#51 exits without message upon loading MPEG

open
nobody
Cinelerra (81)
5
2002-07-30
2002-07-30
Robert Forsman
No

When I attempt to create a resource in cinelerra by
loading the MPEG file downloaded from
http://escherdroste.math.leidenuniv.nl/index.php?menu=animation&sub=bmpeg&a=1&b=1
the application simply exits without any error message.

hvirtual-beta2-1
RedHat 7.2
Linux herakleion.purplefrog.com 2.4.18 #12 Sun Apr 7
19:42:45 EDT 2002 i686 unknown

Discussion

  • Logged In: YES
    user_id=83549

    You can't load mpeg video files directly. First, a table of
    contents needs to be created with mpeg3toc. Second, the
    table of contents needs to be loaded.

     
  • Robert Forsman
    Robert Forsman
    2002-08-02

    Logged In: YES
    user_id=467081

    I have had some conflicting experience.

    The MPEG files generated by the WinTV PVR can be opened by
    cinelerra without any preprocessing.

    giza:145 $ file *
    _dvcr001.mpg: MPEG system stream data
    _dvcr002.mpg: MPEG system stream data
    _dvcr003.mpg: MPEG system stream data
    _dvcr004.mpg: MPEG system stream data
    _dvcr005.mpg: MPEG system stream data
    _dvcr006.mpg: MPEG system stream data
    jl.xml: XML document text
    scene001.mpg: RIFF (little-endian) data, AVI
    zz3.mpg: MPEG system stream data

    But the MPEG of the Escher-derived work can not

    herakleion:8 $ file /home/thoth/ftp/Escher\ _Print\ Gallery_.mpg
    /home/thoth/ftp/Escher _Print Gallery_.mpg: MPEG system
    stream data

    The unix "file" utility considers them both to be MPEG
    streams. I don't have a tool which can examine the fine
    structure of an MPEG to find a difference that would explain
    the problem.

    Maybe someone else can explain why the WinTV MPEGS work.

    MORE IMPORTANTLY, cinelerra should be modified to issue an
    appropriate diagnostic (like "please run mpeg3toc on this
    file") and NOT just exit.

     
  • Robert Forsman
    Robert Forsman
    2002-08-02

    Logged In: YES
    user_id=467081

    Oh, mpeg3toc segfaults when run on the Escher mpg:

    herakleion:11 $ mpeg3toc /home/thoth/ftp/Escher\ _Print\ Gallery_.mpg escher.toc
    Segmentation fault (core dumped)

    Could there be any more doom without Gir in the room?