Andrea, you are Arch user, if you registered at their bug tracing system related to AUR can you look into this entry? https://aur.archlinux.org/packages/libquicktime see discussion, it also must be noted this July Debian maintainer posted untested ffmpeg5 patch to Debian BTS but it was decided to disable ffmpeg support altogether ... https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1004637 because I used lqtplay literally today while working on some cin-cv code ... I do not want this codebase die ..... can you post link to debian patch there? https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=1004637;filename=24-... and if possible test it? (my main system have ffmpeg 4.4.3 and termux might have some additional weirdness not accounted for)