#include <opencv2/highgui/highgui.hpp>

#include <iostream>

cv::VideoCapture vc;

void seek(int pos) {

        int frame_id_set = pos;

        if (!vc.set(CV_CAP_PROP_POS_FRAMES, frame_id_set))

                std::cout << "error: set" << std::endl;

        int frame_id_get = vc.get(CV_CAP_PROP_POS_FRAMES);

        std::cout << "set frame pos " << frame_id_set << ", get frame pos " << frame_id_get << std::endl;

        cv::Mat frame;

        if (!vc.read(frame)) {

                std::cout << "error: read" << std::endl;

        } else {

                std::cout << "read ok" << std::endl;

//                cv::imshow("Frame", frame);

//                cv::waitKey(100);

        }

}

int main(int argc, char ** argv) {

        const char * fn = "test3.avi";

        if (!vc.open(fn))

                std::cout << "error: open" << std::endl;

        int frame_count = vc.get(CV_CAP_PROP_FRAME_COUNT);

        std::cout << frame_count << " frames" << std::endl;

        seek(frame_count - 1);

        seek(frame_count - 2);

        seek(frame_count - 3);

        return 0;

}