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  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

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  • Call ffmpeg in c++ with system() function fails

    2 septembre 2014, par zhen lee

    I write a c++ program which needs to convert some(say:10) mp4 videos to flv videos.
    I use ffmpeg in my program for each video like this :

    system("ffmpeg -i video -filter:v yadif -ar 44100 -sameq -y -f flv temp.flv")

    however,it turns out :only first video will be converted successfully,the others will fail.
    it means :
    when i change the input order of which video to convert and re-execution the program,it behave the same:only the first video(will be different each time as i changed the input video order) will be converted successfully.

    The error message like :

    [h264 @ 0xaee0740] concealing 45 DC, 45 AC, 45 MV errors
    [h264 @ 0xaee0ce0] AVC : nal size 305665
    Last message repeated 1 times
    [h264 @ 0xaee0ce0] no frame !
    [h264 @ 0xaee1280] AVC : nal size 572993
    Last message repeated 1 times
    [h264 @ 0xaee1280] no frame !
    [aac @ 0xad9ccc0] channel element 0.13 is not allocated
    Error while decoding stream #0:1
    [aac @ 0xad9ccc0] channel element 0.13 is not allocated
    Error while decoding stream #0:1
    [aac @ 0xad9ccc0] channel element 0.13 is not allocated
    Error while decoding stream #0:1
    ......
    The most strange thing is :when i run ffmpeg command in bash shell,all video will be converted successfully .

    After google it,I have try these(certainly failed) :

    1. remove -sameq option,the result is same ;

    2. write ffmpeg commod in a shell script ConvertToFlv.sh like :

      /usr/local/bin/ffmpeg -i "$dir/$1" -filter:v yadif -ar 44100 -sameq -y -f flv "$dir/temp.fiv"

      then call this script in program like

      system("ConvertToFlv.sh"+video)

      or

      system("sh ConvertToFlv.sh"+video)

      The result is same.

    The ffmpeg configure is :

      ffmpeg version 0.9.1.git Copyright (c) 2000-2012 the FFmpeg developers
    
  built on Dec 17 2012 16:17:30 with gcc 4.1.2 20080704 (Red Hat 4.1.2-48)
    
  configuration: --enable-gpl --enable-postproc --enable-nonfree --enable-postproc --enable-swscale --enable-avfilter --enable-pthreads --enable-libxvid --enable-libx264 --enable-libmp3lame --enable-libfaac --disable-ffserver --disable-ffplay
    
  libavutil      51. 41.100 / 51. 41.100
    
  libavcodec     54.  4.100 / 54.  4.100
    
  libavformat    54.  1.100 / 54.  1.100
    
  libavdevice    53.  4.100 / 53.  4.100
    
  libavfilter     2. 62.101 /  2. 62.101
    
  libswscale      2.  1.100 /  2.  1.100
    
  libswresample   0.  7.100 /  0.  7.100
    
  libpostproc    52.  0.100 / 52.  0.100

    and my machine envirment is :

    Linux master 2.6.18-194.el5 #1 SMP Fri Apr 2 14:58:14 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

    I’m irritable now,I hope someone can give me some advice,really appreciate it.

  • Extract image from audio (Album Cover) using ffmpeg [on hold]

    30 mai 2015, par Ali Seyfollahi

    I need to create a Image from audio (Album Cover) using ffmpeg.

    I found here :
    Retrieve album art using FFmpeg

  • Fixed segfault with wavpack decoder on corrupted decorrelation terms sub-blocks.

    7 septembre 2011, par Laurent Aimar

    Fixed segfault with wavpack decoder on corrupted decorrelation terms sub-blocks.

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