<title>W3Cschool教程(w3cschool.cn)</title>
<video id="video1" controls width="270" autoplay>
<source src="/statics/demosource/mov_bbb.mp4" type='video/mp4'>
<source src="/statics/demosource/mov_bbb.ogg" type='video/ogg'>
<source src="mov_bbb.webm" type='video/webm'>
<p>画布 (代码在每20毫秒绘制当前的视频帧):</p>
<canvas id="myCanvas" width="270" height="135" style="border:1px solid #d3d3d3;">
您的浏览器不支持 HTML5 canvas 标签。
var v=document.getElementById("video1");var c=document.getElementById("myCanvas");v.addEventListener('play', function() {var i=window.setInterval(function() {ctx.drawImage(v,5,5,260,125)},20);},false);v.addEventListener('pause',function() {window.clearInterval(i);},false);v.addEventListener('ended',function() {clearInterval(i);},false);