[mythtv-users] "NVP: prebuffering pause" in mythfrontend.log

[nik gibson]

I just did a complete re-install and upgraded from FC 5 to FC 6 and I
still have the same problem.  I can't find anything on google, what
could be causing this?

On 11/27/06, Michael Tiller <michael.tiller at gmail.com> wrote:
> On 11/27/06, Tom Lichti <tom at redpepperracing.com> wrote:
> > Michael Tiller wrote:
> > > I have exactly the same issue (Xv errors followed by prebuffereing
> > > pauses).  I would also really appreciate any advice people have.
> > >
> > > In my case, my CPU load is around 93-96% (despite XvMC being on, as
> > > evidenced by the gray OSD) during HD playback.  I'm running Ubuntu 6.10
> > > on a 2.8 GHz Pentium D with 1.2 Gb of RAM.
> > >
> > > --
> > > Mike
> >
> > I was just trying this last night and had the same problem. 99% CPU
> > utilisation, same errors in the log, with a dual core Pentium D 2.8GHz
> > 512GB RAM, on CentOS 4.4, GigE network, QuadroFX video card. This should
> > be PLENTY of hardware to play this file.
>
> I would have thought so although with all the talk about XvMC this list I
> was puzzled.  I just got my HDHomerun and if I send the stream to my Windows
> P4 2.4GHz desktop machine it renders the direct HD stream without any
> problems (I didn't check the CPU utilization under Windows).  I don't
> understand why there is so much fuss about HD decoding under Linux (but I'm
> pretty ignorant :-).
>
> > Without XvMC, I get about 65% CPU, with BOB de-int enabled, and it plays
> perfectly.
>
> Well, my situation is different.  I still get 99% CPU utilization without
> XvMC.  At least with XvMC it seems like the video is running at (or close
> to) real time whereas without it the video looks like slo-mo.
>
> I'm totally bummed that my Myth system can't seem to handle HD.  I'm still
> sorting through all the different advice on the mailing list but it is still
> surprising to me that this machine strains so much under the HD load whereas
> my Windows machine (which I did *nothing* to optimize) handles it so easily.
>
> > Tom
>
>
> So far this thread is long on questions and short on answers. :-)
>
> --
> Mike
>
>
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