apache-flex - 通过 flex 创建视频

Question

录制后我有一个带有网络摄像头视频录制的网站以保存到我的服务器。我的问题是，当我录制网络摄像头视频时，我想在其中附加一个介绍文本。ic 显示前 10 秒的文本。

这是我的示例代码

 protected function button3_clickHandler(event:MouseEvent):void
            {
                nc = new NetConnection();
                nc.objectEncoding = flash.net.ObjectEncoding.AMF3;
                nc.connect("rtmp://localhost/webcamrecording/");
                                                                                                          nc.addEventListener(NetStatusEvent.NET_STATUS,staushandler);
                //Alert.show(nc.toString());


            }


protected function staushandler(obj:NetStatusEvent):void
            {
                var str:String=obj.info.code;
                Alert.show(str);

                camera = Camera.getCamera();
                microphone = Microphone.getMicrophone();
                vDisplay.attachCamera(camera);
                nsPublish = new NetStream(nc);
                nsPublish.publish("streamer", "record");
                nsPublish.attachCamera(camera);
                nsPublish.attachAudio(microphone);
            }

<s:Panel title="Video">
<mx:VideoDisplay id="vDisplay" creationComplete="VideoDisplay_creationCompleteHandler(event)" height="300" width="400"/>
</s:Panel>
<s:Button label="Record" click="button3_clickHandler(event)" />

提前致谢