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  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

  • Les statuts des instances de mutualisation

    13 mars 2010, par

    Pour des raisons de compatibilité générale du plugin de gestion de mutualisations avec les fonctions originales de SPIP, les statuts des instances sont les mêmes que pour tout autre objets (articles...), seuls leurs noms dans l’interface change quelque peu.
    Les différents statuts possibles sont : prepa (demandé) qui correspond à une instance demandée par un utilisateur. Si le site a déjà été créé par le passé, il est passé en mode désactivé. publie (validé) qui correspond à une instance validée par un (...)

  • Contribute to translation

    13 avril 2011

    You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
    MediaSPIP is currently available in French and English (...)

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  • FFMPEG x264 (fourcc=0x21) codec is not working with OpenCV

    6 mars 2020, par dkac

    I'm trying to use mp4 format coding (fourcc=0x21) on OpenCV 3.2 without success. Probably I have a problem with my Ubuntu 18.04 setup but currently I'm running out of ideas how to fix it. First, I recompiled FFMPEG with x264 support. Than, recompiled OpenCV (with contrib and OPENCV_ENABLE_NONFREE=ON, WITH_FFMPEG=ON). It is still not working.

    



    I cannot use fourcc different than 0x21. I mean.. I cannot use another codec.

    



    Example :

    



    >>> import cv2
>>> out = cv2.VideoWriter('output.mp4', 0x21, 20.0, (640,480))
OpenCV: FFMPEG: tag 0x00000021/'!???' is not found (format 'mp4 / (null)')'


    



    However, this is working fine (other fourcc, codec) :

    



    >>> out = cv2.VideoWriter('output.mp4',0x31637661 , 20.0, (640,480))


    



    OpenCV compiled with FFMPEG support (version 3.2), cmake config :

    



    Video I/O:
DC1394 1.x:                  NO
DC1394 2.x:                  YES (ver 2.2.5)
FFMPEG:                      YES
  avcodec:                   YES (ver 57.107.100)
  avformat:                  YES (ver 57.83.100)
  avutil:                    YES (ver 55.78.100)
  swscale:                   YES (ver 4.8.100)
  avresample:                YES (ver 3.7.0)


    



    FFMPEG build with x264 support :

    



    ffmpeg -version
ffmpeg version N-96891-g60b1f85 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
configuration: --prefix=/home/user/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/user/ffmpeg_build/include --extra-ldflags=-L/home/user/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/user/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
libavutil      56. 42.100 / 56. 42.100
libavcodec     58. 73.102 / 58. 73.102
libavformat    58. 39.101 / 58. 39.101
libavdevice    58.  9.103 / 58.  9.103
libavfilter     7. 77.100 /  7. 77.100
libswscale      5.  6.100 /  5.  6.100
libswresample   3.  6.100 /  3.  6.100
libpostproc    55.  6.100 / 55.  6.100


    



    FFMPEG x264 simple conversion test is working :

    



    ffmpeg -i in.mp4 -vcodec libx264 -f mp4 out.mp4y
ffmpeg version N-96891-g60b1f85 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
configuration: --prefix=/home/user/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/user/ffmpeg_build/include --extra-ldflags=-L/home/user/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/user/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
libavutil      56. 42.100 / 56. 42.100
libavcodec     58. 73.102 / 58. 73.102
libavformat    58. 39.101 / 58. 39.101
libavdevice    58.  9.103 / 58.  9.103
libavfilter     7. 77.100 /  7. 77.100
libswscale      5.  6.100 /  5.  6.100
libswresample   3.  6.100 /  3.  6.100
libpostproc    55.  6.100 / 55.  6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'in.mp4':
Metadata:
   major_brand     : isom
   minor_version   : 512
   compatible_brands: isomiso2avc1mp41
   encoder         : Lavf57.83.100
Duration: 00:00:10.00, start: 0.000000, bitrate: 3826 kb/s
 Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x960, 3825 kb/s, 10 fps, 10 tbr, 10240 tbn, 20 tbc (default)
Metadata:
  handler_name    : VideoHandler
File 'out.mp4y' already exists. Overwrite? [y/N] y
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))


    


  • FFMPEG x264 (fourcc=0x21) codec is not working with OpenCV

    6 mars 2020, par dkac

    I’m trying to use mp4 format coding (fourcc=0x21) on OpenCV 3.2 without success. Probably I have a problem with my Ubuntu 18.04 setup but currently I’m running out of ideas how to fix it. First, I recompiled FFMPEG with x264 support. Than, recompiled OpenCV (with contrib and OPENCV_ENABLE_NONFREE=ON, WITH_FFMPEG=ON). It is still not working.

    I cannot use fourcc different than 0x21. I mean.. I cannot use another codec.

    Example :

    >>> import cv2
    
>>> out = cv2.VideoWriter('output.mp4', 0x21, 20.0, (640,480))
    
OpenCV: FFMPEG: tag 0x00000021/'!???' is not found (format 'mp4 / (null)')'

    However, this is working fine (other fourcc, codec) :

    >>> out = cv2.VideoWriter('output.mp4',0x31637661 , 20.0, (640,480))

    OpenCV compiled with FFMPEG support (version 3.2), cmake config :

    Video I/O:
    
DC1394 1.x:                  NO
    
DC1394 2.x:                  YES (ver 2.2.5)
    
FFMPEG:                      YES
    
  avcodec:                   YES (ver 57.107.100)
    
  avformat:                  YES (ver 57.83.100)
    
  avutil:                    YES (ver 55.78.100)
    
  swscale:                   YES (ver 4.8.100)
    
  avresample:                YES (ver 3.7.0)

    FFMPEG build with x264 support :

    ffmpeg -version
    
ffmpeg version N-96891-g60b1f85 Copyright (c) 2000-2020 the FFmpeg developers
    
built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
    
configuration: --prefix=/home/user/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/user/ffmpeg_build/include --extra-ldflags=-L/home/user/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/user/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
    
libavutil      56. 42.100 / 56. 42.100
    
libavcodec     58. 73.102 / 58. 73.102
    
libavformat    58. 39.101 / 58. 39.101
    
libavdevice    58.  9.103 / 58.  9.103
    
libavfilter     7. 77.100 /  7. 77.100
    
libswscale      5.  6.100 /  5.  6.100
    
libswresample   3.  6.100 /  3.  6.100
    
libpostproc    55.  6.100 / 55.  6.100

    FFMPEG x264 simple conversion test is working :

    ffmpeg -i in.mp4 -vcodec libx264 -f mp4 out.mp4y
    
ffmpeg version N-96891-g60b1f85 Copyright (c) 2000-2020 the FFmpeg developers
    
built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
    
configuration: --prefix=/home/user/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/user/ffmpeg_build/include --extra-ldflags=-L/home/user/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/user/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
    
libavutil      56. 42.100 / 56. 42.100
    
libavcodec     58. 73.102 / 58. 73.102
    
libavformat    58. 39.101 / 58. 39.101
    
libavdevice    58.  9.103 / 58.  9.103
    
libavfilter     7. 77.100 /  7. 77.100
    
libswscale      5.  6.100 /  5.  6.100
    
libswresample   3.  6.100 /  3.  6.100
    
libpostproc    55.  6.100 / 55.  6.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'in.mp4':
    
Metadata:
    
   major_brand     : isom
    
   minor_version   : 512
    
   compatible_brands: isomiso2avc1mp41
    
   encoder         : Lavf57.83.100
    
Duration: 00:00:10.00, start: 0.000000, bitrate: 3826 kb/s
    
 Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x960, 3825 kb/s, 10 fps, 10 tbr, 10240 tbn, 20 tbc (default)
    
Metadata:
    
  handler_name    : VideoHandler
    
File 'out.mp4y' already exists. Overwrite? [y/N] y
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))

  • configure : Avoid requiring c99wrap for working around msys path issues

    14 novembre 2013, par Martin Storsjö
    configure : Avoid requiring c99wrap for working around msys path issues

    Msys is unable to convert unix style absolute paths to windows style
    
paths when combined with certain multichar MSVC options such as

    - Fo<file>. We used to work around this issue by passing them as two
    
separate parameters separated by a space to c99wrap, which then mapped
    
them back to the actual parameter format that MSVC uses.
    

    The only paths that actually are an issue are absolute unix style
    
paths, and the only place such absolute paths are used with the output
    
arguments (-Fo, -Fe, -Fi, -out :) are for the temp files within configure.
    

    By setting TMPDIR to . for msvc/icl builds, we never need to use
    
absolute unix style paths for the file output, and we can use the
    
actual proper form of the file output parameters. This avoids requiring
    
the c99wrap wrapper for remapping the parameters for cases where the
    
c99 converter isn’t invoked at all (MSVC2013 and ICL).
    

    Signed-off-by : Martin Storsjö <martin@martin.st>
    • [DH] configure

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