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  • Les formats acceptés

    28 January 2010, by

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

  • Ajouter notes et légendes aux images

    7 February 2011, by

    Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
    Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
    Modification lors de l’ajout d’un média
    Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)

  • Websites made ​​with MediaSPIP

    2 May 2011, by

    This page lists some websites based on MediaSPIP.

On other websites (8892)

  • Improve ffmpeg CPU usage by compromising quality

    29 September 2016, by Hardik Juneja

    I am using FFMpeg for screen capturing.
    I am looking for a screen capturing tool that will run on 1000 of VMs (windows and mac).The VMs have limited CPU (1 core) and 2GB ram and No GPU.

    Currently I invoke ffmpeg with

    ffmpeg  -y -framerate 8 -f dshow -f gdigrab -i "desktop"  -c:v libx264  -crf 0 -preset ultrafast -threads 0 temp.mkv

    I am using gdigrab to capture screen? Is there any better options that might reduce cpu usage? or changing the encoder or format?

    I am aiming for 4-5% reduction in CPU usage.

    Thanks in advance

  • Anomalie #3018 (Résolu): Gestion des plugins inutilisable avec PostgreSQL

    28 June 2013, by Clo Castello

    Installation toute propre SPIP 3.0.10 (20600) avec PostGreSQL 8.4.
    Page : ecrire/?exec=admin_plugin
    Erreur SQL rencontrée : 

    Erreur SQL 1000
errcode: 1000 : invalid input syntax for integer: "" at character 191
SELECT pa.id_paquet, pl.prefixe, pa.version, pa.etatnum, pa.obsolete FROM spip_paquets AS pa, spip_plugins AS pl WHERE pa.id_plugin = pl.id_plugin AND id_depot=’0’ AND ((pl.id_plugin IN (’’))) GROUP BY pa.id_paquet,pl.prefixe,pa.version,pa.etatnum,pa.obsolete


    Effectivement spip_paquets (id_plugin) est un bigint

    Affichage de la page : 

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  • ffmpeg - How to increase performance?

    7 May 2017, by Thanh Dao

    I’m trying to speed up and add background to mp4 videos. It taken a lots of time.

    ffmpeg -i input.mp4 -filter_complex "[0:v]setpts=0.91*PTS[i]; [0:a]atempo=1.1000[p]" -map "[i]" -map "[p]" output-1.mp4 2>&1

    Above command take about 30 minutes to do. The size of input file about 30-40MB, is not too large.
    And next, I run below command to add background to video, take about 30 mins (Background’s resolution is 1280x720)

    ffmpeg -i output-1.mp4 -i background.png -filter_complex "overlay=0:0" output.mp4 2>&1

    It make my system very slow, and performance is very bad.
    What can I do to improve?

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