Comment # 2 on bug 1033876 from Tom���� Chv��tal

(In reply to Ferdinand Thiessen from comment #1)
> I can confirm that is is fixed if you trigger a rebuild of mpv (I have
> simply branched mpv from updates and installed it).
> 
> So it seems that libav* got updated in the Update repository without
> triggering mpv to rebuild (as it links against it).

This is just a warning. It does not cause any issues. If needed we can patch
the message to never appear but I wanted it there to see if there are bugs.

With the subtitles it has nothing to do with ffmpeg. It is offloaded to libass
and ffmpeg never touches that.