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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • 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 (...)

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  • 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.
    
ORIGINAL VIDEO : EE1.mkv
    
FFMPEG COMMAND : ffmpeg -i EE1.mkv -c:a copy -c:v libx264 -crf 23 -preset medium -profile:v high out.mp4
    
QUESTIONS : Why did the file size increase ? What am I doing wrong ?

    


     !DETAILS !
    
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.

    


    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).

    


    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.

    


    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.

    


    Thank you all for your help.

    


  • Using ffmpeg to convert an SEC file

    29 septembre 2023, par anna

    I need to convert an SEC file into any video format that I can share and/or upload to Youtube. MP4, etc.

    



    I'm a complete newbie at all things terminal. I've tried :

    



    ffmpeg -i video.sec video.mp4

    



    ffmpeg -i video.sec -bsf:v h264_mp4toannexb -c:v copy video.avi

    



    ffmpeg -i video.sec -b 256k -vcodec h264 -acodec aac video.mp4

    



    I don't understand what any of these mean, they're just examples I found online. However, whatever I try returns this error :

    



    Invalid data found when processing input

    



    Any thoughts ? Thanks !

    


  • How to remove PES header from video stream

    24 septembre 2019, par AnkurTank

    I have captured video stream from the multimedia device which has H264 format.

    I want to remove PES header (i.e. first 14 bytes of the frame). Is it possible to do it by ffmpeg or any other tool. I tried searching online but didn’t find it. I thought of scripting it out and remove it but don’t know frame format completely. I know, I have to learn all format stuffs and I am going through it but I need this immediately. Any suggestion/pointers ?

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