[mythtv-users] MythArchive/dvdauthor fails; Cannot Find Chapter 2 (Result: 1)

[Dirk Beer]

Did anyone ever figure out this problem with mytharchive (mplex gives
error like "Can't find next AC3 frame: @ 139008 we have e82e - broken
bit-stream?") ?

I tried Paul's suggestions, but nothing helped. I'm running the
current svn on knoppmyth R5D1. I get the problem with all the PVR-350
recordings I've tried (3 total).

Dirk

On 6/7/06, Mark Prinz <mprinz at gmail.com> wrote:
> Paul,
>
> Thanks for the tips. I tried it again with only 'Always Use
> Mythtranscode' selected and another file...same issue.
>
> I am going to try it again without 'Always Use Mythtranscode'
> selected. If that doesn't work, I am going to try the pieces
> individually to see if I can't get to the bottom of this.
>
> Thanks again for the help.
>
> Mark
>
>
> On 6/7/06, Paul Harrison <mythtv at dsl.pipex.com> wrote:
> > Mark Prinz wrote:
> > > Paul,
> > >
> > > Thanks for the assistance.
> > >
> > > The audio file you referenced was available prior to making the 'Use
> > > FIFO' change; it sounded fine.
> > >
> > > However, I unchecked 'Use FIFO' ran again, and it failed at mplex...no
> > > 'stream0.ac3' was ever created.
> > >
> > > The source is just one of my recordings; I have it set to, ' MPEG-2
> > > Hardware Encoder' in Recording Profiles (I have a PVR-250).
> > >
> > > Also, here is part of the mythlog...any suggestions?
> > >
> > > Input #0, mpeg, from '/video/recordings/1054_20060526233000.mpg':
> > >   Duration: 00:29:50.6, start: 0.333811, bitrate: 5096 kb/s
> > >   Stream #0.0[0x1e0], 29.97 fps(r): Video: mpeg2video, yuv420p,
> > > 480x480, 6000 kb/s
> > >   Stream #0.1[0x1c0]: Audio: mp2, 48000 Hz, stereo, 384 kb/s
> > >
> > > Here is the latter part of mythburn.log after unselecting 'Use FIFO':
> > >
> > > DVDAuthor::spumux, version 0.6.11.
> > > Build options: gnugetopt iconv freetype
> > > Send bugs to <dvdauthor-users at lists.sourceforge.net>
> > >
> > > INFO: Locale=en_US.UTF-8
> > > INFO: Converting filenames to UTF-8
> > > INFO: PNG had 2 colors
> > > INFO: PNG had 2 colors
> > > INFO: Constructing blank img
> > > INFO: Pickbuttongroups, success with 1 groups, useimg=1
> > > WARN:  Read 0, expected 4
> > > INFO: Found EOF in .sub file.
> > > INFO: Max_sub_size=2944
> > > INFO: 1 subtitles added, 0 subtitles skipped, stream: 32, offset: 0.13
> > >
> > > Statistics:
> > > - Processed 0 subtitles.
> > > - The longest display line had -1 characters.
> > > - The maximum number of displayed lines was 0.
> > > - The normal display height of the font arial.ttf was 0.
> > > - The bottom display height of the font arial.ttf was 0.
> > > - The biggest subtitle box had 2944 bytes.
> > > Menu items per page 3
> > > Chapters per recording 8
> > > Creating DVD XML file for dvd author
> > > Menu page 1
> > > Video length is 1791 seconds. Each chapter will be 223 seconds
> > > Total size of video files, before multiplexing, is 640 Mbytes, audio
> > > is 40 MBytes, menus are 4 MBytes.
> > > Video will fit onto DVD. 3773.0 MBytes of space remaining on recordable DVD.
> > > Multiplexing MPEG stream to /video/archive/work/1/final.mpg
> > > Available streams - video and one audio stream
> > > **ERROR: [mplex] Can't find next AC3 frame: @ 973056 we have 27ee -
> > > broken bit-stream?
> > > ************************************************************
> > > ERROR: mplex failed with result 1
> > > ************************************************************
> > >
> > > Terminated
> > >
> > It's definitely mplex that is falling over because the ac3 audio stream
> > is corrupted. There's  a couple of other thing you could try. On the
> > settings page set the "always run mythtranscode" option. That option
> > will always run mythtranscode --mpeg to try to clean up the time codes
> > and stuff in the file. If you have a cut list for the file and you set
> > mytharchive to use it then mythtranscode will already have been run on
> > the file so this option wont help in that case.
> >
> > The other option is change the  "Always Encode to AC3" option so it is
> > not selected. The script will then use the original mp2 audio track in
> > that case. The only problem with changing that option is some standalone
> > DVD players may have problems playing it. Most, probably all, software
> > players like xine wont have any problem playing it.
> >
> > Is this just one file that is giving you problems or all your
> > recordings? It could just be that this file is slightly corrupted and
> > the tools we are using aren't smart enough to spot this and carry on
> > regardless.
> >
> > Paul H.
> >
> >
> >
> >
> >
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> >
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