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) 2011-2012, Centre National d'Etudes Spatiales (CNES), France
11 * 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.
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25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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40 @brief The JPEG-2000 Codestream Reader/Writer (J2K)
42 The functions in J2K.C have for goal to read/write the several parts of the codestream: markers and data.
45 /** @defgroup J2K J2K - JPEG-2000 codestream reader/writer */
48 #define J2K_CP_CSTY_PRT 0x01
49 #define J2K_CP_CSTY_SOP 0x02
50 #define J2K_CP_CSTY_EPH 0x04
51 #define J2K_CCP_CSTY_PRT 0x01
52 #define J2K_CCP_CBLKSTY_LAZY 0x01 /**< Selective arithmetic coding bypass */
53 #define J2K_CCP_CBLKSTY_RESET 0x02 /**< Reset context probabilities on coding pass boundaries */
54 #define J2K_CCP_CBLKSTY_TERMALL 0x04 /**< Termination on each coding pass */
55 #define J2K_CCP_CBLKSTY_VSC 0x08 /**< Vertically stripe causal context */
56 #define J2K_CCP_CBLKSTY_PTERM 0x10 /**< Predictable termination */
57 #define J2K_CCP_CBLKSTY_SEGSYM 0x20 /**< Segmentation symbols are used */
58 #define J2K_CCP_QNTSTY_NOQNT 0
59 #define J2K_CCP_QNTSTY_SIQNT 1
60 #define J2K_CCP_QNTSTY_SEQNT 2
62 /* ----------------------------------------------------------------------- */
64 #define J2K_MS_SOC 0xff4f /**< SOC marker value */
65 #define J2K_MS_SOT 0xff90 /**< SOT marker value */
66 #define J2K_MS_SOD 0xff93 /**< SOD marker value */
67 #define J2K_MS_EOC 0xffd9 /**< EOC marker value */
68 #define J2K_MS_SIZ 0xff51 /**< SIZ marker value */
69 #define J2K_MS_COD 0xff52 /**< COD marker value */
70 #define J2K_MS_COC 0xff53 /**< COC marker value */
71 #define J2K_MS_RGN 0xff5e /**< RGN marker value */
72 #define J2K_MS_QCD 0xff5c /**< QCD marker value */
73 #define J2K_MS_QCC 0xff5d /**< QCC marker value */
74 #define J2K_MS_POC 0xff5f /**< POC marker value */
75 #define J2K_MS_TLM 0xff55 /**< TLM marker value */
76 #define J2K_MS_PLM 0xff57 /**< PLM marker value */
77 #define J2K_MS_PLT 0xff58 /**< PLT marker value */
78 #define J2K_MS_PPM 0xff60 /**< PPM marker value */
79 #define J2K_MS_PPT 0xff61 /**< PPT marker value */
80 #define J2K_MS_SOP 0xff91 /**< SOP marker value */
81 #define J2K_MS_EPH 0xff92 /**< EPH marker value */
82 #define J2K_MS_CRG 0xff63 /**< CRG marker value */
83 #define J2K_MS_COM 0xff64 /**< COM marker value */
84 #define J2K_MS_CBD 0xff78 /**< CBD marker value */
85 #define J2K_MS_MCC 0xff75 /**< MCC marker value */
86 #define J2K_MS_MCT 0xff74 /**< MCT marker value */
87 #define J2K_MS_MCO 0xff77 /**< MCO marker value */
89 #define J2K_MS_UNK 0 /**< UNKNOWN marker value */
93 #define J2K_MS_EPC 0xff68 /**< EPC marker value (Part 11: JPEG 2000 for Wireless) */
94 #define J2K_MS_EPB 0xff66 /**< EPB marker value (Part 11: JPEG 2000 for Wireless) */
95 #define J2K_MS_ESD 0xff67 /**< ESD marker value (Part 11: JPEG 2000 for Wireless) */
96 #define J2K_MS_RED 0xff69 /**< RED marker value (Part 11: JPEG 2000 for Wireless) */
99 #define J2K_MS_SEC 0xff65 /**< SEC marker value (Part 8: Secure JPEG 2000) */
100 #define J2K_MS_INSEC 0xff94 /**< INSEC marker value (Part 8: Secure JPEG 2000) */
101 #endif /* USE_JPSEC */
104 /* ----------------------------------------------------------------------- */
107 * Values that specify the status of the decoding process when decoding the main header.
108 * These values may be combined with a | operator.
110 typedef enum J2K_STATUS {
111 J2K_STATE_NONE = 0x0000, /**< a SOC marker is expected */
112 J2K_STATE_MHSOC = 0x0001, /**< a SOC marker is expected */
113 J2K_STATE_MHSIZ = 0x0002, /**< a SIZ marker is expected */
114 J2K_STATE_MH = 0x0004, /**< the decoding process is in the main header */
115 J2K_STATE_TPHSOT = 0x0008, /**< the decoding process is in a tile part header and expects a SOT marker */
116 J2K_STATE_TPH = 0x0010, /**< the decoding process is in a tile part header */
117 J2K_STATE_MT = 0x0020, /**< the EOC marker has just been read */
118 J2K_STATE_NEOC = 0x0040, /**< the decoding process must not expect a EOC marker because the codestream is truncated */
120 J2K_STATE_EOC = 0x0100, /**< the decoding process has encountered the EOC marker */
121 J2K_STATE_ERR = 0x8000 /**< the decoding process has encountered an error (FIXME warning V1 = 0x0080)*/
125 * Type of elements storing in the MCT data
127 typedef enum MCT_ELEMENT_TYPE
129 MCT_TYPE_INT16 = 0, /** MCT data is stored as signed shorts*/
130 MCT_TYPE_INT32 = 1, /** MCT data is stored as signed integers*/
131 MCT_TYPE_FLOAT = 2, /** MCT data is stored as floats*/
132 MCT_TYPE_DOUBLE = 3 /** MCT data is stored as doubles*/
133 } J2K_MCT_ELEMENT_TYPE;
138 typedef enum MCT_ARRAY_TYPE
140 MCT_TYPE_DEPENDENCY = 0,
141 MCT_TYPE_DECORRELATION = 1,
143 } J2K_MCT_ARRAY_TYPE;
145 /* ----------------------------------------------------------------------- */
150 typedef enum T2_MODE {
151 THRESH_CALC = 0, /** Function called in Rate allocation process*/
152 FINAL_PASS = 1 /** Function called in Tier 2 process*/
156 * Quantization stepsize
158 typedef struct opj_stepsize {
166 Tile-component coding parameters
168 typedef struct opj_tccp
172 /** number of resolutions */
173 OPJ_UINT32 numresolutions;
174 /** code-blocks width */
176 /** code-blocks height */
178 /** code-block coding style */
180 /** discrete wavelet transform identifier */
182 /** quantisation style */
184 /** stepsizes used for quantization */
185 opj_stepsize_t stepsizes[OPJ_J2K_MAXBANDS];
186 /** number of guard bits */
188 /** Region Of Interest shift */
190 /** precinct width */
191 OPJ_UINT32 prcw[OPJ_J2K_MAXRLVLS];
192 /** precinct height */
193 OPJ_UINT32 prch[OPJ_J2K_MAXRLVLS];
194 /** the dc_level_shift **/
195 OPJ_INT32 m_dc_level_shift;
204 typedef struct opj_mct_data
206 J2K_MCT_ELEMENT_TYPE m_element_type;
207 J2K_MCT_ARRAY_TYPE m_array_type;
210 OPJ_UINT32 m_data_size;
217 typedef struct opj_simple_mcc_decorrelation_data
220 OPJ_UINT32 m_nb_comps;
221 opj_mct_data_t * m_decorrelation_array;
222 opj_mct_data_t * m_offset_array;
223 OPJ_UINT32 m_is_irreversible : 1;
225 opj_simple_mcc_decorrelation_data_t;
228 Tile coding parameters :
229 this structure is used to store coding/decoding parameters common to all
230 tiles (information like COD, COC in main header)
232 typedef struct opj_tcp
236 /** progression order */
238 /** number of layers */
239 OPJ_UINT32 numlayers;
240 OPJ_UINT32 num_layers_to_decode;
241 /** multi-component transform identifier */
243 /** rates of layers */
244 OPJ_FLOAT32 rates[100];
245 /** number of progression order changes */
247 /** progression order changes */
249 /** packet header store there for futur use in t2_decode_packet */
251 /** used to keep a track of the allocated memory */
252 OPJ_BYTE *ppt_buffer;
253 /** Number of bytes stored inside ppt_data*/
254 OPJ_UINT32 ppt_data_size;
255 /** size of ppt_data*/
257 /** add fixed_quality */
258 OPJ_FLOAT32 distoratio[100];
259 /** tile-component coding parameters */
261 /** number of tile parts for the tile. */
262 OPJ_UINT32 m_nb_tile_parts;
263 /** data for the tile */
266 OPJ_UINT32 m_data_size;
267 /** encoding norms */
268 OPJ_FLOAT64 * mct_norms;
269 /** the mct decoding matrix */
270 OPJ_FLOAT32 * m_mct_decoding_matrix;
271 /** the mct coding matrix */
272 OPJ_FLOAT32 * m_mct_coding_matrix;
274 opj_mct_data_t * m_mct_records;
275 /** the number of mct records. */
276 OPJ_UINT32 m_nb_mct_records;
277 /** the max number of mct records. */
278 OPJ_UINT32 m_nb_max_mct_records;
280 opj_simple_mcc_decorrelation_data_t * m_mcc_records;
281 /** the number of mct records. */
282 OPJ_UINT32 m_nb_mcc_records;
283 /** the max number of mct records. */
284 OPJ_UINT32 m_nb_max_mcc_records;
287 /***** FLAGS *******/
288 /** If ppt == 1 --> there was a PPT marker for the present tile */
290 /** indicates if a POC marker has been used O:NO, 1:YES */
297 typedef struct opj_encoding_param
299 /** Digital cinema profile*/
300 OPJ_CINEMA_MODE m_cinema;
301 /** Maximum rate for each component. If == 0, component size limitation is not considered */
302 OPJ_UINT32 m_max_comp_size;
303 /** Position of tile part flag in progression order*/
306 OPJ_INT32 *m_matrice;
307 /** Flag determining tile part generation*/
309 /** allocation by rate/distortion */
310 OPJ_UINT32 m_disto_alloc : 1;
311 /** allocation by fixed layer */
312 OPJ_UINT32 m_fixed_alloc : 1;
313 /** add fixed_quality */
314 OPJ_UINT32 m_fixed_quality : 1;
315 /** Enabling Tile part generation*/
316 OPJ_UINT32 m_tp_on : 1;
318 opj_encoding_param_t;
320 typedef struct opj_decoding_param
322 /** if != 0, then original dimension divided by 2^(reduce); if == 0 or not used, image is decoded to the full resolution */
324 /** if != 0, then only the first "layer" layers are decoded; if == 0 or not used, all the quality layers are decoded */
327 opj_decoding_param_t;
333 typedef struct opj_cp
335 /** Size of the image in bits*/
338 OPJ_RSIZ_CAPABILITIES rsiz;
340 OPJ_UINT32 tx0; /* MSD see norm */
342 OPJ_UINT32 ty0; /* MSD see norm */
349 /** number of tiles in width */
351 /** number of tiles in heigth */
354 /** packet header store there for futur use in t2_decode_packet */
356 /** size of the ppm_data*/
358 /** size of the ppm_data*/
359 OPJ_UINT32 ppm_data_read;
361 OPJ_BYTE *ppm_data_current;
363 /** packet header storage original buffer */
364 OPJ_BYTE *ppm_buffer;
365 /** pointer remaining on the first byte of the first header if ppm is used */
366 OPJ_BYTE *ppm_data_first;
367 /** Number of bytes actually stored inside the ppm_data */
368 OPJ_UINT32 ppm_data_size;
369 /** use in case of multiple marker PPM (number of info already store) */
371 /** use in case of multiple marker PPM (case on non-finished previous info) */
372 OPJ_INT32 ppm_previous;
374 /** tile coding parameters */
379 opj_decoding_param_t m_dec;
380 opj_encoding_param_t m_enc;
387 /** enables writing of EPC in MH, thus activating JPWL */
389 /** enables writing of EPB, in case of activated JPWL */
391 /** enables writing of ESD, in case of activated JPWL */
393 /** enables writing of informative techniques of ESD, in case of activated JPWL */
395 /** enables writing of RED, in case of activated JPWL */
397 /** error protection method for MH (0,1,16,32,37-128) */
399 /** tile number of header protection specification (>=0) */
400 int hprot_TPH_tileno[JPWL_MAX_NO_TILESPECS];
401 /** error protection methods for TPHs (0,1,16,32,37-128) */
402 int hprot_TPH[JPWL_MAX_NO_TILESPECS];
403 /** tile number of packet protection specification (>=0) */
404 int pprot_tileno[JPWL_MAX_NO_PACKSPECS];
405 /** packet number of packet protection specification (>=0) */
406 int pprot_packno[JPWL_MAX_NO_PACKSPECS];
407 /** error protection methods for packets (0,1,16,32,37-128) */
408 int pprot[JPWL_MAX_NO_PACKSPECS];
409 /** enables writing of ESD, (0/2/4 bytes) */
411 /** sensitivity addressing size (0=auto/2/4 bytes) */
413 /** sensitivity range (0-3) */
415 /** sensitivity method for MH (-1,0-7) */
417 /** tile number of sensitivity specification (>=0) */
418 int sens_TPH_tileno[JPWL_MAX_NO_TILESPECS];
419 /** sensitivity methods for TPHs (-1,0-7) */
420 int sens_TPH[JPWL_MAX_NO_TILESPECS];
421 /** enables JPWL correction at the decoder */
423 /** expected number of components at the decoder */
425 /** maximum number of tiles at the decoder */
426 OPJ_UINT32 max_tiles;
427 #endif /* USE_JPWL */
429 /******** FLAGS *********/
430 /** if ppm == 1 --> there was a PPM marker*/
432 /** tells if the parameter is a coding or decoding one */
433 OPJ_UINT32 m_is_decoder : 1;
438 typedef struct opj_j2k_dec
440 /** locate in which part of the codestream the decoder is (main header, tile header, end) */
443 * store decoding parameters common to all tiles (information like COD, COC in main header)
445 opj_tcp_t *m_default_tcp;
446 OPJ_BYTE *m_header_data;
447 OPJ_UINT32 m_header_data_size;
448 /** to tell the tile part length */
449 OPJ_UINT32 m_sot_length;
450 /** Only tiles index in the correct range will be decoded.*/
451 OPJ_UINT32 m_start_tile_x;
452 OPJ_UINT32 m_start_tile_y;
453 OPJ_UINT32 m_end_tile_x;
454 OPJ_UINT32 m_end_tile_y;
456 * Decoded area set by the user
463 /** Index of the tile to decode (used in get_tile) */
464 OPJ_INT32 m_tile_ind_to_dec;
465 /** Position of the last SOT marker read */
466 OPJ_OFF_T m_last_sot_read_pos;
469 * Indicate that the current tile-part is assume as the last tile part of the codestream.
470 * It is useful in the case of PSot is equal to zero. The sot length will be compute in the
471 * SOD reader function. FIXME NOT USED for the moment
473 OPJ_BOOL m_last_tile_part;
474 /** to tell that a tile can be decoded. */
475 OPJ_UINT32 m_can_decode : 1;
476 OPJ_UINT32 m_discard_tiles : 1;
477 OPJ_UINT32 m_skip_data : 1;
481 typedef struct opj_j2k_enc
483 /** Tile part number, regardless of poc, for each new poc, tp is reset to 1*/
484 OPJ_UINT32 m_current_poc_tile_part_number; /* tp_num */
486 /** Tile part number currently coding, taking into account POC. m_current_tile_part_number holds the total number of tile parts while encoding the last tile part.*/
487 OPJ_UINT32 m_current_tile_part_number; /*cur_tp_num */
490 locate the start position of the TLM marker
491 after encoding the tilepart, a jump (in j2k_write_sod) is done to the TLM marker to store the value of its length.
493 OPJ_OFF_T m_tlm_start;
495 * Stores the sizes of the tlm.
497 OPJ_BYTE * m_tlm_sot_offsets_buffer;
499 * The current offset of the tlm buffer.
501 OPJ_BYTE * m_tlm_sot_offsets_current;
503 /** Total num of tile parts in whole image = num tiles* num tileparts in each tile*/
504 /** used in TLMmarker*/
505 OPJ_UINT32 m_total_tile_parts; /* totnum_tp */
507 /* encoded data for a tile */
508 OPJ_BYTE * m_encoded_tile_data;
510 /* size of the encoded_data */
511 OPJ_UINT32 m_encoded_tile_size;
513 /* encoded data for a tile */
514 OPJ_BYTE * m_header_tile_data;
516 /* size of the encoded_data */
517 OPJ_UINT32 m_header_tile_data_size;
526 JPEG-2000 codestream reader/writer
528 typedef struct opj_j2k
530 /* J2K codestream is decoded*/
531 OPJ_BOOL m_is_decoder;
536 opj_j2k_dec_t m_decoder;
537 opj_j2k_enc_t m_encoder;
541 /** pointer to the internal/private encoded / decoded image */
542 opj_image_t* m_private_image;
544 /* pointer to the output image (decoded)*/
545 opj_image_t* m_output_image;
547 /** Coding parameters */
550 /** the list of procedures to exec **/
551 opj_procedure_list_t * m_procedure_list;
553 /** the list of validation procedures to follow to make sure the code is valid **/
554 opj_procedure_list_t * m_validation_list;
556 /** helper used to write the index file */
557 opj_codestream_index_t *cstr_index;
559 /** number of the tile curently concern by coding/decoding */
560 OPJ_UINT32 m_current_tile_number;
562 /** the current tile coder/decoder **/
563 struct opj_tcd * m_tcd;
571 /** @name Exported functions */
573 /* ----------------------------------------------------------------------- */
576 Setup the decoder decoding parameters using user parameters.
577 Decoding parameters are returned in j2k->cp.
578 @param j2k J2K decompressor handle
579 @param parameters decompression parameters
581 void opj_j2k_setup_decoder(opj_j2k_t *j2k, opj_dparameters_t *parameters);
584 * Creates a J2K compression structure
586 * @return Returns a handle to a J2K compressor if successful, returns NULL otherwise
588 opj_j2k_t* opj_j2k_create_compress(void);
591 void opj_j2k_setup_encoder( opj_j2k_t *p_j2k,
592 opj_cparameters_t *parameters,
594 opj_event_mgr_t * p_manager);
597 Converts an enum type progression order to string type
599 char *opj_j2k_convert_progression_order(OPJ_PROG_ORDER prg_order);
601 /* ----------------------------------------------------------------------- */
607 * Ends the decompression procedures and possibiliy add data to be read after the
610 OPJ_BOOL opj_j2k_end_decompress(opj_j2k_t *j2k,
611 opj_stream_private_t *p_stream,
612 opj_event_mgr_t * p_manager);
615 * Reads a jpeg2000 codestream header structure.
617 * @param p_stream the stream to read data from.
618 * @param p_j2k the jpeg2000 codec.
619 * @param p_image FIXME DOC
620 * @param p_manager the user event manager.
622 * @return true if the box is valid.
624 OPJ_BOOL opj_j2k_read_header( opj_stream_private_t *p_stream,
626 opj_image_t** p_image,
627 opj_event_mgr_t* p_manager );
631 * Destroys a jpeg2000 codec.
633 * @param p_j2k the jpeg20000 structure to destroy.
635 void opj_j2k_destroy (opj_j2k_t *p_j2k);
638 * Destroys a codestream index structure.
640 * @param p_cstr_ind the codestream index parameter to destroy.
642 void j2k_destroy_cstr_index (opj_codestream_index_t *p_cstr_ind);
646 * @param p_j2k the jpeg2000 codec.
647 * @param p_tile_index
648 * @param p_data FIXME DOC
649 * @param p_data_size FIXME DOC
650 * @param p_stream the stream to write data to.
651 * @param p_manager the user event manager.
653 OPJ_BOOL opj_j2k_decode_tile ( opj_j2k_t * p_j2k,
654 OPJ_UINT32 p_tile_index,
656 OPJ_UINT32 p_data_size,
657 opj_stream_private_t *p_stream,
658 opj_event_mgr_t * p_manager );
661 * Reads a tile header.
662 * @param p_j2k the jpeg2000 codec.
663 * @param p_tile_index FIXME DOC
664 * @param p_data_size FIXME DOC
665 * @param p_tile_x0 FIXME DOC
666 * @param p_tile_y0 FIXME DOC
667 * @param p_tile_x1 FIXME DOC
668 * @param p_tile_y1 FIXME DOC
669 * @param p_nb_comps FIXME DOC
670 * @param p_go_on FIXME DOC
671 * @param p_stream the stream to write data to.
672 * @param p_manager the user event manager.
674 OPJ_BOOL opj_j2k_read_tile_header ( opj_j2k_t * p_j2k,
675 OPJ_UINT32 * p_tile_index,
676 OPJ_UINT32 * p_data_size,
677 OPJ_INT32 * p_tile_x0,
678 OPJ_INT32 * p_tile_y0,
679 OPJ_INT32 * p_tile_x1,
680 OPJ_INT32 * p_tile_y1,
681 OPJ_UINT32 * p_nb_comps,
683 opj_stream_private_t *p_stream,
684 opj_event_mgr_t * p_manager );
688 * Sets the given area to be decoded. This function should be called right after opj_read_header and before any tile header reading.
690 * @param p_j2k the jpeg2000 codec.
691 * @param p_image FIXME DOC
692 * @param p_start_x the left position of the rectangle to decode (in image coordinates).
693 * @param p_start_y the up position of the rectangle to decode (in image coordinates).
694 * @param p_end_x the right position of the rectangle to decode (in image coordinates).
695 * @param p_end_y the bottom position of the rectangle to decode (in image coordinates).
696 * @param p_manager the user event manager
698 * @return true if the area could be set.
700 OPJ_BOOL opj_j2k_set_decode_area( opj_j2k_t *p_j2k,
701 opj_image_t* p_image,
702 OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
703 OPJ_INT32 p_end_x, OPJ_INT32 p_end_y,
704 opj_event_mgr_t * p_manager );
707 * Creates a J2K decompression structure.
709 * @return a handle to a J2K decompressor if successful, NULL otherwise.
711 opj_j2k_t* opj_j2k_create_decompress(void);
715 * Dump some elements from the J2K decompression structure .
717 *@param p_j2k the jpeg2000 codec.
718 *@param flag flag to describe what elments are dump.
719 *@param out_stream output stream where dump the elements.
722 void j2k_dump (opj_j2k_t* p_j2k, OPJ_INT32 flag, FILE* out_stream);
727 * Dump an image header structure.
729 *@param image the image header to dump.
730 *@param dev_dump_flag flag to describe if we are in the case of this function is use outside j2k_dump function
731 *@param out_stream output stream where dump the elements.
733 void j2k_dump_image_header(opj_image_t* image, OPJ_BOOL dev_dump_flag, FILE* out_stream);
736 * Dump a component image header structure.
738 *@param comp the component image header to dump.
739 *@param dev_dump_flag flag to describe if we are in the case of this function is use outside j2k_dump function
740 *@param out_stream output stream where dump the elements.
742 void j2k_dump_image_comp_header(opj_image_comp_t* comp, OPJ_BOOL dev_dump_flag, FILE* out_stream);
745 * Get the codestream info from a JPEG2000 codec.
747 *@param p_j2k the component image header to dump.
749 *@return the codestream information extract from the jpg2000 codec
751 opj_codestream_info_v2_t* j2k_get_cstr_info(opj_j2k_t* p_j2k);
754 * Get the codestream index from a JPEG2000 codec.
756 *@param p_j2k the component image header to dump.
758 *@return the codestream index extract from the jpg2000 codec
760 opj_codestream_index_t* j2k_get_cstr_index(opj_j2k_t* p_j2k);
763 * Decode an image from a JPEG-2000 codestream
764 * @param j2k J2K decompressor handle
765 * @param p_stream FIXME DOC
766 * @param p_image FIXME DOC
767 * @param p_manager FIXME DOC
770 OPJ_BOOL opj_j2k_decode(opj_j2k_t *j2k,
771 opj_stream_private_t *p_stream,
772 opj_image_t *p_image,
773 opj_event_mgr_t *p_manager);
776 OPJ_BOOL opj_j2k_get_tile( opj_j2k_t *p_j2k,
777 opj_stream_private_t *p_stream,
778 opj_image_t* p_image,
779 opj_event_mgr_t * p_manager,
780 OPJ_UINT32 tile_index );
782 OPJ_BOOL opj_j2k_set_decoded_resolution_factor(opj_j2k_t *p_j2k,
783 OPJ_UINT32 res_factor,
784 opj_event_mgr_t * p_manager);
789 * @param p_j2k the jpeg2000 codec.
790 * @param p_tile_index FIXME DOC
791 * @param p_data FIXME DOC
792 * @param p_data_size FIXME DOC
793 * @param p_stream the stream to write data to.
794 * @param p_manager the user event manager.
796 OPJ_BOOL opj_j2k_write_tile ( opj_j2k_t * p_j2k,
797 OPJ_UINT32 p_tile_index,
799 OPJ_UINT32 p_data_size,
800 opj_stream_private_t *p_stream,
801 opj_event_mgr_t * p_manager );
804 * Encodes an image into a JPEG-2000 codestream
806 OPJ_BOOL opj_j2k_encode( opj_j2k_t * p_j2k,
807 opj_stream_private_t *cio,
808 opj_event_mgr_t * p_manager );
811 * Starts a compression scheme, i.e. validates the codec parameters, writes the header.
813 * @param p_j2k the jpeg2000 codec.
814 * @param p_stream the stream object.
815 * @param p_image FIXME DOC
816 * @param p_manager the user event manager.
818 * @return true if the codec is valid.
820 OPJ_BOOL opj_j2k_start_compress(opj_j2k_t *p_j2k,
821 opj_stream_private_t *p_stream,
822 opj_image_t * p_image,
823 opj_event_mgr_t * p_manager);
826 * Ends the compression procedures and possibiliy add data to be read after the
829 OPJ_BOOL opj_j2k_end_compress( opj_j2k_t *p_j2k,
830 opj_stream_private_t *cio,
831 opj_event_mgr_t * p_manager);
833 OPJ_BOOL opj_j2k_setup_mct_encoding (opj_tcp_t * p_tcp, opj_image_t * p_image);