2 * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
3 * Copyright (c) 2002-2007, Professor Benoit Macq
4 * Copyright (c) 2001-2003, David Janssens
5 * Copyright (c) 2002-2003, Yannick Verschueren
6 * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
7 * Copyright (c) 2005, Herve Drolon, FreeImage Team
8 * Copyright (c) 2006-2007, Parvatha Elangovan
9 * Copyright (c) 2008, Jerome Fimes, Communications & Systemes <jerome.fimes@c-s.fr>
10 * Copyright (c) 2010-2011, Kaori Hagihara
11 * Copyright (c) 2011-2012, Centre National d'Etudes Spatiales (CNES), France
12 * Copyright (c) 2012, CS Systemes d'Information, France
13 * All rights reserved.
15 * Redistribution and use in source and binary forms, with or without
16 * modification, are permitted provided that the following conditions
18 * 1. Redistributions of source code must retain the above copyright
19 * notice, this list of conditions and the following disclaimer.
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in the
22 * documentation and/or other materials provided with the distribution.
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
41 ==========================================================
43 ==========================================================
46 /* deprecated attribute */
48 #define DEPRECATED(func) func __attribute__ ((deprecated))
49 #elif defined(_MSC_VER)
50 #define DEPRECATED(func) __declspec(deprecated) func
52 #pragma message("WARNING: You need to implement DEPRECATED for this compiler")
53 #define DEPRECATED(func) func
56 #if defined(OPJ_STATIC) || !defined(_WIN32)
57 /* http://gcc.gnu.org/wiki/Visibility */
59 #define OPJ_API __attribute__ ((visibility ("default")))
60 #define OPJ_LOCAL __attribute__ ((visibility ("hidden")))
67 #define OPJ_CALLCONV __stdcall
69 The following ifdef block is the standard way of creating macros which make exporting
70 from a DLL simpler. All files within this DLL are compiled with the OPJ_EXPORTS
71 symbol defined on the command line. this symbol should not be defined on any project
72 that uses this DLL. This way any other project whose source files include this file see
73 OPJ_API functions as being imported from a DLL, wheras this DLL sees symbols
74 defined with this macro as being exported.
76 #if defined(OPJ_EXPORTS) || defined(DLL_EXPORT)
77 #define OPJ_API __declspec(dllexport)
79 #define OPJ_API __declspec(dllimport)
80 #endif /* OPJ_EXPORTS */
81 #endif /* !OPJ_STATIC || !_WIN32 */
87 typedef char OPJ_CHAR;
88 typedef float OPJ_FLOAT32;
89 typedef double OPJ_FLOAT64;
90 typedef unsigned char OPJ_BYTE;
92 #include "opj_stdint.h"
94 typedef int8_t OPJ_INT8;
95 typedef uint8_t OPJ_UINT8;
96 typedef int16_t OPJ_INT16;
97 typedef uint16_t OPJ_UINT16;
98 typedef int32_t OPJ_INT32;
99 typedef uint32_t OPJ_UINT32;
100 typedef int64_t OPJ_INT64;
101 typedef uint64_t OPJ_UINT64;
103 typedef int64_t OPJ_OFF_T; /* 64-bit file offset type */
106 typedef size_t OPJ_SIZE_T;
108 /* Avoid compile-time warning because parameter is not used */
109 #define OPJ_ARG_NOT_USED(x) (void)(x)
112 ==========================================================
113 Useful constant definitions
114 ==========================================================
117 #define OPJ_PATH_LEN 4096 /**< Maximum allowed size for filenames */
119 #define OPJ_J2K_MAXRLVLS 33 /**< Number of maximum resolution level authorized */
120 #define OPJ_J2K_MAXBANDS (3*OPJ_J2K_MAXRLVLS-2) /**< Number of maximum sub-band linked to number of resolution level */
122 #define OPJ_J2K_DEFAULT_NB_SEGS 10
123 #define OPJ_J2K_STREAM_CHUNK_SIZE 0x100000 /** 1 mega by default */
124 #define OPJ_J2K_DEFAULT_HEADER_SIZE 1000
125 #define OPJ_J2K_MCC_DEFAULT_NB_RECORDS 10
126 #define OPJ_J2K_MCT_DEFAULT_NB_RECORDS 10
128 /* UniPG>> */ /* NOT YET USED IN THE V2 VERSION OF OPENJPEG */
129 #define JPWL_MAX_NO_TILESPECS 16 /**< Maximum number of tile parts expected by JPWL: increase at your will */
130 #define JPWL_MAX_NO_PACKSPECS 16 /**< Maximum number of packet parts expected by JPWL: increase at your will */
131 #define JPWL_MAX_NO_MARKERS 512 /**< Maximum number of JPWL markers: increase at your will */
132 #define JPWL_PRIVATEINDEX_NAME "jpwl_index_privatefilename" /**< index file name used when JPWL is on */
133 #define JPWL_EXPECTED_COMPONENTS 3 /**< Expect this number of components, so you'll find better the first EPB */
134 #define JPWL_MAXIMUM_TILES 8192 /**< Expect this maximum number of tiles, to avoid some crashes */
135 #define JPWL_MAXIMUM_HAMMING 2 /**< Expect this maximum number of bit errors in marker id's */
136 #define JPWL_MAXIMUM_EPB_ROOM 65450 /**< Expect this maximum number of bytes for composition of EPBs */
140 * EXPERIMENTAL FOR THE MOMENT
141 * Supported options about file information used only in j2k_dump
143 #define OPJ_IMG_INFO 1 /**< Basic image information provided to the user */
144 #define OPJ_J2K_MH_INFO 2 /**< Codestream information based only on the main header */
145 #define OPJ_J2K_TH_INFO 4 /**< Tile information based on the current tile header */
146 /*FIXME #define OPJ_J2K_CSTR_INFO 6*/ /**< */
147 #define OPJ_J2K_MH_IND 16 /**< Codestream index based only on the main header */
148 #define OPJ_J2K_TH_IND 32 /**< Tile index based on the current tile */
149 /*FIXME #define OPJ_J2K_CSTR_IND 48*/ /**< */
150 #define OPJ_JP2_INFO 128 /**< JP2 file information */
151 #define OPJ_JP2_IND 256 /**< JP2 file index */
155 ==========================================================
157 ==========================================================
162 typedef enum RSIZ_CAPABILITIES {
163 OPJ_STD_RSIZ = 0, /** Standard JPEG2000 profile*/
164 OPJ_CINEMA2K = 3, /** Profile name for a 2K image*/
165 OPJ_CINEMA4K = 4, /** Profile name for a 4K image*/
167 } OPJ_RSIZ_CAPABILITIES;
170 * Digital cinema operation mode
172 typedef enum CINEMA_MODE {
173 OPJ_OFF = 0, /** Not Digital Cinema*/
174 OPJ_CINEMA2K_24 = 1, /** 2K Digital Cinema at 24 fps*/
175 OPJ_CINEMA2K_48 = 2, /** 2K Digital Cinema at 48 fps*/
176 OPJ_CINEMA4K_24 = 3 /** 4K Digital Cinema at 24 fps*/
182 typedef enum PROG_ORDER {
183 OPJ_PROG_UNKNOWN = -1, /**< place-holder */
184 OPJ_LRCP = 0, /**< layer-resolution-component-precinct order */
185 OPJ_RLCP = 1, /**< resolution-layer-component-precinct order */
186 OPJ_RPCL = 2, /**< resolution-precinct-component-layer order */
187 OPJ_PCRL = 3, /**< precinct-component-resolution-layer order */
188 OPJ_CPRL = 4 /**< component-precinct-resolution-layer order */
192 * Supported image color spaces
194 typedef enum COLOR_SPACE {
195 OPJ_CLRSPC_UNKNOWN = -1, /**< not supported by the library */
196 OPJ_CLRSPC_UNSPECIFIED = 0, /**< not specified in the codestream */
197 OPJ_CLRSPC_SRGB = 1, /**< sRGB */
198 OPJ_CLRSPC_GRAY = 2, /**< grayscale */
199 OPJ_CLRSPC_SYCC = 3 /**< YUV */
205 typedef enum CODEC_FORMAT {
206 OPJ_CODEC_UNKNOWN = -1, /**< place-holder */
207 OPJ_CODEC_J2K = 0, /**< JPEG-2000 codestream : read/write */
208 OPJ_CODEC_JPT = 1, /**< JPT-stream (JPEG 2000, JPIP) : read only */
209 OPJ_CODEC_JP2 = 2 /**< JPEG-2000 file format : read/write */
214 ==========================================================
215 event manager typedef definitions
216 ==========================================================
220 * Callback function prototype for events
221 * @param msg Event message
222 * @param client_data Client object where will be return the event message
224 typedef void (*opj_msg_callback) (const char *msg, void *client_data);
227 ==========================================================
228 codec typedef definitions
229 ==========================================================
233 * Progression order changes
236 typedef struct opj_poc {
237 /** Resolution num start, Component num start, given by POC */
238 OPJ_UINT32 resno0, compno0;
239 /** Layer num end,Resolution num end, Component num end, given by POC */
240 OPJ_UINT32 layno1, resno1, compno1;
241 /** Layer num start,Precinct num start, Precinct num end */
242 OPJ_UINT32 layno0, precno0, precno1;
243 /** Progression order enum*/
244 OPJ_PROG_ORDER prg1,prg;
245 /** Progression order string*/
246 OPJ_CHAR progorder[5];
249 /** Start and end values for Tile width and height*/
250 OPJ_INT32 tx0,tx1,ty0,ty1;
251 /** Start value, initialised in pi_initialise_encode*/
252 OPJ_UINT32 layS, resS, compS, prcS;
253 /** End value, initialised in pi_initialise_encode */
254 OPJ_UINT32 layE, resE, compE, prcE;
255 /** Start and end values of Tile width and height, initialised in pi_initialise_encode*/
256 OPJ_UINT32 txS,txE,tyS,tyE,dx,dy;
257 /** Temporary values for Tile parts, initialised in pi_create_encode */
258 OPJ_UINT32 lay_t, res_t, comp_t, prc_t,tx0_t,ty0_t;
262 * Compression parameters
264 typedef struct opj_cparameters {
265 /** size of tile: tile_size_on = false (not in argument) or = true (in argument) */
266 OPJ_BOOL tile_size_on;
275 /** allocation by rate/distortion */
277 /** allocation by fixed layer */
279 /** add fixed_quality */
280 int cp_fixed_quality;
283 /** comment for coding */
285 /** csty : coding style */
287 /** progression order (default OPJ_LRCP) */
288 OPJ_PROG_ORDER prog_order;
289 /** progression order changes */
291 /** number of progression order changes (POC), default to 0 */
293 /** number of layers */
295 /** rates of layers */
296 float tcp_rates[100];
297 /** different psnr for successive layers */
298 float tcp_distoratio[100];
299 /** number of resolutions */
301 /** initial code block width, default to 64 */
303 /** initial code block height, default to 64 */
305 /** mode switch (cblk_style) */
307 /** 1 : use the irreversible DWT 9-7, 0 : use lossless compression (default) */
309 /** region of interest: affected component in [0..3], -1 means no ROI */
311 /** region of interest: upshift value */
313 /* number of precinct size specifications */
315 /** initial precinct width */
316 int prcw_init[OPJ_J2K_MAXRLVLS];
317 /** initial precinct height */
318 int prch_init[OPJ_J2K_MAXRLVLS];
320 /**@name command line encoder parameters (not used inside the library) */
322 /** input file name */
323 char infile[OPJ_PATH_LEN];
324 /** output file name */
325 char outfile[OPJ_PATH_LEN];
326 /** DEPRECATED. Index generation is now handeld with the opj_encode_with_info() function. Set to NULL */
328 /** DEPRECATED. Index generation is now handeld with the opj_encode_with_info() function. Set to NULL */
329 char index[OPJ_PATH_LEN];
330 /** subimage encoding: origin image offset in x direction */
332 /** subimage encoding: origin image offset in y direction */
334 /** subsampling value for dx */
336 /** subsampling value for dy */
338 /** input file format 0: PGX, 1: PxM, 2: BMP 3:TIF*/
340 /** output file format 0: J2K, 1: JP2, 2: JPT */
344 /* UniPG>> */ /* NOT YET USED IN THE V2 VERSION OF OPENJPEG */
345 /**@name JPWL encoding parameters */
347 /** enables writing of EPC in MH, thus activating JPWL */
348 OPJ_BOOL jpwl_epc_on;
349 /** error protection method for MH (0,1,16,32,37-128) */
351 /** tile number of header protection specification (>=0) */
352 int jpwl_hprot_TPH_tileno[JPWL_MAX_NO_TILESPECS];
353 /** error protection methods for TPHs (0,1,16,32,37-128) */
354 int jpwl_hprot_TPH[JPWL_MAX_NO_TILESPECS];
355 /** tile number of packet protection specification (>=0) */
356 int jpwl_pprot_tileno[JPWL_MAX_NO_PACKSPECS];
357 /** packet number of packet protection specification (>=0) */
358 int jpwl_pprot_packno[JPWL_MAX_NO_PACKSPECS];
359 /** error protection methods for packets (0,1,16,32,37-128) */
360 int jpwl_pprot[JPWL_MAX_NO_PACKSPECS];
361 /** enables writing of ESD, (0=no/1/2 bytes) */
363 /** sensitivity addressing size (0=auto/2/4 bytes) */
365 /** sensitivity range (0-3) */
367 /** sensitivity method for MH (-1=no,0-7) */
369 /** tile number of sensitivity specification (>=0) */
370 int jpwl_sens_TPH_tileno[JPWL_MAX_NO_TILESPECS];
371 /** sensitivity methods for TPHs (-1=no,0-7) */
372 int jpwl_sens_TPH[JPWL_MAX_NO_TILESPECS];
376 /** Digital Cinema compliance 0-not compliant, 1-compliant*/
377 OPJ_CINEMA_MODE cp_cinema;
378 /** Maximum rate for each component. If == 0, component size limitation is not considered */
381 OPJ_RSIZ_CAPABILITIES cp_rsiz;
382 /** Tile part generation*/
384 /** Flag for Tile part generation*/
386 /** MCT (multiple component transform) */
388 /** Enable JPIP indexing*/
390 /** Naive implementation of MCT restricted to a single reversible array based encoding without offset concerning all the components. */
394 #define OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG 0x0001
397 * Decompression parameters
399 typedef struct opj_dparameters {
401 Set the number of highest resolution levels to be discarded.
402 The image resolution is effectively divided by 2 to the power of the number of discarded levels.
403 The reduce factor is limited by the smallest total number of decomposition levels among tiles.
404 if != 0, then original dimension divided by 2^(reduce);
405 if == 0 or not used, image is decoded to the full resolution
407 OPJ_UINT32 cp_reduce;
409 Set the maximum number of quality layers to decode.
410 If there are less quality layers than the specified number, all the quality layers are decoded.
411 if != 0, then only the first "layer" layers are decoded;
412 if == 0 or not used, all the quality layers are decoded
416 /**@name command line decoder parameters (not used inside the library) */
418 /** input file name */
419 char infile[OPJ_PATH_LEN];
420 /** output file name */
421 char outfile[OPJ_PATH_LEN];
422 /** input file format 0: J2K, 1: JP2, 2: JPT */
424 /** output file format 0: PGX, 1: PxM, 2: BMP */
427 /** Decoding area left boundary */
429 /** Decoding area right boundary */
431 /** Decoding area up boundary */
433 /** Decoding area bottom boundary */
438 /** tile number ot the decoded tile*/
439 OPJ_UINT32 tile_index;
440 /** Nb of tile to decode */
441 OPJ_UINT32 nb_tile_to_decode;
445 /* UniPG>> */ /* NOT YET USED IN THE V2 VERSION OF OPENJPEG */
446 /**@name JPWL decoding parameters */
448 /** activates the JPWL correction capabilities */
449 OPJ_BOOL jpwl_correct;
450 /** expected number of components */
452 /** maximum number of tiles */
465 typedef void * opj_codec_t;
468 ==========================================================
469 I/O stream typedef definitions
470 ==========================================================
476 /** The stream was opened for reading. */
477 #define OPJ_STREAM_READ OPJ_TRUE
478 /** The stream was opened for writing. */
479 #define OPJ_STREAM_WRITE OPJ_FALSE
482 * Callback function prototype for read function
484 typedef OPJ_SIZE_T (* opj_stream_read_fn) (void * p_buffer, OPJ_SIZE_T p_nb_bytes, void * p_user_data) ;
487 * Callback function prototype for write function
489 typedef OPJ_SIZE_T (* opj_stream_write_fn) (void * p_buffer, OPJ_SIZE_T p_nb_bytes, void * p_user_data) ;
492 * Callback function prototype for skip function
494 typedef OPJ_OFF_T (* opj_stream_skip_fn) (OPJ_OFF_T p_nb_bytes, void * p_user_data) ;
497 * Callback function prototype for seek function
499 typedef OPJ_BOOL (* opj_stream_seek_fn) (OPJ_OFF_T p_nb_bytes, void * p_user_data) ;
504 typedef void * opj_stream_t;
507 ==========================================================
508 image typedef definitions
509 ==========================================================
513 * Defines a single image component
515 typedef struct opj_image_comp {
516 /** XRsiz: horizontal separation of a sample of ith component with respect to the reference grid */
518 /** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
524 /** x component offset compared to the whole image */
526 /** y component offset compared to the whole image */
530 /** image depth in bits */
532 /** signed (1) / unsigned (0) */
534 /** number of decoded resolution */
535 OPJ_UINT32 resno_decoded;
536 /** number of division by 2 of the out image compared to the original size of image */
538 /** image component data */
543 * Defines image data and characteristics
545 typedef struct opj_image {
546 /** XOsiz: horizontal offset from the origin of the reference grid to the left side of the image area */
548 /** YOsiz: vertical offset from the origin of the reference grid to the top side of the image area */
550 /** Xsiz: width of the reference grid */
552 /** Ysiz: height of the reference grid */
554 /** number of components in the image */
556 /** color space: sRGB, Greyscale or YUV */
557 OPJ_COLOR_SPACE color_space;
558 /** image components */
559 opj_image_comp_t *comps;
560 /** 'restricted' ICC profile */
561 OPJ_BYTE *icc_profile_buf;
562 /** size of ICC profile */
563 OPJ_UINT32 icc_profile_len;
568 * Component parameters structure used by the opj_image_create function
570 typedef struct opj_image_comptparm {
571 /** XRsiz: horizontal separation of a sample of ith component with respect to the reference grid */
573 /** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
579 /** x component offset compared to the whole image */
581 /** y component offset compared to the whole image */
585 /** image depth in bits */
587 /** signed (1) / unsigned (0) */
589 } opj_image_cmptparm_t;
593 ==========================================================
594 Information on the JPEG 2000 codestream
595 ==========================================================
597 /* QUITE EXPERIMENTAL FOR THE MOMENT */
600 * Index structure : Information concerning a packet inside tile
602 typedef struct opj_packet_info {
603 /** packet start position (including SOP marker if it exists) */
605 /** end of packet header position (including EPH marker if it exists)*/
606 OPJ_OFF_T end_ph_pos;
607 /** packet end position */
609 /** packet distorsion */
618 typedef struct opj_marker_info {
620 unsigned short int type;
621 /** position in codestream */
623 /** length, marker val included */
629 * Index structure : Information concerning tile-parts
631 typedef struct opj_tp_info {
632 /** start position of tile part */
634 /** end position of tile part header */
636 /** end position of tile part */
638 /** start packet of tile part */
640 /** number of packets of tile part */
645 * Index structure : information regarding tiles
647 typedef struct opj_tile_info {
648 /** value of thresh for each layer by tile cfr. Marcela */
650 /** number of tile */
652 /** start position */
654 /** end position of the header */
658 /** precinct number for each resolution level (width) */
660 /** precinct number for each resolution level (height) */
662 /** precinct size (in power of 2), in X for each resolution level */
664 /** precinct size (in power of 2), in Y for each resolution level */
666 /** information concerning packets inside tile */
667 opj_packet_info_t *packet;
668 /** add fixed_quality */
670 /** add fixed_quality */
672 /** number of markers */
674 /** list of markers */
675 opj_marker_info_t *marker;
676 /** actual size of markers array */
678 /** number of tile parts */
680 /** information concerning tile parts */
685 * Index structure of the codestream
687 typedef struct opj_codestream_info {
688 /** maximum distortion reduction on the whole image (add for Marcela) */
692 /** writing the packet in the index with t2_encode_packets */
698 /** progression order */
700 /** tile size in x */
702 /** tile size in y */
708 /** number of tiles in X */
710 /** number of tiles in Y */
712 /** component numbers */
714 /** number of layer */
716 /** number of decomposition for each component */
719 /** number of markers */
721 /** list of markers */
722 opj_marker_info_t *marker;
723 /** actual size of markers array */
726 /** main header position */
728 /** main header position */
730 /** codestream's size */
732 /** information regarding tiles inside image */
733 opj_tile_info_t *tile;
734 } opj_codestream_info_t;
736 /* <----------------------------------------------------------- */
737 /* new output managment of the codestream information and index */
740 * Tile-component coding parameters information
742 typedef struct opj_tccp_info
744 /** component index */
748 /** number of resolutions */
749 OPJ_UINT32 numresolutions;
750 /** code-blocks width */
752 /** code-blocks height */
754 /** code-block coding style */
756 /** discrete wavelet transform identifier */
758 /** quantisation style */
760 /** stepsizes used for quantization */
761 OPJ_UINT32 stepsizes_mant[OPJ_J2K_MAXBANDS];
762 /** stepsizes used for quantization */
763 OPJ_UINT32 stepsizes_expn[OPJ_J2K_MAXBANDS];
764 /** number of guard bits */
766 /** Region Of Interest shift */
768 /** precinct width */
769 OPJ_UINT32 prcw[OPJ_J2K_MAXRLVLS];
770 /** precinct height */
771 OPJ_UINT32 prch[OPJ_J2K_MAXRLVLS];
776 * Tile coding parameters information
778 typedef struct opj_tile_v2_info {
780 /** number (index) of tile */
784 /** progression order */
786 /** number of layers */
787 OPJ_UINT32 numlayers;
788 /** multi-component transform identifier */
791 /** information concerning tile component parameters*/
792 opj_tccp_info_t *tccp_info;
794 } opj_tile_info_v2_t;
797 * Information structure about the codestream (FIXME should be expand and enhance)
799 typedef struct opj_codestream_info_v2 {
801 /** tile origin in x = XTOsiz */
803 /** tile origin in y = YTOsiz */
805 /** tile size in x = XTsiz */
807 /** tile size in y = YTsiz */
809 /** number of tiles in X */
811 /** number of tiles in Y */
814 /** number of components*/
817 /** Default information regarding tiles inside image */
818 opj_tile_info_v2_t m_default_tile_info;
820 /** information regarding tiles inside image */
821 opj_tile_info_v2_t *tile_info; /* FIXME not used for the moment */
823 } opj_codestream_info_v2_t;
827 * Index structure about a tile part
829 typedef struct opj_tp_index {
830 /** start position */
832 /** end position of the header */
833 OPJ_OFF_T end_header;
840 * Index structure about a tile
842 typedef struct opj_tile_index {
846 /** number of tile parts */
848 /** current nb of tile part (allocated)*/
849 OPJ_UINT32 current_nb_tps;
850 /** current tile-part index */
851 OPJ_UINT32 current_tpsno;
852 /** information concerning tile parts */
853 opj_tp_index_t *tp_index;
855 /* UniPG>> */ /* NOT USED FOR THE MOMENT IN THE V2 VERSION */
856 /** number of markers */
858 /** list of markers */
859 opj_marker_info_t *marker;
860 /** actual size of markers array */
861 OPJ_UINT32 maxmarknum;
865 OPJ_UINT32 nb_packet;
866 /** information concerning packets inside tile */
867 opj_packet_info_t *packet_index;
872 * Index structure of the codestream (FIXME should be expand and enhance)
874 typedef struct opj_codestream_index {
875 /** main header start position (SOC position) */
876 OPJ_OFF_T main_head_start;
877 /** main header end position (first SOT position) */
878 OPJ_OFF_T main_head_end;
880 /** codestream's size */
881 OPJ_UINT64 codestream_size;
883 /* UniPG>> */ /* NOT USED FOR THE MOMENT IN THE V2 VERSION */
884 /** number of markers */
886 /** list of markers */
887 opj_marker_info_t *marker;
888 /** actual size of markers array */
889 OPJ_UINT32 maxmarknum;
893 OPJ_UINT32 nb_of_tiles;
895 opj_tile_index_t *tile_index; /* FIXME not used for the moment */
897 }opj_codestream_index_t;
898 /* -----------------------------------------------------------> */
901 ==========================================================
902 Metadata from the JP2file
903 ==========================================================
907 * Info structure of the JP2 file
908 * EXPERIMENTAL FOR THE MOMENT
910 typedef struct opj_jp2_metadata {
914 } opj_jp2_metadata_t;
917 * Index structure of the JP2 file
918 * EXPERIMENTAL FOR THE MOMENT
920 typedef struct opj_jp2_index {
933 ==========================================================
935 ==========================================================
938 /* Get the version of the openjpeg library*/
939 OPJ_API const char * OPJ_CALLCONV opj_version(void);
942 ==========================================================
943 image functions definitions
944 ==========================================================
950 * @param numcmpts number of components
951 * @param cmptparms components parameters
952 * @param clrspc image color space
953 * @return returns a new image structure if successful, returns NULL otherwise
955 OPJ_API opj_image_t* OPJ_CALLCONV opj_image_create(OPJ_UINT32 numcmpts, opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc);
958 * Deallocate any resources associated with an image
960 * @param image image to be destroyed
962 OPJ_API void OPJ_CALLCONV opj_image_destroy(opj_image_t *image);
965 * Creates an image without allocating memory for the image (used in the new version of the library).
967 * @param numcmpts the number of components
968 * @param cmptparms the components parameters
969 * @param clrspc the image color space
971 * @return a new image structure if successful, NULL otherwise.
973 OPJ_API opj_image_t* OPJ_CALLCONV opj_image_tile_create(OPJ_UINT32 numcmpts, opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc);
976 ==========================================================
977 stream functions definitions
978 ==========================================================
982 * Creates an abstract stream. This function does nothing except allocating memory and initializing the abstract stream.
984 * @param p_is_input if set to true then the stream will be an input stream, an output stream else.
986 * @return a stream object.
988 OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_default_create(OPJ_BOOL p_is_input);
991 * Creates an abstract stream. This function does nothing except allocating memory and initializing the abstract stream.
993 * @param p_buffer_size FIXME DOC
994 * @param p_is_input if set to true then the stream will be an input stream, an output stream else.
996 * @return a stream object.
998 OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_create(OPJ_SIZE_T p_buffer_size, OPJ_BOOL p_is_input);
1001 * Destroys a stream created by opj_create_stream. This function does NOT close the abstract stream. If needed the user must
1002 * close its own implementation of the stream.
1004 * @param p_stream the stream to destroy.
1006 OPJ_API void OPJ_CALLCONV opj_stream_destroy(opj_stream_t* p_stream);
1009 * Sets the given function to be used as a read function.
1010 * @param p_stream the stream to modify
1011 * @param p_function the function to use a read function.
1013 OPJ_API void OPJ_CALLCONV opj_stream_set_read_function(opj_stream_t* p_stream, opj_stream_read_fn p_function);
1016 * Sets the given function to be used as a write function.
1017 * @param p_stream the stream to modify
1018 * @param p_function the function to use a write function.
1020 OPJ_API void OPJ_CALLCONV opj_stream_set_write_function(opj_stream_t* p_stream, opj_stream_write_fn p_function);
1023 * Sets the given function to be used as a skip function.
1024 * @param p_stream the stream to modify
1025 * @param p_function the function to use a skip function.
1027 OPJ_API void OPJ_CALLCONV opj_stream_set_skip_function(opj_stream_t* p_stream, opj_stream_skip_fn p_function);
1030 * Sets the given function to be used as a seek function, the stream is then seekable.
1031 * @param p_stream the stream to modify
1032 * @param p_function the function to use a skip function.
1034 OPJ_API void OPJ_CALLCONV opj_stream_set_seek_function(opj_stream_t* p_stream, opj_stream_seek_fn p_function);
1037 * Sets the given data to be used as a user data for the stream.
1038 * @param p_stream the stream to modify
1039 * @param p_data the data to set.
1041 OPJ_API void OPJ_CALLCONV opj_stream_set_user_data (opj_stream_t* p_stream, void * p_data);
1044 * Sets the length of the user data for the stream.
1046 * @param p_stream the stream to modify
1047 * @param data_length length of the user_data.
1049 OPJ_API void OPJ_CALLCONV opj_stream_set_user_data_length(opj_stream_t* p_stream, OPJ_UINT64 data_length);
1053 * Sets the stream to be a file stream. The FILE must have been open previously.
1054 * @param p_file the file stream to operate on
1055 * @param p_is_read_stream whether the stream is a read stream (true) or not (false)
1057 OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_create_default_file_stream (FILE * p_file, OPJ_BOOL p_is_read_stream);
1061 * @param p_file the file stream to operate on
1062 * @param p_buffer_size size of the chunk used to stream
1063 * @param p_is_read_stream whether the stream is a read stream (true) or not (false)
1065 OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_create_file_stream (FILE * p_file, OPJ_SIZE_T p_buffer_size, OPJ_BOOL p_is_read_stream);
1068 ==========================================================
1069 event manager functions definitions
1070 ==========================================================
1073 * Set the info handler use by openjpeg.
1074 * @param p_codec the codec previously initialise
1075 * @param p_callback the callback function which will be used
1076 * @param p_user_data client object where will be returned the message
1078 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_info_handler(opj_codec_t * p_codec,
1079 opj_msg_callback p_callback,
1080 void * p_user_data);
1082 * Set the warning handler use by openjpeg.
1083 * @param p_codec the codec previously initialise
1084 * @param p_callback the callback function which will be used
1085 * @param p_user_data client object where will be returned the message
1087 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_warning_handler(opj_codec_t * p_codec,
1088 opj_msg_callback p_callback,
1089 void * p_user_data);
1091 * Set the error handler use by openjpeg.
1092 * @param p_codec the codec previously initialise
1093 * @param p_callback the callback function which will be used
1094 * @param p_user_data client object where will be returned the message
1096 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_error_handler(opj_codec_t * p_codec,
1097 opj_msg_callback p_callback,
1098 void * p_user_data);
1101 ==========================================================
1102 codec functions definitions
1103 ==========================================================
1107 * Creates a J2K/JP2 decompression structure
1108 * @param format Decoder to select
1110 * @return Returns a handle to a decompressor if successful, returns NULL otherwise
1112 OPJ_API opj_codec_t* OPJ_CALLCONV opj_create_decompress(OPJ_CODEC_FORMAT format);
1115 * Destroy a decompressor handle
1117 * @param p_codec decompressor handle to destroy
1119 OPJ_API void OPJ_CALLCONV opj_destroy_codec(opj_codec_t * p_codec);
1122 * Read after the codestream if necessary
1123 * @param p_codec the JPEG2000 codec to read.
1124 * @param p_stream the JPEG2000 stream.
1126 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_end_decompress ( opj_codec_t *p_codec,
1127 opj_stream_t *p_stream);
1131 * Set decoding parameters to default values
1132 * @param parameters Decompression parameters
1134 OPJ_API void OPJ_CALLCONV opj_set_default_decoder_parameters(opj_dparameters_t *parameters);
1137 * Setup the decoder with decompression parameters provided by the user and with the message handler
1138 * provided by the user.
1140 * @param p_codec decompressor handler
1141 * @param parameters decompression parameters
1143 * @return true if the decoder is correctly set
1145 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_setup_decoder(opj_codec_t *p_codec,
1146 opj_dparameters_t *parameters );
1149 * Decodes an image header.
1151 * @param p_stream the jpeg2000 stream.
1152 * @param p_codec the jpeg2000 codec to read.
1153 * @param p_image the image structure initialized with the characteristics of encoded image.
1155 * @return true if the main header of the codestream and the JP2 header is correctly read.
1157 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_read_header ( opj_stream_t *p_stream,
1158 opj_codec_t *p_codec,
1159 opj_image_t **p_image);
1162 * Sets the given area to be decoded. This function should be called right after opj_read_header and before any tile header reading.
1164 * @param p_codec the jpeg2000 codec.
1165 * @param p_image the decoded image previously setted by opj_read_header
1166 * @param p_start_x the left position of the rectangle to decode (in image coordinates).
1167 * @param p_end_x the right position of the rectangle to decode (in image coordinates).
1168 * @param p_start_y the up position of the rectangle to decode (in image coordinates).
1169 * @param p_end_y the bottom position of the rectangle to decode (in image coordinates).
1171 * @return true if the area could be set.
1173 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_decode_area( opj_codec_t *p_codec,
1174 opj_image_t* p_image,
1175 OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
1176 OPJ_INT32 p_end_x, OPJ_INT32 p_end_y );
1179 * Decode an image from a JPEG-2000 codestream
1181 * @param p_decompressor decompressor handle
1182 * @param p_stream Input buffer stream
1183 * @param p_image the decoded image
1184 * @return true if success, otherwise false
1186 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_decode( opj_codec_t *p_decompressor,
1187 opj_stream_t *p_stream,
1188 opj_image_t *p_image);
1191 * Get the decoded tile from the codec
1193 * @param p_codec the jpeg2000 codec.
1194 * @param p_stream input streamm
1195 * @param p_image output image
1196 * @param tile_index index of the tile which will be decode
1198 * @return true if success, otherwise false
1200 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_get_decoded_tile( opj_codec_t *p_codec,
1201 opj_stream_t *p_stream,
1202 opj_image_t *p_image,
1203 OPJ_UINT32 tile_index);
1206 * Set the resolution factor of the decoded image
1207 * @param p_codec the jpeg2000 codec.
1208 * @param res_factor resolution factor to set
1210 * @return true if success, otherwise false
1212 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_decoded_resolution_factor(opj_codec_t *p_codec, OPJ_UINT32 res_factor);
1215 * Writes a tile with the given data.
1217 * @param p_codec the jpeg2000 codec.
1218 * @param p_tile_index the index of the tile to write. At the moment, the tiles must be written from 0 to n-1 in sequence.
1219 * @param p_data pointer to the data to write. Data is arranged in sequence, data_comp0, then data_comp1, then ... NO INTERLEAVING should be set.
1220 * @param p_data_size this value os used to make sure the data being written is correct. The size must be equal to the sum for each component of tile_width * tile_height * component_size. component_size can be 1,2 or 4 bytes, depending on the precision of the given component.
1221 * @param p_stream the stream to write data to.
1223 * @return true if the data could be written.
1225 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_write_tile ( opj_codec_t *p_codec,
1226 OPJ_UINT32 p_tile_index,
1228 OPJ_UINT32 p_data_size,
1229 opj_stream_t *p_stream );
1232 * Reads a tile header. This function is compulsory and allows one to know the size of the tile thta will be decoded.
1233 * The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile.
1235 * @param p_codec the jpeg2000 codec.
1236 * @param p_tile_index pointer to a value that will hold the index of the tile being decoded, in case of success.
1237 * @param p_data_size pointer to a value that will hold the maximum size of the decoded data, in case of success. In case
1238 * of truncated codestreams, the actual number of bytes decoded may be lower. The computation of the size is the same
1239 * as depicted in opj_write_tile.
1240 * @param p_tile_x0 pointer to a value that will hold the x0 pos of the tile (in the image).
1241 * @param p_tile_y0 pointer to a value that will hold the y0 pos of the tile (in the image).
1242 * @param p_tile_x1 pointer to a value that will hold the x1 pos of the tile (in the image).
1243 * @param p_tile_y1 pointer to a value that will hold the y1 pos of the tile (in the image).
1244 * @param p_nb_comps pointer to a value that will hold the number of components in the tile.
1245 * @param p_should_go_on pointer to a boolean that will hold the fact that the decoding should go on. In case the
1246 * codestream is over at the time of the call, the value will be set to false. The user should then stop
1248 * @param p_stream the stream to decode.
1249 * @return true if the tile header could be decoded. In case the decoding should end, the returned value is still true.
1250 * returning false may be the result of a shortage of memory or an internal error.
1252 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_read_tile_header( opj_codec_t *p_codec,
1253 opj_stream_t * p_stream,
1254 OPJ_UINT32 * p_tile_index,
1255 OPJ_UINT32 * p_data_size,
1256 OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0,
1257 OPJ_INT32 * p_tile_x1, OPJ_INT32 * p_tile_y1,
1258 OPJ_UINT32 * p_nb_comps,
1259 OPJ_BOOL * p_should_go_on );
1262 * Reads a tile data. This function is compulsory and allows one to decode tile data. opj_read_tile_header should be called before.
1263 * The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile.
1265 * @param p_codec the jpeg2000 codec.
1266 * @param p_tile_index the index of the tile being decoded, this should be the value set by opj_read_tile_header.
1267 * @param p_data pointer to a memory block that will hold the decoded data.
1268 * @param p_data_size size of p_data. p_data_size should be bigger or equal to the value set by opj_read_tile_header.
1269 * @param p_stream the stream to decode.
1271 * @return true if the data could be decoded.
1273 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_decode_tile_data( opj_codec_t *p_codec,
1274 OPJ_UINT32 p_tile_index,
1276 OPJ_UINT32 p_data_size,
1277 opj_stream_t *p_stream );
1279 /* COMPRESSION FUNCTIONS*/
1282 * Creates a J2K/JP2 compression structure
1283 * @param format Coder to select
1284 * @return Returns a handle to a compressor if successful, returns NULL otherwise
1286 OPJ_API opj_codec_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT format);
1289 Set encoding parameters to default values, that means :
1293 <li>Size of precinct : 2^15 x 2^15 (means 1 precinct)
1294 <li>Size of code-block : 64 x 64
1295 <li>Number of resolutions: 6
1296 <li>No SOP marker in the codestream
1297 <li>No EPH marker in the codestream
1298 <li>No sub-sampling in x or y direction
1299 <li>No mode switch activated
1300 <li>Progression order: LRCP
1302 <li>No ROI upshifted
1303 <li>No offset of the origin of the image
1304 <li>No offset of the origin of the tiles
1305 <li>Reversible DWT 5-3
1307 @param parameters Compression parameters
1309 OPJ_API void OPJ_CALLCONV opj_set_default_encoder_parameters(opj_cparameters_t *parameters);
1312 * Setup the encoder parameters using the current image and using user parameters.
1313 * @param p_codec Compressor handle
1314 * @param parameters Compression parameters
1315 * @param image Input filled image
1317 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_setup_encoder(opj_codec_t *p_codec,
1318 opj_cparameters_t *parameters,
1319 opj_image_t *image);
1322 * Start to compress the current image.
1323 * @param p_codec Compressor handle
1324 * @param image Input filled image
1325 * @param p_stream Input stgream
1327 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_start_compress ( opj_codec_t *p_codec,
1328 opj_image_t * p_image,
1329 opj_stream_t *p_stream);
1332 * End to compress the current image.
1333 * @param p_codec Compressor handle
1334 * @param p_stream Input stgream
1336 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_end_compress (opj_codec_t *p_codec,
1337 opj_stream_t *p_stream);
1340 * Encode an image into a JPEG-2000 codestream
1341 * @param p_codec compressor handle
1342 * @param p_stream Output buffer stream
1344 * @return Returns true if successful, returns false otherwise
1346 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_encode(opj_codec_t *p_codec,
1347 opj_stream_t *p_stream);
1349 ==========================================================
1350 codec output functions definitions
1351 ==========================================================
1353 /* EXPERIMENTAL FUNCTIONS FOR NOW, USED ONLY IN J2K_DUMP*/
1356 Destroy Codestream information after compression or decompression
1357 @param cstr_info Codestream information structure
1359 OPJ_API void OPJ_CALLCONV opj_destroy_cstr_info(opj_codestream_info_v2_t **cstr_info);
1363 * Dump the codec information into the output stream
1365 * @param p_codec the jpeg2000 codec.
1366 * @param info_flag type of information dump.
1367 * @param output_stream output stream where dump the informations get from the codec.
1370 OPJ_API void OPJ_CALLCONV opj_dump_codec( opj_codec_t *p_codec,
1371 OPJ_INT32 info_flag,
1372 FILE* output_stream);
1375 * Get the codestream information from the codec
1377 * @param p_codec the jpeg2000 codec.
1379 * @return a pointer to a codestream information structure.
1382 OPJ_API opj_codestream_info_v2_t* OPJ_CALLCONV opj_get_cstr_info(opj_codec_t *p_codec);
1385 * Get the codestream index from the codec
1387 * @param p_codec the jpeg2000 codec.
1389 * @return a pointer to a codestream index structure.
1392 OPJ_API opj_codestream_index_t * OPJ_CALLCONV opj_get_cstr_index(opj_codec_t *p_codec);
1394 OPJ_API void OPJ_CALLCONV opj_destroy_cstr_index(opj_codestream_index_t **p_cstr_index);
1398 * Get the JP2 file information from the codec FIXME
1400 * @param p_codec the jpeg2000 codec.
1402 * @return a pointer to a JP2 metadata structure.
1405 OPJ_API opj_jp2_metadata_t* OPJ_CALLCONV opj_get_jp2_metadata(opj_codec_t *p_codec);
1408 * Get the JP2 file index from the codec FIXME
1410 * @param p_codec the jpeg2000 codec.
1412 * @return a pointer to a JP2 index structure.
1415 OPJ_API opj_jp2_index_t* OPJ_CALLCONV opj_get_jp2_index(opj_codec_t *p_codec);
1419 ==========================================================
1421 ==========================================================
1425 * Sets the MCT matrix to use.
1427 * @param parameters the parameters to change.
1428 * @param pEncodingMatrix the encoding matrix.
1429 * @param p_dc_shift the dc shift coefficients to use.
1430 * @param pNbComp the number of components of the image.
1432 * @return true if the parameters could be set.
1434 OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_MCT( opj_cparameters_t *parameters,
1435 OPJ_FLOAT32 * pEncodingMatrix,
1436 OPJ_INT32 * p_dc_shift,
1437 OPJ_UINT32 pNbComp);
1445 #endif /* OPENJPEG_H */