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Autres articles (107)

  • 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

  • Problèmes fréquents

    10 mars 2010, par

    PHP et safe_mode activé
    Une des principales sources de problèmes relève de la configuration de PHP et notamment de l’activation du safe_mode
    La solution consiterait à soit désactiver le safe_mode soit placer le script dans un répertoire accessible par apache pour le site

  • 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 (...)

Sur d’autres sites (13022)

  • Create time lapse video from other video

    17 décembre 2023, par Orlando

    Using avconv (or even ffmpeg, so I can use as a reference), how can I create a time lapse video by taking only anchor/reference frames from another video ? Most information I find is on how to create a time lapse video by combining images, and I'd like to do it by extracting frames from a video. Say, if a video is 30 seconds long at 30 FPS, I'd like to take 60 out of those 900 frames (900/60 = every 15 seconds) to produce a 2 second video.

    


  • Rendering list of images over a video with ffmpeg does not work if video has audio

    12 mai 2023, par Alex Stirken

    I'm using FFmpegKit for Flutter to render a list of changing images onto a video.
Im using the following arguments :

    


    final arguments = [
  '-y',
  '-i', inputVideoPath,
  '-framerate', '$fps',
  '-start_number', '100',
  '-i', '${tempDirectoryPath}/%3d.png',
  '-filter_complex', '[1:v]scale=720:1280 [ovrl]; [0:v][ovrl]overlay=0:0,format=yuv420p[v]',
  '-map', '[v]',
  '-c:v', 'libx264',
  "-preset", "medium",
  '-pix_fmt', 'yuv420p',
  '-shortest',
  '$outputFilePath'
];


    


    It works like a charm as long as the video file (.mp4) has no audio stream. If the video has an audio stream, only the first image is getting rendered (overlayed) over the video.

    


    Any suggestions ?

    


  • Best video format for video processing and converting to mp4

    29 août 2014, par Max Grigoriev

    I may have video in selected format and I should make some video changes - add logo to the whole video as example and then convert to mp4. Right now original file is in h.264/mp4 format too. As I understand to add logo original file should be decoded to frames then logo should be added and then frames should be encoded to H.264 and packed to mp4. Since I’m newbie in video processing maybe there’s a raw video format which removes decoding stage and it saves time and cpu ?

    Thanks

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