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j2kenc.c
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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/opt.h"
73 
74 #define NMSEDEC_BITS 7
75 #define NMSEDEC_FRACBITS (NMSEDEC_BITS-1)
76 #define WMSEDEC_SHIFT 13 ///< must be >= 13
77 #define LAMBDA_SCALE (100000000LL << (WMSEDEC_SHIFT - 13))
78 
79 #define CODEC_JP2 1
80 #define CODEC_J2K 0
81 
82 static int lut_nmsedec_ref [1<<NMSEDEC_BITS],
86 
87 static const int dwt_norms[2][4][10] = { // [dwt_type][band][rlevel] (multiplied by 10000)
88  {{10000, 19650, 41770, 84030, 169000, 338400, 676900, 1353000, 2706000, 5409000},
89  {20220, 39890, 83550, 170400, 342700, 686300, 1373000, 2746000, 5490000},
90  {20220, 39890, 83550, 170400, 342700, 686300, 1373000, 2746000, 5490000},
91  {20800, 38650, 83070, 171800, 347100, 695900, 1393000, 2786000, 5572000}},
92 
93  {{10000, 15000, 27500, 53750, 106800, 213400, 426700, 853300, 1707000, 3413000},
94  {10380, 15920, 29190, 57030, 113300, 226400, 452500, 904800, 1809000},
95  {10380, 15920, 29190, 57030, 113300, 226400, 452500, 904800, 1809000},
96  { 7186, 9218, 15860, 30430, 60190, 120100, 240000, 479700, 959300}}
97 };
98 
99 typedef struct {
101 } Jpeg2000Tile;
102 
103 typedef struct {
104  AVClass *class;
106  const AVFrame *picture;
107 
108  int width, height; ///< image width and height
109  uint8_t cbps[4]; ///< bits per sample in particular components
110  int chroma_shift[2];
113  int tile_width, tile_height; ///< tile size
114  int numXtiles, numYtiles;
115 
120 
121  int64_t lambda;
122 
125 
127 
128  int format;
129  int pred;
131 
132 
133 /* debug */
134 #if 0
135 #undef ifprintf
136 #undef printf
137 
138 static void nspaces(FILE *fd, int n)
139 {
140  while(n--) putc(' ', fd);
141 }
142 
143 static void printcomp(Jpeg2000Component *comp)
144 {
145  int i;
146  for (i = 0; i < comp->y1 - comp->y0; i++)
147  ff_jpeg2000_printv(comp->i_data + i * (comp->x1 - comp->x0), comp->x1 - comp->x0);
148 }
149 
150 static void dump(Jpeg2000EncoderContext *s, FILE *fd)
151 {
152  int tileno, compno, reslevelno, bandno, precno;
153  fprintf(fd, "XSiz = %d, YSiz = %d, tile_width = %d, tile_height = %d\n"
154  "numXtiles = %d, numYtiles = %d, ncomponents = %d\n"
155  "tiles:\n",
156  s->width, s->height, s->tile_width, s->tile_height,
157  s->numXtiles, s->numYtiles, s->ncomponents);
158  for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
159  Jpeg2000Tile *tile = s->tile + tileno;
160  nspaces(fd, 2);
161  fprintf(fd, "tile %d:\n", tileno);
162  for(compno = 0; compno < s->ncomponents; compno++){
163  Jpeg2000Component *comp = tile->comp + compno;
164  nspaces(fd, 4);
165  fprintf(fd, "component %d:\n", compno);
166  nspaces(fd, 4);
167  fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d\n",
168  comp->x0, comp->x1, comp->y0, comp->y1);
169  for(reslevelno = 0; reslevelno < s->nreslevels; reslevelno++){
170  Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
171  nspaces(fd, 6);
172  fprintf(fd, "reslevel %d:\n", reslevelno);
173  nspaces(fd, 6);
174  fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d, nbands = %d\n",
175  reslevel->x0, reslevel->x1, reslevel->y0,
176  reslevel->y1, reslevel->nbands);
177  for(bandno = 0; bandno < reslevel->nbands; bandno++){
178  Jpeg2000Band *band = reslevel->band + bandno;
179  nspaces(fd, 8);
180  fprintf(fd, "band %d:\n", bandno);
181  nspaces(fd, 8);
182  fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d,"
183  "codeblock_width = %d, codeblock_height = %d cblknx = %d cblkny = %d\n",
184  band->x0, band->x1,
185  band->y0, band->y1,
186  band->codeblock_width, band->codeblock_height,
187  band->cblknx, band->cblkny);
188  for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
189  Jpeg2000Prec *prec = band->prec + precno;
190  nspaces(fd, 10);
191  fprintf(fd, "prec %d:\n", precno);
192  nspaces(fd, 10);
193  fprintf(fd, "xi0 = %d, xi1 = %d, yi0 = %d, yi1 = %d\n",
194  prec->xi0, prec->xi1, prec->yi0, prec->yi1);
195  }
196  }
197  }
198  }
199  }
200 }
201 #endif
202 
203 /* bitstream routines */
204 
205 /** put n times val bit */
206 static void put_bits(Jpeg2000EncoderContext *s, int val, int n) // TODO: optimize
207 {
208  while (n-- > 0){
209  if (s->bit_index == 8)
210  {
211  s->bit_index = *s->buf == 0xff;
212  *(++s->buf) = 0;
213  }
214  *s->buf |= val << (7 - s->bit_index++);
215  }
216 }
217 
218 /** put n least significant bits of a number num */
219 static void put_num(Jpeg2000EncoderContext *s, int num, int n)
220 {
221  while(--n >= 0)
222  put_bits(s, (num >> n) & 1, 1);
223 }
224 
225 /** flush the bitstream */
227 {
228  if (s->bit_index){
229  s->bit_index = 0;
230  s->buf++;
231  }
232 }
233 
234 /* tag tree routines */
235 
236 /** code the value stored in node */
237 static void tag_tree_code(Jpeg2000EncoderContext *s, Jpeg2000TgtNode *node, int threshold)
238 {
239  Jpeg2000TgtNode *stack[30];
240  int sp = 1, curval = 0;
241  stack[0] = node;
242 
243  node = node->parent;
244  while(node){
245  if (node->vis){
246  curval = node->val;
247  break;
248  }
249  node->vis++;
250  stack[sp++] = node;
251  node = node->parent;
252  }
253  while(--sp >= 0){
254  if (stack[sp]->val >= threshold){
255  put_bits(s, 0, threshold - curval);
256  break;
257  }
258  put_bits(s, 0, stack[sp]->val - curval);
259  put_bits(s, 1, 1);
260  curval = stack[sp]->val;
261  }
262 }
263 
264 /** update the value in node */
266 {
267  int lev = 0;
268  while (node->parent){
269  if (node->parent->val <= node->val)
270  break;
271  node->parent->val = node->val;
272  node = node->parent;
273  lev++;
274  }
275 }
276 
278 {
279  int i;
280 
281  if (s->buf_end - s->buf < 40 + 3 * s->ncomponents)
282  return -1;
283 
284  bytestream_put_be16(&s->buf, JPEG2000_SIZ);
285  bytestream_put_be16(&s->buf, 38 + 3 * s->ncomponents); // Lsiz
286  bytestream_put_be16(&s->buf, 0); // Rsiz
287  bytestream_put_be32(&s->buf, s->width); // width
288  bytestream_put_be32(&s->buf, s->height); // height
289  bytestream_put_be32(&s->buf, 0); // X0Siz
290  bytestream_put_be32(&s->buf, 0); // Y0Siz
291 
292  bytestream_put_be32(&s->buf, s->tile_width); // XTSiz
293  bytestream_put_be32(&s->buf, s->tile_height); // YTSiz
294  bytestream_put_be32(&s->buf, 0); // XT0Siz
295  bytestream_put_be32(&s->buf, 0); // YT0Siz
296  bytestream_put_be16(&s->buf, s->ncomponents); // CSiz
297 
298  for (i = 0; i < s->ncomponents; i++){ // Ssiz_i XRsiz_i, YRsiz_i
299  bytestream_put_byte(&s->buf, 7);
300  bytestream_put_byte(&s->buf, i?1<<s->chroma_shift[0]:1);
301  bytestream_put_byte(&s->buf, i?1<<s->chroma_shift[1]:1);
302  }
303  return 0;
304 }
305 
307 {
308  Jpeg2000CodingStyle *codsty = &s->codsty;
309 
310  if (s->buf_end - s->buf < 14)
311  return -1;
312 
313  bytestream_put_be16(&s->buf, JPEG2000_COD);
314  bytestream_put_be16(&s->buf, 12); // Lcod
315  bytestream_put_byte(&s->buf, 0); // Scod
316  // SGcod
317  bytestream_put_byte(&s->buf, 0); // progression level
318  bytestream_put_be16(&s->buf, 1); // num of layers
319  if(s->avctx->pix_fmt == AV_PIX_FMT_YUV444P){
320  bytestream_put_byte(&s->buf, 0); // unspecified
321  }else{
322  bytestream_put_byte(&s->buf, 0); // unspecified
323  }
324  // SPcod
325  bytestream_put_byte(&s->buf, codsty->nreslevels - 1); // num of decomp. levels
326  bytestream_put_byte(&s->buf, codsty->log2_cblk_width-2); // cblk width
327  bytestream_put_byte(&s->buf, codsty->log2_cblk_height-2); // cblk height
328  bytestream_put_byte(&s->buf, 0); // cblk style
329  bytestream_put_byte(&s->buf, codsty->transform == FF_DWT53); // transformation
330  return 0;
331 }
332 
333 static int put_qcd(Jpeg2000EncoderContext *s, int compno)
334 {
335  int i, size;
336  Jpeg2000CodingStyle *codsty = &s->codsty;
337  Jpeg2000QuantStyle *qntsty = &s->qntsty;
338 
339  if (qntsty->quantsty == JPEG2000_QSTY_NONE)
340  size = 4 + 3 * (codsty->nreslevels-1);
341  else // QSTY_SE
342  size = 5 + 6 * (codsty->nreslevels-1);
343 
344  if (s->buf_end - s->buf < size + 2)
345  return -1;
346 
347  bytestream_put_be16(&s->buf, JPEG2000_QCD);
348  bytestream_put_be16(&s->buf, size); // LQcd
349  bytestream_put_byte(&s->buf, (qntsty->nguardbits << 5) | qntsty->quantsty); // Sqcd
350  if (qntsty->quantsty == JPEG2000_QSTY_NONE)
351  for (i = 0; i < codsty->nreslevels * 3 - 2; i++)
352  bytestream_put_byte(&s->buf, qntsty->expn[i] << 3);
353  else // QSTY_SE
354  for (i = 0; i < codsty->nreslevels * 3 - 2; i++)
355  bytestream_put_be16(&s->buf, (qntsty->expn[i] << 11) | qntsty->mant[i]);
356  return 0;
357 }
358 
359 static int put_com(Jpeg2000EncoderContext *s, int compno)
360 {
361  int size = 4 + strlen(LIBAVCODEC_IDENT);
362 
364  return 0;
365 
366  if (s->buf_end - s->buf < size + 2)
367  return -1;
368 
369  bytestream_put_be16(&s->buf, JPEG2000_COM);
370  bytestream_put_be16(&s->buf, size);
371  bytestream_put_be16(&s->buf, 1); // General use (ISO/IEC 8859-15 (Latin) values)
372 
374 
375  return 0;
376 }
377 
378 static uint8_t *put_sot(Jpeg2000EncoderContext *s, int tileno)
379 {
380  uint8_t *psotptr;
381 
382  if (s->buf_end - s->buf < 12)
383  return NULL;
384 
385  bytestream_put_be16(&s->buf, JPEG2000_SOT);
386  bytestream_put_be16(&s->buf, 10); // Lsot
387  bytestream_put_be16(&s->buf, tileno); // Isot
388 
389  psotptr = s->buf;
390  bytestream_put_be32(&s->buf, 0); // Psot (filled in later)
391 
392  bytestream_put_byte(&s->buf, 0); // TPsot
393  bytestream_put_byte(&s->buf, 1); // TNsot
394  return psotptr;
395 }
396 
397 /**
398  * compute the sizes of tiles, resolution levels, bands, etc.
399  * allocate memory for them
400  * divide the input image into tile-components
401  */
403 {
404  int tileno, tilex, tiley, compno;
405  Jpeg2000CodingStyle *codsty = &s->codsty;
406  Jpeg2000QuantStyle *qntsty = &s->qntsty;
407 
410 
411  s->tile = av_malloc_array(s->numXtiles, s->numYtiles * sizeof(Jpeg2000Tile));
412  if (!s->tile)
413  return AVERROR(ENOMEM);
414  for (tileno = 0, tiley = 0; tiley < s->numYtiles; tiley++)
415  for (tilex = 0; tilex < s->numXtiles; tilex++, tileno++){
416  Jpeg2000Tile *tile = s->tile + tileno;
417 
418  tile->comp = av_mallocz_array(s->ncomponents, sizeof(Jpeg2000Component));
419  if (!tile->comp)
420  return AVERROR(ENOMEM);
421  for (compno = 0; compno < s->ncomponents; compno++){
422  Jpeg2000Component *comp = tile->comp + compno;
423  int ret, i, j;
424 
425  comp->coord[0][0] = comp->coord_o[0][0] = tilex * s->tile_width;
426  comp->coord[0][1] = comp->coord_o[0][1] = FFMIN((tilex+1)*s->tile_width, s->width);
427  comp->coord[1][0] = comp->coord_o[1][0] = tiley * s->tile_height;
428  comp->coord[1][1] = comp->coord_o[1][1] = FFMIN((tiley+1)*s->tile_height, s->height);
429  if (compno > 0)
430  for (i = 0; i < 2; i++)
431  for (j = 0; j < 2; j++)
432  comp->coord[i][j] = comp->coord_o[i][j] = ff_jpeg2000_ceildivpow2(comp->coord[i][j], s->chroma_shift[i]);
433 
434  if ((ret = ff_jpeg2000_init_component(comp,
435  codsty,
436  qntsty,
437  s->cbps[compno],
438  compno?1<<s->chroma_shift[0]:1,
439  compno?1<<s->chroma_shift[1]:1,
440  s->avctx
441  )) < 0)
442  return ret;
443  }
444  }
445  return 0;
446 }
447 
449 {
450  int tileno, compno, i, y, x;
451  uint8_t *line;
452  for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
453  Jpeg2000Tile *tile = s->tile + tileno;
454  if (s->planar){
455  for (compno = 0; compno < s->ncomponents; compno++){
456  Jpeg2000Component *comp = tile->comp + compno;
457  int *dst = comp->i_data;
458  line = s->picture->data[compno]
459  + comp->coord[1][0] * s->picture->linesize[compno]
460  + comp->coord[0][0];
461  for (y = comp->coord[1][0]; y < comp->coord[1][1]; y++){
462  uint8_t *ptr = line;
463  for (x = comp->coord[0][0]; x < comp->coord[0][1]; x++)
464  *dst++ = *ptr++ - (1 << 7);
465  line += s->picture->linesize[compno];
466  }
467  }
468  } else{
469  line = s->picture->data[0] + tile->comp[0].coord[1][0] * s->picture->linesize[0]
470  + tile->comp[0].coord[0][0] * s->ncomponents;
471 
472  i = 0;
473  for (y = tile->comp[0].coord[1][0]; y < tile->comp[0].coord[1][1]; y++){
474  uint8_t *ptr = line;
475  for (x = tile->comp[0].coord[0][0]; x < tile->comp[0].coord[0][1]; x++, i++){
476  for (compno = 0; compno < s->ncomponents; compno++){
477  tile->comp[compno].i_data[i] = *ptr++ - (1 << 7);
478  }
479  }
480  line += s->picture->linesize[0];
481  }
482  }
483  }
484 }
485 
487 {
488  int compno, reslevelno, bandno;
489  Jpeg2000QuantStyle *qntsty = &s->qntsty;
490  Jpeg2000CodingStyle *codsty = &s->codsty;
491 
492  for (compno = 0; compno < s->ncomponents; compno++){
493  int gbandno = 0;
494  for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
495  int nbands, lev = codsty->nreslevels - reslevelno - 1;
496  nbands = reslevelno ? 3 : 1;
497  for (bandno = 0; bandno < nbands; bandno++, gbandno++){
498  int expn, mant = 0;
499 
500  if (codsty->transform == FF_DWT97_INT){
501  int bandpos = bandno + (reslevelno>0),
502  ss = 81920000 / dwt_norms[0][bandpos][lev],
503  log = av_log2(ss);
504  mant = (11 - log < 0 ? ss >> log - 11 : ss << 11 - log) & 0x7ff;
505  expn = s->cbps[compno] - log + 13;
506  } else
507  expn = ((bandno&2)>>1) + (reslevelno>0) + s->cbps[compno];
508 
509  qntsty->expn[gbandno] = expn;
510  qntsty->mant[gbandno] = mant;
511  }
512  }
513  }
514 }
515 
516 static void init_luts(void)
517 {
518  int i, a,
519  mask = ~((1<<NMSEDEC_FRACBITS)-1);
520 
521  for (i = 0; i < (1 << NMSEDEC_BITS); i++){
522  lut_nmsedec_sig[i] = FFMAX(6*i - (9<<NMSEDEC_FRACBITS-1) << 12-NMSEDEC_FRACBITS, 0);
523  lut_nmsedec_sig0[i] = FFMAX((i*i + (1<<NMSEDEC_FRACBITS-1) & mask) << 1, 0);
524 
525  a = (i >> (NMSEDEC_BITS-2)&2) + 1;
526  lut_nmsedec_ref[i] = FFMAX((-2*i + (1<<NMSEDEC_FRACBITS) + a*i - (a*a<<NMSEDEC_FRACBITS-2))
527  << 13-NMSEDEC_FRACBITS, 0);
528  lut_nmsedec_ref0[i] = FFMAX(((i*i + (1-4*i << NMSEDEC_FRACBITS-1) + (1<<2*NMSEDEC_FRACBITS)) & mask)
529  << 1, 0);
530  }
531 }
532 
533 /* tier-1 routines */
534 static int getnmsedec_sig(int x, int bpno)
535 {
536  if (bpno > NMSEDEC_FRACBITS)
537  return lut_nmsedec_sig[(x >> (bpno - NMSEDEC_FRACBITS)) & ((1 << NMSEDEC_BITS) - 1)];
538  return lut_nmsedec_sig0[x & ((1 << NMSEDEC_BITS) - 1)];
539 }
540 
541 static int getnmsedec_ref(int x, int bpno)
542 {
543  if (bpno > NMSEDEC_FRACBITS)
544  return lut_nmsedec_ref[(x >> (bpno - NMSEDEC_FRACBITS)) & ((1 << NMSEDEC_BITS) - 1)];
545  return lut_nmsedec_ref0[x & ((1 << NMSEDEC_BITS) - 1)];
546 }
547 
548 static void encode_sigpass(Jpeg2000T1Context *t1, int width, int height, int bandno, int *nmsedec, int bpno)
549 {
550  int y0, x, y, mask = 1 << (bpno + NMSEDEC_FRACBITS);
551  for (y0 = 0; y0 < height; y0 += 4)
552  for (x = 0; x < width; x++)
553  for (y = y0; y < height && y < y0+4; y++){
554  if (!(t1->flags[(y+1) * t1->stride + x+1] & JPEG2000_T1_SIG) && (t1->flags[(y+1) * t1->stride + x+1] & JPEG2000_T1_SIG_NB)){
555  int ctxno = ff_jpeg2000_getsigctxno(t1->flags[(y+1) * t1->stride + x+1], bandno),
556  bit = t1->data[(y) * t1->stride + x] & mask ? 1 : 0;
557  ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, bit);
558  if (bit){
559  int xorbit;
560  int ctxno = ff_jpeg2000_getsgnctxno(t1->flags[(y+1) * t1->stride + x+1], &xorbit);
561  ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, (t1->flags[(y+1) * t1->stride + x+1] >> 15) ^ xorbit);
562  *nmsedec += getnmsedec_sig(t1->data[(y) * t1->stride + x], bpno + NMSEDEC_FRACBITS);
563  ff_jpeg2000_set_significance(t1, x, y, t1->flags[(y+1) * t1->stride + x+1] >> 15);
564  }
565  t1->flags[(y+1) * t1->stride + x+1] |= JPEG2000_T1_VIS;
566  }
567  }
568 }
569 
570 static void encode_refpass(Jpeg2000T1Context *t1, int width, int height, int *nmsedec, int bpno)
571 {
572  int y0, x, y, mask = 1 << (bpno + NMSEDEC_FRACBITS);
573  for (y0 = 0; y0 < height; y0 += 4)
574  for (x = 0; x < width; x++)
575  for (y = y0; y < height && y < y0+4; y++)
576  if ((t1->flags[(y+1) * t1->stride + x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS)) == JPEG2000_T1_SIG){
577  int ctxno = ff_jpeg2000_getrefctxno(t1->flags[(y+1) * t1->stride + x+1]);
578  *nmsedec += getnmsedec_ref(t1->data[(y) * t1->stride + x], bpno + NMSEDEC_FRACBITS);
579  ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, t1->data[(y) * t1->stride + x] & mask ? 1:0);
580  t1->flags[(y+1) * t1->stride + x+1] |= JPEG2000_T1_REF;
581  }
582 }
583 
584 static void encode_clnpass(Jpeg2000T1Context *t1, int width, int height, int bandno, int *nmsedec, int bpno)
585 {
586  int y0, x, y, mask = 1 << (bpno + NMSEDEC_FRACBITS);
587  for (y0 = 0; y0 < height; y0 += 4)
588  for (x = 0; x < width; x++){
589  if (y0 + 3 < height && !(
590  (t1->flags[(y0+1) * t1->stride + x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
591  (t1->flags[(y0+2) * t1->stride + x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
592  (t1->flags[(y0+3) * t1->stride + x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
593  (t1->flags[(y0+4) * t1->stride + x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG))))
594  {
595  // aggregation mode
596  int rlen;
597  for (rlen = 0; rlen < 4; rlen++)
598  if (t1->data[(y0+rlen) * t1->stride + x] & mask)
599  break;
600  ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + MQC_CX_RL, rlen != 4);
601  if (rlen == 4)
602  continue;
603  ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI, rlen >> 1);
604  ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI, rlen & 1);
605  for (y = y0 + rlen; y < y0 + 4; y++){
606  if (!(t1->flags[(y+1) * t1->stride + x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS))){
607  int ctxno = ff_jpeg2000_getsigctxno(t1->flags[(y+1) * t1->stride + x+1], bandno);
608  if (y > y0 + rlen)
609  ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, t1->data[(y) * t1->stride + x] & mask ? 1:0);
610  if (t1->data[(y) * t1->stride + x] & mask){ // newly significant
611  int xorbit;
612  int ctxno = ff_jpeg2000_getsgnctxno(t1->flags[(y+1) * t1->stride + x+1], &xorbit);
613  *nmsedec += getnmsedec_sig(t1->data[(y) * t1->stride + x], bpno + NMSEDEC_FRACBITS);
614  ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, (t1->flags[(y+1) * t1->stride + x+1] >> 15) ^ xorbit);
615  ff_jpeg2000_set_significance(t1, x, y, t1->flags[(y+1) * t1->stride + x+1] >> 15);
616  }
617  }
618  t1->flags[(y+1) * t1->stride + x+1] &= ~JPEG2000_T1_VIS;
619  }
620  } else{
621  for (y = y0; y < y0 + 4 && y < height; y++){
622  if (!(t1->flags[(y+1) * t1->stride + x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS))){
623  int ctxno = ff_jpeg2000_getsigctxno(t1->flags[(y+1) * t1->stride + x+1], bandno);
624  ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, t1->data[(y) * t1->stride + x] & mask ? 1:0);
625  if (t1->data[(y) * t1->stride + x] & mask){ // newly significant
626  int xorbit;
627  int ctxno = ff_jpeg2000_getsgnctxno(t1->flags[(y+1) * t1->stride + x+1], &xorbit);
628  *nmsedec += getnmsedec_sig(t1->data[(y) * t1->stride + x], bpno + NMSEDEC_FRACBITS);
629  ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, (t1->flags[(y+1) * t1->stride + x+1] >> 15) ^ xorbit);
630  ff_jpeg2000_set_significance(t1, x, y, t1->flags[(y+1) * t1->stride + x+1] >> 15);
631  }
632  }
633  t1->flags[(y+1) * t1->stride + x+1] &= ~JPEG2000_T1_VIS;
634  }
635  }
636  }
637 }
638 
640  int width, int height, int bandpos, int lev)
641 {
642  int pass_t = 2, passno, x, y, max=0, nmsedec, bpno;
643  int64_t wmsedec = 0;
644 
645  memset(t1->flags, 0, t1->stride * (height + 2) * sizeof(*t1->flags));
646 
647  for (y = 0; y < height; y++){
648  for (x = 0; x < width; x++){
649  if (t1->data[(y) * t1->stride + x] < 0){
650  t1->flags[(y+1) * t1->stride + x+1] |= JPEG2000_T1_SGN;
651  t1->data[(y) * t1->stride + x] = -t1->data[(y) * t1->stride + x];
652  }
653  max = FFMAX(max, t1->data[(y) * t1->stride + x]);
654  }
655  }
656 
657  if (max == 0){
658  cblk->nonzerobits = 0;
659  bpno = 0;
660  } else{
661  cblk->nonzerobits = av_log2(max) + 1 - NMSEDEC_FRACBITS;
662  bpno = cblk->nonzerobits - 1;
663  }
664 
665  ff_mqc_initenc(&t1->mqc, cblk->data);
666 
667  for (passno = 0; bpno >= 0; passno++){
668  nmsedec=0;
669 
670  switch(pass_t){
671  case 0: encode_sigpass(t1, width, height, bandpos, &nmsedec, bpno);
672  break;
673  case 1: encode_refpass(t1, width, height, &nmsedec, bpno);
674  break;
675  case 2: encode_clnpass(t1, width, height, bandpos, &nmsedec, bpno);
676  break;
677  }
678 
679  cblk->passes[passno].rate = ff_mqc_flush_to(&t1->mqc, cblk->passes[passno].flushed, &cblk->passes[passno].flushed_len);
680  wmsedec += (int64_t)nmsedec << (2*bpno);
681  cblk->passes[passno].disto = wmsedec;
682 
683  if (++pass_t == 3){
684  pass_t = 0;
685  bpno--;
686  }
687  }
688  cblk->npasses = passno;
689  cblk->ninclpasses = passno;
690 
691  cblk->passes[passno-1].rate = ff_mqc_flush_to(&t1->mqc, cblk->passes[passno-1].flushed, &cblk->passes[passno-1].flushed_len);
692 }
693 
694 /* tier-2 routines: */
695 
697 {
698  if (n == 1)
699  put_num(s, 0, 1);
700  else if (n == 2)
701  put_num(s, 2, 2);
702  else if (n <= 5)
703  put_num(s, 0xc | (n-3), 4);
704  else if (n <= 36)
705  put_num(s, 0x1e0 | (n-6), 9);
706  else
707  put_num(s, 0xff80 | (n-37), 16);
708 }
709 
710 
711 static int encode_packet(Jpeg2000EncoderContext *s, Jpeg2000ResLevel *rlevel, int precno,
712  uint8_t *expn, int numgbits)
713 {
714  int bandno, empty = 1;
715 
716  // init bitstream
717  *s->buf = 0;
718  s->bit_index = 0;
719 
720  // header
721 
722  // is the packet empty?
723  for (bandno = 0; bandno < rlevel->nbands; bandno++){
724  if (rlevel->band[bandno].coord[0][0] < rlevel->band[bandno].coord[0][1]
725  && rlevel->band[bandno].coord[1][0] < rlevel->band[bandno].coord[1][1]){
726  empty = 0;
727  break;
728  }
729  }
730 
731  put_bits(s, !empty, 1);
732  if (empty){
733  j2k_flush(s);
734  return 0;
735  }
736 
737  for (bandno = 0; bandno < rlevel->nbands; bandno++){
738  Jpeg2000Band *band = rlevel->band + bandno;
739  Jpeg2000Prec *prec = band->prec + precno;
740  int yi, xi, pos;
741  int cblknw = prec->nb_codeblocks_width;
742 
743  if (band->coord[0][0] == band->coord[0][1]
744  || band->coord[1][0] == band->coord[1][1])
745  continue;
746 
747  for (pos=0, yi = 0; yi < prec->nb_codeblocks_height; yi++){
748  for (xi = 0; xi < cblknw; xi++, pos++){
749  prec->cblkincl[pos].val = prec->cblk[yi * cblknw + xi].ninclpasses == 0;
750  tag_tree_update(prec->cblkincl + pos);
751  prec->zerobits[pos].val = expn[bandno] + numgbits - 1 - prec->cblk[yi * cblknw + xi].nonzerobits;
752  tag_tree_update(prec->zerobits + pos);
753  }
754  }
755 
756  for (pos=0, yi = 0; yi < prec->nb_codeblocks_height; yi++){
757  for (xi = 0; xi < cblknw; xi++, pos++){
758  int pad = 0, llen, length;
759  Jpeg2000Cblk *cblk = prec->cblk + yi * cblknw + xi;
760 
761  if (s->buf_end - s->buf < 20) // approximately
762  return -1;
763 
764  // inclusion information
765  tag_tree_code(s, prec->cblkincl + pos, 1);
766  if (!cblk->ninclpasses)
767  continue;
768  // zerobits information
769  tag_tree_code(s, prec->zerobits + pos, 100);
770  // number of passes
771  putnumpasses(s, cblk->ninclpasses);
772 
773  length = cblk->passes[cblk->ninclpasses-1].rate;
774  llen = av_log2(length) - av_log2(cblk->ninclpasses) - 2;
775  if (llen < 0){
776  pad = -llen;
777  llen = 0;
778  }
779  // length of code block
780  put_bits(s, 1, llen);
781  put_bits(s, 0, 1);
782  put_num(s, length, av_log2(length)+1+pad);
783  }
784  }
785  }
786  j2k_flush(s);
787  for (bandno = 0; bandno < rlevel->nbands; bandno++){
788  Jpeg2000Band *band = rlevel->band + bandno;
789  Jpeg2000Prec *prec = band->prec + precno;
790  int yi, cblknw = prec->nb_codeblocks_width;
791  for (yi =0; yi < prec->nb_codeblocks_height; yi++){
792  int xi;
793  for (xi = 0; xi < cblknw; xi++){
794  Jpeg2000Cblk *cblk = prec->cblk + yi * cblknw + xi;
795  if (cblk->ninclpasses){
796  if (s->buf_end - s->buf < cblk->passes[cblk->ninclpasses-1].rate)
797  return -1;
798  bytestream_put_buffer(&s->buf, cblk->data, cblk->passes[cblk->ninclpasses-1].rate
799  - cblk->passes[cblk->ninclpasses-1].flushed_len);
800  bytestream_put_buffer(&s->buf, cblk->passes[cblk->ninclpasses-1].flushed,
801  cblk->passes[cblk->ninclpasses-1].flushed_len);
802  }
803  }
804  }
805  }
806  return 0;
807 }
808 
809 static int encode_packets(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile, int tileno)
810 {
811  int compno, reslevelno, ret;
812  Jpeg2000CodingStyle *codsty = &s->codsty;
813  Jpeg2000QuantStyle *qntsty = &s->qntsty;
814 
815  av_log(s->avctx, AV_LOG_DEBUG, "tier2\n");
816  // lay-rlevel-comp-pos progression
817  for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
818  for (compno = 0; compno < s->ncomponents; compno++){
819  int precno;
820  Jpeg2000ResLevel *reslevel = s->tile[tileno].comp[compno].reslevel + reslevelno;
821  for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
822  if ((ret = encode_packet(s, reslevel, precno, qntsty->expn + (reslevelno ? 3*reslevelno-2 : 0),
823  qntsty->nguardbits)) < 0)
824  return ret;
825  }
826  }
827  }
828  av_log(s->avctx, AV_LOG_DEBUG, "after tier2\n");
829  return 0;
830 }
831 
832 static int getcut(Jpeg2000Cblk *cblk, int64_t lambda, int dwt_norm)
833 {
834  int passno, res = 0;
835  for (passno = 0; passno < cblk->npasses; passno++){
836  int dr;
837  int64_t dd;
838 
839  dr = cblk->passes[passno].rate
840  - (res ? cblk->passes[res-1].rate:0);
841  dd = cblk->passes[passno].disto
842  - (res ? cblk->passes[res-1].disto:0);
843 
844  if (((dd * dwt_norm) >> WMSEDEC_SHIFT) * dwt_norm >= dr * lambda)
845  res = passno+1;
846  }
847  return res;
848 }
849 
851 {
852  int precno, compno, reslevelno, bandno, cblkno, lev;
853  Jpeg2000CodingStyle *codsty = &s->codsty;
854 
855  for (compno = 0; compno < s->ncomponents; compno++){
856  Jpeg2000Component *comp = tile->comp + compno;
857 
858  for (reslevelno = 0, lev = codsty->nreslevels-1; reslevelno < codsty->nreslevels; reslevelno++, lev--){
859  Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
860 
861  for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
862  for (bandno = 0; bandno < reslevel->nbands ; bandno++){
863  int bandpos = bandno + (reslevelno > 0);
864  Jpeg2000Band *band = reslevel->band + bandno;
865  Jpeg2000Prec *prec = band->prec + precno;
866 
867  for (cblkno = 0; cblkno < prec->nb_codeblocks_height * prec->nb_codeblocks_width; cblkno++){
868  Jpeg2000Cblk *cblk = prec->cblk + cblkno;
869 
870  cblk->ninclpasses = getcut(cblk, s->lambda,
871  (int64_t)dwt_norms[codsty->transform == FF_DWT53][bandpos][lev] * (int64_t)band->i_stepsize >> 15);
872  }
873  }
874  }
875  }
876  }
877 }
878 
879 static int encode_tile(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile, int tileno)
880 {
881  int compno, reslevelno, bandno, ret;
883  Jpeg2000CodingStyle *codsty = &s->codsty;
884  for (compno = 0; compno < s->ncomponents; compno++){
885  Jpeg2000Component *comp = s->tile[tileno].comp + compno;
886 
887  t1.stride = (1<<codsty->log2_cblk_width) + 2;
888 
889  av_log(s->avctx, AV_LOG_DEBUG,"dwt\n");
890  if ((ret = ff_dwt_encode(&comp->dwt, comp->i_data)) < 0)
891  return ret;
892  av_log(s->avctx, AV_LOG_DEBUG,"after dwt -> tier1\n");
893 
894  for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
895  Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
896 
897  for (bandno = 0; bandno < reslevel->nbands ; bandno++){
898  Jpeg2000Band *band = reslevel->band + bandno;
899  Jpeg2000Prec *prec = band->prec; // we support only 1 precinct per band ATM in the encoder
900  int cblkx, cblky, cblkno=0, xx0, x0, xx1, y0, yy0, yy1, bandpos;
901  yy0 = bandno == 0 ? 0 : comp->reslevel[reslevelno-1].coord[1][1] - comp->reslevel[reslevelno-1].coord[1][0];
902  y0 = yy0;
903  yy1 = FFMIN(ff_jpeg2000_ceildivpow2(band->coord[1][0] + 1, band->log2_cblk_height) << band->log2_cblk_height,
904  band->coord[1][1]) - band->coord[1][0] + yy0;
905 
906  if (band->coord[0][0] == band->coord[0][1] || band->coord[1][0] == band->coord[1][1])
907  continue;
908 
909  bandpos = bandno + (reslevelno > 0);
910 
911  for (cblky = 0; cblky < prec->nb_codeblocks_height; cblky++){
912  if (reslevelno == 0 || bandno == 1)
913  xx0 = 0;
914  else
915  xx0 = comp->reslevel[reslevelno-1].coord[0][1] - comp->reslevel[reslevelno-1].coord[0][0];
916  x0 = xx0;
917  xx1 = FFMIN(ff_jpeg2000_ceildivpow2(band->coord[0][0] + 1, band->log2_cblk_width) << band->log2_cblk_width,
918  band->coord[0][1]) - band->coord[0][0] + xx0;
919 
920  for (cblkx = 0; cblkx < prec->nb_codeblocks_width; cblkx++, cblkno++){
921  int y, x;
922  if (codsty->transform == FF_DWT53){
923  for (y = yy0; y < yy1; y++){
924  int *ptr = t1.data + (y-yy0)*t1.stride;
925  for (x = xx0; x < xx1; x++){
926  *ptr++ = comp->i_data[(comp->coord[0][1] - comp->coord[0][0]) * y + x] << NMSEDEC_FRACBITS;
927  }
928  }
929  } else{
930  for (y = yy0; y < yy1; y++){
931  int *ptr = t1.data + (y-yy0)*t1.stride;
932  for (x = xx0; x < xx1; x++){
933  *ptr = (comp->i_data[(comp->coord[0][1] - comp->coord[0][0]) * y + x]);
934  *ptr = (int64_t)*ptr * (int64_t)(16384 * 65536 / band->i_stepsize) >> 15 - NMSEDEC_FRACBITS;
935  ptr++;
936  }
937  }
938  }
939  encode_cblk(s, &t1, prec->cblk + cblkno, tile, xx1 - xx0, yy1 - yy0,
940  bandpos, codsty->nreslevels - reslevelno - 1);
941  xx0 = xx1;
942  xx1 = FFMIN(xx1 + (1 << band->log2_cblk_width), band->coord[0][1] - band->coord[0][0] + x0);
943  }
944  yy0 = yy1;
945  yy1 = FFMIN(yy1 + (1 << band->log2_cblk_height), band->coord[1][1] - band->coord[1][0] + y0);
946  }
947  }
948  }
949  av_log(s->avctx, AV_LOG_DEBUG, "after tier1\n");
950  }
951 
952  av_log(s->avctx, AV_LOG_DEBUG, "rate control\n");
953  truncpasses(s, tile);
954  if ((ret = encode_packets(s, tile, tileno)) < 0)
955  return ret;
956  av_log(s->avctx, AV_LOG_DEBUG, "after rate control\n");
957  return 0;
958 }
959 
961 {
962  int tileno, compno;
963  Jpeg2000CodingStyle *codsty = &s->codsty;
964 
965  for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
966  for (compno = 0; compno < s->ncomponents; compno++){
967  Jpeg2000Component *comp = s->tile[tileno].comp + compno;
968  ff_jpeg2000_cleanup(comp, codsty);
969  }
970  av_freep(&s->tile[tileno].comp);
971  }
972  av_freep(&s->tile);
973 }
974 
976 {
977  int tileno, compno;
978  for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
979  Jpeg2000Tile *tile = s->tile + tileno;
980  for (compno = 0; compno < s->ncomponents; compno++)
981  ff_jpeg2000_reinit(tile->comp + compno, &s->codsty);
982  }
983 }
984 
985 static void update_size(uint8_t *size, const uint8_t *end)
986 {
987  AV_WB32(size, end-size);
988 }
989 
991  const AVFrame *pict, int *got_packet)
992 {
993  int tileno, ret;
994  Jpeg2000EncoderContext *s = avctx->priv_data;
995  uint8_t *chunkstart, *jp2cstart, *jp2hstart;
996 
997  if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width*avctx->height*9 + AV_INPUT_BUFFER_MIN_SIZE, 0)) < 0)
998  return ret;
999 
1000  // init:
1001  s->buf = s->buf_start = pkt->data;
1002  s->buf_end = pkt->data + pkt->size;
1003 
1004  s->picture = pict;
1005 
1006  s->lambda = s->picture->quality * LAMBDA_SCALE;
1007 
1008  copy_frame(s);
1009  reinit(s);
1010 
1011  if (s->format == CODEC_JP2) {
1012  av_assert0(s->buf == pkt->data);
1013 
1014  bytestream_put_be32(&s->buf, 0x0000000C);
1015  bytestream_put_be32(&s->buf, 0x6A502020);
1016  bytestream_put_be32(&s->buf, 0x0D0A870A);
1017 
1018  chunkstart = s->buf;
1019  bytestream_put_be32(&s->buf, 0);
1020  bytestream_put_buffer(&s->buf, "ftyp", 4);
1021  bytestream_put_buffer(&s->buf, "jp2\040\040", 4);
1022  bytestream_put_be32(&s->buf, 0);
1023  bytestream_put_buffer(&s->buf, "jp2\040", 4);
1024  update_size(chunkstart, s->buf);
1025 
1026  jp2hstart = s->buf;
1027  bytestream_put_be32(&s->buf, 0);
1028  bytestream_put_buffer(&s->buf, "jp2h", 4);
1029 
1030  chunkstart = s->buf;
1031  bytestream_put_be32(&s->buf, 0);
1032  bytestream_put_buffer(&s->buf, "ihdr", 4);
1033  bytestream_put_be32(&s->buf, avctx->height);
1034  bytestream_put_be32(&s->buf, avctx->width);
1035  bytestream_put_be16(&s->buf, s->ncomponents);
1036  bytestream_put_byte(&s->buf, s->cbps[0]);
1037  bytestream_put_byte(&s->buf, 7);
1038  bytestream_put_byte(&s->buf, 0);
1039  bytestream_put_byte(&s->buf, 0);
1040  update_size(chunkstart, s->buf);
1041 
1042  chunkstart = s->buf;
1043  bytestream_put_be32(&s->buf, 0);
1044  bytestream_put_buffer(&s->buf, "colr", 4);
1045  bytestream_put_byte(&s->buf, 1);
1046  bytestream_put_byte(&s->buf, 0);
1047  bytestream_put_byte(&s->buf, 0);
1048  if (s->ncomponents == 1) {
1049  bytestream_put_be32(&s->buf, 17);
1050  } else if (avctx->pix_fmt == AV_PIX_FMT_RGB24) {
1051  bytestream_put_be32(&s->buf, 16);
1052  } else {
1053  bytestream_put_be32(&s->buf, 18);
1054  }
1055  update_size(chunkstart, s->buf);
1056  update_size(jp2hstart, s->buf);
1057 
1058  jp2cstart = s->buf;
1059  bytestream_put_be32(&s->buf, 0);
1060  bytestream_put_buffer(&s->buf, "jp2c", 4);
1061  }
1062 
1063  if (s->buf_end - s->buf < 2)
1064  return -1;
1065  bytestream_put_be16(&s->buf, JPEG2000_SOC);
1066  if ((ret = put_siz(s)) < 0)
1067  return ret;
1068  if ((ret = put_cod(s)) < 0)
1069  return ret;
1070  if ((ret = put_qcd(s, 0)) < 0)
1071  return ret;
1072  if ((ret = put_com(s, 0)) < 0)
1073  return ret;
1074 
1075  for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
1076  uint8_t *psotptr;
1077  if (!(psotptr = put_sot(s, tileno)))
1078  return -1;
1079  if (s->buf_end - s->buf < 2)
1080  return -1;
1081  bytestream_put_be16(&s->buf, JPEG2000_SOD);
1082  if ((ret = encode_tile(s, s->tile + tileno, tileno)) < 0)
1083  return ret;
1084  bytestream_put_be32(&psotptr, s->buf - psotptr + 6);
1085  }
1086  if (s->buf_end - s->buf < 2)
1087  return -1;
1088  bytestream_put_be16(&s->buf, JPEG2000_EOC);
1089 
1090  if (s->format == CODEC_JP2)
1091  update_size(jp2cstart, s->buf);
1092 
1093  av_log(s->avctx, AV_LOG_DEBUG, "end\n");
1094  pkt->size = s->buf - s->buf_start;
1095  pkt->flags |= AV_PKT_FLAG_KEY;
1096  *got_packet = 1;
1097 
1098  return 0;
1099 }
1100 
1102 {
1103  int i, ret;
1104  Jpeg2000EncoderContext *s = avctx->priv_data;
1105  Jpeg2000CodingStyle *codsty = &s->codsty;
1106  Jpeg2000QuantStyle *qntsty = &s->qntsty;
1107 
1108  s->avctx = avctx;
1109  av_log(s->avctx, AV_LOG_DEBUG, "init\n");
1110 
1111 #if FF_API_PRIVATE_OPT
1113  if (avctx->prediction_method)
1114  s->pred = avctx->prediction_method;
1116 #endif
1117 
1118  // defaults:
1119  // TODO: implement setting non-standard precinct size
1120  memset(codsty->log2_prec_widths , 15, sizeof(codsty->log2_prec_widths ));
1121  memset(codsty->log2_prec_heights, 15, sizeof(codsty->log2_prec_heights));
1122  codsty->nreslevels2decode=
1123  codsty->nreslevels = 7;
1124  codsty->log2_cblk_width = 4;
1125  codsty->log2_cblk_height = 4;
1126  codsty->transform = s->pred ? FF_DWT53 : FF_DWT97_INT;
1127 
1128  qntsty->nguardbits = 1;
1129 
1130  if ((s->tile_width & (s->tile_width -1)) ||
1131  (s->tile_height & (s->tile_height-1))) {
1132  av_log(avctx, AV_LOG_WARNING, "Tile dimension not a power of 2\n");
1133  }
1134 
1135  if (codsty->transform == FF_DWT53)
1136  qntsty->quantsty = JPEG2000_QSTY_NONE;
1137  else
1138  qntsty->quantsty = JPEG2000_QSTY_SE;
1139 
1140  s->width = avctx->width;
1141  s->height = avctx->height;
1142 
1143  for (i = 0; i < 3; i++)
1144  s->cbps[i] = 8;
1145 
1146  if (avctx->pix_fmt == AV_PIX_FMT_RGB24){
1147  s->ncomponents = 3;
1148  } else if (avctx->pix_fmt == AV_PIX_FMT_GRAY8){
1149  s->ncomponents = 1;
1150  } else{ // planar YUV
1151  s->planar = 1;
1152  s->ncomponents = 3;
1154  s->chroma_shift, s->chroma_shift + 1);
1155  }
1156 
1159  init_luts();
1160 
1161  init_quantization(s);
1162  if ((ret=init_tiles(s)) < 0)
1163  return ret;
1164 
1165  av_log(s->avctx, AV_LOG_DEBUG, "after init\n");
1166 
1167  return 0;
1168 }
1169 
1170 static int j2kenc_destroy(AVCodecContext *avctx)
1171 {
1172  Jpeg2000EncoderContext *s = avctx->priv_data;
1173 
1174  cleanup(s);
1175  return 0;
1176 }
1177 
1178 // taken from the libopenjpeg wraper so it matches
1179 
1180 #define OFFSET(x) offsetof(Jpeg2000EncoderContext, x)
1181 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
1182 static const AVOption options[] = {
1183  { "format", "Codec Format", OFFSET(format), AV_OPT_TYPE_INT, { .i64 = CODEC_JP2 }, CODEC_J2K, CODEC_JP2, VE, "format" },
1184  { "j2k", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CODEC_J2K }, 0, 0, VE, "format" },
1185  { "jp2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CODEC_JP2 }, 0, 0, VE, "format" },
1186  { "tile_width", "Tile Width", OFFSET(tile_width), AV_OPT_TYPE_INT, { .i64 = 256 }, 1, 1<<30, VE, },
1187  { "tile_height", "Tile Height", OFFSET(tile_height), AV_OPT_TYPE_INT, { .i64 = 256 }, 1, 1<<30, VE, },
1188  { "pred", "DWT Type", OFFSET(pred), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE, "pred" },
1189  { "dwt97int", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "pred" },
1190  { "dwt53", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "pred" },
1191 
1192  { NULL }
1193 };
1194 
1195 static const AVClass j2k_class = {
1196  .class_name = "jpeg 2000 encoder",
1197  .item_name = av_default_item_name,
1198  .option = options,
1199  .version = LIBAVUTIL_VERSION_INT,
1200 };
1201 
1203  .name = "jpeg2000",
1204  .long_name = NULL_IF_CONFIG_SMALL("JPEG 2000"),
1205  .type = AVMEDIA_TYPE_VIDEO,
1206  .id = AV_CODEC_ID_JPEG2000,
1207  .priv_data_size = sizeof(Jpeg2000EncoderContext),
1208  .init = j2kenc_init,
1209  .encode2 = encode_frame,
1210  .close = j2kenc_destroy,
1211  .pix_fmts = (const enum AVPixelFormat[]) {
1216  },
1217  .priv_class = &j2k_class,
1218 };
static int getcut(Jpeg2000Cblk *cblk, int64_t lambda, int dwt_norm)
Definition: j2kenc.c:832
uint8_t nguardbits
Definition: jpeg2000.h:153
#define NULL
Definition: coverity.c:32
const char const char void * val
Definition: avisynth_c.h:634
const char * s
Definition: avisynth_c.h:631
#define NMSEDEC_BITS
Definition: j2kenc.c:74
void av_cold ff_jpeg2000_init_tier1_luts(void)
Definition: jpeg2000.c:159
void ff_jpeg2000_cleanup(Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty)
Definition: jpeg2000.c:576
This structure describes decoded (raw) audio or video data.
Definition: frame.h:180
DWTContext dwt
Definition: jpeg2000.h:208
AVOption.
Definition: opt.h:245
Jpeg2000TgtNode * cblkincl
Definition: jpeg2000.h:184
static void cleanup(Jpeg2000EncoderContext *s)
Definition: j2kenc.c:960
#define JPEG2000_T1_SIG_NB
Definition: jpeg2000.h:85
AVCodec ff_jpeg2000_encoder
Definition: j2kenc.c:1202
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
static void put_bits(Jpeg2000EncoderContext *s, int val, int n)
put n times val bit
Definition: j2kenc.c:206
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
#define LIBAVUTIL_VERSION_INT
Definition: version.h:70
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:64
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
uint8_t ninclpasses
Definition: jpeg2000.h:165
Jpeg2000QuantStyle qntsty
Definition: j2kenc.c:124
static int lut_nmsedec_ref[1<< NMSEDEC_BITS]
Definition: j2kenc.c:82
static av_cold int j2kenc_init(AVCodecContext *avctx)
Definition: j2kenc.c:1101
int size
Definition: avcodec.h:1578
int nb_codeblocks_width
Definition: jpeg2000.h:181
int av_log2(unsigned v)
Definition: intmath.c:26
static int put_com(Jpeg2000EncoderContext *s, int compno)
Definition: j2kenc.c:359
AVCodecContext * avctx
Definition: j2kenc.c:105
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1870
uint16_t mant[JPEG2000_MAX_DECLEVELS *3]
Definition: jpeg2000.h:151
void ff_mqc_initenc(MqcState *mqc, uint8_t *bp)
initialize the encoder
Definition: mqcenc.c:69
static void tag_tree_code(Jpeg2000EncoderContext *s, Jpeg2000TgtNode *node, int threshold)
code the value stored in node
Definition: j2kenc.c:237
static AVPacket pkt
AVCodec.
Definition: avcodec.h:3535
static void tag_tree_update(Jpeg2000TgtNode *node)
update the value in node
Definition: j2kenc.c:265
static void update_size(uint8_t *size, const uint8_t *end)
Definition: j2kenc.c:985
static int getnmsedec_ref(int x, int bpno)
Definition: j2kenc.c:541
uint8_t npasses
Definition: jpeg2000.h:164
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
uint16_t log2_cblk_width
Definition: jpeg2000.h:192
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
uint8_t
#define av_cold
Definition: attributes.h:82
static int lut_nmsedec_ref0[1<< NMSEDEC_BITS]
Definition: j2kenc.c:82
AVOptions.
static int encode_packet(Jpeg2000EncoderContext *s, Jpeg2000ResLevel *rlevel, int precno, uint8_t *expn, int numgbits)
Definition: j2kenc.c:711
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
static const AVClass j2k_class
Definition: j2kenc.c:1195
Jpeg2000TgtNode * zerobits
Definition: jpeg2000.h:183
int64_t disto
Definition: jpeg2000.h:158
Jpeg2000Band * band
Definition: jpeg2000.h:203
uint8_t val
Definition: jpeg2000.h:129
int coord[2][2]
Definition: jpeg2000.h:211
uint8_t * data
Definition: avcodec.h:1577
static void j2k_flush(Jpeg2000EncoderContext *s)
flush the bitstream
Definition: j2kenc.c:226
#define sp
Definition: regdef.h:63
static int init_tiles(Jpeg2000EncoderContext *s)
compute the sizes of tiles, resolution levels, bands, etc.
Definition: j2kenc.c:402
#define JPEG2000_T1_VIS
Definition: jpeg2000.h:95
ptrdiff_t size
Definition: opengl_enc.c:101
#define AV_INPUT_BUFFER_MIN_SIZE
minimum encoding buffer size Used to avoid some checks during header writing.
Definition: avcodec.h:735
uint16_t flags[6156]
Definition: jpeg2000.h:123
#define av_log(a,...)
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1609
uint8_t nonzerobits
Definition: jpeg2000.h:166
uint8_t log2_prec_widths[JPEG2000_MAX_RESLEVELS]
Definition: jpeg2000.h:145
static const uint16_t mask[17]
Definition: lzw.c:38
uint8_t * buf_end
Definition: j2kenc.c:118
#define OFFSET(x)
Definition: j2kenc.c:1180
void ff_jpeg2000_set_significance(Jpeg2000T1Context *t1, int x, int y, int negative)
Definition: jpeg2000.c:171
av_default_item_name
#define AVERROR(e)
Definition: error.h:43
static int put_cod(Jpeg2000EncoderContext *s)
Definition: j2kenc.c:306
int nb_codeblocks_height
Definition: jpeg2000.h:182
#define CODEC_J2K
Definition: j2kenc.c:80
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
uint8_t log2_prec_heights[JPEG2000_MAX_RESLEVELS]
Definition: jpeg2000.h:146
#define t1
Definition: regdef.h:29
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1737
Definition: graph2dot.c:48
static void put_num(Jpeg2000EncoderContext *s, int num, int n)
put n least significant bits of a number num
Definition: j2kenc.c:219
GLsizei GLsizei * length
Definition: opengl_enc.c:115
const char * name
Name of the codec implementation.
Definition: avcodec.h:3542
static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pict, int *got_packet)
Definition: j2kenc.c:990
const AVFrame * picture
Definition: j2kenc.c:106
uint8_t flushed[4]
Definition: jpeg2000.h:159
Jpeg2000Cblk * cblk
Definition: jpeg2000.h:185
#define FFMAX(a, b)
Definition: common.h:94
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1583
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
static int put_siz(Jpeg2000EncoderContext *s)
Definition: j2kenc.c:277
static int lut_nmsedec_sig0[1<< NMSEDEC_BITS]
Definition: j2kenc.c:82
#define JPEG2000_T1_REF
Definition: jpeg2000.h:97
int flushed_len
Definition: jpeg2000.h:160
#define AV_CODEC_FLAG_BITEXACT
Use only bitexact stuff (except (I)DCT).
Definition: avcodec.h:880
static int put_qcd(Jpeg2000EncoderContext *s, int compno)
Definition: j2kenc.c:333
static int getnmsedec_sig(int x, int bpno)
Definition: j2kenc.c:534
int tile_height
tile size
Definition: j2kenc.c:113
#define FFMIN(a, b)
Definition: common.h:96
uint8_t data[8192]
Definition: jpeg2000.h:172
struct Jpeg2000TgtNode * parent
Definition: jpeg2000.h:131
static void encode_sigpass(Jpeg2000T1Context *t1, int width, int height, int bandno, int *nmsedec, int bpno)
Definition: j2kenc.c:548
int width
picture width / height.
Definition: avcodec.h:1829
JPEG 2000 structures and defines common to encoder and decoder.
int i_stepsize
Definition: jpeg2000.h:193
#define width
static int j2kenc_destroy(AVCodecContext *avctx)
Definition: j2kenc.c:1170
#define MQC_CX_RL
Definition: mqc.h:34
#define CODEC_JP2
Definition: j2kenc.c:79
static int ff_jpeg2000_getsigctxno(int flag, int bandno)
Definition: jpeg2000.h:240
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:290
int n
Definition: avisynth_c.h:547
uint8_t cbps[4]
bits per sample in particular components
Definition: j2kenc.c:109
int ff_dwt_encode(DWTContext *s, void *t)
Definition: jpeg2000dwt.c:581
void avcodec_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
Utility function to access log2_chroma_w log2_chroma_h from the pixel format AVPixFmtDescriptor.
Definition: imgconvert.c:38
int coord[2][2]
Definition: jpeg2000.h:200
static int encode_tile(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile, int tileno)
Definition: j2kenc.c:879
static int ff_jpeg2000_ceildivpow2(int a, int b)
Definition: jpeg2000.h:216
static const float pred[4]
Definition: siprdata.h:259
int coord[2][2]
Definition: jpeg2000.h:191
int coord_o[2][2]
Definition: jpeg2000.h:212
Libavcodec external API header.
static void encode_refpass(Jpeg2000T1Context *t1, int width, int height, int *nmsedec, int bpno)
Definition: j2kenc.c:570
attribute_deprecated int prediction_method
Definition: avcodec.h:2033
uint8_t * buf_start
Definition: j2kenc.c:116
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:211
#define ss
Jpeg2000CodingStyle codsty
Definition: j2kenc.c:123
main external API structure.
Definition: avcodec.h:1642
static const char * format
Definition: movenc-test.c:47
uint8_t vis
Definition: jpeg2000.h:130
void av_cold ff_mqc_init_context_tables(void)
MQ-coder Initialize context tables (QE, NLPS, NMPS)
Definition: mqc.c:97
static void init_luts(void)
Definition: j2kenc.c:516
static void encode_cblk(Jpeg2000EncoderContext *s, Jpeg2000T1Context *t1, Jpeg2000Cblk *cblk, Jpeg2000Tile *tile, int width, int height, int bandpos, int lev)
Definition: j2kenc.c:639
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
Jpeg2000Pass passes[JPEG2000_MAX_PASSES]
Definition: jpeg2000.h:176
Describe the class of an AVClass context structure.
Definition: log.h:67
static const AVOption options[]
Definition: j2kenc.c:1182
#define AV_WB32(p, v)
Definition: intreadwrite.h:419
uint8_t nbands
Definition: jpeg2000.h:199
#define JPEG2000_T1_SGN
Definition: jpeg2000.h:99
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
Check AVPacket size and/or allocate data.
Definition: utils.c:1683
int height
image width and height
Definition: j2kenc.c:108
Jpeg2000ResLevel * reslevel
Definition: jpeg2000.h:207
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:262
static int ff_jpeg2000_ceildiv(int a, int b)
Definition: jpeg2000.h:221
Jpeg2000Component * comp
Definition: j2kenc.c:100
void ff_jpeg2000_reinit(Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty)
Definition: jpeg2000.c:555
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:194
uint8_t expn[JPEG2000_MAX_DECLEVELS *3]
Definition: jpeg2000.h:150
static void reinit(Jpeg2000EncoderContext *s)
Definition: j2kenc.c:975
static uint8_t * put_sot(Jpeg2000EncoderContext *s, int tileno)
Definition: j2kenc.c:378
Jpeg2000Tile * tile
Definition: j2kenc.c:126
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
Y , 8bpp.
Definition: pixfmt.h:70
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:80
uint8_t quantsty
Definition: jpeg2000.h:152
common internal api header.
common internal and external API header
if(ret< 0)
Definition: vf_mcdeint.c:282
uint8_t log2_cblk_width
Definition: jpeg2000.h:137
static void copy_frame(Jpeg2000EncoderContext *s)
Definition: j2kenc.c:448
#define LAMBDA_SCALE
Definition: j2kenc.c:77
int data[6144]
Definition: jpeg2000.h:122
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:69
uint16_t log2_cblk_height
Definition: jpeg2000.h:192
#define VE
Definition: j2kenc.c:1181
static av_always_inline void bytestream_put_buffer(uint8_t **b, const uint8_t *src, unsigned int size)
Definition: bytestream.h:368
#define MQC_CX_UNI
Definition: mqc.h:33
void * priv_data
Definition: avcodec.h:1684
int ff_jpeg2000_init_component(Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty, Jpeg2000QuantStyle *qntsty, int cbps, int dx, int dy, AVCodecContext *avctx)
Definition: jpeg2000.c:448
uint16_t rate
Definition: jpeg2000.h:157
static void putnumpasses(Jpeg2000EncoderContext *s, int n)
Definition: j2kenc.c:696
int ff_mqc_flush_to(MqcState *mqc, uint8_t *dst, int *dst_len)
Definition: mqcenc.c:122
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:81
static void truncpasses(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile)
Definition: j2kenc.c:850
Jpeg2000Prec * prec
Definition: jpeg2000.h:195
static void encode_clnpass(Jpeg2000T1Context *t1, int width, int height, int bandno, int *nmsedec, int bpno)
Definition: j2kenc.c:584
#define JPEG2000_T1_SIG
Definition: jpeg2000.h:96
static int lut_nmsedec_sig[1<< NMSEDEC_BITS]
Definition: j2kenc.c:82
#define LIBAVCODEC_IDENT
Definition: version.h:42
static void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.h:229
#define av_freep(p)
static void comp(unsigned char *dst, int dst_stride, unsigned char *src, int src_stride, int add)
Definition: eamad.c:83
MqcState mqc
Definition: jpeg2000.h:124
static int ff_jpeg2000_getrefctxno(int flag)
Definition: jpeg2000.h:249
uint8_t log2_cblk_height
Definition: jpeg2000.h:137
#define av_malloc_array(a, b)
#define height
#define NMSEDEC_FRACBITS
Definition: j2kenc.c:75
static void init_quantization(Jpeg2000EncoderContext *s)
Definition: j2kenc.c:486
static const int dwt_norms[2][4][10]
Definition: j2kenc.c:87
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
This structure stores compressed data.
Definition: avcodec.h:1554
for(j=16;j >0;--j)
uint8_t cx_states[19]
Definition: mqc.h:45
#define WMSEDEC_SHIFT
must be >= 13
Definition: j2kenc.c:76
static int encode_packets(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile, int tileno)
Definition: j2kenc.c:809
static int ff_jpeg2000_getsgnctxno(int flag, int *xorbit)
Definition: jpeg2000.h:258
void ff_mqc_encode(MqcState *mqc, uint8_t *cxstate, int d)
code bit d with context cx
Definition: mqcenc.c:79