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  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

  • 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 (...)

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  • ffmpeg / video processing : make video repeat itself without duplicating content ?

    31 mars 2022, par RocketNuts

    Suppose I have a video file that is 20 MB in size and lasts 30 seconds.

    


    I want to create a new video file that basically consists of the existing video, repeated 10 times. So the new video should last 300 seconds (5 minutes) and contain the same content every 30 seconds.

    


    I could of course append this video to itself 10 times, resulting in a file of approximately 200 MB. But this seems very redundant, since obviously the same content is in there tenfold. I was hoping for a somewhat more intelligent approach, where the same 30 seconds of video is somehow 'referenced' 10 times over.

    


    Do common encoders or container formats (say h.264 in a .mp4 or .mkv container) support this ? And by any chance is there a way to pull this off with ffmpeg ?

    


  • How to merge two videos, so that the scale of the video takes up 50% of the size of the output video

    3 avril 2023, par Gadzhimurad Radzhabov

    How to merge two videos, so that the scale of the video takes up 50% of the size of the output video.

    


    For example I need to merge two videos so that one half of the video takes up 50% of the output video size from the top and the other half takes up 50% of the output video size from the bottom.

    


    i.e. to divide both video halves in the output video !

    


    Example of such video youtube.com/shorts/InBFBwkUsgI

    


    I tried to ask questions GPT but did not get a normal answer, that is, I do not know how to implement it in general heard that you can implement through vstack

    


  • How to combine a video with audio from another video using FFMPEG ?

    21 août 2023, par Sigmond Kukla

    I have two videos of the same length that I'd like to combine. Video A has audio, video B does not. I'd like to take the audio from video A and put it onto Video B. I'd like to do this with FFMPEG, but I can't figure out the arguments I need ? Should I use map ?

    


    There's a lot of questions about combining a video with audio, but not two videos.

    


    Do I maybe need an intermediate step of converting my original video to audio ?

    


    I have tried using this FFMPEG command, and a couple of variations. All of the resulted in just Video A (the one with audio) being the output.

    


    ffmpeg -i videoB.mp4 -i video A.mp4 -c:v copy -c:a aac output.mp4


    


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