// Example 8-2. Using cv::FileStorage to create a .yml data file
//
#include <opencv2/opencv.hpp>
#include <time.h>
#include <iostream>

using namespace std;

int main(int argc, char** argv) {
  
  cout << "\nExample 8-2. Using cv::FileStorage to create a .yml data file\n"
      << argv[0] 
      << "\n\n   output: test.yml\n\n" << endl;
  
  cv::FileStorage fs("test.yml", cv::FileStorage::WRITE);

  fs << "frameCount" << 5;

  time_t rawtime; time(&rawtime);

  fs << "calibrationDate" << asctime(localtime(&rawtime));

  cv::Mat cameraMatrix = (
    cv::Mat_<double>(3,3) << 1000, 0, 320, 0, 1000, 240, 0, 0, 1
  );
  cv::Mat distCoeffs = (
    cv::Mat_<double>(5,1) << 0.1, 0.01, -0.001, 0, 0
  );

  fs << "cameraMatrix" << cameraMatrix << "distCoeffs" << distCoeffs;

  fs << "features" << "[";
  for( int i = 0; i < 3; i++ ) {
    int x = rand() % 640;
    int y = rand() % 480;
    uchar lbp = rand() % 256;
    fs << "{:" << "x" << x << "y" << y << "lbp" << "[:";
    for( int j = 0; j < 8; j++ )
      fs << ((lbp >> j) & 1);
    fs << "]" << "}";
  }
  fs << "]";

  fs.release();

  return 0;

}