2 * The copyright in this software is being made available under the 2-clauses
3 * BSD License, included below. This software may be subject to other third
4 * party and contributor rights, including patent rights, and no such rights
5 * are granted under this license.
7 * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
8 * Copyright (c) 2002-2014, Professor Benoit Macq
9 * Copyright (c) 2001-2003, David Janssens
10 * Copyright (c) 2002-2003, Yannick Verschueren
11 * Copyright (c) 2003-2007, Francois-Olivier Devaux
12 * Copyright (c) 2003-2014, Antonin Descampe
13 * Copyright (c) 2005, Herve Drolon, FreeImage Team
14 * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR
15 * Copyright (c) 2012, CS Systemes d'Information, France
16 * All rights reserved.
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions
21 * 1. Redistributions of source code must retain the above copyright
22 * notice, this list of conditions and the following disclaimer.
23 * 2. Redistributions in binary form must reproduce the above copyright
24 * notice, this list of conditions and the following disclaimer in the
25 * documentation and/or other materials provided with the distribution.
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
28 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
31 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
43 @brief Implementation of a tile coder/decoder (TCD)
45 The functions in TCD.C encode or decode each tile independently from
46 each other. The functions in TCD.C are used by other functions in J2K.C.
49 /** @defgroup TCD TCD - Implementation of a tile coder/decoder */
56 typedef struct opj_tcd_pass {
58 OPJ_FLOAT64 distortiondec;
60 OPJ_BITFIELD term : 1;
66 typedef struct opj_tcd_layer {
67 OPJ_UINT32 numpasses; /* Number of passes in the layer */
68 OPJ_UINT32 len; /* len of information */
69 OPJ_FLOAT64 disto; /* add for index (Cfr. Marcela) */
70 OPJ_BYTE *data; /* data */
76 typedef struct opj_tcd_cblk_enc {
77 OPJ_BYTE* data; /* Data */
78 opj_tcd_layer_t* layers; /* layer information */
79 opj_tcd_pass_t* passes; /* information about the passes */
81 y1; /* dimension of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
83 OPJ_UINT32 numlenbits;
84 OPJ_UINT32 data_size; /* Size of allocated data buffer */
86 numpasses; /* number of pass already done for the code-blocks */
87 OPJ_UINT32 numpassesinlayers; /* number of passes in the layer */
88 OPJ_UINT32 totalpasses; /* total number of passes */
92 /** Chunk of codestream data that is part of a code block */
93 typedef struct opj_tcd_seg_data_chunk {
94 /* Point to tilepart buffer. We don't make a copy !
95 So the tilepart buffer must be kept alive
96 as long as we need to decode the codeblocks */
98 OPJ_UINT32 len; /* Usable length of data */
99 } opj_tcd_seg_data_chunk_t;
101 /** Segment of a code-block.
102 * A segment represent a number of consecutive coding passes, without termination
103 * of MQC or RAW between them. */
104 typedef struct opj_tcd_seg {
105 OPJ_UINT32 len; /* Size of data related to this segment */
106 /* Number of passes decoded. Including those that we skip */
107 OPJ_UINT32 numpasses;
108 /* Number of passes actually to be decoded. To be used for code-block decoding */
109 OPJ_UINT32 real_num_passes;
110 /* Maximum number of passes for this segment */
111 OPJ_UINT32 maxpasses;
112 /* Number of new passes for current packed. Transitory value */
113 OPJ_UINT32 numnewpasses;
114 /* Codestream length for this segment for current packed. Transitory value */
118 /* Code-block for decoding */
119 typedef struct opj_tcd_cblk_dec {
120 opj_tcd_seg_t* segs; /* segments information */
121 opj_tcd_seg_data_chunk_t* chunks; /* Array of chunks */
122 /* position of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
123 OPJ_INT32 x0, y0, x1, y1;
125 /* number of bits for len, for the current packet. Transitory value */
126 OPJ_UINT32 numlenbits;
127 /* number of pass added to the code-blocks, for the current packet. Transitory value */
128 OPJ_UINT32 numnewpasses;
129 /* number of segments, including those of packet we skip */
131 /* number of segments, to be used for code block decoding */
132 OPJ_UINT32 real_num_segs;
133 OPJ_UINT32 m_current_max_segs; /* allocated number of segs[] items */
134 OPJ_UINT32 numchunks; /* Number of valid chunks items */
135 OPJ_UINT32 numchunksalloc; /* Number of chunks item allocated */
136 } opj_tcd_cblk_dec_t;
141 typedef struct opj_tcd_precinct {
142 OPJ_INT32 x0, y0, x1,
143 y1; /* dimension of the precinct : left upper corner (x0, y0) right low corner (x1,y1) */
144 OPJ_UINT32 cw, ch; /* number of precinct in width and height */
145 union { /* code-blocks information */
146 opj_tcd_cblk_enc_t* enc;
147 opj_tcd_cblk_dec_t* dec;
150 OPJ_UINT32 block_size; /* size taken by cblks (in bytes) */
151 opj_tgt_tree_t *incltree; /* inclusion tree */
152 opj_tgt_tree_t *imsbtree; /* IMSB tree */
153 } opj_tcd_precinct_t;
158 typedef struct opj_tcd_band {
159 OPJ_INT32 x0, y0, x1,
160 y1; /* dimension of the subband : left upper corner (x0, y0) right low corner (x1,y1) */
162 opj_tcd_precinct_t *precincts; /* precinct information */
163 OPJ_UINT32 precincts_data_size; /* size of data taken by precincts */
165 OPJ_FLOAT32 stepsize;
171 typedef struct opj_tcd_resolution {
172 OPJ_INT32 x0, y0, x1,
173 y1; /* dimension of the resolution level : left upper corner (x0, y0) right low corner (x1,y1) */
175 OPJ_UINT32 numbands; /* number sub-band for the resolution level */
176 opj_tcd_band_t bands[3]; /* subband information */
177 } opj_tcd_resolution_t;
182 typedef struct opj_tcd_tilecomp {
183 OPJ_INT32 x0, y0, x1,
184 y1; /* dimension of component : left upper corner (x0, y0) right low corner (x1,y1) */
185 OPJ_UINT32 numresolutions; /* number of resolutions level */
187 minimum_num_resolutions; /* number of resolutions level to decode (at max)*/
188 opj_tcd_resolution_t *resolutions; /* resolutions information */
190 resolutions_size; /* size of data for resolutions (in bytes) */
191 OPJ_INT32 *data; /* data of the component */
192 OPJ_BOOL ownsData; /* if true, then need to free after usage, otherwise do not free */
194 data_size_needed; /* we may either need to allocate this amount of data, or re-use image data and ignore this value */
195 OPJ_UINT32 data_size; /* size of the data of the component */
196 OPJ_INT32 numpix; /* add fixed_quality */
197 } opj_tcd_tilecomp_t;
203 typedef struct opj_tcd_tile {
204 OPJ_INT32 x0, y0, x1,
205 y1; /* dimension of the tile : left upper corner (x0, y0) right low corner (x1,y1) */
206 OPJ_UINT32 numcomps; /* number of components in tile */
207 opj_tcd_tilecomp_t *comps; /* Components information */
208 OPJ_INT32 numpix; /* add fixed_quality */
209 OPJ_FLOAT64 distotile; /* add fixed_quality */
210 OPJ_FLOAT64 distolayer[100]; /* add fixed_quality */
211 OPJ_UINT32 packno; /* packet number */
217 typedef struct opj_tcd_image {
218 opj_tcd_tile_t *tiles; /* Tiles information */
226 typedef struct opj_tcd {
227 /** Position of the tilepart flag in Progression order*/
229 /** Tile part number*/
231 /** Current tile part number*/
232 OPJ_UINT32 cur_tp_num;
233 /** Total number of tileparts of the current tile*/
234 OPJ_UINT32 cur_totnum_tp;
235 /** Current Packet iterator number */
237 /** info on each image tile */
238 opj_tcd_image_t *tcd_image;
241 /** coding parameters */
243 /** coding/decoding parameters common to all tiles */
245 /** current encoded/decoded tile */
246 OPJ_UINT32 tcd_tileno;
247 /** tell if the tcd is a decoder. */
248 OPJ_BITFIELD m_is_decoder : 1;
250 opj_thread_pool_t* thread_pool;
253 /** @name Exported functions */
255 /* ----------------------------------------------------------------------- */
258 Dump the content of a tcd structure
260 /*void tcd_dump(FILE *fd, opj_tcd_t *tcd, opj_tcd_image_t *img);*/ /* TODO MSD shoul use the new v2 structures */
263 Create a new TCD handle
264 @param p_is_decoder FIXME DOC
265 @return Returns a new TCD handle if successful returns NULL otherwise
267 opj_tcd_t* opj_tcd_create(OPJ_BOOL p_is_decoder);
270 Destroy a previously created TCD handle
271 @param tcd TCD handle to destroy
273 void opj_tcd_destroy(opj_tcd_t *tcd);
276 * Initialize the tile coder and may reuse some memory.
277 * @param p_tcd TCD handle.
278 * @param p_image raw image.
279 * @param p_cp coding parameters.
280 * @param p_tp thread pool
282 * @return true if the encoding values could be set (false otherwise).
284 OPJ_BOOL opj_tcd_init(opj_tcd_t *p_tcd,
285 opj_image_t * p_image,
287 opj_thread_pool_t* p_tp);
290 * Allocates memory for decoding a specific tile.
292 * @param p_tcd the tile decoder.
293 * @param p_tile_no the index of the tile received in sequence. This not necessarily lead to the
294 * tile at index p_tile_no.
295 * @param p_manager the event manager.
297 * @return true if the remaining data is sufficient.
299 OPJ_BOOL opj_tcd_init_decode_tile(opj_tcd_t *p_tcd, OPJ_UINT32 p_tile_no,
300 opj_event_mgr_t* p_manager);
302 void opj_tcd_makelayer_fixed(opj_tcd_t *tcd, OPJ_UINT32 layno,
305 void opj_tcd_rateallocate_fixed(opj_tcd_t *tcd);
307 void opj_tcd_makelayer(opj_tcd_t *tcd,
312 OPJ_BOOL opj_tcd_rateallocate(opj_tcd_t *tcd,
314 OPJ_UINT32 * p_data_written,
316 opj_codestream_info_t *cstr_info);
319 * Gets the maximum tile size that will be taken by the tile once decoded.
321 OPJ_UINT32 opj_tcd_get_decoded_tile_size(opj_tcd_t *p_tcd);
324 * Encodes a tile from the raw image into the given buffer.
325 * @param p_tcd Tile Coder handle
326 * @param p_tile_no Index of the tile to encode.
327 * @param p_dest Destination buffer
328 * @param p_data_written pointer to an int that is incremented by the number of bytes really written on p_dest
329 * @param p_len Maximum length of the destination buffer
330 * @param p_cstr_info Codestream information structure
331 * @return true if the coding is successful.
333 OPJ_BOOL opj_tcd_encode_tile(opj_tcd_t *p_tcd,
334 OPJ_UINT32 p_tile_no,
336 OPJ_UINT32 * p_data_written,
338 struct opj_codestream_info *p_cstr_info);
342 Decode a tile from a buffer into a raw image
343 @param tcd TCD handle
344 @param src Source buffer
345 @param len Length of source buffer
346 @param tileno Number that identifies one of the tiles to be decoded
347 @param cstr_info FIXME DOC
348 @param manager the event manager.
350 OPJ_BOOL opj_tcd_decode_tile(opj_tcd_t *tcd,
354 opj_codestream_index_t *cstr_info,
355 opj_event_mgr_t *manager);
359 * Copies tile data from the system onto the given memory block.
361 OPJ_BOOL opj_tcd_update_tile_data(opj_tcd_t *p_tcd,
363 OPJ_UINT32 p_dest_length);
368 OPJ_UINT32 opj_tcd_get_encoded_tile_size(opj_tcd_t *p_tcd);
371 * Initialize the tile coder and may reuse some meory.
373 * @param p_tcd TCD handle.
374 * @param p_tile_no current tile index to encode.
375 * @param p_manager the event manager.
377 * @return true if the encoding values could be set (false otherwise).
379 OPJ_BOOL opj_tcd_init_encode_tile(opj_tcd_t *p_tcd,
380 OPJ_UINT32 p_tile_no, opj_event_mgr_t* p_manager);
383 * Copies tile data from the given memory block onto the system.
385 OPJ_BOOL opj_tcd_copy_tile_data(opj_tcd_t *p_tcd,
387 OPJ_UINT32 p_src_length);
390 * Allocates tile component data
394 OPJ_BOOL opj_alloc_tile_component_data(opj_tcd_tilecomp_t *l_tilec);
396 /** Returns whether a sub-band is empty (i.e. whether it has a null area)
397 * @param band Sub-band handle.
398 * @return OPJ_TRUE whether the sub-band is empty.
400 OPJ_BOOL opj_tcd_is_band_empty(opj_tcd_band_t* band);
402 /** Reinitialize a segment */
403 void opj_tcd_reinit_segment(opj_tcd_seg_t* seg);
405 /* ----------------------------------------------------------------------- */
410 #endif /* OPJ_TCD_H */