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#include <opencv2/opencv.hpp>
#include <iostream>

using namespace cv;
using namespace cv::bgsubcnt;
using namespace std;

int main( int argc, char** argv )
{
    VideoCapture cap;

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#include "bgsubcnt.h"

using namespace cv::bgsubcnt;

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// Rest of the code is the same ...
   Ptr<BackgroundSubtractor> pBgSub = createBackgroundSubtractorCNT();
// Rest of the code is the same ...

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Ptr<BackgroundSubtractorCNT>
createBackgroundSubtractorCNT(int minPixelStability = 15,
                              bool useHistory = true,
                              int maxPixelStability = 15*60,
                              bool isParallel = true);

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import numpy as np
import cv2
import bgsubcnt                               # 1. New import

# A temporary solution to OpenCV 3.1.0 bug
#  with background subtractors
cv2.ocl.setUseOpenCL(False)

cap = cv2.VideoCapture('/home/userName/Downloads/opencv-3.1.0/samples/data/768x576.avi')

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#!/bin/sh

if [ "$1" = "-h" ]; then
    echo "Usage: $0 [filename]"
    exit
fi

# Get the IP automatically - this will prompt for a password because of sudo usage
ip=`sudo arp-scan -localnet | perl -ne 'print $1 if /(\S+).*Rigol/i'`
if [ "$ip" = "" ]; then

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#include <thread>
#include <tbb/concurrent_queue.h>
#include <tbb/pipeline.h>
volatile bool done = false; // volatile is enough here. We don't need a mutex for this simple flag.
struct ProcessingChainData
{
    Mat img;
    vector<Rect> faces, faces2;
    Mat gray, smallImg;
};

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//...
    if( capture.isOpened() )
    {
        //...

        tbb::concurrent_bounded_queue<ProcessingChainData *> guiQueue;
        guiQueue.set_capacity(2); // TBB NOTE: flow control so the pipeline won't fill too much RAM
        auto pipelineRunner = thread( detectAndDrawTBB, ref(capture), ref(guiQueue), ref(cascade), ref(nestedCascade), scale, tryflip );

        //...    

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// TBB NOTE: This usage below is just for the tbb demonstration.
//           It is not an example for good OO code. The lambda
//           expressions are used to easily show the correleation
//           between the original code and the tbb code.
void detectAndDrawTBB( VideoCapture &capture,
                       tbb::concurrent_bounded_queue<ProcessingChainData *> &guiQueue,
                       CascadeClassifier& cascade,
                       CascadeClassifier& nestedCascade,
                       double scale, bool tryflip )
{

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class CountingManager
{
public:
    CountingManager(Canvas &c)
    {
        c.notifyOnShapeCreate([&c, this](Shape* shape)
        {   // User created a shape
            if (shape->getType() == LineCrossing::type)
            {   // Add the LineCrossing to out list
                LineCrossing *pLineCrossing = (LineCrossing*) shape;