此代码无法将照片保存在硬盘上，因此任何人都可以告诉我哪个代码将用于将照片保存到硬盘。
<html>
<head>
<div id="my_camera" style="width:520px; height:440px;margin-left:180px;"></div>
<div id="my_result" style="position:absolute;margin-left:740px;margin-top:-440px;"></div>
<script src="cam/webcam.js"></script>
<script type="text/javascript">
Webcam.attach('#my_camera');
function take_snapshot() {
Webcam.set({
width: 320,
height: 240,
dest_width: 640,
dest_height: 480,
image_format: 'jpg',
jpeg_quality: 90,
force_flash: false,
flip_horiz: true,
fps: 45
});
Webcam.snap(function(data_uri) {
document.getElementById('my_result').innerHTML = '<img src="' + data_uri + '"/>';
});
}
</script>
<a href="javascript:void(take_snapshot())" style="margin-left:400px">Take Snapshot</a>
</head>
</html>
<?php
move_uploaded_file($_FILES['webcam']['tmp_name'], 'webcam.jpg');
?>
您需要
将捕获的图像发布到php，为此您可以使用jquery .ajax()，这是一个完整的示例：
上传.php
<?php
$img = !empty($_REQUEST['imgBase64']) ? $_REQUEST['imgBase64'] : die("No image was posted");
$imgName = $_REQUEST['imgName'];
$img = str_replace('data:image/png;base64,', '', $img);
$img = str_replace(' ', '+', $img);
$fileData = base64_decode($img);
//saving
file_put_contents($imgName, $fileData);
现在js/jquery、css和html：
(function() {
// The width and height of the captured photo. We will set the
// width to the value defined here, but the height will be
// calculated based on the aspect ratio of the input stream.
var width = 320; // We will scale the photo width to this
var height = 0; // This will be computed based on the input stream
// |streaming| indicates whether or not we're currently streaming
// video from the camera. Obviously, we start at false.
var streaming = false;
// The various HTML elements we need to configure or control. These
// will be set by the startup() function.
var video = null;
var canvas = null;
var photo = null;
var startbutton = null;
function startup() {
video = document.getElementById('video');
canvas = document.getElementById('canvas');
photo = document.getElementById('photo');
startbutton = document.getElementById('startbutton');
navigator.getMedia = (navigator.getUserMedia ||
navigator.webkitGetUserMedia ||
navigator.mozGetUserMedia ||
navigator.msGetUserMedia);
navigator.getMedia({
video: true,
audio: false
},
function(stream) {
if (navigator.mozGetUserMedia) {
video.mozSrcObject = stream;
} else {
var vendorURL = window.URL || window.webkitURL;
video.src = vendorURL.createObjectURL(stream);
}
video.play();
},
function(err) {
console.log("An error occured! " + err);
}
);
video.addEventListener('canplay', function(ev) {
if (!streaming) {
height = video.videoHeight / (video.videoWidth / width);
// Firefox currently has a bug where the height can't be read from
// the video, so we will make assumptions if this happens.
if (isNaN(height)) {
height = width / (4 / 3);
}
video.setAttribute('width', width);
video.setAttribute('height', height);
canvas.setAttribute('width', width);
canvas.setAttribute('height', height);
streaming = true;
}
}, false);
startbutton.addEventListener('click', function(ev) {
takepicture();
ev.preventDefault();
}, false);
clearphoto();
}
// Fill the photo with an indication that none has been
// captured.
function clearphoto() {
var context = canvas.getContext('2d');
context.fillStyle = "#AAA";
context.fillRect(0, 0, canvas.width, canvas.height);
var data = canvas.toDataURL('image/png');
photo.setAttribute('src', data);
}
// Capture a photo by fetching the current contents of the video
// and drawing it into a canvas, then converting that to a PNG
// format data URL. By drawing it on an offscreen canvas and then
// drawing that to the screen, we can change its size and/or apply
// other changes before drawing it.
function takepicture() {
var context = canvas.getContext('2d');
if (width && height) {
canvas.width = width;
canvas.height = height;
context.drawImage(video, 0, 0, width, height);
var data = canvas.toDataURL('image/png');
photo.setAttribute('src', data);
$.ajax({
type: "POST",
url: "upload.php",
data: {
imgBase64: data,
imgName: "webcam.png"
}
}).done(function(o) {
console.log('saved');
});
} else {
clearphoto();
}
}
// Set up our event listener to run the startup process
// once loading is complete.
window.addEventListener('load', startup, false);
})();#video {
border: 1px solid black;
box-shadow: 2px 2px 3px black;
width:320px;
height:240px;
}
#photo {
border: 1px solid black;
box-shadow: 2px 2px 3px black;
width:320px;
height:240px;
}
#canvas {
display:none;
}
.camera {
width: 340px;
display:inline-block;
}
.output {
width: 340px;
display:inline-block;
}
#startbutton {
display:block;
position:relative;
margin-left:auto;
margin-right:auto;
bottom:32px;
background-color: rgba(0, 150, 0, 0.5);
border: 1px solid rgba(255, 255, 255, 0.7);
box-shadow: 0px 0px 1px 2px rgba(0, 0, 0, 0.2);
font-size: 14px;
font-family: "Lucida Grande", "Arial", sans-serif;
color: rgba(255, 255, 255, 1.0);
}
.contentarea {
font-size: 16px;
font-family: "Lucida Grande", "Arial", sans-serif;
width: 760px;
}<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script>
<meta charset='utf-8'>
</head>
<body>
<div class="contentarea">
<div class="camera">
<video id="video">Video stream not available.</video>
<button id="startbutton">Take photo</button>
</div>
<canvas id="canvas">
</canvas>
<div class="output">
<img id="photo" alt="The screen capture will appear in this box.">
</div>
</div>
</body>
</html>基于：
https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API/Taking_still_photos
https://stackoverflow.com/a/13198699/797495https://stackoverflow.com/a/31128229/797495
注意：
我已经在我的服务器上测试了代码，它按预期工作。