[mythtv-users] Transcoding Proglems With ffmpeg

[Stuart Larson]

> I'm an Ubuntu user and can't transcode. I read that this is due to a
> problem with the default version of ffmpeg, so I compiled the latest
> SVN code from source.  Here's the configure command that I used:
>
>     ./configure --enable-mp3lame --enable-libogg --enable-vorbis \
>     > --enable-faad --enable-faac --enable-libgsm --enable-xvid \
>     > --enable-gpl
>
> This successfully installed ffmpeg under /usr/local/bin.  I then
> deleted the Ubuntu version so that MythTv would be sure to pick the
> right version.
>
> THe problem is that I'm getting the following error message in my
> mythbackend log file when I try and transcode:
>
>     2006-09-26 21:22:57.513 Transcoding from
> /var/lib/mythtv//1003_20060924200000_20060924203000.nuv to
> /var/lib/mythtv//1003_20060924200000_20060924203000.nuv.tmp
>     2006-09-26 21:22:57.802 Unknown video codec:
>     2006-09-26 21:22:57.819 Transcoding
> /var/lib/mythtv//1003_20060924200000_20060924203000.nuv failed
>     2006-09-26 21:22:57.829 Deleting
> /var/lib/mythtv//1003_20060924200000_20060924203000.nuv.tmp
>
> This is the same error that I got before I "fixed" ffmpeg.  I then
> tried to convert the same file using mythtranscode.  Here's what I
> got:
>
>     /var/lib/mythtv$ sudo mythtranscode -i
> 1003_20060924200000_20060924203000.nuv
>     Stream: 0 Type: 0
>     Stream: 1 Type: 1
>     Input #0, mpeg, from '1003_20060924200000_20060924203000.nuv':
>       Stream #0.0: Video: mpeg2video, 480x480, 29.97 fps, 6000 kb/s
>       Stream #0.1: Audio: mp2, 48000 Hz, stereo, 384 kb/s
>     Output #0, vob, to '1003_20060924200000_20060924203000.nuv.tmp':
>       Stream #0.0: Video: mpeg2video, 480x480, 29.97 fps, q=2-31, 6000
> kb/s
>       Stream #0.1: Audio: mp2, 48000 Hz, stereo, 384 kb/s
>     Segmentation fault
>
> Finally, I'm using the 0.18.1.20050510-1 version of MythTv, the
> default version available to Ubuntu 6.06 users.
>
> Does anyone know how I can begin to troubleshoot this problem?  I
> don't know what to try next.  Any help would be greatly appreciated.
>
> Thanks again!
>
> Tom Purl
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Pretty sure ffmpeg (even in SVN) doesn't support NUV