok thanks for that. I don't see LZ anywhere in the libraries and DLLs... I see LZMA though...

Code: Select all

Header (4bytes): 47 43 42 46
Byte ordering? (1byte): 02 (?), 07, (?), 09, (?), 50, (?), 7A (??)
Zero (7bytes)
Unknown (1byte): 18
Zero (3bytes)
Binary data before packed data (?bytes)
Zero (11bytes)
Packed data to end (?bytes)

[LolHacksRule]

The Car Tycoon beta ditches this for most files for some reason...

[LolHacksRule]

Turns out I found this https://aluigi.altervista.org/bms/gcbf_versus.bms, sorry for the repost on this topic...

[LolHacksRule]

Could the script have support for autodecompressing LZ4'ed data in zip-compressed files like BDAE, PNG and TGA?

[aluigi]

What you mean?
The files compressed with lz4 are those having the 32bit field "Lz4 " in the table of the archive.

[KL3W]

Hey!

I am having troubles with BDAE files too for LEGO STAR WARS CASTAWAYS videogame?

Any thing to open these files? It seems BDAE files are BRRES files but I can't open them...