#pragma once

#include <av.hpp>
#include <fingerprint_traits.hpp>

#include <boost/serialization/access.hpp>
#include <boost/serialization/vector.hpp>

#include <iosfwd>
#include <vector>

struct downscale {
	std::vector<uint8_t> data;

	static downscale pre_calculate(av::frame const & frame);
	static downscale calculate(av::frame const & frame);
	double distance_to(downscale const & fingerprint) const;

private:
	friend class boost::serialization::access;
	template<class Archive>
	void serialize(Archive & ar, const unsigned int /*version*/){
		ar & data;
	}
};

std::ostream& operator<<(std::ostream& out, downscale const & x);