<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<video id="player_html5_api" autoplay controls="controls">
<source src="images/视频.mp4" crossOrigin="anonymous"/>
</video>
<button onclick="cut()">截图</button>
<div id="imgOut"></div>
<script>
var cut = function (){
var scale = 0.25;
var video = document.getElementById("player_html5_api");
var canvas = document.createElement("canvas");
canvas.width = video.videoWidth * scale;
canvas.height = video.videoHeight * scale;
canvas.getContext('2d').drawImage(video, 0, 0, canvas.width, canvas.height);
canvas.setAttribute("id", "canvas");
document.getElementById("imgOut").append(canvas)
console.log(canvas.toDataURL());
}
</script>
</body>
</html>
注：
① canvas.toDataURL()会报错
②实际项目中，需要上传图片接口，获取图片的url
