Considering that mpv[1] recommends FFmpeg I would say FFmpeg won. I say that because mpv is one of the projects that mostly use parts of FFmpeg internals and a

Considering that mpv[1] recommends FFmpeg I would say FFmpeg won. I say that because mpv is one of the projects that mostly use parts of FFmpeg internals and also one of the first projects to use modern futures (and deprecate older versions too). [1]: https://github.com/mpv-player/mpv#ffmpeg-vs-libav https://github.com/mpv-player/mpv#ffmpeg-vs-libav