[MPlayer-dev-eng] vdpau codec priority?

[Reimar Döffinger]

On Wed, Sep 02, 2009 at 02:05:26PM +0300, Uoti Urpala wrote:
> On Wed, 2009-09-02 at 12:46 +0200, Reimar Döffinger wrote:
> > On Wed, Sep 02, 2009 at 10:05:56AM +0000, Carl Eugen Hoyos wrote:
> > > Reimar, are there any possibilities of solving this? Even a hack that tests for
> > > vc==*vdpau if video initialisation fails and tries another vc would be worth it,
> > > imo.
> > 
> > A proper solution is possible and was suggested, it depends on FFmpeg
> > finally merging the vdpau and normal codecs and just select between them
> > via the chosen colorspace.
> > Unfortunately it seems everyone lost interest in cleaning up that
> > particular mess on the FFmpeg side.
> 
> Selecting via colorspace wouldn't help with the particular problem Carl
> was talking about (VDP decoder creation failing because another process
> on the machine is using it). The colorspace would have already been
> negotiated by the time MPlayer notices that it can't actually create a
> decoder for that colorspace. So you'd still have the same situation
> where decoder creation fails and things have to be retried starting from
> an earlier point. To avoid that you'd need something like reserving
> resources at query_format stage.

The decoder (with a dummy value for max_refs) can be created during query_format
AFAICT, it still doesn't help a bit without the changes in FFmpeg.
Also the first complaint was needing so many options (particularly that
you need to know which codec the file uses), which definitely
would be fixed with the FFmpeg changes.