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Autres articles (35)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

  • De l’upload à la vidéo finale [version standalone]

    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

Sur d’autres sites (3549)

  • Downloading videos one by one with youtube-dl

    9 août 2019, par puter

    Im trying to execute the youtube-dl download command from node which is asynchronous and I have a bunch of videos that gets downloaded each time so I want to execute the downloadClip command as soon as each one finishes. How do I call this function in a chain like fashion so that only one video gets downloaded at a time ?

    var downloadClip = function( videoID, channelPath ) {
       var args = [
           '-o', config.fileName,
           '--download-archive', channelPath + '/' + config.archiveFile,
       ];

       var options = {
           cwd: channelPath
       };

       return new Promise( function( resolve, reject ) {
           ytdl.exec( videoID, args, options, function( err, output ) {
               if ( err ) {
                   reject( err );
               } else {
                   resolve( output );
               }
           } );
       } );
    };
  • ffmpeg scale down video dynamically (squeeze-back) or zoompan out to smaller than original

    27 avril, par Sam

    I have 2 videos, I'm trying to overlay one on top of the other, and have it shrink down in an animated fashion until it appears like a picture-in-picture setup. Then, after a few seconds it should scale back up.

    


    This is what I am trying to achieve (these would be videos, not images) :
enter image description here

    


    This is the closest I've been able to get, but, crucially, zoompanning "out" (as opposed to "in") does not appear to work ; so, of course, this does not work :

    


    ffmpeg -i bg.mov -i top.mov -filter_complex "[0:v]zoompan=z='pzoom-0.1':d=1, setpts=PTS-STARTPTS[top]; [1:v]setpts=PTS-STARTPTS+2/TB, scale=1920x1080, format=yuva420p,colorchannelmixer=aa=1.0[bottom]; [top][bottom]overlay=shortest=0" -vcodec libx264 out.mp4

    


    Is this achievable with ffmpeg ?

    


  • save sequence of frame as BMP not PNG

    27 décembre 2013, par user2922938

    I extract 100 frames from video file and i save each frame as (.bmp) but i found that each frame format is PNG not BMP , how can I save sequence of frame (format as BMP not PNG as show in picture)in C# ?

    string name;            
    for ( int i = 0; i < 100; i++ )
    {
       Bitmap videoFrame = video.ReadVideoFrame( );  
       name = (i).ToString().PadLeft(5, '0');
       videoFrame.Save(@"D:\frames\" + name  + ".bmp");
       videoFrame.Dispose( );
    }

    video.Close( );
    MessageBox.Show(" Complete Convert video to sequence of image","Convert");

    enter image description here