opencv实现视频播放位置跳转

#include
#include
using namespace cv;
using namespace std;
int main(int argc, char** argv)
{
	VideoCapture video;
	video.open("D:/au/2.mp4");
	if (!video.isOpened())
	{
		cout << "open video failed!" << endl;
		getchar();
		return -1;
	}
	cout << "open video success!" << endl;
	Mat frame;
	namedWindow("video");
	
	
	for (;;)
	{
		if (!video.read(frame))
		{
			break;
		}
		int cur = video.get(CAP_PROP_POS_frameS);
		if (cur > 90)
		{
			video.set(CAP_PROP_POS_frameS, 0);//大于90帧数就从新跳转到帧数为0的地方
			continue;//继续循环
		}

		if (frame.empty())break;
		imshow("video", frame);
		waitKey(30);
	}

	waitKey(0);
	return 0;

}