SoundRAW loop

SoundRAW

package core 
{
	import display.TimelineMemoryBlock;
	import flash.events.SampleDataEvent;
	import flash.media.Sound;
	import avm2.intrinsics.memory.*;
	
	/**
	 * ...
	 * @author Oldes
	 */
	public class SoundRAW extends Sound 
	{

		protected var mPointerHead:uint;
		protected var mPointerTail:uint;
		protected var mPointer:uint;
		
		public function SoundRAW(memoryBlock:TimelineMemoryBlock) 
		{
			super();
			mPointerHead = memoryBlock.head;
			mPointerTail = memoryBlock.tail;
			mPointer = mPointerHead ;

			this.addEventListener(SampleDataEvent.SAMPLE_DATA, sampleData);
		}
		public function dispose():void {
			this.removeEventListener(SampleDataEvent.SAMPLE_DATA, sampleData);
		}
		private function sampleData(event:SampleDataEvent):void
		{
			var p:uint = mPointer;
			for (var i:int = 0; i < 5292; i++) 
			{ 
				event.data.writeFloat( sxi16(li16(p)) / 32767  ); 
				if ((p += 2) >= mPointerTail) p = mPointerHead;
			} 
			mPointer = p;
		}   
	}
}