Add support for VAAPI-GL
At the moment only XVideo is playing well together with VLC+VAAPI (GLX output causes 100% CPU usage, even with VAAPI).
Since XVideo introduces quite a few problems such as video tearing for ATI users (with the prorietary fglrx driver), adding support for vaapi_gl would be great. mplayer can do this with the "-vo vaapi:gl" option, as far as I understand there is no equivalent option in VLC yet.
For a more detailed explanation why an option like mplayer's "-vo vaapi:gl" would make sense have a look at http://forum.videolan.org/viewtopic.php?f=13&t=86168.