下面是一个我根据自己的需要笨拙地定制的脚本,这是一个点对点的WebRTC调用,你可以看到自己在角落里的一个小盒子里,覆盖在发送给你的派对上全屏显示。 正如你所看到的,我对自己有一个小视图,然后是你的呼叫伙伴的视图。但是,我如何实现具有您自己视图的小方框是另一方面的重叠?
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0,
minimum-scale=1.0">
</head>
<body>
<section class="make-center">
<div id="videos-container"></div>
</section>
<script src="/dist/RTCMultiConnection.min.js"></script>
<script src="/socket.io/socket.io.js"></script>
<!-- custom layout for HTML5 audio/video elements -->
<script src="/dist/getMediaElement.js"></script>
<script>
// ......................................................
// ..................RTCMultiConnection Code.............
// ......................................................
var connection = new RTCMultiConnection();
// by default, socket.io server is assumed to be deployed on your own URL
connection.socketURL = '/';
// comment-out below line if you do not have your own socket.io server
// connection.socketURL =
'https://rtcmulticonnection.herokuapp.com:443/';
connection.socketMessageEvent = 'video-conference-demo';
connection.session = {
audio: true,
video: true
};
connection.sdpConstraints.mandatory = {
OfferToReceiveAudio: true,
OfferToReceiveVideo: true
};
connection.videosContainer = document.getElementById('videos-container');
connection.onstream = function(event) {
var width = parseInt(connection.videosContainer.clientWidth);
if (event.type === 'remote') {
var mediaElement = getMediaElement(event.mediaElement, {
title: event.userid,
buttons: [],
width: width,
showOnMouseEnter: false
});
connection.videosContainer.appendChild(mediaElement);
}
if (event.type === 'local') {
var mediaElement = getMediaElement(event.mediaElement, {
title: event.userid,
buttons: [],
width: width / 8,
showOnMouseEnter: false
});
connection.videosContainer.appendChild(mediaElement);
}
setTimeout(function() {
mediaElement.media.play();
}, 5000);
mediaElement.id = event.streamid;
};
connection.onstreamended = function(event) {
var mediaElement = document.getElementById(event.streamid);
if (mediaElement) {
mediaElement.parentNode.removeChild(mediaElement);
}
};
// ......................................................
// ......................Handling Room-ID................
// ......................................................
(function() {
var params = {},
r = /([^&=]+)=?([^&]*)/g;
function d(s) {
return decodeURIComponent(s.replace(/\+/g, ' '));
}
var match, search = window.location.search;
while (match = r.exec(search.substring(1)))
params[d(match[1])] = d(match[2]);
window.params = params;
})();
var roomid = '';
var hashString = location.hash.replace('#', '');
if (hashString.length && hashString.indexOf('comment-') == 0) {
hashString = '';
}
var roomid = params.roomid;
if (!roomid && hashString.length) {
roomid = hashString;
}
if (roomid && roomid.length) {
(function reCheckRoomPresence() {
connection.checkPresence(roomid, function(isRoomExists) {
if (isRoomExists) {
connection.join(roomid);
return;
}
if (!isRoomExists) {
connection.open(roomid);
return;
}
setTimeout(reCheckRoomPresence, 30000);
});
})();
}
// to make it one-to-one
connection.maxParticipantsAllowed = 1;
connection.onRoomFull = function(roomid) {
connection.closeSocket();
connection.attachStreams.forEach(function(stream) {
stream.stop();
});
};
</script>
<script src="/dist/common.js"></script>
</body>
</html>
提前致谢!
答案 0 :(得分:1)
我怀疑您的问题是.appendChild
将您的DOM元素添加到容器中的顺序。
首先,将元素设置为position:absolute
,以便它们可以放在彼此的顶部:
mediaElement.style.position = 'absolute';
现在,你必须决定哪个最重要。我建议使用这3个选项:
您可以使用.insertBefore
设置哪个DOM元素在另一个之前或之后。
首先,我建议你将两个变量都作为脚本的全局变量,然后你可以使用.insertBefore
将第二个元素设置在第一个元素之上。
例如:
var mediaElement1;
var mediaElement2;
....
mediaElement1 = getMediaElement(event.mediaElement, {
....
});
connection.videosContainer.appendChild(mediaElement1);
// And then use the 1st element as a reference to insertBefore:
....
connection.videosContainer.insertBefore(mediaElement2, mediaElement1);
您也可以使用Element.insert
代替.appendChild
:
Element.Insert(mediaElement, connection.videosContainer);
....
Element.Insert(mediaElement, connection.videosContainer);
在较大的窗口,后台的窗口,执行此操作:
mediaElement.style.zIndex = "1";
在较小的窗口,前面的窗口,执行此操作:
mediaElement.style.zIndex = "9999";
既然显示了这两个元素,并将它们设置为position:absolute
样式,您可以选择修改其top
和left
样式属性,以便将较小的视频窗口放置在您喜欢的位置更大的视频显示的顶部:
mediaElement.style.top = 10 + 'px';
mediaElement.style.left = 20 + 'px';