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  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • 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 (...)

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

Sur d’autres sites (5136)

  • Any equivalent to '-c:v copy' for changing container of webm to mp4 video client-side in JS ?

    15 mars 2020, par programmingisphun

    Exploring the Mediarecorder API and really hope to get an mp4 output instead of webm. Prefer to stay client-side to reduce server resources and ffmpeg.js at 17mb doesn’t seem viable for online use.

    Discovered that one can create (Chrome/Firefox) a webm/h.264, which converts without re-encoding to an mp4 using FFMPEG. The resulting file opens fine in Quicktime MacOS (snippet source) :
    ffmpeg -i _inputfile_.webm -c:v copy _outputfile_.mp4

    Whereas this clever hack works to display the video maybe as an mp4 in the browser, but the downloaded file won’t open in Quicktime (just VLC, same for webm) :

    new Blob(recordedBlobs, {type: 'video/mp4'});
    
video.src = window.URL.createObjectURL(superBuffer);

    Therefore, wondering if there’s another JS hack to do what FFMPEG’s -c:v copy does, but to the blob bytes of the MediaRecorder’s recordedBlobs and give it the same mp4 container that’s accepted by Quicktime/etc ?

    Pastebin of current setup

  • Is there a MS-DRM client library for linux ?

    19 juin 2016, par qrtt1

    I have used the libraries (libavformat and libavcodec) to decode some MMS streaming urls. But some of them are protected by DRM. When I try to decode them, the library will warn about it

    In libavformat/asfdec.c :

    if (!s->keylen) {
    
    if (!guidcmp(&g, &ff_asf_content_encryption)) {
    
        av_log(s, AV_LOG_WARNING, "DRM protected stream detected, decoding will likely fail!\n");
    
    } else if (!guidcmp(&g, &ff_asf_ext_content_encryption)) {
    
        av_log(s, AV_LOG_WARNING, "Ext DRM protected stream detected, decoding will likely fail!\n");
    
    } else if (!guidcmp(&g, &ff_asf_digital_signature)) {
    
        av_log(s, AV_LOG_WARNING, "Digital signature detected, decoding will likely fail!\n");
    
    }
    
}

    The variable s is the struct AVFormatContext. My question is where to get the key ? It seems to decode it with a DRM key.

    I look the ASF Spec, and try to patch asfdec.c. Now, I have the acquiring license URL and key id. The problem can rewrite as ’Is there a MS-DRM client library for linux ?’ (old : How to decode a MMS streaming url with DRM by ffmpeg ?)

    Is it possible to use the license url and key id to get content key ?

  • Retain EXIF and ICC headers with client-side image processing. Closes #1207.

    11 juin 2013, par blueimp
    Retain EXIF and ICC headers with client-side image processing. Closes #1207.

    Use Exif data thumbnails if available, which increases UI performance
    
largely when displaying thumbnails of large image files.

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