[mythtv-users] ivtv capture is good, but mythtv hoses it
Aaron Nauman
mtense at gmail.com
Wed Jun 27 03:26:39 UTC 2007
I tried changing the bitrate and stream type to several different values
with no improvement.
Finally, I gave up on running myth on fedora on my setup. Installed ubuntu
(fiesty fawn) and the jitter problems are gone.
Thanks for everyone's help.
Aaron
On 6/26/07, Michael T. Dean <mtdean at thirdcontact.com> wrote:
>
> On 06/25/2007 10:42 PM, Aaron Nauman wrote:
> > Does anyone have any idea whether the changes in the ivtv settings
> > below could cause jitter while capturing?
>
> Use the attached script to find your recording profile details, i.e.:
>
> mysql -umythtv -p mythconverg < recording_profile.sql > results
>
> For comparison, the values I use are value at the bottom of this post.
> It gives basically VCR quality recordings that are 1.15GiB/hr. Really,
> the AvgBitrate should probably be 4500 and the MaxBitrate should be 6000
> for best quality (anything higher--for either--is wasted bits), but I
> chose quantity over quality (the source is low quality, anyway). The
> stream type is critical...
>
> Mike
>
> Profile: Default
> Width: 720
> Height: 480
> StreamType: DVD-Special 2
> AspectRatio: 4:3
> AvgBitrate: 2200
> MaxBitrate: 3000
> AudioSampleRate: 48000
> MP3Quality: 7
> MPEG2AudioType: Layer II
> AudioBitrateL1: 448
> AudioBitrateL2: 256
>
>
>
> SELECT recordingprofiles.name as Profile,
> max(if(codecparams.name = 'width', codecparams.value, '')) as
> Width,
> max(if(codecparams.name = 'height', codecparams.value, '')) as
> Height,
> max(if(codecparams.name = 'mpeg2streamtype', codecparams.value,
> '')) as StreamType,
> max(if(codecparams.name = 'mpeg2aspectratio', codecparams.value,
> '')) as AspectRatio,
> max(if(codecparams.name = 'mpeg2bitrate', codecparams.value, ''))
> as AvgBitrate,
> max(if(codecparams.name = 'mpeg2maxbitrate', codecparams.value,
> '')) as MaxBitrate,
> max(if(codecparams.name = 'samplerate', codecparams.value, ''))
> as AudioSampleRate,
> max(if(codecparams.name = 'mp3quality', codecparams.value, ''))
> as MP3Quality,
> max(if(codecparams.name = 'mpeg2audtype', codecparams.value, ''))
> as MPEG2AudioType,
> max(if(codecparams.name = 'mpeg2audbitratel1', codecparams.value,
> '')) as AudioBitrateL1,
> max(if(codecparams.name = 'mpeg2audbitratel2', codecparams.value,
> '')) as AudioBitrateL2
> FROM recordingprofiles, codecparams
> WHERE recordingprofiles.id = codecparams.profile
> AND codecparams.name IN ('width', 'height', 'mpeg2streamtype',
> 'mpeg2aspectratio', 'mpeg2bitrate',
> 'mpeg2maxbitrate', 'samplerate',
> 'mp3quality',
> 'mpeg2audtype', 'mpeg2audbitratel1',
> 'mpeg2audbitratel2')
> GROUP BY codecparams.profile\G
>
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mythtv.org/pipermail/mythtv-users/attachments/20070626/317ffa48/attachment.htm
More information about the mythtv-users
mailing list