[mythtv-users] HD plays fine, SD jerky video and sound?

Mark Hutchinson mark at onnow.net
Thu Feb 7 20:01:52 UTC 2008


On 2/7/08, Mark Hutchinson <mark at onnow.net> wrote:

>
>
>  On 2/7/08, Michael T. Dean <mtdean at thirdcontact.com> wrote:
> >
> > On 02/07/2008 02:05 PM, aaron wrote:
> > > On 2/7/08, Mark Hutchinson <mark at onnow.net> wrote:
> > >
> > >> Live tv from mythfrontend, HD channels are fine, SD channels are very
> > >> jerky with stuttering sound.
> > >>
> > >> I have tried many many things.  Ideas on how to diagnose this?  No
> > >> really anything in the frontend or backend logs.
> > >> How can SD be harder or more intensive to play than HD?
> > > This might be way off, but if there's no Xv, Myth will need to do
> > > software scaling, right? Could it be that it takes more effort to
> > > scale the SD resolution (which would be something like 720x480) up to
> > > 1920x1080 than to (decode HD + scale to 1080) ?
> >
> > It's actually the playback profile he's selected (he's using SVN
> > trunk--for the archives, the same will apply as users upgrade to 0.21).
> > Covered in the thread
> > http://www.gossamer-threads.com/lists/mythtv/users/314849#314849 (though
> > the post hasn't hit the archives, yet).  It will be one from me later in
> > the thread.
> >
> > Mike
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
>
>
> I am using CPU+ profile
>

Should I be editing the:
if rez > 0 0 -> XvMC line then?  SD is 480 correct?
What Decoder and Video renderer would be best for the Nvidia 8600?
What about Deinterlacer?


>
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