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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 images

    15 mai 2013

  • Taille des images et des logos définissables

    9 février 2011, par

    Dans beaucoup d’endroits du site, logos et images sont redimensionnées pour correspondre aux emplacements définis par les thèmes. L’ensemble des ces tailles pouvant changer d’un thème à un autre peuvent être définies directement dans le thème et éviter ainsi à l’utilisateur de devoir les configurer manuellement après avoir changé l’apparence de son site.
    Ces tailles d’images sont également disponibles dans la configuration spécifique de MediaSPIP Core. La taille maximale du logo du site en pixels, on permet (...)

Sur d’autres sites (13031)

  • FFMPEG : Output tiles onto a black background [closed]

    14 juin 2013, par MollyRazor

    I have the following command, which converts a video and also generates a 10x9
    tileset. Currently it gets the longer side and either generate a 90px wide or
    45px tall tiles. My problem is that each tile has to be 90x45 large, so in
    essence what I need is a properly resized and centered tile inside a black
    bounding box. How can I achieve this ?

    The resulting tile

    result

    What I would like to achieve

    like

    Actual command line

    ffmpeg -i K/vertical.mp4 .... vertical.out.mp4
    
ffmpeg -i K/vertical.mp4 -an -vsync vfr \
    
-vf select="isnan(prev_selected_t)+gte(t-prev_selected_t\,2)",scale="'if(gt(iw,ih),90,-1)':'if(gt(iw,ih),-1,45)'",tile="10x9" \
    
-qscale:v 3 './f/f%03d.jpg'

  • Converting with ffmpeg a .mov to uncompressed .avi results in a black screen in virtualdub [migrated]

    28 mai 2013, par TazgerO

    I am trying to convert a .mov to an uncompressed .avi with ffmpeg. As I want no quality loss, I am using the following ffmpeg command :

    ffmpeg -i toto.mov -vcodec copy -y toto.avi

    The convertion works perfectly (the video works in VLC) except that when I am opening the file with virtualdub I get a black screen.

    In VirtualDub, under file information I get the following :

    Frame size: 800x600, 30.000fps
    
Length: 802 frames
    
Decompressor: Internal DIB decoder

    If I am not specifying the -pix_fmt and -vcodec arguments, ffmpeg convert to mpeg-4 and yuv420p but I am loosing on the quality as my file shrunk to about 400Mo to 1Mo but the video works in virtualdub and this time the Decompressor is set to ffdshow Video Codec (FMP4). I doubt this is a ffdshow as I had another video working perfectly with the internal DIB decoder.

    Any idea, to get the image in virtualdub ?

  • avformat : Add black ops audio demuxer

    22 avril 2013, par Michael Niedermayer
    avformat : Add black ops audio demuxer

    Fixes Ticket2064
    

    Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavformat/Makefile
    • [DH] libavformat/allformats.c
    • [DH] libavformat/boadec.c

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