OpenCV parallelization with OpenMP

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I am getting Fatal error in this code. I want to display the frames parallely. Need help.I am newbee to OpenCV and OpenMP. Ur suggestions will be helpful for me. please :)

 #include <cv.h>
    #include <cvaux.h>
    #include <iostream>
    #include <cxcore.h>
    #include <highgui.h>
    #include <omp.h>

    using namespace cv;
    using namespace std;

    int main(int argc, char **argv)
    {
        int no_of_frames = 0,i,j;
        int fps = 0;
        int mid_frame = 0;
        CvCapture* capture = cvCaptureFromFile("/home/nagaraj/ImageVideo/tunnel.avi");
        CvCapture* captureNew = cvCaptureFromFile("/home/nagaraj/ImageVideo/tunnel.avi");
        if (capture == NULL)
        {
            printf("Error: Can't open video.\n");
            return -1;
        }
        if (captureNew == NULL)
        {
            printf("Error: Can't open video.\n");
            return -1;
        }
        fps = (int)cvGetCaptureProperty(capture,CV_CAP_PROP_FPS);
        no_of_frames = (int)cvGetCaptureProperty(capture,CV_CAP_PROP_FRAME_COUNT);
        mid_frame = no_of_frames/2;
        omp_set_num_threads(2);


    #pragma omp parallel sections
        {
    #pragma omp section
        {
            //cvSetCaptureProperty(capture,CV_CAP_PROP_POS_FRAMES,0);
            IplImage* img = cvQueryFrame(capture);
            cvNamedWindow("Window1",CV_WINDOW_AUTOSIZE);
            cvShowImage("Window1",img);
            cvWaitKey(10000);
            cvReleaseImage(&img);
            cvDestroyWindow("Window1");
            cvReleaseCapture(&capture);
        }
    #pragma omp section
        {
            cvSetCaptureProperty(captureNew,CV_CAP_PROP_POS_FRAMES,(double)mid_frame-1);
            IplImage* img = cvQueryFrame(captureNew);
            cvNamedWindow("Window2",CV_WINDOW_AUTOSIZE);
            cvShowImage("Window2",img);
            cvWaitKey(10000);
            cvReleaseImage(&img);
            cvDestroyWindow("Window2");
            cvReleaseCapture(&captureNew);
        }
    }
    }