2 * JPEG2000 image encoder
3 * Copyright (c) 2007 Kamil Nowosad
5 * This file is part of FFmpeg.
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.
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.
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
21 * **********************************************************************************************************************
25 * This source code incorporates work covered by the following copyright and
28 * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
29 * Copyright (c) 2002-2007, Professor Benoit Macq
30 * Copyright (c) 2001-2003, David Janssens
31 * Copyright (c) 2002-2003, Yannick Verschueren
32 * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
33 * Copyright (c) 2005, Herve Drolon, FreeImage Team
34 * Copyright (c) 2007, Callum Lerwick <seg@haxxed.com>
35 * All rights reserved.
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
40 * 1. Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * 2. Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in the
44 * documentation and/or other materials provided with the distribution.
46 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
47 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
48 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
49 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
50 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
51 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
52 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
53 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
54 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
55 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
56 * POSSIBILITY OF SUCH DAMAGE.
61 * JPEG2000 image encoder
63 * @author Kamil Nowosad
69 #include "bytestream.h"
71 #include "libavutil/common.h"
72 #include "libavutil/pixdesc.h"
73 #include "libavutil/opt.h"
74 #include "libavutil/intreadwrite.h"
76 #define NMSEDEC_BITS 7
77 #define NMSEDEC_FRACBITS (NMSEDEC_BITS-1)
78 #define WMSEDEC_SHIFT 13 ///< must be >= 13
79 #define LAMBDA_SCALE (100000000LL << (WMSEDEC_SHIFT - 13))
84 static int lut_nmsedec_ref [1<<NMSEDEC_BITS],
85 lut_nmsedec_ref0[1<<NMSEDEC_BITS],
86 lut_nmsedec_sig [1<<NMSEDEC_BITS],
87 lut_nmsedec_sig0[1<<NMSEDEC_BITS];
89 static const int dwt_norms[2][4][10] = { // [dwt_type][band][rlevel] (multiplied by 10000)
90 {{10000, 19650, 41770, 84030, 169000, 338400, 676900, 1353000, 2706000, 5409000},
91 {20220, 39890, 83550, 170400, 342700, 686300, 1373000, 2746000, 5490000},
92 {20220, 39890, 83550, 170400, 342700, 686300, 1373000, 2746000, 5490000},
93 {20800, 38650, 83070, 171800, 347100, 695900, 1393000, 2786000, 5572000}},
95 {{10000, 15000, 27500, 53750, 106800, 213400, 426700, 853300, 1707000, 3413000},
96 {10380, 15920, 29190, 57030, 113300, 226400, 452500, 904800, 1809000},
97 {10380, 15920, 29190, 57030, 113300, 226400, 452500, 904800, 1809000},
98 { 7186, 9218, 15860, 30430, 60190, 120100, 240000, 479700, 959300}}
102 Jpeg2000Component *comp;
107 AVCodecContext *avctx;
108 const AVFrame *picture;
110 int width, height; ///< image width and height
111 uint8_t cbps[4]; ///< bits per sample in particular components
115 int tile_width, tile_height; ///< tile size
116 int numXtiles, numYtiles;
125 Jpeg2000CodingStyle codsty;
126 Jpeg2000QuantStyle qntsty;
132 } Jpeg2000EncoderContext;
140 static void nspaces(FILE *fd, int n)
142 while(n--) putc(' ', fd);
145 static void printcomp(Jpeg2000Component *comp)
148 for (i = 0; i < comp->y1 - comp->y0; i++)
149 ff_jpeg2000_printv(comp->i_data + i * (comp->x1 - comp->x0), comp->x1 - comp->x0);
152 static void dump(Jpeg2000EncoderContext *s, FILE *fd)
154 int tileno, compno, reslevelno, bandno, precno;
155 fprintf(fd, "XSiz = %d, YSiz = %d, tile_width = %d, tile_height = %d\n"
156 "numXtiles = %d, numYtiles = %d, ncomponents = %d\n"
158 s->width, s->height, s->tile_width, s->tile_height,
159 s->numXtiles, s->numYtiles, s->ncomponents);
160 for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
161 Jpeg2000Tile *tile = s->tile + tileno;
163 fprintf(fd, "tile %d:\n", tileno);
164 for(compno = 0; compno < s->ncomponents; compno++){
165 Jpeg2000Component *comp = tile->comp + compno;
167 fprintf(fd, "component %d:\n", compno);
169 fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d\n",
170 comp->x0, comp->x1, comp->y0, comp->y1);
171 for(reslevelno = 0; reslevelno < s->nreslevels; reslevelno++){
172 Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
174 fprintf(fd, "reslevel %d:\n", reslevelno);
176 fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d, nbands = %d\n",
177 reslevel->x0, reslevel->x1, reslevel->y0,
178 reslevel->y1, reslevel->nbands);
179 for(bandno = 0; bandno < reslevel->nbands; bandno++){
180 Jpeg2000Band *band = reslevel->band + bandno;
182 fprintf(fd, "band %d:\n", bandno);
184 fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d,"
185 "codeblock_width = %d, codeblock_height = %d cblknx = %d cblkny = %d\n",
188 band->codeblock_width, band->codeblock_height,
189 band->cblknx, band->cblkny);
190 for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
191 Jpeg2000Prec *prec = band->prec + precno;
193 fprintf(fd, "prec %d:\n", precno);
195 fprintf(fd, "xi0 = %d, xi1 = %d, yi0 = %d, yi1 = %d\n",
196 prec->xi0, prec->xi1, prec->yi0, prec->yi1);
205 /* bitstream routines */
207 /** put n times val bit */
208 static void put_bits(Jpeg2000EncoderContext *s, int val, int n) // TODO: optimize
211 if (s->bit_index == 8)
213 s->bit_index = *s->buf == 0xff;
216 *s->buf |= val << (7 - s->bit_index++);
220 /** put n least significant bits of a number num */
221 static void put_num(Jpeg2000EncoderContext *s, int num, int n)
224 put_bits(s, (num >> n) & 1, 1);
227 /** flush the bitstream */
228 static void j2k_flush(Jpeg2000EncoderContext *s)
236 /* tag tree routines */
238 /** code the value stored in node */
239 static void tag_tree_code(Jpeg2000EncoderContext *s, Jpeg2000TgtNode *node, int threshold)
241 Jpeg2000TgtNode *stack[30];
242 int sp = 1, curval = 0;
256 if (stack[sp]->val >= threshold){
257 put_bits(s, 0, threshold - curval);
260 put_bits(s, 0, stack[sp]->val - curval);
262 curval = stack[sp]->val;
266 /** update the value in node */
267 static void tag_tree_update(Jpeg2000TgtNode *node)
270 while (node->parent){
271 if (node->parent->val <= node->val)
273 node->parent->val = node->val;
279 static int put_siz(Jpeg2000EncoderContext *s)
283 if (s->buf_end - s->buf < 40 + 3 * s->ncomponents)
286 bytestream_put_be16(&s->buf, JPEG2000_SIZ);
287 bytestream_put_be16(&s->buf, 38 + 3 * s->ncomponents); // Lsiz
288 bytestream_put_be16(&s->buf, 0); // Rsiz
289 bytestream_put_be32(&s->buf, s->width); // width
290 bytestream_put_be32(&s->buf, s->height); // height
291 bytestream_put_be32(&s->buf, 0); // X0Siz
292 bytestream_put_be32(&s->buf, 0); // Y0Siz
294 bytestream_put_be32(&s->buf, s->tile_width); // XTSiz
295 bytestream_put_be32(&s->buf, s->tile_height); // YTSiz
296 bytestream_put_be32(&s->buf, 0); // XT0Siz
297 bytestream_put_be32(&s->buf, 0); // YT0Siz
298 bytestream_put_be16(&s->buf, s->ncomponents); // CSiz
300 for (i = 0; i < s->ncomponents; i++){ // Ssiz_i XRsiz_i, YRsiz_i
301 bytestream_put_byte(&s->buf, 7);
302 bytestream_put_byte(&s->buf, i?1<<s->chroma_shift[0]:1);
303 bytestream_put_byte(&s->buf, i?1<<s->chroma_shift[1]:1);
308 static int put_cod(Jpeg2000EncoderContext *s)
310 Jpeg2000CodingStyle *codsty = &s->codsty;
312 if (s->buf_end - s->buf < 14)
315 bytestream_put_be16(&s->buf, JPEG2000_COD);
316 bytestream_put_be16(&s->buf, 12); // Lcod
317 bytestream_put_byte(&s->buf, 0); // Scod
319 bytestream_put_byte(&s->buf, 0); // progression level
320 bytestream_put_be16(&s->buf, 1); // num of layers
321 if(s->avctx->pix_fmt == AV_PIX_FMT_YUV444P){
322 bytestream_put_byte(&s->buf, 0); // unspecified
324 bytestream_put_byte(&s->buf, 0); // unspecified
327 bytestream_put_byte(&s->buf, codsty->nreslevels - 1); // num of decomp. levels
328 bytestream_put_byte(&s->buf, codsty->log2_cblk_width-2); // cblk width
329 bytestream_put_byte(&s->buf, codsty->log2_cblk_height-2); // cblk height
330 bytestream_put_byte(&s->buf, 0); // cblk style
331 bytestream_put_byte(&s->buf, codsty->transform == FF_DWT53); // transformation
335 static int put_qcd(Jpeg2000EncoderContext *s, int compno)
338 Jpeg2000CodingStyle *codsty = &s->codsty;
339 Jpeg2000QuantStyle *qntsty = &s->qntsty;
341 if (qntsty->quantsty == JPEG2000_QSTY_NONE)
342 size = 4 + 3 * (codsty->nreslevels-1);
344 size = 5 + 6 * (codsty->nreslevels-1);
346 if (s->buf_end - s->buf < size + 2)
349 bytestream_put_be16(&s->buf, JPEG2000_QCD);
350 bytestream_put_be16(&s->buf, size); // LQcd
351 bytestream_put_byte(&s->buf, (qntsty->nguardbits << 5) | qntsty->quantsty); // Sqcd
352 if (qntsty->quantsty == JPEG2000_QSTY_NONE)
353 for (i = 0; i < codsty->nreslevels * 3 - 2; i++)
354 bytestream_put_byte(&s->buf, qntsty->expn[i] << 3);
356 for (i = 0; i < codsty->nreslevels * 3 - 2; i++)
357 bytestream_put_be16(&s->buf, (qntsty->expn[i] << 11) | qntsty->mant[i]);
361 static int put_com(Jpeg2000EncoderContext *s, int compno)
363 int size = 4 + strlen(LIBAVCODEC_IDENT);
365 if (s->avctx->flags & AV_CODEC_FLAG_BITEXACT)
368 if (s->buf_end - s->buf < size + 2)
371 bytestream_put_be16(&s->buf, JPEG2000_COM);
372 bytestream_put_be16(&s->buf, size);
373 bytestream_put_be16(&s->buf, 1); // General use (ISO/IEC 8859-15 (Latin) values)
375 bytestream_put_buffer(&s->buf, LIBAVCODEC_IDENT, strlen(LIBAVCODEC_IDENT));
380 static uint8_t *put_sot(Jpeg2000EncoderContext *s, int tileno)
384 if (s->buf_end - s->buf < 12)
387 bytestream_put_be16(&s->buf, JPEG2000_SOT);
388 bytestream_put_be16(&s->buf, 10); // Lsot
389 bytestream_put_be16(&s->buf, tileno); // Isot
392 bytestream_put_be32(&s->buf, 0); // Psot (filled in later)
394 bytestream_put_byte(&s->buf, 0); // TPsot
395 bytestream_put_byte(&s->buf, 1); // TNsot
400 * compute the sizes of tiles, resolution levels, bands, etc.
401 * allocate memory for them
402 * divide the input image into tile-components
404 static int init_tiles(Jpeg2000EncoderContext *s)
406 int tileno, tilex, tiley, compno;
407 Jpeg2000CodingStyle *codsty = &s->codsty;
408 Jpeg2000QuantStyle *qntsty = &s->qntsty;
410 s->numXtiles = ff_jpeg2000_ceildiv(s->width, s->tile_width);
411 s->numYtiles = ff_jpeg2000_ceildiv(s->height, s->tile_height);
413 s->tile = av_malloc_array(s->numXtiles, s->numYtiles * sizeof(Jpeg2000Tile));
415 return AVERROR(ENOMEM);
416 for (tileno = 0, tiley = 0; tiley < s->numYtiles; tiley++)
417 for (tilex = 0; tilex < s->numXtiles; tilex++, tileno++){
418 Jpeg2000Tile *tile = s->tile + tileno;
420 tile->comp = av_mallocz_array(s->ncomponents, sizeof(Jpeg2000Component));
422 return AVERROR(ENOMEM);
423 for (compno = 0; compno < s->ncomponents; compno++){
424 Jpeg2000Component *comp = tile->comp + compno;
427 comp->coord[0][0] = comp->coord_o[0][0] = tilex * s->tile_width;
428 comp->coord[0][1] = comp->coord_o[0][1] = FFMIN((tilex+1)*s->tile_width, s->width);
429 comp->coord[1][0] = comp->coord_o[1][0] = tiley * s->tile_height;
430 comp->coord[1][1] = comp->coord_o[1][1] = FFMIN((tiley+1)*s->tile_height, s->height);
432 for (i = 0; i < 2; i++)
433 for (j = 0; j < 2; j++)
434 comp->coord[i][j] = comp->coord_o[i][j] = ff_jpeg2000_ceildivpow2(comp->coord[i][j], s->chroma_shift[i]);
436 if ((ret = ff_jpeg2000_init_component(comp,
440 compno?1<<s->chroma_shift[0]:1,
441 compno?1<<s->chroma_shift[1]:1,
450 static void copy_frame(Jpeg2000EncoderContext *s)
452 int tileno, compno, i, y, x;
454 for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
455 Jpeg2000Tile *tile = s->tile + tileno;
457 for (compno = 0; compno < s->ncomponents; compno++){
458 Jpeg2000Component *comp = tile->comp + compno;
459 int *dst = comp->i_data;
460 line = s->picture->data[compno]
461 + comp->coord[1][0] * s->picture->linesize[compno]
463 for (y = comp->coord[1][0]; y < comp->coord[1][1]; y++){
465 for (x = comp->coord[0][0]; x < comp->coord[0][1]; x++)
466 *dst++ = *ptr++ - (1 << 7);
467 line += s->picture->linesize[compno];
471 line = s->picture->data[0] + tile->comp[0].coord[1][0] * s->picture->linesize[0]
472 + tile->comp[0].coord[0][0] * s->ncomponents;
475 for (y = tile->comp[0].coord[1][0]; y < tile->comp[0].coord[1][1]; y++){
477 for (x = tile->comp[0].coord[0][0]; x < tile->comp[0].coord[0][1]; x++, i++){
478 for (compno = 0; compno < s->ncomponents; compno++){
479 tile->comp[compno].i_data[i] = *ptr++ - (1 << 7);
482 line += s->picture->linesize[0];
488 static void init_quantization(Jpeg2000EncoderContext *s)
490 int compno, reslevelno, bandno;
491 Jpeg2000QuantStyle *qntsty = &s->qntsty;
492 Jpeg2000CodingStyle *codsty = &s->codsty;
494 for (compno = 0; compno < s->ncomponents; compno++){
496 for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
497 int nbands, lev = codsty->nreslevels - reslevelno - 1;
498 nbands = reslevelno ? 3 : 1;
499 for (bandno = 0; bandno < nbands; bandno++, gbandno++){
502 if (codsty->transform == FF_DWT97_INT){
503 int bandpos = bandno + (reslevelno>0),
504 ss = 81920000 / dwt_norms[0][bandpos][lev],
506 mant = (11 - log < 0 ? ss >> log - 11 : ss << 11 - log) & 0x7ff;
507 expn = s->cbps[compno] - log + 13;
509 expn = ((bandno&2)>>1) + (reslevelno>0) + s->cbps[compno];
511 qntsty->expn[gbandno] = expn;
512 qntsty->mant[gbandno] = mant;
518 static void init_luts(void)
521 mask = ~((1<<NMSEDEC_FRACBITS)-1);
523 for (i = 0; i < (1 << NMSEDEC_BITS); i++){
524 lut_nmsedec_sig[i] = FFMAX((3 * i << (13 - NMSEDEC_FRACBITS)) - (9 << 11), 0);
525 lut_nmsedec_sig0[i] = FFMAX((i*i + (1<<NMSEDEC_FRACBITS-1) & mask) << 1, 0);
527 a = (i >> (NMSEDEC_BITS-2)&2) + 1;
528 lut_nmsedec_ref[i] = FFMAX((a - 2) * (i << (13 - NMSEDEC_FRACBITS)) +
529 (1 << 13) - (a * a << 11), 0);
530 lut_nmsedec_ref0[i] = FFMAX(((i * i - (i << NMSEDEC_BITS) + (1 << 2 * NMSEDEC_FRACBITS) + (1 << (NMSEDEC_FRACBITS - 1))) & mask)
535 /* tier-1 routines */
536 static int getnmsedec_sig(int x, int bpno)
538 if (bpno > NMSEDEC_FRACBITS)
539 return lut_nmsedec_sig[(x >> (bpno - NMSEDEC_FRACBITS)) & ((1 << NMSEDEC_BITS) - 1)];
540 return lut_nmsedec_sig0[x & ((1 << NMSEDEC_BITS) - 1)];
543 static int getnmsedec_ref(int x, int bpno)
545 if (bpno > NMSEDEC_FRACBITS)
546 return lut_nmsedec_ref[(x >> (bpno - NMSEDEC_FRACBITS)) & ((1 << NMSEDEC_BITS) - 1)];
547 return lut_nmsedec_ref0[x & ((1 << NMSEDEC_BITS) - 1)];
550 static void encode_sigpass(Jpeg2000T1Context *t1, int width, int height, int bandno, int *nmsedec, int bpno)
552 int y0, x, y, mask = 1 << (bpno + NMSEDEC_FRACBITS);
553 for (y0 = 0; y0 < height; y0 += 4)
554 for (x = 0; x < width; x++)
555 for (y = y0; y < height && y < y0+4; y++){
556 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 int ctxno = ff_jpeg2000_getsigctxno(t1->flags[(y+1) * t1->stride + x+1], bandno),
558 bit = t1->data[(y) * t1->stride + x] & mask ? 1 : 0;
559 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, bit);
562 int ctxno = ff_jpeg2000_getsgnctxno(t1->flags[(y+1) * t1->stride + x+1], &xorbit);
563 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, (t1->flags[(y+1) * t1->stride + x+1] >> 15) ^ xorbit);
564 *nmsedec += getnmsedec_sig(t1->data[(y) * t1->stride + x], bpno + NMSEDEC_FRACBITS);
565 ff_jpeg2000_set_significance(t1, x, y, t1->flags[(y+1) * t1->stride + x+1] >> 15);
567 t1->flags[(y+1) * t1->stride + x+1] |= JPEG2000_T1_VIS;
572 static void encode_refpass(Jpeg2000T1Context *t1, int width, int height, int *nmsedec, int bpno)
574 int y0, x, y, mask = 1 << (bpno + NMSEDEC_FRACBITS);
575 for (y0 = 0; y0 < height; y0 += 4)
576 for (x = 0; x < width; x++)
577 for (y = y0; y < height && y < y0+4; y++)
578 if ((t1->flags[(y+1) * t1->stride + x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS)) == JPEG2000_T1_SIG){
579 int ctxno = ff_jpeg2000_getrefctxno(t1->flags[(y+1) * t1->stride + x+1]);
580 *nmsedec += getnmsedec_ref(t1->data[(y) * t1->stride + x], bpno + NMSEDEC_FRACBITS);
581 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, t1->data[(y) * t1->stride + x] & mask ? 1:0);
582 t1->flags[(y+1) * t1->stride + x+1] |= JPEG2000_T1_REF;
586 static void encode_clnpass(Jpeg2000T1Context *t1, int width, int height, int bandno, int *nmsedec, int bpno)
588 int y0, x, y, mask = 1 << (bpno + NMSEDEC_FRACBITS);
589 for (y0 = 0; y0 < height; y0 += 4)
590 for (x = 0; x < width; x++){
591 if (y0 + 3 < height && !(
592 (t1->flags[(y0+1) * t1->stride + x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
593 (t1->flags[(y0+2) * t1->stride + x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
594 (t1->flags[(y0+3) * t1->stride + x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) ||
595 (t1->flags[(y0+4) * t1->stride + x+1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG))))
599 for (rlen = 0; rlen < 4; rlen++)
600 if (t1->data[(y0+rlen) * t1->stride + x] & mask)
602 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + MQC_CX_RL, rlen != 4);
605 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI, rlen >> 1);
606 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI, rlen & 1);
607 for (y = y0 + rlen; y < y0 + 4; y++){
608 if (!(t1->flags[(y+1) * t1->stride + x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS))){
609 int ctxno = ff_jpeg2000_getsigctxno(t1->flags[(y+1) * t1->stride + x+1], bandno);
611 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, t1->data[(y) * t1->stride + x] & mask ? 1:0);
612 if (t1->data[(y) * t1->stride + x] & mask){ // newly significant
614 int ctxno = ff_jpeg2000_getsgnctxno(t1->flags[(y+1) * t1->stride + x+1], &xorbit);
615 *nmsedec += getnmsedec_sig(t1->data[(y) * t1->stride + x], bpno + NMSEDEC_FRACBITS);
616 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, (t1->flags[(y+1) * t1->stride + x+1] >> 15) ^ xorbit);
617 ff_jpeg2000_set_significance(t1, x, y, t1->flags[(y+1) * t1->stride + x+1] >> 15);
620 t1->flags[(y+1) * t1->stride + x+1] &= ~JPEG2000_T1_VIS;
623 for (y = y0; y < y0 + 4 && y < height; y++){
624 if (!(t1->flags[(y+1) * t1->stride + x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS))){
625 int ctxno = ff_jpeg2000_getsigctxno(t1->flags[(y+1) * t1->stride + x+1], bandno);
626 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, t1->data[(y) * t1->stride + x] & mask ? 1:0);
627 if (t1->data[(y) * t1->stride + x] & mask){ // newly significant
629 int ctxno = ff_jpeg2000_getsgnctxno(t1->flags[(y+1) * t1->stride + x+1], &xorbit);
630 *nmsedec += getnmsedec_sig(t1->data[(y) * t1->stride + x], bpno + NMSEDEC_FRACBITS);
631 ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, (t1->flags[(y+1) * t1->stride + x+1] >> 15) ^ xorbit);
632 ff_jpeg2000_set_significance(t1, x, y, t1->flags[(y+1) * t1->stride + x+1] >> 15);
635 t1->flags[(y+1) * t1->stride + x+1] &= ~JPEG2000_T1_VIS;
641 static void encode_cblk(Jpeg2000EncoderContext *s, Jpeg2000T1Context *t1, Jpeg2000Cblk *cblk, Jpeg2000Tile *tile,
642 int width, int height, int bandpos, int lev)
644 int pass_t = 2, passno, x, y, max=0, nmsedec, bpno;
647 memset(t1->flags, 0, t1->stride * (height + 2) * sizeof(*t1->flags));
649 for (y = 0; y < height; y++){
650 for (x = 0; x < width; x++){
651 if (t1->data[(y) * t1->stride + x] < 0){
652 t1->flags[(y+1) * t1->stride + x+1] |= JPEG2000_T1_SGN;
653 t1->data[(y) * t1->stride + x] = -t1->data[(y) * t1->stride + x];
655 max = FFMAX(max, t1->data[(y) * t1->stride + x]);
660 cblk->nonzerobits = 0;
663 cblk->nonzerobits = av_log2(max) + 1 - NMSEDEC_FRACBITS;
664 bpno = cblk->nonzerobits - 1;
668 ff_mqc_initenc(&t1->mqc, cblk->data + 1);
670 for (passno = 0; bpno >= 0; passno++){
674 case 0: encode_sigpass(t1, width, height, bandpos, &nmsedec, bpno);
676 case 1: encode_refpass(t1, width, height, &nmsedec, bpno);
678 case 2: encode_clnpass(t1, width, height, bandpos, &nmsedec, bpno);
682 cblk->passes[passno].rate = ff_mqc_flush_to(&t1->mqc, cblk->passes[passno].flushed, &cblk->passes[passno].flushed_len);
683 wmsedec += (int64_t)nmsedec << (2*bpno);
684 cblk->passes[passno].disto = wmsedec;
691 cblk->npasses = passno;
692 cblk->ninclpasses = passno;
695 cblk->passes[passno-1].rate = ff_mqc_flush_to(&t1->mqc, cblk->passes[passno-1].flushed, &cblk->passes[passno-1].flushed_len);
698 /* tier-2 routines: */
700 static void putnumpasses(Jpeg2000EncoderContext *s, int n)
707 put_num(s, 0xc | (n-3), 4);
709 put_num(s, 0x1e0 | (n-6), 9);
711 put_num(s, 0xff80 | (n-37), 16);
715 static int encode_packet(Jpeg2000EncoderContext *s, Jpeg2000ResLevel *rlevel, int precno,
716 uint8_t *expn, int numgbits)
718 int bandno, empty = 1;
726 // is the packet empty?
727 for (bandno = 0; bandno < rlevel->nbands; bandno++){
728 if (rlevel->band[bandno].coord[0][0] < rlevel->band[bandno].coord[0][1]
729 && rlevel->band[bandno].coord[1][0] < rlevel->band[bandno].coord[1][1]){
735 put_bits(s, !empty, 1);
741 for (bandno = 0; bandno < rlevel->nbands; bandno++){
742 Jpeg2000Band *band = rlevel->band + bandno;
743 Jpeg2000Prec *prec = band->prec + precno;
745 int cblknw = prec->nb_codeblocks_width;
747 if (band->coord[0][0] == band->coord[0][1]
748 || band->coord[1][0] == band->coord[1][1])
751 for (pos=0, yi = 0; yi < prec->nb_codeblocks_height; yi++){
752 for (xi = 0; xi < cblknw; xi++, pos++){
753 prec->cblkincl[pos].val = prec->cblk[yi * cblknw + xi].ninclpasses == 0;
754 tag_tree_update(prec->cblkincl + pos);
755 prec->zerobits[pos].val = expn[bandno] + numgbits - 1 - prec->cblk[yi * cblknw + xi].nonzerobits;
756 tag_tree_update(prec->zerobits + pos);
760 for (pos=0, yi = 0; yi < prec->nb_codeblocks_height; yi++){
761 for (xi = 0; xi < cblknw; xi++, pos++){
762 int pad = 0, llen, length;
763 Jpeg2000Cblk *cblk = prec->cblk + yi * cblknw + xi;
765 if (s->buf_end - s->buf < 20) // approximately
768 // inclusion information
769 tag_tree_code(s, prec->cblkincl + pos, 1);
770 if (!cblk->ninclpasses)
772 // zerobits information
773 tag_tree_code(s, prec->zerobits + pos, 100);
775 putnumpasses(s, cblk->ninclpasses);
777 length = cblk->passes[cblk->ninclpasses-1].rate;
778 llen = av_log2(length) - av_log2(cblk->ninclpasses) - 2;
783 // length of code block
784 put_bits(s, 1, llen);
786 put_num(s, length, av_log2(length)+1+pad);
791 for (bandno = 0; bandno < rlevel->nbands; bandno++){
792 Jpeg2000Band *band = rlevel->band + bandno;
793 Jpeg2000Prec *prec = band->prec + precno;
794 int yi, cblknw = prec->nb_codeblocks_width;
795 for (yi =0; yi < prec->nb_codeblocks_height; yi++){
797 for (xi = 0; xi < cblknw; xi++){
798 Jpeg2000Cblk *cblk = prec->cblk + yi * cblknw + xi;
799 if (cblk->ninclpasses){
800 if (s->buf_end - s->buf < cblk->passes[cblk->ninclpasses-1].rate)
802 bytestream_put_buffer(&s->buf, cblk->data + 1, cblk->passes[cblk->ninclpasses-1].rate
803 - cblk->passes[cblk->ninclpasses-1].flushed_len);
804 bytestream_put_buffer(&s->buf, cblk->passes[cblk->ninclpasses-1].flushed,
805 cblk->passes[cblk->ninclpasses-1].flushed_len);
813 static int encode_packets(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile, int tileno)
815 int compno, reslevelno, ret;
816 Jpeg2000CodingStyle *codsty = &s->codsty;
817 Jpeg2000QuantStyle *qntsty = &s->qntsty;
819 av_log(s->avctx, AV_LOG_DEBUG, "tier2\n");
820 // lay-rlevel-comp-pos progression
821 for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
822 for (compno = 0; compno < s->ncomponents; compno++){
824 Jpeg2000ResLevel *reslevel = s->tile[tileno].comp[compno].reslevel + reslevelno;
825 for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
826 if ((ret = encode_packet(s, reslevel, precno, qntsty->expn + (reslevelno ? 3*reslevelno-2 : 0),
827 qntsty->nguardbits)) < 0)
832 av_log(s->avctx, AV_LOG_DEBUG, "after tier2\n");
836 static int getcut(Jpeg2000Cblk *cblk, int64_t lambda, int dwt_norm)
839 for (passno = 0; passno < cblk->npasses; passno++){
843 dr = cblk->passes[passno].rate
844 - (res ? cblk->passes[res-1].rate:0);
845 dd = cblk->passes[passno].disto
846 - (res ? cblk->passes[res-1].disto:0);
848 if (((dd * dwt_norm) >> WMSEDEC_SHIFT) * dwt_norm >= dr * lambda)
854 static void truncpasses(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile)
856 int precno, compno, reslevelno, bandno, cblkno, lev;
857 Jpeg2000CodingStyle *codsty = &s->codsty;
859 for (compno = 0; compno < s->ncomponents; compno++){
860 Jpeg2000Component *comp = tile->comp + compno;
862 for (reslevelno = 0, lev = codsty->nreslevels-1; reslevelno < codsty->nreslevels; reslevelno++, lev--){
863 Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
865 for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
866 for (bandno = 0; bandno < reslevel->nbands ; bandno++){
867 int bandpos = bandno + (reslevelno > 0);
868 Jpeg2000Band *band = reslevel->band + bandno;
869 Jpeg2000Prec *prec = band->prec + precno;
871 for (cblkno = 0; cblkno < prec->nb_codeblocks_height * prec->nb_codeblocks_width; cblkno++){
872 Jpeg2000Cblk *cblk = prec->cblk + cblkno;
874 cblk->ninclpasses = getcut(cblk, s->lambda,
875 (int64_t)dwt_norms[codsty->transform == FF_DWT53][bandpos][lev] * (int64_t)band->i_stepsize >> 15);
883 static int encode_tile(Jpeg2000EncoderContext *s, Jpeg2000Tile *tile, int tileno)
885 int compno, reslevelno, bandno, ret;
886 Jpeg2000T1Context t1;
887 Jpeg2000CodingStyle *codsty = &s->codsty;
888 for (compno = 0; compno < s->ncomponents; compno++){
889 Jpeg2000Component *comp = s->tile[tileno].comp + compno;
891 t1.stride = (1<<codsty->log2_cblk_width) + 2;
893 av_log(s->avctx, AV_LOG_DEBUG,"dwt\n");
894 if ((ret = ff_dwt_encode(&comp->dwt, comp->i_data)) < 0)
896 av_log(s->avctx, AV_LOG_DEBUG,"after dwt -> tier1\n");
898 for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
899 Jpeg2000ResLevel *reslevel = comp->reslevel + reslevelno;
901 for (bandno = 0; bandno < reslevel->nbands ; bandno++){
902 Jpeg2000Band *band = reslevel->band + bandno;
903 Jpeg2000Prec *prec = band->prec; // we support only 1 precinct per band ATM in the encoder
904 int cblkx, cblky, cblkno=0, xx0, x0, xx1, y0, yy0, yy1, bandpos;
905 yy0 = bandno == 0 ? 0 : comp->reslevel[reslevelno-1].coord[1][1] - comp->reslevel[reslevelno-1].coord[1][0];
907 yy1 = FFMIN(ff_jpeg2000_ceildivpow2(band->coord[1][0] + 1, band->log2_cblk_height) << band->log2_cblk_height,
908 band->coord[1][1]) - band->coord[1][0] + yy0;
910 if (band->coord[0][0] == band->coord[0][1] || band->coord[1][0] == band->coord[1][1])
913 bandpos = bandno + (reslevelno > 0);
915 for (cblky = 0; cblky < prec->nb_codeblocks_height; cblky++){
916 if (reslevelno == 0 || bandno == 1)
919 xx0 = comp->reslevel[reslevelno-1].coord[0][1] - comp->reslevel[reslevelno-1].coord[0][0];
921 xx1 = FFMIN(ff_jpeg2000_ceildivpow2(band->coord[0][0] + 1, band->log2_cblk_width) << band->log2_cblk_width,
922 band->coord[0][1]) - band->coord[0][0] + xx0;
924 for (cblkx = 0; cblkx < prec->nb_codeblocks_width; cblkx++, cblkno++){
926 if (codsty->transform == FF_DWT53){
927 for (y = yy0; y < yy1; y++){
928 int *ptr = t1.data + (y-yy0)*t1.stride;
929 for (x = xx0; x < xx1; x++){
930 *ptr++ = comp->i_data[(comp->coord[0][1] - comp->coord[0][0]) * y + x] * (1 << NMSEDEC_FRACBITS);
934 for (y = yy0; y < yy1; y++){
935 int *ptr = t1.data + (y-yy0)*t1.stride;
936 for (x = xx0; x < xx1; x++){
937 *ptr = (comp->i_data[(comp->coord[0][1] - comp->coord[0][0]) * y + x]);
938 *ptr = (int64_t)*ptr * (int64_t)(16384 * 65536 / band->i_stepsize) >> 15 - NMSEDEC_FRACBITS;
943 if (!prec->cblk[cblkno].data)
944 prec->cblk[cblkno].data = av_malloc(1 + 8192);
945 if (!prec->cblk[cblkno].passes)
946 prec->cblk[cblkno].passes = av_malloc_array(JPEG2000_MAX_PASSES, sizeof (*prec->cblk[cblkno].passes));
947 if (!prec->cblk[cblkno].data || !prec->cblk[cblkno].passes)
948 return AVERROR(ENOMEM);
949 encode_cblk(s, &t1, prec->cblk + cblkno, tile, xx1 - xx0, yy1 - yy0,
950 bandpos, codsty->nreslevels - reslevelno - 1);
952 xx1 = FFMIN(xx1 + (1 << band->log2_cblk_width), band->coord[0][1] - band->coord[0][0] + x0);
955 yy1 = FFMIN(yy1 + (1 << band->log2_cblk_height), band->coord[1][1] - band->coord[1][0] + y0);
959 av_log(s->avctx, AV_LOG_DEBUG, "after tier1\n");
962 av_log(s->avctx, AV_LOG_DEBUG, "rate control\n");
963 truncpasses(s, tile);
964 if ((ret = encode_packets(s, tile, tileno)) < 0)
966 av_log(s->avctx, AV_LOG_DEBUG, "after rate control\n");
970 static void cleanup(Jpeg2000EncoderContext *s)
973 Jpeg2000CodingStyle *codsty = &s->codsty;
975 for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
976 for (compno = 0; compno < s->ncomponents; compno++){
977 Jpeg2000Component *comp = s->tile[tileno].comp + compno;
978 ff_jpeg2000_cleanup(comp, codsty);
980 av_freep(&s->tile[tileno].comp);
985 static void reinit(Jpeg2000EncoderContext *s)
988 for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
989 Jpeg2000Tile *tile = s->tile + tileno;
990 for (compno = 0; compno < s->ncomponents; compno++)
991 ff_jpeg2000_reinit(tile->comp + compno, &s->codsty);
995 static void update_size(uint8_t *size, const uint8_t *end)
997 AV_WB32(size, end-size);
1000 static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
1001 const AVFrame *pict, int *got_packet)
1004 Jpeg2000EncoderContext *s = avctx->priv_data;
1005 uint8_t *chunkstart, *jp2cstart, *jp2hstart;
1007 if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width*avctx->height*9 + AV_INPUT_BUFFER_MIN_SIZE, 0)) < 0)
1011 s->buf = s->buf_start = pkt->data;
1012 s->buf_end = pkt->data + pkt->size;
1016 s->lambda = s->picture->quality * LAMBDA_SCALE;
1021 if (s->format == CODEC_JP2) {
1022 av_assert0(s->buf == pkt->data);
1024 bytestream_put_be32(&s->buf, 0x0000000C);
1025 bytestream_put_be32(&s->buf, 0x6A502020);
1026 bytestream_put_be32(&s->buf, 0x0D0A870A);
1028 chunkstart = s->buf;
1029 bytestream_put_be32(&s->buf, 0);
1030 bytestream_put_buffer(&s->buf, "ftyp", 4);
1031 bytestream_put_buffer(&s->buf, "jp2\040\040", 4);
1032 bytestream_put_be32(&s->buf, 0);
1033 bytestream_put_buffer(&s->buf, "jp2\040", 4);
1034 update_size(chunkstart, s->buf);
1037 bytestream_put_be32(&s->buf, 0);
1038 bytestream_put_buffer(&s->buf, "jp2h", 4);
1040 chunkstart = s->buf;
1041 bytestream_put_be32(&s->buf, 0);
1042 bytestream_put_buffer(&s->buf, "ihdr", 4);
1043 bytestream_put_be32(&s->buf, avctx->height);
1044 bytestream_put_be32(&s->buf, avctx->width);
1045 bytestream_put_be16(&s->buf, s->ncomponents);
1046 bytestream_put_byte(&s->buf, s->cbps[0]);
1047 bytestream_put_byte(&s->buf, 7);
1048 bytestream_put_byte(&s->buf, 0);
1049 bytestream_put_byte(&s->buf, 0);
1050 update_size(chunkstart, s->buf);
1052 chunkstart = s->buf;
1053 bytestream_put_be32(&s->buf, 0);
1054 bytestream_put_buffer(&s->buf, "colr", 4);
1055 bytestream_put_byte(&s->buf, 1);
1056 bytestream_put_byte(&s->buf, 0);
1057 bytestream_put_byte(&s->buf, 0);
1058 if (avctx->pix_fmt == AV_PIX_FMT_RGB24 || avctx->pix_fmt == AV_PIX_FMT_PAL8) {
1059 bytestream_put_be32(&s->buf, 16);
1060 } else if (s->ncomponents == 1) {
1061 bytestream_put_be32(&s->buf, 17);
1063 bytestream_put_be32(&s->buf, 18);
1065 update_size(chunkstart, s->buf);
1066 if (avctx->pix_fmt == AV_PIX_FMT_PAL8) {
1068 uint8_t *palette = pict->data[1];
1069 chunkstart = s->buf;
1070 bytestream_put_be32(&s->buf, 0);
1071 bytestream_put_buffer(&s->buf, "pclr", 4);
1072 bytestream_put_be16(&s->buf, AVPALETTE_COUNT);
1073 bytestream_put_byte(&s->buf, 3); // colour channels
1074 bytestream_put_be24(&s->buf, 0x070707); //colour depths
1075 for (i = 0; i < AVPALETTE_COUNT; i++) {
1076 bytestream_put_be24(&s->buf, HAVE_BIGENDIAN ? AV_RB24(palette + 1) : AV_RL24(palette));
1079 update_size(chunkstart, s->buf);
1080 chunkstart = s->buf;
1081 bytestream_put_be32(&s->buf, 0);
1082 bytestream_put_buffer(&s->buf, "cmap", 4);
1083 for (i = 0; i < 3; i++) {
1084 bytestream_put_be16(&s->buf, 0); // component
1085 bytestream_put_byte(&s->buf, 1); // palette mapping
1086 bytestream_put_byte(&s->buf, i); // index
1088 update_size(chunkstart, s->buf);
1090 update_size(jp2hstart, s->buf);
1093 bytestream_put_be32(&s->buf, 0);
1094 bytestream_put_buffer(&s->buf, "jp2c", 4);
1097 if (s->buf_end - s->buf < 2)
1099 bytestream_put_be16(&s->buf, JPEG2000_SOC);
1100 if ((ret = put_siz(s)) < 0)
1102 if ((ret = put_cod(s)) < 0)
1104 if ((ret = put_qcd(s, 0)) < 0)
1106 if ((ret = put_com(s, 0)) < 0)
1109 for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
1111 if (!(psotptr = put_sot(s, tileno)))
1113 if (s->buf_end - s->buf < 2)
1115 bytestream_put_be16(&s->buf, JPEG2000_SOD);
1116 if ((ret = encode_tile(s, s->tile + tileno, tileno)) < 0)
1118 bytestream_put_be32(&psotptr, s->buf - psotptr + 6);
1120 if (s->buf_end - s->buf < 2)
1122 bytestream_put_be16(&s->buf, JPEG2000_EOC);
1124 if (s->format == CODEC_JP2)
1125 update_size(jp2cstart, s->buf);
1127 av_log(s->avctx, AV_LOG_DEBUG, "end\n");
1128 pkt->size = s->buf - s->buf_start;
1129 pkt->flags |= AV_PKT_FLAG_KEY;
1135 static av_cold int j2kenc_init(AVCodecContext *avctx)
1138 Jpeg2000EncoderContext *s = avctx->priv_data;
1139 Jpeg2000CodingStyle *codsty = &s->codsty;
1140 Jpeg2000QuantStyle *qntsty = &s->qntsty;
1143 av_log(s->avctx, AV_LOG_DEBUG, "init\n");
1145 #if FF_API_PRIVATE_OPT
1146 FF_DISABLE_DEPRECATION_WARNINGS
1147 if (avctx->prediction_method)
1148 s->pred = avctx->prediction_method;
1149 FF_ENABLE_DEPRECATION_WARNINGS
1152 if (avctx->pix_fmt == AV_PIX_FMT_PAL8 && (s->pred != FF_DWT97_INT || s->format != CODEC_JP2)) {
1153 av_log(s->avctx, AV_LOG_WARNING, "Forcing lossless jp2 for pal8\n");
1154 s->pred = FF_DWT97_INT;
1155 s->format = CODEC_JP2;
1159 // TODO: implement setting non-standard precinct size
1160 memset(codsty->log2_prec_widths , 15, sizeof(codsty->log2_prec_widths ));
1161 memset(codsty->log2_prec_heights, 15, sizeof(codsty->log2_prec_heights));
1162 codsty->nreslevels2decode=
1163 codsty->nreslevels = 7;
1164 codsty->log2_cblk_width = 4;
1165 codsty->log2_cblk_height = 4;
1166 codsty->transform = s->pred ? FF_DWT53 : FF_DWT97_INT;
1168 qntsty->nguardbits = 1;
1170 if ((s->tile_width & (s->tile_width -1)) ||
1171 (s->tile_height & (s->tile_height-1))) {
1172 av_log(avctx, AV_LOG_WARNING, "Tile dimension not a power of 2\n");
1175 if (codsty->transform == FF_DWT53)
1176 qntsty->quantsty = JPEG2000_QSTY_NONE;
1178 qntsty->quantsty = JPEG2000_QSTY_SE;
1180 s->width = avctx->width;
1181 s->height = avctx->height;
1183 for (i = 0; i < 3; i++)
1186 if (avctx->pix_fmt == AV_PIX_FMT_RGB24){
1188 } else if (avctx->pix_fmt == AV_PIX_FMT_GRAY8 || avctx->pix_fmt == AV_PIX_FMT_PAL8){
1190 } else{ // planar YUV
1193 ret = av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt,
1194 s->chroma_shift, s->chroma_shift + 1);
1199 ff_jpeg2000_init_tier1_luts();
1200 ff_mqc_init_context_tables();
1203 init_quantization(s);
1204 if ((ret=init_tiles(s)) < 0)
1207 av_log(s->avctx, AV_LOG_DEBUG, "after init\n");
1212 static int j2kenc_destroy(AVCodecContext *avctx)
1214 Jpeg2000EncoderContext *s = avctx->priv_data;
1220 // taken from the libopenjpeg wraper so it matches
1222 #define OFFSET(x) offsetof(Jpeg2000EncoderContext, x)
1223 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
1224 static const AVOption options[] = {
1225 { "format", "Codec Format", OFFSET(format), AV_OPT_TYPE_INT, { .i64 = CODEC_JP2 }, CODEC_J2K, CODEC_JP2, VE, "format" },
1226 { "j2k", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CODEC_J2K }, 0, 0, VE, "format" },
1227 { "jp2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CODEC_JP2 }, 0, 0, VE, "format" },
1228 { "tile_width", "Tile Width", OFFSET(tile_width), AV_OPT_TYPE_INT, { .i64 = 256 }, 1, 1<<30, VE, },
1229 { "tile_height", "Tile Height", OFFSET(tile_height), AV_OPT_TYPE_INT, { .i64 = 256 }, 1, 1<<30, VE, },
1230 { "pred", "DWT Type", OFFSET(pred), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE, "pred" },
1231 { "dwt97int", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "pred" },
1232 { "dwt53", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "pred" },
1237 static const AVClass j2k_class = {
1238 .class_name = "jpeg 2000 encoder",
1239 .item_name = av_default_item_name,
1241 .version = LIBAVUTIL_VERSION_INT,
1244 AVCodec ff_jpeg2000_encoder = {
1246 .long_name = NULL_IF_CONFIG_SMALL("JPEG 2000"),
1247 .type = AVMEDIA_TYPE_VIDEO,
1248 .id = AV_CODEC_ID_JPEG2000,
1249 .priv_data_size = sizeof(Jpeg2000EncoderContext),
1250 .init = j2kenc_init,
1251 .encode2 = encode_frame,
1252 .close = j2kenc_destroy,
1253 .pix_fmts = (const enum AVPixelFormat[]) {
1254 AV_PIX_FMT_RGB24, AV_PIX_FMT_YUV444P, AV_PIX_FMT_GRAY8,
1255 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
1256 AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
1260 .priv_class = &j2k_class,