Copy paste for ffmpeg

gistfile1.rb

#!/usr/bin/ruby
require "fileutils"


#infos about the images
prefix= "X10s100l5m_MOV4_topo_";
beginning= 5;
ending=114;

produce_name =  "img";

filenames = Dir.glob("*.png")

filenames.each do |filename|
    filename.slice! prefix.to_s 
    filename.slice! ".png"

    if filename.to_i<= ending and filename.to_i>= beginning
    	num=filename.to_i-beginning+1
    	FileUtils.cp(prefix+filename+".png","temp/"+produce_name+num.to_s+".png", :verbose => true,:preserve => true)
    end
end

exec "./ffmpeg -f image2 -i temp/#{produce_name}%d.png movies/#{prefix}.mpg"
exec "rm temp/*.png"