7월12일 블랙박스 ver1

/*
Example code for displaying gstreamer video from the CSI port of the Nvidia Jetson in OpenCV.
Created by Peter Moran on 7/29/17.
https://gist.github.com/peter-moran/742998d893cd013edf6d0c86cc86ff7f
 
Update by inseock, seongjun on 2019.07.12
 
*/
#include <opencv2/opencv.hpp>
#include <iostream>
#include <ctime>
#include <list>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
 
using namespace cv;
using namespace std;
 
std::string get_tegra_pipeline(int width, int height, int fps) {
    return "nvarguscamerasrc ! video/x-raw(memory:NVMM), width=(int)" + std::to_string(width) + ", height=(int)" +
        std::to_string(height) + ", format=(string)NV12, framerate=(fraction)" + std::to_string(fps) +
        "/1 ! nvvidconv flip-method=0 ! video/x-raw, format=(string)BGRx ! videoconvert ! video/x-raw, format=(string)BGR ! appsink";
}
 
int main() 
{
    // Options
    int WIDTH = 640;
    int HEIGHT = 480;
    int FPS = 10;
 
    // Define the gstream pipeline
    std::string pipeline = get_tegra_pipeline(WIDTH, HEIGHT, FPS);
    std::cout << "Using pipeline: \n\t" << pipeline << "\n";
 
    // Create OpenCV capture object, ensure it works.
    cv::VideoCapture cap(pipeline, cv::CAP_GSTREAMER);
    if (!cap.isOpened()) {
        std::cout << "Connection failed";
        return -1;
    }
 
    // View video
    cv::Mat frame;
 
    while (1)
    {
        time_t curr_time;
        struct tm *curr_tm;
        curr_time = time(NULL);
        curr_tm = localtime(&curr_time);
        int num;
        num = (curr_tm->tm_min + 1) % 60;
 
        cout << "======= num =========" << endl;
        cout << num << endl;
 
        VideoWriter video("save_avi/" +
            to_string(curr_tm->tm_year + 1900) + "_" +
            to_string(curr_tm->tm_mon + 1) + "_" +
            to_string(curr_tm->tm_mday) + "_" +
            to_string(curr_tm->tm_hour) + ":" +
            to_string(curr_tm->tm_min) + ":" +
            to_string(curr_tm->tm_sec) + ".avi", CV_FOURCC('M', 'J', 'P', 'G'), FPS, Size(WIDTH, HEIGHT), true);
        
        while (1) {
 
            // time 함수는 1970년 1월 1일 이후 몇초가 지났는지를 계산합니다. NULL을 인자로 사용합니다.
            curr_time = time(NULL);
 
            // 지역 시간을 기준으로 변환 및 출력 편의를 위하여 tm 구조체에 저장합니다.(포맷팅)
            curr_tm = localtime(&curr_time);
 
            cap >> frame; // Get a new frame from camera
                          // Display frame
 
            cv::putText(frame,
                to_string(curr_tm->tm_year + 1900) + "." +
                to_string(curr_tm->tm_mon + 1) + "." +
                to_string(curr_tm->tm_mday) + "." +
                to_string(curr_tm->tm_hour) + ":" +
                to_string(curr_tm->tm_min) + ":" +
                to_string(curr_tm->tm_sec),
 
                Point(30, 450), 1, 1.2, Scalar::all(255));
 
            video.write(frame);
            imshow("Display window", frame);
            cv::waitKey(1); //needed to show frame
 
            if (curr_tm->tm_min == num)
                break;
        }
 
        FILE *fp;
        list<string> avi;
 
        char buf[255] = "\0";
        fp = popen("ls save_avi/", "r");
 
        if (fp == NULL)
        {
            perror("error");
            exit(0);
        }
 
        while (fgets(buf, 255, fp) != NULL)
        {
            avi.push_back(buf);
        }
 
        avi.sort();
 
        if (avi.size()<3)
        {
        }
        else
        {
            char buf2[255] = "\0";    
            strcpy(buf, avi.front().c_str());
            int i = 0;
            char buff_null[255] = "\0";
 
            chdir("/home/user/0712black/save_avi/");
 
            while (buf[i + 1] != '\0')
            {
                buff_null[i] = buf[i];
                i++;
            }
 
            if (remove(buff_null) == 0)
            {
                cout << "ok" << endl;
            }
            else 
            {
                cout << "error" << endl;
            }
            chdir("/home/user/0712black/");
        }
    }
    cout << "exit!!" << endl;
}

 

개발환경

Jetson TX2

opencv 3.3.1

c++