This is with the older OpenCV versions. I had problems using the new OpenCV 2.4.0 so I resorted to this older way of reading videos. It can also be used in the later OpenCV versions (i.e. they are backward compatible)
/* play a video file */
#include <highgui.h>
int main(int argc, char** argv) {
/* Create a window */
cvNamedWindow("Example2", CV_WINDOW_AUTOSIZE);
/* capture frame from video file */
CvCapture* capture = cvCreateFileCapture( argv[1]);
/* Create IplImage to point to each frame */
IplImage* frame;
/* Loop until frame ended or ESC is pressed */
while(1) {
/* grab frame image, and retrieve */
frame = cvQueryFrame(capture);
/* exit loop if fram is null / movie end */
if(!frame) break;
/* display frame into window */
cvShowImage("Example2", frame);
/* if ESC is pressed then exit loop */
char c = cvWaitKey(33);
if(c==27) break;
}
/* destroy pointer to video */
cvReleaseCapture(&capture);
/* delete window */
cvDestroyWindow("Example2");
return EXIT_SUCCESS;
}
