Basic video capture template

vidoe_cap_proc.cpp

#include <opencv2/highgui.hpp>
#include <opencv2/videoio.hpp>

int main(int argc, char** argv) {
  cv::VideoCapture cap(0);
  // cap.set(cv::CAP_PROP_FRAME_WIDTH, 1280);
  // cap.set(cv::CAP_PROP_FRAME_HEIGHT, 720);

  cv::Mat im;

  while (true) {
    cap >> im;
    if (im.empty()) break;


    cv::imshow("image", im);
    int key = cv::waitKey(1);
    if (key == 27) {
      break;
    }
  }


  return 0;
}