FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/tiff.c
Date: 2024-04-19 07:31:02
Exec Total Coverage
Lines: 462 1529 30.2%
Functions: 14 31 45.2%
Branches: 298 1279 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
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 54 times.
 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
2/4
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
✓ Branch 2 taken 14 times.
✗ Branch 3 not taken.
 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
1/5
✗ Branch 0 not taken.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
✓ Branch 4 taken 36484 times.
 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 ✗ init_get_bits8(&gb, src, width);
426 ✗ for (int i = 0; i < s->width; i++) {
427 ✗ dst16[i] = get_bits(&gb, bpp) << shift;
428 }
429 }
430 ✗ break;
431 36484 default:
432
2/2
✓ Branch 0 taken 34369 times.
✓ Branch 1 taken 2115 times.
 36484 if (usePtr) {
433 34369 memcpy(dst + offset, src, width);
434 } else {
435 2115 memset(dst + offset, c, width);
436 }
437 }
438 36484 }
439
440 18 static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
441 {
442 int i;
443
444 18 av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
445
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 18 times.
 18 if (!s->deinvert_buf)
446 ✗ return AVERROR(ENOMEM);
447
2/2
✓ Branch 0 taken 251119 times.
✓ Branch 1 taken 18 times.
 251137 for (i = 0; i < size; i++)
448 251119 s->deinvert_buf[i] = ff_reverse[src[i]];
449
450 18 return 0;
451 }
452
453 ✗ static void unpack_gray(TiffContext *s, AVFrame *p,
454 const uint8_t *src, int lnum, int width, int bpp)
455 {
456 GetBitContext gb;
457 ✗ uint16_t *dst = (uint16_t *)(p->data[0] + lnum * p->linesize[0]);
458
459 ✗ init_get_bits8(&gb, src, width);
460
461 ✗ for (int i = 0; i < s->width; i++) {
462 ✗ dst[i] = get_bits(&gb, bpp);
463 }
464 ✗ }
465
466 ✗ static void unpack_yuv(TiffContext *s, AVFrame *p,
467 const uint8_t *src, int lnum)
468 {
469 int i, j, k;
470 ✗ int w = (s->width - 1) / s->subsampling[0] + 1;
471 ✗ uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
472 ✗ uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
473 ✗ if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
474 ✗ for (i = 0; i < w; i++) {
475 ✗ for (j = 0; j < s->subsampling[1]; j++)
476 ✗ for (k = 0; k < s->subsampling[0]; k++)
477 ✗ p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
478 ✗ FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++;
479 ✗ *pu++ = *src++;
480 ✗ *pv++ = *src++;
481 }
482 }else{
483 ✗ for (i = 0; i < w; i++) {
484 ✗ for (j = 0; j < s->subsampling[1]; j++)
485 ✗ for (k = 0; k < s->subsampling[0]; k++)
486 ✗ p->data[0][(lnum + j) * p->linesize[0] +
487 ✗ i * s->subsampling[0] + k] = *src++;
488 ✗ *pu++ = *src++;
489 ✗ *pv++ = *src++;
490 }
491 }
492 ✗ }
493
494 #if CONFIG_ZLIB
495 2 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
496 int size)
497 {
498 2 z_stream zstream = { 0 };
499 int zret;
500
501 2 zstream.next_in = src;
502 2 zstream.avail_in = size;
503 2 zstream.next_out = dst;
504 2 zstream.avail_out = *len;
505 2 zret = inflateInit(&zstream);
506
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
 2 if (zret != Z_OK) {
507 ✗ av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
508 ✗ return zret;
509 }
510 2 zret = inflate(&zstream, Z_SYNC_FLUSH);
511 2 inflateEnd(&zstream);
512 2 *len = zstream.total_out;
513
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
 2 return zret == Z_STREAM_END ? Z_OK : zret;
514 }
515
516 2 static int tiff_unpack_zlib(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
517 const uint8_t *src, int size, int width, int lines,
518 int strip_start, int is_yuv)
519 {
520 uint8_t *zbuf;
521 unsigned long outlen;
522 int ret, line;
523 2 outlen = width * lines;
524 2 zbuf = av_malloc(outlen);
525
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
 2 if (!zbuf)
526 ✗ return AVERROR(ENOMEM);
527
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
 2 if (s->fill_order) {
528 ✗ if ((ret = deinvert_buffer(s, src, size)) < 0) {
529 ✗ av_free(zbuf);
530 ✗ return ret;
531 }
532 ✗ src = s->deinvert_buf;
533 }
534 2 ret = tiff_uncompress(zbuf, &outlen, src, size);
535
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
 2 if (ret != Z_OK) {
536 ✗ av_log(s->avctx, AV_LOG_ERROR,
537 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
538 ✗ (unsigned long)width * lines, ret);
539 ✗ av_free(zbuf);
540 ✗ return AVERROR_UNKNOWN;
541 }
542 2 src = zbuf;
543
2/2
✓ Branch 0 taken 16 times.
✓ Branch 1 taken 2 times.
 18 for (line = 0; line < lines; line++) {
544
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 16 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 16 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
545 ✗ horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
546 } else {
547 16 memcpy(dst, src, width);
548 }
549
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 16 times.
 16 if (is_yuv) {
550 ✗ unpack_yuv(s, p, dst, strip_start + line);
551 ✗ line += s->subsampling[1] - 1;
552 }
553 16 dst += stride;
554 16 src += width;
555 }
556 2 av_free(zbuf);
557 2 return 0;
558 }
559 #endif
560
561 #if CONFIG_LZMA
562 ✗ static int tiff_uncompress_lzma(uint8_t *dst, uint64_t *len, const uint8_t *src,
563 int size)
564 {
565 ✗ lzma_stream stream = LZMA_STREAM_INIT;
566 lzma_ret ret;
567
568 ✗ stream.next_in = src;
569 ✗ stream.avail_in = size;
570 ✗ stream.next_out = dst;
571 ✗ stream.avail_out = *len;
572 ✗ ret = lzma_stream_decoder(&stream, UINT64_MAX, 0);
573 ✗ if (ret != LZMA_OK) {
574 ✗ av_log(NULL, AV_LOG_ERROR, "LZMA init error: %d\n", ret);
575 ✗ return ret;
576 }
577 ✗ ret = lzma_code(&stream, LZMA_RUN);
578 ✗ lzma_end(&stream);
579 ✗ *len = stream.total_out;
580 ✗ return ret == LZMA_STREAM_END ? LZMA_OK : ret;
581 }
582
583 ✗ static int tiff_unpack_lzma(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
584 const uint8_t *src, int size, int width, int lines,
585 int strip_start, int is_yuv)
586 {
587 ✗ uint64_t outlen = width * (uint64_t)lines;
588 int ret, line;
589 ✗ uint8_t *buf = av_malloc(outlen);
590 ✗ if (!buf)
591 ✗ return AVERROR(ENOMEM);
592 ✗ if (s->fill_order) {
593 ✗ if ((ret = deinvert_buffer(s, src, size)) < 0) {
594 ✗ av_free(buf);
595 ✗ return ret;
596 }
597 ✗ src = s->deinvert_buf;
598 }
599 ✗ ret = tiff_uncompress_lzma(buf, &outlen, src, size);
600 ✗ if (ret != LZMA_OK) {
601 ✗ av_log(s->avctx, AV_LOG_ERROR,
602 "Uncompressing failed (%"PRIu64" of %"PRIu64") with error %d\n", outlen,
603 ✗ (uint64_t)width * lines, ret);
604 ✗ av_free(buf);
605 ✗ return AVERROR_UNKNOWN;
606 }
607 ✗ src = buf;
608 ✗ for (line = 0; line < lines; line++) {
609 ✗ if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
610 ✗ horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
611 } else {
612 ✗ memcpy(dst, src, width);
613 }
614 ✗ if (is_yuv) {
615 ✗ unpack_yuv(s, p, dst, strip_start + line);
616 ✗ line += s->subsampling[1] - 1;
617 }
618 ✗ dst += stride;
619 ✗ src += width;
620 }
621 ✗ av_free(buf);
622 ✗ return 0;
623 }
624 #endif
625
626 18 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
627 const uint8_t *src, int size, int width, int lines)
628 {
629 int line;
630 int ret;
631
632
1/2
✓ Branch 0 taken 18 times.
✗ Branch 1 not taken.
 18 if (s->fill_order) {
633
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 18 times.
 18 if ((ret = deinvert_buffer(s, src, size)) < 0)
634 ✗ return ret;
635 18 src = s->deinvert_buf;
636 }
637 18 ret = ff_ccitt_unpack(s->avctx, src, size, dst, lines, stride,
638 s->compr, s->fax_opts);
639
2/4
✓ Branch 0 taken 18 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 18 times.
 18 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
640 ✗ for (line = 0; line < lines; line++) {
641 ✗ horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
642 ✗ dst += stride;
643 }
644 18 return ret;
645 }
646
647 ✗ static int dng_decode_jpeg(AVCodecContext *avctx, AVFrame *frame,
648 int tile_byte_count, int dst_x, int dst_y, int w, int h)
649 {
650 ✗ TiffContext *s = avctx->priv_data;
651 uint8_t *dst_data, *src_data;
652 uint32_t dst_offset; /* offset from dst buffer in pixels */
653 int is_single_comp, is_u16, pixel_size;
654 int ret;
655
656 ✗ if (tile_byte_count < 0 || tile_byte_count > bytestream2_get_bytes_left(&s->gb))
657 ✗ return AVERROR_INVALIDDATA;
658
659 /* Prepare a packet and send to the MJPEG decoder */
660 ✗ av_packet_unref(s->jpkt);
661 ✗ s->jpkt->data = (uint8_t*)s->gb.buffer;
662 ✗ s->jpkt->size = tile_byte_count;
663
664 ✗ if (s->is_bayer) {
665 ✗ MJpegDecodeContext *mjpegdecctx = s->avctx_mjpeg->priv_data;
666 /* We have to set this information here, there is no way to know if a given JPEG is a DNG-embedded
667 image or not from its own data (and we need that information when decoding it). */
668 ✗ mjpegdecctx->bayer = 1;
669 }
670
671 ✗ ret = avcodec_send_packet(s->avctx_mjpeg, s->jpkt);
672 ✗ if (ret < 0) {
673 ✗ av_log(avctx, AV_LOG_ERROR, "Error submitting a packet for decoding\n");
674 ✗ return ret;
675 }
676
677 ✗ ret = avcodec_receive_frame(s->avctx_mjpeg, s->jpgframe);
678 ✗ if (ret < 0) {
679 ✗ av_log(avctx, AV_LOG_ERROR, "JPEG decoding error: %s.\n", av_err2str(ret));
680
681 /* Normally skip, error if explode */
682 ✗ if (avctx->err_recognition & AV_EF_EXPLODE)
683 ✗ return AVERROR_INVALIDDATA;
684 else
685 ✗ return 0;
686 }
687
688 ✗ is_u16 = (s->bpp > 8);
689
690 /* Copy the outputted tile's pixels from 'jpgframe' to 'frame' (final buffer) */
691
692 ✗ if (s->jpgframe->width != s->avctx_mjpeg->width ||
693 ✗ s->jpgframe->height != s->avctx_mjpeg->height ||
694 ✗ s->jpgframe->format != s->avctx_mjpeg->pix_fmt)
695 ✗ return AVERROR_INVALIDDATA;
696
697 /* See dng_blit for explanation */
698 ✗ if (s->avctx_mjpeg->width == w * 2 &&
699 ✗ s->avctx_mjpeg->height == h / 2 &&
700 ✗ s->avctx_mjpeg->pix_fmt == AV_PIX_FMT_GRAY16LE) {
701 ✗ is_single_comp = 1;
702 ✗ } else if (s->avctx_mjpeg->width >= w &&
703 ✗ s->avctx_mjpeg->height >= h &&
704 ✗ s->avctx_mjpeg->pix_fmt == (is_u16 ? AV_PIX_FMT_GRAY16 : AV_PIX_FMT_GRAY8)
705 ) {
706 ✗ is_single_comp = 0;
707 } else
708 ✗ return AVERROR_INVALIDDATA;
709
710 ✗ pixel_size = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
711
712 ✗ if (is_single_comp && !is_u16) {
713 ✗ av_log(s->avctx, AV_LOG_ERROR, "DNGs with bpp <= 8 and 1 component are unsupported\n");
714 ✗ av_frame_unref(s->jpgframe);
715 ✗ return AVERROR_PATCHWELCOME;
716 }
717
718 ✗ dst_offset = dst_x + frame->linesize[0] * dst_y / pixel_size;
719 ✗ dst_data = frame->data[0] + dst_offset * pixel_size;
720 ✗ src_data = s->jpgframe->data[0];
721
722 ✗ dng_blit(s,
723 dst_data,
724 ✗ frame->linesize[0] / pixel_size,
725 src_data,
726 ✗ s->jpgframe->linesize[0] / pixel_size,
727 w,
728 h,
729 is_single_comp,
730 is_u16, 0);
731
732 ✗ av_frame_unref(s->jpgframe);
733
734 ✗ return 0;
735 }
736
737 579 static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
738 const uint8_t *src, int size, int strip_start, int lines)
739 {
740 PutByteContext pb;
741 int c, line, pixels, code, ret;
742 579 const uint8_t *ssrc = src;
743 579 int width = ((s->width * s->bpp) + 7) >> 3;
744 579 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(p->format);
745 1176 int is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) &&
746
3/4
✓ Branch 0 taken 18 times.
✓ Branch 1 taken 561 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 18 times.
 579 (desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
747 ✗ desc->nb_components >= 3;
748 int is_dng;
749
750
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 579 times.
 579 if (s->planar)
751 ✗ width /= s->bppcount;
752
753
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 579 times.
 579 if (size <= 0)
754 ✗ return AVERROR_INVALIDDATA;
755
756
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 579 times.
 579 if (is_yuv) {
757 ✗ int bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
758 ✗ s->subsampling[0] * s->subsampling[1] + 7) >> 3;
759 ✗ av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row);
760 ✗ if (s->yuv_line == NULL) {
761 ✗ av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
762 ✗ return AVERROR(ENOMEM);
763 }
764 ✗ dst = s->yuv_line;
765 ✗ stride = 0;
766
767 ✗ width = (s->width - 1) / s->subsampling[0] + 1;
768 ✗ width = width * s->subsampling[0] * s->subsampling[1] + 2*width;
769 ✗ av_assert0(width <= bytes_per_row);
770 ✗ av_assert0(s->bpp == 24);
771 }
772
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 579 times.
 579 if (s->is_bayer) {
773 ✗ av_assert0(width == (s->bpp * s->width + 7) >> 3);
774 }
775
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 579 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 579 av_assert0(!(s->is_bayer && is_yuv));
776
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 579 times.
 579 if (p->format == AV_PIX_FMT_GRAY12) {
777 ✗ av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, width);
778 ✗ if (s->yuv_line == NULL) {
779 ✗ av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
780 ✗ return AVERROR(ENOMEM);
781 }
782 ✗ dst = s->yuv_line;
783 ✗ stride = 0;
784 }
785
786
3/4
✓ Branch 0 taken 579 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 2 times.
✓ Branch 3 taken 577 times.
 579 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
787 #if CONFIG_ZLIB
788 2 return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines,
789 strip_start, is_yuv);
790 #else
791 av_log(s->avctx, AV_LOG_ERROR,
792 "zlib support not enabled, "
793 "deflate compression not supported\n");
794 return AVERROR(ENOSYS);
795 #endif
796 }
797
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 577 times.
 577 if (s->compr == TIFF_LZMA) {
798 #if CONFIG_LZMA
799 ✗ return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
800 strip_start, is_yuv);
801 #else
802 av_log(s->avctx, AV_LOG_ERROR,
803 "LZMA support not enabled\n");
804 return AVERROR(ENOSYS);
805 #endif
806 }
807
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 575 times.
 577 if (s->compr == TIFF_LZW) {
808
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
 2 if (s->fill_order) {
809 ✗ if ((ret = deinvert_buffer(s, src, size)) < 0)
810 ✗ return ret;
811 ✗ ssrc = src = s->deinvert_buf;
812 }
813
2/6
✓ Branch 0 taken 2 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 2 times.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 2 if (size > 1 && !src[0] && (src[1]&1)) {
814 ✗ av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
815 }
816
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 2 times.
 2 if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
817 ✗ av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
818 ✗ return ret;
819 }
820
2/2
✓ Branch 0 taken 16 times.
✓ Branch 1 taken 2 times.
 18 for (line = 0; line < lines; line++) {
821 16 pixels = ff_lzw_decode(s->lzw, dst, width);
822
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 16 times.
 16 if (pixels < width) {
823 ✗ av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
824 pixels, width);
825 ✗ return AVERROR_INVALIDDATA;
826 }
827
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 16 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 16 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
828 ✗ horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
829
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 16 times.
 16 if (is_yuv) {
830 ✗ unpack_yuv(s, p, dst, strip_start + line);
831 ✗ line += s->subsampling[1] - 1;
832
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 16 times.
 16 } else if (p->format == AV_PIX_FMT_GRAY12) {
833 ✗ unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
834 }
835 16 dst += stride;
836 }
837 2 return 0;
838 }
839
1/2
✓ Branch 0 taken 575 times.
✗ Branch 1 not taken.
 575 if (s->compr == TIFF_CCITT_RLE ||
840
2/2
✓ Branch 0 taken 557 times.
✓ Branch 1 taken 18 times.
 575 s->compr == TIFF_G3 ||
841
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 557 times.
 557 s->compr == TIFF_G4) {
842
2/4
✓ Branch 0 taken 18 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 18 times.
 18 if (is_yuv || p->format == AV_PIX_FMT_GRAY12)
843 ✗ return AVERROR_INVALIDDATA;
844
845 18 return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
846 }
847
848 557 bytestream2_init(&s->gb, src, size);
849
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 557 times.
 557 bytestream2_init_writer(&pb, dst, is_yuv ? s->yuv_line_size : (stride * lines));
850
851
2/4
✓ Branch 0 taken 557 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 557 times.
 557 is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
852
853 /* Decode JPEG-encoded DNGs with strips */
854
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 557 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 557 if (s->compr == TIFF_NEWJPEG && is_dng) {
855 ✗ if (s->strips > 1) {
856 ✗ av_log(s->avctx, AV_LOG_ERROR, "More than one DNG JPEG strips unsupported\n");
857 ✗ return AVERROR_PATCHWELCOME;
858 }
859 ✗ if (!s->is_bayer)
860 ✗ return AVERROR_PATCHWELCOME;
861 ✗ if ((ret = dng_decode_jpeg(s->avctx, p, s->stripsize, 0, 0, s->width, s->height)) < 0)
862 ✗ return ret;
863 ✗ return 0;
864 }
865
866
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 557 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 557 if (is_dng && stride == 0)
867 ✗ return AVERROR_INVALIDDATA;
868
869
2/2
✓ Branch 0 taken 3872 times.
✓ Branch 1 taken 557 times.
 4429 for (line = 0; line < lines; line++) {
870
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3872 times.
 3872 if (src - ssrc > size) {
871 ✗ av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
872 ✗ return AVERROR_INVALIDDATA;
873 }
874
875
2/4
✓ Branch 1 taken 3872 times.
✗ Branch 2 not taken.
✓ Branch 4 taken 3872 times.
✗ Branch 5 not taken.
 3872 if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb))
876 break;
877 3872 bytestream2_seek_p(&pb, stride * line, SEEK_SET);
878
2/3
✓ Branch 0 taken 128 times.
✓ Branch 1 taken 3744 times.
✗ Branch 2 not taken.
 3872 switch (s->compr) {
879 128 case TIFF_RAW:
880
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 128 times.
 128 if (ssrc + size - src < width)
881 ✗ return AVERROR_INVALIDDATA;
882
883
1/2
✓ Branch 0 taken 128 times.
✗ Branch 1 not taken.
 128 if (!s->fill_order) {
884
2/4
✓ Branch 0 taken 128 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 128 times.
 128 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 || s->is_bayer),
885 dst, 1, src, 0, width, 0);
886 } else {
887 int i;
888 ✗ for (i = 0; i < width; i++)
889 ✗ dst[i] = ff_reverse[src[i]];
890 }
891
892 /* Color processing for DNG images with uncompressed strips (non-tiled) */
893
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 128 times.
 128 if (is_dng) {
894 int is_u16, pixel_size_bytes, pixel_size_bits, elements;
895
896 ✗ is_u16 = (s->bpp / s->bppcount > 8);
897 ✗ pixel_size_bits = (is_u16 ? 16 : 8);
898 ✗ pixel_size_bytes = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
899
900 ✗ elements = width / pixel_size_bytes * pixel_size_bits / s->bpp * s->bppcount; // need to account for [1, 16] bpp
901 ✗ av_assert0 (elements * pixel_size_bytes <= FFABS(stride));
902 ✗ dng_blit(s,
903 dst,
904 0, // no stride, only 1 line
905 dst,
906 0, // no stride, only 1 line
907 elements,
908 1,
909 0, // single-component variation is only preset in JPEG-encoded DNGs
910 is_u16,
911 ✗ (line + strip_start)&1);
912 }
913
914 128 src += width;
915 128 break;
916 3744 case TIFF_PACKBITS:
917
2/2
✓ Branch 0 taken 36356 times.
✓ Branch 1 taken 3744 times.
 40100 for (pixels = 0; pixels < width;) {
918
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 36356 times.
 36356 if (ssrc + size - src < 2) {
919 ✗ av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
920 ✗ return AVERROR_INVALIDDATA;
921 }
922
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 36356 times.
 36356 code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
923
2/2
✓ Branch 0 taken 34241 times.
✓ Branch 1 taken 2115 times.
 36356 if (code >= 0) {
924 34241 code++;
925
1/2
✓ Branch 0 taken 34241 times.
✗ Branch 1 not taken.
 34241 if (pixels + code > width ||
926
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 34241 times.
 34241 ssrc + size - src < code) {
927 ✗ av_log(s->avctx, AV_LOG_ERROR,
928 "Copy went out of bounds\n");
929 ✗ return AVERROR_INVALIDDATA;
930 }
931 34241 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
932 dst, 1, src, 0, code, pixels);
933 34241 src += code;
934 34241 pixels += code;
935
1/2
✓ Branch 0 taken 2115 times.
✗ Branch 1 not taken.
 2115 } else if (code != -128) { // -127..-1
936 2115 code = (-code) + 1;
937
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2115 times.
 2115 if (pixels + code > width) {
938 ✗ av_log(s->avctx, AV_LOG_ERROR,
939 "Run went out of bounds\n");
940 ✗ return AVERROR_INVALIDDATA;
941 }
942 2115 c = *src++;
943 2115 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
944 dst, 0, NULL, c, code, pixels);
945 2115 pixels += code;
946 }
947 }
948
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3744 times.
 3744 if (s->fill_order) {
949 int i;
950 ✗ for (i = 0; i < width; i++)
951 ✗ dst[i] = ff_reverse[dst[i]];
952 }
953 3744 break;
954 }
955
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3872 times.
 3872 if (is_yuv) {
956 ✗ unpack_yuv(s, p, dst, strip_start + line);
957 ✗ line += s->subsampling[1] - 1;
958
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3872 times.
 3872 } else if (p->format == AV_PIX_FMT_GRAY12) {
959 ✗ unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
960 }
961 3872 dst += stride;
962 }
963 557 return 0;
964 }
965
966 ✗ static int dng_decode_tiles(AVCodecContext *avctx, AVFrame *frame,
967 const AVPacket *avpkt)
968 {
969 ✗ TiffContext *s = avctx->priv_data;
970 int tile_idx;
971 int tile_offset_offset, tile_offset;
972 int tile_byte_count_offset, tile_byte_count;
973 int tile_count_x, tile_count_y;
974 int tile_width, tile_length;
975 int has_width_leftover, has_height_leftover;
976 ✗ int tile_x = 0, tile_y = 0;
977 ✗ int pos_x = 0, pos_y = 0;
978 int ret;
979
980 ✗ if (s->tile_width <= 0 || s->tile_length <= 0)
981 ✗ return AVERROR_INVALIDDATA;
982
983 ✗ has_width_leftover = (s->width % s->tile_width != 0);
984 ✗ has_height_leftover = (s->height % s->tile_length != 0);
985
986 /* Calculate tile counts (round up) */
987 ✗ tile_count_x = (s->width + s->tile_width - 1) / s->tile_width;
988 ✗ tile_count_y = (s->height + s->tile_length - 1) / s->tile_length;
989
990 /* Iterate over the number of tiles */
991 ✗ for (tile_idx = 0; tile_idx < tile_count_x * tile_count_y; tile_idx++) {
992 ✗ tile_x = tile_idx % tile_count_x;
993 ✗ tile_y = tile_idx / tile_count_x;
994
995 ✗ if (has_width_leftover && tile_x == tile_count_x - 1) // If on the right-most tile
996 ✗ tile_width = s->width % s->tile_width;
997 else
998 ✗ tile_width = s->tile_width;
999
1000 ✗ if (has_height_leftover && tile_y == tile_count_y - 1) // If on the bottom-most tile
1001 ✗ tile_length = s->height % s->tile_length;
1002 else
1003 ✗ tile_length = s->tile_length;
1004
1005 /* Read tile offset */
1006 ✗ tile_offset_offset = s->tile_offsets_offset + tile_idx * sizeof(int);
1007 ✗ bytestream2_seek(&s->gb, tile_offset_offset, SEEK_SET);
1008 ✗ tile_offset = ff_tget_long(&s->gb, s->le);
1009
1010 /* Read tile byte size */
1011 ✗ tile_byte_count_offset = s->tile_byte_counts_offset + tile_idx * sizeof(int);
1012 ✗ bytestream2_seek(&s->gb, tile_byte_count_offset, SEEK_SET);
1013 ✗ tile_byte_count = ff_tget_long(&s->gb, s->le);
1014
1015 /* Seek to tile data */
1016 ✗ bytestream2_seek(&s->gb, tile_offset, SEEK_SET);
1017
1018 /* Decode JPEG tile and copy it in the reference frame */
1019 ✗ ret = dng_decode_jpeg(avctx, frame, tile_byte_count, pos_x, pos_y, tile_width, tile_length);
1020
1021 ✗ if (ret < 0)
1022 ✗ return ret;
1023
1024 /* Advance current positions */
1025 ✗ pos_x += tile_width;
1026 ✗ if (tile_x == tile_count_x - 1) { // If on the right edge
1027 ✗ pos_x = 0;
1028 ✗ pos_y += tile_length;
1029 }
1030 }
1031
1032 /* Frame is ready to be output */
1033 ✗ frame->pict_type = AV_PICTURE_TYPE_I;
1034 ✗ frame->flags |= AV_FRAME_FLAG_KEY;
1035
1036 ✗ return avpkt->size;
1037 }
1038
1039 33 static int init_image(TiffContext *s, AVFrame *frame)
1040 {
1041 int ret;
1042 33 int create_gray_palette = 0;
1043
1044 // make sure there is no aliasing in the following switch
1045
2/4
✓ Branch 0 taken 33 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 33 times.
 33 if (s->bpp > 128 || s->bppcount >= 10) {
1046 ✗ av_log(s->avctx, AV_LOG_ERROR,
1047 "Unsupported image parameters: bpp=%d, bppcount=%d\n",
1048 s->bpp, s->bppcount);
1049 ✗ return AVERROR_INVALIDDATA;
1050 }
1051
1052
4/23
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
✓ Branch 6 taken 17 times.
✗ Branch 7 not taken.
✗ Branch 8 not taken.
✗ Branch 9 not taken.
✗ Branch 10 not taken.
✗ Branch 11 not taken.
✗ Branch 12 not taken.
✗ Branch 13 not taken.
✗ Branch 14 not taken.
✗ Branch 15 not taken.
✗ Branch 16 not taken.
✗ Branch 17 not taken.
✓ Branch 18 taken 6 times.
✓ Branch 19 taken 6 times.
✗ Branch 20 not taken.
✗ Branch 21 not taken.
✗ Branch 22 not taken.
 33 switch (s->planar * 10000 + s->bpp * 10 + s->bppcount + s->is_bayer * 100000) {
1053 4 case 11:
1054
1/2
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
 4 if (!s->palette_is_set) {
1055 4 s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
1056 4 break;
1057 }
1058 case 21:
1059 case 41:
1060 ✗ s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
1061 ✗ if (!s->palette_is_set) {
1062 ✗ create_gray_palette = 1;
1063 }
1064 ✗ break;
1065 ✗ case 81:
1066 ✗ s->avctx->pix_fmt = s->palette_is_set ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_GRAY8;
1067 ✗ break;
1068 ✗ case 121:
1069 ✗ s->avctx->pix_fmt = AV_PIX_FMT_GRAY12;
1070 ✗ break;
1071 ✗ case 100081:
1072 ✗ switch (AV_RL32(s->pattern)) {
1073 ✗ case 0x02010100:
1074 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB8;
1075 ✗ break;
1076 ✗ case 0x00010102:
1077 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR8;
1078 ✗ break;
1079 ✗ case 0x01000201:
1080 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG8;
1081 ✗ break;
1082 ✗ case 0x01020001:
1083 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG8;
1084 ✗ break;
1085 ✗ default:
1086 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1087 ✗ AV_RL32(s->pattern));
1088 ✗ return AVERROR_PATCHWELCOME;
1089 }
1090 ✗ break;
1091 ✗ case 100101:
1092 case 100121:
1093 case 100141:
1094 case 100161:
1095 ✗ switch (AV_RL32(s->pattern)) {
1096 ✗ case 0x02010100:
1097 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB16;
1098 ✗ break;
1099 ✗ case 0x00010102:
1100 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR16;
1101 ✗ break;
1102 ✗ case 0x01000201:
1103 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG16;
1104 ✗ break;
1105 ✗ case 0x01020001:
1106 ✗ s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG16;
1107 ✗ break;
1108 ✗ default:
1109 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1110 ✗ AV_RL32(s->pattern));
1111 ✗ return AVERROR_PATCHWELCOME;
1112 }
1113 ✗ break;
1114 17 case 243:
1115
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 17 times.
 17 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1116 ✗ if (s->subsampling[0] == 1 && s->subsampling[1] == 1) {
1117 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV444P;
1118 ✗ } else if (s->subsampling[0] == 2 && s->subsampling[1] == 1) {
1119 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV422P;
1120 ✗ } else if (s->subsampling[0] == 4 && s->subsampling[1] == 1) {
1121 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV411P;
1122 ✗ } else if (s->subsampling[0] == 1 && s->subsampling[1] == 2) {
1123 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV440P;
1124 ✗ } else if (s->subsampling[0] == 2 && s->subsampling[1] == 2) {
1125 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV420P;
1126 ✗ } else if (s->subsampling[0] == 4 && s->subsampling[1] == 4) {
1127 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YUV410P;
1128 } else {
1129 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr subsampling\n");
1130 ✗ return AVERROR_PATCHWELCOME;
1131 }
1132 } else
1133 17 s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
1134 17 break;
1135 ✗ case 161:
1136 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
1137 ✗ break;
1138 ✗ case 162:
1139 ✗ s->avctx->pix_fmt = AV_PIX_FMT_YA8;
1140 ✗ break;
1141 ✗ case 322:
1142 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_YA16LE : AV_PIX_FMT_YA16BE;
1143 ✗ break;
1144 ✗ case 324:
1145 ✗ s->avctx->pix_fmt = s->photometric == TIFF_PHOTOMETRIC_SEPARATED ? AV_PIX_FMT_RGB0 : AV_PIX_FMT_RGBA;
1146 ✗ break;
1147 ✗ case 405:
1148 ✗ if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED)
1149 ✗ s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
1150 else {
1151 ✗ av_log(s->avctx, AV_LOG_ERROR,
1152 "bpp=40 without PHOTOMETRIC_SEPARATED is unsupported\n");
1153 ✗ return AVERROR_PATCHWELCOME;
1154 }
1155 ✗ break;
1156 ✗ case 483:
1157 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
1158 ✗ break;
1159 ✗ case 644:
1160 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
1161 ✗ break;
1162 ✗ case 10243:
1163 ✗ s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
1164 ✗ break;
1165 ✗ case 10324:
1166 ✗ s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
1167 ✗ break;
1168 ✗ case 10483:
1169 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE;
1170 ✗ break;
1171 ✗ case 10644:
1172 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE;
1173 ✗ break;
1174 6 case 963:
1175
1/2
✓ Branch 0 taken 6 times.
✗ Branch 1 not taken.
 6 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBF32LE : AV_PIX_FMT_RGBF32BE;
1176 6 break;
1177 6 case 1284:
1178
1/2
✓ Branch 0 taken 6 times.
✗ Branch 1 not taken.
 6 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBAF32LE : AV_PIX_FMT_RGBAF32BE;
1179 6 break;
1180 ✗ case 10963:
1181 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRPF32LE : AV_PIX_FMT_GBRPF32BE;
1182 ✗ break;
1183 ✗ case 11284:
1184 ✗ s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAPF32LE : AV_PIX_FMT_GBRAPF32BE;
1185 ✗ break;
1186 ✗ default:
1187 ✗ av_log(s->avctx, AV_LOG_ERROR,
1188 "This format is not supported (bpp=%d, bppcount=%d)\n",
1189 s->bpp, s->bppcount);
1190 ✗ return AVERROR_INVALIDDATA;
1191 }
1192
1193
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 33 times.
 33 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1194 ✗ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
1195 ✗ if((desc->flags & AV_PIX_FMT_FLAG_RGB) ||
1196 ✗ !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) ||
1197 ✗ desc->nb_components < 3) {
1198 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr variant\n");
1199 ✗ return AVERROR_INVALIDDATA;
1200 }
1201 }
1202
1203
3/4
✓ Branch 0 taken 22 times.
✓ Branch 1 taken 11 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 22 times.
 33 if (s->width != s->avctx->width || s->height != s->avctx->height) {
1204 11 ret = ff_set_dimensions(s->avctx, s->width, s->height);
1205
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 11 times.
 11 if (ret < 0)
1206 ✗ return ret;
1207 }
1208
1209
2/2
✓ Branch 0 taken 11 times.
✓ Branch 1 taken 22 times.
 33 if (s->avctx->skip_frame >= AVDISCARD_ALL)
1210 11 return 0;
1211
1212
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 22 times.
 22 if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
1213 ✗ return ret;
1214
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 22 times.
 22 if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
1215 ✗ if (!create_gray_palette)
1216 ✗ memcpy(frame->data[1], s->palette, sizeof(s->palette));
1217 else {
1218 /* make default grayscale pal */
1219 int i;
1220 ✗ uint32_t *pal = (uint32_t *)frame->data[1];
1221 ✗ for (i = 0; i < 1<<s->bpp; i++)
1222 ✗ pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
1223 }
1224 }
1225 22 return 1;
1226 }
1227
1228 42 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
1229 {
1230
2/2
✓ Branch 0 taken 21 times.
✓ Branch 1 taken 21 times.
 42 int offset = tag == TIFF_YRES ? 2 : 0;
1231 42 s->res[offset++] = num;
1232 42 s->res[offset] = den;
1233
5/8
✓ Branch 0 taken 42 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 42 times.
✗ Branch 3 not taken.
✓ Branch 4 taken 33 times.
✓ Branch 5 taken 9 times.
✓ Branch 6 taken 33 times.
✗ Branch 7 not taken.
 42 if (s->res[0] && s->res[1] && s->res[2] && s->res[3]) {
1234 33 uint64_t num = s->res[2] * (uint64_t)s->res[1];
1235 33 uint64_t den = s->res[0] * (uint64_t)s->res[3];
1236
2/4
✓ Branch 0 taken 33 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 33 times.
 33 if (num > INT64_MAX || den > INT64_MAX) {
1237 ✗ num = num >> 1;
1238 ✗ den = den >> 1;
1239 }
1240 33 av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den,
1241 num, den, INT32_MAX);
1242
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 33 times.
 33 if (!s->avctx->sample_aspect_ratio.den)
1243 ✗ s->avctx->sample_aspect_ratio = (AVRational) {0, 1};
1244 }
1245 42 }
1246
1247 519 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
1248 {
1249 AVFrameSideData *sd;
1250 GetByteContext gb_temp;
1251 519 unsigned tag, type, count, off, value = 0, value2 = 1; // value2 is a denominator so init. to 1
1252 int i, start;
1253 int pos;
1254 int ret;
1255 double *dp;
1256
1257 519 ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
1258
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 519 times.
 519 if (ret < 0) {
1259 ✗ goto end;
1260 }
1261
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 519 times.
 519 if (tag <= s->last_tag)
1262 ✗ return AVERROR_INVALIDDATA;
1263
1264 // We ignore TIFF_STRIP_SIZE as it is sometimes in the logic but wrong order around TIFF_STRIP_OFFS
1265
2/2
✓ Branch 0 taken 486 times.
✓ Branch 1 taken 33 times.
 519 if (tag != TIFF_STRIP_SIZE)
1266 486 s->last_tag = tag;
1267
1268 519 off = bytestream2_tell(&s->gb);
1269
2/2
✓ Branch 0 taken 374 times.
✓ Branch 1 taken 145 times.
 519 if (count == 1) {
1270
2/4
✓ Branch 0 taken 332 times.
✓ Branch 1 taken 42 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 374 switch (type) {
1271 332 case TIFF_BYTE:
1272 case TIFF_SHORT:
1273 case TIFF_LONG:
1274 332 value = ff_tget(&s->gb, type, s->le);
1275 332 break;
1276 42 case TIFF_RATIONAL:
1277 42 value = ff_tget_long(&s->gb, s->le);
1278 42 value2 = ff_tget_long(&s->gb, s->le);
1279
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 42 times.
 42 if (!value2) {
1280 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator in rational\n");
1281 ✗ value2 = 1;
1282 }
1283
1284 42 break;
1285 ✗ case TIFF_STRING:
1286 ✗ if (count <= 4) {
1287 ✗ break;
1288 }
1289 default:
1290 ✗ value = UINT_MAX;
1291 }
1292 }
1293
1294
20/54
✓ Branch 0 taken 15 times.
✓ Branch 1 taken 33 times.
✓ Branch 2 taken 33 times.
✓ Branch 3 taken 33 times.
✓ Branch 4 taken 33 times.
✓ Branch 5 taken 33 times.
✓ Branch 6 taken 33 times.
✓ Branch 7 taken 33 times.
✓ Branch 8 taken 33 times.
✓ Branch 9 taken 42 times.
✗ Branch 10 not taken.
✗ Branch 11 not taken.
✗ Branch 12 not taken.
✗ Branch 13 not taken.
✓ Branch 14 taken 8 times.
✗ Branch 15 not taken.
✗ Branch 16 not taken.
✗ Branch 17 not taken.
✗ Branch 18 not taken.
✗ Branch 19 not taken.
✗ Branch 20 not taken.
✓ Branch 21 taken 33 times.
✓ Branch 22 taken 16 times.
✗ Branch 23 not taken.
✓ Branch 24 taken 18 times.
✗ Branch 25 not taken.
✗ Branch 26 not taken.
✗ Branch 27 not taken.
✗ Branch 28 not taken.
✗ Branch 29 not taken.
✗ Branch 30 not taken.
✗ Branch 31 not taken.
✗ Branch 32 not taken.
✗ Branch 33 not taken.
✗ Branch 34 not taken.
✗ Branch 35 not taken.
✗ Branch 36 not taken.
✓ Branch 37 taken 2 times.
✓ Branch 38 taken 6 times.
✗ Branch 39 not taken.
✓ Branch 40 taken 4 times.
✗ Branch 41 not taken.
✗ Branch 42 not taken.
✗ Branch 43 not taken.
✓ Branch 44 taken 12 times.
✓ Branch 45 taken 2 times.
✗ Branch 46 not taken.
✗ Branch 47 not taken.
✗ Branch 48 not taken.
✗ Branch 49 not taken.
✗ Branch 50 not taken.
✗ Branch 51 not taken.
✗ Branch 52 not taken.
✓ Branch 53 taken 97 times.
 519 switch (tag) {
1295 15 case TIFF_SUBFILE:
1296 15 s->is_thumbnail = (value != 0);
1297 15 break;
1298 33 case TIFF_WIDTH:
1299 33 s->width = value;
1300 33 break;
1301 33 case TIFF_HEIGHT:
1302 33 s->height = value;
1303 33 break;
1304 33 case TIFF_BPP:
1305
2/4
✓ Branch 0 taken 33 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 33 times.
 33 if (count > 5 || count <= 0) {
1306 ✗ av_log(s->avctx, AV_LOG_ERROR,
1307 "This format is not supported (bpp=%d, %d components)\n",
1308 value, count);
1309 ✗ return AVERROR_INVALIDDATA;
1310 }
1311 33 s->bppcount = count;
1312
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 29 times.
 33 if (count == 1)
1313 4 s->bpp = value;
1314 else {
1315
1/2
✓ Branch 0 taken 29 times.
✗ Branch 1 not taken.
 29 switch (type) {
1316 29 case TIFF_BYTE:
1317 case TIFF_SHORT:
1318 case TIFF_LONG:
1319 29 s->bpp = 0;
1320
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 29 times.
 29 if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
1321 ✗ return AVERROR_INVALIDDATA;
1322
2/2
✓ Branch 0 taken 93 times.
✓ Branch 1 taken 29 times.
 122 for (i = 0; i < count; i++)
1323 93 s->bpp += ff_tget(&s->gb, type, s->le);
1324 29 break;
1325 ✗ default:
1326 ✗ s->bpp = -1;
1327 }
1328 }
1329 33 break;
1330 33 case TIFF_SAMPLES_PER_PIXEL:
1331
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 33 times.
 33 if (count != 1) {
1332 ✗ av_log(s->avctx, AV_LOG_ERROR,
1333 "Samples per pixel requires a single value, many provided\n");
1334 ✗ return AVERROR_INVALIDDATA;
1335 }
1336
2/4
✓ Branch 0 taken 33 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 33 times.
 33 if (value > 5 || value <= 0) {
1337 ✗ av_log(s->avctx, AV_LOG_ERROR,
1338 "Invalid samples per pixel %d\n", value);
1339 ✗ return AVERROR_INVALIDDATA;
1340 }
1341
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 29 times.
 33 if (s->bppcount == 1)
1342 4 s->bpp *= value;
1343 33 s->bppcount = value;
1344 33 break;
1345 33 case TIFF_COMPR:
1346 33 s->compr = value;
1347 33 av_log(s->avctx, AV_LOG_DEBUG, "compression: %d\n", s->compr);
1348 33 s->predictor = 0;
1349
3/6
✓ Branch 0 taken 25 times.
✓ Branch 1 taken 4 times.
✓ Branch 2 taken 4 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 33 switch (s->compr) {
1350 25 case TIFF_RAW:
1351 case TIFF_PACKBITS:
1352 case TIFF_LZW:
1353 case TIFF_CCITT_RLE:
1354 25 break;
1355 4 case TIFF_G3:
1356 case TIFF_G4:
1357 4 s->fax_opts = 0;
1358 4 break;
1359 4 case TIFF_DEFLATE:
1360 case TIFF_ADOBE_DEFLATE:
1361 #if CONFIG_ZLIB
1362 4 break;
1363 #else
1364 av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
1365 return AVERROR(ENOSYS);
1366 #endif
1367 ✗ case TIFF_JPEG:
1368 case TIFF_NEWJPEG:
1369 ✗ s->is_jpeg = 1;
1370 ✗ break;
1371 ✗ case TIFF_LZMA:
1372 #if CONFIG_LZMA
1373 ✗ break;
1374 #else
1375 av_log(s->avctx, AV_LOG_ERROR, "LZMA not compiled in\n");
1376 return AVERROR(ENOSYS);
1377 #endif
1378 ✗ default:
1379 ✗ av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
1380 ✗ s->compr);
1381 ✗ return AVERROR_INVALIDDATA;
1382 }
1383 33 break;
1384 33 case TIFF_ROWSPERSTRIP:
1385
4/6
✓ Branch 0 taken 33 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 19 times.
✓ Branch 3 taken 14 times.
✗ Branch 4 not taken.
✓ Branch 5 taken 19 times.
 33 if (!value || (type == TIFF_LONG && value == UINT_MAX))
1386 ✗ value = s->height;
1387 33 s->rps = FFMIN(value, s->height);
1388 33 break;
1389 33 case TIFF_STRIP_OFFS:
1390
2/2
✓ Branch 0 taken 14 times.
✓ Branch 1 taken 19 times.
 33 if (count == 1) {
1391
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 14 times.
 14 if (value > INT_MAX) {
1392 ✗ av_log(s->avctx, AV_LOG_ERROR,
1393 "strippos %u too large\n", value);
1394 ✗ return AVERROR_INVALIDDATA;
1395 }
1396 14 s->strippos = 0;
1397 14 s->stripoff = value;
1398 } else
1399 19 s->strippos = off;
1400 33 s->strips = count;
1401
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 31 times.
 33 if (s->strips == s->bppcount)
1402 2 s->rps = s->height;
1403 33 s->sot = type;
1404 33 break;
1405 33 case TIFF_STRIP_SIZE:
1406
2/2
✓ Branch 0 taken 14 times.
✓ Branch 1 taken 19 times.
 33 if (count == 1) {
1407
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 14 times.
 14 if (value > INT_MAX) {
1408 ✗ av_log(s->avctx, AV_LOG_ERROR,
1409 "stripsize %u too large\n", value);
1410 ✗ return AVERROR_INVALIDDATA;
1411 }
1412 14 s->stripsizesoff = 0;
1413 14 s->stripsize = value;
1414 14 s->strips = 1;
1415 } else {
1416 19 s->stripsizesoff = off;
1417 }
1418 33 s->strips = count;
1419 33 s->sstype = type;
1420 33 break;
1421 42 case TIFF_XRES:
1422 case TIFF_YRES:
1423 42 set_sar(s, tag, value, value2);
1424 42 break;
1425 ✗ case TIFF_TILE_OFFSETS:
1426 ✗ s->tile_offsets_offset = off;
1427 ✗ s->is_tiled = 1;
1428 ✗ break;
1429 ✗ case TIFF_TILE_BYTE_COUNTS:
1430 ✗ s->tile_byte_counts_offset = off;
1431 ✗ break;
1432 ✗ case TIFF_TILE_LENGTH:
1433 ✗ s->tile_length = value;
1434 ✗ break;
1435 ✗ case TIFF_TILE_WIDTH:
1436 ✗ s->tile_width = value;
1437 ✗ break;
1438 8 case TIFF_PREDICTOR:
1439 8 s->predictor = value;
1440 8 break;
1441 ✗ case TIFF_SUB_IFDS:
1442 ✗ if (count == 1)
1443 ✗ s->sub_ifd = value;
1444 ✗ else if (count > 1)
1445 ✗ s->sub_ifd = ff_tget_long(&s->gb, s->le); /** Only get the first SubIFD */
1446 ✗ break;
1447 ✗ case TIFF_GRAY_RESPONSE_CURVE:
1448 case DNG_LINEARIZATION_TABLE:
1449 ✗ if (count < 1 || count > FF_ARRAY_ELEMS(s->dng_lut))
1450 ✗ return AVERROR_INVALIDDATA;
1451 ✗ for (int i = 0; i < count; i++)
1452 ✗ s->dng_lut[i] = ff_tget(&s->gb, type, s->le);
1453 ✗ s->white_level = s->dng_lut[count-1];
1454 ✗ break;
1455 ✗ case DNG_BLACK_LEVEL:
1456 ✗ if (count > FF_ARRAY_ELEMS(s->black_level))
1457 ✗ return AVERROR_INVALIDDATA;
1458 ✗ s->black_level[0] = value / (float)value2;
1459 ✗ for (int i = 0; i < count && count > 1; i++) {
1460 ✗ if (type == TIFF_RATIONAL) {
1461 ✗ value = ff_tget_long(&s->gb, s->le);
1462 ✗ value2 = ff_tget_long(&s->gb, s->le);
1463 ✗ if (!value2) {
1464 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1465 ✗ value2 = 1;
1466 }
1467
1468 ✗ s->black_level[i] = value / (float)value2;
1469 ✗ } else if (type == TIFF_SRATIONAL) {
1470 ✗ int value = ff_tget_long(&s->gb, s->le);
1471 ✗ int value2 = ff_tget_long(&s->gb, s->le);
1472 ✗ if (!value2) {
1473 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1474 ✗ value2 = 1;
1475 }
1476
1477 ✗ s->black_level[i] = value / (float)value2;
1478 } else {
1479 ✗ s->black_level[i] = ff_tget(&s->gb, type, s->le);
1480 }
1481 }
1482 ✗ for (int i = count; i < 4 && count > 0; i++)
1483 ✗ s->black_level[i] = s->black_level[count - 1];
1484 ✗ break;
1485 ✗ case DNG_WHITE_LEVEL:
1486 ✗ s->white_level = value;
1487 ✗ break;
1488 ✗ case TIFF_CFA_PATTERN_DIM:
1489 ✗ if (count != 2 || (ff_tget(&s->gb, type, s->le) != 2 &&
1490 ✗ ff_tget(&s->gb, type, s->le) != 2)) {
1491 ✗ av_log(s->avctx, AV_LOG_ERROR, "CFA Pattern dimensions are not 2x2\n");
1492 ✗ return AVERROR_INVALIDDATA;
1493 }
1494 ✗ break;
1495 ✗ case TIFF_CFA_PATTERN:
1496 ✗ s->is_bayer = 1;
1497 ✗ s->pattern[0] = ff_tget(&s->gb, type, s->le);
1498 ✗ s->pattern[1] = ff_tget(&s->gb, type, s->le);
1499 ✗ s->pattern[2] = ff_tget(&s->gb, type, s->le);
1500 ✗ s->pattern[3] = ff_tget(&s->gb, type, s->le);
1501 ✗ break;
1502
1/3
✓ Branch 0 taken 33 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
 33 case TIFF_PHOTOMETRIC:
1503 switch (value) {
1504 33 case TIFF_PHOTOMETRIC_WHITE_IS_ZERO:
1505 case TIFF_PHOTOMETRIC_BLACK_IS_ZERO:
1506 case TIFF_PHOTOMETRIC_RGB:
1507 case TIFF_PHOTOMETRIC_PALETTE:
1508 case TIFF_PHOTOMETRIC_SEPARATED:
1509 case TIFF_PHOTOMETRIC_YCBCR:
1510 case TIFF_PHOTOMETRIC_CFA:
1511 case TIFF_PHOTOMETRIC_LINEAR_RAW: // Used by DNG images
1512 33 s->photometric = value;
1513 33 break;
1514 ✗ case TIFF_PHOTOMETRIC_ALPHA_MASK:
1515 case TIFF_PHOTOMETRIC_CIE_LAB:
1516 case TIFF_PHOTOMETRIC_ICC_LAB:
1517 case TIFF_PHOTOMETRIC_ITU_LAB:
1518 case TIFF_PHOTOMETRIC_LOG_L:
1519 case TIFF_PHOTOMETRIC_LOG_LUV:
1520 ✗ avpriv_report_missing_feature(s->avctx,
1521 "PhotometricInterpretation 0x%04X",
1522 value);
1523 ✗ return AVERROR_PATCHWELCOME;
1524 ✗ default:
1525 ✗ av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
1526 "unknown\n", value);
1527 ✗ return AVERROR_INVALIDDATA;
1528 }
1529 33 break;
1530 16 case TIFF_FILL_ORDER:
1531
2/4
✓ Branch 0 taken 16 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 16 times.
 16 if (value < 1 || value > 2) {
1532 ✗ av_log(s->avctx, AV_LOG_ERROR,
1533 "Unknown FillOrder value %d, trying default one\n", value);
1534 ✗ value = 1;
1535 }
1536 16 s->fill_order = value - 1;
1537 16 break;
1538 ✗ case TIFF_PAL: {
1539 GetByteContext pal_gb[3];
1540 ✗ off = type_sizes[type];
1541 ✗ if (count / 3 > 256 ||
1542 ✗ bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
1543 ✗ return AVERROR_INVALIDDATA;
1544
1545 ✗ pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
1546 ✗ bytestream2_skip(&pal_gb[1], count / 3 * off);
1547 ✗ bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
1548
1549 ✗ off = (type_sizes[type] - 1) << 3;
1550 ✗ if (off > 31U) {
1551 ✗ av_log(s->avctx, AV_LOG_ERROR, "palette shift %d is out of range\n", off);
1552 ✗ return AVERROR_INVALIDDATA;
1553 }
1554
1555 ✗ for (i = 0; i < count / 3; i++) {
1556 ✗ uint32_t p = 0xFF000000;
1557 ✗ p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
1558 ✗ p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
1559 ✗ p |= ff_tget(&pal_gb[2], type, s->le) >> off;
1560 ✗ s->palette[i] = p;
1561 }
1562 ✗ s->palette_is_set = 1;
1563 ✗ break;
1564 }
1565 18 case TIFF_PLANAR:
1566 18 s->planar = value == 2;
1567 18 break;
1568 ✗ case TIFF_YCBCR_SUBSAMPLING:
1569 ✗ if (count != 2) {
1570 ✗ av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n");
1571 ✗ return AVERROR_INVALIDDATA;
1572 }
1573 ✗ for (i = 0; i < count; i++) {
1574 ✗ s->subsampling[i] = ff_tget(&s->gb, type, s->le);
1575 ✗ if (s->subsampling[i] <= 0) {
1576 ✗ av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]);
1577 ✗ s->subsampling[i] = 1;
1578 ✗ return AVERROR_INVALIDDATA;
1579 }
1580 }
1581 ✗ break;
1582 ✗ case TIFF_T4OPTIONS:
1583 ✗ if (s->compr == TIFF_G3)
1584 ✗ s->fax_opts = value;
1585 ✗ break;
1586 ✗ case TIFF_T6OPTIONS:
1587 ✗ if (s->compr == TIFF_G4)
1588 ✗ s->fax_opts = value;
1589 ✗ break;
1590 #define ADD_METADATA(count, name, sep)\
1591 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
1592 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
1593 goto end;\
1594 }
1595 ✗ case TIFF_MODEL_PIXEL_SCALE:
1596 ✗ ADD_METADATA(count, "ModelPixelScaleTag", NULL);
1597 ✗ break;
1598 ✗ case TIFF_MODEL_TRANSFORMATION:
1599 ✗ ADD_METADATA(count, "ModelTransformationTag", NULL);
1600 ✗ break;
1601 ✗ case TIFF_MODEL_TIEPOINT:
1602 ✗ ADD_METADATA(count, "ModelTiepointTag", NULL);
1603 ✗ break;
1604 ✗ case TIFF_GEO_KEY_DIRECTORY:
1605 ✗ if (s->geotag_count) {
1606 ✗ avpriv_request_sample(s->avctx, "Multiple geo key directories");
1607 ✗ return AVERROR_INVALIDDATA;
1608 }
1609 ✗ ADD_METADATA(1, "GeoTIFF_Version", NULL);
1610 ✗ ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
1611 ✗ s->geotag_count = ff_tget_short(&s->gb, s->le);
1612 ✗ if (s->geotag_count > count / 4 - 1) {
1613 ✗ s->geotag_count = count / 4 - 1;
1614 ✗ av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
1615 }
1616 ✗ if ( bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4
1617 ✗ || s->geotag_count == 0) {
1618 ✗ s->geotag_count = 0;
1619 ✗ return -1;
1620 }
1621 ✗ s->geotags = av_calloc(s->geotag_count, sizeof(*s->geotags));
1622 ✗ if (!s->geotags) {
1623 ✗ av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1624 ✗ s->geotag_count = 0;
1625 ✗ goto end;
1626 }
1627 ✗ for (i = 0; i < s->geotag_count; i++) {
1628 unsigned val;
1629 ✗ s->geotags[i].key = ff_tget_short(&s->gb, s->le);
1630 ✗ s->geotags[i].type = ff_tget_short(&s->gb, s->le);
1631 ✗ s->geotags[i].count = ff_tget_short(&s->gb, s->le);
1632 ✗ val = ff_tget_short(&s->gb, s->le);
1633
1634 ✗ if (!s->geotags[i].type) {
1635 ✗ const char *str = get_geokey_val(s->geotags[i].key, val);
1636
1637 ✗ s->geotags[i].val = str ? av_strdup(str) : av_asprintf("Unknown-%u", val);
1638 ✗ if (!s->geotags[i].val)
1639 ✗ return AVERROR(ENOMEM);
1640 } else
1641 ✗ s->geotags[i].offset = val;
1642 }
1643 ✗ break;
1644 ✗ case TIFF_GEO_DOUBLE_PARAMS:
1645 ✗ if (count >= INT_MAX / sizeof(int64_t))
1646 ✗ return AVERROR_INVALIDDATA;
1647 ✗ if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
1648 ✗ return AVERROR_INVALIDDATA;
1649 ✗ dp = av_malloc_array(count, sizeof(double));
1650 ✗ if (!dp) {
1651 ✗ av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1652 ✗ goto end;
1653 }
1654 ✗ for (i = 0; i < count; i++)
1655 ✗ dp[i] = ff_tget_double(&s->gb, s->le);
1656 ✗ for (i = 0; i < s->geotag_count; i++) {
1657 ✗ if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
1658 ✗ if (s->geotags[i].count == 0
1659 ✗ || s->geotags[i].offset + s->geotags[i].count > count) {
1660 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1661 ✗ } else if (s->geotags[i].val) {
1662 ✗ av_log(s->avctx, AV_LOG_WARNING, "Duplicate GeoTIFF key %d\n", s->geotags[i].key);
1663 } else {
1664 ✗ char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
1665 ✗ if (!ap) {
1666 ✗ av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1667 ✗ av_freep(&dp);
1668 ✗ return AVERROR(ENOMEM);
1669 }
1670 ✗ s->geotags[i].val = ap;
1671 }
1672 }
1673 }
1674 ✗ av_freep(&dp);
1675 ✗ break;
1676 ✗ case TIFF_GEO_ASCII_PARAMS:
1677 ✗ pos = bytestream2_tell(&s->gb);
1678 ✗ for (i = 0; i < s->geotag_count; i++) {
1679 ✗ if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
1680 ✗ if (s->geotags[i].count == 0
1681 ✗ || s->geotags[i].offset + s->geotags[i].count > count) {
1682 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1683 } else {
1684 char *ap;
1685
1686 ✗ bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
1687 ✗ if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
1688 ✗ return AVERROR_INVALIDDATA;
1689 ✗ if (s->geotags[i].val)
1690 ✗ return AVERROR_INVALIDDATA;
1691 ✗ ap = av_malloc(s->geotags[i].count);
1692 ✗ if (!ap) {
1693 ✗ av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1694 ✗ return AVERROR(ENOMEM);
1695 }
1696 ✗ bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
1697 ✗ ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
1698 ✗ s->geotags[i].val = ap;
1699 }
1700 }
1701 }
1702 ✗ break;
1703 ✗ case TIFF_ICC_PROFILE:
1704 ✗ gb_temp = s->gb;
1705 ✗ bytestream2_seek(&gb_temp, off, SEEK_SET);
1706
1707 ✗ if (bytestream2_get_bytes_left(&gb_temp) < count)
1708 ✗ return AVERROR_INVALIDDATA;
1709
1710 ✗ ret = ff_frame_new_side_data(s->avctx, frame, AV_FRAME_DATA_ICC_PROFILE, count, &sd);
1711 ✗ if (ret < 0)
1712 ✗ return ret;
1713 ✗ if (sd)
1714 ✗ bytestream2_get_bufferu(&gb_temp, sd->data, count);
1715 ✗ break;
1716 ✗ case TIFF_ARTIST:
1717 ✗ ADD_METADATA(count, "artist", NULL);
1718 ✗ break;
1719 ✗ case TIFF_COPYRIGHT:
1720 ✗ ADD_METADATA(count, "copyright", NULL);
1721 ✗ break;
1722 2 case TIFF_DATE:
1723
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 2 times.
 2 ADD_METADATA(count, "date", NULL);
1724 2 break;
1725 6 case TIFF_DOCUMENT_NAME:
1726
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 6 times.
 6 ADD_METADATA(count, "document_name", NULL);
1727 6 break;
1728 ✗ case TIFF_HOST_COMPUTER:
1729 ✗ ADD_METADATA(count, "computer", NULL);
1730 ✗ break;
1731 4 case TIFF_IMAGE_DESCRIPTION:
1732
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 4 times.
 4 ADD_METADATA(count, "description", NULL);
1733 4 break;
1734 ✗ case TIFF_MAKE:
1735 ✗ ADD_METADATA(count, "make", NULL);
1736 ✗ break;
1737 ✗ case TIFF_MODEL:
1738 ✗ ADD_METADATA(count, "model", NULL);
1739 ✗ break;
1740 ✗ case TIFF_PAGE_NAME:
1741 ✗ ADD_METADATA(count, "page_name", NULL);
1742 ✗ break;
1743 12 case TIFF_PAGE_NUMBER:
1744
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 12 times.
 12 ADD_METADATA(count, "page_number", " / ");
1745 // need to seek back to re-read the page number
1746 12 bytestream2_seek(&s->gb, -count * sizeof(uint16_t), SEEK_CUR);
1747 // read the page number
1748 12 s->cur_page = ff_tget_short(&s->gb, s->le);
1749 // get back to where we were before the previous seek
1750 12 bytestream2_seek(&s->gb, count * sizeof(uint16_t) - sizeof(uint16_t), SEEK_CUR);
1751 12 break;
1752 2 case TIFF_SOFTWARE_NAME:
1753
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 2 times.
 2 ADD_METADATA(count, "software", NULL);
1754 2 break;
1755 ✗ case DNG_VERSION:
1756 ✗ if (count == 4) {
1757 unsigned int ver[4];
1758 ✗ ver[0] = ff_tget(&s->gb, type, s->le);
1759 ✗ ver[1] = ff_tget(&s->gb, type, s->le);
1760 ✗ ver[2] = ff_tget(&s->gb, type, s->le);
1761 ✗ ver[3] = ff_tget(&s->gb, type, s->le);
1762
1763 ✗ av_log(s->avctx, AV_LOG_DEBUG, "DNG file, version %u.%u.%u.%u\n",
1764 ver[0], ver[1], ver[2], ver[3]);
1765
1766 ✗ tiff_set_type(s, TIFF_TYPE_DNG);
1767 }
1768 ✗ break;
1769 ✗ case DNG_ANALOG_BALANCE:
1770 ✗ if (type != TIFF_RATIONAL)
1771 ✗ break;
1772
1773 ✗ for (int i = 0; i < 3; i++) {
1774 ✗ value = ff_tget_long(&s->gb, s->le);
1775 ✗ value2 = ff_tget_long(&s->gb, s->le);
1776 ✗ if (!value2) {
1777 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1778 ✗ value2 = 1;
1779 }
1780
1781 ✗ s->analog_balance[i] = value / (float)value2;
1782 }
1783 ✗ break;
1784 ✗ case DNG_AS_SHOT_NEUTRAL:
1785 ✗ if (type != TIFF_RATIONAL)
1786 ✗ break;
1787
1788 ✗ for (int i = 0; i < 3; i++) {
1789 ✗ value = ff_tget_long(&s->gb, s->le);
1790 ✗ value2 = ff_tget_long(&s->gb, s->le);
1791 ✗ if (!value2) {
1792 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1793 ✗ value2 = 1;
1794 }
1795
1796 ✗ s->as_shot_neutral[i] = value / (float)value2;
1797 }
1798 ✗ break;
1799 ✗ case DNG_AS_SHOT_WHITE_XY:
1800 ✗ if (type != TIFF_RATIONAL)
1801 ✗ break;
1802
1803 ✗ for (int i = 0; i < 2; i++) {
1804 ✗ value = ff_tget_long(&s->gb, s->le);
1805 ✗ value2 = ff_tget_long(&s->gb, s->le);
1806 ✗ if (!value2) {
1807 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1808 ✗ value2 = 1;
1809 }
1810
1811 ✗ s->as_shot_white[i] = value / (float)value2;
1812 }
1813 ✗ s->as_shot_white[2] = 1.f - s->as_shot_white[0] - s->as_shot_white[1];
1814 ✗ for (int i = 0; i < 3; i++) {
1815 ✗ s->as_shot_white[i] /= d65_white[i];
1816 }
1817 ✗ break;
1818 ✗ case DNG_COLOR_MATRIX1:
1819 case DNG_COLOR_MATRIX2:
1820 ✗ for (int i = 0; i < 3; i++) {
1821 ✗ for (int j = 0; j < 3; j++) {
1822 ✗ int value = ff_tget_long(&s->gb, s->le);
1823 ✗ int 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 ✗ s->color_matrix[i][j] = value / (float)value2;
1829 }
1830 ✗ s->use_color_matrix = 1;
1831 }
1832 ✗ break;
1833 ✗ case DNG_CAMERA_CALIBRATION1:
1834 case DNG_CAMERA_CALIBRATION2:
1835 ✗ for (int i = 0; i < 3; i++) {
1836 ✗ for (int j = 0; j < 3; j++) {
1837 ✗ int value = ff_tget_long(&s->gb, s->le);
1838 ✗ int value2 = ff_tget_long(&s->gb, s->le);
1839 ✗ if (!value2) {
1840 ✗ av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1841 ✗ value2 = 1;
1842 }
1843 ✗ s->camera_calibration[i][j] = value / (float)value2;
1844 }
1845 }
1846 ✗ break;
1847 ✗ case CINEMADNG_TIME_CODES:
1848 case CINEMADNG_FRAME_RATE:
1849 case CINEMADNG_T_STOP:
1850 case CINEMADNG_REEL_NAME:
1851 case CINEMADNG_CAMERA_LABEL:
1852 ✗ tiff_set_type(s, TIFF_TYPE_CINEMADNG);
1853 ✗ break;
1854 97 default:
1855
1/2
✓ Branch 0 taken 97 times.
✗ Branch 1 not taken.
 97 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1856 ✗ av_log(s->avctx, AV_LOG_ERROR,
1857 "Unknown or unsupported tag %d/0x%0X\n",
1858 tag, tag);
1859 ✗ return AVERROR_INVALIDDATA;
1860 }
1861 }
1862 97 end:
1863
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 519 times.
 519 if (s->bpp > 128U) {
1864 ✗ av_log(s->avctx, AV_LOG_ERROR,
1865 "This format is not supported (bpp=%d, %d components)\n",
1866 s->bpp, count);
1867 ✗ s->bpp = 0;
1868 ✗ return AVERROR_INVALIDDATA;
1869 }
1870 519 bytestream2_seek(&s->gb, start, SEEK_SET);
1871 519 return 0;
1872 }
1873
1874 static const float xyz2rgb[3][3] = {
1875 { 0.412453f, 0.357580f, 0.180423f },
1876 { 0.212671f, 0.715160f, 0.072169f },
1877 { 0.019334f, 0.119193f, 0.950227f },
1878 };
1879
1880 ✗ static void camera_xyz_coeff(TiffContext *s,
1881 float rgb2cam[3][4],
1882 double cam2xyz[4][3])
1883 {
1884 double cam2rgb[4][3], num;
1885 int i, j, k;
1886
1887 ✗ for (i = 0; i < 3; i++) {
1888 ✗ for (j = 0; j < 3; j++) {
1889 ✗ cam2rgb[i][j] = 0.;
1890 ✗ for (k = 0; k < 3; k++)
1891 ✗ cam2rgb[i][j] += cam2xyz[i][k] * xyz2rgb[k][j];
1892 }
1893 }
1894
1895 ✗ for (i = 0; i < 3; i++) {
1896 ✗ for (num = j = 0; j < 3; j++)
1897 ✗ num += cam2rgb[i][j];
1898 ✗ if (!num)
1899 ✗ num = 1;
1900 ✗ for (j = 0; j < 3; j++)
1901 ✗ cam2rgb[i][j] /= num;
1902 ✗ s->premultiply[i] = 1.f / num;
1903 }
1904 ✗ }
1905
1906 33 static int decode_frame(AVCodecContext *avctx, AVFrame *p,
1907 int *got_frame, AVPacket *avpkt)
1908 {
1909 33 TiffContext *const s = avctx->priv_data;
1910 33 unsigned off, last_off = 0;
1911 int le, ret, plane, planes;
1912 int i, j, entries, stride;
1913 unsigned soff, ssize;
1914 uint8_t *dst;
1915 GetByteContext stripsizes;
1916 GetByteContext stripdata;
1917 int retry_for_subifd, retry_for_page;
1918 int is_dng;
1919 int has_tile_bits, has_strip_bits;
1920
1921 33 bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1922
1923 // parse image header
1924
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 33 times.
 33 if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
1925 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
1926 ✗ return ret;
1927
2/4
✓ Branch 0 taken 33 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 33 times.
 33 } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1928 ✗ av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1929 ✗ return AVERROR_INVALIDDATA;
1930 }
1931 33 s->le = le;
1932 // TIFF_BPP is not a required tag and defaults to 1
1933
1934 33 s->tiff_type = TIFF_TYPE_TIFF;
1935 33 s->use_color_matrix = 0;
1936 33 again:
1937 33 s->is_thumbnail = 0;
1938 33 s->bppcount = s->bpp = 1;
1939 33 s->photometric = TIFF_PHOTOMETRIC_NONE;
1940 33 s->compr = TIFF_RAW;
1941 33 s->fill_order = 0;
1942 33 s->white_level = 0;
1943 33 s->is_bayer = 0;
1944 33 s->is_tiled = 0;
1945 33 s->is_jpeg = 0;
1946 33 s->cur_page = 0;
1947 33 s->last_tag = 0;
1948
1949
2/2
✓ Branch 0 taken 2162688 times.
✓ Branch 1 taken 33 times.
 2162721 for (i = 0; i < 65536; i++)
1950 2162688 s->dng_lut[i] = i;
1951
1952
2/2
✓ Branch 0 taken 132 times.
✓ Branch 1 taken 33 times.
 165 for (i = 0; i < FF_ARRAY_ELEMS(s->black_level); i++)
1953 132 s->black_level[i] = 0.f;
1954
1955
2/2
✓ Branch 0 taken 132 times.
✓ Branch 1 taken 33 times.
 165 for (i = 0; i < FF_ARRAY_ELEMS(s->as_shot_neutral); i++)
1956 132 s->as_shot_neutral[i] = 0.f;
1957
1958
2/2
✓ Branch 0 taken 132 times.
✓ Branch 1 taken 33 times.
 165 for (i = 0; i < FF_ARRAY_ELEMS(s->as_shot_white); i++)
1959 132 s->as_shot_white[i] = 1.f;
1960
1961
2/2
✓ Branch 0 taken 132 times.
✓ Branch 1 taken 33 times.
 165 for (i = 0; i < FF_ARRAY_ELEMS(s->analog_balance); i++)
1962 132 s->analog_balance[i] = 1.f;
1963
1964
2/2
✓ Branch 0 taken 132 times.
✓ Branch 1 taken 33 times.
 165 for (i = 0; i < FF_ARRAY_ELEMS(s->premultiply); i++)
1965 132 s->premultiply[i] = 1.f;
1966
1967
2/2
✓ Branch 0 taken 132 times.
✓ Branch 1 taken 33 times.
 165 for (i = 0; i < 4; i++)
1968
2/2
✓ Branch 0 taken 528 times.
✓ Branch 1 taken 132 times.
 660 for (j = 0; j < 4; j++)
1969
2/2
✓ Branch 0 taken 132 times.
✓ Branch 1 taken 396 times.
 528 s->camera_calibration[i][j] = i == j;
1970
1971 33 free_geotags(s);
1972
1973 // Reset these offsets so we can tell if they were set this frame
1974 33 s->stripsizesoff = s->strippos = 0;
1975 /* parse image file directory */
1976 33 bytestream2_seek(&s->gb, off, SEEK_SET);
1977 33 entries = ff_tget_short(&s->gb, le);
1978
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 33 times.
 33 if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1979 ✗ return AVERROR_INVALIDDATA;
1980
2/2
✓ Branch 0 taken 519 times.
✓ Branch 1 taken 33 times.
 552 for (i = 0; i < entries; i++) {
1981
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 519 times.
 519 if ((ret = tiff_decode_tag(s, p)) < 0)
1982 ✗ return ret;
1983 }
1984
1985
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 33 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 33 if (s->get_thumbnail && !s->is_thumbnail) {
1986 ✗ av_log(avctx, AV_LOG_INFO, "No embedded thumbnail present\n");
1987 ✗ return AVERROR_EOF;
1988 }
1989
1990 /** whether we should process this IFD's SubIFD */
1991
1/8
✗ Branch 0 not taken.
✓ Branch 1 taken 33 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
✗ Branch 7 not taken.
 33 retry_for_subifd = s->sub_ifd && (s->get_subimage || (!s->get_thumbnail && s->is_thumbnail));
1992 /** whether we should process this multi-page IFD's next page */
1993
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 33 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 33 retry_for_page = s->get_page && s->cur_page + 1 < s->get_page; // get_page is 1-indexed
1994
1995
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 33 times.
 33 if (retry_for_page) {
1996 // set offset to the next IFD
1997 ✗ off = ff_tget_long(&s->gb, le);
1998
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 33 times.
 33 } else if (retry_for_subifd) {
1999 // set offset to the SubIFD
2000 ✗ off = s->sub_ifd;
2001 }
2002
2003
2/4
✓ Branch 0 taken 33 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 33 times.
 33 if (retry_for_subifd || retry_for_page) {
2004 ✗ if (!off) {
2005 ✗ av_log(avctx, AV_LOG_ERROR, "Requested entry not found\n");
2006 ✗ return AVERROR_INVALIDDATA;
2007 }
2008 ✗ if (off <= last_off) {
2009 ✗ avpriv_request_sample(s->avctx, "non increasing IFD offset");
2010 ✗ return AVERROR_INVALIDDATA;
2011 }
2012 ✗ last_off = off;
2013 ✗ if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
2014 ✗ av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
2015 ✗ return AVERROR_INVALIDDATA;
2016 }
2017 ✗ s->sub_ifd = 0;
2018 ✗ goto again;
2019 }
2020
2021 /* At this point we've decided on which (Sub)IFD to process */
2022
2023
2/4
✓ Branch 0 taken 33 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 33 times.
 33 is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
2024
2025
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 33 times.
 33 for (i = 0; i<s->geotag_count; i++) {
2026 ✗ const char *keyname = get_geokey_name(s->geotags[i].key);
2027 ✗ if (!keyname) {
2028 ✗ av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
2029 ✗ continue;
2030 }
2031 ✗ if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
2032 ✗ av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
2033 ✗ continue;
2034 }
2035 ✗ ret = av_dict_set(&p->metadata, keyname, s->geotags[i].val, AV_DICT_DONT_STRDUP_VAL);
2036 ✗ s->geotags[i].val = NULL;
2037 ✗ if (ret<0) {
2038 ✗ av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
2039 ✗ return ret;
2040 }
2041 }
2042
2043
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 33 times.
 33 if (is_dng) {
2044 double cam2xyz[4][3];
2045 float cmatrix[3][4];
2046 ✗ float pmin = FLT_MAX;
2047 int bps;
2048
2049 ✗ for (i = 0; i < 3; i++) {
2050 ✗ for (j = 0; j < 3; j++)
2051 ✗ s->camera_calibration[i][j] *= s->analog_balance[i];
2052 }
2053
2054 ✗ if (!s->use_color_matrix) {
2055 ✗ for (i = 0; i < 3; i++) {
2056 ✗ if (s->camera_calibration[i][i])
2057 ✗ s->premultiply[i] /= s->camera_calibration[i][i];
2058 }
2059 } else {
2060 ✗ for (int c = 0; c < 3; c++) {
2061 ✗ for (i = 0; i < 3; i++) {
2062 ✗ cam2xyz[c][i] = 0.;
2063 ✗ for (j = 0; j < 3; j++)
2064 ✗ cam2xyz[c][i] += s->camera_calibration[c][j] * s->color_matrix[j][i] * s->as_shot_white[i];
2065 }
2066 }
2067
2068 ✗ camera_xyz_coeff(s, cmatrix, cam2xyz);
2069 }
2070
2071 ✗ for (int c = 0; c < 3; c++)
2072 ✗ pmin = fminf(pmin, s->premultiply[c]);
2073
2074 ✗ for (int c = 0; c < 3; c++)
2075 ✗ s->premultiply[c] /= pmin;
2076
2077 ✗ if (s->bpp % s->bppcount)
2078 ✗ return AVERROR_INVALIDDATA;
2079 ✗ bps = s->bpp / s->bppcount;
2080 ✗ if (bps < 8 || bps > 32)
2081 ✗ return AVERROR_INVALIDDATA;
2082
2083 ✗ if (s->white_level == 0)
2084 ✗ s->white_level = (1LL << bps) - 1; /* Default value as per the spec */
2085
2086 ✗ if (s->white_level <= s->black_level[0]) {
2087 ✗ av_log(avctx, AV_LOG_ERROR, "BlackLevel (%g) must be less than WhiteLevel (%"PRId32")\n",
2088 ✗ s->black_level[0], s->white_level);
2089 ✗ return AVERROR_INVALIDDATA;
2090 }
2091
2092 ✗ if (s->planar)
2093 ✗ return AVERROR_PATCHWELCOME;
2094 }
2095
2096
4/6
✓ Branch 0 taken 33 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 14 times.
✓ Branch 3 taken 19 times.
✗ Branch 4 not taken.
✓ Branch 5 taken 14 times.
 33 if (!s->is_tiled && !s->strippos && !s->stripoff) {
2097 ✗ av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
2098 ✗ return AVERROR_INVALIDDATA;
2099 }
2100
2101
5/10
✓ Branch 0 taken 33 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 33 times.
✗ Branch 3 not taken.
✓ Branch 4 taken 33 times.
✗ Branch 5 not taken.
✓ Branch 6 taken 33 times.
✗ Branch 7 not taken.
✗ Branch 8 not taken.
✓ Branch 9 taken 33 times.
 33 has_tile_bits = s->is_tiled || s->tile_byte_counts_offset || s->tile_offsets_offset || s->tile_width || s->tile_length;
2102
3/16
✓ Branch 0 taken 14 times.
✓ Branch 1 taken 19 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 14 times.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
✗ Branch 7 not taken.
✗ Branch 8 not taken.
✗ Branch 9 not taken.
✗ Branch 10 not taken.
✗ Branch 11 not taken.
✗ Branch 12 not taken.
✗ Branch 13 not taken.
✗ Branch 14 not taken.
✗ Branch 15 not taken.
 33 has_strip_bits = s->strippos || s->strips || s->stripoff || s->rps || s->sot || s->sstype || s->stripsize || s->stripsizesoff;
2103
2104
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 33 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 33 if (has_tile_bits && has_strip_bits) {
2105 ✗ int tiled_dng = s->is_tiled && is_dng;
2106 ✗ av_log(avctx, tiled_dng ? AV_LOG_WARNING : AV_LOG_ERROR, "Tiled TIFF is not allowed to strip\n");
2107 ✗ if (!tiled_dng)
2108 ✗ return AVERROR_INVALIDDATA;
2109 }
2110
2111 /* now we have the data and may start decoding */
2112
2/2
✓ Branch 1 taken 11 times.
✓ Branch 2 taken 22 times.
 33 if ((ret = init_image(s, p)) <= 0)
2113 11 return ret;
2114
2115
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 22 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 22 if (!s->is_tiled || has_strip_bits) {
2116
3/4
✓ Branch 0 taken 7 times.
✓ Branch 1 taken 15 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 7 times.
 22 if (s->strips == 1 && !s->stripsize) {
2117 ✗ av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
2118 ✗ s->stripsize = avpkt->size - s->stripoff;
2119 }
2120
2121
2/2
✓ Branch 0 taken 15 times.
✓ Branch 1 taken 7 times.
 22 if (s->stripsizesoff) {
2122
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 15 times.
 15 if (s->stripsizesoff >= (unsigned)avpkt->size)
2123 ✗ return AVERROR_INVALIDDATA;
2124 15 bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
2125 15 avpkt->size - s->stripsizesoff);
2126 }
2127
2/2
✓ Branch 0 taken 15 times.
✓ Branch 1 taken 7 times.
 22 if (s->strippos) {
2128
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 15 times.
 15 if (s->strippos >= (unsigned)avpkt->size)
2129 ✗ return AVERROR_INVALIDDATA;
2130 15 bytestream2_init(&stripdata, avpkt->data + s->strippos,
2131 15 avpkt->size - s->strippos);
2132 }
2133
2134
2/4
✓ Branch 0 taken 22 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 22 times.
 22 if (s->rps <= 0 || s->rps % s->subsampling[1]) {
2135 ✗ av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
2136 ✗ return AVERROR_INVALIDDATA;
2137 }
2138 }
2139
2140
1/2
✓ Branch 0 taken 22 times.
✗ Branch 1 not taken.
 22 if (s->photometric == TIFF_PHOTOMETRIC_LINEAR_RAW ||
2141
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 22 times.
 22 s->photometric == TIFF_PHOTOMETRIC_CFA) {
2142 ✗ p->color_trc = AVCOL_TRC_LINEAR;
2143
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 22 times.
 22 } else if (s->photometric == TIFF_PHOTOMETRIC_BLACK_IS_ZERO) {
2144 ✗ p->color_trc = AVCOL_TRC_GAMMA22;
2145 }
2146
2147 /* Handle DNG images with JPEG-compressed tiles */
2148
2149
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 22 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 22 if (is_dng && s->is_tiled) {
2150 ✗ if (!s->is_jpeg) {
2151 ✗ avpriv_report_missing_feature(avctx, "DNG uncompressed tiled images");
2152 ✗ return AVERROR_PATCHWELCOME;
2153 ✗ } else if (!s->is_bayer) {
2154 ✗ avpriv_report_missing_feature(avctx, "DNG JPG-compressed tiled non-bayer-encoded images");
2155 ✗ return AVERROR_PATCHWELCOME;
2156 } else {
2157 ✗ if ((ret = dng_decode_tiles(avctx, p, avpkt)) > 0)
2158 ✗ *got_frame = 1;
2159 ✗ return ret;
2160 }
2161 }
2162
2163 /* Handle TIFF images and DNG images with uncompressed strips (non-tiled) */
2164
2165
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 22 times.
 22 planes = s->planar ? s->bppcount : 1;
2166
2/2
✓ Branch 0 taken 22 times.
✓ Branch 1 taken 22 times.
 44 for (plane = 0; plane < planes; plane++) {
2167 22 uint8_t *five_planes = NULL;
2168 22 int remaining = avpkt->size;
2169 int decoded_height;
2170 22 stride = p->linesize[plane];
2171 22 dst = p->data[plane];
2172
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 22 times.
 22 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2173 ✗ s->avctx->pix_fmt == AV_PIX_FMT_RGBA) {
2174 ✗ stride = stride * 5 / 4;
2175 ✗ five_planes =
2176 ✗ dst = av_malloc(stride * s->height);
2177 ✗ if (!dst)
2178 ✗ return AVERROR(ENOMEM);
2179 }
2180
2/2
✓ Branch 0 taken 579 times.
✓ Branch 1 taken 22 times.
 601 for (i = 0; i < s->height; i += s->rps) {
2181
2/2
✓ Branch 0 taken 557 times.
✓ Branch 1 taken 22 times.
 579 if (i)
2182 557 dst += s->rps * stride;
2183
2/2
✓ Branch 0 taken 572 times.
✓ Branch 1 taken 7 times.
 579 if (s->stripsizesoff)
2184 572 ssize = ff_tget(&stripsizes, s->sstype, le);
2185 else
2186 7 ssize = s->stripsize;
2187
2188
2/2
✓ Branch 0 taken 572 times.
✓ Branch 1 taken 7 times.
 579 if (s->strippos)
2189 572 soff = ff_tget(&stripdata, s->sot, le);
2190 else
2191 7 soff = s->stripoff;
2192
2193
3/6
✓ Branch 0 taken 579 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 579 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 579 times.
 579 if (soff > avpkt->size || ssize > avpkt->size - soff || ssize > remaining) {
2194 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
2195 ✗ av_freep(&five_planes);
2196 ✗ return AVERROR_INVALIDDATA;
2197 }
2198 579 remaining -= ssize;
2199
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 579 times.
 579 if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i,
2200 579 FFMIN(s->rps, s->height - i))) < 0) {
2201 ✗ if (avctx->err_recognition & AV_EF_EXPLODE) {
2202 ✗ av_freep(&five_planes);
2203 ✗ return ret;
2204 }
2205 ✗ break;
2206 }
2207 }
2208 22 decoded_height = FFMIN(i, s->height);
2209
2210
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 22 times.
 22 if (s->predictor == 2) {
2211 ✗ if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
2212 ✗ av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported");
2213 ✗ return AVERROR_PATCHWELCOME;
2214 }
2215 ✗ dst = five_planes ? five_planes : p->data[plane];
2216 ✗ soff = s->bpp >> 3;
2217 ✗ if (s->planar)
2218 ✗ soff = FFMAX(soff / s->bppcount, 1);
2219 ✗ ssize = s->width * soff;
2220 ✗ if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
2221 ✗ s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
2222 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GRAY16LE ||
2223 ✗ s->avctx->pix_fmt == AV_PIX_FMT_YA16LE ||
2224 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
2225 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
2226 ✗ for (i = 0; i < decoded_height; i++) {
2227 ✗ for (j = soff; j < ssize; j += 2)
2228 ✗ AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
2229 ✗ dst += stride;
2230 }
2231 ✗ } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
2232 ✗ s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
2233 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GRAY16BE ||
2234 ✗ s->avctx->pix_fmt == AV_PIX_FMT_YA16BE ||
2235 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
2236 ✗ s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
2237 ✗ for (i = 0; i < decoded_height; i++) {
2238 ✗ for (j = soff; j < ssize; j += 2)
2239 ✗ AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
2240 ✗ dst += stride;
2241 }
2242 } else {
2243 ✗ for (i = 0; i < decoded_height; i++) {
2244 ✗ for (j = soff; j < ssize; j++)
2245 ✗ dst[j] += dst[j - soff];
2246 ✗ dst += stride;
2247 }
2248 }
2249 }
2250
2251 /* Floating point predictor
2252 TIFF Technical Note 3 http://chriscox.org/TIFFTN3d1.pdf */
2253
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 18 times.
 22 if (s->predictor == 3) {
2254 4 int channels = s->bppcount;
2255 int group_size;
2256 uint8_t *tmpbuf;
2257 int bpc;
2258
2259
1/2
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
 4 dst = five_planes ? five_planes : p->data[plane];
2260 4 soff = s->bpp >> 3;
2261
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
 4 if (s->planar) {
2262 ✗ soff = FFMAX(soff / s->bppcount, 1);
2263 ✗ channels = 1;
2264 }
2265 4 ssize = s->width * soff;
2266 4 bpc = FFMAX(soff / s->bppcount, 1); /* Bytes per component */
2267 4 group_size = s->width * channels;
2268
2269 4 tmpbuf = av_malloc(ssize);
2270
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
 4 if (!tmpbuf)
2271 ✗ return AVERROR(ENOMEM);
2272
2273
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 2 times.
 4 if (s->avctx->pix_fmt == AV_PIX_FMT_RGBF32LE ||
2274
1/2
✓ Branch 0 taken 2 times.
✗ Branch 1 not taken.
 2 s->avctx->pix_fmt == AV_PIX_FMT_RGBAF32LE) {
2275
2/2
✓ Branch 0 taken 32 times.
✓ Branch 1 taken 4 times.
 36 for (i = 0; i < decoded_height; i++) {
2276 /* Copy first sample byte for each channel */
2277
2/2
✓ Branch 0 taken 112 times.
✓ Branch 1 taken 32 times.
 144 for (j = 0; j < channels; j++)
2278 112 tmpbuf[j] = dst[j];
2279
2280 /* Decode horizontal differences */
2281
2/2
✓ Branch 0 taken 3472 times.
✓ Branch 1 taken 32 times.
 3504 for (j = channels; j < ssize; j++)
2282 3472 tmpbuf[j] = dst[j] + tmpbuf[j-channels];
2283
2284 /* Combine shuffled bytes from their separate groups. Each
2285 byte of every floating point value in a row of pixels is
2286 split and combined into separate groups. A group of all
2287 the sign/exponents bytes in the row and groups for each
2288 of the upper, mid, and lower mantissa bytes in the row. */
2289
2/2
✓ Branch 0 taken 896 times.
✓ Branch 1 taken 32 times.
 928 for (j = 0; j < group_size; j++) {
2290
2/2
✓ Branch 0 taken 3584 times.
✓ Branch 1 taken 896 times.
 4480 for (int k = 0; k < bpc; k++) {
2291 3584 dst[bpc * j + k] = tmpbuf[(bpc - k - 1) * group_size + j];
2292 }
2293 }
2294 32 dst += stride;
2295 }
2296 ✗ } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGBF32BE ||
2297 ✗ s->avctx->pix_fmt == AV_PIX_FMT_RGBAF32BE) {
2298 /* Same as LE only the shuffle at the end is reversed */
2299 ✗ for (i = 0; i < decoded_height; i++) {
2300 ✗ for (j = 0; j < channels; j++)
2301 ✗ tmpbuf[j] = dst[j];
2302
2303 ✗ for (j = channels; j < ssize; j++)
2304 ✗ tmpbuf[j] = dst[j] + tmpbuf[j-channels];
2305
2306 ✗ for (j = 0; j < group_size; j++) {
2307 ✗ for (int k = 0; k < bpc; k++) {
2308 ✗ dst[bpc * j + k] = tmpbuf[k * group_size + j];
2309 }
2310 }
2311 ✗ dst += stride;
2312 }
2313 } else {
2314 ✗ av_log(s->avctx, AV_LOG_ERROR, "unsupported floating point pixel format\n");
2315 }
2316 4 av_free(tmpbuf);
2317 }
2318
2319
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 20 times.
 22 if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) {
2320
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
 2 int c = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255);
2321 2 dst = p->data[plane];
2322
2/2
✓ Branch 0 taken 6496 times.
✓ Branch 1 taken 2 times.
 6498 for (i = 0; i < s->height; i++) {
2323
2/2
✓ Branch 0 taken 2078720 times.
✓ Branch 1 taken 6496 times.
 2085216 for (j = 0; j < stride; j++)
2324 2078720 dst[j] = c - dst[j];
2325 6496 dst += stride;
2326 }
2327 }
2328
2329
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 22 times.
 22 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2330 ✗ (s->avctx->pix_fmt == AV_PIX_FMT_RGB0 || s->avctx->pix_fmt == AV_PIX_FMT_RGBA)) {
2331 ✗ int x = s->avctx->pix_fmt == AV_PIX_FMT_RGB0 ? 4 : 5;
2332 ✗ uint8_t *src = five_planes ? five_planes : p->data[plane];
2333 ✗ dst = p->data[plane];
2334 ✗ for (i = 0; i < s->height; i++) {
2335 ✗ for (j = 0; j < s->width; j++) {
2336 ✗ int k = 255 - src[x * j + 3];
2337 ✗ int r = (255 - src[x * j ]) * k;
2338 ✗ int g = (255 - src[x * j + 1]) * k;
2339 ✗ int b = (255 - src[x * j + 2]) * k;
2340 ✗ dst[4 * j ] = r * 257 >> 16;
2341 ✗ dst[4 * j + 1] = g * 257 >> 16;
2342 ✗ dst[4 * j + 2] = b * 257 >> 16;
2343 ✗ dst[4 * j + 3] = s->avctx->pix_fmt == AV_PIX_FMT_RGBA ? src[x * j + 4] : 255;
2344 }
2345 ✗ src += stride;
2346 ✗ dst += p->linesize[plane];
2347 }
2348 ✗ av_freep(&five_planes);
2349
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 22 times.
 22 } else if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2350 ✗ s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) {
2351 ✗ dst = p->data[plane];
2352 ✗ for (i = 0; i < s->height; i++) {
2353 ✗ for (j = 0; j < s->width; j++) {
2354 ✗ uint64_t k = 65535 - AV_RB16(dst + 8 * j + 6);
2355 ✗ uint64_t r = (65535 - AV_RB16(dst + 8 * j )) * k;
2356 ✗ uint64_t g = (65535 - AV_RB16(dst + 8 * j + 2)) * k;
2357 ✗ uint64_t b = (65535 - AV_RB16(dst + 8 * j + 4)) * k;
2358 ✗ AV_WB16(dst + 8 * j , r * 65537 >> 32);
2359 ✗ AV_WB16(dst + 8 * j + 2, g * 65537 >> 32);
2360 ✗ AV_WB16(dst + 8 * j + 4, b * 65537 >> 32);
2361 ✗ AV_WB16(dst + 8 * j + 6, 65535);
2362 }
2363 ✗ dst += p->linesize[plane];
2364 }
2365 }
2366 }
2367
2368
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 22 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 22 if (s->planar && s->bppcount > 2) {
2369 ✗ FFSWAP(uint8_t*, p->data[0], p->data[2]);
2370 ✗ FFSWAP(int, p->linesize[0], p->linesize[2]);
2371 ✗ FFSWAP(uint8_t*, p->data[0], p->data[1]);
2372 ✗ FFSWAP(int, p->linesize[0], p->linesize[1]);
2373 }
2374
2375
1/8
✗ Branch 0 not taken.
✓ Branch 1 taken 22 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
✗ Branch 7 not taken.
 22 if (s->is_bayer && s->white_level && s->bpp == 16 && !is_dng) {
2376 ✗ uint16_t *dst = (uint16_t *)p->data[0];
2377 ✗ for (i = 0; i < s->height; i++) {
2378 ✗ for (j = 0; j < s->width; j++)
2379 ✗ dst[j] = FFMIN((dst[j] / (float)s->white_level) * 65535, 65535);
2380 ✗ dst += stride / 2;
2381 }
2382 }
2383
2384 22 p->flags |= AV_FRAME_FLAG_KEY;
2385 22 *got_frame = 1;
2386
2387 22 return avpkt->size;
2388 }
2389
2390 21 static av_cold int tiff_init(AVCodecContext *avctx)
2391 {
2392 21 TiffContext *s = avctx->priv_data;
2393 const AVCodec *codec;
2394 int ret;
2395
2396 21 s->width = 0;
2397 21 s->height = 0;
2398 21 s->subsampling[0] =
2399 21 s->subsampling[1] = 1;
2400 21 s->avctx = avctx;
2401 21 ff_lzw_decode_open(&s->lzw);
2402
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
 21 if (!s->lzw)
2403 ✗ return AVERROR(ENOMEM);
2404 21 ff_ccitt_unpack_init();
2405
2406 /* Allocate JPEG frame */
2407 21 s->jpgframe = av_frame_alloc();
2408 21 s->jpkt = av_packet_alloc();
2409
2/4
✓ Branch 0 taken 21 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 21 times.
 21 if (!s->jpgframe || !s->jpkt)
2410 ✗ return AVERROR(ENOMEM);
2411
2412 /* Prepare everything needed for JPEG decoding */
2413 21 codec = avcodec_find_decoder(AV_CODEC_ID_MJPEG);
2414
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
 21 if (!codec)
2415 ✗ return AVERROR_BUG;
2416 21 s->avctx_mjpeg = avcodec_alloc_context3(codec);
2417
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
 21 if (!s->avctx_mjpeg)
2418 ✗ return AVERROR(ENOMEM);
2419 21 s->avctx_mjpeg->flags = avctx->flags;
2420 21 s->avctx_mjpeg->flags2 = avctx->flags2;
2421 21 s->avctx_mjpeg->idct_algo = avctx->idct_algo;
2422 21 s->avctx_mjpeg->max_pixels = avctx->max_pixels;
2423 21 ret = avcodec_open2(s->avctx_mjpeg, codec, NULL);
2424
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
 21 if (ret < 0) {
2425 ✗ return ret;
2426 }
2427
2428 21 return 0;
2429 }
2430
2431 21 static av_cold int tiff_end(AVCodecContext *avctx)
2432 {
2433 21 TiffContext *const s = avctx->priv_data;
2434
2435 21 free_geotags(s);
2436
2437 21 ff_lzw_decode_close(&s->lzw);
2438 21 av_freep(&s->deinvert_buf);
2439 21 s->deinvert_buf_size = 0;
2440 21 av_freep(&s->yuv_line);
2441 21 s->yuv_line_size = 0;
2442 21 av_frame_free(&s->jpgframe);
2443 21 av_packet_free(&s->jpkt);
2444 21 avcodec_free_context(&s->avctx_mjpeg);
2445 21 return 0;
2446 }
2447
2448 #define OFFSET(x) offsetof(TiffContext, x)
2449 static const AVOption tiff_options[] = {
2450 { "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 },
2451 { "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 },
2452 { "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 },
2453 { NULL },
2454 };
2455
2456 static const AVClass tiff_decoder_class = {
2457 .class_name = "TIFF decoder",
2458 .item_name = av_default_item_name,
2459 .option = tiff_options,
2460 .version = LIBAVUTIL_VERSION_INT,
2461 };
2462
2463 const FFCodec ff_tiff_decoder = {
2464 .p.name = "tiff",
2465 CODEC_LONG_NAME("TIFF image"),
2466 .p.type = AVMEDIA_TYPE_VIDEO,
2467 .p.id = AV_CODEC_ID_TIFF,
2468 .priv_data_size = sizeof(TiffContext),
2469 .init = tiff_init,
2470 .close = tiff_end,
2471 FF_CODEC_DECODE_CB(decode_frame),
2472 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
2473 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP | FF_CODEC_CAP_ICC_PROFILES |
2474 FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
2475 .p.priv_class = &tiff_decoder_class,
2476 };
2477