[mythtv-users] eeeek something broke on ffmpeg and associated programs

Stephen Kitchener stephen at g6dzj.demon.co.uk
Tue Apr 24 22:30:14 UTC 2007


On Tuesday 24 Apr 2007 22:52, Stephen Kitchener wrote:

Hi Paul,

I needed to change it in mythburn.py - which worked for archiving, is there 
anywhere else that it needs to be changed ?


> On Tuesday 24 Apr 2007 11:31, Paul Harrison wrote:
>
> Hi Paul,
>
> I did a yum update today and along with the rpms listed below, were the
> mythtv rpms. So I thought that the problem had been fixed, but no I still
> get the same error,,,
>
> You said that I need to change '-ab 192'  to '-ab 192k'. Where would I do
> this please....Do I need to change it in more than one place ?
>
> Thanks
>
> > Stephen Kitchener wrote:
> > > Hi List,
> > >
> > > I wonder if someone has seen the following......
> > >
> > > The rpms from Atrpms for
> > >
> > > libavutil49
> > > libavcodec51
> > > libavformat51
> > > libswscale0
> > > libpostproc51
> > > ffmpeg
> > >
> > > have twice been updated, the latest today,  4.9.21 and 4.9.20,
> > >
> > > I now get the error
> > >
> > > 2007-04-23 20:16:02 Encoding audio to ac3
> > > 2007-04-23 20:16:03
> > > ************************************************************
> > > 2007-04-23 20:16:03 ERROR: Failed while running ffmpeg to re-encode the
> > > audio to ac3
> > > Command was ffmpeg -v 0 -y -i '/home/mythtv/work/1/stream0.mp2' -f ac3
> > > -ab 192 -ar 48000 '/home/mythtv/work/1/stream0.ac3'
> > > 2007-04-23 20:16:03
> > > ************************************************************
> > > 2007-04-23 20:16:03
> > > 2007-04-23 20:16:05 Terminated
> > >
> > > I am assuming that the new-er rpms are responsible for this
> > >
> > > I think someone else reported that transcode was broken, and that was
> > > updated the first time that ffmpeg was updated (over the last couple of
> > > days), it mighht be relevent as when I try to remove the newer rpms for
> > > ffmpeg and co, rpm reports that transcode is a dependence.
> >
> > ffmpeg have changed the meaning of the audio bit rate parameter (-ab) to
> > mean bits/sec and not Kbits/sec so in the example above you need to
> > change '-ab 192'  to '-ab 192k'.
> >
> > I've already updated the encoding profiles to the new format  in svn
> > trunk and fixes but forgot about  those instances in the script where it
> > is used.
> >
> > Paul H.
> >
> >
> > _______________________________________________
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> > mythtv-users at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

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