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jpc_enc.h
1/*
2 * Copyright (c) 1999-2000 Image Power, Inc. and the University of
3 * British Columbia.
4 * Copyright (c) 2001-2002 Michael David Adams.
5 * All rights reserved.
6 */
7
8/* __START_OF_JASPER_LICENSE__
9 *
10 * JasPer License Version 2.0
11 *
12 * Copyright (c) 2001-2006 Michael David Adams
13 * Copyright (c) 1999-2000 Image Power, Inc.
14 * Copyright (c) 1999-2000 The University of British Columbia
15 *
16 * All rights reserved.
17 *
18 * Permission is hereby granted, free of charge, to any person (the
19 * "User") obtaining a copy of this software and associated documentation
20 * files (the "Software"), to deal in the Software without restriction,
21 * including without limitation the rights to use, copy, modify, merge,
22 * publish, distribute, and/or sell copies of the Software, and to permit
23 * persons to whom the Software is furnished to do so, subject to the
24 * following conditions:
25 *
26 * 1. The above copyright notices and this permission notice (which
27 * includes the disclaimer below) shall be included in all copies or
28 * substantial portions of the Software.
29 *
30 * 2. The name of a copyright holder shall not be used to endorse or
31 * promote products derived from the Software without specific prior
32 * written permission.
33 *
34 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
35 * LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
36 * THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
37 * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
38 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
39 * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
40 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
41 * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
42 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
43 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
44 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
45 * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
46 * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
47 * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
48 * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
49 * PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
50 * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
51 * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
52 * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
53 * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
54 * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
55 * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
56 * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
57 * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
58 * RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
59 * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
60 *
61 * __END_OF_JASPER_LICENSE__
62 */
63
64/*
65 * $Id$
66 */
67
68#ifndef JPC_ENC_H
69#define JPC_ENC_H
70
71/******************************************************************************\
72* Includes.
73\******************************************************************************/
74
75#include "jasper/jas_image.h"
76#include "jasper/jas_seq.h"
77#include "jasper/jas_stream.h"
78
79#include "jpc_cod.h"
80#include "jpc_t1cod.h"
81#include "jpc_t2cod.h"
82#include "jpc_mqenc.h"
83#include "jpc_tagtree.h"
84#include "jpc_cs.h"
85#include "jpc_fix.h"
86#include "jpc_flt.h"
87#include "jpc_tsfb.h"
88
89/******************************************************************************\
90* Constants.
91\******************************************************************************/
92
93/* The number of bits used in various lookup tables. */
94#define JPC_NUMEXTRABITS JPC_NMSEDEC_FRACBITS
95
96/* An invalid R-D slope value. */
97#define JPC_BADRDSLOPE (-1)
98
99/******************************************************************************\
100* Coding parameters types.
101\******************************************************************************/
102
103/* Per-component coding paramters. */
104
105 typedef struct {
106
107 /* The horizontal sampling period. */
108 uint_fast8_t sampgrdstepx;
109
110 /* The vertical sampling period. */
111 uint_fast8_t sampgrdstepy;
112
113 /* The sample alignment horizontal offset. */
114 uint_fast8_t sampgrdsubstepx;
115
116 /* The sample alignment vertical offset. */
117 uint_fast8_t sampgrdsubstepy;
118
119 /* The precision of the samples. */
120 uint_fast8_t prec;
121
122 /* The signedness of the samples. */
123 bool sgnd;
124
125 /* The number of step sizes. */
126 uint_fast16_t numstepsizes;
127
128 /* The quantizer step sizes. */
129 uint_fast16_t stepsizes[JPC_MAXBANDS];
130
131} jpc_enc_ccp_t;
132
133/* Per-tile coding parameters. */
134
135 typedef struct {
136
137 /* The coding mode. */
138 bool intmode;
139
140 /* The coding style (i.e., SOP, EPH). */
141 uint_fast8_t csty;
142
143 /* The progression order. */
144 uint_fast8_t prg;
145
146 /* The multicomponent transform. */
147 uint_fast8_t mctid;
148
149 /* The number of layers. */
150 uint_fast16_t numlyrs;
151
152 /* The normalized bit rates associated with the various
153 intermediate layers. */
154 jpc_fix_t *ilyrrates;
155
156} jpc_enc_tcp_t;
157
158/* Per tile-component coding parameters. */
159
160 typedef struct {
161
162 /* The coding style (i.e., explicit precinct sizes). */
163 uint_fast8_t csty;
164
165 /* The maximum number of resolution levels allowed. */
166 uint_fast8_t maxrlvls;
167
168 /* The exponent for the nominal code block width. */
169 uint_fast16_t cblkwidthexpn;
170
171 /* The exponent for the nominal code block height. */
172 uint_fast16_t cblkheightexpn;
173
174 /* The code block style parameters (e.g., lazy, terminate all,
175 segmentation symbols, causal, reset probability models). */
176 uint_fast8_t cblksty;
177
178 /* The QMFB. */
179 uint_fast8_t qmfbid;
180
181 /* The precinct width values. */
182 uint_fast16_t prcwidthexpns[JPC_MAXRLVLS];
183
184 /* The precinct height values. */
185 uint_fast16_t prcheightexpns[JPC_MAXRLVLS];
186
187 /* The number of guard bits. */
188 uint_fast8_t numgbits;
189
190} jpc_enc_tccp_t;
191
192/* Coding parameters. */
193
194 typedef struct {
195
196 /* The debug level. */
197 int debug;
198
199 /* The horizontal offset from the origin of the reference grid to the
200 left edge of the image area. */
201 uint_fast32_t imgareatlx;
202
203 /* The vertical offset from the origin of the reference grid to the
204 top edge of the image area. */
205 uint_fast32_t imgareatly;
206
207 /* The horizontal offset from the origin of the reference grid to the
208 right edge of the image area (plus one). */
209 uint_fast32_t refgrdwidth;
210
211 /* The vertical offset from the origin of the reference grid to the
212 bottom edge of the image area (plus one). */
213 uint_fast32_t refgrdheight;
214
215 /* The horizontal offset from the origin of the tile grid to the
216 origin of the reference grid. */
217 uint_fast32_t tilegrdoffx;
218
219 /* The vertical offset from the origin of the tile grid to the
220 origin of the reference grid. */
221 uint_fast32_t tilegrdoffy;
222
223 /* The nominal tile width in units of the image reference grid. */
224 uint_fast32_t tilewidth;
225
226 /* The nominal tile height in units of the image reference grid. */
227 uint_fast32_t tileheight;
228
229 /* The number of tiles spanning the image area in the horizontal
230 direction. */
231 uint_fast32_t numhtiles;
232
233 /* The number of tiles spanning the image area in the vertical
234 direction. */
235 uint_fast32_t numvtiles;
236
237 /* The number of tiles. */
238 uint_fast32_t numtiles;
239
240 /* The number of components. */
241 uint_fast16_t numcmpts;
242
243 /* The per-component coding parameters. */
244 jpc_enc_ccp_t *ccps;
245
246 /* The per-tile coding parameters. */
247 jpc_enc_tcp_t tcp;
248
249 /* The per-tile-component coding parameters. */
250 jpc_enc_tccp_t tccp;
251
252 /* The target code stream length in bytes. */
253 uint_fast32_t totalsize;
254
255 /* The raw (i.e., uncompressed) size of the image in bytes. */
256 uint_fast32_t rawsize;
257
258} jpc_enc_cp_t;
259
260/******************************************************************************\
261* Encoder class.
262\******************************************************************************/
263
264/* Encoder per-coding-pass state information. */
265
266 typedef struct {
267
268 /* The starting offset for this pass. */
269 int start;
270
271 /* The ending offset for this pass. */
272 int end;
273
274 /* The type of data in this pass (i.e., MQ or raw). */
275 enum jpc_segtype type;
276
277 /* Flag indicating that this pass is terminated. */
278 int term;
279
280 /* The entropy coder state after coding this pass. */
281 jpc_mqencstate_t mqencstate;
282
283 /* The layer to which this pass has been assigned. */
284 unsigned lyrno;
285
286 /* The R-D slope for this pass. */
287 jpc_flt_t rdslope;
288
289 /* The weighted MSE reduction associated with this pass. */
290 jpc_flt_t wmsedec;
291
292 /* The cumulative weighted MSE reduction. */
293 jpc_flt_t cumwmsedec;
294
295 /* The normalized MSE reduction. */
296 long nmsedec;
297
298} jpc_enc_pass_t;
299
300/* Encoder per-code-block state information. */
301
302 typedef struct {
303
304 /* The number of passes. */
305 unsigned numpasses;
306
307 /* The per-pass information. */
308 jpc_enc_pass_t *passes;
309
310 /* The number of passes encoded so far. */
311 int numencpasses;
312
313 /* The number of insignificant MSBs. */
314 int numimsbs;
315
316 /* The number of bits used to encode pass data lengths. */
317 int numlenbits;
318
319 /* The byte stream for this code block. */
320 jas_stream_t *stream;
321
322 /* The entropy encoder. */
323 jpc_mqenc_t *mqenc;
324
325 /* The data for this code block. */
326 jas_matrix_t *data;
327
328 /* The state for this code block. */
329 jas_matrix_t *flags;
330
331 /* The number of bit planes required for this code block. */
332 int numbps;
333
334 /* The next pass to be encoded. */
335 jpc_enc_pass_t *curpass;
336
337 /* The per-code-block-group state information. */
338 struct jpc_enc_prc_s *prc;
339
340 /* The saved current pass. */
341 /* This is used by the rate control code. */
342 jpc_enc_pass_t *savedcurpass;
343
344 /* The saved length indicator size. */
345 /* This is used by the rate control code. */
346 int savednumlenbits;
347
348 /* The saved number of encoded passes. */
349 /* This is used by the rate control code. */
350 int savednumencpasses;
351
352} jpc_enc_cblk_t;
353
354/* Encoder per-code-block-group state information. */
355
356 typedef struct jpc_enc_prc_s {
357
358 /* The x-coordinate of the top-left corner of the precinct. */
359 uint_fast32_t tlx;
360
361 /* The y-coordinate of the top-left corner of the precinct. */
362 uint_fast32_t tly;
363
364 /* The x-coordinate of the bottom-right corner of the precinct
365 (plus one). */
366 uint_fast32_t brx;
367
368 /* The y-coordinate of the bottom-right corner of the precinct
369 (plus one). */
370 uint_fast32_t bry;
371
372 /* The number of code blocks spanning the precinct in the horizontal
373 direction. */
374 int numhcblks;
375
376 /* The number of code blocks spanning the precinct in the vertical
377 direction. */
378 int numvcblks;
379
380 /* The total number of code blocks. */
381 unsigned numcblks;
382
383 /* The per-code-block information. */
384 jpc_enc_cblk_t *cblks;
385
386 /* The inclusion tag tree. */
387 jpc_tagtree_t *incltree;
388
389 /* The insignifcant MSBs tag tree. */
390 jpc_tagtree_t *nlibtree;
391
392 /* The per-band information. */
393 struct jpc_enc_band_s *band;
394
395 /* The saved inclusion tag tree. */
396 /* This is used by rate control. */
397 jpc_tagtree_t *savincltree;
398
399 /* The saved leading-insignificant-bit-planes tag tree. */
400 /* This is used by rate control. */
401 jpc_tagtree_t *savnlibtree;
402
403} jpc_enc_prc_t;
404
405/* Encoder per-band state information. */
406
407 typedef struct jpc_enc_band_s {
408
409 /* The per precinct information. */
410 jpc_enc_prc_t *prcs;
411
412 /* The coefficient data for this band. */
413 jas_matrix_t *data;
414
415 /* The orientation of this band (i.e., LL, LH, HL, or HH). */
416 enum jpc_tsfb_orient orient;
417
418 /* The number of bit planes associated with this band. */
419 int numbps;
420
421 /* The quantizer step size. */
422 jpc_fix_t absstepsize;
423
424 /* The encoded quantizer step size. */
425 int stepsize;
426
427 /* The L2 norm of the synthesis basis functions associated with
428 this band. (The MCT is not considered in this value.) */
429 jpc_fix_t synweight;
430
431 /* The analysis gain for this band. */
432 int analgain;
433
434 /* The per-resolution-level information. */
435 struct jpc_enc_rlvl_s *rlvl;
436
437} jpc_enc_band_t;
438
439/* Encoder per-resolution-level state information. */
440
441 typedef struct jpc_enc_rlvl_s {
442
443 /* The x-coordinate of the top-left corner of the tile-component
444 at this resolution. */
445 uint_fast32_t tlx;
446
447 /* The y-coordinate of the top-left corner of the tile-component
448 at this resolution. */
449 uint_fast32_t tly;
450
451 /* The x-coordinate of the bottom-right corner of the tile-component
452 at this resolution (plus one). */
453 uint_fast32_t brx;
454
455 /* The y-coordinate of the bottom-right corner of the tile-component
456 at this resolution (plus one). */
457 uint_fast32_t bry;
458
459 /* The exponent value for the nominal precinct width measured
460 relative to the associated LL band. */
461 int prcwidthexpn;
462
463 /* The exponent value for the nominal precinct height measured
464 relative to the associated LL band. */
465 int prcheightexpn;
466
467 /* The number of precincts spanning the resolution level in the
468 horizontal direction. */
469 int numhprcs;
470
471 /* The number of precincts spanning the resolution level in the
472 vertical direction. */
473 int numvprcs;
474
475 /* The total number of precincts. */
476 unsigned numprcs;
477
478 /* The exponent value for the nominal code block group width.
479 This quantity is associated with the next lower resolution level
480 (assuming that there is one). */
481 unsigned cbgwidthexpn;
482
483 /* The exponent value for the nominal code block group height.
484 This quantity is associated with the next lower resolution level
485 (assuming that there is one). */
486 unsigned cbgheightexpn;
487
488 /* The exponent value for the code block width. */
489 uint_fast16_t cblkwidthexpn;
490
491 /* The exponent value for the code block height. */
492 uint_fast16_t cblkheightexpn;
493
494 /* The number of bands associated with this resolution level. */
495 unsigned numbands;
496
497 /* The per-band information. */
498 jpc_enc_band_t *bands;
499
500 /* The parent tile-component. */
501 struct jpc_enc_tcmpt_s *tcmpt;
502
503} jpc_enc_rlvl_t;
504
505/* Encoder per-tile-component state information. */
506
507 typedef struct jpc_enc_tcmpt_s {
508
509 /* The number of resolution levels. */
510 unsigned numrlvls;
511
512 /* The per-resolution-level information. */
513 jpc_enc_rlvl_t *rlvls;
514
515 /* The tile-component data. */
516 jas_matrix_t *data;
517
518 /* The QMFB. */
519 int qmfbid;
520
521 /* The number of bands. */
522 int numbands;
523
524 /* The TSFB. */
525 jpc_tsfb_t *tsfb;
526
527 /* The synthesis energy weight (for the MCT). */
528 jpc_fix_t synweight;
529
530 /* The precinct width exponents. */
531 int prcwidthexpns[JPC_MAXRLVLS];
532
533 /* The precinct height exponents. */
534 int prcheightexpns[JPC_MAXRLVLS];
535
536 /* The code block width exponent. */
537 int cblkwidthexpn;
538
539 /* The code block height exponent. */
540 int cblkheightexpn;
541
542 /* Coding style (i.e., explicit precinct sizes). */
543 int csty;
544
545 /* Code block style. */
546 int cblksty;
547
548 /* The number of quantizer step sizes. */
549 int numstepsizes;
550
551 /* The encoded quantizer step sizes. */
552 uint_fast16_t stepsizes[JPC_MAXBANDS];
553
554 /* The parent tile. */
555 struct jpc_enc_tile_s *tile;
556
557} jpc_enc_tcmpt_t;
558
559/* Encoder per-tile state information. */
560
561 typedef struct jpc_enc_tile_s {
562
563 /* The tile number. */
564 uint_fast32_t tileno;
565
566 /* The x-coordinate of the top-left corner of the tile measured with
567 respect to the reference grid. */
568 uint_fast32_t tlx;
569
570 /* The y-coordinate of the top-left corner of the tile measured with
571 respect to the reference grid. */
572 uint_fast32_t tly;
573
574 /* The x-coordinate of the bottom-right corner of the tile measured
575 with respect to the reference grid (plus one). */
576 uint_fast32_t brx;
577
578 /* The y-coordinate of the bottom-right corner of the tile measured
579 with respect to the reference grid (plus one). */
580 uint_fast32_t bry;
581
582 /* The coding style. */
583 uint_fast8_t csty;
584
585 /* The progression order. */
586 uint_fast8_t prg;
587
588 /* The number of layers. */
589 unsigned numlyrs;
590
591 /* The MCT to employ (if any). */
592 uint_fast8_t mctid;
593
594 /* The packet iterator (used to determine the order of packet
595 generation). */
596 jpc_pi_t *pi;
597
598 /* The coding mode (i.e., integer or real). */
599 bool intmode;
600
601 /* The number of bytes to allocate to the various layers. */
602 uint_fast32_t *lyrsizes;
603
604 /* The number of tile-components. */
605 unsigned numtcmpts;
606
607 /* The per tile-component information. */
608 jpc_enc_tcmpt_t *tcmpts;
609
610 /* The raw (i.e., uncompressed) size of this tile. */
611 uint_fast32_t rawsize;
612
613} jpc_enc_tile_t;
614
615/* Encoder class. */
616
617 typedef struct jpc_enc_s {
618
619 /* The image being encoded. */
620 jas_image_t *image;
621
622 /* The output stream. */
623 jas_stream_t *out;
624
625 /* The coding parameters. */
626 jpc_enc_cp_t *cp;
627
628 /* The tile currently being processed. */
629 jpc_enc_tile_t *curtile;
630
631 /* The code stream state. */
632 jpc_cstate_t *cstate;
633
634 /* The number of bytes output so far. */
635 uint_fast32_t len;
636
637 /* The number of bytes available for the main body of the code stream. */
638 /* This is used for rate allocation purposes. */
639 uint_fast32_t mainbodysize;
640
641 /* The marker segment currently being processed. */
642 /* This member is a convenience for making cleanup easier. */
643 jpc_ms_t *mrk;
644
645 /* The stream used to temporarily hold tile-part data. */
646 jas_stream_t *tmpstream;
647
648} jpc_enc_t;
649
650#endif
jas_image.h
JasPer Image Class.
jas_seq.h
Sequence/Matrix Library.
jas_stream.h
I/O Stream Class.
jas_image_t
Image class.
Definition: jas_image.h:215
jas_matrix_t
Matrix type.
Definition: jas_seq.h:117
jas_stream_t
I/O stream object.
Definition: jas_stream.h:213