887 lines
27 KiB
C
887 lines
27 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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* 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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#define OPENJPEG_VERSION "1.2.0"
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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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#if defined(OPJ_STATIC) || !(defined(WIN32) || defined(__WIN32__))
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#define OPJ_API
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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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#ifdef OPJ_EXPORTS
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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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#ifndef __cplusplus
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#if defined(HAVE_STDBOOL_H)
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/*
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The C language implementation does correctly provide the standard header
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file "stdbool.h".
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*/
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#include <stdbool.h>
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#else
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/*
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The C language implementation does not provide the standard header file
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"stdbool.h" as required by ISO/IEC 9899:1999. Try to compensate for this
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braindamage below.
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*/
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#if !defined(bool)
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#define bool int
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#endif
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#if !defined(true)
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#define true 1
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#endif
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#if !defined(false)
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#define false 0
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#endif
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#endif
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#endif /* __cplusplus */
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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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/* 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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==========================================================
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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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} 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, /**< place-holder */
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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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/**
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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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/** 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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typedef struct opj_poc {
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/** Resolution num start, Component num start, given by POC */
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int resno0, compno0;
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/** Layer num end,Resolution num end, Component num end, given by POC */
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int 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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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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/** 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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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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} opj_cparameters_t;
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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 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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/** 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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/*@}*/
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/* UniPG>> */
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/**@name JPWL decoding parameters */
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/*@{*/
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/** activates the JPWL correction capabilities */
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bool jpwl_correct;
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/** expected number of components */
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int jpwl_exp_comps;
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/** maximum number of tiles */
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int jpwl_max_tiles;
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/*@}*/
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/* <<UniPG */
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/**
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Specify whether the decoding should be done on the entire codestream, or be limited to the main header
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Limiting the decoding to the main header makes it possible to extract the characteristics of the codestream
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if == NO_LIMITATION, the entire codestream is decoded;
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if == LIMIT_TO_MAIN_HEADER, only the main header is decoded;
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*/
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OPJ_LIMIT_DECODING cp_limit_decoding;
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} opj_dparameters_t;
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/** Common fields between JPEG-2000 compression and decompression master structs. */
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#define opj_common_fields \
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opj_event_mgr_t *event_mgr; /**< pointer to the event manager */\
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void * client_data; /**< Available for use by application */\
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bool is_decompressor; /**< So common code can tell which is which */\
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OPJ_CODEC_FORMAT codec_format; /**< selected codec */\
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void *j2k_handle; /**< pointer to the J2K codec */\
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void *jp2_handle; /**< pointer to the JP2 codec */\
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void *mj2_handle /**< pointer to the MJ2 codec */
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/* Routines that are to be used by both halves of the library are declared
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* to receive a pointer to this structure. There are no actual instances of
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* opj_common_struct_t, only of opj_cinfo_t and opj_dinfo_t.
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*/
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typedef struct opj_common_struct {
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opj_common_fields; /* Fields common to both master struct types */
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/* Additional fields follow in an actual opj_cinfo_t or
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* opj_dinfo_t. All three structs must agree on these
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* initial fields! (This would be a lot cleaner in C++.)
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*/
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} opj_common_struct_t;
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typedef opj_common_struct_t * opj_common_ptr;
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/**
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Compression context info
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*/
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typedef struct opj_cinfo {
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/** Fields shared with opj_dinfo_t */
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opj_common_fields;
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/* other specific fields go here */
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} opj_cinfo_t;
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/**
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Decompression context info
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*/
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typedef struct opj_dinfo {
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/** Fields shared with opj_cinfo_t */
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opj_common_fields;
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/* other specific fields go here */
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} opj_dinfo_t;
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/*
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==========================================================
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I/O stream typedef definitions
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==========================================================
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*/
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/*
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* Stream open flags.
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*/
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/** The stream was opened for reading. */
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#define OPJ_STREAM_READ 0x0001
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/** The stream was opened for writing. */
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#define OPJ_STREAM_WRITE 0x0002
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/**
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Byte input-output stream (CIO)
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*/
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typedef struct opj_cio {
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/** codec context */
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opj_common_ptr cinfo;
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/** open mode (read/write) either OPJ_STREAM_READ or OPJ_STREAM_WRITE */
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int openmode;
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/** pointer to the start of the buffer */
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unsigned char *buffer;
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/** buffer size in bytes */
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unsigned int length;
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/** 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;
|
|
|
|
/*
|
|
==========================================================
|
|
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 */
|
|
int dx;
|
|
/** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
|
|
int dy;
|
|
/** data width */
|
|
int w;
|
|
/** data height */
|
|
int h;
|
|
/** x component offset compared to the whole image */
|
|
int x0;
|
|
/** y component offset compared to the whole image */
|
|
int y0;
|
|
/** precision */
|
|
int prec;
|
|
/** image depth in bits */
|
|
int bpp;
|
|
/** signed (1) / unsigned (0) */
|
|
int sgnd;
|
|
/** number of decoded resolution */
|
|
int resno_decoded;
|
|
/** number of division by 2 of the out image compared to the original size of image */
|
|
int factor;
|
|
/** image component data */
|
|
int *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 */
|
|
int x0;
|
|
/** YOsiz: vertical offset from the origin of the reference grid to the top side of the image area */
|
|
int y0;
|
|
/** Xsiz: width of the reference grid */
|
|
int x1;
|
|
/** Ysiz: height of the reference grid */
|
|
int y1;
|
|
/** number of components in the image */
|
|
int numcomps;
|
|
/** color space: sRGB, Greyscale or YUV */
|
|
OPJ_COLOR_SPACE color_space;
|
|
/** image components */
|
|
opj_image_comp_t *comps;
|
|
} 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 */
|
|
int dx;
|
|
/** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
|
|
int dy;
|
|
/** data width */
|
|
int w;
|
|
/** data height */
|
|
int h;
|
|
/** x component offset compared to the whole image */
|
|
int x0;
|
|
/** y component offset compared to the whole image */
|
|
int y0;
|
|
/** precision */
|
|
int prec;
|
|
/** image depth in bits */
|
|
int bpp;
|
|
/** signed (1) / unsigned (0) */
|
|
int 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) */
|
|
int start_pos;
|
|
/** end of packet header position (including EPH marker if it exists)*/
|
|
int end_ph_pos;
|
|
/** packet end position */
|
|
int end_pos;
|
|
/** packet distorsion */
|
|
double disto;
|
|
} opj_packet_info_t;
|
|
|
|
/**
|
|
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;
|
|
/** 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 tile parts */
|
|
int num_tps;
|
|
/** information concerning tile parts */
|
|
opj_tp_info_t *tp;
|
|
} opj_tile_info_t;
|
|
|
|
/* UniPG>> */
|
|
/**
|
|
Marker structure
|
|
*/
|
|
typedef struct opj_marker_info_t {
|
|
/** marker type */
|
|
unsigned short int type;
|
|
/** position in codestream */
|
|
int pos;
|
|
/** length, marker val included */
|
|
int len;
|
|
} opj_marker_info_t;
|
|
/* <<UniPG */
|
|
|
|
/**
|
|
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 of first component */
|
|
int numdecompos;
|
|
/* UniPG>> */
|
|
/** number of markers */
|
|
int marknum;
|
|
/** list of markers */
|
|
opj_marker_info_t *marker;
|
|
/* <<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;
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
/*
|
|
==========================================================
|
|
openjpeg version
|
|
==========================================================
|
|
*/
|
|
|
|
OPJ_API const char * OPJ_CALLCONV opj_version(void);
|
|
|
|
/*
|
|
==========================================================
|
|
image functions definitions
|
|
==========================================================
|
|
*/
|
|
|
|
/**
|
|
Create an image
|
|
@param numcmpts number of components
|
|
@param cmptparms components parameters
|
|
@param clrspc image color space
|
|
@return returns a new image structure if successful, returns NULL otherwise
|
|
*/
|
|
OPJ_API opj_image_t* OPJ_CALLCONV opj_image_create(int numcmpts, opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc);
|
|
|
|
/**
|
|
Deallocate any resources associated with an image
|
|
@param image image to be destroyed
|
|
*/
|
|
OPJ_API void OPJ_CALLCONV opj_image_destroy(opj_image_t *image);
|
|
|
|
/*
|
|
==========================================================
|
|
stream functions definitions
|
|
==========================================================
|
|
*/
|
|
|
|
/**
|
|
Open and allocate a memory stream for read / write.
|
|
On reading, the user must provide a buffer containing encoded data. The buffer will be
|
|
wrapped by the returned CIO handle.
|
|
On writing, buffer parameters must be set to 0: a buffer will be allocated by the library
|
|
to contain encoded data.
|
|
@param cinfo Codec context info
|
|
@param buffer Reading: buffer address. Writing: NULL
|
|
@param length Reading: buffer length. Writing: 0
|
|
@return Returns a CIO handle if successful, returns NULL otherwise
|
|
*/
|
|
OPJ_API opj_cio_t* OPJ_CALLCONV opj_cio_open(opj_common_ptr cinfo, unsigned char *buffer, int length);
|
|
|
|
/**
|
|
Close and free a CIO handle
|
|
@param cio CIO handle to free
|
|
*/
|
|
OPJ_API void OPJ_CALLCONV opj_cio_close(opj_cio_t *cio);
|
|
|
|
/**
|
|
Get position in byte stream
|
|
@param cio CIO handle
|
|
@return Returns the position in bytes
|
|
*/
|
|
OPJ_API int OPJ_CALLCONV cio_tell(opj_cio_t *cio);
|
|
/**
|
|
Set position in byte stream
|
|
@param cio CIO handle
|
|
@param pos Position, in number of bytes, from the beginning of the stream
|
|
*/
|
|
OPJ_API void OPJ_CALLCONV cio_seek(opj_cio_t *cio, int pos);
|
|
|
|
/*
|
|
==========================================================
|
|
event manager functions definitions
|
|
==========================================================
|
|
*/
|
|
|
|
OPJ_API opj_event_mgr_t* OPJ_CALLCONV opj_set_event_mgr(opj_common_ptr cinfo, opj_event_mgr_t *event_mgr, void *context);
|
|
|
|
/*
|
|
==========================================================
|
|
codec functions definitions
|
|
==========================================================
|
|
*/
|
|
/**
|
|
Creates a J2K/JPT/JP2 decompression structure
|
|
@param format Decoder to select
|
|
@return Returns a handle to a decompressor if successful, returns NULL otherwise
|
|
*/
|
|
OPJ_API opj_dinfo_t* OPJ_CALLCONV opj_create_decompress(OPJ_CODEC_FORMAT format);
|
|
/**
|
|
Destroy a decompressor handle
|
|
@param dinfo decompressor handle to destroy
|
|
*/
|
|
OPJ_API void OPJ_CALLCONV opj_destroy_decompress(opj_dinfo_t *dinfo);
|
|
/**
|
|
Set decoding parameters to default values
|
|
@param parameters Decompression parameters
|
|
*/
|
|
OPJ_API void OPJ_CALLCONV opj_set_default_decoder_parameters(opj_dparameters_t *parameters);
|
|
/**
|
|
Setup the decoder decoding parameters using user parameters.
|
|
Decoding parameters are returned in j2k->cp.
|
|
@param dinfo decompressor handle
|
|
@param parameters decompression parameters
|
|
*/
|
|
OPJ_API void OPJ_CALLCONV opj_setup_decoder(opj_dinfo_t *dinfo, opj_dparameters_t *parameters);
|
|
/**
|
|
Decode an image from a JPEG-2000 codestream
|
|
@param dinfo decompressor handle
|
|
@param cio Input buffer stream
|
|
@param cstr_info Codestream information structure if needed afterwards, NULL otherwise
|
|
@return Returns a decoded image if successful, returns NULL otherwise
|
|
*/
|
|
OPJ_API opj_image_t* OPJ_CALLCONV opj_decode(opj_dinfo_t *dinfo, opj_cio_t *cio, opj_codestream_info_t *cstr_info);
|
|
/**
|
|
Creates a J2K/JP2 compression structure
|
|
@param format Coder to select
|
|
@return Returns a handle to a compressor if successful, returns NULL otherwise
|
|
*/
|
|
OPJ_API opj_cinfo_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT format);
|
|
/**
|
|
Destroy a compressor handle
|
|
@param cinfo compressor handle to destroy
|
|
*/
|
|
OPJ_API void OPJ_CALLCONV opj_destroy_compress(opj_cinfo_t *cinfo);
|
|
/**
|
|
Set encoding parameters to default values, that means :
|
|
<ul>
|
|
<li>Lossless
|
|
<li>1 tile
|
|
<li>Size of precinct : 2^15 x 2^15 (means 1 precinct)
|
|
<li>Size of code-block : 64 x 64
|
|
<li>Number of resolutions: 6
|
|
<li>No SOP marker in the codestream
|
|
<li>No EPH marker in the codestream
|
|
<li>No sub-sampling in x or y direction
|
|
<li>No mode switch activated
|
|
<li>Progression order: LRCP
|
|
<li>No index file
|
|
<li>No ROI upshifted
|
|
<li>No offset of the origin of the image
|
|
<li>No offset of the origin of the tiles
|
|
<li>Reversible DWT 5-3
|
|
</ul>
|
|
@param parameters Compression parameters
|
|
*/
|
|
OPJ_API void OPJ_CALLCONV opj_set_default_encoder_parameters(opj_cparameters_t *parameters);
|
|
/**
|
|
Setup the encoder parameters using the current image and using user parameters.
|
|
@param cinfo Compressor handle
|
|
@param parameters Compression parameters
|
|
@param image Input filled image
|
|
*/
|
|
OPJ_API void OPJ_CALLCONV opj_setup_encoder(opj_cinfo_t *cinfo, opj_cparameters_t *parameters, opj_image_t *image);
|
|
/**
|
|
Encode an image into a JPEG-2000 codestream
|
|
@param cinfo compressor handle
|
|
@param cio Output buffer stream
|
|
@param image Image to encode
|
|
@param cstr_info Codestream information structure if needed afterwards, NULL otherwise
|
|
@return Returns true if successful, returns false otherwise
|
|
*/
|
|
OPJ_API bool OPJ_CALLCONV opj_encode(opj_cinfo_t *cinfo, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info);
|
|
/**
|
|
Destroy Codestream information after compression or decompression
|
|
@param cstr_info Codestream information structure
|
|
*/
|
|
OPJ_API void OPJ_CALLCONV opj_destroy_cstr_info(opj_codestream_info_t *cstr_info);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* OPENJPEG_H */
|