flex两个netstream实现视频分段加载播放

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/03/01/displaying-a-video-in-flex-using-the-netconnection-netstream-and-video-classes/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
				layout="vertical"
				verticalAlign="middle"
				backgroundColor="white"
				viewSourceURL="srcview/index.html" xmlns:local="*"
				initialize="init();">

	<mx:Script>
		<![CDATA[
			private var urlArr:Array=["http://221.122.36.143/oa/video/1.flv", "http://221.122.36.143/oa/video/2.flv", "http://221.122.36.143/oa/video/p2.mp4"];
			public function init():void{
				myVideo.urlArr = urlArr;
			}
			
		]]>
	</mx:Script>

	<local:mVideo id="myVideo"/>

</mx:Application>
第二个文件：
<?xml version="1.0" encoding="utf-8"?>
<mx:Panel 
		  xmlns:mx="http://www.adobe.com/2006/mxml"
		  creationComplete="init();">
	<mx:Script>
		<![CDATA[
			
			private var nc:NetConnection;
			private var ns:NetStream;
			private var nc2:NetConnection;
			private var ns2:NetStream;
			private var video:Video;
			
			[Bindable]
			public var urlArr:Array=null;

			private var count:int=0;
			private var finished1:int=1; //1：播放正在进行；0：播放结束
			private var finished2:int=0; //1：播放正在进行；0：播放结束

			private function init():void
			{

				var nsClient:Object={};

				nc=new NetConnection();
				nc.connect(null);

				ns=new NetStream(nc);
				ns.play(urlArr[count]);
				ns.client=nsClient;
				ns.addEventListener(NetStatusEvent.NET_STATUS, myTest1);
				video=new Video();
				video.name="video1";
				video.width=uic.width;
				video.height=uic.height;
				video.attachNetStream(ns);
				if (uic.getChildByName("video1") != null)
				{
					uic.removeChild(uic.getChildByName("video1"));
				}

				count++;
			}

			private function init2():void
			{

				var nsClient:Object={};

				nc2=new NetConnection();
				nc2.connect(null);
				ns2=new NetStream(nc2);
				ns2.play(urlArr[count]);
				ns2.client=nsClient;
				ns2.addEventListener(NetStatusEvent.NET_STATUS, myTest2);
				video=new Video();
				video.name="video2";
				video.width=uic.width;
				video.height=uic.height;
				video.attachNetStream(ns2);
				if (uic.getChildByName("video2") != null)
				{
					uic.removeChild(uic.getChildByName("video2"));
				}
				count++;
			}

			private function myTest1(event:NetStatusEvent):void
			{
				trace("count1==>>" + count);
				trace("count1 onStatus:" + event.info.code);
				if (event.info.code == "NetStream.Buffer.Full")
				{
					if (count == 1)
					{
						uic.addChild(video);
						init2();
					}
					if (finished2 == 1)
					{
						ns.seek(0);
						ns.pause();
					}
				}
				else if (event.info.code == "NetStream.Play.Stop")
				{
					finished1=0;
					finished2=1;
					uic.addChild(video);
					ns2.togglePause();
					if (count <= urlArr.length)
					{
						init();
					}

				}

			}

			private function myTest2(event:NetStatusEvent):void
			{
				trace("count2==>>" + count);
				trace("count2 onStatus:" + event.info.code);
				if (event.info.code == "NetStream.Buffer.Full")
				{
					if (finished1 == 1)
					{
						ns2.seek(0);
						ns2.pause();
					}
				}
				else if (event.info.code == "NetStream.Play.Stop")
				{
					finished2=0;
					finished1=1;
					uic.addChild(video);
					ns.togglePause();
					if (count <= urlArr.length)
					{
						init2();
					}
				}

			}
		]]>
	</mx:Script>
	<mx:VideoDisplay id="uic"
					 width="550"
					 height="450"/>

	<mx:ControlBar>
		<mx:Button label="Play/Pause"
				   click="ns.togglePause();"/>
		<mx:Button label="Rewind"
				   click="ns.seek(0); ns.pause();"/>
	</mx:ControlBar>
</mx:Panel>