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  • Librairies et logiciels spécifiques aux médias

    10 décembre 2010, par

    Pour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
    Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel ; FFMpeg avec le maximum de décodeurs et (...)

  • 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

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

Sur d’autres sites (6254)

  • FFMPEG read audio convenience function

    7 mars 2016, par Phlox Midas

    In Matlab, there’s a function called audioread that takes a file name as input and returns a vector of samples and the sample rate like this :

    [samples, sampleRate] = audioread(fileName);

    I’ve been programming FFMPEG but finding it very low level. I have a file being read using a technique similiar to this. Is there any such equivalent C function in FFMPEG as there is in Matlab so I don’t have to fiddle with the low level stuff ? Or any library that can provide a nice API like this for FFMPEG (though I would just prefer this one function) ?

  • Grep ffmpeg time/duration to get progress stream ?

    2 février 2014, par paulkon

    Is there a way to grep ffmpeg's unfriendly output to get the progress (time/duration) into a variable ? I've tried this on powershell already but i can't get seem to get a hold of ffmpeg's continuous output via pipe redirection and using the --line-buffered flag in grep.

    Here is what I came up with but it only returns after the encoding process has finished.

    ffmpeg -i $input $output 2>&1 | grep --line-buffered -oP "(?<=time=)[0-9:]*"

  • How to convert (re-wrap) Transport Stream to MPEG-4 container in iOS app ?

    27 janvier 2015, par Aleksandr Suvorov

    I have a live stream in .ts format, containing AAC audio and H.264 video. I want to play it on iOS devices. I tried to use a movie player based on FFmpeg to decode and play video, but the audio was lagging.

    Can I rewrap this Transport Stream to an MPEG-4 container to play on iOS devices – without converting it server-side ?

    The server returns me a URL of the .ts live stream and my goal is to play this stream on iOS devices without an .m3u8 playlist because I can’t get it from the server.

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