ocvov5645.cpp

// Using an OV5645 CSI camera module connected to a Dragonboard 410c using OpenCV


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

#include <iostream>
#include <string>

using namespace std;

int main()
{
    std::string pipeline =
    	std::string("v4l2src device=/dev/video0 num-buffers=1 ! ") +
	std::string("video/x-raw,format=UYVY,width=1920,height=1080 ! ") +
	std::string("videoconvert ! ") +
	std::string("appsink ");

    std::cout << "Using pipeline: \n\t" << pipeline << "\n";

    cv::VideoCapture cap(pipeline, cv::CAP_GSTREAMER);
    if(!cap.isOpened())
    {
    	std::cout<<"Failed to open camera."<<std::endl;
    	return (-1);
    }

    cv::namedWindow("CSI Camera", cv::WINDOW_AUTOSIZE);
    cv::Mat img;

    std::cout << "Hit ESC to exit" << "\n" ;
    while (true)
    {
	    if (!cap.read(img))
	    {
		    std::cout<<"Capture read error"<<std::endl;
		    break;
	    }
	    
	    cv::imshow("CSI Camera", img);
	    
	    int keycode = cv::waitKey(0) & 0xff;
	    if (keycode == 27) break;
    }

    cap.release();
    cv::destroyAllWindows();

    return 0;
}