OpenCV2从摄像头获取帧并写入视频文件的方法

#include<opencv2/highgui/highgui.hpp>#include<opencv2/imgproc/imgproc.hpp>#include<opencv2/core/core.hpp>int main(){ //打开摄像头 cv::VideoCapture captrue(0); //视频写入对象 cv::VideoWriter write; //写入视频文件名 std::string outFlie = "D:/1.avi"; //获得帧的宽高 int w = static_cast<int>(captrue.get(CV_CAP_PROP_FRAME_WIDTH)); int h = static_cast<int>(captrue.get(CV_CAP_PROP_FRAME_HEIGHT)); cv::Size S(w, h); //获得帧率 double r = captrue.get(CV_CAP_PROP_FPS); //打开视频文件，准备写入 write.open(outFlie, -1, r, S, true); //打开失败 if (!captrue.isOpened()) {  return 1; } bool stop = false; cv::Mat frame; //循环 while (!stop) {  //读取帧  if (!captrue.read(frame))   break;  cv::imshow("Video", frame);  //写入文件  write.write(frame);  if (cv::waitKey(10) > 0)  {   stop = true;  } } //释放对象 captrue.release(); write.release();}