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Médias (2)

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Autres articles (92)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • 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 (...)

  • Emballe médias : à quoi cela sert ?

    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
    Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;

Sur d’autres sites (13784)

  • lavu/frame : Add Dolby Vision metadata side data type

    3 janvier 2022, par Niklas Haas
    lavu/frame : Add Dolby Vision metadata side data type

    In order to be able to extend this struct later (as the Dolby Vision RPU
    
evolves), all of the 'container' structs are considered extensible, and
    
the individual constituent fields must instead be accessed via offsets.
    
The precedent for this style of access is set in
    
<libavutil/detection_bbox.h>
    

    Signed-off-by : Niklas Haas <git@haasn.dev>
    
Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
    • [DH] doc/APIchanges
    • [DH] libavutil/dovi_meta.c
    • [DH] libavutil/dovi_meta.h
    • [DH] libavutil/frame.c
    • [DH] libavutil/frame.h
    • [DH] libavutil/version.h

  • Produce waveform video from audio using FFMPEG

    27 avril 2017, par RhythmicDevil

    I am trying to create a waveform video from audio. My goal is to produce a video that looks something like this

    enter image description here

    For my test I have an mp3 that plays a short clipped sound. There are 4 bars of 1/4 notes and 4 bars of 1/8 notes played at 120bpm. I am having some trouble coming up with the right combination of preprocessing and filtering to produce a video that looks like the image. The colors dont have to be exact, I am more concerned with the shape of the beats. I tried a couple of different approaches using showwaves and showspectrum. I cant quite wrap my head around why when using showwaves the beats go past so quickly, but using showspectrum produces a video where I can see each individual beat.

    ShowWaves

    ffmpeg -i beat_test.mp3 -filter_complex "[0:a]showwaves=s=1280x100:mode=cline:rate=25:scale=sqrt,format=yuv420p[v]" -map "[v]" -map 0:a output_wav.mp4

    This link will download the output of that command.

    ShowSpectrum

    ffmpeg -i beat_test.mp3 -filter_complex "[0:a]showspectrum=s=1280x100:mode=combined:color=intensity:saturation=5:slide=1:scale=cbrt,format=yuv420p[v]" -map "[v]" -an -map 0:a output_spec.mp4

    This link will download the output of that command.

    I posted the simple examples because I didn’t want to confuse the issue by adding all the variations I have tried.

    In practice I suppose I can get away with the output from showspectrum but I’d like to understand where/how I am thinking about this incorrectly. Thanks for any advice.

    Here is a link to the source audio file.

  • Revision 28933 : on bouge

    31 mai 2009, par ben.spip@… — Log

    on bouge

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