gistfile1.rb

#! /usr/bin/env ruby
 
if ARGV[0].nil? || ARGV[1].nil?
  puts "Error. Uso: #{$0} wmv_folder/ flv_folder/"
end
 
Dir.open(ARGV[0]).entries.sort.each do |entry|
  if [".", ".."].include? entry
    next
  end
 
  file_wmv = "#{ARGV[0]}/#{entry}"
  file_flv = "#{ARGV[1]}/#{entry.split(".").first}.flv"
 
  `ffmpeg -i #{file_wmv} -sameq -acodec libmp3lame -ar 22050 -ab 96000 -deinterlace -nr 500 -s 1024x768 -r 20 -g 500 -me_range 20 -b 270k -deinterlace -f flv -y #{file_flv}`
end