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7 * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
8 * Copyright (c) 2002-2014, Professor Benoit Macq
9 * Copyright (c) 2002-2003, Yannick Verschueren
10 * Copyright (c) 2005, Herve Drolon, FreeImage Team
11 * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR
12 * Copyright (c) 2012, CS Systemes d'Information, France
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40 @brief The JPEG-2000 file format Reader/Writer (JP2)
44 /** @defgroup JP2 JP2 - JPEG-2000 file format reader/writer */
47 /*#define JPIP_JPIP 0x6a706970*/
49 #define JP2_JP 0x6a502020 /**< JPEG 2000 signature box */
50 #define JP2_FTYP 0x66747970 /**< File type box */
51 #define JP2_JP2H 0x6a703268 /**< JP2 header box (super-box) */
52 #define JP2_IHDR 0x69686472 /**< Image header box */
53 #define JP2_COLR 0x636f6c72 /**< Colour specification box */
54 #define JP2_JP2C 0x6a703263 /**< Contiguous codestream box */
55 #define JP2_URL 0x75726c20 /**< Data entry URL box */
56 #define JP2_PCLR 0x70636c72 /**< Palette box */
57 #define JP2_CMAP 0x636d6170 /**< Component Mapping box */
58 #define JP2_CDEF 0x63646566 /**< Channel Definition box */
59 #define JP2_DTBL 0x6474626c /**< Data Reference box */
60 #define JP2_BPCC 0x62706363 /**< Bits per component box */
61 #define JP2_JP2 0x6a703220 /**< File type fields */
64 /* #define JP2_RES 0x72657320 */ /**< Resolution box (super-box) */
65 /* #define JP2_JP2I 0x6a703269 */ /**< Intellectual property box */
66 /* #define JP2_XML 0x786d6c20 */ /**< XML box */
67 /* #define JP2_UUID 0x75756994 */ /**< UUID box */
68 /* #define JP2_UINF 0x75696e66 */ /**< UUID info box (super-box) */
69 /* #define JP2_ULST 0x756c7374 */ /**< UUID list box */
71 /* ----------------------------------------------------------------------- */
76 JP2_STATE_SIGNATURE = 0x1,
77 JP2_STATE_FILE_TYPE = 0x2,
78 JP2_STATE_HEADER = 0x4,
79 JP2_STATE_CODESTREAM = 0x8,
80 JP2_STATE_END_CODESTREAM = 0x10,
81 JP2_STATE_UNKNOWN = 0x7fffffff /* ISO C restricts enumerator values to range of 'int' */
87 JP2_IMG_STATE_NONE = 0x0,
88 JP2_IMG_STATE_UNKNOWN = 0x7fffffff
93 Channel description: channel index, type, association
95 typedef struct opj_jp2_cdef_info
97 OPJ_UINT16 cn, typ, asoc;
98 } opj_jp2_cdef_info_t;
101 Channel descriptions and number of descriptions
103 typedef struct opj_jp2_cdef
105 opj_jp2_cdef_info_t *info;
110 Component mappings: channel index, mapping type, palette index
112 typedef struct opj_jp2_cmap_comp
116 } opj_jp2_cmap_comp_t;
119 Palette data: table entries, palette columns
121 typedef struct opj_jp2_pclr
124 OPJ_BYTE *channel_sign;
125 OPJ_BYTE *channel_size;
126 opj_jp2_cmap_comp_t *cmap;
127 OPJ_UINT16 nr_entries;
128 OPJ_BYTE nr_channels;
132 Collector for ICC profile, palette, component mapping, channel description
134 typedef struct opj_jp2_color
136 OPJ_BYTE *icc_profile_buf;
137 OPJ_UINT32 icc_profile_len;
139 opj_jp2_cdef_t *jp2_cdef;
140 opj_jp2_pclr_t *jp2_pclr;
141 OPJ_BYTE jp2_has_colr;
147 typedef struct opj_jp2_comps {
154 JPEG-2000 file format reader/writer
156 typedef struct opj_jp2
158 /** handle to the J2K codec */
160 /** list of validation procedures */
161 struct opj_procedure_list * m_validation_list;
162 /** list of execution procedures */
163 struct opj_procedure_list * m_procedure_list;
167 /* height of image */
169 /* number of components in the image */
178 OPJ_UINT32 precedence;
180 OPJ_UINT32 minversion;
183 opj_jp2_comps_t *comps;
184 /* FIXME: The following two variables are used to save offset
185 as we write out a JP2 file to disk. This mecanism is not flexible
186 as codec writers will need to extand those fields as new part
187 of the standard are implemented.
189 OPJ_OFF_T j2k_codestream_offset;
190 OPJ_OFF_T jpip_iptr_offset;
192 OPJ_UINT32 jp2_state;
193 OPJ_UINT32 jp2_img_state;
195 opj_jp2_color_t color;
197 OPJ_BOOL ignore_pclr_cmap_cdef;
204 typedef struct opj_jp2_box {
210 typedef struct opj_jp2_header_handler
214 /* action linked to the marker */
215 OPJ_BOOL (*handler) ( opj_jp2_t *jp2,
216 OPJ_BYTE *p_header_data,
217 OPJ_UINT32 p_header_size,
218 opj_event_mgr_t * p_manager);
220 opj_jp2_header_handler_t;
223 typedef struct opj_jp2_img_header_writer_handler
225 /* action to perform */
226 OPJ_BYTE* (*handler) (opj_jp2_t *jp2, OPJ_UINT32 * p_data_size);
227 /* result of the action : data */
232 opj_jp2_img_header_writer_handler_t;
234 /** @name Exported functions */
236 /* ----------------------------------------------------------------------- */
239 Setup the decoder decoding parameters using user parameters.
240 Decoding parameters are returned in jp2->j2k->cp.
241 @param jp2 JP2 decompressor handle
242 @param parameters decompression parameters
244 void opj_jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters);
247 * Decode an image from a JPEG-2000 file stream
248 * @param jp2 JP2 decompressor handle
249 * @param p_stream FIXME DOC
250 * @param p_image FIXME DOC
251 * @param p_manager FIXME DOC
253 * @return Returns a decoded image if successful, returns NULL otherwise
255 OPJ_BOOL opj_jp2_decode(opj_jp2_t *jp2,
256 opj_stream_private_t *p_stream,
257 opj_image_t* p_image,
258 opj_event_mgr_t * p_manager);
261 * Setup the encoder parameters using the current image and using user parameters.
262 * Coding parameters are returned in jp2->j2k->cp.
264 * @param jp2 JP2 compressor handle
265 * @param parameters compression parameters
266 * @param image input filled image
267 * @param p_manager FIXME DOC
268 * @return OPJ_TRUE if successful, OPJ_FALSE otherwise
270 OPJ_BOOL opj_jp2_setup_encoder( opj_jp2_t *jp2,
271 opj_cparameters_t *parameters,
273 opj_event_mgr_t * p_manager);
276 Encode an image into a JPEG-2000 file stream
277 @param jp2 JP2 compressor handle
278 @param stream Output buffer stream
279 @param p_manager event manager
280 @return Returns true if successful, returns false otherwise
282 OPJ_BOOL opj_jp2_encode( opj_jp2_t *jp2,
283 opj_stream_private_t *stream,
284 opj_event_mgr_t * p_manager);
288 * Starts a compression scheme, i.e. validates the codec parameters, writes the header.
290 * @param jp2 the jpeg2000 file codec.
291 * @param stream the stream object.
292 * @param p_image FIXME DOC
293 * @param p_manager FIXME DOC
295 * @return true if the codec is valid.
297 OPJ_BOOL opj_jp2_start_compress(opj_jp2_t *jp2,
298 opj_stream_private_t *stream,
299 opj_image_t * p_image,
300 opj_event_mgr_t * p_manager);
304 * Ends the compression procedures and possibiliy add data to be read after the
307 OPJ_BOOL opj_jp2_end_compress( opj_jp2_t *jp2,
308 opj_stream_private_t *cio,
309 opj_event_mgr_t * p_manager);
311 /* ----------------------------------------------------------------------- */
314 * Ends the decompression procedures and possibiliy add data to be read after the
317 OPJ_BOOL opj_jp2_end_decompress(opj_jp2_t *jp2,
318 opj_stream_private_t *cio,
319 opj_event_mgr_t * p_manager);
322 * Reads a jpeg2000 file header structure.
324 * @param p_stream the stream to read data from.
325 * @param jp2 the jpeg2000 file header structure.
326 * @param p_image FIXME DOC
327 * @param p_manager the user event manager.
329 * @return true if the box is valid.
331 OPJ_BOOL opj_jp2_read_header( opj_stream_private_t *p_stream,
333 opj_image_t ** p_image,
334 opj_event_mgr_t * p_manager );
337 * Reads a tile header.
338 * @param p_jp2 the jpeg2000 codec.
339 * @param p_tile_index FIXME DOC
340 * @param p_data_size FIXME DOC
341 * @param p_tile_x0 FIXME DOC
342 * @param p_tile_y0 FIXME DOC
343 * @param p_tile_x1 FIXME DOC
344 * @param p_tile_y1 FIXME DOC
345 * @param p_nb_comps FIXME DOC
346 * @param p_go_on FIXME DOC
347 * @param p_stream the stream to write data to.
348 * @param p_manager the user event manager.
350 OPJ_BOOL opj_jp2_read_tile_header ( opj_jp2_t * p_jp2,
351 OPJ_UINT32 * p_tile_index,
352 OPJ_UINT32 * p_data_size,
353 OPJ_INT32 * p_tile_x0,
354 OPJ_INT32 * p_tile_y0,
355 OPJ_INT32 * p_tile_x1,
356 OPJ_INT32 * p_tile_y1,
357 OPJ_UINT32 * p_nb_comps,
359 opj_stream_private_t *p_stream,
360 opj_event_mgr_t * p_manager );
365 * @param p_jp2 the jpeg2000 codec.
366 * @param p_tile_index FIXME DOC
367 * @param p_data FIXME DOC
368 * @param p_data_size FIXME DOC
369 * @param p_stream the stream to write data to.
370 * @param p_manager the user event manager.
372 OPJ_BOOL opj_jp2_write_tile ( opj_jp2_t *p_jp2,
373 OPJ_UINT32 p_tile_index,
375 OPJ_UINT32 p_data_size,
376 opj_stream_private_t *p_stream,
377 opj_event_mgr_t * p_manager );
381 * @param p_jp2 the jpeg2000 codec.
382 * @param p_tile_index FIXME DOC
383 * @param p_data FIXME DOC
384 * @param p_data_size FIXME DOC
385 * @param p_stream the stream to write data to.
386 * @param p_manager the user event manager.
390 OPJ_BOOL opj_jp2_decode_tile ( opj_jp2_t * p_jp2,
391 OPJ_UINT32 p_tile_index,
393 OPJ_UINT32 p_data_size,
394 opj_stream_private_t *p_stream,
395 opj_event_mgr_t * p_manager );
398 * Creates a jpeg2000 file decompressor.
400 * @return an empty jpeg2000 file codec.
402 opj_jp2_t* opj_jp2_create (OPJ_BOOL p_is_decoder);
405 Destroy a JP2 decompressor handle
406 @param jp2 JP2 decompressor handle to destroy
408 void opj_jp2_destroy(opj_jp2_t *jp2);
412 * Sets the given area to be decoded. This function should be called right after opj_read_header and before any tile header reading.
414 * @param p_jp2 the jpeg2000 codec.
415 * @param p_image FIXME DOC
416 * @param p_start_x the left position of the rectangle to decode (in image coordinates).
417 * @param p_start_y the up position of the rectangle to decode (in image coordinates).
418 * @param p_end_x the right position of the rectangle to decode (in image coordinates).
419 * @param p_end_y the bottom position of the rectangle to decode (in image coordinates).
420 * @param p_manager the user event manager
422 * @return true if the area could be set.
424 OPJ_BOOL opj_jp2_set_decode_area( opj_jp2_t *p_jp2,
425 opj_image_t* p_image,
426 OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
427 OPJ_INT32 p_end_x, OPJ_INT32 p_end_y,
428 opj_event_mgr_t * p_manager );
433 OPJ_BOOL opj_jp2_get_tile( opj_jp2_t *p_jp2,
434 opj_stream_private_t *p_stream,
435 opj_image_t* p_image,
436 opj_event_mgr_t * p_manager,
437 OPJ_UINT32 tile_index );
443 OPJ_BOOL opj_jp2_set_decoded_resolution_factor(opj_jp2_t *p_jp2,
444 OPJ_UINT32 res_factor,
445 opj_event_mgr_t * p_manager);
448 /* TODO MSD: clean these 3 functions */
450 * Dump some elements from the JP2 decompression structure .
452 *@param p_jp2 the jp2 codec.
453 *@param flag flag to describe what elments are dump.
454 *@param out_stream output stream where dump the elements.
457 void jp2_dump (opj_jp2_t* p_jp2, OPJ_INT32 flag, FILE* out_stream);
460 * Get the codestream info from a JPEG2000 codec.
462 *@param p_jp2 jp2 codec.
464 *@return the codestream information extract from the jpg2000 codec
466 opj_codestream_info_v2_t* jp2_get_cstr_info(opj_jp2_t* p_jp2);
469 * Get the codestream index from a JPEG2000 codec.
471 *@param p_jp2 jp2 codec.
473 *@return the codestream index extract from the jpg2000 codec
475 opj_codestream_index_t* jp2_get_cstr_index(opj_jp2_t* p_jp2);