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#ifndef __OPENCV_SUPERRES_HPP__
#define __OPENCV_SUPERRES_HPP__

#include "opencv2/core.hpp"

namespace cv
{
    namespace superres
    {
        CV_EXPORTS bool initModule_superres();

        class CV_EXPORTS FrameSource
        {
        public:
            virtual ~FrameSource();

            virtual void nextFrame(OutputArray frame) = 0;
            virtual void reset() = 0;
        };

        CV_EXPORTS Ptr<FrameSource> createFrameSource_Empty();

        CV_EXPORTS Ptr<FrameSource> createFrameSource_Video(const cv::String& fileName);
        CV_EXPORTS Ptr<FrameSource> createFrameSource_Video_GPU(const cv::String& fileName);

        CV_EXPORTS Ptr<FrameSource> createFrameSource_Camera(int deviceId = 0);

        class CV_EXPORTS SuperResolution : public cv::Algorithm, public FrameSource
        {
        public:
            void setInput(const Ptr<FrameSource>& frameSource);

            void nextFrame(OutputArray frame);
            void reset();

            virtual void collectGarbage();

        protected:
            SuperResolution();

            virtual void initImpl(Ptr<FrameSource>& frameSource) = 0;
            virtual void processImpl(Ptr<FrameSource>& frameSource, OutputArray output) = 0;

        private:
            Ptr<FrameSource> frameSource_;
            bool firstCall_;
        };

        // S. Farsiu , D. Robinson, M. Elad, P. Milanfar. Fast and robust multiframe super resolution.
        // Dennis Mitzel, Thomas Pock, Thomas Schoenemann, Daniel Cremers. Video Super Resolution using Duality Based TV-L1 Optical Flow.
        CV_EXPORTS Ptr<SuperResolution> createSuperResolution_BTVL1();
        CV_EXPORTS Ptr<SuperResolution> createSuperResolution_BTVL1_GPU();
    }
}

#endif // __OPENCV_SUPERRES_HPP__