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Pixel Bender Audio Sample MXML
actionscript3
  1. <?xml version="1.0" encoding="utf-8"?>
  2. <mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="162" height="274">
  3. 	<mx:Script>
  4. 		<![CDATA[
  5. 			private var source:Sound = new Sound();
  6. 			private var output:Sound = new Sound();
  7. 			private var sourcePos:Number = 0;
  8. 			private static var BUFFER_SIZE:uint = 0x800;
  9.             [Embed(source="../pbj/Volume1Channel.pbj", mimeType="application/octet-stream")]
  10.             private var volumeFilter:Class;
  11. 			private var effectShader:Shader = new Shader(new volumeFilter() as ByteArray);
  12.  
  13. 			private function loadAudioFile():void
  14. 			{
  15. 				var fileToLoad:File = new File();
  16. 				fileToLoad.browseForOpen( "choose an audio file", [new FileFilter("MP3 file", "*.mp3") ] );
  17. 				fileToLoad.addEventListener(Event.SELECT, audioFileSelected);
  18. 			}
  19. 			private function audioFileSelected(event:Event):void
  20. 			{
  21. 				var fileToLoad:File = event.target as File;
  22. 				fileToLoad.removeEventListener(Event.SELECT, audioFileSelected);
  23. 				var urlRequest:URLRequest = new URLRequest(fileToLoad.url);
  24. 				source.load(urlRequest);
  25. 				source.addEventListener(Event.COMPLETE, sourceFileLoaded);
  26. 			}
  27. 			private function sourceFileLoaded(event:Event):void
  28. 			{
  29. 				event.target.removeEventListener(Event.COMPLETE, sourceFileLoaded);
  30. 				output.addEventListener(SampleDataEvent.SAMPLE_DATA, processSound);
  31. 				output.play();				
  32. 			}
  33.  
  34. 			private function processSound(event:SampleDataEvent):void
  35. 			{
  36. 				var shaderBuffer:ByteArray = new ByteArray();
  37. 				shaderBuffer.length = BUFFER_SIZE * 2 * 4;
  38. 				sourcePos += source.extract(shaderBuffer, BUFFER_SIZE, sourcePos);
  39. 				shaderBuffer.position=0;
  40.  
  41. 				effectShader.data["source"].width = BUFFER_SIZE / 1024;
  42. 				effectShader.data["source"].height = 512;
  43. 				effectShader.data["source"].input = shaderBuffer;
  44. 				effectShader.data["volume"].value = [ leftSlider.value, righttSlider.value ];
  45.  
  46. 				var effectJob:ShaderJob = new ShaderJob( effectShader, event.data, BUFFER_SIZE / 1024, 512 );	
  47. 				effectJob.start(true);
  48. 			    if ( ( sourcePos >= (source.bytesLoaded*2) ) && loopBtn.selected )
  49. 			    {
  50. 			    	sourcePos = 0;
  51. 			    }
  52. 			}
  53. 		]]>
  54. 	</mx:Script>
  55. 	<mx:Button x="10" y="10" label="Load Audio" id="LoadAudioBtn" click="loadAudioFile()"/>
  56. 	<mx:CheckBox x="107" y="10" label="loop" id="loopBtn"/>
  57. 	<mx:VSlider x="60" y="55" minimum="0.0" maximum="1.2" snapInterval="0.05" value="1.0" id="leftSlider" />
  58. 	<mx:VSlider x="92" y="55" minimum="0.0" maximum="1.2" snapInterval="0.05" value="1.0" id="righttSlider" />
  59.  
  60. </mx:WindowedApplication>
  61.  
';document.write(content);