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Médias (1)
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La conservation du net art au musée. Les stratégies à l’œuvre
26 mai 2011
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (50)
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Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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Automated installation script of MediaSPIP
25 avril 2011, parTo 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 (...) -
Other interesting software
13 avril 2011, parWe don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
We don’t know them, we didn’t try them, but you can take a peek.
Videopress
Website : http://videopress.com/
License : GNU/GPL v2
Source code : (...)
Sur d’autres sites (5798)
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Using ffmpeg to capture frames at intervals from a video
25 octobre 2011, par TheShaggyBeardSo 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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avconv : make -frames work for all types of streams, not just video.
1er janvier 2012, par Anton Khirnovavconv : make -frames work for all types of streams, not just video.
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avconv : make -frames work for all types of streams, not just video.
1er janvier 2012, par Anton Khirnovavconv : make -frames work for all types of streams, not just video.