For anyone looking to dive deeper and actually understand how FFmpeg and libav work under the hood, I highly recommend Leandro Moreira's tutorial [0]. For me, it's hands down the best and most comprehensive explanation out there.

[0] https://github.com/leandromoreira/ffmpeg-libav-tutorial

wow we're at ffmpeg 101 already? ffmpeg 8 felt like yesterday

Here is one more guide

https://news.ycombinator.com/item?id=33771445

FFmpeg, my beloved.

ffmpeg is a superpower. I use it for assembling all the video bits into something playable