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Autres articles (54)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • Automated installation script of MediaSPIP

    25 avril 2011, par

    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
    You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
    The documentation of the use of this installation script is available here.
    The code of this (...)

Sur d’autres sites (11405)

  • Add custom metadata tag to video file without altering anything else

    9 juin 2020, par salgarji

    I'm modifying DASH-formatted segments, and my aim is to add extra information to the video segment using metadata tags.

    



    I'm using ffmpeg to record video from my webcam and store segments named like : init-video0-0.mp4 for the initial and video-0-0-N.mp4 for the following, where N is the segment number (beginning at N=1).

    



    For ffmpeg to 'understand' video files, they must have a playable video file format, for that purpose I concat initial segment with Nth segment :

    



    cat init-video-0-mp4 video0-0-N.mp4 > video0-0-N_mod.mp4


    



    Once I have a proper/correct file, I can use ffmpeg to add tags.
I've tried the following command :

    



    ffmpeg -y -i /path/to/file.mp4 -movflags use_metadata_tags -metadata customtag='whatEverYouWantToAdd' /path/to/new/file.mp4


    



    My problem is that the ffmpeg modifies the file changing other information regarding start, duration, progressive and fragmented flags...

    



    I've used this tool : https://download.tsi.telecom-paristech.fr/gpac/mp4box.js/filereader.html, to analyze my files in a more intuitive way :

    



    enter image description here

    



    Do you have any clue on how to add tags without altering DASH segments in any other way ? Even if it requires using another tool different from ffmpeg.

    



    Thank you in advance !

    


  • One liner to create HLS stream

    29 avril 2015, par hendry

    IIUC with HLS or DASH, I can create a manifest and serve the segments straight from my httpd, e.g. python -m http.server.

    I have a UVC video feed coming in on /dev/video1 and I’m battling to create a simple m3u8 in either gstreamer or ffmpeg.

    I got as far as :

    gst-launch-1.0 -e v4l2src device=/dev/video1 ! videoconvert ! x264enc ! mpegtsmux ! hlssink max-files=5

    Any ideas ?

  • libav/ffmpeg : where is data buffer storage ?

    1er juillet 2020, par nguyenthachung

    I'm using libav/ffmpeg to play some DASH livestream.

    


    My case : player is playing normally -> pause for 3 4 minutes -> play again -> Player continue to play without interrupted, not jump to realtime.

    


    Is libav/ffmpeg cached buffer or stored to somewhere ?

    


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