📅  最后修改于: 2023-12-03 15:31:18.859000             🧑  作者: Mango
WebRTC(Web Real-Time Communications)是一种使用Web浏览器和相应API来实现点对点(P2P)通信的开放源代码项目,它允许实时通信,例如视频音频通话和P2P文件共享等。HTML5-WebRTC是指使用HTML5和WebRTC技术来创建实时通信的应用程序。
WebRTC API包括三个主要部分:
<!DOCTYPE html>
<html>
<head>
<title>HTML5-WebRTC Demo</title>
</head>
<body>
<div class="video">
<video id="localVideo"></video>
<video id="remoteVideo"></video>
</div>
<div class="control">
<button id="startButton">Start Cam</button>
<button id="callButton">Start Call</button>
<button id="hangupButton">Hang Up</button>
</div>
<script>
var localVideo = document.getElementById('localVideo');
var remoteVideo = document.getElementById('remoteVideo');
var startButton = document.getElementById('startButton');
var callButton = document.getElementById('callButton');
var hangupButton = document.getElementById('hangupButton');
var localStream;
var remoteStream;
var pc;
var stunServer = {
'iceServers': [
{'url': 'stun:stun.l.google.com:19302'},
{'url': 'stun:stun1.l.google.com:19302'},
]
};
startButton.onclick=function() {
navigator.mediaDevices.getUserMedia({
audio: false,
video: true
})
.then(gotStream)
.catch(function(e) {
alert('getUserMedia() error: ' + e.name);
});
}
callButton.onclick = function() {
pc = new RTCPeerConnection(stunServer);
pc.addStream(localStream);
pc.onaddstream = function(event) {
remoteVideo.srcObject = event.stream;
}
pc.createOffer(setLocalAndSendMessage, function(){});
}
hangupButton.onclick = function() {
pc.close();
pc = null;
hangupButton.disabled = true;
}
function gotStream(stream) {
localVideo.srcObject = stream;
localStream = stream;
callButton.disabled = false;
startButton.disabled = true;
}
function setLocalAndSendMessage(sessionDescription) {
pc.setLocalDescription(sessionDescription);
}
</script>
</body>
</html>
HTML5-WebRTC是一个快速、高效、跨平台的实时通信技术,通过它可以创建强大的实时音频视频通话、屏幕共享等应用。我们可以使用MediaStream API、RTCPeerConnection API和RTCDataChannel API来实现WebRTC应用程序。由于WebRTC是一个开源项目,拥有强大的社区支持,因此我们可以预计,它将持续更新和发展,它将在未来成为Web应用程序中的一个永久标准。