/**

 * @file   cvvideocapture.cpp

 * @author Julien Hirel

 * @date   Fri May  4 12:31:59 2012

 * 

 * @brief  Test of the VideoCapture class from OpenCV

 * 

 * This test tries to open and display the video (or image) given as a

 * parameter. It uses the VideoCapture object from OpenCV.

 */

#include <iostream>

#include <opencv2/core/core.hpp>

#include <opencv2/highgui/highgui.hpp>

int main(int ac, char *av[])

{

   if (ac <= 1)

   {

      std::cerr << "The name of the video file must be supplied as a parameter" << std::endl;

      exit(1);

   }

   cv::VideoCapture video;

   if (video.open(av[1]) == false)

   {

      std::cerr << "The video file (" << av[1] << ")could not be opened" << std::endl;

      exit(1);

   }

   cv::namedWindow("Display");

   cv::Mat videoFrame;

   while(1)

   {

      std::cout << "Rewinding video" << std::endl;

      // Rewind video

      if (video.set(CV_CAP_PROP_POS_FRAMES, 0) == false)

      {

         std::cerr << "The video could not be rewinded" << std::endl;

         exit(1);

      }

      while (video.read(videoFrame) == true)

      {

         cv::imshow("Display", videoFrame);

         cv::waitKey(5);

         std::cout << "timestamp = " << time(0) << std::endl;

         if (video.get(CV_CAP_PROP_POS_FRAMES) == video.get(CV_CAP_PROP_FRAME_COUNT))

         {

            break;

         }

      }

   }

}