/// <summary>
    /// 通过rtspUrl获取设备ID
    /// </summary>
    /// <param name="url"></param>
    /// <returns></returns>
    private int?GetCameraInfoId(string url)
    {
        //"rtsp://*****:*****@ 192.168.1.27:554/ch1/main/h264",
        if (string.IsNullOrEmpty(url))
        {
            return(null);
        }
        string[] ips = url.Split('@');
        if (ips == null || ips.Length < 2)
        {
            return(null);
        }
        string[] ipTemp = ips[1].Split(':');
        if (ipTemp == null || ipTemp.Length < 2)
        {
            return(null);
        }
        string ipFinal;

        ipFinal = ipTemp[0];
        if (string.IsNullOrEmpty(ipFinal))
        {
            return(null);
        }
        CommunicationObject service = CommunicationObject.Instance;

        if (service)
        {
            Dev_CameraInfo info = service.GetCameraInfoByIp(ipFinal);
            if (info != null)
            {
                return(info.DevInfoId);
            }
            else
            {
                return(null);
            }
        }
        return(null);
    }