<br><br>
<div><span class="gmail_quote">On 15/01/2008, <b class="gmail_sendername">Steve Peters - Priority Electronics</b> <<a href="mailto:steve@priorityelectronics.com">steve@priorityelectronics.com</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"><br><br>-----Original Message-----<br>From: <a href="mailto:mythtv-users-bounces@mythtv.org">mythtv-users-bounces@mythtv.org
</a><br>[mailto:<a href="mailto:mythtv-users-bounces@mythtv.org">mythtv-users-bounces@mythtv.org</a>] On Behalf Of Jesse Burt<br>Sent: Tuesday, January 15, 2008 9:53 AM<br>To: Discussion about mythtv<br>Subject: Re: [mythtv-users] am i dropping frames?
<br><br><br><br>On Tue, 2008-01-15 at 10:33 -0700, Brian Wood wrote:<br>> Steve Peters - Priority Electronics wrote:<br>><br>> > ____________________________________________________________<br>> ><br>> >
<br>> > Beww, so are you saying that this might be normal for myth<br>> > recordings? Is everyone using mythtv stuck with this kind of<br>> > playback problem? It's not the artifacts that are the problem, it's
<br>> > the lack of smooth playback that is the problem. I just don't see<br>> > how any sports fan could put up with this. I go to other people's<br>> > houses and watch sports there and I think to myself...I'd better not
<br>> > invite them over to my place to watch sports, cause that will make<br>> > my mythtv setup look really bad. -Thanks<br>><br>> No, you should be able to get a recording (and playback) that most<br>
> viewers would not be able to tell from "live" TV, unless you have some<br>> very critical (and observant) viewers.<br>><br>> If you are not, the first thing to do is determine if the problem is<br>
> with the recording or the playback. Try playing back a known good<br>> recording, then try playing back a Myth recording with something other<br>> than Myth.<br>><br>> The recording you posted looked pretty good to me except for the
<br>> interlace artifacts.<br>><br>> beww<br>> _______________________________________________<br>> mythtv-users mailing list<br>> <a href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br>
> <a href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users">http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users</a><br><br>I agree with beww that with the right settings it would be difficult to tell<br>the difference unless, as stated, someone is very critical or observant or
<br>the difference is being looked for. With the right settings, I find that<br>image impurities that are easily noticeable on my 15" Laptop LCD or 22"<br>Desktop LCD wind up looking perfectly normal on a plain old 29" CRT TV. Also
<br>is that channel (in your example clip) available as a digital channel on<br>your service (probably encrypted if it is)? If so, and your TV is connected<br>to a cable/sat box, perhaps when watching TV through it, you are watching a
<br>digital version of the analog-encoded clip you posted. If so, that could<br>account for a difference in quality.<br><br>Cheers,<br>Jesse Burt<br><br><br>_______________________________________________<br>mythtv-users mailing list
<br><a href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br><a href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users">http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users</a><br><br><br>-----------------------------------------------------------------------
<br><br>Jesse, Steve, Mitch, and Brian, thanks for the replies,<br><br>I have to agree with Steve... Bob is the problem :)<br><br>I think if I can figure out why it is not working, I'll be set. That was<br>recorded from espn analog. Time warner cable in my area has teriffic quality
<br>digital cable, where it looks way better than analog. On my espn digital<br>(still in sd), I get the same effect. On my espn hd channel I get the same<br>effect. So I don't think it's the signal that is the issue here.
<br><br>I'm not so concerned with the image artifacts... when I watch on my 14"<br>widescreen laptop, I see them, but on my 55" 480p tv, I don't notice them at<br>all, probably cause of the resolution of the screen I am viewing.
<br><br>As to figuring out if the problem is with the recording or the playback,<br>Brian recommended playing back a know good recording, then try playing back<br>a myth recording with something other than myth. ----well...that video I
<br>uploaded, I played back on my windows laptop, and it looked pretty decent.<br>Also, what is a known good recording? Something downloaded from the web<br>perhaps? Maybe one of you guys can upload or email me a known good recording
<br>(preferebly sports) and I can play it back on my laptop and then on my<br>mythtv.....? :)<br><br>Also, is there a way to find out if I am indeed dropping frames? Because if<br>that is the issue, then all this other troubleshooting is for naught.
<br><br>Lastly for now, any ideas on how to fix Bob? Could it be related to an<br>nvidia drivers setting or something like that?<br><br>-Thanks so much for the help/tips.<br><br><br>_______________________________________________
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</a><br></blockquote></div>
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<div>Steve,</div>
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<div>Well the first thing to do is to get some log output:</div>
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<div>mythfrontend -v playback >/tmp/frontend.log</div>
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<div>Should put some useful output in /tmp/frontend.log....</div>
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<div>I'm guessing you'll see something along the lines of....."Refresh too low for bobdeint defaulting to onefield..."</div>
<div>In which case you'll need "Viktor's Patch"... search this list for posts from me mentioning Viktor & bob and you'll find it.</div>
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<div>(You could also try mplayer -vo xvmc:bobdeint FILE.mpg, this may or may not work depending on your setup. But if it works you'll be able to see what bob should look like)</div>
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<div>Cheers</div>
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<div>Steve<br> </div>