[英]fullscreen centering html5 video live feed
我想从设备的摄像头获得全屏实时供稿,但要居中。 因此,如果我的脸在中间,那么我希望在任何设备上都将我的脸在中间(无论宽高比(横向<->纵向))
HTML:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Picture time!</title>
<link rel="stylesheet" href="./style.css">
</head>
<body>
<video id="video" autoplay="autoplay" onclick="snapshot()"></video>
<canvas id="canvas" style="display: none"></canvas>
<script src="./jquery.min.js"></script>
<script src="./script.js"></script>
</body>
</html>
CSS:
body {
margin: 0;
padding: 0;
width: 100vw;
height: 100vh;
overflow: hidden;
}
#video {
position: absolute;
}
进行重新缩放的JS函数:
function rescaleEverthing(){
var jqueryVideo = $("#video");
var body = $("body");
var videoWidth = jqueryVideo.width();
var videoHeight = jqueryVideo.height();
var bodyWidth = body.width();
var bodyHeight = body.height();
var videoRatio = videoWidth / videoHeight;
var bodyRatio = bodyWidth / bodyHeight;
if(vi)
if(videoRatio > bodyRatio){
jqueryVideo.css("height", "100%");
jqueryVideo.css("transform", "translateX(-" + (videoWidth-bodyWidth)/2 + "px)");
} else {
jqueryVideo.css("width", "100%");
jqueryVideo.css("transform", "translateY(-" + (videoHeight-bodyHeight)/2 + "px)");
}
}
但是,当您运行该程序时,我的视频的中间位置不在纵向模式下的中间位置
有人可以帮忙吗? 谢谢!
您不需要JS来执行,请查看对象适合选项:
body { margin: 0; padding: 0; width: 100vw; height: 100vh; overflow: hidden; position:relative; } video { width:100%; height:100%; object-fit: contain; }
<video video-player controls id="video_player" src="http://dash.akamaized.net/akamai/bbb/bbb_1280x720_60fps_6000k.mp4"></video>
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.