Problem combine 2 codes...

I got those two, and want to combine them but really, everything is false... Can someone help me out? first

// Click the mouse to memorize a current background image
import processing.video.*;
import gab.opencv.*;

// Variable for capture device
Capture video;
OpenCV opencv;

// Saved background
PImage backgroundImage;

// How different must a pixel be to be a foreground pixel
float threshold = 20;

void setup() {
  String[] cameras = Capture.list();
  //printArray(cameras);
  size(1280, 720);
  //video.width = 1280;
  //video.height = 720;
  video = new Capture(this, 1280, 720, cameras[76]);

  video.start();

  opencv = new OpenCV(this, 1280, 720);
  opencv.startBackgroundSubtraction(5, 3, 0.5);

  // Create an empty image the same size as the video
  backgroundImage = createImage(video.width, video.height, RGB);




}

void captureEvent(Capture video) {
  // Read image from the camera
  video.read();
}

void draw() {
  if (video.available() == true) {
    video.read();
  }
  image(video, random(width),random(height));

  opencv.loadImage(video);

  opencv.updateBackground();

  opencv.dilate();
  opencv.erode();

  noFill();
  stroke(255, 0, 0);
  strokeWeight(3);
  for (Contour contour : opencv.findContours()) {
    contour.draw();

}
}

void mousePressed() {

}

** **second code to combine with first one**** **

import processing.video.*;

Capture video;
int signal = 0;

//the buffer for storing video frames
ArrayList frames;

//different program modes for recording and playback
int mode = 0;
int MODE_NEWBUFFER = 0;
int MODE_RECORDING = 1;
int MODE_PLAYBACK = 2;

int currentX = 0;

void setup() {
  size(640, 480);

  // This the default video input, see the GettingStartedCapture 
  // example if it creates an error
  video = new Capture(this, width, height);

  // Start capturing the images from the camera
  video.start();  
}

void captureEvent(Capture c) {
  c.read();

  //create a new buffer in case one is needed
  if (mode == MODE_NEWBUFFER) {
    frames = new ArrayList();
    mode = MODE_RECORDING;
  }

  //record into the buffer until there are enough frames
  if (mode == MODE_RECORDING) {
    //copy the current video frame into an image, so it can be stored in the buffer
    PImage img = createImage(width, height, RGB);
    video.loadPixels();
    arrayCopy(video.pixels, img.pixels);

    frames.add(img);

    //in case enough frames have been recorded, switch to playback mode
    if (frames.size() >= width) {
      mode = MODE_PLAYBACK;
    }
  }
}

void draw() { 
  loadPixels();

  //code for the recording mode 
  if (mode == MODE_RECORDING) {
    //set the image counter to 0
    int currentImage = 0;

    //begin a loop for displaying pixel columns
    for (int x = 0; x < video.width; x++) {
      //go through the frame buffer and pick an image using the image counter
      if (currentImage < frames.size()) {
        PImage img = (PImage)frames.get(currentImage);

        //display a pixel column of the current image
        if (img != null) {
          img.loadPixels();

          for (int y = 0; y < video.height; y++) {
            pixels[x + y * width] = img.pixels[x + y * video.width];
          }  
        }

        currentImage++;

      } 
      else {
        break;
      }
    }
  }

  if (mode == MODE_PLAYBACK) {  

    for (int x = 0; x < video.width; x++) {
      PImage img = (PImage)frames.get(x);

      if (img != null) {
        img.loadPixels();
        for(int y = 0; y < video.height; y++) {
          pixels[x + y * width] = img.pixels[currentX + y * video.width];
        }  
      }
    } 

    currentX++;

    if(currentX >= video.width) {
      mode = MODE_NEWBUFFER;
      //reset the column counter
      currentX = 0;
    }
  }

  updatePixels();
}