WebRTC视频流在Firefox中可用,但在chrome中不可用 [英] WebRTC video streaming is working in firefox but not in chrome
问题描述
我正在使用webRTC制作一个简单的视频通话应用程序.一切都在Firefox中按预期工作.但是在Chrome和Opera中,远程流不会出现在任何一侧(呼叫者和被呼叫者).视频画布始终处于缓冲状态(和黑色).我已经在StackOverflow上浏览了与此相关的所有解决方案,但没有任何解决方案.我正在使用socket.io在对等之间进行信令和通信,其中有两个成员的空间,因此,我不需要选择任何特定的user_id进行任何调用(为简单起见).这是我的代码(简单版本):
I am making a simple video-calling app using webRTC. Everything is working as expected in firefox. But in chrome and opera the remote-stream is not showing up on any side(caller and callee).The video canvas is always buffering(and black). I have gone through every solution related to this on StackOverflow but nothing worked out.I am using socket.io for signalling and communication between peers.In which there is a room of two members in it.So, I don't need to select any specific user_id to make any call(for simplicity). Here is my code(simple version):
function ChatBox(props) {
const peerRef = useRef();
const mediaRef = useRef();
const displayRef = useRef();
const openMediaDevices = async () => {
var stream = await navigator.mediaDevices.getUserMedia({
video: true,
audio: true,
});
console.log("Got mediastream : ", stream);
console.log(mediaRef.current);
mediaRef.current.srcObject = stream;
return stream;
};
const iceCandidateEventHandler = (e) => {
console.log("candidate emit kori");
if (e.candidate) {
socket.emit("candidate", {
type: "new-ice-candidate",
candidate: e.candidate,
});
}
};
const newICECandidateHandler = async (data) => {
console.log("candidate pailam", data);
try {
const candidate = new RTCIceCandidate(data.candidate);
await peerRef.current.addIceCandidate(candidate);
} catch (error) {
console.log(error);
}
};
const negotiationNeededEventHandler = async () => {
console.log("offer pathacchi...");
try {
const offerObj = await peerRef.current.createOffer();
await peerRef.current.setLocalDescription(offerObj);
const data = {
type: "offer",
sdp: peerRef.current.localDescription,
};
socket.emit("offer", data);
} catch (error) {
console.log(error);
}
};
const offerHandler = async (data) => {
console.log("offer pailam...");
console.log(data);
try {
peerRef.current = createPeer();
const desc = new RTCSessionDescription(data.sdp);
await peerRef.current.setRemoteDescription(desc);
const localStream = await openMediaDevices();
for (const track of localStream.getTracks()) {
peerRef.current.addTrack(track, localStream);
}
const answerObj = await peerRef.current.createAnswer();
await peerRef.current.setLocalDescription(answerObj);
const ansData = {
type: "answer",
sdp: peerRef.current.localDescription,
};
console.log("answer pathacchi...");
socket.emit("answer", ansData);
} catch (error) {
console.log(error);
}
};
const answerHandler = async (ansData) => {
console.log("answer pailam");
console.log(ansData);
try {
const desc = new RTCSessionDescription(ansData.sdp);
await peerRef.current.setRemoteDescription(desc);
} catch (error) {
console.log(error);
}
};
const trackEventHandler = (e) => {
console.log(e.streams);
displayRef.current.srcObject = e.streams[0];
displayRef.current.autoplay = true;
displayRef.current.playsInline = true;
displayRef.current.muted = true;
};
const createPeer = () => {
const configuration = {
iceServers: [
{
urls: "stun:stun.stunprotocol.org",
},
{
urls: "turn:numb.viagenie.ca",
credential: "muazkh",
username: "webrtc@live.com",
},
],
};
const peerConnection = new RTCPeerConnection(configuration);
peerConnection.onicecandidate = iceCandidateEventHandler;
peerConnection.ontrack = trackEventHandler;
peerConnection.onnegotiationneeded = negotiationNeededEventHandler;
return peerConnection;
};
useEffect(() => {
socket.on("offer", (data) => offerHandler(data));
socket.on("answer", (ansData) => answerHandler(ansData));
socket.on("candidate", (data) => newICECandidateHandler(data));
}, []);
const callHandler = async () => {
peerRef.current = createPeer("caller");
const localStream = await openMediaDevices();
for (const track of localStream.getTracks()) {
peerRef.current.addTrack(track, localStream);
}
};
return (
<div className={styles.boxContainer}>
<video
ref={mediaRef}
id="localVideo"
autoplay
playsinline
controls="false"
/>
<video
ref={displayRef}
id="displayVideo"
autoplay
playsinline
controls="false"
/>
</div>
);
}
有没有人可以帮助我找出有关chrome的问题?
Is there anyone who can help me to find out the issue on chrome ?
推荐答案
在创建对等连接之前尝试请求用户媒体:
Try to request user media before creating peer connection:
useEffect(() => {
const getUserMedia = async () => {
const mediaConstraints = {
video: true,
audio: true,
};
try {
const stream = await navigator.mediaDevices.getUserMedia(
mediaConstraints,
);
localVideo.current.srcObject = stream;
} catch (error) {
console.error(error);
}
};
getUserMedia();
}, []);
此外,onnegotiationneeded
事件在您的代码中触发两次(在调用方和被调用方).您应该只在主叫方创建要约.
Also, the onnegotiationneeded
event fires twice in the your code (on caller and callee side). You should create offer only on the caller side.
https://developer.mozilla.org/en -US/docs/Web/API/RTCPeerConnection/onnegotiationneeded
这篇关于WebRTC视频流在Firefox中可用,但在chrome中不可用的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!