<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="init()">
  <mx:Script>
    <![CDATA[
      private var _video:Video;
      private function init():void{
        _video = new Video(320,240);
        v_Display.addChild(_video);
        
        //获取cam对象.
        _video.attachCamera(Camera.getCamera());
        _video.width = 320
        _video.height = 240
      }
    ]]>
  </mx:Script>
  <mx:VideoDisplay id="v_Display" width="320" height="240"/>
</mx:Application>