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Autres articles (81)

  • 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 (14603)

  • imgutils : add function to clear an image to black

    22 juillet 2017, par wm4
    imgutils : add function to clear an image to black
    

    Black isn’t always just memset(ptr, 0, size). Limited YUV in particular
    requires relatively non-obvious values, and filling a frame with
    repeating 0 bytes is disallowed in some contexts. With component sizes
    larger than 8 or packed YUV, this can become relatively complicated. So
    having a generic function for this seems helpful.

    In order to handle the complex cases in a generic way without destroying
    performance, this code attempts to compute a black pixel, and then uses
    that value to clear the image data quickly by using a function like
    memset.

    Common cases like yuv410p10 or rgba can’t be handled with a simple
    memset, so there is some code to fill memory with 2/4/8 byte patterns.
    For the remaining cases, a generic slow fallback is used.

    Signed-off-by : Anton Khirnov <anton@khirnov.net>

    • [DBH] doc/APIchanges
    • [DBH] libavutil/imgutils.c
    • [DBH] libavutil/imgutils.h
    • [DBH] libavutil/version.h
  • FFMPEG rotate command show black color on edges

    11 décembre 2022, par Najih Zidan

    i am using command ffmpeg -i NoAudio.mp4 -i cat-face-emoji.png -filter_complex "[1]rotate=a=140[ov1];[0][ov1]overlay=480:270" -c:a copy output.mp4 -y to rotate image 140 degree but black background show on edges.

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    Here output video : https://app.dadan.io/video/share/nmmU8uiyCl2YVYm4

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    I am expecting to rotate image without any additional edges as the image in png.

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  • Resize image by adding extra black pixels at borders

    25 juin 2020, par Sudheer Kumar

    I would like to resize an image(lower resolution to higher resolution) by adding black pixels at the borders. I have raw image data available in YUV420/RGB format. I want to add back pixels to this raw image data and change its resolution to desired state. Example before to after. I have all my code in CPP, and i am also using ffmpeg libraries to scale/convert data format.

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