[mythtv-users] [OT] nvidia 8756: XvMC works!

Jurgen Kramer gtm.kramer at inter.nl.net
Sat Apr 8 20:13:37 UTC 2006


On Sat, 2006-04-08 at 16:02 -0400, Steven Adeff wrote:
> On 4/8/06, Jurgen Kramer <gtm.kramer at inter.nl.net> wrote:
> > I just tried the new nvida 8756 drivers from livna on my main PC to see
> > if XvMC would finally work....and it works!!
> >
> > I hope the atrpms packages will be there soon so I can upgrade my
> > mythbox.
> >
> > vd_ffmpeg: XVMC accelerated MPEG2
> > trying pixfmt=0
> > VDec: vo config request - 1920 x 1080 (preferred colorspace: MPEG1/2
> > Motion Compensation and IDCT)
> > VDec: using MPEG1/2 Motion Compensation and IDCT as output csp (no 0)
> > Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
> > VO: [xvmc] 1920x1080 => 1920x1080 MPEG1/2 Motion Compensation and IDCT
> > vo_xvmc: Port 274 grabed
> > vo_xvmc: Found matching surface with id=54434449 on 274 port at 0
> > adapter
> > vo_xvmc: Allocated Direct Context
> > vo_xvmc: data_blocks allocated
> > vo_xvmc: mv_blocks allocated
> > vo_xvmc: Motion Compensation context allocated - 8 surfaces
> > vo_xvmc: idct=1 unsigned_intra=0
> > vo_xvmc: looking for OSD support
> >     Subpicture id 0x34344149
> > vo_xvmc: OSD support by additional frontend rendering
> >
> > Jurgen
> 
> Jurgen, what was the issue you had before?
> I noticed that I had to run mplayer over and over until it worked
> before Myth would start using XvMC, which makes it hard on a dedicated
> frontend. If this new version is working right off the bat, that will
> be my two problems with the old drivers solved (interlacing and now
> possibly XvMC).

On my main PC, which has a 6800GS, XvMC was not working at all because
of a bug in the driver. On my myth system, which has a 6200, I only got:

Error while decoding frame!
[mpegvideo_xvmc @ 0x86b2c00]XvMCLoadQMatrix: Error: 2
[mpegvideo_xvmc @ 0x86b2c00]XvMCBeginSurface: Error: 2
Error while decoding frame!
[mpegvideo_xvmc @ 0x86b2c00]XvMCLoadQMatrix: Error: 2
[mpegvideo_xvmc @ 0x86b2c00]XvMCBeginSurface: Error: 2

Hopefully these errors will be gone as well. I'll wait for the atrpms
packages. So far it looks promising, it would save me a CPU upgrade on
my myth fe/be system.

Jurgen



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