It's unstable and unfortunately the situation is not getting better over time as there are constantly new regressions introduced, which makes it unsafe for auto selection. It is also twice as slow as d3d11va on Windows AMD. See also: https://code.ffmpeg.org/FFmpeg/FFmpeg/issues/21692 https://code.ffmpeg.org/FFmpeg/FFmpeg/issues/21704 https://code.ffmpeg.org/FFmpeg/FFmpeg/issues/22342 https://github.com/mpv-player/mpv/issues/16782 https://github.com/mpv-player/mpv/issues/17085 https://github.com/mpv-player/mpv/issues/17175 https://github.com/mpv-player/mpv/issues/17370 https://github.com/mpv-player/mpv/issues/17517 https://github.com/mpv-player/mpv/issues/17593 https://github.com/mpv-player/mpv/issues/17688 Those are only issues from recent months, many of which are not fixed.