FFmpeg
FFmpeg now supports JPEG XL and AVIF: how to convert images
This is an update to the previous post Best FFmpeg commands Full support available since FFmpeg v5.1 LTS. Build dependencies These libraries should be compiled and installed: * libjxl - https://github.com/libjxl/libjxl * aom - https://aomedia.googlesource.com/aom Then FFmpeg should be compiled with options --enable-libjxl