root/extra_lib/include/avcap/linux/V4L1_DeviceDescriptor.h

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INCLUDED FROM

/*
 * (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 V4L1_DEVICEDESCRIPTOR_H_
#define V4L1_DEVICEDESCRIPTOR_H_

#include <iostream>

#include "DeviceDescriptor.h"

namespace avcap
{
class CaptureDevice;
class V4L1_Device;

        //! This class uniquely identifies a Video4Linux1 capture device.

        class V4L1_DeviceDescriptor : public DeviceDescriptor
        {
        public:
                struct bounds {
                        unsigned int minwidth, minheight, maxwidth, maxheight;
                };

        private:
                std::string     mName;
                std::string mDriver;
                std::string mCard;
                std::string mInfo;
                std::string mVersionString;

                int mVersion;

                DEV_HANDLE_T mHandle;
                bool mValid;

                // Video4Linux1 specific data
                int             mType;
                bounds  mBounds;
                int     mAudios;
                int             mChannels;
                bool    mIsStreamingDev;

                V4L1_Device*    mDevice;

        public:
                V4L1_DeviceDescriptor(const std::string &name);

                virtual ~V4L1_DeviceDescriptor();

                virtual CaptureDevice* getDevice();

                virtual int open();

                virtual int close();

                virtual const std::string& getName() const;

                inline const std::string& getDriver() const
                        { return mDriver; }

                inline const std::string& getCard() const
                        { return mCard; }

                inline const std::string& getInfo() const
                        { return mInfo; }

                inline int getVersion() const
                        { return mVersion; }

                const std::string& getVersionString() const;

                inline const DEV_HANDLE_T getHandle() const
                        { return mHandle; }

                bool isAVDev() const;

                bool isVideoCaptureDev() const;

                bool isVBIDev() const;

                bool isTuner() const;

                bool isAudioDev() const;

                bool isRadioDev() const;

                bool isOverlayDev() const;

                bool isRWDev () const;

                bool isAsyncIODev() const;

                bool isStreamingDev() const;

                inline int getChannels() const
                        { return mChannels; }

                inline int getAudios() const
                        { return mAudios; }

                //! Returns a reference to the bounds of the video size.
                inline bounds& getBounds()
                        { return mBounds; }

        private:
                bool queryCapabilities();
        };
};

#endif // V4L1_DEVICEDESCRIPTOR_H_
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