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  • Les vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
    Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...)

  • Les tâches Cron régulières de la ferme

    1er décembre 2010, par

    La gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
    Le super Cron (gestion_mutu_super_cron)
    Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...)

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

Sur d’autres sites (3500)

  • avformat : add demuxer for argonaut games' ASF format

    26 janvier 2020, par Zane van Iperen
    avformat : add demuxer for argonaut games' ASF format

    Adds support for the custom ASF container used by some Argonaut Games'
    
games, such as 'Croc ! Legend of the Gobbos', and 'Croc 2'.
    

    Can also handle the sample files in :
    
https://samples.ffmpeg.org/game-formats/brender/part2.zip
    

    Signed-off-by : Zane van Iperen <zane@zanevaniperen.com>
    • [DH] Changelog
    • [DH] libavformat/Makefile
    • [DH] libavformat/allformats.c
    • [DH] libavformat/argo_asf.c
    • [DH] libavformat/version.h

  • Why after rendering with ffmpeg, file size did not decrease ?

    15 avril 2021, par ptrra

    PROBLEM : After rendering a certain video with ffmpeg file size increased from 4GB to 6GB.
    &#xA;ORIGINAL VIDEO : EE1.mkv
    &#xA;FFMPEG COMMAND : ffmpeg -i EE1.mkv -c:a copy -c:v libx264 -crf 23 -preset medium -profile:v high out.mp4
    &#xA;QUESTIONS : Why did the file size increase ? What am I doing wrong ?

    &#xA;

     !DETAILS !
    &#xA;After a few years I made about 30 gaming videos (130GB) and with the current covid-19 situation I started recording my online classes (about 40 videos or 150GB). Now because I'm lacking space on my 1TB external HDD I started getting into ffmpeg. Before I was only using obs-studio and not good parameters for recording.

    &#xA;

    I was using CBR mode for recording, either 5000KB or 15000KB bit rate with varying x264 presets and profiles because I was also experimenting with them. Usually superfast preset with high profile. So I wanted to convert all those videos with ffmpeg using CRF 23, medium preset and high profile. A note that when I'm recording with obs-studio it's set to record in matroska format (.mkv).

    &#xA;

    When I was rendering my online classes videos with these settings I managed to achieve 10x better compression with the same quality. And when rendering my gaming videos I managed to achieve up to 3x better compression with the same quality. However there is this one video that when rendered with the same parameters the file size increases.

    &#xA;

    The EE1.mkv should be recorded with CBR 15000KB bit rate, with superfast preset and high profile. Also the game that is recorded in this video is Empire Earth which needs around 8000KB for it to look good. Everything more than 8000KB is not needed.

    &#xA;

    Thank you all for your help.

    &#xA;

  • Why after rendering with ffmpeg, file size did not decrease ?

    15 avril 2021, par ptrra

    PROBLEM : After rendering a certain video with ffmpeg file size increased from 4GB to 6GB.
    &#xA;ORIGINAL VIDEO : EE1.mkv
    &#xA;FFMPEG COMMAND : ffmpeg -i EE1.mkv -c:a copy -c:v libx264 -crf 23 -preset medium -profile:v high out.mp4
    &#xA;QUESTIONS : Why did the file size increase ? What am I doing wrong ?

    &#xA;

     !DETAILS !
    &#xA;After a few years I made about 30 gaming videos (130GB) and with the current covid-19 situation I started recording my online classes (about 40 videos or 150GB). Now because I'm lacking space on my 1TB external HDD I started getting into ffmpeg. Before I was only using obs-studio and not good parameters for recording.

    &#xA;

    I was using CBR mode for recording, either 5000KB or 15000KB bit rate with varying x264 presets and profiles because I was also experimenting with them. Usually superfast preset with high profile. So I wanted to convert all those videos with ffmpeg using CRF 23, medium preset and high profile. A note that when I'm recording with obs-studio it's set to record in matroska format (.mkv).

    &#xA;

    When I was rendering my online classes videos with these settings I managed to achieve 10x better compression with the same quality. And when rendering my gaming videos I managed to achieve up to 3x better compression with the same quality. However there is this one video that when rendered with the same parameters the file size increases.

    &#xA;

    The EE1.mkv should be recorded with CBR 15000KB bit rate, with superfast preset and high profile. Also the game that is recorded in this video is Empire Earth which needs around 8000KB for it to look good. Everything more than 8000KB is not needed.

    &#xA;

    Thank you all for your help.

    &#xA;

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