CgwMonitorManage.Service.MonitorManageService.StartReceiveVideoByPipe C# (CSharp) Method

        public SmcErr StartReceiveVideoByPipe(string cameraNo, out string pipeName)
        {
            SmcErr err = new CgwError();
            NLogEx.LoggerEx logEx = new NLogEx.LoggerEx(log);
            pipeName = string.Empty;
            err = CheckSession(currentSessionID);
            //调任何接口前 需要判断监控平台是否加载成功
            if (err.IsSuccess())
            {
                err = VideoMonitorManage.Instance().StartReceiveVideo(cameraNo);

                //开始监控平台成功、开始通过管道发送数据
                if (err.IsSuccess())
                {
                    VideoPipeManage.Instance().DeleteVideoPipe(cameraNo);
                    VideoPipe videoPipe = VideoPipeManage.Instance().AddVideoPipe(cameraNo);
                    if (videoPipe != null)
                    {
                        pipeName = videoPipe.PipeName;
                        videoPipe.Run();

                        logEx.Info("MonitorManageService StartReceiveVideoByPipe  Successful,Current Cgw IP is : {0}", CgwConst.ClientIp);
                    }
                    else
                    {
                        logEx.Error("MonitorManageService AddVideoPipe failed.cameraNo = {0}", cameraNo);
                        err.SetErrorNo(CgwError.START_RECEIVE_VIDEO_FAILED);
                        StopReceiveVideoByPipe(cameraNo);
                    }
                }
                else
                {
                    logEx.Error("MonitorManageService StartReceiveVideoByPipe failed,ErrNo :{0}", err.ErrNo);
                }
            }
            else
            {
                logEx.Error("MonitorManageService StartReceiveVideoByPipe failed,ErrNo :{0}", err.ErrNo);
            }
            return err;
        }