TokBox Error: OT.Session: Cannot connect, the session is already undefined

Question

我遇到了类似的问题，但无法弄清楚这里发生了什么。我有一个 .Net 页面，其中包含用于订阅的所有 TokBox 方法。我启动了一个新的 window（多个流的视频监视器），初始化客户端，将它们的 clientSession 存储在一个数组中，并在页面上以网格模式显示订阅的流（在本例中，仅使用一个客户端） .每次打开页面时，我都会创建并初始化每个客户端会话：

lstSessions[i] = opener.initializeClientSession(apiKey, sessionId, token, $('Player'+i), 'subscribe');

在 Opener 页面中：

function initializeClientSession(apiKey, sessionId, token, container, myAction) {
var clientSession = OT.initSession(apiKey, sessionId);
console.log('initializeClientSession: ' + sessionId);

clientSession.connect(token, function (error) {
    if (error) {
        console.log("ERROR: initializeClientSession: " + myAction + " " + error);
    }
    else {
        console.log("clientSession connected: " + myAction + " " + clientSession.id);

        switch(myAction) {
            case "publish":
                publishClientVideo(clientSession, container);
                break;
            case "subscribe":
                subscribeClientVideo(clientSession, container);
                break;
            case "delay":
                if (inPVM) publishClientVideo(clientSession, container);
                break;
        }
    }
});
return clientSession;

}

function subscribeClientVideo(clientSession, container) {
console.log("subscribeClientVideo: " + container.id + " " + clientSession.id);

clientSession.on('streamCreated', function (event) {
    console.log("streamCreated: " + event.stream.id);
    clientSubscriber = clientSession.subscribe(event.stream, container, {
        insertMode: 'append',
        width: '100%',
        height: '100%'
    }, function (error) {
        if (error) {
            console.log("ERROR clientSession.subscribe: " + error);
        }
        else {
            console.log("Client subscribed: inPVM = " + inPVM);
        }
    });

});

}

我关闭视频监视器并取消订阅流：

function unsubscribeClientVideo(clientSession, container) {
    console.log("unsubscribeClientVideo: " + clientSession.id + " " + contianer.id);
    container.style.visibility = 'hidden';
    try {
        clientSession.unsubscribe(clientSubscriber);
    }
    catch (e) {
        console.log("ERROR unsubscribeClientVideo: " + e);
    }
}

我第一次打开“视频监视器”页面时，它工作正常。但是，当我第二次尝试时，出现错误 "OT.Session: Cannot connect, the session is already undefined"。从控制台日志我得到：

initializeClientSession: 2_MX40NTk1MjgxMn5-MTUwODA2NzU5NzcxNH55WVIzNXNtREpLREl0bHlUTGxhcWJBOFV-fg
clientSession connected: subscribe 2_MX40NTk1MjgxMn5-MTUwODA2NzU5NzcxNH55WVIzNXNtREpLREl0bHlUTGxhcWJBOFV-fg
subscribeClientVideo: videoPlayer0 2_MX40NTk1MjgxMn5-MTUwODA2NzU5NzcxNH55WVIzNXNtREpLREl0bHlUTGxhcWJBOFV-fg
streamCreated: e5ad9453-aa55-41ec-b150-d8dfd5b04875
Client subscribed: inPVM = true

第二次尝试：

initializeClientSession: 2_MX40NTk1MjgxMn5-MTUwODA2NzU5NzcxNH55WVIzNXNtREpLREl0bHlUTGxhcWJBOFV-fg
OT.Session: Cannot connect, the session is already undefined

我检查了 unsubscribeClientVideo 中的 clientSession，它说它已连接。实际客户端正常发布，没有任何错误或警告。那么，"SESSION" 怎么可能是未定义的呢？我还没有接触过我所知道的"session"。显然，这里有些东西我真的不明白。非常感谢任何帮助。

Answer 1

我猜警告“OT.Session：无法连接，会话已经未定义”有点误导。在您的 unsubscribeClientVideo 功能中，您所做的只是取消订阅订阅者的视频源之一，但实际上您仍然连接到会话。所以简而言之，您正在尝试连接到您已经通过运行 clientSession.connect() 函数两次连接到的会话。

TokBox Error: OT.Session: Cannot connect, the session is already undefined

TokBox Error: OT.Session: Cannot connect, the session is already undefined

javascript

session

stream

node.js

tokbox