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Thread: thumbnail creation for videos crashes ffmpeg

  1. #1
    Join Date
    Oct 2010
    Posts
    4

    Default thumbnail creation for videos crashes ffmpeg

    1st@all: I know it's a still known problem due to limitations of ffmpeg ...

    but I think, it would be helpful to post my problem too ...

    My System: Athlon X2 5200 / 2GB RAM / 500 GB Samsung HD / Win7prof. x32
    My Mezzmo: 2.1.11.0 (downloaded 2010-10-20)

    There's a folder containing about 50 small avi-files, ripped from DVD in the same format with the same software
    only three of these files don't have a thumbnail ...
    but all of these files have the same ffmpeg information than the other ones ...
    so I can't find a difference betwenn the "good" and "bad" files ...

    here an ffmpeg-info from a "bad" file:
    Code:
    FFmpeg version SVN-r25446, Copyright (c) 2000-2010 the FFmpeg developers
      built on Oct 12 2010 10:38:21 with gcc 4.4.2
      configuration: --enable-memalign-hack --arch=x86 --target-os=mingw32 --cross-prefix=i686-mingw32- --enable-static --disable-shared --enable-zlib --disable-ffprobe --disable-ffplay --prefix=/media/windows-share/ffmpeg --extra-cflags=-U__STRICT_ANSI__ --enable-libmp3lame --enable-libx264 --enable-gpl --extra-libs='-lx264 -lpthread' --enable-runtime-cpudetect
      libavutil     50.32. 3 / 50.32. 3
      libavcore      0. 9. 1 /  0. 9. 1
      libavcodec    52.92. 0 / 52.92. 0
      libavformat   52.81. 0 / 52.81. 0
      libavdevice   52. 2. 2 / 52. 2. 2
      libavfilter    1.50. 1 /  1.50. 1
      libswscale     0.12. 0 /  0.12. 0
    [mpeg4 @ 03241fc0] Invalid and inefficient vfw-avi packed B frames detected
    
    Seems stream 0 codec frame rate differs from container frame rate: 30000.00 (30000/1) -> 25.00 (25/1)
    Input #0, avi, from 'D:\video\avi\1989.avi':
      Duration: 00:14:09.00, start: 0.000000, bitrate: 1438 kb/s
        Stream #0.0: Video: mpeg4, yuv420p, 676x384 [PAR 1:1 DAR 169:96], 25 fps, 25 tbr, 25 tbn, 30k tbc
        Metadata:
          strn            : Video 
        Stream #0.1: Audio: mp3, 48000 Hz, 2 channels, s16, 128 kb/s
        Metadata:
          strn            : Audio 
    At least one output file must be specified
    
    
    ---> DB Level Info: -99
    by excluding these three files the thumbnail creation works well ...
    by including these files, I get an error message from ffmpeg.exe ...

    tried out last pre-compiled win32 ffmpeg.exe from 2010-10-21 ... no changes ...

    Tested once more on another machine with same mezzmo-version:
    2nd TestSystem: Intel Core2Duo 8600 / 8GB RAM / 120GB SSD / 1TB HD / Win7prof. x64
    same result ...

    any ideas !?

  2. #2
    Join Date
    Nov 2007
    Location
    Melbourne, Australia
    Posts
    11,642

    Default

    Unfortunately all I can offer is a newer build of ffmpeg that most probably still won't process those files, but won't give you a crash window either - if you'd like that, please send a message to support (at) conceiva (dot) com and I'll send you the download link.

    Mezzmo Android: Install it on your tablet, smartphone, Android TV or Amazon Fire to browse and stream files from your Mezzmo library to all your devices. Full details at http://www.conceiva.com/products/mez...mo_android.asp
    Mezzmo for Kodi Add-on: Install it into Kodi to stream files from your Mezzmo library directly in Kodi. Full details at http://www.mezzmo.com/wiki/doku.php?...odi_user_guide
    Mezzmo for Roku App: Install it onto your Roku to stream files from your Mezzmo library. Full details at http://www.mezzmo.com/wiki/doku.php?...oku_user_guide
    Wiki: User Guides & Reference Manual at http://www.mezzmo.com/wiki
    Facebook: http://www.facebook.com/Mezzmo.DLNA.Server
    Twitter: https://twitter.com/conceiva_mezzmo
    Web: http://www.mezzmo.com

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