1547 lines
48 KiB
C
1547 lines
48 KiB
C
/*
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* Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
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* Copyright (c) 2002-2007, Professor Benoit Macq
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* Copyright (c) 2001-2003, David Janssens
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* Copyright (c) 2002-2003, Yannick Verschueren
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* Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
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* Copyright (c) 2005, Herve Drolon, FreeImage Team
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* Copyright (c) 2006-2007, Parvatha Elangovan
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* Copyright (c) 2008, Jerome Fimes, Communications & Systemes <jerome.fimes@c-s.fr>
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* Copyright (c) 2010-2011, Kaori Hagihara
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* Copyright (c) 2011, Mickael Savinaud, Communications & Systemes <mickael.savinaud@c-s.fr>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef OPENJPEG_H
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#define OPENJPEG_H
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/*
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==========================================================
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Compiler directives
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==========================================================
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*/
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/* deprecated attribute */
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#ifdef __GNUC__
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#define DEPRECATED(func) func __attribute__ ((deprecated))
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#elif defined(_MSC_VER)
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#define DEPRECATED(func) __declspec(deprecated) func
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#else
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#pragma message("WARNING: You need to implement DEPRECATED for this compiler")
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#define DEPRECATED(func) func
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#endif
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#if defined(OPJ_STATIC) || !defined(_WIN32)
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/* http://gcc.gnu.org/wiki/Visibility */
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#if __GNUC__ >= 4
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#define OPJ_API __attribute__ ((visibility ("default")))
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#define OPJ_LOCAL __attribute__ ((visibility ("hidden")))
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#else
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#define OPJ_API
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#define OPJ_LOCAL
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#endif
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#define OPJ_CALLCONV
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#else
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#define OPJ_CALLCONV __stdcall
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/*
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The following ifdef block is the standard way of creating macros which make exporting
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from a DLL simpler. All files within this DLL are compiled with the OPJ_EXPORTS
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symbol defined on the command line. this symbol should not be defined on any project
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that uses this DLL. This way any other project whose source files include this file see
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OPJ_API functions as being imported from a DLL, wheras this DLL sees symbols
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defined with this macro as being exported.
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*/
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#if defined(OPJ_EXPORTS) || defined(DLL_EXPORT)
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#define OPJ_API __declspec(dllexport)
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#else
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#define OPJ_API __declspec(dllimport)
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#endif /* OPJ_EXPORTS */
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#endif /* !OPJ_STATIC || !_WIN32 */
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typedef int opj_bool; /*FIXME it should be to follow the name of others OPJ_TYPE -> OPJ_BOOL*/
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#define OPJ_TRUE 1
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#define OPJ_FALSE 0
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typedef char OPJ_CHAR;
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typedef float OPJ_FLOAT32;
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typedef double OPJ_FLOAT64;
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typedef unsigned char OPJ_BYTE;
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#include "opj_stdint.h"
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typedef int8_t OPJ_INT8;
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typedef uint8_t OPJ_UINT8;
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typedef int16_t OPJ_INT16;
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typedef uint16_t OPJ_UINT16;
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typedef int32_t OPJ_INT32;
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typedef uint32_t OPJ_UINT32;
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typedef int64_t OPJ_INT64;
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typedef uint64_t OPJ_UINT64;
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/* Avoid compile-time warning because parameter is not used */
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#define OPJ_ARG_NOT_USED(x) (void)(x)
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/*
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==========================================================
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Useful constant definitions
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==========================================================
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*/
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#define OPJ_PATH_LEN 4096 /**< Maximum allowed size for filenames */
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#define J2K_MAXRLVLS 33 /**< Number of maximum resolution level authorized */
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#define J2K_MAXBANDS (3*J2K_MAXRLVLS-2) /**< Number of maximum sub-band linked to number of resolution level */
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#define J2K_DEFAULT_NB_SEGS 10
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#define J2K_STREAM_CHUNK_SIZE 0x100000 /** 1 mega by default */
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#define J2K_DEFAULT_HEADER_SIZE 1000
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#define J2K_MCC_DEFAULT_NB_RECORDS 10
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#define J2K_MCT_DEFAULT_NB_RECORDS 10
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/* UniPG>> */
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#define JPWL_MAX_NO_TILESPECS 16 /**< Maximum number of tile parts expected by JPWL: increase at your will */
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#define JPWL_MAX_NO_PACKSPECS 16 /**< Maximum number of packet parts expected by JPWL: increase at your will */
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#define JPWL_MAX_NO_MARKERS 512 /**< Maximum number of JPWL markers: increase at your will */
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#define JPWL_PRIVATEINDEX_NAME "jpwl_index_privatefilename" /**< index file name used when JPWL is on */
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#define JPWL_EXPECTED_COMPONENTS 3 /**< Expect this number of components, so you'll find better the first EPB */
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#define JPWL_MAXIMUM_TILES 8192 /**< Expect this maximum number of tiles, to avoid some crashes */
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#define JPWL_MAXIMUM_HAMMING 2 /**< Expect this maximum number of bit errors in marker id's */
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#define JPWL_MAXIMUM_EPB_ROOM 65450 /**< Expect this maximum number of bytes for composition of EPBs */
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/* <<UniPG */
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/**
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* FIXME EXPERIMENTAL FOR THE MOMENT
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* Supported options about file information
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*/
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#define OPJ_IMG_INFO 1 /**< Basic image information provided to the user */
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#define OPJ_J2K_MH_INFO 2 /**< Codestream information based only on the main header */
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#define OPJ_J2K_TH_INFO 4 /**< Tile information based on the current tile header */
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/*FIXME #define OPJ_J2K_CSTR_INFO 6*/ /**< */
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#define OPJ_J2K_MH_IND 16 /**< Codestream index based only on the main header */
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#define OPJ_J2K_TH_IND 32 /**< Tile index based on the current tile */
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/*FIXME #define OPJ_J2K_CSTR_IND 48*/ /**< */
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#define OPJ_JP2_INFO 128 /**< JP2 file information */
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#define OPJ_JP2_IND 256 /**< JP2 file index */
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/*
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==========================================================
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enum definitions
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==========================================================
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*/
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/**
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* Rsiz Capabilities
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* */
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typedef enum RSIZ_CAPABILITIES {
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STD_RSIZ = 0, /** Standard JPEG2000 profile*/
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CINEMA2K = 3, /** Profile name for a 2K image*/
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CINEMA4K = 4, /** Profile name for a 4K image*/
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MCT = 0x8100
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} OPJ_RSIZ_CAPABILITIES;
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/**
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* Digital cinema operation mode
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* */
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typedef enum CINEMA_MODE {
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OFF = 0, /** Not Digital Cinema*/
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CINEMA2K_24 = 1, /** 2K Digital Cinema at 24 fps*/
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CINEMA2K_48 = 2, /** 2K Digital Cinema at 48 fps*/
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CINEMA4K_24 = 3 /** 4K Digital Cinema at 24 fps*/
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}OPJ_CINEMA_MODE;
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/**
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* Progression order
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* */
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typedef enum PROG_ORDER {
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PROG_UNKNOWN = -1, /**< place-holder */
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LRCP = 0, /**< layer-resolution-component-precinct order */
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RLCP = 1, /**< resolution-layer-component-precinct order */
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RPCL = 2, /**< resolution-precinct-component-layer order */
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PCRL = 3, /**< precinct-component-resolution-layer order */
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CPRL = 4 /**< component-precinct-resolution-layer order */
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} OPJ_PROG_ORDER;
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/**
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* Supported image color spaces
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*/
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typedef enum COLOR_SPACE {
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CLRSPC_UNKNOWN = -1, /**< not supported by the library */
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CLRSPC_UNSPECIFIED = 0, /**< not specified in the codestream */
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CLRSPC_SRGB = 1, /**< sRGB */
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CLRSPC_GRAY = 2, /**< grayscale */
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CLRSPC_SYCC = 3 /**< YUV */
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} OPJ_COLOR_SPACE;
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/**
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* Supported codec
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*/
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typedef enum CODEC_FORMAT {
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CODEC_UNKNOWN = -1, /**< place-holder */
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CODEC_J2K = 0, /**< JPEG-2000 codestream : read/write */
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CODEC_JPT = 1, /**< JPT-stream (JPEG 2000, JPIP) : read only */
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CODEC_JP2 = 2 /**< JPEG-2000 file format : read/write */
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} OPJ_CODEC_FORMAT;
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/**
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* Limit decoding to certain portions of the codestream.
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*/
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typedef enum LIMIT_DECODING {
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NO_LIMITATION = 0, /**< No limitation for the decoding. The entire codestream will de decoded */
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LIMIT_TO_MAIN_HEADER = 1, /**< The decoding is limited to the Main Header */
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DECODE_ALL_BUT_PACKETS = 2 /**< Decode everything except the JPEG 2000 packets */
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} OPJ_LIMIT_DECODING;
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/*
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==========================================================
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event manager typedef definitions
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==========================================================
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*/
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/**
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* Callback function prototype for events
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* @param msg Event message
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* @param client_data
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* */
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typedef void (*opj_msg_callback) (const char *msg, void *client_data);
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/** SHOULD BE MOVE IN EVET.H when we remove old functions TODO MSD
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Message handler object
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used for
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<ul>
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<li>Error messages
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<li>Warning messages
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<li>Debugging messages
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</ul>
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*/
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typedef struct opj_event_mgr
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{
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/** Data to call the event manager upon */
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void * m_error_data;
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/** Data to call the event manager upon */
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void * m_warning_data;
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/** Data to call the event manager upon */
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void * m_info_data;
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/** Error message callback if available, NULL otherwise */
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opj_msg_callback error_handler;
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/** Warning message callback if available, NULL otherwise */
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opj_msg_callback warning_handler;
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/** Debug message callback if available, NULL otherwise */
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opj_msg_callback info_handler;
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} opj_event_mgr_t;
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/*
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==========================================================
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codec typedef definitions
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==========================================================
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*/
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/**
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* Progression order changes
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*
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*/
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typedef struct opj_poc {
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/** Resolution num start, Component num start, given by POC */
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OPJ_UINT32 resno0, compno0;
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/** Layer num end,Resolution num end, Component num end, given by POC */
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OPJ_UINT32 layno1, resno1, compno1;
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/** Layer num start,Precinct num start, Precinct num end */
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int layno0, precno0, precno1;
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/** Progression order enum*/
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OPJ_PROG_ORDER prg1,prg;
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/** Progression order string*/
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char progorder[5];
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/** Tile number */
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int tile;
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/** Start and end values for Tile width and height*/
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int tx0,tx1,ty0,ty1;
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/** Start value, initialised in pi_initialise_encode*/
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int layS, resS, compS, prcS;
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/** End value, initialised in pi_initialise_encode */
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int layE, resE, compE, prcE;
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/** Start and end values of Tile width and height, initialised in pi_initialise_encode*/
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int txS,txE,tyS,tyE,dx,dy;
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/** Temporary values for Tile parts, initialised in pi_create_encode */
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int lay_t, res_t, comp_t, prc_t,tx0_t,ty0_t;
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} opj_poc_t;
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/**
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* Compression parameters
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* */
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typedef struct opj_cparameters {
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/** size of tile: tile_size_on = false (not in argument) or = true (in argument) */
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opj_bool tile_size_on;
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/** XTOsiz */
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int cp_tx0;
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/** YTOsiz */
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int cp_ty0;
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/** XTsiz */
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int cp_tdx;
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/** YTsiz */
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int cp_tdy;
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/** allocation by rate/distortion */
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int cp_disto_alloc;
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/** allocation by fixed layer */
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int cp_fixed_alloc;
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/** add fixed_quality */
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int cp_fixed_quality;
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/** fixed layer */
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int *cp_matrice;
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/** comment for coding */
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char *cp_comment;
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/** csty : coding style */
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int csty;
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/** progression order (default LRCP) */
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OPJ_PROG_ORDER prog_order;
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/** progression order changes */
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opj_poc_t POC[32];
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/** number of progression order changes (POC), default to 0 */
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int numpocs;
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/** number of layers */
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int tcp_numlayers;
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/** rates of layers */
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float tcp_rates[100];
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/** different psnr for successive layers */
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float tcp_distoratio[100];
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/** number of resolutions */
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int numresolution;
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/** initial code block width, default to 64 */
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int cblockw_init;
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/** initial code block height, default to 64 */
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int cblockh_init;
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/** mode switch (cblk_style) */
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int mode;
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/** 1 : use the irreversible DWT 9-7, 0 : use lossless compression (default) */
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int irreversible;
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/** region of interest: affected component in [0..3], -1 means no ROI */
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int roi_compno;
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/** region of interest: upshift value */
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int roi_shift;
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/* number of precinct size specifications */
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int res_spec;
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/** initial precinct width */
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int prcw_init[J2K_MAXRLVLS];
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/** initial precinct height */
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int prch_init[J2K_MAXRLVLS];
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/**@name command line encoder parameters (not used inside the library) */
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/*@{*/
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/** input file name */
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char infile[OPJ_PATH_LEN];
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/** output file name */
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char outfile[OPJ_PATH_LEN];
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/** DEPRECATED. Index generation is now handeld with the opj_encode_with_info() function. Set to NULL */
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int index_on;
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/** DEPRECATED. Index generation is now handeld with the opj_encode_with_info() function. Set to NULL */
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char index[OPJ_PATH_LEN];
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/** subimage encoding: origin image offset in x direction */
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int image_offset_x0;
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/** subimage encoding: origin image offset in y direction */
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int image_offset_y0;
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/** subsampling value for dx */
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int subsampling_dx;
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/** subsampling value for dy */
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int subsampling_dy;
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/** input file format 0: PGX, 1: PxM, 2: BMP 3:TIF*/
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int decod_format;
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/** output file format 0: J2K, 1: JP2, 2: JPT */
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int cod_format;
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/*@}*/
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/* UniPG>> */
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/**@name JPWL encoding parameters */
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/*@{*/
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/** enables writing of EPC in MH, thus activating JPWL */
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opj_bool jpwl_epc_on;
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/** error protection method for MH (0,1,16,32,37-128) */
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int jpwl_hprot_MH;
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/** tile number of header protection specification (>=0) */
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int jpwl_hprot_TPH_tileno[JPWL_MAX_NO_TILESPECS];
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/** error protection methods for TPHs (0,1,16,32,37-128) */
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int jpwl_hprot_TPH[JPWL_MAX_NO_TILESPECS];
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/** tile number of packet protection specification (>=0) */
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int jpwl_pprot_tileno[JPWL_MAX_NO_PACKSPECS];
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/** packet number of packet protection specification (>=0) */
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int jpwl_pprot_packno[JPWL_MAX_NO_PACKSPECS];
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/** error protection methods for packets (0,1,16,32,37-128) */
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int jpwl_pprot[JPWL_MAX_NO_PACKSPECS];
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/** enables writing of ESD, (0=no/1/2 bytes) */
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int jpwl_sens_size;
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/** sensitivity addressing size (0=auto/2/4 bytes) */
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int jpwl_sens_addr;
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/** sensitivity range (0-3) */
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int jpwl_sens_range;
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/** sensitivity method for MH (-1=no,0-7) */
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int jpwl_sens_MH;
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/** tile number of sensitivity specification (>=0) */
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int jpwl_sens_TPH_tileno[JPWL_MAX_NO_TILESPECS];
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/** sensitivity methods for TPHs (-1=no,0-7) */
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int jpwl_sens_TPH[JPWL_MAX_NO_TILESPECS];
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/*@}*/
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/* <<UniPG */
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/** Digital Cinema compliance 0-not compliant, 1-compliant*/
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OPJ_CINEMA_MODE cp_cinema;
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/** Maximum rate for each component. If == 0, component size limitation is not considered */
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int max_comp_size;
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/** Profile name*/
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OPJ_RSIZ_CAPABILITIES cp_rsiz;
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/** Tile part generation*/
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char tp_on;
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/** Flag for Tile part generation*/
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char tp_flag;
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/** MCT (multiple component transform) */
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char tcp_mct;
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/** Enable JPIP indexing*/
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opj_bool jpip_on;
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/** Naive implementation of MCT restricted to a single reversible array based encoding without offset concerning all the components. */
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void * mct_data;
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} opj_cparameters_t;
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#define OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG 0x0001
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/**
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* Decompression parameters
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* */
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typedef struct opj_dparameters {
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/**
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Set the number of highest resolution levels to be discarded.
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The image resolution is effectively divided by 2 to the power of the number of discarded levels.
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The reduce factor is limited by the smallest total number of decomposition levels among tiles.
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if != 0, then original dimension divided by 2^(reduce);
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if == 0 or not used, image is decoded to the full resolution
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*/
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int cp_reduce;
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/**
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Set the maximum number of quality layers to decode.
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If there are less quality layers than the specified number, all the quality layers are decoded.
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if != 0, then only the first "layer" layers are decoded;
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if == 0 or not used, all the quality layers are decoded
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*/
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int cp_layer;
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/**@name command line decoder parameters (not used inside the library) */
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/*@{*/
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/** input file name */
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char infile[OPJ_PATH_LEN];
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/** output file name */
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char outfile[OPJ_PATH_LEN];
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/** input file format 0: J2K, 1: JP2, 2: JPT */
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int decod_format;
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/** output file format 0: PGX, 1: PxM, 2: BMP */
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int cod_format;
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/** Decoding area left boundary */
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OPJ_UINT32 DA_x0;
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/** Decoding area right boundary */
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OPJ_UINT32 DA_x1;
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/** Decoding area up boundary */
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OPJ_UINT32 DA_y0;
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/** Decoding area bottom boundary */
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OPJ_UINT32 DA_y1;
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/** Verbose mode */
|
|
opj_bool m_verbose;
|
|
|
|
/** tile number ot the decoded tile*/
|
|
OPJ_UINT32 tile_index;
|
|
/** Nb of tile to decode */
|
|
OPJ_UINT32 nb_tile_to_decode;
|
|
|
|
/*@}*/
|
|
|
|
/* UniPG>> */
|
|
/**@name JPWL decoding parameters */
|
|
/*@{*/
|
|
/** activates the JPWL correction capabilities */
|
|
opj_bool jpwl_correct;
|
|
/** expected number of components */
|
|
int jpwl_exp_comps;
|
|
/** maximum number of tiles */
|
|
int jpwl_max_tiles;
|
|
/*@}*/
|
|
/* <<UniPG */
|
|
|
|
/**
|
|
Specify whether the decoding should be done on the entire codestream, or be limited to the main header
|
|
Limiting the decoding to the main header makes it possible to extract the characteristics of the codestream
|
|
if == NO_LIMITATION, the entire codestream is decoded;
|
|
if == LIMIT_TO_MAIN_HEADER, only the main header is decoded;
|
|
*/
|
|
OPJ_LIMIT_DECODING cp_limit_decoding;
|
|
|
|
unsigned int flags;
|
|
} opj_dparameters_t;
|
|
|
|
|
|
/* ---> FIXME V1 style */
|
|
/** Common fields between JPEG-2000 compression and decompression master structs. */
|
|
|
|
#define opj_common_fields \
|
|
opj_event_mgr_t *event_mgr; /**< pointer to the event manager */\
|
|
void * client_data; /**< Available for use by application */\
|
|
opj_bool is_decompressor; /**< So common code can tell which is which */\
|
|
OPJ_CODEC_FORMAT codec_format; /**< selected codec */\
|
|
void *j2k_handle; /**< pointer to the J2K codec */\
|
|
void *jp2_handle; /**< pointer to the JP2 codec */\
|
|
void *mj2_handle /**< pointer to the MJ2 codec */
|
|
|
|
/* Routines that are to be used by both halves of the library are declared
|
|
* to receive a pointer to this structure. There are no actual instances of
|
|
* opj_common_struct_t, only of opj_cinfo_t and opj_dinfo_t.
|
|
*/
|
|
typedef struct opj_common_struct {
|
|
opj_common_fields; /* Fields common to both master struct types */
|
|
/* Additional fields follow in an actual opj_cinfo_t or
|
|
* opj_dinfo_t. All three structs must agree on these
|
|
* initial fields! (This would be a lot cleaner in C++.)
|
|
*/
|
|
} opj_common_struct_t;
|
|
|
|
typedef opj_common_struct_t * opj_common_ptr;
|
|
|
|
/**
|
|
* Compression context info
|
|
* */
|
|
typedef struct opj_cinfo {
|
|
/** Fields shared with opj_dinfo_t */
|
|
opj_common_fields;
|
|
/* other specific fields go here */
|
|
} opj_cinfo_t;
|
|
|
|
/**
|
|
* Decompression context info
|
|
* */
|
|
typedef struct opj_dinfo {
|
|
/** Fields shared with opj_cinfo_t */
|
|
opj_common_fields;
|
|
/* other specific fields go here */
|
|
} opj_dinfo_t;
|
|
|
|
/* <--- V1 style */
|
|
|
|
/**
|
|
* JPEG2000 codec V2.
|
|
* */
|
|
typedef void * opj_codec_t;
|
|
|
|
/*
|
|
==========================================================
|
|
I/O stream typedef definitions
|
|
==========================================================
|
|
*/
|
|
|
|
/*
|
|
* Stream open flags.
|
|
*/
|
|
/** The stream was opened for reading. */
|
|
#define OPJ_STREAM_READ 0x0001
|
|
/** The stream was opened for writing. */
|
|
#define OPJ_STREAM_WRITE 0x0002
|
|
|
|
/**
|
|
Byte input-output stream (CIO)
|
|
DEPRECATED
|
|
*/
|
|
typedef struct opj_cio {
|
|
/** codec context */
|
|
opj_common_ptr cinfo;
|
|
|
|
/** open mode (read/write) either OPJ_STREAM_READ or OPJ_STREAM_WRITE */
|
|
int openmode;
|
|
/** pointer to the start of the buffer */
|
|
unsigned char *buffer;
|
|
/** buffer size in bytes */
|
|
/* FIXME: MM length is 'int' ?? */
|
|
int length;
|
|
|
|
/** pointer to the start of the stream */
|
|
unsigned char *start;
|
|
/** pointer to the end of the stream */
|
|
unsigned char *end;
|
|
/** pointer to the current position */
|
|
unsigned char *bp;
|
|
} opj_cio_t;
|
|
|
|
|
|
/*
|
|
* FIXME DOC
|
|
*/
|
|
typedef OPJ_SIZE_T (* opj_stream_read_fn) (void * p_buffer, OPJ_SIZE_T p_nb_bytes, void * p_user_data) ;
|
|
typedef OPJ_SIZE_T (* opj_stream_write_fn) (void * p_buffer, OPJ_SIZE_T p_nb_bytes, void * p_user_data) ;
|
|
typedef OPJ_OFF_T (* opj_stream_skip_fn) (OPJ_OFF_T p_nb_bytes, void * p_user_data) ;
|
|
typedef opj_bool (* opj_stream_seek_fn) (OPJ_OFF_T p_nb_bytes, void * p_user_data) ;
|
|
|
|
/*
|
|
* JPEG2000 Stream.
|
|
*/
|
|
typedef void * opj_stream_t;
|
|
|
|
/*
|
|
==========================================================
|
|
image typedef definitions
|
|
==========================================================
|
|
*/
|
|
|
|
/**
|
|
* Defines a single image component
|
|
* */
|
|
typedef struct opj_image_comp {
|
|
/** XRsiz: horizontal separation of a sample of ith component with respect to the reference grid */
|
|
OPJ_UINT32 dx;
|
|
/** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
|
|
OPJ_UINT32 dy;
|
|
/** data width */
|
|
OPJ_UINT32 w;
|
|
/** data height */
|
|
OPJ_UINT32 h;
|
|
/** x component offset compared to the whole image */
|
|
OPJ_UINT32 x0;
|
|
/** y component offset compared to the whole image */
|
|
OPJ_UINT32 y0;
|
|
/** precision */
|
|
OPJ_UINT32 prec;
|
|
/** image depth in bits */
|
|
OPJ_UINT32 bpp;
|
|
/** signed (1) / unsigned (0) */
|
|
OPJ_UINT32 sgnd;
|
|
/** number of decoded resolution */
|
|
OPJ_UINT32 resno_decoded;
|
|
/** number of division by 2 of the out image compared to the original size of image */
|
|
OPJ_UINT32 factor;
|
|
/** image component data */
|
|
OPJ_INT32 *data;
|
|
} opj_image_comp_t;
|
|
|
|
/**
|
|
* Defines image data and characteristics
|
|
* */
|
|
typedef struct opj_image {
|
|
/** XOsiz: horizontal offset from the origin of the reference grid to the left side of the image area */
|
|
OPJ_UINT32 x0;
|
|
/** YOsiz: vertical offset from the origin of the reference grid to the top side of the image area */
|
|
OPJ_UINT32 y0;
|
|
/** Xsiz: width of the reference grid */
|
|
OPJ_UINT32 x1;
|
|
/** Ysiz: height of the reference grid */
|
|
OPJ_UINT32 y1;
|
|
/** number of components in the image */
|
|
OPJ_UINT32 numcomps;
|
|
/** color space: sRGB, Greyscale or YUV */
|
|
OPJ_COLOR_SPACE color_space;
|
|
/** image components */
|
|
opj_image_comp_t *comps;
|
|
/** 'restricted' ICC profile */
|
|
OPJ_BYTE *icc_profile_buf;
|
|
/** size of ICC profile */
|
|
OPJ_UINT32 icc_profile_len;
|
|
} opj_image_t;
|
|
|
|
|
|
/**
|
|
* Component parameters structure used by the opj_image_create function
|
|
* */
|
|
typedef struct opj_image_comptparm {
|
|
/** XRsiz: horizontal separation of a sample of ith component with respect to the reference grid */
|
|
OPJ_UINT32 dx;
|
|
/** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
|
|
OPJ_UINT32 dy;
|
|
/** data width */
|
|
OPJ_UINT32 w;
|
|
/** data height */
|
|
OPJ_UINT32 h;
|
|
/** x component offset compared to the whole image */
|
|
OPJ_UINT32 x0;
|
|
/** y component offset compared to the whole image */
|
|
OPJ_UINT32 y0;
|
|
/** precision */
|
|
OPJ_UINT32 prec;
|
|
/** image depth in bits */
|
|
OPJ_UINT32 bpp;
|
|
/** signed (1) / unsigned (0) */
|
|
OPJ_UINT32 sgnd;
|
|
} opj_image_cmptparm_t;
|
|
|
|
|
|
/*
|
|
==========================================================
|
|
Information on the JPEG 2000 codestream
|
|
==========================================================
|
|
*/
|
|
|
|
/**
|
|
* Index structure : Information concerning a packet inside tile
|
|
* */
|
|
typedef struct opj_packet_info {
|
|
/** packet start position (including SOP marker if it exists) */
|
|
OPJ_OFF_T start_pos;
|
|
/** end of packet header position (including EPH marker if it exists)*/
|
|
OPJ_OFF_T end_ph_pos;
|
|
/** packet end position */
|
|
OPJ_OFF_T end_pos;
|
|
/** packet distorsion */
|
|
double disto;
|
|
} opj_packet_info_t;
|
|
|
|
|
|
/* UniPG>> */
|
|
/**
|
|
* Marker structure
|
|
* */
|
|
typedef struct opj_marker_info_t {
|
|
/** marker type */
|
|
unsigned short int type;
|
|
/** position in codestream */
|
|
OPJ_OFF_T pos;
|
|
/** length, marker val included */
|
|
int len;
|
|
} opj_marker_info_t;
|
|
/* <<UniPG */
|
|
|
|
/**
|
|
* Index structure : Information concerning tile-parts
|
|
*/
|
|
typedef struct opj_tp_info {
|
|
/** start position of tile part */
|
|
int tp_start_pos;
|
|
/** end position of tile part header */
|
|
int tp_end_header;
|
|
/** end position of tile part */
|
|
int tp_end_pos;
|
|
/** start packet of tile part */
|
|
int tp_start_pack;
|
|
/** number of packets of tile part */
|
|
int tp_numpacks;
|
|
} opj_tp_info_t;
|
|
|
|
/**
|
|
* Index structure : information regarding tiles
|
|
*/
|
|
typedef struct opj_tile_info {
|
|
/** value of thresh for each layer by tile cfr. Marcela */
|
|
double *thresh;
|
|
/** number of tile */
|
|
int tileno;
|
|
/** start position */
|
|
int start_pos;
|
|
/** end position of the header */
|
|
int end_header;
|
|
/** end position */
|
|
int end_pos;
|
|
/** precinct number for each resolution level (width) */
|
|
int pw[33];
|
|
/** precinct number for each resolution level (height) */
|
|
int ph[33];
|
|
/** precinct size (in power of 2), in X for each resolution level */
|
|
int pdx[33];
|
|
/** precinct size (in power of 2), in Y for each resolution level */
|
|
int pdy[33];
|
|
/** information concerning packets inside tile */
|
|
opj_packet_info_t *packet;
|
|
/** add fixed_quality */
|
|
int numpix;
|
|
/** add fixed_quality */
|
|
double distotile;
|
|
/** number of markers */
|
|
int marknum;
|
|
/** list of markers */
|
|
opj_marker_info_t *marker;
|
|
/** actual size of markers array */
|
|
int maxmarknum;
|
|
/** number of tile parts */
|
|
int num_tps;
|
|
/** information concerning tile parts */
|
|
opj_tp_info_t *tp;
|
|
} opj_tile_info_t;
|
|
|
|
/**
|
|
* Index structure of the codestream
|
|
*/
|
|
typedef struct opj_codestream_info {
|
|
/** maximum distortion reduction on the whole image (add for Marcela) */
|
|
double D_max;
|
|
/** packet number */
|
|
int packno;
|
|
/** writing the packet in the index with t2_encode_packets */
|
|
int index_write;
|
|
/** image width */
|
|
int image_w;
|
|
/** image height */
|
|
int image_h;
|
|
/** progression order */
|
|
OPJ_PROG_ORDER prog;
|
|
/** tile size in x */
|
|
int tile_x;
|
|
/** tile size in y */
|
|
int tile_y;
|
|
/** */
|
|
int tile_Ox;
|
|
/** */
|
|
int tile_Oy;
|
|
/** number of tiles in X */
|
|
int tw;
|
|
/** number of tiles in Y */
|
|
int th;
|
|
/** component numbers */
|
|
int numcomps;
|
|
/** number of layer */
|
|
int numlayers;
|
|
/** number of decomposition for each component */
|
|
int *numdecompos;
|
|
/* UniPG>> */
|
|
/** number of markers */
|
|
int marknum;
|
|
/** list of markers */
|
|
opj_marker_info_t *marker;
|
|
/** actual size of markers array */
|
|
int maxmarknum;
|
|
/* <<UniPG */
|
|
/** main header position */
|
|
int main_head_start;
|
|
/** main header position */
|
|
int main_head_end;
|
|
/** codestream's size */
|
|
int codestream_size;
|
|
/** information regarding tiles inside image */
|
|
opj_tile_info_t *tile;
|
|
} opj_codestream_info_t;
|
|
|
|
/* <----------------------------------------------------------- */
|
|
/* new output managment of the codestream information and index */
|
|
|
|
/**
|
|
* Tile-component coding parameters information
|
|
*/
|
|
typedef struct opj_tccp_info
|
|
{
|
|
/** component index */
|
|
OPJ_UINT32 compno;
|
|
/** coding style */
|
|
OPJ_UINT32 csty;
|
|
/** number of resolutions */
|
|
OPJ_UINT32 numresolutions;
|
|
/** code-blocks width */
|
|
OPJ_UINT32 cblkw;
|
|
/** code-blocks height */
|
|
OPJ_UINT32 cblkh;
|
|
/** code-block coding style */
|
|
OPJ_UINT32 cblksty;
|
|
/** discrete wavelet transform identifier */
|
|
OPJ_UINT32 qmfbid;
|
|
/** quantisation style */
|
|
OPJ_UINT32 qntsty;
|
|
/** stepsizes used for quantization */
|
|
OPJ_UINT32 stepsizes_mant[J2K_MAXBANDS];
|
|
/** stepsizes used for quantization */
|
|
OPJ_UINT32 stepsizes_expn[J2K_MAXBANDS];
|
|
/** number of guard bits */
|
|
OPJ_UINT32 numgbits;
|
|
/** Region Of Interest shift */
|
|
OPJ_INT32 roishift;
|
|
/** precinct width */
|
|
OPJ_UINT32 prcw[J2K_MAXRLVLS];
|
|
/** precinct height */
|
|
OPJ_UINT32 prch[J2K_MAXRLVLS];
|
|
}
|
|
opj_tccp_info_t;
|
|
|
|
/**
|
|
* Tile coding parameters information
|
|
*/
|
|
typedef struct opj_tile_v2_info {
|
|
|
|
/** number (index) of tile */
|
|
int tileno;
|
|
/** coding style */
|
|
OPJ_UINT32 csty;
|
|
/** progression order */
|
|
OPJ_PROG_ORDER prg;
|
|
/** number of layers */
|
|
OPJ_UINT32 numlayers;
|
|
/** multi-component transform identifier */
|
|
OPJ_UINT32 mct;
|
|
|
|
/** information concerning tile component parameters*/
|
|
opj_tccp_info_t *tccp_info;
|
|
|
|
} opj_tile_info_v2_t;
|
|
|
|
/**
|
|
* Information structure about the codestream (FIXME should be expand and enhance)
|
|
*/
|
|
typedef struct opj_codestream_info_v2 {
|
|
/* Tile info */
|
|
/** tile origin in x = XTOsiz */
|
|
OPJ_UINT32 tx0;
|
|
/** tile origin in y = YTOsiz */
|
|
OPJ_UINT32 ty0;
|
|
/** tile size in x = XTsiz */
|
|
OPJ_UINT32 tdx;
|
|
/** tile size in y = YTsiz */
|
|
OPJ_UINT32 tdy;
|
|
/** number of tiles in X */
|
|
OPJ_UINT32 tw;
|
|
/** number of tiles in Y */
|
|
OPJ_UINT32 th;
|
|
|
|
/** number of components*/
|
|
OPJ_UINT32 nbcomps;
|
|
|
|
/** Default information regarding tiles inside image */
|
|
opj_tile_info_v2_t m_default_tile_info;
|
|
|
|
/** information regarding tiles inside image */
|
|
opj_tile_info_v2_t *tile_info; /* FIXME not used for the moment */
|
|
|
|
} opj_codestream_info_v2_t;
|
|
|
|
|
|
/**
|
|
* Index structure about a tile part
|
|
*/
|
|
typedef struct opj_tp_index {
|
|
/** start position */
|
|
OPJ_OFF_T start_pos;
|
|
/** end position of the header */
|
|
OPJ_OFF_T end_header;
|
|
/** end position */
|
|
OPJ_OFF_T end_pos;
|
|
|
|
} opj_tp_index_t;
|
|
|
|
/**
|
|
* Index structure about a tile
|
|
*/
|
|
typedef struct opj_tile_index {
|
|
/** tile index */
|
|
OPJ_UINT32 tileno;
|
|
|
|
/** number of tile parts */
|
|
OPJ_UINT32 nb_tps;
|
|
/** current nb of tile part (allocated)*/
|
|
OPJ_UINT32 current_nb_tps;
|
|
/** current tile-part index */
|
|
OPJ_UINT32 current_tpsno;
|
|
/** information concerning tile parts */
|
|
opj_tp_index_t *tp_index;
|
|
|
|
/* UniPG>> */
|
|
/** number of markers */
|
|
OPJ_UINT32 marknum;
|
|
/** list of markers */
|
|
opj_marker_info_t *marker;
|
|
/** actual size of markers array */
|
|
OPJ_UINT32 maxmarknum;
|
|
/* <<UniPG */
|
|
|
|
/** packet number */
|
|
OPJ_UINT32 nb_packet;
|
|
/** information concerning packets inside tile */
|
|
opj_packet_info_t *packet_index;
|
|
|
|
} opj_tile_index_t;
|
|
|
|
/**
|
|
* Index structure of the codestream (FIXME should be expand and enhance)
|
|
*/
|
|
typedef struct opj_codestream_index {
|
|
/** main header start position (SOC position) */
|
|
OPJ_OFF_T main_head_start;
|
|
/** main header end position (first SOT position) */
|
|
OPJ_OFF_T main_head_end;
|
|
|
|
/** codestream's size */
|
|
OPJ_UINT64 codestream_size;
|
|
|
|
/* UniPG>> */
|
|
/** number of markers */
|
|
OPJ_UINT32 marknum;
|
|
/** list of markers */
|
|
opj_marker_info_t *marker;
|
|
/** actual size of markers array */
|
|
OPJ_UINT32 maxmarknum;
|
|
/* <<UniPG */
|
|
|
|
/** */
|
|
OPJ_UINT32 nb_of_tiles;
|
|
/** */
|
|
opj_tile_index_t *tile_index; /* FIXME not used for the moment */
|
|
|
|
}opj_codestream_index_t;
|
|
/* -----------------------------------------------------------> */
|
|
|
|
/*
|
|
==========================================================
|
|
Metadata from the JP2file
|
|
==========================================================
|
|
*/
|
|
|
|
/**
|
|
* Info structure of the JP2 file
|
|
* FIXME
|
|
*/
|
|
typedef struct opj_jp2_metadata {
|
|
/** */
|
|
OPJ_INT32 not_used;
|
|
|
|
} opj_jp2_metadata_t;
|
|
|
|
/**
|
|
* Index structure of the JP2 file
|
|
* FIXME
|
|
*/
|
|
typedef struct opj_jp2_index {
|
|
/** */
|
|
OPJ_INT32 not_used;
|
|
|
|
} opj_jp2_index_t;
|
|
|
|
|
|
#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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==========================================================
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openjpeg version
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==========================================================
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*/
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OPJ_API const char * OPJ_CALLCONV opj_version(void);
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/*
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==========================================================
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image functions definitions
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==========================================================
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*/
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/**
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* Create an image
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* @param numcmpts number of components
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* @param cmptparms components parameters
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* @param clrspc image color space
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* @return returns a new image structure if successful, returns NULL otherwise
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* */
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OPJ_API opj_image_t* OPJ_CALLCONV opj_image_create(OPJ_UINT32 numcmpts, opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc);
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/**
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* Deallocate any resources associated with an image
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* @param image image to be destroyed
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*/
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OPJ_API void OPJ_CALLCONV opj_image_destroy(opj_image_t *image);
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/**
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* Creates an image without allocating memory for the image (used in the new version of the library).
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*
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* @param numcmpts the number of components
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* @param cmptparms the components parameters
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* @param clrspc the image color space
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*
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* @return a new image structure if successful, NULL otherwise.
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*/
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OPJ_API opj_image_t* OPJ_CALLCONV opj_image_tile_create(OPJ_UINT32 numcmpts, opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc);
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/*
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==========================================================
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stream functions definitions
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==========================================================
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*/
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/* CIO functions are DEPRECATED see following stream functions */
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/**
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Open and allocate a memory stream for read / write.
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On reading, the user must provide a buffer containing encoded data. The buffer will be
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wrapped by the returned CIO handle.
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On writing, buffer parameters must be set to 0: a buffer will be allocated by the library
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to contain encoded data.
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@param cinfo Codec context info
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@param buffer Reading: buffer address. Writing: NULL
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@param length Reading: buffer length. Writing: 0
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@return Returns a CIO handle if successful, returns NULL otherwise
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*/
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OPJ_API opj_cio_t* OPJ_CALLCONV opj_cio_open(opj_common_ptr cinfo, unsigned char *buffer, int length);
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/**
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Close and free a CIO handle
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@param cio CIO handle to free
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*/
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OPJ_API void OPJ_CALLCONV opj_cio_close(opj_cio_t *cio);
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/**
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Get position in byte stream
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@param cio CIO handle
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@return Returns the position in bytes
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*/
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OPJ_API OPJ_OFF_T OPJ_CALLCONV cio_tell(opj_cio_t *cio);
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/**
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Set position in byte stream
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@param cio CIO handle
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@param pos Position, in number of bytes, from the beginning of the stream
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*/
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OPJ_API void OPJ_CALLCONV cio_seek(opj_cio_t *cio, int pos);
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/* <----------- */
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/* V2 framework */
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/**
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* Creates an abstract stream. This function does nothing except allocating memory and initializing the abstract stream.
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*
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* @param p_is_input if set to true then the stream will be an input stream, an output stream else.
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*
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* @return a stream object.
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*/
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OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_default_create(opj_bool p_is_input);
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/**
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* Creates an abstract stream. This function does nothing except allocating memory and initializing the abstract stream.
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*
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* @param p_buffer_size FIXME DOC
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* @param p_is_input if set to true then the stream will be an input stream, an output stream else.
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*
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* @return a stream object.
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*/
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OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_create(OPJ_SIZE_T p_buffer_size, opj_bool p_is_input);
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/**
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* Destroys a stream created by opj_create_stream. This function does NOT close the abstract stream. If needed the user must
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* close its own implementation of the stream.
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*
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* @param p_stream the stream to destroy.
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*/
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OPJ_API void OPJ_CALLCONV opj_stream_destroy(opj_stream_t* p_stream);
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/**
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* Sets the given function to be used as a read function.
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* @param p_stream the stream to modify
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* @param p_function the function to use a read function.
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*/
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OPJ_API void OPJ_CALLCONV opj_stream_set_read_function(opj_stream_t* p_stream, opj_stream_read_fn p_function);
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/**
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* Sets the given function to be used as a write function.
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* @param p_stream the stream to modify
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* @param p_function the function to use a write function.
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*/
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OPJ_API void OPJ_CALLCONV opj_stream_set_write_function(opj_stream_t* p_stream, opj_stream_write_fn p_function);
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/**
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* Sets the given function to be used as a skip function.
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* @param p_stream the stream to modify
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* @param p_function the function to use a skip function.
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*/
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OPJ_API void OPJ_CALLCONV opj_stream_set_skip_function(opj_stream_t* p_stream, opj_stream_skip_fn p_function);
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/**
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* Sets the given function to be used as a seek function, the stream is then seekable.
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* @param p_stream the stream to modify
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* @param p_function the function to use a skip function.
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*/
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OPJ_API void OPJ_CALLCONV opj_stream_set_seek_function(opj_stream_t* p_stream, opj_stream_seek_fn p_function);
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/**
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* Sets the given data to be used as a user data for the stream.
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* @param p_stream the stream to modify
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* @param p_data the data to set.
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*/
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OPJ_API void OPJ_CALLCONV opj_stream_set_user_data (opj_stream_t* p_stream, void * p_data);
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/**
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* Sets the length of the user data for the stream.
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*
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* @param p_stream the stream to modify
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* @param data_length length of the user_data.
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*/
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OPJ_API void OPJ_CALLCONV opj_stream_set_user_data_length(opj_stream_t* p_stream, OPJ_UINT64 data_length);
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/**
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* Helper function.
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* Sets the stream to be a file stream. The FILE must have been open previously.
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* @param p_file the file stream to operate on
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* @param p_is_read_stream whether the stream is a read stream (true) or not (false)
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*/
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OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_create_default_file_stream (FILE * p_file, opj_bool p_is_read_stream);
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/**
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* FIXME DOC
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* @param p_file the file stream to operate on
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* @param p_buffer_size FIXME DOC
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* @param p_is_read_stream FIXME DOC
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*/
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OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_create_file_stream (FILE * p_file, OPJ_SIZE_T p_buffer_size, opj_bool p_is_read_stream);
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/* -----------> */
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/*
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==========================================================
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event manager functions definitions
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==========================================================
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*/
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OPJ_API opj_bool OPJ_CALLCONV opj_set_info_handler(opj_codec_t * p_codec, opj_msg_callback p_callback,void * p_user_data);
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OPJ_API opj_bool OPJ_CALLCONV opj_set_warning_handler(opj_codec_t * p_codec, opj_msg_callback p_callback,void * p_user_data);
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OPJ_API opj_bool OPJ_CALLCONV opj_set_error_handler(opj_codec_t * p_codec, opj_msg_callback p_callback,void * p_user_data);
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/*
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==========================================================
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codec functions definitions
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==========================================================
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*/
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/**
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* Creates a J2K/JP2 decompression structure
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* @param format Decoder to select
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*
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* @return Returns a handle to a decompressor if successful, returns NULL otherwise
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* */
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OPJ_API opj_codec_t* OPJ_CALLCONV opj_create_decompress(OPJ_CODEC_FORMAT format);
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/**
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* Destroy a decompressor handle
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*
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* @param p_codec decompressor handle to destroy
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*/
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OPJ_API void OPJ_CALLCONV opj_destroy_codec(opj_codec_t * p_codec);
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/**
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* Read after the codestream if necessary
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* @param p_codec the JPEG2000 codec to read.
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* @param p_stream the JPEG2000 stream.
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*/
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OPJ_API opj_bool OPJ_CALLCONV opj_end_decompress ( opj_codec_t *p_codec,
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opj_stream_t *p_stream);
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/**
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* Set decoding parameters to default values
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* @param parameters Decompression parameters
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*/
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OPJ_API void OPJ_CALLCONV opj_set_default_decoder_parameters(opj_dparameters_t *parameters);
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/**
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* Setup the decoder with decompression parameters provided by the user and with the message handler
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* provided by the user.
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*
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* @param p_codec decompressor handler
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* @param parameters decompression parameters
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*
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* @return true if the decoder is correctly set
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*/
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OPJ_API opj_bool OPJ_CALLCONV opj_setup_decoder(opj_codec_t *p_codec,
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opj_dparameters_t *parameters );
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/**
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* Decodes an image header.
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*
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* @param p_stream the jpeg2000 stream.
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* @param p_codec the jpeg2000 codec to read.
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* @param p_image the image structure initialized with the characteristics of encoded image.
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*
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* @return true if the main header of the codestream and the JP2 header is correctly read.
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*/
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OPJ_API opj_bool OPJ_CALLCONV opj_read_header ( opj_stream_t *p_stream,
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opj_codec_t *p_codec,
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opj_image_t **p_image);
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/**
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* Sets the given area to be decoded. This function should be called right after opj_read_header and before any tile header reading.
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*
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* @param p_codec the jpeg2000 codec.
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* @param p_image FIXME DOC
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* @param p_start_x the left position of the rectangle to decode (in image coordinates).
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* @param p_end_x the right position of the rectangle to decode (in image coordinates).
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* @param p_start_y the up position of the rectangle to decode (in image coordinates).
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* @param p_end_y the bottom position of the rectangle to decode (in image coordinates).
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*
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* @return true if the area could be set.
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*/
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OPJ_API opj_bool OPJ_CALLCONV opj_set_decode_area( opj_codec_t *p_codec,
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opj_image_t* p_image,
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OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
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OPJ_INT32 p_end_x, OPJ_INT32 p_end_y );
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/**
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* Decode an image from a JPEG-2000 codestream
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* @param p_decompressor decompressor handle
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* @param p_stream Input buffer stream
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* @param p_image the decoded image
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* @return true if success, otherwise false
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* */
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OPJ_API opj_bool OPJ_CALLCONV opj_decode( opj_codec_t *p_decompressor,
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opj_stream_t *p_stream,
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opj_image_t *p_image);
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/**
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* Get the decoded tile from the codec
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* @param p_codec the jpeg2000 codec.
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* @param p_stream input streamm
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* @param p_image output image
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* @param tile_index index of the tile which will be decode
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*
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* @return true if success, otherwise false
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*/
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OPJ_API opj_bool OPJ_CALLCONV opj_get_decoded_tile( opj_codec_t *p_codec,
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opj_stream_t *p_stream,
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opj_image_t *p_image,
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OPJ_UINT32 tile_index);
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/**
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* Set the resolution factor of the decoded image
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* @param p_codec the jpeg2000 codec.
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* @param res_factor resolution factor to set
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*
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* @return true if success, otherwise false
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*/
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OPJ_API opj_bool OPJ_CALLCONV opj_set_decoded_resolution_factor(opj_codec_t *p_codec, OPJ_UINT32 res_factor);
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/**
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* Writes a tile with the given data.
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*
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* @param p_codec the jpeg2000 codec.
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* @param p_tile_index the index of the tile to write. At the moment, the tiles must be written from 0 to n-1 in sequence.
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* @param p_data pointer to the data to write. Data is arranged in sequence, data_comp0, then data_comp1, then ... NO INTERLEAVING should be set.
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* @param p_data_size this value os used to make sure the data being written is correct. The size must be equal to the sum for each component of tile_width * tile_height * component_size. component_size can be 1,2 or 4 bytes, depending on the precision of the given component.
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* @param p_stream the stream to write data to.
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*
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* @return true if the data could be written.
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*/
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OPJ_API opj_bool OPJ_CALLCONV opj_write_tile ( opj_codec_t *p_codec,
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OPJ_UINT32 p_tile_index,
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OPJ_BYTE * p_data,
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OPJ_UINT32 p_data_size,
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opj_stream_t *p_stream );
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/**
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* Reads a tile header. This function is compulsory and allows one to know the size of the tile thta will be decoded.
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* The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile.
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*
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* @param p_codec the jpeg2000 codec.
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* @param p_tile_index pointer to a value that will hold the index of the tile being decoded, in case of success.
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* @param p_data_size pointer to a value that will hold the maximum size of the decoded data, in case of success. In case
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* of truncated codestreams, the actual number of bytes decoded may be lower. The computation of the size is the same
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* as depicted in opj_write_tile.
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* @param p_tile_x0 pointer to a value that will hold the x0 pos of the tile (in the image).
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* @param p_tile_y0 pointer to a value that will hold the y0 pos of the tile (in the image).
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* @param p_tile_x1 pointer to a value that will hold the x1 pos of the tile (in the image).
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* @param p_tile_y1 pointer to a value that will hold the y1 pos of the tile (in the image).
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* @param p_nb_comps pointer to a value that will hold the number of components in the tile.
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* @param p_should_go_on pointer to a boolean that will hold the fact that the decoding should go on. In case the
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* codestream is over at the time of the call, the value will be set to false. The user should then stop
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* the decoding.
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* @param p_stream the stream to decode.
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* @return true if the tile header could be decoded. In case the decoding should end, the returned value is still true.
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* returning false may be the result of a shortage of memory or an internal error.
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*/
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OPJ_API opj_bool OPJ_CALLCONV opj_read_tile_header( opj_codec_t *p_codec,
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opj_stream_t * p_stream,
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OPJ_UINT32 * p_tile_index,
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OPJ_UINT32 * p_data_size,
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OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0,
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OPJ_INT32 * p_tile_x1, OPJ_INT32 * p_tile_y1,
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OPJ_UINT32 * p_nb_comps,
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opj_bool * p_should_go_on );
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/**
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* Reads a tile data. This function is compulsory and allows one to decode tile data. opj_read_tile_header should be called before.
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* The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile.
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*
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* @param p_codec the jpeg2000 codec.
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* @param p_tile_index the index of the tile being decoded, this should be the value set by opj_read_tile_header.
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* @param p_data pointer to a memory block that will hold the decoded data.
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* @param p_data_size size of p_data. p_data_size should be bigger or equal to the value set by opj_read_tile_header.
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* @param p_stream the stream to decode.
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*
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* @return true if the data could be decoded.
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*/
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OPJ_API opj_bool OPJ_CALLCONV opj_decode_tile_data( opj_codec_t *p_codec,
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OPJ_UINT32 p_tile_index,
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OPJ_BYTE * p_data,
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OPJ_UINT32 p_data_size,
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opj_stream_t *p_stream );
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/* COMPRESSION FUNCTIONS*/
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/**
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* Creates a J2K/JP2 compression structure
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* @param format Coder to select
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* @return Returns a handle to a compressor if successful, returns NULL otherwise
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*/
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OPJ_API opj_codec_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT format);
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/**
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Set encoding parameters to default values, that means :
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<ul>
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<li>Lossless
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<li>1 tile
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<li>Size of precinct : 2^15 x 2^15 (means 1 precinct)
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<li>Size of code-block : 64 x 64
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<li>Number of resolutions: 6
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<li>No SOP marker in the codestream
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<li>No EPH marker in the codestream
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<li>No sub-sampling in x or y direction
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<li>No mode switch activated
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<li>Progression order: LRCP
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<li>No index file
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<li>No ROI upshifted
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<li>No offset of the origin of the image
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<li>No offset of the origin of the tiles
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<li>Reversible DWT 5-3
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</ul>
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@param parameters Compression parameters
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*/
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OPJ_API void OPJ_CALLCONV opj_set_default_encoder_parameters(opj_cparameters_t *parameters);
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/**
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* Setup the encoder parameters using the current image and using user parameters.
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* @param p_codec Compressor handle
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* @param parameters Compression parameters
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* @param image Input filled image
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*/
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OPJ_API opj_bool OPJ_CALLCONV opj_setup_encoder(opj_codec_t *p_codec,
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opj_cparameters_t *parameters,
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opj_image_t *image);
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|
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/**
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|
*/
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OPJ_API opj_bool OPJ_CALLCONV opj_start_compress ( opj_codec_t *p_codec,
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opj_image_t * p_image,
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opj_stream_t *p_cio);
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|
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/**
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*/
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OPJ_API opj_bool OPJ_CALLCONV opj_end_compress (opj_codec_t *p_codec,
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opj_stream_t *p_stream);
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/**
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|
* Encode an image into a JPEG-2000 codestream
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* @param p_codec compressor handle
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* @param p_stream Output buffer stream
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*
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* @return Returns true if successful, returns false otherwise
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*/
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OPJ_API opj_bool OPJ_CALLCONV opj_encode(opj_codec_t *p_codec,
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opj_stream_t *p_stream);
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/**
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Destroy Codestream information after compression or decompression
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@param cstr_info Codestream information structure
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*/
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OPJ_API void OPJ_CALLCONV opj_destroy_cstr_info(opj_codestream_info_v2_t **cstr_info);
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/*
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|
==========================================================
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|
codec output functions definitions
|
|
==========================================================
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|
*/
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/**
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|
* Dump the codec information into the output stream
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|
*
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|
* @param p_codec the jpeg2000 codec.
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|
* @param info_flag type of information dump.
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|
* @param output_stream output stream where dump the informations get from the codec.
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|
*
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|
*/
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OPJ_API void OPJ_CALLCONV opj_dump_codec( opj_codec_t *p_codec,
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OPJ_INT32 info_flag,
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FILE* output_stream);
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/**
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* Get the codestream information from the codec
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*
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* @param p_codec the jpeg2000 codec.
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*
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* @return a pointer to a codestream information structure.
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*
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|
*/
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OPJ_API opj_codestream_info_v2_t* OPJ_CALLCONV opj_get_cstr_info(opj_codec_t *p_codec);
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/**
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|
* Get the codestream index from the codec
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|
*
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* @param p_codec the jpeg2000 codec.
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|
*
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|
* @return a pointer to a codestream index structure.
|
|
*
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|
*/
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|
OPJ_API opj_codestream_index_t * OPJ_CALLCONV opj_get_cstr_index(opj_codec_t *p_codec);
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OPJ_API void OPJ_CALLCONV opj_destroy_cstr_index(opj_codestream_index_t **p_cstr_index);
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/**
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|
* Get the JP2 file information from the codec FIXME
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|
*
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|
* @param p_codec the jpeg2000 codec.
|
|
*
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|
* @return a pointer to a JP2 metadata structure.
|
|
*
|
|
*/
|
|
OPJ_API opj_jp2_metadata_t* OPJ_CALLCONV opj_get_jp2_metadata(opj_codec_t *p_codec);
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|
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|
/**
|
|
* Get the JP2 file index from the codec FIXME
|
|
*
|
|
* @param p_codec the jpeg2000 codec.
|
|
*
|
|
* @return a pointer to a JP2 index structure.
|
|
*
|
|
*/
|
|
OPJ_API opj_jp2_index_t* OPJ_CALLCONV opj_get_jp2_index(opj_codec_t *p_codec);
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|
|
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|
|
/*
|
|
==========================================================
|
|
new functions
|
|
==========================================================
|
|
*/
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|
|
|
/**
|
|
* Sets the MCT matrix to use.
|
|
*
|
|
* @param parameters the parameters to change.
|
|
* @param pEncodingMatrix the encoding matrix.
|
|
* @param p_dc_shift the dc shift coefficients to use.
|
|
* @param pNbComp the number of components of the image.
|
|
*
|
|
* @return true if the parameters could be set.
|
|
*/
|
|
OPJ_API opj_bool OPJ_CALLCONV opj_set_MCT( opj_cparameters_t *parameters,
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|
OPJ_FLOAT32 * pEncodingMatrix,
|
|
OPJ_INT32 * p_dc_shift,
|
|
OPJ_UINT32 pNbComp);
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|
|
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|
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|
|
#ifdef __cplusplus
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|
}
|
|
#endif
|
|
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|
#endif /* OPENJPEG_H */
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