用OpenCV讀取視頻的簡單例子

用OpenCV讀取視頻的簡單例子：

1. #include "stdafx.h"
2. #include "cv.h"
3. #include <cxcore.h>
4. #include <highgui.h>
7. int main(int argc,char** argv)
8. {
9. CvCapture* g_capture = cvCreateFileCapture("D:\\test2.avi"); // 視頻地址
12. IplImage* frame;
13. string originVideoWinName = "Video_Origin";
16. cvNamedWindow(originVideoWinName.c_str(),CV_WINDOW_AUTOSIZE);
17. while (1)
18. {
19. frame = cvQueryFrame(g_capture); // 捕獲每幀
20. if (!frame)
21. {
22. break;
23. }
24. cvShowImage(originVideoWinName.c_str(),frame);
25. char c = cvWaitKey(33);
26. if (c==27)
27. {
28. break;
29. }
30. }
31. cvReleaseCapture(&g_capture);
32. cvDestroyWindow(originVideoWinName.c_str());
33. }