画像を動画にする

movie.rb

class Movie
  attr_accessor :image_path
  attr_accessor :movie_path

  def initialize(image_path="~/", movie_path="~/")
    @image_path = image_path
    @movie_path = movie_path
  end

  public
  def capture
      filename = movie_path + now() + ".avi"
      save(filename)
  end

  private
  def save(filename)
    command = "ffmpeg -y -f image2 -r 5 -i #{@image_path}#{now()}-%08d.png -s 720x450 #{filename}"
    system(command)
  end

  def now
    Time.now.strftime("%Y-%m-%d")
  end
end

capture = Movie.new("/Users/hisamatsu/capture/image/", "/Users/hisamatsu/capture/movie/")
capture.capture