1. // C++ header and namespace
2. #include <iostream>
3. #include <string>
4. #include <cstdlib>
5. using namespace std;
7. // Opencv header and namespace
8. #include <opencv2/core/core.hpp>
9. #include <opencv2/highgui/highgui.hpp>
10. #include <opencv2/imgproc/imgproc.hpp>
11. #include <opencv2/video/video.hpp>
12. using namespace cv;
14. bool JumpToFrame(false);
16. int main(int argc, char* argv[])
17. {
18. //!< Check out Input video
19. if (argc != 2)
20. {
21. cerr << "Usage: VideoPlayer.exe VideoFilename." << endl;
22. exit(1);
23. }
25. //!< Check out Open Video
26. VideoCapture capture(argv[1]);
27. if (!capture.isOpened())
28. {
29. return 1;
30. }
32. #pragma region InfoOfVideo
34. long NumberOfFrame = static_cast<long>(capture.get(CV_CAP_PROP_FRAME_COUNT));
35. double HeightOfFrame = capture.get(CV_CAP_PROP_FRAME_HEIGHT);
36. double WidthOfFrame = capture.get(CV_CAP_PROP_FRAME_WIDTH);
37. double FpsOfVideo = capture.get(CV_CAP_PROP_FPS);
39. cout << "The name of the input video is " << argv[1] << "." << endl;
40. cout << "NumberOfFrame : " << NumberOfFrame << endl;
41. cout << "HeightOfFrame : " << HeightOfFrame << endl;
42. cout << "WidthOfFrame : " << WidthOfFrame << endl;
43. cout << "FpsOfVieo : " << FpsOfVideo << endl;
45. #pragma endregion
47. // !< JumpToFrame function
48. while (JumpToFrame)
49. {
50. double Position = 0.0;
51. cout << "Please input the number of frame which you want jump to!" << endl;
52. cin >> Position;
53. capture.set(CV_CAP_PROP_POS_FRAMES, Position);
54. }
56. // !< Delay between each frame in ms corresponds to video frame rate(fps)
57. Mat frame;
58. bool stop(false);
59. int delay = 1000 / FpsOfVideo;
60. namedWindow("Extracted Frame");
62. while (!stop)
63. {
64. //read next frame if any
65. if (!capture.read(frame))
66. {
67. break;
68. }
69. imshow("Extracted Frame", frame);
70. //introduce a delay or press key to stop
71. if (waitKey(delay) >= 0)
72. {
73. stop = true;
74. }
75. }
77. // !< Close the video file.
78. // Not required since called by destructor
79. capture.release();
81. return 0;
82. }

Opencv 簡單視頻播放器