Multi - Thread Programming

[bajoelkid12]

Hi all!

i'm working on an webcam video streaming application.. The application has several parts.

//Part 1, Frame Grabber
int main(int argc, char **argv)
{
    CvCapture *capture;
    IplImage *frame;
    IplImage *frame1;
    IplImage *frame2;
 
    double t,ms = 0;
    int    key = 0;
 
    /* Initialize webcam and window */
    capture = cvCaptureFromCAM(0);
    cvNamedWindow("JCXSUPERTAMARK5",1);
 
    while (key != 'q')
    {
        t = (double)cvGetTickCount();
 
 
        /* show the image from webcam */
        frame = cvQueryFrame(capture);
        cvShowImage("JCXSUPERTAMARK5",frame);
        key = cvWaitKey(1);
 
        /* converting.. . */
 
        frame1 = cvCreateImage(cvGetSize(frame), IPL_DEPTH_8U, 1);
        cvCvtColor(frame, frame1, CV_BGR2GRAY);
        frame2 = cvCreateImage(cvSize(320,240), IPL_DEPTH_8U, 1);
 
        cvResize(frame1,frame2);
 
        /* GET ELAPSED TIME */
        t = (double)cvGetTickCount() -t;
        ms += t / ((double)cvGetTickFrequency() * 1000.0);
 
        /* 0.04 sec auto save (25 frame per sec.) */
        if (ceil(ms) >= 40)
        {
            cvSaveImage("test.png",frame2);
            ms = 0;
        }
    }
 
    /* free up memory */
    cvReleaseCapture(&capture);
    cvDestroyWindow("JCXSUPERTAMARK5");
 
    return 0;
}
 
//Part 2, image sender
QImage image;
        image.load("../appSendImage/test.png", "PNG");	 // Prepare / load an image
	QString address = "127.0.0.1";
	int port = 6667;
	SendImage s(address, port);			// Construct SendImage and give the server address and port
        s.send(image, "test.png");

//Part 1, Frame Grabber
int main(int argc, char **argv)
{
    CvCapture *capture;
    IplImage *frame;
    IplImage *frame1;
    IplImage *frame2;

    double t,ms = 0;
    int    key = 0;

    /* Initialize webcam and window */
    capture = cvCaptureFromCAM(0);
    cvNamedWindow("JCXSUPERTAMARK5",1);

    while (key != 'q')
    {
        t = (double)cvGetTickCount();


        /* show the image from webcam */
        frame = cvQueryFrame(capture);
        cvShowImage("JCXSUPERTAMARK5",frame);
        key = cvWaitKey(1);

        /* converting.. . */

        frame1 = cvCreateImage(cvGetSize(frame), IPL_DEPTH_8U, 1);
        cvCvtColor(frame, frame1, CV_BGR2GRAY);
        frame2 = cvCreateImage(cvSize(320,240), IPL_DEPTH_8U, 1);

        cvResize(frame1,frame2);

        /* GET ELAPSED TIME */
        t = (double)cvGetTickCount() -t;
        ms += t / ((double)cvGetTickFrequency() * 1000.0);

        /* 0.04 sec auto save (25 frame per sec.) */
        if (ceil(ms) >= 40)
        {
            cvSaveImage("test.png",frame2);
            ms = 0;
        }
    }

    /* free up memory */
    cvReleaseCapture(&capture);
    cvDestroyWindow("JCXSUPERTAMARK5");

    return 0;
}

//Part 2, image sender
QImage image;
        image.load("../appSendImage/test.png", "PNG");	 // Prepare / load an image
	QString address = "127.0.0.1";
	int port = 6667;
	SendImage s(address, port);			// Construct SendImage and give the server address and port
        s.send(image, "test.png");

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And i want these parts to be run in different threads. How can i implement QThread
in my application ? Need your advice please.. .

code reference :
Part 1 :
http://nashruddin.com/Web_Based_Surv...and_Javascript
Part 2 :
http://www.hanckmann.net/?q=node/44

[wysota]

How can i implement QThread in my application ?

What have you already tried to solve your problem?