FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/tiff.c
Date: 2024-07-26 21:54:09
Exec Total Coverage
Lines: 464 1543 30.1%
Functions: 14 31 45.2%
Branches: 301 1293 23.3%
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/avstring.h"
40 #include "libavutil/error.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/mem.h"
43 #include "libavutil/opt.h"
44 #include "libavutil/reverse.h"
45 #include "avcodec.h"
46 #include "bytestream.h"
47 #include "codec_internal.h"
48 #include "decode.h"
49 #include "faxcompr.h"
50 #include "lzw.h"
51 #include "tiff.h"
52 #include "tiff_common.h"
53 #include "tiff_data.h"
54 #include "mjpegdec.h"
55 #include "thread.h"
56 #include "get_bits.h"
57
58 typedef struct TiffContext {
59 AVClass *class;
60 AVCodecContext *avctx;
61 GetByteContext gb;
62
63 /* JPEG decoding for DNG */
64 AVCodecContext *avctx_mjpeg; // wrapper context for MJPEG
65 AVPacket *jpkt; // encoded JPEG tile
66 AVFrame *jpgframe; // decoded JPEG tile
67
68 int get_subimage;
69 uint16_t get_page;
70 int get_thumbnail;
71
72 enum TiffType tiff_type;
73 int width, height;
74 unsigned int bpp, bppcount;
75 uint32_t palette[256];
76 int palette_is_set;
77 int le;
78 enum TiffCompr compr;
79 enum TiffPhotometric photometric;
80 int planar;
81 int subsampling[2];
82 int fax_opts;
83 int predictor;
84 int fill_order;
85 uint32_t res[4];
86 int is_thumbnail;
87 unsigned last_tag;
88
89 int is_bayer;
90 int use_color_matrix;
91 uint8_t pattern[4];
92
93 float analog_balance[4];
94 float as_shot_neutral[4];
95 float as_shot_white[4];
96 float color_matrix[3][4];
97 float camera_calibration[4][4];
98 float premultiply[4];
99 float black_level[4];
100
101 unsigned white_level;
102 uint16_t dng_lut[65536];
103
104 uint32_t sub_ifd;
105 uint16_t cur_page;
106
107 int strips, rps, sstype;
108 int sot;
109 int stripsizesoff, stripsize, stripoff, strippos;
110 LZWState *lzw;
111
112 /* Tile support */
113 int is_tiled;
114 int tile_byte_counts_offset, tile_offsets_offset;
115 int tile_width, tile_length;
116
117 int is_jpeg;
118
119 uint8_t *deinvert_buf;
120 int deinvert_buf_size;
121 uint8_t *yuv_line;
122 unsigned int yuv_line_size;
123
124 int geotag_count;
125 TiffGeoTag *geotags;
126 } TiffContext;
127
128 static const float d65_white[3] = { 0.950456f, 1.f, 1.088754f };
129
130 ✗ static void tiff_set_type(TiffContext *s, enum TiffType tiff_type) {
131 ✗ if (s->tiff_type < tiff_type) // Prioritize higher-valued entries
132 ✗ s->tiff_type = tiff_type;
133 ✗ }
134
135 54 static void free_geotags(TiffContext *const s)
136 {
137
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 54 for (int i = 0; i < s->geotag_count; i++)
138 ✗ av_freep(&s->geotags[i].val);
139 54 av_freep(&s->geotags);
140 54 s->geotag_count = 0;
141 54 }
142
143 ✗ static const char *get_geokey_name(int key)
144 {
145 #define RET_GEOKEY_STR(TYPE, array)\
146 if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
147 key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(tiff_##array##_name_type_map))\
148 return tiff_##array##_name_type_string + tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].offset;
149
150 ✗ RET_GEOKEY_STR(VERT, vert);
151 ✗ RET_GEOKEY_STR(PROJ, proj);
152 ✗ RET_GEOKEY_STR(GEOG, geog);
153 ✗ RET_GEOKEY_STR(CONF, conf);
154
155 ✗ return NULL;
156 }
157
158 ✗ static int get_geokey_type(int key)
159 {
160 #define RET_GEOKEY_TYPE(TYPE, array)\
161 if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
162 key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(tiff_##array##_name_type_map))\
163 return tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].type;
164 ✗ RET_GEOKEY_TYPE(VERT, vert);
165 ✗ RET_GEOKEY_TYPE(PROJ, proj);
166 ✗ RET_GEOKEY_TYPE(GEOG, geog);
167 ✗ RET_GEOKEY_TYPE(CONF, conf);
168
169 ✗ return AVERROR_INVALIDDATA;
170 }
171
172 ✗ static int cmp_id_key(const void *id, const void *k)
173 {
174 ✗ return *(const int*)id - ((const TiffGeoTagKeyName*)k)->key;
175 }
176
177 ✗ static const char *search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
178 {
179 ✗ const TiffGeoTagKeyName *r = bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key);
180 ✗ if(r)
181 ✗ return r->name;
182
183 ✗ return NULL;
184 }
185
186 ✗ static const char *get_geokey_val(int key, uint16_t val)
187 {
188 ✗ if (val == TIFF_GEO_KEY_UNDEFINED)
189 ✗ return "undefined";
190 ✗ if (val == TIFF_GEO_KEY_USER_DEFINED)
191 ✗ return "User-Defined";
192
193 #define RET_GEOKEY_VAL(TYPE, array)\
194 if (val >= TIFF_##TYPE##_OFFSET &&\
195 val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(tiff_##array##_codes))\
196 return tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET];
197
198 ✗ switch (key) {
199 ✗ case TIFF_GT_MODEL_TYPE_GEOKEY:
200 ✗ RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
201 ✗ break;
202 ✗ case TIFF_GT_RASTER_TYPE_GEOKEY:
203 ✗ RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
204 ✗ break;
205 ✗ case TIFF_GEOG_LINEAR_UNITS_GEOKEY:
206 case TIFF_PROJ_LINEAR_UNITS_GEOKEY:
207 case TIFF_VERTICAL_UNITS_GEOKEY:
208 ✗ RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
209 ✗ break;
210 ✗ case TIFF_GEOG_ANGULAR_UNITS_GEOKEY:
211 case TIFF_GEOG_AZIMUTH_UNITS_GEOKEY:
212 ✗ RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
213 ✗ break;
214 ✗ case TIFF_GEOGRAPHIC_TYPE_GEOKEY:
215 ✗ RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
216 ✗ RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
217 ✗ break;
218 ✗ case TIFF_GEOG_GEODETIC_DATUM_GEOKEY:
219 ✗ RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
220 ✗ RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
221 ✗ break;
222 ✗ case TIFF_GEOG_ELLIPSOID_GEOKEY:
223 ✗ RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
224 ✗ break;
225 ✗ case TIFF_GEOG_PRIME_MERIDIAN_GEOKEY:
226 ✗ RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
227 ✗ break;
228 ✗ case TIFF_PROJECTED_CS_TYPE_GEOKEY:
229 ✗ return search_keyval(tiff_proj_cs_type_codes, FF_ARRAY_ELEMS(tiff_proj_cs_type_codes), val);
230 ✗ case TIFF_PROJECTION_GEOKEY:
231 ✗ return search_keyval(tiff_projection_codes, FF_ARRAY_ELEMS(tiff_projection_codes), val);
232 ✗ case TIFF_PROJ_COORD_TRANS_GEOKEY:
233 ✗ RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
234 ✗ break;
235 ✗ case TIFF_VERTICAL_CS_TYPE_GEOKEY:
236 ✗ RET_GEOKEY_VAL(VERT_CS, vert_cs);
237 ✗ RET_GEOKEY_VAL(ORTHO_VERT_CS, ortho_vert_cs);
238 ✗ break;
239
240 }
241
242 ✗ return NULL;
243 }
244
245 ✗ static char *doubles2str(double *dp, int count, const char *sep)
246 {
247 int i;
248 char *ap, *ap0;
249 uint64_t component_len;
250 ✗ if (!sep) sep = ", ";
251 ✗ component_len = 24LL + strlen(sep);
252 ✗ if (count >= (INT_MAX - 1)/component_len)
253 ✗ return NULL;
254 ✗ ap = av_malloc(component_len * count + 1);
255 ✗ if (!ap)
256 ✗ return NULL;
257 ✗ ap0 = ap;
258 ✗ ap[0] = '\0';
259 ✗ for (i = 0; i < count; i++) {
260 ✗ unsigned l = snprintf(ap, component_len, "%.15g%s", dp[i], sep);
261 ✗ if(l >= component_len) {
262 ✗ av_free(ap0);
263 ✗ return NULL;
264 }
265 ✗ ap += l;
266 }
267 ✗ ap0[strlen(ap0) - strlen(sep)] = '\0';
268 ✗ return ap0;
269 }
270
271 26 static int add_metadata(int count, int type,
272 const char *name, const char *sep, TiffContext *s, AVFrame *frame)
273 {
274
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 26 switch(type) {
275 ✗ case TIFF_DOUBLE: return ff_tadd_doubles_metadata(count, name, sep, &s->gb, s->le, &frame->metadata);
276 12 case TIFF_SHORT : return ff_tadd_shorts_metadata(count, name, sep, &s->gb, s->le, 0, &frame->metadata);
277 14 case TIFF_STRING: return ff_tadd_string_metadata(count, name, &s->gb, s->le, &frame->metadata);
278 ✗ default : return AVERROR_INVALIDDATA;
279 };
280 }
281
282 /**
283 * Map stored raw sensor values into linear reference values (see: DNG Specification - Chapter 5)
284 */
285 ✗ static uint16_t av_always_inline dng_process_color16(uint16_t value,
286 const uint16_t *lut,
287 float black_level,
288 float scale_factor)
289 {
290 float value_norm;
291
292 // Lookup table lookup
293 ✗ value = lut[value];
294
295 // Black level subtraction
296 // Color scaling
297 ✗ value_norm = ((float)value - black_level) * scale_factor;
298
299 ✗ value = av_clip_uint16(lrintf(value_norm));
300
301 ✗ return value;
302 }
303
304 ✗ static uint16_t av_always_inline dng_process_color8(uint16_t value,
305 const uint16_t *lut,
306 float black_level,
307 float scale_factor)
308 {
309 ✗ return dng_process_color16(value, lut, black_level, scale_factor) >> 8;
310 }
311
312 ✗ static void av_always_inline dng_blit(TiffContext *s, uint8_t *dst, int dst_stride,
313 const uint8_t *src, int src_stride, int width, int height,
314 int is_single_comp, int is_u16, int odd_line)
315 {
316 float scale_factor[4];
317 int line, col;
318
319 ✗ if (s->is_bayer) {
320 ✗ for (int i = 0; i < 4; i++)
321 ✗ scale_factor[i] = s->premultiply[s->pattern[i]] * 65535.f / (s->white_level - s->black_level[i]);
322 } else {
323 ✗ for (int i = 0; i < 4; i++)
324 ✗ scale_factor[i] = s->premultiply[ i ] * 65535.f / (s->white_level - s->black_level[i]);
325 }
326
327 ✗ if (is_single_comp) {
328 ✗ if (!is_u16)
329 ✗ return; /* <= 8bpp unsupported */
330
331 /* Image is double the width and half the height we need, each row comprises 2 rows of the output
332 (split vertically in the middle). */
333 ✗ for (line = 0; line < height / 2; line++) {
334 ✗ uint16_t *dst_u16 = (uint16_t *)dst;
335 ✗ const uint16_t *src_u16 = (const uint16_t *)src;
336
337 /* Blit first half of input row row to initial row of output */
338 ✗ for (col = 0; col < width; col++)
339 ✗ *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level[col&1], scale_factor[col&1]);
340
341 /* Advance the destination pointer by a row (source pointer remains in the same place) */
342 ✗ dst += dst_stride * sizeof(uint16_t);
343 ✗ dst_u16 = (uint16_t *)dst;
344
345 /* Blit second half of input row row to next row of output */
346 ✗ for (col = 0; col < width; col++)
347 ✗ *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level[(col&1) + 2], scale_factor[(col&1) + 2]);
348
349 ✗ dst += dst_stride * sizeof(uint16_t);
350 ✗ src += src_stride * sizeof(uint16_t);
351 }
352 } else {
353 /* Input and output image are the same size and the MJpeg decoder has done per-component
354 deinterleaving, so blitting here is straightforward. */
355 ✗ if (is_u16) {
356 ✗ for (line = 0; line < height; line++) {
357 ✗ uint16_t *dst_u16 = (uint16_t *)dst;
358 ✗ const uint16_t *src_u16 = (const uint16_t *)src;
359
360 ✗ for (col = 0; col < width; col++)
361 ✗ *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut,
362 ✗ s->black_level[(col&1) + 2 * ((line&1) + odd_line)],
363 ✗ scale_factor[(col&1) + 2 * ((line&1) + odd_line)]);
364
365 ✗ dst += dst_stride * sizeof(uint16_t);
366 ✗ src += src_stride * sizeof(uint16_t);
367 }
368 } else {
369 ✗ for (line = 0; line < height; line++) {
370 ✗ uint8_t *dst_u8 = dst;
371 ✗ const uint8_t *src_u8 = src;
372
373 ✗ for (col = 0; col < width; col++)
374 ✗ *dst_u8++ = dng_process_color8(*src_u8++, s->dng_lut,
375 ✗ s->black_level[(col&1) + 2 * ((line&1) + odd_line)],
376 ✗ scale_factor[(col&1) + 2 * ((line&1) + odd_line)]);
377
378 ✗ dst += dst_stride;
379 ✗ src += src_stride;
380 }
381 }
382 }
383 }
384
385 36484 static void av_always_inline horizontal_fill(TiffContext *s,
386 unsigned int bpp, uint8_t* dst,
387 int usePtr, const uint8_t *src,
388 uint8_t c, int width, int offset)
389 {
390
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 36484 switch (bpp) {
391 ✗ case 1:
392 ✗ while (--width >= 0) {
393 ✗ dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
394 ✗ dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
395 ✗ dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
396 ✗ dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
397 ✗ dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
398 ✗ dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
399 ✗ dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
400 ✗ dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
401 }
402 ✗ break;
403 ✗ case 2:
404 ✗ while (--width >= 0) {
405 ✗ dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
406 ✗ dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
407 ✗ dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
408 ✗ dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
409 }
410 ✗ break;
411 ✗ case 4:
412 ✗ while (--width >= 0) {
413 ✗ dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
414 ✗ dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
415 }
416 ✗ break;
417 ✗ case 10:
418 case 12:
419 case 14: {
420 ✗ uint16_t *dst16 = (uint16_t *)dst;
421 ✗ int is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
422 ✗ uint8_t shift = is_dng ? 0 : 16 - bpp;
423 GetBitContext gb;
424
425 ✗ av_unused int ret = init_get_bits8(&gb, src, width);
426 av_assert1(ret >= 0);
427 ✗ for (int i = 0; i < s->width; i++) {
428 ✗ dst16[i] = get_bits(&gb, bpp) << shift;
429 }
430 }
431 ✗ break;
432 36484 default:
433
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 36484 if (usePtr) {
434 34369 memcpy(dst + offset, src, width);
435 } else {
436 2115 memset(dst + offset, c, width);
437 }
438 }
439 36484 }
440
441 18 static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
442 {
443 int i;
444
445 18 av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
446
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 18 if (!s->deinvert_buf)
447 ✗ return AVERROR(ENOMEM);
448
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 251137 for (i = 0; i < size; i++)
449 251119 s->deinvert_buf[i] = ff_reverse[src[i]];
450
451 18 return 0;
452 }
453
454 ✗ static void unpack_gray(TiffContext *s, AVFrame *p,
455 const uint8_t *src, int lnum, int width, int bpp)
456 {
457 GetBitContext gb;
458 ✗ uint16_t *dst = (uint16_t *)(p->data[0] + lnum * p->linesize[0]);
459
460 ✗ av_unused int ret = init_get_bits8(&gb, src, width);
461 av_assert1(ret >= 0);
462
463 ✗ for (int i = 0; i < s->width; i++) {
464 ✗ dst[i] = get_bits(&gb, bpp);
465 }
466 ✗ }
467
468 ✗ static void unpack_yuv(TiffContext *s, AVFrame *p,
469 const uint8_t *src, int lnum)
470 {
471 int i, j, k;
472 ✗ int w = (s->width - 1) / s->subsampling[0] + 1;
473 ✗ uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
474 ✗ uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
475 ✗ if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
476 ✗ for (i = 0; i < w; i++) {
477 ✗ for (j = 0; j < s->subsampling[1]; j++)
478 ✗ for (k = 0; k < s->subsampling[0]; k++)
479 ✗ p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
480 ✗ FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++;
481 ✗ *pu++ = *src++;
482 ✗ *pv++ = *src++;
483 }
484 }else{
485 ✗ for (i = 0; i < w; i++) {
486 ✗ for (j = 0; j < s->subsampling[1]; j++)
487 ✗ for (k = 0; k < s->subsampling[0]; k++)
488 ✗ p->data[0][(lnum + j) * p->linesize[0] +
489 ✗ i * s->subsampling[0] + k] = *src++;
490 ✗ *pu++ = *src++;
491 ✗ *pv++ = *src++;
492 }
493 }
494 ✗ }
495
496 #if CONFIG_ZLIB
497 2 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
498 int size)
499 {
500 2 z_stream zstream = { 0 };
501 int zret;
502
503 2 zstream.next_in = src;
504 2 zstream.avail_in = size;
505 2 zstream.next_out = dst;
506 2 zstream.avail_out = *len;
507 2 zret = inflateInit(&zstream);
508
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 2 if (zret != Z_OK) {
509 ✗ av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
510 ✗ return zret;
511 }
512 2 zret = inflate(&zstream, Z_SYNC_FLUSH);
513 2 inflateEnd(&zstream);
514 2 *len = zstream.total_out;
515
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 2 return zret == Z_STREAM_END ? Z_OK : zret;
516 }
517
518 2 static int tiff_unpack_zlib(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
519 const uint8_t *src, int size, int width, int lines,
520 int strip_start, int is_yuv)
521 {
522 uint8_t *zbuf;
523 unsigned long outlen;
524 int ret, line;
525 2 outlen = width * lines;
526 2 zbuf = av_malloc(outlen);
527
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 2 if (!zbuf)
528 ✗ return AVERROR(ENOMEM);
529
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 2 if (s->fill_order) {
530 ✗ if ((ret = deinvert_buffer(s, src, size)) < 0) {
531 ✗ av_free(zbuf);
532 ✗ return ret;
533 }
534 ✗ src = s->deinvert_buf;
535 }
536 2 ret = tiff_uncompress(zbuf, &outlen, src, size);
537
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 2 if (ret != Z_OK) {
538 ✗ av_log(s->avctx, AV_LOG_ERROR,
539 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
540 ✗ (unsigned long)width * lines, ret);
541 ✗ av_free(zbuf);
542 ✗ return AVERROR_UNKNOWN;
543 }
544 2 src = zbuf;
545
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 18 for (line = 0; line < lines; line++) {
546
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 16 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
547 ✗ horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
548 } else {
549 16 memcpy(dst, src, width);
550 }
551
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 16 if (is_yuv) {
552 ✗ unpack_yuv(s, p, dst, strip_start + line);
553 ✗ line += s->subsampling[1] - 1;
554 }
555 16 dst += stride;
556 16 src += width;
557 }
558 2 av_free(zbuf);
559 2 return 0;
560 }
561 #endif
562
563 #if CONFIG_LZMA
564 ✗ static int tiff_uncompress_lzma(uint8_t *dst, uint64_t *len, const uint8_t *src,
565 int size)
566 {
567 ✗ lzma_stream stream = LZMA_STREAM_INIT;
568 lzma_ret ret;
569
570 ✗ stream.next_in = src;
571 ✗ stream.avail_in = size;
572 ✗ stream.next_out = dst;
573 ✗ stream.avail_out = *len;
574 ✗ ret = lzma_stream_decoder(&stream, UINT64_MAX, 0);
575 ✗ if (ret != LZMA_OK) {
576 ✗ av_log(NULL, AV_LOG_ERROR, "LZMA init error: %d\n", ret);
577 ✗ return ret;
578 }
579 ✗ ret = lzma_code(&stream, LZMA_RUN);
580 ✗ lzma_end(&stream);
581 ✗ *len = stream.total_out;
582 ✗ return ret == LZMA_STREAM_END ? LZMA_OK : ret;
583 }
584
585 ✗ static int tiff_unpack_lzma(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
586 const uint8_t *src, int size, int width, int lines,
587 int strip_start, int is_yuv)
588 {
589 ✗ uint64_t outlen = width * (uint64_t)lines;
590 int ret, line;
591 ✗ uint8_t *buf = av_malloc(outlen);
592 ✗ if (!buf)
593 ✗ return AVERROR(ENOMEM);
594 ✗ if (s->fill_order) {
595 ✗ if ((ret = deinvert_buffer(s, src, size)) < 0) {
596 ✗ av_free(buf);
597 ✗ return ret;
598 }
599 ✗ src = s->deinvert_buf;
600 }
601 ✗ ret = tiff_uncompress_lzma(buf, &outlen, src, size);
602 ✗ if (ret != LZMA_OK) {
603 ✗ av_log(s->avctx, AV_LOG_ERROR,
604 "Uncompressing failed (%"PRIu64" of %"PRIu64") with error %d\n", outlen,
605 ✗ (uint64_t)width * lines, ret);
606 ✗ av_free(buf);
607 ✗ return AVERROR_UNKNOWN;
608 }
609 ✗ src = buf;
610 ✗ for (line = 0; line < lines; line++) {
611 ✗ if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
612 ✗ horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
613 } else {
614 ✗ memcpy(dst, src, width);
615 }
616 ✗ if (is_yuv) {
617 ✗ unpack_yuv(s, p, dst, strip_start + line);
618 ✗ line += s->subsampling[1] - 1;
619 }
620 ✗ dst += stride;
621 ✗ src += width;
622 }
623 ✗ av_free(buf);
624 ✗ return 0;
625 }
626 #endif
627
628 18 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
629 const uint8_t *src, int size, int width, int lines)
630 {
631 int line;
632 int ret;
633
634
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 18 if (s->fill_order) {
635
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 18 if ((ret = deinvert_buffer(s, src, size)) < 0)
636 ✗ return ret;
637 18 src = s->deinvert_buf;
638 }
639 18 ret = ff_ccitt_unpack(s->avctx, src, size, dst, lines, stride,
640 s->compr, s->fax_opts);
641
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 18 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
642 ✗ for (line = 0; line < lines; line++) {
643 ✗ horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
644 ✗ dst += stride;
645 }
646 18 return ret;
647 }
648
649 ✗ static int dng_decode_jpeg(AVCodecContext *avctx, AVFrame *frame,
650 int tile_byte_count, int dst_x, int dst_y, int w, int h)
651 {
652 ✗ TiffContext *s = avctx->priv_data;
653 uint8_t *dst_data, *src_data;
654 uint32_t dst_offset; /* offset from dst buffer in pixels */
655 int is_single_comp, is_u16, pixel_size;
656 int ret;
657
658 ✗ if (tile_byte_count < 0 || tile_byte_count > bytestream2_get_bytes_left(&s->gb))
659 ✗ return AVERROR_INVALIDDATA;
660
661 /* Prepare a packet and send to the MJPEG decoder */
662 ✗ av_packet_unref(s->jpkt);
663 ✗ s->jpkt->data = (uint8_t*)s->gb.buffer;
664 ✗ s->jpkt->size = tile_byte_count;
665
666 ✗ if (s->is_bayer) {
667 ✗ MJpegDecodeContext *mjpegdecctx = s->avctx_mjpeg->priv_data;
668 /* We have to set this information here, there is no way to know if a given JPEG is a DNG-embedded
669 image or not from its own data (and we need that information when decoding it). */
670 ✗ mjpegdecctx->bayer = 1;
671 }
672
673 ✗ ret = avcodec_send_packet(s->avctx_mjpeg, s->jpkt);
674 ✗ if (ret < 0) {
675 ✗ av_log(avctx, AV_LOG_ERROR, "Error submitting a packet for decoding\n");
676 ✗ return ret;
677 }
678
679 ✗ ret = avcodec_receive_frame(s->avctx_mjpeg, s->jpgframe);
680 ✗ if (ret < 0) {
681 ✗ av_log(avctx, AV_LOG_ERROR, "JPEG decoding error: %s.\n", av_err2str(ret));
682
683 /* Normally skip, error if explode */
684 ✗ if (avctx->err_recognition & AV_EF_EXPLODE)
685 ✗ return AVERROR_INVALIDDATA;
686 else
687 ✗ return 0;
688 }
689
690 ✗ is_u16 = (s->bpp > 8);
691
692 /* Copy the outputted tile's pixels from 'jpgframe' to 'frame' (final buffer) */
693
694 ✗ if (s->jpgframe->width != s->avctx_mjpeg->width ||
695 ✗ s->jpgframe->height != s->avctx_mjpeg->height ||
696 ✗ s->jpgframe->format != s->avctx_mjpeg->pix_fmt)
697 ✗ return AVERROR_INVALIDDATA;
698
699 /* See dng_blit for explanation */
700 ✗ if (s->avctx_mjpeg->width == w * 2 &&
701 ✗ s->avctx_mjpeg->height == h / 2 &&
702 ✗ s->avctx_mjpeg->pix_fmt == AV_PIX_FMT_GRAY16LE) {
703 ✗ is_single_comp = 1;
704 ✗ } else if (s->avctx_mjpeg->width >= w &&
705 ✗ s->avctx_mjpeg->height >= h &&
706 ✗ s->avctx_mjpeg->pix_fmt == (is_u16 ? AV_PIX_FMT_GRAY16 : AV_PIX_FMT_GRAY8)
707 ) {
708 ✗ is_single_comp = 0;
709 } else
710 ✗ return AVERROR_INVALIDDATA;
711
712 ✗ pixel_size = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
713
714 ✗ if (is_single_comp && !is_u16) {
715 ✗ av_log(s->avctx, AV_LOG_ERROR, "DNGs with bpp <= 8 and 1 component are unsupported\n");
716 ✗ av_frame_unref(s->jpgframe);
717 ✗ return AVERROR_PATCHWELCOME;
718 }
719
720 ✗ dst_offset = dst_x + frame->linesize[0] * dst_y / pixel_size;
721 ✗ dst_data = frame->data[0] + dst_offset * pixel_size;
722 ✗ src_data = s->jpgframe->data[0];
723
724 ✗ dng_blit(s,
725 dst_data,
726 ✗ frame->linesize[0] / pixel_size,
727 src_data,
728 ✗ s->jpgframe->linesize[0] / pixel_size,
729 w,
730 h,
731 is_single_comp,
732 is_u16, 0);
733
734 ✗ av_frame_unref(s->jpgframe);
735
736 ✗ return 0;
737 }
738
739 579 static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
740 const uint8_t *src, int size, int strip_start, int lines)
741 {
742 PutByteContext pb;
743 int c, line, pixels, code, ret;
744 579 const uint8_t *ssrc = src;
745 579 int width = ((s->width * s->bpp) + 7) >> 3;
746 579 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(p->format);
747 1176 int is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) &&
748
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 579 (desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
749 ✗ desc->nb_components >= 3;
750 int is_dng;
751
752
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 579 if (s->planar)
753 ✗ width /= s->bppcount;
754
755
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 579 if (size <= 0)
756 ✗ return AVERROR_INVALIDDATA;
757
758
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 579 if (is_yuv) {
759 ✗ int bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
760 ✗ s->subsampling[0] * s->subsampling[1] + 7) >> 3;
761 ✗ av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row);
762 ✗ if (s->yuv_line == NULL) {
763 ✗ av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
764 ✗ return AVERROR(ENOMEM);
765 }
766 ✗ dst = s->yuv_line;
767 ✗ stride = 0;
768
769 ✗ width = (s->width - 1) / s->subsampling[0] + 1;
770 ✗ width = width * s->subsampling[0] * s->subsampling[1] + 2*width;
771 ✗ av_assert0(width <= bytes_per_row);
772 ✗ av_assert0(s->bpp == 24);
773 }
774
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 579 if (s->is_bayer) {
775 ✗ av_assert0(width == (s->bpp * s->width + 7) >> 3);
776 }
777
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 579 av_assert0(!(s->is_bayer && is_yuv));
778
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 579 if (p->format == AV_PIX_FMT_GRAY12) {
779 ✗ av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, width);
780 ✗ if (s->yuv_line == NULL) {
781 ✗ av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
782 ✗ return AVERROR(ENOMEM);
783 }
784 ✗ dst = s->yuv_line;
785 ✗ stride = 0;
786 }
787
788
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 579 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
789 #if CONFIG_ZLIB
790 2 return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines,
791 strip_start, is_yuv);
792 #else
793 av_log(s->avctx, AV_LOG_ERROR,
794 "zlib support not enabled, "
795 "deflate compression not supported\n");
796 return AVERROR(ENOSYS);
797 #endif
798 }
799
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 577 if (s->compr == TIFF_LZMA) {
800 #if CONFIG_LZMA
801 ✗ return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
802 strip_start, is_yuv);
803 #else
804 av_log(s->avctx, AV_LOG_ERROR,
805 "LZMA support not enabled\n");
806 return AVERROR(ENOSYS);
807 #endif
808 }
809
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 577 if (s->compr == TIFF_LZW) {
810
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 2 if (s->fill_order) {
811 ✗ if ((ret = deinvert_buffer(s, src, size)) < 0)
812 ✗ return ret;
813 ✗ ssrc = src = s->deinvert_buf;
814 }
815
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 2 if (size > 1 && !src[0] && (src[1]&1)) {
816 ✗ av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
817 }
818
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 2 if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
819 ✗ av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
820 ✗ return ret;
821 }
822
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 18 for (line = 0; line < lines; line++) {
823 16 pixels = ff_lzw_decode(s->lzw, dst, width);
824
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 16 if (pixels < width) {
825 ✗ av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
826 pixels, width);
827 ✗ return AVERROR_INVALIDDATA;
828 }
829
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 16 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
830 ✗ horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
831
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 16 if (is_yuv) {
832 ✗ unpack_yuv(s, p, dst, strip_start + line);
833 ✗ line += s->subsampling[1] - 1;
834
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 16 } else if (p->format == AV_PIX_FMT_GRAY12) {
835 ✗ unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
836 }
837 16 dst += stride;
838 }
839 2 return 0;
840 }
841
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 575 if (s->compr == TIFF_CCITT_RLE ||
842
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 575 s->compr == TIFF_G3 ||
843
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 557 s->compr == TIFF_G4) {
844
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 18 if (is_yuv || p->format == AV_PIX_FMT_GRAY12)
845 ✗ return AVERROR_INVALIDDATA;
846
847 18 return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
848 }
849
850 557 bytestream2_init(&s->gb, src, size);
851
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 557 bytestream2_init_writer(&pb, dst, is_yuv ? s->yuv_line_size : (stride * lines));
852
853
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 557 is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
854
855 /* Decode JPEG-encoded DNGs with strips */
856
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 557 if (s->compr == TIFF_NEWJPEG && is_dng) {
857 ✗ if (s->strips > 1) {
858 ✗ av_log(s->avctx, AV_LOG_ERROR, "More than one DNG JPEG strips unsupported\n");
859 ✗ return AVERROR_PATCHWELCOME;
860 }
861 ✗ if (!s->is_bayer)
862 ✗ return AVERROR_PATCHWELCOME;
863 ✗ if ((ret = dng_decode_jpeg(s->avctx, p, s->stripsize, 0, 0, s->width, s->height)) < 0)
864 ✗ return ret;
865 ✗ return 0;
866 }
867
868
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 557 if (is_dng && stride == 0)
869 ✗ return AVERROR_INVALIDDATA;
870
871
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 4429 for (line = 0; line < lines; line++) {
872
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 3872 if (src - ssrc > size) {
873 ✗ av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
874 ✗ return AVERROR_INVALIDDATA;
875 }
876
877
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 3872 if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb))
878 break;
879 3872 bytestream2_seek_p(&pb, stride * line, SEEK_SET);
880
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 3872 switch (s->compr) {
881 128 case TIFF_RAW:
882
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 128 if (ssrc + size - src < width)
883 ✗ return AVERROR_INVALIDDATA;
884
885
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 128 if (!s->fill_order) {
886
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 128 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 || s->is_bayer),
887 dst, 1, src, 0, width, 0);
888 } else {
889 int i;
890 ✗ for (i = 0; i < width; i++)
891 ✗ dst[i] = ff_reverse[src[i]];
892 }
893
894 /* Color processing for DNG images with uncompressed strips (non-tiled) */
895
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 128 if (is_dng) {
896 int is_u16, pixel_size_bytes, pixel_size_bits, elements;
897
898 ✗ is_u16 = (s->bpp / s->bppcount > 8);
899 ✗ pixel_size_bits = (is_u16 ? 16 : 8);
900 ✗ pixel_size_bytes = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
901
902 ✗ elements = width / pixel_size_bytes * pixel_size_bits / s->bpp * s->bppcount; // need to account for [1, 16] bpp
903 ✗ av_assert0 (elements * pixel_size_bytes <= FFABS(stride));
904 ✗ dng_blit(s,
905 dst,
906 0, // no stride, only 1 line
907 dst,
908 0, // no stride, only 1 line
909 elements,
910 1,
911 0, // single-component variation is only preset in JPEG-encoded DNGs
912 is_u16,
913 ✗ (line + strip_start)&1);
914 }
915
916 128 src += width;
917 128 break;
918 3744 case TIFF_PACKBITS:
919
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 40100 for (pixels = 0; pixels < width;) {
920
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 36356 if (ssrc + size - src < 2) {
921 ✗ av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
922 ✗ return AVERROR_INVALIDDATA;
923 }
924
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 36356 code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
925
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 36356 if (code >= 0) {
926 34241 code++;
927
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928
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 34241 ssrc + size - src < code) {
929 ✗ av_log(s->avctx, AV_LOG_ERROR,
930 "Copy went out of bounds\n");
931 ✗ return AVERROR_INVALIDDATA;
932 }
933 34241 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
934 dst, 1, src, 0, code, pixels);
935 34241 src += code;
936 34241 pixels += code;
937
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 2115 } else if (code != -128) { // -127..-1
938 2115 code = (-code) + 1;
939
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 2115 if (pixels + code > width) {
940 ✗ av_log(s->avctx, AV_LOG_ERROR,
941 "Run went out of bounds\n");
942 ✗ return AVERROR_INVALIDDATA;
943 }
944 2115 c = *src++;
945 2115 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
946 dst, 0, NULL, c, code, pixels);
947 2115 pixels += code;
948 }
949 }
950
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 3744 if (s->fill_order) {
951 int i;
952 ✗ for (i = 0; i < width; i++)
953 ✗ dst[i] = ff_reverse[dst[i]];
954 }
955 3744 break;
956 }
957
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 3872 if (is_yuv) {
958 ✗ unpack_yuv(s, p, dst, strip_start + line);
959 ✗ line += s->subsampling[1] - 1;
960
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 3872 } else if (p->format == AV_PIX_FMT_GRAY12) {
961 ✗ unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
962 }
963 3872 dst += stride;
964 }
965 557 return 0;
966 }
967
968 ✗ static int dng_decode_tiles(AVCodecContext *avctx, AVFrame *frame,
969 const AVPacket *avpkt)
970 {
971 ✗ TiffContext *s = avctx->priv_data;
972 int tile_idx;
973 int tile_offset_offset, tile_offset;
974 int tile_byte_count_offset, tile_byte_count;
975 int tile_count_x, tile_count_y;
976 int tile_width, tile_length;
977 int has_width_leftover, has_height_leftover;
978 ✗ int tile_x = 0, tile_y = 0;
979 ✗ int pos_x = 0, pos_y = 0;
980 int ret;
981
982 ✗ if (s->tile_width <= 0 || s->tile_length <= 0)
983 ✗ return AVERROR_INVALIDDATA;
984
985 ✗ has_width_leftover = (s->width % s->tile_width != 0);
986 ✗ has_height_leftover = (s->height % s->tile_length != 0);
987
988 /* Calculate tile counts (round up) */
989 ✗ tile_count_x = (s->width + s->tile_width - 1) / s->tile_width;
990 ✗ tile_count_y = (s->height + s->tile_length - 1) / s->tile_length;
991
992 /* Iterate over the number of tiles */
993 ✗ for (tile_idx = 0; tile_idx < tile_count_x * tile_count_y; tile_idx++) {
994 ✗ tile_x = tile_idx % tile_count_x;
995 ✗ tile_y = tile_idx / tile_count_x;
996
997 ✗ if (has_width_leftover && tile_x == tile_count_x - 1) // If on the right-most tile
998 ✗ tile_width = s->width % s->tile_width;
999 else
1000 ✗ tile_width = s->tile_width;
1001
1002 ✗ if (has_height_leftover && tile_y == tile_count_y - 1) // If on the bottom-most tile
1003 ✗ tile_length = s->height % s->tile_length;
1004 else
1005 ✗ tile_length = s->tile_length;
1006
1007 /* Read tile offset */
1008 ✗ tile_offset_offset = s->tile_offsets_offset + tile_idx * sizeof(int);
1009 ✗ bytestream2_seek(&s->gb, tile_offset_offset, SEEK_SET);
1010 ✗ tile_offset = ff_tget_long(&s->gb, s->le);
1011
1012 /* Read tile byte size */
1013 ✗ tile_byte_count_offset = s->tile_byte_counts_offset + tile_idx * sizeof(int);
1014 ✗ bytestream2_seek(&s->gb, tile_byte_count_offset, SEEK_SET);
1015 ✗ tile_byte_count = ff_tget_long(&s->gb, s->le);
1016
1017 /* Seek to tile data */
1018 ✗ bytestream2_seek(&s->gb, tile_offset, SEEK_SET);
1019
1020 /* Decode JPEG tile and copy it in the reference frame */
1021 ✗ ret = dng_decode_jpeg(avctx, frame, tile_byte_count, pos_x, pos_y, tile_width, tile_length);
1022
1023 ✗ if (ret < 0)
1024 ✗ return ret;
1025
1026 /* Advance current positions */
1027 ✗ pos_x += tile_width;
1028 ✗ if (tile_x == tile_count_x - 1) { // If on the right edge
1029 ✗ pos_x = 0;
1030 ✗ pos_y += tile_length;
1031 }
1032 }
1033
1034 /* Frame is ready to be output */
1035 ✗ frame->pict_type = AV_PICTURE_TYPE_I;
1036 ✗ frame->flags |= AV_FRAME_FLAG_KEY;
1037
1038 ✗ return avpkt->size;
1039 }
1040
1041 33 static int init_image(TiffContext *s, AVFrame *frame)
1042 {
1043 int ret;
1044 33 int create_gray_palette = 0;
1045
1046 // make sure there is no aliasing in the following switch
1047
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 33 if (s->bpp > 128 || s->bppcount >= 10) {
1048 ✗ av_log(s->avctx, AV_LOG_ERROR,
1049 "Unsupported image parameters: bpp=%d, bppcount=%d\n",
1050 s->bpp, s->bppcount);
1051 ✗ return AVERROR_INVALIDDATA;
1052 }
1053
1054
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 33 switch (s->planar * 10000 + s->bpp * 10 + s->bppcount + s->is_bayer * 100000) {
1055 4 case 11:
1056
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 4 if (!s->palette_is_set) {
1057 4 s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
1058 4 break;
1059 }
1060 case 21:
1061 case 41:
1062 ✗ s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
1063 ✗ if (!s->palette_is_set) {
1064 ✗ create_gray_palette = 1;
1065 }
1066 ✗ break;
1067 ✗ case 81:
1068 ✗ s->avctx->pix_fmt = s->palette_is_set ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_GRAY8;
1069 ✗ break;
1070 ✗ case 121:
1071 ✗ s->avctx->pix_fmt = AV_PIX_FMT_GRAY12;
1072 ✗ break;
1073 ✗ case 100081:
1074 ✗ switch (AV_RL32(s->pattern)) {
1075 ✗ case 0x02010100:
1076 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB8;
1077 ✗ break;
1078 ✗ case 0x00010102:
1079 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR8;
1080 ✗ break;
1081 ✗ case 0x01000201:
1082 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG8;
1083 ✗ break;
1084 ✗ case 0x01020001:
1085 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG8;
1086 ✗ break;
1087 ✗ default:
1088 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1089 ✗ AV_RL32(s->pattern));
1090 ✗ return AVERROR_PATCHWELCOME;
1091 }
1092 ✗ break;
1093 ✗ case 100101:
1094 case 100121:
1095 case 100141:
1096 case 100161:
1097 ✗ switch (AV_RL32(s->pattern)) {
1098 ✗ case 0x02010100:
1099 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB16;
1100 ✗ break;
1101 ✗ case 0x00010102:
1102 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR16;
1103 ✗ break;
1104 ✗ case 0x01000201:
1105 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG16;
1106 ✗ break;
1107 ✗ case 0x01020001:
1108 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG16;
1109 ✗ break;
1110 ✗ default:
1111 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1112 ✗ AV_RL32(s->pattern));
1113 ✗ return AVERROR_PATCHWELCOME;
1114 }
1115 ✗ break;
1116 17 case 243:
1117
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 17 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1118 ✗ if (s->subsampling[0] == 1 && s->subsampling[1] == 1) {
1119 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV444P;
1120 ✗ } else if (s->subsampling[0] == 2 && s->subsampling[1] == 1) {
1121 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV422P;
1122 ✗ } else if (s->subsampling[0] == 4 && s->subsampling[1] == 1) {
1123 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV411P;
1124 ✗ } else if (s->subsampling[0] == 1 && s->subsampling[1] == 2) {
1125 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV440P;
1126 ✗ } else if (s->subsampling[0] == 2 && s->subsampling[1] == 2) {
1127 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV420P;
1128 ✗ } else if (s->subsampling[0] == 4 && s->subsampling[1] == 4) {
1129 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV410P;
1130 } else {
1131 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr subsampling\n");
1132 ✗ return AVERROR_PATCHWELCOME;
1133 }
1134 } else
1135 17 s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
1136 17 break;
1137 ✗ case 161:
1138 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
1139 ✗ break;
1140 ✗ case 162:
1141 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YA8;
1142 ✗ break;
1143 ✗ case 322:
1144 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_YA16LE : AV_PIX_FMT_YA16BE;
1145 ✗ break;
1146 ✗ case 324:
1147 ✗ s->avctx->pix_fmt = s->photometric == TIFF_PHOTOMETRIC_SEPARATED ? AV_PIX_FMT_RGB0 : AV_PIX_FMT_RGBA;
1148 ✗ break;
1149 ✗ case 405:
1150 ✗ if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED)
1151 ✗ s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
1152 else {
1153 ✗ av_log(s->avctx, AV_LOG_ERROR,
1154 "bpp=40 without PHOTOMETRIC_SEPARATED is unsupported\n");
1155 ✗ return AVERROR_PATCHWELCOME;
1156 }
1157 ✗ break;
1158 ✗ case 483:
1159 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
1160 ✗ break;
1161 ✗ case 644:
1162 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
1163 ✗ break;
1164 ✗ case 10243:
1165 ✗ s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
1166 ✗ break;
1167 ✗ case 10324:
1168 ✗ s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
1169 ✗ break;
1170 ✗ case 10483:
1171 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE;
1172 ✗ break;
1173 ✗ case 10644:
1174 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE;
1175 ✗ break;
1176 6 case 963:
1177
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 6 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBF32LE : AV_PIX_FMT_RGBF32BE;
1178 6 break;
1179 6 case 1284:
1180
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 6 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBAF32LE : AV_PIX_FMT_RGBAF32BE;
1181 6 break;
1182 ✗ case 10963:
1183 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRPF32LE : AV_PIX_FMT_GBRPF32BE;
1184 ✗ break;
1185 ✗ case 11284:
1186 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAPF32LE : AV_PIX_FMT_GBRAPF32BE;
1187 ✗ break;
1188 ✗ default:
1189 ✗ av_log(s->avctx, AV_LOG_ERROR,
1190 "This format is not supported (bpp=%d, bppcount=%d)\n",
1191 s->bpp, s->bppcount);
1192 ✗ return AVERROR_INVALIDDATA;
1193 }
1194
1195
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 33 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1196 ✗ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
1197 ✗ if((desc->flags & AV_PIX_FMT_FLAG_RGB) ||
1198 ✗ !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) ||
1199 ✗ desc->nb_components < 3) {
1200 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr variant\n");
1201 ✗ return AVERROR_INVALIDDATA;
1202 }
1203 }
1204
1205
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 33 if (s->width != s->avctx->width || s->height != s->avctx->height) {
1206 11 ret = ff_set_dimensions(s->avctx, s->width, s->height);
1207
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 11 if (ret < 0)
1208 ✗ return ret;
1209 }
1210
1211
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 33 if (s->avctx->skip_frame >= AVDISCARD_ALL)
1212 11 return 0;
1213
1214
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 22 if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
1215 ✗ return ret;
1216
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 22 if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
1217 ✗ if (!create_gray_palette)
1218 ✗ memcpy(frame->data[1], s->palette, sizeof(s->palette));
1219 else {
1220 /* make default grayscale pal */
1221 int i;
1222 ✗ uint32_t *pal = (uint32_t *)frame->data[1];
1223 ✗ for (i = 0; i < 1<<s->bpp; i++)
1224 ✗ pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
1225 }
1226 }
1227 22 return 1;
1228 }
1229
1230 42 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
1231 {
1232
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 42 int offset = tag == TIFF_YRES ? 2 : 0;
1233 42 s->res[offset++] = num;
1234 42 s->res[offset] = den;
1235
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 42 if (s->res[0] && s->res[1] && s->res[2] && s->res[3]) {
1236 33 uint64_t num = s->res[2] * (uint64_t)s->res[1];
1237 33 uint64_t den = s->res[0] * (uint64_t)s->res[3];
1238
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 33 if (num > INT64_MAX || den > INT64_MAX) {
1239 ✗ num = num >> 1;
1240 ✗ den = den >> 1;
1241 }
1242 33 av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den,
1243 num, den, INT32_MAX);
1244
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 33 if (!s->avctx->sample_aspect_ratio.den)
1245 ✗ s->avctx->sample_aspect_ratio = (AVRational) {0, 1};
1246 }
1247 42 }
1248
1249 519 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
1250 {
1251 AVFrameSideData *sd;
1252 GetByteContext gb_temp;
1253 519 unsigned tag, type, count, off, value = 0, value2 = 1; // value2 is a denominator so init. to 1
1254 int i, start;
1255 int pos;
1256 int ret;
1257 double *dp;
1258
1259 519 ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
1260
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 519 if (ret < 0) {
1261 ✗ goto end;
1262 }
1263
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 519 if (tag <= s->last_tag)
1264 ✗ return AVERROR_INVALIDDATA;
1265
1266 // We ignore TIFF_STRIP_SIZE as it is sometimes in the logic but wrong order around TIFF_STRIP_OFFS
1267
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 519 if (tag != TIFF_STRIP_SIZE)
1268 486 s->last_tag = tag;
1269
1270 519 off = bytestream2_tell(&s->gb);
1271
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 519 if (count == 1) {
1272
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 374 switch (type) {
1273 332 case TIFF_BYTE:
1274 case TIFF_SHORT:
1275 case TIFF_LONG:
1276 332 value = ff_tget(&s->gb, type, s->le);
1277 332 break;
1278 42 case TIFF_RATIONAL:
1279 42 value = ff_tget_long(&s->gb, s->le);
1280 42 value2 = ff_tget_long(&s->gb, s->le);
1281
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 42 if (!value2) {
1282 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator in rational\n");
1283 ✗ value2 = 1;
1284 }
1285
1286 42 break;
1287 ✗ case TIFF_STRING:
1288 ✗ if (count <= 4) {
1289 ✗ break;
1290 }
1291 default:
1292 ✗ value = UINT_MAX;
1293 }
1294 }
1295
1296
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 519 switch (tag) {
1297 15 case TIFF_SUBFILE:
1298 15 s->is_thumbnail = (value != 0);
1299 15 break;
1300 33 case TIFF_WIDTH:
1301
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 33 if (value > INT_MAX)
1302 ✗ return AVERROR_INVALIDDATA;
1303 33 s->width = value;
1304 33 break;
1305 33 case TIFF_HEIGHT:
1306
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 33 if (value > INT_MAX)
1307 ✗ return AVERROR_INVALIDDATA;
1308 33 s->height = value;
1309 33 break;
1310 33 case TIFF_BPP:
1311
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 33 if (count > 5 || count <= 0) {
1312 ✗ av_log(s->avctx, AV_LOG_ERROR,
1313 "This format is not supported (bpp=%d, %d components)\n",
1314 value, count);
1315 ✗ return AVERROR_INVALIDDATA;
1316 }
1317 33 s->bppcount = count;
1318
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 33 if (count == 1)
1319 4 s->bpp = value;
1320 else {
1321
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 29 switch (type) {
1322 29 case TIFF_BYTE:
1323 case TIFF_SHORT:
1324 case TIFF_LONG:
1325 29 s->bpp = 0;
1326
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 29 if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
1327 ✗ return AVERROR_INVALIDDATA;
1328
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 122 for (i = 0; i < count; i++)
1329 93 s->bpp += ff_tget(&s->gb, type, s->le);
1330 29 break;
1331 ✗ default:
1332 ✗ s->bpp = -1;
1333 }
1334 }
1335 33 break;
1336 33 case TIFF_SAMPLES_PER_PIXEL:
1337
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 33 if (count != 1) {
1338 ✗ av_log(s->avctx, AV_LOG_ERROR,
1339 "Samples per pixel requires a single value, many provided\n");
1340 ✗ return AVERROR_INVALIDDATA;
1341 }
1342
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 33 if (value > 5 || value <= 0) {
1343 ✗ av_log(s->avctx, AV_LOG_ERROR,
1344 "Invalid samples per pixel %d\n", value);
1345 ✗ return AVERROR_INVALIDDATA;
1346 }
1347
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 33 if (s->bppcount == 1)
1348 4 s->bpp *= value;
1349 33 s->bppcount = value;
1350 33 break;
1351 33 case TIFF_COMPR:
1352 33 s->compr = value;
1353 33 av_log(s->avctx, AV_LOG_DEBUG, "compression: %d\n", s->compr);
1354 33 s->predictor = 0;
1355
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 33 switch (s->compr) {
1356 25 case TIFF_RAW:
1357 case TIFF_PACKBITS:
1358 case TIFF_LZW:
1359 case TIFF_CCITT_RLE:
1360 25 break;
1361 4 case TIFF_G3:
1362 case TIFF_G4:
1363 4 s->fax_opts = 0;
1364 4 break;
1365 4 case TIFF_DEFLATE:
1366 case TIFF_ADOBE_DEFLATE:
1367 #if CONFIG_ZLIB
1368 4 break;
1369 #else
1370 av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
1371 return AVERROR(ENOSYS);
1372 #endif
1373 ✗ case TIFF_JPEG:
1374 case TIFF_NEWJPEG:
1375 ✗ s->is_jpeg = 1;
1376 ✗ break;
1377 ✗ case TIFF_LZMA:
1378 #if CONFIG_LZMA
1379 ✗ break;
1380 #else
1381 av_log(s->avctx, AV_LOG_ERROR, "LZMA not compiled in\n");
1382 return AVERROR(ENOSYS);
1383 #endif
1384 ✗ default:
1385 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
1386 ✗ s->compr);
1387 ✗ return AVERROR_INVALIDDATA;
1388 }
1389 33 break;
1390 33 case TIFF_ROWSPERSTRIP:
1391
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 33 if (!value || (type == TIFF_LONG && value == UINT_MAX))
1392 ✗ value = s->height;
1393 33 s->rps = FFMIN(value, s->height);
1394 33 break;
1395 33 case TIFF_STRIP_OFFS:
1396
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 33 if (count == 1) {
1397
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 14 if (value > INT_MAX) {
1398 ✗ av_log(s->avctx, AV_LOG_ERROR,
1399 "strippos %u too large\n", value);
1400 ✗ return AVERROR_INVALIDDATA;
1401 }
1402 14 s->strippos = 0;
1403 14 s->stripoff = value;
1404 } else
1405 19 s->strippos = off;
1406 33 s->strips = count;
1407
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 33 if (s->strips == s->bppcount)
1408 2 s->rps = s->height;
1409 33 s->sot = type;
1410 33 break;
1411 33 case TIFF_STRIP_SIZE:
1412
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 33 if (count == 1) {
1413
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 14 if (value > INT_MAX) {
1414 ✗ av_log(s->avctx, AV_LOG_ERROR,
1415 "stripsize %u too large\n", value);
1416 ✗ return AVERROR_INVALIDDATA;
1417 }
1418 14 s->stripsizesoff = 0;
1419 14 s->stripsize = value;
1420 14 s->strips = 1;
1421 } else {
1422 19 s->stripsizesoff = off;
1423 }
1424 33 s->strips = count;
1425 33 s->sstype = type;
1426 33 break;
1427 42 case TIFF_XRES:
1428 case TIFF_YRES:
1429 42 set_sar(s, tag, value, value2);
1430 42 break;
1431 ✗ case TIFF_TILE_OFFSETS:
1432 ✗ s->tile_offsets_offset = off;
1433 ✗ s->is_tiled = 1;
1434 ✗ break;
1435 ✗ case TIFF_TILE_BYTE_COUNTS:
1436 ✗ s->tile_byte_counts_offset = off;
1437 ✗ break;
1438 ✗ case TIFF_TILE_LENGTH:
1439 ✗ if (value > INT_MAX)
1440 ✗ return AVERROR_INVALIDDATA;
1441 ✗ s->tile_length = value;
1442 ✗ break;
1443 ✗ case TIFF_TILE_WIDTH:
1444 ✗ if (value > INT_MAX)
1445 ✗ return AVERROR_INVALIDDATA;
1446 ✗ s->tile_width = value;
1447 ✗ break;
1448 8 case TIFF_PREDICTOR:
1449
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 8 if (value > INT_MAX)
1450 ✗ return AVERROR_INVALIDDATA;
1451 8 s->predictor = value;
1452 8 break;
1453 ✗ case TIFF_SUB_IFDS:
1454 ✗ if (count == 1)
1455 ✗ s->sub_ifd = value;
1456 ✗ else if (count > 1)
1457 ✗ s->sub_ifd = ff_tget_long(&s->gb, s->le); /** Only get the first SubIFD */
1458 ✗ break;
1459 ✗ case TIFF_GRAY_RESPONSE_CURVE:
1460 case DNG_LINEARIZATION_TABLE:
1461 ✗ if (count < 1 || count > FF_ARRAY_ELEMS(s->dng_lut))
1462 ✗ return AVERROR_INVALIDDATA;
1463 ✗ for (int i = 0; i < count; i++)
1464 ✗ s->dng_lut[i] = ff_tget(&s->gb, type, s->le);
1465 ✗ s->white_level = s->dng_lut[count-1];
1466 ✗ break;
1467 ✗ case DNG_BLACK_LEVEL:
1468 ✗ if (count > FF_ARRAY_ELEMS(s->black_level))
1469 ✗ return AVERROR_INVALIDDATA;
1470 ✗ s->black_level[0] = value / (float)value2;
1471 ✗ for (int i = 0; i < count && count > 1; i++) {
1472 ✗ if (type == TIFF_RATIONAL) {
1473 ✗ value = ff_tget_long(&s->gb, s->le);
1474 ✗ value2 = ff_tget_long(&s->gb, s->le);
1475 ✗ if (!value2) {
1476 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1477 ✗ value2 = 1;
1478 }
1479
1480 ✗ s->black_level[i] = value / (float)value2;
1481 ✗ } else if (type == TIFF_SRATIONAL) {
1482 ✗ int value = ff_tget_long(&s->gb, s->le);
1483 ✗ int value2 = ff_tget_long(&s->gb, s->le);
1484 ✗ if (!value2) {
1485 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1486 ✗ value2 = 1;
1487 }
1488
1489 ✗ s->black_level[i] = value / (float)value2;
1490 } else {
1491 ✗ s->black_level[i] = ff_tget(&s->gb, type, s->le);
1492 }
1493 }
1494 ✗ for (int i = count; i < 4 && count > 0; i++)
1495 ✗ s->black_level[i] = s->black_level[count - 1];
1496 ✗ break;
1497 ✗ case DNG_WHITE_LEVEL:
1498 ✗ s->white_level = value;
1499 ✗ break;
1500 ✗ case TIFF_CFA_PATTERN_DIM:
1501 ✗ if (count != 2 || (ff_tget(&s->gb, type, s->le) != 2 &&
1502 ✗ ff_tget(&s->gb, type, s->le) != 2)) {
1503 ✗ av_log(s->avctx, AV_LOG_ERROR, "CFA Pattern dimensions are not 2x2\n");
1504 ✗ return AVERROR_INVALIDDATA;
1505 }
1506 ✗ break;
1507 ✗ case TIFF_CFA_PATTERN:
1508 ✗ s->is_bayer = 1;
1509 ✗ s->pattern[0] = ff_tget(&s->gb, type, s->le);
1510 ✗ s->pattern[1] = ff_tget(&s->gb, type, s->le);
1511 ✗ s->pattern[2] = ff_tget(&s->gb, type, s->le);
1512 ✗ s->pattern[3] = ff_tget(&s->gb, type, s->le);
1513 ✗ break;
1514
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 33 case TIFF_PHOTOMETRIC:
1515 switch (value) {
1516 33 case TIFF_PHOTOMETRIC_WHITE_IS_ZERO:
1517 case TIFF_PHOTOMETRIC_BLACK_IS_ZERO:
1518 case TIFF_PHOTOMETRIC_RGB:
1519 case TIFF_PHOTOMETRIC_PALETTE:
1520 case TIFF_PHOTOMETRIC_SEPARATED:
1521 case TIFF_PHOTOMETRIC_YCBCR:
1522 case TIFF_PHOTOMETRIC_CFA:
1523 case TIFF_PHOTOMETRIC_LINEAR_RAW: // Used by DNG images
1524 33 s->photometric = value;
1525 33 break;
1526 ✗ case TIFF_PHOTOMETRIC_ALPHA_MASK:
1527 case TIFF_PHOTOMETRIC_CIE_LAB:
1528 case TIFF_PHOTOMETRIC_ICC_LAB:
1529 case TIFF_PHOTOMETRIC_ITU_LAB:
1530 case TIFF_PHOTOMETRIC_LOG_L:
1531 case TIFF_PHOTOMETRIC_LOG_LUV:
1532 ✗ avpriv_report_missing_feature(s->avctx,
1533 "PhotometricInterpretation 0x%04X",
1534 value);
1535 ✗ return AVERROR_PATCHWELCOME;
1536 ✗ default:
1537 ✗ av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
1538 "unknown\n", value);
1539 ✗ return AVERROR_INVALIDDATA;
1540 }
1541 33 break;
1542 16 case TIFF_FILL_ORDER:
1543
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 16 if (value < 1 || value > 2) {
1544 ✗ av_log(s->avctx, AV_LOG_ERROR,
1545 "Unknown FillOrder value %d, trying default one\n", value);
1546 ✗ value = 1;
1547 }
1548 16 s->fill_order = value - 1;
1549 16 break;
1550 ✗ case TIFF_PAL: {
1551 GetByteContext pal_gb[3];
1552 ✗ off = type_sizes[type];
1553 ✗ if (count / 3 > 256 ||
1554 ✗ bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
1555 ✗ return AVERROR_INVALIDDATA;
1556
1557 ✗ pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
1558 ✗ bytestream2_skip(&pal_gb[1], count / 3 * off);
1559 ✗ bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
1560
1561 ✗ off = (type_sizes[type] - 1) << 3;
1562 ✗ if (off > 31U) {
1563 ✗ av_log(s->avctx, AV_LOG_ERROR, "palette shift %d is out of range\n", off);
1564 ✗ return AVERROR_INVALIDDATA;
1565 }
1566
1567 ✗ for (i = 0; i < count / 3; i++) {
1568 ✗ uint32_t p = 0xFF000000;
1569 ✗ p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
1570 ✗ p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
1571 ✗ p |= ff_tget(&pal_gb[2], type, s->le) >> off;
1572 ✗ s->palette[i] = p;
1573 }
1574 ✗ s->palette_is_set = 1;
1575 ✗ break;
1576 }
1577 18 case TIFF_PLANAR:
1578 18 s->planar = value == 2;
1579 18 break;
1580 ✗ case TIFF_YCBCR_SUBSAMPLING:
1581 ✗ if (count != 2) {
1582 ✗ av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n");
1583 ✗ return AVERROR_INVALIDDATA;
1584 }
1585 ✗ for (i = 0; i < count; i++) {
1586 ✗ s->subsampling[i] = ff_tget(&s->gb, type, s->le);
1587 ✗ if (s->subsampling[i] <= 0) {
1588 ✗ av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]);
1589 ✗ s->subsampling[i] = 1;
1590 ✗ return AVERROR_INVALIDDATA;
1591 }
1592 }
1593 ✗ break;
1594 ✗ case TIFF_T4OPTIONS:
1595 ✗ if (s->compr == TIFF_G3) {
1596 ✗ if (value > INT_MAX)
1597 ✗ return AVERROR_INVALIDDATA;
1598 ✗ s->fax_opts = value;
1599 }
1600 ✗ break;
1601 ✗ case TIFF_T6OPTIONS:
1602 ✗ if (s->compr == TIFF_G4) {
1603 ✗ if (value > INT_MAX)
1604 ✗ return AVERROR_INVALIDDATA;
1605 ✗ s->fax_opts = value;
1606 }
1607 ✗ break;
1608 #define ADD_METADATA(count, name, sep)\
1609 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
1610 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
1611 goto end;\
1612 }
1613 ✗ case TIFF_MODEL_PIXEL_SCALE:
1614 ✗ ADD_METADATA(count, "ModelPixelScaleTag", NULL);
1615 ✗ break;
1616 ✗ case TIFF_MODEL_TRANSFORMATION:
1617 ✗ ADD_METADATA(count, "ModelTransformationTag", NULL);
1618 ✗ break;
1619 ✗ case TIFF_MODEL_TIEPOINT:
1620 ✗ ADD_METADATA(count, "ModelTiepointTag", NULL);
1621 ✗ break;
1622 ✗ case TIFF_GEO_KEY_DIRECTORY:
1623 ✗ if (s->geotag_count) {
1624 ✗ avpriv_request_sample(s->avctx, "Multiple geo key directories");
1625 ✗ return AVERROR_INVALIDDATA;
1626 }
1627 ✗ ADD_METADATA(1, "GeoTIFF_Version", NULL);
1628 ✗ ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
1629 ✗ s->geotag_count = ff_tget_short(&s->gb, s->le);
1630 ✗ if (s->geotag_count > count / 4 - 1) {
1631 ✗ s->geotag_count = count / 4 - 1;
1632 ✗ av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
1633 }
1634 ✗ if ( bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4
1635 ✗ || s->geotag_count == 0) {
1636 ✗ s->geotag_count = 0;
1637 ✗ return -1;
1638 }
1639 ✗ s->geotags = av_calloc(s->geotag_count, sizeof(*s->geotags));
1640 ✗ if (!s->geotags) {
1641 ✗ av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1642 ✗ s->geotag_count = 0;
1643 ✗ goto end;
1644 }
1645 ✗ for (i = 0; i < s->geotag_count; i++) {
1646 unsigned val;
1647 ✗ s->geotags[i].key = ff_tget_short(&s->gb, s->le);
1648 ✗ s->geotags[i].type = ff_tget_short(&s->gb, s->le);
1649 ✗ s->geotags[i].count = ff_tget_short(&s->gb, s->le);
1650 ✗ val = ff_tget_short(&s->gb, s->le);
1651
1652 ✗ if (!s->geotags[i].type) {
1653 ✗ const char *str = get_geokey_val(s->geotags[i].key, val);
1654
1655 ✗ s->geotags[i].val = str ? av_strdup(str) : av_asprintf("Unknown-%u", val);
1656 ✗ if (!s->geotags[i].val)
1657 ✗ return AVERROR(ENOMEM);
1658 } else
1659 ✗ s->geotags[i].offset = val;
1660 }
1661 ✗ break;
1662 ✗ case TIFF_GEO_DOUBLE_PARAMS:
1663 ✗ if (count >= INT_MAX / sizeof(int64_t))
1664 ✗ return AVERROR_INVALIDDATA;
1665 ✗ if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
1666 ✗ return AVERROR_INVALIDDATA;
1667 ✗ dp = av_malloc_array(count, sizeof(double));
1668 ✗ if (!dp) {
1669 ✗ av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1670 ✗ goto end;
1671 }
1672 ✗ for (i = 0; i < count; i++)
1673 ✗ dp[i] = ff_tget_double(&s->gb, s->le);
1674 ✗ for (i = 0; i < s->geotag_count; i++) {
1675 ✗ if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
1676 ✗ if (s->geotags[i].count == 0
1677 ✗ || s->geotags[i].offset + s->geotags[i].count > count) {
1678 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1679 ✗ } else if (s->geotags[i].val) {
1680 ✗ av_log(s->avctx, AV_LOG_WARNING, "Duplicate GeoTIFF key %d\n", s->geotags[i].key);
1681 } else {
1682 ✗ char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
1683 ✗ if (!ap) {
1684 ✗ av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1685 ✗ av_freep(&dp);
1686 ✗ return AVERROR(ENOMEM);
1687 }
1688 ✗ s->geotags[i].val = ap;
1689 }
1690 }
1691 }
1692 ✗ av_freep(&dp);
1693 ✗ break;
1694 ✗ case TIFF_GEO_ASCII_PARAMS:
1695 ✗ pos = bytestream2_tell(&s->gb);
1696 ✗ for (i = 0; i < s->geotag_count; i++) {
1697 ✗ if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
1698 ✗ if (s->geotags[i].count == 0
1699 ✗ || s->geotags[i].offset + s->geotags[i].count > count) {
1700 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1701 } else {
1702 char *ap;
1703
1704 ✗ bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
1705 ✗ if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
1706 ✗ return AVERROR_INVALIDDATA;
1707 ✗ if (s->geotags[i].val)
1708 ✗ return AVERROR_INVALIDDATA;
1709 ✗ ap = av_malloc(s->geotags[i].count);
1710 ✗ if (!ap) {
1711 ✗ av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1712 ✗ return AVERROR(ENOMEM);
1713 }
1714 ✗ bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
1715 ✗ ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
1716 ✗ s->geotags[i].val = ap;
1717 }
1718 }
1719 }
1720 ✗ break;
1721 ✗ case TIFF_ICC_PROFILE:
1722 ✗ gb_temp = s->gb;
1723 ✗ bytestream2_seek(&gb_temp, off, SEEK_SET);
1724
1725 ✗ if (bytestream2_get_bytes_left(&gb_temp) < count)
1726 ✗ return AVERROR_INVALIDDATA;
1727
1728 ✗ ret = ff_frame_new_side_data(s->avctx, frame, AV_FRAME_DATA_ICC_PROFILE, count, &sd);
1729 ✗ if (ret < 0)
1730 ✗ return ret;
1731 ✗ if (sd)
1732 ✗ bytestream2_get_bufferu(&gb_temp, sd->data, count);
1733 ✗ break;
1734 ✗ case TIFF_ARTIST:
1735 ✗ ADD_METADATA(count, "artist", NULL);
1736 ✗ break;
1737 ✗ case TIFF_COPYRIGHT:
1738 ✗ ADD_METADATA(count, "copyright", NULL);
1739 ✗ break;
1740 2 case TIFF_DATE:
1741
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 2 ADD_METADATA(count, "date", NULL);
1742 2 break;
1743 6 case TIFF_DOCUMENT_NAME:
1744
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 6 ADD_METADATA(count, "document_name", NULL);
1745 6 break;
1746 ✗ case TIFF_HOST_COMPUTER:
1747 ✗ ADD_METADATA(count, "computer", NULL);
1748 ✗ break;
1749 4 case TIFF_IMAGE_DESCRIPTION:
1750
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 4 ADD_METADATA(count, "description", NULL);
1751 4 break;
1752 ✗ case TIFF_MAKE:
1753 ✗ ADD_METADATA(count, "make", NULL);
1754 ✗ break;
1755 ✗ case TIFF_MODEL:
1756 ✗ ADD_METADATA(count, "model", NULL);
1757 ✗ break;
1758 ✗ case TIFF_PAGE_NAME:
1759 ✗ ADD_METADATA(count, "page_name", NULL);
1760 ✗ break;
1761 12 case TIFF_PAGE_NUMBER:
1762
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 12 ADD_METADATA(count, "page_number", " / ");
1763 // need to seek back to re-read the page number
1764 12 bytestream2_seek(&s->gb, -count * sizeof(uint16_t), SEEK_CUR);
1765 // read the page number
1766 12 s->cur_page = ff_tget_short(&s->gb, s->le);
1767 // get back to where we were before the previous seek
1768 12 bytestream2_seek(&s->gb, count * sizeof(uint16_t) - sizeof(uint16_t), SEEK_CUR);
1769 12 break;
1770 2 case TIFF_SOFTWARE_NAME:
1771
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 2 ADD_METADATA(count, "software", NULL);
1772 2 break;
1773 ✗ case DNG_VERSION:
1774 ✗ if (count == 4) {
1775 unsigned int ver[4];
1776 ✗ ver[0] = ff_tget(&s->gb, type, s->le);
1777 ✗ ver[1] = ff_tget(&s->gb, type, s->le);
1778 ✗ ver[2] = ff_tget(&s->gb, type, s->le);
1779 ✗ ver[3] = ff_tget(&s->gb, type, s->le);
1780
1781 ✗ av_log(s->avctx, AV_LOG_DEBUG, "DNG file, version %u.%u.%u.%u\n",
1782 ver[0], ver[1], ver[2], ver[3]);
1783
1784 ✗ tiff_set_type(s, TIFF_TYPE_DNG);
1785 }
1786 ✗ break;
1787 ✗ case DNG_ANALOG_BALANCE:
1788 ✗ if (type != TIFF_RATIONAL)
1789 ✗ break;
1790
1791 ✗ for (int i = 0; i < 3; i++) {
1792 ✗ value = ff_tget_long(&s->gb, s->le);
1793 ✗ value2 = ff_tget_long(&s->gb, s->le);
1794 ✗ if (!value2) {
1795 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1796 ✗ value2 = 1;
1797 }
1798
1799 ✗ s->analog_balance[i] = value / (float)value2;
1800 }
1801 ✗ break;
1802 ✗ case DNG_AS_SHOT_NEUTRAL:
1803 ✗ if (type != TIFF_RATIONAL)
1804 ✗ break;
1805
1806 ✗ for (int i = 0; i < 3; i++) {
1807 ✗ value = ff_tget_long(&s->gb, s->le);
1808 ✗ value2 = ff_tget_long(&s->gb, s->le);
1809 ✗ if (!value2) {
1810 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1811 ✗ value2 = 1;
1812 }
1813
1814 ✗ s->as_shot_neutral[i] = value / (float)value2;
1815 }
1816 ✗ break;
1817 ✗ case DNG_AS_SHOT_WHITE_XY:
1818 ✗ if (type != TIFF_RATIONAL)
1819 ✗ break;
1820
1821 ✗ for (int i = 0; i < 2; i++) {
1822 ✗ value = ff_tget_long(&s->gb, s->le);
1823 ✗ value2 = ff_tget_long(&s->gb, s->le);
1824 ✗ if (!value2) {
1825 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1826 ✗ value2 = 1;
1827 }
1828
1829 ✗ s->as_shot_white[i] = value / (float)value2;
1830 }
1831 ✗ s->as_shot_white[2] = 1.f - s->as_shot_white[0] - s->as_shot_white[1];
1832 ✗ for (int i = 0; i < 3; i++) {
1833 ✗ s->as_shot_white[i] /= d65_white[i];
1834 }
1835 ✗ break;
1836 ✗ case DNG_COLOR_MATRIX1:
1837 case DNG_COLOR_MATRIX2:
1838 ✗ for (int i = 0; i < 3; i++) {
1839 ✗ for (int j = 0; j < 3; j++) {
1840 ✗ int value = ff_tget_long(&s->gb, s->le);
1841 ✗ int value2 = ff_tget_long(&s->gb, s->le);
1842 ✗ if (!value2) {
1843 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1844 ✗ value2 = 1;
1845 }
1846 ✗ s->color_matrix[i][j] = value / (float)value2;
1847 }
1848 ✗ s->use_color_matrix = 1;
1849 }
1850 ✗ break;
1851 ✗ case DNG_CAMERA_CALIBRATION1:
1852 case DNG_CAMERA_CALIBRATION2:
1853 ✗ for (int i = 0; i < 3; i++) {
1854 ✗ for (int j = 0; j < 3; j++) {
1855 ✗ int value = ff_tget_long(&s->gb, s->le);
1856 ✗ int value2 = ff_tget_long(&s->gb, s->le);
1857 ✗ if (!value2) {
1858 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1859 ✗ value2 = 1;
1860 }
1861 ✗ s->camera_calibration[i][j] = value / (float)value2;
1862 }
1863 }
1864 ✗ break;
1865 ✗ case CINEMADNG_TIME_CODES:
1866 case CINEMADNG_FRAME_RATE:
1867 case CINEMADNG_T_STOP:
1868 case CINEMADNG_REEL_NAME:
1869 case CINEMADNG_CAMERA_LABEL:
1870 ✗ tiff_set_type(s, TIFF_TYPE_CINEMADNG);
1871 ✗ break;
1872 97 default:
1873
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 97 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1874 ✗ av_log(s->avctx, AV_LOG_ERROR,
1875 "Unknown or unsupported tag %d/0x%0X\n",
1876 tag, tag);
1877 ✗ return AVERROR_INVALIDDATA;
1878 }
1879 }
1880 97 end:
1881
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 519 if (s->bpp > 128U) {
1882 ✗ av_log(s->avctx, AV_LOG_ERROR,
1883 "This format is not supported (bpp=%d, %d components)\n",
1884 s->bpp, count);
1885 ✗ s->bpp = 0;
1886 ✗ return AVERROR_INVALIDDATA;
1887 }
1888 519 bytestream2_seek(&s->gb, start, SEEK_SET);
1889 519 return 0;
1890 }
1891
1892 static const float xyz2rgb[3][3] = {
1893 { 0.412453f, 0.357580f, 0.180423f },
1894 { 0.212671f, 0.715160f, 0.072169f },
1895 { 0.019334f, 0.119193f, 0.950227f },
1896 };
1897
1898 ✗ static void camera_xyz_coeff(TiffContext *s,
1899 float rgb2cam[3][4],
1900 double cam2xyz[4][3])
1901 {
1902 double cam2rgb[4][3], num;
1903 int i, j, k;
1904
1905 ✗ for (i = 0; i < 3; i++) {
1906 ✗ for (j = 0; j < 3; j++) {
1907 ✗ cam2rgb[i][j] = 0.;
1908 ✗ for (k = 0; k < 3; k++)
1909 ✗ cam2rgb[i][j] += cam2xyz[i][k] * xyz2rgb[k][j];
1910 }
1911 }
1912
1913 ✗ for (i = 0; i < 3; i++) {
1914 ✗ for (num = j = 0; j < 3; j++)
1915 ✗ num += cam2rgb[i][j];
1916 ✗ if (!num)
1917 ✗ num = 1;
1918 ✗ for (j = 0; j < 3; j++)
1919 ✗ cam2rgb[i][j] /= num;
1920 ✗ s->premultiply[i] = 1.f / num;
1921 }
1922 ✗ }
1923
1924 33 static int decode_frame(AVCodecContext *avctx, AVFrame *p,
1925 int *got_frame, AVPacket *avpkt)
1926 {
1927 33 TiffContext *const s = avctx->priv_data;
1928 33 unsigned off, last_off = 0;
1929 int le, ret, plane, planes;
1930 int i, j, entries, stride;
1931 unsigned soff, ssize;
1932 uint8_t *dst;
1933 GetByteContext stripsizes;
1934 GetByteContext stripdata;
1935 int retry_for_subifd, retry_for_page;
1936 int is_dng;
1937 int has_tile_bits, has_strip_bits;
1938
1939 33 bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1940
1941 // parse image header
1942
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 33 if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
1943 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
1944 ✗ return ret;
1945
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 33 } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1946 ✗ av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1947 ✗ return AVERROR_INVALIDDATA;
1948 }
1949 33 s->le = le;
1950 // TIFF_BPP is not a required tag and defaults to 1
1951
1952 33 s->tiff_type = TIFF_TYPE_TIFF;
1953 33 s->use_color_matrix = 0;
1954 33 again:
1955 33 s->is_thumbnail = 0;
1956 33 s->bppcount = s->bpp = 1;
1957 33 s->photometric = TIFF_PHOTOMETRIC_NONE;
1958 33 s->compr = TIFF_RAW;
1959 33 s->fill_order = 0;
1960 33 s->white_level = 0;
1961 33 s->is_bayer = 0;
1962 33 s->is_tiled = 0;
1963 33 s->is_jpeg = 0;
1964 33 s->cur_page = 0;
1965 33 s->last_tag = 0;
1966
1967
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 2162721 for (i = 0; i < 65536; i++)
1968 2162688 s->dng_lut[i] = i;
1969
1970
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 165 for (i = 0; i < FF_ARRAY_ELEMS(s->black_level); i++)
1971 132 s->black_level[i] = 0.f;
1972
1973
2/2
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 165 for (i = 0; i < FF_ARRAY_ELEMS(s->as_shot_neutral); i++)
1974 132 s->as_shot_neutral[i] = 0.f;
1975
1976
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 165 for (i = 0; i < FF_ARRAY_ELEMS(s->as_shot_white); i++)
1977 132 s->as_shot_white[i] = 1.f;
1978
1979
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 165 for (i = 0; i < FF_ARRAY_ELEMS(s->analog_balance); i++)
1980 132 s->analog_balance[i] = 1.f;
1981
1982
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 165 for (i = 0; i < FF_ARRAY_ELEMS(s->premultiply); i++)
1983 132 s->premultiply[i] = 1.f;
1984
1985
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 165 for (i = 0; i < 4; i++)
1986
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 660 for (j = 0; j < 4; j++)
1987
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 528 s->camera_calibration[i][j] = i == j;
1988
1989 33 free_geotags(s);
1990
1991 // Reset these offsets so we can tell if they were set this frame
1992 33 s->stripsizesoff = s->strippos = 0;
1993 /* parse image file directory */
1994 33 bytestream2_seek(&s->gb, off, SEEK_SET);
1995 33 entries = ff_tget_short(&s->gb, le);
1996
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 33 if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1997 ✗ return AVERROR_INVALIDDATA;
1998
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 552 for (i = 0; i < entries; i++) {
1999
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 519 if ((ret = tiff_decode_tag(s, p)) < 0)
2000 ✗ return ret;
2001 }
2002
2003
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 33 if (s->get_thumbnail && !s->is_thumbnail) {
2004 ✗ av_log(avctx, AV_LOG_INFO, "No embedded thumbnail present\n");
2005 ✗ return AVERROR_EOF;
2006 }
2007
2008 /** whether we should process this IFD's SubIFD */
2009
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 33 retry_for_subifd = s->sub_ifd && (s->get_subimage || (!s->get_thumbnail && s->is_thumbnail));
2010 /** whether we should process this multi-page IFD's next page */
2011
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 33 retry_for_page = s->get_page && s->cur_page + 1 < s->get_page; // get_page is 1-indexed
2012
2013
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 33 if (retry_for_page) {
2014 // set offset to the next IFD
2015 ✗ off = ff_tget_long(&s->gb, le);
2016
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✓ Branch 1 taken 33 times.
 33 } else if (retry_for_subifd) {
2017 // set offset to the SubIFD
2018 ✗ off = s->sub_ifd;
2019 }
2020
2021
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 33 if (retry_for_subifd || retry_for_page) {
2022 ✗ if (!off) {
2023 ✗ av_log(avctx, AV_LOG_ERROR, "Requested entry not found\n");
2024 ✗ return AVERROR_INVALIDDATA;
2025 }
2026 ✗ if (off <= last_off) {
2027 ✗ avpriv_request_sample(s->avctx, "non increasing IFD offset");
2028 ✗ return AVERROR_INVALIDDATA;
2029 }
2030 ✗ last_off = off;
2031 ✗ if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
2032 ✗ av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
2033 ✗ return AVERROR_INVALIDDATA;
2034 }
2035 ✗ s->sub_ifd = 0;
2036 ✗ goto again;
2037 }
2038
2039 /* At this point we've decided on which (Sub)IFD to process */
2040
2041
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 33 is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
2042
2043
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 33 for (i = 0; i<s->geotag_count; i++) {
2044 ✗ const char *keyname = get_geokey_name(s->geotags[i].key);
2045 ✗ if (!keyname) {
2046 ✗ av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
2047 ✗ continue;
2048 }
2049 ✗ if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
2050 ✗ av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
2051 ✗ continue;
2052 }
2053 ✗ ret = av_dict_set(&p->metadata, keyname, s->geotags[i].val, AV_DICT_DONT_STRDUP_VAL);
2054 ✗ s->geotags[i].val = NULL;
2055 ✗ if (ret<0) {
2056 ✗ av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
2057 ✗ return ret;
2058 }
2059 }
2060
2061
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 33 if (is_dng) {
2062 double cam2xyz[4][3];
2063 float cmatrix[3][4];
2064 ✗ float pmin = FLT_MAX;
2065 int bps;
2066
2067 ✗ for (i = 0; i < 3; i++) {
2068 ✗ for (j = 0; j < 3; j++)
2069 ✗ s->camera_calibration[i][j] *= s->analog_balance[i];
2070 }
2071
2072 ✗ if (!s->use_color_matrix) {
2073 ✗ for (i = 0; i < 3; i++) {
2074 ✗ if (s->camera_calibration[i][i])
2075 ✗ s->premultiply[i] /= s->camera_calibration[i][i];
2076 }
2077 } else {
2078 ✗ for (int c = 0; c < 3; c++) {
2079 ✗ for (i = 0; i < 3; i++) {
2080 ✗ cam2xyz[c][i] = 0.;
2081 ✗ for (j = 0; j < 3; j++)
2082 ✗ cam2xyz[c][i] += s->camera_calibration[c][j] * s->color_matrix[j][i] * s->as_shot_white[i];
2083 }
2084 }
2085
2086 ✗ camera_xyz_coeff(s, cmatrix, cam2xyz);
2087 }
2088
2089 ✗ for (int c = 0; c < 3; c++)
2090 ✗ pmin = fminf(pmin, s->premultiply[c]);
2091
2092 ✗ for (int c = 0; c < 3; c++)
2093 ✗ s->premultiply[c] /= pmin;
2094
2095 ✗ if (s->bpp % s->bppcount)
2096 ✗ return AVERROR_INVALIDDATA;
2097 ✗ bps = s->bpp / s->bppcount;
2098 ✗ if (bps < 8 || bps > 32)
2099 ✗ return AVERROR_INVALIDDATA;
2100
2101 ✗ if (s->white_level == 0)
2102 ✗ s->white_level = (1LL << bps) - 1; /* Default value as per the spec */
2103
2104 ✗ if (s->white_level <= s->black_level[0]) {
2105 ✗ av_log(avctx, AV_LOG_ERROR, "BlackLevel (%g) must be less than WhiteLevel (%"PRId32")\n",
2106 ✗ s->black_level[0], s->white_level);
2107 ✗ return AVERROR_INVALIDDATA;
2108 }
2109
2110 ✗ if (s->planar)
2111 ✗ return AVERROR_PATCHWELCOME;
2112 }
2113
2114
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 33 if (!s->is_tiled && !s->strippos && !s->stripoff) {
2115 ✗ av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
2116 ✗ return AVERROR_INVALIDDATA;
2117 }
2118
2119
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;
2120
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 33 has_strip_bits = s->strippos || s->strips || s->stripoff || s->rps || s->sot || s->sstype || s->stripsize || s->stripsizesoff;
2121
2122
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 33 if (has_tile_bits && has_strip_bits) {
2123 ✗ int tiled_dng = s->is_tiled && is_dng;
2124 ✗ av_log(avctx, tiled_dng ? AV_LOG_WARNING : AV_LOG_ERROR, "Tiled TIFF is not allowed to strip\n");
2125 ✗ if (!tiled_dng)
2126 ✗ return AVERROR_INVALIDDATA;
2127 }
2128
2129 /* now we have the data and may start decoding */
2130
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 33 if ((ret = init_image(s, p)) <= 0)
2131 11 return ret;
2132
2133
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 22 if (!s->is_tiled || has_strip_bits) {
2134
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 22 if (s->strips == 1 && !s->stripsize) {
2135 ✗ av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
2136 ✗ s->stripsize = avpkt->size - s->stripoff;
2137 }
2138
2139
2/2
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 22 if (s->stripsizesoff) {
2140
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 15 if (s->stripsizesoff >= (unsigned)avpkt->size)
2141 ✗ return AVERROR_INVALIDDATA;
2142 15 bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
2143 15 avpkt->size - s->stripsizesoff);
2144 }
2145
2/2
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 22 if (s->strippos) {
2146
1/2
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 15 if (s->strippos >= (unsigned)avpkt->size)
2147 ✗ return AVERROR_INVALIDDATA;
2148 15 bytestream2_init(&stripdata, avpkt->data + s->strippos,
2149 15 avpkt->size - s->strippos);
2150 }
2151
2152
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 22 if (s->rps <= 0 || s->rps % s->subsampling[1]) {
2153 ✗ av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
2154 ✗ return AVERROR_INVALIDDATA;
2155 }
2156 }
2157
2158
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 22 if (s->photometric == TIFF_PHOTOMETRIC_LINEAR_RAW ||
2159
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 22 s->photometric == TIFF_PHOTOMETRIC_CFA) {
2160 ✗ p->color_trc = AVCOL_TRC_LINEAR;
2161
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✓ Branch 1 taken 22 times.
 22 } else if (s->photometric == TIFF_PHOTOMETRIC_BLACK_IS_ZERO) {
2162 ✗ p->color_trc = AVCOL_TRC_GAMMA22;
2163 }
2164
2165 /* Handle DNG images with JPEG-compressed tiles */
2166
2167
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 22 if (is_dng && s->is_tiled) {
2168 ✗ if (!s->is_jpeg) {
2169 ✗ avpriv_report_missing_feature(avctx, "DNG uncompressed tiled images");
2170 ✗ return AVERROR_PATCHWELCOME;
2171 ✗ } else if (!s->is_bayer) {
2172 ✗ avpriv_report_missing_feature(avctx, "DNG JPG-compressed tiled non-bayer-encoded images");
2173 ✗ return AVERROR_PATCHWELCOME;
2174 } else {
2175 ✗ if ((ret = dng_decode_tiles(avctx, p, avpkt)) > 0)
2176 ✗ *got_frame = 1;
2177 ✗ return ret;
2178 }
2179 }
2180
2181 /* Handle TIFF images and DNG images with uncompressed strips (non-tiled) */
2182
2183
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 22 planes = s->planar ? s->bppcount : 1;
2184
2/2
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 44 for (plane = 0; plane < planes; plane++) {
2185 22 uint8_t *five_planes = NULL;
2186 22 int remaining = avpkt->size;
2187 int decoded_height;
2188 22 stride = p->linesize[plane];
2189 22 dst = p->data[plane];
2190
1/2
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 22 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2191 ✗ s->avctx->pix_fmt == AV_PIX_FMT_RGBA) {
2192 ✗ stride = stride * 5 / 4;
2193 ✗ five_planes =
2194 ✗ dst = av_malloc(stride * s->height);
2195 ✗ if (!dst)
2196 ✗ return AVERROR(ENOMEM);
2197 }
2198
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 601 for (i = 0; i < s->height; i += s->rps) {
2199
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 579 if (i)
2200 557 dst += s->rps * stride;
2201
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 579 if (s->stripsizesoff)
2202 572 ssize = ff_tget(&stripsizes, s->sstype, le);
2203 else
2204 7 ssize = s->stripsize;
2205
2206
2/2
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 579 if (s->strippos)
2207 572 soff = ff_tget(&stripdata, s->sot, le);
2208 else
2209 7 soff = s->stripoff;
2210
2211
3/6
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 579 if (soff > avpkt->size || ssize > avpkt->size - soff || ssize > remaining) {
2212 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
2213 ✗ av_freep(&five_planes);
2214 ✗ return AVERROR_INVALIDDATA;
2215 }
2216 579 remaining -= ssize;
2217
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 579 if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i,
2218 579 FFMIN(s->rps, s->height - i))) < 0) {
2219 ✗ if (avctx->err_recognition & AV_EF_EXPLODE) {
2220 ✗ av_freep(&five_planes);
2221 ✗ return ret;
2222 }
2223 ✗ break;
2224 }
2225 }
2226 22 decoded_height = FFMIN(i, s->height);
2227
2228
1/2
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✓ Branch 1 taken 22 times.
 22 if (s->predictor == 2) {
2229 ✗ if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
2230 ✗ av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported");
2231 ✗ return AVERROR_PATCHWELCOME;
2232 }
2233 ✗ dst = five_planes ? five_planes : p->data[plane];
2234 ✗ soff = s->bpp >> 3;
2235 ✗ if (s->planar)
2236 ✗ soff = FFMAX(soff / s->bppcount, 1);
2237 ✗ ssize = s->width * soff;
2238 ✗ if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
2239 ✗ s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
2240 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GRAY16LE ||
2241 ✗ s->avctx->pix_fmt == AV_PIX_FMT_YA16LE ||
2242 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
2243 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
2244 ✗ for (i = 0; i < decoded_height; i++) {
2245 ✗ for (j = soff; j < ssize; j += 2)
2246 ✗ AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
2247 ✗ dst += stride;
2248 }
2249 ✗ } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
2250 ✗ s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
2251 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GRAY16BE ||
2252 ✗ s->avctx->pix_fmt == AV_PIX_FMT_YA16BE ||
2253 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
2254 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
2255 ✗ for (i = 0; i < decoded_height; i++) {
2256 ✗ for (j = soff; j < ssize; j += 2)
2257 ✗ AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
2258 ✗ dst += stride;
2259 }
2260 } else {
2261 ✗ for (i = 0; i < decoded_height; i++) {
2262 ✗ for (j = soff; j < ssize; j++)
2263 ✗ dst[j] += dst[j - soff];
2264 ✗ dst += stride;
2265 }
2266 }
2267 }
2268
2269 /* Floating point predictor
2270 TIFF Technical Note 3 http://chriscox.org/TIFFTN3d1.pdf */
2271
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 22 if (s->predictor == 3) {
2272 4 int channels = s->bppcount;
2273 int group_size;
2274 uint8_t *tmpbuf;
2275 int bpc;
2276
2277
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 4 dst = five_planes ? five_planes : p->data[plane];
2278 4 soff = s->bpp >> 3;
2279
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 4 if (s->planar) {
2280 ✗ soff = FFMAX(soff / s->bppcount, 1);
2281 ✗ channels = 1;
2282 }
2283 4 ssize = s->width * soff;
2284 4 bpc = FFMAX(soff / s->bppcount, 1); /* Bytes per component */
2285 4 group_size = s->width * channels;
2286
2287 4 tmpbuf = av_malloc(ssize);
2288
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 4 if (!tmpbuf) {
2289 ✗ av_free(five_planes);
2290 ✗ return AVERROR(ENOMEM);
2291 }
2292
2293
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 4 if (s->avctx->pix_fmt == AV_PIX_FMT_RGBF32LE ||
2294
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 2 s->avctx->pix_fmt == AV_PIX_FMT_RGBAF32LE) {
2295
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 36 for (i = 0; i < decoded_height; i++) {
2296 /* Copy first sample byte for each channel */
2297
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 144 for (j = 0; j < channels; j++)
2298 112 tmpbuf[j] = dst[j];
2299
2300 /* Decode horizontal differences */
2301
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 3504 for (j = channels; j < ssize; j++)
2302 3472 tmpbuf[j] = dst[j] + tmpbuf[j-channels];
2303
2304 /* Combine shuffled bytes from their separate groups. Each
2305 byte of every floating point value in a row of pixels is
2306 split and combined into separate groups. A group of all
2307 the sign/exponents bytes in the row and groups for each
2308 of the upper, mid, and lower mantissa bytes in the row. */
2309
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 928 for (j = 0; j < group_size; j++) {
2310
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 4480 for (int k = 0; k < bpc; k++) {
2311 3584 dst[bpc * j + k] = tmpbuf[(bpc - k - 1) * group_size + j];
2312 }
2313 }
2314 32 dst += stride;
2315 }
2316 ✗ } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGBF32BE ||
2317 ✗ s->avctx->pix_fmt == AV_PIX_FMT_RGBAF32BE) {
2318 /* Same as LE only the shuffle at the end is reversed */
2319 ✗ for (i = 0; i < decoded_height; i++) {
2320 ✗ for (j = 0; j < channels; j++)
2321 ✗ tmpbuf[j] = dst[j];
2322
2323 ✗ for (j = channels; j < ssize; j++)
2324 ✗ tmpbuf[j] = dst[j] + tmpbuf[j-channels];
2325
2326 ✗ for (j = 0; j < group_size; j++) {
2327 ✗ for (int k = 0; k < bpc; k++) {
2328 ✗ dst[bpc * j + k] = tmpbuf[k * group_size + j];
2329 }
2330 }
2331 ✗ dst += stride;
2332 }
2333 } else {
2334 ✗ av_log(s->avctx, AV_LOG_ERROR, "unsupported floating point pixel format\n");
2335 }
2336 4 av_free(tmpbuf);
2337 }
2338
2339
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 22 if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) {
2340
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 2 int c = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255);
2341 2 dst = p->data[plane];
2342
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 6498 for (i = 0; i < s->height; i++) {
2343
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 2085216 for (j = 0; j < stride; j++)
2344 2078720 dst[j] = c - dst[j];
2345 6496 dst += stride;
2346 }
2347 }
2348
2349
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 22 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2350 ✗ (s->avctx->pix_fmt == AV_PIX_FMT_RGB0 || s->avctx->pix_fmt == AV_PIX_FMT_RGBA)) {
2351 ✗ int x = s->avctx->pix_fmt == AV_PIX_FMT_RGB0 ? 4 : 5;
2352 ✗ uint8_t *src = five_planes ? five_planes : p->data[plane];
2353 ✗ dst = p->data[plane];
2354 ✗ for (i = 0; i < s->height; i++) {
2355 ✗ for (j = 0; j < s->width; j++) {
2356 ✗ int k = 255 - src[x * j + 3];
2357 ✗ int r = (255 - src[x * j ]) * k;
2358 ✗ int g = (255 - src[x * j + 1]) * k;
2359 ✗ int b = (255 - src[x * j + 2]) * k;
2360 ✗ dst[4 * j ] = r * 257 >> 16;
2361 ✗ dst[4 * j + 1] = g * 257 >> 16;
2362 ✗ dst[4 * j + 2] = b * 257 >> 16;
2363 ✗ dst[4 * j + 3] = s->avctx->pix_fmt == AV_PIX_FMT_RGBA ? src[x * j + 4] : 255;
2364 }
2365 ✗ src += stride;
2366 ✗ dst += p->linesize[plane];
2367 }
2368 ✗ av_freep(&five_planes);
2369
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 22 } else if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2370 ✗ s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) {
2371 ✗ dst = p->data[plane];
2372 ✗ for (i = 0; i < s->height; i++) {
2373 ✗ for (j = 0; j < s->width; j++) {
2374 ✗ uint64_t k = 65535 - AV_RB16(dst + 8 * j + 6);
2375 ✗ uint64_t r = (65535 - AV_RB16(dst + 8 * j )) * k;
2376 ✗ uint64_t g = (65535 - AV_RB16(dst + 8 * j + 2)) * k;
2377 ✗ uint64_t b = (65535 - AV_RB16(dst + 8 * j + 4)) * k;
2378 ✗ AV_WB16(dst + 8 * j , r * 65537 >> 32);
2379 ✗ AV_WB16(dst + 8 * j + 2, g * 65537 >> 32);
2380 ✗ AV_WB16(dst + 8 * j + 4, b * 65537 >> 32);
2381 ✗ AV_WB16(dst + 8 * j + 6, 65535);
2382 }
2383 ✗ dst += p->linesize[plane];
2384 }
2385 }
2386 }
2387
2388
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 22 if (s->planar && s->bppcount > 2) {
2389 ✗ FFSWAP(uint8_t*, p->data[0], p->data[2]);
2390 ✗ FFSWAP(int, p->linesize[0], p->linesize[2]);
2391 ✗ FFSWAP(uint8_t*, p->data[0], p->data[1]);
2392 ✗ FFSWAP(int, p->linesize[0], p->linesize[1]);
2393 }
2394
2395
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 22 if (s->is_bayer && s->white_level && s->bpp == 16 && !is_dng) {
2396 ✗ uint16_t *dst = (uint16_t *)p->data[0];
2397 ✗ for (i = 0; i < s->height; i++) {
2398 ✗ for (j = 0; j < s->width; j++)
2399 ✗ dst[j] = FFMIN((dst[j] / (float)s->white_level) * 65535, 65535);
2400 ✗ dst += stride / 2;
2401 }
2402 }
2403
2404 22 *got_frame = 1;
2405
2406 22 return avpkt->size;
2407 }
2408
2409 21 static av_cold int tiff_init(AVCodecContext *avctx)
2410 {
2411 21 TiffContext *s = avctx->priv_data;
2412 const AVCodec *codec;
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 21 codec = avcodec_find_decoder(AV_CODEC_ID_MJPEG);
2433
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 21 if (!codec)
2434 ✗ return AVERROR_BUG;
2435 21 s->avctx_mjpeg = avcodec_alloc_context3(codec);
2436
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 21 if (!s->avctx_mjpeg)
2437 ✗ return AVERROR(ENOMEM);
2438 21 s->avctx_mjpeg->flags = avctx->flags;
2439 21 s->avctx_mjpeg->flags2 = avctx->flags2;
2440 21 s->avctx_mjpeg->idct_algo = avctx->idct_algo;
2441 21 s->avctx_mjpeg->max_pixels = avctx->max_pixels;
2442 21 ret = avcodec_open2(s->avctx_mjpeg, codec, NULL);
2443
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 21 if (ret < 0) {
2444 ✗ return ret;
2445 }
2446
2447 21 return 0;
2448 }
2449
2450 21 static av_cold int tiff_end(AVCodecContext *avctx)
2451 {
2452 21 TiffContext *const s = avctx->priv_data;
2453
2454 21 free_geotags(s);
2455
2456 21 ff_lzw_decode_close(&s->lzw);
2457 21 av_freep(&s->deinvert_buf);
2458 21 s->deinvert_buf_size = 0;
2459 21 av_freep(&s->yuv_line);
2460 21 s->yuv_line_size = 0;
2461 21 av_frame_free(&s->jpgframe);
2462 21 av_packet_free(&s->jpkt);
2463 21 avcodec_free_context(&s->avctx_mjpeg);
2464 21 return 0;
2465 }
2466
2467 #define OFFSET(x) offsetof(TiffContext, x)
2468 static const AVOption tiff_options[] = {
2469 { "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 },
2470 { "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 },
2471 { "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 },
2472 { NULL },
2473 };
2474
2475 static const AVClass tiff_decoder_class = {
2476 .class_name = "TIFF decoder",
2477 .item_name = av_default_item_name,
2478 .option = tiff_options,
2479 .version = LIBAVUTIL_VERSION_INT,
2480 };
2481
2482 const FFCodec ff_tiff_decoder = {
2483 .p.name = "tiff",
2484 CODEC_LONG_NAME("TIFF image"),
2485 .p.type = AVMEDIA_TYPE_VIDEO,
2486 .p.id = AV_CODEC_ID_TIFF,
2487 .priv_data_size = sizeof(TiffContext),
2488 .init = tiff_init,
2489 .close = tiff_end,
2490 FF_CODEC_DECODE_CB(decode_frame),
2491 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
2492 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP | FF_CODEC_CAP_ICC_PROFILES |
2493 FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
2494 .p.priv_class = &tiff_decoder_class,
2495 };
2496