Mov to GIF

mov_to_gif.rb

require 'rubygems'
require 'open-uri'
require 'uri'
require 'streamio-ffmpeg'
require 'rmagick'


@path = ARGV[0]

fileName = File.basename(URI.parse(@path).path)

open(fileName, 'wb') do |output|
  open(@path) do |data|
    output.write(data.read)
  end
end

framerate = 15

movie = FFMPEG::Movie.new fileName

FileUtils.mkdir_p("tmp") unless FileTest.exist?("tmp")

begin 
  movie.transcode "tmp/%3d.png", "-loglevel error -an -r #{framerate} -s 540x540  -t 00:00:06" 
rescue
end

list = Magick::ImageList.new
Dir.glob "tmp/*.png" do |f|
    list.push Magick::Image.read(f).first
end
list.delay = (100/framerate).to_i
list.write "animate.gif"

FileUtils.rm_r(Dir.glob('tmp/*'))
Dir.delete("tmp")