HgdXP0eb

1#include <opencv2/core.hpp>
2#include <opencv2/highgui.hpp>
3#include <iostream>
4#include <stdio.h>
5
6// для версии 2.4.13.6
7
8int main(int, char**)
9{
10    bool stat;
11
12    cv::Mat frame;
13    cv::Mat frame2;
14    std::vector<uchar> buff;
15
16    //--- INITIALIZE VIDEOCAPTURE
17    cv::VideoCapture cap;
18    // open the default camera using default API
19    // cap.open(0);
20    // OR advance usage: select any API backend
21    int deviceID = 0;             // 0 = open default camera
22    int apiID = 0;      // 0 = autodetect default API
23    // open selected camera using selected API
24    cap.open(deviceID + apiID);
25    // check if we succeeded
26    if (!cap.isOpened()) {
27        std::cerr << "ERROR! Unable to open camera\n";
28        return -1;
29    }
30    //--- GRAB AND WRITE LOOP
31    std::cout << "Start grabbing" << std::endl
32        << "Press any key to terminate" << std::endl;
33    for (;;)
34    {
35        // wait for a new frame from camera and store it into 'frame'
36        cap.read(frame);
37        // check if we succeeded
38        if (frame.empty()) {
39            std::cerr << "ERROR! blank frame grabbed\n";
40            break;
41        }
42
43        stat = cv::imencode(".jpeg", frame, buff);
44        // TODO: check stat
45
46        frame2 = cv::imdecode(buff, CV_LOAD_IMAGE_COLOR);
47
48        // show live and wait for a key with timeout long enough to show images
49        cv::imshow("Live", frame2);
50        if (cv::waitKey(5) >= 0)
51            break;
52    }
53    // the camera will be deinitialized automatically in VideoCapture destructor
54    return 0;
55}