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
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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35 @brief Implementation of a tile coder/decoder (TCD)
37 The functions in TCD.C encode or decode each tile independently from
38 each other. The functions in TCD.C are used by other functions in J2K.C.
41 /** @defgroup TCD TCD - Implementation of a tile coder/decoder */
47 /*typedef struct opj_tcd_seg { */
48 /* unsigned char** data; */
53 /* int numnewpasses; */
60 typedef struct opj_tcd_seg {
64 OPJ_UINT32 real_num_passes;
67 OPJ_UINT32 numnewpasses;
74 typedef struct opj_tcd_pass {
80 typedef struct opj_tcd_pass_v2 {
82 OPJ_FLOAT64 distortiondec;
90 typedef struct opj_tcd_layer {
91 OPJ_UINT32 numpasses; /* Number of passes in the layer */
92 OPJ_UINT32 len; /* len of information */
93 OPJ_FLOAT64 disto; /* add for index (Cfr. Marcela) */
94 OPJ_BYTE *data; /* data */
100 typedef struct opj_tcd_cblk_enc {
101 unsigned char* data; /* Data */
102 opj_tcd_layer_t* layers; /* layer information */
103 opj_tcd_pass_t* passes; /* information about the passes */
104 int x0, y0, x1, y1; /* dimension of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
107 int numpasses; /* number of pass already done for the code-blocks */
108 int numpassesinlayers; /* number of passes in the layer */
109 int totalpasses; /* total number of passes */
110 } opj_tcd_cblk_enc_t;
115 typedef struct opj_tcd_cblk_enc_v2 {
116 OPJ_BYTE* data; /* Data */
117 opj_tcd_layer_t* layers; /* layer information */
118 opj_tcd_pass_v2_t* passes; /* information about the passes */
119 OPJ_INT32 x0, y0, x1, y1; /* dimension of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
121 OPJ_UINT32 numlenbits;
122 OPJ_UINT32 numpasses; /* number of pass already done for the code-blocks */
123 OPJ_UINT32 numpassesinlayers; /* number of passes in the layer */
124 OPJ_UINT32 totalpasses; /* total number of passes */
125 } opj_tcd_cblk_enc_v2_t;
127 typedef struct opj_tcd_cblk_dec {
128 unsigned char* data; /* Data */
129 opj_tcd_seg_t* segs; /* segments information */
130 int x0, y0, x1, y1; /* dimension of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
133 int len; /* length */
134 int numnewpasses; /* number of pass added to the code-blocks */
135 int numsegs; /* number of segments */
136 } opj_tcd_cblk_dec_t;
139 typedef struct opj_tcd_cblk_dec_v2 {
140 OPJ_BYTE * data; /* Data */
141 opj_tcd_seg_t* segs; /* segments information */
142 OPJ_INT32 x0, y0, x1, y1; /* dimension of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
144 OPJ_UINT32 numlenbits;
145 OPJ_UINT32 len; /* length */
146 OPJ_UINT32 numnewpasses; /* number of pass added to the code-blocks */
147 OPJ_UINT32 numsegs; /* number of segments */
148 OPJ_UINT32 real_num_segs;
149 OPJ_UINT32 m_current_max_segs;
150 } opj_tcd_cblk_dec_v2_t;
155 typedef struct opj_tcd_precinct {
156 int x0, y0, x1, y1; /* dimension of the precinct : left upper corner (x0, y0) right low corner (x1,y1) */
157 int cw, ch; /* number of precinct in width and height */
158 union{ /* code-blocks information */
159 opj_tcd_cblk_enc_t* enc;
160 opj_tcd_cblk_dec_t* dec;
162 opj_tgt_tree_t *incltree; /* inclusion tree */
163 opj_tgt_tree_t *imsbtree; /* IMSB tree */
164 } opj_tcd_precinct_t;
167 typedef struct opj_tcd_precinct_v2 {
168 OPJ_INT32 x0, y0, x1, y1; /* dimension of the precinct : left upper corner (x0, y0) right low corner (x1,y1) */
169 OPJ_UINT32 cw, ch; /* number of precinct in width and height */
170 union{ /* code-blocks information */
171 opj_tcd_cblk_enc_v2_t* enc;
172 opj_tcd_cblk_dec_v2_t* dec;
174 OPJ_UINT32 block_size; /* size taken by cblks (in bytes) */
175 opj_tgt_tree_t *incltree; /* inclusion tree */
176 opj_tgt_tree_t *imsbtree; /* IMSB tree */
177 } opj_tcd_precinct_v2_t;
182 typedef struct opj_tcd_band {
183 int x0, y0, x1, y1; /* dimension of the subband : left upper corner (x0, y0) right low corner (x1,y1) */
185 opj_tcd_precinct_t *precincts; /* precinct information */
190 typedef struct opj_tcd_band_v2 {
191 OPJ_INT32 x0, y0, x1, y1; /* dimension of the subband : left upper corner (x0, y0) right low corner (x1,y1) */
193 opj_tcd_precinct_v2_t *precincts; /* precinct information */
194 OPJ_UINT32 precincts_data_size; /* size of data taken by precincts */
196 OPJ_FLOAT32 stepsize;
202 typedef struct opj_tcd_resolution {
203 int x0, y0, x1, y1; /* dimension of the resolution level : left upper corner (x0, y0) right low corner (x1,y1) */
205 int numbands; /* number sub-band for the resolution level */
206 opj_tcd_band_t bands[3]; /* subband information */
207 } opj_tcd_resolution_t;
209 typedef struct opj_tcd_resolution_v2 {
210 OPJ_INT32 x0, y0, x1, y1; /* dimension of the resolution level : left upper corner (x0, y0) right low corner (x1,y1) */
212 OPJ_UINT32 numbands; /* number sub-band for the resolution level */
213 opj_tcd_band_v2_t bands[3]; /* subband information */
214 } opj_tcd_resolution_v2_t;
219 typedef struct opj_tcd_tilecomp {
220 int x0, y0, x1, y1; /* dimension of component : left upper corner (x0, y0) right low corner (x1,y1) */
221 int numresolutions; /* number of resolutions level */
222 opj_tcd_resolution_t *resolutions; /* resolutions information */
223 int *data; /* data of the component */
224 int numpix; /* add fixed_quality */
225 } opj_tcd_tilecomp_t;
227 typedef struct opj_tcd_tilecomp_v2
229 OPJ_INT32 x0, y0, x1, y1; /* dimension of component : left upper corner (x0, y0) right low corner (x1,y1) */
230 OPJ_UINT32 numresolutions; /* number of resolutions level */
231 OPJ_UINT32 minimum_num_resolutions; /* number of resolutions level to decode (at max)*/
232 opj_tcd_resolution_v2_t *resolutions; /* resolutions information */
233 OPJ_UINT32 resolutions_size; /* size of data for resolutions (in bytes) */
234 OPJ_INT32 *data; /* data of the component */
235 OPJ_UINT32 data_size; /* size of the data of the component */
236 OPJ_INT32 numpix; /* add fixed_quality */
237 } opj_tcd_tilecomp_v2_t;
243 typedef struct opj_tcd_tile {
244 int x0, y0, x1, y1; /* dimension of the tile : left upper corner (x0, y0) right low corner (x1,y1) */
245 int numcomps; /* number of components in tile */
246 opj_tcd_tilecomp_t *comps; /* Components information */
247 int numpix; /* add fixed_quality */
248 double distotile; /* add fixed_quality */
249 double distolayer[100]; /* add fixed_quality */
254 typedef struct opj_tcd_tile_v2 {
255 OPJ_INT32 x0, y0, x1, y1; /* dimension of the tile : left upper corner (x0, y0) right low corner (x1,y1) */
256 OPJ_UINT32 numcomps; /* number of components in tile */
257 opj_tcd_tilecomp_v2_t *comps; /* Components information */
258 OPJ_INT32 numpix; /* add fixed_quality */
259 OPJ_FLOAT64 distotile; /* add fixed_quality */
260 OPJ_FLOAT64 distolayer[100]; /* add fixed_quality */
268 typedef struct opj_tcd_image {
269 int tw, th; /* number of tiles in width and height */
270 opj_tcd_tile_t *tiles; /* Tiles information */
273 typedef struct opj_tcd_image_v2
275 opj_tcd_tile_v2_t *tiles; /* Tiles information */
282 typedef struct opj_tcd {
283 /** Position of the tilepart flag in Progression order*/
285 /** Tile part number*/
287 /** Current tile part number*/
289 /** Total number of tileparts of the current tile*/
291 /** Current Packet iterator number */
294 opj_common_ptr cinfo;
296 /** info on each image tile */
297 opj_tcd_image_t *tcd_image;
300 /** coding parameters */
302 /** pointer to the current encoded/decoded tile */
303 opj_tcd_tile_t *tcd_tile;
304 /** coding/decoding parameters common to all tiles */
306 /** current encoded/decoded tile */
308 /** Time taken to encode a tile*/
309 double encoding_time;
319 typedef struct opj_tcd_v2
321 /** Position of the tilepart flag in Progression order*/
323 /** Tile part number*/
325 /** Current tile part number*/
326 OPJ_UINT32 cur_tp_num;
327 /** Total number of tileparts of the current tile*/
328 OPJ_UINT32 cur_totnum_tp;
329 /** Current Packet iterator number */
331 /** info on each image tile */
332 opj_tcd_image_v2_t *tcd_image;
335 /** coding parameters */
336 struct opj_cp_v2 *cp;
337 /** coding/decoding parameters common to all tiles */
338 struct opj_tcp_v2 *tcp;
339 /** current encoded/decoded tile */
340 OPJ_UINT32 tcd_tileno;
341 /** tell if the tcd is a decoder. */
342 OPJ_UINT32 m_is_decoder : 1;
345 /** @name Exported functions */
347 /* ----------------------------------------------------------------------- */
350 Dump the content of a tcd structure
352 void tcd_dump(FILE *fd, opj_tcd_t *tcd, opj_tcd_image_t *img);
354 Create a new TCD handle
355 @param cinfo Codec context info
356 @return Returns a new TCD handle if successful returns NULL otherwise
358 opj_tcd_t* tcd_create(opj_common_ptr cinfo);
361 Create a new TCD handle
363 @return Returns a new TCD handle if successful returns NULL otherwise
365 opj_tcd_v2_t* tcd_create_v2(opj_bool p_is_decoder);
368 Destroy a previously created TCD handle
369 @param tcd TCD handle to destroy
371 void tcd_destroy_v2(opj_tcd_v2_t *tcd);
374 * Initialize the tile coder and may reuse some memory.
375 * @param p_tcd TCD handle.
376 * @param p_image raw image.
377 * @param p_cp coding parameters.
379 * @return true if the encoding values could be set (false otherwise).
381 opj_bool tcd_init_v2( opj_tcd_v2_t *p_tcd,
382 opj_image_t * p_image,
387 * Allocates memory for decoding a specific tile.
389 * @param p_tcd the tile decoder.
390 * @param p_tile_no the index of the tile received in sequence. This not necessarily lead to the
391 * tile at index p_tile_no.
393 * @return true if the remaining data is sufficient.
395 opj_bool tcd_init_decode_tile(
401 Destroy a previously created TCD handle
402 @param tcd TCD handle to destroy
404 void tcd_destroy(opj_tcd_t *tcd);
406 Initialize the tile coder (allocate the memory)
407 @param tcd TCD handle
408 @param image Raw image
409 @param cp Coding parameters
410 @param curtileno Number that identifies the tile that will be encoded
412 void tcd_malloc_encode(opj_tcd_t *tcd, opj_image_t * image, opj_cp_t * cp, int curtileno);
414 Free the memory allocated for encoding
415 @param tcd TCD handle
417 void tcd_free_encode(opj_tcd_t *tcd);
419 Initialize the tile coder (reuses the memory allocated by tcd_malloc_encode)
420 @param tcd TCD handle
421 @param image Raw image
422 @param cp Coding parameters
423 @param curtileno Number that identifies the tile that will be encoded
425 void tcd_init_encode(opj_tcd_t *tcd, opj_image_t * image, opj_cp_t * cp, int curtileno);
427 Initialize the tile decoder
428 @param tcd TCD handle
429 @param image Raw image
430 @param cp Coding parameters
432 void tcd_malloc_decode(opj_tcd_t *tcd, opj_image_t * image, opj_cp_t * cp);
433 void tcd_malloc_decode_tile(opj_tcd_t *tcd, opj_image_t * image, opj_cp_t * cp, int tileno, opj_codestream_info_t *cstr_info);
434 void tcd_makelayer_fixed(opj_tcd_t *tcd, int layno, int final);
435 void tcd_rateallocate_fixed(opj_tcd_t *tcd);
436 void tcd_makelayer(opj_tcd_t *tcd, int layno, double thresh, int final);
437 opj_bool tcd_rateallocate(opj_tcd_t *tcd, unsigned char *dest, int len, opj_codestream_info_t *cstr_info);
439 Encode a tile from the raw image into a buffer
440 @param tcd TCD handle
441 @param tileno Number that identifies one of the tiles to be encoded
442 @param dest Destination buffer
443 @param len Length of destination buffer
444 @param cstr_info Codestream information structure
447 int tcd_encode_tile(opj_tcd_t *tcd, int tileno, unsigned char *dest, int len, opj_codestream_info_t *cstr_info);
449 Decode a tile from a buffer into a raw image
450 @param tcd TCD handle
451 @param src Source buffer
452 @param len Length of source buffer
453 @param tileno Number that identifies one of the tiles to be decoded
454 @param cstr_info Codestream information structure
456 opj_bool tcd_decode_tile(opj_tcd_t *tcd, unsigned char *src, int len, int tileno, opj_codestream_info_t *cstr_info);
458 Free the memory allocated for decoding
459 @param tcd TCD handle
461 void tcd_free_decode(opj_tcd_t *tcd);
462 void tcd_free_decode_tile(opj_tcd_t *tcd, int tileno);
466 * Gets the maximum tile size that will be taken by the tile once decoded.
468 OPJ_UINT32 tcd_get_decoded_tile_size (
473 Decode a tile from a buffer into a raw image
474 @param tcd TCD handle
475 @param src Source buffer
476 @param len Length of source buffer
477 @param tileno Number that identifies one of the tiles to be decoded
479 opj_bool tcd_decode_tile_v2(opj_tcd_v2_t *tcd,
483 opj_codestream_index_t *cstr_info);
487 * Copies tile data from the system onto the given memory block.
489 opj_bool tcd_update_tile_data (
492 OPJ_UINT32 p_dest_length
495 /* ----------------------------------------------------------------------- */