├── 768x576.avi
├── main.cpp
├── presentation
    └── Intro.png
└── readme.txt


/768x576.avi:
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https://raw.githubusercontent.com/MicrocontrollersAndMore/OpenCV_3_Play_Video_File_Cpp/5f08a5b43337055e623dd83cb03f908ab651cdea/768x576.avi


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/main.cpp:
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 1 | // PlayVideoFileCpp.sln
 2 | // main.cpp
 3 | 
 4 | #include<opencv2/core/core.hpp>
 5 | #include<opencv2/highgui/highgui.hpp>
 6 | #include<opencv2/imgproc/imgproc.hpp>
 7 | 
 8 | #include<iostream>
 9 | #include<conio.h>           // it may be necessary to change or remove this line if not using Windows
10 | 
11 | ///////////////////////////////////////////////////////////////////////////////////////////////////
12 | int main(void) {
13 | 
14 |     cv::VideoCapture capVideo;
15 | 
16 |     cv::Mat imgFrame;
17 | 
18 |     capVideo.open("768x576.avi");
19 | 
20 |     if (!capVideo.isOpened()) {                                                 // if unable to open video file
21 |         std::cout << "\nerror reading video file" << std::endl << std::endl;      // show error message
22 |         _getch();                    // it may be necessary to change or remove this line if not using Windows
23 |         return(0);                                                              // and exit program
24 |     }
25 | 
26 |     if (capVideo.get(CV_CAP_PROP_FRAME_COUNT) < 1) {
27 |         std::cout << "\nerror: video file must have at least one frame";
28 |         _getch();
29 |         return(0);
30 |     }
31 | 
32 |     capVideo.read(imgFrame);
33 | 
34 |     char chCheckForEscKey = 0;
35 | 
36 |     while (capVideo.isOpened() && chCheckForEscKey != 27) {
37 | 
38 |         cv::imshow("imgFrame", imgFrame);
39 | 
40 |                 // now we prepare for the next iteration
41 | 
42 |         if ((capVideo.get(CV_CAP_PROP_POS_FRAMES) + 1) < capVideo.get(CV_CAP_PROP_FRAME_COUNT)) {       // if there is at least one more frame
43 |             capVideo.read(imgFrame);                            // read it
44 |         }
45 |         else {                                                  // else
46 |             std::cout << "end of video\n";                      // show end of video message
47 |             break;                                              // and jump out of while loop
48 |         }
49 | 
50 |         chCheckForEscKey = cv::waitKey(1);      // get key press in case user pressed esc
51 | 
52 |     }
53 | 
54 |     if (chCheckForEscKey != 27) {               // if the user did not press esc (i.e. we reached the end of the video)
55 |         cv::waitKey(0);                         // hold the windows open to allow the "end of video" message to show
56 |     }
57 |         // note that if the user did press esc, we don't need to hold the windows open, we can simply let the program end which will close the windows
58 | 
59 |     return(0);
60 | }
61 | 
62 | 
63 | 
64 | 
65 | 
66 | 
67 | 
68 | 
69 | 


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/presentation/Intro.png:
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https://raw.githubusercontent.com/MicrocontrollersAndMore/OpenCV_3_Play_Video_File_Cpp/5f08a5b43337055e623dd83cb03f908ab651cdea/presentation/Intro.png


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/readme.txt:
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1 | The video pretty much explains it all:
2 | https://www.youtube.com/watch?v=VE-1UarzE40


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