BootWiki教程网
源代码：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>BootWiki 教程网</title> </head> <body> <p>要使用的视频:</p> <video autoplay controls id="video1" width="270"> <source src="mov_bbb.mp4" type='video/mp4'> <source src="mov_bbb.ogg" type='video/ogg'> <source src="mov_bbb.webm" type='video/webm'> </video> <p>画布 (代码在每20毫秒绘制当前的视频帧):</p> <canvas height="135" id="myCanvas" style="border:1px solid #d3d3d3;" width="270"> 您的浏览器不支持 HTML5 canvas 标签。 </canvas> <script> var v=document.getElementById("video1"); var c=document.getElementById("myCanvas"); ctx=c.getContext('2d'); 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); </script> </body> </html>
运行结果