Web编程大作业(六)桌面直播+人脸识别+总结(ffmpeg,jsmpeg,jquery.facedetection)

最新推荐文章于 2025-11-12 09:51:58 发布

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最新推荐文章于 2025-11-12 09:51:58 发布 · 992 阅读

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CC 4.0 BY-SA版权

文章标签：

#人脸识别 #js #java #javascript

本文介绍了使用ffmpeg、jsmpeg和jquery.facedetection实现桌面直播和简单人脸识别的过程。桌面直播通过ffmpeg推流至服务器，学生端通过WebSocket获取视频。人脸识别采用jquery.facedetection，能检测脸部位置但无法识别具体人。总结指出，项目提升了网络知识，但JavaScript基础仍有待加强。

桌面直播

只能算是一个基于ffmpeg和jsmpeg的应用。

首先需要安装的内容有：ffmpeg、jsmpeg、ws模块

安装过程reference:https://my.oschina.net/chengpengvb/blog/1832469 （ffmpeg建议在官网装最新的可执行版本）

直接把下载下来的jsmpeg的代码引入网站后端

var STREAM_SECRET = 'supersecret',
	STREAM_PORT = 8081,
	WEBSOCKET_PORT = 8082,
	RECORD_STREAM = false;

// Websocket Server
var socketServer = new WebSocket.Server({
   
   port: WEBSOCKET_PORT, perMessageDeflate: false});
socketServer.connectionCount = 0;
socketServer.on('connection', function(socket, upgradeReq) {
   
   
	socketServer.connectionCount++;
	console.log(
		'New WebSocket Connection: ',
		(upgradeReq || socket.upgradeReq).socket.remoteAddress,
		(upgradeReq || socket.upgradeReq).headers['user-agent'],
		'('+socketServer.connectionCount+' total)'
	);
	socket.on('close', function(code, message){
   
   
		socketServer.connectionCount--;
		console.log(
			'Disconnected WebSocket ('+socketServer.connectionCount+' total)'
		);
	});
});
socketServer.broadcast = function(data) {
   
   
	socketServer.clients.forEach(function each(client) {
   
   
		if (client.readyState === WebSocket.OPEN) {
   
   
			client.send(data);
		}
	});
};

// HTTP Server to accept incomming MPEG-TS Stream from ffmpeg
var streamServer = http.createServer( function(request, response) {
   
   
	var params = request.url.substr(1).split('/');

	if (params[0] !== STREAM_SECRET) {
   
   
		console.log(
			'Failed Stream Connection: '+ request.socket.remoteAddress + ':' +
			request.socket.remotePort + ' - wrong secret.'
		);
		response.end();