Overview mpv is a free (as in freedom) media player for the command line. It supports a wide variety of media file formats, audio and video codecs, and subtitle types.
Reference Manual The reference manual lists all the options and configuration options mpv understands, key bindings, scripting, and other customizations.
Normally, a media player is highly pipelined (future data is prepared in separate threads, so it is available in realtime when the next stage needs it), but backward playback will essentially stall …