Flash/Flex学习笔记(12):FMS 3.5之如何做视频实时直播

硬件条件:一个摄像头 + 一台FMS服务器即可

原理:摄像头实时采集视频源,然后推送到FMS服务器,其它客户从FMS上获取视频流。

需要做二个fla,一个用于向FMS服务端推送视频源(即发送端),一个用于从FMS服务器获取并播放视频(即接收端)

Server.fla关键代码:

var cam:Camera;
var vod:Video;
var intervalId:uint;
var intelvalTimes:uint=0;
var isWorked=false;
var nc:NetConnection;
var ns:NetStream;

btnPublish.addEventListener(MouseEvent.CLICK,btnPublishClick);
lblMsg.text = "连接好摄像头后,\n点击下面的按钮"

//摄像头有活动时,被触发
function camActivityHandler(e:ActivityEvent) {
	trace(e);
	if (!isWorked) {
		intervalId=setInterval(checkCallBack,100);
	}
}

function checkCallBack():void {
	intelvalTimes+=1;
	trace(intelvalTimes);
	if (cam.currentFPS>0) {
		lblMsg.text="摄像头工作正常!";
		isWorked=true;
		clearInterval(intervalId);
		ns.publish("myCamera", "live");
		//同时处理本地播放
		vod = new Video();
		vod.attachCamera(cam);
		vod.height=cam.height;
		vod.width=cam.width;
		vod.x = 45;
		vod.y = 15;
		addChild(vod);
	} else {
		if (intelvalTimes>=10) {//持续检测2秒,仍然无图象的话,认为"设备无法使用(占用中)"
			lblMsg.text="设备无法使用(有可能被占用)";
			clearInterval(intervalId);
		}
	}
}

//用户选择"同意"或"不允许"使用摄像头时触发
function statusHandler(e:StatusEvent) {
	trace(e);
	if (e.code=="Camera.Muted") {
		lblMsg.text="您不允许使用摄像头!";
	} else if (e.code == "Camera.Unmuted") {
		lblMsg.text="摄像头视频获取中...";
	}
}

//推送按钮点击事件
function btnPublishClick(e:MouseEvent) {
	nc = new NetConnection();
	nc.addEventListener(NetStatusEvent.NET_STATUS, NetStatusHandler);
	nc.connect("rtmp://fms服务器ip地址/camlive");
}

//连接状态处理代码
function NetStatusHandler(event:NetStatusEvent):void {
	trace(event.info.code);
	if (event.info.code=="NetConnection.Connect.Success") {		
		cam=Camera.getCamera();
		if (cam==null) {
			this.lblMsg.text="未安装摄像头!";
			return;
		}
		cam.addEventListener(StatusEvent.STATUS, statusHandler);
		cam.addEventListener(ActivityEvent.ACTIVITY,camActivityHandler);
		ns=new NetStream(nc);
		ns.attachCamera(cam);
	}
}

 

Client.fla关键代码:

var nc:NetConnection;
var ns:NetStream;
var vod:Video;

btnReceive.addEventListener(MouseEvent.CLICK,function(){
	nc = new NetConnection();
	nc.addEventListener(NetStatusEvent.NET_STATUS, NetStatusHandler);
	nc.connect("rtmp://fms服务器ip地址/camlive");
})

//连接状态处理代码
function NetStatusHandler(event:NetStatusEvent):void {
	trace(event.info.code);
	if (event.info.code=="NetConnection.Connect.Success") {
		lblMsg.text = "正在获取视频..."
		ns=new NetStream(nc);
		ns.addEventListener(NetStatusEvent.NET_STATUS,nsNetStatusHandler);
		ns.play("myCamera");
		vod = new Video();
		vod.x=45;
		vod.y=15;
		vod.height=120;
		vod.width=160;
		vod.attachNetStream(ns);
		addChild(vod);		
	}
}

function nsNetStatusHandler(e:NetStatusEvent){
	trace(e.info.code);
}

在线演示:

推送端
接收端

上一篇:2021云栖大会所思所悟


下一篇:MYSQL 5.6锁定用户