Difference between revisions of "Screenshot video"

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[[Category:Engineering]]
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[[Category:Free_Software]]
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[[Category:Imaging]]
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[[Category:Shell]]
  
<pre>
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Click to download: [http://www.noah.org/engineering/src/dotfiles/bin/capture capture]
#!/bin/bash
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<include svncat src="file:///home/svn/src/dotfiles/bin/capture" highlight="sh" />
#
 
# Window capture
 
#
 
# This captures screenshot sequences of a window.
 
# The snapshot captures are saved to PNG files.
 
# When done an NTSC mpeg4 video is created (in an AVI container).
 
#
 
# To use, start this script. Use the cross-hair cursor to
 
# select a window. Every time you press Enter a snapshot
 
# is captured. Enter q to stop capturing. An AVI video file
 
# will then be created.
 
#
 
# Dependencies: ImageMagick and Mplayer tools
 
# Based on a script by Chad Files.
 
#
 
# Noah Spurrier 2007
 
#
 
# TODO Need to check for dependencies:
 
# TODO mpeg2encode
 
# TODO mencoder
 
# TODO xwininfo
 
# TODO import, convert
 
#
 
 
 
i=1
 
echo "Use the cursor and select the window you want to capture."
 
WINDOW_ID=`xwininfo | grep "Window id:" | awk '{print $4}'`
 
while [ 1 ]
 
do
 
    x=$[i+100000000]; # used to zero pad the filename
 
    echo "Enter q to stop capturing frames."
 
    echo -e "Press Enter to capture frame ${x/1/}: \c "
 
    read RESPONSE
 
    case "$RESPONSE" in
 
        [qQ]*)
 
            break
 
            ;;
 
    esac
 
    # sleep 1
 
    import +dither -depth 8 -frame -window $WINDOW_ID "${x/1/}.png"
 
    i=$(( $i + 1 ))
 
done
 
 
 
# convert PNG sequences to mpeg4 video at 1 frame every two seconds.
 
#mogrify -antialias -resize 720x486! 0*.png
 
mencoder "mf://*.png" -mf fps=0.5 -o capture.avi -ovc lavc -lavcopts vcodec=mpeg4
 
 
 
#convert -antialias -resize 720x486! -delay 200 0*.png capture.m2v
 
</pre>
 

Latest revision as of 17:12, 24 April 2014


Click to download: capture <include svncat src="file:///home/svn/src/dotfiles/bin/capture" highlight="sh" />