[mythtv-users] Mythtv.9 - increased choppiness of video/ dropped frames

cmisip cmisip at insightbb.com
Tue Jun 10 21:29:06 EDT 2003


Seems like not everybody is having these problems.  Some have even
reported increased speed.  Maybe it is system specific.  My system is an
AMD Athlox XP 2400+ with Soyo KT400 motherboard and dual TV tuners: ATI
TV Wonder and ATI TV Wonder VE, using SB Live 5.1 and btaudio.



On Tue, 2003-06-10 at 20:19, cmisip wrote:
> I have been trying to find out what is causing this.  I reverted to my
> previous norton ghost install with the mythtv cvs version of 5/25/03 and
> redhat 9 kernel version 2.4.20-13.9 thinking that it was a kernel
> problem.  That mythtv cvs version works fine without the choppy video. 
> Still thinking it was the kernel, I installed the latest cvs version of
> mythtv and reproduced the choppy video.  So it cant be the kernel. 
> Reverted to my norton ghost backup of last night prior to the mythtv .9
> install.  Now under the kernel version 2.4.20-18.9.  The cvs version of
> 5/25/03 = no choppiness.  Installed mythtv current cvs (0.9) and there
> the choppiness is back.  There;s gotta be something in the new mythtv
> release causing this.  I have had no hardware changes at all.  All
> settings are the same.  And now no apparent difference with different
> kernel versions.  
> 
> On Tue, 2003-06-10 at 17:05, Mark Chou wrote:
> > I too have observed this increased choppiness as well.  I think 
> > something changed on or around 5/27 in CVS that rendered playback (or is 
> > it encoding?) choppy compared to before.  Ever since that time 
> > subsequent recordings have had dropped frames lasting around 1 sec. or 
> > so, and generally comes in bunches...
> > 
> > I can't put my finger on where in the code is responsible for the 
> > choppiness coming from, but my system has had no change (HW/SW) besides 
> > mythtv for at least two months now.  I've even turned off cron to 
> > eliminate this possibility but it still happens...
> > 
> > ------------------------------------------------------------------------
> > Issac Richards wrote:
> > 
> > On Tuesday 10 June 2003 04:19 pm, cmisip wrote:
> >  > Just upgraded last night to .9. I noticed that I seem to have very
> >  > noticeable frame drops and video jerkiness especially when there are 2
> >  > recording sessions going on.  Has the system requirements increased ?
> >  > This was not an issue with cvs from 5/25/03.  I notice rebuffering
> >  > messages when I quit mythfrontend.  If its a bug, hoping to get it fixed
> >  > in .9.1.  Thanks
> > 
> > Nothing of importance changed in that time period.
> > 
> > Isaac
> > 
> >  
> > 
> > 
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