File indexing completed on 2024-05-12 16:23:35

 /***************************************************************************
  *   Copyright (C) 2005-2008 by Bjoern Erik Nilsen & Fredrik Berg Kjoelstad*
  *   bjoern.nilsen@bjoernen.com & fredrikbk@hotmail.com                    *
  *                                                                         *
  *   This program 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 2 of the License, or     *
  *   (at your option) any later version.                                   *
  *                                                                         *
  *   This program 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 this program; if not, write to the                         *
  *   Free Software Foundation, Inc.,                                       *
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 #ifndef COMMANDLINEGRABBER_H
 #define COMMANDLINEGRABBER_H
 
 #include "src/config.h"
 #include "imagegrabber.h"
 
 #include <string>
 using std::string;
 
 
 /**
  * Abstract class for the different video grabbers used by the VideoView
  * widgets.
  *
  * @author Bjoern Erik Nilsen & Fredrik Berg Kjoelstad
  */
 class CommandLineGrabber : public ImageGrabber {
 public:
     /**
      * Initializes the member variables.
      * @param filePath path to the output file grabbed from a device
      * @param prePoll the pre-poll command to be run before grabbing
      * @param startProcess command line for starting the process
      * @param stopProcess command line for stopping the process
      * @param isProcess true if the process is running in daemon mode, false otherwise
      */
     CommandLineGrabber(const char* filePath);
     ~CommandLineGrabber();
     bool setPrePollCommand(const char *command);
     bool setStartCommand(const char *command);
     bool setStopCommand(const char *command);
     bool isGrabberProcess();
     
     /**
      * Starts the grabber if it is marked to be run in daemon mode.
      * @return true on success, false otherwise
      */
     bool init();
     
     /**
      * Grabs one picture from the device.
      * @return true on success, false otherwise
      */
     bool grab();
     
     /**
      * Shut downs the grabber process either if it is run in daemon
      * mode or "single grab" mode.
      * @return true on success, false otherwise
      */
     bool tearDown();
 
 private:
     string prePoll;
     string startProcess;
     string stopProcess;
     bool isInitSuccess;
     
     string parseCommand(const char* command);
 };
 
 #endif