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jpeg2000.c
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1 /*
2  * JPEG 2000 encoder and decoder common functions
3  * Copyright (c) 2007 Kamil Nowosad
4  * Copyright (c) 2013 Nicolas Bertrand <nicoinattendu@gmail.com>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * JPEG 2000 image encoder and decoder common functions
26  */
27 
28 #include "libavutil/attributes.h"
29 #include "libavutil/avassert.h"
30 #include "libavutil/common.h"
31 #include "libavutil/mem.h"
32 #include "avcodec.h"
33 #include "jpeg2000.h"
34 
35 #define SHL(a, n) ((n) >= 0 ? (a) << (n) : (a) >> -(n))
36 
37 /* tag tree routines */
38 
39 /* allocate the memory for tag tree */
40 static int32_t tag_tree_size(uint16_t w, uint16_t h)
41 {
42  uint32_t res = 0;
43  while (w > 1 || h > 1) {
44  res += w * h;
45  av_assert0(res + 1 < INT32_MAX);
46  w = (w + 1) >> 1;
47  h = (h + 1) >> 1;
48  }
49  return (int32_t)(res + 1);
50 }
51 
53 {
54  int pw = w, ph = h;
55  Jpeg2000TgtNode *res, *t, *t2;
56  int32_t tt_size;
57 
58  tt_size = tag_tree_size(w, h);
59 
60  t = res = av_mallocz_array(tt_size, sizeof(*t));
61  if (!res)
62  return NULL;
63 
64  while (w > 1 || h > 1) {
65  int i, j;
66  pw = w;
67  ph = h;
68 
69  w = (w + 1) >> 1;
70  h = (h + 1) >> 1;
71  t2 = t + pw * ph;
72 
73  for (i = 0; i < ph; i++)
74  for (j = 0; j < pw; j++)
75  t[i * pw + j].parent = &t2[(i >> 1) * w + (j >> 1)];
76 
77  t = t2;
78  }
79  t[0].parent = NULL;
80  return res;
81 }
82 
83 static void tag_tree_zero(Jpeg2000TgtNode *t, int w, int h)
84 {
85  int i, siz = tag_tree_size(w, h);
86 
87  for (i = 0; i < siz; i++) {
88  t[i].val = 0;
89  t[i].vis = 0;
90  }
91 }
92 
94 
95 static int getsigctxno(int flag, int bandno)
96 {
97  int h, v, d;
98 
99  h = ((flag & JPEG2000_T1_SIG_E) ? 1 : 0) +
100  ((flag & JPEG2000_T1_SIG_W) ? 1 : 0);
101  v = ((flag & JPEG2000_T1_SIG_N) ? 1 : 0) +
102  ((flag & JPEG2000_T1_SIG_S) ? 1 : 0);
103  d = ((flag & JPEG2000_T1_SIG_NE) ? 1 : 0) +
104  ((flag & JPEG2000_T1_SIG_NW) ? 1 : 0) +
105  ((flag & JPEG2000_T1_SIG_SE) ? 1 : 0) +
106  ((flag & JPEG2000_T1_SIG_SW) ? 1 : 0);
107 
108  if (bandno < 3) {
109  if (bandno == 1)
110  FFSWAP(int, h, v);
111  if (h == 2) return 8;
112  if (h == 1) {
113  if (v >= 1) return 7;
114  if (d >= 1) return 6;
115  return 5;
116  }
117  if (v == 2) return 4;
118  if (v == 1) return 3;
119  if (d >= 2) return 2;
120  if (d == 1) return 1;
121  } else {
122  if (d >= 3) return 8;
123  if (d == 2) {
124  if (h+v >= 1) return 7;
125  return 6;
126  }
127  if (d == 1) {
128  if (h+v >= 2) return 5;
129  if (h+v == 1) return 4;
130  return 3;
131  }
132  if (h+v >= 2) return 2;
133  if (h+v == 1) return 1;
134  }
135  return 0;
136 }
137 
139 
140 static const int contribtab[3][3] = { { 0, -1, 1 }, { -1, -1, 0 }, { 1, 0, 1 } };
141 static const int ctxlbltab[3][3] = { { 13, 12, 11 }, { 10, 9, 10 }, { 11, 12, 13 } };
142 static const int xorbittab[3][3] = { { 1, 1, 1 }, { 1, 0, 0 }, { 0, 0, 0 } };
143 
144 static int getsgnctxno(int flag, uint8_t *xorbit)
145 {
146  int vcontrib, hcontrib;
147 
148  hcontrib = contribtab[flag & JPEG2000_T1_SIG_E ? flag & JPEG2000_T1_SGN_E ? 1 : 2 : 0]
149  [flag & JPEG2000_T1_SIG_W ? flag & JPEG2000_T1_SGN_W ? 1 : 2 : 0] + 1;
150  vcontrib = contribtab[flag & JPEG2000_T1_SIG_S ? flag & JPEG2000_T1_SGN_S ? 1 : 2 : 0]
151  [flag & JPEG2000_T1_SIG_N ? flag & JPEG2000_T1_SGN_N ? 1 : 2 : 0] + 1;
152  *xorbit = xorbittab[hcontrib][vcontrib];
153 
154  return ctxlbltab[hcontrib][vcontrib];
155 }
156 
158 {
159  int i, j;
160  for (i = 0; i < 256; i++)
161  for (j = 0; j < 4; j++)
163  for (i = 0; i < 16; i++)
164  for (j = 0; j < 16; j++)
166  getsgnctxno(i + (j << 8), &ff_jpeg2000_xorbit_lut[i][j]);
167 }
168 
170  int negative)
171 {
172  x++;
173  y++;
174  t1->flags[(y) * t1->stride + x] |= JPEG2000_T1_SIG;
175  if (negative) {
176  t1->flags[(y) * t1->stride + x + 1] |= JPEG2000_T1_SIG_W | JPEG2000_T1_SGN_W;
177  t1->flags[(y) * t1->stride + x - 1] |= JPEG2000_T1_SIG_E | JPEG2000_T1_SGN_E;
178  t1->flags[(y + 1) * t1->stride + x] |= JPEG2000_T1_SIG_N | JPEG2000_T1_SGN_N;
179  t1->flags[(y - 1) * t1->stride + x] |= JPEG2000_T1_SIG_S | JPEG2000_T1_SGN_S;
180  } else {
181  t1->flags[(y) * t1->stride + x + 1] |= JPEG2000_T1_SIG_W;
182  t1->flags[(y) * t1->stride + x - 1] |= JPEG2000_T1_SIG_E;
183  t1->flags[(y + 1) * t1->stride + x] |= JPEG2000_T1_SIG_N;
184  t1->flags[(y - 1) * t1->stride + x] |= JPEG2000_T1_SIG_S;
185  }
186  t1->flags[(y + 1) * t1->stride + x + 1] |= JPEG2000_T1_SIG_NW;
187  t1->flags[(y + 1) * t1->stride + x - 1] |= JPEG2000_T1_SIG_NE;
188  t1->flags[(y - 1) * t1->stride + x + 1] |= JPEG2000_T1_SIG_SW;
189  t1->flags[(y - 1) * t1->stride + x - 1] |= JPEG2000_T1_SIG_SE;
190 }
191 
192 // static const uint8_t lut_gain[2][4] = { { 0, 0, 0, 0 }, { 0, 1, 1, 2 } }; (unused)
193 
195  Jpeg2000CodingStyle *codsty,
196  Jpeg2000QuantStyle *qntsty,
197  int cbps, int dx, int dy,
198  AVCodecContext *avctx)
199 {
200  uint8_t log2_band_prec_width, log2_band_prec_height;
201  int reslevelno, bandno, gbandno = 0, ret, i, j;
202  uint32_t csize;
203 
204  if (codsty->nreslevels2decode <= 0) {
205  av_log(avctx, AV_LOG_ERROR, "nreslevels2decode %d invalid or uninitialized\n", codsty->nreslevels2decode);
206  return AVERROR_INVALIDDATA;
207  }
208 
209  if (ret = ff_jpeg2000_dwt_init(&comp->dwt, comp->coord,
210  codsty->nreslevels2decode - 1,
211  codsty->transform))
212  return ret;
213  // component size comp->coord is uint16_t so ir cannot overflow
214  csize = (comp->coord[0][1] - comp->coord[0][0]) *
215  (comp->coord[1][1] - comp->coord[1][0]);
216 
217  if (codsty->transform == FF_DWT97) {
218  csize += AV_INPUT_BUFFER_PADDING_SIZE / sizeof(*comp->f_data);
219  comp->i_data = NULL;
220  comp->f_data = av_mallocz_array(csize, sizeof(*comp->f_data));
221  if (!comp->f_data)
222  return AVERROR(ENOMEM);
223  } else {
224  csize += AV_INPUT_BUFFER_PADDING_SIZE / sizeof(*comp->i_data);
225  comp->f_data = NULL;
226  comp->i_data = av_mallocz_array(csize, sizeof(*comp->i_data));
227  if (!comp->i_data)
228  return AVERROR(ENOMEM);
229  }
230  comp->reslevel = av_mallocz_array(codsty->nreslevels, sizeof(*comp->reslevel));
231  if (!comp->reslevel)
232  return AVERROR(ENOMEM);
233  /* LOOP on resolution levels */
234  for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) {
235  int declvl = codsty->nreslevels - reslevelno; // N_L -r see ISO/IEC 15444-1:2002 B.5
236  Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
237 
238  /* Compute borders for each resolution level.
239  * Computation of trx_0, trx_1, try_0 and try_1.
240  * see ISO/IEC 15444-1:2002 eq. B.5 and B-14 */
241  for (i = 0; i < 2; i++)
242  for (j = 0; j < 2; j++)
243  reslevel->coord[i][j] =
244  ff_jpeg2000_ceildivpow2(comp->coord_o[i][j], declvl - 1);
245  // update precincts size: 2^n value
246  reslevel->log2_prec_width = codsty->log2_prec_widths[reslevelno];
247  reslevel->log2_prec_height = codsty->log2_prec_heights[reslevelno];
248 
249  /* Number of bands for each resolution level */
250  if (reslevelno == 0)
251  reslevel->nbands = 1;
252  else
253  reslevel->nbands = 3;
254 
255  /* Number of precincts which span the tile for resolution level reslevelno
256  * see B.6 in ISO/IEC 15444-1:2002 eq. B-16
257  * num_precincts_x = |- trx_1 / 2 ^ log2_prec_width) -| - (trx_0 / 2 ^ log2_prec_width)
258  * num_precincts_y = |- try_1 / 2 ^ log2_prec_width) -| - (try_0 / 2 ^ log2_prec_width)
259  * for Dcinema profiles in JPEG 2000
260  * num_precincts_x = |- trx_1 / 2 ^ log2_prec_width) -|
261  * num_precincts_y = |- try_1 / 2 ^ log2_prec_width) -| */
262  if (reslevel->coord[0][1] == reslevel->coord[0][0])
263  reslevel->num_precincts_x = 0;
264  else
265  reslevel->num_precincts_x =
266  ff_jpeg2000_ceildivpow2(reslevel->coord[0][1],
267  reslevel->log2_prec_width) -
268  (reslevel->coord[0][0] >> reslevel->log2_prec_width);
269 
270  if (reslevel->coord[1][1] == reslevel->coord[1][0])
271  reslevel->num_precincts_y = 0;
272  else
273  reslevel->num_precincts_y =
274  ff_jpeg2000_ceildivpow2(reslevel->coord[1][1],
275  reslevel->log2_prec_height) -
276  (reslevel->coord[1][0] >> reslevel->log2_prec_height);
277 
278  reslevel->band = av_mallocz_array(reslevel->nbands, sizeof(*reslevel->band));
279  if (!reslevel->band)
280  return AVERROR(ENOMEM);
281 
282  for (bandno = 0; bandno < reslevel->nbands; bandno++, gbandno++) {
283  Jpeg2000Band *band = reslevel->band + bandno;
284  int cblkno, precno;
285  int nb_precincts;
286 
287  /* TODO: Implementation of quantization step not finished,
288  * see ISO/IEC 15444-1:2002 E.1 and A.6.4. */
289  switch (qntsty->quantsty) {
290  uint8_t gain;
291  case JPEG2000_QSTY_NONE:
292  /* TODO: to verify. No quantization in this case */
293  band->f_stepsize = 1;
294  break;
295  case JPEG2000_QSTY_SI:
296  /*TODO: Compute formula to implement. */
297 // numbps = cbps +
298 // lut_gain[codsty->transform == FF_DWT53][bandno + (reslevelno > 0)];
299 // band->f_stepsize = SHL(2048 + qntsty->mant[gbandno],
300 // 2 + numbps - qntsty->expn[gbandno]);
301 // break;
302  case JPEG2000_QSTY_SE:
303  /* Exponent quantization step.
304  * Formula:
305  * delta_b = 2 ^ (R_b - expn_b) * (1 + (mant_b / 2 ^ 11))
306  * R_b = R_I + log2 (gain_b )
307  * see ISO/IEC 15444-1:2002 E.1.1 eqn. E-3 and E-4 */
308  gain = cbps;
309  band->f_stepsize = pow(2.0, gain - qntsty->expn[gbandno]);
310  band->f_stepsize *= qntsty->mant[gbandno] / 2048.0 + 1.0;
311  break;
312  default:
313  band->f_stepsize = 0;
314  av_log(avctx, AV_LOG_ERROR, "Unknown quantization format\n");
315  break;
316  }
317  if (codsty->transform != FF_DWT53) {
318  int lband = 0;
319  switch (bandno + (reslevelno > 0)) {
320  case 1:
321  case 2:
322  band->f_stepsize *= F_LFTG_X * 2;
323  lband = 1;
324  break;
325  case 3:
326  band->f_stepsize *= F_LFTG_X * F_LFTG_X * 4;
327  break;
328  }
329  if (codsty->transform == FF_DWT97) {
330  band->f_stepsize *= pow(F_LFTG_K, 2*(codsty->nreslevels2decode - reslevelno) + lband - 2);
331  }
332  }
333 
334  band->i_stepsize = band->f_stepsize * (1 << 15);
335 
336  /* FIXME: In openjepg code stespize = stepsize * 0.5. Why?
337  * If not set output of entropic decoder is not correct. */
338  if (!av_codec_is_encoder(avctx->codec))
339  band->f_stepsize *= 0.5;
340 
341  /* computation of tbx_0, tbx_1, tby_0, tby_1
342  * see ISO/IEC 15444-1:2002 B.5 eq. B-15 and tbl B.1
343  * codeblock width and height is computed for
344  * DCI JPEG 2000 codeblock_width = codeblock_width = 32 = 2 ^ 5 */
345  if (reslevelno == 0) {
346  /* for reslevelno = 0, only one band, x0_b = y0_b = 0 */
347  for (i = 0; i < 2; i++)
348  for (j = 0; j < 2; j++)
349  band->coord[i][j] =
350  ff_jpeg2000_ceildivpow2(comp->coord_o[i][j],
351  declvl - 1);
352  log2_band_prec_width = reslevel->log2_prec_width;
353  log2_band_prec_height = reslevel->log2_prec_height;
354  /* see ISO/IEC 15444-1:2002 eq. B-17 and eq. B-15 */
355  band->log2_cblk_width = FFMIN(codsty->log2_cblk_width,
356  reslevel->log2_prec_width);
357  band->log2_cblk_height = FFMIN(codsty->log2_cblk_height,
358  reslevel->log2_prec_height);
359  } else {
360  /* 3 bands x0_b = 1 y0_b = 0; x0_b = 0 y0_b = 1; x0_b = y0_b = 1 */
361  /* x0_b and y0_b are computed with ((bandno + 1 >> i) & 1) */
362  for (i = 0; i < 2; i++)
363  for (j = 0; j < 2; j++)
364  /* Formula example for tbx_0 = ceildiv((tcx_0 - 2 ^ (declvl - 1) * x0_b) / declvl) */
365  band->coord[i][j] =
366  ff_jpeg2000_ceildivpow2(comp->coord_o[i][j] -
367  (((bandno + 1 >> i) & 1LL) << declvl - 1),
368  declvl);
369  /* TODO: Manage case of 3 band offsets here or
370  * in coding/decoding function? */
371 
372  /* see ISO/IEC 15444-1:2002 eq. B-17 and eq. B-15 */
373  band->log2_cblk_width = FFMIN(codsty->log2_cblk_width,
374  reslevel->log2_prec_width - 1);
375  band->log2_cblk_height = FFMIN(codsty->log2_cblk_height,
376  reslevel->log2_prec_height - 1);
377 
378  log2_band_prec_width = reslevel->log2_prec_width - 1;
379  log2_band_prec_height = reslevel->log2_prec_height - 1;
380  }
381 
382  if (reslevel->num_precincts_x * (uint64_t)reslevel->num_precincts_y > INT_MAX) {
383  band->prec = NULL;
384  return AVERROR(ENOMEM);
385  }
386  nb_precincts = reslevel->num_precincts_x * reslevel->num_precincts_y;
387  band->prec = av_mallocz_array(nb_precincts, sizeof(*band->prec));
388  if (!band->prec)
389  return AVERROR(ENOMEM);
390 
391  for (precno = 0; precno < nb_precincts; precno++) {
392  Jpeg2000Prec *prec = band->prec + precno;
393  int nb_codeblocks;
394 
395  prec->decoded_layers = 0;
396 
397  /* TODO: Explain formula for JPEG200 DCINEMA. */
398  /* TODO: Verify with previous count of codeblocks per band */
399 
400  /* Compute P_x0 */
401  prec->coord[0][0] = ((band->coord[0][0] >> log2_band_prec_width) + precno % reslevel->num_precincts_x) *
402  (1 << log2_band_prec_width);
403 
404  /* Compute P_y0 */
405  prec->coord[1][0] = ((band->coord[1][0] >> log2_band_prec_height) + precno / reslevel->num_precincts_x) *
406  (1 << log2_band_prec_height);
407 
408  /* Compute P_x1 */
409  prec->coord[0][1] = prec->coord[0][0] +
410  (1 << log2_band_prec_width);
411  prec->coord[0][0] = FFMAX(prec->coord[0][0], band->coord[0][0]);
412  prec->coord[0][1] = FFMIN(prec->coord[0][1], band->coord[0][1]);
413 
414  /* Compute P_y1 */
415  prec->coord[1][1] = prec->coord[1][0] +
416  (1 << log2_band_prec_height);
417  prec->coord[1][0] = FFMAX(prec->coord[1][0], band->coord[1][0]);
418  prec->coord[1][1] = FFMIN(prec->coord[1][1], band->coord[1][1]);
419 
420  prec->nb_codeblocks_width =
421  ff_jpeg2000_ceildivpow2(prec->coord[0][1],
422  band->log2_cblk_width)
423  - (prec->coord[0][0] >> band->log2_cblk_width);
424  prec->nb_codeblocks_height =
425  ff_jpeg2000_ceildivpow2(prec->coord[1][1],
426  band->log2_cblk_height)
427  - (prec->coord[1][0] >> band->log2_cblk_height);
428 
429 
430  /* Tag trees initialization */
431  prec->cblkincl =
433  prec->nb_codeblocks_height);
434  if (!prec->cblkincl)
435  return AVERROR(ENOMEM);
436 
437  prec->zerobits =
439  prec->nb_codeblocks_height);
440  if (!prec->zerobits)
441  return AVERROR(ENOMEM);
442 
443  if (prec->nb_codeblocks_width * (uint64_t)prec->nb_codeblocks_height > INT_MAX) {
444  prec->cblk = NULL;
445  return AVERROR(ENOMEM);
446  }
447  nb_codeblocks = prec->nb_codeblocks_width * prec->nb_codeblocks_height;
448  prec->cblk = av_mallocz_array(nb_codeblocks, sizeof(*prec->cblk));
449  if (!prec->cblk)
450  return AVERROR(ENOMEM);
451  for (cblkno = 0; cblkno < nb_codeblocks; cblkno++) {
452  Jpeg2000Cblk *cblk = prec->cblk + cblkno;
453  uint16_t Cx0, Cy0;
454 
455  /* Compute coordinates of codeblocks */
456  /* Compute Cx0*/
457  Cx0 = ((prec->coord[0][0]) >> band->log2_cblk_width) << band->log2_cblk_width;
458  Cx0 = Cx0 + ((cblkno % prec->nb_codeblocks_width) << band->log2_cblk_width);
459  cblk->coord[0][0] = FFMAX(Cx0, prec->coord[0][0]);
460 
461  /* Compute Cy0*/
462  Cy0 = ((prec->coord[1][0]) >> band->log2_cblk_height) << band->log2_cblk_height;
463  Cy0 = Cy0 + ((cblkno / prec->nb_codeblocks_width) << band->log2_cblk_height);
464  cblk->coord[1][0] = FFMAX(Cy0, prec->coord[1][0]);
465 
466  /* Compute Cx1 */
467  cblk->coord[0][1] = FFMIN(Cx0 + (1 << band->log2_cblk_width),
468  prec->coord[0][1]);
469 
470  /* Compute Cy1 */
471  cblk->coord[1][1] = FFMIN(Cy0 + (1 << band->log2_cblk_height),
472  prec->coord[1][1]);
473  /* Update code-blocks coordinates according sub-band position */
474  if ((bandno + !!reslevelno) & 1) {
475  cblk->coord[0][0] += comp->reslevel[reslevelno-1].coord[0][1] -
476  comp->reslevel[reslevelno-1].coord[0][0];
477  cblk->coord[0][1] += comp->reslevel[reslevelno-1].coord[0][1] -
478  comp->reslevel[reslevelno-1].coord[0][0];
479  }
480  if ((bandno + !!reslevelno) & 2) {
481  cblk->coord[1][0] += comp->reslevel[reslevelno-1].coord[1][1] -
482  comp->reslevel[reslevelno-1].coord[1][0];
483  cblk->coord[1][1] += comp->reslevel[reslevelno-1].coord[1][1] -
484  comp->reslevel[reslevelno-1].coord[1][0];
485  }
486 
487  cblk->zero = 0;
488  cblk->lblock = 3;
489  cblk->length = 0;
490  memset(cblk->lengthinc, 0, sizeof(cblk->lengthinc));
491  cblk->npasses = 0;
492  }
493  }
494  }
495  }
496  return 0;
497 }
498 
500 {
501  int reslevelno, bandno, cblkno, precno;
502  for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) {
503  Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno;
504  for (bandno = 0; bandno < rlevel->nbands; bandno++) {
505  Jpeg2000Band *band = rlevel->band + bandno;
506  for(precno = 0; precno < rlevel->num_precincts_x * rlevel->num_precincts_y; precno++) {
507  Jpeg2000Prec *prec = band->prec + precno;
510  for (cblkno = 0; cblkno < prec->nb_codeblocks_width * prec->nb_codeblocks_height; cblkno++) {
511  Jpeg2000Cblk *cblk = prec->cblk + cblkno;
512  cblk->length = 0;
513  cblk->lblock = 3;
514  }
515  }
516  }
517  }
518 }
519 
521 {
522  int reslevelno, bandno, precno;
523  for (reslevelno = 0;
524  comp->reslevel && reslevelno < codsty->nreslevels;
525  reslevelno++) {
526  Jpeg2000ResLevel *reslevel;
527 
528  if (!comp->reslevel)
529  continue;
530 
531  reslevel = comp->reslevel + reslevelno;
532  for (bandno = 0; bandno < reslevel->nbands; bandno++) {
534 
535  if (!reslevel->band)
536  continue;
537 
538  band = reslevel->band + bandno;
539  for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++) {
540  if (band->prec) {
541  Jpeg2000Prec *prec = band->prec + precno;
542  av_freep(&prec->zerobits);
543  av_freep(&prec->cblkincl);
544  av_freep(&prec->cblk);
545  }
546  }
547 
548  av_freep(&band->prec);
549  }
550  av_freep(&reslevel->band);
551  }
552 
553  ff_dwt_destroy(&comp->dwt);
554  av_freep(&comp->reslevel);
555  av_freep(&comp->i_data);
556  av_freep(&comp->f_data);
557 }
uint8_t ff_jpeg2000_sgnctxno_lut[16][16]
Definition: jpeg2000.c:138
uint16_t coord[2][2]
Definition: jpeg2000.h:187
#define NULL
Definition: coverity.c:32
const struct AVCodec * codec
Definition: avcodec.h:1510
float v
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
void av_cold ff_jpeg2000_init_tier1_luts(void)
Definition: jpeg2000.c:157
void ff_jpeg2000_cleanup(Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty)
Definition: jpeg2000.c:520
DWTContext dwt
Definition: jpeg2000.h:208
Jpeg2000TgtNode * cblkincl
Definition: jpeg2000.h:184
memory handling functions
float * f_data
Definition: jpeg2000.h:209
uint16_t mant[JPEG2000_MAX_DECLEVELS *3]
Definition: jpeg2000.h:151
static const int contribtab[3][3]
Definition: jpeg2000.c:140
static const int xorbittab[3][3]
Definition: jpeg2000.c:142
static void tag_tree_zero(Jpeg2000TgtNode *t, int w, int h)
Definition: jpeg2000.c:83
float f_stepsize
Definition: jpeg2000.h:194
uint16_t nb_codeblocks_height
Definition: jpeg2000.h:182
static Jpeg2000TgtNode * ff_jpeg2000_tag_tree_init(int w, int h)
Definition: jpeg2000.c:52
Macro definitions for various function/variable attributes.
uint8_t npasses
Definition: jpeg2000.h:164
int av_codec_is_encoder(const AVCodec *codec)
Definition: utils.c:174
#define JPEG2000_T1_SIG_W
Definition: jpeg2000.h:79
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:74
Jpeg2000TgtNode * zerobits
Definition: jpeg2000.h:183
int ff_jpeg2000_dwt_init(DWTContext *s, uint16_t border[2][2], int decomp_levels, int type)
Initialize DWT.
Definition: jpeg2000dwt.c:537
Jpeg2000Band * band
Definition: jpeg2000.h:203
uint8_t val
Definition: jpeg2000.h:129
#define JPEG2000_T1_SIG_NE
Definition: jpeg2000.h:81
uint16_t num_precincts_x
Definition: jpeg2000.h:201
#define JPEG2000_T1_SIG_SE
Definition: jpeg2000.h:83
static const int ctxlbltab[3][3]
Definition: jpeg2000.c:141
uint16_t flags[6156]
Definition: jpeg2000.h:123
#define av_log(a,...)
int flag
Definition: checkasm.c:76
uint8_t log2_prec_widths[JPEG2000_MAX_RESLEVELS]
Definition: jpeg2000.h:145
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
void ff_jpeg2000_set_significance(Jpeg2000T1Context *t1, int x, int y, int negative)
Definition: jpeg2000.c:169
#define F_LFTG_X
Definition: jpeg2000dwt.h:34
#define AVERROR(e)
Definition: error.h:43
uint8_t log2_prec_heights[JPEG2000_MAX_RESLEVELS]
Definition: jpeg2000.h:146
#define t1
Definition: regdef.h:29
simple assert() macros that are a bit more flexible than ISO C assert().
uint8_t zero
Definition: jpeg2000.h:171
Jpeg2000Cblk * cblk
Definition: jpeg2000.h:185
#define FFMAX(a, b)
Definition: common.h:64
Libavcodec external API header.
uint8_t lblock
Definition: jpeg2000.h:170
#define FFMIN(a, b)
Definition: common.h:66
struct Jpeg2000TgtNode * parent
Definition: jpeg2000.h:131
float y
#define JPEG2000_T1_SGN_S
Definition: jpeg2000.h:91
JPEG 2000 structures and defines common to encoder and decoder.
int i_stepsize
Definition: jpeg2000.h:193
void ff_dwt_destroy(DWTContext *s)
Definition: jpeg2000dwt.c:614
int32_t
uint16_t num_precincts_y
Definition: jpeg2000.h:201
#define JPEG2000_T1_SIG_N
Definition: jpeg2000.h:77
uint16_t lengthinc[JPEG2000_MAX_PASSES]
Definition: jpeg2000.h:168
static int ff_jpeg2000_ceildivpow2(int a, int b)
Definition: jpeg2000.h:216
uint16_t coord[2][2]
Definition: jpeg2000.h:191
uint16_t coord[2][2]
Definition: jpeg2000.h:177
main external API structure.
Definition: avcodec.h:1501
uint8_t vis
Definition: jpeg2000.h:130
uint8_t log2_prec_height
Definition: jpeg2000.h:202
uint16_t length
Definition: jpeg2000.h:167
uint8_t nbands
Definition: jpeg2000.h:199
uint16_t nb_codeblocks_width
Definition: jpeg2000.h:181
int decoded_layers
Definition: jpeg2000.h:186
uint16_t coord[2][2]
Definition: jpeg2000.h:211
#define JPEG2000_T1_SIG_S
Definition: jpeg2000.h:80
Jpeg2000ResLevel * reslevel
Definition: jpeg2000.h:207
void ff_jpeg2000_reinit(Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty)
Definition: jpeg2000.c:499
#define JPEG2000_T1_SGN_E
Definition: jpeg2000.h:93
uint8_t expn[JPEG2000_MAX_DECLEVELS *3]
Definition: jpeg2000.h:150
uint8_t quantsty
Definition: jpeg2000.h:152
common internal and external API header
if(ret< 0)
Definition: vf_mcdeint.c:280
uint8_t log2_cblk_width
Definition: jpeg2000.h:137
#define F_LFTG_K
Definition: jpeg2000dwt.h:33
uint16_t coord_o[2][2]
Definition: jpeg2000.h:212
uint16_t log2_cblk_height
Definition: jpeg2000.h:192
static int32_t tag_tree_size(uint16_t w, uint16_t h)
Definition: jpeg2000.c:40
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:635
int ff_jpeg2000_init_component(Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty, Jpeg2000QuantStyle *qntsty, int cbps, int dx, int dy, AVCodecContext *avctx)
Definition: jpeg2000.c:194
#define JPEG2000_T1_SIG_SW
Definition: jpeg2000.h:84
uint16_t coord[2][2]
Definition: jpeg2000.h:200
#define JPEG2000_T1_SGN_N
Definition: jpeg2000.h:90
static int getsgnctxno(int flag, uint8_t *xorbit)
Definition: jpeg2000.c:144
#define JPEG2000_T1_SIG_E
Definition: jpeg2000.h:78
Jpeg2000Prec * prec
Definition: jpeg2000.h:195
#define JPEG2000_T1_SIG
Definition: jpeg2000.h:96
static void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.h:228
#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
static int getsigctxno(int flag, int bandno)
Definition: jpeg2000.c:95
uint8_t log2_cblk_height
Definition: jpeg2000.h:137
#define FFSWAP(type, a, b)
Definition: common.h:69
uint8_t ff_jpeg2000_sigctxno_lut[256][4]
Definition: jpeg2000.c:93
uint8_t log2_prec_width
Definition: jpeg2000.h:202
#define JPEG2000_T1_SIG_NW
Definition: jpeg2000.h:82
#define JPEG2000_T1_SGN_W
Definition: jpeg2000.h:92
#define t2
Definition: regdef.h:30
uint8_t ff_jpeg2000_xorbit_lut[16][16]
Definition: jpeg2000.c:138