oilpainting.rb

require 'aviglitch'

unit = 3
step = 1

cmd = "ffmpeg -i %s -an -vcodec copy -r 30 tmp.avi" % ARGV.shift
system cmd
g = AviGlitch.open "tmp.avi"
g.glitch :keyframe do |x|
  nil
end

q = nil
(g.frames.size / step).to_i.times do |i|
  pos = i * step
  f = g.frames[pos, unit]
  if q.nil?
    q = f
  else
    q.concat f
  end
  printf "\r>> %4d/%d", pos, g.frames.size
  $stdout.flush
end
puts

AviGlitch.open(q).output("out.avi")
File.unlink("tmp.avi")