0 
private void Recorder_ExecuteCode(object sender, EventArgs e)
    {
        fileName = "";
        SendMail = false;
        CallIsAlive = true;
        Recorder recorder = new Recorder();

        // Use the call ID as the filename and create a media sink.
        Random rnd = new Random();
        fileName = string.Format("C:\\recordings\\Inbound Call\\EmergencyCall {0}.wma", DateTime.Now.Day.ToString() + "." + DateTime.Now.Month.ToString() + "." + DateTime.Now.Year.ToString() + " - " + DateTime.Now.Hour.ToString() + "." + DateTime.Now.Minute.ToString() + "." + DateTime.Now.Second.ToString() + rnd.Next().ToString());
        WmaFileSink fileSink = new WmaFileSink(fileName);
        Console.WriteLine("Recording for 10 seconds.");

        // Set the recorder to use the media sink and attach
        // it to the flow.
        recorder.SetSink(fileSink);
        recorder.AttachFlow(Program.MyCall.Flow);


        // Start recording.

        recorder.Start();
        SendMail = true;
    }

上面的代码设置了一个附加到入站呼叫的音频视频流的记录器。

我遇到的问题是，如果同时有 2 个调用并尝试调用 Recorder_executeCode 函数，则程序在此处崩溃：

        recorder.AttachFlow(Program.MyCall.Flow);

Visual Studio 报告以下错误：

用户代码未处理 InvalidOperationException。AudioVideoFlow 已绑定到 Recorder。

如果两个或多个调用者同时调用，我将如何更改代码以允许函数的多个副本同时运行。

编辑

问题是由使用全局变量引起的：MyCall

我通过使用 Call.CallId 设置文件名字符串解决了这个问题

 private void Recorder_ExecuteCode(object sender, EventArgs e)
    {
        string fileName;
        SendMail = false;
        Recorder recorder = new Recorder();

        // Use the call ID as the filename and create a media sink.
        //Random rnd = new Random();
        fileName = string.Format("C:\\recordings\\Inbound Call\\EmergencyCall {0}.wma", acceptCallActivityInboundCall1.CallProvider.ToneController.AudioVideoFlow.Call.CallId.ToString());
        WmaFileSink fileSink = new WmaFileSink(fileName);
        Console.WriteLine("Recording for 10 seconds.");


        // Set the recorder to use the media sink and attach
        // it to the flow.
        recorder.SetSink(fileSink);
        recorder.AttachFlow(acceptCallActivityInboundCall1.CallProvider.ToneController.AudioVideoFlow);


        // Start recording.

        recorder.Start();
        SendMail = true;
    }
4

0 回答 0