VideoCapture.cpp

/*
This file is part of BGSLibrary.

BGSLibrary is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

BGSLibrary is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with BGSLibrary.  If not, see <http://www.gnu.org/licenses/>.
*/
#include "VideoCapture.h"
#include <opencv2/highgui/highgui_c.h>

namespace bgslibrary
{
  namespace VC_ROI
  {
    IplImage* img_input1 = 0;
    IplImage* img_input2 = 0;
    int roi_x0 = 0;
    int roi_y0 = 0;
    int roi_x1 = 0;
    int roi_y1 = 0;
    int numOfRec = 0;
    int startDraw = 0;
    bool roi_defined = false;
    bool use_roi = true;
    bool disable_event = false;

    void reset(void)
    {
      disable_event = false;
      startDraw = false;
    }

    void VideoCapture_on_mouse(int evt, int x, int y, int flag, void* param)
    {
      if (use_roi == false || disable_event == true)
        return;

      if (evt == CV_EVENT_LBUTTONDOWN)
      {
        if (!startDraw)
        {
          roi_x0 = x;
          roi_y0 = y;
          startDraw = 1;
        }
        else
        {
          roi_x1 = x;
          roi_y1 = y;
          startDraw = 0;
          roi_defined = true;
          disable_event = true;
        }
      }

      if (evt == CV_EVENT_MOUSEMOVE && startDraw)
      {
        //redraw ROI selection
        img_input2 = cvCloneImage(img_input1);
        cvRectangle(img_input2, cvPoint(roi_x0, roi_y0), cvPoint(x, y), CV_RGB(255, 0, 0), 1);
        cvShowImage("Input", img_input2);