714 lines
22 KiB
C
714 lines
22 KiB
C
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/*
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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) 2003-2005, Francois Devaux and Antonin Descampe
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* Copyright (c) 2005, Herv<EFBFBD> Drolon, FreeImage Team
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* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
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* Copyright (c) 2006, M<EFBFBD>nica D<EFBFBD>ez Garc<EFBFBD>a, Image Processing Laboratory, University of Valladolid, Spain
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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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#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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#ifndef MAX_SLICES
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#define MAX_SLICES 300 /**< Maximum allowed size for slices */
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#endif /* MAX_PATH */
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#ifndef MAX_PATH
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#define MAX_PATH 260 /**< Maximum allowed size for filenames */
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#endif /* MAX_PATH */
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#define J3D_MAXRLVLS 32 /**< Number of maximum resolution level authorized */
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#define J3D_MAXBANDS (7*J3D_MAXRLVLS + 1) /**< Number of maximum sub-band linked to number of resolution level */
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#define TINY 1.0E-20
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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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#define J2K_CFMT 0
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#define J3D_CFMT 1
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#define LSE_CFMT 2
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#define BIN_DFMT 0
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#define PGX_DFMT 1
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#define IMG_DFMT 2
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/* ----------------------------------------------------------------------- */
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/** Progression order */
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typedef enum PROG_ORDER {
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/**< place-holder */
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PROG_UNKNOWN = -1,
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/**< layer-resolution-component-precinct order */
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LRCP = 0,
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/**< resolution-layer-component-precinct order */
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RLCP = 1,
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/**< resolution-precinct-component-layer order */
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RPCL = 2,
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/**< precinct-component-resolution-layer order */
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PCRL = 3,
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/**< component-precinct-resolution-layer order */
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CPRL = 4
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} OPJ_PROG_ORDER;
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/**
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Supported volume color spaces
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*/
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typedef enum COLOR_SPACE {
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/**< place-holder */
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CLRSPC_UNKNOWN = -1,
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/**< sRGB */
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CLRSPC_SRGB = 1,
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/**< grayscale */
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CLRSPC_GRAY = 2,
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/**< YUV */
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CLRSPC_SYCC = 3
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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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/**< place-holder */
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CODEC_UNKNOWN = -1,
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/**< JPEG-2000 codestream : read/write */
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CODEC_J2K = 0,
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/**< JPEG-2000 Part 10 file format : read/write */
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CODEC_J3D = 1
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} OPJ_CODEC_FORMAT;
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/**
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Supported entropy coding algorithms
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*/
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typedef enum ENTROPY_CODING {
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/**< place-holder */
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ENCOD_UNKNOWN = -1,
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/**< 2D EBCOT encoding */
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ENCOD_2EB = 0,
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/**< 3D EBCOT encoding */
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ENCOD_3EB = 1,
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/**< Golomb-Rice coding with 2D context */
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ENCOD_2GR = 2,
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/**< Golomb-Rice coding with 3D context */
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ENCOD_3GR = 3
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} OPJ_ENTROPY_CODING;
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/**
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Supported transforms
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*/
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typedef enum TRANSFORM {
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/**< place-holder */
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TRF_UNKNOWN = -1,
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/**< 2D DWT, no transform in axial dim */
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TRF_2D_DWT = 0,
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/**< 3D DWT */
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TRF_3D_DWT = 1,
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/**< 3D prediction*/
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TRF_3D_RLS = 2,
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TRF_3D_LSE = 3
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} OPJ_TRANSFORM;
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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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int resno0, compno0;
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int layno1, resno1, compno1;
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OPJ_PROG_ORDER prg;
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int tile;
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char progorder[4];
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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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/** ZTOsiz */
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int cp_tz0;
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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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/** ZTsiz */
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int cp_tdz;
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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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/** number of layers */
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int tcp_numlayers;
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/** rates for successive layers */
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float tcp_rates[100];
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/** psnr's for successive layers */
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float tcp_distoratio[100];
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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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/** DC offset (DCO) */
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int dcoffset;
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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[J3D_MAXRLVLS-1];
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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 resolutions */
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int numresolution[3];
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/** initial code block width, height and depth, default to 64 */
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int cblock_init[3];
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/** mode switch (1=BYPASS(LAZY) 2=RESET 4=RESTART(TERMALL) 8=VSC 16=ERTERM(SEGTERM) 32=SEGMARK(SEGSYM)) */
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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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/** WT from ATK, default to 0 (false), no of atk used */
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int atk_wt[3];
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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 prct_init[3][J3D_MAXRLVLS];
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/** transform format 0: 0: 2DWT, 1: 2D1P, 2: 3DWT, 3: 3RLS */
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OPJ_TRANSFORM transform_format;
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/** output file format 0: 2EB, 1: 3EB, 2: 2GR, 3: 3GR, 4: GRI */
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OPJ_ENTROPY_CODING encoding_format;
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/**@name command line encoder parameters (not used inside the library) */
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/*@{*/
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char infile[MAX_PATH]; /** input file name */
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char outfile[MAX_PATH]; /** output file name */
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char imgfile[MAX_PATH]; /** IMG file name for BIN volumes*/
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int index_on; /** creation of an index file, default to 0 (false) */
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char index[MAX_PATH]; /** index file name */
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int volume_offset_x0; /** subvolume encoding: origin volume offset in x, y and z direction */
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int volume_offset_y0;
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int volume_offset_z0;
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int subsampling_dx; /** subsampling value for dx */
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int subsampling_dy;
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int subsampling_dz;
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int decod_format; /** input file format 0: BIN, 1: PGX */
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int cod_format; /** output file format 0: JP3D */
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/*@}*/
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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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/** Set the number of highest resolution levels to be discarded. if != 0, then original dimension divided by 2^(reduce); if == 0 or not used, volume is decoded to the full resolution */
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int cp_reduce[3];
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/** Set the maximum number of quality layers to decode. if != 0, then only the first "layer" layers are decoded; if == 0 or not used, all the quality layers are decoded */
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int cp_layer;
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int bigendian;
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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[MAX_PATH];
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/** output file name */
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char outfile[MAX_PATH];
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/** IMG file name for BIN volumes*/
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char imgfile[MAX_PATH];
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/** Original file name for PSNR measures*/
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char original[MAX_PATH];
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/** input file format 0: J2K, 1: JP3D */
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int decod_format;
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/** input file format 0: BIN, 1: PGM */
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int cod_format;
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/** original file format 0: BIN, 1: PGM */
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int orig_format;
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/*@}*/
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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 \
|
|||
|
|
opj_event_mgr_t *event_mgr; /**< pointer to the event manager */\
|
|||
|
|
void * client_data; /**< Available for use by application */\
|
|||
|
|
bool is_decompressor; /**< So common code can tell which is which */\
|
|||
|
|
OPJ_CODEC_FORMAT codec_format; /**< selected codec */\
|
|||
|
|
OPJ_ENTROPY_CODING encoding_format; /**< selected entropy coding */\
|
|||
|
|
OPJ_TRANSFORM transform_format; /**< selected transform */\
|
|||
|
|
void *j3d_handle /**< pointer to the J3D 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;
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
==========================================================
|
|||
|
|
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)
|
|||
|
|
*/
|
|||
|
|
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 */
|
|||
|
|
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;
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
==========================================================
|
|||
|
|
volume typedef definitions
|
|||
|
|
==========================================================
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
Defines a single volume component
|
|||
|
|
*/
|
|||
|
|
typedef struct opj_volume_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;
|
|||
|
|
/** ZRsiz: vertical separation of a sample of ith component with respect to the reference grid */
|
|||
|
|
int dz;
|
|||
|
|
/** data width */
|
|||
|
|
int w;
|
|||
|
|
/** data height */
|
|||
|
|
int h;
|
|||
|
|
/** data length : no of slices */
|
|||
|
|
int l;
|
|||
|
|
/** x component offset compared to the whole volume */
|
|||
|
|
int x0;
|
|||
|
|
/** y component offset compared to the whole volume */
|
|||
|
|
int y0;
|
|||
|
|
/** z component offset compared to the whole volume */
|
|||
|
|
int z0;
|
|||
|
|
/** precision */
|
|||
|
|
int prec;
|
|||
|
|
/** volume depth in bits */
|
|||
|
|
int bpp;
|
|||
|
|
/** DC offset (15444-2) */
|
|||
|
|
int dcoffset;
|
|||
|
|
/** signed (1) / unsigned (0) */
|
|||
|
|
int sgnd;
|
|||
|
|
/** BE byte order (1) / LE byte order (0) */
|
|||
|
|
int bigendian;
|
|||
|
|
/** number of decoded resolution */
|
|||
|
|
int resno_decoded[3];
|
|||
|
|
/** number of division by 2 of the out volume compared to the original size of volume */
|
|||
|
|
int factor[3];
|
|||
|
|
/** volume component data */
|
|||
|
|
int *data;
|
|||
|
|
} opj_volume_comp_t;
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
Defines volume data and characteristics
|
|||
|
|
*/
|
|||
|
|
typedef struct opj_volume {
|
|||
|
|
/** XOsiz: horizontal offset from the origin of the reference grid to the left side of the volume area */
|
|||
|
|
int x0;
|
|||
|
|
/** YOsiz: vertical offset from the origin of the reference grid to the top side of the volume area */
|
|||
|
|
int y0;
|
|||
|
|
/** ZOsiz: vertical offset from the origin of the reference grid to the top side of the volume area */
|
|||
|
|
int z0;
|
|||
|
|
/** Xsiz: width of the reference grid */
|
|||
|
|
int x1;
|
|||
|
|
/** Ysiz: height of the reference grid */
|
|||
|
|
int y1;
|
|||
|
|
/** Zsiz: length of the reference grid */
|
|||
|
|
int z1;
|
|||
|
|
/** number of components in the volume */
|
|||
|
|
int numcomps;
|
|||
|
|
/** number of slices in the volume */
|
|||
|
|
int numslices;
|
|||
|
|
/** color space: sRGB, Greyscale or YUV */
|
|||
|
|
OPJ_COLOR_SPACE color_space;
|
|||
|
|
/** volume components */
|
|||
|
|
opj_volume_comp_t *comps;
|
|||
|
|
} opj_volume_t;
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
Component parameters structure used by the opj_volume_create function
|
|||
|
|
*/
|
|||
|
|
typedef struct opj_volume_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;
|
|||
|
|
/** ZRsiz: axial separation of a sample of ith component with respect to the reference grid */
|
|||
|
|
int dz;
|
|||
|
|
/** data width */
|
|||
|
|
int w;
|
|||
|
|
/** data height */
|
|||
|
|
int h;
|
|||
|
|
/** data length */
|
|||
|
|
int l;
|
|||
|
|
/** x component offset compared to the whole volume */
|
|||
|
|
int x0;
|
|||
|
|
/** y component offset compared to the whole volume */
|
|||
|
|
int y0;
|
|||
|
|
/** z component offset compared to the whole volume */
|
|||
|
|
int z0;
|
|||
|
|
/** precision */
|
|||
|
|
int prec;
|
|||
|
|
/** volume depth in bits */
|
|||
|
|
int bpp;
|
|||
|
|
/** signed (1) / unsigned (0) */
|
|||
|
|
int sgnd;
|
|||
|
|
/** DC offset*/
|
|||
|
|
int dcoffset;
|
|||
|
|
/** BE byte order (1) / LE byte order (0) */
|
|||
|
|
int bigendian;
|
|||
|
|
} opj_volume_cmptparm_t;
|
|||
|
|
|
|||
|
|
#ifdef __cplusplus
|
|||
|
|
extern "C" {
|
|||
|
|
#endif
|
|||
|
|
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
==========================================================
|
|||
|
|
openjpeg version
|
|||
|
|
==========================================================
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
OPJ_API const char * OPJ_CALLCONV opj_version();
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
==========================================================
|
|||
|
|
volume functions definitions
|
|||
|
|
==========================================================
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
Create an volume
|
|||
|
|
@param numcmpts number of components
|
|||
|
|
@param cmptparms components parameters
|
|||
|
|
@param clrspc volume color space
|
|||
|
|
@return returns a new volume structure if successful, returns NULL otherwise
|
|||
|
|
*/
|
|||
|
|
OPJ_API opj_volume_t* OPJ_CALLCONV opj_volume_create(int numcmpts, opj_volume_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc);
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
Deallocate any resources associated with an volume
|
|||
|
|
@param volume volume to be destroyed
|
|||
|
|
*/
|
|||
|
|
OPJ_API void OPJ_CALLCONV opj_volume_destroy(opj_volume_t *volume);
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
==========================================================
|
|||
|
|
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 J3D 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 j3d->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 volume from a JPEG-2000 codestream
|
|||
|
|
@param dinfo decompressor handle
|
|||
|
|
@param cio Input buffer stream
|
|||
|
|
@return Returns a decoded volume if successful, returns NULL otherwise
|
|||
|
|
*/
|
|||
|
|
OPJ_API opj_volume_t* OPJ_CALLCONV opj_decode(opj_dinfo_t *dinfo, opj_cio_t *cio);
|
|||
|
|
/**
|
|||
|
|
Creates a J3D/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 volume
|
|||
|
|
<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 volume and using user parameters.
|
|||
|
|
@param cinfo compressor handle
|
|||
|
|
@param parameters compression parameters
|
|||
|
|
@param volume input filled volume
|
|||
|
|
*/
|
|||
|
|
OPJ_API void OPJ_CALLCONV opj_setup_encoder(opj_cinfo_t *cinfo, opj_cparameters_t *parameters, opj_volume_t *volume);
|
|||
|
|
/**
|
|||
|
|
Encode an volume into a JPEG-2000 codestream
|
|||
|
|
@param cinfo compressor handle
|
|||
|
|
@param cio Output buffer stream
|
|||
|
|
@param volume Volume to encode
|
|||
|
|
@param index Name of the index file if required, 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_volume_t *volume, char *index);
|
|||
|
|
|
|||
|
|
#ifdef __cplusplus
|
|||
|
|
}
|
|||
|
|
#endif
|
|||
|
|
|
|||
|
|
#endif /* OPENJPEG_H */
|