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// Copyright (C) 2018 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
//
/**
* \brief Format reader abstract class implementation
* \file format_reader.h
*/
#pragma once
#include <memory>
#include <string>
#include <vector>
#include<iostream>
#if defined(_WIN32)
# ifdef IMPLEMENT_FORMAT_READER
# define FORMAT_READER_API(type) extern "C" __declspec(dllexport) type
# else
# define FORMAT_READER_API(type) extern "C" type
# endif
#elif(__GNUC__ >= 4)
# ifdef IMPLEMENT_FORMAT_READER
# define FORMAT_READER_API(type) extern "C" __attribute__((visibility("default"))) type
# else
# define FORMAT_READER_API(type) extern "C" type
# endif
#else
# define FORMAT_READER_API(TYPE) extern "C" TYPE
#endif
namespace FormatReader {
/**
* \class FormatReader
* \brief This is an abstract class for reading input data
*/
class Reader {
protected:
/// \brief height
size_t _height = 0;
/// \brief width
size_t _width = 0;
/// \brief data
std::shared_ptr<unsigned char> _data;
public:
/**
* \brief Get width
* @return width
*/
size_t width() const { return _width; }
/**
* \brief Get height
* @return height
*/
size_t height() const { return _height; }
/**
* \brief Get input data ptr
* @return shared pointer with input data
* @In case of using OpenCV, parameters width and height will be used for image resizing
*/
virtual std::shared_ptr<unsigned char> getData(int width = 0, int height = 0) = 0;
/**
* \brief Get size
* @return size
*/
virtual size_t size() const = 0;
virtual void Release() noexcept = 0;
};
} // namespace FormatReader
/**
* \brief Function for create reader
* @return FormatReader pointer
*/
FORMAT_READER_API(FormatReader::Reader*) CreateFormatReader(const char *filename);
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