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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Qu’est ce qu’un éditorial

    21 juin 2013, par

    Ecrivez votre de point de vue dans un article. Celui-ci sera rangé dans une rubrique prévue à cet effet.
    Un éditorial est un article de type texte uniquement. Il a pour objectif de ranger les points de vue dans une rubrique dédiée. Un seul éditorial est placé à la une en page d’accueil. Pour consulter les précédents, consultez la rubrique dédiée.
    Vous pouvez personnaliser le formulaire de création d’un éditorial.
    Formulaire de création d’un éditorial Dans le cas d’un document de type éditorial, les (...)

  • 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 (...)

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  • ffmpeg simetimes generates twice a size of my original video, why ?

    9 novembre 2023, par John Smith

    Im using ffmpeg like this :

    


    ffmpeg -i sourceFile.mp4 -vcodec libx265 -crf 23 -acodec aac -max_muxing_queue_size 40000 destfile.mp4


    


    most of the time, it generates smaller files. Usually half of it, but occasionally I get 200 MB from a 1000 MB video.
Sadly some cases its the over way around. I had an .webm video, and the result was 3x the size ! But sometimes also an .mp4 source produces this. Why ?

    


  • ffmpeg sometimes generates twice a size of my original video, why ? [closed]

    9 novembre 2023, par John Smith

    Im using ffmpeg like this :

    


    ffmpeg -i sourceFile.mp4 -vcodec libx265 -crf 23 -acodec aac -max_muxing_queue_size 40000 destfile.mp4


    


    most of the time, it generates smaller files. Usually half of it, but occasionally I get 200 MB from a 1000 MB video.
Sadly some cases its the over way around. I had an .webm video, and the result was 3x the size ! But sometimes also an .mp4 source produces this. Why ?

    


  • How can I generate a video file directly from an FFmpeg filter with no actual input file ?

    26 août 2016, par blahdiblah

    FFmpeg has a number of video generating filters, listed in the documentation as "video sources" :

    • cellauto
    • color
    • mptestsrc
    • fei0r_src
    • life
    • nullsrc, rgbtestsrc, testsrc

    Those are great for using with other filters like overlay, but is there any way that I can generate a movie consisting of just one of those video sources without any input video ?

    Something like :

    ffmpeg -vf color=red" red_movie.mp4

    Except that that errors out with At least one input file must be specified.

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