120ca87015
git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5000 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d
148 lines
4.3 KiB
C++
148 lines
4.3 KiB
C++
/***************************************************************************
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* Copyright (c) Jürgen Riegel (juergen.riegel@web.de) 2007 *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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# include <stdio.h>
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#endif
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#include "CaptureClass.h"
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#ifdef _MSC_VER // this file is not available on Linux
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//# include <cvcam.h>
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#endif
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//---------------------------------------------------------------------------
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/// Constructor with an Capture number, 0 will ask for one
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Capturerer::Capturerer(int num)
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: capture(NULL),captureImage(0),_bIsWinOn(false)
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{
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capture = cvCaptureFromCAM( num );
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if( !capture )
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throw "Cant create capture device";
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hScale=0.5;
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vScale=0.5;
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lineWidth=1;
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useLabel=true;
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// Init font
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cvInitFont(&font,CV_FONT_HERSHEY_SIMPLEX/*|CV_FONT_ITALIC*/, hScale,vScale,0,lineWidth);
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}
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/// Constructor with an File name. Object will capture from that Video file
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Capturerer::Capturerer(const char* fileName)
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: capture(NULL), captureImage(0),_bIsWinOn(false)
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{
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capture = cvCaptureFromAVI( fileName );
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if( !capture )
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throw "Cant create capture device";
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}
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int Capturerer::chooseCamNum(void)
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{
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#if 0
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int ncams = cvcamGetCamerasCount( );//returns the number of available cameras in the system
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//printf("Number of Cams: %d\n",ncams);
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int* out;
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if(ncams >1){
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int nselected = cvcamSelectCamera(&out);
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if(nselected>0)
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printf("the 1-st selected camera is camera number %d", out[0]);
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if(nselected == 2)
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printf("the 2-nd selected camera is camera number %d", out[1]);
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}else if (ncams < 1){
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printf("No camara in system! Terminating.\n");
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return -1;
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}else
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out = new int(0);
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return *out;
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#else
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//FIXME: cvcamGetCamerasCount is not available on Linux
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return -1;
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#endif
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}
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Capturerer::~Capturerer()
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{
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if(_bIsWinOn)
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cvDestroyWindow("Capture");
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if(capture)
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cvReleaseCapture(&capture);
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}
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void Capturerer::setCaptureWindows(bool On)
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{
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if(!_bIsWinOn && On)
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{
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cvNamedWindow( "Capture", 0 );
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_bIsWinOn = true;
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}
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if(_bIsWinOn && !On)
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{
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cvDestroyWindow("Capture");
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_bIsWinOn = false;
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}
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}
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char Capturerer::getOneCapture(const char *text)
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{
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//static int i = 0;
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// Get frame
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IplImage* frame = NULL;
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frame = cvQueryFrame( capture );
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if( !frame )
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throw "Cannot get frame";
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if(! captureImage)
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size = cvGetSize(frame);
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captureImage = cvCreateImage( size, 8, 3 );
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// copy memory frame to image
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cvCopy( frame, captureImage, 0 );
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// Flip
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cvFlip(captureImage, captureImage);
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// label
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if (text)
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cvPutText (captureImage,text, cvPoint(0,size.height - 5) , &font, cvScalar(0,255,0));
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if(_bIsWinOn)
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cvShowImage( "Capture", captureImage );
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return cvWaitKey(1);
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}
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