Saturday, 5 June 2010

Turn your OGV movie section into a cropped animated GIF

An example from a recent project

 # make directory for output jpg  
mkdir out_pics
# section to the ogv video file into jpegs
mplayer -ao null -ss 00:00:03 -endpos 50 beautiful_movie.ogv -vo jpeg:outdir=out_pics
cd out_pics
# loop over each image and crop into desired rectangle
for image in *.jpg
convert $image -crop 600x600+350+135 "$image crop.tiff"
# turn into an animated gif
convert -page 600x600+0+0 -coalesce -loop 0 *.tiff beautiful_animation.gif

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