root/extra_lib/include/avcap/linux/V4L2_FormatManager.h

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/*
 * (c) 2005, 2008 Nico Pranke <Nico.Pranke@googlemail.com>, Robin Luedtke <RobinLu@gmx.de> 
 *
 * This file is part of avcap.
 *
 * avcap 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.
 *
 * avcap 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 avcap.  If not, see <http://www.gnu.org/licenses/>.
 */

/* avcap is free for non-commercial use.
 * To use it in commercial endeavors, please contact Nico Pranke <Nico.Pranke@googlemail.com>.
 */

#ifndef V4L2_FORMATMANAGER_H_
#define V4L2_FORMATMANAGER_H_

#include "FormatManager.h"

namespace avcap
{
        class V4L2_DeviceDescriptor;
        
        //! This class implements the FormatManager for Video4Linux2 devices. */
        
        class V4L2_FormatManager: public FormatManager
        {
        
        public:
                V4L2_FormatManager(V4L2_DeviceDescriptor *dd);
                
                virtual ~V4L2_FormatManager();
                
                int setFormat(Format *fmt);
                
                int setFormat(unsigned int fourcc);

                Format* getFormat();
                
                int setResolution(int w, int h);

                int setBytesPerLine(int bpl);

                int getWidth();

                int getHeight();
                
                int getBytesPerLine();
                
                int flush();

                size_t getImageSize();
                
                const VideoStandard* getVideoStandard();

                int setVideoStandard(const VideoStandard* std);
                
                int setFramerate(int fps);
                
                int getFramerate();
                
                void query();

        private:
                int tryFormat();
                
                int getParams();
                
                void queryVideoStandards();
                
                void queryResolutions(Format* f);
        
        };
}

#endif // V4L2_FORMATMANAGER_H_
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