[MPlayer-dev-eng] DxVA in MPlayer

[Georgi Petrov]

> I don't consider readback support all that essential myself, so I didn't
> mean to imply that you should implement it. AFAIK not many people miss
> it with VDPAU (it's only really needed if you want to do some nontrivial
> filtering on a minimal machine - on desktop class machines it's possible
> to use software decoding if necessary).

This is exactly my point of view. I will start with non-readback as it
is my primary point of interest as well :)