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  • Configurer la prise en compte des langues

    15 novembre 2010, par

    Accéder à la configuration et ajouter des langues prises en compte
    Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
    De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
    Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

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  • vc1 : Fix mb_height for field pictures

    14 décembre 2013, par Michael Niedermayer
    vc1 : Fix mb_height for field pictures

    Tables are always allocated now with sufficient space for either progressive
    
or interlaced content. The alternative would be to detect a change
    
and reallocate.
    

    This fixes decoding of a sample.
    

    Signed-off-by : Martin Storsjö <martin@martin.st>
    • [DH] libavcodec/vc1.c
    • [DH] libavcodec/vc1dec.c

  • How to check if a .mp4 file is not corrupt and not missing movie frames or audio segments programmatically

    2 novembre 2019, par forgodsakehold

    With youtube-dl I was able to download quite a couple of .mp4 files. However, I have just discovered, after manually playing some of them, that they are missing movie frames in some parts while still playing audio (so a blank screen is shown), or missing audio while still playing movie frames.

    Hence,
    (1) Why doesn’t youtube-dl detect or warn against such a scenario ? It looks like the movie segments and audio track were merged and .mp4 produced without any warning. Is there a way to configure youtube-dl to detect such cases and redownload the movie ?
    (2) Otherwise, are there other ways to detect such cases programmatically ? (considering that one might have thousands of such .mp4 files and may not be able to manually go thru all of them ?) A solution with FFmpeg or php will be appreciated.

  • Raw extraction of frames from a movie

    29 septembre 2016, par vkubicki

    I would like to extract images from a grayscale mj2 movie. Each pixel is encoded using 16 bits. Since this is a technical movie, I need to extract the value at each pixel without processing, as those values linearly map to a physical quantity (a heatmap from an infrared camera). I am using Scala, and I do not find any suitable solution for a direct extraction (either in Scala or in Java, but I am a beginner). Therefore I intend to use ffmpeg to extract individual frames on the disk, then load them as BufferedImage in Scala and process them.

    Is this a good approach ? Which format should I use to avoid any transformation in the data ? I want each extracted frame to ba as "raw" as possible ? Is it possible to directly output a csv containing the aforementionned values ?

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