Hey. The menu has 'Video> Rotate', but the items there are not active https://prnt.sc/sesm8c, and if you hang a rotation on a hot button, then nothing happens.
Although mpv has a console, the --video-rotate = <0-359 | no> option works.
What needs to be done to make it work?
ubuntu 18, smplayer 20.4.2, mpv git-2020-04-03
Sorry for my (google translate) English )