Extract GPS information from CSV file (rendered from GoPro). Match the video frame and gps coords, so in 1 second of video has 1 assigned coordinate. Play the video

GpsCoordVideoFrame.cpp

int main(int argc, char** argv) {
	int frameidx, frametotal,fs;
	int count = 0;
	int	idx = 0;
	int idxrecord = 0;
	int framecount = 1;
	int gpsskip = 5;
	int divrange = 0;
	double firstsec, tempsec = 0;
	cout << fixed;

	ifstream file_reader("GOPR0632.csv");
	file_reader.ignore(341);
	vector<vector<string>> record;
	vector<int> diff;
	vector<int> frameskip;

	//extract csv file
	string line;
	while (getline(file_reader,line)) {
		stringstream ss(line);
		string token;
		vector<string> row;
		while (getline(ss, token, ',')) {
			row.push_back(token);
		}
		record.push_back(row);
	}
	//get total of gps coordinates in 1 sec
	firstsec = atof(record[0][0].c_str());
	for (int i = 0; i < record.size(); i++) {
		tempsec=atof(record[i][0].c_str());
		if (tempsec - firstsec < 1) {
			count += 1;
		}
		else {
			diff.push_back(count);
			count = 1;
			firstsec = atof(record[i][0].c_str());
		}
	}

	///print total of gps coordinates in 1 sec and total of frameskip per sec
	for (int i = 0; i < diff.size(); i++) {
		fs = int(((double(1) / diff[i])*gpsskip) / (double(1) / 60));
		divrange = int(double(60) / fs);
		for (int j = 0; j < divrange; j++) {
			frameskip.push_back(fs);
		}
		//cout << "range per sec = " << diff[i];
		//cout << " total frameskip = "<<fs << endl;
	}

	VideoCapture cap("GOPR0632.MP4");
	frametotal = cap.get(CV_CAP_PROP_FRAME_COUNT);
	if (!cap.isOpened()) { return -1; }
	while (1) {
		Mat frame;
		cap >> frame;
		if (frame.empty())
			break;
		imshow("Frame", frame);
		char c = (char)waitKey(30);
		frameidx=cap.get(CV_CAP_PROP_POS_FRAMES);

		if (framecount <= frameskip[idx]) {
			cout << "frame = " << frameidx << " coordinates = ";
			for (int x = 0; x < record[idxrecord].size(); x++) {
				cout <<record[idxrecord][x] << " ";
			}
			cout << endl;
			framecount = framecount + 1;
		}
		else if(framecount > frameskip[idx]) {
			idxrecord = idxrecord + gpsskip;
			framecount = 1;
			cout << "frame = " << frameidx << " coordinates = ";
			for (int x = 0; x < record[idxrecord].size(); x++) {
				cout << record[idxrecord][x] << " ";
			}
			cout << endl;
			framecount = framecount + 1;
			idx = idx + 1;
		}

		if (c == 27)
			break;
	}
	
	cap.release();
	destroyAllWindows();
	system("pause");
	return 0;
}