Comment by hardwaregeek

It's interesting. I've heard apocryphally that FFmpeg is used in many production video systems (https://twitter.com/id_aa_carmack/status/1258531455220609025). However, as far as I can tell, you can either use the quite low level libraries like libavfilter, or you can rely on the CLI tool. The former seems rather tedious; you have to set up the scaffolding yourself, chain all the demuxer to the filters to the muxer, etc. The latter is a very weird interface; you have to shell out to this CLI tool. Is that really the case?