我是HTML5的新手。我尝试下面的HTML5代码访问我的手机上的摄像头。它总是显示“本机网络摄像头不支持”。看来我的手机浏览器(safari和android 2.1的网络浏览器)不支持相机。
你能告诉我应该使用哪个浏览器来访问摄像机？
<!doctype html>
<html>
<head>
<Meta charset="utf-8">
<Meta name="viewport" content="width=device-width,maximum-scale=1.0">
<style>
body {width: 100%;}
canvas {display: none;}
</style>
<script>
var video,canvas,msg;
var load = function () {
video = document.getElementById('video');
canvas = document.getElementById('canvas');
msg = document.getElementById('error');
if( navigator.getUserMedia ) {
video.onclick = function () {
var context = canvas.getContext("2d");
context.drawImage(video,240,320);
var image = {"demo" : {
"type" : "device","image" : canvas.toDataURL("image/png")
}};
};
var success = function ( stream ) {
video.src = stream;
};
var error = function ( err ) {
msg.innerHTML = "Error: " + err.code;
};
navigator.getUserMedia('video',success,error);
} else {
msg.innerHTML = "Native web camera not supported :(";
}
};
window.addEventListener('DOMContentLoaded',load,false);
</script>
</head>
<body>
<video id="video" width="240" height="320" autoplay> </video>
<p id="error">Click on the video to send a snapshot to the receiving screen</p>
<canvas id="canvas" width="240" height="320"> </canvas>
</body>
</html>
解决方法
Firefox 17，Chrome 23和Opera 12现在支持getUserMedia方法。 (见
caniuse.com)