本文主要包含html5,摄像头,调用等相关知识,匿名希望在学习及工作中可以帮助到您
() {
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>
/*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>
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