opencv播放视频

#include <opencv.hpp>#include <iostream>using namespace cv;using namespace std;int main() {    //打开视频文件    VideoCapture capture("april21.avi");    //isOpen判断视频是否打开成功    if (!capture.isOpened())    {        cout << "error" << endl;        return -1;    }    Mat frame;    while (1)    {        //读取视频帧        if (!capture.read(frame))            break;        imshow("Movie Player", frame);        //获取按键值:ESC        char c = waitKey(33);        if (c == 27)            break;    }    capture.release();    destroyWindow("AVI");    waitKey(0);    return 0;}