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Autres articles (72)

  • 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

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • Librairies et logiciels spécifiques aux médias

    10 décembre 2010, par

    Pour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
    Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel ; FFMpeg avec le maximum de décodeurs et (...)

Sur d’autres sites (7775)

  • Executing ffmpeg commands from a PHP script

    30 janvier 2013, par Derrick Tucker

    My problem is pretty simple : I can run ffmpeg commands perfectly fine on my server from the command line, but some of these commands experience trouble when I try to execute them from a PHP script.

    For example, the following works in the command line :

    ffmpeg -i cat.mpeg cat.avi

    When in my PHP script, it also works as :

    exec("/usr/local/bin/ffmpeg -i cat.mpeg cat.avi", $output);

    This, as I said, works fine. However, this line works from the command line, but not in a PHP script :

    ffmpeg -i cat.mpeg -vf scale=480:360 cat2.mpeg

    Trying to put that into an exec() produces nothing. I've tried with/without quotes around the dimensions, different formats, etc. From the dozens of different commands I have tried, it seems that any will work from PHP as long as they don't contain the -vf flag. Clearly it works on the server, as executing from the command line proceeds with no issue ; is there something silly I am missing here ?

  • Check if a rtmp-stream is running and start ffmpeg with PHP / Shell-Script / Ruby

    24 mars 2014, par funkdoobiest

    I'm using ffmpeg to transcode a rtmp-stream and re-stream it with ffmpeg.

    I have 2 problems :

    • how can I check if the remote rtmp-stream is running and then start ffmpeg
    • sometimes ffmpeg brake up transcoding and it must be restartet automatically

    Any hints to do this with a shell-script, ruby or php ?

  • shell script ffmpeg stops after 2 jobs

    19 octobre 2015, par Chris James Champeau

    I have a pretty simple shell script and after doing the first two jobs, it just stops and sits there, doesnt do anything, it doesnt seem to matter what the third job is, if I switch the order etc, it will not finish it.

    Any ideas would be great...

    Here is my shell script

    for f in "$@"
    
do
    
name=$(basename "$f")
    
dir=$(dirname "$f")
    
/opt/local/bin/ffmpeg -i "$f" -y -b 250k -deinterlace -vcodec vp8 -acodec libvorbis -nostdin "$dir/webm/${name%.*}.webm"
    
/opt/local/bin/ffmpeg -i "$f" -y -b 250k -strict experimental -deinterlace -vcodec h264 -acodec aac -nostdin "$dir/mp4/${name%.*}.mp4"
    
/opt/local/bin/ffmpeg -i "$f" -y -ss 00:00:15.000 -deinterlace -vcodec mjpeg -vframes 1 -an -f rawvideo -s 720x480 "$dir/img/${name%.*}.jpg"
    
done

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