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choppy playback on new danish dvb channels

 

 

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tralph11 at yahoo

Nov 10, 2009, 2:23 PM

Post #26 of 29 (696 views)
Permalink
Re: choppy playback on new danish dvb channels [In reply to]

> > From: Martin <martin.rene.mortensen [at] gmail>
> > Subject: Re: [mythtv-users] choppy playback on new
> danish dvb channels
> > To: "Discussion about mythtv" <mythtv-users [at] mythtv>
> > Date: Sunday, November 8, 2009, 6:11 AM
> >  I created ticket #7522 in trac.
> >
> > http://svn.mythtv.org/trac/ticket/7522
> >

An "official" solution to this problem has been committed by Michael at FFmpeg. I would advise using it instead of the earlier patch. A patch for MythTV is here:

http://svn.mythtv.org/trac/attachment/ticket/7522/mythtv_ffmpeg_r20504.diff

Enjoy.

--
Taylor



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jeppe at ingolfs

Nov 11, 2009, 1:32 AM

Post #27 of 29 (680 views)
Permalink
Re: choppy playback on new danish dvb channels [In reply to]

Taylor Ralph <tralph11 [at] yahoo> writes:

>> > From: Martin <martin.rene.mortensen [at] gmail>
>> > Subject: Re: [mythtv-users] choppy playback on new
>> danish dvb channels
>> > To: "Discussion about mythtv" <mythtv-users [at] mythtv>
>> > Date: Sunday, November 8, 2009, 6:11 AM
>> >  I created ticket #7522 in trac.
>> >
>> > http://svn.mythtv.org/trac/ticket/7522> >
>
> An "official" solution to this problem has been committed by Michael at FFmpeg. I would advise using it instead of the earlier patch. A patch for MythTV is here:
>
> http://svn.mythtv.org/trac/attachment/ticket/7522/mythtv_ffmpeg_r20504.diff
>
> Enjoy.

Any chance to get this applied to 0.22-fixes?

/Jeppe

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baekgaard at b4net

Nov 11, 2009, 11:20 AM

Post #28 of 29 (675 views)
Permalink
Re: choppy playback on new danish dvb channels [In reply to]

I'm having a similar problem here with the Danish "DR HD" channel; only
I am not using DVB-T but the DVB-C signal from YouSee (Danish cable
network).

In addition to using 100% CPU time on my Athlon XP 4850e+ it plays quite
jerky. The stock mplayer (this is Ubuntu 9.04) refuses to play it, but
vlc can play it but not very smooth. On a similar box, just running 9.10
64-bit, mplayer plays it without any hickups...


I'm using mythtv-0.21.0+fixes21768, installed as a binary from the
ppa.launchpad.net mythbuntu repository. I have downloaded also the
source from the same place and have built the corresponding .deb
packages -- but am a bit hesitant installing them due to numerous
warnings etc that I'm uncertain of whether is a problem with my build
environment or just "normal" messages...

(The warnings are on e.g. dependencies on libXmu.so.6 to be avoided, and
same for libGLU.so.1, and many others, plus a bunch of strange symbols
not found in libraries, ad nausem -- plus obviously the lack of a
correct key to sign them with etc.)


So before trying to install the packages, possibly ruining my
("production") server, I was wondering whether applying the following patch


http://svn.mythtv.org/trac/attachment/ticket/7522/mythtv_ffmpeg_r20504.diff

to the older branch I'm using will in fact cause it to play smoothly, or
if the real issue is that I still will not have enough CPU anyway? If
so, it would be better to put in another graphics card, as the same
videos play fine on a VDPAU enable Atom equiped 0.21 frontend I also use.


Or are there chances that this patch will make its way into the 0.21 ppa
repository at some point?


-- Per.

Jeppe Nejsum Madsen wrote:
> Taylor Ralph <tralph11 [at] yahoo> writes:
>
>
>>>> From: Martin <martin.rene.mortensen [at] gmail>
>>>> Subject: Re: [mythtv-users] choppy playback on new
>>>>
>>> danish dvb channels
>>>
>>>> To: "Discussion about mythtv" <mythtv-users [at] mythtv>
>>>> Date: Sunday, November 8, 2009, 6:11 AM
>>>> I created ticket #7522 in trac.
>>>>
>>>> http://svn.mythtv.org/trac/ticket/7522> >
>>>>
>> An "official" solution to this problem has been committed by Michael at FFmpeg. I would advise using it instead of the earlier patch. A patch for MythTV is here:
>>
>> http://svn.mythtv.org/trac/attachment/ticket/7522/mythtv_ffmpeg_r20504.diff
>>
>> Enjoy.
>>
>
> Any chance to get this applied to 0.22-fixes?
>
> /Jeppe
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>

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kenni at kelu

Dec 8, 2009, 3:13 AM

Post #29 of 29 (507 views)
Permalink
Re: choppy playback on new danish dvb channels [In reply to]

Taylor Ralph <tralph11 at yahoo.com> writes:

>> > From: Martin <martin.rene.mortensen at gmail.com>
>> > Subject: Re: [mythtv-users] choppy playback on new
>> danish dvb channels
>> > To: "Discussion about mythtv" <mythtv-users at mythtv.org>
>> > Date: Sunday, November 8, 2009, 6:11 AM
>> > I created ticket #7522 in trac.
>> >
>> > http://svn.mythtv.org/trac/ticket/7522> >
>
> An "official" solution to this problem has been committed by Michael at FFmpeg. I would advise using it instead of the earlier patch. A patch for MythTV is here:
>
> http://svn.mythtv.org/trac/attachment/ticket/7522/mythtv_ffmpeg_r20504.diff
>
> Enjoy.

Unfortunately ticket #7522 in trac is locked so I can't post my
findings there. On my system the recommended "official" solution
(mythtv_ffmpeg_r20504.diff) doesn't work correctly, but the older
(non-recommended) test patch "mythtv_h264_strict_test1.diff" solves
the issue completely...

Using the recommended solution makes the playback less choppy, but it
doesn't solve it. I'm not the only one with these observations, in a
thread on a danish forum, two out of four users also get improvements
with the patch without the issue being resolved (in danish, but
doesn't contain any further valuable information):
http://forum.recordere.dk/forum_posts.asp?TID=69424&PID=711790&title=mythtv-022-nye-dr-kanaler-hakker#711790

I've tested on 0.22-fixes r22952 on a 512MB VDPAU capable system.

Can I do anything to help out nailing this issue?

Best Regards
Kenni Lund
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