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Médias (5)

Mot : - Tags -/open film making

Autres articles (70)

  • MediaSPIP Core : La Configuration

    9 novembre 2010, par

    MediaSPIP Core fournit par défaut trois pages différentes de configuration (ces pages utilisent le plugin de configuration CFG pour fonctionner) : une page spécifique à la configuration générale du squelettes ; une page spécifique à la configuration de la page d’accueil du site ; une page spécifique à la configuration des secteurs ;
    Il fournit également une page supplémentaire qui n’apparait que lorsque certains plugins sont activés permettant de contrôler l’affichage et les fonctionnalités spécifiques (...)

  • 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" (...)

  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

Sur d’autres sites (10248)

  • Revision 040eeed9d0 : Turning model based reverse update on for coefs Turns model based reverse updat

    26 avril 2013, par Deb Mukherjee

    Changed Paths :
     Modify /vp9/common/vp9_entropy.c


     Modify /vp9/common/vp9_entropy.h



    Turning model based reverse update on for coefs

    Turns model based reverse updates on for coefficients in an
    effort to reduce the memory requirement for counters.

    With this patch the counters needed will be reduced by about
    75% since only 3 counts are needed instead of 12.

    The impact in performance is :
    derf300 : -0.252%
    stdhd250 : -0.046%

    However retraining should alleviate some of the drop in
    performance.

    Change-Id : I6f2b3e13f6d5520aa3400b0b228fb5e8b4a43caa

  • VFR input + h264_nvenc - output bitrate is based on initial frame rate when I want it to be time based [closed]

    4 août, par hedgehog90

    I have an HLS stream produced from a live VFR source in ffmpeg.
The source consists of blocks of varying frame rate. The first 30 minutes might be 24fps, the next 30 minutes @ 60fps.
Although it is not standard for HLS to be VFR, it appears to playback perfectly well on various platforms I've tested.

    


    When I use the libx264 encoder with -crf + -maxrate parameters, I can get my desired bitrate per stream despite potentially wild frame rate fluctuations.

    


    But when I use the h264_nvenc encoder with -cq + -maxrate parameters (and practically every configuration I could think of), the bitrate is all dependant on the initial frame rate of the input stream.
For example, segment duration is set to 5 seconds... the first 5 seconds of the input are 30fps, and the next 5 seconds are 60fps, the resulting output will produce 1 segment at the desired bitrate, the next at double the desired bitrate.

    


    I have tried every configuration to try and trick the encoder into working differently, but it appears this might be a built-in limitation.

    


    I've searched for answers, I've asked the chatbots, I can't find a definitive solution, besides converting the input stream to a constant frame rate (which is not an option).

    


  • Zoom and Moving based on audio information in FFMPEG

    19 décembre 2019, par Mattstir

    I recently wondered if it is possible to zoom or move things in FFMPEG based on an audio source.

    I already played around with complex filters as they allow some audio visualization but didn’t really manage to move/zoom things based on sound. See good examples of complex filters used for audio visualization at : https://hhsprings.bitbucket.io/docs/programming/examples/ffmpeg/audio_visualization/index.html

    My current situation is that i have multiple inputs which one of should react on sound/maybe even on special frequency’s.

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