HTTP GET of a live Camera stream and display it in picture box

Question

I am having live url="http/ip:port/live.mp4?channel=0&type=0" Basically i want to get the live video stream(HTTP GET of live url) and display it in picture box. Program Blocks when i convert Stream to Bitmap.

 String url = String.Format("http://{0}/live.mp4?channel={1}&type={2}", ipAddress, channel, type); 
    Console.WriteLine(url);
    int read, total = 0;
    // Bitmap bmp = null;
    Uri uri = new Uri(url);
        var httpWebRequest = (HttpWebRequest)WebRequest.Create(uri);
        var credentialCache = new CredentialCache();
        credentialCache.Add(
        new Uri(uri.GetLeftPart(UriPartial.Authority)), // request url's host
        "Digest",  // authentication type 
        new NetworkCredential(nvtUserName, nvtPassword) // credentials 
);

        httpWebRequest.Credentials = credentialCache;
        // httpWebRequest.ContentType = "video/mp4";
        httpWebRequest.Method = "GET";
        httpWebRequest.Headers.Add("cookie", cookie);
        httpWebRequest.Headers.Add("X-csrftoken", strcsrftoken);
        //httpWebRequest.UserAgent = "spider/1.0";

        httpWebRequest.Method = "GET";
        Console.WriteLine(cookie);
        Console.WriteLine(strcsrftoken);

        var webResponse = (HttpWebResponse)httpWebRequest.GetResponse();
        Console.WriteLine("Status code={0}", (int)webResponse.StatusCode);
        //var stream = webResponse.GetResponseStream();
        //   bmp = (Bitmap)Bitmap.FromStream(stream);
        Stream output = new MemoryStream();
        using (Stream input = webResponse.GetResponseStream())
        {
            
            p.Image = Bitmap.FromStream(input); 
        }