C++ 在C+中线程化OpenCV VideoCapture对象+；

我正在使用Python中的以下代码，以便通过一个专用线程从OpenCV VideoCapture对象连续获取帧，并且工作正常

from threading import Thread
import cv2
import imutils

class VideoGet:

    def __init__(self, src=0):
        self.stream = cv2.VideoCapture(src)
        (self.grabbed, img) = self.stream.read()
        self.frame = imutils.resize(img, height=416, width=416)
        self.stopped = False

    def start(self):    
        Thread(target=self.get, args=()).start()
        return self

    def get(self):
        while not self.stopped:
            if not self.grabbed:
                self.stop()
            else:
                (self.grabbed, img) = self.stream.read()
                try:
                    self.frame = imutils.resize(img, height=416, width=416)
                except:
                    self.stopped =True

    def stop(self):
        self.stopped = True

我现在尝试通过创建一个VIEGGET类来处理C++图像中类似的东西，但是我很难做到。以下是我迄今为止的尝试：

头文件

#include <opencv2/opencv.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <thread>



class VideoGet {

public:

    VideoGet(int src);

    cv::VideoCapture stream;
    cv::Mat img, frame;
    bool stopped;

    std::thread start();
    void get();
    void stop();


}

你能帮我弄清楚怎么弄清楚吗

提前谢谢

#include "videoget.h"
#include <opencv2/opencv.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <thread>

using namespace cv;
using namespace std;

VideoGet::VideoGet(int src) {

    Mat img;
    this->stream = VideoCapture(src);
    this->img = this->stream.read();
    resize(this->img, this->frame, Size(416, 416));
    this->stopped = false;

}

thread VideoGet::start() {

thread t(VideoGet::get());
return t;
}

void VideoGet::get() {

    while (this->stopped = false)
    {
        if (this->frame.empty())
        {
            VideoGet::stop();
        }
        else
        {
            this->stream.read();
            try
            {
                resize(this->img, this->frame, Size(416, 416));
            }
            catch(...)
            {
            this->stopped = true;
            }
        }

    }
}

void VideoGet::stop() {

    this->stopped = true;
}

1>c:\users\antho\documents\c++\thread_demo\thread_demo\thread_demo\videoget.cpp(6): error C2059: syntax error: 'using namespace'
1>c:\users\antho\documents\c++\thread_demo\thread_demo\thread_demo\videoget.cpp(11): error C2065: 'Mat': undeclared identifier
1>c:\users\antho\documents\c++\thread_demo\thread_demo\thread_demo\videoget.cpp(11): error C2146: syntax error: missing ';' before identifier 'img'
1>c:\users\antho\documents\c++\thread_demo\thread_demo\thread_demo\videoget.cpp(12): error C3861: 'VideoCapture': identifier not found
1>c:\users\antho\documents\c++\thread_demo\thread_demo\thread_demo\videoget.cpp(13): error C2660: 'cv::VideoCapture::read': function does not take 0 arguments
1>d:\opencv\build\install\include\opencv2\videoio.hpp(768): note: see declaration of 'cv::VideoCapture::read'
1>c:\users\antho\documents\c++\thread_demo\thread_demo\thread_demo\videoget.cpp(14): error C3861: 'Size': identifier not found
1>c:\users\antho\documents\c++\thread_demo\thread_demo\thread_demo\videoget.cpp(21): error C2665: 'std::thread::thread': none of the 3 overloads could convert all the argument types
1>d:\program files (x86)\microsoft visual studio\2017\community\vc\tools\msvc\14.16.27023\include\thread(70): note: could be 'std::thread::thread(const std::thread &)'
1>d:\program files (x86)\microsoft visual studio\2017\community\vc\tools\msvc\14.16.27023\include\thread(59): note: or       'std::thread::thread(std::thread &&) noexcept'
1>d:\program files (x86)\microsoft visual studio\2017\community\vc\tools\msvc\14.16.27023\include\thread(36): note: or       'std::thread::thread(void) noexcept'
1>c:\users\antho\documents\c++\thread_demo\thread_demo\thread_demo\videoget.cpp(21): note: while trying to match the argument list '(void)'
1>c:\users\antho\documents\c++\thread_demo\thread_demo\thread_demo\videoget.cpp(35): error C2660: 'cv::VideoCapture::read': function does not take 0 arguments
1>d:\opencv\build\install\include\opencv2\videoio.hpp(768): note: see declaration of 'cv::VideoCapture::read'
1>c:\users\antho\documents\c++\thread_demo\thread_demo\thread_demo\videoget.cpp(38): error C3861: 'Size': identifier not found
1>Done building project "thread_demo.vcxproj" -- FAILED.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========