| 1 | #include "stdafx.h"
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| 2 | #include<iostream>
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| 3 | #include<vector>
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| 4 | using namespace std;
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| 5 |
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| 6 | #include "opencv2/opencv.hpp"
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| 7 | using namespace cv;
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| 8 |
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| 9 | int main(int argc, char* argv[])
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| 10 | {
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| 11 | char buffer[1024] = "";
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| 12 | char vname[512] = "inp.mov";
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| 13 |
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| 14 | VideoCapture video(vname);
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| 15 | if(!video.isOpened()) {
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| 16 | cout << "Can't open video: " << vname << endl;
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| 17 | return 0;
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| 18 | }
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| 19 | int nFrames = video.get(CV_CAP_PROP_FRAME_COUNT);
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| 20 | int fWidth = video.get(CV_CAP_PROP_FRAME_WIDTH);
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| 21 | int fHeight = video.get(CV_CAP_PROP_FRAME_HEIGHT);
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| 22 |
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| 23 | bool done = false;
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| 24 | bool next = false;
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| 25 | int key;
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| 26 |
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| 27 | Mat display(fHeight + 200, fWidth, CV_8UC3);
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| 28 | display(Rect(0,fHeight,fWidth,200)) = 0;
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| 29 |
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| 30 | namedWindow("Display");
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| 31 |
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| 32 | int fNum = 0;
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| 33 | Mat currFrame;
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| 34 | while(!done) {
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| 35 | bool val = video.set(CV_CAP_PROP_POS_FRAMES, fNum);
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| 36 | video >> currFrame;
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| 37 | if(currFrame.empty()) {
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| 38 | cout << "Frame not found" << endl;
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| 39 | }
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| 40 | currFrame.copyTo(display(Rect(0, 0, fWidth, fHeight)));
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| 41 | sprintf(buffer,"%d",fNum);
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| 42 | putText(display, buffer, Point(fWidth - 50, 30), FONT_HERSHEY_PLAIN, 1, CV_RGB(0, 155, 0));
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| 43 | imshow("Display", display);
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| 44 |
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| 45 | next = false;
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| 46 | while(!next) {
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| 47 | key = waitKey(0);
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| 48 | switch(key) {
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| 49 | case 'n':
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| 50 | case 'N':
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| 51 | case ' ':
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| 52 | fNum += 20;
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| 53 | display(Rect(0, fHeight+100, fWidth, 100)) = 0;
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| 54 | if(fNum >= nFrames) {
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| 55 | putText(display, "Reached end of the video!", Point(fWidth/2 - 100, fHeight + 180), FONT_HERSHEY_PLAIN, 1, CV_RGB(255,0,0));
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| 56 | fNum -= 20;
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| 57 | }
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| 58 | else
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| 59 | next = true;
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| 60 | break;
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| 61 | case 'p':
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| 62 | case 'P':
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| 63 | fNum -= 20;
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| 64 | display(Rect(0, fHeight+100, fWidth, 100)) = 0;
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| 65 | if(fNum < 0) {
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| 66 | putText(display, "Reached start of the video!", Point(fWidth/2 - 100, fHeight + 180), FONT_HERSHEY_PLAIN, 1, CV_RGB(255,0,0));
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| 67 | fNum += 20;
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| 68 | }
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| 69 | else {
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| 70 |
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| 71 | next = true;
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| 72 | }
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| 73 | break;
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| 74 | case 'q':
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| 75 | next = true;
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| 76 | done = true;
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| 77 | break;
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| 78 | }
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| 79 | }
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| 80 | }
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| 81 | return 0;
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| 82 | }
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