grfmt_jpeg.hpp
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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#ifndef _GRFMT_JPEG_H_
#define _GRFMT_JPEG_H_
#include "grfmt_base.hpp"
#include "bitstrm.hpp"
#ifdef HAVE_JPEG
// IJG-based Jpeg codec
namespace cv
{
/**
* @brief Jpeg markers that can be encountered in a Jpeg file
*/
enum AppMarkerTypes
{
SOI = 0xD8, SOF0 = 0xC0, SOF2 = 0xC2, DHT = 0xC4,
DQT = 0xDB, DRI = 0xDD, SOS = 0xDA,
RST0 = 0xD0, RST1 = 0xD1, RST2 = 0xD2, RST3 = 0xD3,
RST4 = 0xD4, RST5 = 0xD5, RST6 = 0xD6, RST7 = 0xD7,
APP0 = 0xE0, APP1 = 0xE1, APP2 = 0xE2, APP3 = 0xE3,
APP4 = 0xE4, APP5 = 0xE5, APP6 = 0xE6, APP7 = 0xE7,
APP8 = 0xE8, APP9 = 0xE9, APP10 = 0xEA, APP11 = 0xEB,
APP12 = 0xEC, APP13 = 0xED, APP14 = 0xEE, APP15 = 0xEF,
COM = 0xFE, EOI = 0xD9
};
class JpegDecoder CV_FINAL : public BaseImageDecoder
{
public:
JpegDecoder();
virtual ~JpegDecoder();
bool readData( Mat& img ) CV_OVERRIDE;
bool readHeader() CV_OVERRIDE;
void close();
ImageDecoder newDecoder() const CV_OVERRIDE;
protected:
FILE* m_f;
void* m_state;
private:
JpegDecoder(const JpegDecoder &); // copy disabled
JpegDecoder& operator=(const JpegDecoder &); // assign disabled
};
class JpegEncoder CV_FINAL : public BaseImageEncoder
{
public:
JpegEncoder();
virtual ~JpegEncoder();
bool write( const Mat& img, const std::vector<int>& params ) CV_OVERRIDE;
ImageEncoder newEncoder() const CV_OVERRIDE;
};
}
#endif
#endif/*_GRFMT_JPEG_H_*/