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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 (...)

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

  • 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

Sur d’autres sites (12749)

  • change max Buffer Length in MPEG-dash format

    17 novembre 2020, par ADL

    I'm trying to change the max buffer length on my video streaming in clappr video player.
I know that in HLS format the way to do it is like this :

    


    player = new Clappr.Player({
      playback: {
        hlsjsConfig: {
         maxMaxBufferLength: 30
      }}})


    


    And it's realy working for HLS videos,
I'm looking for equivalent way to do it with MPEG-dash foramt

    


  • MP4 to DASH (bash script)

    13 mars 2017, par francesco.galgani

    I have a web site in which users can upload video files. I want to stream all of them using DASH to obtain an adaptive bitrate streaming. So I wrote a bash script (to run by cron) that converts all mp4 files to DASH, but it doesn’t work properly : what is wrong ?

    For example, using the following script, I obtained :
    https://www.informatica-libera.net/dash_faq/stream.mpd

    It validates, but it doesn’t play. I tested it on :
    http://dash-mse-test.appspot.com/dash-player.html?url=https%3A%2F%2Fwww.informatica-libera.net%2Fdash_faq%2Fstream.mpd&autoplay=on&adapt=auto&flavor=

    Thank you for any help.
    The code :

    #!/bin/bash
    

    
# THIS SCRIPT CONVERTS EVERY MP4 (IN THE CURRENT FOLDER AND SUBFOLDER)
    
# TO A MULTI-BITRATE VIDEO IN MP4-DASH
    
# For each file "videoname.mp4" it creates a folder "dash_videoname" 
    
# containing a dash manifest file "stream.mpd" and subfolders containing 
    
# video segments.
    

    
# mp4dash documentation and download: https://www.bento4.com/developers/dash/
    

    
MYDIR=$(dirname $(readlink -f ${BASH_SOURCE[0]}))
    
SAVEDIR=$(pwd)
    

    
# Check programs
    
if [ -z "$(which ffmpeg)" ]; then
    
    echo "Error: ffmpeg is not installed"
    
    exit 1
    
fi
    

    
if [ -z "$(which mp4dash)" ]; then
    
    echo "Error: mp4dash is not installed"
    
    exit 1
    
fi
    

    
cd "$MYDIR"
    

    
TARGET_FILES=$(find ./ -type f -name "*.mp4")
    
for f in $TARGET_FILES
    
do
    
  f=$(basename "$f") # fullname of the file
    
  f="${f%.*}" # name without extension
    

    
  if [ ! -d "dash_${f}" ]; then
    
    echo "Converting \"$f\" to multi-bitrate video in MPEG-DASH"
    

    
    ffmpeg -y -i "${f}.mp4" -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 1500k -vf "scale=-2:720" -f mp4 -pass 1 -y /dev/null
    
    ffmpeg -y -i "${f}.mp4" -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 1500k -vf "scale=-2:720" -f mp4 -pass 2 "${f}_1500.mp4"
    

    
    ffmpeg -y -i "${f}.mp4" -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 800k -vf "scale=-2:540" -f mp4 -pass 1 -y /dev/null
    
    ffmpeg -y -i "${f}.mp4" -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 800k -vf "scale=-2:540" -f mp4 -pass 2 "${f}_800.mp4"
    

    
    ffmpeg -y -i "${f}.mp4" -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 400k -vf "scale=-2:360" -f mp4 -pass 1 -y /dev/null
    
    ffmpeg -y -i "${f}.mp4" -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 400k -vf "scale=-2:360" -f mp4 -pass 2 "${f}_400.mp4"
    

    
    ffmpeg -y -i "${f}.mp4" -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 200k -vf "scale=-2:180" -f mp4 -pass 1 -y /dev/null
    
    ffmpeg -y -i "${f}.mp4" -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 200k -vf "scale=-2:180" -f mp4 -pass 2 "${f}_200.mp4"
    

    
    rm -f ffmpeg*log*
    

    
    mp4fragment "${f}_1500.mp4" "${f}_1500_fragmented.mp4"
    
    mp4fragment "${f}_800.mp4" "${f}_800_fragmented.mp4"
    
    mp4fragment "${f}_400.mp4" "${f}_400_fragmented.mp4"
    
    mp4fragment "${f}_200.mp4" "${f}_200_fragmented.mp4"
    

    
    rm -f "${f}_1500.mp4" "${f}_800.mp4" "${f}_400.mp4" "${f}_200.mp4"
    

    
    mp4dash -v -o "dash_${f}" "${f}_1500_fragmented.mp4" "${f}_800_fragmented.mp4" "${f}_400_fragmented.mp4" "${f}_200_fragmented.mp4"
    

    
    rm -f "${f}_1500_fragmented.mp4" "${f}_800_fragmented.mp4" "${f}_400_fragmented.mp4" "${f}_200_fragmented.mp4"
    

    
    fi
    

    
done
    

    
cd "$SAVEDIR"

  • MP4 to DASH (bash script)

    18 mars 2019, par Francesco Galgani

    I have a web site in which users can upload video files. I want to stream all of them using DASH to obtain an adaptive bitrate streaming. So I wrote a bash script (to run by cron) that converts all mp4 files to DASH, but it doesn’t work properly : what is wrong ?

    For example, using the following script, I obtained :
    https://www.informatica-libera.net/dash_faq/stream.mpd

    It validates, but it doesn’t play. I tested it on :
    http://dash-mse-test.appspot.com/dash-player.html?url=https%3A%2F%2Fwww.informatica-libera.net%2Fdash_faq%2Fstream.mpd&autoplay=on&adapt=auto&flavor=

    Thank you for any help.
    The code :

    #!/bin/bash
    

    
# THIS SCRIPT CONVERTS EVERY MP4 (IN THE CURRENT FOLDER AND SUBFOLDER)
    
# TO A MULTI-BITRATE VIDEO IN MP4-DASH
    
# For each file "videoname.mp4" it creates a folder "dash_videoname" 
    
# containing a dash manifest file "stream.mpd" and subfolders containing 
    
# video segments.
    

    
# mp4dash documentation and download: https://www.bento4.com/developers/dash/
    

    
MYDIR=$(dirname $(readlink -f ${BASH_SOURCE[0]}))
    
SAVEDIR=$(pwd)
    

    
# Check programs
    
if [ -z "$(which ffmpeg)" ]; then
    
    echo "Error: ffmpeg is not installed"
    
    exit 1
    
fi
    

    
if [ -z "$(which mp4dash)" ]; then
    
    echo "Error: mp4dash is not installed"
    
    exit 1
    
fi
    

    
cd "$MYDIR"
    

    
TARGET_FILES=$(find ./ -type f -name "*.mp4")
    
for f in $TARGET_FILES
    
do
    
  f=$(basename "$f") # fullname of the file
    
  f="${f%.*}" # name without extension
    

    
  if [ ! -d "dash_${f}" ]; then
    
    echo "Converting \"$f\" to multi-bitrate video in MPEG-DASH"
    

    
    ffmpeg -y -i "${f}.mp4" -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 1500k -vf "scale=-2:720" -f mp4 -pass 1 -y /dev/null
    
    ffmpeg -y -i "${f}.mp4" -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 1500k -vf "scale=-2:720" -f mp4 -pass 2 "${f}_1500.mp4"
    

    
    ffmpeg -y -i "${f}.mp4" -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 800k -vf "scale=-2:540" -f mp4 -pass 1 -y /dev/null
    
    ffmpeg -y -i "${f}.mp4" -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 800k -vf "scale=-2:540" -f mp4 -pass 2 "${f}_800.mp4"
    

    
    ffmpeg -y -i "${f}.mp4" -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 400k -vf "scale=-2:360" -f mp4 -pass 1 -y /dev/null
    
    ffmpeg -y -i "${f}.mp4" -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 400k -vf "scale=-2:360" -f mp4 -pass 2 "${f}_400.mp4"
    

    
    ffmpeg -y -i "${f}.mp4" -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 200k -vf "scale=-2:180" -f mp4 -pass 1 -y /dev/null
    
    ffmpeg -y -i "${f}.mp4" -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 200k -vf "scale=-2:180" -f mp4 -pass 2 "${f}_200.mp4"
    

    
    rm -f ffmpeg*log*
    

    
    mp4fragment "${f}_1500.mp4" "${f}_1500_fragmented.mp4"
    
    mp4fragment "${f}_800.mp4" "${f}_800_fragmented.mp4"
    
    mp4fragment "${f}_400.mp4" "${f}_400_fragmented.mp4"
    
    mp4fragment "${f}_200.mp4" "${f}_200_fragmented.mp4"
    

    
    rm -f "${f}_1500.mp4" "${f}_800.mp4" "${f}_400.mp4" "${f}_200.mp4"
    

    
    mp4dash -v -o "dash_${f}" "${f}_1500_fragmented.mp4" "${f}_800_fragmented.mp4" "${f}_400_fragmented.mp4" "${f}_200_fragmented.mp4"
    

    
    rm -f "${f}_1500_fragmented.mp4" "${f}_800_fragmented.mp4" "${f}_400_fragmented.mp4" "${f}_200_fragmented.mp4"
    

    
    fi
    

    
done
    

    
cd "$SAVEDIR"

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