

ffmpeg. It can extract video streams, audio, images. It can encode and decode video and audio, can split video files by chapters, can encode subtitles, etc.
There’s very little that ffmpeg can’t do with video and audio. It also has one of the largest man pages on Linux.













That moment when you’re stuck on a part of your code and you figure it out, write it, test it and it just works.
It’s rare, but when it happens, it feels very good.