FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/j2kenc.c
Date: 2026-09-07 16:33:34
Exec Total Coverage
Lines: 667 999 66.8%
Functions: 35 37 94.6%
Branches: 381 692 55.1%

Line Branch Exec Source
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 * Copyright (c) 2020, Gautam Ramakrishnan <gautamramk@gmail.com>
36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 *
47 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
48 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
50 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
51 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
52 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
53 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
54 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
55 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
56 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
57 * POSSIBILITY OF SUCH DAMAGE.
58 */
59
60
61 /**
62 * JPEG2000 image encoder
63 * @file
64 * @author Kamil Nowosad
65 */
66
67 #include <float.h>
68 #include "avcodec.h"
69 #include "codec_internal.h"
70 #include "encode.h"
71 #include "bytestream.h"
72 #include "jpeg2000.h"
73 #include "version.h"
74 #include "libavutil/attributes.h"
75 #include "libavutil/common.h"
76 #include "libavutil/mem.h"
77 #include "libavutil/pixdesc.h"
78 #include "libavutil/opt.h"
79 #include "libavutil/intreadwrite.h"
80 #include "libavutil/avstring.h"
81 #include "libavutil/thread.h"
82
83 #define NMSEDEC_BITS 7
84 #define NMSEDEC_FRACBITS (NMSEDEC_BITS-1)
85 #define WMSEDEC_SHIFT 13 ///< must be >= 13
86 #define LAMBDA_SCALE (100000000LL << (WMSEDEC_SHIFT - 13))
87
88 #define CODEC_JP2 1
89 #define CODEC_J2K 0
90
91 static int lut_nmsedec_ref [1<<NMSEDEC_BITS],
92 lut_nmsedec_ref0[1<<NMSEDEC_BITS],
93 lut_nmsedec_sig [1<<NMSEDEC_BITS],
94 lut_nmsedec_sig0[1<<NMSEDEC_BITS];
95
96 static const int dwt_norms[2][4][10] = { // [dwt_type][band][rlevel] (multiplied by 10000)
97 {{10000, 19650, 41770, 84030, 169000, 338400, 676900, 1353000, 2706000, 5409000},
98 {20220, 39890, 83550, 170400, 342700, 686300, 1373000, 2746000, 5490000},
99 {20220, 39890, 83550, 170400, 342700, 686300, 1373000, 2746000, 5490000},
100 {20800, 38650, 83070, 171800, 347100, 695900, 1393000, 2786000, 5572000}},
101
102 {{10000, 15000, 27500, 53750, 106800, 213400, 426700, 853300, 1707000, 3413000},
103 {10380, 15920, 29190, 57030, 113300, 226400, 452500, 904800, 1809000},
104 {10380, 15920, 29190, 57030, 113300, 226400, 452500, 904800, 1809000},
105 { 7186, 9218, 15860, 30430, 60190, 120100, 240000, 479700, 959300}}
106 };
107
108 typedef struct {
109 Jpeg2000Component *comp;
110 double *layer_rates;
111 } Jpeg2000Tile;
112
113 typedef struct {
114 AVClass *class;
115 AVCodecContext *avctx;
116 const AVFrame *picture;
117
118 int width, height; ///< image width and height
119 uint8_t cbps[4]; ///< bits per sample in particular components
120 uint8_t comp_remap[4];
121 int chroma_shift[2];
122 uint8_t planar;
123 int ncomponents;
124 int tile_width, tile_height; ///< tile size
125 int numXtiles, numYtiles;
126
127 uint8_t *buf_start;
128 uint8_t *buf;
129 uint8_t *buf_end;
130 int bit_index;
131
132 uint64_t lambda;
133
134 Jpeg2000CodingStyle codsty;
135 Jpeg2000QuantStyle qntsty;
136
137 Jpeg2000Tile *tile;
138 int layer_rates[100];
139 uint8_t compression_rate_enc; ///< Is compression done using compression ratio?
140
141 int format;
142 int pred;
143 int sop;
144 int eph;
145 int prog;
146 int nlayers;
147 char *lr_str;
148 } Jpeg2000EncoderContext;
149
150
151 /* bitstream routines */
152
153 /** put n times val bit */
154 21037957 static void put_bits(Jpeg2000EncoderContext *s, int val, int n) // TODO: optimize
155 {
156 21037957 val <<= 7;
157
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37133179 while (n-- > 0){
158
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16095222 if (s->bit_index == 8)
159 {
160 1986379 s->bit_index = *s->buf == 0xff;
161 1986379 *(++s->buf) = 0;
162 }
163 16095222 *s->buf |= val >> s->bit_index++;
164 }
165 21037957 }
166
167 /** put n least significant bits of a number num */
168 1589586 static void put_num(Jpeg2000EncoderContext *s, int num, int n)
169 {
170
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13346015 while(--n >= 0)
171 11756429 put_bits(s, (num >> n) & 1, 1);
172 1589586 }
173
174 /** flush the bitstream */
175 59150 static void j2k_flush(Jpeg2000EncoderContext *s)
176 {
177
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59150 if (s->bit_index){
178 59150 s->bit_index = 0;
179
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59150 if (*s->buf == 0xff)
180 *(++s->buf) = 0;
181 59150 s->buf++;
182 }
183 59150 }
184
185 /* tag tree routines */
186
187 /** code the value stored in node */
188 1622232 static void tag_tree_code(Jpeg2000EncoderContext *s, Jpeg2000TgtNode *node, int threshold)
189 {
190 Jpeg2000TgtNode *stack[30];
191 1622232 int sp = -1, curval = 0;
192
193
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5428164 while(node->parent){
194 3805932 stack[++sp] = node;
195 3805932 node = node->parent;
196 }
197
198 while (1) {
199
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5428164 if (curval > node->temp_val)
200 965152 node->temp_val = curval;
201 else {
202 4463012 curval = node->temp_val;
203 }
204
205
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5428164 if (node->val >= threshold) {
206 38099 put_bits(s, 0, threshold - curval);
207 38099 curval = threshold;
208 } else {
209 5390065 put_bits(s, 0, node->val - curval);
210 5390065 curval = node->val;
211
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5390065 if (!node->vis) {
212 2204628 put_bits(s, 1, 1);
213 2204628 node->vis = 1;
214 }
215 }
216
217 5428164 node->temp_val = curval;
218
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5428164 if (sp < 0)
219 1622232 break;
220 3805932 node = stack[sp--];
221 }
222 1622232 }
223
224 /** update the value in node */
225 1791400 static void tag_tree_update(Jpeg2000TgtNode *node)
226 {
227
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2620688 while (node->parent){
228
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2281640 if (node->parent->val <= node->val)
229 1452352 break;
230 829288 node->parent->val = node->val;
231 829288 node = node->parent;
232 }
233 1791400 }
234
235 800 static int put_siz(Jpeg2000EncoderContext *s)
236 {
237 int i;
238
239
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800 if (s->buf_end - s->buf < 40 + 3 * s->ncomponents)
240 return -1;
241
242 800 bytestream_put_be16(&s->buf, JPEG2000_SIZ);
243 800 bytestream_put_be16(&s->buf, 38 + 3 * s->ncomponents); // Lsiz
244 800 bytestream_put_be16(&s->buf, 0); // Rsiz
245 800 bytestream_put_be32(&s->buf, s->width); // width
246 800 bytestream_put_be32(&s->buf, s->height); // height
247 800 bytestream_put_be32(&s->buf, 0); // X0Siz
248 800 bytestream_put_be32(&s->buf, 0); // Y0Siz
249
250 800 bytestream_put_be32(&s->buf, s->tile_width); // XTSiz
251 800 bytestream_put_be32(&s->buf, s->tile_height); // YTSiz
252 800 bytestream_put_be32(&s->buf, 0); // XT0Siz
253 800 bytestream_put_be32(&s->buf, 0); // YT0Siz
254 800 bytestream_put_be16(&s->buf, s->ncomponents); // CSiz
255
256
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3400 for (i = 0; i < s->ncomponents; i++){ // Ssiz_i XRsiz_i, YRsiz_i
257 2600 bytestream_put_byte(&s->buf, s->cbps[i] - 1);
258
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2600 bytestream_put_byte(&s->buf, (i+1&2)?1<<s->chroma_shift[0]:1);
259
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2600 bytestream_put_byte(&s->buf, (i+1&2)?1<<s->chroma_shift[1]:1);
260 }
261 800 return 0;
262 }
263
264 800 static int put_cod(Jpeg2000EncoderContext *s)
265 {
266 800 Jpeg2000CodingStyle *codsty = &s->codsty;
267 800 uint8_t scod = 0;
268
269
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800 if (s->buf_end - s->buf < 14)
270 return -1;
271
272 800 bytestream_put_be16(&s->buf, JPEG2000_COD);
273 800 bytestream_put_be16(&s->buf, 12); // Lcod
274
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800 if (s->sop)
275 scod |= JPEG2000_CSTY_SOP;
276
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800 if (s->eph)
277 scod |= JPEG2000_CSTY_EPH;
278 800 bytestream_put_byte(&s->buf, scod); // Scod
279 // SGcod
280 800 bytestream_put_byte(&s->buf, s->prog); // progression level
281 800 bytestream_put_be16(&s->buf, s->nlayers); // num of layers
282
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800 if(s->avctx->pix_fmt == AV_PIX_FMT_YUV444P){
283 bytestream_put_byte(&s->buf, 0); // unspecified
284 }else{
285 800 bytestream_put_byte(&s->buf, 0); // unspecified
286 }
287 // SPcod
288 800 bytestream_put_byte(&s->buf, codsty->nreslevels - 1); // num of decomp. levels
289 800 bytestream_put_byte(&s->buf, codsty->log2_cblk_width-2); // cblk width
290 800 bytestream_put_byte(&s->buf, codsty->log2_cblk_height-2); // cblk height
291 800 bytestream_put_byte(&s->buf, 0); // cblk style
292 800 bytestream_put_byte(&s->buf, codsty->transform == FF_DWT53); // transformation
293 800 return 0;
294 }
295
296 800 static int put_qcd(Jpeg2000EncoderContext *s, int compno)
297 {
298 int i, size;
299 800 Jpeg2000CodingStyle *codsty = &s->codsty;
300 800 Jpeg2000QuantStyle *qntsty = &s->qntsty;
301
302
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800 if (qntsty->quantsty == JPEG2000_QSTY_NONE)
303 600 size = 4 + 3 * (codsty->nreslevels-1);
304 else // QSTY_SE
305 200 size = 5 + 6 * (codsty->nreslevels-1);
306
307
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800 if (s->buf_end - s->buf < size + 2)
308 return -1;
309
310 800 bytestream_put_be16(&s->buf, JPEG2000_QCD);
311 800 bytestream_put_be16(&s->buf, size); // LQcd
312 800 bytestream_put_byte(&s->buf, (qntsty->nguardbits << 5) | qntsty->quantsty); // Sqcd
313
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800 if (qntsty->quantsty == JPEG2000_QSTY_NONE)
314
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12000 for (i = 0; i < codsty->nreslevels * 3 - 2; i++)
315 11400 bytestream_put_byte(&s->buf, qntsty->expn[i] << 3);
316 else // QSTY_SE
317
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4000 for (i = 0; i < codsty->nreslevels * 3 - 2; i++)
318 3800 bytestream_put_be16(&s->buf, (qntsty->expn[i] << 11) | qntsty->mant[i]);
319 800 return 0;
320 }
321
322 800 static int put_com(Jpeg2000EncoderContext *s, int compno)
323 {
324 800 int size = 4 + strlen(LIBAVCODEC_IDENT);
325
326
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800 if (s->avctx->flags & AV_CODEC_FLAG_BITEXACT)
327 800 return 0;
328
329 if (s->buf_end - s->buf < size + 2)
330 return -1;
331
332 bytestream_put_be16(&s->buf, JPEG2000_COM);
333 bytestream_put_be16(&s->buf, size);
334 bytestream_put_be16(&s->buf, 1); // General use (ISO/IEC 8859-15 (Latin) values)
335
336 bytestream_put_buffer(&s->buf, LIBAVCODEC_IDENT, strlen(LIBAVCODEC_IDENT));
337
338 return 0;
339 }
340
341 2600 static uint8_t *put_sot(Jpeg2000EncoderContext *s, int tileno)
342 {
343 uint8_t *psotptr;
344
345
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2600 if (s->buf_end - s->buf < 12)
346 return NULL;
347
348 2600 bytestream_put_be16(&s->buf, JPEG2000_SOT);
349 2600 bytestream_put_be16(&s->buf, 10); // Lsot
350 2600 bytestream_put_be16(&s->buf, tileno); // Isot
351
352 2600 psotptr = s->buf;
353 2600 bytestream_put_be32(&s->buf, 0); // Psot (filled in later)
354
355 2600 bytestream_put_byte(&s->buf, 0); // TPsot
356 2600 bytestream_put_byte(&s->buf, 1); // TNsot
357 2600 return psotptr;
358 }
359
360 16 static void compute_rates(Jpeg2000EncoderContext* s)
361 {
362 int i, j;
363 int layno, compno;
364
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44 for (i = 0; i < s->numYtiles; i++) {
365
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80 for (j = 0; j < s->numXtiles; j++) {
366 52 Jpeg2000Tile *tile = &s->tile[s->numXtiles * i + j];
367
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221 for (compno = 0; compno < s->ncomponents; compno++) {
368 169 int tilew = tile->comp[compno].coord[0][1] - tile->comp[compno].coord[0][0];
369 169 int tileh = tile->comp[compno].coord[1][1] - tile->comp[compno].coord[1][0];
370
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169 int scale = ((compno+1&2)?1 << s->chroma_shift[0]:1) * ((compno+1&2)?1 << s->chroma_shift[1]:1);
371
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338 for (layno = 0; layno < s->nlayers; layno++) {
372
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169 if (s->layer_rates[layno] > 0) {
373 tile->layer_rates[layno] += (double)(tilew * tileh) * s->ncomponents * s->cbps[compno] /
374 (double)(s->layer_rates[layno] * 8 * scale);
375 } else {
376 169 tile->layer_rates[layno] = 0.0;
377 }
378 }
379 }
380 }
381 }
382
383 16 }
384
385 /**
386 * compute the sizes of tiles, resolution levels, bands, etc.
387 * allocate memory for them
388 * divide the input image into tile-components
389 */
390 16 static int init_tiles(Jpeg2000EncoderContext *s)
391 {
392 int tileno, tilex, tiley, compno;
393 16 Jpeg2000CodingStyle *codsty = &s->codsty;
394 16 Jpeg2000QuantStyle *qntsty = &s->qntsty;
395
396 16 s->numXtiles = ff_jpeg2000_ceildiv(s->width, s->tile_width);
397 16 s->numYtiles = ff_jpeg2000_ceildiv(s->height, s->tile_height);
398
399 16 s->tile = av_calloc(s->numXtiles, s->numYtiles * sizeof(Jpeg2000Tile));
400
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16 if (!s->tile)
401 return AVERROR(ENOMEM);
402
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44 for (tileno = 0, tiley = 0; tiley < s->numYtiles; tiley++)
403
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80 for (tilex = 0; tilex < s->numXtiles; tilex++, tileno++){
404 52 Jpeg2000Tile *tile = s->tile + tileno;
405
406 52 tile->comp = av_calloc(s->ncomponents, sizeof(*tile->comp));
407
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52 if (!tile->comp)
408 return AVERROR(ENOMEM);
409
410 52 tile->layer_rates = av_calloc(s->nlayers, sizeof(*tile->layer_rates));
411
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52 if (!tile->layer_rates)
412 return AVERROR(ENOMEM);
413
414
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221 for (compno = 0; compno < s->ncomponents; compno++){
415 169 Jpeg2000Component *comp = tile->comp + compno;
416 int ret, i, j;
417
418 169 comp->coord[0][0] = comp->coord_o[0][0] = tilex * s->tile_width;
419 169 comp->coord[0][1] = comp->coord_o[0][1] = FFMIN((tilex+1)*s->tile_width, s->width);
420 169 comp->coord[1][0] = comp->coord_o[1][0] = tiley * s->tile_height;
421 169 comp->coord[1][1] = comp->coord_o[1][1] = FFMIN((tiley+1)*s->tile_height, s->height);
422
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169 if (compno + 1 & 2)
423
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312 for (i = 0; i < 2; i++)
424
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624 for (j = 0; j < 2; j++)
425 416 comp->coord[i][j] = comp->coord_o[i][j] = ff_jpeg2000_ceildivpow2(comp->coord[i][j], s->chroma_shift[i]);
426
427
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299 if ((ret = ff_jpeg2000_init_component(comp,
428 codsty,
429 qntsty,
430 169 s->cbps[compno],
431
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169 (compno+1&2)?1<<s->chroma_shift[0]:1,
432
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169 (compno+1&2)?1<<s->chroma_shift[1]:1,
433 s->avctx
434 )) < 0)
435 return ret;
436 }
437 }
438 16 compute_rates(s);
439 16 return 0;
440 }
441
442 #define COPY_FRAME(D, PIXEL) \
443 static void copy_frame_ ##D(Jpeg2000EncoderContext *s) \
444 { \
445 int tileno, compno, i, y, x; \
446 const PIXEL *line; \
447 for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){ \
448 Jpeg2000Tile *tile = s->tile + tileno; \
449 if (s->planar){ \
450 for (compno = 0; compno < s->ncomponents; compno++){ \
451 int icompno = s->comp_remap[compno]; \
452 Jpeg2000Component *comp = tile->comp + compno; \
453 int *dst = comp->i_data; \
454 int cbps = s->cbps[compno]; \
455 line = (const PIXEL*)s->picture->data[icompno] \
456 + comp->coord[1][0] * (s->picture->linesize[icompno] / sizeof(PIXEL)) \
457 + comp->coord[0][0]; \
458 for (y = comp->coord[1][0]; y < comp->coord[1][1]; y++){ \
459 const PIXEL *ptr = line; \
460 for (x = comp->coord[0][0]; x < comp->coord[0][1]; x++) \
461 *dst++ = *ptr++ - (1 << (cbps - 1)); \
462 line += s->picture->linesize[icompno] / sizeof(PIXEL); \
463 } \
464 } \
465 } else{ \
466 line = (const PIXEL*)(s->picture->data[0] + tile->comp[0].coord[1][0] * s->picture->linesize[0]) \
467 + tile->comp[0].coord[0][0] * s->ncomponents; \
468 \
469 i = 0; \
470 for (y = tile->comp[0].coord[1][0]; y < tile->comp[0].coord[1][1]; y++){ \
471 const PIXEL *ptr = line; \
472 for (x = tile->comp[0].coord[0][0]; x < tile->comp[0].coord[0][1]; x++, i++){ \
473 for (compno = 0; compno < s->ncomponents; compno++){ \
474 int cbps = s->cbps[compno]; \
475 tile->comp[compno].i_data[i] = *ptr++ - (1 << (cbps - 1)); \
476 } \
477 } \
478 line += s->picture->linesize[0] / sizeof(PIXEL); \
479 } \
480 } \
481 } \
482 }
483
484
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122291500 COPY_FRAME(8, uint8_t)
485
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107472350 COPY_FRAME(16, uint16_t)
486
487 16 static void init_quantization(Jpeg2000EncoderContext *s)
488 {
489 int compno, reslevelno, bandno;
490 16 Jpeg2000QuantStyle *qntsty = &s->qntsty;
491 16 Jpeg2000CodingStyle *codsty = &s->codsty;
492
493
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68 for (compno = 0; compno < s->ncomponents; compno++){
494 52 int gbandno = 0;
495
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416 for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
496 364 int nbands, lev = codsty->nreslevels - reslevelno - 1;
497
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364 nbands = reslevelno ? 3 : 1;
498
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1352 for (bandno = 0; bandno < nbands; bandno++, gbandno++){
499 988 int expn, mant = 0;
500
501
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988 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
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228 mant = (11 - log < 0 ? ss >> log - 11 : ss << 11 - log) & 0x7ff;
506 228 expn = s->cbps[compno] - log + 13;
507 } else
508 760 expn = ((bandno&2)>>1) + (reslevelno>0) + s->cbps[compno];
509
510 988 qntsty->expn[gbandno] = expn;
511 988 qntsty->mant[gbandno] = mant;
512 }
513 }
514 }
515 16 }
516
517 16 static av_cold void init_luts(void)
518 {
519 int i, a,
520 16 mask = ~((1<<NMSEDEC_FRACBITS)-1);
521
522
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2064 for (i = 0; i < (1 << NMSEDEC_BITS); i++){
523 2048 lut_nmsedec_sig[i] = FFMAX((3 * i << (13 - NMSEDEC_FRACBITS)) - (9 << 11), 0);
524 2048 lut_nmsedec_sig0[i] = FFMAX((i*i + (1<<NMSEDEC_FRACBITS-1) & mask) << 1, 0);
525
526 2048 a = (i >> (NMSEDEC_BITS-2)&2) + 1;
527 2048 lut_nmsedec_ref[i] = FFMAX((a - 2) * (i << (13 - NMSEDEC_FRACBITS)) +
528 (1 << 13) - (a * a << 11), 0);
529 2048 lut_nmsedec_ref0[i] = FFMAX(((i * i - (i << NMSEDEC_BITS) + (1 << 2 * NMSEDEC_FRACBITS) + (1 << (NMSEDEC_FRACBITS - 1))) & mask)
530 << 1, 0);
531 }
532 16 ff_jpeg2000_init_tier1_luts();
533 16 }
534
535 /* tier-1 routines */
536 164090682 static int getnmsedec_sig(int x, int bpno)
537 {
538
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164090682 if (bpno > NMSEDEC_FRACBITS)
539 146013952 return lut_nmsedec_sig[(x >> (bpno - NMSEDEC_FRACBITS)) & ((1 << NMSEDEC_BITS) - 1)];
540 18076730 return lut_nmsedec_sig0[x & ((1 << NMSEDEC_BITS) - 1)];
541 }
542
543 695017080 static int getnmsedec_ref(int x, int bpno)
544 {
545
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695017080 if (bpno > NMSEDEC_FRACBITS)
546 549003128 return lut_nmsedec_ref[(x >> (bpno - NMSEDEC_FRACBITS)) & ((1 << NMSEDEC_BITS) - 1)];
547 146013952 return lut_nmsedec_ref0[x & ((1 << NMSEDEC_BITS) - 1)];
548 }
549
550 6655953 static void encode_sigpass(Jpeg2000T1Context *t1, int width, int height, int bandno, int *nmsedec, int bpno)
551 {
552 6655953 int y0, x, y, mask = 1 << (bpno + NMSEDEC_FRACBITS);
553
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30482774 for (y0 = 0; y0 < height; y0 += 4)
554
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385288928 for (x = 0; x < width; x++)
555
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1801524562 for (y = y0; y < height && y < y0+4; y++){
556
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1440062455 if (!(t1->flags[(y+1) * t1->stride + x+1] & JPEG2000_T1_SIG) && (t1->flags[(y+1) * t1->stride + x+1] & JPEG2000_T1_SIG_NB)){
557 379612927 int ctxno = ff_jpeg2000_getsigctxno(t1->flags[(y+1) * t1->stride + x+1], bandno),
558 379612927 bit = t1->data[(y) * t1->stride + x] & mask ? 1 : 0;
559 379612927 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, bit);
560
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379612927 if (bit){
561 int xorbit;
562 134620397 int ctxno = ff_jpeg2000_getsgnctxno(t1->flags[(y+1) * t1->stride + x+1], &xorbit);
563 134620397 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, (t1->flags[(y+1) * t1->stride + x+1] >> 15) ^ xorbit);
564 134620397 *nmsedec += getnmsedec_sig(t1->data[(y) * t1->stride + x], bpno + NMSEDEC_FRACBITS);
565 134620397 ff_jpeg2000_set_significance(t1, x, y, t1->flags[(y+1) * t1->stride + x+1] >> 15);
566 }
567 379612927 t1->flags[(y+1) * t1->stride + x+1] |= JPEG2000_T1_VIS;
568 }
569 }
570 6655953 }
571
572 6655953 static void encode_refpass(Jpeg2000T1Context *t1, int width, int height, int *nmsedec, int bpno)
573 {
574 6655953 int y0, x, y, mask = 1 << (bpno + NMSEDEC_FRACBITS);
575
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30482774 for (y0 = 0; y0 < height; y0 += 4)
576
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385288928 for (x = 0; x < width; x++)
577
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1801524562 for (y = y0; y < height && y < y0+4; y++)
578
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1440062455 if ((t1->flags[(y+1) * t1->stride + x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS)) == JPEG2000_T1_SIG){
579 695017080 int ctxno = ff_jpeg2000_getrefctxno(t1->flags[(y+1) * t1->stride + x+1]);
580 695017080 *nmsedec += getnmsedec_ref(t1->data[(y) * t1->stride + x], bpno + NMSEDEC_FRACBITS);
581 695017080 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, t1->data[(y) * t1->stride + x] & mask ? 1:0);
582 695017080 t1->flags[(y+1) * t1->stride + x+1] |= JPEG2000_T1_REF;
583 }
584 6655953 }
585
586 7483372 static void encode_clnpass(Jpeg2000T1Context *t1, int width, int height, int bandno, int *nmsedec, int bpno)
587 {
588 7483372 int y0, x, y, mask = 1 << (bpno + NMSEDEC_FRACBITS);
589
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34316812 for (y0 = 0; y0 < height; y0 += 4)
590
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434242366 for (x = 0; x < width; x++){
591
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407408926 if (y0 + 3 < height && !(
592
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404831834 (t1->flags[(y0+1) * t1->stride + x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
593
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116790876 (t1->flags[(y0+2) * t1->stride + x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
594
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105766238 (t1->flags[(y0+3) * t1->stride + x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
595
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96646236 (t1->flags[(y0+4) * t1->stride + x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG))))
596 7209020 {
597 // aggregation mode
598 int rlen;
599
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442747432 for (rlen = 0; rlen < 4; rlen++)
600
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357893781 if (t1->data[(y0+rlen) * t1->stride + x] & mask)
601 7209020 break;
602 92062671 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + MQC_CX_RL, rlen != 4);
603
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92062671 if (rlen == 4)
604 84853651 continue;
605 7209020 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI, rlen >> 1);
606 7209020 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI, rlen & 1);
607
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24774943 for (y = y0 + rlen; y < y0 + 4; y++){
608
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17565923 if (!(t1->flags[(y+1) * t1->stride + x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS))){
609 17565923 int ctxno = ff_jpeg2000_getsigctxno(t1->flags[(y+1) * t1->stride + x+1], bandno);
610
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17565923 if (y > y0 + rlen)
611 10356903 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, t1->data[(y) * t1->stride + x] & mask ? 1:0);
612
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17565923 if (t1->data[(y) * t1->stride + x] & mask){ // newly significant
613 int xorbit;
614 8653162 int ctxno = ff_jpeg2000_getsgnctxno(t1->flags[(y+1) * t1->stride + x+1], &xorbit);
615 8653162 *nmsedec += getnmsedec_sig(t1->data[(y) * t1->stride + x], bpno + NMSEDEC_FRACBITS);
616 8653162 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, (t1->flags[(y+1) * t1->stride + x+1] >> 15) ^ xorbit);
617 8653162 ff_jpeg2000_set_significance(t1, x, y, t1->flags[(y+1) * t1->stride + x+1] >> 15);
618 }
619 }
620 17565923 t1->flags[(y+1) * t1->stride + x+1] &= ~JPEG2000_T1_VIS;
621 }
622 } else{
623
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1570332944 for (y = y0; y < y0 + 4 && y < height; y++){
624
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1254986689 if (!(t1->flags[(y+1) * t1->stride + x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS))){
625 180356682 int ctxno = ff_jpeg2000_getsigctxno(t1->flags[(y+1) * t1->stride + x+1], bandno);
626 180356682 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, t1->data[(y) * t1->stride + x] & mask ? 1:0);
627
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180356682 if (t1->data[(y) * t1->stride + x] & mask){ // newly significant
628 int xorbit;
629 20817123 int ctxno = ff_jpeg2000_getsgnctxno(t1->flags[(y+1) * t1->stride + x+1], &xorbit);
630 20817123 *nmsedec += getnmsedec_sig(t1->data[(y) * t1->stride + x], bpno + NMSEDEC_FRACBITS);
631 20817123 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, (t1->flags[(y+1) * t1->stride + x+1] >> 15) ^ xorbit);
632 20817123 ff_jpeg2000_set_significance(t1, x, y, t1->flags[(y+1) * t1->stride + x+1] >> 15);
633 }
634 }
635 1254986689 t1->flags[(y+1) * t1->stride + x+1] &= ~JPEG2000_T1_VIS;
636 }
637 }
638 }
639 7483372 }
640
641 895700 static void encode_cblk(Jpeg2000EncoderContext *s, Jpeg2000T1Context *t1, Jpeg2000Cblk *cblk, Jpeg2000Tile *tile,
642 int width, int height, int bandpos, int lev)
643 {
644 895700 int pass_t = 2, passno, x, y, max=0, nmsedec, bpno;
645 895700 int64_t wmsedec = 0;
646
647 895700 memset(t1->flags, 0, t1->stride * (height + 2) * sizeof(*t1->flags));
648
649
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13807950 for (y = 0; y < height; y++){
650
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211346850 for (x = 0; x < width; x++){
651
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198434600 if (t1->data[(y) * t1->stride + x] < 0){
652 81359665 t1->flags[(y+1) * t1->stride + x+1] |= JPEG2000_T1_SGN;
653 81359665 t1->data[(y) * t1->stride + x] = -t1->data[(y) * t1->stride + x];
654 }
655 198434600 max = FFMAX(max, t1->data[(y) * t1->stride + x]);
656 }
657 }
658
659
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895700 if (max == 0){
660 68280 cblk->nonzerobits = 0;
661 } else{
662 827420 cblk->nonzerobits = av_log2(max) + 1 - NMSEDEC_FRACBITS;
663 }
664 895700 bpno = cblk->nonzerobits - 1;
665
666 895700 cblk->data[0] = 0;
667 895700 ff_mqc_initenc(&t1->mqc, cblk->data + 1);
668
669
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21690978 for (passno = 0; bpno >= 0; passno++){
670 20795278 nmsedec=0;
671
672
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20795278 switch(pass_t){
673 6655953 case 0: encode_sigpass(t1, width, height, bandpos, &nmsedec, bpno);
674 6655953 break;
675 6655953 case 1: encode_refpass(t1, width, height, &nmsedec, bpno);
676 6655953 break;
677 7483372 case 2: encode_clnpass(t1, width, height, bandpos, &nmsedec, bpno);
678 7483372 break;
679 }
680
681 20795278 cblk->passes[passno].rate = ff_mqc_flush_to(&t1->mqc, cblk->passes[passno].flushed, &cblk->passes[passno].flushed_len);
682 20795278 cblk->passes[passno].rate -= cblk->passes[passno].flushed_len;
683
684 20795278 wmsedec += (int64_t)nmsedec << (2*bpno);
685 20795278 cblk->passes[passno].disto = wmsedec;
686
687
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20795278 if (++pass_t == 3){
688 7483372 pass_t = 0;
689 7483372 bpno--;
690 }
691 }
692 895700 cblk->npasses = passno;
693 895700 cblk->ninclpasses = passno;
694
695
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895700 if (passno) {
696 827419 cblk->passes[passno-1].rate = ff_mqc_flush_to(&t1->mqc, cblk->passes[passno-1].flushed, &cblk->passes[passno-1].flushed_len);
697 827419 cblk->passes[passno-1].rate -= cblk->passes[passno-1].flushed_len;
698 }
699 895700 }
700
701 /* tier-2 routines: */
702
703 794793 static void putnumpasses(Jpeg2000EncoderContext *s, int n)
704 {
705
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794793 if (n == 1)
706 40682 put_num(s, 0, 1);
707
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754111 else if (n == 2)
708 14650 put_num(s, 2, 2);
709
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739461 else if (n <= 5)
710 109246 put_num(s, 0xc | (n-3), 4);
711
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630215 else if (n <= 36)
712 587281 put_num(s, 0x1e0 | (n-6), 9);
713 else
714 42934 put_num(s, 0xff80 | (n-37), 16);
715 794793 }
716
717
718 59150 static int encode_packet(Jpeg2000EncoderContext *s, Jpeg2000ResLevel *rlevel, int layno,
719 int precno, const uint8_t *expn, int numgbits, int packetno,
720 int nlayers)
721 {
722 59150 int bandno, empty = 1;
723 int i;
724
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59150 if (s->sop) {
725 bytestream_put_be16(&s->buf, JPEG2000_SOP);
726 bytestream_put_be16(&s->buf, 4);
727 bytestream_put_be16(&s->buf, packetno);
728 }
729
730 // init bitstream
731 59150 *s->buf = 0;
732 59150 s->bit_index = 0;
733
734 // header
735
736
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59150 if (!layno) {
737
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219700 for (bandno = 0; bandno < rlevel->nbands; bandno++) {
738 160550 Jpeg2000Band *band = rlevel->band + bandno;
739
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160550 if (band->coord[0][0] < band->coord[0][1]
740
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160550 && band->coord[1][0] < band->coord[1][1]) {
741 152750 Jpeg2000Prec *prec = band->prec + precno;
742 152750 int nb_cblks = prec->nb_codeblocks_height * prec->nb_codeblocks_width;
743 int pos;
744 152750 ff_tag_tree_zero(prec->zerobits, prec->nb_codeblocks_width, prec->nb_codeblocks_height, 99);
745 152750 ff_tag_tree_zero(prec->cblkincl, prec->nb_codeblocks_width, prec->nb_codeblocks_height, 99);
746
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1048450 for (pos = 0; pos < nb_cblks; pos++) {
747 895700 Jpeg2000Cblk *cblk = &prec->cblk[pos];
748 895700 prec->zerobits[pos].val = expn[bandno] + numgbits - 1 - cblk->nonzerobits;
749 895700 cblk->incl = 0;
750 895700 cblk->lblock = 3;
751 895700 tag_tree_update(prec->zerobits + pos);
752
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996607 for (i = 0; i < nlayers; i++) {
753
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895700 if (cblk->layers[i].npasses > 0) {
754 794793 prec->cblkincl[pos].val = i;
755 794793 break;
756 }
757 }
758
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895700 if (i == nlayers)
759 100907 prec->cblkincl[pos].val = i;
760 895700 tag_tree_update(prec->cblkincl + pos);
761 }
762 }
763 }
764 }
765
766 // is the packet empty?
767
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70883 for (bandno = 0; bandno < rlevel->nbands; bandno++){
768 66972 Jpeg2000Band *band = rlevel->band + bandno;
769
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66972 if (band->coord[0][0] < band->coord[0][1]
770
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66972 && band->coord[1][0] < band->coord[1][1]) {
771 66362 Jpeg2000Prec *prec = band->prec + precno;
772 66362 int nb_cblks = prec->nb_codeblocks_height * prec->nb_codeblocks_width;
773 int pos;
774
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134873 for (pos = 0; pos < nb_cblks; pos++) {
775 123750 Jpeg2000Cblk *cblk = &prec->cblk[pos];
776
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123750 if (cblk->layers[layno].npasses) {
777 55239 empty = 0;
778 55239 break;
779 }
780 }
781
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66362 if (!empty)
782 55239 break;
783 }
784 }
785
786
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59150 if (s->buf_end - s->buf < 3)
787 return -1;
788
789 59150 put_bits(s, !empty, 1);
790
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59150 if (empty){
791 3911 j2k_flush(s);
792
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3911 if (s->eph)
793 bytestream_put_be16(&s->buf, JPEG2000_EPH);
794 3911 return 0;
795 }
796
797
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204068 for (bandno = 0; bandno < rlevel->nbands; bandno++) {
798 148829 Jpeg2000Band *band = rlevel->band + bandno;
799 148829 Jpeg2000Prec *prec = band->prec + precno;
800 int yi, xi, pos;
801 148829 int cblknw = prec->nb_codeblocks_width;
802
803
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148829 if (band->coord[0][0] == band->coord[0][1]
804
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148829 || band->coord[1][0] == band->coord[1][1])
805 7190 continue;
806
807
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403878 for (pos=0, yi = 0; yi < prec->nb_codeblocks_height; yi++) {
808
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1089678 for (xi = 0; xi < cblknw; xi++, pos++){
809 827439 int llen = 0, length;
810 827439 Jpeg2000Cblk *cblk = prec->cblk + yi * cblknw + xi;
811
812
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827439 if (s->buf_end - s->buf < 20) // approximately
813 return -1;
814
815 // inclusion information
816
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827439 if (!cblk->incl)
817 827439 tag_tree_code(s, prec->cblkincl + pos, layno + 1);
818 else {
819 put_bits(s, cblk->layers[layno].npasses > 0, 1);
820 }
821
822
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827439 if (!cblk->layers[layno].npasses)
823 32646 continue;
824
825 // zerobits information
826
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794793 if (!cblk->incl) {
827 794793 tag_tree_code(s, prec->zerobits + pos, 100);
828 794793 cblk->incl = 1;
829 }
830
831 // number of passes
832 794793 putnumpasses(s, cblk->layers[layno].npasses);
833
834 794793 length = cblk->layers[layno].data_len;
835
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794793 if (layno == nlayers - 1 && cblk->layers[layno].cum_passes){
836 794793 length += cblk->passes[cblk->layers[layno].cum_passes-1].flushed_len;
837 }
838
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794793 if (cblk->lblock + av_log2(cblk->layers[layno].npasses) < av_log2(length) + 1) {
839 393015 llen = av_log2(length) + 1 - cblk->lblock - av_log2(cblk->layers[layno].npasses);
840 }
841
842 // length of code block
843 794793 cblk->lblock += llen;
844 794793 put_bits(s, 1, llen);
845 794793 put_bits(s, 0, 1);
846 794793 put_num(s, length, cblk->lblock + av_log2(cblk->layers[layno].npasses));
847 }
848 }
849 }
850
851
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55239 if (s->buf_end - s->buf < 2 + 2 * s->eph)
852 return -1;
853
854 55239 j2k_flush(s);
855
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55239 if (s->eph) {
856 bytestream_put_be16(&s->buf, JPEG2000_EPH);
857 }
858
859
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204068 for (bandno = 0; bandno < rlevel->nbands; bandno++) {
860 148829 Jpeg2000Band *band = rlevel->band + bandno;
861 148829 Jpeg2000Prec *prec = band->prec + precno;
862 148829 int yi, cblknw = prec->nb_codeblocks_width;
863
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418258 for (yi =0; yi < prec->nb_codeblocks_height; yi++) {
864 int xi;
865
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1104058 for (xi = 0; xi < cblknw; xi++){
866 834629 Jpeg2000Cblk *cblk = prec->cblk + yi * cblknw + xi;
867
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834629 if (cblk->layers[layno].npasses) {
868
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794793 if (s->buf_end - s->buf < cblk->layers[layno].data_len + 2)
869 return -1;
870 794793 bytestream_put_buffer(&s->buf, cblk->layers[layno].data_start + 1, cblk->layers[layno].data_len);
871
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794793 if (layno == nlayers - 1 && cblk->layers[layno].cum_passes) {
872 794793 bytestream_put_buffer(&s->buf, cblk->passes[cblk->layers[layno].cum_passes-1].flushed,
873 794793 cblk->passes[cblk->layers[layno].cum_passes-1].flushed_len);
874 }
875 }
876 }
877 }
878 }
879 55239 return 0;
880 }
881
882 2600 static int encode_packets(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile, int tileno, int nlayers)
883 {
884 int compno, reslevelno, layno, ret;
885 2600 Jpeg2000CodingStyle *codsty = &s->codsty;
886 2600 Jpeg2000QuantStyle *qntsty = &s->qntsty;
887 2600 int packetno = 0;
888 int step_x, step_y;
889 int x, y;
890 int tile_coord[2][2];
891 2600 int col = tileno % s->numXtiles;
892 2600 int row = tileno / s->numXtiles;
893
894 2600 tile_coord[0][0] = col * s->tile_width;
895 2600 tile_coord[0][1] = FFMIN(tile_coord[0][0] + s->tile_width, s->width);
896 2600 tile_coord[1][0] = row * s->tile_height;
897 2600 tile_coord[1][1] = FFMIN(tile_coord[1][0] + s->tile_height, s->height);
898
899 2600 av_log(s->avctx, AV_LOG_DEBUG, "tier2\n");
900 // lay-rlevel-comp-pos progression
901
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2600 switch (s->prog) {
902 2600 case JPEG2000_PGOD_LRCP:
903
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5200 for (layno = 0; layno < nlayers; layno++) {
904
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20800 for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
905
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77350 for (compno = 0; compno < s->ncomponents; compno++){
906 int precno;
907 59150 Jpeg2000ResLevel *reslevel = s->tile[tileno].comp[compno].reslevel + reslevelno;
908
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118300 for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
909
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59150 if ((ret = encode_packet(s, reslevel, layno, precno, qntsty->expn + (reslevelno ? 3*reslevelno-2 : 0),
910
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59150 qntsty->nguardbits, packetno++, nlayers)) < 0)
911 return ret;
912 }
913 }
914 }
915 }
916 2600 break;
917 case JPEG2000_PGOD_RLCP:
918 for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
919 for (layno = 0; layno < nlayers; layno++) {
920 for (compno = 0; compno < s->ncomponents; compno++){
921 int precno;
922 Jpeg2000ResLevel *reslevel = s->tile[tileno].comp[compno].reslevel + reslevelno;
923 for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
924 if ((ret = encode_packet(s, reslevel, layno, precno, qntsty->expn + (reslevelno ? 3*reslevelno-2 : 0),
925 qntsty->nguardbits, packetno++, nlayers)) < 0)
926 return ret;
927 }
928 }
929 }
930 }
931 break;
932 case JPEG2000_PGOD_RPCL:
933 for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) {
934 int precno;
935 step_x = 30;
936 step_y = 30;
937 for (compno = 0; compno < s->ncomponents; compno++) {
938 Jpeg2000Component *comp = tile->comp + compno;
939 if (reslevelno < codsty->nreslevels) {
940 uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r
941 Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno;
942 step_x = FFMIN(step_x, rlevel->log2_prec_width + reducedresno);
943 step_y = FFMIN(step_y, rlevel->log2_prec_height + reducedresno);
944 }
945 }
946
947 step_x = 1<<step_x;
948 step_y = 1<<step_y;
949 for (y = tile_coord[1][0]; y < tile_coord[1][1]; y = (y/step_y + 1)*step_y) {
950 for (x = tile_coord[0][0]; x < tile_coord[0][1]; x = (x/step_x + 1)*step_x) {
951 for (compno = 0; compno < s->ncomponents; compno++) {
952 Jpeg2000Component *comp = tile->comp + compno;
953 uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r
954 Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
955 int log_subsampling[2] = { (compno+1&2)?s->chroma_shift[0]:0, (compno+1&2)?s->chroma_shift[1]:0};
956 unsigned prcx, prcy;
957 int trx0, try0;
958
959 trx0 = ff_jpeg2000_ceildivpow2(tile_coord[0][0], log_subsampling[0] + reducedresno);
960 try0 = ff_jpeg2000_ceildivpow2(tile_coord[1][0], log_subsampling[1] + reducedresno);
961
962 if (!(y % ((uint64_t)1 << (reslevel->log2_prec_height + reducedresno + log_subsampling[1])) == 0 ||
963 (y == tile_coord[1][0] && (try0 << reducedresno) % (1U << (reducedresno + reslevel->log2_prec_height)))))
964 continue;
965
966 if (!(x % ((uint64_t)1 << (reslevel->log2_prec_width + reducedresno + log_subsampling[0])) == 0 ||
967 (x == tile_coord[0][0] && (trx0 << reducedresno) % (1U << (reducedresno + reslevel->log2_prec_width)))))
968 continue;
969
970 // check if a precinct exists
971 prcx = ff_jpeg2000_ceildivpow2(x, log_subsampling[0] + reducedresno) >> reslevel->log2_prec_width;
972 prcy = ff_jpeg2000_ceildivpow2(y, log_subsampling[1] + reducedresno) >> reslevel->log2_prec_height;
973 prcx -= ff_jpeg2000_ceildivpow2(comp->coord_o[0][0], reducedresno) >> reslevel->log2_prec_width;
974 prcy -= ff_jpeg2000_ceildivpow2(comp->coord_o[1][0], reducedresno) >> reslevel->log2_prec_height;
975 precno = prcx + reslevel->num_precincts_x * prcy;
976
977 if (prcx >= reslevel->num_precincts_x || prcy >= reslevel->num_precincts_y) {
978 av_log(s->avctx, AV_LOG_WARNING, "prc %d %d outside limits %d %d\n",
979 prcx, prcy, reslevel->num_precincts_x, reslevel->num_precincts_y);
980 continue;
981 }
982 for (layno = 0; layno < nlayers; layno++) {
983 if ((ret = encode_packet(s, reslevel, layno, precno, qntsty->expn + (reslevelno ? 3*reslevelno-2 : 0),
984 qntsty->nguardbits, packetno++, nlayers)) < 0)
985 return ret;
986 }
987 }
988 }
989 }
990 }
991 break;
992 case JPEG2000_PGOD_PCRL:
993 step_x = 32;
994 step_y = 32;
995 for (compno = 0; compno < s->ncomponents; compno++) {
996 Jpeg2000Component *comp = tile->comp + compno;
997
998 for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) {
999 uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r
1000 Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno;
1001 step_x = FFMIN(step_x, rlevel->log2_prec_width + reducedresno);
1002 step_y = FFMIN(step_y, rlevel->log2_prec_height + reducedresno);
1003 }
1004 }
1005 if (step_x >= 31 || step_y >= 31){
1006 avpriv_request_sample(s->avctx, "PCRL with large step");
1007 return AVERROR_PATCHWELCOME;
1008 }
1009 step_x = 1<<step_x;
1010 step_y = 1<<step_y;
1011
1012 for (y = tile_coord[1][0]; y < tile_coord[1][1]; y = (y/step_y + 1)*step_y) {
1013 for (x = tile_coord[0][0]; x < tile_coord[0][1]; x = (x/step_x + 1)*step_x) {
1014 for (compno = 0; compno < s->ncomponents; compno++) {
1015 Jpeg2000Component *comp = tile->comp + compno;
1016 int log_subsampling[2] = { (compno+1&2)?s->chroma_shift[0]:0, (compno+1&2)?s->chroma_shift[1]:0};
1017
1018 for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) {
1019 unsigned prcx, prcy;
1020 int precno;
1021 uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r
1022 Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
1023 int trx0, try0;
1024
1025 trx0 = ff_jpeg2000_ceildivpow2(tile_coord[0][0], log_subsampling[0] + reducedresno);
1026 try0 = ff_jpeg2000_ceildivpow2(tile_coord[1][0], log_subsampling[1] + reducedresno);
1027
1028 if (!(y % ((uint64_t)1 << (reslevel->log2_prec_height + reducedresno + log_subsampling[1])) == 0 ||
1029 (y == tile_coord[1][0] && (try0 << reducedresno) % (1U << (reducedresno + reslevel->log2_prec_height)))))
1030 continue;
1031
1032 if (!(x % ((uint64_t)1 << (reslevel->log2_prec_width + reducedresno + log_subsampling[0])) == 0 ||
1033 (x == tile_coord[0][0] && (trx0 << reducedresno) % (1U << (reducedresno + reslevel->log2_prec_width)))))
1034 continue;
1035
1036 // check if a precinct exists
1037 prcx = ff_jpeg2000_ceildivpow2(x, log_subsampling[0] + reducedresno) >> reslevel->log2_prec_width;
1038 prcy = ff_jpeg2000_ceildivpow2(y, log_subsampling[1] + reducedresno) >> reslevel->log2_prec_height;
1039 prcx -= ff_jpeg2000_ceildivpow2(comp->coord_o[0][0], reducedresno) >> reslevel->log2_prec_width;
1040 prcy -= ff_jpeg2000_ceildivpow2(comp->coord_o[1][0], reducedresno) >> reslevel->log2_prec_height;
1041
1042 precno = prcx + reslevel->num_precincts_x * prcy;
1043
1044 if (prcx >= reslevel->num_precincts_x || prcy >= reslevel->num_precincts_y) {
1045 av_log(s->avctx, AV_LOG_WARNING, "prc %d %d outside limits %d %d\n",
1046 prcx, prcy, reslevel->num_precincts_x, reslevel->num_precincts_y);
1047 continue;
1048 }
1049 for (layno = 0; layno < nlayers; layno++) {
1050 if ((ret = encode_packet(s, reslevel, layno, precno, qntsty->expn + (reslevelno ? 3*reslevelno-2 : 0),
1051 qntsty->nguardbits, packetno++, nlayers)) < 0)
1052 return ret;
1053 }
1054 }
1055 }
1056 }
1057 }
1058 break;
1059 case JPEG2000_PGOD_CPRL:
1060 for (compno = 0; compno < s->ncomponents; compno++) {
1061 Jpeg2000Component *comp = tile->comp + compno;
1062 int log_subsampling[2] = { (compno+1&2)?s->chroma_shift[0]:0, (compno+1&2)?s->chroma_shift[1]:0};
1063 step_x = 32;
1064 step_y = 32;
1065
1066 for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) {
1067 uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r
1068 Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno;
1069 step_x = FFMIN(step_x, rlevel->log2_prec_width + reducedresno);
1070 step_y = FFMIN(step_y, rlevel->log2_prec_height + reducedresno);
1071 }
1072 if (step_x >= 31 || step_y >= 31){
1073 avpriv_request_sample(s->avctx, "CPRL with large step");
1074 return AVERROR_PATCHWELCOME;
1075 }
1076 step_x = 1<<step_x;
1077 step_y = 1<<step_y;
1078
1079 for (y = tile_coord[1][0]; y < tile_coord[1][1]; y = (y/step_y + 1)*step_y) {
1080 for (x = tile_coord[0][0]; x < tile_coord[0][1]; x = (x/step_x + 1)*step_x) {
1081 for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++) {
1082 unsigned prcx, prcy;
1083 int precno;
1084 int trx0, try0;
1085 uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r
1086 Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
1087
1088 trx0 = ff_jpeg2000_ceildivpow2(tile_coord[0][0], log_subsampling[0] + reducedresno);
1089 try0 = ff_jpeg2000_ceildivpow2(tile_coord[1][0], log_subsampling[1] + reducedresno);
1090
1091 if (!(y % ((uint64_t)1 << (reslevel->log2_prec_height + reducedresno + log_subsampling[1])) == 0 ||
1092 (y == tile_coord[1][0] && (try0 << reducedresno) % (1U << (reducedresno + reslevel->log2_prec_height)))))
1093 continue;
1094
1095 if (!(x % ((uint64_t)1 << (reslevel->log2_prec_width + reducedresno + log_subsampling[0])) == 0 ||
1096 (x == tile_coord[0][0] && (trx0 << reducedresno) % (1U << (reducedresno + reslevel->log2_prec_width)))))
1097 continue;
1098
1099 // check if a precinct exists
1100 prcx = ff_jpeg2000_ceildivpow2(x, log_subsampling[0] + reducedresno) >> reslevel->log2_prec_width;
1101 prcy = ff_jpeg2000_ceildivpow2(y, log_subsampling[1] + reducedresno) >> reslevel->log2_prec_height;
1102 prcx -= ff_jpeg2000_ceildivpow2(comp->coord_o[0][0], reducedresno) >> reslevel->log2_prec_width;
1103 prcy -= ff_jpeg2000_ceildivpow2(comp->coord_o[1][0], reducedresno) >> reslevel->log2_prec_height;
1104
1105 precno = prcx + reslevel->num_precincts_x * prcy;
1106
1107 if (prcx >= reslevel->num_precincts_x || prcy >= reslevel->num_precincts_y) {
1108 av_log(s->avctx, AV_LOG_WARNING, "prc %d %d outside limits %d %d\n",
1109 prcx, prcy, reslevel->num_precincts_x, reslevel->num_precincts_y);
1110 continue;
1111 }
1112 for (layno = 0; layno < nlayers; layno++) {
1113 if ((ret = encode_packet(s, reslevel, layno, precno, qntsty->expn + (reslevelno ? 3*reslevelno-2 : 0),
1114 qntsty->nguardbits, packetno++, nlayers)) < 0)
1115 return ret;
1116 }
1117 }
1118 }
1119 }
1120 }
1121
1122 }
1123
1124 2600 av_log(s->avctx, AV_LOG_DEBUG, "after tier2\n");
1125 2600 return 0;
1126 }
1127
1128 static void makelayer(Jpeg2000EncoderContext *s, int layno, double thresh, Jpeg2000Tile* tile, int final)
1129 {
1130 int compno, resno, bandno, precno, cblkno;
1131 int passno;
1132
1133 for (compno = 0; compno < s->ncomponents; compno++) {
1134 Jpeg2000Component *comp = &tile->comp[compno];
1135
1136 for (resno = 0; resno < s->codsty.nreslevels; resno++) {
1137 Jpeg2000ResLevel *reslevel = comp->reslevel + resno;
1138
1139 for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
1140 for (bandno = 0; bandno < reslevel->nbands ; bandno++){
1141 Jpeg2000Band *band = reslevel->band + bandno;
1142 Jpeg2000Prec *prec = band->prec + precno;
1143
1144 for (cblkno = 0; cblkno < prec->nb_codeblocks_height * prec->nb_codeblocks_width; cblkno++){
1145 Jpeg2000Cblk *cblk = prec->cblk + cblkno;
1146 Jpeg2000Layer *layer = &cblk->layers[layno];
1147 int n;
1148
1149 if (layno == 0) {
1150 cblk->ninclpasses = 0;
1151 }
1152
1153 n = cblk->ninclpasses;
1154
1155 if (thresh < 0) {
1156 n = cblk->npasses;
1157 } else {
1158 for (passno = cblk->ninclpasses; passno < cblk->npasses; passno++) {
1159 int32_t dr;
1160 double dd;
1161 Jpeg2000Pass *pass = &cblk->passes[passno];
1162
1163 if (n == 0) {
1164 dr = pass->rate;
1165 dd = pass->disto;
1166 } else {
1167 dr = pass->rate - cblk->passes[n - 1].rate;
1168 dd = pass->disto - cblk->passes[n-1].disto;
1169 }
1170
1171 if (!dr) {
1172 if (dd != 0.0) {
1173 n = passno + 1;
1174 }
1175 continue;
1176 }
1177
1178 if (thresh - (dd / dr) < DBL_EPSILON)
1179 n = passno + 1;
1180 }
1181 }
1182 layer->npasses = n - cblk->ninclpasses;
1183 layer->cum_passes = n;
1184
1185 if (layer->npasses == 0) {
1186 layer->disto = 0;
1187 layer->data_len = 0;
1188 continue;
1189 }
1190
1191 if (cblk->ninclpasses == 0) {
1192 layer->data_len = cblk->passes[n - 1].rate;
1193 layer->data_start = cblk->data;
1194 layer->disto = cblk->passes[n - 1].disto;
1195 } else {
1196 layer->data_len = cblk->passes[n - 1].rate - cblk->passes[cblk->ninclpasses - 1].rate;
1197 layer->data_start = cblk->data + cblk->passes[cblk->ninclpasses - 1].rate;
1198 layer->disto = cblk->passes[n - 1].disto -
1199 cblk->passes[cblk->ninclpasses - 1].disto;
1200 }
1201 if (final) {
1202 cblk->ninclpasses = n;
1203 }
1204 }
1205 }
1206 }
1207 }
1208 }
1209 }
1210
1211 static void makelayers(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile)
1212 {
1213 int precno, compno, reslevelno, bandno, cblkno, passno, layno;
1214 int i;
1215 double min = DBL_MAX;
1216 double max = 0;
1217 double thresh;
1218
1219 Jpeg2000CodingStyle *codsty = &s->codsty;
1220
1221 for (compno = 0; compno < s->ncomponents; compno++){
1222 Jpeg2000Component *comp = tile->comp + compno;
1223
1224 for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
1225 Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
1226
1227 for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
1228 for (bandno = 0; bandno < reslevel->nbands ; bandno++){
1229 Jpeg2000Band *band = reslevel->band + bandno;
1230 Jpeg2000Prec *prec = band->prec + precno;
1231
1232 for (cblkno = 0; cblkno < prec->nb_codeblocks_height * prec->nb_codeblocks_width; cblkno++){
1233 Jpeg2000Cblk *cblk = prec->cblk + cblkno;
1234 for (passno = 0; passno < cblk->npasses; passno++) {
1235 Jpeg2000Pass *pass = &cblk->passes[passno];
1236 int dr;
1237 double dd, drslope;
1238
1239 if (passno == 0) {
1240 dr = (int32_t)pass->rate;
1241 dd = pass->disto;
1242 } else {
1243 dr = (int32_t)(pass->rate - cblk->passes[passno - 1].rate);
1244 dd = pass->disto - cblk->passes[passno - 1].disto;
1245 }
1246
1247 if (dr <= 0)
1248 continue;
1249
1250 drslope = dd / dr;
1251 if (drslope < min)
1252 min = drslope;
1253
1254 if (drslope > max)
1255 max = drslope;
1256 }
1257 }
1258 }
1259 }
1260 }
1261 }
1262
1263 for (layno = 0; layno < s->nlayers; layno++) {
1264 double lo = min;
1265 double hi = max;
1266 double stable_thresh = 0.0;
1267 double good_thresh = 0.0;
1268 if (!s->layer_rates[layno]) {
1269 good_thresh = -1.0;
1270 } else {
1271 for (i = 0; i < 128; i++) {
1272 uint8_t *stream_pos = s->buf;
1273 int ret;
1274 thresh = (lo + hi) / 2;
1275 makelayer(s, layno, thresh, tile, 0);
1276 ret = encode_packets(s, tile, (int)(tile - s->tile), layno + 1);
1277 memset(stream_pos, 0, s->buf - stream_pos);
1278 if ((s->buf - stream_pos > ceil(tile->layer_rates[layno])) || ret < 0) {
1279 lo = thresh;
1280 s->buf = stream_pos;
1281 continue;
1282 }
1283 hi = thresh;
1284 stable_thresh = thresh;
1285 s->buf = stream_pos;
1286 }
1287 }
1288 if (good_thresh >= 0.0)
1289 good_thresh = stable_thresh == 0.0 ? thresh : stable_thresh;
1290 makelayer(s, layno, good_thresh, tile, 1);
1291 }
1292 }
1293
1294 903500 static int getcut(Jpeg2000Cblk *cblk, uint64_t lambda)
1295 {
1296 903500 int passno, res = 0;
1297
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✓ Branch 1 taken 903500 times.
21698778 for (passno = 0; passno < cblk->npasses; passno++){
1298 int dr;
1299 int64_t dd;
1300
1301 41590556 dr = cblk->passes[passno].rate
1302
2/2
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✓ Branch 1 taken 1134669 times.
20795278 - (res ? cblk->passes[res-1].rate : 0);
1303 41590556 dd = cblk->passes[passno].disto
1304
2/2
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20795278 - (res ? cblk->passes[res-1].disto : 0);
1305
1306
2/2
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✓ Branch 1 taken 9490460 times.
20795278 if (dd >= dr * lambda)
1307 11304818 res = passno+1;
1308 }
1309 903500 return res;
1310 }
1311
1312 2600 static void truncpasses(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile)
1313 {
1314 int precno, compno, reslevelno, bandno, cblkno, lev;
1315 2600 Jpeg2000CodingStyle *codsty = &s->codsty;
1316
1317
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11050 for (compno = 0; compno < s->ncomponents; compno++){
1318 8450 Jpeg2000Component *comp = tile->comp + compno;
1319
1320
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67600 for (reslevelno = 0, lev = codsty->nreslevels-1; reslevelno < codsty->nreslevels; reslevelno++, lev--){
1321 59150 Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
1322
1323
2/2
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118300 for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
1324
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219700 for (bandno = 0; bandno < reslevel->nbands ; bandno++){
1325 160550 int bandpos = bandno + (reslevelno > 0);
1326 160550 Jpeg2000Band *band = reslevel->band + bandno;
1327 160550 Jpeg2000Prec *prec = band->prec + precno;
1328
1329 160550 int64_t dwt_norm = dwt_norms[codsty->transform == FF_DWT53][bandpos][lev] * (int64_t)band->i_stepsize >> 15;
1330 160550 int64_t lambda_prime = av_rescale(s->lambda, 1 << WMSEDEC_SHIFT, dwt_norm * dwt_norm);
1331
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1064050 for (cblkno = 0; cblkno < prec->nb_codeblocks_height * prec->nb_codeblocks_width; cblkno++){
1332 903500 Jpeg2000Cblk *cblk = prec->cblk + cblkno;
1333
1334 903500 cblk->ninclpasses = getcut(cblk, lambda_prime);
1335 903500 cblk->layers[0].data_start = cblk->data;
1336 903500 cblk->layers[0].cum_passes = cblk->ninclpasses;
1337 903500 cblk->layers[0].npasses = cblk->ninclpasses;
1338
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903500 if (cblk->ninclpasses)
1339 794793 cblk->layers[0].data_len = cblk->passes[cblk->ninclpasses - 1].rate;
1340 }
1341 }
1342 }
1343 }
1344 }
1345 2600 }
1346
1347 2600 static int encode_tile(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile, int tileno)
1348 {
1349 int compno, reslevelno, bandno, ret;
1350 Jpeg2000T1Context t1;
1351 2600 Jpeg2000CodingStyle *codsty = &s->codsty;
1352
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11050 for (compno = 0; compno < s->ncomponents; compno++){
1353 8450 Jpeg2000Component *comp = s->tile[tileno].comp + compno;
1354
1355 8450 t1.stride = (1<<codsty->log2_cblk_width) + 2;
1356
1357 8450 av_log(s->avctx, AV_LOG_DEBUG,"dwt\n");
1358
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✓ Branch 2 taken 8450 times.
8450 if ((ret = ff_dwt_encode(&comp->dwt, comp->i_data)) < 0)
1359 return ret;
1360 8450 av_log(s->avctx, AV_LOG_DEBUG,"after dwt -> tier1\n");
1361
1362
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67600 for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
1363 59150 Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
1364
1365
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219700 for (bandno = 0; bandno < reslevel->nbands ; bandno++){
1366 160550 Jpeg2000Band *band = reslevel->band + bandno;
1367 160550 Jpeg2000Prec *prec = band->prec; // we support only 1 precinct per band ATM in the encoder
1368 160550 int cblkx, cblky, cblkno=0, xx0, x0, xx1, y0, yy0, yy1, bandpos;
1369
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160550 yy0 = bandno == 0 ? 0 : comp->reslevel[reslevelno-1].coord[1][1] - comp->reslevel[reslevelno-1].coord[1][0];
1370 160550 y0 = yy0;
1371
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✓ Branch 2 taken 60450 times.
160550 yy1 = FFMIN(ff_jpeg2000_ceildivpow2(band->coord[1][0] + 1, band->log2_cblk_height) << band->log2_cblk_height,
1372 160550 band->coord[1][1]) - band->coord[1][0] + yy0;
1373
1374
3/4
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✗ Branch 1 not taken.
✓ Branch 2 taken 7800 times.
✓ Branch 3 taken 152750 times.
160550 if (band->coord[0][0] == band->coord[0][1] || band->coord[1][0] == band->coord[1][1])
1375 7800 continue;
1376
1377 152750 bandpos = bandno + (reslevelno > 0);
1378
1379
2/2
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436150 for (cblky = 0; cblky < prec->nb_codeblocks_height; cblky++){
1380
4/4
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✓ Branch 1 taken 8450 times.
✓ Branch 2 taken 90350 times.
✓ Branch 3 taken 184600 times.
283400 if (reslevelno == 0 || bandno == 1)
1381 98800 xx0 = 0;
1382 else
1383 184600 xx0 = comp->reslevel[reslevelno-1].coord[0][1] - comp->reslevel[reslevelno-1].coord[0][0];
1384 283400 x0 = xx0;
1385
2/2
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✓ Branch 2 taken 196950 times.
283400 xx1 = FFMIN(ff_jpeg2000_ceildivpow2(band->coord[0][0] + 1, band->log2_cblk_width) << band->log2_cblk_width,
1386 283400 band->coord[0][1]) - band->coord[0][0] + xx0;
1387
1388
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1179100 for (cblkx = 0; cblkx < prec->nb_codeblocks_width; cblkx++, cblkno++){
1389 int y, x;
1390
2/2
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✓ Branch 1 taken 206700 times.
895700 if (codsty->transform == FF_DWT53){
1391
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✓ Branch 1 taken 689000 times.
10621500 for (y = yy0; y < yy1; y++){
1392 9932500 int *ptr = t1.data + (y-yy0)*t1.stride;
1393
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✓ Branch 1 taken 9932500 times.
162574500 for (x = xx0; x < xx1; x++){
1394 152642000 *ptr++ = comp->i_data[(comp->coord[0][1] - comp->coord[0][0]) * y + x] * (1 << NMSEDEC_FRACBITS);
1395 }
1396 }
1397 } else{
1398 206700 int64_t multiplier = (int64_t)(16384 * 65536 / band->i_stepsize);
1399
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✓ Branch 1 taken 206700 times.
3186450 for (y = yy0; y < yy1; y++){
1400 2979750 int *ptr = t1.data + (y-yy0)*t1.stride;
1401
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48772350 for (x = xx0; x < xx1; x++){
1402 45792600 *ptr = (comp->i_data[(comp->coord[0][1] - comp->coord[0][0]) * y + x]);
1403 45792600 *ptr = (int64_t)*ptr * multiplier >> 15 - NMSEDEC_FRACBITS;
1404 45792600 ptr++;
1405 }
1406 }
1407 }
1408
2/2
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✓ Branch 1 taken 877786 times.
895700 if (!prec->cblk[cblkno].data)
1409 17914 prec->cblk[cblkno].data = av_malloc(1 + 8192);
1410
2/2
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895700 if (!prec->cblk[cblkno].passes)
1411 17914 prec->cblk[cblkno].passes = av_malloc_array(JPEG2000_MAX_PASSES, sizeof (*prec->cblk[cblkno].passes));
1412
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✗ Branch 1 not taken.
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895700 if (!prec->cblk[cblkno].data || !prec->cblk[cblkno].passes)
1413 return AVERROR(ENOMEM);
1414 895700 encode_cblk(s, &t1, prec->cblk + cblkno, tile, xx1 - xx0, yy1 - yy0,
1415 895700 bandpos, codsty->nreslevels - reslevelno - 1);
1416 895700 xx0 = xx1;
1417 895700 xx1 = FFMIN(xx1 + (1 << band->log2_cblk_width), band->coord[0][1] - band->coord[0][0] + x0);
1418 }
1419 283400 yy0 = yy1;
1420 283400 yy1 = FFMIN(yy1 + (1 << band->log2_cblk_height), band->coord[1][1] - band->coord[1][0] + y0);
1421 }
1422 }
1423 }
1424 8450 av_log(s->avctx, AV_LOG_DEBUG, "after tier1\n");
1425 }
1426
1427 2600 av_log(s->avctx, AV_LOG_DEBUG, "rate control\n");
1428
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✓ Branch 1 taken 2600 times.
2600 if (s->compression_rate_enc)
1429 makelayers(s, tile);
1430 else
1431 2600 truncpasses(s, tile);
1432
1433
1/2
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2600 if ((ret = encode_packets(s, tile, tileno, s->nlayers)) < 0)
1434 return ret;
1435 2600 av_log(s->avctx, AV_LOG_DEBUG, "after rate control\n");
1436 2600 return 0;
1437 }
1438
1439 16 static void cleanup(Jpeg2000EncoderContext *s)
1440 {
1441 int tileno, compno;
1442 16 Jpeg2000CodingStyle *codsty = &s->codsty;
1443
1444
1/2
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✓ Branch 1 taken 16 times.
16 if (!s->tile)
1445 return;
1446
2/2
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✓ Branch 1 taken 16 times.
68 for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
1447
1/2
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✗ Branch 1 not taken.
52 if (s->tile[tileno].comp) {
1448
2/2
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✓ Branch 1 taken 52 times.
221 for (compno = 0; compno < s->ncomponents; compno++){
1449 169 Jpeg2000Component *comp = s->tile[tileno].comp + compno;
1450 169 ff_jpeg2000_cleanup(comp, codsty);
1451 }
1452 52 av_freep(&s->tile[tileno].comp);
1453 }
1454 52 av_freep(&s->tile[tileno].layer_rates);
1455 }
1456 16 av_freep(&s->tile);
1457 }
1458
1459 800 static void reinit(Jpeg2000EncoderContext *s)
1460 {
1461 int tileno, compno;
1462
2/2
✓ Branch 0 taken 2600 times.
✓ Branch 1 taken 800 times.
3400 for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
1463 2600 Jpeg2000Tile *tile = s->tile + tileno;
1464
2/2
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✓ Branch 1 taken 2600 times.
11050 for (compno = 0; compno < s->ncomponents; compno++)
1465 8450 ff_jpeg2000_reinit(tile->comp + compno, &s->codsty);
1466 }
1467 800 }
1468
1469 4000 static void update_size(uint8_t *size, const uint8_t *end)
1470 {
1471 4000 AV_WB32(size, end-size);
1472 4000 }
1473
1474 800 static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
1475 const AVFrame *pict, int *got_packet)
1476 {
1477 int tileno, ret;
1478 800 Jpeg2000EncoderContext *s = avctx->priv_data;
1479 uint8_t *chunkstart, *jp2cstart, *jp2hstart;
1480 800 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
1481
1482
1/2
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✓ Branch 2 taken 800 times.
800 if ((ret = ff_alloc_packet(avctx, pkt, avctx->width*avctx->height*9 + FF_INPUT_BUFFER_MIN_SIZE)) < 0)
1483 return ret;
1484
1485 // init:
1486 800 s->buf = s->buf_start = pkt->data;
1487 800 s->buf_end = pkt->data + pkt->size;
1488
1489 800 s->picture = pict;
1490
1491 800 s->lambda = s->picture->quality * LAMBDA_SCALE;
1492
1493
2/2
✓ Branch 0 taken 400 times.
✓ Branch 1 taken 400 times.
800 if (s->cbps[0] > 8)
1494 400 copy_frame_16(s);
1495 else
1496 400 copy_frame_8(s);
1497
1498 800 reinit(s);
1499
1500
1/2
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✗ Branch 1 not taken.
800 if (s->format == CODEC_JP2) {
1501
1/2
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✓ Branch 1 taken 800 times.
800 av_assert0(s->buf == pkt->data);
1502
1503 800 bytestream_put_be32(&s->buf, 0x0000000C);
1504 800 bytestream_put_be32(&s->buf, 0x6A502020);
1505 800 bytestream_put_be32(&s->buf, 0x0D0A870A);
1506
1507 800 chunkstart = s->buf;
1508 800 bytestream_put_be32(&s->buf, 0);
1509 800 bytestream_put_buffer(&s->buf, "ftyp", 4);
1510 800 bytestream_put_buffer(&s->buf, "jp2\040\040", 4);
1511 800 bytestream_put_be32(&s->buf, 0);
1512 800 bytestream_put_buffer(&s->buf, "jp2\040", 4);
1513 800 update_size(chunkstart, s->buf);
1514
1515 800 jp2hstart = s->buf;
1516 800 bytestream_put_be32(&s->buf, 0);
1517 800 bytestream_put_buffer(&s->buf, "jp2h", 4);
1518
1519 800 chunkstart = s->buf;
1520 800 bytestream_put_be32(&s->buf, 0);
1521 800 bytestream_put_buffer(&s->buf, "ihdr", 4);
1522 800 bytestream_put_be32(&s->buf, avctx->height);
1523 800 bytestream_put_be32(&s->buf, avctx->width);
1524 800 bytestream_put_be16(&s->buf, s->ncomponents);
1525 800 bytestream_put_byte(&s->buf, s->cbps[0]);
1526 800 bytestream_put_byte(&s->buf, 7);
1527 800 bytestream_put_byte(&s->buf, 0);
1528 800 bytestream_put_byte(&s->buf, 0);
1529 800 update_size(chunkstart, s->buf);
1530
1531 800 chunkstart = s->buf;
1532 800 bytestream_put_be32(&s->buf, 0);
1533 800 bytestream_put_buffer(&s->buf, "colr", 4);
1534 800 bytestream_put_byte(&s->buf, 1);
1535 800 bytestream_put_byte(&s->buf, 0);
1536 800 bytestream_put_byte(&s->buf, 0);
1537
3/4
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✓ Branch 1 taken 600 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 200 times.
800 if ((desc->flags & AV_PIX_FMT_FLAG_RGB) || avctx->pix_fmt == AV_PIX_FMT_PAL8) {
1538 600 bytestream_put_be32(&s->buf, 16);
1539
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 200 times.
200 } else if (s->ncomponents == 1) {
1540 bytestream_put_be32(&s->buf, 17);
1541 } else {
1542 200 bytestream_put_be32(&s->buf, 18);
1543 }
1544 800 update_size(chunkstart, s->buf);
1545
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✓ Branch 1 taken 800 times.
800 if (avctx->pix_fmt == AV_PIX_FMT_PAL8) {
1546 int i;
1547 const uint8_t *palette = pict->data[1];
1548 chunkstart = s->buf;
1549 bytestream_put_be32(&s->buf, 0);
1550 bytestream_put_buffer(&s->buf, "pclr", 4);
1551 bytestream_put_be16(&s->buf, AVPALETTE_COUNT);
1552 bytestream_put_byte(&s->buf, 3); // colour channels
1553 bytestream_put_be24(&s->buf, 0x070707); //colour depths
1554 for (i = 0; i < AVPALETTE_COUNT; i++) {
1555 bytestream_put_be24(&s->buf, HAVE_BIGENDIAN ? AV_RB24(palette + 1) : AV_RL24(palette));
1556 palette += 4;
1557 }
1558 update_size(chunkstart, s->buf);
1559 chunkstart = s->buf;
1560 bytestream_put_be32(&s->buf, 0);
1561 bytestream_put_buffer(&s->buf, "cmap", 4);
1562 for (i = 0; i < 3; i++) {
1563 bytestream_put_be16(&s->buf, 0); // component
1564 bytestream_put_byte(&s->buf, 1); // palette mapping
1565 bytestream_put_byte(&s->buf, i); // index
1566 }
1567 update_size(chunkstart, s->buf);
1568 }
1569 800 update_size(jp2hstart, s->buf);
1570
1571 800 jp2cstart = s->buf;
1572 800 bytestream_put_be32(&s->buf, 0);
1573 800 bytestream_put_buffer(&s->buf, "jp2c", 4);
1574 }
1575
1576
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800 if (s->buf_end - s->buf < 2)
1577 return -1;
1578 800 bytestream_put_be16(&s->buf, JPEG2000_SOC);
1579
1/2
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800 if ((ret = put_siz(s)) < 0)
1580 return ret;
1581
1/2
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800 if ((ret = put_cod(s)) < 0)
1582 return ret;
1583
1/2
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800 if ((ret = put_qcd(s, 0)) < 0)
1584 return ret;
1585
1/2
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800 if ((ret = put_com(s, 0)) < 0)
1586 return ret;
1587
1588
2/2
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3400 for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
1589 uint8_t *psotptr;
1590
1/2
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2600 if (!(psotptr = put_sot(s, tileno)))
1591 return -1;
1592
1/2
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2600 if (s->buf_end - s->buf < 2)
1593 return -1;
1594 2600 bytestream_put_be16(&s->buf, JPEG2000_SOD);
1595
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2600 if ((ret = encode_tile(s, s->tile + tileno, tileno)) < 0)
1596 return ret;
1597 2600 bytestream_put_be32(&psotptr, s->buf - psotptr + 6);
1598 }
1599
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800 if (s->buf_end - s->buf < 2)
1600 return -1;
1601 800 bytestream_put_be16(&s->buf, JPEG2000_EOC);
1602
1603
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800 if (s->format == CODEC_JP2)
1604 800 update_size(jp2cstart, s->buf);
1605
1606 800 av_log(s->avctx, AV_LOG_DEBUG, "end\n");
1607 800 pkt->size = s->buf - s->buf_start;
1608 800 *got_packet = 1;
1609
1610 800 return 0;
1611 }
1612
1613 16 static int parse_layer_rates(Jpeg2000EncoderContext *s)
1614 {
1615 int i;
1616 char *token;
1617 16 char *saveptr = NULL;
1618 int rate;
1619 16 int nlayers = 0;
1620
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16 if (!s->lr_str) {
1621 16 s->nlayers = 1;
1622 16 s->layer_rates[0] = 0;
1623 16 s->compression_rate_enc = 0;
1624 16 return 0;
1625 }
1626
1627 token = av_strtok(s->lr_str, ",", &saveptr);
1628 if (token && (rate = strtol(token, NULL, 10))) {
1629 s->layer_rates[0] = rate <= 1 ? 0:rate;
1630 nlayers++;
1631 } else {
1632 return AVERROR_INVALIDDATA;
1633 }
1634
1635 while (1) {
1636 token = av_strtok(NULL, ",", &saveptr);
1637 if (!token)
1638 break;
1639 if (rate = strtol(token, NULL, 10)) {
1640 if (nlayers >= 100) {
1641 return AVERROR_INVALIDDATA;
1642 }
1643 s->layer_rates[nlayers] = rate <= 1 ? 0:rate;
1644 nlayers++;
1645 } else {
1646 return AVERROR_INVALIDDATA;
1647 }
1648 }
1649
1650 for (i = 1; i < nlayers; i++) {
1651 if (s->layer_rates[i] >= s->layer_rates[i-1]) {
1652 return AVERROR_INVALIDDATA;
1653 }
1654 }
1655 s->nlayers = nlayers;
1656 s->compression_rate_enc = 1;
1657 return 0;
1658 }
1659
1660 16 static av_cold int j2kenc_init(AVCodecContext *avctx)
1661 {
1662 static AVOnce init_static_once = AV_ONCE_INIT;
1663 int i, ret;
1664 16 Jpeg2000EncoderContext *s = avctx->priv_data;
1665 16 Jpeg2000CodingStyle *codsty = &s->codsty;
1666 16 Jpeg2000QuantStyle *qntsty = &s->qntsty;
1667 16 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
1668
1669 16 s->avctx = avctx;
1670 16 av_log(s->avctx, AV_LOG_DEBUG, "init\n");
1671
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16 if (parse_layer_rates(s)) {
1672 av_log(avctx, AV_LOG_WARNING, "Layer rates invalid. Encoding with 1 layer based on quality metric.\n");
1673 s->nlayers = 1;
1674 s->layer_rates[0] = 0;
1675 s->compression_rate_enc = 0;
1676 }
1677
1678
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16 if (avctx->pix_fmt == AV_PIX_FMT_PAL8 && (s->pred != FF_DWT97_INT || s->format != CODEC_JP2)) {
1679 av_log(s->avctx, AV_LOG_WARNING, "Forcing lossless jp2 for pal8\n");
1680 s->pred = 1;
1681 s->format = CODEC_JP2;
1682 }
1683
1684 // defaults:
1685 // TODO: implement setting non-standard precinct size
1686 16 memset(codsty->log2_prec_widths , 15, sizeof(codsty->log2_prec_widths ));
1687 16 memset(codsty->log2_prec_heights, 15, sizeof(codsty->log2_prec_heights));
1688 16 codsty->nreslevels2decode=
1689 16 codsty->nreslevels = 7;
1690 16 codsty->nlayers = s->nlayers;
1691 16 codsty->log2_cblk_width = 4;
1692 16 codsty->log2_cblk_height = 4;
1693
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16 codsty->transform = s->pred ? FF_DWT53 : FF_DWT97_INT;
1694
1695 16 qntsty->nguardbits = 1;
1696
1697
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16 if ((s->tile_width & (s->tile_width -1)) ||
1698
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16 (s->tile_height & (s->tile_height-1))) {
1699 av_log(avctx, AV_LOG_WARNING, "Tile dimension not a power of 2\n");
1700 }
1701
1702
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16 if (codsty->transform == FF_DWT53)
1703 12 qntsty->quantsty = JPEG2000_QSTY_NONE;
1704 else
1705 4 qntsty->quantsty = JPEG2000_QSTY_SE;
1706
1707 16 s->width = avctx->width;
1708 16 s->height = avctx->height;
1709
1710 16 s->ncomponents = desc->nb_components;
1711
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80 for (i = 0; i < 4; i++) {
1712 64 s->cbps[i] = desc->comp[i].depth;
1713 64 s->comp_remap[i] = i; //default
1714 }
1715
1716
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16 if ((desc->flags & AV_PIX_FMT_FLAG_PLANAR) && s->ncomponents > 1) {
1717 8 s->planar = 1;
1718 8 ret = av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt,
1719 8 s->chroma_shift, s->chroma_shift + 1);
1720
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8 if (ret)
1721 return ret;
1722
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8 if (desc->flags & AV_PIX_FMT_FLAG_RGB) {
1723 4 s->comp_remap[0] = 2;
1724 4 s->comp_remap[1] = 0;
1725 4 s->comp_remap[2] = 1;
1726 }
1727 }
1728
1729 16 ff_thread_once(&init_static_once, init_luts);
1730
1731 16 init_quantization(s);
1732
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16 if ((ret=init_tiles(s)) < 0)
1733 return ret;
1734
1735 16 av_log(s->avctx, AV_LOG_DEBUG, "after init\n");
1736
1737 16 return 0;
1738 }
1739
1740 16 static int j2kenc_destroy(AVCodecContext *avctx)
1741 {
1742 16 Jpeg2000EncoderContext *s = avctx->priv_data;
1743
1744 16 cleanup(s);
1745 16 return 0;
1746 }
1747
1748 // taken from the libopenjpeg wrapper so it matches
1749
1750 #define OFFSET(x) offsetof(Jpeg2000EncoderContext, x)
1751 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
1752 static const AVOption options[] = {
1753 { "format", "Codec Format", OFFSET(format), AV_OPT_TYPE_INT, { .i64 = CODEC_JP2 }, CODEC_J2K, CODEC_JP2, VE, .unit = "format" },
1754 { "j2k", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CODEC_J2K }, 0, 0, VE, .unit = "format" },
1755 { "jp2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CODEC_JP2 }, 0, 0, VE, .unit = "format" },
1756 { "tile_width", "Tile Width", OFFSET(tile_width), AV_OPT_TYPE_INT, { .i64 = 256 }, 1, 1<<30, VE, },
1757 { "tile_height", "Tile Height", OFFSET(tile_height), AV_OPT_TYPE_INT, { .i64 = 256 }, 1, 1<<30, VE, },
1758 { "pred", "DWT Type", OFFSET(pred), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE, .unit = "pred" },
1759 { "dwt97int", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, .unit = "pred" },
1760 { "dwt53", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, VE, .unit = "pred" },
1761 { "sop", "SOP marker", OFFSET(sop), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE, },
1762 { "eph", "EPH marker", OFFSET(eph), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE, },
1763 { "prog", "Progression Order", OFFSET(prog), AV_OPT_TYPE_INT, { .i64 = 0 }, JPEG2000_PGOD_LRCP, JPEG2000_PGOD_CPRL, VE, .unit = "prog" },
1764 { "lrcp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = JPEG2000_PGOD_LRCP }, 0, 0, VE, .unit = "prog" },
1765 { "rlcp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = JPEG2000_PGOD_RLCP }, 0, 0, VE, .unit = "prog" },
1766 { "rpcl", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = JPEG2000_PGOD_RPCL }, 0, 0, VE, .unit = "prog" },
1767 { "pcrl", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = JPEG2000_PGOD_PCRL }, 0, 0, VE, .unit = "prog" },
1768 { "cprl", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = JPEG2000_PGOD_CPRL }, 0, 0, VE, .unit = "prog" },
1769 { "layer_rates", "Layer Rates", OFFSET(lr_str), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, VE },
1770 { NULL }
1771 };
1772
1773 static const AVClass j2k_class = {
1774 .class_name = "jpeg 2000 encoder",
1775 .item_name = av_default_item_name,
1776 .option = options,
1777 .version = LIBAVUTIL_VERSION_INT,
1778 };
1779
1780 const FFCodec ff_jpeg2000_encoder = {
1781 .p.name = "jpeg2000",
1782 CODEC_LONG_NAME("JPEG 2000"),
1783 .p.type = AVMEDIA_TYPE_VIDEO,
1784 .p.id = AV_CODEC_ID_JPEG2000,
1785 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE |
1786 AV_CODEC_CAP_FRAME_THREADS,
1787 .priv_data_size = sizeof(Jpeg2000EncoderContext),
1788 .init = j2kenc_init,
1789 FF_CODEC_ENCODE_CB(encode_frame),
1790 .close = j2kenc_destroy,
1791 CODEC_PIXFMTS(
1792 AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB48,
1793 AV_PIX_FMT_GBR24P,AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
1794 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
1795 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV420P16,
1796 AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV422P16,
1797 AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV444P16,
1798 AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV440P10, AV_PIX_FMT_YUV440P12,
1799 AV_PIX_FMT_YUV411P,
1800 AV_PIX_FMT_YUV410P,
1801 AV_PIX_FMT_YA8, AV_PIX_FMT_YA16,
1802 AV_PIX_FMT_RGBA, AV_PIX_FMT_RGBA64,
1803 AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
1804 AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16,
1805 AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P16,
1806 AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P16,
1807
1808 AV_PIX_FMT_PAL8),
1809 .color_ranges = AVCOL_RANGE_MPEG,
1810 .p.priv_class = &j2k_class,
1811 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
1812 };
1813