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    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
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    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 (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

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    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 (...)

Sur d’autres sites (15906)

  • avconv : make -frames work for all types of streams, not just video.

    1er janvier 2012, par Anton Khirnov

    avconv : make -frames work for all types of streams, not just video.

  • avconv : make -frames work for all types of streams, not just video.

    1er janvier 2012, par Anton Khirnov

    avconv : make -frames work for all types of streams, not just video.

  • Using ffmpeg to capture frames at intervals from a video

    25 octobre 2011, par TheShaggyBeard

    So here is what I am trying to do - I want to automate creating animated gif previews from a video file (in this case I know they will always be a specific format). Here is what I have :

    echo 'Make a folder named "filenamemp4"'
    
folderName=$(find . -type f -name "*.mp4" | grep -o [[:alnum:]] | tr -d '\n' | cat)
    

    
echo 'Grab the frame rate and total number of frames and put them into xaa and xab'
    
qtinfo asa.mp4 | awk 'NR = 1 { print $2 }' | grep -o "^[0-9]*" | split -l 1
    

    
echo 'Assign values to variable'
    
frameRate=$(cat xaa)
    
frameTotal=$(cat xab)
    
videoLength=$(expr $frameTotal / $frameRate)
    

    
echo 'Take a screenshot at 10% intervals - this is the part that gives me a bitrate error.  It says that the -r option has an invalid input being 1 / value of videoLength' 
    
ffmpeg -i asa.mp4 -y -ss $videoLength -an -sameq -f image2 -s 'qcif' -r $(expr 1/$videoLength) preview%02d.jpg
    

    
echo 'Take the jpgs and mash them into an animated gif'
    
convert -delay 50 -loop 10 preview*.jpg preview.gif
    

    
echo 'Move the gif to the specified folder'
    
mv preview.gif $folderName/preview.gif
    

    
echo 'Clean Up'
    
find . -type f -name "*.jpg" -exec rm -rf {} \;

    So perhaps there is a better way of doing this, or I am understanding how to use the -r option of ffmpeg wrong. In the tutorial I read on ffmpeg for a similar scenario, they used -r 1/5 to produce frames with a 5 second interval. My assumption is that for the desired interval you want, you just slap it in the denominator for the -r option.

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