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  • 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 (...)

  • Automated installation script of MediaSPIP

    25 avril 2011, par

    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
    You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
    The documentation of the use of this installation script is available here.
    The code of this (...)

  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

Sur d’autres sites (11448)

  • How can i burn in the current video playback percentage on to a video stream using FFMpeg

    25 mai, par David Clews

    I've taken alook at the drawtext filter in ffmpeg and it offers the ability to burn in the current local time directly on to the video stream. I would like this sort of behaviour but for a integer percentage value and the percentage symbol % after the actual value. I don't know if this is possible using FFMpeg on the command line. The formula should be something like.

    


    ceil((t/duration)*100)

    


  • Blending Videos in FFmpeg : Excluding Transparent Areas from the Blend [closed]

    12 novembre 2024, par li lu

    I have two videos : one background video and one foreground video (with doves flying, containing an alpha channel). I want to blend these two videos so that only the dove parts participate in the blending, while the transparent parts do not. When I use the ffmpeg blend filter, the overall color of the output video changes, as if the entire video is being blended.

    


  • avfilter/vf_framerate : add SIMD functions for frame blending

    8 janvier 2018, par Marton Balint
    avfilter/vf_framerate : add SIMD functions for frame blending

    Blend function speedups on x86_64 Core i5 4460 :
    

    ffmpeg -f lavfi -i allyuv -vf framerate=60:threads=1 -f null none
    

    C :     447548411 decicycles in Blend,    2048 runs,      0 skips
    
SSSE3 : 130020087 decicycles in Blend,    2048 runs,      0 skips
    
AVX2 :  128508221 decicycles in Blend,    2048 runs,      0 skips
    

    ffmpeg -f lavfi -i allyuv -vf format=yuv420p12,framerate=60:threads=1 -f null none
    

    C :     228932745 decicycles in Blend,    2048 runs,      0 skips
    
SSE4 :  123357781 decicycles in Blend,    2048 runs,      0 skips
    
AVX2 :  121215353 decicycles in Blend,    2048 runs,      0 skips
    

    Signed-off-by : Marton Balint <cus@passwd.hu>
    • [DH] libavfilter/framerate.h
    • [DH] libavfilter/vf_framerate.c
    • [DH] libavfilter/x86/Makefile
    • [DH] libavfilter/x86/vf_framerate.asm
    • [DH] libavfilter/x86/vf_framerate_init.c

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