Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
479 views
in Technique[技术] by (71.8m points)

html - HTML5: camera access

I am quite new to HTML5. I try the following HTML5 code to access camera on my mobile phone. It always display "Native web camera not supported". It seems that my mobile browser (safari and android 2.1 web browser) does not support the camera.

Could you please tell me which browser should I use to access to camera?

<!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, 0, 0, 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>
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

The getUserMedia method is now supported on Firefox 17+,Chrome 23+ and Opera 12+. (See caniuse.com)

Screenshot of the CanIUse.com support grid as of 2/24/12


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...