void application::main_application()
{
    currentInputFrame = vidSrc.extractFrame();
//     currentInputFrame = imread("/home/rahul.c/code/AMDI_USA_18_056/build/frame_30.png");
    this->vidSrc.incrementFrameCount();
    ++this->m_lastSSDFrameCount;

    if (currentInputFrame.empty()) {
        this->isVideoEnded = true;
#if AMD_TENSOR
        this->m_openVXTensor.deInitTensor();
#endif
        this->vidSrc.getVideoWriter()->release();
    } else {

        cv::cvtColor(currentInputFrame, gray_img, CV_RGB2GRAY);
        bool isSSD = true;
        if (isSSDNeeded()) {
            this->runSSD();
            isSSD = false;
        }

        if (isSSD) {
            for (vector<Person>::iterator it = this->m_activePersonList.begin(); it != this->m_activePersonList.end() && isSSD; ++it) {
                Person& p = *it;
                cv::Rect trackedHeadBBox;
                this->track(&p, &isSSD, &trackedHeadBBox);
            }
        }

        for (vector<Person>::iterator it = this->m_activePersonList.begin(); it != this->m_activePersonList.end(); ++it) {
            Person& p = *it;
            FaceBoundaryBox* box = p.getFaceBoundaryBox();
            bool isNegativeFRID = p.getFrid() == -1;
            cv::Scalar boxTextColor = isNegativeFRID ? cv::Scalar(0, 0, 255) : cv::Scalar(0, 255, 0);
//             const string displayText = isNegativeFRID ? "Unknown" : "FRID : " + to_string(p.getFrid());// + ", DIST : " + to_string(p.getFaceBoundaryBox()->getScore());
            const string displayText = isNegativeFRID ? "Unknown" : to_string(p.getFrid());

            cv::putText(
                currentInputFrame,
                displayText,
                cv::Point(
                    p.getFaceBoundaryBox()->getNLoc_X(),
                    p.getFaceBoundaryBox()->getNLoc_Y()
                ),
                FONT_HERSHEY_SIMPLEX,
                0.6,
                boxTextColor,
                2,
                p.getFaceBoundaryBox()->getNLoc_X() > 30 && p.getFaceBoundaryBox()->getNLoc_Y() > 30
            );

            cv::rectangle(
                currentInputFrame,
                cv::Rect(
                    box->getNLoc_X(), box->getNLoc_Y(),
                         box->getNWidth(), box->getNHeight()
                ),
                boxTextColor,
                          2
            );
        }

        this->m_stop = chrono::high_resolution_clock::now();
        chrono::duration<double> timeSpan = chrono::duration_cast<chrono::duration<double>>(this->m_stop - this->m_start);
        int frameCount = this->vidSrc.getFrameCount();
        double fps = frameCount / timeSpan.count();
        string displayText = to_string(frameCount) + ", " + to_string(fps) + " fps";

        cv::putText(
            currentInputFrame,
            displayText,
            cv::Point(30, 30),
            FONT_HERSHEY_SIMPLEX,
            0.8,
            cv::Scalar(0, 0, 255),
            2,
            false
        );

        display.displayVideo(currentInputFrame, vidSrc.getFileName());
        this->vidSrc.getVideoWriter()->write(currentInputFrame);
//         getchar();
    }
}