[MPlayer-dev-eng] VAAPI/X11 video output driver

[Andy Furniss]

Mark Thompson wrote:

> See attached for the whole patch.

Briefly tested on gallium vaapi on a radeonsi card and it seems OK.

One nit with the vo is that for 16/9 anamorphic eg 720x576 -> 1024x576 I
get a 720x576 window with the 16/9 image scaled down in the middle with
bars top & bottom. This doesn't happen with -vo x11 -zoom - but then in
other ways it's not like that anyway, specifically I am getting working
vsync, which I notice you don't. Maybe using dri3 + amdgpu ddx + glamor
somehow does this.