我的需求是在电脑端调起电脑上面的摄像头,有可能是电脑自带的摄像头也可能是插入的USB摄像头
下面这个是如果用户有两个摄像头的话,会将这两个摄像头都列出来,用户可以自己选择使用哪个摄像头。
下面是html代码
<div id="container">
<div class="select">
<label for="audioSource">Audio source: </label><select id="audioSource"></select>
</div>
<div class="select">
<label for="videoSource">Video source: </label><select id="videoSource"></select>
</div>
</div>
<div id="promoNode"></div>
<video id="video" width="640" height="480" autoplay></video>
<button id="snap" class="sexyButton">Snap Photo</button>
<canvas id="canvas" width="640" height="480"></canvas>
下面是javascript代码
//调用摄像头
var canvas = document.getElementById('canvas');
var context = canvas.getContext('2d');
var video = document.getElementById('video');
var mediaConfig = { video: true };
var errBack = functio