swoole如何利用websocket搭建一个实时的摄像头监控？
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原理就是通过canvas实时获取摄像头每一帧数据转换成base64传给websocket服务器进行中转，代码如下：
1、用swool搭建一个websocket服务器来中转视频信号数据
<?php
$server = new swoole_websocket_server("0.0.0.0", 8080);
$server->on('message', function (swoole_websocket_server $server, $frame) {
foreach($server->connection_list() as $fd) {
$server->push($fd, $frame->data,true);
}
});
$server->start();
2、视频信号采集后发布到websocket服务器
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>录制页面</title>
</head>
<body>
<video autoplay id="sourcevid" style="width:640px;height:480px"></video>
<canvas id="output" style="display:none"></canvas>
<script type="text/javascript" charset="utf-8">
if( document.createElement('canvas').getContext ) {
var socket = new WebSocket("ws://"+document.domain+":8080"),
back = document.getElementById('output'),
backcontext = back.getContext('2d'),
video = docum...点击查看剩余70%
by thinkfuture
我知道答案，我要回答
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