[MPlayer-dev-eng] Add Mac OS X for hw acceleration support

[Zongyao Qu]

Sorry for the duplicated thread on the user-list.
But there was no one replying, 
so I think maybe I should post it here.

I found FFmpeg started to support  VDA framework,
which is a HW accelerating framework for H264 decoding
on Mac OS X.

I want to add it to mplayer, but I don't know how.

If there is anyone who could give me some hints on such thing,
it will be deeply appreciate.

Thank you.