How to get frames from c920 camera using OpenCV4 C++

Question

I'm trying to get frames form a Logitec c920 camera and show them. The camera seems to be working but nothing is being shown on the display window.

I tried to configure all the camera settings but nothing. What am I missing???

    #include "pch.h"
    #include <iostream>
    #include "opencv2\imgcodecs.hpp"
    #include "opencv2\core.hpp"
    #include "opencv2\highgui.hpp"
    #include "opencv2\videoio.hpp"

    using namespace std;
    using namespace cv;

    int main()
    {

        VideoCapture camera(CAP_ANY);

        Mat frame;
        namedWindow("x", WINDOW_AUTOSIZE);

        camera.set(CAP_PROP_FOURCC, VideoWriter::fourcc('M', 'J', 'P', 'G'));
        camera.set(CAP_PROP_FRAME_WIDTH, 1920);
        camera.set(CAP_PROP_FRAME_HEIGHT, 1080);


        while (1)
        {

            camera.read(frame);
            imshow("x", frame);

        }

        waitKey(0);
        return 0;

    }

Answer 1

You have to put waitKey(int delay) after each frame. Your while loop should look like this:

while (1)
    {

        camera.read(frame);
        imshow("x", frame);
        waitKey(1);

    }