这是啥??

h5页面调用摄像头(简易版)

复制代码
<input type="button" value="OpenVideo" id="btnOpenVideo" />
<input type="button" value="TakePicture" id="btnTakePicture" />
<input type="button" value="CloseVideo" id="btnCloseVideo" />
<br />
<video style="width:500px;height:500px;border:1px solid #000000;" id="videoTest"></video>
<canvas style="width:500px;height:500px;border:1px solid #000000;" id="canvasTest"></canvas>
<script type="text/javascript">
  window.onload = function () {
    let btnOpenVideo = document.getElementById('btnOpenVideo');
    let btnTakePicture = document.getElementById('btnTakePicture');
    let btnCloseVideo = document.getElementById('btnCloseVideo');
    let video = document.getElementById('videoTest');
    let canvas = document.getElementById('canvasTest').getContext('2d');
    btnOpenVideo.onclick = function () {
      window.navigator.getUserMedia({
        video: true/*视频/摄像头*/
        /*audio:true*//*音频/麦克风*/
      }, function (param) {         video.src = window.URL.createObjectURL(param);/*设置video控件路径,实时显示摄像头的图像*/         btnCloseVideo.onclick = function () {/*关闭摄像头*/           if (param.getTracks())/*Chrome*/             param.getTracks()[0].stop();           else             param.stop();         };         btnTakePicture.onclick = function () {/*拍照*/           canvas.drawImage(document.getElementById('videoTest'), 0, 0, 500, 500);/*将拍摄的照片画到canvas中*/         };       }, function (err) {         alert(err);       });     };   }; </script>
复制代码

 

posted @   Joseph_Bee  阅读(5133)  评论(1编辑  收藏  举报
努力加载评论中...

这又是啥??

点击右上角即可分享
微信分享提示