问如何在局域网(无卷/层)与空中建立Flash对等通信

EN

package {

import flash.display.Sprite;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.events.NetStatusEvent;
import flash.events.SecurityErrorEvent;
import flash.media.Camera;
import flash.media.Microphone;
import flash.media.Video;
import flash.net.GroupSpecifier;
import flash.net.NetConnection;
import flash.net.NetGroup;
import flash.net.NetStream;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
import flash.text.TextFormat;

[SWF(width="640", height="920", frameRate="60")]
public class LoudApp extends Sprite {

    private var _interpreterStartButton:TextField = new TextField();
    private var _listenerStartButton:TextField = new TextField();
    private var _connectedLabel:TextField = new TextField();
    private var _userTextField:TextField = new TextField();

    private var _stream:NetStream;
    private var _netConnection:NetConnection;
    private var _netGroup:NetGroup;
    private var _isConnected:Boolean;
    private var _listenerStream:NetStream;
    private var _isListener:Boolean;
    private var _video:Video;

    public function LoudApp() {
        addEventListener(Event.ADDED_TO_STAGE, init, false, 0, true);
    }

    private function connect():void{
        _netConnection = new NetConnection();
        _netConnection.addEventListener(NetStatusEvent.NET_STATUS,netStatus);
        _netConnection.addEventListener(SecurityErrorEvent.SECURITY_ERROR, securityErrorHandler);
        _netConnection.connect("rtmfp:");
    }

    private function securityErrorHandler(event:SecurityErrorEvent):void {
        trace("securityErrorHandler: " + event);
    }

    private function init(event:Event):void {
        _listenerStartButton.border = _interpreterStartButton.border = true;
        _listenerStartButton.backgroundColor = _interpreterStartButton.borderColor = 0;
        _listenerStartButton.autoSize = _interpreterStartButton.autoSize = TextFieldAutoSize.LEFT;
        _listenerStartButton.selectable = _interpreterStartButton.selectable = false;

        _connectedLabel = new TextField();
        _connectedLabel.y = 70;
        _connectedLabel.text = "not connected";

        _listenerStartButton.addEventListener(MouseEvent.CLICK, onButtonClicked, false, 0, true);
        _interpreterStartButton.addEventListener(MouseEvent.CLICK, onButtonClicked, false, 0, true);

        _interpreterStartButton.text = " Start\rTalking! ";
        _listenerStartButton.text = " Start\rListening! ";

        addChild(_interpreterStartButton);
        addChild(_listenerStartButton);
        addChild(_connectedLabel);

        _listenerStartButton.x = 120;
        var textFormat:TextFormat = new TextFormat(null, 30, 0x000000, true);
        _listenerStartButton.setTextFormat(textFormat);
        _interpreterStartButton.setTextFormat(textFormat);


//        Init the Video

        _video = new Video(stage.stageWidth, stage.stageHeight - 100);
        _video.y = 100;
        addChild(_video);

       connect();
    }

    private function onButtonClicked(event:MouseEvent):void {
        _isListener = event.target == _listenerStartButton;


        _listenerStartButton.removeEventListener(MouseEvent.CLICK, onButtonClicked);
        _interpreterStartButton.removeEventListener(MouseEvent.CLICK, onButtonClicked);

        removeChild(_listenerStartButton) && removeChild(_interpreterStartButton);

        /*_isConnected && */setupStream();

    }

    private function setupStream():void{
        var groupSpecifier:GroupSpecifier = new GroupSpecifier("en-GB");
        groupSpecifier.serverChannelEnabled = true;
        groupSpecifier.multicastEnabled = true;
        groupSpecifier.ipMulticastMemberUpdatesEnabled = true;
        groupSpecifier.addIPMulticastAddress("225.225.0.1:30303");

//        _netGroup = new NetGroup(_netConnection, groupSpecifier.groupspecWithAuthorizations());
//        _netGroup.addEventListener(NetStatusEvent.NET_STATUS, netStatus);

        _stream = new NetStream(_netConnection, groupSpecifier.groupspecWithAuthorizations());
        _stream.addEventListener(NetStatusEvent.NET_STATUS, netStatus);

        if(_isListener){
            _video.attachNetStream(_stream);
            _stream.receiveAudio(true);
//            _stream.receiveVideo(false);
            _stream.play('sound');
            return;
        }else{
            if(!Microphone.isSupported) return;

            _stream.attachAudio(Microphone.getMicrophone());
//            var camera:Camera = Camera.getCamera();
//            _stream.attachCamera(camera);
            _stream.publish("sound", "live");
//            _video.attachCamera(camera);

        }


    }

    private function netStatus(event:NetStatusEvent):void{
        switch(event.info.code){
            case "NetConnection.Connect.Success":
//                _isConnected = true;
//                _connectedLabel.text = "CONNECTED !";
                break;
            case "NetGroup.Connect.Success":
                _isConnected = true;
                _connectedLabel.text = "CONNECTED !";
                break;
            case "NetStream.Connect.Success":

                break;
            case "NetStream.Publish.Start":
                break;
        }
    }

    private function set listenerStream(value:NetStream):void {
        _listenerStream = value;
    }

}
}