[mythtv-users] GeForce 8400 still recommended for VDPAU?

[Isaac Richards]

On Monday 18 May 2009 7:07:08 pm Yeechang Lee wrote:
> Greg Grotsky <spikeygg at gmail.com> says:
> > Do you have any problems on your OC 9500GT with overlays?  I'm
> > curious if the newer/faster cards are capable of overlays without
> > causing the video to stutter.
>
> I'm curious as well; I'd be surprised if the 9500GT were
> stutter-immune in this case, though, because the stuttering occurs
> even on SD resolutions. Stuttering occurs (if I am correct) because
> the VDPAU hardware doesn't handle the rendering of the OSD (including
> caption text); it is overlaid on the VDPAU-decoded and -rendered
> video.

Any stuttering can be attributed directly to the extremely inefficient OSD 
rendering code inside of Myth for the VDPAU use-case.

When our OSD code is ported to mythui, it will be rendered using VDPAU and the 
stuttering will go away.  The hardware's capable of it, we're just not using 
it yet.

Isaac