[英]WebRTC connectionState stuck at "new" - Safari only, works in Chrome and FF
我無法使用 WebRTC 視頻和音頻遠程連接到本地對等方。 此問題僅發生在桌面上的 Safari 和 iOS 中。 在 Chrome 和 Firefox 上,該問題不存在。
我假設這與 Safari 中的事實有關,它總是詢問您是否要允許音頻/視頻,但我不確定。 這只是我可以在瀏覽器之間做出的唯一區別。 即使選擇“允許”后,問題仍然存在。
復制步驟:
結果:
new
。 請參閱以下 RTCPeerConnection object:這是完全相同的 object,通過完全相同的步驟,但在 Chrome 或 Firefox 中:
編輯:
經過更多測試,我發現以下內容:
以下格式:(第一次連接)>(第二次連接)
鉻 > 鉻:作品
鉻 > Firefox:工作
鉻 > Safari:不起作用
Safari > 鉻:工作
Safari > Safari:工作
將 Safari 用於連接的兩側時,該問題似乎不存在......僅當 Safari 用作輔助連接時。
這是我的代碼:
import h from './helpers.js';
document.getElementById('close-chat').addEventListener('click', (e) => {
document.querySelector('#right').style.display = "none";
});
document.getElementById('open-chat').addEventListener('click', (e) => {
document.querySelector('#right').style.display = "flex";
});
window.addEventListener('load', () => {
sessionStorage.setItem('connected', 'false');
const room = h.getParam('room');
const user = h.getParam('user');
sessionStorage.setItem('username', user);
const username = sessionStorage.getItem('username');
if (!room) {
document.querySelector('#room-create').attributes.removeNamedItem('hidden');
}
else if (!username) {
document.querySelector('#username-set').attributes.removeNamedItem('hidden');
}
else {
let commElem = document.getElementsByClassName('room-comm');
for (let i = 0; i < commElem.length; i++) {
commElem[i].attributes.removeNamedItem('hidden');
}
var pc = [];
let socket = io('/stream');
var socketId = '';
var myStream = '';
var screen = '';
// Get user video by default
getAndSetUserStream();
socket.on('connect', () => {
console.log('Connected');
sessionStorage.setItem('remoteConnected', 'false');
h.connectedChat();
setTimeout(h.establishingChat, 3000);
setTimeout(h.oneMinChat, 60000);
setTimeout(h.twoMinChat, 120000);
setTimeout(h.threeMinChat, 180000);
setTimeout(h.fourMinChat, 240000);
setTimeout(h.fiveMinChat, 300000);
// Set socketId
socketId = socket.io.engine.id;
socket.emit('subscribe', {
room: room,
socketId: socketId
});
socket.on('new user', (data) => {
// OG user gets log when new user joins here.
console.log('New User');
console.log(data);
socket.emit('newUserStart', { to: data.socketId, sender: socketId });
pc.push(data.socketId);
init(true, data.socketId);
});
socket.on('newUserStart', (data) => {
console.log('New User Start');
console.log(data);
pc.push(data.sender);
init(false, data.sender);
});
socket.on('ice candidates', async (data) => {
console.log('Ice Candidates:');
console.log(data);
data.candidate ? await pc[data.sender].addIceCandidate(new RTCIceCandidate(data.candidate)) : '';
});
socket.on('sdp', async (data) => {
console.log('SDP:');
console.log(data);
if (data.description.type === 'offer') {
data.description ? await pc[data.sender].setRemoteDescription(new RTCSessionDescription(data.description)) : '';
h.getUserFullMedia().then(async (stream) => {
if (!document.getElementById('local').srcObject) {
h.setLocalStream(stream);
}
// Save my stream
myStream = stream;
stream.getTracks().forEach((track) => {
pc[data.sender].addTrack(track, stream);
});
let answer = await pc[data.sender].createAnswer();
await pc[data.sender].setLocalDescription(answer);
socket.emit('sdp', { description: pc[data.sender].localDescription, to: data.sender, sender: socketId });
}).catch((e) => {
console.error(e);
});
}
else if (data.description.type === 'answer') {
await pc[data.sender].setRemoteDescription(new RTCSessionDescription(data.description));
}
});
socket.on('chat', (data) => {
h.addChat(data, 'remote');
});
});
function getAndSetUserStream() {
console.log('Get and set user stream.');
h.getUserFullMedia({ audio: true, video: true }).then((stream) => {
// Save my stream
myStream = stream;
h.setLocalStream(stream);
}).catch((e) => {
console.error(`stream error: ${e}`);
});
}
function sendMsg(msg) {
let data = {
room: room,
msg: msg,
sender: username
};
// Emit chat message
socket.emit('chat', data);
// Add localchat
h.addChat(data, 'local');
}
function init(createOffer, partnerName) {
console.log('P1:');
console.log(partnerName);
pc[partnerName] = new RTCPeerConnection(h.getIceServer());
console.log('P2:');
console.log(pc[partnerName]);
if (screen && screen.getTracks().length) {
console.log('Screen:');
console.log(screen);
screen.getTracks().forEach((track) => {
pc[partnerName].addTrack(track, screen); // Should trigger negotiationneeded event
});
}
else if (myStream) {
console.log('myStream:');
console.log(myStream);
myStream.getTracks().forEach((track) => {
pc[partnerName].addTrack(track, myStream); // Should trigger negotiationneeded event
});
}
else {
h.getUserFullMedia().then((stream) => {
console.log('Stream:');
console.log(stream);
// Save my stream
myStream = stream;
stream.getTracks().forEach((track) => {
console.log('Tracks:');
console.log(track);
pc[partnerName].addTrack(track, stream); // Should trigger negotiationneeded event
});
h.setLocalStream(stream);
}).catch((e) => {
console.error(`stream error: ${e}`);
});
}
// Create offer
if (createOffer) {
console.log('Create Offer');
pc[partnerName].onnegotiationneeded = async () => {
let offer = await pc[partnerName].createOffer();
console.log('Offer:');
console.log(offer);
await pc[partnerName].setLocalDescription(offer);
console.log('Partner Details:');
console.log(pc[partnerName]);
socket.emit('sdp', { description: pc[partnerName].localDescription, to: partnerName, sender: socketId });
};
}
// Send ice candidate to partnerNames
pc[partnerName].onicecandidate = ({ candidate }) => {
console.log('Send ICE Candidates:');
console.log(candidate);
socket.emit('ice candidates', { candidate: candidate, to: partnerName, sender: socketId });
};
// Add
pc[partnerName].ontrack = (e) => {
console.log('Adding partner video...');
let str = e.streams[0];
if (document.getElementById(`${partnerName}-video`)) {
document.getElementById(`${partnerName}-video`).srcObject = str;
}
else {
// Video elem
let newVid = document.createElement('video');
newVid.id = `${partnerName}-video`;
newVid.srcObject = str;
newVid.autoplay = true;
newVid.className = 'remote-video';
newVid.playsInline = true;
newVid.controls = true;
// Put div in main-section elem
document.getElementById('left').appendChild(newVid);
const video = document.getElementsByClassName('remote-video');
}
};
pc[partnerName].onconnectionstatechange = (d) => {
console.log('Connection State:');
console.log(pc[partnerName].iceConnectionState);
switch (pc[partnerName].iceConnectionState) {
case 'new':
console.log('New connection...!');
break;
case 'checking':
console.log('Checking connection...!');
break;
case 'connected':
console.log('Connected with dispensary!');
sessionStorage.setItem('remoteConnected', 'true');
h.establishedChat();
break;
case 'disconnected':
console.log('Disconnected');
sessionStorage.setItem('connected', 'false');
sessionStorage.setItem('remoteConnected', 'false');
h.disconnectedChat();
h.closeVideo(partnerName);
break;
case 'failed':
console.log('Failed');
sessionStorage.setItem('connected', 'false');
sessionStorage.setItem('remoteConnected', 'false');
h.disconnectedChat();
h.closeVideo(partnerName);
break;
case 'closed':
console.log('Closed');
sessionStorage.setItem('connected', 'false');
sessionStorage.setItem('remoteConnected', 'false');
h.disconnectedChat();
h.closeVideo(partnerName);
break;
}
};
pc[partnerName].onsignalingstatechange = (d) => {
switch (pc[partnerName].signalingState) {
case 'closed':
console.log("Signalling state is 'closed'");
h.closeVideo(partnerName);
break;
}
};
}
// Chat textarea
document.getElementById('chat-input').addEventListener('keypress', (e) => {
if (e.which === 13 && (e.target.value.trim())) {
e.preventDefault();
sendMsg(e.target.value);
setTimeout(() => {
e.target.value = '';
}, 50);
}
});
}
});
從失敗(卡在“新”狀態)Safari 運行中查看控制台日志會很有幫助。
一種可能性是 Safari 沒有進行完整的冰候選人收集。 正如 Phillip Hancke 所指出的,看到 SDP 將有助於確定這是否正在發生。 就像看到控制台日志一樣。 過去,Safari 有各種與候選人收集相關的怪癖和錯誤。
強制 Safari 收集候選人的一種方法是顯式設置offerToReceiveAudio
和offerToReceiveVideo
:
await pc[partnerName].createOffer({ offerToReceiveAudio: true, offerToReceiveVideo: true })
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