Recherche avancée

Médias (1)

Mot : - Tags -/stallman

Autres articles (30)

  • 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 (...)

  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

Sur d’autres sites (3272)

  • Compile ffmpeg for WinRT with libvpx ?

    7 janvier 2018, par Sean O'Neil

    Following this guide :
    https://trac.ffmpeg.org/wiki/CompilationGuide/WinRT

    Can anyone tell me if it’s possible to build and include libvpx into this ?

  • Revision 106740 : Cf r106739 : ouvelle possibilité du plugin de mutualisation facile (voir ...

    11 octobre 2017, par real3t@… — Log

    Cf r106739 : ouvelle possibilité du plugin de mutualisation facile (voir commit suivant) : afficher la valeur d’une meta. Soit :
    - nommeta
    - nomcasier/nommeta (beaucoup utilisé avec les CFG)
    Déclaration dans le mes_options.php
    Exemple :
    GLOBALSmutualisation_afficher_config ? = (isset($GLOBALSmutualisation_afficher_config ?) ?$GLOBALSmutualisation_afficher_config ?.’,’ :).’soyezcreateurs/mode_affichage,slogan_site’ ;

  • ffmpeg save 8bit 'raw' pixel data from 10bit source

    15 décembre 2023, par memeko

    So, I'm extracting I-Frames from videos with the intention of converting them to perceptual hashes to be used for analysis

    


    I am specifically working with the raw luma channel data in a Y'CBCR colour-space found in YUV420p chroma-subsampled video codecs like h.264 / h.265, which works all well and good, except when the input source uses a 10bit colour-depth.

    


    I was wondering if there is a way to make ffmpeg convert and output only the extracted Y' component as raw 8bit pixel data even if the source was originally 10bit, like, is there a raw 8bit output encoder or some kind of filter you can apply ?

    


    That is without having to re-encode the whole video, only potentially doing a conversion on the extracted luma component I-Frame data, if it happens to not already be 8bit. I am also using ffmpeg's scale filter to compress the raw Y' channel data before output, so preferably I would want the 10bit to 8bit conversion to be the last step in the pipeline.

    


    I've already tried specifying an 8bit pixel format with -pix_fmt yuv420p, this sort of works, but also causes the output to ignore -filter_complex "extractplanes=y" and also output UV planes, which is not what I want.

    


Navigation