gistfile1.rb

private
  def mediainfo!
    # ANSI-C quoting: http://www.faqs.org/docs/bashman/bashref_12.html
    @escaped_full_filename = @full_filename.gsub(/\\|'/) { |c| "\\#{c}" } 
    raw_response = `#{@mediainfo_binary} $'#{@escaped_full_filename}'` 
    raise "Execution of #{mediainfo_binary} failed!" unless $? == 0
    return raw_response
  end

>> require 'mediainfo'
=> true
>> mediainfo = Mediainfo.new "foo(bar).mov"
=> #<Mediainfo:0xb79f6304 @mediainfo_binary="mediainfo", @raw_response="...", @path=".", @escaped_full_filename="foo(bar).mov", @full_filename="foo(bar).mov", @filename="foo(bar).mov", @parsed_response={...}
>> mediainfo.nil?
=> false
>> mediainfo.video?
=> true
>> mediainfo.audio?
=> true
>> exit