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  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

  • 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" (...)

Sur d’autres sites (11723)

  • avformat/apngdec : Fix size/overflow checks

    12 janvier 2020, par Andreas Rheinhardt
    avformat/apngdec : Fix size/overflow checks

    apng data consists of parts containing a small header (including a
    
four-byte size field) and a data part ; the size field does not account
    
for everything and is actually twelve bytes short of the actual size. In
    
order to make sure that the size fits into an int, the size field is
    
checked for being > INT_MAX ; yet this does not account for the + 12 and
    
upon conversion to int (which happens when calling append_extradata()),
    
the size parameter can still wrap around. In this case the currently
    
used check would lead to undefined signed integer overflow.
    

    Furthermore, append_extradata() appends the new data to the already
    
existing extradata and therefore needs to make sure that the combined
    
size of new and old data as well as padding fits into an int. The check
    
used for this is "if (old_size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE -
    
new_size)". If new_size is > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE
    
the right side becomes negative if the types are signed (as they are
    
now) ; yet changing this to "if (new_size > INT_MAX -
    
AV_INPUT_BUFFER_PADDING_SIZE - old_size)" is better as this also works
    
for unsigned types (where it is of course presumed that INT_MAX is
    
replaced by the corresponding maximum for the new type).
    

    Both of these issues have been fixed.
    

    Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
    • [DH] libavformat/apngdec.c

  • JavaCV FrameRecorder broken output

    24 juin 2016, par user6510675

    I am trying to record from my webcam 360 frames, however the generated movie file always gets broken.

    Example from my dropbox account : https://www.dropbox.com/s/wc4p21tyuhu7uls/Untitled.avi?dl=0

    The issue starts at minute 0:02.

    I don’t know how to fix this.

    I always receive this message in the console :
    using huffyuv 2.2.0 or newer interlacing flag

  • FFmpeg resize without upscaling

    9 novembre 2016, par Alan

    I am working on a script that searches for all media files in the current directory and subdirectories and then batch encodes them to H.265. I was hoping to put in some max frame sizes to make things that are 1080p to be 720p. That is the straightforward part but I have some that are 480p and I don’t want those to end up as 720p. How can I modify my ffmpeg filters to take that into account ?

    The command :

    ffmpeg -i input -c:v hevc_nvenc -preset medium -crf 28 -c:a copy output.mp4

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