ruby mp3一块儿给你转了 ogg

shijiang1130

1. require 'rubygems'
   
2. require 'gst'
   
3. 
   
4. def convert(s,d)
   
5. 
   
6. pipeline = Gst::Pipeline.new "audio-player"
   
7. source  = Gst::ElementFactory.make "filesrc",      "file-source"
   
8. decoder = Gst::ElementFactory.make "mad",          "mp3-decoder"
   
9. conv    = Gst::ElementFactory.make "audioconvert", "converter"
   
10. encoder = Gst::ElementFactory.make "vorbisenc",    "vorbis-encoder"
    
11. muxer   = Gst::ElementFactory.make "oggmux",       "ogg-muxer"
    
12. sink    = Gst::ElementFactory.make "filesink",     "file-output"
    
13. 
    
14. source.location = s
    
15. sink.location = d
    
16. 
    
17. main_loop = GLib::MainLoop.new
    
18. 
    
19. pipeline.bus.add_watch do |bus, message|
    
20.   case message.type
    
21.   when Gst::Message::EOS
    
22.     puts 'End of stream'
    
23.     main_loop.quit
    
24.   when Gst::Message::ERROR
    
25.     puts message.parse.join ': '
    
26.     main_loop.quit
    
27.   when Gst::Message::INFO
    
28.     puts "Info: #{message.parse}"
    
29.   end
    
30.   true
    
31. end
    
32. 
    
33. pipeline.add source, decoder, conv, encoder, muxer, sink
    
34. source >> decoder >> conv >> encoder >> muxer >> sink
    
35. 
    
36. pipeline.play
    
37. puts 'Running...'
    
38. 
    
39. begin
    
40.   main_loop.run
    
41. rescue Interrupt
    
42. ensure
    
43.   puts 'Returned, sopping playing'
    
44.   pipeline.stop
    
45. end
    
46. end
    
47. 
    
48. Dir.glob('/home/lookdata.cn/*.mp3').each { |mp3|
    
49. ogg = File.basename(mp3,'.mp3')
    
50. 
    
51. convert(mp3,"/home/lookdata.cn/Music/#{ogg}.ogg")
    
52. 
    
53. }
    

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