85 lines
1.9 KiB
C++
85 lines
1.9 KiB
C++
// Copyright (C) 2018-2022 Intel Corporation
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// SPDX-License-Identifier: Apache-2.0
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//
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/**
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* \brief Format reader abstract class implementation
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* \file format_reader.h
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*/
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#pragma once
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#include <iostream>
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#include <memory>
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#include <string>
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#include <vector>
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#if defined(_WIN32)
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# ifdef IMPLEMENT_FORMAT_READER
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# define FORMAT_READER_API(type) extern "C" __declspec(dllexport) type
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# else
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# define FORMAT_READER_API(type) extern "C" type
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# endif
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#elif (__GNUC__ >= 4)
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# ifdef IMPLEMENT_FORMAT_READER
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# define FORMAT_READER_API(type) extern "C" __attribute__((visibility("default"))) type
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# else
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# define FORMAT_READER_API(type) extern "C" type
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# endif
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#else
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# define FORMAT_READER_API(TYPE) extern "C" TYPE
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#endif
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namespace FormatReader {
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/**
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* \class FormatReader
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* \brief This is an abstract class for reading input data
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*/
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class Reader {
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protected:
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/// \brief height
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size_t _height = 0;
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/// \brief width
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size_t _width = 0;
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/// \brief data
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std::shared_ptr<unsigned char> _data;
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public:
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virtual ~Reader() = default;
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/**
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* \brief Get width
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* @return width
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*/
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size_t width() const {
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return _width;
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}
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/**
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* \brief Get height
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* @return height
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*/
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size_t height() const {
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return _height;
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}
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/**
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* \brief Get input data ptr
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* @return shared pointer with input data
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* @In case of using OpenCV, parameters width and height will be used for image resizing
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*/
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virtual std::shared_ptr<unsigned char> getData(size_t width = 0, size_t height = 0) = 0;
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/**
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* \brief Get size
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* @return size
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*/
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virtual size_t size() const = 0;
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};
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} // namespace FormatReader
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/**
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* \brief Function for create reader
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* @return FormatReader pointer
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*/
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FORMAT_READER_API(FormatReader::Reader*) CreateFormatReader(const char* filename);
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