CameraDevice.hpp

/*
This library is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 2.1 of the License, or (at your
option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)

This library 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 Lesser General Public License for
more details.

You should have received a copy of the GNU Lesser General Public License
along with this library; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
*/

#ifndef __CAMERA_DEVICE_HPP__
#define __CAMERA_DEVICE_HPP__

#ifdef __cplusplus
extern "C" {
#endif

#include <libavdevice/avdevice.h>
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libswscale/swscale.h>
#include <libavfilter/avfilter.h>
#include <libavfilter/buffersrc.h>
#include <libavfilter/buffersink.h>

#ifdef __cplusplus
}
#endif

class CameraDevice {
public:
    CameraDevice();

    virtual ~CameraDevice();

    bool Open(const char *format, const char *device, int width, int height, int fps);

    void Close();

    AVFrame* Capture();

    bool IsReady() { return isReady_; }

private:
    AVFormatContext *formatContext_;
    AVPacket *packetRaw_;
    AVCodecContext *codecContextRaw_;
    AVFrame *frameYuyv422_;
#ifdef USE_FFMPEG_DRAWTEXT
    AVFrame *frameYuyv422Watermark_;
    AVFilterGraph *filterGraph_;
    AVFilterContext *filterContextSrc_;
    AVFilterContext *filterContextSink_;
#endif
    bool isReady_;
};


#endif // __CAMERA_DEVICE_HPP__