LZ4 VS 7-Zip-zstd

Second. Unpack recovery.img.lz4 from AP, dump that with https://github.com/lz4/lz4/releases. Copy recovery.img to your phone, patch with magisk. Leave recovery mode on.

If anyone just cares for speed instead of compression I’d recommend lz4 [1]. I only recently started using it. Its speed is almost comparable to memcpy.

[1] https://github.com/lz4/lz4

gonna go off-topic, but doesn't LZ4 exists? I know IOI Interactive uses it for HITMAN 3.

E: Realtime compression (A good compression library like Zstandard can make a game less than half the size while taking a tiny amount of CPU power when loading stuff. I think thats a pretty worthwhile trade.) (ZSTD github) (LZ4 github)

lz4 for maximum decompression speed, for data that is often read but rarely written

That's great news. I implemented LZ4 for the Apple II, but Yann Collet is the creator of the algorithm.

Getting lost in material models is tempting. But, at this point you are overdue for working on your own asset pipeline. glTF is great. But, you should learn how to do it yourself. The hardest part will be reading source asset files. The FBX SDK is painful. Assimp isn't great either. Writing your own exporter to your own intermediate text format from Maya or Blender would be good if you are up for it. From whatever source, make your own archive format and binary formats for meshes, animations, textures and scenes. Use https://github.com/lz4/lz4 for compression. You should be able to decompress a list of assets into a big linear array and use them right there with just a bit of pointer fix-up. Minimize the amount of memory you have to touch from start to finish. Data that is going to the GPU (textures, vertex/index buffers) should decompress straight into mapped buffers for fast uploads.

Oodle Kraken and lz4 are a thing.

I'm not a fan of the stacked bar charts, I like the table of data for "Benchmarks" on the github source page: https://github.com/lz4/lz4

It makes it very clear where LZ4 fits into comparisons with compression speed, decompression speed and compression ratio

It's hard to tell, how much since the latest lz4 1.9 has been improved, because the (benchmarks)[https://github.com/lz4/lz4/commit/31763c59fca9a38bc697cd37f591d6ba385f7614#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5] are executed with different processors

if you're able to flash twrp (following an xda thread), another option is using this version of 7zip to extract your boot.img from AP>boot.img.lz4>boot.img. https://github.com/mcmilk/7-Zip-zstd/releases

Try this

Even better, there's a fork of 7zip that supports better performing compressions such as Zstandard. https://github.com/mcmilk/7-Zip-zstd/

My bad, I forgot I installed extra codecs to my 7-zip install, you need to add zstandard codecs to your 7-zip or just use https://github.com/mcmilk/7-Zip-zstd

if you do not like the alert message that comes out when booting you can modify it by another image modifying the param file that is in the BL file (along with the other AP , CSC, CP, HOME-CSP) in the firmware you downloaded, unzip the param lz4 file using this modified 7zip 7zip Zs Github And inside this file will be param.bin which contains all the images that are used in the bootloader, from there you can with an image tool modify the files that are there with what you want (the logo file.jpg for some reason has no effect so, it only modifies svb_orange.jpg and booting_warning.jpg)

https://github.com/mcmilk/7-Zip-zstd try using this version of 7 zip to extract it

I compressed it using 7zip-zstd: https://github.com/mcmilk/7-Zip-zstd/releases