H5技術調取本地攝像頭
阿新 • • 發佈:2018-11-27
<style>
#video {
width:640px;
height:480px;
}
#picture {
width:100%;
}
</style>
<video id="video" autoplay=""></video>
<div><button id='picture'>相機</button></div><canvas id="canvas" width="640" height="480"></canvas>
<script type="text/javascript">
var video = document.getElementById("video");
var context = canvas.getContext("2d");
var errocb = function () {
console.log('sth wrong!');
}
if (navigator.getUserMedia) { // 標準的API
navigator.getUserMedia({ "video": true }, function (stream) {
video.src = stream;
video.play();
}, errocb);
} else if (navigator.webkitGetUserMedia) { // WebKit 核心的API
navigator.webkitGetUserMedia({ "video": true }, function (stream) {
video.src = window.webkitURL.createObjectURL(stream);
video.play();
}, errocb);
}
document.getElementById("picture").addEventListener("click", function () {
context.drawImage(video, 0, 0, 640, 480);
});
</script>