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play_video.cpp
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play_video.cpp
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// Basic openCV video playing function for future reference
#include<opencv2/core/core.hpp>
#include<opencv2/highgui/highgui.hpp>
#include<opencv2/imgproc/imgproc.hpp>
#include<iostream>
int main(void) {
cv::VideoCapture capturedVideo;
cv::Mat imageFrame;
capturedVideo.open("42x42.avi") // replace with correct .avi file later
if(!capturedVideo.isOpened()) {
std::cout << "\nerror while reading video file" << std::endl << std::endl;
_getch();
return 0;
}
capturedVideo.read(imgFrame);
char actualKeyPressed = 0;
while(capturedVideo.isOpened() && !escapeKeyHasBeenPressed(actualKeyPressed)) {
cv::imshow("imageFrame", imageFrame);
// prepare for next iteration
if ((capturedVideo.get(CV_CAP_PROP_POS_FRAMES) + 1) < capVideo.get(CV_CAP_PROP_FRAME_COUNT)) {
capturedVideo.read(imageFrame);
} else {
std::cout << "Reached end of video\n";
break;
}
actualKeyPressed = cv::waitKey(1);
}
// If the user hasn't pressed the escape key, then the window
// keeps showing to display the end message
if (!escapeKeyHasBeenPressed(actualKeyPressed)) {
cv::waitKey(0);
}
return 0;
}
// function seperated for extendability in the future
boolean escapeKeyHasBeenPressed(char actualKeyPressed) {
if (actualKeyPressed == 27) {
return true;
} else {
return false;
}
}