# File lib/paperclip/frame_grab.rb, line 56
    def video_dimensions(file)
      dim = Paperclip.run('ffmpeg', '-i :source 2>&1', :source => File.expand_path(file.path), :expected_outcodes => [0,1], :swallow_stderr => false)
      $1 if dim =~ /(\d+x\d+)/
    end