This fixes commit be7d0635c945bd3f033864825fda64caf0d19417.

Suggested by rider@.

Seems it works better there.

I think VLC is more natural for former Windows-users.
And I trust it more then mplayer.
Well, it is QT-interface, but smplayer too.

It was removed from Sisyphus.
See 941af7bd "xorg+vaapi: drop libva-driver-vdpau".

Smplayer don't depend on mplayer now: it can use mpv as well.