用于视频广播的 WPF 应用程序

我有一个使用 Microsoft.expression.encoder 和框架 4.0 广播视频的 WPF 应用程序，但在广播时我遇到了 15 秒的延迟。是否有任何建议可以减少广播时的延迟。

以下是代码

using Microsoft.Expression.Encoder.Live; 
using Microsoft.Expression.Encoder;
private void button1_Click(object sender, RoutedEventArgs e)
{ 
    try 
    { 
        EncoderDevice video = null; 
        EncoderDevice audio = null;
        GetSelectedVideoAndAudioDevices(out video, out audio);
        StopJob();
        if (video == null)
        {
            return;
        }
        StopJob();
        _job = new LiveJob();
        if (video != null && audio != null)
        {
            //StopJob();
            _deviceSource = null;
            _deviceSource = _job.AddDeviceSource(video, audio);
            _job.ActivateSource(_deviceSource);
            // Finds and applys a smooth streaming preset        
            //_job.ApplyPreset(LivePresets.VC1HighSpeedBroadband4x3);
            // Creates the publishing format for the job
            PullBroadcastPublishFormat format = new PullBroadcastPublishFormat();
            format.BroadcastPort = 9090;
            format.MaximumNumberOfConnections = 50;
            // Adds the publishing format to the job
            _job.PublishFormats.Add(format);
            // Starts encoding
            _job.StartEncoding();
        }
        //webCamCtrl.StartCapture();
    }
    catch (Exception ex)
    {
        WriteLogFile(this.GetType().Name, "button1_Click", ex.Message.ToString());
    }
}

我正在使用MediaElement在我的服务器和客户端系统上显示网络摄像头。

在客户端

try
            {
                theMainWindow.getServerIPAddress();
                IP = theMainWindow.machineIP;
                MediaElement1.Source = new Uri("http://" + IP + ":9090/");
            }
            catch (Exception ex)
            {
            }