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  • 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 (...)

  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

  • 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 (...)

Sur d’autres sites (3873)

  • Reducing frames with ffmpeg leads to massive video size reaction - what´s wrong ?

    9 juin 2023, par Katharina

    I am working on a project in which I need to

    


    -transform many videos from .h264 format to .mp4

    


    -cut them after 1 hour duration

    


    -reduce the framerate from 60 fps to 30 fps

    


    Up to now, I came up with following :

    


    Convert :

    


    for %a in ("*.h264") do ffmpeg -framerate 60 -fflags +genpts -i "%a" -vcodec copy -acodec copy "%~na_Conv.mp4


    


    Cut :

    


    for %a in ("*.mp4") do ffmpeg -ss 00:00:00 -i "%a" -to 01:00:00  -vcodec copy -acodec copy "%~na_cut.mp4


    


    Reduce framerate :

    


    for %a in ("*.mp4") do ffmpeg -i "%a" -filter:v fps=fps=30 "%~na_30fps.mp4


    


    It finally seems to work fine, but I am worried, because the original file has 2.6 GB, the converted and cut video file has 2.4 GB (which I find reasonable), but the video file with 30 fps has only 340 MB. It does not seem corect, that the files got so small. However, I used fprobe to determine the framerates and it shows that the fps should be as specified. Still, I find it puzzling that the video is now so small when only half the frames were dropped. Unfortunately, looking at the videos does not give hints if too many frames were dropped.

    


    I am grateful for any advice how to find the error or how to evaluate my result properly. Thank you for your help !

    


  • fix "PHP Notice(8) : A non well formed numeric value encountered" with…

    11 juin 2016, par remicollet
    fix "PHP Notice(8) : A non well formed numeric value encountered" with PHP 7.1

  • Anomalie #4452 (Fermé) : Notice : A non well formed numeric value encountered à partir de php 7.1

    25 juin 2020, par Anonyme

    Appliqué par commit spip_loader|r125320.

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