How to fix an error with connecting an IP camera using opencv in java?

Question

I downloaded the app to the IP camera phone and I want to get the video via opencv,but it gives an error

public class Main {
    static {System.loadLibrary(Core.NATIVE_LIBRARY_NAME);}
    public static void main(String[] args) {
        JFrame window = new JFrame();
        JLabel screen = new JLabel();
        window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        window.setVisible(true);


        VideoCapture camera = new VideoCapture("http://192.168.31.101:8080/video");
        Mat frame = new Mat();
        MatOfByte buf = new MatOfByte();
        ImageIcon ic;


        while (camera.grab()){
            camera.read(frame);

            Imgcodecs.imencode(".png",frame,buf);

            ic = new ImageIcon(buf.toArray());
            screen.setIcon(ic);
            window.setContentPane(screen);
            window.pack();

        }
        camera.release();
        window.dispatchEvent(new WindowEvent(window , WindowEvent.WINDOW_CLOSING));

    }

}

OpenCV(4.5.5) C:\build\master_winpack-bindings-win64-vc14-static\opencv\modules\videoio\src\cap_images.cpp:253: error: (-5:Bad argument) CAP_IMAGES: can't find starting number (in the name of file): http://192.168.31.101:8080/video in function 'cv::icvExtractPattern'

P.S. getBuildInformation

 OpenCV modules:
    To be built:                 calib3d core dnn features2d flann gapi highgui imgcodecs imgproc java ml objdetect photo python2 stitching video videoio
    Disabled:                    python3 world
    Disabled by dependency:      -
    Unavailable:                 ts
    Applications:                apps
    Documentation:               NO
    Non-free algorithms:         NO

  Windows RT support:            NO

  GUI:                           WIN32UI
    Win32 UI:                    YES
    VTK support:                 NO

  Media I/O: 
    ZLib:                        build (ver 1.2.11)
    JPEG:                        build-libjpeg-turbo (ver 2.1.2-62)
    WEBP:                        build (ver encoder: 0x020f)
    PNG:                         build (ver 1.6.37)
    TIFF:                        build (ver 42 - 4.2.0)
    JPEG 2000:                   build (ver 2.4.0)
    OpenEXR:                     build (ver 2.3.0)
    HDR:                         YES
    SUNRASTER:                   YES
    PXM:                         YES
    PFM:                         YES

  Video I/O:
    DC1394:                      NO
    FFMPEG:                      YES (prebuilt binaries)
      avcodec:                   YES (58.134.100)
      avformat:                  YES (58.76.100)
      avutil:                    YES (56.70.100)
      swscale:                   YES (5.9.100)
      avresample:                YES (4.0.0)
    GStreamer:                   NO
    DirectShow:                  YES
    Media Foundation:            YES
      DXVA:                      NO

  Parallel framework:            Concurrency

  Trace:                         YES (with Intel ITT)