FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/tiff.c
Date: 2025-04-25 22:50:00
Exec Total Coverage
Lines: 463 1541 30.0%
Functions: 14 31 45.2%
Branches: 300 1291 23.2%
Line Branch Exec Source
1 /*
2 * Copyright (c) 2006 Konstantin Shishkov
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 /**
22 * @file
23 * TIFF image decoder
24 * @author Konstantin Shishkov
25 */
26
27 #include "config.h"
28 #if CONFIG_ZLIB
29 #include <zlib.h>
30 #endif
31 #if CONFIG_LZMA
32 #define LZMA_API_STATIC
33 #include <lzma.h>
34 #endif
35
36 #include <float.h>
37
38 #include "libavutil/attributes.h"
39 #include "libavutil/attributes_internal.h"
40 #include "libavutil/avstring.h"
41 #include "libavutil/error.h"
42 #include "libavutil/intreadwrite.h"
43 #include "libavutil/mem.h"
44 #include "libavutil/opt.h"
45 #include "libavutil/reverse.h"
46 #include "avcodec.h"
47 #include "bytestream.h"
48 #include "codec_internal.h"
49 #include "decode.h"
50 #include "faxcompr.h"
51 #include "lzw.h"
52 #include "tiff.h"
53 #include "tiff_common.h"
54 #include "tiff_data.h"
55 #include "mjpegdec.h"
56 #include "thread.h"
57 #include "get_bits.h"
58
59 typedef struct TiffContext {
60 AVClass *class;
61 AVCodecContext *avctx;
62 GetByteContext gb;
63
64 /* JPEG decoding for DNG */
65 AVCodecContext *avctx_mjpeg; // wrapper context for MJPEG
66 AVPacket *jpkt; // encoded JPEG tile
67 AVFrame *jpgframe; // decoded JPEG tile
68
69 int get_subimage;
70 uint16_t get_page;
71 int get_thumbnail;
72
73 enum TiffType tiff_type;
74 int width, height;
75 unsigned int bpp, bppcount;
76 uint32_t palette[256];
77 int palette_is_set;
78 int le;
79 enum TiffCompr compr;
80 enum TiffPhotometric photometric;
81 int planar;
82 int subsampling[2];
83 int fax_opts;
84 int predictor;
85 int fill_order;
86 uint32_t res[4];
87 int is_thumbnail;
88 unsigned last_tag;
89
90 int is_bayer;
91 int use_color_matrix;
92 uint8_t pattern[4];
93
94 float analog_balance[4];
95 float as_shot_neutral[4];
96 float as_shot_white[4];
97 float color_matrix[3][4];
98 float camera_calibration[4][4];
99 float premultiply[4];
100 float black_level[4];
101
102 unsigned white_level;
103 uint16_t dng_lut[65536];
104
105 uint32_t sub_ifd;
106 uint16_t cur_page;
107
108 int strips, rps, sstype;
109 int sot;
110 int stripsizesoff, stripsize, stripoff, strippos;
111 LZWState *lzw;
112
113 /* Tile support */
114 int is_tiled;
115 int tile_byte_counts_offset, tile_offsets_offset;
116 int tile_width, tile_length;
117
118 int is_jpeg;
119
120 uint8_t *deinvert_buf;
121 int deinvert_buf_size;
122 uint8_t *yuv_line;
123 unsigned int yuv_line_size;
124
125 int geotag_count;
126 TiffGeoTag *geotags;
127 } TiffContext;
128
129 static const float d65_white[3] = { 0.950456f, 1.f, 1.088754f };
130
131 ✗ static void tiff_set_type(TiffContext *s, enum TiffType tiff_type) {
132 ✗ if (s->tiff_type < tiff_type) // Prioritize higher-valued entries
133 ✗ s->tiff_type = tiff_type;
134 ✗ }
135
136 54 static void free_geotags(TiffContext *const s)
137 {
138
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 54 for (int i = 0; i < s->geotag_count; i++)
139 ✗ av_freep(&s->geotags[i].val);
140 54 av_freep(&s->geotags);
141 54 s->geotag_count = 0;
142 54 }
143
144 ✗ static const char *get_geokey_name(int key)
145 {
146 #define RET_GEOKEY_STR(TYPE, array)\
147 if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
148 key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(tiff_##array##_name_type_map))\
149 return tiff_##array##_name_type_string + tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].offset;
150
151 ✗ RET_GEOKEY_STR(VERT, vert);
152 ✗ RET_GEOKEY_STR(PROJ, proj);
153 ✗ RET_GEOKEY_STR(GEOG, geog);
154 ✗ RET_GEOKEY_STR(CONF, conf);
155
156 ✗ return NULL;
157 }
158
159 ✗ static int get_geokey_type(int key)
160 {
161 #define RET_GEOKEY_TYPE(TYPE, array)\
162 if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
163 key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(tiff_##array##_name_type_map))\
164 return tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].type;
165 ✗ RET_GEOKEY_TYPE(VERT, vert);
166 ✗ RET_GEOKEY_TYPE(PROJ, proj);
167 ✗ RET_GEOKEY_TYPE(GEOG, geog);
168 ✗ RET_GEOKEY_TYPE(CONF, conf);
169
170 ✗ return AVERROR_INVALIDDATA;
171 }
172
173 ✗ static int cmp_id_key(const void *id, const void *k)
174 {
175 ✗ return *(const int*)id - ((const TiffGeoTagKeyName*)k)->key;
176 }
177
178 ✗ static const char *search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
179 {
180 ✗ const TiffGeoTagKeyName *r = bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key);
181 ✗ if(r)
182 ✗ return r->name;
183
184 ✗ return NULL;
185 }
186
187 ✗ static const char *get_geokey_val(int key, uint16_t val)
188 {
189 ✗ if (val == TIFF_GEO_KEY_UNDEFINED)
190 ✗ return "undefined";
191 ✗ if (val == TIFF_GEO_KEY_USER_DEFINED)
192 ✗ return "User-Defined";
193
194 #define RET_GEOKEY_VAL(TYPE, array)\
195 if (val >= TIFF_##TYPE##_OFFSET &&\
196 val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(tiff_##array##_codes))\
197 return tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET];
198
199 ✗ switch (key) {
200 ✗ case TIFF_GT_MODEL_TYPE_GEOKEY:
201 ✗ RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
202 ✗ break;
203 ✗ case TIFF_GT_RASTER_TYPE_GEOKEY:
204 ✗ RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
205 ✗ break;
206 ✗ case TIFF_GEOG_LINEAR_UNITS_GEOKEY:
207 case TIFF_PROJ_LINEAR_UNITS_GEOKEY:
208 case TIFF_VERTICAL_UNITS_GEOKEY:
209 ✗ RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
210 ✗ break;
211 ✗ case TIFF_GEOG_ANGULAR_UNITS_GEOKEY:
212 case TIFF_GEOG_AZIMUTH_UNITS_GEOKEY:
213 ✗ RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
214 ✗ break;
215 ✗ case TIFF_GEOGRAPHIC_TYPE_GEOKEY:
216 ✗ RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
217 ✗ RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
218 ✗ break;
219 ✗ case TIFF_GEOG_GEODETIC_DATUM_GEOKEY:
220 ✗ RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
221 ✗ RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
222 ✗ break;
223 ✗ case TIFF_GEOG_ELLIPSOID_GEOKEY:
224 ✗ RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
225 ✗ break;
226 ✗ case TIFF_GEOG_PRIME_MERIDIAN_GEOKEY:
227 ✗ RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
228 ✗ break;
229 ✗ case TIFF_PROJECTED_CS_TYPE_GEOKEY:
230 ✗ return search_keyval(tiff_proj_cs_type_codes, FF_ARRAY_ELEMS(tiff_proj_cs_type_codes), val);
231 ✗ case TIFF_PROJECTION_GEOKEY:
232 ✗ return search_keyval(tiff_projection_codes, FF_ARRAY_ELEMS(tiff_projection_codes), val);
233 ✗ case TIFF_PROJ_COORD_TRANS_GEOKEY:
234 ✗ RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
235 ✗ break;
236 ✗ case TIFF_VERTICAL_CS_TYPE_GEOKEY:
237 ✗ RET_GEOKEY_VAL(VERT_CS, vert_cs);
238 ✗ RET_GEOKEY_VAL(ORTHO_VERT_CS, ortho_vert_cs);
239 ✗ break;
240
241 }
242
243 ✗ return NULL;
244 }
245
246 ✗ static char *doubles2str(double *dp, int count, const char *sep)
247 {
248 int i;
249 char *ap, *ap0;
250 uint64_t component_len;
251 ✗ if (!sep) sep = ", ";
252 ✗ component_len = 24LL + strlen(sep);
253 ✗ if (count >= (INT_MAX - 1)/component_len)
254 ✗ return NULL;
255 ✗ ap = av_malloc(component_len * count + 1);
256 ✗ if (!ap)
257 ✗ return NULL;
258 ✗ ap0 = ap;
259 ✗ ap[0] = '\0';
260 ✗ for (i = 0; i < count; i++) {
261 ✗ unsigned l = snprintf(ap, component_len, "%.15g%s", dp[i], sep);
262 ✗ if(l >= component_len) {
263 ✗ av_free(ap0);
264 ✗ return NULL;
265 }
266 ✗ ap += l;
267 }
268 ✗ ap0[strlen(ap0) - strlen(sep)] = '\0';
269 ✗ return ap0;
270 }
271
272 26 static int add_metadata(int count, int type,
273 const char *name, const char *sep, TiffContext *s, AVFrame *frame)
274 {
275
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 26 switch(type) {
276 ✗ case TIFF_DOUBLE: return ff_tadd_doubles_metadata(count, name, sep, &s->gb, s->le, &frame->metadata);
277 12 case TIFF_SHORT : return ff_tadd_shorts_metadata(count, name, sep, &s->gb, s->le, 0, &frame->metadata);
278 14 case TIFF_STRING: return ff_tadd_string_metadata(count, name, &s->gb, s->le, &frame->metadata);
279 ✗ default : return AVERROR_INVALIDDATA;
280 };
281 }
282
283 /**
284 * Map stored raw sensor values into linear reference values (see: DNG Specification - Chapter 5)
285 */
286 ✗ static uint16_t av_always_inline dng_process_color16(uint16_t value,
287 const uint16_t *lut,
288 float black_level,
289 float scale_factor)
290 {
291 float value_norm;
292
293 // Lookup table lookup
294 ✗ value = lut[value];
295
296 // Black level subtraction
297 // Color scaling
298 ✗ value_norm = ((float)value - black_level) * scale_factor;
299
300 ✗ value = av_clip_uint16(lrintf(value_norm));
301
302 ✗ return value;
303 }
304
305 ✗ static uint16_t av_always_inline dng_process_color8(uint16_t value,
306 const uint16_t *lut,
307 float black_level,
308 float scale_factor)
309 {
310 ✗ return dng_process_color16(value, lut, black_level, scale_factor) >> 8;
311 }
312
313 ✗ static void av_always_inline dng_blit(TiffContext *s, uint8_t *dst, int dst_stride,
314 const uint8_t *src, int src_stride, int width, int height,
315 int is_single_comp, int is_u16, int odd_line)
316 {
317 float scale_factor[4];
318 int line, col;
319
320 ✗ if (s->is_bayer) {
321 ✗ for (int i = 0; i < 4; i++)
322 ✗ scale_factor[i] = s->premultiply[s->pattern[i]] * 65535.f / (s->white_level - s->black_level[i]);
323 } else {
324 ✗ for (int i = 0; i < 4; i++)
325 ✗ scale_factor[i] = s->premultiply[ i ] * 65535.f / (s->white_level - s->black_level[i]);
326 }
327
328 ✗ if (is_single_comp) {
329 ✗ if (!is_u16)
330 ✗ return; /* <= 8bpp unsupported */
331
332 /* Image is double the width and half the height we need, each row comprises 2 rows of the output
333 (split vertically in the middle). */
334 ✗ for (line = 0; line < height / 2; line++) {
335 ✗ uint16_t *dst_u16 = (uint16_t *)dst;
336 ✗ const uint16_t *src_u16 = (const uint16_t *)src;
337
338 /* Blit first half of input row row to initial row of output */
339 ✗ for (col = 0; col < width; col++)
340 ✗ *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level[col&1], scale_factor[col&1]);
341
342 /* Advance the destination pointer by a row (source pointer remains in the same place) */
343 ✗ dst += dst_stride * sizeof(uint16_t);
344 ✗ dst_u16 = (uint16_t *)dst;
345
346 /* Blit second half of input row row to next row of output */
347 ✗ for (col = 0; col < width; col++)
348 ✗ *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level[(col&1) + 2], scale_factor[(col&1) + 2]);
349
350 ✗ dst += dst_stride * sizeof(uint16_t);
351 ✗ src += src_stride * sizeof(uint16_t);
352 }
353 } else {
354 /* Input and output image are the same size and the MJpeg decoder has done per-component
355 deinterleaving, so blitting here is straightforward. */
356 ✗ if (is_u16) {
357 ✗ for (line = 0; line < height; line++) {
358 ✗ uint16_t *dst_u16 = (uint16_t *)dst;
359 ✗ const uint16_t *src_u16 = (const uint16_t *)src;
360
361 ✗ for (col = 0; col < width; col++)
362 ✗ *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut,
363 ✗ s->black_level[(col&1) + 2 * ((line&1) + odd_line)],
364 ✗ scale_factor[(col&1) + 2 * ((line&1) + odd_line)]);
365
366 ✗ dst += dst_stride * sizeof(uint16_t);
367 ✗ src += src_stride * sizeof(uint16_t);
368 }
369 } else {
370 ✗ for (line = 0; line < height; line++) {
371 ✗ uint8_t *dst_u8 = dst;
372 ✗ const uint8_t *src_u8 = src;
373
374 ✗ for (col = 0; col < width; col++)
375 ✗ *dst_u8++ = dng_process_color8(*src_u8++, s->dng_lut,
376 ✗ s->black_level[(col&1) + 2 * ((line&1) + odd_line)],
377 ✗ scale_factor[(col&1) + 2 * ((line&1) + odd_line)]);
378
379 ✗ dst += dst_stride;
380 ✗ src += src_stride;
381 }
382 }
383 }
384 }
385
386 36484 static void av_always_inline horizontal_fill(TiffContext *s,
387 unsigned int bpp, uint8_t* dst,
388 int usePtr, const uint8_t *src,
389 uint8_t c, int width, int offset)
390 {
391
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 36484 switch (bpp) {
392 ✗ case 1:
393 ✗ while (--width >= 0) {
394 ✗ dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
395 ✗ dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
396 ✗ dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
397 ✗ dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
398 ✗ dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
399 ✗ dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
400 ✗ dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
401 ✗ dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
402 }
403 ✗ break;
404 ✗ case 2:
405 ✗ while (--width >= 0) {
406 ✗ dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
407 ✗ dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
408 ✗ dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
409 ✗ dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
410 }
411 ✗ break;
412 ✗ case 4:
413 ✗ while (--width >= 0) {
414 ✗ dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
415 ✗ dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
416 }
417 ✗ break;
418 ✗ case 10:
419 case 12:
420 case 14: {
421 ✗ uint16_t *dst16 = (uint16_t *)dst;
422 ✗ int is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
423 ✗ uint8_t shift = is_dng ? 0 : 16 - bpp;
424 GetBitContext gb;
425
426 ✗ av_unused int ret = init_get_bits8(&gb, src, width);
427 av_assert1(ret >= 0);
428 ✗ for (int i = 0; i < s->width; i++) {
429 ✗ dst16[i] = get_bits(&gb, bpp) << shift;
430 }
431 }
432 ✗ break;
433 36484 default:
434
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 36484 if (usePtr) {
435 34369 memcpy(dst + offset, src, width);
436 } else {
437 2115 memset(dst + offset, c, width);
438 }
439 }
440 36484 }
441
442 18 static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
443 {
444 int i;
445
446 18 av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
447
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 18 if (!s->deinvert_buf)
448 ✗ return AVERROR(ENOMEM);
449
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 251137 for (i = 0; i < size; i++)
450 251119 s->deinvert_buf[i] = ff_reverse[src[i]];
451
452 18 return 0;
453 }
454
455 ✗ static void unpack_gray(TiffContext *s, AVFrame *p,
456 const uint8_t *src, int lnum, int width, int bpp)
457 {
458 GetBitContext gb;
459 ✗ uint16_t *dst = (uint16_t *)(p->data[0] + lnum * p->linesize[0]);
460
461 ✗ av_unused int ret = init_get_bits8(&gb, src, width);
462 av_assert1(ret >= 0);
463
464 ✗ for (int i = 0; i < s->width; i++) {
465 ✗ dst[i] = get_bits(&gb, bpp);
466 }
467 ✗ }
468
469 ✗ static void unpack_yuv(TiffContext *s, AVFrame *p,
470 const uint8_t *src, int lnum)
471 {
472 int i, j, k;
473 ✗ int w = (s->width - 1) / s->subsampling[0] + 1;
474 ✗ uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
475 ✗ uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
476 ✗ if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
477 ✗ for (i = 0; i < w; i++) {
478 ✗ for (j = 0; j < s->subsampling[1]; j++)
479 ✗ for (k = 0; k < s->subsampling[0]; k++)
480 ✗ p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
481 ✗ FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++;
482 ✗ *pu++ = *src++;
483 ✗ *pv++ = *src++;
484 }
485 }else{
486 ✗ for (i = 0; i < w; i++) {
487 ✗ for (j = 0; j < s->subsampling[1]; j++)
488 ✗ for (k = 0; k < s->subsampling[0]; k++)
489 ✗ p->data[0][(lnum + j) * p->linesize[0] +
490 ✗ i * s->subsampling[0] + k] = *src++;
491 ✗ *pu++ = *src++;
492 ✗ *pv++ = *src++;
493 }
494 }
495 ✗ }
496
497 #if CONFIG_ZLIB
498 2 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
499 int size)
500 {
501 2 z_stream zstream = { 0 };
502 int zret;
503
504 2 zstream.next_in = src;
505 2 zstream.avail_in = size;
506 2 zstream.next_out = dst;
507 2 zstream.avail_out = *len;
508 2 zret = inflateInit(&zstream);
509
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 2 if (zret != Z_OK) {
510 ✗ av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
511 ✗ return zret;
512 }
513 2 zret = inflate(&zstream, Z_SYNC_FLUSH);
514 2 inflateEnd(&zstream);
515 2 *len = zstream.total_out;
516
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 2 return zret == Z_STREAM_END ? Z_OK : zret;
517 }
518
519 2 static int tiff_unpack_zlib(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
520 const uint8_t *src, int size, int width, int lines,
521 int strip_start, int is_yuv)
522 {
523 uint8_t *zbuf;
524 unsigned long outlen;
525 int ret, line;
526 2 outlen = width * lines;
527 2 zbuf = av_malloc(outlen);
528
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 2 if (!zbuf)
529 ✗ return AVERROR(ENOMEM);
530
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 2 if (s->fill_order) {
531 ✗ if ((ret = deinvert_buffer(s, src, size)) < 0) {
532 ✗ av_free(zbuf);
533 ✗ return ret;
534 }
535 ✗ src = s->deinvert_buf;
536 }
537 2 ret = tiff_uncompress(zbuf, &outlen, src, size);
538
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 2 if (ret != Z_OK) {
539 ✗ av_log(s->avctx, AV_LOG_ERROR,
540 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
541 ✗ (unsigned long)width * lines, ret);
542 ✗ av_free(zbuf);
543 ✗ return AVERROR_UNKNOWN;
544 }
545 2 src = zbuf;
546
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 18 for (line = 0; line < lines; line++) {
547
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 16 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
548 ✗ horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
549 } else {
550 16 memcpy(dst, src, width);
551 }
552
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 16 if (is_yuv) {
553 ✗ unpack_yuv(s, p, dst, strip_start + line);
554 ✗ line += s->subsampling[1] - 1;
555 }
556 16 dst += stride;
557 16 src += width;
558 }
559 2 av_free(zbuf);
560 2 return 0;
561 }
562 #endif
563
564 #if CONFIG_LZMA
565 ✗ static int tiff_uncompress_lzma(uint8_t *dst, uint64_t *len, const uint8_t *src,
566 int size)
567 {
568 ✗ lzma_stream stream = LZMA_STREAM_INIT;
569 lzma_ret ret;
570
571 ✗ stream.next_in = src;
572 ✗ stream.avail_in = size;
573 ✗ stream.next_out = dst;
574 ✗ stream.avail_out = *len;
575 ✗ ret = lzma_stream_decoder(&stream, UINT64_MAX, 0);
576 ✗ if (ret != LZMA_OK) {
577 ✗ av_log(NULL, AV_LOG_ERROR, "LZMA init error: %d\n", ret);
578 ✗ return ret;
579 }
580 ✗ ret = lzma_code(&stream, LZMA_RUN);
581 ✗ lzma_end(&stream);
582 ✗ *len = stream.total_out;
583 ✗ return ret == LZMA_STREAM_END ? LZMA_OK : ret;
584 }
585
586 ✗ static int tiff_unpack_lzma(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
587 const uint8_t *src, int size, int width, int lines,
588 int strip_start, int is_yuv)
589 {
590 ✗ uint64_t outlen = width * (uint64_t)lines;
591 int ret, line;
592 ✗ uint8_t *buf = av_malloc(outlen);
593 ✗ if (!buf)
594 ✗ return AVERROR(ENOMEM);
595 ✗ if (s->fill_order) {
596 ✗ if ((ret = deinvert_buffer(s, src, size)) < 0) {
597 ✗ av_free(buf);
598 ✗ return ret;
599 }
600 ✗ src = s->deinvert_buf;
601 }
602 ✗ ret = tiff_uncompress_lzma(buf, &outlen, src, size);
603 ✗ if (ret != LZMA_OK) {
604 ✗ av_log(s->avctx, AV_LOG_ERROR,
605 "Uncompressing failed (%"PRIu64" of %"PRIu64") with error %d\n", outlen,
606 ✗ (uint64_t)width * lines, ret);
607 ✗ av_free(buf);
608 ✗ return AVERROR_UNKNOWN;
609 }
610 ✗ src = buf;
611 ✗ for (line = 0; line < lines; line++) {
612 ✗ if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
613 ✗ horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
614 } else {
615 ✗ memcpy(dst, src, width);
616 }
617 ✗ if (is_yuv) {
618 ✗ unpack_yuv(s, p, dst, strip_start + line);
619 ✗ line += s->subsampling[1] - 1;
620 }
621 ✗ dst += stride;
622 ✗ src += width;
623 }
624 ✗ av_free(buf);
625 ✗ return 0;
626 }
627 #endif
628
629 18 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
630 const uint8_t *src, int size, int width, int lines)
631 {
632 int line;
633 int ret;
634
635
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 18 if (s->fill_order) {
636
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 18 if ((ret = deinvert_buffer(s, src, size)) < 0)
637 ✗ return ret;
638 18 src = s->deinvert_buf;
639 }
640 18 ret = ff_ccitt_unpack(s->avctx, src, size, dst, lines, stride,
641 s->compr, s->fax_opts);
642
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 18 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
643 ✗ for (line = 0; line < lines; line++) {
644 ✗ horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
645 ✗ dst += stride;
646 }
647 18 return ret;
648 }
649
650 ✗ static int dng_decode_jpeg(AVCodecContext *avctx, AVFrame *frame,
651 int tile_byte_count, int dst_x, int dst_y, int w, int h)
652 {
653 ✗ TiffContext *s = avctx->priv_data;
654 uint8_t *dst_data, *src_data;
655 uint32_t dst_offset; /* offset from dst buffer in pixels */
656 int is_single_comp, is_u16, pixel_size;
657 int ret;
658
659 ✗ if (tile_byte_count < 0 || tile_byte_count > bytestream2_get_bytes_left(&s->gb))
660 ✗ return AVERROR_INVALIDDATA;
661
662 /* Prepare a packet and send to the MJPEG decoder */
663 ✗ av_packet_unref(s->jpkt);
664 ✗ s->jpkt->data = (uint8_t*)s->gb.buffer;
665 ✗ s->jpkt->size = tile_byte_count;
666
667 ✗ if (s->is_bayer) {
668 ✗ MJpegDecodeContext *mjpegdecctx = s->avctx_mjpeg->priv_data;
669 /* We have to set this information here, there is no way to know if a given JPEG is a DNG-embedded
670 image or not from its own data (and we need that information when decoding it). */
671 ✗ mjpegdecctx->bayer = 1;
672 }
673
674 ✗ ret = avcodec_send_packet(s->avctx_mjpeg, s->jpkt);
675 ✗ if (ret < 0) {
676 ✗ av_log(avctx, AV_LOG_ERROR, "Error submitting a packet for decoding\n");
677 ✗ return ret;
678 }
679
680 ✗ ret = avcodec_receive_frame(s->avctx_mjpeg, s->jpgframe);
681 ✗ if (ret < 0) {
682 ✗ av_log(avctx, AV_LOG_ERROR, "JPEG decoding error: %s.\n", av_err2str(ret));
683
684 /* Normally skip, error if explode */
685 ✗ if (avctx->err_recognition & AV_EF_EXPLODE)
686 ✗ return AVERROR_INVALIDDATA;
687 else
688 ✗ return 0;
689 }
690
691 ✗ is_u16 = (s->bpp > 8);
692
693 /* Copy the outputted tile's pixels from 'jpgframe' to 'frame' (final buffer) */
694
695 ✗ if (s->jpgframe->width != s->avctx_mjpeg->width ||
696 ✗ s->jpgframe->height != s->avctx_mjpeg->height ||
697 ✗ s->jpgframe->format != s->avctx_mjpeg->pix_fmt)
698 ✗ return AVERROR_INVALIDDATA;
699
700 /* See dng_blit for explanation */
701 ✗ if (s->avctx_mjpeg->width == w * 2 &&
702 ✗ s->avctx_mjpeg->height == h / 2 &&
703 ✗ s->avctx_mjpeg->pix_fmt == AV_PIX_FMT_GRAY16LE) {
704 ✗ is_single_comp = 1;
705 ✗ } else if (s->avctx_mjpeg->width >= w &&
706 ✗ s->avctx_mjpeg->height >= h &&
707 ✗ s->avctx_mjpeg->pix_fmt == (is_u16 ? AV_PIX_FMT_GRAY16 : AV_PIX_FMT_GRAY8)
708 ) {
709 ✗ is_single_comp = 0;
710 } else
711 ✗ return AVERROR_INVALIDDATA;
712
713 ✗ pixel_size = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
714
715 ✗ if (is_single_comp && !is_u16) {
716 ✗ av_log(s->avctx, AV_LOG_ERROR, "DNGs with bpp <= 8 and 1 component are unsupported\n");
717 ✗ av_frame_unref(s->jpgframe);
718 ✗ return AVERROR_PATCHWELCOME;
719 }
720
721 ✗ dst_offset = dst_x + frame->linesize[0] * dst_y / pixel_size;
722 ✗ dst_data = frame->data[0] + dst_offset * pixel_size;
723 ✗ src_data = s->jpgframe->data[0];
724
725 ✗ dng_blit(s,
726 dst_data,
727 ✗ frame->linesize[0] / pixel_size,
728 src_data,
729 ✗ s->jpgframe->linesize[0] / pixel_size,
730 w,
731 h,
732 is_single_comp,
733 is_u16, 0);
734
735 ✗ av_frame_unref(s->jpgframe);
736
737 ✗ return 0;
738 }
739
740 579 static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
741 const uint8_t *src, int size, int strip_start, int lines)
742 {
743 PutByteContext pb;
744 int c, line, pixels, code, ret;
745 579 const uint8_t *ssrc = src;
746 579 int width = ((s->width * s->bpp) + 7) >> 3;
747 579 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(p->format);
748 1176 int is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) &&
749
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 579 (desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
750 ✗ desc->nb_components >= 3;
751 int is_dng;
752
753
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 579 if (s->planar)
754 ✗ width /= s->bppcount;
755
756
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 579 if (size <= 0)
757 ✗ return AVERROR_INVALIDDATA;
758
759
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 579 if (is_yuv) {
760 ✗ int bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
761 ✗ s->subsampling[0] * s->subsampling[1] + 7) >> 3;
762 ✗ av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row);
763 ✗ if (s->yuv_line == NULL) {
764 ✗ av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
765 ✗ return AVERROR(ENOMEM);
766 }
767 ✗ dst = s->yuv_line;
768 ✗ stride = 0;
769
770 ✗ width = (s->width - 1) / s->subsampling[0] + 1;
771 ✗ width = width * s->subsampling[0] * s->subsampling[1] + 2*width;
772 ✗ av_assert0(width <= bytes_per_row);
773 ✗ av_assert0(s->bpp == 24);
774 }
775
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 579 if (s->is_bayer) {
776 ✗ av_assert0(width == (s->bpp * s->width + 7) >> 3);
777 }
778
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 579 av_assert0(!(s->is_bayer && is_yuv));
779
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 579 if (p->format == AV_PIX_FMT_GRAY12) {
780 ✗ av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, width);
781 ✗ if (s->yuv_line == NULL) {
782 ✗ av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
783 ✗ return AVERROR(ENOMEM);
784 }
785 ✗ dst = s->yuv_line;
786 ✗ stride = 0;
787 }
788
789
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 579 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
790 #if CONFIG_ZLIB
791 2 return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines,
792 strip_start, is_yuv);
793 #else
794 av_log(s->avctx, AV_LOG_ERROR,
795 "zlib support not enabled, "
796 "deflate compression not supported\n");
797 return AVERROR(ENOSYS);
798 #endif
799 }
800
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 577 if (s->compr == TIFF_LZMA) {
801 #if CONFIG_LZMA
802 ✗ return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
803 strip_start, is_yuv);
804 #else
805 av_log(s->avctx, AV_LOG_ERROR,
806 "LZMA support not enabled\n");
807 return AVERROR(ENOSYS);
808 #endif
809 }
810
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 577 if (s->compr == TIFF_LZW) {
811
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 2 if (s->fill_order) {
812 ✗ if ((ret = deinvert_buffer(s, src, size)) < 0)
813 ✗ return ret;
814 ✗ ssrc = src = s->deinvert_buf;
815 }
816
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 2 if (size > 1 && !src[0] && (src[1]&1)) {
817 ✗ av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
818 }
819
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 2 if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
820 ✗ av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
821 ✗ return ret;
822 }
823
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 18 for (line = 0; line < lines; line++) {
824 16 pixels = ff_lzw_decode(s->lzw, dst, width);
825
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 16 if (pixels < width) {
826 ✗ av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
827 pixels, width);
828 ✗ return AVERROR_INVALIDDATA;
829 }
830
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 16 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
831 ✗ horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
832
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 16 if (is_yuv) {
833 ✗ unpack_yuv(s, p, dst, strip_start + line);
834 ✗ line += s->subsampling[1] - 1;
835
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 16 } else if (p->format == AV_PIX_FMT_GRAY12) {
836 ✗ unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
837 }
838 16 dst += stride;
839 }
840 2 return 0;
841 }
842
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 575 if (s->compr == TIFF_CCITT_RLE ||
843
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 575 s->compr == TIFF_G3 ||
844
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 557 s->compr == TIFF_G4) {
845
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 18 if (is_yuv || p->format == AV_PIX_FMT_GRAY12)
846 ✗ return AVERROR_INVALIDDATA;
847
848 18 return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
849 }
850
851 557 bytestream2_init(&s->gb, src, size);
852
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 557 bytestream2_init_writer(&pb, dst, is_yuv ? s->yuv_line_size : (stride * lines));
853
854
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 557 is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
855
856 /* Decode JPEG-encoded DNGs with strips */
857
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 557 if (s->compr == TIFF_NEWJPEG && is_dng) {
858 ✗ if (s->strips > 1) {
859 ✗ av_log(s->avctx, AV_LOG_ERROR, "More than one DNG JPEG strips unsupported\n");
860 ✗ return AVERROR_PATCHWELCOME;
861 }
862 ✗ if (!s->is_bayer)
863 ✗ return AVERROR_PATCHWELCOME;
864 ✗ if ((ret = dng_decode_jpeg(s->avctx, p, s->stripsize, 0, 0, s->width, s->height)) < 0)
865 ✗ return ret;
866 ✗ return 0;
867 }
868
869
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 557 if (is_dng && stride == 0)
870 ✗ return AVERROR_INVALIDDATA;
871
872
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 4429 for (line = 0; line < lines; line++) {
873
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 3872 if (src - ssrc > size) {
874 ✗ av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
875 ✗ return AVERROR_INVALIDDATA;
876 }
877
878
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 3872 if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb))
879 break;
880 3872 bytestream2_seek_p(&pb, stride * line, SEEK_SET);
881
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 3872 switch (s->compr) {
882 128 case TIFF_RAW:
883
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 128 if (ssrc + size - src < width)
884 ✗ return AVERROR_INVALIDDATA;
885
886
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 128 if (!s->fill_order) {
887
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 128 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 || s->is_bayer),
888 dst, 1, src, 0, width, 0);
889 } else {
890 int i;
891 ✗ for (i = 0; i < width; i++)
892 ✗ dst[i] = ff_reverse[src[i]];
893 }
894
895 /* Color processing for DNG images with uncompressed strips (non-tiled) */
896
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 128 if (is_dng) {
897 int is_u16, pixel_size_bytes, pixel_size_bits, elements;
898
899 ✗ is_u16 = (s->bpp / s->bppcount > 8);
900 ✗ pixel_size_bits = (is_u16 ? 16 : 8);
901 ✗ pixel_size_bytes = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
902
903 ✗ elements = width / pixel_size_bytes * pixel_size_bits / s->bpp * s->bppcount; // need to account for [1, 16] bpp
904 ✗ av_assert0 (elements * pixel_size_bytes <= FFABS(stride));
905 ✗ dng_blit(s,
906 dst,
907 0, // no stride, only 1 line
908 dst,
909 0, // no stride, only 1 line
910 elements,
911 1,
912 0, // single-component variation is only preset in JPEG-encoded DNGs
913 is_u16,
914 ✗ (line + strip_start)&1);
915 }
916
917 128 src += width;
918 128 break;
919 3744 case TIFF_PACKBITS:
920
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 40100 for (pixels = 0; pixels < width;) {
921
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 36356 if (ssrc + size - src < 2) {
922 ✗ av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
923 ✗ return AVERROR_INVALIDDATA;
924 }
925
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 36356 code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
926
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 36356 if (code >= 0) {
927 34241 code++;
928
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 34241 if (pixels + code > width ||
929
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 34241 ssrc + size - src < code) {
930 ✗ av_log(s->avctx, AV_LOG_ERROR,
931 "Copy went out of bounds\n");
932 ✗ return AVERROR_INVALIDDATA;
933 }
934 34241 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
935 dst, 1, src, 0, code, pixels);
936 34241 src += code;
937 34241 pixels += code;
938
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 2115 } else if (code != -128) { // -127..-1
939 2115 code = (-code) + 1;
940
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 2115 if (pixels + code > width) {
941 ✗ av_log(s->avctx, AV_LOG_ERROR,
942 "Run went out of bounds\n");
943 ✗ return AVERROR_INVALIDDATA;
944 }
945 2115 c = *src++;
946 2115 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
947 dst, 0, NULL, c, code, pixels);
948 2115 pixels += code;
949 }
950 }
951
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 3744 if (s->fill_order) {
952 int i;
953 ✗ for (i = 0; i < width; i++)
954 ✗ dst[i] = ff_reverse[dst[i]];
955 }
956 3744 break;
957 }
958
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 3872 if (is_yuv) {
959 ✗ unpack_yuv(s, p, dst, strip_start + line);
960 ✗ line += s->subsampling[1] - 1;
961
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 3872 } else if (p->format == AV_PIX_FMT_GRAY12) {
962 ✗ unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
963 }
964 3872 dst += stride;
965 }
966 557 return 0;
967 }
968
969 ✗ static int dng_decode_tiles(AVCodecContext *avctx, AVFrame *frame,
970 const AVPacket *avpkt)
971 {
972 ✗ TiffContext *s = avctx->priv_data;
973 int tile_idx;
974 int tile_offset_offset, tile_offset;
975 int tile_byte_count_offset, tile_byte_count;
976 int tile_count_x, tile_count_y;
977 int tile_width, tile_length;
978 int has_width_leftover, has_height_leftover;
979 ✗ int tile_x = 0, tile_y = 0;
980 ✗ int pos_x = 0, pos_y = 0;
981 int ret;
982
983 ✗ if (s->tile_width <= 0 || s->tile_length <= 0)
984 ✗ return AVERROR_INVALIDDATA;
985
986 ✗ has_width_leftover = (s->width % s->tile_width != 0);
987 ✗ has_height_leftover = (s->height % s->tile_length != 0);
988
989 /* Calculate tile counts (round up) */
990 ✗ tile_count_x = (s->width + s->tile_width - 1) / s->tile_width;
991 ✗ tile_count_y = (s->height + s->tile_length - 1) / s->tile_length;
992
993 /* Iterate over the number of tiles */
994 ✗ for (tile_idx = 0; tile_idx < tile_count_x * tile_count_y; tile_idx++) {
995 ✗ tile_x = tile_idx % tile_count_x;
996 ✗ tile_y = tile_idx / tile_count_x;
997
998 ✗ if (has_width_leftover && tile_x == tile_count_x - 1) // If on the right-most tile
999 ✗ tile_width = s->width % s->tile_width;
1000 else
1001 ✗ tile_width = s->tile_width;
1002
1003 ✗ if (has_height_leftover && tile_y == tile_count_y - 1) // If on the bottom-most tile
1004 ✗ tile_length = s->height % s->tile_length;
1005 else
1006 ✗ tile_length = s->tile_length;
1007
1008 /* Read tile offset */
1009 ✗ tile_offset_offset = s->tile_offsets_offset + tile_idx * sizeof(int);
1010 ✗ bytestream2_seek(&s->gb, tile_offset_offset, SEEK_SET);
1011 ✗ tile_offset = ff_tget_long(&s->gb, s->le);
1012
1013 /* Read tile byte size */
1014 ✗ tile_byte_count_offset = s->tile_byte_counts_offset + tile_idx * sizeof(int);
1015 ✗ bytestream2_seek(&s->gb, tile_byte_count_offset, SEEK_SET);
1016 ✗ tile_byte_count = ff_tget_long(&s->gb, s->le);
1017
1018 /* Seek to tile data */
1019 ✗ bytestream2_seek(&s->gb, tile_offset, SEEK_SET);
1020
1021 /* Decode JPEG tile and copy it in the reference frame */
1022 ✗ ret = dng_decode_jpeg(avctx, frame, tile_byte_count, pos_x, pos_y, tile_width, tile_length);
1023
1024 ✗ if (ret < 0)
1025 ✗ return ret;
1026
1027 /* Advance current positions */
1028 ✗ pos_x += tile_width;
1029 ✗ if (tile_x == tile_count_x - 1) { // If on the right edge
1030 ✗ pos_x = 0;
1031 ✗ pos_y += tile_length;
1032 }
1033 }
1034
1035 /* Frame is ready to be output */
1036 ✗ frame->pict_type = AV_PICTURE_TYPE_I;
1037 ✗ frame->flags |= AV_FRAME_FLAG_KEY;
1038
1039 ✗ return avpkt->size;
1040 }
1041
1042 33 static int init_image(TiffContext *s, AVFrame *frame)
1043 {
1044 int ret;
1045 33 int create_gray_palette = 0;
1046
1047 // make sure there is no aliasing in the following switch
1048
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 33 if (s->bpp > 128 || s->bppcount >= 10) {
1049 ✗ av_log(s->avctx, AV_LOG_ERROR,
1050 "Unsupported image parameters: bpp=%d, bppcount=%d\n",
1051 s->bpp, s->bppcount);
1052 ✗ return AVERROR_INVALIDDATA;
1053 }
1054
1055
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 33 switch (s->planar * 10000 + s->bpp * 10 + s->bppcount + s->is_bayer * 100000) {
1056 4 case 11:
1057
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 4 if (!s->palette_is_set) {
1058 4 s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
1059 4 break;
1060 }
1061 case 21:
1062 case 41:
1063 ✗ s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
1064 ✗ if (!s->palette_is_set) {
1065 ✗ create_gray_palette = 1;
1066 }
1067 ✗ break;
1068 ✗ case 81:
1069 ✗ s->avctx->pix_fmt = s->palette_is_set ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_GRAY8;
1070 ✗ break;
1071 ✗ case 121:
1072 ✗ s->avctx->pix_fmt = AV_PIX_FMT_GRAY12;
1073 ✗ break;
1074 ✗ case 100081:
1075 ✗ switch (AV_RL32(s->pattern)) {
1076 ✗ case 0x02010100:
1077 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB8;
1078 ✗ break;
1079 ✗ case 0x00010102:
1080 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR8;
1081 ✗ break;
1082 ✗ case 0x01000201:
1083 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG8;
1084 ✗ break;
1085 ✗ case 0x01020001:
1086 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG8;
1087 ✗ break;
1088 ✗ default:
1089 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1090 ✗ AV_RL32(s->pattern));
1091 ✗ return AVERROR_PATCHWELCOME;
1092 }
1093 ✗ break;
1094 ✗ case 100101:
1095 case 100121:
1096 case 100141:
1097 case 100161:
1098 ✗ switch (AV_RL32(s->pattern)) {
1099 ✗ case 0x02010100:
1100 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB16;
1101 ✗ break;
1102 ✗ case 0x00010102:
1103 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR16;
1104 ✗ break;
1105 ✗ case 0x01000201:
1106 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG16;
1107 ✗ break;
1108 ✗ case 0x01020001:
1109 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG16;
1110 ✗ break;
1111 ✗ default:
1112 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1113 ✗ AV_RL32(s->pattern));
1114 ✗ return AVERROR_PATCHWELCOME;
1115 }
1116 ✗ break;
1117 17 case 243:
1118
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 17 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1119 ✗ if (s->subsampling[0] == 1 && s->subsampling[1] == 1) {
1120 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV444P;
1121 ✗ } else if (s->subsampling[0] == 2 && s->subsampling[1] == 1) {
1122 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV422P;
1123 ✗ } else if (s->subsampling[0] == 4 && s->subsampling[1] == 1) {
1124 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV411P;
1125 ✗ } else if (s->subsampling[0] == 1 && s->subsampling[1] == 2) {
1126 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV440P;
1127 ✗ } else if (s->subsampling[0] == 2 && s->subsampling[1] == 2) {
1128 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV420P;
1129 ✗ } else if (s->subsampling[0] == 4 && s->subsampling[1] == 4) {
1130 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV410P;
1131 } else {
1132 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr subsampling\n");
1133 ✗ return AVERROR_PATCHWELCOME;
1134 }
1135 } else
1136 17 s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
1137 17 break;
1138 ✗ case 161:
1139 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
1140 ✗ break;
1141 ✗ case 162:
1142 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YA8;
1143 ✗ break;
1144 ✗ case 322:
1145 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_YA16LE : AV_PIX_FMT_YA16BE;
1146 ✗ break;
1147 ✗ case 324:
1148 ✗ s->avctx->pix_fmt = s->photometric == TIFF_PHOTOMETRIC_SEPARATED ? AV_PIX_FMT_RGB0 : AV_PIX_FMT_RGBA;
1149 ✗ break;
1150 ✗ case 405:
1151 ✗ if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED)
1152 ✗ s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
1153 else {
1154 ✗ av_log(s->avctx, AV_LOG_ERROR,
1155 "bpp=40 without PHOTOMETRIC_SEPARATED is unsupported\n");
1156 ✗ return AVERROR_PATCHWELCOME;
1157 }
1158 ✗ break;
1159 ✗ case 483:
1160 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
1161 ✗ break;
1162 ✗ case 644:
1163 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
1164 ✗ break;
1165 ✗ case 10243:
1166 ✗ s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
1167 ✗ break;
1168 ✗ case 10324:
1169 ✗ s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
1170 ✗ break;
1171 ✗ case 10483:
1172 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE;
1173 ✗ break;
1174 ✗ case 10644:
1175 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE;
1176 ✗ break;
1177 6 case 963:
1178
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 6 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBF32LE : AV_PIX_FMT_RGBF32BE;
1179 6 break;
1180 6 case 1284:
1181
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 6 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBAF32LE : AV_PIX_FMT_RGBAF32BE;
1182 6 break;
1183 ✗ case 10963:
1184 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRPF32LE : AV_PIX_FMT_GBRPF32BE;
1185 ✗ break;
1186 ✗ case 11284:
1187 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAPF32LE : AV_PIX_FMT_GBRAPF32BE;
1188 ✗ break;
1189 ✗ default:
1190 ✗ av_log(s->avctx, AV_LOG_ERROR,
1191 "This format is not supported (bpp=%d, bppcount=%d)\n",
1192 s->bpp, s->bppcount);
1193 ✗ return AVERROR_INVALIDDATA;
1194 }
1195
1196
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 33 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1197 ✗ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
1198 ✗ if((desc->flags & AV_PIX_FMT_FLAG_RGB) ||
1199 ✗ !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) ||
1200 ✗ desc->nb_components < 3) {
1201 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr variant\n");
1202 ✗ return AVERROR_INVALIDDATA;
1203 }
1204 }
1205
1206
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 33 if (s->width != s->avctx->width || s->height != s->avctx->height) {
1207 11 ret = ff_set_dimensions(s->avctx, s->width, s->height);
1208
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 11 if (ret < 0)
1209 ✗ return ret;
1210 }
1211
1212
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 33 if (s->avctx->skip_frame >= AVDISCARD_ALL)
1213 11 return 0;
1214
1215
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 22 if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
1216 ✗ return ret;
1217
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 22 if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
1218 ✗ if (!create_gray_palette)
1219 ✗ memcpy(frame->data[1], s->palette, sizeof(s->palette));
1220 else {
1221 /* make default grayscale pal */
1222 int i;
1223 ✗ uint32_t *pal = (uint32_t *)frame->data[1];
1224 ✗ for (i = 0; i < 1<<s->bpp; i++)
1225 ✗ pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
1226 }
1227 }
1228 22 return 1;
1229 }
1230
1231 42 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
1232 {
1233
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 42 int offset = tag == TIFF_YRES ? 2 : 0;
1234 42 s->res[offset++] = num;
1235 42 s->res[offset] = den;
1236
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 42 if (s->res[0] && s->res[1] && s->res[2] && s->res[3]) {
1237 33 uint64_t num = s->res[2] * (uint64_t)s->res[1];
1238 33 uint64_t den = s->res[0] * (uint64_t)s->res[3];
1239
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 33 if (num > INT64_MAX || den > INT64_MAX) {
1240 ✗ num = num >> 1;
1241 ✗ den = den >> 1;
1242 }
1243 33 av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den,
1244 num, den, INT32_MAX);
1245
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 33 if (!s->avctx->sample_aspect_ratio.den)
1246 ✗ s->avctx->sample_aspect_ratio = (AVRational) {0, 1};
1247 }
1248 42 }
1249
1250 519 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
1251 {
1252 AVFrameSideData *sd;
1253 GetByteContext gb_temp;
1254 519 unsigned tag, type, count, off, value = 0, value2 = 1; // value2 is a denominator so init. to 1
1255 int i, start;
1256 int pos;
1257 int ret;
1258 double *dp;
1259
1260 519 ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
1261
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 519 if (ret < 0) {
1262 ✗ goto end;
1263 }
1264
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 519 if (tag <= s->last_tag)
1265 ✗ return AVERROR_INVALIDDATA;
1266
1267 // We ignore TIFF_STRIP_SIZE as it is sometimes in the logic but wrong order around TIFF_STRIP_OFFS
1268
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 519 if (tag != TIFF_STRIP_SIZE)
1269 486 s->last_tag = tag;
1270
1271 519 off = bytestream2_tell(&s->gb);
1272
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 519 if (count == 1) {
1273
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 374 switch (type) {
1274 332 case TIFF_BYTE:
1275 case TIFF_SHORT:
1276 case TIFF_LONG:
1277 332 value = ff_tget(&s->gb, type, s->le);
1278 332 break;
1279 42 case TIFF_RATIONAL:
1280 42 value = ff_tget_long(&s->gb, s->le);
1281 42 value2 = ff_tget_long(&s->gb, s->le);
1282
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 42 if (!value2) {
1283 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator in rational\n");
1284 ✗ value2 = 1;
1285 }
1286
1287 42 break;
1288 ✗ case TIFF_STRING:
1289 ✗ if (count <= 4) {
1290 ✗ break;
1291 }
1292 default:
1293 ✗ value = UINT_MAX;
1294 }
1295 }
1296
1297
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 519 switch (tag) {
1298 15 case TIFF_SUBFILE:
1299 15 s->is_thumbnail = (value != 0);
1300 15 break;
1301 33 case TIFF_WIDTH:
1302
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 33 if (value > INT_MAX)
1303 ✗ return AVERROR_INVALIDDATA;
1304 33 s->width = value;
1305 33 break;
1306 33 case TIFF_HEIGHT:
1307
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 33 if (value > INT_MAX)
1308 ✗ return AVERROR_INVALIDDATA;
1309 33 s->height = value;
1310 33 break;
1311 33 case TIFF_BPP:
1312
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 33 if (count > 5 || count <= 0) {
1313 ✗ av_log(s->avctx, AV_LOG_ERROR,
1314 "This format is not supported (bpp=%d, %d components)\n",
1315 value, count);
1316 ✗ return AVERROR_INVALIDDATA;
1317 }
1318 33 s->bppcount = count;
1319
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 33 if (count == 1)
1320 4 s->bpp = value;
1321 else {
1322
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 29 switch (type) {
1323 29 case TIFF_BYTE:
1324 case TIFF_SHORT:
1325 case TIFF_LONG:
1326 29 s->bpp = 0;
1327
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 29 if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
1328 ✗ return AVERROR_INVALIDDATA;
1329
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 122 for (i = 0; i < count; i++)
1330 93 s->bpp += ff_tget(&s->gb, type, s->le);
1331 29 break;
1332 ✗ default:
1333 ✗ s->bpp = -1;
1334 }
1335 }
1336 33 break;
1337 33 case TIFF_SAMPLES_PER_PIXEL:
1338
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 33 if (count != 1) {
1339 ✗ av_log(s->avctx, AV_LOG_ERROR,
1340 "Samples per pixel requires a single value, many provided\n");
1341 ✗ return AVERROR_INVALIDDATA;
1342 }
1343
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 33 if (value > 5 || value <= 0) {
1344 ✗ av_log(s->avctx, AV_LOG_ERROR,
1345 "Invalid samples per pixel %d\n", value);
1346 ✗ return AVERROR_INVALIDDATA;
1347 }
1348
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 33 if (s->bppcount == 1)
1349 4 s->bpp *= value;
1350 33 s->bppcount = value;
1351 33 break;
1352 33 case TIFF_COMPR:
1353 33 s->compr = value;
1354 33 av_log(s->avctx, AV_LOG_DEBUG, "compression: %d\n", s->compr);
1355 33 s->predictor = 0;
1356
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 33 switch (s->compr) {
1357 25 case TIFF_RAW:
1358 case TIFF_PACKBITS:
1359 case TIFF_LZW:
1360 case TIFF_CCITT_RLE:
1361 25 break;
1362 4 case TIFF_G3:
1363 case TIFF_G4:
1364 4 s->fax_opts = 0;
1365 4 break;
1366 4 case TIFF_DEFLATE:
1367 case TIFF_ADOBE_DEFLATE:
1368 #if CONFIG_ZLIB
1369 4 break;
1370 #else
1371 av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
1372 return AVERROR(ENOSYS);
1373 #endif
1374 ✗ case TIFF_JPEG:
1375 case TIFF_NEWJPEG:
1376 ✗ s->is_jpeg = 1;
1377 ✗ break;
1378 ✗ case TIFF_LZMA:
1379 #if CONFIG_LZMA
1380 ✗ break;
1381 #else
1382 av_log(s->avctx, AV_LOG_ERROR, "LZMA not compiled in\n");
1383 return AVERROR(ENOSYS);
1384 #endif
1385 ✗ default:
1386 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
1387 ✗ s->compr);
1388 ✗ return AVERROR_INVALIDDATA;
1389 }
1390 33 break;
1391 33 case TIFF_ROWSPERSTRIP:
1392
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 33 if (!value || (type == TIFF_LONG && value == UINT_MAX))
1393 ✗ value = s->height;
1394 33 s->rps = FFMIN(value, s->height);
1395 33 break;
1396 33 case TIFF_STRIP_OFFS:
1397
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 33 if (count == 1) {
1398
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 14 if (value > INT_MAX) {
1399 ✗ av_log(s->avctx, AV_LOG_ERROR,
1400 "strippos %u too large\n", value);
1401 ✗ return AVERROR_INVALIDDATA;
1402 }
1403 14 s->strippos = 0;
1404 14 s->stripoff = value;
1405 } else
1406 19 s->strippos = off;
1407 33 s->strips = count;
1408
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 33 if (s->strips == s->bppcount)
1409 2 s->rps = s->height;
1410 33 s->sot = type;
1411 33 break;
1412 33 case TIFF_STRIP_SIZE:
1413
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 33 if (count == 1) {
1414
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 14 if (value > INT_MAX) {
1415 ✗ av_log(s->avctx, AV_LOG_ERROR,
1416 "stripsize %u too large\n", value);
1417 ✗ return AVERROR_INVALIDDATA;
1418 }
1419 14 s->stripsizesoff = 0;
1420 14 s->stripsize = value;
1421 14 s->strips = 1;
1422 } else {
1423 19 s->stripsizesoff = off;
1424 }
1425 33 s->strips = count;
1426 33 s->sstype = type;
1427 33 break;
1428 42 case TIFF_XRES:
1429 case TIFF_YRES:
1430 42 set_sar(s, tag, value, value2);
1431 42 break;
1432 ✗ case TIFF_TILE_OFFSETS:
1433 ✗ s->tile_offsets_offset = off;
1434 ✗ s->is_tiled = 1;
1435 ✗ break;
1436 ✗ case TIFF_TILE_BYTE_COUNTS:
1437 ✗ s->tile_byte_counts_offset = off;
1438 ✗ break;
1439 ✗ case TIFF_TILE_LENGTH:
1440 ✗ if (value > INT_MAX)
1441 ✗ return AVERROR_INVALIDDATA;
1442 ✗ s->tile_length = value;
1443 ✗ break;
1444 ✗ case TIFF_TILE_WIDTH:
1445 ✗ if (value > INT_MAX)
1446 ✗ return AVERROR_INVALIDDATA;
1447 ✗ s->tile_width = value;
1448 ✗ break;
1449 8 case TIFF_PREDICTOR:
1450
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 8 if (value > INT_MAX)
1451 ✗ return AVERROR_INVALIDDATA;
1452 8 s->predictor = value;
1453 8 break;
1454 ✗ case TIFF_SUB_IFDS:
1455 ✗ if (count == 1)
1456 ✗ s->sub_ifd = value;
1457 ✗ else if (count > 1)
1458 ✗ s->sub_ifd = ff_tget_long(&s->gb, s->le); /** Only get the first SubIFD */
1459 ✗ break;
1460 ✗ case TIFF_GRAY_RESPONSE_CURVE:
1461 case DNG_LINEARIZATION_TABLE:
1462 ✗ if (count < 1 || count > FF_ARRAY_ELEMS(s->dng_lut))
1463 ✗ return AVERROR_INVALIDDATA;
1464 ✗ for (int i = 0; i < count; i++)
1465 ✗ s->dng_lut[i] = ff_tget(&s->gb, type, s->le);
1466 ✗ s->white_level = s->dng_lut[count-1];
1467 ✗ break;
1468 ✗ case DNG_BLACK_LEVEL:
1469 ✗ if (count > FF_ARRAY_ELEMS(s->black_level))
1470 ✗ return AVERROR_INVALIDDATA;
1471 ✗ s->black_level[0] = value / (float)value2;
1472 ✗ for (int i = 0; i < count && count > 1; i++) {
1473 ✗ if (type == TIFF_RATIONAL) {
1474 ✗ value = ff_tget_long(&s->gb, s->le);
1475 ✗ value2 = ff_tget_long(&s->gb, s->le);
1476 ✗ if (!value2) {
1477 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1478 ✗ value2 = 1;
1479 }
1480
1481 ✗ s->black_level[i] = value / (float)value2;
1482 ✗ } else if (type == TIFF_SRATIONAL) {
1483 ✗ int value = ff_tget_long(&s->gb, s->le);
1484 ✗ int value2 = ff_tget_long(&s->gb, s->le);
1485 ✗ if (!value2) {
1486 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1487 ✗ value2 = 1;
1488 }
1489
1490 ✗ s->black_level[i] = value / (float)value2;
1491 } else {
1492 ✗ s->black_level[i] = ff_tget(&s->gb, type, s->le);
1493 }
1494 }
1495 ✗ for (int i = count; i < 4 && count > 0; i++)
1496 ✗ s->black_level[i] = s->black_level[count - 1];
1497 ✗ break;
1498 ✗ case DNG_WHITE_LEVEL:
1499 ✗ s->white_level = value;
1500 ✗ break;
1501 ✗ case TIFF_CFA_PATTERN_DIM:
1502 ✗ if (count != 2 || (ff_tget(&s->gb, type, s->le) != 2 &&
1503 ✗ ff_tget(&s->gb, type, s->le) != 2)) {
1504 ✗ av_log(s->avctx, AV_LOG_ERROR, "CFA Pattern dimensions are not 2x2\n");
1505 ✗ return AVERROR_INVALIDDATA;
1506 }
1507 ✗ break;
1508 ✗ case TIFF_CFA_PATTERN:
1509 ✗ s->is_bayer = 1;
1510 ✗ s->pattern[0] = ff_tget(&s->gb, type, s->le);
1511 ✗ s->pattern[1] = ff_tget(&s->gb, type, s->le);
1512 ✗ s->pattern[2] = ff_tget(&s->gb, type, s->le);
1513 ✗ s->pattern[3] = ff_tget(&s->gb, type, s->le);
1514 ✗ break;
1515 33 case TIFF_PHOTOMETRIC:
1516
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 33 switch (value) {
1517 33 case TIFF_PHOTOMETRIC_WHITE_IS_ZERO:
1518 case TIFF_PHOTOMETRIC_BLACK_IS_ZERO:
1519 case TIFF_PHOTOMETRIC_RGB:
1520 case TIFF_PHOTOMETRIC_PALETTE:
1521 case TIFF_PHOTOMETRIC_SEPARATED:
1522 case TIFF_PHOTOMETRIC_YCBCR:
1523 case TIFF_PHOTOMETRIC_CFA:
1524 case TIFF_PHOTOMETRIC_LINEAR_RAW: // Used by DNG images
1525 33 s->photometric = value;
1526 33 break;
1527 ✗ case TIFF_PHOTOMETRIC_ALPHA_MASK:
1528 case TIFF_PHOTOMETRIC_CIE_LAB:
1529 case TIFF_PHOTOMETRIC_ICC_LAB:
1530 case TIFF_PHOTOMETRIC_ITU_LAB:
1531 case TIFF_PHOTOMETRIC_LOG_L:
1532 case TIFF_PHOTOMETRIC_LOG_LUV:
1533 ✗ avpriv_report_missing_feature(s->avctx,
1534 "PhotometricInterpretation 0x%04X",
1535 value);
1536 ✗ return AVERROR_PATCHWELCOME;
1537 ✗ default:
1538 ✗ av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
1539 "unknown\n", value);
1540 ✗ return AVERROR_INVALIDDATA;
1541 }
1542 33 break;
1543 16 case TIFF_FILL_ORDER:
1544
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 16 if (value < 1 || value > 2) {
1545 ✗ av_log(s->avctx, AV_LOG_ERROR,
1546 "Unknown FillOrder value %d, trying default one\n", value);
1547 ✗ value = 1;
1548 }
1549 16 s->fill_order = value - 1;
1550 16 break;
1551 ✗ case TIFF_PAL: {
1552 GetByteContext pal_gb[3];
1553 ✗ off = type_sizes[type];
1554 ✗ if (count / 3 > 256 ||
1555 ✗ bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
1556 ✗ return AVERROR_INVALIDDATA;
1557
1558 ✗ pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
1559 ✗ bytestream2_skip(&pal_gb[1], count / 3 * off);
1560 ✗ bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
1561
1562 ✗ off = (type_sizes[type] - 1) << 3;
1563 ✗ if (off > 31U) {
1564 ✗ av_log(s->avctx, AV_LOG_ERROR, "palette shift %d is out of range\n", off);
1565 ✗ return AVERROR_INVALIDDATA;
1566 }
1567
1568 ✗ for (i = 0; i < count / 3; i++) {
1569 ✗ uint32_t p = 0xFF000000;
1570 ✗ p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
1571 ✗ p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
1572 ✗ p |= ff_tget(&pal_gb[2], type, s->le) >> off;
1573 ✗ s->palette[i] = p;
1574 }
1575 ✗ s->palette_is_set = 1;
1576 ✗ break;
1577 }
1578 18 case TIFF_PLANAR:
1579 18 s->planar = value == 2;
1580 18 break;
1581 ✗ case TIFF_YCBCR_SUBSAMPLING:
1582 ✗ if (count != 2) {
1583 ✗ av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n");
1584 ✗ return AVERROR_INVALIDDATA;
1585 }
1586 ✗ for (i = 0; i < count; i++) {
1587 ✗ s->subsampling[i] = ff_tget(&s->gb, type, s->le);
1588 ✗ if (s->subsampling[i] <= 0) {
1589 ✗ av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]);
1590 ✗ s->subsampling[i] = 1;
1591 ✗ return AVERROR_INVALIDDATA;
1592 }
1593 }
1594 ✗ break;
1595 ✗ case TIFF_T4OPTIONS:
1596 ✗ if (s->compr == TIFF_G3) {
1597 ✗ if (value > INT_MAX)
1598 ✗ return AVERROR_INVALIDDATA;
1599 ✗ s->fax_opts = value;
1600 }
1601 ✗ break;
1602 ✗ case TIFF_T6OPTIONS:
1603 ✗ if (s->compr == TIFF_G4) {
1604 ✗ if (value > INT_MAX)
1605 ✗ return AVERROR_INVALIDDATA;
1606 ✗ s->fax_opts = value;
1607 }
1608 ✗ break;
1609 #define ADD_METADATA(count, name, sep)\
1610 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
1611 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
1612 goto end;\
1613 }
1614 ✗ case TIFF_MODEL_PIXEL_SCALE:
1615 ✗ ADD_METADATA(count, "ModelPixelScaleTag", NULL);
1616 ✗ break;
1617 ✗ case TIFF_MODEL_TRANSFORMATION:
1618 ✗ ADD_METADATA(count, "ModelTransformationTag", NULL);
1619 ✗ break;
1620 ✗ case TIFF_MODEL_TIEPOINT:
1621 ✗ ADD_METADATA(count, "ModelTiepointTag", NULL);
1622 ✗ break;
1623 ✗ case TIFF_GEO_KEY_DIRECTORY:
1624 ✗ if (s->geotag_count) {
1625 ✗ avpriv_request_sample(s->avctx, "Multiple geo key directories");
1626 ✗ return AVERROR_INVALIDDATA;
1627 }
1628 ✗ ADD_METADATA(1, "GeoTIFF_Version", NULL);
1629 ✗ ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
1630 ✗ s->geotag_count = ff_tget_short(&s->gb, s->le);
1631 ✗ if (s->geotag_count > count / 4 - 1) {
1632 ✗ s->geotag_count = count / 4 - 1;
1633 ✗ av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
1634 }
1635 ✗ if ( bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4
1636 ✗ || s->geotag_count == 0) {
1637 ✗ s->geotag_count = 0;
1638 ✗ return -1;
1639 }
1640 ✗ s->geotags = av_calloc(s->geotag_count, sizeof(*s->geotags));
1641 ✗ if (!s->geotags) {
1642 ✗ av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1643 ✗ s->geotag_count = 0;
1644 ✗ goto end;
1645 }
1646 ✗ for (i = 0; i < s->geotag_count; i++) {
1647 unsigned val;
1648 ✗ s->geotags[i].key = ff_tget_short(&s->gb, s->le);
1649 ✗ s->geotags[i].type = ff_tget_short(&s->gb, s->le);
1650 ✗ s->geotags[i].count = ff_tget_short(&s->gb, s->le);
1651 ✗ val = ff_tget_short(&s->gb, s->le);
1652
1653 ✗ if (!s->geotags[i].type) {
1654 ✗ const char *str = get_geokey_val(s->geotags[i].key, val);
1655
1656 ✗ s->geotags[i].val = str ? av_strdup(str) : av_asprintf("Unknown-%u", val);
1657 ✗ if (!s->geotags[i].val)
1658 ✗ return AVERROR(ENOMEM);
1659 } else
1660 ✗ s->geotags[i].offset = val;
1661 }
1662 ✗ break;
1663 ✗ case TIFF_GEO_DOUBLE_PARAMS:
1664 ✗ if (count >= INT_MAX / sizeof(int64_t))
1665 ✗ return AVERROR_INVALIDDATA;
1666 ✗ if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
1667 ✗ return AVERROR_INVALIDDATA;
1668 ✗ dp = av_malloc_array(count, sizeof(double));
1669 ✗ if (!dp) {
1670 ✗ av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1671 ✗ goto end;
1672 }
1673 ✗ for (i = 0; i < count; i++)
1674 ✗ dp[i] = ff_tget_double(&s->gb, s->le);
1675 ✗ for (i = 0; i < s->geotag_count; i++) {
1676 ✗ if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
1677 ✗ if (s->geotags[i].count == 0
1678 ✗ || s->geotags[i].offset + s->geotags[i].count > count) {
1679 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1680 ✗ } else if (s->geotags[i].val) {
1681 ✗ av_log(s->avctx, AV_LOG_WARNING, "Duplicate GeoTIFF key %d\n", s->geotags[i].key);
1682 } else {
1683 ✗ char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
1684 ✗ if (!ap) {
1685 ✗ av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1686 ✗ av_freep(&dp);
1687 ✗ return AVERROR(ENOMEM);
1688 }
1689 ✗ s->geotags[i].val = ap;
1690 }
1691 }
1692 }
1693 ✗ av_freep(&dp);
1694 ✗ break;
1695 ✗ case TIFF_GEO_ASCII_PARAMS:
1696 ✗ pos = bytestream2_tell(&s->gb);
1697 ✗ for (i = 0; i < s->geotag_count; i++) {
1698 ✗ if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
1699 ✗ if (s->geotags[i].count == 0
1700 ✗ || s->geotags[i].offset + s->geotags[i].count > count) {
1701 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1702 } else {
1703 char *ap;
1704
1705 ✗ bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
1706 ✗ if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
1707 ✗ return AVERROR_INVALIDDATA;
1708 ✗ if (s->geotags[i].val)
1709 ✗ return AVERROR_INVALIDDATA;
1710 ✗ ap = av_malloc(s->geotags[i].count);
1711 ✗ if (!ap) {
1712 ✗ av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1713 ✗ return AVERROR(ENOMEM);
1714 }
1715 ✗ bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
1716 ✗ ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
1717 ✗ s->geotags[i].val = ap;
1718 }
1719 }
1720 }
1721 ✗ break;
1722 ✗ case TIFF_ICC_PROFILE:
1723 ✗ gb_temp = s->gb;
1724 ✗ bytestream2_seek(&gb_temp, off, SEEK_SET);
1725
1726 ✗ if (bytestream2_get_bytes_left(&gb_temp) < count)
1727 ✗ return AVERROR_INVALIDDATA;
1728
1729 ✗ ret = ff_frame_new_side_data(s->avctx, frame, AV_FRAME_DATA_ICC_PROFILE, count, &sd);
1730 ✗ if (ret < 0)
1731 ✗ return ret;
1732 ✗ if (sd)
1733 ✗ bytestream2_get_bufferu(&gb_temp, sd->data, count);
1734 ✗ break;
1735 ✗ case TIFF_ARTIST:
1736 ✗ ADD_METADATA(count, "artist", NULL);
1737 ✗ break;
1738 ✗ case TIFF_COPYRIGHT:
1739 ✗ ADD_METADATA(count, "copyright", NULL);
1740 ✗ break;
1741 2 case TIFF_DATE:
1742
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 2 ADD_METADATA(count, "date", NULL);
1743 2 break;
1744 6 case TIFF_DOCUMENT_NAME:
1745
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 6 ADD_METADATA(count, "document_name", NULL);
1746 6 break;
1747 ✗ case TIFF_HOST_COMPUTER:
1748 ✗ ADD_METADATA(count, "computer", NULL);
1749 ✗ break;
1750 4 case TIFF_IMAGE_DESCRIPTION:
1751
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 4 ADD_METADATA(count, "description", NULL);
1752 4 break;
1753 ✗ case TIFF_MAKE:
1754 ✗ ADD_METADATA(count, "make", NULL);
1755 ✗ break;
1756 ✗ case TIFF_MODEL:
1757 ✗ ADD_METADATA(count, "model", NULL);
1758 ✗ break;
1759 ✗ case TIFF_PAGE_NAME:
1760 ✗ ADD_METADATA(count, "page_name", NULL);
1761 ✗ break;
1762 12 case TIFF_PAGE_NUMBER:
1763
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 12 ADD_METADATA(count, "page_number", " / ");
1764 // need to seek back to re-read the page number
1765 12 bytestream2_seek(&s->gb, -count * sizeof(uint16_t), SEEK_CUR);
1766 // read the page number
1767 12 s->cur_page = ff_tget_short(&s->gb, s->le);
1768 // get back to where we were before the previous seek
1769 12 bytestream2_seek(&s->gb, count * sizeof(uint16_t) - sizeof(uint16_t), SEEK_CUR);
1770 12 break;
1771 2 case TIFF_SOFTWARE_NAME:
1772
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 2 ADD_METADATA(count, "software", NULL);
1773 2 break;
1774 ✗ case DNG_VERSION:
1775 ✗ if (count == 4) {
1776 unsigned int ver[4];
1777 ✗ ver[0] = ff_tget(&s->gb, type, s->le);
1778 ✗ ver[1] = ff_tget(&s->gb, type, s->le);
1779 ✗ ver[2] = ff_tget(&s->gb, type, s->le);
1780 ✗ ver[3] = ff_tget(&s->gb, type, s->le);
1781
1782 ✗ av_log(s->avctx, AV_LOG_DEBUG, "DNG file, version %u.%u.%u.%u\n",
1783 ver[0], ver[1], ver[2], ver[3]);
1784
1785 ✗ tiff_set_type(s, TIFF_TYPE_DNG);
1786 }
1787 ✗ break;
1788 ✗ case DNG_ANALOG_BALANCE:
1789 ✗ if (type != TIFF_RATIONAL)
1790 ✗ break;
1791
1792 ✗ for (int i = 0; i < 3; i++) {
1793 ✗ value = ff_tget_long(&s->gb, s->le);
1794 ✗ value2 = ff_tget_long(&s->gb, s->le);
1795 ✗ if (!value2) {
1796 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1797 ✗ value2 = 1;
1798 }
1799
1800 ✗ s->analog_balance[i] = value / (float)value2;
1801 }
1802 ✗ break;
1803 ✗ case DNG_AS_SHOT_NEUTRAL:
1804 ✗ if (type != TIFF_RATIONAL)
1805 ✗ break;
1806
1807 ✗ for (int i = 0; i < 3; i++) {
1808 ✗ value = ff_tget_long(&s->gb, s->le);
1809 ✗ value2 = ff_tget_long(&s->gb, s->le);
1810 ✗ if (!value2) {
1811 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1812 ✗ value2 = 1;
1813 }
1814
1815 ✗ s->as_shot_neutral[i] = value / (float)value2;
1816 }
1817 ✗ break;
1818 ✗ case DNG_AS_SHOT_WHITE_XY:
1819 ✗ if (type != TIFF_RATIONAL)
1820 ✗ break;
1821
1822 ✗ for (int i = 0; i < 2; i++) {
1823 ✗ value = ff_tget_long(&s->gb, s->le);
1824 ✗ value2 = ff_tget_long(&s->gb, s->le);
1825 ✗ if (!value2) {
1826 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1827 ✗ value2 = 1;
1828 }
1829
1830 ✗ s->as_shot_white[i] = value / (float)value2;
1831 }
1832 ✗ s->as_shot_white[2] = 1.f - s->as_shot_white[0] - s->as_shot_white[1];
1833 ✗ for (int i = 0; i < 3; i++) {
1834 ✗ s->as_shot_white[i] /= d65_white[i];
1835 }
1836 ✗ break;
1837 ✗ case DNG_COLOR_MATRIX1:
1838 case DNG_COLOR_MATRIX2:
1839 ✗ for (int i = 0; i < 3; i++) {
1840 ✗ for (int j = 0; j < 3; j++) {
1841 ✗ int value = ff_tget_long(&s->gb, s->le);
1842 ✗ int value2 = ff_tget_long(&s->gb, s->le);
1843 ✗ if (!value2) {
1844 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1845 ✗ value2 = 1;
1846 }
1847 ✗ s->color_matrix[i][j] = value / (float)value2;
1848 }
1849 ✗ s->use_color_matrix = 1;
1850 }
1851 ✗ break;
1852 ✗ case DNG_CAMERA_CALIBRATION1:
1853 case DNG_CAMERA_CALIBRATION2:
1854 ✗ for (int i = 0; i < 3; i++) {
1855 ✗ for (int j = 0; j < 3; j++) {
1856 ✗ int value = ff_tget_long(&s->gb, s->le);
1857 ✗ int value2 = ff_tget_long(&s->gb, s->le);
1858 ✗ if (!value2) {
1859 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1860 ✗ value2 = 1;
1861 }
1862 ✗ s->camera_calibration[i][j] = value / (float)value2;
1863 }
1864 }
1865 ✗ break;
1866 ✗ case CINEMADNG_TIME_CODES:
1867 case CINEMADNG_FRAME_RATE:
1868 case CINEMADNG_T_STOP:
1869 case CINEMADNG_REEL_NAME:
1870 case CINEMADNG_CAMERA_LABEL:
1871 ✗ tiff_set_type(s, TIFF_TYPE_CINEMADNG);
1872 ✗ break;
1873 97 default:
1874
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 97 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1875 ✗ av_log(s->avctx, AV_LOG_ERROR,
1876 "Unknown or unsupported tag %d/0x%0X\n",
1877 tag, tag);
1878 ✗ return AVERROR_INVALIDDATA;
1879 }
1880 }
1881 97 end:
1882
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 519 if (s->bpp > 128U) {
1883 ✗ av_log(s->avctx, AV_LOG_ERROR,
1884 "This format is not supported (bpp=%d, %d components)\n",
1885 s->bpp, count);
1886 ✗ s->bpp = 0;
1887 ✗ return AVERROR_INVALIDDATA;
1888 }
1889 519 bytestream2_seek(&s->gb, start, SEEK_SET);
1890 519 return 0;
1891 }
1892
1893 static const float xyz2rgb[3][3] = {
1894 { 0.412453f, 0.357580f, 0.180423f },
1895 { 0.212671f, 0.715160f, 0.072169f },
1896 { 0.019334f, 0.119193f, 0.950227f },
1897 };
1898
1899 ✗ static void camera_xyz_coeff(TiffContext *s,
1900 float rgb2cam[3][4],
1901 double cam2xyz[4][3])
1902 {
1903 double cam2rgb[4][3], num;
1904 int i, j, k;
1905
1906 ✗ for (i = 0; i < 3; i++) {
1907 ✗ for (j = 0; j < 3; j++) {
1908 ✗ cam2rgb[i][j] = 0.;
1909 ✗ for (k = 0; k < 3; k++)
1910 ✗ cam2rgb[i][j] += cam2xyz[i][k] * xyz2rgb[k][j];
1911 }
1912 }
1913
1914 ✗ for (i = 0; i < 3; i++) {
1915 ✗ for (num = j = 0; j < 3; j++)
1916 ✗ num += cam2rgb[i][j];
1917 ✗ if (!num)
1918 ✗ num = 1;
1919 ✗ for (j = 0; j < 3; j++)
1920 ✗ cam2rgb[i][j] /= num;
1921 ✗ s->premultiply[i] = 1.f / num;
1922 }
1923 ✗ }
1924
1925 33 static int decode_frame(AVCodecContext *avctx, AVFrame *p,
1926 int *got_frame, AVPacket *avpkt)
1927 {
1928 33 TiffContext *const s = avctx->priv_data;
1929 33 unsigned off, last_off = 0;
1930 int le, ret, plane, planes;
1931 int i, j, entries, stride;
1932 unsigned soff, ssize;
1933 uint8_t *dst;
1934 GetByteContext stripsizes;
1935 GetByteContext stripdata;
1936 int retry_for_subifd, retry_for_page;
1937 int is_dng;
1938 int has_tile_bits, has_strip_bits;
1939
1940 33 bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1941
1942 // parse image header
1943
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 33 if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
1944 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
1945 ✗ return ret;
1946
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 33 } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1947 ✗ av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1948 ✗ return AVERROR_INVALIDDATA;
1949 }
1950 33 s->le = le;
1951 // TIFF_BPP is not a required tag and defaults to 1
1952
1953 33 s->tiff_type = TIFF_TYPE_TIFF;
1954 33 s->use_color_matrix = 0;
1955 33 again:
1956 33 s->is_thumbnail = 0;
1957 33 s->bppcount = s->bpp = 1;
1958 33 s->photometric = TIFF_PHOTOMETRIC_NONE;
1959 33 s->compr = TIFF_RAW;
1960 33 s->fill_order = 0;
1961 33 s->white_level = 0;
1962 33 s->is_bayer = 0;
1963 33 s->is_tiled = 0;
1964 33 s->is_jpeg = 0;
1965 33 s->cur_page = 0;
1966 33 s->last_tag = 0;
1967
1968
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 2162721 for (i = 0; i < 65536; i++)
1969 2162688 s->dng_lut[i] = i;
1970
1971
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 165 for (i = 0; i < FF_ARRAY_ELEMS(s->black_level); i++)
1972 132 s->black_level[i] = 0.f;
1973
1974
2/2
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 165 for (i = 0; i < FF_ARRAY_ELEMS(s->as_shot_neutral); i++)
1975 132 s->as_shot_neutral[i] = 0.f;
1976
1977
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 165 for (i = 0; i < FF_ARRAY_ELEMS(s->as_shot_white); i++)
1978 132 s->as_shot_white[i] = 1.f;
1979
1980
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 165 for (i = 0; i < FF_ARRAY_ELEMS(s->analog_balance); i++)
1981 132 s->analog_balance[i] = 1.f;
1982
1983
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 165 for (i = 0; i < FF_ARRAY_ELEMS(s->premultiply); i++)
1984 132 s->premultiply[i] = 1.f;
1985
1986
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 165 for (i = 0; i < 4; i++)
1987
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 660 for (j = 0; j < 4; j++)
1988
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 528 s->camera_calibration[i][j] = i == j;
1989
1990 33 free_geotags(s);
1991
1992 // Reset these offsets so we can tell if they were set this frame
1993 33 s->stripsizesoff = s->strippos = 0;
1994 /* parse image file directory */
1995 33 bytestream2_seek(&s->gb, off, SEEK_SET);
1996 33 entries = ff_tget_short(&s->gb, le);
1997
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 33 if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1998 ✗ return AVERROR_INVALIDDATA;
1999
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 552 for (i = 0; i < entries; i++) {
2000
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 519 if ((ret = tiff_decode_tag(s, p)) < 0)
2001 ✗ return ret;
2002 }
2003
2004
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 33 if (s->get_thumbnail && !s->is_thumbnail) {
2005 ✗ av_log(avctx, AV_LOG_INFO, "No embedded thumbnail present\n");
2006 ✗ return AVERROR_EOF;
2007 }
2008
2009 /** whether we should process this IFD's SubIFD */
2010
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 33 retry_for_subifd = s->sub_ifd && (s->get_subimage || (!s->get_thumbnail && s->is_thumbnail));
2011 /** whether we should process this multi-page IFD's next page */
2012
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 33 retry_for_page = s->get_page && s->cur_page + 1 < s->get_page; // get_page is 1-indexed
2013
2014
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 33 if (retry_for_page) {
2015 // set offset to the next IFD
2016 ✗ off = ff_tget_long(&s->gb, le);
2017
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✓ Branch 1 taken 33 times.
 33 } else if (retry_for_subifd) {
2018 // set offset to the SubIFD
2019 ✗ off = s->sub_ifd;
2020 }
2021
2022
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 33 if (retry_for_subifd || retry_for_page) {
2023 ✗ if (!off) {
2024 ✗ av_log(avctx, AV_LOG_ERROR, "Requested entry not found\n");
2025 ✗ return AVERROR_INVALIDDATA;
2026 }
2027 ✗ if (off <= last_off) {
2028 ✗ avpriv_request_sample(s->avctx, "non increasing IFD offset");
2029 ✗ return AVERROR_INVALIDDATA;
2030 }
2031 ✗ last_off = off;
2032 ✗ if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
2033 ✗ av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
2034 ✗ return AVERROR_INVALIDDATA;
2035 }
2036 ✗ s->sub_ifd = 0;
2037 ✗ goto again;
2038 }
2039
2040 /* At this point we've decided on which (Sub)IFD to process */
2041
2042
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 33 is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
2043
2044
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 33 for (i = 0; i<s->geotag_count; i++) {
2045 ✗ const char *keyname = get_geokey_name(s->geotags[i].key);
2046 ✗ if (!keyname) {
2047 ✗ av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
2048 ✗ continue;
2049 }
2050 ✗ if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
2051 ✗ av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
2052 ✗ continue;
2053 }
2054 ✗ ret = av_dict_set(&p->metadata, keyname, s->geotags[i].val, AV_DICT_DONT_STRDUP_VAL);
2055 ✗ s->geotags[i].val = NULL;
2056 ✗ if (ret<0) {
2057 ✗ av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
2058 ✗ return ret;
2059 }
2060 }
2061
2062
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 33 if (is_dng) {
2063 double cam2xyz[4][3];
2064 float cmatrix[3][4];
2065 ✗ float pmin = FLT_MAX;
2066 int bps;
2067
2068 ✗ for (i = 0; i < 3; i++) {
2069 ✗ for (j = 0; j < 3; j++)
2070 ✗ s->camera_calibration[i][j] *= s->analog_balance[i];
2071 }
2072
2073 ✗ if (!s->use_color_matrix) {
2074 ✗ for (i = 0; i < 3; i++) {
2075 ✗ if (s->camera_calibration[i][i])
2076 ✗ s->premultiply[i] /= s->camera_calibration[i][i];
2077 }
2078 } else {
2079 ✗ for (int c = 0; c < 3; c++) {
2080 ✗ for (i = 0; i < 3; i++) {
2081 ✗ cam2xyz[c][i] = 0.;
2082 ✗ for (j = 0; j < 3; j++)
2083 ✗ cam2xyz[c][i] += s->camera_calibration[c][j] * s->color_matrix[j][i] * s->as_shot_white[i];
2084 }
2085 }
2086
2087 ✗ camera_xyz_coeff(s, cmatrix, cam2xyz);
2088 }
2089
2090 ✗ for (int c = 0; c < 3; c++)
2091 ✗ pmin = fminf(pmin, s->premultiply[c]);
2092
2093 ✗ for (int c = 0; c < 3; c++)
2094 ✗ s->premultiply[c] /= pmin;
2095
2096 ✗ if (s->bpp % s->bppcount)
2097 ✗ return AVERROR_INVALIDDATA;
2098 ✗ bps = s->bpp / s->bppcount;
2099 ✗ if (bps < 8 || bps > 32)
2100 ✗ return AVERROR_INVALIDDATA;
2101
2102 ✗ if (s->white_level == 0)
2103 ✗ s->white_level = (1LL << bps) - 1; /* Default value as per the spec */
2104
2105 ✗ if (s->white_level <= s->black_level[0]) {
2106 ✗ av_log(avctx, AV_LOG_ERROR, "BlackLevel (%g) must be less than WhiteLevel (%"PRId32")\n",
2107 ✗ s->black_level[0], s->white_level);
2108 ✗ return AVERROR_INVALIDDATA;
2109 }
2110
2111 ✗ if (s->planar)
2112 ✗ return AVERROR_PATCHWELCOME;
2113 }
2114
2115
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 33 if (!s->is_tiled && !s->strippos && !s->stripoff) {
2116 ✗ av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
2117 ✗ return AVERROR_INVALIDDATA;
2118 }
2119
2120
5/10
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 33 has_tile_bits = s->is_tiled || s->tile_byte_counts_offset || s->tile_offsets_offset || s->tile_width || s->tile_length;
2121
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 33 has_strip_bits = s->strippos || s->strips || s->stripoff || s->rps || s->sot || s->sstype || s->stripsize || s->stripsizesoff;
2122
2123
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 33 if (has_tile_bits && has_strip_bits) {
2124 ✗ int tiled_dng = s->is_tiled && is_dng;
2125 ✗ av_log(avctx, tiled_dng ? AV_LOG_WARNING : AV_LOG_ERROR, "Tiled TIFF is not allowed to strip\n");
2126 ✗ if (!tiled_dng)
2127 ✗ return AVERROR_INVALIDDATA;
2128 }
2129
2130 /* now we have the data and may start decoding */
2131
2/2
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✓ Branch 2 taken 22 times.
 33 if ((ret = init_image(s, p)) <= 0)
2132 11 return ret;
2133
2134
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 22 if (!s->is_tiled || has_strip_bits) {
2135
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 22 if (s->strips == 1 && !s->stripsize) {
2136 ✗ av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
2137 ✗ s->stripsize = avpkt->size - s->stripoff;
2138 }
2139
2140
2/2
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 22 if (s->stripsizesoff) {
2141
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 15 if (s->stripsizesoff >= (unsigned)avpkt->size)
2142 ✗ return AVERROR_INVALIDDATA;
2143 15 bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
2144 15 avpkt->size - s->stripsizesoff);
2145 }
2146
2/2
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 22 if (s->strippos) {
2147
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 15 if (s->strippos >= (unsigned)avpkt->size)
2148 ✗ return AVERROR_INVALIDDATA;
2149 15 bytestream2_init(&stripdata, avpkt->data + s->strippos,
2150 15 avpkt->size - s->strippos);
2151 }
2152
2153
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 22 if (s->rps <= 0 || s->rps % s->subsampling[1]) {
2154 ✗ av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
2155 ✗ return AVERROR_INVALIDDATA;
2156 }
2157 }
2158
2159
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✗ Branch 1 not taken.
 22 if (s->photometric == TIFF_PHOTOMETRIC_LINEAR_RAW ||
2160
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✓ Branch 1 taken 22 times.
 22 s->photometric == TIFF_PHOTOMETRIC_CFA) {
2161 ✗ p->color_trc = AVCOL_TRC_LINEAR;
2162
1/2
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✓ Branch 1 taken 22 times.
 22 } else if (s->photometric == TIFF_PHOTOMETRIC_BLACK_IS_ZERO) {
2163 ✗ p->color_trc = AVCOL_TRC_GAMMA22;
2164 }
2165
2166 /* Handle DNG images with JPEG-compressed tiles */
2167
2168
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 22 if (is_dng && s->is_tiled) {
2169 ✗ if (!s->is_jpeg) {
2170 ✗ avpriv_report_missing_feature(avctx, "DNG uncompressed tiled images");
2171 ✗ return AVERROR_PATCHWELCOME;
2172 ✗ } else if (!s->is_bayer) {
2173 ✗ avpriv_report_missing_feature(avctx, "DNG JPG-compressed tiled non-bayer-encoded images");
2174 ✗ return AVERROR_PATCHWELCOME;
2175 } else {
2176 ✗ if ((ret = dng_decode_tiles(avctx, p, avpkt)) > 0)
2177 ✗ *got_frame = 1;
2178 ✗ return ret;
2179 }
2180 }
2181
2182 /* Handle TIFF images and DNG images with uncompressed strips (non-tiled) */
2183
2184
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 22 planes = s->planar ? s->bppcount : 1;
2185
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 44 for (plane = 0; plane < planes; plane++) {
2186 22 uint8_t *five_planes = NULL;
2187 22 int remaining = avpkt->size;
2188 int decoded_height;
2189 22 stride = p->linesize[plane];
2190 22 dst = p->data[plane];
2191
1/2
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 22 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2192 ✗ s->avctx->pix_fmt == AV_PIX_FMT_RGBA) {
2193 ✗ stride = stride * 5 / 4;
2194 ✗ five_planes =
2195 ✗ dst = av_malloc(stride * s->height);
2196 ✗ if (!dst)
2197 ✗ return AVERROR(ENOMEM);
2198 }
2199
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 601 for (i = 0; i < s->height; i += s->rps) {
2200
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 579 if (i)
2201 557 dst += s->rps * stride;
2202
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 579 if (s->stripsizesoff)
2203 572 ssize = ff_tget(&stripsizes, s->sstype, le);
2204 else
2205 7 ssize = s->stripsize;
2206
2207
2/2
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 579 if (s->strippos)
2208 572 soff = ff_tget(&stripdata, s->sot, le);
2209 else
2210 7 soff = s->stripoff;
2211
2212
3/6
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 579 if (soff > avpkt->size || ssize > avpkt->size - soff || ssize > remaining) {
2213 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
2214 ✗ av_freep(&five_planes);
2215 ✗ return AVERROR_INVALIDDATA;
2216 }
2217 579 remaining -= ssize;
2218
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 579 if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i,
2219 579 FFMIN(s->rps, s->height - i))) < 0) {
2220 ✗ if (avctx->err_recognition & AV_EF_EXPLODE) {
2221 ✗ av_freep(&five_planes);
2222 ✗ return ret;
2223 }
2224 ✗ break;
2225 }
2226 }
2227 22 decoded_height = FFMIN(i, s->height);
2228
2229
1/2
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✓ Branch 1 taken 22 times.
 22 if (s->predictor == 2) {
2230 ✗ if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
2231 ✗ av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported");
2232 ✗ return AVERROR_PATCHWELCOME;
2233 }
2234 ✗ dst = five_planes ? five_planes : p->data[plane];
2235 ✗ soff = s->bpp >> 3;
2236 ✗ if (s->planar)
2237 ✗ soff = FFMAX(soff / s->bppcount, 1);
2238 ✗ ssize = s->width * soff;
2239 ✗ if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
2240 ✗ s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
2241 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GRAY16LE ||
2242 ✗ s->avctx->pix_fmt == AV_PIX_FMT_YA16LE ||
2243 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
2244 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
2245 ✗ for (i = 0; i < decoded_height; i++) {
2246 ✗ for (j = soff; j < ssize; j += 2)
2247 ✗ AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
2248 ✗ dst += stride;
2249 }
2250 ✗ } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
2251 ✗ s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
2252 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GRAY16BE ||
2253 ✗ s->avctx->pix_fmt == AV_PIX_FMT_YA16BE ||
2254 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
2255 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
2256 ✗ for (i = 0; i < decoded_height; i++) {
2257 ✗ for (j = soff; j < ssize; j += 2)
2258 ✗ AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
2259 ✗ dst += stride;
2260 }
2261 } else {
2262 ✗ for (i = 0; i < decoded_height; i++) {
2263 ✗ for (j = soff; j < ssize; j++)
2264 ✗ dst[j] += dst[j - soff];
2265 ✗ dst += stride;
2266 }
2267 }
2268 }
2269
2270 /* Floating point predictor
2271 TIFF Technical Note 3 http://chriscox.org/TIFFTN3d1.pdf */
2272
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 22 if (s->predictor == 3) {
2273 4 int channels = s->bppcount;
2274 int group_size;
2275 uint8_t *tmpbuf;
2276 int bpc;
2277
2278
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 4 dst = five_planes ? five_planes : p->data[plane];
2279 4 soff = s->bpp >> 3;
2280
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 4 if (s->planar) {
2281 ✗ soff = FFMAX(soff / s->bppcount, 1);
2282 ✗ channels = 1;
2283 }
2284 4 ssize = s->width * soff;
2285 4 bpc = FFMAX(soff / s->bppcount, 1); /* Bytes per component */
2286 4 group_size = s->width * channels;
2287
2288 4 tmpbuf = av_malloc(ssize);
2289
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 4 if (!tmpbuf) {
2290 ✗ av_free(five_planes);
2291 ✗ return AVERROR(ENOMEM);
2292 }
2293
2294
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 4 if (s->avctx->pix_fmt == AV_PIX_FMT_RGBF32LE ||
2295
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 2 s->avctx->pix_fmt == AV_PIX_FMT_RGBAF32LE) {
2296
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 36 for (i = 0; i < decoded_height; i++) {
2297 /* Copy first sample byte for each channel */
2298
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 144 for (j = 0; j < channels; j++)
2299 112 tmpbuf[j] = dst[j];
2300
2301 /* Decode horizontal differences */
2302
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 3504 for (j = channels; j < ssize; j++)
2303 3472 tmpbuf[j] = dst[j] + tmpbuf[j-channels];
2304
2305 /* Combine shuffled bytes from their separate groups. Each
2306 byte of every floating point value in a row of pixels is
2307 split and combined into separate groups. A group of all
2308 the sign/exponents bytes in the row and groups for each
2309 of the upper, mid, and lower mantissa bytes in the row. */
2310
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 928 for (j = 0; j < group_size; j++) {
2311
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 4480 for (int k = 0; k < bpc; k++) {
2312 3584 dst[bpc * j + k] = tmpbuf[(bpc - k - 1) * group_size + j];
2313 }
2314 }
2315 32 dst += stride;
2316 }
2317 ✗ } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGBF32BE ||
2318 ✗ s->avctx->pix_fmt == AV_PIX_FMT_RGBAF32BE) {
2319 /* Same as LE only the shuffle at the end is reversed */
2320 ✗ for (i = 0; i < decoded_height; i++) {
2321 ✗ for (j = 0; j < channels; j++)
2322 ✗ tmpbuf[j] = dst[j];
2323
2324 ✗ for (j = channels; j < ssize; j++)
2325 ✗ tmpbuf[j] = dst[j] + tmpbuf[j-channels];
2326
2327 ✗ for (j = 0; j < group_size; j++) {
2328 ✗ for (int k = 0; k < bpc; k++) {
2329 ✗ dst[bpc * j + k] = tmpbuf[k * group_size + j];
2330 }
2331 }
2332 ✗ dst += stride;
2333 }
2334 } else {
2335 ✗ av_log(s->avctx, AV_LOG_ERROR, "unsupported floating point pixel format\n");
2336 }
2337 4 av_free(tmpbuf);
2338 }
2339
2340
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 22 if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) {
2341
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 2 int c = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255);
2342 2 dst = p->data[plane];
2343
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 6498 for (i = 0; i < s->height; i++) {
2344
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 2085216 for (j = 0; j < stride; j++)
2345 2078720 dst[j] = c - dst[j];
2346 6496 dst += stride;
2347 }
2348 }
2349
2350
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 22 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2351 ✗ (s->avctx->pix_fmt == AV_PIX_FMT_RGB0 || s->avctx->pix_fmt == AV_PIX_FMT_RGBA)) {
2352 ✗ int x = s->avctx->pix_fmt == AV_PIX_FMT_RGB0 ? 4 : 5;
2353 ✗ uint8_t *src = five_planes ? five_planes : p->data[plane];
2354 ✗ dst = p->data[plane];
2355 ✗ for (i = 0; i < s->height; i++) {
2356 ✗ for (j = 0; j < s->width; j++) {
2357 ✗ int k = 255 - src[x * j + 3];
2358 ✗ int r = (255 - src[x * j ]) * k;
2359 ✗ int g = (255 - src[x * j + 1]) * k;
2360 ✗ int b = (255 - src[x * j + 2]) * k;
2361 ✗ dst[4 * j ] = r * 257 >> 16;
2362 ✗ dst[4 * j + 1] = g * 257 >> 16;
2363 ✗ dst[4 * j + 2] = b * 257 >> 16;
2364 ✗ dst[4 * j + 3] = s->avctx->pix_fmt == AV_PIX_FMT_RGBA ? src[x * j + 4] : 255;
2365 }
2366 ✗ src += stride;
2367 ✗ dst += p->linesize[plane];
2368 }
2369 ✗ av_freep(&five_planes);
2370
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 22 } else if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2371 ✗ s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) {
2372 ✗ dst = p->data[plane];
2373 ✗ for (i = 0; i < s->height; i++) {
2374 ✗ for (j = 0; j < s->width; j++) {
2375 ✗ uint64_t k = 65535 - AV_RB16(dst + 8 * j + 6);
2376 ✗ uint64_t r = (65535 - AV_RB16(dst + 8 * j )) * k;
2377 ✗ uint64_t g = (65535 - AV_RB16(dst + 8 * j + 2)) * k;
2378 ✗ uint64_t b = (65535 - AV_RB16(dst + 8 * j + 4)) * k;
2379 ✗ AV_WB16(dst + 8 * j , r * 65537 >> 32);
2380 ✗ AV_WB16(dst + 8 * j + 2, g * 65537 >> 32);
2381 ✗ AV_WB16(dst + 8 * j + 4, b * 65537 >> 32);
2382 ✗ AV_WB16(dst + 8 * j + 6, 65535);
2383 }
2384 ✗ dst += p->linesize[plane];
2385 }
2386 }
2387 }
2388
2389
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 22 if (s->planar && s->bppcount > 2) {
2390 ✗ FFSWAP(uint8_t*, p->data[0], p->data[2]);
2391 ✗ FFSWAP(int, p->linesize[0], p->linesize[2]);
2392 ✗ FFSWAP(uint8_t*, p->data[0], p->data[1]);
2393 ✗ FFSWAP(int, p->linesize[0], p->linesize[1]);
2394 }
2395
2396
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 22 if (s->is_bayer && s->white_level && s->bpp == 16 && !is_dng) {
2397 ✗ uint16_t *dst = (uint16_t *)p->data[0];
2398 ✗ for (i = 0; i < s->height; i++) {
2399 ✗ for (j = 0; j < s->width; j++)
2400 ✗ dst[j] = FFMIN((dst[j] / (float)s->white_level) * 65535, 65535);
2401 ✗ dst += stride / 2;
2402 }
2403 }
2404
2405 22 *got_frame = 1;
2406
2407 22 return avpkt->size;
2408 }
2409
2410 21 static av_cold int tiff_init(AVCodecContext *avctx)
2411 {
2412 21 TiffContext *s = avctx->priv_data;
2413 int ret;
2414
2415 21 s->width = 0;
2416 21 s->height = 0;
2417 21 s->subsampling[0] =
2418 21 s->subsampling[1] = 1;
2419 21 s->avctx = avctx;
2420 21 ff_lzw_decode_open(&s->lzw);
2421
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 21 if (!s->lzw)
2422 ✗ return AVERROR(ENOMEM);
2423 21 ff_ccitt_unpack_init();
2424
2425 /* Allocate JPEG frame */
2426 21 s->jpgframe = av_frame_alloc();
2427 21 s->jpkt = av_packet_alloc();
2428
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 21 if (!s->jpgframe || !s->jpkt)
2429 ✗ return AVERROR(ENOMEM);
2430
2431 /* Prepare everything needed for JPEG decoding */
2432 EXTERN const FFCodec ff_mjpeg_decoder;
2433 21 s->avctx_mjpeg = avcodec_alloc_context3(&ff_mjpeg_decoder.p);
2434
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 21 if (!s->avctx_mjpeg)
2435 ✗ return AVERROR(ENOMEM);
2436 21 s->avctx_mjpeg->flags = avctx->flags;
2437 21 s->avctx_mjpeg->flags2 = avctx->flags2;
2438 21 s->avctx_mjpeg->idct_algo = avctx->idct_algo;
2439 21 s->avctx_mjpeg->max_pixels = avctx->max_pixels;
2440 21 ret = avcodec_open2(s->avctx_mjpeg, NULL, NULL);
2441
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 21 if (ret < 0) {
2442 ✗ return ret;
2443 }
2444
2445 21 return 0;
2446 }
2447
2448 21 static av_cold int tiff_end(AVCodecContext *avctx)
2449 {
2450 21 TiffContext *const s = avctx->priv_data;
2451
2452 21 free_geotags(s);
2453
2454 21 ff_lzw_decode_close(&s->lzw);
2455 21 av_freep(&s->deinvert_buf);
2456 21 s->deinvert_buf_size = 0;
2457 21 av_freep(&s->yuv_line);
2458 21 s->yuv_line_size = 0;
2459 21 av_frame_free(&s->jpgframe);
2460 21 av_packet_free(&s->jpkt);
2461 21 avcodec_free_context(&s->avctx_mjpeg);
2462 21 return 0;
2463 }
2464
2465 #define OFFSET(x) offsetof(TiffContext, x)
2466 static const AVOption tiff_options[] = {
2467 { "subimage", "decode subimage instead if available", OFFSET(get_subimage), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM },
2468 { "thumbnail", "decode embedded thumbnail subimage instead if available", OFFSET(get_thumbnail), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM },
2469 { "page", "page number of multi-page image to decode (starting from 1)", OFFSET(get_page), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM },
2470 { NULL },
2471 };
2472
2473 static const AVClass tiff_decoder_class = {
2474 .class_name = "TIFF decoder",
2475 .item_name = av_default_item_name,
2476 .option = tiff_options,
2477 .version = LIBAVUTIL_VERSION_INT,
2478 };
2479
2480 const FFCodec ff_tiff_decoder = {
2481 .p.name = "tiff",
2482 CODEC_LONG_NAME("TIFF image"),
2483 .p.type = AVMEDIA_TYPE_VIDEO,
2484 .p.id = AV_CODEC_ID_TIFF,
2485 .priv_data_size = sizeof(TiffContext),
2486 .init = tiff_init,
2487 .close = tiff_end,
2488 FF_CODEC_DECODE_CB(decode_frame),
2489 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
2490 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP | FF_CODEC_CAP_ICC_PROFILES |
2491 FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
2492 .p.priv_class = &tiff_decoder_class,
2493 };
2494