Feature request: Support for .aseprite/.ase files from LibreSprite/Aseprite

[GilkleberMedeiros]

Hello, I've used your application theses days to recover some files from a corrupted windows 10 partition. Unfortunately, I's not able to recover the .ase files from my pixel arts and pixel art studies, although I's able to recover its .png versions.

I tried to build my own version of the app with that support, but without success. I would like to implement this feature and contribute on this project (if I get some time to).

Official documentation about theses files:
aseprite site docs
file structure docs

Also, if it can help, talking with ChatGPT about the problem it told me:
magic number is 0xA5E0
look for those bytes at positions 4-5 (little-endian order) like this: 4th-byte 5th-byte -> E0 A5

[GilkleberMedeiros]

Hi, I Actually did it! I only tested the feature on a linux ubuntu (24.xx x64) machine in a 5GB partition and it was able to recover all .ase/.aseprite files (erased or not).

test recording

I couldn't push it to here because I hadn't permission, but anyone can check commit on my fork

Important to comment that the first implementation of this feature had a file end detect issue (photorec couldn't determine well the end of the .aseprite files, resulting in really bigger files). This bug was solved by adding the default data_check_size function as data_check function.

Even with that, on my disk, photorec just recovered duplicated files (after running feature with that bug that fulfilled my disk). Maybe is just a issue with my disk.