[VDPAU] VP8 support in the VDPAU interface

[Aaron Plattner]

A while ago, Emeric Grange did a GSoC project to add support for VP8:
http://cgit.freedesktop.org/~emericg/libvdpau-vp8/commit/?id=d861763cce90b4e4f3e46ef624307e512dc63a28

I'd like to thank Emeric for getting the ball rolling on this and continue the 
discussion here.

Not being too familiar with VP8 myself, I started reading RFC 6386 and couldn't 
really understand how the named header fields in the RFC match up to Emeric's 
structure definitions.

One of the proposed alternatives was to just pass the entire picture including 
the header and let the hardware handle the decoding.  I guess this would mean 
the calling application would still need to parse out the refresh_golden_frame 
and refresh_alternate_frame bits to keep track of the reference surfaces it 
needs to pass in?

-- Aaron