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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 (9874)

  • hls : Report the current media sequence

    29 avril 2014, par Luca Barbato
    hls : Report the current media sequence

    Useful for debugging mostly.
    • [DH] libavformat/hlsenc.c

  • Adaptive bit rate streaming of mp4 of different gop size using media source api

    25 décembre 2018, par wahab khurram

    I want the adaptive bitrate streaming of the mp4 video of different gop keyframe size.

    I know there are couple of options for multi bitrate streaming i.e hls, dash etc

    But I already uploaded the videos on the server each video have the 360p, 480p and 720p mp4 file and each video are having different keyframe intervals.

    So the real challenge is to make the own multi bitrate mp4 media player using the media source api

    I have brain storming all aspect.

    We can only cut the h264 at keyframe

    So my real challenge is to know the video each keyframe, the keyframe chunk duration, the offset duration and the offset byte position in the mp4 file.

    So my question is how I can get these following using ffmpeg, ffprobe or any other software.

    1- Keyframe chunk duration

    2- Offset video duration

    3- Offset byte position in video.

    The following ffprobe command give the detailed info of the each keyframe, maybe this will help

    ffprobe -i "1080p.mp4" -select_streams v -skip_frame nokey -show_frames

    Thanks !

  • Concatenate dynamic media files on the fly using ffmpeg ?

    24 février 2019, par David

    I have several ts files which I need to concatenate while some of the media files are still being converted, below is the scenario :

     1. First .ts file ready and stored in named pipe
    
 2. Second .ts file still being processed by ffmpeg and will take some time to finish.
    
 3. Last .ts file ready and stored in named pipe

    What I would like to do now is to concatenate all these 3 files together (no re-encoding), in this case file(2) is still being converted. How can I achieve this ?

    The purpose is to send to a client (HTTP) the output chunks from concatenation without waiting for the whole process to finish.

    Thanks

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