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  • Menus personnalisés

    14 novembre 2010, par

    MediaSPIP utilise le plugin Menus pour gérer plusieurs menus configurables pour la navigation.
    Cela permet de laisser aux administrateurs de canaux la possibilité de configurer finement ces menus.
    Menus créés à l’initialisation du site
    Par défaut trois menus sont créés automatiquement à l’initialisation du site : Le menu principal ; Identifiant : barrenav ; Ce menu s’insère en général en haut de la page après le bloc d’entête, son identifiant le rend compatible avec les squelettes basés sur Zpip ; (...)

  • Configuration spécifique d’Apache

    4 février 2011, par

    Modules spécifiques
    Pour la configuration d’Apache, il est conseillé d’activer certains modules non spécifiques à MediaSPIP, mais permettant d’améliorer les performances : mod_deflate et mod_headers pour compresser automatiquement via Apache les pages. Cf ce tutoriel ; mode_expires pour gérer correctement l’expiration des hits. Cf ce tutoriel ;
    Il est également conseillé d’ajouter la prise en charge par apache du mime-type pour les fichiers WebM comme indiqué dans ce tutoriel.
    Création d’un (...)

  • Mise à disposition des fichiers

    14 avril 2011, par

    Par défaut, lors de son initialisation, MediaSPIP ne permet pas aux visiteurs de télécharger les fichiers qu’ils soient originaux ou le résultat de leur transformation ou encodage. Il permet uniquement de les visualiser.
    Cependant, il est possible et facile d’autoriser les visiteurs à avoir accès à ces documents et ce sous différentes formes.
    Tout cela se passe dans la page de configuration du squelette. Il vous faut aller dans l’espace d’administration du canal, et choisir dans la navigation (...)

Sur d’autres sites (5778)

  • C script and ffmpeg can't find files

    14 décembre 2019, par Edoardo Colella

    I tryed to use ffmpeg concat with popen command in c but i get "No such file o directory". If i use linux terminal with the same command it works.

    ffmpeg -i "concat: audio/1.mp3|audio/2.mp3" -acodec copy output.mp3

    What could be the problem ?

  • 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"

  • 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"

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