[MPlayer-dev-eng] [PATCH] add VDPAU IMGFMTs

Reimar Döffinger Reimar.Doeffinger at stud.uni-karlsruhe.de
Fri Feb 13 01:43:17 CET 2009


On Fri, Feb 13, 2009 at 12:23:48AM +0200, Georgi Petrov wrote:
> >> someone said something about doing vdpau as a video filter to get
> >> rid of the codec hacks... i cant remember the details.
> >
> > I don't think that will make any difference for that part, it would just
> > be an alternative to the vo part only.
> > Also, decoding into RAM would be better done completely in libavcodec.
> 
> Yap. Filters are after decoder in the chain, so the decoder decodes
> into RAM and then the filter does its magic. The point of VDPAU's
> codec part is to skip the CPU decoding (which is done before any
> filter is put into the game), so implementing it as a filter is not
> possible.

Huh? It sure is possible, you can read the decoded data back from
video-RAM, I just think it is a bad idea since it does not really add
anything over adding support for decoding+reading back in ffmpeg, from
which far more programs than MPlayer could profit.

Greetings,
Reimar Döffinger



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