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<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT
face=Tahoma size=2>-----Original Message-----<BR><B>From:</B>
mythtv-users-bounces@mythtv.org [mailto:mythtv-users-bounces@mythtv.org] <B>On
Behalf Of </B>Steve Smith<BR><B>Sent:</B> Thursday, January 17, 2008 1:13
AM<BR><B>To:</B> Discussion about mythtv<BR><B>Subject:</B> Re: [mythtv-users]
am i dropping frames?<BR><BR></FONT></DIV><BR><BR>
<DIV><SPAN class=gmail_quote>On 17/01/2008, <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">
<DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV></DIV>
<DIV lang=en-us dir=ltr align=left><FONT face=Tahoma size=2><SPAN
class=q>-----Original Message-----<BR><B>From:</B> <A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:mythtv-users-bounces@mythtv.org"
target=_blank>mythtv-users-bounces@mythtv.org</A> [mailto:<A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:mythtv-users-bounces@mythtv.org"
target=_blank>mythtv-users-bounces@mythtv.org</A>] <B>On Behalf Of
</B>Steve Smith<BR></SPAN>
<DIV><SPAN class=e id=q_117850e4e3d80574_2><B>Sent:</B> Wednesday, January
16, 2008 1:14 AM<BR><B>To:</B> Discussion about mythtv<BR><B>Subject:</B>
Re: [mythtv-users] am i dropping frames?<BR><BR></SPAN></DIV></FONT></DIV>
<DIV><SPAN class=e id=q_117850e4e3d80574_4><BR><BR>
<DIV><SPAN class=gmail_quote>On 15/01/2008, <B
class=gmail_sendername>Steve Peters - Priority Electronics</B> <<A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:steve@priorityelectronics.com" target=_blank>
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
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:mythtv-users-bounces@mythtv.org"
target=_blank>mythtv-users-bounces@mythtv.org </A><BR>[mailto:<A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:mythtv-users-bounces@mythtv.org"
target=_blank>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
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:mythtv-users@mythtv.org"
target=_blank>mythtv-users@mythtv.org</A><BR>> <A
onclick="return top.js.OpenExtLink(window,event,this)"
href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users"
target=_blank>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
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:mythtv-users@mythtv.org"
target=_blank>mythtv-users@mythtv.org</A><BR><A
onclick="return top.js.OpenExtLink(window,event,this)"
href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users"
target=_blank>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>_______________________________________________
<BR>mythtv-users mailing list<BR><A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:mythtv-users@mythtv.org"
target=_blank>mythtv-users@mythtv.org</A><BR><A
onclick="return top.js.OpenExtLink(window,event,this)"
href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users"
target=_blank>http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
</A><BR></BLOCKQUOTE></DIV>
<DIV> </DIV>
<DIV>Steve,</DIV>
<DIV> </DIV>
<DIV>Well the first thing to do is to get some log output:</DIV>
<DIV> </DIV>
<DIV>mythfrontend -v playback >/tmp/frontend.log</DIV>
<DIV> </DIV>
<DIV>Should put some useful output in /tmp/frontend.log....</DIV>
<DIV> </DIV>
<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>
<DIV> </DIV>
<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>
<DIV> </DIV>
<DIV>Cheers</DIV>
<DIV> </DIV>
<DIV>Steve<BR> <SPAN><FONT face=Arial color=#0000ff
size=2> </FONT></SPAN></DIV>
<DIV><SPAN></SPAN> </DIV>
<DIV><SPAN></SPAN> </DIV>
<DIV><SPAN></SPAN> </DIV></SPAN></DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff size=2>OK, it seems like there
is some bad stuff happening in the log file. What i did was
</FONT> <FONT face=Arial color=#0000ff size=2>run that command you
said for the frontend with linear deinterlacing, then one just for bob
setting. I ran the video (live tv) only for around 15 seconds at each
command line. I have two files on my site, both around 12k in size.
</FONT></SPAN></DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff size=2>here are the
files:</FONT></SPAN></DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff size=2><A
onclick="return top.js.OpenExtLink(window,event,this)"
href="http://www.penguinframe.com/frontend.log"
target=_blank>http://www.penguinframe.com/frontend.log</A> --uses
kernal</FONT></SPAN></DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff size=2><A
onclick="return top.js.OpenExtLink(window,event,this)"
href="http://www.penguinframe.com/frontend-bob.log"
target=_blank>http://www.penguinframe.com/frontend-bob.log </A>--uses
bob</FONT></SPAN></DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff size=2>Let me know what you
guys think.</FONT></SPAN></DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff
size=2>-Thanks</FONT></SPAN></DIV></BLOCKQUOTE></DIV><BR>_______________________________________________<BR>mythtv-users
mailing list<BR><A onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</A><BR><A
onclick="return top.js.OpenExtLink(window,event,this)"
href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users"
target=_blank>http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
</A><BR><BR></BLOCKQUOTE></DIV>
<DIV><BR> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Steve,</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Looking at your BOB log:</DIV>
<DIV> </DIV>
<DIV>
<P><FONT size=2>2008-01-16 15:33:26.599 Using deinterlace method
bobdeint</FONT></P>
<P><FONT
size=2>*****************************************************************************************************************************</FONT></P>
<P><FONT size=2>*******2008-01-16 15:33:26.701 nVidiaVideoSync: VBlank ioctl
did not work, unimplemented in this driver?****</FONT></P>
<P><FONT
size=2>*****************************************************************************************************************************</FONT></P>
<P><FONT size=2>2008-01-16 15:33:26.701 DRMVideoSync: Could not open device
/dev/dri/card0, No such file or directory</FONT></P>
<P><FONT size=2>2008-01-16 15:33:26.701 RTCVideoSync: Could not set RTC
frequency, Permission denied.</FONT></P>
<P><FONT size=2>2008-01-16 15:33:26.701 Set video sync frame interval to
33366</FONT></P>
<P><FONT size=2>2008-01-16 15:33:26.701 Using audio as timebase</FONT></P>
<P><FONT size=2>2008-01-16 15:33:26.701 Video timing method: USleep with busy
wait</FONT></P>
<P><FONT size=2>2008-01-16 15:33:26.701 Refresh rate: 16679, frame interval:
33366</FONT></P>
<P><FONT size=2></FONT> </P>
<P><FONT size=2>The line I've highlighted suggests that Sync to VBlank might
not be enabled on your video card. Try running</FONT></P>
<P><FONT
size=2>nvidia-settings
(I can't actually remember the name of the program at the moment I think its
called this!)</FONT></P>
<P><FONT size=2>Play with the Sync to.... settings to see if this helps!
(You'll have to keep restarting the playback on mythfrontend).</FONT></P>
<P><FONT size=2>(I wouldn't worry about the dropped frames reported at the
moment I always expect playback to stutter a bit in the first couple of
seconds)</FONT></P>
<P><FONT size=2>Cheers</FONT></P>
<P><FONT size=2>Steve<SPAN class=643590305-18012008><FONT face=Arial
color=#0000ff> </FONT></SPAN></FONT></P>
<P><FONT size=2><SPAN class=643590305-18012008></SPAN></FONT> </P>
<P><FONT size=2><SPAN class=643590305-18012008></SPAN></FONT> </P>
<P><FONT size=2><SPAN class=643590305-18012008><FONT face=Arial
color=#0000ff>OK, i played around with all the sync settings i could find in
the nvidia-settings program, and in mythtv as well, but i could not get the
bob deinterlace setting working. I have an hp dv1040 laptop with intel
graphics and using the standard drivers from ubuntu feisty, now gutsy after
the upgrade, i was able to set bob just fine and i noticed a HUGE improvement
in the video playback during a Lakers game. </FONT></SPAN></FONT></P>
<P><FONT size=2><SPAN class=643590305-18012008><FONT face=Arial
color=#0000ff>So now i'm convinced that the Bob setting is my issue on my main
frontend. I even reinstalled my nvidia drivers using a program called
Envy.</FONT></SPAN></FONT></P>
<P><FONT face=Arial color=#0000ff size=2><SPAN class=643590305-18012008>Any
ideas on what i can do now?</SPAN></FONT></P>
<P><FONT face=Arial color=#0000ff size=2><SPAN
class=643590305-18012008>-Thanks</SPAN></FONT></P></DIV></BLOCKQUOTE></BODY></HTML>