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  • Gestion des droits de création et d’édition des objets

    8 février 2011, par

    Par défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;

  • 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 (...)

  • Les formats acceptés

    28 janvier 2010, par

    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 (...)

Sur d’autres sites (9450)

  • How to add text with zoom out effection on video in FFMpeg ?

    29 septembre 2018, par Alexia1990

    I am developing android app with ffmpeg.
    I`d like to add text on video and set the zoom out animation on it.
    I can marquee the text from bottom to top and from left to right.
    If someone has experiences on zoom out animation of text with FFMpeg, please give me the tip.
    Here is my code.

    ffmpeg -i input.mp4 -vf "drawtext=fontfile=/path/to/font.ttf : text =’Test Line’:fontcolor=red:fontsize=65:x=100 : y=if(lt(t\,8)\,30*t\,240)" output.mp4

  • Anomalie #4704 (En cours) : Par sinum tri le nombre par ordre alpha

    26 mars 2021, par b b

    Et c’est documenté ici https://www.spip.net/fr_article5531.html#Ordonner-par-numero

    par sinum titre, num titre, titre mettra les éléments sans numéro en fin de liste, contrairement à par num titre, titre .

    Mais ça mériterait peut-être de le mentionner ici aussi https://www.spip.net/fr_article2035.html#par-num---- ?

  • ffmpeg : playing media files does not release processor after media ends ?

    2 septembre 2017, par Blake Senftner

    I have a commercial C++ application which uses FFMPEG’s libav series of dlls to play media in a Windows application. I basically started with the dranger tutorial about two years ago, and created a library that can playback USB cameras, IP camera / online streams, and media files on disk. (http://dranger.com/ffmpeg/)

    My question is directed at anyone who has created their own similar library :

    I recently noticed after playing a video file from disk (as opposed to a live stream from USB or IP source), my 8 core i7 workstation will show 28-29% CPU usage after a media file has ended. My application can play an unlimited number of videos, and each "virtual video panel" (not a window, just a "virtual tab" created using wxWidgets that holds an OpenGL context that I use to glDrawPixels() to the visible app panel) will play any of the three media types fine (USB, IP stream or media file) and when I stop a USB or IP stream my application’s CPU usage drops to zero. But when I "stop" a media file playing or the media file ends on its own the CPU usage does not drop - until the application quits.

    Three media files playing will take my application to 80-83% CPU, and it never drops. UNLESS I reuse that same "virtual video panel" to play a USB or IP stream. If I stop those streams, CPU usage is released.

    MP4 (h264) video files exhibit this "holding a processor" problem.

    MP4 (mpeg2) files do not.

    MP4 (h265) files do not.

    MPG (mpeg1) files do not.

    ASF (MS MPEG-4 Video v3) files do not.

    MKV (vp8) files do not.

    MOV files using h265 do not, as well as MOV (h264) files do not.

    FLV (sorensen) files do not, as well as FLV (h264) files do not.

    So it is not just the h264 codec.

    Anyone know what is going on, and how I tell libav to release CPU usage when a media file is no longer playing ?

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