[mythtv-users] Just how great can VDPAU be?

[R. G. Newbury]

Mark Kendall wrote:
> 2008/11/20 Yeechang Lee <ylee at pobox.com>:
>> Am I mistaken? What am I missing, if anything?
> 
> OK - so I've been spending far too much time playing with VDPAU today
> to resist responding :)
> 
> As I type I've got mythtv playing live tv using vdpau for playback.
> Double rate temporal deinterlacer, standard def MPEG2 source, (mostly)
> working osd, core2due 2.4gz, 8800GT and 1GB ram. Current utilisation
> hovers at around 1-2%.
> 
> Switch to the 1080i/h264 channel (think high bitrate) - 1-2%.
> 
> Switch to an old BBC HD h264 recording (again 1080i/high bitrate) - load 1-2%.
> 
> No tearing, vertical sync seems to work 'out of the box' and
> deinterlacing quality is reasonable (though the implementation is
> simple and some further work could improve it).
> 
> The main downside at the moment is picture quality (and the same
> issues apply to mplayer - so appear to be related to the state of the
> api/driver):-
> 
>  - all my h264 streams break up intermittently. I think nvidia have
> acknowledged that higher profile streams still have issues. Otherwise
> quality is very good.
>  - all my mpeg2 streams and recordings exhibit some form of vertical
> 'blockiness'. It varies by source and I even see it on the nvidia
> 'reference' clips.
> 
> All told, a pretty impressive start from nvidia - but it needs work.
> 
> Regards
> 
> Mark

OK, so now you have done the teasing.... WORK FASTER!

PLEASE. Now I gotta go look for a cheap 8300 or 8500 serires nvidia 
card?. Are the fans on those things controllable? Quiet?

Geoff





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