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  • Soumettre bugs et patchs

    10 avril 2011

    Un logiciel n’est malheureusement jamais parfait...
    Si vous pensez avoir mis la main sur un bug, reportez le dans notre système de tickets en prenant bien soin de nous remonter certaines informations pertinentes : le type de navigateur et sa version exacte avec lequel vous avez l’anomalie ; une explication la plus précise possible du problème rencontré ; si possibles les étapes pour reproduire le problème ; un lien vers le site / la page en question ;
    Si vous pensez avoir résolu vous même le bug (...)

  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

  • Automated installation script of MediaSPIP

    25 avril 2011, par

    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
    You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
    The documentation of the use of this installation script is available here.
    The code of this (...)

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  • ffmpeg : Setting GOP structure, Picture structure when converting to MPEG-2 [on hold]

    27 juin 2017, par Jude

    I have a yuv file named src9_ref__625.yuv from the following website :
    ftp://vqeg.its.bldrdoc.gov/SDTV/VQEG_PhaseI/TestSequences/Reference/

    It contains 720 pixels (1440 bytes) per horizontal line and has 576 active lines per frame. Each line is in multiplexed 4:2:2 component video format as follows : Cb Y Cr Y ... 720 Y bytes per line, 360 Cb bytes per line, 360 Cr bytes per line.

    How to convert that file to MPEG-2 with following coding parameters :

    • GOP Structure : Automatic
    • Picture Structure : Alw Frame
    • Profile/Level : MP@ML

    ...as suggested in this article :
    http://iie.fing.edu.uy/publicaciones/2009/JL09/JL09.pdf

  • ffmpeg problem in ubuntu (libavcodec.so)

    7 décembre 2016, par lyuba

    I run Ubuntu and try to use the ffmpeg wrapper in Java from here :
    http://code.google.com/p/javacv/

    It seems to work fine on other systems, but in Ubuntu the project crashes
    with the following mistake :
    Exception in thread "main" java.lang.UnsatisfiedLinkError : Error looking up
    function ’avcodec_decode_video2’ : /usr/lib/i686/cmov/libavcodec.so :
    undefined symbol : avcodec_decode_video2

    ffmpeg is working great from the command line, though.

    JavaCV author recommended me to check this link :
    http://linux-tipps.blogspot.com/2009/05/pretending-package-is-installed-by.html

    Probably I’m doing something wrong, but it cannot reinstall libavcodec51
    like this.

    So the questions are :
    1. Is those solution above a good one so I should bring it to success
    somehow ?
    2. What are the other ways to solve the problem ?

    Thank you for your suggestions in advance !

  • Error decoding timecode using ffprobe

    16 novembre 2016, par Pablo Montilla

    I’m using ffprobe to get timecode from an mxf which has DF timecode but with a non DF frame rate. I’m getting the error Drop frame is only allowed with 30000/1001 or 60000/1001 FPS.

    I’m running ffprobe -i "IMX 10Bit.mxf" and getting the following :

      ffprobe version 3.2 Copyright (c) 2007-2016 the FFmpeg developers
    
    built with gcc 5.4.0 (GCC)
    
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
    
    libavutil      55. 34.100 / 55. 34.100
    
    libavcodec     57. 64.100 / 57. 64.100
    
    libavformat    57. 56.100 / 57. 56.100
    
    libavdevice    57.  1.100 / 57.  1.100
    
    libavfilter     6. 65.100 /  6. 65.100
    
    libswscale      4.  2.100 /  4.  2.100
    
    libswresample   2.  3.100 /  2.  3.100
    
    libpostproc    54.  1.100 / 54.  1.100
    
  [mxf @ 00000000025a3660] Drop frame is only allowed with 30000/1001 or 60000/1001 FPS
    
  Input #0, mxf, from 'IMX 10Bit.mxf':
    
    Metadata:
    
      uid             : 2b3801ea-ec5e-4dc1-ab3a-dba9a2b30ce4
    
      generation_uid  : 2b3801ea-ec5e-4dc2-ab3a-dba9a2b30ce4
    
      product_uid     : 00000000-0000-0000-0000-000000000000
    
      modification_date: 2009-11-04T10:39:42.000000Z
    
      material_package_umid: 0x060A2B340101010501010D43130000005C91020063D700800210F3FFFE154618
    
    Duration: 00:00:19.52, start: 0.000000, bitrate: 62580 kb/s
    
      Stream #0:0: Video: mpeg2video (4:2:2), yuv422p(tv, top first), 720x608 [SAR 152:135 DAR 4:3], 50000 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
    
      Metadata:
    
        file_package_umid: 0x060A2B340101010501010D43130000005D91020063D700800210F3FFFE154618
    
      Stream #0:1: Audio: pcm_s24le, 48000 Hz, 4 channels, s32 (24 bit), 4608 kb/s
    
      Metadata:
    
        file_package_umid: 0x060A2B340101010501010D43130000005D91020063D700800210F3FFFE154618

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