我正在尝试使用jhuckaby的webcam.js添加2个或多个网络摄像头输入。但只有一个能完美运作。我正在学习本教程 https://pixlcore.com/demos/webcamjs/demos/preview.html
这是我的javascript代码:
Webcam.set({
width: 100,
height: 100,
force_flash: true,
image_format: 'jpeg'
});
// CAMERA 1
Webcam.attach('#my_camera');
function preview_snapshot() {
Webcam.freeze();
document.getElementById('pre_take_buttons').style.display = 'none';
document.getElementById('post_take_buttons').style.display = '';
}
function cancel_preview() {
Webcam.unfreeze();
document.getElementById('pre_take_buttons').style.display = '';
document.getElementById('post_take_buttons').style.display = 'none';
}
function save_photo() {
// actually snap photo (from preview freeze) and display it
Webcam.snap( function(data_uri) {
// display results in page
document.getElementById('results').innerHTML =
'<h5>Profil anda:</h5>' +
'<img src="'+data_uri+'"/>';
// swap buttons back
document.getElementById('pre_take_buttons').style.display = '';
document.getElementById('post_take_buttons').style.display = 'none';
var raw_image_data = data_uri.replace(/^data\:image\/\w+\;base64\,/, '');
document.getElementById('mydataProfil').value = raw_image_data;
} );
}
// Camera 1 END
// CAMERA 2
Webcam.attach('#my_camera_ktp');
function preview_snapshot_ktp() {
Webcam.freeze();
document.getElementById('pre_take_buttons_ktp').style.display = 'none';
document.getElementById('post_take_buttons_ktp').style.display = '';
}
function cancel_preview_ktp() {
Webcam.unfreeze();
document.getElementById('pre_take_buttons_ktp').style.display = '';
document.getElementById('post_take_buttons_ktp').style.display = 'none';
}
function save_photo_ktp() {
Webcam.snap( function(data_uri) {
// display results in page
document.getElementById('results_ktp').innerHTML =
'<h5>Profil anda:</h5>' +
'<img src="'+data_uri+'"/>';
// swap buttons back
document.getElementById('pre_take_buttons_ktp').style.display = '';
document.getElementById('post_take_buttons_ktp').style.display = 'none';
var raw_image_data = data_uri.replace(/^data\:image\/\w+\;base64\,/, '');
document.getElementById('mydataProfilKTP').value = raw_image_data;
} );
}
这是我的相机1 HTML代码:
<center>
<div id="my_camera"></div>
<br>
<div id="pre_take_buttons">
<input type=button value="Take Foto" onClick="preview_snapshot()">
</div>
</center>
<div id="post_take_buttons" style="display:none" class="text-center">
<input type=button value="< Take again" onClick="cancel_preview()">
<input type=button value="Save >" onClick="save_photo()">
</div>
相机2 HTML代码:
<center>
<div id="my_camera_ktp"></div>
<br>
<div id="pre_take_buttons_ktp">
<input type=button value="Take foto KTP" onClick="preview_snapshot_ktp()">
</div>
</center>
<div id="post_take_buttons_ktp" style="display:none" class="text-center">
<input type=button value="< take again" onClick="cancel_preview_ktp()">
<input type=button value="Save >" onClick="save_photo_ktp()">
</div>
问题是如果我使用相机1,相机2不起作用,如果我使用相机2,那么相机1不起作用。函数的名称和ID已经不同且唯一,Camera 1和2具有相同的功能和html,区别仅在于函数的名称和id。然后我在我的页面上使用inspect元素,向我显示这样的错误
Uncaught TypeError: this.getMovie(...)._snap is not a function
任何答案?