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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

Sur d’autres sites (6777)

  • how to make any filter's value that accept integer value be a function of the timestamp in ffmpeg ? [closed]

    30 novembre 2023, par rosner altamira

    For example, i am trying to apply blur effect to video in ffmpeg using gblur filter, i want the blur strength to gradually increase from 0 to 50 in 2 secs starting at 5 secs and fade back from 50 to 0 in 3 secs thus finishing at 15 secs. In summary the blur is between 5 and 15 secs but from 5 to 7, the effect will gradually grow from 0 to 50 and from 12 to 15 it will fade from 50 back to 0.

    


    here is what i tried :

    


    


    ffmpeg -i test-video.mp4 -loop 1 -t 5 -i test-image.jpg -filter_complex "[0:v]gblur=sigma='if( lte(t,5) + gte(t, 15), 0, if( between(t, 7, 12), 50, min( max(25t - 125, 0), max(-16.67t + 250, 0) ) ) )':enable='between(t,5,15)'[bg] ;[1:v]fade=in:0:30[ol] ;[ol]fps=fps=15[ol] ;[bg][ol]overlay=(W-w)/2 :(H-h)/2:enable='between(t,5,15)'[out]" -map "[out]" -map 0:a output_video.mp4

    


    


    Expectations :

    


    


    [0:v]gblur=sigma='if( lte(t,5) + gte(t, 15), 0, if( between(t, 7, 12), 50, min( max(25t - 125, 0), max(-16.67t + 250, 0) ) ) )':enable='between(t,5,15)'[bg] :

    


    


    The blur strength depends dynamically on the time (t) as described above, controlled by the expression.
The enable parameter ensures that this filter is only applied between 5 and 15 seconds.

    


    


    [1:v]fade=in:0:30[ol] :
[ol]fps=fps=15[ol] :
[bg][ol]overlay=(W-w)/2 :(H-h)/2:enable='between(t,5,15)'[out] :

    


    


    The overlay input should be faded in for 2 secs starting from 5secs and will last 10secs (same time for the blur)

    


    As result, i am getting Invalid char error. Seems like sigma does not accept the "t" timestamp variable.

    


  • Camera2 API switching camera during recording

    27 juin, par Max Efimov

    I'm working with Camera2 API and in my app it's important to switch the camera during recording. After each camera switch I save video fragment to disk, and after stopping the recording I merge videos into one using -f concat -safe 0 -i listPath -c copy finalPath command of FFmpeg for Android. When I open a separate video fragment, it looks correct, but when I open the merged video, videos recorded on the back camera are rotated 180 degrees. The problem is only in the merged video.

    



    In meta-tag of videos if video recorded on back camera, then "rotate" tag has 90 degrees, otherwise 270 degrees.

    



    As I understood when ffmpeg merges a videos it automatically rotates the video if it has different "rotate" tag in he's metatags.

    



    How I can solve this problem ?

    



    P.S Also I tried to use MP4Parser Library for merging, but it has the same problems.
    
P.P.S. -noautorotate param for ffmpeg does not help me.

    


  • How do I make non-interleaved AVI video in ffmpeg ?

    26 avril 2021, par Schwonder Reismus

    I'm trying to merge 2 uncompressed videos in Audacity just for fun. Back in the days, I did make non-interleaved AVI's in Sony Vegas, and it worked well. Now i'm trying it with open-source software. I'm not satisfied with the interleaved AVI's.

    


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