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<DIV dir=ltr align=left><SPAN class=343505612-18062007><FONT face=Arial
color=#0000ff size=2>Does is jitter if played outside myth? Is XV enabled
on your video card? Does Xine play it ok?</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=343505612-18062007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=343505612-18062007><FONT face=Arial
color=#0000ff size=2>If the video encoded ok? (Have you played it back on
another machine)?</FONT></SPAN></DIV><BR>
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<FONT face=Tahoma size=2><B>From:</B> mythtv-users-bounces@mythtv.org
[mailto:mythtv-users-bounces@mythtv.org] <B>On Behalf Of </B>Aaron
Nauman<BR><B>Sent:</B> Sunday, June 17, 2007 10:44 PM<BR><B>To:</B> Discussion
about mythtv<BR><B>Subject:</B> Re: [mythtv-users] ivtv capture is good, but
mythtv hoses it<BR></FONT><BR></DIV>
<DIV></DIV>On 6/17/07, <B class=gmail_sendername>Brian Wood</B> <<A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:beww@beww.org" target=_blank>beww@beww.org</A>> wrote:
<DIV><SPAN class=gmail_quote></SPAN>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">Aaron
Nauman wrote:<BR>>> > > I am running ivtv 0.10.3 on PVR 350 and
PVR 150 on fc6 2.6.20. If<BR>> I run a<BR>>> > >
capture test with cat<BR>>> > ><BR>>> > > cat
/dev/video1 > test.mpg<BR>>> > ><BR>>> > > The
capture looks great. If I start mythtv and watch live tv, I<BR>>
get jitter.<BR>>> > > Every couple of seconds the video
pauses for a second of so. <BR>>> ><BR>>> > In
MythTV, what resolution/bitrate do you have set for your LiveTV<BR>>>
> profile for MPEG2 Hardware Encoders? If you change the
resolution for<BR>>> > LiveTV to 720x480 do things
improve? <BR>>><BR>>> Thanks for the reply
Nick.<BR>>><BR>>> I am running with the default settings: 480 x
480 with 368K bitrate.<BR>> I tried 720 x 480 and get no
improvement.<BR>>><BR>>> I have tested my hard drive and it is
getting good throughput. Any <BR>> other
ideas?<BR>>><BR>>> Thanks,<BR>>> Aaron<BR>><BR>> I
have tried changing the resolution and bitrate settings around, with<BR>>
no improvement.<BR>> I am getting some "NVP: prebuffering pause" messages.
<BR>> I tried output through PVR-350, but still have the jitter, so I
am<BR>> pretty sure it is on capture.<BR>><BR>> I have read through
the troubleshooting sections on ivtv and mythtv and<BR>> everything else I
can find with google and haven't found anything that <BR>> makes a
difference. And that includes rebuilding the machine from<BR>>
scratch. I am really worried that I am going to have an
expensive<BR>> doorstop on my hands, unless someone can help get me on the
right track. <BR>><BR>> Any thoughts anyone?<BR><BR>What sort of system?
Myth puts a significant load on system resources,<BR>if you have an
underpowered CPU it might work fine running a cat command<BR>but fall on its
knees running Myth. </BLOCKQUOTE><BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">What
CPU and what load running Myth? Are you running X and all graphical <BR>stuff
when you run your cat command? Is your RAM limited, ie" are you<BR>swapping
when running Myth but not when running the cat?<BR><BR></BLOCKQUOTE></DIV><BR>I
don't think it is a performance issue. I have had myth running on this
machine with no jitter problems with ubuntu. I was having stability and
lirc problems with Ubuntu and Jarod's howto is so nice, that I switched to
Fedora. <BR><BR>The machine has<BR><SPAN id=nointelliTXT><SPAN
id=intelliTxt>Sempron 3400+ (2 GHz)<BR>2 GB RAM<BR><BR>There is basically
nothing running on the machine other than KDE that is resource intensive.
No swapping happening while watching live TV, but jitter is there. <BR><BR>What
I find confusing is that capture with cat jitters after exiting myth. I seems
that this would point to the problem. I just don't know enough about this
stuff to figure it out.<BR><BR>Thanks,<BR>Aaron<BR></SPAN></SPAN></BODY></HTML>