#include <cv.h>
#include <cvaux.h>
#include <highgui.h>
#include <stdio.h>
#include <math.h>


/*************************************************************/

/** 
 Main
*/
int main( void )
{
  IplImage* Frame = NULL; 
  
  CvCapture* capture = NULL;
  cvNamedWindow( "Video Inicial", CV_WINDOW_AUTOSIZE );
  cvNamedWindow( "Video Final", CV_WINDOW_AUTOSIZE );
 
  capture = cvCaptureFromAVI("c:\users\gattass\publichtml\ra\videos\escala.avi");
  
  if( !capture )
  {
    fprintf(stderr,"Could not initialize capturing...\n");
    return -1;
  }
 CvPoint2D32f* corners;
 int resp;
 int*corner_count=NULL;
 int flags=CV_CALIB_CB_ADAPTIVE_THRESH;
 int pattern_was_found=0;
 CvArr* FrameSaida;
  while(1)
  {
	Frame = cvQueryFrame( capture );
    FrameSaida = cvCloneImage(Frame);
	resp = cvFindChessboardCorners(Frame, cvSize(8,6),corners, corner_count,flags);
	cvDrawChessboardCorners(FrameSaida,cvSize(8,6),corners,48,pattern_was_found);
    //printf("%d",resp);
	cvShowImage("Video Inicial", Frame );
	cvShowImage("Video Final", FrameSaida );
    if(cvWaitKey(1) >= 0) break;
  }
  
  

  /***********************************************************/

  cvReleaseCapture( &capture );
  cvDestroyWindow("Video Inicial");
  cvDestroyWindow("Video Final");


  return 0;
}