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  • Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs

    12 avril 2011, par

    La manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
    Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras.

  • Script d’installation automatique de MediaSPIP

    25 avril 2011, par

    Afin de palier aux difficultés d’installation dues principalement aux dépendances logicielles coté serveur, un script d’installation "tout en un" en bash a été créé afin de faciliter cette étape sur un serveur doté d’une distribution Linux compatible.
    Vous devez bénéficier d’un accès SSH à votre serveur et d’un compte "root" afin de l’utiliser, ce qui permettra d’installer les dépendances. Contactez votre hébergeur si vous ne disposez pas de cela.
    La documentation de l’utilisation du script d’installation (...)

  • 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 (...)

Sur d’autres sites (6154)

  • More detail about ffmpeg command

    5 septembre 2020, par user1955215

    In this link After merge videos, the duration is too long - ffmpeg user Gyan has provided a solution shown below

    


    ffmpeg -i intro.mp4 -s hd720 -r 30000/1001 -video_track_timescale 30k -c:a copy newintro.mp4


    


    As the ffmpeg command above did what I was struggling to do, I am eager to learn more. Pointers in that direction will help. Thanks.

    


  • Can I know the exact timestamps of a ffmpeg trim ?

    17 juin 2021, par Vincent Garcia

    I want to trim very long video (e.g. >20h long) and I use ffmpeg this way :

    


    ffmpeg -ss 7200 -i /path/to/my/video.mp4 -t 600 -codec copy out.mp4


    


    This is supposed to provide a trim of 10 minutes starting 2 hours in the input video.
As I read online, by placing -ss before the -i option, I'll get an approximate trim.

    


    Is there a way to know precisely when the trim actually started ?

    


    Thank you.

    


  • How to create an animated GIF using FFMPEG with an interval ?

    26 octobre 2014, par Jeff Wilbert

    Hello fellow overflowers,

    A brief overview of what I’m trying to accomplish ; I have a site that will accept video uploads, uploads get converted into the mp4 format to be uniformed and playable on the web using one of the many available players. That part is all fine and dandy.

    The problem now is I want to show the user a short scaled preview (animated gif) of the video before they click to play it. The code I’m working with now is

    ffmpeg -i test.mp4 -vf scale=150:-1 -t 10 -r 1 test.gif

    Which works for creating a scaled animated gif with a fixed width of 150px at a rate of 1 frame per second but its only an animation of the first 10 seconds of the video. I’m trying to do something that spreads out the frame gap to cover the whole video length but create an animated gift that’s no more then 10 seconds long.

    For example say I have a video that’s 30 seconds I want the gif to be 10 seconds long but cover frames of the entire 30 seconds so it might start at frame 3 or 3 seconds in and create a frame in the gif, then at 6 seconds in the video create another frame, then 9 seconds in another, and so forth where the final outcome is

        example video 30 seconds long          example video 1 minute 45 second long 
    

    
video position - gif frame/per second      video position - gif frame/per second
    
      00:03:00   1                               00:10:50   1
    
      00:06:00   2                               00:21:00   2
    
      00:09:00   3                               00:31:50   3
    
      00:12:00   4                               00:42:00   4
    
      00:15:00   5                               00:52:50   5
    
      00:18:00   6                               01:03:00   6
    
      00:21:00   7                               01:13:50   7
    
      00:24:00   8                               01:24:00   8
    
      00:27:00   9                               01:34:50   9
    
      00:30:00   10                              01:45:00   10
    

    
  3 second interval between frames         10.5 second interval between frames

    Where you end up with an animated gif that’s 10 seconds long showing a preview of the entire video no matter the length of it. Which basically just boils down to
    video length / 10 (length of desired animated gif) = interval to use between frames but I don’t know how I can use that data to accomplish my problem...

    So does anyone have an idea or suggestion on how this can be accomplished with relative ease ? I can probably do it by calculating the length through code and running a command to extract each individual frame from the video that’s needed then generate a gif from the images but I’d like to be able to do it all with just one command. Thanks.

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