Line data Source code
1 : /*
2 : * JPEG2000 image encoder
3 : * Copyright (c) 2007 Kamil Nowosad
4 : *
5 : * This file is part of FFmpeg.
6 : *
7 : * FFmpeg is free software; you can redistribute it and/or
8 : * modify it under the terms of the GNU Lesser General Public
9 : * License as published by the Free Software Foundation; either
10 : * version 2.1 of the License, or (at your option) any later version.
11 : *
12 : * FFmpeg is distributed in the hope that it will be useful,
13 : * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 : * Lesser General Public License for more details.
16 : *
17 : * You should have received a copy of the GNU Lesser General Public
18 : * License along with FFmpeg; if not, write to the Free Software
19 : * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 : *
21 : * **********************************************************************************************************************
22 : *
23 : *
24 : *
25 : * This source code incorporates work covered by the following copyright and
26 : * permission notice:
27 : *
28 : * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
29 : * Copyright (c) 2002-2007, Professor Benoit Macq
30 : * Copyright (c) 2001-2003, David Janssens
31 : * Copyright (c) 2002-2003, Yannick Verschueren
32 : * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
33 : * Copyright (c) 2005, Herve Drolon, FreeImage Team
34 : * Copyright (c) 2007, Callum Lerwick <seg@haxxed.com>
35 : * All rights reserved.
36 : *
37 : * Redistribution and use in source and binary forms, with or without
38 : * modification, are permitted provided that the following conditions
39 : * are met:
40 : * 1. Redistributions of source code must retain the above copyright
41 : * notice, this list of conditions and the following disclaimer.
42 : * 2. Redistributions in binary form must reproduce the above copyright
43 : * notice, this list of conditions and the following disclaimer in the
44 : * documentation and/or other materials provided with the distribution.
45 : *
46 : * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
47 : * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
48 : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
49 : * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
50 : * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
51 : * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
52 : * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
53 : * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
54 : * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
55 : * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
56 : * POSSIBILITY OF SUCH DAMAGE.
57 : */
58 :
59 :
60 : /**
61 : * JPEG2000 image encoder
62 : * @file
63 : * @author Kamil Nowosad
64 : */
65 :
66 : #include <float.h>
67 : #include "avcodec.h"
68 : #include "internal.h"
69 : #include "bytestream.h"
70 : #include "jpeg2000.h"
71 : #include "libavutil/common.h"
72 : #include "libavutil/pixdesc.h"
73 : #include "libavutil/opt.h"
74 :
75 : #define NMSEDEC_BITS 7
76 : #define NMSEDEC_FRACBITS (NMSEDEC_BITS-1)
77 : #define WMSEDEC_SHIFT 13 ///< must be >= 13
78 : #define LAMBDA_SCALE (100000000LL << (WMSEDEC_SHIFT - 13))
79 :
80 : #define CODEC_JP2 1
81 : #define CODEC_J2K 0
82 :
83 : static int lut_nmsedec_ref [1<<NMSEDEC_BITS],
84 : lut_nmsedec_ref0[1<<NMSEDEC_BITS],
85 : lut_nmsedec_sig [1<<NMSEDEC_BITS],
86 : lut_nmsedec_sig0[1<<NMSEDEC_BITS];
87 :
88 : static const int dwt_norms[2][4][10] = { // [dwt_type][band][rlevel] (multiplied by 10000)
89 : {{10000, 19650, 41770, 84030, 169000, 338400, 676900, 1353000, 2706000, 5409000},
90 : {20220, 39890, 83550, 170400, 342700, 686300, 1373000, 2746000, 5490000},
91 : {20220, 39890, 83550, 170400, 342700, 686300, 1373000, 2746000, 5490000},
92 : {20800, 38650, 83070, 171800, 347100, 695900, 1393000, 2786000, 5572000}},
93 :
94 : {{10000, 15000, 27500, 53750, 106800, 213400, 426700, 853300, 1707000, 3413000},
95 : {10380, 15920, 29190, 57030, 113300, 226400, 452500, 904800, 1809000},
96 : {10380, 15920, 29190, 57030, 113300, 226400, 452500, 904800, 1809000},
97 : { 7186, 9218, 15860, 30430, 60190, 120100, 240000, 479700, 959300}}
98 : };
99 :
100 : typedef struct {
101 : Jpeg2000Component *comp;
102 : } Jpeg2000Tile;
103 :
104 : typedef struct {
105 : AVClass *class;
106 : AVCodecContext *avctx;
107 : const AVFrame *picture;
108 :
109 : int width, height; ///< image width and height
110 : uint8_t cbps[4]; ///< bits per sample in particular components
111 : int chroma_shift[2];
112 : uint8_t planar;
113 : int ncomponents;
114 : int tile_width, tile_height; ///< tile size
115 : int numXtiles, numYtiles;
116 :
117 : uint8_t *buf_start;
118 : uint8_t *buf;
119 : uint8_t *buf_end;
120 : int bit_index;
121 :
122 : int64_t lambda;
123 :
124 : Jpeg2000CodingStyle codsty;
125 : Jpeg2000QuantStyle qntsty;
126 :
127 : Jpeg2000Tile *tile;
128 :
129 : int format;
130 : int pred;
131 : } Jpeg2000EncoderContext;
132 :
133 :
134 : /* debug */
135 : #if 0
136 : #undef ifprintf
137 : #undef printf
138 :
139 : static void nspaces(FILE *fd, int n)
140 : {
141 : while(n--) putc(' ', fd);
142 : }
143 :
144 : static void printcomp(Jpeg2000Component *comp)
145 : {
146 : int i;
147 : for (i = 0; i < comp->y1 - comp->y0; i++)
148 : ff_jpeg2000_printv(comp->i_data + i * (comp->x1 - comp->x0), comp->x1 - comp->x0);
149 : }
150 :
151 : static void dump(Jpeg2000EncoderContext *s, FILE *fd)
152 : {
153 : int tileno, compno, reslevelno, bandno, precno;
154 : fprintf(fd, "XSiz = %d, YSiz = %d, tile_width = %d, tile_height = %d\n"
155 : "numXtiles = %d, numYtiles = %d, ncomponents = %d\n"
156 : "tiles:\n",
157 : s->width, s->height, s->tile_width, s->tile_height,
158 : s->numXtiles, s->numYtiles, s->ncomponents);
159 : for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
160 : Jpeg2000Tile *tile = s->tile + tileno;
161 : nspaces(fd, 2);
162 : fprintf(fd, "tile %d:\n", tileno);
163 : for(compno = 0; compno < s->ncomponents; compno++){
164 : Jpeg2000Component *comp = tile->comp + compno;
165 : nspaces(fd, 4);
166 : fprintf(fd, "component %d:\n", compno);
167 : nspaces(fd, 4);
168 : fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d\n",
169 : comp->x0, comp->x1, comp->y0, comp->y1);
170 : for(reslevelno = 0; reslevelno < s->nreslevels; reslevelno++){
171 : Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
172 : nspaces(fd, 6);
173 : fprintf(fd, "reslevel %d:\n", reslevelno);
174 : nspaces(fd, 6);
175 : fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d, nbands = %d\n",
176 : reslevel->x0, reslevel->x1, reslevel->y0,
177 : reslevel->y1, reslevel->nbands);
178 : for(bandno = 0; bandno < reslevel->nbands; bandno++){
179 : Jpeg2000Band *band = reslevel->band + bandno;
180 : nspaces(fd, 8);
181 : fprintf(fd, "band %d:\n", bandno);
182 : nspaces(fd, 8);
183 : fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d,"
184 : "codeblock_width = %d, codeblock_height = %d cblknx = %d cblkny = %d\n",
185 : band->x0, band->x1,
186 : band->y0, band->y1,
187 : band->codeblock_width, band->codeblock_height,
188 : band->cblknx, band->cblkny);
189 : for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
190 : Jpeg2000Prec *prec = band->prec + precno;
191 : nspaces(fd, 10);
192 : fprintf(fd, "prec %d:\n", precno);
193 : nspaces(fd, 10);
194 : fprintf(fd, "xi0 = %d, xi1 = %d, yi0 = %d, yi1 = %d\n",
195 : prec->xi0, prec->xi1, prec->yi0, prec->yi1);
196 : }
197 : }
198 : }
199 : }
200 : }
201 : }
202 : #endif
203 :
204 : /* bitstream routines */
205 :
206 : /** put n times val bit */
207 7048069 : static void put_bits(Jpeg2000EncoderContext *s, int val, int n) // TODO: optimize
208 : {
209 20922202 : while (n-- > 0){
210 6826064 : if (s->bit_index == 8)
211 : {
212 837227 : s->bit_index = *s->buf == 0xff;
213 837227 : *(++s->buf) = 0;
214 : }
215 6826064 : *s->buf |= val << (7 - s->bit_index++);
216 : }
217 7048069 : }
218 :
219 : /** put n least significant bits of a number num */
220 691538 : static void put_num(Jpeg2000EncoderContext *s, int num, int n)
221 : {
222 5663808 : while(--n >= 0)
223 4280732 : put_bits(s, (num >> n) & 1, 1);
224 691538 : }
225 :
226 : /** flush the bitstream */
227 27300 : static void j2k_flush(Jpeg2000EncoderContext *s)
228 : {
229 27300 : if (s->bit_index){
230 27300 : s->bit_index = 0;
231 27300 : s->buf++;
232 : }
233 27300 : }
234 :
235 : /* tag tree routines */
236 :
237 : /** code the value stored in node */
238 759169 : static void tag_tree_code(Jpeg2000EncoderContext *s, Jpeg2000TgtNode *node, int threshold)
239 : {
240 : Jpeg2000TgtNode *stack[30];
241 759169 : int sp = 1, curval = 0;
242 759169 : stack[0] = node;
243 :
244 759169 : node = node->parent;
245 1817234 : while(node){
246 917643 : if (node->vis){
247 618747 : curval = node->val;
248 618747 : break;
249 : }
250 298896 : node->vis++;
251 298896 : stack[sp++] = node;
252 298896 : node = node->parent;
253 : }
254 2508772 : while(--sp >= 0){
255 1058065 : if (stack[sp]->val >= threshold){
256 67631 : put_bits(s, 0, threshold - curval);
257 67631 : break;
258 : }
259 990434 : put_bits(s, 0, stack[sp]->val - curval);
260 990434 : put_bits(s, 1, 1);
261 990434 : curval = stack[sp]->val;
262 : }
263 759169 : }
264 :
265 : /** update the value in node */
266 826800 : static void tag_tree_update(Jpeg2000TgtNode *node)
267 : {
268 826800 : int lev = 0;
269 1653600 : while (node->parent){
270 747000 : if (node->parent->val <= node->val)
271 747000 : break;
272 0 : node->parent->val = node->val;
273 0 : node = node->parent;
274 0 : lev++;
275 : }
276 826800 : }
277 :
278 400 : static int put_siz(Jpeg2000EncoderContext *s)
279 : {
280 : int i;
281 :
282 400 : if (s->buf_end - s->buf < 40 + 3 * s->ncomponents)
283 0 : return -1;
284 :
285 400 : bytestream_put_be16(&s->buf, JPEG2000_SIZ);
286 400 : bytestream_put_be16(&s->buf, 38 + 3 * s->ncomponents); // Lsiz
287 400 : bytestream_put_be16(&s->buf, 0); // Rsiz
288 400 : bytestream_put_be32(&s->buf, s->width); // width
289 400 : bytestream_put_be32(&s->buf, s->height); // height
290 400 : bytestream_put_be32(&s->buf, 0); // X0Siz
291 400 : bytestream_put_be32(&s->buf, 0); // Y0Siz
292 :
293 400 : bytestream_put_be32(&s->buf, s->tile_width); // XTSiz
294 400 : bytestream_put_be32(&s->buf, s->tile_height); // YTSiz
295 400 : bytestream_put_be32(&s->buf, 0); // XT0Siz
296 400 : bytestream_put_be32(&s->buf, 0); // YT0Siz
297 400 : bytestream_put_be16(&s->buf, s->ncomponents); // CSiz
298 :
299 1600 : for (i = 0; i < s->ncomponents; i++){ // Ssiz_i XRsiz_i, YRsiz_i
300 1200 : bytestream_put_byte(&s->buf, 7);
301 1200 : bytestream_put_byte(&s->buf, i?1<<s->chroma_shift[0]:1);
302 1200 : bytestream_put_byte(&s->buf, i?1<<s->chroma_shift[1]:1);
303 : }
304 400 : return 0;
305 : }
306 :
307 400 : static int put_cod(Jpeg2000EncoderContext *s)
308 : {
309 400 : Jpeg2000CodingStyle *codsty = &s->codsty;
310 :
311 400 : if (s->buf_end - s->buf < 14)
312 0 : return -1;
313 :
314 400 : bytestream_put_be16(&s->buf, JPEG2000_COD);
315 400 : bytestream_put_be16(&s->buf, 12); // Lcod
316 400 : bytestream_put_byte(&s->buf, 0); // Scod
317 : // SGcod
318 400 : bytestream_put_byte(&s->buf, 0); // progression level
319 400 : bytestream_put_be16(&s->buf, 1); // num of layers
320 400 : if(s->avctx->pix_fmt == AV_PIX_FMT_YUV444P){
321 0 : bytestream_put_byte(&s->buf, 0); // unspecified
322 : }else{
323 400 : bytestream_put_byte(&s->buf, 0); // unspecified
324 : }
325 : // SPcod
326 400 : bytestream_put_byte(&s->buf, codsty->nreslevels - 1); // num of decomp. levels
327 400 : bytestream_put_byte(&s->buf, codsty->log2_cblk_width-2); // cblk width
328 400 : bytestream_put_byte(&s->buf, codsty->log2_cblk_height-2); // cblk height
329 400 : bytestream_put_byte(&s->buf, 0); // cblk style
330 400 : bytestream_put_byte(&s->buf, codsty->transform == FF_DWT53); // transformation
331 400 : return 0;
332 : }
333 :
334 400 : static int put_qcd(Jpeg2000EncoderContext *s, int compno)
335 : {
336 : int i, size;
337 400 : Jpeg2000CodingStyle *codsty = &s->codsty;
338 400 : Jpeg2000QuantStyle *qntsty = &s->qntsty;
339 :
340 400 : if (qntsty->quantsty == JPEG2000_QSTY_NONE)
341 200 : size = 4 + 3 * (codsty->nreslevels-1);
342 : else // QSTY_SE
343 200 : size = 5 + 6 * (codsty->nreslevels-1);
344 :
345 400 : if (s->buf_end - s->buf < size + 2)
346 0 : return -1;
347 :
348 400 : bytestream_put_be16(&s->buf, JPEG2000_QCD);
349 400 : bytestream_put_be16(&s->buf, size); // LQcd
350 400 : bytestream_put_byte(&s->buf, (qntsty->nguardbits << 5) | qntsty->quantsty); // Sqcd
351 400 : if (qntsty->quantsty == JPEG2000_QSTY_NONE)
352 4000 : for (i = 0; i < codsty->nreslevels * 3 - 2; i++)
353 3800 : bytestream_put_byte(&s->buf, qntsty->expn[i] << 3);
354 : else // QSTY_SE
355 4000 : for (i = 0; i < codsty->nreslevels * 3 - 2; i++)
356 3800 : bytestream_put_be16(&s->buf, (qntsty->expn[i] << 11) | qntsty->mant[i]);
357 400 : return 0;
358 : }
359 :
360 400 : static int put_com(Jpeg2000EncoderContext *s, int compno)
361 : {
362 400 : int size = 4 + strlen(LIBAVCODEC_IDENT);
363 :
364 400 : if (s->avctx->flags & AV_CODEC_FLAG_BITEXACT)
365 400 : return 0;
366 :
367 0 : if (s->buf_end - s->buf < size + 2)
368 0 : return -1;
369 :
370 0 : bytestream_put_be16(&s->buf, JPEG2000_COM);
371 0 : bytestream_put_be16(&s->buf, size);
372 0 : bytestream_put_be16(&s->buf, 1); // General use (ISO/IEC 8859-15 (Latin) values)
373 :
374 0 : bytestream_put_buffer(&s->buf, LIBAVCODEC_IDENT, strlen(LIBAVCODEC_IDENT));
375 :
376 0 : return 0;
377 : }
378 :
379 1300 : static uint8_t *put_sot(Jpeg2000EncoderContext *s, int tileno)
380 : {
381 : uint8_t *psotptr;
382 :
383 1300 : if (s->buf_end - s->buf < 12)
384 0 : return NULL;
385 :
386 1300 : bytestream_put_be16(&s->buf, JPEG2000_SOT);
387 1300 : bytestream_put_be16(&s->buf, 10); // Lsot
388 1300 : bytestream_put_be16(&s->buf, tileno); // Isot
389 :
390 1300 : psotptr = s->buf;
391 1300 : bytestream_put_be32(&s->buf, 0); // Psot (filled in later)
392 :
393 1300 : bytestream_put_byte(&s->buf, 0); // TPsot
394 1300 : bytestream_put_byte(&s->buf, 1); // TNsot
395 1300 : return psotptr;
396 : }
397 :
398 : /**
399 : * compute the sizes of tiles, resolution levels, bands, etc.
400 : * allocate memory for them
401 : * divide the input image into tile-components
402 : */
403 8 : static int init_tiles(Jpeg2000EncoderContext *s)
404 : {
405 : int tileno, tilex, tiley, compno;
406 8 : Jpeg2000CodingStyle *codsty = &s->codsty;
407 8 : Jpeg2000QuantStyle *qntsty = &s->qntsty;
408 :
409 8 : s->numXtiles = ff_jpeg2000_ceildiv(s->width, s->tile_width);
410 8 : s->numYtiles = ff_jpeg2000_ceildiv(s->height, s->tile_height);
411 :
412 8 : s->tile = av_malloc_array(s->numXtiles, s->numYtiles * sizeof(Jpeg2000Tile));
413 8 : if (!s->tile)
414 0 : return AVERROR(ENOMEM);
415 22 : for (tileno = 0, tiley = 0; tiley < s->numYtiles; tiley++)
416 40 : for (tilex = 0; tilex < s->numXtiles; tilex++, tileno++){
417 26 : Jpeg2000Tile *tile = s->tile + tileno;
418 :
419 26 : tile->comp = av_mallocz_array(s->ncomponents, sizeof(Jpeg2000Component));
420 26 : if (!tile->comp)
421 0 : return AVERROR(ENOMEM);
422 104 : for (compno = 0; compno < s->ncomponents; compno++){
423 78 : Jpeg2000Component *comp = tile->comp + compno;
424 : int ret, i, j;
425 :
426 78 : comp->coord[0][0] = comp->coord_o[0][0] = tilex * s->tile_width;
427 78 : comp->coord[0][1] = comp->coord_o[0][1] = FFMIN((tilex+1)*s->tile_width, s->width);
428 78 : comp->coord[1][0] = comp->coord_o[1][0] = tiley * s->tile_height;
429 78 : comp->coord[1][1] = comp->coord_o[1][1] = FFMIN((tiley+1)*s->tile_height, s->height);
430 78 : if (compno > 0)
431 156 : for (i = 0; i < 2; i++)
432 312 : for (j = 0; j < 2; j++)
433 208 : comp->coord[i][j] = comp->coord_o[i][j] = ff_jpeg2000_ceildivpow2(comp->coord[i][j], s->chroma_shift[i]);
434 :
435 260 : if ((ret = ff_jpeg2000_init_component(comp,
436 : codsty,
437 : qntsty,
438 78 : s->cbps[compno],
439 52 : compno?1<<s->chroma_shift[0]:1,
440 52 : compno?1<<s->chroma_shift[1]:1,
441 : s->avctx
442 : )) < 0)
443 0 : return ret;
444 : }
445 : }
446 8 : return 0;
447 : }
448 :
449 400 : static void copy_frame(Jpeg2000EncoderContext *s)
450 : {
451 : int tileno, compno, i, y, x;
452 : uint8_t *line;
453 1700 : for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
454 1300 : Jpeg2000Tile *tile = s->tile + tileno;
455 1300 : if (s->planar){
456 0 : for (compno = 0; compno < s->ncomponents; compno++){
457 0 : Jpeg2000Component *comp = tile->comp + compno;
458 0 : int *dst = comp->i_data;
459 0 : line = s->picture->data[compno]
460 0 : + comp->coord[1][0] * s->picture->linesize[compno]
461 0 : + comp->coord[0][0];
462 0 : for (y = comp->coord[1][0]; y < comp->coord[1][1]; y++){
463 0 : uint8_t *ptr = line;
464 0 : for (x = comp->coord[0][0]; x < comp->coord[0][1]; x++)
465 0 : *dst++ = *ptr++ - (1 << 7);
466 0 : line += s->picture->linesize[compno];
467 : }
468 : }
469 : } else{
470 2600 : line = s->picture->data[0] + tile->comp[0].coord[1][0] * s->picture->linesize[0]
471 1300 : + tile->comp[0].coord[0][0] * s->ncomponents;
472 :
473 1300 : i = 0;
474 177500 : for (y = tile->comp[0].coord[1][0]; y < tile->comp[0].coord[1][1]; y++){
475 176200 : uint8_t *ptr = line;
476 30704600 : for (x = tile->comp[0].coord[0][0]; x < tile->comp[0].coord[0][1]; x++, i++){
477 122113600 : for (compno = 0; compno < s->ncomponents; compno++){
478 91585200 : tile->comp[compno].i_data[i] = *ptr++ - (1 << 7);
479 : }
480 : }
481 176200 : line += s->picture->linesize[0];
482 : }
483 : }
484 : }
485 400 : }
486 :
487 8 : static void init_quantization(Jpeg2000EncoderContext *s)
488 : {
489 : int compno, reslevelno, bandno;
490 8 : Jpeg2000QuantStyle *qntsty = &s->qntsty;
491 8 : Jpeg2000CodingStyle *codsty = &s->codsty;
492 :
493 32 : for (compno = 0; compno < s->ncomponents; compno++){
494 24 : int gbandno = 0;
495 192 : for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
496 168 : int nbands, lev = codsty->nreslevels - reslevelno - 1;
497 168 : nbands = reslevelno ? 3 : 1;
498 624 : for (bandno = 0; bandno < nbands; bandno++, gbandno++){
499 456 : int expn, mant = 0;
500 :
501 456 : if (codsty->transform == FF_DWT97_INT){
502 228 : int bandpos = bandno + (reslevelno>0),
503 228 : ss = 81920000 / dwt_norms[0][bandpos][lev],
504 228 : log = av_log2(ss);
505 228 : mant = (11 - log < 0 ? ss >> log - 11 : ss << 11 - log) & 0x7ff;
506 228 : expn = s->cbps[compno] - log + 13;
507 : } else
508 228 : expn = ((bandno&2)>>1) + (reslevelno>0) + s->cbps[compno];
509 :
510 456 : qntsty->expn[gbandno] = expn;
511 456 : qntsty->mant[gbandno] = mant;
512 : }
513 : }
514 : }
515 8 : }
516 :
517 8 : static void init_luts(void)
518 : {
519 : int i, a,
520 8 : mask = ~((1<<NMSEDEC_FRACBITS)-1);
521 :
522 1032 : for (i = 0; i < (1 << NMSEDEC_BITS); i++){
523 1024 : lut_nmsedec_sig[i] = FFMAX(6*i - (9<<NMSEDEC_FRACBITS-1) << 12-NMSEDEC_FRACBITS, 0);
524 1024 : lut_nmsedec_sig0[i] = FFMAX((i*i + (1<<NMSEDEC_FRACBITS-1) & mask) << 1, 0);
525 :
526 1024 : a = (i >> (NMSEDEC_BITS-2)&2) + 1;
527 1024 : lut_nmsedec_ref[i] = FFMAX((-2*i + (1<<NMSEDEC_FRACBITS) + a*i - (a*a<<NMSEDEC_FRACBITS-2))
528 : << 13-NMSEDEC_FRACBITS, 0);
529 1024 : lut_nmsedec_ref0[i] = FFMAX(((i*i + (1-4*i << NMSEDEC_FRACBITS-1) + (1<<2*NMSEDEC_FRACBITS)) & mask)
530 : << 1, 0);
531 : }
532 8 : }
533 :
534 : /* tier-1 routines */
535 73779107 : static int getnmsedec_sig(int x, int bpno)
536 : {
537 73779107 : if (bpno > NMSEDEC_FRACBITS)
538 57508511 : return lut_nmsedec_sig[(x >> (bpno - NMSEDEC_FRACBITS)) & ((1 << NMSEDEC_BITS) - 1)];
539 16270596 : return lut_nmsedec_sig0[x & ((1 << NMSEDEC_BITS) - 1)];
540 : }
541 :
542 155371831 : static int getnmsedec_ref(int x, int bpno)
543 : {
544 155371831 : if (bpno > NMSEDEC_FRACBITS)
545 97863320 : return lut_nmsedec_ref[(x >> (bpno - NMSEDEC_FRACBITS)) & ((1 << NMSEDEC_BITS) - 1)];
546 57508511 : return lut_nmsedec_ref0[x & ((1 << NMSEDEC_BITS) - 1)];
547 : }
548 :
549 2341659 : static void encode_sigpass(Jpeg2000T1Context *t1, int width, int height, int bandno, int *nmsedec, int bpno)
550 : {
551 2341659 : int y0, x, y, mask = 1 << (bpno + NMSEDEC_FRACBITS);
552 10642563 : for (y0 = 0; y0 < height; y0 += 4)
553 133682311 : for (x = 0; x < width; x++)
554 624667412 : for (y = y0; y < height && y < y0+4; y++){
555 499286005 : if (!(t1->flags[(y+1) * t1->stride + x+1] & JPEG2000_T1_SIG) && (t1->flags[(y+1) * t1->stride + x+1] & JPEG2000_T1_SIG_NB)){
556 163633824 : int ctxno = ff_jpeg2000_getsigctxno(t1->flags[(y+1) * t1->stride + x+1], bandno),
557 163633824 : bit = t1->data[(y) * t1->stride + x] & mask ? 1 : 0;
558 163633824 : ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, bit);
559 163633824 : if (bit){
560 : int xorbit;
561 59386202 : int ctxno = ff_jpeg2000_getsgnctxno(t1->flags[(y+1) * t1->stride + x+1], &xorbit);
562 59386202 : ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, (t1->flags[(y+1) * t1->stride + x+1] >> 15) ^ xorbit);
563 59386202 : *nmsedec += getnmsedec_sig(t1->data[(y) * t1->stride + x], bpno + NMSEDEC_FRACBITS);
564 59386202 : ff_jpeg2000_set_significance(t1, x, y, t1->flags[(y+1) * t1->stride + x+1] >> 15);
565 : }
566 163633824 : t1->flags[(y+1) * t1->stride + x+1] |= JPEG2000_T1_VIS;
567 : }
568 : }
569 2341659 : }
570 :
571 2341659 : static void encode_refpass(Jpeg2000T1Context *t1, int width, int height, int *nmsedec, int bpno)
572 : {
573 2341659 : int y0, x, y, mask = 1 << (bpno + NMSEDEC_FRACBITS);
574 10642563 : for (y0 = 0; y0 < height; y0 += 4)
575 133682311 : for (x = 0; x < width; x++)
576 624667412 : for (y = y0; y < height && y < y0+4; y++)
577 499286005 : if ((t1->flags[(y+1) * t1->stride + x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS)) == JPEG2000_T1_SIG){
578 155371831 : int ctxno = ff_jpeg2000_getrefctxno(t1->flags[(y+1) * t1->stride + x+1]);
579 155371831 : *nmsedec += getnmsedec_ref(t1->data[(y) * t1->stride + x], bpno + NMSEDEC_FRACBITS);
580 155371831 : ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, t1->data[(y) * t1->stride + x] & mask ? 1:0);
581 155371831 : t1->flags[(y+1) * t1->stride + x+1] |= JPEG2000_T1_REF;
582 : }
583 2341659 : }
584 :
585 2755058 : static void encode_clnpass(Jpeg2000T1Context *t1, int width, int height, int bandno, int *nmsedec, int bpno)
586 : {
587 2755058 : int y0, x, y, mask = 1 << (bpno + NMSEDEC_FRACBITS);
588 12558961 : for (y0 = 0; y0 < height; y0 += 4)
589 158157809 : for (x = 0; x < width; x++){
590 343987230 : if (y0 + 3 < height && !(
591 205201223 : (t1->flags[(y0+1) * t1->stride + x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
592 110521932 : (t1->flags[(y0+2) * t1->stride + x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
593 52649523 : (t1->flags[(y0+3) * t1->stride + x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
594 48304510 : (t1->flags[(y0+4) * t1->stride + x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG))))
595 3619464 : {
596 : // aggregation mode
597 : int rlen;
598 221843104 : for (rlen = 0; rlen < 4; rlen++)
599 179323436 : if (t1->data[(y0+rlen) * t1->stride + x] & mask)
600 3619464 : break;
601 46139132 : ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + MQC_CX_RL, rlen != 4);
602 46139132 : if (rlen == 4)
603 42519668 : continue;
604 3619464 : ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI, rlen >> 1);
605 3619464 : ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI, rlen & 1);
606 12472020 : for (y = y0 + rlen; y < y0 + 4; y++){
607 8852556 : if (!(t1->flags[(y+1) * t1->stride + x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS))){
608 8852556 : int ctxno = ff_jpeg2000_getsigctxno(t1->flags[(y+1) * t1->stride + x+1], bandno);
609 8852556 : if (y > y0 + rlen)
610 5233092 : ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, t1->data[(y) * t1->stride + x] & mask ? 1:0);
611 8852556 : if (t1->data[(y) * t1->stride + x] & mask){ // newly significant
612 : int xorbit;
613 4325058 : int ctxno = ff_jpeg2000_getsgnctxno(t1->flags[(y+1) * t1->stride + x+1], &xorbit);
614 4325058 : *nmsedec += getnmsedec_sig(t1->data[(y) * t1->stride + x], bpno + NMSEDEC_FRACBITS);
615 4325058 : ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, (t1->flags[(y+1) * t1->stride + x+1] >> 15) ^ xorbit);
616 4325058 : ff_jpeg2000_set_significance(t1, x, y, t1->flags[(y+1) * t1->stride + x+1] >> 15);
617 : }
618 : }
619 8852556 : t1->flags[(y+1) * t1->stride + x+1] &= ~JPEG2000_T1_VIS;
620 : }
621 : } else{
622 508529450 : for (y = y0; y < y0 + 4 && y < height; y++){
623 406314676 : if (!(t1->flags[(y+1) * t1->stride + x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS))){
624 87309021 : int ctxno = ff_jpeg2000_getsigctxno(t1->flags[(y+1) * t1->stride + x+1], bandno);
625 87309021 : ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, t1->data[(y) * t1->stride + x] & mask ? 1:0);
626 87309021 : if (t1->data[(y) * t1->stride + x] & mask){ // newly significant
627 : int xorbit;
628 10067847 : int ctxno = ff_jpeg2000_getsgnctxno(t1->flags[(y+1) * t1->stride + x+1], &xorbit);
629 10067847 : *nmsedec += getnmsedec_sig(t1->data[(y) * t1->stride + x], bpno + NMSEDEC_FRACBITS);
630 10067847 : ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, (t1->flags[(y+1) * t1->stride + x+1] >> 15) ^ xorbit);
631 10067847 : ff_jpeg2000_set_significance(t1, x, y, t1->flags[(y+1) * t1->stride + x+1] >> 15);
632 : }
633 : }
634 406314676 : t1->flags[(y+1) * t1->stride + x+1] &= ~JPEG2000_T1_VIS;
635 : }
636 : }
637 : }
638 2755058 : }
639 :
640 413400 : static void encode_cblk(Jpeg2000EncoderContext *s, Jpeg2000T1Context *t1, Jpeg2000Cblk *cblk, Jpeg2000Tile *tile,
641 : int width, int height, int bandpos, int lev)
642 : {
643 413400 : int pass_t = 2, passno, x, y, max=0, nmsedec, bpno;
644 413400 : int64_t wmsedec = 0;
645 :
646 413400 : memset(t1->flags, 0, t1->stride * (height + 2) * sizeof(*t1->flags));
647 :
648 6372900 : for (y = 0; y < height; y++){
649 97544700 : for (x = 0; x < width; x++){
650 91585200 : if (t1->data[(y) * t1->stride + x] < 0){
651 35748311 : t1->flags[(y+1) * t1->stride + x+1] |= JPEG2000_T1_SGN;
652 35748311 : t1->data[(y) * t1->stride + x] = -t1->data[(y) * t1->stride + x];
653 : }
654 91585200 : max = FFMAX(max, t1->data[(y) * t1->stride + x]);
655 : }
656 : }
657 :
658 413400 : if (max == 0){
659 51 : cblk->nonzerobits = 0;
660 51 : bpno = 0;
661 : } else{
662 413349 : cblk->nonzerobits = av_log2(max) + 1 - NMSEDEC_FRACBITS;
663 413349 : bpno = cblk->nonzerobits - 1;
664 : }
665 :
666 413400 : cblk->data[0] = 0;
667 413400 : ff_mqc_initenc(&t1->mqc, cblk->data + 1);
668 :
669 7851776 : for (passno = 0; bpno >= 0; passno++){
670 7438376 : nmsedec=0;
671 :
672 7438376 : switch(pass_t){
673 2341659 : case 0: encode_sigpass(t1, width, height, bandpos, &nmsedec, bpno);
674 2341659 : break;
675 2341659 : case 1: encode_refpass(t1, width, height, &nmsedec, bpno);
676 2341659 : break;
677 2755058 : case 2: encode_clnpass(t1, width, height, bandpos, &nmsedec, bpno);
678 2755058 : break;
679 : }
680 :
681 7438376 : cblk->passes[passno].rate = ff_mqc_flush_to(&t1->mqc, cblk->passes[passno].flushed, &cblk->passes[passno].flushed_len);
682 7438376 : wmsedec += (int64_t)nmsedec << (2*bpno);
683 7438376 : cblk->passes[passno].disto = wmsedec;
684 :
685 7438376 : if (++pass_t == 3){
686 2755058 : pass_t = 0;
687 2755058 : bpno--;
688 : }
689 : }
690 413400 : cblk->npasses = passno;
691 413400 : cblk->ninclpasses = passno;
692 :
693 413400 : if (passno)
694 413399 : cblk->passes[passno-1].rate = ff_mqc_flush_to(&t1->mqc, cblk->passes[passno-1].flushed, &cblk->passes[passno-1].flushed_len);
695 413400 : }
696 :
697 : /* tier-2 routines: */
698 :
699 345769 : static void putnumpasses(Jpeg2000EncoderContext *s, int n)
700 : {
701 345769 : if (n == 1)
702 19966 : put_num(s, 0, 1);
703 325803 : else if (n == 2)
704 12191 : put_num(s, 2, 2);
705 313612 : else if (n <= 5)
706 103883 : put_num(s, 0xc | (n-3), 4);
707 209729 : else if (n <= 36)
708 209726 : put_num(s, 0x1e0 | (n-6), 9);
709 : else
710 3 : put_num(s, 0xff80 | (n-37), 16);
711 345769 : }
712 :
713 :
714 27300 : static int encode_packet(Jpeg2000EncoderContext *s, Jpeg2000ResLevel *rlevel, int precno,
715 : uint8_t *expn, int numgbits)
716 : {
717 27300 : int bandno, empty = 1;
718 :
719 : // init bitstream
720 27300 : *s->buf = 0;
721 27300 : s->bit_index = 0;
722 :
723 : // header
724 :
725 : // is the packet empty?
726 27300 : for (bandno = 0; bandno < rlevel->nbands; bandno++){
727 27300 : if (rlevel->band[bandno].coord[0][0] < rlevel->band[bandno].coord[0][1]
728 27300 : && rlevel->band[bandno].coord[1][0] < rlevel->band[bandno].coord[1][1]){
729 27300 : empty = 0;
730 27300 : break;
731 : }
732 : }
733 :
734 27300 : put_bits(s, !empty, 1);
735 27300 : if (empty){
736 0 : j2k_flush(s);
737 0 : return 0;
738 : }
739 :
740 101400 : for (bandno = 0; bandno < rlevel->nbands; bandno++){
741 74100 : Jpeg2000Band *band = rlevel->band + bandno;
742 74100 : Jpeg2000Prec *prec = band->prec + precno;
743 : int yi, xi, pos;
744 74100 : int cblknw = prec->nb_codeblocks_width;
745 :
746 74100 : if (band->coord[0][0] == band->coord[0][1]
747 74100 : || band->coord[1][0] == band->coord[1][1])
748 3600 : continue;
749 :
750 201300 : for (pos=0, yi = 0; yi < prec->nb_codeblocks_height; yi++){
751 544200 : for (xi = 0; xi < cblknw; xi++, pos++){
752 413400 : prec->cblkincl[pos].val = prec->cblk[yi * cblknw + xi].ninclpasses == 0;
753 413400 : tag_tree_update(prec->cblkincl + pos);
754 413400 : prec->zerobits[pos].val = expn[bandno] + numgbits - 1 - prec->cblk[yi * cblknw + xi].nonzerobits;
755 413400 : tag_tree_update(prec->zerobits + pos);
756 : }
757 : }
758 :
759 201300 : for (pos=0, yi = 0; yi < prec->nb_codeblocks_height; yi++){
760 544200 : for (xi = 0; xi < cblknw; xi++, pos++){
761 413400 : int pad = 0, llen, length;
762 413400 : Jpeg2000Cblk *cblk = prec->cblk + yi * cblknw + xi;
763 :
764 413400 : if (s->buf_end - s->buf < 20) // approximately
765 0 : return -1;
766 :
767 : // inclusion information
768 413400 : tag_tree_code(s, prec->cblkincl + pos, 1);
769 413400 : if (!cblk->ninclpasses)
770 67631 : continue;
771 : // zerobits information
772 345769 : tag_tree_code(s, prec->zerobits + pos, 100);
773 : // number of passes
774 345769 : putnumpasses(s, cblk->ninclpasses);
775 :
776 345769 : length = cblk->passes[cblk->ninclpasses-1].rate;
777 345769 : llen = av_log2(length) - av_log2(cblk->ninclpasses) - 2;
778 345769 : if (llen < 0){
779 98010 : pad = -llen;
780 98010 : llen = 0;
781 : }
782 : // length of code block
783 345769 : put_bits(s, 1, llen);
784 345769 : put_bits(s, 0, 1);
785 345769 : put_num(s, length, av_log2(length)+1+pad);
786 : }
787 : }
788 : }
789 27300 : j2k_flush(s);
790 101400 : for (bandno = 0; bandno < rlevel->nbands; bandno++){
791 74100 : Jpeg2000Band *band = rlevel->band + bandno;
792 74100 : Jpeg2000Prec *prec = band->prec + precno;
793 74100 : int yi, cblknw = prec->nb_codeblocks_width;
794 208500 : for (yi =0; yi < prec->nb_codeblocks_height; yi++){
795 : int xi;
796 551400 : for (xi = 0; xi < cblknw; xi++){
797 417000 : Jpeg2000Cblk *cblk = prec->cblk + yi * cblknw + xi;
798 417000 : if (cblk->ninclpasses){
799 345769 : if (s->buf_end - s->buf < cblk->passes[cblk->ninclpasses-1].rate)
800 0 : return -1;
801 691538 : bytestream_put_buffer(&s->buf, cblk->data + 1, cblk->passes[cblk->ninclpasses-1].rate
802 345769 : - cblk->passes[cblk->ninclpasses-1].flushed_len);
803 345769 : bytestream_put_buffer(&s->buf, cblk->passes[cblk->ninclpasses-1].flushed,
804 345769 : cblk->passes[cblk->ninclpasses-1].flushed_len);
805 : }
806 : }
807 : }
808 : }
809 27300 : return 0;
810 : }
811 :
812 1300 : static int encode_packets(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile, int tileno)
813 : {
814 : int compno, reslevelno, ret;
815 1300 : Jpeg2000CodingStyle *codsty = &s->codsty;
816 1300 : Jpeg2000QuantStyle *qntsty = &s->qntsty;
817 :
818 1300 : av_log(s->avctx, AV_LOG_DEBUG, "tier2\n");
819 : // lay-rlevel-comp-pos progression
820 10400 : for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
821 36400 : for (compno = 0; compno < s->ncomponents; compno++){
822 : int precno;
823 27300 : Jpeg2000ResLevel *reslevel = s->tile[tileno].comp[compno].reslevel + reslevelno;
824 54600 : for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
825 27300 : if ((ret = encode_packet(s, reslevel, precno, qntsty->expn + (reslevelno ? 3*reslevelno-2 : 0),
826 27300 : qntsty->nguardbits)) < 0)
827 0 : return ret;
828 : }
829 : }
830 : }
831 1300 : av_log(s->avctx, AV_LOG_DEBUG, "after tier2\n");
832 1300 : return 0;
833 : }
834 :
835 417000 : static int getcut(Jpeg2000Cblk *cblk, int64_t lambda, int dwt_norm)
836 : {
837 417000 : int passno, res = 0;
838 7855376 : for (passno = 0; passno < cblk->npasses; passno++){
839 : int dr;
840 : int64_t dd;
841 :
842 14876752 : dr = cblk->passes[passno].rate
843 7438376 : - (res ? cblk->passes[res-1].rate:0);
844 14876752 : dd = cblk->passes[passno].disto
845 7438376 : - (res ? cblk->passes[res-1].disto:0);
846 :
847 7438376 : if (((dd * dwt_norm) >> WMSEDEC_SHIFT) * dwt_norm >= dr * lambda)
848 2504255 : res = passno+1;
849 : }
850 417000 : return res;
851 : }
852 :
853 1300 : static void truncpasses(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile)
854 : {
855 : int precno, compno, reslevelno, bandno, cblkno, lev;
856 1300 : Jpeg2000CodingStyle *codsty = &s->codsty;
857 :
858 5200 : for (compno = 0; compno < s->ncomponents; compno++){
859 3900 : Jpeg2000Component *comp = tile->comp + compno;
860 :
861 31200 : for (reslevelno = 0, lev = codsty->nreslevels-1; reslevelno < codsty->nreslevels; reslevelno++, lev--){
862 27300 : Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
863 :
864 54600 : for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
865 101400 : for (bandno = 0; bandno < reslevel->nbands ; bandno++){
866 74100 : int bandpos = bandno + (reslevelno > 0);
867 74100 : Jpeg2000Band *band = reslevel->band + bandno;
868 74100 : Jpeg2000Prec *prec = band->prec + precno;
869 :
870 491100 : for (cblkno = 0; cblkno < prec->nb_codeblocks_height * prec->nb_codeblocks_width; cblkno++){
871 417000 : Jpeg2000Cblk *cblk = prec->cblk + cblkno;
872 :
873 417000 : cblk->ninclpasses = getcut(cblk, s->lambda,
874 417000 : (int64_t)dwt_norms[codsty->transform == FF_DWT53][bandpos][lev] * (int64_t)band->i_stepsize >> 15);
875 : }
876 : }
877 : }
878 : }
879 : }
880 1300 : }
881 :
882 1300 : static int encode_tile(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile, int tileno)
883 : {
884 : int compno, reslevelno, bandno, ret;
885 : Jpeg2000T1Context t1;
886 1300 : Jpeg2000CodingStyle *codsty = &s->codsty;
887 5200 : for (compno = 0; compno < s->ncomponents; compno++){
888 3900 : Jpeg2000Component *comp = s->tile[tileno].comp + compno;
889 :
890 3900 : t1.stride = (1<<codsty->log2_cblk_width) + 2;
891 :
892 3900 : av_log(s->avctx, AV_LOG_DEBUG,"dwt\n");
893 3900 : if ((ret = ff_dwt_encode(&comp->dwt, comp->i_data)) < 0)
894 0 : return ret;
895 3900 : av_log(s->avctx, AV_LOG_DEBUG,"after dwt -> tier1\n");
896 :
897 31200 : for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
898 27300 : Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
899 :
900 101400 : for (bandno = 0; bandno < reslevel->nbands ; bandno++){
901 74100 : Jpeg2000Band *band = reslevel->band + bandno;
902 74100 : Jpeg2000Prec *prec = band->prec; // we support only 1 precinct per band ATM in the encoder
903 74100 : int cblkx, cblky, cblkno=0, xx0, x0, xx1, y0, yy0, yy1, bandpos;
904 74100 : yy0 = bandno == 0 ? 0 : comp->reslevel[reslevelno-1].coord[1][1] - comp->reslevel[reslevelno-1].coord[1][0];
905 74100 : y0 = yy0;
906 148200 : yy1 = FFMIN(ff_jpeg2000_ceildivpow2(band->coord[1][0] + 1, band->log2_cblk_height) << band->log2_cblk_height,
907 74100 : band->coord[1][1]) - band->coord[1][0] + yy0;
908 :
909 74100 : if (band->coord[0][0] == band->coord[0][1] || band->coord[1][0] == band->coord[1][1])
910 3600 : continue;
911 :
912 70500 : bandpos = bandno + (reslevelno > 0);
913 :
914 201300 : for (cblky = 0; cblky < prec->nb_codeblocks_height; cblky++){
915 130800 : if (reslevelno == 0 || bandno == 1)
916 45600 : xx0 = 0;
917 : else
918 85200 : xx0 = comp->reslevel[reslevelno-1].coord[0][1] - comp->reslevel[reslevelno-1].coord[0][0];
919 130800 : x0 = xx0;
920 261600 : xx1 = FFMIN(ff_jpeg2000_ceildivpow2(band->coord[0][0] + 1, band->log2_cblk_width) << band->log2_cblk_width,
921 130800 : band->coord[0][1]) - band->coord[0][0] + xx0;
922 :
923 544200 : for (cblkx = 0; cblkx < prec->nb_codeblocks_width; cblkx++, cblkno++){
924 : int y, x;
925 413400 : if (codsty->transform == FF_DWT53){
926 3186450 : for (y = yy0; y < yy1; y++){
927 2979750 : int *ptr = t1.data + (y-yy0)*t1.stride;
928 48772350 : for (x = xx0; x < xx1; x++){
929 45792600 : *ptr++ = comp->i_data[(comp->coord[0][1] - comp->coord[0][0]) * y + x] << NMSEDEC_FRACBITS;
930 : }
931 : }
932 : } else{
933 3186450 : for (y = yy0; y < yy1; y++){
934 2979750 : int *ptr = t1.data + (y-yy0)*t1.stride;
935 48772350 : for (x = xx0; x < xx1; x++){
936 45792600 : *ptr = (comp->i_data[(comp->coord[0][1] - comp->coord[0][0]) * y + x]);
937 45792600 : *ptr = (int64_t)*ptr * (int64_t)(16384 * 65536 / band->i_stepsize) >> 15 - NMSEDEC_FRACBITS;
938 45792600 : ptr++;
939 : }
940 : }
941 : }
942 413400 : if (!prec->cblk[cblkno].data)
943 8268 : prec->cblk[cblkno].data = av_malloc(1 + 8192);
944 413400 : if (!prec->cblk[cblkno].passes)
945 8268 : prec->cblk[cblkno].passes = av_malloc_array(JPEG2000_MAX_PASSES, sizeof (*prec->cblk[cblkno].passes));
946 413400 : if (!prec->cblk[cblkno].data || !prec->cblk[cblkno].passes)
947 0 : return AVERROR(ENOMEM);
948 413400 : encode_cblk(s, &t1, prec->cblk + cblkno, tile, xx1 - xx0, yy1 - yy0,
949 413400 : bandpos, codsty->nreslevels - reslevelno - 1);
950 413400 : xx0 = xx1;
951 413400 : xx1 = FFMIN(xx1 + (1 << band->log2_cblk_width), band->coord[0][1] - band->coord[0][0] + x0);
952 : }
953 130800 : yy0 = yy1;
954 130800 : yy1 = FFMIN(yy1 + (1 << band->log2_cblk_height), band->coord[1][1] - band->coord[1][0] + y0);
955 : }
956 : }
957 : }
958 3900 : av_log(s->avctx, AV_LOG_DEBUG, "after tier1\n");
959 : }
960 :
961 1300 : av_log(s->avctx, AV_LOG_DEBUG, "rate control\n");
962 1300 : truncpasses(s, tile);
963 1300 : if ((ret = encode_packets(s, tile, tileno)) < 0)
964 0 : return ret;
965 1300 : av_log(s->avctx, AV_LOG_DEBUG, "after rate control\n");
966 1300 : return 0;
967 : }
968 :
969 8 : static void cleanup(Jpeg2000EncoderContext *s)
970 : {
971 : int tileno, compno;
972 8 : Jpeg2000CodingStyle *codsty = &s->codsty;
973 :
974 34 : for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
975 104 : for (compno = 0; compno < s->ncomponents; compno++){
976 78 : Jpeg2000Component *comp = s->tile[tileno].comp + compno;
977 78 : ff_jpeg2000_cleanup(comp, codsty);
978 : }
979 26 : av_freep(&s->tile[tileno].comp);
980 : }
981 8 : av_freep(&s->tile);
982 8 : }
983 :
984 400 : static void reinit(Jpeg2000EncoderContext *s)
985 : {
986 : int tileno, compno;
987 1700 : for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
988 1300 : Jpeg2000Tile *tile = s->tile + tileno;
989 5200 : for (compno = 0; compno < s->ncomponents; compno++)
990 3900 : ff_jpeg2000_reinit(tile->comp + compno, &s->codsty);
991 : }
992 400 : }
993 :
994 2000 : static void update_size(uint8_t *size, const uint8_t *end)
995 : {
996 2000 : AV_WB32(size, end-size);
997 2000 : }
998 :
999 400 : static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
1000 : const AVFrame *pict, int *got_packet)
1001 : {
1002 : int tileno, ret;
1003 400 : Jpeg2000EncoderContext *s = avctx->priv_data;
1004 : uint8_t *chunkstart, *jp2cstart, *jp2hstart;
1005 :
1006 400 : if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width*avctx->height*9 + AV_INPUT_BUFFER_MIN_SIZE, 0)) < 0)
1007 0 : return ret;
1008 :
1009 : // init:
1010 400 : s->buf = s->buf_start = pkt->data;
1011 400 : s->buf_end = pkt->data + pkt->size;
1012 :
1013 400 : s->picture = pict;
1014 :
1015 400 : s->lambda = s->picture->quality * LAMBDA_SCALE;
1016 :
1017 400 : copy_frame(s);
1018 400 : reinit(s);
1019 :
1020 400 : if (s->format == CODEC_JP2) {
1021 400 : av_assert0(s->buf == pkt->data);
1022 :
1023 400 : bytestream_put_be32(&s->buf, 0x0000000C);
1024 400 : bytestream_put_be32(&s->buf, 0x6A502020);
1025 400 : bytestream_put_be32(&s->buf, 0x0D0A870A);
1026 :
1027 400 : chunkstart = s->buf;
1028 400 : bytestream_put_be32(&s->buf, 0);
1029 400 : bytestream_put_buffer(&s->buf, "ftyp", 4);
1030 400 : bytestream_put_buffer(&s->buf, "jp2\040\040", 4);
1031 400 : bytestream_put_be32(&s->buf, 0);
1032 400 : bytestream_put_buffer(&s->buf, "jp2\040", 4);
1033 400 : update_size(chunkstart, s->buf);
1034 :
1035 400 : jp2hstart = s->buf;
1036 400 : bytestream_put_be32(&s->buf, 0);
1037 400 : bytestream_put_buffer(&s->buf, "jp2h", 4);
1038 :
1039 400 : chunkstart = s->buf;
1040 400 : bytestream_put_be32(&s->buf, 0);
1041 400 : bytestream_put_buffer(&s->buf, "ihdr", 4);
1042 400 : bytestream_put_be32(&s->buf, avctx->height);
1043 400 : bytestream_put_be32(&s->buf, avctx->width);
1044 400 : bytestream_put_be16(&s->buf, s->ncomponents);
1045 400 : bytestream_put_byte(&s->buf, s->cbps[0]);
1046 400 : bytestream_put_byte(&s->buf, 7);
1047 400 : bytestream_put_byte(&s->buf, 0);
1048 400 : bytestream_put_byte(&s->buf, 0);
1049 400 : update_size(chunkstart, s->buf);
1050 :
1051 400 : chunkstart = s->buf;
1052 400 : bytestream_put_be32(&s->buf, 0);
1053 400 : bytestream_put_buffer(&s->buf, "colr", 4);
1054 400 : bytestream_put_byte(&s->buf, 1);
1055 400 : bytestream_put_byte(&s->buf, 0);
1056 400 : bytestream_put_byte(&s->buf, 0);
1057 400 : if (s->ncomponents == 1) {
1058 0 : bytestream_put_be32(&s->buf, 17);
1059 400 : } else if (avctx->pix_fmt == AV_PIX_FMT_RGB24) {
1060 400 : bytestream_put_be32(&s->buf, 16);
1061 : } else {
1062 0 : bytestream_put_be32(&s->buf, 18);
1063 : }
1064 400 : update_size(chunkstart, s->buf);
1065 400 : update_size(jp2hstart, s->buf);
1066 :
1067 400 : jp2cstart = s->buf;
1068 400 : bytestream_put_be32(&s->buf, 0);
1069 400 : bytestream_put_buffer(&s->buf, "jp2c", 4);
1070 : }
1071 :
1072 400 : if (s->buf_end - s->buf < 2)
1073 0 : return -1;
1074 400 : bytestream_put_be16(&s->buf, JPEG2000_SOC);
1075 400 : if ((ret = put_siz(s)) < 0)
1076 0 : return ret;
1077 400 : if ((ret = put_cod(s)) < 0)
1078 0 : return ret;
1079 400 : if ((ret = put_qcd(s, 0)) < 0)
1080 0 : return ret;
1081 400 : if ((ret = put_com(s, 0)) < 0)
1082 0 : return ret;
1083 :
1084 3400 : for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
1085 : uint8_t *psotptr;
1086 1300 : if (!(psotptr = put_sot(s, tileno)))
1087 0 : return -1;
1088 1300 : if (s->buf_end - s->buf < 2)
1089 0 : return -1;
1090 1300 : bytestream_put_be16(&s->buf, JPEG2000_SOD);
1091 1300 : if ((ret = encode_tile(s, s->tile + tileno, tileno)) < 0)
1092 0 : return ret;
1093 1300 : bytestream_put_be32(&psotptr, s->buf - psotptr + 6);
1094 : }
1095 400 : if (s->buf_end - s->buf < 2)
1096 0 : return -1;
1097 400 : bytestream_put_be16(&s->buf, JPEG2000_EOC);
1098 :
1099 400 : if (s->format == CODEC_JP2)
1100 400 : update_size(jp2cstart, s->buf);
1101 :
1102 400 : av_log(s->avctx, AV_LOG_DEBUG, "end\n");
1103 400 : pkt->size = s->buf - s->buf_start;
1104 400 : pkt->flags |= AV_PKT_FLAG_KEY;
1105 400 : *got_packet = 1;
1106 :
1107 400 : return 0;
1108 : }
1109 :
1110 8 : static av_cold int j2kenc_init(AVCodecContext *avctx)
1111 : {
1112 : int i, ret;
1113 8 : Jpeg2000EncoderContext *s = avctx->priv_data;
1114 8 : Jpeg2000CodingStyle *codsty = &s->codsty;
1115 8 : Jpeg2000QuantStyle *qntsty = &s->qntsty;
1116 :
1117 8 : s->avctx = avctx;
1118 8 : av_log(s->avctx, AV_LOG_DEBUG, "init\n");
1119 :
1120 : #if FF_API_PRIVATE_OPT
1121 : FF_DISABLE_DEPRECATION_WARNINGS
1122 8 : if (avctx->prediction_method)
1123 0 : s->pred = avctx->prediction_method;
1124 : FF_ENABLE_DEPRECATION_WARNINGS
1125 : #endif
1126 :
1127 : // defaults:
1128 : // TODO: implement setting non-standard precinct size
1129 8 : memset(codsty->log2_prec_widths , 15, sizeof(codsty->log2_prec_widths ));
1130 8 : memset(codsty->log2_prec_heights, 15, sizeof(codsty->log2_prec_heights));
1131 8 : codsty->nreslevels2decode=
1132 8 : codsty->nreslevels = 7;
1133 8 : codsty->log2_cblk_width = 4;
1134 8 : codsty->log2_cblk_height = 4;
1135 8 : codsty->transform = s->pred ? FF_DWT53 : FF_DWT97_INT;
1136 :
1137 8 : qntsty->nguardbits = 1;
1138 :
1139 16 : if ((s->tile_width & (s->tile_width -1)) ||
1140 8 : (s->tile_height & (s->tile_height-1))) {
1141 0 : av_log(avctx, AV_LOG_WARNING, "Tile dimension not a power of 2\n");
1142 : }
1143 :
1144 8 : if (codsty->transform == FF_DWT53)
1145 4 : qntsty->quantsty = JPEG2000_QSTY_NONE;
1146 : else
1147 4 : qntsty->quantsty = JPEG2000_QSTY_SE;
1148 :
1149 8 : s->width = avctx->width;
1150 8 : s->height = avctx->height;
1151 :
1152 32 : for (i = 0; i < 3; i++)
1153 24 : s->cbps[i] = 8;
1154 :
1155 8 : if (avctx->pix_fmt == AV_PIX_FMT_RGB24){
1156 8 : s->ncomponents = 3;
1157 0 : } else if (avctx->pix_fmt == AV_PIX_FMT_GRAY8){
1158 0 : s->ncomponents = 1;
1159 : } else{ // planar YUV
1160 0 : s->planar = 1;
1161 0 : s->ncomponents = 3;
1162 0 : ret = av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt,
1163 0 : s->chroma_shift, s->chroma_shift + 1);
1164 0 : if (ret)
1165 0 : return ret;
1166 : }
1167 :
1168 8 : ff_jpeg2000_init_tier1_luts();
1169 8 : ff_mqc_init_context_tables();
1170 8 : init_luts();
1171 :
1172 8 : init_quantization(s);
1173 8 : if ((ret=init_tiles(s)) < 0)
1174 0 : return ret;
1175 :
1176 8 : av_log(s->avctx, AV_LOG_DEBUG, "after init\n");
1177 :
1178 8 : return 0;
1179 : }
1180 :
1181 8 : static int j2kenc_destroy(AVCodecContext *avctx)
1182 : {
1183 8 : Jpeg2000EncoderContext *s = avctx->priv_data;
1184 :
1185 8 : cleanup(s);
1186 8 : return 0;
1187 : }
1188 :
1189 : // taken from the libopenjpeg wraper so it matches
1190 :
1191 : #define OFFSET(x) offsetof(Jpeg2000EncoderContext, x)
1192 : #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
1193 : static const AVOption options[] = {
1194 : { "format", "Codec Format", OFFSET(format), AV_OPT_TYPE_INT, { .i64 = CODEC_JP2 }, CODEC_J2K, CODEC_JP2, VE, "format" },
1195 : { "j2k", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CODEC_J2K }, 0, 0, VE, "format" },
1196 : { "jp2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CODEC_JP2 }, 0, 0, VE, "format" },
1197 : { "tile_width", "Tile Width", OFFSET(tile_width), AV_OPT_TYPE_INT, { .i64 = 256 }, 1, 1<<30, VE, },
1198 : { "tile_height", "Tile Height", OFFSET(tile_height), AV_OPT_TYPE_INT, { .i64 = 256 }, 1, 1<<30, VE, },
1199 : { "pred", "DWT Type", OFFSET(pred), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE, "pred" },
1200 : { "dwt97int", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "pred" },
1201 : { "dwt53", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "pred" },
1202 :
1203 : { NULL }
1204 : };
1205 :
1206 : static const AVClass j2k_class = {
1207 : .class_name = "jpeg 2000 encoder",
1208 : .item_name = av_default_item_name,
1209 : .option = options,
1210 : .version = LIBAVUTIL_VERSION_INT,
1211 : };
1212 :
1213 : AVCodec ff_jpeg2000_encoder = {
1214 : .name = "jpeg2000",
1215 : .long_name = NULL_IF_CONFIG_SMALL("JPEG 2000"),
1216 : .type = AVMEDIA_TYPE_VIDEO,
1217 : .id = AV_CODEC_ID_JPEG2000,
1218 : .priv_data_size = sizeof(Jpeg2000EncoderContext),
1219 : .init = j2kenc_init,
1220 : .encode2 = encode_frame,
1221 : .close = j2kenc_destroy,
1222 : .pix_fmts = (const enum AVPixelFormat[]) {
1223 : AV_PIX_FMT_RGB24, AV_PIX_FMT_YUV444P, AV_PIX_FMT_GRAY8,
1224 : AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
1225 : AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
1226 : AV_PIX_FMT_NONE
1227 : },
1228 : .priv_class = &j2k_class,
1229 : };
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