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這是一個使用webrtc進行視頻通話的腳本，但從mozilla撥打電話時這不起作用，它只能從chrome撥到mozilla， 我認爲這是由於創建報價的約束一部分，但我無法找到如何對付它，我已經試過這樣：從Mozilla到Chrome的webrtc視頻通話只能在Chrome上運行
if (isFirefox) {
console.log('firefox');
constraints = {
offerToReceiveAudio: true,
offerToReceiveVideo: true
};
}
if (isChrome) {
console.log('chrome');
constraints = {
mandatory: {
OfferToReceiveAudio: true,
OfferToReceiveVideo: true
}
};
}
，但沒有結果。 感謝
<html>
<head>
< script type = 'text/javascript'
src = '/firebase.js' > < /script>
<script type='text/javascript
' src='/adapter.js '></script>
<style>#video,#otherPeer { width: 300px;}</style>
</head>
<body>
<video id="video" autoplay></video>
<video id="otherPeer" autoplay></video>
<script>
// get a reference to our FireBase database. You should create your own
// and replace the URL.
var dbRef = new Firebase("https://video-calling.firebaseio.com/");
var roomRef = dbRef.child("rooms");
// shims!
var PeerConnection = window.mozRTCPeerConnection || window.webkitRTCPeerConnection;
var SessionDescription = window.mozRTCSessionDescription || window.RTCSessionDescription;
var IceCandidate = window.mozRTCIceCandidate || window.RTCIceCandidate;
navigator.getUserMedia = navigator.getUserMedia || navigator.mozGetUserMedia || navigator.webkitGetUserMedia;
// generate a unique-ish string
function id() {
return (Math.random() * 10000 + 10000 | 0).toString();
}
// a nice wrapper to send data to FireBase
function send (room, key, data) {
roomRef.child(room).child(key).set(data);
}
// wrapper function to receive data from FireBase
function recv (room, type, cb) {
roomRef.child(room).child(type).on("value", function (snapshot, key) {
var data = snapshot.val();
if (data) { cb(data); }
});
}
// generic error handler
function errorHandler (err) {
console.error(err);
}
// determine what type of peer we are,
// offerer or answerer.
var ROOM = location.hash.substr(1);
var type = "answerer";
var otherType = "offerer";
// no room number specified, so create one
// which makes us the offerer
if (!ROOM) {
ROOM = id();
type = "offerer";
otherType = "answerer";
document.write("<a href='#
"+ROOM+"
'>Send link to other peer</a>");
}
// generate a unique-ish room number
var ME = id();
// options for the PeerConnection
var server = {
iceServers: [
{urls: "stun:23.21.150.121"},
{urls: "stun:stun.l.google.com:19302"},
{urls: "turn:numb.viagenie.ca", credential: "webrtcdemo", username: "louis%40mozilla.com"}
]
};
var options = {
optional: [
{DtlsSrtpKeyAgreement: true}
]
}
// create the PeerConnection
var pc = new PeerConnection(server, options);
pc.onicecandidate = function (e) {
// take the first candidate that isn'
t null
if (!e.candidate) {
return;
}
pc.onicecandidate = null;
// request the other peers ICE candidate
recv(ROOM, "candidate:" + otherType, function(candidate) {
pc.addIceCandidate(new IceCandidate(JSON.parse(candidate)));
});
// send our ICE candidate
send(ROOM, "candidate:" + type, JSON.stringify(e.candidate));
};
// grab the video elements from the document
var video = document.getElementById("video");
var video2 = document.getElementById("otherPeer");
// get the user's media, in this case just video
navigator.getUserMedia({
video: true
}, function(stream) {
// set one of the video src to the stream
video.src = URL.createObjectURL(stream);
// add the stream to the PeerConnection
pc.addStream(stream);
// now we can connect to the other peer
connect();
}, errorHandler);
// when we get the other peer's stream, add it to the second
// video element.
pc.onaddstream = function(e) {
video2.src = URL.createObjectURL(e.stream);
};
// constraints on the offer SDP. Easier to set these
// to true unless you don't want to receive either audio
// or video.
var isOpera = !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0;
// Opera 8.0+ (UA detection to detect Blink/v8-powered Opera)
var isFirefox = typeof InstallTrigger !== 'undefined'; // Firefox 1.0+
var isSafari = Object.prototype.toString.call(window.HTMLElement).indexOf('Constructor') > 0;
// At least Safari 3+: "[object HTMLElementConstructor]"
var isChrome = !!window.chrome && !isOpera; // Chrome 1+
var isIE = /*@[email protected]*/ false || !!document.documentMode; // At least IE6
/*var constraints;
if(isFirefox){
console.log('firefox');
constraints = {
offerToReceiveAudio: true,
offerToReceiveVideo: true
};
}
if(isChrome){
console.log('chrome');
constraints = {
mandatory: {
OfferToReceiveAudio: true,
OfferToReceiveVideo: true
}
};
*/
var constraints = {
mandatory: {
OfferToReceiveAudio: true,
OfferToReceiveVideo: true
}
};
// start the connection!
function connect() {
if (type === "offerer") {
// create the offer SDP
pc.createOffer(function(offer) {
pc.setLocalDescription(offer);
// send the offer SDP to FireBase
send(ROOM, "offer", JSON.stringify(offer));
// wait for an answer SDP from FireBase
recv(ROOM, "answer", function(answer) {
pc.setRemoteDescription(
new SessionDescription(JSON.parse(answer))
);
});
}, errorHandler, constraints);
} else {
// answerer needs to wait for an offer before
// generating the answer SDP
recv(ROOM, "offer", function(offer) {
pc.setRemoteDescription(
new SessionDescription(JSON.parse(offer))
);
// now we can generate our answer SDP
pc.createAnswer(function(answer) {
pc.setLocalDescription(answer);
// send it to FireBase
send(ROOM, "answer", JSON.stringify(answer));
}, errorHandler, constraints);
});
}
} < /script>
</body >
< /html>
您是否嘗試將'offerToReceiveAudio'設置爲小寫字母？現在它們都被接受了。 –
謝謝你幫助我，它有效（y），在 –
我會讓它成爲答案。 –