FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/tiff.c
Date: 2021-09-26 18:22:30
Exec Total Coverage
Lines: 369 1361 27.1%
Branches: 232 1118 20.8%

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 "libavutil/attributes.h"
37 #include "libavutil/avstring.h"
38 #include "libavutil/error.h"
39 #include "libavutil/intreadwrite.h"
40 #include "libavutil/imgutils.h"
41 #include "libavutil/opt.h"
42 #include "avcodec.h"
43 #include "bytestream.h"
44 #include "faxcompr.h"
45 #include "internal.h"
46 #include "lzw.h"
47 #include "mathops.h"
48 #include "tiff.h"
49 #include "tiff_data.h"
50 #include "mjpegdec.h"
51 #include "thread.h"
52 #include "get_bits.h"
53
54 typedef struct TiffContext {
55 AVClass *class;
56 AVCodecContext *avctx;
57 GetByteContext gb;
58
59 /* JPEG decoding for DNG */
60 AVCodecContext *avctx_mjpeg; // wrapper context for MJPEG
61 AVPacket *jpkt; // encoded JPEG tile
62 AVFrame *jpgframe; // decoded JPEG tile
63
64 int get_subimage;
65 uint16_t get_page;
66 int get_thumbnail;
67
68 enum TiffType tiff_type;
69 int width, height;
70 unsigned int bpp, bppcount;
71 uint32_t palette[256];
72 int palette_is_set;
73 int le;
74 enum TiffCompr compr;
75 enum TiffPhotometric photometric;
76 int planar;
77 int subsampling[2];
78 int fax_opts;
79 int predictor;
80 int fill_order;
81 uint32_t res[4];
82 int is_thumbnail;
83 unsigned last_tag;
84
85 int is_bayer;
86 uint8_t pattern[4];
87 unsigned black_level;
88 unsigned white_level;
89 uint16_t dng_lut[65536];
90
91 uint32_t sub_ifd;
92 uint16_t cur_page;
93
94 int strips, rps, sstype;
95 int sot;
96 int stripsizesoff, stripsize, stripoff, strippos;
97 LZWState *lzw;
98
99 /* Tile support */
100 int is_tiled;
101 int tile_byte_counts_offset, tile_offsets_offset;
102 int tile_width, tile_length;
103 int tile_count;
104
105 int is_jpeg;
106
107 uint8_t *deinvert_buf;
108 int deinvert_buf_size;
109 uint8_t *yuv_line;
110 unsigned int yuv_line_size;
111
112 int geotag_count;
113 TiffGeoTag *geotags;
114 } TiffContext;
115
116 static void tiff_set_type(TiffContext *s, enum TiffType tiff_type) {
117 if (s->tiff_type < tiff_type) // Prioritize higher-valued entries
118 s->tiff_type = tiff_type;
119 }
120
121 30 static void free_geotags(TiffContext *const s)
122 {
123 int i;
124
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 30 times.
30 for (i = 0; i < s->geotag_count; i++) {
125 if (s->geotags[i].val)
126 av_freep(&s->geotags[i].val);
127 }
128 30 av_freep(&s->geotags);
129 30 s->geotag_count = 0;
130 30 }
131
132 #define RET_GEOKEY(TYPE, array, element)\
133 if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
134 key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(tiff_##array##_name_type_map))\
135 return tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].element;
136
137 static const char *get_geokey_name(int key)
138 {
139 RET_GEOKEY(VERT, vert, name);
140 RET_GEOKEY(PROJ, proj, name);
141 RET_GEOKEY(GEOG, geog, name);
142 RET_GEOKEY(CONF, conf, name);
143
144 return NULL;
145 }
146
147 static int get_geokey_type(int key)
148 {
149 RET_GEOKEY(VERT, vert, type);
150 RET_GEOKEY(PROJ, proj, type);
151 RET_GEOKEY(GEOG, geog, type);
152 RET_GEOKEY(CONF, conf, type);
153
154 return AVERROR_INVALIDDATA;
155 }
156
157 static int cmp_id_key(const void *id, const void *k)
158 {
159 return *(const int*)id - ((const TiffGeoTagKeyName*)k)->key;
160 }
161
162 static const char *search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
163 {
164 TiffGeoTagKeyName *r = bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key);
165 if(r)
166 return r->name;
167
168 return NULL;
169 }
170
171 static char *get_geokey_val(int key, int val)
172 {
173 char *ap;
174
175 if (val == TIFF_GEO_KEY_UNDEFINED)
176 return av_strdup("undefined");
177 if (val == TIFF_GEO_KEY_USER_DEFINED)
178 return av_strdup("User-Defined");
179
180 #define RET_GEOKEY_VAL(TYPE, array)\
181 if (val >= TIFF_##TYPE##_OFFSET &&\
182 val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(tiff_##array##_codes))\
183 return av_strdup(tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET]);
184
185 switch (key) {
186 case TIFF_GT_MODEL_TYPE_GEOKEY:
187 RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
188 break;
189 case TIFF_GT_RASTER_TYPE_GEOKEY:
190 RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
191 break;
192 case TIFF_GEOG_LINEAR_UNITS_GEOKEY:
193 case TIFF_PROJ_LINEAR_UNITS_GEOKEY:
194 case TIFF_VERTICAL_UNITS_GEOKEY:
195 RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
196 break;
197 case TIFF_GEOG_ANGULAR_UNITS_GEOKEY:
198 case TIFF_GEOG_AZIMUTH_UNITS_GEOKEY:
199 RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
200 break;
201 case TIFF_GEOGRAPHIC_TYPE_GEOKEY:
202 RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
203 RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
204 break;
205 case TIFF_GEOG_GEODETIC_DATUM_GEOKEY:
206 RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
207 RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
208 break;
209 case TIFF_GEOG_ELLIPSOID_GEOKEY:
210 RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
211 break;
212 case TIFF_GEOG_PRIME_MERIDIAN_GEOKEY:
213 RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
214 break;
215 case TIFF_PROJECTED_CS_TYPE_GEOKEY:
216 ap = av_strdup(search_keyval(tiff_proj_cs_type_codes, FF_ARRAY_ELEMS(tiff_proj_cs_type_codes), val));
217 if(ap) return ap;
218 break;
219 case TIFF_PROJECTION_GEOKEY:
220 ap = av_strdup(search_keyval(tiff_projection_codes, FF_ARRAY_ELEMS(tiff_projection_codes), val));
221 if(ap) return ap;
222 break;
223 case TIFF_PROJ_COORD_TRANS_GEOKEY:
224 RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
225 break;
226 case TIFF_VERTICAL_CS_TYPE_GEOKEY:
227 RET_GEOKEY_VAL(VERT_CS, vert_cs);
228 RET_GEOKEY_VAL(ORTHO_VERT_CS, ortho_vert_cs);
229 break;
230
231 }
232
233 ap = av_malloc(14);
234 if (ap)
235 snprintf(ap, 14, "Unknown-%d", val);
236 return ap;
237 }
238
239 static char *doubles2str(double *dp, int count, const char *sep)
240 {
241 int i;
242 char *ap, *ap0;
243 uint64_t component_len;
244 if (!sep) sep = ", ";
245 component_len = 24LL + strlen(sep);
246 if (count >= (INT_MAX - 1)/component_len)
247 return NULL;
248 ap = av_malloc(component_len * count + 1);
249 if (!ap)
250 return NULL;
251 ap0 = ap;
252 ap[0] = '\0';
253 for (i = 0; i < count; i++) {
254 unsigned l = snprintf(ap, component_len, "%.15g%s", dp[i], sep);
255 if(l >= component_len) {
256 av_free(ap0);
257 return NULL;
258 }
259 ap += l;
260 }
261 ap0[strlen(ap0) - strlen(sep)] = '\0';
262 return ap0;
263 }
264
265 14 static int add_metadata(int count, int type,
266 const char *name, const char *sep, TiffContext *s, AVFrame *frame)
267 {
268
2/4
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
✓ Branch 2 taken 12 times.
✗ Branch 3 not taken.
14 switch(type) {
269 case TIFF_DOUBLE: return ff_tadd_doubles_metadata(count, name, sep, &s->gb, s->le, &frame->metadata);
270 2 case TIFF_SHORT : return ff_tadd_shorts_metadata(count, name, sep, &s->gb, s->le, 0, &frame->metadata);
271 12 case TIFF_STRING: return ff_tadd_string_metadata(count, name, &s->gb, s->le, &frame->metadata);
272 default : return AVERROR_INVALIDDATA;
273 };
274 }
275
276 /**
277 * Map stored raw sensor values into linear reference values (see: DNG Specification - Chapter 5)
278 */
279 static uint16_t av_always_inline dng_process_color16(uint16_t value,
280 const uint16_t *lut,
281 uint16_t black_level,
282 float scale_factor)
283 {
284 float value_norm;
285
286 // Lookup table lookup
287 if (lut)
288 value = lut[value];
289
290 // Black level subtraction
291 value = av_clip_uint16_c((unsigned)value - black_level);
292
293 // Color scaling
294 value_norm = (float)value * scale_factor;
295
296 value = av_clip_uint16_c(value_norm * 65535);
297
298 return value;
299 }
300
301 static uint16_t av_always_inline dng_process_color8(uint16_t value,
302 const uint16_t *lut,
303 uint16_t black_level,
304 float scale_factor)
305 {
306 return dng_process_color16(value, lut, black_level, scale_factor) >> 8;
307 }
308
309 static void av_always_inline dng_blit(TiffContext *s, uint8_t *dst, int dst_stride,
310 const uint8_t *src, int src_stride, int width, int height,
311 int is_single_comp, int is_u16)
312 {
313 int line, col;
314 float scale_factor;
315
316 scale_factor = 1.0f / (s->white_level - s->black_level);
317
318 if (is_single_comp) {
319 if (!is_u16)
320 return; /* <= 8bpp unsupported */
321
322 /* Image is double the width and half the height we need, each row comprises 2 rows of the output
323 (split vertically in the middle). */
324 for (line = 0; line < height / 2; line++) {
325 uint16_t *dst_u16 = (uint16_t *)dst;
326 uint16_t *src_u16 = (uint16_t *)src;
327
328 /* Blit first half of input row row to initial row of output */
329 for (col = 0; col < width; col++)
330 *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level, scale_factor);
331
332 /* Advance the destination pointer by a row (source pointer remains in the same place) */
333 dst += dst_stride * sizeof(uint16_t);
334 dst_u16 = (uint16_t *)dst;
335
336 /* Blit second half of input row row to next row of output */
337 for (col = 0; col < width; col++)
338 *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level, scale_factor);
339
340 dst += dst_stride * sizeof(uint16_t);
341 src += src_stride * sizeof(uint16_t);
342 }
343 } else {
344 /* Input and output image are the same size and the MJpeg decoder has done per-component
345 deinterleaving, so blitting here is straightforward. */
346 if (is_u16) {
347 for (line = 0; line < height; line++) {
348 uint16_t *dst_u16 = (uint16_t *)dst;
349 uint16_t *src_u16 = (uint16_t *)src;
350
351 for (col = 0; col < width; col++)
352 *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level, scale_factor);
353
354 dst += dst_stride * sizeof(uint16_t);
355 src += src_stride * sizeof(uint16_t);
356 }
357 } else {
358 for (line = 0; line < height; line++) {
359 uint8_t *dst_u8 = dst;
360 const uint8_t *src_u8 = src;
361
362 for (col = 0; col < width; col++)
363 *dst_u8++ = dng_process_color8(*src_u8++, s->dng_lut, s->black_level, scale_factor);
364
365 dst += dst_stride;
366 src += src_stride;
367 }
368 }
369 }
370 }
371
372 42246 static void av_always_inline horizontal_fill(TiffContext *s,
373 unsigned int bpp, uint8_t* dst,
374 int usePtr, const uint8_t *src,
375 uint8_t c, int width, int offset)
376 {
377
1/5
✗ Branch 0 not taken.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
✓ Branch 4 taken 42246 times.
42246 switch (bpp) {
378 case 1:
379 while (--width >= 0) {
380 dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
381 dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
382 dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
383 dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
384 dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
385 dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
386 dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
387 dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
388 }
389 break;
390 case 2:
391 while (--width >= 0) {
392 dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
393 dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
394 dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
395 dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
396 }
397 break;
398 case 4:
399 while (--width >= 0) {
400 dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
401 dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
402 }
403 break;
404 case 10:
405 case 12:
406 case 14: {
407 uint16_t *dst16 = (uint16_t *)dst;
408 int is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
409 uint8_t shift = is_dng ? 0 : 16 - bpp;
410 GetBitContext gb;
411
412 init_get_bits8(&gb, src, width);
413 for (int i = 0; i < s->width; i++) {
414 dst16[i] = get_bits(&gb, bpp) << shift;
415 }
416 }
417 break;
418 42246 default:
419
2/2
✓ Branch 0 taken 39747 times.
✓ Branch 1 taken 2499 times.
42246 if (usePtr) {
420 39747 memcpy(dst + offset, src, width);
421 } else {
422 2499 memset(dst + offset, c, width);
423 }
424 }
425 42246 }
426
427 36 static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
428 {
429 int i;
430
431 36 av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
432
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 36 times.
36 if (!s->deinvert_buf)
433 return AVERROR(ENOMEM);
434
2/2
✓ Branch 0 taken 502238 times.
✓ Branch 1 taken 36 times.
502274 for (i = 0; i < size; i++)
435 502238 s->deinvert_buf[i] = ff_reverse[src[i]];
436
437 36 return 0;
438 }
439
440 static void unpack_gray(TiffContext *s, AVFrame *p,
441 const uint8_t *src, int lnum, int width, int bpp)
442 {
443 GetBitContext gb;
444 uint16_t *dst = (uint16_t *)(p->data[0] + lnum * p->linesize[0]);
445
446 init_get_bits8(&gb, src, width);
447
448 for (int i = 0; i < s->width; i++) {
449 dst[i] = get_bits(&gb, bpp);
450 }
451 }
452
453 static void unpack_yuv(TiffContext *s, AVFrame *p,
454 const uint8_t *src, int lnum)
455 {
456 int i, j, k;
457 int w = (s->width - 1) / s->subsampling[0] + 1;
458 uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
459 uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
460 if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
461 for (i = 0; i < w; i++) {
462 for (j = 0; j < s->subsampling[1]; j++)
463 for (k = 0; k < s->subsampling[0]; k++)
464 p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
465 FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++;
466 *pu++ = *src++;
467 *pv++ = *src++;
468 }
469 }else{
470 for (i = 0; i < w; i++) {
471 for (j = 0; j < s->subsampling[1]; j++)
472 for (k = 0; k < s->subsampling[0]; k++)
473 p->data[0][(lnum + j) * p->linesize[0] +
474 i * s->subsampling[0] + k] = *src++;
475 *pu++ = *src++;
476 *pv++ = *src++;
477 }
478 }
479 }
480
481 #if CONFIG_ZLIB
482 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
483 int size)
484 {
485 z_stream zstream = { 0 };
486 int zret;
487
488 zstream.next_in = src;
489 zstream.avail_in = size;
490 zstream.next_out = dst;
491 zstream.avail_out = *len;
492 zret = inflateInit(&zstream);
493 if (zret != Z_OK) {
494 av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
495 return zret;
496 }
497 zret = inflate(&zstream, Z_SYNC_FLUSH);
498 inflateEnd(&zstream);
499 *len = zstream.total_out;
500 return zret == Z_STREAM_END ? Z_OK : zret;
501 }
502
503 static int tiff_unpack_zlib(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
504 const uint8_t *src, int size, int width, int lines,
505 int strip_start, int is_yuv)
506 {
507 uint8_t *zbuf;
508 unsigned long outlen;
509 int ret, line;
510 outlen = width * lines;
511 zbuf = av_malloc(outlen);
512 if (!zbuf)
513 return AVERROR(ENOMEM);
514 if (s->fill_order) {
515 if ((ret = deinvert_buffer(s, src, size)) < 0) {
516 av_free(zbuf);
517 return ret;
518 }
519 src = s->deinvert_buf;
520 }
521 ret = tiff_uncompress(zbuf, &outlen, src, size);
522 if (ret != Z_OK) {
523 av_log(s->avctx, AV_LOG_ERROR,
524 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
525 (unsigned long)width * lines, ret);
526 av_free(zbuf);
527 return AVERROR_UNKNOWN;
528 }
529 src = zbuf;
530 for (line = 0; line < lines; line++) {
531 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
532 horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
533 } else {
534 memcpy(dst, src, width);
535 }
536 if (is_yuv) {
537 unpack_yuv(s, p, dst, strip_start + line);
538 line += s->subsampling[1] - 1;
539 }
540 dst += stride;
541 src += width;
542 }
543 av_free(zbuf);
544 return 0;
545 }
546 #endif
547
548 #if CONFIG_LZMA
549 static int tiff_uncompress_lzma(uint8_t *dst, uint64_t *len, const uint8_t *src,
550 int size)
551 {
552 lzma_stream stream = LZMA_STREAM_INIT;
553 lzma_ret ret;
554
555 stream.next_in = (uint8_t *)src;
556 stream.avail_in = size;
557 stream.next_out = dst;
558 stream.avail_out = *len;
559 ret = lzma_stream_decoder(&stream, UINT64_MAX, 0);
560 if (ret != LZMA_OK) {
561 av_log(NULL, AV_LOG_ERROR, "LZMA init error: %d\n", ret);
562 return ret;
563 }
564 ret = lzma_code(&stream, LZMA_RUN);
565 lzma_end(&stream);
566 *len = stream.total_out;
567 return ret == LZMA_STREAM_END ? LZMA_OK : ret;
568 }
569
570 static int tiff_unpack_lzma(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
571 const uint8_t *src, int size, int width, int lines,
572 int strip_start, int is_yuv)
573 {
574 uint64_t outlen = width * (uint64_t)lines;
575 int ret, line;
576 uint8_t *buf = av_malloc(outlen);
577 if (!buf)
578 return AVERROR(ENOMEM);
579 if (s->fill_order) {
580 if ((ret = deinvert_buffer(s, src, size)) < 0) {
581 av_free(buf);
582 return ret;
583 }
584 src = s->deinvert_buf;
585 }
586 ret = tiff_uncompress_lzma(buf, &outlen, src, size);
587 if (ret != LZMA_OK) {
588 av_log(s->avctx, AV_LOG_ERROR,
589 "Uncompressing failed (%"PRIu64" of %"PRIu64") with error %d\n", outlen,
590 (uint64_t)width * lines, ret);
591 av_free(buf);
592 return AVERROR_UNKNOWN;
593 }
594 src = buf;
595 for (line = 0; line < lines; line++) {
596 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
597 horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
598 } else {
599 memcpy(dst, src, width);
600 }
601 if (is_yuv) {
602 unpack_yuv(s, p, dst, strip_start + line);
603 line += s->subsampling[1] - 1;
604 }
605 dst += stride;
606 src += width;
607 }
608 av_free(buf);
609 return 0;
610 }
611 #endif
612
613 36 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
614 const uint8_t *src, int size, int width, int lines)
615 {
616 int line;
617 int ret;
618
619
1/2
✓ Branch 0 taken 36 times.
✗ Branch 1 not taken.
36 if (s->fill_order) {
620
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 36 times.
36 if ((ret = deinvert_buffer(s, src, size)) < 0)
621 return ret;
622 36 src = s->deinvert_buf;
623 }
624 36 ret = ff_ccitt_unpack(s->avctx, src, size, dst, lines, stride,
625 s->compr, s->fax_opts);
626
2/4
✓ Branch 0 taken 36 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 36 times.
36 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
627 for (line = 0; line < lines; line++) {
628 horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
629 dst += stride;
630 }
631 36 return ret;
632 }
633
634 static int dng_decode_jpeg(AVCodecContext *avctx, AVFrame *frame,
635 int tile_byte_count, int dst_x, int dst_y, int w, int h)
636 {
637 TiffContext *s = avctx->priv_data;
638 uint8_t *dst_data, *src_data;
639 uint32_t dst_offset; /* offset from dst buffer in pixels */
640 int is_single_comp, is_u16, pixel_size;
641 int ret;
642
643 if (tile_byte_count < 0 || tile_byte_count > bytestream2_get_bytes_left(&s->gb))
644 return AVERROR_INVALIDDATA;
645
646 /* Prepare a packet and send to the MJPEG decoder */
647 av_packet_unref(s->jpkt);
648 s->jpkt->data = (uint8_t*)s->gb.buffer;
649 s->jpkt->size = tile_byte_count;
650
651 if (s->is_bayer) {
652 MJpegDecodeContext *mjpegdecctx = s->avctx_mjpeg->priv_data;
653 /* We have to set this information here, there is no way to know if a given JPEG is a DNG-embedded
654 image or not from its own data (and we need that information when decoding it). */
655 mjpegdecctx->bayer = 1;
656 }
657
658 ret = avcodec_send_packet(s->avctx_mjpeg, s->jpkt);
659 if (ret < 0) {
660 av_log(avctx, AV_LOG_ERROR, "Error submitting a packet for decoding\n");
661 return ret;
662 }
663
664 ret = avcodec_receive_frame(s->avctx_mjpeg, s->jpgframe);
665 if (ret < 0) {
666 av_log(avctx, AV_LOG_ERROR, "JPEG decoding error: %s.\n", av_err2str(ret));
667
668 /* Normally skip, error if explode */
669 if (avctx->err_recognition & AV_EF_EXPLODE)
670 return AVERROR_INVALIDDATA;
671 else
672 return 0;
673 }
674
675 is_u16 = (s->bpp > 8);
676
677 /* Copy the outputted tile's pixels from 'jpgframe' to 'frame' (final buffer) */
678
679 if (s->jpgframe->width != s->avctx_mjpeg->width ||
680 s->jpgframe->height != s->avctx_mjpeg->height ||
681 s->jpgframe->format != s->avctx_mjpeg->pix_fmt)
682 return AVERROR_INVALIDDATA;
683
684 /* See dng_blit for explanation */
685 if (s->avctx_mjpeg->width == w * 2 &&
686 s->avctx_mjpeg->height == h / 2 &&
687 s->avctx_mjpeg->pix_fmt == AV_PIX_FMT_GRAY16LE) {
688 is_single_comp = 1;
689 } else if (s->avctx_mjpeg->width >= w &&
690 s->avctx_mjpeg->height >= h &&
691 s->avctx_mjpeg->pix_fmt == (is_u16 ? AV_PIX_FMT_GRAY16 : AV_PIX_FMT_GRAY8)
692 ) {
693 is_single_comp = 0;
694 } else
695 return AVERROR_INVALIDDATA;
696
697 pixel_size = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
698
699 if (is_single_comp && !is_u16) {
700 av_log(s->avctx, AV_LOG_ERROR, "DNGs with bpp <= 8 and 1 component are unsupported\n");
701 av_frame_unref(s->jpgframe);
702 return AVERROR_PATCHWELCOME;
703 }
704
705 dst_offset = dst_x + frame->linesize[0] * dst_y / pixel_size;
706 dst_data = frame->data[0] + dst_offset * pixel_size;
707 src_data = s->jpgframe->data[0];
708
709 dng_blit(s,
710 dst_data,
711 frame->linesize[0] / pixel_size,
712 src_data,
713 s->jpgframe->linesize[0] / pixel_size,
714 w,
715 h,
716 is_single_comp,
717 is_u16);
718
719 av_frame_unref(s->jpgframe);
720
721 return 0;
722 }
723
724 static int dng_decode_strip(AVCodecContext *avctx, AVFrame *frame)
725 {
726 TiffContext *s = avctx->priv_data;
727
728 s->jpgframe->width = s->width;
729 s->jpgframe->height = s->height;
730
731 s->avctx_mjpeg->width = s->width;
732 s->avctx_mjpeg->height = s->height;
733
734 return dng_decode_jpeg(avctx, frame, s->stripsize, 0, 0, s->width, s->height);
735 }
736
737 684 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;
742 684 const uint8_t *ssrc = src;
743 684 int width = ((s->width * s->bpp) + 7) >> 3;
744 684 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(p->format);
745 1404 int is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) &&
746
3/4
✓ Branch 0 taken 36 times.
✓ Branch 1 taken 648 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 36 times.
684 (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 684 times.
684 if (s->planar)
751 width /= s->bppcount;
752
753
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 684 times.
684 if (size <= 0)
754 return AVERROR_INVALIDDATA;
755
756
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 684 times.
684 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 684 times.
684 if (s->is_bayer) {
773 av_assert0(width == (s->bpp * s->width + 7) >> 3);
774 }
775
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 684 times.
684 if (p->format == AV_PIX_FMT_GRAY12) {
776 av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, width);
777 if (s->yuv_line == NULL) {
778 av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
779 return AVERROR(ENOMEM);
780 }
781 dst = s->yuv_line;
782 stride = 0;
783 }
784
785
2/4
✓ Branch 0 taken 684 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 684 times.
684 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
786 #if CONFIG_ZLIB
787 return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines,
788 strip_start, is_yuv);
789 #else
790 av_log(s->avctx, AV_LOG_ERROR,
791 "zlib support not enabled, "
792 "deflate compression not supported\n");
793 return AVERROR(ENOSYS);
794 #endif
795 }
796
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 684 times.
684 if (s->compr == TIFF_LZMA) {
797 #if CONFIG_LZMA
798 return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
799 strip_start, is_yuv);
800 #else
801 av_log(s->avctx, AV_LOG_ERROR,
802 "LZMA support not enabled\n");
803 return AVERROR(ENOSYS);
804 #endif
805 }
806
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 684 times.
684 if (s->compr == TIFF_LZW) {
807 if (s->fill_order) {
808 if ((ret = deinvert_buffer(s, src, size)) < 0)
809 return ret;
810 ssrc = src = s->deinvert_buf;
811 }
812 if (size > 1 && !src[0] && (src[1]&1)) {
813 av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
814 }
815 if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
816 av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
817 return ret;
818 }
819 for (line = 0; line < lines; line++) {
820 pixels = ff_lzw_decode(s->lzw, dst, width);
821 if (pixels < width) {
822 av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
823 pixels, width);
824 return AVERROR_INVALIDDATA;
825 }
826 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
827 horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
828 if (is_yuv) {
829 unpack_yuv(s, p, dst, strip_start + line);
830 line += s->subsampling[1] - 1;
831 } else if (p->format == AV_PIX_FMT_GRAY12) {
832 unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
833 }
834 dst += stride;
835 }
836 return 0;
837 }
838
1/2
✓ Branch 0 taken 684 times.
✗ Branch 1 not taken.
684 if (s->compr == TIFF_CCITT_RLE ||
839
2/2
✓ Branch 0 taken 648 times.
✓ Branch 1 taken 36 times.
684 s->compr == TIFF_G3 ||
840
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 648 times.
648 s->compr == TIFF_G4) {
841
2/4
✓ Branch 0 taken 36 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 36 times.
36 if (is_yuv || p->format == AV_PIX_FMT_GRAY12)
842 return AVERROR_INVALIDDATA;
843
844 36 return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
845 }
846
847 648 bytestream2_init(&s->gb, src, size);
848
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 648 times.
648 bytestream2_init_writer(&pb, dst, is_yuv ? s->yuv_line_size : (stride * lines));
849
850
2/4
✓ Branch 0 taken 648 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 648 times.
648 is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
851
852 /* Decode JPEG-encoded DNGs with strips */
853
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 648 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
648 if (s->compr == TIFF_NEWJPEG && is_dng) {
854 if (s->strips > 1) {
855 av_log(s->avctx, AV_LOG_ERROR, "More than one DNG JPEG strips unsupported\n");
856 return AVERROR_PATCHWELCOME;
857 }
858 if ((ret = dng_decode_strip(s->avctx, p)) < 0)
859 return ret;
860 return 0;
861 }
862
863
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 648 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
648 if (is_dng && stride == 0)
864 return AVERROR_INVALIDDATA;
865
866
2/2
✓ Branch 0 taken 4544 times.
✓ Branch 1 taken 648 times.
5192 for (line = 0; line < lines; line++) {
867
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4544 times.
4544 if (src - ssrc > size) {
868 av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
869 return AVERROR_INVALIDDATA;
870 }
871
872
2/4
✓ Branch 1 taken 4544 times.
✗ Branch 2 not taken.
✓ Branch 4 taken 4544 times.
✗ Branch 5 not taken.
4544 if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb))
873 break;
874 4544 bytestream2_seek_p(&pb, stride * line, SEEK_SET);
875
2/3
✓ Branch 0 taken 224 times.
✓ Branch 1 taken 4320 times.
✗ Branch 2 not taken.
4544 switch (s->compr) {
876 224 case TIFF_RAW:
877
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 224 times.
224 if (ssrc + size - src < width)
878 return AVERROR_INVALIDDATA;
879
880
1/2
✓ Branch 0 taken 224 times.
✗ Branch 1 not taken.
224 if (!s->fill_order) {
881
2/4
✓ Branch 0 taken 224 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 224 times.
224 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 || s->is_bayer),
882 dst, 1, src, 0, width, 0);
883 } else {
884 int i;
885 for (i = 0; i < width; i++)
886 dst[i] = ff_reverse[src[i]];
887 }
888
889 /* Color processing for DNG images with uncompressed strips (non-tiled) */
890
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 224 times.
224 if (is_dng) {
891 int is_u16, pixel_size_bytes, pixel_size_bits, elements;
892
893 is_u16 = (s->bpp / s->bppcount > 8);
894 pixel_size_bits = (is_u16 ? 16 : 8);
895 pixel_size_bytes = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
896
897 elements = width / pixel_size_bytes * pixel_size_bits / s->bpp * s->bppcount; // need to account for [1, 16] bpp
898 av_assert0 (elements * pixel_size_bytes <= FFABS(stride));
899 dng_blit(s,
900 dst,
901 0, // no stride, only 1 line
902 dst,
903 0, // no stride, only 1 line
904 elements,
905 1,
906 0, // single-component variation is only preset in JPEG-encoded DNGs
907 is_u16);
908 }
909
910 224 src += width;
911 224 break;
912 4320 case TIFF_PACKBITS:
913
2/2
✓ Branch 0 taken 42022 times.
✓ Branch 1 taken 4320 times.
46342 for (pixels = 0; pixels < width;) {
914
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 42022 times.
42022 if (ssrc + size - src < 2) {
915 av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
916 return AVERROR_INVALIDDATA;
917 }
918
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 42022 times.
42022 code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
919
2/2
✓ Branch 0 taken 39523 times.
✓ Branch 1 taken 2499 times.
42022 if (code >= 0) {
920 39523 code++;
921
1/2
✓ Branch 0 taken 39523 times.
✗ Branch 1 not taken.
39523 if (pixels + code > width ||
922
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 39523 times.
39523 ssrc + size - src < code) {
923 av_log(s->avctx, AV_LOG_ERROR,
924 "Copy went out of bounds\n");
925 return AVERROR_INVALIDDATA;
926 }
927 39523 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
928 dst, 1, src, 0, code, pixels);
929 39523 src += code;
930 39523 pixels += code;
931
1/2
✓ Branch 0 taken 2499 times.
✗ Branch 1 not taken.
2499 } else if (code != -128) { // -127..-1
932 2499 code = (-code) + 1;
933
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2499 times.
2499 if (pixels + code > width) {
934 av_log(s->avctx, AV_LOG_ERROR,
935 "Run went out of bounds\n");
936 return AVERROR_INVALIDDATA;
937 }
938 2499 c = *src++;
939 2499 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
940 dst, 0, NULL, c, code, pixels);
941 2499 pixels += code;
942 }
943 }
944
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4320 times.
4320 if (s->fill_order) {
945 int i;
946 for (i = 0; i < width; i++)
947 dst[i] = ff_reverse[dst[i]];
948 }
949 4320 break;
950 }
951
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4544 times.
4544 if (is_yuv) {
952 unpack_yuv(s, p, dst, strip_start + line);
953 line += s->subsampling[1] - 1;
954
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4544 times.
4544 } else if (p->format == AV_PIX_FMT_GRAY12) {
955 unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
956 }
957 4544 dst += stride;
958 }
959 648 return 0;
960 }
961
962 static int dng_decode_tiles(AVCodecContext *avctx, AVFrame *frame,
963 const AVPacket *avpkt)
964 {
965 TiffContext *s = avctx->priv_data;
966 int tile_idx;
967 int tile_offset_offset, tile_offset;
968 int tile_byte_count_offset, tile_byte_count;
969 int tile_count_x, tile_count_y;
970 int tile_width, tile_length;
971 int has_width_leftover, has_height_leftover;
972 int tile_x = 0, tile_y = 0;
973 int pos_x = 0, pos_y = 0;
974 int ret;
975
976 s->jpgframe->width = s->tile_width;
977 s->jpgframe->height = s->tile_length;
978
979 s->avctx_mjpeg->width = s->tile_width;
980 s->avctx_mjpeg->height = s->tile_length;
981
982 has_width_leftover = (s->width % s->tile_width != 0);
983 has_height_leftover = (s->height % s->tile_length != 0);
984
985 /* Calculate tile counts (round up) */
986 tile_count_x = (s->width + s->tile_width - 1) / s->tile_width;
987 tile_count_y = (s->height + s->tile_length - 1) / s->tile_length;
988
989 /* Iterate over the number of tiles */
990 for (tile_idx = 0; tile_idx < s->tile_count; tile_idx++) {
991 tile_x = tile_idx % tile_count_x;
992 tile_y = tile_idx / tile_count_x;
993
994 if (has_width_leftover && tile_x == tile_count_x - 1) // If on the right-most tile
995 tile_width = s->width % s->tile_width;
996 else
997 tile_width = s->tile_width;
998
999 if (has_height_leftover && tile_y == tile_count_y - 1) // If on the bottom-most tile
1000 tile_length = s->height % s->tile_length;
1001 else
1002 tile_length = s->tile_length;
1003
1004 /* Read tile offset */
1005 tile_offset_offset = s->tile_offsets_offset + tile_idx * sizeof(int);
1006 bytestream2_seek(&s->gb, tile_offset_offset, SEEK_SET);
1007 tile_offset = ff_tget_long(&s->gb, s->le);
1008
1009 /* Read tile byte size */
1010 tile_byte_count_offset = s->tile_byte_counts_offset + tile_idx * sizeof(int);
1011 bytestream2_seek(&s->gb, tile_byte_count_offset, SEEK_SET);
1012 tile_byte_count = ff_tget_long(&s->gb, s->le);
1013
1014 /* Seek to tile data */
1015 bytestream2_seek(&s->gb, tile_offset, SEEK_SET);
1016
1017 /* Decode JPEG tile and copy it in the reference frame */
1018 ret = dng_decode_jpeg(avctx, frame, tile_byte_count, pos_x, pos_y, tile_width, tile_length);
1019
1020 if (ret < 0)
1021 return ret;
1022
1023 /* Advance current positions */
1024 pos_x += tile_width;
1025 if (tile_x == tile_count_x - 1) { // If on the right edge
1026 pos_x = 0;
1027 pos_y += tile_length;
1028 }
1029 }
1030
1031 /* Frame is ready to be output */
1032 frame->pict_type = AV_PICTURE_TYPE_I;
1033 frame->key_frame = 1;
1034
1035 return avpkt->size;
1036 }
1037
1038 21 static int init_image(TiffContext *s, ThreadFrame *frame)
1039 {
1040 int ret;
1041 21 int create_gray_palette = 0;
1042
1043 // make sure there is no aliasing in the following switch
1044
2/4
✓ Branch 0 taken 21 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 21 times.
21 if (s->bpp >= 100 || s->bppcount >= 10) {
1045 av_log(s->avctx, AV_LOG_ERROR,
1046 "Unsupported image parameters: bpp=%d, bppcount=%d\n",
1047 s->bpp, s->bppcount);
1048 return AVERROR_INVALIDDATA;
1049 }
1050
1051
2/19
✓ 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 not taken.
21 switch (s->planar * 1000 + s->bpp * 10 + s->bppcount + s->is_bayer * 10000) {
1052 4 case 11:
1053
1/2
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
4 if (!s->palette_is_set) {
1054 4 s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
1055 4 break;
1056 }
1057 case 21:
1058 case 41:
1059 s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
1060 if (!s->palette_is_set) {
1061 create_gray_palette = 1;
1062 }
1063 break;
1064 case 81:
1065 s->avctx->pix_fmt = s->palette_is_set ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_GRAY8;
1066 break;
1067 case 121:
1068 s->avctx->pix_fmt = AV_PIX_FMT_GRAY12;
1069 break;
1070 case 10081:
1071 switch (AV_RL32(s->pattern)) {
1072 case 0x02010100:
1073 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB8;
1074 break;
1075 case 0x00010102:
1076 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR8;
1077 break;
1078 case 0x01000201:
1079 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG8;
1080 break;
1081 case 0x01020001:
1082 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG8;
1083 break;
1084 default:
1085 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1086 AV_RL32(s->pattern));
1087 return AVERROR_PATCHWELCOME;
1088 }
1089 break;
1090 case 10101:
1091 case 10121:
1092 case 10141:
1093 case 10161:
1094 switch (AV_RL32(s->pattern)) {
1095 case 0x02010100:
1096 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB16;
1097 break;
1098 case 0x00010102:
1099 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR16;
1100 break;
1101 case 0x01000201:
1102 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG16;
1103 break;
1104 case 0x01020001:
1105 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG16;
1106 break;
1107 default:
1108 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1109 AV_RL32(s->pattern));
1110 return AVERROR_PATCHWELCOME;
1111 }
1112 break;
1113 17 case 243:
1114
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 17 times.
17 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1115 if (s->subsampling[0] == 1 && s->subsampling[1] == 1) {
1116 s->avctx->pix_fmt = AV_PIX_FMT_YUV444P;
1117 } else if (s->subsampling[0] == 2 && s->subsampling[1] == 1) {
1118 s->avctx->pix_fmt = AV_PIX_FMT_YUV422P;
1119 } else if (s->subsampling[0] == 4 && s->subsampling[1] == 1) {
1120 s->avctx->pix_fmt = AV_PIX_FMT_YUV411P;
1121 } else if (s->subsampling[0] == 1 && s->subsampling[1] == 2) {
1122 s->avctx->pix_fmt = AV_PIX_FMT_YUV440P;
1123 } else if (s->subsampling[0] == 2 && s->subsampling[1] == 2) {
1124 s->avctx->pix_fmt = AV_PIX_FMT_YUV420P;
1125 } else if (s->subsampling[0] == 4 && s->subsampling[1] == 4) {
1126 s->avctx->pix_fmt = AV_PIX_FMT_YUV410P;
1127 } else {
1128 av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr subsampling\n");
1129 return AVERROR_PATCHWELCOME;
1130 }
1131 } else
1132 17 s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
1133 17 break;
1134 case 161:
1135 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
1136 break;
1137 case 162:
1138 s->avctx->pix_fmt = AV_PIX_FMT_YA8;
1139 break;
1140 case 322:
1141 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_YA16LE : AV_PIX_FMT_YA16BE;
1142 break;
1143 case 324:
1144 s->avctx->pix_fmt = s->photometric == TIFF_PHOTOMETRIC_SEPARATED ? AV_PIX_FMT_RGB0 : AV_PIX_FMT_RGBA;
1145 break;
1146 case 405:
1147 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED)
1148 s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
1149 else {
1150 av_log(s->avctx, AV_LOG_ERROR,
1151 "bpp=40 without PHOTOMETRIC_SEPARATED is unsupported\n");
1152 return AVERROR_PATCHWELCOME;
1153 }
1154 break;
1155 case 483:
1156 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
1157 break;
1158 case 644:
1159 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
1160 break;
1161 case 1243:
1162 s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
1163 break;
1164 case 1324:
1165 s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
1166 break;
1167 case 1483:
1168 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE;
1169 break;
1170 case 1644:
1171 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE;
1172 break;
1173 default:
1174 av_log(s->avctx, AV_LOG_ERROR,
1175 "This format is not supported (bpp=%d, bppcount=%d)\n",
1176 s->bpp, s->bppcount);
1177 return AVERROR_INVALIDDATA;
1178 }
1179
1180
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
21 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1181 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
1182 if((desc->flags & AV_PIX_FMT_FLAG_RGB) ||
1183 !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) ||
1184 desc->nb_components < 3) {
1185 av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr variant\n");
1186 return AVERROR_INVALIDDATA;
1187 }
1188 }
1189
1190
3/4
✓ Branch 0 taken 16 times.
✓ Branch 1 taken 5 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 16 times.
21 if (s->width != s->avctx->width || s->height != s->avctx->height) {
1191 5 ret = ff_set_dimensions(s->avctx, s->width, s->height);
1192
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
5 if (ret < 0)
1193 return ret;
1194 }
1195
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 21 times.
21 if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
1196 return ret;
1197
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
21 if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
1198 if (!create_gray_palette)
1199 memcpy(frame->f->data[1], s->palette, sizeof(s->palette));
1200 else {
1201 /* make default grayscale pal */
1202 int i;
1203 uint32_t *pal = (uint32_t *)frame->f->data[1];
1204 for (i = 0; i < 1<<s->bpp; i++)
1205 pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
1206 }
1207 }
1208 21 return 0;
1209 }
1210
1211 42 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
1212 {
1213
2/2
✓ Branch 0 taken 21 times.
✓ Branch 1 taken 21 times.
42 int offset = tag == TIFF_YRES ? 2 : 0;
1214 42 s->res[offset++] = num;
1215 42 s->res[offset] = den;
1216
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]) {
1217 33 uint64_t num = s->res[2] * (uint64_t)s->res[1];
1218 33 uint64_t den = s->res[0] * (uint64_t)s->res[3];
1219
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) {
1220 num = num >> 1;
1221 den = den >> 1;
1222 }
1223 33 av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den,
1224 num, den, INT32_MAX);
1225
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 33 times.
33 if (!s->avctx->sample_aspect_ratio.den)
1226 s->avctx->sample_aspect_ratio = (AVRational) {0, 1};
1227 }
1228 42 }
1229
1230 299 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
1231 {
1232 AVFrameSideData *sd;
1233 GetByteContext gb_temp;
1234 299 unsigned tag, type, count, off, value = 0, value2 = 1; // value2 is a denominator so init. to 1
1235 int i, start;
1236 int pos;
1237 int ret;
1238 double *dp;
1239
1240 299 ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
1241
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 299 times.
299 if (ret < 0) {
1242 goto end;
1243 }
1244
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 299 times.
299 if (tag <= s->last_tag)
1245 return AVERROR_INVALIDDATA;
1246
1247 // We ignore TIFF_STRIP_SIZE as it is sometimes in the logic but wrong order around TIFF_STRIP_OFFS
1248
2/2
✓ Branch 0 taken 278 times.
✓ Branch 1 taken 21 times.
299 if (tag != TIFF_STRIP_SIZE)
1249 278 s->last_tag = tag;
1250
1251 299 off = bytestream2_tell(&s->gb);
1252
2/2
✓ Branch 0 taken 230 times.
✓ Branch 1 taken 69 times.
299 if (count == 1) {
1253
2/4
✓ Branch 0 taken 188 times.
✓ Branch 1 taken 42 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
230 switch (type) {
1254 188 case TIFF_BYTE:
1255 case TIFF_SHORT:
1256 case TIFF_LONG:
1257 188 value = ff_tget(&s->gb, type, s->le);
1258 188 break;
1259 42 case TIFF_RATIONAL:
1260 42 value = ff_tget(&s->gb, TIFF_LONG, s->le);
1261 42 value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
1262
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 42 times.
42 if (!value2) {
1263 av_log(s->avctx, AV_LOG_ERROR, "Invalid denominator in rational\n");
1264 return AVERROR_INVALIDDATA;
1265 }
1266
1267 42 break;
1268 case TIFF_STRING:
1269 if (count <= 4) {
1270 break;
1271 }
1272 default:
1273 value = UINT_MAX;
1274 }
1275 }
1276
1277
18/49
✓ Branch 0 taken 15 times.
✓ Branch 1 taken 21 times.
✓ Branch 2 taken 21 times.
✓ Branch 3 taken 21 times.
✓ Branch 4 taken 21 times.
✓ Branch 5 taken 21 times.
✓ Branch 6 taken 21 times.
✓ Branch 7 taken 21 times.
✓ Branch 8 taken 21 times.
✓ Branch 9 taken 42 times.
✗ 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 not taken.
✗ Branch 19 not taken.
✗ Branch 20 not taken.
✓ Branch 21 taken 21 times.
✓ Branch 22 taken 6 times.
✗ Branch 23 not taken.
✓ Branch 24 taken 6 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 not taken.
✓ 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 2 times.
✓ Branch 45 taken 2 times.
✗ Branch 46 not taken.
✗ Branch 47 not taken.
✓ Branch 48 taken 27 times.
299 switch (tag) {
1278 15 case TIFF_SUBFILE:
1279 15 s->is_thumbnail = (value != 0);
1280 15 break;
1281 21 case TIFF_WIDTH:
1282 21 s->width = value;
1283 21 break;
1284 21 case TIFF_HEIGHT:
1285 21 s->height = value;
1286 21 break;
1287 21 case TIFF_BPP:
1288
2/4
✓ Branch 0 taken 21 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 21 times.
21 if (count > 5 || count <= 0) {
1289 av_log(s->avctx, AV_LOG_ERROR,
1290 "This format is not supported (bpp=%d, %d components)\n",
1291 value, count);
1292 return AVERROR_INVALIDDATA;
1293 }
1294 21 s->bppcount = count;
1295
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 17 times.
21 if (count == 1)
1296 4 s->bpp = value;
1297 else {
1298
1/2
✓ Branch 0 taken 17 times.
✗ Branch 1 not taken.
17 switch (type) {
1299 17 case TIFF_BYTE:
1300 case TIFF_SHORT:
1301 case TIFF_LONG:
1302 17 s->bpp = 0;
1303
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 17 times.
17 if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
1304 return AVERROR_INVALIDDATA;
1305
2/2
✓ Branch 0 taken 51 times.
✓ Branch 1 taken 17 times.
68 for (i = 0; i < count; i++)
1306 51 s->bpp += ff_tget(&s->gb, type, s->le);
1307 17 break;
1308 default:
1309 s->bpp = -1;
1310 }
1311 }
1312 21 break;
1313 21 case TIFF_SAMPLES_PER_PIXEL:
1314
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
21 if (count != 1) {
1315 av_log(s->avctx, AV_LOG_ERROR,
1316 "Samples per pixel requires a single value, many provided\n");
1317 return AVERROR_INVALIDDATA;
1318 }
1319
2/4
✓ Branch 0 taken 21 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 21 times.
21 if (value > 5 || value <= 0) {
1320 av_log(s->avctx, AV_LOG_ERROR,
1321 "Invalid samples per pixel %d\n", value);
1322 return AVERROR_INVALIDDATA;
1323 }
1324
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 17 times.
21 if (s->bppcount == 1)
1325 4 s->bpp *= value;
1326 21 s->bppcount = value;
1327 21 break;
1328 21 case TIFF_COMPR:
1329 21 s->compr = value;
1330 21 av_log(s->avctx, AV_LOG_DEBUG, "compression: %d\n", s->compr);
1331 21 s->predictor = 0;
1332
2/6
✓ Branch 0 taken 17 times.
✓ Branch 1 taken 4 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
21 switch (s->compr) {
1333 17 case TIFF_RAW:
1334 case TIFF_PACKBITS:
1335 case TIFF_LZW:
1336 case TIFF_CCITT_RLE:
1337 17 break;
1338 4 case TIFF_G3:
1339 case TIFF_G4:
1340 4 s->fax_opts = 0;
1341 4 break;
1342 case TIFF_DEFLATE:
1343 case TIFF_ADOBE_DEFLATE:
1344 #if CONFIG_ZLIB
1345 break;
1346 #else
1347 av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
1348 return AVERROR(ENOSYS);
1349 #endif
1350 case TIFF_JPEG:
1351 case TIFF_NEWJPEG:
1352 s->is_jpeg = 1;
1353 break;
1354 case TIFF_LZMA:
1355 #if CONFIG_LZMA
1356 break;
1357 #else
1358 av_log(s->avctx, AV_LOG_ERROR, "LZMA not compiled in\n");
1359 return AVERROR(ENOSYS);
1360 #endif
1361 default:
1362 av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
1363 s->compr);
1364 return AVERROR_INVALIDDATA;
1365 }
1366 21 break;
1367 21 case TIFF_ROWSPERSTRIP:
1368
4/6
✓ Branch 0 taken 21 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 19 times.
✓ Branch 3 taken 2 times.
✗ Branch 4 not taken.
✓ Branch 5 taken 19 times.
21 if (!value || (type == TIFF_LONG && value == UINT_MAX))
1369 value = s->height;
1370 21 s->rps = FFMIN(value, s->height);
1371 21 break;
1372 21 case TIFF_STRIP_OFFS:
1373
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 19 times.
21 if (count == 1) {
1374
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
2 if (value > INT_MAX) {
1375 av_log(s->avctx, AV_LOG_ERROR,
1376 "strippos %u too large\n", value);
1377 return AVERROR_INVALIDDATA;
1378 }
1379 2 s->strippos = 0;
1380 2 s->stripoff = value;
1381 } else
1382 19 s->strippos = off;
1383 21 s->strips = count;
1384
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 19 times.
21 if (s->strips == 1)
1385 2 s->rps = s->height;
1386 21 s->sot = type;
1387 21 break;
1388 21 case TIFF_STRIP_SIZE:
1389
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 19 times.
21 if (count == 1) {
1390
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
2 if (value > INT_MAX) {
1391 av_log(s->avctx, AV_LOG_ERROR,
1392 "stripsize %u too large\n", value);
1393 return AVERROR_INVALIDDATA;
1394 }
1395 2 s->stripsizesoff = 0;
1396 2 s->stripsize = value;
1397 2 s->strips = 1;
1398 } else {
1399 19 s->stripsizesoff = off;
1400 }
1401 21 s->strips = count;
1402 21 s->sstype = type;
1403 21 break;
1404 42 case TIFF_XRES:
1405 case TIFF_YRES:
1406 42 set_sar(s, tag, value, value2);
1407 42 break;
1408 case TIFF_TILE_OFFSETS:
1409 s->tile_offsets_offset = off;
1410 s->tile_count = count;
1411 s->is_tiled = 1;
1412 break;
1413 case TIFF_TILE_BYTE_COUNTS:
1414 s->tile_byte_counts_offset = off;
1415 break;
1416 case TIFF_TILE_LENGTH:
1417 s->tile_length = value;
1418 break;
1419 case TIFF_TILE_WIDTH:
1420 s->tile_width = value;
1421 break;
1422 case TIFF_PREDICTOR:
1423 s->predictor = value;
1424 break;
1425 case TIFF_SUB_IFDS:
1426 if (count == 1)
1427 s->sub_ifd = value;
1428 else if (count > 1)
1429 s->sub_ifd = ff_tget(&s->gb, TIFF_LONG, s->le); /** Only get the first SubIFD */
1430 break;
1431 case DNG_LINEARIZATION_TABLE:
1432 if (count > FF_ARRAY_ELEMS(s->dng_lut))
1433 return AVERROR_INVALIDDATA;
1434 for (int i = 0; i < count; i++)
1435 s->dng_lut[i] = ff_tget(&s->gb, type, s->le);
1436 break;
1437 case DNG_BLACK_LEVEL:
1438 if (count > 1) { /* Use the first value in the pattern (assume they're all the same) */
1439 if (type == TIFF_RATIONAL) {
1440 value = ff_tget(&s->gb, TIFF_LONG, s->le);
1441 value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
1442 if (!value2) {
1443 av_log(s->avctx, AV_LOG_ERROR, "Invalid black level denominator\n");
1444 return AVERROR_INVALIDDATA;
1445 }
1446
1447 s->black_level = value / value2;
1448 } else
1449 s->black_level = ff_tget(&s->gb, type, s->le);
1450 av_log(s->avctx, AV_LOG_WARNING, "Assuming black level pattern values are identical\n");
1451 } else {
1452 s->black_level = value / value2;
1453 }
1454 break;
1455 case DNG_WHITE_LEVEL:
1456 s->white_level = value;
1457 break;
1458 case TIFF_CFA_PATTERN_DIM:
1459 if (count != 2 || (ff_tget(&s->gb, type, s->le) != 2 &&
1460 ff_tget(&s->gb, type, s->le) != 2)) {
1461 av_log(s->avctx, AV_LOG_ERROR, "CFA Pattern dimensions are not 2x2\n");
1462 return AVERROR_INVALIDDATA;
1463 }
1464 break;
1465 case TIFF_CFA_PATTERN:
1466 s->is_bayer = 1;
1467 s->pattern[0] = ff_tget(&s->gb, type, s->le);
1468 s->pattern[1] = ff_tget(&s->gb, type, s->le);
1469 s->pattern[2] = ff_tget(&s->gb, type, s->le);
1470 s->pattern[3] = ff_tget(&s->gb, type, s->le);
1471 break;
1472
1/3
✓ Branch 0 taken 21 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
21 case TIFF_PHOTOMETRIC:
1473 switch (value) {
1474 21 case TIFF_PHOTOMETRIC_WHITE_IS_ZERO:
1475 case TIFF_PHOTOMETRIC_BLACK_IS_ZERO:
1476 case TIFF_PHOTOMETRIC_RGB:
1477 case TIFF_PHOTOMETRIC_PALETTE:
1478 case TIFF_PHOTOMETRIC_SEPARATED:
1479 case TIFF_PHOTOMETRIC_YCBCR:
1480 case TIFF_PHOTOMETRIC_CFA:
1481 case TIFF_PHOTOMETRIC_LINEAR_RAW: // Used by DNG images
1482 21 s->photometric = value;
1483 21 break;
1484 case TIFF_PHOTOMETRIC_ALPHA_MASK:
1485 case TIFF_PHOTOMETRIC_CIE_LAB:
1486 case TIFF_PHOTOMETRIC_ICC_LAB:
1487 case TIFF_PHOTOMETRIC_ITU_LAB:
1488 case TIFF_PHOTOMETRIC_LOG_L:
1489 case TIFF_PHOTOMETRIC_LOG_LUV:
1490 avpriv_report_missing_feature(s->avctx,
1491 "PhotometricInterpretation 0x%04X",
1492 value);
1493 return AVERROR_PATCHWELCOME;
1494 default:
1495 av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
1496 "unknown\n", value);
1497 return AVERROR_INVALIDDATA;
1498 }
1499 21 break;
1500 6 case TIFF_FILL_ORDER:
1501
2/4
✓ Branch 0 taken 6 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 6 times.
6 if (value < 1 || value > 2) {
1502 av_log(s->avctx, AV_LOG_ERROR,
1503 "Unknown FillOrder value %d, trying default one\n", value);
1504 value = 1;
1505 }
1506 6 s->fill_order = value - 1;
1507 6 break;
1508 case TIFF_PAL: {
1509 GetByteContext pal_gb[3];
1510 off = type_sizes[type];
1511 if (count / 3 > 256 ||
1512 bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
1513 return AVERROR_INVALIDDATA;
1514
1515 pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
1516 bytestream2_skip(&pal_gb[1], count / 3 * off);
1517 bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
1518
1519 off = (type_sizes[type] - 1) << 3;
1520 if (off > 31U) {
1521 av_log(s->avctx, AV_LOG_ERROR, "palette shift %d is out of range\n", off);
1522 return AVERROR_INVALIDDATA;
1523 }
1524
1525 for (i = 0; i < count / 3; i++) {
1526 uint32_t p = 0xFF000000;
1527 p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
1528 p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
1529 p |= ff_tget(&pal_gb[2], type, s->le) >> off;
1530 s->palette[i] = p;
1531 }
1532 s->palette_is_set = 1;
1533 break;
1534 }
1535 6 case TIFF_PLANAR:
1536 6 s->planar = value == 2;
1537 6 break;
1538 case TIFF_YCBCR_SUBSAMPLING:
1539 if (count != 2) {
1540 av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n");
1541 return AVERROR_INVALIDDATA;
1542 }
1543 for (i = 0; i < count; i++) {
1544 s->subsampling[i] = ff_tget(&s->gb, type, s->le);
1545 if (s->subsampling[i] <= 0) {
1546 av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]);
1547 s->subsampling[i] = 1;
1548 return AVERROR_INVALIDDATA;
1549 }
1550 }
1551 break;
1552 case TIFF_T4OPTIONS:
1553 if (s->compr == TIFF_G3)
1554 s->fax_opts = value;
1555 break;
1556 case TIFF_T6OPTIONS:
1557 if (s->compr == TIFF_G4)
1558 s->fax_opts = value;
1559 break;
1560 #define ADD_METADATA(count, name, sep)\
1561 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
1562 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
1563 goto end;\
1564 }
1565 case TIFF_MODEL_PIXEL_SCALE:
1566 ADD_METADATA(count, "ModelPixelScaleTag", NULL);
1567 break;
1568 case TIFF_MODEL_TRANSFORMATION:
1569 ADD_METADATA(count, "ModelTransformationTag", NULL);
1570 break;
1571 case TIFF_MODEL_TIEPOINT:
1572 ADD_METADATA(count, "ModelTiepointTag", NULL);
1573 break;
1574 case TIFF_GEO_KEY_DIRECTORY:
1575 if (s->geotag_count) {
1576 avpriv_request_sample(s->avctx, "Multiple geo key directories");
1577 return AVERROR_INVALIDDATA;
1578 }
1579 ADD_METADATA(1, "GeoTIFF_Version", NULL);
1580 ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
1581 s->geotag_count = ff_tget_short(&s->gb, s->le);
1582 if (s->geotag_count > count / 4 - 1) {
1583 s->geotag_count = count / 4 - 1;
1584 av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
1585 }
1586 if ( bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4
1587 || s->geotag_count == 0) {
1588 s->geotag_count = 0;
1589 return -1;
1590 }
1591 s->geotags = av_calloc(s->geotag_count, sizeof(*s->geotags));
1592 if (!s->geotags) {
1593 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1594 s->geotag_count = 0;
1595 goto end;
1596 }
1597 for (i = 0; i < s->geotag_count; i++) {
1598 s->geotags[i].key = ff_tget_short(&s->gb, s->le);
1599 s->geotags[i].type = ff_tget_short(&s->gb, s->le);
1600 s->geotags[i].count = ff_tget_short(&s->gb, s->le);
1601
1602 if (!s->geotags[i].type)
1603 s->geotags[i].val = get_geokey_val(s->geotags[i].key, ff_tget_short(&s->gb, s->le));
1604 else
1605 s->geotags[i].offset = ff_tget_short(&s->gb, s->le);
1606 }
1607 break;
1608 case TIFF_GEO_DOUBLE_PARAMS:
1609 if (count >= INT_MAX / sizeof(int64_t))
1610 return AVERROR_INVALIDDATA;
1611 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
1612 return AVERROR_INVALIDDATA;
1613 dp = av_malloc_array(count, sizeof(double));
1614 if (!dp) {
1615 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1616 goto end;
1617 }
1618 for (i = 0; i < count; i++)
1619 dp[i] = ff_tget_double(&s->gb, s->le);
1620 for (i = 0; i < s->geotag_count; i++) {
1621 if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
1622 if (s->geotags[i].count == 0
1623 || s->geotags[i].offset + s->geotags[i].count > count) {
1624 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1625 } else if (s->geotags[i].val) {
1626 av_log(s->avctx, AV_LOG_WARNING, "Duplicate GeoTIFF key %d\n", s->geotags[i].key);
1627 } else {
1628 char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
1629 if (!ap) {
1630 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1631 av_freep(&dp);
1632 return AVERROR(ENOMEM);
1633 }
1634 s->geotags[i].val = ap;
1635 }
1636 }
1637 }
1638 av_freep(&dp);
1639 break;
1640 case TIFF_GEO_ASCII_PARAMS:
1641 pos = bytestream2_tell(&s->gb);
1642 for (i = 0; i < s->geotag_count; i++) {
1643 if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
1644 if (s->geotags[i].count == 0
1645 || s->geotags[i].offset + s->geotags[i].count > count) {
1646 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1647 } else {
1648 char *ap;
1649
1650 bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
1651 if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
1652 return AVERROR_INVALIDDATA;
1653 if (s->geotags[i].val)
1654 return AVERROR_INVALIDDATA;
1655 ap = av_malloc(s->geotags[i].count);
1656 if (!ap) {
1657 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1658 return AVERROR(ENOMEM);
1659 }
1660 bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
1661 ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
1662 s->geotags[i].val = ap;
1663 }
1664 }
1665 }
1666 break;
1667 case TIFF_ICC_PROFILE:
1668 gb_temp = s->gb;
1669 bytestream2_seek(&gb_temp, SEEK_SET, off);
1670
1671 if (bytestream2_get_bytes_left(&gb_temp) < count)
1672 return AVERROR_INVALIDDATA;
1673
1674 sd = av_frame_new_side_data(frame, AV_FRAME_DATA_ICC_PROFILE, count);
1675 if (!sd)
1676 return AVERROR(ENOMEM);
1677
1678 bytestream2_get_bufferu(&gb_temp, sd->data, count);
1679 break;
1680 case TIFF_ARTIST:
1681 ADD_METADATA(count, "artist", NULL);
1682 break;
1683 case TIFF_COPYRIGHT:
1684 ADD_METADATA(count, "copyright", NULL);
1685 break;
1686 case TIFF_DATE:
1687 ADD_METADATA(count, "date", NULL);
1688 break;
1689 6 case TIFF_DOCUMENT_NAME:
1690
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 6 times.
6 ADD_METADATA(count, "document_name", NULL);
1691 6 break;
1692 case TIFF_HOST_COMPUTER:
1693 ADD_METADATA(count, "computer", NULL);
1694 break;
1695 4 case TIFF_IMAGE_DESCRIPTION:
1696
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 4 times.
4 ADD_METADATA(count, "description", NULL);
1697 4 break;
1698 case TIFF_MAKE:
1699 ADD_METADATA(count, "make", NULL);
1700 break;
1701 case TIFF_MODEL:
1702 ADD_METADATA(count, "model", NULL);
1703 break;
1704 case TIFF_PAGE_NAME:
1705 ADD_METADATA(count, "page_name", NULL);
1706 break;
1707 2 case TIFF_PAGE_NUMBER:
1708
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 2 times.
2 ADD_METADATA(count, "page_number", " / ");
1709 // need to seek back to re-read the page number
1710 2 bytestream2_seek(&s->gb, -count * sizeof(uint16_t), SEEK_CUR);
1711 // read the page number
1712 2 s->cur_page = ff_tget(&s->gb, TIFF_SHORT, s->le);
1713 // get back to where we were before the previous seek
1714 2 bytestream2_seek(&s->gb, count * sizeof(uint16_t) - sizeof(uint16_t), SEEK_CUR);
1715 2 break;
1716 2 case TIFF_SOFTWARE_NAME:
1717
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 2 times.
2 ADD_METADATA(count, "software", NULL);
1718 2 break;
1719 case DNG_VERSION:
1720 if (count == 4) {
1721 unsigned int ver[4];
1722 ver[0] = ff_tget(&s->gb, type, s->le);
1723 ver[1] = ff_tget(&s->gb, type, s->le);
1724 ver[2] = ff_tget(&s->gb, type, s->le);
1725 ver[3] = ff_tget(&s->gb, type, s->le);
1726
1727 av_log(s->avctx, AV_LOG_DEBUG, "DNG file, version %u.%u.%u.%u\n",
1728 ver[0], ver[1], ver[2], ver[3]);
1729
1730 tiff_set_type(s, TIFF_TYPE_DNG);
1731 }
1732 break;
1733 case CINEMADNG_TIME_CODES:
1734 case CINEMADNG_FRAME_RATE:
1735 case CINEMADNG_T_STOP:
1736 case CINEMADNG_REEL_NAME:
1737 case CINEMADNG_CAMERA_LABEL:
1738 tiff_set_type(s, TIFF_TYPE_CINEMADNG);
1739 break;
1740 27 default:
1741
1/2
✓ Branch 0 taken 27 times.
✗ Branch 1 not taken.
27 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1742 av_log(s->avctx, AV_LOG_ERROR,
1743 "Unknown or unsupported tag %d/0x%0X\n",
1744 tag, tag);
1745 return AVERROR_INVALIDDATA;
1746 }
1747 }
1748 27 end:
1749
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 299 times.
299 if (s->bpp > 64U) {
1750 av_log(s->avctx, AV_LOG_ERROR,
1751 "This format is not supported (bpp=%d, %d components)\n",
1752 s->bpp, count);
1753 s->bpp = 0;
1754 return AVERROR_INVALIDDATA;
1755 }
1756 299 bytestream2_seek(&s->gb, start, SEEK_SET);
1757 299 return 0;
1758 }
1759
1760 21 static int decode_frame(AVCodecContext *avctx,
1761 void *data, int *got_frame, AVPacket *avpkt)
1762 {
1763 21 TiffContext *const s = avctx->priv_data;
1764 21 AVFrame *const p = data;
1765 21 ThreadFrame frame = { .f = data };
1766 unsigned off, last_off;
1767 int le, ret, plane, planes;
1768 int i, j, entries, stride;
1769 unsigned soff, ssize;
1770 uint8_t *dst;
1771 GetByteContext stripsizes;
1772 GetByteContext stripdata;
1773 int retry_for_subifd, retry_for_page;
1774 int is_dng;
1775 int has_tile_bits, has_strip_bits;
1776
1777 21 bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1778
1779 // parse image header
1780
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 21 times.
21 if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
1781 av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
1782 return ret;
1783
2/4
✓ Branch 0 taken 21 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 21 times.
21 } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1784 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1785 return AVERROR_INVALIDDATA;
1786 }
1787 21 s->le = le;
1788 // TIFF_BPP is not a required tag and defaults to 1
1789
1790 21 s->tiff_type = TIFF_TYPE_TIFF;
1791 21 again:
1792 21 s->is_thumbnail = 0;
1793 21 s->bppcount = s->bpp = 1;
1794 21 s->photometric = TIFF_PHOTOMETRIC_NONE;
1795 21 s->compr = TIFF_RAW;
1796 21 s->fill_order = 0;
1797 21 s->white_level = 0;
1798 21 s->is_bayer = 0;
1799 21 s->is_tiled = 0;
1800 21 s->is_jpeg = 0;
1801 21 s->cur_page = 0;
1802 21 s->last_tag = 0;
1803
1804
2/2
✓ Branch 0 taken 1376256 times.
✓ Branch 1 taken 21 times.
1376277 for (i = 0; i < 65536; i++)
1805 1376256 s->dng_lut[i] = i;
1806
1807 21 free_geotags(s);
1808
1809 // Reset these offsets so we can tell if they were set this frame
1810 21 s->stripsizesoff = s->strippos = 0;
1811 /* parse image file directory */
1812 21 bytestream2_seek(&s->gb, off, SEEK_SET);
1813 21 entries = ff_tget_short(&s->gb, le);
1814
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 21 times.
21 if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1815 return AVERROR_INVALIDDATA;
1816
2/2
✓ Branch 0 taken 299 times.
✓ Branch 1 taken 21 times.
320 for (i = 0; i < entries; i++) {
1817
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 299 times.
299 if ((ret = tiff_decode_tag(s, p)) < 0)
1818 return ret;
1819 }
1820
1821
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
21 if (s->get_thumbnail && !s->is_thumbnail) {
1822 av_log(avctx, AV_LOG_INFO, "No embedded thumbnail present\n");
1823 return AVERROR_EOF;
1824 }
1825
1826 /** whether we should process this IFD's SubIFD */
1827
1/8
✗ Branch 0 not taken.
✓ Branch 1 taken 21 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.
21 retry_for_subifd = s->sub_ifd && (s->get_subimage || (!s->get_thumbnail && s->is_thumbnail));
1828 /** whether we should process this multi-page IFD's next page */
1829
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
21 retry_for_page = s->get_page && s->cur_page + 1 < s->get_page; // get_page is 1-indexed
1830
1831 21 last_off = off;
1832
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
21 if (retry_for_page) {
1833 // set offset to the next IFD
1834 off = ff_tget_long(&s->gb, le);
1835
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
21 } else if (retry_for_subifd) {
1836 // set offset to the SubIFD
1837 off = s->sub_ifd;
1838 }
1839
1840
2/4
✓ Branch 0 taken 21 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 21 times.
21 if (retry_for_subifd || retry_for_page) {
1841 if (!off) {
1842 av_log(avctx, AV_LOG_ERROR, "Requested entry not found\n");
1843 return AVERROR_INVALIDDATA;
1844 }
1845 if (off <= last_off) {
1846 avpriv_request_sample(s->avctx, "non increasing IFD offset");
1847 return AVERROR_INVALIDDATA;
1848 }
1849 if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1850 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1851 return AVERROR_INVALIDDATA;
1852 }
1853 s->sub_ifd = 0;
1854 goto again;
1855 }
1856
1857 /* At this point we've decided on which (Sub)IFD to process */
1858
1859
2/4
✓ Branch 0 taken 21 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 21 times.
21 is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
1860
1861
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
21 for (i = 0; i<s->geotag_count; i++) {
1862 const char *keyname = get_geokey_name(s->geotags[i].key);
1863 if (!keyname) {
1864 av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
1865 continue;
1866 }
1867 if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
1868 av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
1869 continue;
1870 }
1871 ret = av_dict_set(&p->metadata, keyname, s->geotags[i].val, 0);
1872 if (ret<0) {
1873 av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
1874 return ret;
1875 }
1876 }
1877
1878
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
21 if (is_dng) {
1879 int bps;
1880
1881 if (s->bpp % s->bppcount)
1882 return AVERROR_INVALIDDATA;
1883 bps = s->bpp / s->bppcount;
1884 if (bps < 8 || bps > 32)
1885 return AVERROR_INVALIDDATA;
1886
1887 if (s->white_level == 0)
1888 s->white_level = (1LL << bps) - 1; /* Default value as per the spec */
1889
1890 if (s->white_level <= s->black_level) {
1891 av_log(avctx, AV_LOG_ERROR, "BlackLevel (%"PRId32") must be less than WhiteLevel (%"PRId32")\n",
1892 s->black_level, s->white_level);
1893 return AVERROR_INVALIDDATA;
1894 }
1895
1896 if (s->planar)
1897 return AVERROR_PATCHWELCOME;
1898 }
1899
1900
4/6
✓ Branch 0 taken 21 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 2 times.
✓ Branch 3 taken 19 times.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.
21 if (!s->is_tiled && !s->strippos && !s->stripoff) {
1901 av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
1902 return AVERROR_INVALIDDATA;
1903 }
1904
1905
6/12
✓ Branch 0 taken 21 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 21 times.
✗ Branch 3 not taken.
✓ Branch 4 taken 21 times.
✗ Branch 5 not taken.
✓ Branch 6 taken 21 times.
✗ Branch 7 not taken.
✓ Branch 8 taken 21 times.
✗ Branch 9 not taken.
✗ Branch 10 not taken.
✓ Branch 11 taken 21 times.
21 has_tile_bits = s->is_tiled || s->tile_byte_counts_offset || s->tile_offsets_offset || s->tile_width || s->tile_length || s->tile_count;
1906
3/16
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 19 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 2 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.
21 has_strip_bits = s->strippos || s->strips || s->stripoff || s->rps || s->sot || s->sstype || s->stripsize || s->stripsizesoff;
1907
1908
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
21 if (has_tile_bits && has_strip_bits) {
1909 int tiled_dng = s->is_tiled && is_dng;
1910 av_log(avctx, tiled_dng ? AV_LOG_WARNING : AV_LOG_ERROR, "Tiled TIFF is not allowed to strip\n");
1911 if (!tiled_dng)
1912 return AVERROR_INVALIDDATA;
1913 }
1914
1915 /* now we have the data and may start decoding */
1916
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 21 times.
21 if ((ret = init_image(s, &frame)) < 0)
1917 return ret;
1918
1919
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
21 if (!s->is_tiled || has_strip_bits) {
1920
3/4
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 19 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 2 times.
21 if (s->strips == 1 && !s->stripsize) {
1921 av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
1922 s->stripsize = avpkt->size - s->stripoff;
1923 }
1924
1925
2/2
✓ Branch 0 taken 19 times.
✓ Branch 1 taken 2 times.
21 if (s->stripsizesoff) {
1926
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 19 times.
19 if (s->stripsizesoff >= (unsigned)avpkt->size)
1927 return AVERROR_INVALIDDATA;
1928 19 bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
1929 19 avpkt->size - s->stripsizesoff);
1930 }
1931
2/2
✓ Branch 0 taken 19 times.
✓ Branch 1 taken 2 times.
21 if (s->strippos) {
1932
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 19 times.
19 if (s->strippos >= (unsigned)avpkt->size)
1933 return AVERROR_INVALIDDATA;
1934 19 bytestream2_init(&stripdata, avpkt->data + s->strippos,
1935 19 avpkt->size - s->strippos);
1936 }
1937
1938
2/4
✓ Branch 0 taken 21 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 21 times.
21 if (s->rps <= 0 || s->rps % s->subsampling[1]) {
1939 av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1940 return AVERROR_INVALIDDATA;
1941 }
1942 }
1943
1944
1/2
✓ Branch 0 taken 21 times.
✗ Branch 1 not taken.
21 if (s->photometric == TIFF_PHOTOMETRIC_LINEAR_RAW ||
1945
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
21 s->photometric == TIFF_PHOTOMETRIC_CFA) {
1946 p->color_trc = AVCOL_TRC_LINEAR;
1947
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
21 } else if (s->photometric == TIFF_PHOTOMETRIC_BLACK_IS_ZERO) {
1948 p->color_trc = AVCOL_TRC_GAMMA22;
1949 }
1950
1951 /* Handle DNG images with JPEG-compressed tiles */
1952
1953
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
21 if (is_dng && s->is_tiled) {
1954 if (!s->is_jpeg) {
1955 avpriv_report_missing_feature(avctx, "DNG uncompressed tiled images");
1956 return AVERROR_PATCHWELCOME;
1957 } else if (!s->is_bayer) {
1958 avpriv_report_missing_feature(avctx, "DNG JPG-compressed tiled non-bayer-encoded images");
1959 return AVERROR_PATCHWELCOME;
1960 } else {
1961 if ((ret = dng_decode_tiles(avctx, (AVFrame*)data, avpkt)) > 0)
1962 *got_frame = 1;
1963 return ret;
1964 }
1965 }
1966
1967 /* Handle TIFF images and DNG images with uncompressed strips (non-tiled) */
1968
1969
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
21 planes = s->planar ? s->bppcount : 1;
1970
2/2
✓ Branch 0 taken 21 times.
✓ Branch 1 taken 21 times.
42 for (plane = 0; plane < planes; plane++) {
1971 21 uint8_t *five_planes = NULL;
1972 21 int remaining = avpkt->size;
1973 int decoded_height;
1974 21 stride = p->linesize[plane];
1975 21 dst = p->data[plane];
1976
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
21 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
1977 s->avctx->pix_fmt == AV_PIX_FMT_RGBA) {
1978 stride = stride * 5 / 4;
1979 five_planes =
1980 dst = av_malloc(stride * s->height);
1981 if (!dst)
1982 return AVERROR(ENOMEM);
1983 }
1984
2/2
✓ Branch 0 taken 684 times.
✓ Branch 1 taken 21 times.
705 for (i = 0; i < s->height; i += s->rps) {
1985
2/2
✓ Branch 0 taken 663 times.
✓ Branch 1 taken 21 times.
684 if (i)
1986 663 dst += s->rps * stride;
1987
2/2
✓ Branch 0 taken 682 times.
✓ Branch 1 taken 2 times.
684 if (s->stripsizesoff)
1988 682 ssize = ff_tget(&stripsizes, s->sstype, le);
1989 else
1990 2 ssize = s->stripsize;
1991
1992
2/2
✓ Branch 0 taken 682 times.
✓ Branch 1 taken 2 times.
684 if (s->strippos)
1993 682 soff = ff_tget(&stripdata, s->sot, le);
1994 else
1995 2 soff = s->stripoff;
1996
1997
3/6
✓ Branch 0 taken 684 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 684 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 684 times.
684 if (soff > avpkt->size || ssize > avpkt->size - soff || ssize > remaining) {
1998 av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
1999 av_freep(&five_planes);
2000 return AVERROR_INVALIDDATA;
2001 }
2002 684 remaining -= ssize;
2003
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 684 times.
684 if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i,
2004 684 FFMIN(s->rps, s->height - i))) < 0) {
2005 if (avctx->err_recognition & AV_EF_EXPLODE) {
2006 av_freep(&five_planes);
2007 return ret;
2008 }
2009 break;
2010 }
2011 }
2012 21 decoded_height = FFMIN(i, s->height);
2013
2014
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
21 if (s->predictor == 2) {
2015 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
2016 av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported");
2017 return AVERROR_PATCHWELCOME;
2018 }
2019 dst = five_planes ? five_planes : p->data[plane];
2020 soff = s->bpp >> 3;
2021 if (s->planar)
2022 soff = FFMAX(soff / s->bppcount, 1);
2023 ssize = s->width * soff;
2024 if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
2025 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
2026 s->avctx->pix_fmt == AV_PIX_FMT_GRAY16LE ||
2027 s->avctx->pix_fmt == AV_PIX_FMT_YA16LE ||
2028 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
2029 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
2030 for (i = 0; i < decoded_height; i++) {
2031 for (j = soff; j < ssize; j += 2)
2032 AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
2033 dst += stride;
2034 }
2035 } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
2036 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
2037 s->avctx->pix_fmt == AV_PIX_FMT_GRAY16BE ||
2038 s->avctx->pix_fmt == AV_PIX_FMT_YA16BE ||
2039 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
2040 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
2041 for (i = 0; i < decoded_height; i++) {
2042 for (j = soff; j < ssize; j += 2)
2043 AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
2044 dst += stride;
2045 }
2046 } else {
2047 for (i = 0; i < decoded_height; i++) {
2048 for (j = soff; j < ssize; j++)
2049 dst[j] += dst[j - soff];
2050 dst += stride;
2051 }
2052 }
2053 }
2054
2055
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 17 times.
21 if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) {
2056
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
4 int c = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255);
2057 4 dst = p->data[plane];
2058
2/2
✓ Branch 0 taken 12992 times.
✓ Branch 1 taken 4 times.
12996 for (i = 0; i < s->height; i++) {
2059
2/2
✓ Branch 0 taken 4157440 times.
✓ Branch 1 taken 12992 times.
4170432 for (j = 0; j < stride; j++)
2060 4157440 dst[j] = c - dst[j];
2061 12992 dst += stride;
2062 }
2063 }
2064
2065
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
21 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2066 (s->avctx->pix_fmt == AV_PIX_FMT_RGB0 || s->avctx->pix_fmt == AV_PIX_FMT_RGBA)) {
2067 int x = s->avctx->pix_fmt == AV_PIX_FMT_RGB0 ? 4 : 5;
2068 uint8_t *src = five_planes ? five_planes : p->data[plane];
2069 dst = p->data[plane];
2070 for (i = 0; i < s->height; i++) {
2071 for (j = 0; j < s->width; j++) {
2072 int k = 255 - src[x * j + 3];
2073 int r = (255 - src[x * j ]) * k;
2074 int g = (255 - src[x * j + 1]) * k;
2075 int b = (255 - src[x * j + 2]) * k;
2076 dst[4 * j ] = r * 257 >> 16;
2077 dst[4 * j + 1] = g * 257 >> 16;
2078 dst[4 * j + 2] = b * 257 >> 16;
2079 dst[4 * j + 3] = s->avctx->pix_fmt == AV_PIX_FMT_RGBA ? src[x * j + 4] : 255;
2080 }
2081 src += stride;
2082 dst += p->linesize[plane];
2083 }
2084 av_freep(&five_planes);
2085
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
21 } else if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2086 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) {
2087 dst = p->data[plane];
2088 for (i = 0; i < s->height; i++) {
2089 for (j = 0; j < s->width; j++) {
2090 uint64_t k = 65535 - AV_RB16(dst + 8 * j + 6);
2091 uint64_t r = (65535 - AV_RB16(dst + 8 * j )) * k;
2092 uint64_t g = (65535 - AV_RB16(dst + 8 * j + 2)) * k;
2093 uint64_t b = (65535 - AV_RB16(dst + 8 * j + 4)) * k;
2094 AV_WB16(dst + 8 * j , r * 65537 >> 32);
2095 AV_WB16(dst + 8 * j + 2, g * 65537 >> 32);
2096 AV_WB16(dst + 8 * j + 4, b * 65537 >> 32);
2097 AV_WB16(dst + 8 * j + 6, 65535);
2098 }
2099 dst += p->linesize[plane];
2100 }
2101 }
2102 }
2103
2104
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 21 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
21 if (s->planar && s->bppcount > 2) {
2105 FFSWAP(uint8_t*, p->data[0], p->data[2]);
2106 FFSWAP(int, p->linesize[0], p->linesize[2]);
2107 FFSWAP(uint8_t*, p->data[0], p->data[1]);
2108 FFSWAP(int, p->linesize[0], p->linesize[1]);
2109 }
2110
2111
1/8
✗ Branch 0 not taken.
✓ Branch 1 taken 21 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.
21 if (s->is_bayer && s->white_level && s->bpp == 16 && !is_dng) {
2112 uint16_t *dst = (uint16_t *)p->data[0];
2113 for (i = 0; i < s->height; i++) {
2114 for (j = 0; j < s->width; j++)
2115 dst[j] = FFMIN((dst[j] / (float)s->white_level) * 65535, 65535);
2116 dst += stride / 2;
2117 }
2118 }
2119
2120 21 *got_frame = 1;
2121
2122 21 return avpkt->size;
2123 }
2124
2125 9 static av_cold int tiff_init(AVCodecContext *avctx)
2126 {
2127 9 TiffContext *s = avctx->priv_data;
2128 const AVCodec *codec;
2129 int ret;
2130
2131 9 s->width = 0;
2132 9 s->height = 0;
2133 9 s->subsampling[0] =
2134 9 s->subsampling[1] = 1;
2135 9 s->avctx = avctx;
2136 9 ff_lzw_decode_open(&s->lzw);
2137
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 9 times.
9 if (!s->lzw)
2138 return AVERROR(ENOMEM);
2139 9 ff_ccitt_unpack_init();
2140
2141 /* Allocate JPEG frame */
2142 9 s->jpgframe = av_frame_alloc();
2143 9 s->jpkt = av_packet_alloc();
2144
2/4
✓ Branch 0 taken 9 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 9 times.
9 if (!s->jpgframe || !s->jpkt)
2145 return AVERROR(ENOMEM);
2146
2147 /* Prepare everything needed for JPEG decoding */
2148 9 codec = avcodec_find_decoder(AV_CODEC_ID_MJPEG);
2149
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 9 times.
9 if (!codec)
2150 return AVERROR_BUG;
2151 9 s->avctx_mjpeg = avcodec_alloc_context3(codec);
2152
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 9 times.
9 if (!s->avctx_mjpeg)
2153 return AVERROR(ENOMEM);
2154 9 s->avctx_mjpeg->flags = avctx->flags;
2155 9 s->avctx_mjpeg->flags2 = avctx->flags2;
2156 9 s->avctx_mjpeg->dct_algo = avctx->dct_algo;
2157 9 s->avctx_mjpeg->idct_algo = avctx->idct_algo;
2158 9 ret = avcodec_open2(s->avctx_mjpeg, codec, NULL);
2159
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 9 times.
9 if (ret < 0) {
2160 return ret;
2161 }
2162
2163 9 return 0;
2164 }
2165
2166 9 static av_cold int tiff_end(AVCodecContext *avctx)
2167 {
2168 9 TiffContext *const s = avctx->priv_data;
2169
2170 9 free_geotags(s);
2171
2172 9 ff_lzw_decode_close(&s->lzw);
2173 9 av_freep(&s->deinvert_buf);
2174 9 s->deinvert_buf_size = 0;
2175 9 av_freep(&s->yuv_line);
2176 9 s->yuv_line_size = 0;
2177 9 av_frame_free(&s->jpgframe);
2178 9 av_packet_free(&s->jpkt);
2179 9 avcodec_free_context(&s->avctx_mjpeg);
2180 9 return 0;
2181 }
2182
2183 #define OFFSET(x) offsetof(TiffContext, x)
2184 static const AVOption tiff_options[] = {
2185 { "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 },
2186 { "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 },
2187 { "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 },
2188 { NULL },
2189 };
2190
2191 static const AVClass tiff_decoder_class = {
2192 .class_name = "TIFF decoder",
2193 .item_name = av_default_item_name,
2194 .option = tiff_options,
2195 .version = LIBAVUTIL_VERSION_INT,
2196 };
2197
2198 const AVCodec ff_tiff_decoder = {
2199 .name = "tiff",
2200 .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
2201 .type = AVMEDIA_TYPE_VIDEO,
2202 .id = AV_CODEC_ID_TIFF,
2203 .priv_data_size = sizeof(TiffContext),
2204 .init = tiff_init,
2205 .close = tiff_end,
2206 .decode = decode_frame,
2207 .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
2208 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
2209 .priv_class = &tiff_decoder_class,
2210 };
2211