Agora视频呼叫Webrtc do react和laravel的展示

Question

我正在研究React和Laravel项目，我想在视频通话中实施用户互相呼叫和联合的能力。我已经按照他们的文档指示实现了所有代码，并且我使用Laravel后端来生成令牌。显然，一切都起作用了，我没有任何错误。但是，我的相机打开了，但是在屏幕上没有显示本地流（视频）。我怀疑我的React代码有问题：

import React, { useEffect, useState, useRef } from "react";
import { connect } from "react-redux";
import Echo from "laravel-echo";
import axios from "axios";
import AgoraRTC from "agora-rtc-sdk";
import styles from "./css/settingspace.module.css";

const AGORA_ID = "my app id copyed from agora website";

const VideoCallPage = (props) => {
  const [agoraConnection, setAgoraConnection] = useState({
    callPlaced: false,
    mutedAudio: false,
    mutedVideo: false,
    userOnlineChannel: null,
    onlineUsers: [],
    incomingCall: false,
    incomingCaller: "",
    agoraChannel: null,
  });

  const client = useRef(null);
  const localStream = useRef(null);

  useEffect(() => {
    const initUserOnlineChannel = () => {
      console.log("Initiate User Online Channel");
      setAgoraConnection((prevAgoraConnection) => ({
        ...prevAgoraConnection,
        userOnlineChannel: window.Echo.join("agora-online-channel"),
      }));
      console.log("Initiate User Online Channel - Finished");
    };

    const initUserOnlineListeners = () => {
      console.log("Initiate User Online Listeners");
      agoraConnection.userOnlineChannel.here((users) => {
        setAgoraConnection((prevAgoraConnection) => ({
          ...prevAgoraConnection,
          onlineUsers: users,
        }));
      });
      agoraConnection.userOnlineChannel.joining((user) => {
        // check user availability
        const joiningUserIndex = agoraConnection.onlineUsers.findIndex(
          (data) => data.id === user.id
        );
        if (joiningUserIndex < 0) {
          setAgoraConnection((prevAgoraConnection) => ({
            ...prevAgoraConnection,
            onlineUsers: [...agoraConnection.onlineUsers, user],
          }));
        }
      });
      agoraConnection.userOnlineChannel.leaving((user) => {
        const leavingUserIndex = agoraConnection.onlineUsers.findIndex(
          (data) => data.id === user.id
        );
        setAgoraConnection((prevAgoraConnection) => ({
          ...prevAgoraConnection,
          onlineUsers: prevAgoraConnection.onlineUsers.splice(
            leavingUserIndex,
            1
          ),
        }));
      });
      // listen to incoming call
      agoraConnection.userOnlineChannel.listen("MakeAgoraCall", ({ data }) => {
        console.log("Incoming call");
        if (parseInt(data.userToCall) === parseInt(props.user.id)) {
          const callerIndex = agoraConnection.onlineUsers.findIndex(
            (user) => user.id === data.from
          );
          // the channel that was sent over to the user being called is what
          // the receiver will use to join the call when accepting the call.
          setAgoraConnection((prevAgoraConnection) => ({
            ...prevAgoraConnection,
            incomingCaller: agoraConnection.onlineUsers[callerIndex]["name"],
            incomingCall: true,
            agoraChannel: data.channelName,
          }));
        }
      });
    };

    initUserOnlineChannel();
    if (agoraConnection.userOnlineChannel) {
      initUserOnlineListeners();
    }
  }, [
    agoraConnection.onlineUsers,
    agoraConnection.userOnlineChannel,
    props.user.id,
  ]);

  const placeCall = async (id, calleeId) => {
    try {
      // channelName = the caller's and the callee's id. you can use anything. tho.
      const channelName = `${props.user.id}_${calleeId}`;
      const tokenRes = await generateToken(channelName);
      // Broadcasts a call event to the callee and also gets back the token
      await axios.post("api/agora/call-user", {
        user_to_call: id,
        channel_name: channelName,
      });
      initializeAgora();
      joinRoom(tokenRes.data, channelName);
    } catch (error) {
      console.log(error);
    }
  };

  const acceptCall = async () => {
    initializeAgora();
    const tokenRes = await generateToken(agoraConnection.agoraChannel);
    joinRoom(tokenRes.data, agoraConnection.agoraChannel);
    setAgoraConnection({
      ...agoraConnection,
      incomingCall: false,
      callPlaced: true,
    });
  };

  const declineCall = () => {
    // You can send a request to the caller to
    // alert them of rejected call
    setAgoraConnection({
      incomingCall: false,
    });
  };

  const generateToken = (channelName) => {
    return axios.post("api/agora/token", {
      channelName,
    });
  };

  const initializeAgora = () => {
    client.current = AgoraRTC.createClient({ mode: "rtc", codec: "vp8" });
    client.current.init(
      AGORA_ID,
      () => {
        console.log("AgoraRTC client initialized");
      },
      (err) => {
        console.log("AgoraRTC client init failed", err);
      }
    );
  };

  const joinRoom = async (token, channel) => {
    client.current.join(
      token,
      channel,
      props.user.id,
      (uid) => {
        console.log("User " + uid + " join channel successfully");
        setAgoraConnection({ ...agoraConnection, callPlaced: true });
        createLocalStream();
        initializedAgoraListeners();
      },
      (err) => {
        console.log("Join channel failed", err);
      }
    );
  };

  const initializedAgoraListeners = () => {
    //   Register event listeners
    client.current.on("stream-published", function (evt) {
      console.log("Publish local stream successfully");
      console.log(evt);
    });
    //subscribe remote stream
    client.current.on("stream-added", ({ stream }) => {
      console.log("New stream added: " + stream.getId());
      client.current.subscribe(stream, function (err) {
        console.log("Subscribe stream failed", err);
      });
    });
    client.current.on("stream-subscribed", (evt) => {
      // Attach remote stream to the remote-video div
      evt.stream.play("remote-video");
      client.current.publish(evt.stream);
    });
    client.current.on("stream-removed", ({ stream }) => {
      console.log(String(stream.getId()));
      stream.close();
    });
    client.current.on("peer-online", (evt) => {
      console.log("peer-online", evt.uid);
    });
    client.current.on("peer-leave", (evt) => {
      var uid = evt.uid;
      var reason = evt.reason;
      console.log("remote user left ", uid, "reason: ", reason);
    });
    client.current.on("stream-unpublished", (evt) => {
      console.log(evt);
    });
  };

  const createLocalStream = () => {
    localStream.current = AgoraRTC.createStream({
      audio: true,
      video: true,
    });
    // Initialize the local stream
    localStream.current.init(
      () => {
        // Play the local stream
        localStream.current.play("me");
        console.log("Local stream played");
        // Publish the local stream
        client.current.publish(localStream.current, (err) => {
          console.log("publish local stream", err);
        });
      },
      (err) => {
        console.log(err);
      }
    );
  };

  const endCall = () => {
    localStream.current.close();
    client.current.leave(
      () => {
        console.log("Leave channel successfully");
        setAgoraConnection({
          ...agoraConnection,
          callPlaced: false,
        });
      },
      (err) => {
        console.log("Leave channel failed");
      }
    );
  };

  const handleAudioToggle = () => {
    if (agoraConnection.mutedAudio) {
      localStream.current.unmuteAudio();
      setAgoraConnection({
        ...agoraConnection,
        mutedAudio: false,
      });
    } else {
      localStream.current.muteAudio();
      setAgoraConnection({
        ...agoraConnection,
        mutedAudio: true,
      });
    }
  };

  const handleVideoToggle = () => {
    if (agoraConnection.mutedVideo) {
      localStream.current.unmuteVideo();
      setAgoraConnection({
        ...agoraConnection,
        mutedVideo: false,
      });
    } else {
      localStream.current.muteVideo();
      setAgoraConnection({
        ...agoraConnection,
        mutedVideo: true,
      });
    }
  };

  return (
    <div className="mt-5">
      <div>
        <button
          type="button"
          className="btn btn-primary"
          onClick={() => placeCall(4, 4)}
        >
          Call
        </button>
      </div>
      {agoraConnection.incomingCall && (
        <div className="row my-5">
          <div className="col-12">
            <p>
              Incoming Call From{" "}
              <strong>{agoraConnection.incomingCaller}</strong>
            </p>
            <div className="btn-group" role="group">
              <button
                type="button"
                className="btn btn-danger"
                data-dismiss="modal"
                onClick={() => declineCall()}
              >
                Decline
              </button>
              <button
                type="button"
                className="btn btn-success ml-5"
                onClick={() => acceptCall()}
              >
                Accept
              </button>
            </div>
          </div>
        </div>
      )}

      {agoraConnection.callPlaced && (
        <section id="video-container">
          <div id="me"></div>
          <div id="remote-video"></div>

          <div className="action-btns">
            <button
              type="button"
              className="btn btn-info"
              onClick={() => handleAudioToggle()}
            >
              {agoraConnection.mutedAudio ? "Unmute" : "Mute"}
            </button>
            <button
              type="button"
              className="btn btn-primary mx-4"
              onClick={() => handleVideoToggle()}
            >
              {agoraConnection.mutedVideo ? "ShowVideo" : "HideVideo"}
            </button>
            <button
              type="button"
              className="btn btn-danger"
              onClick={() => endCall()}
            >
              EndCall
            </button>
          </div>
        </section>
      )}
    </div>
  );
};

const mapStateToProps = (state) => {
  return {
    user: state.auth,
  };
};

export default connect(mapStateToProps)(VideoCallPage);

在我打个电话后，我说我的网络相机启动了应显示我本地流的位置，但没有实际流：

我真的没有其他想法如何解决此问题。

Answer 1

在大多数情况下，AgorARTC在两个Divs中插入HTML视频元素（第一div是TrackID，第二个DIV是视频元素包装器），您需要为此元素进行样式，因为它们具有宽度0px＆amp; Heigth 0px，检查检查员，您还可以使用从Agora-RTC导入的Agoravideoplayer组件，也需要样式