สอบถามเรื่องการถ่ายภาพจากกล้อง cctv หรือ ip camera มีวิธีดีกว่า web request url ไหม

 private void Snapshot(string url, string username_cctv, string password_cctv, string NamePhoto)
        {
            byte[] buffer = new byte[1280 * 800];
            int read, total = 0;
            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);         
            {
                req.Credentials = new NetworkCredential(username_cctv, password_cctv);
                WebResponse resp = req.GetResponse();
                Stream stream = resp.GetResponseStream();

                while ((read = stream.Read(buffer, total, 1000)) != 0)
                {
                    total += read;
                }
                Bitmap bmp = (Bitmap)Bitmap.FromStream(new MemoryStream(buffer, 0, total));
                bmp = new Bitmap(bmp, new Size(1000, 750));
                Image image = (Image)bmp;

                byte[] data;

                using (var memoryStream = new MemoryStream())
                {
                    image.Save(memoryStream, ImageFormat.Jpeg);

                    data = memoryStream.ToArray();
                }
                GetSetting_Parking GTP = new GetSetting_Parking(dbConnection);
                string[] getconfig = GTP.GetConfig_Serv();
                FTPHelper ftpHelper = new FTPHelper("ftp://" + getconfig[0], getconfig[1], getconfig[2]);
                ftpHelper.Upload(new MemoryStream(data), NamePhoto + ".jpeg");
            }                
        }