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1 | /* | ||
2 | * JPEG 2000 image decoder | ||
3 | * Copyright (c) 2007 Kamil Nowosad | ||
4 | * Copyright (c) 2013 Nicolas Bertrand <nicoinattendu@gmail.com> | ||
5 | * | ||
6 | * This file is part of FFmpeg. | ||
7 | * | ||
8 | * FFmpeg is free software; you can redistribute it and/or | ||
9 | * modify it under the terms of the GNU Lesser General Public | ||
10 | * License as published by the Free Software Foundation; either | ||
11 | * version 2.1 of the License, or (at your option) any later version. | ||
12 | * | ||
13 | * FFmpeg is distributed in the hope that it will be useful, | ||
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
16 | * Lesser General Public License for more details. | ||
17 | * | ||
18 | * You should have received a copy of the GNU Lesser General Public | ||
19 | * License along with FFmpeg; if not, write to the Free Software | ||
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
21 | */ | ||
22 | |||
23 | /** | ||
24 | * @file | ||
25 | * JPEG 2000 image decoder | ||
26 | */ | ||
27 | |||
28 | #include <inttypes.h> | ||
29 | #include <math.h> | ||
30 | |||
31 | #include "libavutil/attributes.h" | ||
32 | #include "libavutil/avassert.h" | ||
33 | #include "libavutil/common.h" | ||
34 | #include "libavutil/imgutils.h" | ||
35 | #include "libavutil/opt.h" | ||
36 | #include "libavutil/pixdesc.h" | ||
37 | #include "avcodec.h" | ||
38 | #include "bytestream.h" | ||
39 | #include "codec_internal.h" | ||
40 | #include "decode.h" | ||
41 | #include "thread.h" | ||
42 | #include "jpeg2000.h" | ||
43 | #include "jpeg2000dsp.h" | ||
44 | #include "profiles.h" | ||
45 | #include "jpeg2000dec.h" | ||
46 | #include "jpeg2000htdec.h" | ||
47 | |||
48 | #define JP2_SIG_TYPE 0x6A502020 | ||
49 | #define JP2_SIG_VALUE 0x0D0A870A | ||
50 | #define JP2_CODESTREAM 0x6A703263 | ||
51 | #define JP2_HEADER 0x6A703268 | ||
52 | |||
53 | #define HAD_COC 0x01 | ||
54 | #define HAD_QCC 0x02 | ||
55 | |||
56 | /* get_bits functions for JPEG2000 packet bitstream | ||
57 | * It is a get_bit function with a bit-stuffing routine. If the value of the | ||
58 | * byte is 0xFF, the next byte includes an extra zero bit stuffed into the MSB. | ||
59 | * cf. ISO-15444-1:2002 / B.10.1 Bit-stuffing routine */ | ||
60 | 8802537 | static int get_bits(Jpeg2000DecoderContext *s, int n) | |
61 | { | ||
62 | 8802537 | int res = 0; | |
63 | |||
64 |
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26200014 | while (--n >= 0) { |
65 | 17397477 | res <<= 1; | |
66 |
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17397477 | if (s->bit_index == 0) { |
67 |
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2134532 | s->bit_index = 7 + (bytestream2_get_byte(&s->g) != 0xFFu); |
68 | } | ||
69 | 17397477 | s->bit_index--; | |
70 | 17397477 | res |= (bytestream2_peek_byte(&s->g) >> s->bit_index) & 1; | |
71 | } | ||
72 | 8802537 | return res; | |
73 | } | ||
74 | |||
75 | 87096 | static void jpeg2000_flush(Jpeg2000DecoderContext *s) | |
76 | { | ||
77 |
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87096 | if (bytestream2_get_byte(&s->g) == 0xff) |
78 | 2 | bytestream2_skip(&s->g, 1); | |
79 | 87096 | s->bit_index = 8; | |
80 | 87096 | } | |
81 | |||
82 | /* decode the value stored in node */ | ||
83 | 1726930 | static int tag_tree_decode(Jpeg2000DecoderContext *s, Jpeg2000TgtNode *node, | |
84 | int threshold) | ||
85 | { | ||
86 | Jpeg2000TgtNode *stack[30]; | ||
87 | 1726930 | int sp = -1, curval = 0; | |
88 | |||
89 |
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1726930 | if (!node) { |
90 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "missing node\n"); | |
91 | ✗ | return AVERROR_INVALIDDATA; | |
92 | } | ||
93 | |||
94 |
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4311228 | while (node && !node->vis) { |
95 | 2584298 | stack[++sp] = node; | |
96 | 2584298 | node = node->parent; | |
97 | } | ||
98 | |||
99 |
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1726930 | if (node) |
100 | 1379755 | curval = node->val; | |
101 | else | ||
102 | 347175 | curval = stack[sp]->val; | |
103 | |||
104 |
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4035586 | while (curval < threshold && sp >= 0) { |
105 |
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2308656 | if (curval < stack[sp]->val) |
106 | 23655 | curval = stack[sp]->val; | |
107 |
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3204432 | while (curval < threshold) { |
108 | int ret; | ||
109 |
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3145186 | if ((ret = get_bits(s, 1)) > 0) { |
110 | 2249410 | stack[sp]->vis++; | |
111 | 2249410 | break; | |
112 |
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895776 | } else if (!ret) |
113 | 895776 | curval++; | |
114 | else | ||
115 | ✗ | return ret; | |
116 | } | ||
117 | 2308656 | stack[sp]->val = curval; | |
118 | 2308656 | sp--; | |
119 | } | ||
120 | 1726930 | return curval; | |
121 | } | ||
122 | |||
123 | 1222 | static int pix_fmt_match(enum AVPixelFormat pix_fmt, int components, | |
124 | int bpc, uint32_t log2_chroma_wh, int pal8) | ||
125 | { | ||
126 | 1222 | int match = 1; | |
127 | 1222 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); | |
128 | |||
129 | av_assert2(desc); | ||
130 | |||
131 |
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1222 | if (desc->nb_components != components) { |
132 | 281 | return 0; | |
133 | } | ||
134 | |||
135 |
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941 | switch (components) { |
136 | 279 | case 4: | |
137 |
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558 | match = match && desc->comp[3].depth >= bpc && |
138 |
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771 | (log2_chroma_wh >> 14 & 3) == 0 && |
139 |
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213 | (log2_chroma_wh >> 12 & 3) == 0; |
140 | 910 | case 3: | |
141 |
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1754 | match = match && desc->comp[2].depth >= bpc && |
142 |
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2583 | (log2_chroma_wh >> 10 & 3) == desc->log2_chroma_w && |
143 |
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829 | (log2_chroma_wh >> 8 & 3) == desc->log2_chroma_h; |
144 | 910 | case 2: | |
145 |
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1739 | match = match && desc->comp[1].depth >= bpc && |
146 |
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2568 | (log2_chroma_wh >> 6 & 3) == desc->log2_chroma_w && |
147 |
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829 | (log2_chroma_wh >> 4 & 3) == desc->log2_chroma_h; |
148 | |||
149 | 941 | case 1: | |
150 |
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1801 | match = match && desc->comp[0].depth >= bpc && |
151 |
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860 | (log2_chroma_wh >> 2 & 3) == 0 && |
152 |
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2654 | (log2_chroma_wh & 3) == 0 && |
153 |
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853 | (desc->flags & AV_PIX_FMT_FLAG_PAL) == pal8 * AV_PIX_FMT_FLAG_PAL; |
154 | } | ||
155 | 941 | return match; | |
156 | } | ||
157 | |||
158 | // pix_fmts with lower bpp have to be listed before | ||
159 | // similar pix_fmts with higher bpp. | ||
160 | #define RGB_PIXEL_FORMATS AV_PIX_FMT_PAL8,AV_PIX_FMT_RGB24,AV_PIX_FMT_RGBA,AV_PIX_FMT_RGB48,AV_PIX_FMT_RGBA64 | ||
161 | #define GRAY_PIXEL_FORMATS AV_PIX_FMT_GRAY8,AV_PIX_FMT_GRAY8A,AV_PIX_FMT_GRAY16,AV_PIX_FMT_YA16 | ||
162 | #define YUV_PIXEL_FORMATS AV_PIX_FMT_YUV410P,AV_PIX_FMT_YUV411P,AV_PIX_FMT_YUVA420P, \ | ||
163 | AV_PIX_FMT_YUV420P,AV_PIX_FMT_YUV422P,AV_PIX_FMT_YUVA422P, \ | ||
164 | AV_PIX_FMT_YUV440P,AV_PIX_FMT_YUV444P,AV_PIX_FMT_YUVA444P, \ | ||
165 | AV_PIX_FMT_YUV420P9,AV_PIX_FMT_YUV422P9,AV_PIX_FMT_YUV444P9, \ | ||
166 | AV_PIX_FMT_YUVA420P9,AV_PIX_FMT_YUVA422P9,AV_PIX_FMT_YUVA444P9, \ | ||
167 | AV_PIX_FMT_YUV420P10,AV_PIX_FMT_YUV422P10,AV_PIX_FMT_YUV444P10, \ | ||
168 | AV_PIX_FMT_YUVA420P10,AV_PIX_FMT_YUVA422P10,AV_PIX_FMT_YUVA444P10, \ | ||
169 | AV_PIX_FMT_YUV420P12,AV_PIX_FMT_YUV422P12,AV_PIX_FMT_YUV444P12, \ | ||
170 | AV_PIX_FMT_YUV420P14,AV_PIX_FMT_YUV422P14,AV_PIX_FMT_YUV444P14, \ | ||
171 | AV_PIX_FMT_YUV420P16,AV_PIX_FMT_YUV422P16,AV_PIX_FMT_YUV444P16, \ | ||
172 | AV_PIX_FMT_YUVA420P16,AV_PIX_FMT_YUVA422P16,AV_PIX_FMT_YUVA444P16 | ||
173 | #define XYZ_PIXEL_FORMATS AV_PIX_FMT_XYZ12 | ||
174 | |||
175 | static const enum AVPixelFormat rgb_pix_fmts[] = {RGB_PIXEL_FORMATS}; | ||
176 | static const enum AVPixelFormat gray_pix_fmts[] = {GRAY_PIXEL_FORMATS}; | ||
177 | static const enum AVPixelFormat yuv_pix_fmts[] = {YUV_PIXEL_FORMATS}; | ||
178 | static const enum AVPixelFormat xyz_pix_fmts[] = {XYZ_PIXEL_FORMATS, | ||
179 | YUV_PIXEL_FORMATS}; | ||
180 | static const enum AVPixelFormat all_pix_fmts[] = {RGB_PIXEL_FORMATS, | ||
181 | GRAY_PIXEL_FORMATS, | ||
182 | YUV_PIXEL_FORMATS, | ||
183 | XYZ_PIXEL_FORMATS}; | ||
184 | |||
185 | /* marker segments */ | ||
186 | /* get sizes and offsets of image, tiles; number of components */ | ||
187 | 849 | static int get_siz(Jpeg2000DecoderContext *s) | |
188 | { | ||
189 | int i; | ||
190 | int ncomponents; | ||
191 | 849 | uint32_t log2_chroma_wh = 0; | |
192 | 849 | const enum AVPixelFormat *possible_fmts = NULL; | |
193 | 849 | int possible_fmts_nb = 0; | |
194 | int ret; | ||
195 | int o_dimx, o_dimy; //original image dimensions. | ||
196 | int dimx, dimy; | ||
197 | |||
198 |
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849 | if (bytestream2_get_bytes_left(&s->g) < 36) { |
199 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Insufficient space for SIZ\n"); | |
200 | ✗ | return AVERROR_INVALIDDATA; | |
201 | } | ||
202 | |||
203 | 849 | s->avctx->profile = bytestream2_get_be16u(&s->g); // Rsiz | |
204 | 849 | s->width = bytestream2_get_be32u(&s->g); // Width | |
205 | 849 | s->height = bytestream2_get_be32u(&s->g); // Height | |
206 | 849 | s->image_offset_x = bytestream2_get_be32u(&s->g); // X0Siz | |
207 | 849 | s->image_offset_y = bytestream2_get_be32u(&s->g); // Y0Siz | |
208 | 849 | s->tile_width = bytestream2_get_be32u(&s->g); // XTSiz | |
209 | 849 | s->tile_height = bytestream2_get_be32u(&s->g); // YTSiz | |
210 | 849 | s->tile_offset_x = bytestream2_get_be32u(&s->g); // XT0Siz | |
211 | 849 | s->tile_offset_y = bytestream2_get_be32u(&s->g); // YT0Siz | |
212 | 849 | ncomponents = bytestream2_get_be16u(&s->g); // CSiz | |
213 | |||
214 |
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849 | if (av_image_check_size2(s->width, s->height, s->avctx->max_pixels, AV_PIX_FMT_NONE, 0, s->avctx)) { |
215 | ✗ | avpriv_request_sample(s->avctx, "Large Dimensions"); | |
216 | ✗ | return AVERROR_PATCHWELCOME; | |
217 | } | ||
218 | |||
219 |
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849 | if (ncomponents <= 0) { |
220 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Invalid number of components: %d\n", | |
221 | s->ncomponents); | ||
222 | ✗ | return AVERROR_INVALIDDATA; | |
223 | } | ||
224 | |||
225 |
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849 | if (ncomponents > 4) { |
226 | ✗ | avpriv_request_sample(s->avctx, "Support for %d components", | |
227 | ncomponents); | ||
228 | ✗ | return AVERROR_PATCHWELCOME; | |
229 | } | ||
230 | |||
231 |
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849 | if (s->tile_offset_x < 0 || s->tile_offset_y < 0 || |
232 |
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849 | s->image_offset_x < s->tile_offset_x || |
233 |
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849 | s->image_offset_y < s->tile_offset_y || |
234 |
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849 | s->tile_width + (int64_t)s->tile_offset_x <= s->image_offset_x || |
235 |
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849 | s->tile_height + (int64_t)s->tile_offset_y <= s->image_offset_y |
236 | ) { | ||
237 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Tile offsets are invalid\n"); | |
238 | ✗ | return AVERROR_INVALIDDATA; | |
239 | } | ||
240 | |||
241 |
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849 | if (s->image_offset_x >= s->width || s->image_offset_y >= s->height) { |
242 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "image offsets outside image"); | |
243 | ✗ | return AVERROR_INVALIDDATA; | |
244 | } | ||
245 | |||
246 |
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849 | if (s->reduction_factor && (s->image_offset_x || s->image_offset_y) ){ |
247 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "reduction factor with image offsets is not fully implemented"); | |
248 | ✗ | return AVERROR_PATCHWELCOME; | |
249 | } | ||
250 | |||
251 | 849 | s->ncomponents = ncomponents; | |
252 | |||
253 |
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849 | if (s->tile_width <= 0 || s->tile_height <= 0) { |
254 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Invalid tile dimension %dx%d.\n", | |
255 | s->tile_width, s->tile_height); | ||
256 | ✗ | return AVERROR_INVALIDDATA; | |
257 | } | ||
258 | |||
259 |
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849 | if (bytestream2_get_bytes_left(&s->g) < 3 * s->ncomponents) { |
260 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Insufficient space for %d components in SIZ\n", s->ncomponents); | |
261 | ✗ | return AVERROR_INVALIDDATA; | |
262 | } | ||
263 | |||
264 |
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3567 | for (i = 0; i < s->ncomponents; i++) { // Ssiz_i XRsiz_i, YRsiz_i |
265 | 2718 | uint8_t x = bytestream2_get_byteu(&s->g); | |
266 | 2718 | s->cbps[i] = (x & 0x7f) + 1; | |
267 | 2718 | s->precision = FFMAX(s->cbps[i], s->precision); | |
268 | 2718 | s->sgnd[i] = !!(x & 0x80); | |
269 | 2718 | s->cdx[i] = bytestream2_get_byteu(&s->g); | |
270 | 2718 | s->cdy[i] = bytestream2_get_byteu(&s->g); | |
271 |
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2718 | if ( !s->cdx[i] || s->cdx[i] == 3 || s->cdx[i] > 4 |
272 |
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2718 | || !s->cdy[i] || s->cdy[i] == 3 || s->cdy[i] > 4) { |
273 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Invalid sample separation %d/%d\n", s->cdx[i], s->cdy[i]); | |
274 | ✗ | return AVERROR_INVALIDDATA; | |
275 | } | ||
276 | 2718 | log2_chroma_wh |= s->cdy[i] >> 1 << i * 4 | s->cdx[i] >> 1 << i * 4 + 2; | |
277 | } | ||
278 | |||
279 | 849 | s->numXtiles = ff_jpeg2000_ceildiv(s->width - s->tile_offset_x, s->tile_width); | |
280 | 849 | s->numYtiles = ff_jpeg2000_ceildiv(s->height - s->tile_offset_y, s->tile_height); | |
281 | |||
282 | // There must be at least a SOT and SOD per tile, their minimum size is 14 | ||
283 |
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849 | if (s->numXtiles * (uint64_t)s->numYtiles > INT_MAX/sizeof(*s->tile) || |
284 |
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849 | s->numXtiles * s->numYtiles * 14LL > bytestream2_size(&s->g) |
285 | ) { | ||
286 | ✗ | s->numXtiles = s->numYtiles = 0; | |
287 | ✗ | return AVERROR(EINVAL); | |
288 | } | ||
289 | |||
290 | 849 | s->tile = av_calloc(s->numXtiles * s->numYtiles, sizeof(*s->tile)); | |
291 |
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849 | if (!s->tile) { |
292 | ✗ | s->numXtiles = s->numYtiles = 0; | |
293 | ✗ | return AVERROR(ENOMEM); | |
294 | } | ||
295 | |||
296 |
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4057 | for (i = 0; i < s->numXtiles * s->numYtiles; i++) { |
297 | 3208 | Jpeg2000Tile *tile = s->tile + i; | |
298 | |||
299 | 3208 | tile->comp = av_mallocz(s->ncomponents * sizeof(*tile->comp)); | |
300 |
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3208 | if (!tile->comp) |
301 | ✗ | return AVERROR(ENOMEM); | |
302 | } | ||
303 | |||
304 | /* compute image size with reduction factor */ | ||
305 | 849 | o_dimx = ff_jpeg2000_ceildivpow2(s->width - s->image_offset_x, | |
306 | s->reduction_factor); | ||
307 | 849 | o_dimy = ff_jpeg2000_ceildivpow2(s->height - s->image_offset_y, | |
308 | s->reduction_factor); | ||
309 | 849 | dimx = ff_jpeg2000_ceildiv(o_dimx, s->cdx[0]); | |
310 | 849 | dimy = ff_jpeg2000_ceildiv(o_dimy, s->cdy[0]); | |
311 |
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2718 | for (i = 1; i < s->ncomponents; i++) { |
312 |
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1869 | dimx = FFMAX(dimx, ff_jpeg2000_ceildiv(o_dimx, s->cdx[i])); |
313 |
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1869 | dimy = FFMAX(dimy, ff_jpeg2000_ceildiv(o_dimy, s->cdy[i])); |
314 | } | ||
315 | |||
316 | 849 | ret = ff_set_dimensions(s->avctx, dimx << s->avctx->lowres, dimy << s->avctx->lowres); | |
317 |
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849 | if (ret < 0) |
318 | ✗ | return ret; | |
319 | |||
320 |
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849 | if (s->avctx->profile == AV_PROFILE_JPEG2000_DCINEMA_2K || |
321 |
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846 | s->avctx->profile == AV_PROFILE_JPEG2000_DCINEMA_4K) { |
322 | 3 | possible_fmts = xyz_pix_fmts; | |
323 | 3 | possible_fmts_nb = FF_ARRAY_ELEMS(xyz_pix_fmts); | |
324 | } else { | ||
325 |
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846 | switch (s->colour_space) { |
326 | 613 | case 16: | |
327 | 613 | possible_fmts = rgb_pix_fmts; | |
328 | 613 | possible_fmts_nb = FF_ARRAY_ELEMS(rgb_pix_fmts); | |
329 | 613 | break; | |
330 | ✗ | case 17: | |
331 | ✗ | possible_fmts = gray_pix_fmts; | |
332 | ✗ | possible_fmts_nb = FF_ARRAY_ELEMS(gray_pix_fmts); | |
333 | ✗ | break; | |
334 | 204 | case 18: | |
335 | 204 | possible_fmts = yuv_pix_fmts; | |
336 | 204 | possible_fmts_nb = FF_ARRAY_ELEMS(yuv_pix_fmts); | |
337 | 204 | break; | |
338 | 29 | default: | |
339 | 29 | possible_fmts = all_pix_fmts; | |
340 | 29 | possible_fmts_nb = FF_ARRAY_ELEMS(all_pix_fmts); | |
341 | 29 | break; | |
342 | } | ||
343 | } | ||
344 |
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849 | if ( s->avctx->pix_fmt != AV_PIX_FMT_NONE |
345 |
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816 | && !pix_fmt_match(s->avctx->pix_fmt, ncomponents, s->precision, log2_chroma_wh, s->pal8)) |
346 | 2 | s->avctx->pix_fmt = AV_PIX_FMT_NONE; | |
347 |
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849 | if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) |
348 |
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410 | for (i = 0; i < possible_fmts_nb; ++i) { |
349 |
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406 | if (pix_fmt_match(possible_fmts[i], ncomponents, s->precision, log2_chroma_wh, s->pal8)) { |
350 | 31 | s->avctx->pix_fmt = possible_fmts[i]; | |
351 | 31 | break; | |
352 | } | ||
353 | } | ||
354 | |||
355 |
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849 | if (i == possible_fmts_nb) { |
356 |
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4 | if (ncomponents == 4 && |
357 |
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2 | s->cdy[0] == 1 && s->cdx[0] == 1 && |
358 |
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2 | s->cdy[1] == 1 && s->cdx[1] == 1 && |
359 |
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2 | s->cdy[2] == s->cdy[3] && s->cdx[2] == s->cdx[3]) { |
360 |
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2 | if (s->precision == 8 && s->cdy[2] == 2 && s->cdx[2] == 2 && !s->pal8) { |
361 | 2 | s->avctx->pix_fmt = AV_PIX_FMT_YUVA420P; | |
362 | 2 | s->cdef[0] = 0; | |
363 | 2 | s->cdef[1] = 1; | |
364 | 2 | s->cdef[2] = 2; | |
365 | 2 | s->cdef[3] = 3; | |
366 | 2 | i = 0; | |
367 | } | ||
368 |
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2 | } else if (ncomponents == 3 && s->precision == 8 && |
369 | ✗ | s->cdx[0] == s->cdx[1] && s->cdx[0] == s->cdx[2] && | |
370 | ✗ | s->cdy[0] == s->cdy[1] && s->cdy[0] == s->cdy[2]) { | |
371 | ✗ | s->avctx->pix_fmt = AV_PIX_FMT_RGB24; | |
372 | ✗ | i = 0; | |
373 |
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2 | } else if (ncomponents == 2 && s->precision == 8 && |
374 | ✗ | s->cdx[0] == s->cdx[1] && s->cdy[0] == s->cdy[1]) { | |
375 | ✗ | s->avctx->pix_fmt = AV_PIX_FMT_YA8; | |
376 | ✗ | i = 0; | |
377 |
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2 | } else if (ncomponents == 2 && s->precision == 16 && |
378 | ✗ | s->cdx[0] == s->cdx[1] && s->cdy[0] == s->cdy[1]) { | |
379 | ✗ | s->avctx->pix_fmt = AV_PIX_FMT_YA16; | |
380 | ✗ | i = 0; | |
381 |
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2 | } else if (ncomponents == 1 && s->precision == 8) { |
382 | 2 | s->avctx->pix_fmt = AV_PIX_FMT_GRAY8; | |
383 | 2 | i = 0; | |
384 | } | ||
385 | } | ||
386 | |||
387 | |||
388 |
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849 | if (i == possible_fmts_nb) { |
389 | ✗ | av_log(s->avctx, AV_LOG_ERROR, | |
390 | "Unknown pix_fmt, profile: %d, colour_space: %d, " | ||
391 | "components: %d, precision: %d\n" | ||
392 | "cdx[0]: %d, cdy[0]: %d\n" | ||
393 | "cdx[1]: %d, cdy[1]: %d\n" | ||
394 | "cdx[2]: %d, cdy[2]: %d\n" | ||
395 | "cdx[3]: %d, cdy[3]: %d\n", | ||
396 | ✗ | s->avctx->profile, s->colour_space, ncomponents, s->precision, | |
397 | s->cdx[0], | ||
398 | s->cdy[0], | ||
399 | ncomponents > 1 ? s->cdx[1] : 0, | ||
400 | ncomponents > 1 ? s->cdy[1] : 0, | ||
401 | ncomponents > 2 ? s->cdx[2] : 0, | ||
402 | ncomponents > 2 ? s->cdy[2] : 0, | ||
403 | ncomponents > 3 ? s->cdx[3] : 0, | ||
404 | ncomponents > 3 ? s->cdy[3] : 0); | ||
405 | ✗ | return AVERROR_PATCHWELCOME; | |
406 | } | ||
407 | 849 | s->avctx->bits_per_raw_sample = s->precision; | |
408 | 849 | return 0; | |
409 | } | ||
410 | |||
411 | /* get common part for COD and COC segments */ | ||
412 | 867 | static int get_cox(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c) | |
413 | { | ||
414 | uint8_t byte; | ||
415 | |||
416 |
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867 | if (bytestream2_get_bytes_left(&s->g) < 5) { |
417 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Insufficient space for COX\n"); | |
418 | ✗ | return AVERROR_INVALIDDATA; | |
419 | } | ||
420 | |||
421 | /* nreslevels = number of resolution levels | ||
422 | = number of decomposition level +1 */ | ||
423 | 867 | c->nreslevels = bytestream2_get_byteu(&s->g) + 1; | |
424 |
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867 | if (c->nreslevels >= JPEG2000_MAX_RESLEVELS) { |
425 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "nreslevels %d is invalid\n", c->nreslevels); | |
426 | ✗ | return AVERROR_INVALIDDATA; | |
427 | } | ||
428 | |||
429 |
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867 | if (c->nreslevels <= s->reduction_factor) { |
430 | /* we are forced to update reduction_factor as its requested value is | ||
431 | not compatible with this bitstream, and as we might have used it | ||
432 | already in setup earlier we have to fail this frame until | ||
433 | reinitialization is implemented */ | ||
434 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "reduction_factor too large for this bitstream, max is %d\n", c->nreslevels - 1); | |
435 | ✗ | s->reduction_factor = c->nreslevels - 1; | |
436 | ✗ | return AVERROR(EINVAL); | |
437 | } | ||
438 | |||
439 | /* compute number of resolution levels to decode */ | ||
440 | 867 | c->nreslevels2decode = c->nreslevels - s->reduction_factor; | |
441 | |||
442 | 867 | c->log2_cblk_width = (bytestream2_get_byteu(&s->g) & 15) + 2; // cblk width | |
443 | 867 | c->log2_cblk_height = (bytestream2_get_byteu(&s->g) & 15) + 2; // cblk height | |
444 | |||
445 |
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867 | if (c->log2_cblk_width > 10 || c->log2_cblk_height > 10 || |
446 |
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867 | c->log2_cblk_width + c->log2_cblk_height > 12) { |
447 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "cblk size invalid\n"); | |
448 | ✗ | return AVERROR_INVALIDDATA; | |
449 | } | ||
450 | |||
451 | 867 | c->cblk_style = bytestream2_get_byteu(&s->g); | |
452 |
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867 | if (c->cblk_style != 0) { // cblk style |
453 |
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12 | if (c->cblk_style & JPEG2000_CTSY_HTJ2K_M || c->cblk_style & JPEG2000_CTSY_HTJ2K_F) { |
454 | 2 | av_log(s->avctx,AV_LOG_TRACE,"High Throughput jpeg 2000 codestream.\n"); | |
455 | } else { | ||
456 | 10 | av_log(s->avctx, AV_LOG_WARNING, "extra cblk styles %X\n", c->cblk_style); | |
457 |
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10 | if (c->cblk_style & JPEG2000_CBLK_BYPASS) |
458 | ✗ | av_log(s->avctx, AV_LOG_WARNING, "Selective arithmetic coding bypass\n"); | |
459 | } | ||
460 | } | ||
461 | 867 | c->transform = bytestream2_get_byteu(&s->g); // DWT transformation type | |
462 | /* set integer 9/7 DWT in case of BITEXACT flag */ | ||
463 |
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867 | if ((s->avctx->flags & AV_CODEC_FLAG_BITEXACT) && (c->transform == FF_DWT97)) |
464 | 223 | c->transform = FF_DWT97_INT; | |
465 |
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644 | else if (c->transform == FF_DWT53) { |
466 | 643 | s->avctx->properties |= FF_CODEC_PROPERTY_LOSSLESS; | |
467 | } | ||
468 | |||
469 |
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867 | if (c->csty & JPEG2000_CSTY_PREC) { |
470 | int i; | ||
471 |
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100 | for (i = 0; i < c->nreslevels; i++) { |
472 | 84 | byte = bytestream2_get_byte(&s->g); | |
473 | 84 | c->log2_prec_widths[i] = byte & 0x0F; // precinct PPx | |
474 | 84 | c->log2_prec_heights[i] = (byte >> 4) & 0x0F; // precinct PPy | |
475 |
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84 | if (i) |
476 |
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68 | if (c->log2_prec_widths[i] == 0 || c->log2_prec_heights[i] == 0) { |
477 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "PPx %d PPy %d invalid\n", | |
478 | ✗ | c->log2_prec_widths[i], c->log2_prec_heights[i]); | |
479 | ✗ | c->log2_prec_widths[i] = c->log2_prec_heights[i] = 1; | |
480 | ✗ | return AVERROR_INVALIDDATA; | |
481 | } | ||
482 | } | ||
483 | } else { | ||
484 | 851 | memset(c->log2_prec_widths , 15, sizeof(c->log2_prec_widths )); | |
485 | 851 | memset(c->log2_prec_heights, 15, sizeof(c->log2_prec_heights)); | |
486 | } | ||
487 | 867 | return 0; | |
488 | } | ||
489 | |||
490 | /* get coding parameters for a particular tile or whole image*/ | ||
491 | 849 | static int get_cod(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c, | |
492 | const uint8_t *properties) | ||
493 | { | ||
494 | Jpeg2000CodingStyle tmp; | ||
495 | int compno, ret; | ||
496 | |||
497 |
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849 | if (bytestream2_get_bytes_left(&s->g) < 5) { |
498 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Insufficient space for COD\n"); | |
499 | ✗ | return AVERROR_INVALIDDATA; | |
500 | } | ||
501 | |||
502 | 849 | tmp.csty = bytestream2_get_byteu(&s->g); | |
503 | |||
504 | // get progression order | ||
505 | 849 | tmp.prog_order = bytestream2_get_byteu(&s->g); | |
506 | |||
507 | 849 | tmp.nlayers = bytestream2_get_be16u(&s->g); | |
508 | 849 | tmp.mct = bytestream2_get_byteu(&s->g); // multiple component transformation | |
509 | |||
510 |
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849 | if (tmp.mct && s->ncomponents < 3) { |
511 | ✗ | av_log(s->avctx, AV_LOG_ERROR, | |
512 | "MCT %"PRIu8" with too few components (%d)\n", | ||
513 | ✗ | tmp.mct, s->ncomponents); | |
514 | ✗ | return AVERROR_INVALIDDATA; | |
515 | } | ||
516 | |||
517 |
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849 | if ((ret = get_cox(s, &tmp)) < 0) |
518 | ✗ | return ret; | |
519 | 849 | tmp.init = 1; | |
520 |
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3567 | for (compno = 0; compno < s->ncomponents; compno++) |
521 |
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2718 | if (!(properties[compno] & HAD_COC)) |
522 | 2718 | memcpy(c + compno, &tmp, sizeof(tmp)); | |
523 | 849 | return 0; | |
524 | } | ||
525 | |||
526 | /* Get coding parameters for a component in the whole image or a | ||
527 | * particular tile. */ | ||
528 | 18 | static int get_coc(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c, | |
529 | uint8_t *properties) | ||
530 | { | ||
531 | int compno, ret; | ||
532 | uint8_t has_eph, has_sop; | ||
533 | |||
534 |
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18 | if (bytestream2_get_bytes_left(&s->g) < 2) { |
535 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Insufficient space for COC\n"); | |
536 | ✗ | return AVERROR_INVALIDDATA; | |
537 | } | ||
538 | |||
539 | 18 | compno = bytestream2_get_byteu(&s->g); | |
540 | |||
541 |
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18 | if (compno >= s->ncomponents) { |
542 | ✗ | av_log(s->avctx, AV_LOG_ERROR, | |
543 | "Invalid compno %d. There are %d components in the image.\n", | ||
544 | compno, s->ncomponents); | ||
545 | ✗ | return AVERROR_INVALIDDATA; | |
546 | } | ||
547 | |||
548 | 18 | c += compno; | |
549 | 18 | has_eph = c->csty & JPEG2000_CSTY_EPH; | |
550 | 18 | has_sop = c->csty & JPEG2000_CSTY_SOP; | |
551 | 18 | c->csty = bytestream2_get_byteu(&s->g); | |
552 | 18 | c->csty |= has_eph; //do not override eph present bits from COD | |
553 | 18 | c->csty |= has_sop; //do not override sop present bits from COD | |
554 | |||
555 |
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18 | if ((ret = get_cox(s, c)) < 0) |
556 | ✗ | return ret; | |
557 | |||
558 | 18 | properties[compno] |= HAD_COC; | |
559 | 18 | c->init = 1; | |
560 | 18 | return 0; | |
561 | } | ||
562 | |||
563 | 4 | static int get_rgn(Jpeg2000DecoderContext *s, int n) | |
564 | { | ||
565 | uint16_t compno; | ||
566 |
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4 | compno = (s->ncomponents < 257)? bytestream2_get_byte(&s->g): |
567 | ✗ | bytestream2_get_be16u(&s->g); | |
568 |
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4 | if (bytestream2_get_byte(&s->g)) { |
569 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Invalid RGN header.\n"); | |
570 | ✗ | return AVERROR_INVALIDDATA; // SRgn field value is 0 | |
571 | } | ||
572 | // SPrgn field | ||
573 | // Currently compno cannot be greater than 4. | ||
574 | // However, future implementation should support compno up to 65536 | ||
575 |
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4 | if (compno < s->ncomponents) { |
576 | int v; | ||
577 |
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4 | if (s->curtileno == -1) { |
578 | ✗ | v = bytestream2_get_byte(&s->g); | |
579 | ✗ | if (v > 30) | |
580 | ✗ | return AVERROR_PATCHWELCOME; | |
581 | ✗ | s->roi_shift[compno] = v; | |
582 | } else { | ||
583 |
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4 | if (s->tile[s->curtileno].tp_idx != 0) |
584 | ✗ | return AVERROR_INVALIDDATA; // marker occurs only in first tile part of tile | |
585 | 4 | v = bytestream2_get_byte(&s->g); | |
586 |
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4 | if (v > 30) |
587 | ✗ | return AVERROR_PATCHWELCOME; | |
588 | 4 | s->tile[s->curtileno].comp[compno].roi_shift = v; | |
589 | } | ||
590 | 4 | return 0; | |
591 | } | ||
592 | ✗ | return AVERROR_INVALIDDATA; | |
593 | } | ||
594 | |||
595 | /* Get common part for QCD and QCC segments. */ | ||
596 | 874 | static int get_qcx(Jpeg2000DecoderContext *s, int n, Jpeg2000QuantStyle *q) | |
597 | { | ||
598 | int i, x; | ||
599 | |||
600 |
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874 | if (bytestream2_get_bytes_left(&s->g) < 1) |
601 | ✗ | return AVERROR_INVALIDDATA; | |
602 | |||
603 | 874 | x = bytestream2_get_byteu(&s->g); // Sqcd | |
604 | |||
605 | 874 | q->nguardbits = x >> 5; | |
606 | 874 | q->quantsty = x & 0x1f; | |
607 | |||
608 |
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874 | if (q->quantsty == JPEG2000_QSTY_NONE) { |
609 | 641 | n -= 3; | |
610 |
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641 | if (bytestream2_get_bytes_left(&s->g) < n || |
611 | n > JPEG2000_MAX_DECLEVELS*3) | ||
612 | ✗ | return AVERROR_INVALIDDATA; | |
613 |
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12625 | for (i = 0; i < n; i++) |
614 | 11984 | q->expn[i] = bytestream2_get_byteu(&s->g) >> 3; | |
615 |
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233 | } else if (q->quantsty == JPEG2000_QSTY_SI) { |
616 |
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6 | if (bytestream2_get_bytes_left(&s->g) < 2) |
617 | ✗ | return AVERROR_INVALIDDATA; | |
618 | 6 | x = bytestream2_get_be16u(&s->g); | |
619 | 6 | q->expn[0] = x >> 11; | |
620 | 6 | q->mant[0] = x & 0x7ff; | |
621 |
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594 | for (i = 1; i < JPEG2000_MAX_DECLEVELS * 3; i++) { |
622 | 588 | int curexpn = FFMAX(0, q->expn[0] - (i - 1) / 3); | |
623 | 588 | q->expn[i] = curexpn; | |
624 | 588 | q->mant[i] = q->mant[0]; | |
625 | } | ||
626 | } else { | ||
627 | 227 | n = (n - 3) >> 1; | |
628 |
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227 | if (bytestream2_get_bytes_left(&s->g) < 2 * n || |
629 | n > JPEG2000_MAX_DECLEVELS*3) | ||
630 | ✗ | return AVERROR_INVALIDDATA; | |
631 |
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4495 | for (i = 0; i < n; i++) { |
632 | 4268 | x = bytestream2_get_be16u(&s->g); | |
633 | 4268 | q->expn[i] = x >> 11; | |
634 | 4268 | q->mant[i] = x & 0x7ff; | |
635 | } | ||
636 | } | ||
637 | 874 | return 0; | |
638 | } | ||
639 | |||
640 | /* Get quantization parameters for a particular tile or a whole image. */ | ||
641 | 849 | static int get_qcd(Jpeg2000DecoderContext *s, int n, Jpeg2000QuantStyle *q, | |
642 | const uint8_t *properties) | ||
643 | { | ||
644 | Jpeg2000QuantStyle tmp; | ||
645 | int compno, ret; | ||
646 | |||
647 | 849 | memset(&tmp, 0, sizeof(tmp)); | |
648 | |||
649 |
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849 | if ((ret = get_qcx(s, n, &tmp)) < 0) |
650 | ✗ | return ret; | |
651 |
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3567 | for (compno = 0; compno < s->ncomponents; compno++) |
652 |
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2718 | if (!(properties[compno] & HAD_QCC)) |
653 | 2718 | memcpy(q + compno, &tmp, sizeof(tmp)); | |
654 | 849 | return 0; | |
655 | } | ||
656 | |||
657 | /* Get quantization parameters for a component in the whole image | ||
658 | * on in a particular tile. */ | ||
659 | 25 | static int get_qcc(Jpeg2000DecoderContext *s, int n, Jpeg2000QuantStyle *q, | |
660 | uint8_t *properties) | ||
661 | { | ||
662 | int compno; | ||
663 | |||
664 |
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25 | if (bytestream2_get_bytes_left(&s->g) < 1) |
665 | ✗ | return AVERROR_INVALIDDATA; | |
666 | |||
667 | 25 | compno = bytestream2_get_byteu(&s->g); | |
668 | |||
669 |
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25 | if (compno >= s->ncomponents) { |
670 | ✗ | av_log(s->avctx, AV_LOG_ERROR, | |
671 | "Invalid compno %d. There are %d components in the image.\n", | ||
672 | compno, s->ncomponents); | ||
673 | ✗ | return AVERROR_INVALIDDATA; | |
674 | } | ||
675 | |||
676 | 25 | properties[compno] |= HAD_QCC; | |
677 | 25 | return get_qcx(s, n - 1, q + compno); | |
678 | } | ||
679 | |||
680 | 8 | static int get_poc(Jpeg2000DecoderContext *s, int size, Jpeg2000POC *p) | |
681 | { | ||
682 | int i; | ||
683 |
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8 | int elem_size = s->ncomponents <= 257 ? 7 : 9; |
684 | 8 | Jpeg2000POC tmp = {{{0}}}; | |
685 | |||
686 |
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8 | if (bytestream2_get_bytes_left(&s->g) < 5 || size < 2 + elem_size) { |
687 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Insufficient space for POC\n"); | |
688 | ✗ | return AVERROR_INVALIDDATA; | |
689 | } | ||
690 | |||
691 |
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8 | if (elem_size > 7) { |
692 | ✗ | avpriv_request_sample(s->avctx, "Fat POC not supported"); | |
693 | ✗ | return AVERROR_PATCHWELCOME; | |
694 | } | ||
695 | |||
696 | 8 | tmp.nb_poc = (size - 2) / elem_size; | |
697 |
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8 | if (tmp.nb_poc > MAX_POCS) { |
698 | ✗ | avpriv_request_sample(s->avctx, "Too many POCs (%d)", tmp.nb_poc); | |
699 | ✗ | return AVERROR_PATCHWELCOME; | |
700 | } | ||
701 | |||
702 |
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16 | for (i = 0; i<tmp.nb_poc; i++) { |
703 | 8 | Jpeg2000POCEntry *e = &tmp.poc[i]; | |
704 | 8 | e->RSpoc = bytestream2_get_byteu(&s->g); | |
705 | 8 | e->CSpoc = bytestream2_get_byteu(&s->g); | |
706 | 8 | e->LYEpoc = bytestream2_get_be16u(&s->g); | |
707 | 8 | e->REpoc = bytestream2_get_byteu(&s->g); | |
708 | 8 | e->CEpoc = bytestream2_get_byteu(&s->g); | |
709 | 8 | e->Ppoc = bytestream2_get_byteu(&s->g); | |
710 |
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8 | if (!e->CEpoc) |
711 | ✗ | e->CEpoc = 256; | |
712 |
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8 | if (e->CEpoc > s->ncomponents) |
713 | 4 | e->CEpoc = s->ncomponents; | |
714 |
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8 | if ( e->RSpoc >= e->REpoc || e->REpoc > 33 |
715 |
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8 | || e->CSpoc >= e->CEpoc || e->CEpoc > s->ncomponents |
716 |
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8 | || !e->LYEpoc) { |
717 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "POC Entry %d is invalid (%d, %d, %d, %d, %d, %d)\n", i, | |
718 | ✗ | e->RSpoc, e->CSpoc, e->LYEpoc, e->REpoc, e->CEpoc, e->Ppoc | |
719 | ); | ||
720 | ✗ | return AVERROR_INVALIDDATA; | |
721 | } | ||
722 | } | ||
723 | |||
724 |
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8 | if (!p->nb_poc || p->is_default) { |
725 | 6 | *p = tmp; | |
726 | } else { | ||
727 |
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2 | if (p->nb_poc + tmp.nb_poc > MAX_POCS) { |
728 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Insufficient space for POC\n"); | |
729 | ✗ | return AVERROR_INVALIDDATA; | |
730 | } | ||
731 | 2 | memcpy(p->poc + p->nb_poc, tmp.poc, tmp.nb_poc * sizeof(tmp.poc[0])); | |
732 | 2 | p->nb_poc += tmp.nb_poc; | |
733 | } | ||
734 | |||
735 | 8 | p->is_default = 0; | |
736 | |||
737 | 8 | return 0; | |
738 | } | ||
739 | |||
740 | |||
741 | /* Get start of tile segment. */ | ||
742 | 3224 | static int get_sot(Jpeg2000DecoderContext *s, int n) | |
743 | { | ||
744 | Jpeg2000TilePart *tp; | ||
745 | uint16_t Isot; | ||
746 | uint32_t Psot; | ||
747 | unsigned TPsot; | ||
748 | |||
749 |
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3224 | if (bytestream2_get_bytes_left(&s->g) < 8) |
750 | ✗ | return AVERROR_INVALIDDATA; | |
751 | |||
752 | 3224 | s->curtileno = 0; | |
753 | 3224 | Isot = bytestream2_get_be16u(&s->g); // Isot | |
754 |
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3224 | if (Isot >= s->numXtiles * s->numYtiles) |
755 | ✗ | return AVERROR_INVALIDDATA; | |
756 | |||
757 | 3224 | s->curtileno = Isot; | |
758 | 3224 | Psot = bytestream2_get_be32u(&s->g); // Psot | |
759 | 3224 | TPsot = bytestream2_get_byteu(&s->g); // TPsot | |
760 | |||
761 | /* Read TNSot but not used */ | ||
762 | 3224 | bytestream2_get_byteu(&s->g); // TNsot | |
763 | |||
764 |
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3224 | if (!Psot) |
765 | ✗ | Psot = bytestream2_get_bytes_left(&s->g) - 2 + n + 2; | |
766 | |||
767 |
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3224 | if (Psot > bytestream2_get_bytes_left(&s->g) - 2 + n + 2) { |
768 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Psot %"PRIu32" too big\n", Psot); | |
769 | ✗ | return AVERROR_INVALIDDATA; | |
770 | } | ||
771 | |||
772 |
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3224 | if (TPsot >= FF_ARRAY_ELEMS(s->tile[Isot].tile_part)) { |
773 | ✗ | avpriv_request_sample(s->avctx, "Too many tile parts"); | |
774 | ✗ | return AVERROR_PATCHWELCOME; | |
775 | } | ||
776 | |||
777 | 3224 | s->tile[Isot].tp_idx = TPsot; | |
778 | 3224 | tp = s->tile[Isot].tile_part + TPsot; | |
779 | 3224 | tp->tile_index = Isot; | |
780 | 3224 | tp->tp_end = s->g.buffer + Psot - n - 2; | |
781 | |||
782 |
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3224 | if (!TPsot) { |
783 | 3208 | Jpeg2000Tile *tile = s->tile + s->curtileno; | |
784 | |||
785 | /* copy defaults */ | ||
786 | 3208 | memcpy(tile->codsty, s->codsty, s->ncomponents * sizeof(Jpeg2000CodingStyle)); | |
787 | 3208 | memcpy(tile->qntsty, s->qntsty, s->ncomponents * sizeof(Jpeg2000QuantStyle)); | |
788 | 3208 | memcpy(&tile->poc , &s->poc , sizeof(tile->poc)); | |
789 | 3208 | tile->poc.is_default = 1; | |
790 | } | ||
791 | |||
792 | 3224 | return 0; | |
793 | } | ||
794 | |||
795 | 4 | static int read_crg(Jpeg2000DecoderContext *s, int n) | |
796 | { | ||
797 |
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4 | if (s->ncomponents*4 != n - 2) { |
798 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Invalid CRG marker.\n"); | |
799 | ✗ | return AVERROR_INVALIDDATA; | |
800 | } | ||
801 | 4 | bytestream2_skip(&s->g, n - 2); | |
802 | 4 | return 0; | |
803 | } | ||
804 | /* Tile-part lengths: see ISO 15444-1:2002, section A.7.1 | ||
805 | * Used to know the number of tile parts and lengths. | ||
806 | * There may be multiple TLMs in the header. | ||
807 | * TODO: The function is not used for tile-parts management, nor anywhere else. | ||
808 | * It can be useful to allocate memory for tile parts, before managing the SOT | ||
809 | * markers. Parsing the TLM header is needed to increment the input header | ||
810 | * buffer. | ||
811 | * This marker is mandatory for DCI. */ | ||
812 | 11 | static int get_tlm(Jpeg2000DecoderContext *s, int n) | |
813 | { | ||
814 | uint8_t Stlm, ST, SP, tile_tlm, i; | ||
815 | 11 | bytestream2_get_byte(&s->g); /* Ztlm: skipped */ | |
816 | 11 | Stlm = bytestream2_get_byte(&s->g); | |
817 | |||
818 | // too complex ? ST = ((Stlm >> 4) & 0x01) + ((Stlm >> 4) & 0x02); | ||
819 | 11 | ST = (Stlm >> 4) & 0x03; | |
820 |
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11 | if (ST == 0x03) { |
821 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "TLM marker contains invalid ST value.\n"); | |
822 | ✗ | return AVERROR_INVALIDDATA; | |
823 | } | ||
824 | |||
825 | 11 | SP = (Stlm >> 6) & 0x01; | |
826 | 11 | tile_tlm = (n - 4) / ((SP + 1) * 2 + ST); | |
827 |
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49 | for (i = 0; i < tile_tlm; i++) { |
828 |
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38 | switch (ST) { |
829 | ✗ | case 0: | |
830 | ✗ | break; | |
831 | 17 | case 1: | |
832 | 17 | bytestream2_get_byte(&s->g); | |
833 | 17 | break; | |
834 | 21 | case 2: | |
835 | 21 | bytestream2_get_be16(&s->g); | |
836 | 21 | break; | |
837 | ✗ | case 3: | |
838 | ✗ | bytestream2_get_be32(&s->g); | |
839 | ✗ | break; | |
840 | } | ||
841 |
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38 | if (SP == 0) { |
842 | ✗ | bytestream2_get_be16(&s->g); | |
843 | } else { | ||
844 | 38 | bytestream2_get_be32(&s->g); | |
845 | } | ||
846 | } | ||
847 | 11 | return 0; | |
848 | } | ||
849 | |||
850 | 514 | static int get_plt(Jpeg2000DecoderContext *s, int n) | |
851 | { | ||
852 | int i; | ||
853 | int v; | ||
854 | |||
855 | 514 | av_log(s->avctx, AV_LOG_DEBUG, | |
856 | 514 | "PLT marker at pos 0x%X\n", bytestream2_tell(&s->g) - 4); | |
857 | |||
858 |
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514 | if (n < 4) |
859 | ✗ | return AVERROR_INVALIDDATA; | |
860 | |||
861 | 514 | /*Zplt =*/ bytestream2_get_byte(&s->g); | |
862 | |||
863 |
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73966 | for (i = 0; i < n - 3; i++) { |
864 | 73452 | v = bytestream2_get_byte(&s->g); | |
865 | } | ||
866 |
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514 | if (v & 0x80) |
867 | ✗ | return AVERROR_INVALIDDATA; | |
868 | |||
869 | 514 | return 0; | |
870 | } | ||
871 | |||
872 | ✗ | static int get_ppm(Jpeg2000DecoderContext *s, int n) | |
873 | { | ||
874 | void *new; | ||
875 | |||
876 | ✗ | if (n < 3) { | |
877 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Invalid length for PPM data.\n"); | |
878 | ✗ | return AVERROR_INVALIDDATA; | |
879 | } | ||
880 | ✗ | bytestream2_get_byte(&s->g); //Zppm is skipped and not used | |
881 | ✗ | new = av_realloc(s->packed_headers, | |
882 | ✗ | s->packed_headers_size + n - 3); | |
883 | ✗ | if (new) { | |
884 | ✗ | s->packed_headers = new; | |
885 | } else | ||
886 | ✗ | return AVERROR(ENOMEM); | |
887 | ✗ | s->has_ppm = 1; | |
888 | ✗ | memset(&s->packed_headers_stream, 0, sizeof(s->packed_headers_stream)); | |
889 | ✗ | bytestream2_get_bufferu(&s->g, s->packed_headers + s->packed_headers_size, | |
890 | ✗ | n - 3); | |
891 | ✗ | s->packed_headers_size += n - 3; | |
892 | |||
893 | ✗ | return 0; | |
894 | } | ||
895 | |||
896 | ✗ | static int get_ppt(Jpeg2000DecoderContext *s, int n) | |
897 | { | ||
898 | Jpeg2000Tile *tile; | ||
899 | void *new; | ||
900 | |||
901 | ✗ | if (n < 3) { | |
902 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Invalid length for PPT data.\n"); | |
903 | ✗ | return AVERROR_INVALIDDATA; | |
904 | } | ||
905 | ✗ | if (s->curtileno < 0) | |
906 | ✗ | return AVERROR_INVALIDDATA; | |
907 | |||
908 | ✗ | tile = &s->tile[s->curtileno]; | |
909 | ✗ | if (tile->tp_idx != 0) { | |
910 | ✗ | av_log(s->avctx, AV_LOG_ERROR, | |
911 | "PPT marker can occur only on first tile part of a tile.\n"); | ||
912 | ✗ | return AVERROR_INVALIDDATA; | |
913 | } | ||
914 | |||
915 | ✗ | tile->has_ppt = 1; // this tile has a ppt marker | |
916 | ✗ | bytestream2_get_byte(&s->g); // Zppt is skipped and not used | |
917 | ✗ | new = av_realloc(tile->packed_headers, | |
918 | ✗ | tile->packed_headers_size + n - 3); | |
919 | ✗ | if (new) { | |
920 | ✗ | tile->packed_headers = new; | |
921 | } else | ||
922 | ✗ | return AVERROR(ENOMEM); | |
923 | ✗ | memset(&tile->packed_headers_stream, 0, sizeof(tile->packed_headers_stream)); | |
924 | ✗ | bytestream2_get_bufferu(&s->g, tile->packed_headers + tile->packed_headers_size, n - 3); | |
925 | ✗ | tile->packed_headers_size += n - 3; | |
926 | |||
927 | ✗ | return 0; | |
928 | } | ||
929 | |||
930 | 2877 | static int init_tile(Jpeg2000DecoderContext *s, int tileno) | |
931 | { | ||
932 | int compno; | ||
933 | 2877 | int tilex = tileno % s->numXtiles; | |
934 | 2877 | int tiley = tileno / s->numXtiles; | |
935 | 2877 | Jpeg2000Tile *tile = s->tile + tileno; | |
936 | |||
937 |
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2877 | if (!tile->comp) |
938 | ✗ | return AVERROR(ENOMEM); | |
939 | |||
940 | 2877 | tile->coord[0][0] = av_clip(tilex * (int64_t)s->tile_width + s->tile_offset_x, s->image_offset_x, s->width); | |
941 | 2877 | tile->coord[0][1] = av_clip((tilex + 1) * (int64_t)s->tile_width + s->tile_offset_x, s->image_offset_x, s->width); | |
942 | 2877 | tile->coord[1][0] = av_clip(tiley * (int64_t)s->tile_height + s->tile_offset_y, s->image_offset_y, s->height); | |
943 | 2877 | tile->coord[1][1] = av_clip((tiley + 1) * (int64_t)s->tile_height + s->tile_offset_y, s->image_offset_y, s->height); | |
944 | |||
945 |
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12129 | for (compno = 0; compno < s->ncomponents; compno++) { |
946 | 9252 | Jpeg2000Component *comp = tile->comp + compno; | |
947 | 9252 | Jpeg2000CodingStyle *codsty = tile->codsty + compno; | |
948 | 9252 | Jpeg2000QuantStyle *qntsty = tile->qntsty + compno; | |
949 | int ret; // global bandno | ||
950 | |||
951 | 9252 | comp->coord_o[0][0] = tile->coord[0][0]; | |
952 | 9252 | comp->coord_o[0][1] = tile->coord[0][1]; | |
953 | 9252 | comp->coord_o[1][0] = tile->coord[1][0]; | |
954 | 9252 | comp->coord_o[1][1] = tile->coord[1][1]; | |
955 | |||
956 | 9252 | comp->coord_o[0][0] = ff_jpeg2000_ceildiv(comp->coord_o[0][0], s->cdx[compno]); | |
957 | 9252 | comp->coord_o[0][1] = ff_jpeg2000_ceildiv(comp->coord_o[0][1], s->cdx[compno]); | |
958 | 9252 | comp->coord_o[1][0] = ff_jpeg2000_ceildiv(comp->coord_o[1][0], s->cdy[compno]); | |
959 | 9252 | comp->coord_o[1][1] = ff_jpeg2000_ceildiv(comp->coord_o[1][1], s->cdy[compno]); | |
960 | |||
961 | 9252 | comp->coord[0][0] = ff_jpeg2000_ceildivpow2(comp->coord_o[0][0], s->reduction_factor); | |
962 | 9252 | comp->coord[0][1] = ff_jpeg2000_ceildivpow2(comp->coord_o[0][1], s->reduction_factor); | |
963 | 9252 | comp->coord[1][0] = ff_jpeg2000_ceildivpow2(comp->coord_o[1][0], s->reduction_factor); | |
964 | 9252 | comp->coord[1][1] = ff_jpeg2000_ceildivpow2(comp->coord_o[1][1], s->reduction_factor); | |
965 | |||
966 |
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9252 | if (!comp->roi_shift) |
967 | 9250 | comp->roi_shift = s->roi_shift[compno]; | |
968 |
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9252 | if (!codsty->init) |
969 | ✗ | return AVERROR_INVALIDDATA; | |
970 |
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9252 | if (ret = ff_jpeg2000_init_component(comp, codsty, qntsty, |
971 | 9252 | s->cbps[compno], s->cdx[compno], | |
972 | s->cdy[compno], s->avctx)) | ||
973 | ✗ | return ret; | |
974 | } | ||
975 | 2877 | return 0; | |
976 | } | ||
977 | |||
978 | /* Read the number of coding passes. */ | ||
979 | 890514 | static int getnpasses(Jpeg2000DecoderContext *s) | |
980 | { | ||
981 | int num; | ||
982 |
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890514 | if (!get_bits(s, 1)) |
983 | 61437 | return 1; | |
984 |
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829077 | if (!get_bits(s, 1)) |
985 | 28166 | return 2; | |
986 |
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800911 | if ((num = get_bits(s, 2)) != 3) |
987 |
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165539 | return num < 0 ? num : 3 + num; |
988 |
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635372 | if ((num = get_bits(s, 5)) != 31) |
989 |
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592751 | return num < 0 ? num : 6 + num; |
990 | 42621 | num = get_bits(s, 7); | |
991 |
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42621 | return num < 0 ? num : 37 + num; |
992 | } | ||
993 | |||
994 | 890514 | static int getlblockinc(Jpeg2000DecoderContext *s) | |
995 | { | ||
996 | 890514 | int res = 0, ret; | |
997 |
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1391241 | while (ret = get_bits(s, 1)) { |
998 |
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|
500727 | if (ret < 0) |
999 | ✗ | return ret; | |
1000 | 500727 | res++; | |
1001 | } | ||
1002 | 890514 | return res; | |
1003 | } | ||
1004 | |||
1005 | ✗ | static inline void select_header(Jpeg2000DecoderContext *s, const Jpeg2000Tile *tile, | |
1006 | int *tp_index) | ||
1007 | { | ||
1008 | ✗ | s->g = tile->tile_part[*tp_index].header_tpg; | |
1009 | ✗ | if (bytestream2_get_bytes_left(&s->g) == 0 && s->bit_index == 8) { | |
1010 | ✗ | if (*tp_index < FF_ARRAY_ELEMS(tile->tile_part) - 1) { | |
1011 | ✗ | s->g = tile->tile_part[++(*tp_index)].tpg; | |
1012 | } | ||
1013 | } | ||
1014 | ✗ | } | |
1015 | |||
1016 | 87096 | static inline void select_stream(Jpeg2000DecoderContext *s, const Jpeg2000Tile *tile, | |
1017 | int *tp_index, const Jpeg2000CodingStyle *codsty) | ||
1018 | { | ||
1019 | 87096 | s->g = tile->tile_part[*tp_index].tpg; | |
1020 |
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87096 | if (bytestream2_get_bytes_left(&s->g) == 0 && s->bit_index == 8) { |
1021 |
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|
5 | if (*tp_index < FF_ARRAY_ELEMS(tile->tile_part) - 1) { |
1022 | 5 | s->g = tile->tile_part[++(*tp_index)].tpg; | |
1023 | } | ||
1024 | } | ||
1025 |
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87096 | if (codsty->csty & JPEG2000_CSTY_SOP) { |
1026 |
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|
25452 | if (bytestream2_peek_be32(&s->g) == JPEG2000_SOP_FIXED_BYTES) |
1027 | 25452 | bytestream2_skip(&s->g, JPEG2000_SOP_BYTE_LENGTH); | |
1028 | else | ||
1029 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "SOP marker not found. instead %X\n", bytestream2_peek_be32(&s->g)); | |
1030 | } | ||
1031 | 87096 | } | |
1032 | |||
1033 | 87168 | static int jpeg2000_decode_packet(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile, int *tp_index, | |
1034 | const Jpeg2000CodingStyle *codsty, | ||
1035 | Jpeg2000ResLevel *rlevel, int precno, | ||
1036 | int layno, const uint8_t *expn, int numgbits) | ||
1037 | { | ||
1038 | int bandno, cblkno, ret, nb_code_blocks; | ||
1039 | int cwsno; | ||
1040 | |||
1041 |
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✓ Branch 1 taken 87096 times.
|
87168 | if (layno < rlevel->band[0].prec[precno].decoded_layers) |
1042 | 72 | return 0; | |
1043 | 87096 | rlevel->band[0].prec[precno].decoded_layers = layno + 1; | |
1044 | // Select stream to read from | ||
1045 |
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87096 | if (s->has_ppm) |
1046 | ✗ | select_header(s, tile, tp_index); | |
1047 |
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|
87096 | else if (tile->has_ppt) |
1048 | ✗ | s->g = tile->packed_headers_stream; | |
1049 | else | ||
1050 | 87096 | select_stream(s, tile, tp_index, codsty); | |
1051 | |||
1052 |
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|
87096 | if (!(ret = get_bits(s, 1))) { |
1053 | 3926 | jpeg2000_flush(s); | |
1054 | 3926 | goto skip_data; | |
1055 |
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|
83170 | } else if (ret < 0) |
1056 | ✗ | return ret; | |
1057 | |||
1058 |
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302982 | for (bandno = 0; bandno < rlevel->nbands; bandno++) { |
1059 | 219812 | Jpeg2000Band *band = rlevel->band + bandno; | |
1060 | 219812 | Jpeg2000Prec *prec = band->prec + precno; | |
1061 | |||
1062 |
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219812 | if (band->coord[0][0] == band->coord[0][1] || |
1063 |
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✓ Branch 1 taken 212636 times.
|
219810 | band->coord[1][0] == band->coord[1][1]) |
1064 | 7176 | continue; | |
1065 | 212636 | nb_code_blocks = prec->nb_codeblocks_height * | |
1066 | 212636 | prec->nb_codeblocks_width; | |
1067 |
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|
1213949 | for (cblkno = 0; cblkno < nb_code_blocks; cblkno++) { |
1068 | 1001313 | Jpeg2000Cblk *cblk = prec->cblk + cblkno; | |
1069 | int incl, newpasses, llen; | ||
1070 | void *tmp; | ||
1071 | |||
1072 |
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|
1001313 | if (cblk->npasses) |
1073 | 87477 | incl = get_bits(s, 1); | |
1074 | else | ||
1075 | 913836 | incl = tag_tree_decode(s, prec->cblkincl + cblkno, layno + 1) == layno; | |
1076 |
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|
1001313 | if (!incl) |
1077 | 110799 | continue; | |
1078 |
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|
890514 | else if (incl < 0) |
1079 | ✗ | return incl; | |
1080 | |||
1081 |
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✓ Branch 1 taken 77420 times.
|
890514 | if (!cblk->npasses) { |
1082 | 813094 | int zbp = tag_tree_decode(s, prec->zerobits + cblkno, 100); | |
1083 | 813094 | int v = expn[bandno] + numgbits - 1 - zbp; | |
1084 | |||
1085 |
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|
813094 | if (v < 0 || v > 30) { |
1086 | ✗ | av_log(s->avctx, AV_LOG_ERROR, | |
1087 | "nonzerobits %d invalid or unsupported\n", v); | ||
1088 | ✗ | return AVERROR_INVALIDDATA; | |
1089 | } | ||
1090 | 813094 | cblk->zbp = zbp; | |
1091 | 813094 | cblk->nonzerobits = v; | |
1092 | } | ||
1093 |
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|
890514 | if ((newpasses = getnpasses(s)) < 0) |
1094 | ✗ | return newpasses; | |
1095 | av_assert2(newpasses > 0); | ||
1096 |
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|
890514 | if (cblk->npasses + newpasses >= JPEG2000_MAX_PASSES) { |
1097 | ✗ | avpriv_request_sample(s->avctx, "Too many passes"); | |
1098 | ✗ | return AVERROR_PATCHWELCOME; | |
1099 | } | ||
1100 |
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|
890514 | if ((llen = getlblockinc(s)) < 0) |
1101 | ✗ | return llen; | |
1102 |
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|
890514 | if (cblk->lblock + llen + av_log2(newpasses) > 16) { |
1103 | ✗ | avpriv_request_sample(s->avctx, | |
1104 | "Block with length beyond 16 bits"); | ||
1105 | ✗ | return AVERROR_PATCHWELCOME; | |
1106 | } | ||
1107 | |||
1108 | 890514 | cblk->lblock += llen; | |
1109 | |||
1110 | 890514 | cblk->nb_lengthinc = 0; | |
1111 | 890514 | cblk->nb_terminationsinc = 0; | |
1112 | 890514 | av_free(cblk->lengthinc); | |
1113 | 890514 | cblk->lengthinc = av_calloc(newpasses, sizeof(*cblk->lengthinc)); | |
1114 |
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|
890514 | if (!cblk->lengthinc) |
1115 | ✗ | return AVERROR(ENOMEM); | |
1116 | 890514 | tmp = av_realloc_array(cblk->data_start, cblk->nb_terminations + newpasses + 1, sizeof(*cblk->data_start)); | |
1117 |
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|
890514 | if (!tmp) |
1118 | ✗ | return AVERROR(ENOMEM); | |
1119 | 890514 | cblk->data_start = tmp; | |
1120 | do { | ||
1121 | 893042 | int newpasses1 = 0; | |
1122 | |||
1123 |
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|
12693250 | while (newpasses1 < newpasses) { |
1124 | 11804370 | newpasses1 ++; | |
1125 |
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✓ Branch 2 taken 11800208 times.
|
11804370 | if (needs_termination(codsty->cblk_style, cblk->npasses + newpasses1 - 1)) { |
1126 | 4162 | cblk->nb_terminationsinc ++; | |
1127 | 4162 | break; | |
1128 | } | ||
1129 | } | ||
1130 | |||
1131 |
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|
893042 | if (newpasses > 1 && (codsty->cblk_style & JPEG2000_CTSY_HTJ2K_F)) { |
1132 | // Retrieve pass lengths for each pass | ||
1133 | ✗ | int href_passes = (cblk->npasses + newpasses - 1) % 3; | |
1134 | ✗ | int eb = av_log2(newpasses - href_passes); | |
1135 | ✗ | int extra_bit = newpasses > 2 ? 1 : 0; | |
1136 | ✗ | if ((ret = get_bits(s, llen + eb + 3)) < 0) | |
1137 | ✗ | return ret; | |
1138 | ✗ | cblk->pass_lengths[0] = ret; | |
1139 | ✗ | if ((ret = get_bits(s, llen + 3 + extra_bit)) < 0) | |
1140 | ✗ | return ret; | |
1141 | ✗ | cblk->pass_lengths[1] = ret; | |
1142 | ✗ | ret = cblk->pass_lengths[0] + cblk->pass_lengths[1]; | |
1143 | } else { | ||
1144 |
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✓ Branch 2 taken 893042 times.
|
893042 | if ((ret = get_bits(s, av_log2(newpasses1) + cblk->lblock)) < 0) |
1145 | ✗ | return ret; | |
1146 | 893042 | cblk->pass_lengths[0] = ret; | |
1147 | } | ||
1148 |
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|
893042 | if (ret > cblk->data_allocated) { |
1149 | 822065 | size_t new_size = FFMAX(2*cblk->data_allocated, ret); | |
1150 | 822065 | void *new = av_realloc(cblk->data, new_size); | |
1151 |
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|
822065 | if (new) { |
1152 | 822065 | cblk->data = new; | |
1153 | 822065 | cblk->data_allocated = new_size; | |
1154 | } | ||
1155 | } | ||
1156 |
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|
893042 | if (ret > cblk->data_allocated) { |
1157 | ✗ | avpriv_request_sample(s->avctx, | |
1158 | "Block with lengthinc greater than %"SIZE_SPECIFIER"", | ||
1159 | cblk->data_allocated); | ||
1160 | ✗ | return AVERROR_PATCHWELCOME; | |
1161 | } | ||
1162 | 893042 | cblk->lengthinc[cblk->nb_lengthinc++] = ret; | |
1163 | 893042 | cblk->npasses += newpasses1; | |
1164 | 893042 | newpasses -= newpasses1; | |
1165 |
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|
893042 | } while(newpasses); |
1166 | } | ||
1167 | } | ||
1168 | 83170 | jpeg2000_flush(s); | |
1169 | |||
1170 |
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|
83170 | if (codsty->csty & JPEG2000_CSTY_EPH) { |
1171 |
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✗ Branch 2 not taken.
|
25321 | if (bytestream2_peek_be16(&s->g) == JPEG2000_EPH) |
1172 | 25321 | bytestream2_skip(&s->g, 2); | |
1173 | else | ||
1174 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "EPH marker not found. instead %X\n", bytestream2_peek_be32(&s->g)); | |
1175 | } | ||
1176 | |||
1177 | // Save state of stream | ||
1178 |
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|
83170 | if (s->has_ppm) { |
1179 | ✗ | tile->tile_part[*tp_index].header_tpg = s->g; | |
1180 | ✗ | select_stream(s, tile, tp_index, codsty); | |
1181 |
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|
83170 | } else if (tile->has_ppt) { |
1182 | ✗ | tile->packed_headers_stream = s->g; | |
1183 | ✗ | select_stream(s, tile, tp_index, codsty); | |
1184 | } | ||
1185 |
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|
302982 | for (bandno = 0; bandno < rlevel->nbands; bandno++) { |
1186 | 219812 | Jpeg2000Band *band = rlevel->band + bandno; | |
1187 | 219812 | Jpeg2000Prec *prec = band->prec + precno; | |
1188 | |||
1189 | 219812 | nb_code_blocks = prec->nb_codeblocks_height * prec->nb_codeblocks_width; | |
1190 |
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|
1228299 | for (cblkno = 0; cblkno < nb_code_blocks; cblkno++) { |
1191 | 1008487 | Jpeg2000Cblk *cblk = prec->cblk + cblkno; | |
1192 |
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|
1008487 | if (!cblk->nb_terminationsinc && !cblk->lengthinc) |
1193 | 117973 | continue; | |
1194 |
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|
1783556 | for (cwsno = 0; cwsno < cblk->nb_lengthinc; cwsno ++) { |
1195 |
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|
893042 | if (cblk->data_allocated < cblk->length + cblk->lengthinc[cwsno] + 4) { |
1196 | 849413 | size_t new_size = FFMAX(2*cblk->data_allocated, cblk->length + cblk->lengthinc[cwsno] + 4); | |
1197 | 849413 | void *new = av_realloc(cblk->data, new_size); | |
1198 |
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|
849413 | if (new) { |
1199 | 849413 | cblk->data = new; | |
1200 | 849413 | cblk->data_allocated = new_size; | |
1201 | } | ||
1202 | } | ||
1203 |
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✗ Branch 2 not taken.
|
893042 | if ( bytestream2_get_bytes_left(&s->g) < cblk->lengthinc[cwsno] |
1204 |
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✓ Branch 1 taken 893042 times.
|
893042 | || cblk->data_allocated < cblk->length + cblk->lengthinc[cwsno] + 4 |
1205 | ) { | ||
1206 | ✗ | av_log(s->avctx, AV_LOG_ERROR, | |
1207 | "Block length %"PRIu16" or lengthinc %d is too large, left %d\n", | ||
1208 | ✗ | cblk->length, cblk->lengthinc[cwsno], bytestream2_get_bytes_left(&s->g)); | |
1209 | ✗ | return AVERROR_INVALIDDATA; | |
1210 | } | ||
1211 | |||
1212 | 893042 | bytestream2_get_bufferu(&s->g, cblk->data + cblk->length, cblk->lengthinc[cwsno]); | |
1213 | 893042 | cblk->length += cblk->lengthinc[cwsno]; | |
1214 | 893042 | cblk->lengthinc[cwsno] = 0; | |
1215 |
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|
893042 | if (cblk->nb_terminationsinc) { |
1216 | 4162 | cblk->nb_terminationsinc--; | |
1217 | 4162 | cblk->nb_terminations++; | |
1218 | 4162 | cblk->data[cblk->length++] = 0xFF; | |
1219 | 4162 | cblk->data[cblk->length++] = 0xFF; | |
1220 | 4162 | cblk->data_start[cblk->nb_terminations] = cblk->length; | |
1221 | } | ||
1222 | } | ||
1223 | 890514 | av_freep(&cblk->lengthinc); | |
1224 | } | ||
1225 | } | ||
1226 | // Save state of stream | ||
1227 | 83170 | tile->tile_part[*tp_index].tpg = s->g; | |
1228 | 83170 | return 0; | |
1229 | |||
1230 | 3926 | skip_data: | |
1231 |
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|
3926 | if (codsty->csty & JPEG2000_CSTY_EPH) { |
1232 | ✗ | if (bytestream2_peek_be16(&s->g) == JPEG2000_EPH) | |
1233 | ✗ | bytestream2_skip(&s->g, 2); | |
1234 | else | ||
1235 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "EPH marker not found. instead %X\n", bytestream2_peek_be32(&s->g)); | |
1236 | } | ||
1237 |
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|
3926 | if (s->has_ppm) { |
1238 | ✗ | tile->tile_part[*tp_index].header_tpg = s->g; | |
1239 | ✗ | select_stream(s, tile, tp_index, codsty); | |
1240 |
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|
3926 | } else if (tile->has_ppt) { |
1241 | ✗ | tile->packed_headers_stream = s->g; | |
1242 | ✗ | select_stream(s, tile, tp_index, codsty); | |
1243 | } | ||
1244 | 3926 | tile->tile_part[*tp_index].tpg = s->g; | |
1245 | 3926 | return 0; | |
1246 | } | ||
1247 | |||
1248 | 2878 | static int jpeg2000_decode_packets_po_iteration(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile, | |
1249 | int RSpoc, int CSpoc, | ||
1250 | int LYEpoc, int REpoc, int CEpoc, | ||
1251 | int Ppoc, int *tp_index) | ||
1252 | { | ||
1253 | 2878 | int ret = 0; | |
1254 | int layno, reslevelno, compno, precno, ok_reslevel; | ||
1255 | int x, y; | ||
1256 | int step_x, step_y; | ||
1257 | |||
1258 |
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|
2878 | switch (Ppoc) { |
1259 | 259 | case JPEG2000_PGOD_RLCP: | |
1260 | 259 | av_log(s->avctx, AV_LOG_DEBUG, "Progression order RLCP\n"); | |
1261 | 259 | ok_reslevel = 1; | |
1262 |
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|
1557 | for (reslevelno = RSpoc; ok_reslevel && reslevelno < REpoc; reslevelno++) { |
1263 | 1298 | ok_reslevel = 0; | |
1264 |
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11683 | for (layno = 0; layno < LYEpoc; layno++) { |
1265 |
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41490 | for (compno = CSpoc; compno < CEpoc; compno++) { |
1266 | 31105 | Jpeg2000CodingStyle *codsty = tile->codsty + compno; | |
1267 | 31105 | Jpeg2000QuantStyle *qntsty = tile->qntsty + compno; | |
1268 |
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✓ Branch 1 taken 6185 times.
|
31105 | if (reslevelno < codsty->nreslevels) { |
1269 | 24920 | Jpeg2000ResLevel *rlevel = tile->comp[compno].reslevel + | |
1270 | reslevelno; | ||
1271 | 24920 | ok_reslevel = 1; | |
1272 |
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|
51340 | for (precno = 0; precno < rlevel->num_precincts_x * rlevel->num_precincts_y; precno++) |
1273 |
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✓ Branch 2 taken 26420 times.
|
26420 | if ((ret = jpeg2000_decode_packet(s, tile, tp_index, |
1274 | codsty, rlevel, | ||
1275 | precno, layno, | ||
1276 | 26420 | qntsty->expn + (reslevelno ? 3 * (reslevelno - 1) + 1 : 0), | |
1277 |
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✓ Branch 1 taken 6185 times.
|
26420 | qntsty->nguardbits)) < 0) |
1278 | ✗ | return ret; | |
1279 | } | ||
1280 | } | ||
1281 | } | ||
1282 | } | ||
1283 | 259 | break; | |
1284 | |||
1285 | 2615 | case JPEG2000_PGOD_LRCP: | |
1286 | 2615 | av_log(s->avctx, AV_LOG_DEBUG, "Progression order LRCP\n"); | |
1287 |
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|
5305 | for (layno = 0; layno < LYEpoc; layno++) { |
1288 | 2690 | ok_reslevel = 1; | |
1289 |
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✓ Branch 3 taken 8 times.
|
23797 | for (reslevelno = RSpoc; ok_reslevel && reslevelno < REpoc; reslevelno++) { |
1290 | 21107 | ok_reslevel = 0; | |
1291 |
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✓ Branch 1 taken 21107 times.
|
89156 | for (compno = CSpoc; compno < CEpoc; compno++) { |
1292 | 68049 | Jpeg2000CodingStyle *codsty = tile->codsty + compno; | |
1293 | 68049 | Jpeg2000QuantStyle *qntsty = tile->qntsty + compno; | |
1294 |
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✓ Branch 1 taken 8550 times.
|
68049 | if (reslevelno < codsty->nreslevels) { |
1295 | 59499 | Jpeg2000ResLevel *rlevel = tile->comp[compno].reslevel + | |
1296 | reslevelno; | ||
1297 | 59499 | ok_reslevel = 1; | |
1298 |
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|
118998 | for (precno = 0; precno < rlevel->num_precincts_x * rlevel->num_precincts_y; precno++) |
1299 |
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59499 | if ((ret = jpeg2000_decode_packet(s, tile, tp_index, |
1300 | codsty, rlevel, | ||
1301 | precno, layno, | ||
1302 | 59499 | qntsty->expn + (reslevelno ? 3 * (reslevelno - 1) + 1 : 0), | |
1303 |
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|
59499 | qntsty->nguardbits)) < 0) |
1304 | ✗ | return ret; | |
1305 | } | ||
1306 | } | ||
1307 | } | ||
1308 | } | ||
1309 | 2615 | break; | |
1310 | |||
1311 | 3 | case JPEG2000_PGOD_CPRL: | |
1312 | 3 | av_log(s->avctx, AV_LOG_DEBUG, "Progression order CPRL\n"); | |
1313 |
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12 | for (compno = CSpoc; compno < CEpoc; compno++) { |
1314 | 9 | Jpeg2000Component *comp = tile->comp + compno; | |
1315 | 9 | Jpeg2000CodingStyle *codsty = tile->codsty + compno; | |
1316 | 9 | Jpeg2000QuantStyle *qntsty = tile->qntsty + compno; | |
1317 | 9 | step_x = 32; | |
1318 | 9 | step_y = 32; | |
1319 | |||
1320 |
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|
9 | if (RSpoc >= FFMIN(codsty->nreslevels, REpoc)) |
1321 | ✗ | continue; | |
1322 | |||
1323 |
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69 | for (reslevelno = RSpoc; reslevelno < FFMIN(codsty->nreslevels, REpoc); reslevelno++) { |
1324 | 60 | uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r | |
1325 | 60 | Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno; | |
1326 | 60 | step_x = FFMIN(step_x, rlevel->log2_prec_width + reducedresno); | |
1327 | 60 | step_y = FFMIN(step_y, rlevel->log2_prec_height + reducedresno); | |
1328 | } | ||
1329 |
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|
9 | if (step_x >= 31 || step_y >= 31){ |
1330 | ✗ | avpriv_request_sample(s->avctx, "CPRL with large step"); | |
1331 | ✗ | return AVERROR_PATCHWELCOME; | |
1332 | } | ||
1333 | 9 | step_x = 1<<step_x; | |
1334 | 9 | step_y = 1<<step_y; | |
1335 | |||
1336 |
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42 | for (y = tile->coord[1][0]; y < tile->coord[1][1]; y = (y/step_y + 1)*step_y) { |
1337 |
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276 | for (x = tile->coord[0][0]; x < tile->coord[0][1]; x = (x/step_x + 1)*step_x) { |
1338 |
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|
1707 | for (reslevelno = RSpoc; reslevelno < FFMIN(codsty->nreslevels, REpoc); reslevelno++) { |
1339 | unsigned prcx, prcy; | ||
1340 | 1464 | uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r | |
1341 | 1464 | Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno; | |
1342 | 1464 | int xc = x / s->cdx[compno]; | |
1343 | 1464 | int yc = y / s->cdy[compno]; | |
1344 | |||
1345 |
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|
1464 | if (yc % (1LL << (rlevel->log2_prec_height + reducedresno)) && y != tile->coord[1][0]) //FIXME this is a subset of the check |
1346 | 816 | continue; | |
1347 | |||
1348 |
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|
648 | if (xc % (1LL << (rlevel->log2_prec_width + reducedresno)) && x != tile->coord[0][0]) //FIXME this is a subset of the check |
1349 | 270 | continue; | |
1350 | |||
1351 | // check if a precinct exists | ||
1352 | 378 | prcx = ff_jpeg2000_ceildivpow2(xc, reducedresno) >> rlevel->log2_prec_width; | |
1353 | 378 | prcy = ff_jpeg2000_ceildivpow2(yc, reducedresno) >> rlevel->log2_prec_height; | |
1354 | 378 | prcx -= ff_jpeg2000_ceildivpow2(comp->coord_o[0][0], reducedresno) >> rlevel->log2_prec_width; | |
1355 | 378 | prcy -= ff_jpeg2000_ceildivpow2(comp->coord_o[1][0], reducedresno) >> rlevel->log2_prec_height; | |
1356 | |||
1357 | 378 | precno = prcx + rlevel->num_precincts_x * prcy; | |
1358 | |||
1359 |
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378 | if (prcx >= rlevel->num_precincts_x || prcy >= rlevel->num_precincts_y) { |
1360 | ✗ | av_log(s->avctx, AV_LOG_WARNING, "prc %d %d outside limits %d %d\n", | |
1361 | prcx, prcy, rlevel->num_precincts_x, rlevel->num_precincts_y); | ||
1362 | ✗ | continue; | |
1363 | } | ||
1364 | |||
1365 |
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|
1452 | for (layno = 0; layno < LYEpoc; layno++) { |
1366 |
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|
1074 | if ((ret = jpeg2000_decode_packet(s, tile, tp_index, codsty, rlevel, |
1367 | precno, layno, | ||
1368 | 1074 | qntsty->expn + (reslevelno ? 3 * (reslevelno - 1) + 1 : 0), | |
1369 |
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|
1074 | qntsty->nguardbits)) < 0) |
1370 | ✗ | return ret; | |
1371 | } | ||
1372 | } | ||
1373 | } | ||
1374 | } | ||
1375 | } | ||
1376 | 3 | break; | |
1377 | |||
1378 | ✗ | case JPEG2000_PGOD_RPCL: | |
1379 | ✗ | av_log(s->avctx, AV_LOG_WARNING, "Progression order RPCL\n"); | |
1380 | ✗ | ok_reslevel = 1; | |
1381 | ✗ | for (reslevelno = RSpoc; ok_reslevel && reslevelno < REpoc; reslevelno++) { | |
1382 | ✗ | ok_reslevel = 0; | |
1383 | ✗ | step_x = 30; | |
1384 | ✗ | step_y = 30; | |
1385 | ✗ | for (compno = CSpoc; compno < CEpoc; compno++) { | |
1386 | ✗ | Jpeg2000Component *comp = tile->comp + compno; | |
1387 | ✗ | Jpeg2000CodingStyle *codsty = tile->codsty + compno; | |
1388 | |||
1389 | ✗ | if (reslevelno < codsty->nreslevels) { | |
1390 | ✗ | uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r | |
1391 | ✗ | Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno; | |
1392 | ✗ | step_x = FFMIN(step_x, rlevel->log2_prec_width + reducedresno); | |
1393 | ✗ | step_y = FFMIN(step_y, rlevel->log2_prec_height + reducedresno); | |
1394 | } | ||
1395 | } | ||
1396 | ✗ | step_x = 1<<step_x; | |
1397 | ✗ | step_y = 1<<step_y; | |
1398 | |||
1399 | ✗ | for (y = tile->coord[1][0]; y < tile->coord[1][1]; y = (y/step_y + 1)*step_y) { | |
1400 | ✗ | for (x = tile->coord[0][0]; x < tile->coord[0][1]; x = (x/step_x + 1)*step_x) { | |
1401 | ✗ | for (compno = CSpoc; compno < CEpoc; compno++) { | |
1402 | ✗ | Jpeg2000Component *comp = tile->comp + compno; | |
1403 | ✗ | Jpeg2000CodingStyle *codsty = tile->codsty + compno; | |
1404 | ✗ | Jpeg2000QuantStyle *qntsty = tile->qntsty + compno; | |
1405 | ✗ | uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r | |
1406 | ✗ | Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno; | |
1407 | unsigned prcx, prcy; | ||
1408 | int trx0, try0; | ||
1409 | |||
1410 | ✗ | if (!s->cdx[compno] || !s->cdy[compno]) | |
1411 | ✗ | return AVERROR_INVALIDDATA; | |
1412 | |||
1413 | ✗ | if (reslevelno >= codsty->nreslevels) | |
1414 | ✗ | continue; | |
1415 | |||
1416 | ✗ | trx0 = ff_jpeg2000_ceildiv(tile->coord[0][0], (int64_t)s->cdx[compno] << reducedresno); | |
1417 | ✗ | try0 = ff_jpeg2000_ceildiv(tile->coord[1][0], (int64_t)s->cdy[compno] << reducedresno); | |
1418 | |||
1419 | ✗ | if (!(y % ((uint64_t)s->cdy[compno] << (rlevel->log2_prec_height + reducedresno)) == 0 || | |
1420 | ✗ | (y == tile->coord[1][0] && ((int64_t)try0 << reducedresno) % (1ULL << (reducedresno + rlevel->log2_prec_height))))) | |
1421 | ✗ | continue; | |
1422 | |||
1423 | ✗ | if (!(x % ((uint64_t)s->cdx[compno] << (rlevel->log2_prec_width + reducedresno)) == 0 || | |
1424 | ✗ | (x == tile->coord[0][0] && ((int64_t)trx0 << reducedresno) % (1ULL << (reducedresno + rlevel->log2_prec_width))))) | |
1425 | ✗ | continue; | |
1426 | |||
1427 | // check if a precinct exists | ||
1428 | ✗ | prcx = ff_jpeg2000_ceildiv(x, (int64_t)s->cdx[compno] << reducedresno) >> rlevel->log2_prec_width; | |
1429 | ✗ | prcy = ff_jpeg2000_ceildiv(y, (int64_t)s->cdy[compno] << reducedresno) >> rlevel->log2_prec_height; | |
1430 | ✗ | prcx -= ff_jpeg2000_ceildivpow2(comp->coord_o[0][0], reducedresno) >> rlevel->log2_prec_width; | |
1431 | ✗ | prcy -= ff_jpeg2000_ceildivpow2(comp->coord_o[1][0], reducedresno) >> rlevel->log2_prec_height; | |
1432 | |||
1433 | ✗ | precno = prcx + rlevel->num_precincts_x * prcy; | |
1434 | |||
1435 | ✗ | ok_reslevel = 1; | |
1436 | ✗ | if (prcx >= rlevel->num_precincts_x || prcy >= rlevel->num_precincts_y) { | |
1437 | ✗ | av_log(s->avctx, AV_LOG_WARNING, "prc %d %d outside limits %d %d\n", | |
1438 | prcx, prcy, rlevel->num_precincts_x, rlevel->num_precincts_y); | ||
1439 | ✗ | continue; | |
1440 | } | ||
1441 | |||
1442 | ✗ | for (layno = 0; layno < LYEpoc; layno++) { | |
1443 | ✗ | if ((ret = jpeg2000_decode_packet(s, tile, tp_index, | |
1444 | codsty, rlevel, | ||
1445 | precno, layno, | ||
1446 | ✗ | qntsty->expn + (reslevelno ? 3 * (reslevelno - 1) + 1 : 0), | |
1447 | ✗ | qntsty->nguardbits)) < 0) | |
1448 | ✗ | return ret; | |
1449 | } | ||
1450 | } | ||
1451 | } | ||
1452 | } | ||
1453 | } | ||
1454 | ✗ | break; | |
1455 | |||
1456 | 1 | case JPEG2000_PGOD_PCRL: | |
1457 | 1 | av_log(s->avctx, AV_LOG_WARNING, "Progression order PCRL\n"); | |
1458 | 1 | step_x = 32; | |
1459 | 1 | step_y = 32; | |
1460 |
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5 | for (compno = CSpoc; compno < CEpoc; compno++) { |
1461 | 4 | Jpeg2000Component *comp = tile->comp + compno; | |
1462 | 4 | Jpeg2000CodingStyle *codsty = tile->codsty + compno; | |
1463 | |||
1464 |
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29 | for (reslevelno = RSpoc; reslevelno < FFMIN(codsty->nreslevels, REpoc); reslevelno++) { |
1465 | 25 | uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r | |
1466 | 25 | Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno; | |
1467 | 25 | step_x = FFMIN(step_x, rlevel->log2_prec_width + reducedresno); | |
1468 | 25 | step_y = FFMIN(step_y, rlevel->log2_prec_height + reducedresno); | |
1469 | } | ||
1470 | } | ||
1471 |
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1 | if (step_x >= 31 || step_y >= 31){ |
1472 | ✗ | avpriv_request_sample(s->avctx, "PCRL with large step"); | |
1473 | ✗ | return AVERROR_PATCHWELCOME; | |
1474 | } | ||
1475 | 1 | step_x = 1<<step_x; | |
1476 | 1 | step_y = 1<<step_y; | |
1477 | |||
1478 |
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2 | for (y = tile->coord[1][0]; y < tile->coord[1][1]; y = (y/step_y + 1)*step_y) { |
1479 |
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2 | for (x = tile->coord[0][0]; x < tile->coord[0][1]; x = (x/step_x + 1)*step_x) { |
1480 |
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5 | for (compno = CSpoc; compno < CEpoc; compno++) { |
1481 | 4 | Jpeg2000Component *comp = tile->comp + compno; | |
1482 | 4 | Jpeg2000CodingStyle *codsty = tile->codsty + compno; | |
1483 | 4 | Jpeg2000QuantStyle *qntsty = tile->qntsty + compno; | |
1484 | |||
1485 |
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4 | if (!s->cdx[compno] || !s->cdy[compno]) |
1486 | ✗ | return AVERROR_INVALIDDATA; | |
1487 | |||
1488 |
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29 | for (reslevelno = RSpoc; reslevelno < FFMIN(codsty->nreslevels, REpoc); reslevelno++) { |
1489 | unsigned prcx, prcy; | ||
1490 | 25 | uint8_t reducedresno = codsty->nreslevels - 1 -reslevelno; // ==> N_L - r | |
1491 | 25 | Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno; | |
1492 | int trx0, try0; | ||
1493 | |||
1494 | 25 | trx0 = ff_jpeg2000_ceildiv(tile->coord[0][0], (int64_t)s->cdx[compno] << reducedresno); | |
1495 | 25 | try0 = ff_jpeg2000_ceildiv(tile->coord[1][0], (int64_t)s->cdy[compno] << reducedresno); | |
1496 | |||
1497 |
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25 | if (!(y % ((uint64_t)s->cdy[compno] << (rlevel->log2_prec_height + reducedresno)) == 0 || |
1498 | ✗ | (y == tile->coord[1][0] && ((int64_t)try0 << reducedresno) % (1ULL << (reducedresno + rlevel->log2_prec_height))))) | |
1499 | ✗ | continue; | |
1500 | |||
1501 |
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|
25 | if (!(x % ((uint64_t)s->cdx[compno] << (rlevel->log2_prec_width + reducedresno)) == 0 || |
1502 | ✗ | (x == tile->coord[0][0] && ((int64_t)trx0 << reducedresno) % (1ULL << (reducedresno + rlevel->log2_prec_width))))) | |
1503 | ✗ | continue; | |
1504 | |||
1505 | // check if a precinct exists | ||
1506 | 25 | prcx = ff_jpeg2000_ceildiv(x, (int64_t)s->cdx[compno] << reducedresno) >> rlevel->log2_prec_width; | |
1507 | 25 | prcy = ff_jpeg2000_ceildiv(y, (int64_t)s->cdy[compno] << reducedresno) >> rlevel->log2_prec_height; | |
1508 | 25 | prcx -= ff_jpeg2000_ceildivpow2(comp->coord_o[0][0], reducedresno) >> rlevel->log2_prec_width; | |
1509 | 25 | prcy -= ff_jpeg2000_ceildivpow2(comp->coord_o[1][0], reducedresno) >> rlevel->log2_prec_height; | |
1510 | |||
1511 | 25 | precno = prcx + rlevel->num_precincts_x * prcy; | |
1512 | |||
1513 |
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|
25 | if (prcx >= rlevel->num_precincts_x || prcy >= rlevel->num_precincts_y) { |
1514 | ✗ | av_log(s->avctx, AV_LOG_WARNING, "prc %d %d outside limits %d %d\n", | |
1515 | prcx, prcy, rlevel->num_precincts_x, rlevel->num_precincts_y); | ||
1516 | ✗ | continue; | |
1517 | } | ||
1518 | |||
1519 |
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|
200 | for (layno = 0; layno < LYEpoc; layno++) { |
1520 |
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|
175 | if ((ret = jpeg2000_decode_packet(s, tile, tp_index, codsty, rlevel, |
1521 | precno, layno, | ||
1522 | 175 | qntsty->expn + (reslevelno ? 3 * (reslevelno - 1) + 1 : 0), | |
1523 |
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|
175 | qntsty->nguardbits)) < 0) |
1524 | ✗ | return ret; | |
1525 | } | ||
1526 | } | ||
1527 | } | ||
1528 | } | ||
1529 | } | ||
1530 | 1 | break; | |
1531 | |||
1532 | ✗ | default: | |
1533 | ✗ | break; | |
1534 | } | ||
1535 | |||
1536 | 2878 | return ret; | |
1537 | } | ||
1538 | |||
1539 | 2877 | static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile) | |
1540 | { | ||
1541 | 2877 | int ret = AVERROR_BUG; | |
1542 | int i; | ||
1543 | 2877 | int tp_index = 0; | |
1544 | |||
1545 | 2877 | s->bit_index = 8; | |
1546 |
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|
2877 | if (tile->poc.nb_poc) { |
1547 |
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|
19 | for (i=0; i<tile->poc.nb_poc; i++) { |
1548 | 10 | Jpeg2000POCEntry *e = &tile->poc.poc[i]; | |
1549 | 30 | ret = jpeg2000_decode_packets_po_iteration(s, tile, | |
1550 | 10 | e->RSpoc, e->CSpoc, | |
1551 | 10 | FFMIN(e->LYEpoc, tile->codsty[0].nlayers), | |
1552 | 10 | e->REpoc, | |
1553 | 10 | FFMIN(e->CEpoc, s->ncomponents), | |
1554 |
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|
10 | e->Ppoc, &tp_index |
1555 | ); | ||
1556 |
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|
10 | if (ret < 0) |
1557 | ✗ | return ret; | |
1558 | } | ||
1559 | } else { | ||
1560 | 2868 | ret = jpeg2000_decode_packets_po_iteration(s, tile, | |
1561 | 0, 0, | ||
1562 | 2868 | tile->codsty[0].nlayers, | |
1563 | 33, | ||
1564 | s->ncomponents, | ||
1565 | 2868 | tile->codsty[0].prog_order, | |
1566 | &tp_index | ||
1567 | ); | ||
1568 | } | ||
1569 | /* EOC marker reached */ | ||
1570 | 2877 | bytestream2_skip(&s->g, 2); | |
1571 | |||
1572 | 2877 | return ret; | |
1573 | } | ||
1574 | |||
1575 | /* TIER-1 routines */ | ||
1576 | 3878124 | static void decode_sigpass(Jpeg2000T1Context *t1, int width, int height, | |
1577 | int bpno, int bandno, | ||
1578 | int vert_causal_ctx_csty_symbol) | ||
1579 | { | ||
1580 | 3878124 | int mask = 3 << (bpno - 1), y0, x, y; | |
1581 | |||
1582 |
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|
17671757 | for (y0 = 0; y0 < height; y0 += 4) |
1583 |
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|
242914591 | for (x = 0; x < width; x++) |
1584 |
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|
1140895865 | for (y = y0; y < height && y < y0 + 4; y++) { |
1585 | 911774907 | int flags_mask = -1; | |
1586 |
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|
911774907 | if (vert_causal_ctx_csty_symbol && y == y0 + 3) |
1587 | ✗ | flags_mask &= ~(JPEG2000_T1_SIG_S | JPEG2000_T1_SIG_SW | JPEG2000_T1_SIG_SE | JPEG2000_T1_SGN_S); | |
1588 |
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|
911774907 | if ((t1->flags[(y+1) * t1->stride + x+1] & JPEG2000_T1_SIG_NB & flags_mask) |
1589 |
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|
554874401 | && !(t1->flags[(y+1) * t1->stride + x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS))) { |
1590 |
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|
246564267 | if (ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ff_jpeg2000_getsigctxno(t1->flags[(y+1) * t1->stride + x+1] & flags_mask, bandno))) { |
1591 | 77812673 | int xorbit, ctxno = ff_jpeg2000_getsgnctxno(t1->flags[(y+1) * t1->stride + x+1] & flags_mask, &xorbit); | |
1592 |
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|
77812673 | if (t1->mqc.raw) |
1593 | ✗ | t1->data[(y) * t1->stride + x] = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ctxno) ? -mask : mask; | |
1594 | else | ||
1595 | 155625346 | t1->data[(y) * t1->stride + x] = (ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ctxno) ^ xorbit) ? | |
1596 |
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77812673 | -mask : mask; |
1597 | |||
1598 | 77812673 | ff_jpeg2000_set_significance(t1, x, y, | |
1599 | 77812673 | t1->data[(y) * t1->stride + x] < 0); | |
1600 | } | ||
1601 | 246564267 | t1->flags[(y + 1) * t1->stride + x + 1] |= JPEG2000_T1_VIS; | |
1602 | } | ||
1603 | } | ||
1604 | 3878124 | } | |
1605 | |||
1606 | 3580941 | static void decode_refpass(Jpeg2000T1Context *t1, int width, int height, | |
1607 | int bpno, int vert_causal_ctx_csty_symbol) | ||
1608 | { | ||
1609 | int phalf, nhalf; | ||
1610 | int y0, x, y; | ||
1611 | |||
1612 | 3580941 | phalf = 1 << (bpno - 1); | |
1613 | 3580941 | nhalf = -phalf; | |
1614 | |||
1615 |
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16344202 | for (y0 = 0; y0 < height; y0 += 4) |
1616 |
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226276276 | for (x = 0; x < width; x++) |
1617 |
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1063291840 | for (y = y0; y < height && y < y0 + 4; y++) |
1618 |
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849778825 | if ((t1->flags[(y + 1) * t1->stride + x + 1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS)) == JPEG2000_T1_SIG) { |
1619 | ✗ | int flags_mask = (vert_causal_ctx_csty_symbol && y == y0 + 3) ? | |
1620 |
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273561064 | ~(JPEG2000_T1_SIG_S | JPEG2000_T1_SIG_SW | JPEG2000_T1_SIG_SE | JPEG2000_T1_SGN_S) : -1; |
1621 | 273561064 | int ctxno = ff_jpeg2000_getrefctxno(t1->flags[(y + 1) * t1->stride + x + 1] & flags_mask); | |
1622 | 547122128 | int r = ff_mqc_decode(&t1->mqc, | |
1623 | 273561064 | t1->mqc.cx_states + ctxno) | |
1624 |
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273561064 | ? phalf : nhalf; |
1625 |
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273561064 | t1->data[(y) * t1->stride + x] += t1->data[(y) * t1->stride + x] < 0 ? -r : r; |
1626 | 273561064 | t1->flags[(y + 1) * t1->stride + x + 1] |= JPEG2000_T1_REF; | |
1627 | } | ||
1628 | 3580941 | } | |
1629 | |||
1630 | 4295453 | static void decode_clnpass(const Jpeg2000DecoderContext *s, Jpeg2000T1Context *t1, | |
1631 | int width, int height, int bpno, int bandno, | ||
1632 | int seg_symbols, int vert_causal_ctx_csty_symbol) | ||
1633 | { | ||
1634 | 4295453 | int mask = 3 << (bpno - 1), y0, x, y, runlen, dec; | |
1635 | |||
1636 |
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19691906 | for (y0 = 0; y0 < height; y0 += 4) { |
1637 |
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272215800 | for (x = 0; x < width; x++) { |
1638 | 256819347 | int flags_mask = -1; | |
1639 |
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256819347 | if (vert_causal_ctx_csty_symbol) |
1640 | ✗ | flags_mask &= ~(JPEG2000_T1_SIG_S | JPEG2000_T1_SIG_SW | JPEG2000_T1_SIG_SE | JPEG2000_T1_SGN_S); | |
1641 |
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256819347 | if (y0 + 3 < height && |
1642 |
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|
254843641 | !((t1->flags[(y0 + 1) * t1->stride + x + 1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) || |
1643 |
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115297245 | (t1->flags[(y0 + 2) * t1->stride + x + 1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) || |
1644 |
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106962695 | (t1->flags[(y0 + 3) * t1->stride + x + 1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG)) || |
1645 |
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99726636 | (t1->flags[(y0 + 4) * t1->stride + x + 1] & (JPEG2000_T1_SIG_NB | JPEG2000_T1_VIS | JPEG2000_T1_SIG) & flags_mask))) { |
1646 |
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|
96289243 | if (!ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_RL)) |
1647 | 90019668 | continue; | |
1648 | 6269575 | runlen = ff_mqc_decode(&t1->mqc, | |
1649 | 6269575 | t1->mqc.cx_states + MQC_CX_UNI); | |
1650 | 12539150 | runlen = (runlen << 1) | ff_mqc_decode(&t1->mqc, | |
1651 | 6269575 | t1->mqc.cx_states + | |
1652 | MQC_CX_UNI); | ||
1653 | 6269575 | dec = 1; | |
1654 | } else { | ||
1655 | 160530104 | runlen = 0; | |
1656 | 160530104 | dec = 0; | |
1657 | } | ||
1658 | |||
1659 |
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|
819105275 | for (y = y0 + runlen; y < y0 + 4 && y < height; y++) { |
1660 | 652305596 | int flags_mask = -1; | |
1661 |
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|
652305596 | if (vert_causal_ctx_csty_symbol && y == y0 + 3) |
1662 | ✗ | flags_mask &= ~(JPEG2000_T1_SIG_S | JPEG2000_T1_SIG_SW | JPEG2000_T1_SIG_SE | JPEG2000_T1_SGN_S); | |
1663 |
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|
652305596 | if (!dec) { |
1664 |
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|
646036021 | if (!(t1->flags[(y+1) * t1->stride + x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS))) { |
1665 | 152280614 | dec = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ff_jpeg2000_getsigctxno(t1->flags[(y+1) * t1->stride + x+1] & flags_mask, | |
1666 | bandno)); | ||
1667 | } | ||
1668 | } | ||
1669 |
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|
652305596 | if (dec) { |
1670 | int xorbit; | ||
1671 | 23858387 | int ctxno = ff_jpeg2000_getsgnctxno(t1->flags[(y + 1) * t1->stride + x + 1] & flags_mask, | |
1672 | &xorbit); | ||
1673 | 47716774 | t1->data[(y) * t1->stride + x] = (ff_mqc_decode(&t1->mqc, | |
1674 | 23858387 | t1->mqc.cx_states + ctxno) ^ | |
1675 | xorbit) | ||
1676 |
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|
23858387 | ? -mask : mask; |
1677 | 23858387 | ff_jpeg2000_set_significance(t1, x, y, t1->data[(y) * t1->stride + x] < 0); | |
1678 | } | ||
1679 | 652305596 | dec = 0; | |
1680 | 652305596 | t1->flags[(y + 1) * t1->stride + x + 1] &= ~JPEG2000_T1_VIS; | |
1681 | } | ||
1682 | } | ||
1683 | } | ||
1684 |
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|
4295453 | if (seg_symbols) { |
1685 | int val; | ||
1686 | 104 | val = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI); | |
1687 | 104 | val = (val << 1) + ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI); | |
1688 | 104 | val = (val << 1) + ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI); | |
1689 | 104 | val = (val << 1) + ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI); | |
1690 |
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104 | if (val != 0xa) |
1691 | ✗ | av_log(s->avctx, AV_LOG_ERROR, | |
1692 | "Segmentation symbol value incorrect\n"); | ||
1693 | } | ||
1694 | 4295453 | } | |
1695 | |||
1696 | 919717 | static int decode_cblk(const Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *codsty, | |
1697 | Jpeg2000T1Context *t1, Jpeg2000Cblk *cblk, | ||
1698 | int width, int height, int bandpos, uint8_t roi_shift) | ||
1699 | { | ||
1700 | 919717 | int passno = cblk->npasses, pass_t = 2, bpno = cblk->nonzerobits - 1 + roi_shift; | |
1701 | 919717 | int pass_cnt = 0; | |
1702 | 919717 | int vert_causal_ctx_csty_symbol = codsty->cblk_style & JPEG2000_CBLK_VSC; | |
1703 | 919717 | int term_cnt = 0; | |
1704 | int coder_type; | ||
1705 | |||
1706 |
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919717 | av_assert0(width <= 1024U && height <= 1024U); |
1707 |
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919717 | av_assert0(width*height <= 4096); |
1708 | |||
1709 | 919717 | memset(t1->data, 0, t1->stride * height * sizeof(*t1->data)); | |
1710 | |||
1711 | /* If code-block contains no compressed data: nothing to do. */ | ||
1712 |
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919717 | if (!cblk->length) |
1713 | 108457 | return 0; | |
1714 | |||
1715 | 811260 | memset(t1->flags, 0, t1->stride * (height + 2) * sizeof(*t1->flags)); | |
1716 | |||
1717 | 811260 | cblk->data[cblk->length] = 0xff; | |
1718 | 811260 | cblk->data[cblk->length+1] = 0xff; | |
1719 | 811260 | ff_mqc_initdec(&t1->mqc, cblk->data, 0, 1); | |
1720 | |||
1721 |
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12565778 | while (passno--) { |
1722 |
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11754518 | if (bpno < 0 || bpno > 29) { |
1723 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "bpno became invalid\n"); | |
1724 | ✗ | return AVERROR_INVALIDDATA; | |
1725 | } | ||
1726 |
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11754518 | switch(pass_t) { |
1727 | 3878124 | case 0: | |
1728 | 3878124 | decode_sigpass(t1, width, height, bpno + 1, bandpos, | |
1729 | vert_causal_ctx_csty_symbol); | ||
1730 | 3878124 | break; | |
1731 | 3580941 | case 1: | |
1732 | 3580941 | decode_refpass(t1, width, height, bpno + 1, vert_causal_ctx_csty_symbol); | |
1733 | 3580941 | break; | |
1734 | 4295453 | case 2: | |
1735 | av_assert2(!t1->mqc.raw); | ||
1736 | 4295453 | decode_clnpass(s, t1, width, height, bpno + 1, bandpos, | |
1737 | 4295453 | codsty->cblk_style & JPEG2000_CBLK_SEGSYM, | |
1738 | vert_causal_ctx_csty_symbol); | ||
1739 | 4295453 | break; | |
1740 | } | ||
1741 |
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11754518 | if (codsty->cblk_style & JPEG2000_CBLK_RESET) // XXX no testcase for just this |
1742 | ✗ | ff_mqc_init_contexts(&t1->mqc); | |
1743 | |||
1744 |
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11754518 | if (passno && (coder_type = needs_termination(codsty->cblk_style, pass_cnt))) { |
1745 |
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3861 | if (term_cnt >= cblk->nb_terminations) { |
1746 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Missing needed termination \n"); | |
1747 | ✗ | return AVERROR_INVALIDDATA; | |
1748 | } | ||
1749 |
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3861 | if (FFABS(cblk->data + cblk->data_start[term_cnt + 1] - 2 - t1->mqc.bp) > 0) { |
1750 | ✗ | av_log(s->avctx, AV_LOG_WARNING, "Mid mismatch %"PTRDIFF_SPECIFIER" in pass %d of %d\n", | |
1751 | ✗ | cblk->data + cblk->data_start[term_cnt + 1] - 2 - t1->mqc.bp, | |
1752 | ✗ | pass_cnt, cblk->npasses); | |
1753 | } | ||
1754 | |||
1755 | 3861 | ff_mqc_initdec(&t1->mqc, cblk->data + cblk->data_start[++term_cnt], coder_type == 2, 0); | |
1756 | } | ||
1757 | |||
1758 | 11754518 | pass_t++; | |
1759 |
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|
11754518 | if (pass_t == 3) { |
1760 | 4295453 | bpno--; | |
1761 | 4295453 | pass_t = 0; | |
1762 | } | ||
1763 | 11754518 | pass_cnt ++; | |
1764 | } | ||
1765 | |||
1766 |
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811260 | if (cblk->data + cblk->length - 2 > t1->mqc.bp) { |
1767 | ✗ | av_log(s->avctx, AV_LOG_WARNING, "End mismatch %"PTRDIFF_SPECIFIER"\n", | |
1768 | ✗ | cblk->data + cblk->length - 2 - t1->mqc.bp); | |
1769 | } | ||
1770 | |||
1771 |
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811260 | if (cblk->data + cblk->length < t1->mqc.bp) { |
1772 | ✗ | av_log(s->avctx, AV_LOG_WARNING, "Synthetic End of Stream Marker Read.\n"); | |
1773 | } | ||
1774 | |||
1775 | 811260 | return 1; | |
1776 | } | ||
1777 | |||
1778 | 32768 | static inline int roi_shift_param(Jpeg2000Component *comp, | |
1779 | int quan_parameter) | ||
1780 | { | ||
1781 | uint8_t roi_shift; | ||
1782 | int val; | ||
1783 | 32768 | roi_shift = comp->roi_shift; | |
1784 | 32768 | val = (quan_parameter < 0)?-quan_parameter:quan_parameter; | |
1785 | |||
1786 |
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32768 | if (val > (1 << roi_shift)) |
1787 |
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|
2304 | return (quan_parameter < 0)?-(val >> roi_shift):(val >> roi_shift); |
1788 | 30464 | return quan_parameter; | |
1789 | } | ||
1790 | |||
1791 | /* TODO: Verify dequantization for lossless case | ||
1792 | * comp->data can be float or int | ||
1793 | * band->stepsize can be float or int | ||
1794 | * depending on the type of DWT transformation. | ||
1795 | * see ISO/IEC 15444-1:2002 A.6.1 */ | ||
1796 | |||
1797 | /* Float dequantization of a codeblock.*/ | ||
1798 | ✗ | static void dequantization_float(int x, int y, Jpeg2000Cblk *cblk, | |
1799 | Jpeg2000Component *comp, | ||
1800 | Jpeg2000T1Context *t1, Jpeg2000Band *band) | ||
1801 | { | ||
1802 | int i, j; | ||
1803 | ✗ | int w = cblk->coord[0][1] - cblk->coord[0][0]; | |
1804 | ✗ | for (j = 0; j < (cblk->coord[1][1] - cblk->coord[1][0]); ++j) { | |
1805 | ✗ | float *datap = &comp->f_data[(comp->coord[0][1] - comp->coord[0][0]) * (y + j) + x]; | |
1806 | ✗ | int *src = t1->data + j*t1->stride; | |
1807 | ✗ | for (i = 0; i < w; ++i) | |
1808 | ✗ | datap[i] = src[i] * band->f_stepsize; | |
1809 | } | ||
1810 | ✗ | } | |
1811 | |||
1812 | /* Integer dequantization of a codeblock.*/ | ||
1813 | 606247 | static void dequantization_int(int x, int y, Jpeg2000Cblk *cblk, | |
1814 | Jpeg2000Component *comp, | ||
1815 | Jpeg2000T1Context *t1, Jpeg2000Band *band) | ||
1816 | { | ||
1817 | int i, j; | ||
1818 | 606247 | int w = cblk->coord[0][1] - cblk->coord[0][0]; | |
1819 |
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9487564 | for (j = 0; j < (cblk->coord[1][1] - cblk->coord[1][0]); ++j) { |
1820 | 8881317 | int32_t *datap = &comp->i_data[(comp->coord[0][1] - comp->coord[0][0]) * (y + j) + x]; | |
1821 | 8881317 | int *src = t1->data + j*t1->stride; | |
1822 |
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8881317 | if (band->i_stepsize == 32768) { |
1823 |
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154525356 | for (i = 0; i < w; ++i) |
1824 | 145644039 | datap[i] = src[i] / 2; | |
1825 | } else { | ||
1826 | // This should be VERY uncommon | ||
1827 | ✗ | for (i = 0; i < w; ++i) | |
1828 | ✗ | datap[i] = (src[i] * (int64_t)band->i_stepsize) / 65536; | |
1829 | } | ||
1830 | } | ||
1831 | 606247 | } | |
1832 | |||
1833 | 205023 | static void dequantization_int_97(int x, int y, Jpeg2000Cblk *cblk, | |
1834 | Jpeg2000Component *comp, | ||
1835 | Jpeg2000T1Context *t1, Jpeg2000Band *band) | ||
1836 | { | ||
1837 | int i, j; | ||
1838 | 205023 | int w = cblk->coord[0][1] - cblk->coord[0][0]; | |
1839 |
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3284546 | for (j = 0; j < (cblk->coord[1][1] - cblk->coord[1][0]); ++j) { |
1840 | 3079523 | int32_t *datap = &comp->i_data[(comp->coord[0][1] - comp->coord[0][0]) * (y + j) + x]; | |
1841 | 3079523 | int *src = t1->data + j*t1->stride; | |
1842 |
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54899884 | for (i = 0; i < w; ++i) |
1843 | 51820361 | datap[i] = (src[i] * (int64_t)band->i_stepsize + (1<<15)) >> 16; | |
1844 | } | ||
1845 | 205023 | } | |
1846 | |||
1847 | 4 | static inline void mct_decode(const Jpeg2000DecoderContext *s, Jpeg2000Tile *tile) | |
1848 | { | ||
1849 | 4 | int i, csize = 1; | |
1850 | void *src[3]; | ||
1851 | |||
1852 |
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12 | for (i = 1; i < 3; i++) { |
1853 |
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8 | if (tile->codsty[0].transform != tile->codsty[i].transform) { |
1854 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Transforms mismatch, MCT not supported\n"); | |
1855 | ✗ | return; | |
1856 | } | ||
1857 |
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8 | if (memcmp(tile->comp[0].coord, tile->comp[i].coord, sizeof(tile->comp[0].coord))) { |
1858 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Coords mismatch, MCT not supported\n"); | |
1859 | ✗ | return; | |
1860 | } | ||
1861 | } | ||
1862 | |||
1863 |
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16 | for (i = 0; i < 3; i++) |
1864 |
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12 | if (tile->codsty[0].transform == FF_DWT97) |
1865 | ✗ | src[i] = tile->comp[i].f_data; | |
1866 | else | ||
1867 | 12 | src[i] = tile->comp[i].i_data; | |
1868 | |||
1869 |
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12 | for (i = 0; i < 2; i++) |
1870 | 8 | csize *= tile->comp[0].coord[i][1] - tile->comp[0].coord[i][0]; | |
1871 | |||
1872 | 4 | s->dsp.mct_decode[tile->codsty[0].transform](src[0], src[1], src[2], csize); | |
1873 | } | ||
1874 | |||
1875 | 8 | static inline void roi_scale_cblk(Jpeg2000Cblk *cblk, | |
1876 | Jpeg2000Component *comp, | ||
1877 | Jpeg2000T1Context *t1) | ||
1878 | { | ||
1879 | int i, j; | ||
1880 | 8 | int w = cblk->coord[0][1] - cblk->coord[0][0]; | |
1881 |
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520 | for (j = 0; j < (cblk->coord[1][1] - cblk->coord[1][0]); ++j) { |
1882 | 512 | int *src = t1->data + j*t1->stride; | |
1883 |
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33280 | for (i = 0; i < w; ++i) |
1884 | 32768 | src[i] = roi_shift_param(comp, src[i]); | |
1885 | } | ||
1886 | 8 | } | |
1887 | |||
1888 | 2877 | static inline void tile_codeblocks(const Jpeg2000DecoderContext *s, Jpeg2000Tile *tile) | |
1889 | { | ||
1890 | Jpeg2000T1Context t1; | ||
1891 | |||
1892 | int compno, reslevelno, bandno; | ||
1893 | |||
1894 | /* Loop on tile components */ | ||
1895 |
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12129 | for (compno = 0; compno < s->ncomponents; compno++) { |
1896 | 9252 | Jpeg2000Component *comp = tile->comp + compno; | |
1897 | 9252 | Jpeg2000CodingStyle *codsty = tile->codsty + compno; | |
1898 | 9252 | Jpeg2000QuantStyle *quantsty = tile->qntsty + compno; | |
1899 | |||
1900 | 9252 | int coded = 0; | |
1901 | 9252 | int subbandno = 0; | |
1902 | |||
1903 | 9252 | t1.stride = (1<<codsty->log2_cblk_width) + 2; | |
1904 | |||
1905 | /* Loop on resolution levels */ | ||
1906 |
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71638 | for (reslevelno = 0; reslevelno < codsty->nreslevels2decode; reslevelno++) { |
1907 | 62386 | Jpeg2000ResLevel *rlevel = comp->reslevel + reslevelno; | |
1908 | /* Loop on bands */ | ||
1909 |
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231040 | for (bandno = 0; bandno < rlevel->nbands; bandno++, subbandno++) { |
1910 | int nb_precincts, precno; | ||
1911 | 168654 | Jpeg2000Band *band = rlevel->band + bandno; | |
1912 | 168654 | int cblkno = 0, bandpos; | |
1913 | |||
1914 | 168654 | bandpos = bandno + (reslevelno > 0); | |
1915 | |||
1916 |
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168654 | if (band->coord[0][0] == band->coord[0][1] || |
1917 |
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168652 | band->coord[1][0] == band->coord[1][1]) |
1918 | 7802 | continue; | |
1919 | |||
1920 | 160852 | nb_precincts = rlevel->num_precincts_x * rlevel->num_precincts_y; | |
1921 | /* Loop on precincts */ | ||
1922 |
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322883 | for (precno = 0; precno < nb_precincts; precno++) { |
1923 | 162031 | Jpeg2000Prec *prec = band->prec + precno; | |
1924 | |||
1925 | /* Loop on codeblocks */ | ||
1926 | 162031 | for (cblkno = 0; | |
1927 |
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1081758 | cblkno < prec->nb_codeblocks_width * prec->nb_codeblocks_height; |
1928 | 919727 | cblkno++) { | |
1929 | int x, y, ret; | ||
1930 | /* See Rec. ITU-T T.800, Equation E-2 */ | ||
1931 | 919727 | int magp = quantsty->expn[subbandno] + quantsty->nguardbits - 1; | |
1932 | |||
1933 | 919727 | Jpeg2000Cblk *cblk = prec->cblk + cblkno; | |
1934 | |||
1935 |
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919727 | if (codsty->cblk_style & JPEG2000_CTSY_HTJ2K_F) |
1936 | 10 | ret = ff_jpeg2000_decode_htj2k(s, codsty, &t1, cblk, | |
1937 | 10 | cblk->coord[0][1] - cblk->coord[0][0], | |
1938 | 10 | cblk->coord[1][1] - cblk->coord[1][0], | |
1939 | 10 | magp, comp->roi_shift); | |
1940 | else | ||
1941 | 919717 | ret = decode_cblk(s, codsty, &t1, cblk, | |
1942 | 919717 | cblk->coord[0][1] - cblk->coord[0][0], | |
1943 | 919717 | cblk->coord[1][1] - cblk->coord[1][0], | |
1944 | 919717 | bandpos, comp->roi_shift); | |
1945 | |||
1946 |
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|
919727 | if (ret) |
1947 | 811270 | coded = 1; | |
1948 | else | ||
1949 | 108457 | continue; | |
1950 | 811270 | x = cblk->coord[0][0] - band->coord[0][0]; | |
1951 | 811270 | y = cblk->coord[1][0] - band->coord[1][0]; | |
1952 | |||
1953 |
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811270 | if (comp->roi_shift) |
1954 | 8 | roi_scale_cblk(cblk, comp, &t1); | |
1955 |
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811270 | if (codsty->transform == FF_DWT97) |
1956 | ✗ | dequantization_float(x, y, cblk, comp, &t1, band); | |
1957 |
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|
811270 | else if (codsty->transform == FF_DWT97_INT) |
1958 | 205023 | dequantization_int_97(x, y, cblk, comp, &t1, band); | |
1959 | else | ||
1960 | 606247 | dequantization_int(x, y, cblk, comp, &t1, band); | |
1961 | } /* end cblk */ | ||
1962 | } /*end prec */ | ||
1963 | } /* end band */ | ||
1964 | } /* end reslevel */ | ||
1965 | |||
1966 | /* inverse DWT */ | ||
1967 |
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9252 | if (coded) |
1968 |
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9252 | ff_dwt_decode(&comp->dwt, codsty->transform == FF_DWT97 ? (void*)comp->f_data : (void*)comp->i_data); |
1969 | |||
1970 | } /*end comp */ | ||
1971 | 2877 | } | |
1972 | |||
1973 | #define WRITE_FRAME(D, PIXEL) \ | ||
1974 | static inline void write_frame_ ## D(const Jpeg2000DecoderContext * s, Jpeg2000Tile * tile, \ | ||
1975 | AVFrame * picture, int precision) \ | ||
1976 | { \ | ||
1977 | const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(s->avctx->pix_fmt); \ | ||
1978 | int planar = !!(pixdesc->flags & AV_PIX_FMT_FLAG_PLANAR); \ | ||
1979 | int pixelsize = planar ? 1 : pixdesc->nb_components; \ | ||
1980 | \ | ||
1981 | int compno; \ | ||
1982 | int x, y; \ | ||
1983 | \ | ||
1984 | for (compno = 0; compno < s->ncomponents; compno++) { \ | ||
1985 | Jpeg2000Component *comp = tile->comp + compno; \ | ||
1986 | Jpeg2000CodingStyle *codsty = tile->codsty + compno; \ | ||
1987 | PIXEL *line; \ | ||
1988 | float *datap = comp->f_data; \ | ||
1989 | int32_t *i_datap = comp->i_data; \ | ||
1990 | int cbps = s->cbps[compno]; \ | ||
1991 | int w = tile->comp[compno].coord[0][1] - \ | ||
1992 | ff_jpeg2000_ceildiv(s->image_offset_x, s->cdx[compno]); \ | ||
1993 | int h = tile->comp[compno].coord[1][1] - \ | ||
1994 | ff_jpeg2000_ceildiv(s->image_offset_y, s->cdy[compno]); \ | ||
1995 | int plane = 0; \ | ||
1996 | \ | ||
1997 | if (planar) \ | ||
1998 | plane = s->cdef[compno] ? s->cdef[compno]-1 : (s->ncomponents-1); \ | ||
1999 | \ | ||
2000 | y = tile->comp[compno].coord[1][0] - \ | ||
2001 | ff_jpeg2000_ceildiv(s->image_offset_y, s->cdy[compno]); \ | ||
2002 | line = (PIXEL *)picture->data[plane] + y * (picture->linesize[plane] / sizeof(PIXEL));\ | ||
2003 | for (; y < h; y++) { \ | ||
2004 | PIXEL *dst; \ | ||
2005 | \ | ||
2006 | x = tile->comp[compno].coord[0][0] - \ | ||
2007 | ff_jpeg2000_ceildiv(s->image_offset_x, s->cdx[compno]); \ | ||
2008 | dst = line + x * pixelsize + compno*!planar; \ | ||
2009 | \ | ||
2010 | if (codsty->transform == FF_DWT97) { \ | ||
2011 | for (; x < w; x++) { \ | ||
2012 | int val = lrintf(*datap) + (1 << (cbps - 1)); \ | ||
2013 | /* DC level shift and clip see ISO 15444-1:2002 G.1.2 */ \ | ||
2014 | val = av_clip(val, 0, (1 << cbps) - 1); \ | ||
2015 | *dst = val << (precision - cbps); \ | ||
2016 | datap++; \ | ||
2017 | dst += pixelsize; \ | ||
2018 | } \ | ||
2019 | } else { \ | ||
2020 | for (; x < w; x++) { \ | ||
2021 | int val = *i_datap + (1 << (cbps - 1)); \ | ||
2022 | /* DC level shift and clip see ISO 15444-1:2002 G.1.2 */ \ | ||
2023 | val = av_clip(val, 0, (1 << cbps) - 1); \ | ||
2024 | *dst = val << (precision - cbps); \ | ||
2025 | i_datap++; \ | ||
2026 | dst += pixelsize; \ | ||
2027 | } \ | ||
2028 | } \ | ||
2029 | line += picture->linesize[plane] / sizeof(PIXEL); \ | ||
2030 | } \ | ||
2031 | } \ | ||
2032 | \ | ||
2033 | } | ||
2034 | |||
2035 |
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|
95864582 | WRITE_FRAME(8, uint8_t) |
2036 |
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|
133791146 | WRITE_FRAME(16, uint16_t) |
2037 | |||
2038 | #undef WRITE_FRAME | ||
2039 | |||
2040 | 2877 | static int jpeg2000_decode_tile(AVCodecContext *avctx, void *td, | |
2041 | int jobnr, int threadnr) | ||
2042 | { | ||
2043 | 2877 | const Jpeg2000DecoderContext *s = avctx->priv_data; | |
2044 | 2877 | AVFrame *picture = td; | |
2045 | 2877 | Jpeg2000Tile *tile = s->tile + jobnr; | |
2046 | |||
2047 | 2877 | tile_codeblocks(s, tile); | |
2048 | |||
2049 | /* inverse MCT transformation */ | ||
2050 |
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2877 | if (tile->codsty[0].mct) |
2051 | 4 | mct_decode(s, tile); | |
2052 | |||
2053 |
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2877 | if (s->precision <= 8) { |
2054 | 1318 | write_frame_8(s, tile, picture, 8); | |
2055 | } else { | ||
2056 | 4675 | int precision = picture->format == AV_PIX_FMT_XYZ12 || | |
2057 |
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1557 | picture->format == AV_PIX_FMT_RGB48 || |
2058 |
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650 | picture->format == AV_PIX_FMT_RGBA64 || |
2059 |
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3116 | picture->format == AV_PIX_FMT_GRAY16 ? 16 : s->precision; |
2060 | |||
2061 | 1559 | write_frame_16(s, tile, picture, precision); | |
2062 | } | ||
2063 | |||
2064 | 2877 | return 0; | |
2065 | } | ||
2066 | |||
2067 | 849 | static void jpeg2000_dec_cleanup(Jpeg2000DecoderContext *s) | |
2068 | { | ||
2069 | int tileno, compno; | ||
2070 |
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4057 | for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++) { |
2071 |
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3208 | if (s->tile[tileno].comp) { |
2072 |
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13439 | for (compno = 0; compno < s->ncomponents; compno++) { |
2073 | 10231 | Jpeg2000Component *comp = s->tile[tileno].comp + compno; | |
2074 | 10231 | Jpeg2000CodingStyle *codsty = s->tile[tileno].codsty + compno; | |
2075 | |||
2076 | 10231 | ff_jpeg2000_cleanup(comp, codsty); | |
2077 | } | ||
2078 | 3208 | av_freep(&s->tile[tileno].comp); | |
2079 | 3208 | av_freep(&s->tile[tileno].packed_headers); | |
2080 | 3208 | s->tile[tileno].packed_headers_size = 0; | |
2081 | } | ||
2082 | } | ||
2083 | 849 | av_freep(&s->packed_headers); | |
2084 | 849 | s->packed_headers_size = 0; | |
2085 | 849 | memset(&s->packed_headers_stream, 0, sizeof(s->packed_headers_stream)); | |
2086 | 849 | av_freep(&s->tile); | |
2087 | 849 | memset(s->codsty, 0, sizeof(s->codsty)); | |
2088 | 849 | memset(s->qntsty, 0, sizeof(s->qntsty)); | |
2089 | 849 | memset(s->properties, 0, sizeof(s->properties)); | |
2090 | 849 | memset(&s->poc , 0, sizeof(s->poc)); | |
2091 | 849 | s->numXtiles = s->numYtiles = 0; | |
2092 | 849 | s->ncomponents = 0; | |
2093 | 849 | } | |
2094 | |||
2095 | 849 | static int jpeg2000_read_main_headers(Jpeg2000DecoderContext *s) | |
2096 | { | ||
2097 | 849 | Jpeg2000CodingStyle *codsty = s->codsty; | |
2098 | 849 | Jpeg2000QuantStyle *qntsty = s->qntsty; | |
2099 | 849 | Jpeg2000POC *poc = &s->poc; | |
2100 | 849 | uint8_t *properties = s->properties; | |
2101 | |||
2102 | 9629 | for (;;) { | |
2103 | 10478 | int len, ret = 0; | |
2104 | uint16_t marker; | ||
2105 | int oldpos; | ||
2106 | |||
2107 |
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10478 | if (bytestream2_get_bytes_left(&s->g) < 2) { |
2108 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Missing EOC\n"); | |
2109 | ✗ | break; | |
2110 | } | ||
2111 | |||
2112 | 10478 | marker = bytestream2_get_be16u(&s->g); | |
2113 | 10478 | oldpos = bytestream2_tell(&s->g); | |
2114 |
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10478 | if (marker >= 0xFF30 && marker <= 0xFF3F) |
2115 | 2 | continue; | |
2116 |
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10476 | if (marker == JPEG2000_SOD) { |
2117 | Jpeg2000Tile *tile; | ||
2118 | Jpeg2000TilePart *tp; | ||
2119 | |||
2120 |
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3224 | if (!s->tile) { |
2121 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Missing SIZ\n"); | |
2122 | ✗ | return AVERROR_INVALIDDATA; | |
2123 | } | ||
2124 |
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3224 | if (s->curtileno < 0) { |
2125 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Missing SOT\n"); | |
2126 | ✗ | return AVERROR_INVALIDDATA; | |
2127 | } | ||
2128 | |||
2129 | 3224 | tile = s->tile + s->curtileno; | |
2130 | 3224 | tp = tile->tile_part + tile->tp_idx; | |
2131 |
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3224 | if (tp->tp_end < s->g.buffer) { |
2132 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Invalid tpend\n"); | |
2133 | ✗ | return AVERROR_INVALIDDATA; | |
2134 | } | ||
2135 | |||
2136 |
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3224 | if (s->has_ppm) { |
2137 | ✗ | uint32_t tp_header_size = bytestream2_get_be32(&s->packed_headers_stream); | |
2138 | ✗ | if (bytestream2_get_bytes_left(&s->packed_headers_stream) < tp_header_size) | |
2139 | ✗ | return AVERROR_INVALIDDATA; | |
2140 | ✗ | bytestream2_init(&tp->header_tpg, s->packed_headers_stream.buffer, tp_header_size); | |
2141 | ✗ | bytestream2_skip(&s->packed_headers_stream, tp_header_size); | |
2142 | } | ||
2143 |
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3224 | if (tile->has_ppt && tile->tp_idx == 0) { |
2144 | ✗ | bytestream2_init(&tile->packed_headers_stream, tile->packed_headers, tile->packed_headers_size); | |
2145 | } | ||
2146 | |||
2147 | 3224 | bytestream2_init(&tp->tpg, s->g.buffer, tp->tp_end - s->g.buffer); | |
2148 | 3224 | bytestream2_skip(&s->g, tp->tp_end - s->g.buffer); | |
2149 | |||
2150 | 3224 | continue; | |
2151 | } | ||
2152 |
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7252 | if (marker == JPEG2000_EOC) |
2153 | 849 | break; | |
2154 | |||
2155 | 6403 | len = bytestream2_get_be16(&s->g); | |
2156 |
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6403 | if (len < 2 || bytestream2_get_bytes_left(&s->g) < len - 2) { |
2157 | ✗ | if (s->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT) { | |
2158 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Invalid len %d left=%d\n", len, bytestream2_get_bytes_left(&s->g)); | |
2159 | ✗ | return AVERROR_INVALIDDATA; | |
2160 | } | ||
2161 | ✗ | av_log(s->avctx, AV_LOG_WARNING, "Missing EOC Marker.\n"); | |
2162 | ✗ | break; | |
2163 | } | ||
2164 | |||
2165 |
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6403 | switch (marker) { |
2166 | 849 | case JPEG2000_SIZ: | |
2167 |
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849 | if (s->ncomponents) { |
2168 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "Duplicate SIZ\n"); | |
2169 | ✗ | return AVERROR_INVALIDDATA; | |
2170 | } | ||
2171 | 849 | ret = get_siz(s); | |
2172 |
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849 | if (!s->tile) |
2173 | ✗ | s->numXtiles = s->numYtiles = 0; | |
2174 | 849 | break; | |
2175 | 18 | case JPEG2000_COC: | |
2176 | 18 | ret = get_coc(s, codsty, properties); | |
2177 | 18 | break; | |
2178 | 849 | case JPEG2000_COD: | |
2179 | 849 | ret = get_cod(s, codsty, properties); | |
2180 | 849 | break; | |
2181 | 4 | case JPEG2000_RGN: | |
2182 | 4 | ret = get_rgn(s, len); | |
2183 | 4 | break; | |
2184 | 25 | case JPEG2000_QCC: | |
2185 | 25 | ret = get_qcc(s, len, qntsty, properties); | |
2186 | 25 | break; | |
2187 | 849 | case JPEG2000_QCD: | |
2188 | 849 | ret = get_qcd(s, len, qntsty, properties); | |
2189 | 849 | break; | |
2190 | 8 | case JPEG2000_POC: | |
2191 | 8 | ret = get_poc(s, len, poc); | |
2192 | 8 | break; | |
2193 | 3224 | case JPEG2000_SOT: | |
2194 |
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3224 | if (!s->in_tile_headers) { |
2195 | 64 | s->in_tile_headers = 1; | |
2196 |
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64 | if (s->has_ppm) { |
2197 | ✗ | bytestream2_init(&s->packed_headers_stream, s->packed_headers, s->packed_headers_size); | |
2198 | } | ||
2199 | } | ||
2200 |
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3224 | if (!(ret = get_sot(s, len))) { |
2201 | av_assert1(s->curtileno >= 0); | ||
2202 | 3224 | codsty = s->tile[s->curtileno].codsty; | |
2203 | 3224 | qntsty = s->tile[s->curtileno].qntsty; | |
2204 | 3224 | poc = &s->tile[s->curtileno].poc; | |
2205 | 3224 | properties = s->tile[s->curtileno].properties; | |
2206 | } | ||
2207 | 3224 | break; | |
2208 | 44 | case JPEG2000_PLM: | |
2209 | // the PLM marker is ignored | ||
2210 | case JPEG2000_COM: | ||
2211 | // the comment is ignored | ||
2212 | 44 | bytestream2_skip(&s->g, len - 2); | |
2213 | 44 | break; | |
2214 | 4 | case JPEG2000_CRG: | |
2215 | 4 | ret = read_crg(s, len); | |
2216 | 4 | break; | |
2217 | 11 | case JPEG2000_TLM: | |
2218 | // Tile-part lengths | ||
2219 | 11 | ret = get_tlm(s, len); | |
2220 | 11 | break; | |
2221 | 514 | case JPEG2000_PLT: | |
2222 | // Packet length, tile-part header | ||
2223 | 514 | ret = get_plt(s, len); | |
2224 | 514 | break; | |
2225 | ✗ | case JPEG2000_PPM: | |
2226 | // Packed headers, main header | ||
2227 | ✗ | if (s->in_tile_headers) { | |
2228 | ✗ | av_log(s->avctx, AV_LOG_ERROR, "PPM Marker can only be in Main header\n"); | |
2229 | ✗ | return AVERROR_INVALIDDATA; | |
2230 | } | ||
2231 | ✗ | ret = get_ppm(s, len); | |
2232 | ✗ | break; | |
2233 | ✗ | case JPEG2000_PPT: | |
2234 | // Packed headers, tile-part header | ||
2235 | ✗ | if (s->has_ppm) { | |
2236 | ✗ | av_log(s->avctx, AV_LOG_ERROR, | |
2237 | "Cannot have both PPT and PPM marker.\n"); | ||
2238 | ✗ | return AVERROR_INVALIDDATA; | |
2239 | } | ||
2240 | |||
2241 | ✗ | ret = get_ppt(s, len); | |
2242 | ✗ | break; | |
2243 | 4 | default: | |
2244 | 4 | av_log(s->avctx, AV_LOG_ERROR, | |
2245 | "unsupported marker 0x%.4"PRIX16" at pos 0x%X\n", | ||
2246 | 4 | marker, bytestream2_tell(&s->g) - 4); | |
2247 | 4 | bytestream2_skip(&s->g, len - 2); | |
2248 | 4 | break; | |
2249 | } | ||
2250 |
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|
6403 | if (bytestream2_tell(&s->g) - oldpos != len || ret) { |
2251 | ✗ | av_log(s->avctx, AV_LOG_ERROR, | |
2252 | "error during processing marker segment %.4"PRIx16"\n", | ||
2253 | marker); | ||
2254 | ✗ | return ret ? ret : -1; | |
2255 | } | ||
2256 | } | ||
2257 | 849 | return 0; | |
2258 | } | ||
2259 | |||
2260 | /* Read bit stream packets --> T2 operation. */ | ||
2261 | 816 | static int jpeg2000_read_bitstream_packets(Jpeg2000DecoderContext *s) | |
2262 | { | ||
2263 | 816 | int ret = 0; | |
2264 | int tileno; | ||
2265 | |||
2266 |
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|
3693 | for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++) { |
2267 | 2877 | Jpeg2000Tile *tile = s->tile + tileno; | |
2268 | |||
2269 |
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|
2877 | if ((ret = init_tile(s, tileno)) < 0) |
2270 | ✗ | return ret; | |
2271 | |||
2272 |
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|
2877 | if ((ret = jpeg2000_decode_packets(s, tile)) < 0) |
2273 | ✗ | return ret; | |
2274 | } | ||
2275 | |||
2276 | 816 | return 0; | |
2277 | } | ||
2278 | |||
2279 | 817 | static int jp2_find_codestream(Jpeg2000DecoderContext *s) | |
2280 | { | ||
2281 | uint32_t atom_size, atom, atom_end; | ||
2282 | 817 | int search_range = 10; | |
2283 | |||
2284 | 817 | while (search_range | |
2285 |
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|
4904 | && |
2286 | 2452 | bytestream2_get_bytes_left(&s->g) >= 8) { | |
2287 | 2452 | atom_size = bytestream2_get_be32u(&s->g); | |
2288 | 2452 | atom = bytestream2_get_be32u(&s->g); | |
2289 |
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|
2452 | if (atom_size == 1) { |
2290 | ✗ | if (bytestream2_get_be32u(&s->g)) { | |
2291 | ✗ | avpriv_request_sample(s->avctx, "Huge atom"); | |
2292 | ✗ | return 0; | |
2293 | } | ||
2294 | ✗ | atom_size = bytestream2_get_be32u(&s->g); | |
2295 | ✗ | if (atom_size < 16 || (int64_t)bytestream2_tell(&s->g) + atom_size - 16 > INT_MAX) | |
2296 | ✗ | return AVERROR_INVALIDDATA; | |
2297 | ✗ | atom_end = bytestream2_tell(&s->g) + atom_size - 16; | |
2298 | } else { | ||
2299 |
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|
2452 | if (atom_size < 8 || (int64_t)bytestream2_tell(&s->g) + atom_size - 8 > INT_MAX) |
2300 | 1 | return AVERROR_INVALIDDATA; | |
2301 | 2451 | atom_end = bytestream2_tell(&s->g) + atom_size - 8; | |
2302 | } | ||
2303 | |||
2304 |
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|
2451 | if (atom == JP2_CODESTREAM) |
2305 | 816 | return 1; | |
2306 | |||
2307 |
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|
1635 | if (bytestream2_get_bytes_left(&s->g) < atom_size || atom_end < atom_size) |
2308 | ✗ | return 0; | |
2309 | |||
2310 |
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|
1635 | if (atom == JP2_HEADER && |
2311 | 817 | atom_size >= 16) { | |
2312 | uint32_t atom2_size, atom2, atom2_end; | ||
2313 | do { | ||
2314 |
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|
1634 | if (bytestream2_get_bytes_left(&s->g) < 8) |
2315 | ✗ | break; | |
2316 | 1634 | atom2_size = bytestream2_get_be32u(&s->g); | |
2317 | 1634 | atom2 = bytestream2_get_be32u(&s->g); | |
2318 | 1634 | atom2_end = bytestream2_tell(&s->g) + atom2_size - 8; | |
2319 |
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|
1634 | if (atom2_size < 8 || atom2_end > atom_end || atom2_end < atom2_size) |
2320 | break; | ||
2321 | 1634 | atom2_size -= 8; | |
2322 |
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|
1634 | if (atom2 == JP2_CODESTREAM) { |
2323 | ✗ | return 1; | |
2324 |
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|
2451 | } else if (atom2 == MKBETAG('c','o','l','r') && atom2_size >= 7) { |
2325 | 817 | int method = bytestream2_get_byteu(&s->g); | |
2326 | 817 | bytestream2_skipu(&s->g, 2); | |
2327 |
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|
817 | if (method == 1) { |
2328 | 817 | s->colour_space = bytestream2_get_be32u(&s->g); | |
2329 | } | ||
2330 |
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|
817 | } else if (atom2 == MKBETAG('p','c','l','r') && atom2_size >= 6) { |
2331 | int i, size, colour_count, colour_channels, colour_depth[3]; | ||
2332 | ✗ | colour_count = bytestream2_get_be16u(&s->g); | |
2333 | ✗ | colour_channels = bytestream2_get_byteu(&s->g); | |
2334 | // FIXME: Do not ignore channel_sign | ||
2335 | ✗ | colour_depth[0] = (bytestream2_get_byteu(&s->g) & 0x7f) + 1; | |
2336 | ✗ | colour_depth[1] = (bytestream2_get_byteu(&s->g) & 0x7f) + 1; | |
2337 | ✗ | colour_depth[2] = (bytestream2_get_byteu(&s->g) & 0x7f) + 1; | |
2338 | ✗ | size = (colour_depth[0] + 7 >> 3) * colour_count + | |
2339 | ✗ | (colour_depth[1] + 7 >> 3) * colour_count + | |
2340 | ✗ | (colour_depth[2] + 7 >> 3) * colour_count; | |
2341 | ✗ | if (colour_count > AVPALETTE_COUNT || | |
2342 | ✗ | colour_channels != 3 || | |
2343 | ✗ | colour_depth[0] > 16 || | |
2344 | ✗ | colour_depth[1] > 16 || | |
2345 | ✗ | colour_depth[2] > 16 || | |
2346 | ✗ | atom2_size < size) { | |
2347 | ✗ | avpriv_request_sample(s->avctx, "Unknown palette"); | |
2348 | ✗ | bytestream2_seek(&s->g, atom2_end, SEEK_SET); | |
2349 | ✗ | continue; | |
2350 | } | ||
2351 | ✗ | s->pal8 = 1; | |
2352 | ✗ | for (i = 0; i < colour_count; i++) { | |
2353 | uint32_t r, g, b; | ||
2354 | ✗ | if (colour_depth[0] <= 8) { | |
2355 | ✗ | r = bytestream2_get_byteu(&s->g) << 8 - colour_depth[0]; | |
2356 | ✗ | r |= r >> colour_depth[0]; | |
2357 | } else { | ||
2358 | ✗ | r = bytestream2_get_be16u(&s->g) >> colour_depth[0] - 8; | |
2359 | } | ||
2360 | ✗ | if (colour_depth[1] <= 8) { | |
2361 | ✗ | g = bytestream2_get_byteu(&s->g) << 8 - colour_depth[1]; | |
2362 | ✗ | g |= g >> colour_depth[1]; | |
2363 | } else { | ||
2364 | ✗ | g = bytestream2_get_be16u(&s->g) >> colour_depth[1] - 8; | |
2365 | } | ||
2366 | ✗ | if (colour_depth[2] <= 8) { | |
2367 | ✗ | b = bytestream2_get_byteu(&s->g) << 8 - colour_depth[2]; | |
2368 | ✗ | b |= b >> colour_depth[2]; | |
2369 | } else { | ||
2370 | ✗ | b = bytestream2_get_be16u(&s->g) >> colour_depth[2] - 8; | |
2371 | } | ||
2372 | ✗ | s->palette[i] = 0xffu << 24 | r << 16 | g << 8 | b; | |
2373 | } | ||
2374 |
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817 | } else if (atom2 == MKBETAG('c','d','e','f') && atom2_size >= 2) { |
2375 | ✗ | int n = bytestream2_get_be16u(&s->g); | |
2376 | ✗ | for (; n>0; n--) { | |
2377 | ✗ | int cn = bytestream2_get_be16(&s->g); | |
2378 | ✗ | int av_unused typ = bytestream2_get_be16(&s->g); | |
2379 | ✗ | int asoc = bytestream2_get_be16(&s->g); | |
2380 | ✗ | if (cn < 4 && asoc < 4) | |
2381 | ✗ | s->cdef[cn] = asoc; | |
2382 | } | ||
2383 |
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817 | } else if (atom2 == MKBETAG('r','e','s',' ') && atom2_size >= 18) { |
2384 | int64_t vnum, vden, hnum, hden, vexp, hexp; | ||
2385 | uint32_t resx; | ||
2386 | ✗ | bytestream2_skip(&s->g, 4); | |
2387 | ✗ | resx = bytestream2_get_be32u(&s->g); | |
2388 | ✗ | if (resx != MKBETAG('r','e','s','c') && resx != MKBETAG('r','e','s','d')) { | |
2389 | ✗ | bytestream2_seek(&s->g, atom2_end, SEEK_SET); | |
2390 | ✗ | continue; | |
2391 | } | ||
2392 | ✗ | vnum = bytestream2_get_be16u(&s->g); | |
2393 | ✗ | vden = bytestream2_get_be16u(&s->g); | |
2394 | ✗ | hnum = bytestream2_get_be16u(&s->g); | |
2395 | ✗ | hden = bytestream2_get_be16u(&s->g); | |
2396 | ✗ | vexp = bytestream2_get_byteu(&s->g); | |
2397 | ✗ | hexp = bytestream2_get_byteu(&s->g); | |
2398 | ✗ | if (!vnum || !vden || !hnum || !hden) { | |
2399 | ✗ | bytestream2_seek(&s->g, atom2_end, SEEK_SET); | |
2400 | ✗ | av_log(s->avctx, AV_LOG_WARNING, "RES box invalid\n"); | |
2401 | ✗ | continue; | |
2402 | } | ||
2403 | ✗ | if (vexp > hexp) { | |
2404 | ✗ | vexp -= hexp; | |
2405 | ✗ | hexp = 0; | |
2406 | } else { | ||
2407 | ✗ | hexp -= vexp; | |
2408 | ✗ | vexp = 0; | |
2409 | } | ||
2410 | ✗ | if ( INT64_MAX / (hnum * vden) > pow(10, hexp) | |
2411 | ✗ | && INT64_MAX / (vnum * hden) > pow(10, vexp)) | |
2412 | ✗ | av_reduce(&s->sar.den, &s->sar.num, | |
2413 | ✗ | hnum * vden * pow(10, hexp), | |
2414 | ✗ | vnum * hden * pow(10, vexp), | |
2415 | INT32_MAX); | ||
2416 | } | ||
2417 | 1634 | bytestream2_seek(&s->g, atom2_end, SEEK_SET); | |
2418 |
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|
1634 | } while (atom_end - atom2_end >= 8); |
2419 | } else { | ||
2420 | 818 | search_range--; | |
2421 | } | ||
2422 | 1635 | bytestream2_seek(&s->g, atom_end, SEEK_SET); | |
2423 | } | ||
2424 | |||
2425 | ✗ | return 0; | |
2426 | } | ||
2427 | |||
2428 | 65 | static av_cold int jpeg2000_decode_init(AVCodecContext *avctx) | |
2429 | { | ||
2430 | 65 | Jpeg2000DecoderContext *s = avctx->priv_data; | |
2431 | |||
2432 |
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|
65 | if (avctx->lowres) |
2433 | ✗ | av_log(avctx, AV_LOG_WARNING, "lowres is overriden by reduction_factor but set anyway\n"); | |
2434 |
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|
65 | if (!s->reduction_factor && avctx->lowres < JPEG2000_MAX_RESLEVELS) { |
2435 | 64 | s->reduction_factor = avctx->lowres; | |
2436 | } | ||
2437 |
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|
65 | if (avctx->lowres != s->reduction_factor && avctx->lowres) |
2438 | ✗ | return AVERROR(EINVAL); | |
2439 | |||
2440 | 65 | ff_jpeg2000dsp_init(&s->dsp); | |
2441 | 65 | ff_jpeg2000_init_tier1_luts(); | |
2442 | |||
2443 | 65 | return 0; | |
2444 | } | ||
2445 | |||
2446 | 849 | static int jpeg2000_decode_frame(AVCodecContext *avctx, AVFrame *picture, | |
2447 | int *got_frame, AVPacket *avpkt) | ||
2448 | { | ||
2449 | 849 | Jpeg2000DecoderContext *s = avctx->priv_data; | |
2450 | int ret; | ||
2451 | |||
2452 | 849 | s->avctx = avctx; | |
2453 | 849 | bytestream2_init(&s->g, avpkt->data, avpkt->size); | |
2454 | 849 | s->curtileno = -1; | |
2455 | 849 | memset(s->cdef, -1, sizeof(s->cdef)); | |
2456 | |||
2457 |
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|
849 | if (bytestream2_get_bytes_left(&s->g) < 2) { |
2458 | ✗ | ret = AVERROR_INVALIDDATA; | |
2459 | ✗ | goto end; | |
2460 | } | ||
2461 | |||
2462 | // check if the image is in jp2 format | ||
2463 |
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|
1698 | if (bytestream2_get_bytes_left(&s->g) >= 12 && |
2464 |
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|
1666 | (bytestream2_get_be32u(&s->g) == 12) && |
2465 |
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|
1634 | (bytestream2_get_be32u(&s->g) == JP2_SIG_TYPE) && |
2466 | 817 | (bytestream2_get_be32u(&s->g) == JP2_SIG_VALUE)) { | |
2467 |
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|
817 | if (!jp2_find_codestream(s)) { |
2468 | ✗ | av_log(avctx, AV_LOG_ERROR, | |
2469 | "Could not find Jpeg2000 codestream atom.\n"); | ||
2470 | ✗ | ret = AVERROR_INVALIDDATA; | |
2471 | ✗ | goto end; | |
2472 | } | ||
2473 | } else { | ||
2474 | 32 | bytestream2_seek(&s->g, 0, SEEK_SET); | |
2475 | } | ||
2476 | |||
2477 |
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|
849 | while (bytestream2_get_bytes_left(&s->g) >= 3 && bytestream2_peek_be16(&s->g) != JPEG2000_SOC) |
2478 | ✗ | bytestream2_skip(&s->g, 1); | |
2479 | |||
2480 |
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|
849 | if (bytestream2_get_be16u(&s->g) != JPEG2000_SOC) { |
2481 | ✗ | av_log(avctx, AV_LOG_ERROR, "SOC marker not present\n"); | |
2482 | ✗ | ret = AVERROR_INVALIDDATA; | |
2483 | ✗ | goto end; | |
2484 | } | ||
2485 |
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|
849 | if (ret = jpeg2000_read_main_headers(s)) |
2486 | ✗ | goto end; | |
2487 | |||
2488 |
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|
849 | if (s->sar.num && s->sar.den) |
2489 | ✗ | avctx->sample_aspect_ratio = s->sar; | |
2490 | 849 | s->sar.num = s->sar.den = 0; | |
2491 | |||
2492 |
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|
849 | if (avctx->skip_frame >= AVDISCARD_ALL) { |
2493 | 33 | jpeg2000_dec_cleanup(s); | |
2494 | 33 | return avpkt->size; | |
2495 | } | ||
2496 | |||
2497 | /* get picture buffer */ | ||
2498 |
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|
816 | if ((ret = ff_thread_get_buffer(avctx, picture, 0)) < 0) |
2499 | ✗ | goto end; | |
2500 | 816 | picture->pict_type = AV_PICTURE_TYPE_I; | |
2501 | 816 | picture->flags |= AV_FRAME_FLAG_KEY; | |
2502 | |||
2503 |
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|
816 | if (ret = jpeg2000_read_bitstream_packets(s)) |
2504 | ✗ | goto end; | |
2505 | |||
2506 |
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|
820 | for (int x = 0; x < s->ncomponents; x++) { |
2507 |
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|
819 | if (s->cdef[x] < 0) { |
2508 |
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|
3442 | for (x = 0; x < s->ncomponents; x++) { |
2509 | 2627 | s->cdef[x] = x + 1; | |
2510 | } | ||
2511 |
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|
815 | if ((s->ncomponents & 1) == 0) |
2512 | 200 | s->cdef[s->ncomponents-1] = 0; | |
2513 | 815 | break; | |
2514 | } | ||
2515 | } | ||
2516 | |||
2517 | 816 | avctx->execute2(avctx, jpeg2000_decode_tile, picture, NULL, s->numXtiles * s->numYtiles); | |
2518 | |||
2519 | 816 | jpeg2000_dec_cleanup(s); | |
2520 | |||
2521 | 816 | *got_frame = 1; | |
2522 | |||
2523 |
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|
816 | if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) |
2524 | ✗ | memcpy(picture->data[1], s->palette, 256 * sizeof(uint32_t)); | |
2525 | |||
2526 | 816 | return bytestream2_tell(&s->g); | |
2527 | |||
2528 | ✗ | end: | |
2529 | ✗ | jpeg2000_dec_cleanup(s); | |
2530 | ✗ | return ret; | |
2531 | } | ||
2532 | |||
2533 | #define OFFSET(x) offsetof(Jpeg2000DecoderContext, x) | ||
2534 | #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM | ||
2535 | |||
2536 | static const AVOption options[] = { | ||
2537 | { "lowres", "Lower the decoding resolution by a power of two", | ||
2538 | OFFSET(reduction_factor), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, JPEG2000_MAX_RESLEVELS - 1, VD }, | ||
2539 | { NULL }, | ||
2540 | }; | ||
2541 | |||
2542 | static const AVClass jpeg2000_class = { | ||
2543 | .class_name = "jpeg2000", | ||
2544 | .item_name = av_default_item_name, | ||
2545 | .option = options, | ||
2546 | .version = LIBAVUTIL_VERSION_INT, | ||
2547 | }; | ||
2548 | |||
2549 | const FFCodec ff_jpeg2000_decoder = { | ||
2550 | .p.name = "jpeg2000", | ||
2551 | CODEC_LONG_NAME("JPEG 2000"), | ||
2552 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
2553 | .p.id = AV_CODEC_ID_JPEG2000, | ||
2554 | .p.capabilities = AV_CODEC_CAP_SLICE_THREADS | AV_CODEC_CAP_FRAME_THREADS | AV_CODEC_CAP_DR1, | ||
2555 | .priv_data_size = sizeof(Jpeg2000DecoderContext), | ||
2556 | .init = jpeg2000_decode_init, | ||
2557 | FF_CODEC_DECODE_CB(jpeg2000_decode_frame), | ||
2558 | .p.priv_class = &jpeg2000_class, | ||
2559 | .p.max_lowres = 5, | ||
2560 | .p.profiles = NULL_IF_CONFIG_SMALL(ff_jpeg2000_profiles), | ||
2561 | .caps_internal = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM, | ||
2562 | }; | ||
2563 |