input.h

/**************************************************************************************************
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     BSD 3-Clause License (https://www.tldrlegal.com/l/bsd3)
     
     Copyright (c) 2015 Andrés Solís Montero <http://www.solism.ca>, All rights reserved.
     
     
     Redistribution and use in source and binary forms, with or without modification,
     are permitted provided that the following conditions are met:
     
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        this list of conditions and the following disclaimer.
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#ifndef __viva__input__
#define __viva__input__

#include "opencv2/opencv.hpp"
#include "utils.h"
#include <vector>

using namespace cv;
using namespace std;

namespace viva
{

    class Input
    {
    protected:
        Size _size;
        bool _convert;
        int _conversionFlag;
        Size _orgSize;
        
    public:
        Input(const Size &size = Size(-1, -1),
              int conversionFlag = -1):
                _size(size), _convert(false),
                _conversionFlag(conversionFlag)
        {
            if (_conversionFlag != -1)
                _convert = true;
        }
        virtual bool  getFrame(Mat &image) = 0;

        virtual ~Input(){}

        void setConversionType(int flag)
        {
            _conversionFlag = flag;
        }

        size_t getWidth()
        {
            return _size.width;
        }
        size_t getHeight()
        {
            return _size.height;
        }
        Size getOrgSize()
        {
            return _orgSize;
        }
        
    };
    
   
    class VideoInput: public Input
    {
    protected:
        VideoCapture _CameraInput;
        bool _opened;
    public:
        VideoInput(const string &filename, const Size &size = Size(-1,-1), int colorFlag = -1);

        VideoInput(const int id, const Size &size = Size(-1, -1), int colorFlag = -1);

        VideoInput();

        ~VideoInput();

        bool getFrame(Mat &frame);
    };
    
    typedef VideoInput CameraInput;

    typedef VideoInput WebStreamInput;

    typedef VideoInput SequenceInput;
    
    class ImageListInput: public Input
    {
    private:
        vector<string>    _filenames;
        vector<string>::iterator _it;
        int _loops;
        bool _opened;
        
        void initialize();

    public:
        ImageListInput(const string directory,
                       const Size &size = Size(-1,-1),
                       int colorFlag = -1,
                       int loops = 1);
        ImageListInput(const vector<string> &files,
                       const Size &size = Size(-1,-1),
                       int colorFlag = -1,
                       int loops = 1);

        bool getFrame(Mat &frame);
    

    };
}





#endif /* defined(__viva__input__) */