我已经设置了自己的turnserver，以防止发生跨域错误。当客户端需要使用TURN服务器而不是STUN时，没有视频馈送。然而，消息正在传递。My main.js (from WebRTC Development)
'use strict';
var isChannelReady = false;
var isInitiator = false;
var isStarted = false;
var localStream;
var pc;
var remoteStream;
var turnReady;
var pcConfig = {
'iceServers': [{
'url': 'brett@66.172.10.133',
'credential': 'thorn'
}]
};
// Set up audio and video regardless of what devices are present.
var sdpConstraints = {
'mandatory': {
'OfferToReceiveAudio': true,
'OfferToReceiveVideo': true
}
};
/////////////////////////////////////////////
var room = 'foo2';
// Could prompt for room name:
// room = prompt('Enter room name:');
var socket = io.connect();
if (room !== '') {
socket.emit('create or join', room);
console.log('Attempted to create or join room', room);
}
socket.on('created', function(room) {
console.log('Created room ' + room);
isInitiator = true;
});
socket.on('full', function(room) {
console.log('Room ' + room + ' is full');
});
socket.on('join', function (room){
console.log('Another peer made a request to join room ' + room);
console.log('This peer is the initiator of room ' + room + '!');
isChannelReady = true;
});
socket.on('joined', function(room) {
console.log('joined: ' + room);
isChannelReady = true;
});
socket.on('log', function(array) {
console.log.apply(console, array);
});
////////////////////////////////////////////////
function sendMessage(message) {
console.log('Client sending message: ', message);
socket.emit('message', message);
}
// This client receives a message
socket.on('message', function(message) {
console.log('Client received message:', message);
if (message === 'got user media') {
maybeStart();
} else if (message.type === 'offer') {
if (!isInitiator && !isStarted) {
maybeStart();
}
pc.setRemoteDescription(new RTCSessionDescription(message));
doAnswer();
} else if (message.type === 'answer' && isStarted) {
pc.setRemoteDescription(new RTCSessionDescription(message));
} else if (message.type === 'candidate' && isStarted) {
var candidate = new RTCIceCandidate({
sdpMLineIndex: message.label,
candidate: message.candidate
});
pc.addIceCandidate(candidate);
} else if (message === 'bye' && isStarted) {
handleRemoteHangup();
}
});
////////////////////////////////////////////////////
var localVideo = document.querySelector('#localVideo');
var remoteVideo = document.querySelector('#remoteVideo');
navigator.mediaDevices.getUserMedia({
audio: false,
video: true
})
.then(gotStream)
.catch(function(e) {
alert('getUserMedia() error: ' + e.name);
});
function gotStream(stream) {
console.log('Adding local stream.');
localVideo.src = window.URL.createObjectURL(stream);
localStream = stream;
sendMessage('got user media');
if (isInitiator) {
maybeStart();
}
}
var constraints = {
video: true
};
console.log('Getting user media with constraints', constraints);
if (location.hostname !== 'localhost') {
requestTurn(
'https://computeengineondemand.appspot.com/turn?username=41784574&key=4080218913'
);
}
function maybeStart() {
console.log('>>>>>>> maybeStart() ', isStarted, localStream, isChannelReady);
if (!isStarted && typeof localStream !== 'undefined' && isChannelReady) {
console.log('>>>>>> creating peer connection');
createPeerConnection();
pc.addStream(localStream);
isStarted = true;
console.log('isInitiator', isInitiator);
if (isInitiator) {
doCall();
}
}
}
window.onbeforeunload = function() {
sendMessage('bye');
};
/////////////////////////////////////////////////////////
function createPeerConnection() {
try {
pc = new RTCPeerConnection(null);
pc.onicecandidate = handleIceCandidate;
pc.onaddstream = handleRemoteStreamAdded;
pc.onremovestream = handleRemoteStreamRemoved;
console.log('Created RTCPeerConnnection');
} catch (e) {
console.log('Failed to create PeerConnection, exception: ' + e.message);
alert('Cannot create RTCPeerConnection object.');
return;
}
}
function handleIceCandidate(event) {
console.log('icecandidate event: ', event);
if (event.candidate) {
sendMessage({
type: 'candidate',
label: event.candidate.sdpMLineIndex,
id: event.candidate.sdpMid,
candidate: event.candidate.candidate
});
} else {
console.log('End of candidates.');
}
}
function handleRemoteStreamAdded(event) {
console.log('Remote stream added.');
remoteVideo.src = window.URL.createObjectURL(event.stream);
remoteStream = event.stream;
}
function handleCreateOfferError(event) {
console.log('createOffer() error: ', event);
}
function doCall() {
console.log('Sending offer to peer');
pc.createOffer(setLocalAndSendMessage, handleCreateOfferError);
}
function doAnswer() {
console.log('Sending answer to peer.');
pc.createAnswer().then(
setLocalAndSendMessage,
onCreateSessionDescriptionError
);
}
function setLocalAndSendMessage(sessionDescription) {
// Set Opus as the preferred codec in SDP if Opus is present.
// sessionDescription.sdp = preferOpus(sessionDescription.sdp);
pc.setLocalDescription(sessionDescription);
console.log('setLocalAndSendMessage sending message', sessionDescription);
sendMessage(sessionDescription);
}
function onCreateSessionDescriptionError(error) {
trace('Failed to create session description: ' + error.toString());
}
function requestTurn(turnURL) {
pcConfig.iceServers.push({
'url': 'turn:brett@66.172.10.133',
'credential': 'thorn'
});
turnReady = true;
}
function handleRemoteStreamAdded(event) {
console.log('Remote stream added.');
remoteVideo.src = window.URL.createObjectURL(event.stream);
remoteStream = event.stream;
}
function handleRemoteStreamRemoved(event) {
console.log('Remote stream removed. Event: ', event);
}
function hangup() {
console.log('Hanging up.');
stop();
sendMessage('bye');
}
function handleRemoteHangup() {
console.log('Session terminated.');
stop();
isInitiator = false;
}
function stop() {
isStarted = false;
// isAudioMuted = false;
// isVideoMuted = false;
pc.close();
pc = null;
}
///////////////////////////////////////////
// Set Opus as the default audio codec if it's present.
function preferOpus(sdp) {
var sdpLines = sdp.split('rn');
var mLineIndex;
// Search for m line.
for (var i = 0; i < sdpLines.length; i++) {
if (sdpLines[i].search('m=audio') !== -1) {
mLineIndex = i;
break;
}
}
if (mLineIndex === null) {
return sdp;
}
// If Opus is available, set it as the default in m line.
for (i = 0; i < sdpLines.length; i++) {
if (sdpLines[i].search('opus/48000') !== -1) {
var opusPayload = extractSdp(sdpLines[i], /:(d+) opus/48000/i);
if (opusPayload) {
sdpLines[mLineIndex] = setDefaultCodec(sdpLines[mLineIndex],
opusPayload);
}
break;
}
}
// Remove CN in m line and sdp.
sdpLines = removeCN(sdpLines, mLineIndex);
sdp = sdpLines.join('rn');
return sdp;
}
function extractSdp(sdpLine, pattern) {
var result = sdpLine.match(pattern);
return result && result.length === 2 ? result[1] : null;
}
// Set the selected codec to the first in m line.
function setDefaultCodec(mLine, payload) {
var elements = mLine.split(' ');
var newLine = [];
var index = 0;
for (var i = 0; i < elements.length; i++) {
if (index === 3) { // Format of media starts from the fourth.
newLine[index++] = payload; // Put target payload to the first.
}
if (elements[i] !== payload) {
newLine[index++] = elements[i];
}
}
return newLine.join(' ');
}
// Strip CN from sdp before CN constraints is ready.
function removeCN(sdpLines, mLineIndex) {
var mLineElements = sdpLines[mLineIndex].split(' ');
// Scan from end for the convenience of removing an item.
for (var i = sdpLines.length - 1; i >= 0; i--) {
var payload = extractSdp(sdpLines[i], /a=rtpmap:(d+) CN/d+/i);
if (payload) {
var cnPos = mLineElements.indexOf(payload);
if (cnPos !== -1) {
// Remove CN payload from m line.
mLineElements.splice(cnPos, 1);
}
// Remove CN line in sdp
sdpLines.splice(i, 1);
}
}
sdpLines[mLineIndex] = mLineElements.join(' ');
return sdpLines;
}
由于某种原因，除非在同一网络上，否则没有视频馈送(因此我怀疑没有与turn服务器联系)。另外，下面是我使用的html:
<!DOCTYPE html>
<html>
<head>
<title>Realtime communication with WebRTC</title>
<link rel="stylesheet" href="/css/main.css" />
</head>
<body>
<h1>Realtime communication with WebRTC</h1>
<div id="videos">
<video id="localVideo" autoplay muted></video>
<video id="remoteVideo" autoplay></video>
</div>
<script src="/socket.io/socket.io.js"></script>
<script src="js/lib/adapter.js"></script>
<script src="js/main.js"></script>
</body>
</html>
任何帮助都将不胜感激。
编辑:我已经设置了用户名和密码为:# Typically, the realm field must match the value of AuthenticationRealm
# defined in reTurnServer.config
#
# The state field (not case sensitive) can be one of:
#
# authorized (user authorized)
# refused (user denied access)
# restricted (for when bandwidth limiting is implemented)
#
# This file format is interchangeable with TurnServer.org's user database
#
# Comments can be inserted by starting a line with #
#
test:foobar:example.org:REFUSED
brett:thorn:66.172.10.133:AUTHORISED
我不明白为什么会有授权问题。
编辑:由于拼写错误的单词，授权问题已修复。但是，我在浏览器中看到了以下内容，仍然没有视频提要通过:
GET http://66.172.10.133:8080/socket.io/?EIO=3&transp...lling&t=1475036226795-4&sid=rlFY-bqt9vnv6S5FAAAA
200 OK
250ms
socket.io.js (line 2739)
Adding local stream.
main.js (line 109)
Client sending message: got user media
main.js (line 66)
>>>>>>> maybeStart() false LocalMediaStream { id="{0daeeab5-8929-40c8-b7ea-cf65028a5363}", currentTime=0, stop=stop(), more...} false
main.js (line 131)
Message from server: Client said: got user media
main.js (line 60)
Another peer made a request to join room foo2
main.js (line 49)
This peer is the initiator of room foo2!
main.js (line 50)
Client received message: got user media
main.js (line 72)
>>>>>>> maybeStart() false LocalMediaStream { id="{0daeeab5-8929-40c8-b7ea-cf65028a5363}", currentTime=9.666666666666666, stop=stop(), more...} true
main.js (line 131)
>>>>>> creating peer connection
main.js (line 133)
Created RTCPeerConnnection
main.js (line 156)
isInitiator true
main.js (line 137)
Sending offer to peer
main.js (line 189)
setLocalAndSendMessage sending message RTCSessionDescription { type="offer", sdp="v=0rno=mozilla...THIS_IS...e7-a980-692a3ea8198a}rn", toJSON=toJSON()}
main.js (line 205)
Client sending message: RTCSessionDescription { type="offer", sdp="v=0rno=mozilla...THIS_IS...e7-a980-692a3ea8198a}rn", toJSON=toJSON()}
main.js (line 66)
icecandidate event: icecandidate
main.js (line 165)
Client sending message: Object { type="candidate", label=0, id="sdparta_0", more...}
main.js (line 66)
icecandidate event: icecandidate
main.js (line 165)
Client sending message: Object { type="candidate", label=0, id="sdparta_0", more...}
main.js (line 66)
icecandidate event: icecandidate
main.js (line 165)
Client sending message: Object { type="candidate", label=0, id="sdparta_0", more...}
main.js (line 66)
icecandidate event: icecandidate
main.js (line 165)
Client sending message: Object { type="candidate", label=0, id="sdparta_0", more...}
main.js (line 66)
icecandidate event: icecandidate
main.js (line 165)
End of candidates.
main.js (line 174)
Message from server: Client said: Object { type="offer", sdp="v=0rno=mozilla...THIS_IS...e7-a980-692a3ea8198a}rn"}
main.js (line 60)
Message from server: Client said: Object { type="candidate", label=0, id="sdparta_0", more...}
main.js (line 60)
Message from server: Client said: Object { type="candidate", label=0, id="sdparta_0", more...}
main.js (line 60)
Message from server: Client said: Object { type="candidate", label=0, id="sdparta_0", more...}
main.js (line 60)
Message from server: Client said: Object { type="candidate", label=0, id="sdparta_0", more...}
main.js (line 60)
Client received message: Object { type="answer", sdp="v=0rno=- 679697878549041...69f-968e-efbdb26e287crn"}
main.js (line 72)
Remote stream added.
main.js (line 223)
Client received message: Object { type="candidate", label=0, id="sdparta_0", more...}
main.js (line 72)
Client received message: Object { type="candidate", label=0, id="sdparta_0", more...}
main.js (line 72)
ICE failed, see about:webrtc for more details
另外，我在连接日志中得到这个(关于:webrtc):
(registry/INFO) insert 'ice' (registry) succeeded: ice
(registry/INFO) insert 'ice.pref' (registry) succeeded: ice.pref
(registry/INFO) insert 'ice.pref.type' (registry) succeeded: ice.pref.type
(registry/INFO) insert 'ice.pref.type.srv_rflx' (UCHAR) succeeded: 0x64
(registry/INFO) insert 'ice.pref.type.peer_rflx' (UCHAR) succeeded: 0x6e
(registry/INFO) insert 'ice.pref.type.host' (UCHAR) succeeded: 0x7e
(registry/INFO) insert 'ice.pref.type.relayed' (UCHAR) succeeded: 0x05
(registry/INFO) insert 'ice.pref.type.srv_rflx_tcp' (UCHAR) succeeded: 0x63
(registry/INFO) insert 'ice.pref.type.peer_rflx_tcp' (UCHAR) succeeded: 0x6d
(registry/INFO) insert 'ice.pref.type.host_tcp' (UCHAR) succeeded: 0x7d
(registry/INFO) insert 'ice.pref.type.relayed_tcp' (UCHAR) succeeded: 0x00
(registry/INFO) insert 'stun' (registry) succeeded: stun
(registry/INFO) insert 'stun.client' (registry) succeeded: stun.client
(registry/INFO) insert 'stun.client.maximum_transmits' (UINT4) succeeded: 7
(registry/INFO) insert 'ice.trickle_grace_period' (UINT4) succeeded: 5000
(registry/INFO) insert 'ice.tcp' (registry) succeeded: ice.tcp
(registry/INFO) insert 'ice.tcp.so_sock_count' (INT4) succeeded: 0
(registry/INFO) insert 'ice.tcp.listen_backlog' (INT4) succeeded: 10
(registry/INFO) insert 'ice.tcp.disable' (char) succeeded: 01
(ice/NOTICE) ICE(PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/)): peer (PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/):default) no streams with non-empty check lists
(ice/NOTICE) ICE(PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/)): peer (PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/):default) no streams with pre-answer requests
(ice/NOTICE) ICE(PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/)): peer (PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/):default) no checks to start
(ice/INFO) ICE-PEER(PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/):default)/CAND-PAIR(twON): setting pair to state FROZEN: twON|IP4:192.168.8.100:53095/UDP|IP4:10.76.93.143:51210/UDP(host(IP4:192.168.8.100:53095/UDP)|candidate:3063157045 1 udp 2122260223 10.76.93.143 51210 typ host generation 0)
(ice/INFO) ICE(PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/))/CAND-PAIR(twON): Pairing candidate IP4:192.168.8.100:53095/UDP (7e7f00ff):IP4:10.76.93.143:51210/UDP (7e7f1eff) priority=9115005270282354174 (7e7f00fffcfe3dfe)
(ice/INFO) ICE-PEER(PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/):default)/ICE-STREAM(0-1475043603256000 (id=48 url=http://66.172.10.133:8080/) aLevel=0): Starting check timer for stream.
(ice/INFO) ICE-PEER(PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/):default)/CAND-PAIR(twON): setting pair to state WAITING: twON|IP4:192.168.8.100:53095/UDP|IP4:10.76.93.143:51210/UDP(host(IP4:192.168.8.100:53095/UDP)|candidate:3063157045 1 udp 2122260223 10.76.93.143 51210 typ host generation 0)
(ice/INFO) ICE-PEER(PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/):default)/CAND-PAIR(twON): setting pair to state IN_PROGRESS: twON|IP4:192.168.8.100:53095/UDP|IP4:10.76.93.143:51210/UDP(host(IP4:192.168.8.100:53095/UDP)|candidate:3063157045 1 udp 2122260223 10.76.93.143 51210 typ host generation 0)
(ice/NOTICE) ICE(PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/)): peer (PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/):default) is now checking
(ice/WARNING) ICE(PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/)): Error parsing attribute: candidate:4162317765 1 tcp 1518280447 10.76.93.143 0 typ host tcptype active generation 0
(ice/WARNING) ICE-PEER(PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/):default): no pairs for 0-1475043603256000 (id=48 url=http://66.172.10.133:8080/) aLevel=0
(ice/INFO) ICE(PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/)): peer (PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/):default) Trickle grace period is over; marking every component with only failed pairs as failed.
(stun/INFO) STUN-CLIENT(twON|IP4:192.168.8.100:53095/UDP|IP4:10.76.93.143:51210/UDP(host(IP4:192.168.8.100:53095/UDP)|candidate:3063157045 1 udp 2122260223 10.76.93.143 51210 typ host generation 0)): Timed out
(ice/INFO) ICE-PEER(PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/):default)/CAND-PAIR(twON): setting pair to state FAILED: twON|IP4:192.168.8.100:53095/UDP|IP4:10.76.93.143:51210/UDP(host(IP4:192.168.8.100:53095/UDP)|candidate:3063157045 1 udp 2122260223 10.76.93.143 51210 typ host generation 0)
(ice/INFO) ICE-PEER(PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/):default)/STREAM(0-1475043603256000 (id=48 url=http://66.172.10.133:8080/) aLevel=0)/COMP(1): All pairs are failed, and grace period has elapsed. Marking component as failed.
(ice/INFO) ICE-PEER(PC:1475043603256000 (id=48 url=http://66.172.10.133:8080/):default): all checks completed success=0 fail=1
+++++++ END ++++++++
使用https://webrtc.github.io/samples/src/content/peerconnection/trickle-ice/检查您的TURN服务器如果您获得了一个中继候选对象，则您的TURN服务器可以工作。我只能看到srflx类型的候选项，这通常表明您的回合服务器可访问，但身份验证失败。
另外，在url字段中使用用户名和url而不是旧的user@host语法。