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Autres articles (83)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

Sur d’autres sites (15329)

  • FFMPEG : add multiple drawtexts, vertically stacked, to a video

    21 septembre 2020, par Ali Doggaz

    I wish to add several texts to a video. The texts should be vertically aligned, in the top center of the video.
here is what I tried for now :

    


    n = len(titles) #Titles a list containing all the texts we will add to the video
p = 0
for text in titles:
    os.system(
        fr'ffmpeg -i output{p}.mp4 -filter:v drawtext="fontfile=Lato- 
        Black.ttf:fontcolor=black:fontsize=60:text=' + f"'{text}':" + f'y=200-{(n-p) * 62}:x=(w- 
        text_w)/2"-y output{p + 1}.mp4')
    p = p + 1


    


    As you can see, all the texts should have x=(w- text_w)/2 as their abscissa (which is constant ?), but they're never aligned. There is always a sort of padding that pushes the next text added, a bit more to the right.
I also tried to use x=w/2 which is constant and the texts are still not vertically aligned.

    


  • FFMPEG filter instances names don't work with "sendcmd" ?

    13 septembre 2023, par VladStepu2001

    I have two drawbox filter instances that I need to animate separately.
    
I've used sendcmd for the one instance already, and it worked fine.

    


    But when I've added the second one, I gave a name to both of them like this :

    


    drawbox@one=0:0:iw:ih:red:fill,drawbox@two=0:0:iw:ih:black:fill


    


    Then, I've tried to use sendcmd like this :

    


    drawbox@one=0:0:iw:ih:red:fill,drawbox@two=0:0:iw:ih:black:fill,
sendcmd=c='0.0-5.0 [expr] drawbox@one w W*(T/5)
           0.0-5.0 [expr] drawbox@two h H*(T/5)'


    


    But that didn't work, the rectangles stayed still.

    


    What I am doing wrong ?

    


  • How to extract transparent images in video with FFMPEG

    17 avril 2021, par El Šidëyøusš

    I have an Mp4 video with a black background, I managed to extract the images from the video with Ffmpeg but these images have a black background I would like to know how to make these images transparent, if it is possible with FFmpeg, thanks for your help

    


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