I don't think GPGPU is needed at all. The Raspberry supports
OpenMAX , OpenVG and OpenGL ES. All videos can be hardware
decoded via OpenMAX. The codecs supported are
MPEG2 (DVDs/terrestial broadcasts) ,
h.264 (Blu-rays and online HD) ,
VP8 (some .wmv, some Blu-rays) and MPEG-4 ASP.
AFAIK some kinds of DivX work too.
The problem is that this would need a big rewrite of
Xibos display and multimedia backends , and i don't think
that is a job for a single person.
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