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  • 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" (...)

  • La sauvegarde automatique de canaux SPIP

    1er avril 2010, par

    Dans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
    Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...)

Sur d’autres sites (8611)

  • FFMpeg SDR and HDR side-by-side video encoding

    21 septembre 2023, par Famro Fexl

    I am attempting to create a side-by-side video with FFMpeg using the hstack filter.

    


    The SDR video is formatted as "AVC 8-bit YUV420p BT709 Gamma 2.4" and the HDR video is formatted as "HEVC 10-bit YUV420p10le BT2020 SMPTE2084 (with HDR10 metadata)".

    


    In order for the gamma and color space to match, I tried to convert the SDR video to an HDR format using filtering.

    


    Basically, I attempted to process the Rec.709 gamma 2.4 SDR content to Rec.2020 SMPTE2084 content so it could be combined and displayed in the same video. I'm not sure if the input pixel format mattered, at it appeared to be automatically transformed into the output pixel format. From everything I know, this should be theoretically possible.

    


    Here is my FFMpeg command for converting the SDR video into HDR :
ffmpeg -i input.mkv -filter_complex "colormatrix=bt709:bt2020" -color_primaries bt2020 -color_trc smpte2084 -c:v libx265 out.mkv

    


    The colorspace filter always returned the error [Parsed Colorspace_0 @ addr] Unsupported input primaries 2 (unknown), when using the filter_complex `colorspace=all=bt2020", so I was never able to use it.

    


    The HDR result had over-saturated reds in the color space and it was too dim in the gamma. I tried every gamma option available, but none of them matched the original SDR content.`

    


  • Record All Capture Screens on MacOS Side By Side using ffmpeg or any other command line tool

    8 février 2020, par Prads
    ffmpeg -f avfoundation -list_devices true -i ""
    

    
AVFoundation video devices:
    
[0] FaceTime HD Camera (Built-in)
    
[1] Capture screen 0
    
[2] Capture screen 1
    
AVFoundation audio devices:
    
[0] External Microphone
    
[1] MacBook Pro Microphone

    I want to Capture all screens in my case "Capture screen 0", "Capture screen 1", "External Microphone" and "MacBook Pro Microphone"

  • Add a compat stdatomic.h implementation based on GCC atomics

    17 juillet 2016, par Anton Khirnov
    Add a compat stdatomic.h implementation based on GCC atomics

    Adapted from the code by Rémi Denis-Courmont from VLC
    • [DBH] compat/atomics/gcc/stdatomic.h
    • [DBH] configure

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