opencv 把图片序列转化为视频流

#include <string.h>
#include <opencv2/opencv.hpp>

#include <opencv2/highgui/highgui.hpp>  // Video write
#include <sstream>

using namespace std;
class pubimage
{
public:

    pubimage()
    {
        aoutputVideo.open("./demo.avi", CV_FOURCC('M','J','P','G'), 30, cv::Size(544, 960), true);
        //文件后缀必须是avi，30是帧数，544*960是图片尺寸

        if (aoutputVideo.isOpened()){
            for(int i = 1; i < 414; i ++){
                string num;
                ostringstream convert;
                convert << i;
                num = convert.str();

                cv::Mat img = cv::imread("/media/img/" + num + ".jpg");
                aoutputVideo.write(img);
            }
        }
        else
            std::cout << "Could not open the output video for write " << std::endl;
    }

    ~pubimage() { }
private:
    cv::VideoWriter aoutputVideo;

};


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

    pubimage pub;

    return(0);
}