FFmpeg  4.3.6
tiff.c
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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;
58 
59  /* JPEG decoding for DNG */
60  AVCodecContext *avctx_mjpeg; // wrapper context for MJPEG
61  AVFrame *jpgframe; // decoded JPEG tile
62 
64  uint16_t get_page;
66 
68  int width, height;
69  unsigned int bpp, bppcount;
70  uint32_t palette[256];
72  int le;
75  int planar;
76  int subsampling[2];
77  int fax_opts;
78  int predictor;
80  uint32_t res[4];
82  unsigned last_tag;
83 
84  int is_bayer;
86  unsigned black_level;
87  unsigned white_level;
88  uint16_t dng_lut[65536];
89 
90  uint32_t sub_ifd;
91  uint16_t cur_page;
92 
93  int strips, rps, sstype;
94  int sot;
97 
98  /* Tile support */
99  int is_tiled;
102 
103  int is_jpeg;
104 
108  unsigned int yuv_line_size;
110  unsigned int fax_buffer_size;
111 
114 } TiffContext;
115 
117  if (s->tiff_type < tiff_type) // Prioritize higher-valued entries
118  s->tiff_type = tiff_type;
119 }
120 
121 static void free_geotags(TiffContext *const s)
122 {
123  int i;
124  for (i = 0; i < s->geotag_count; i++) {
125  if (s->geotags[i].val)
126  av_freep(&s->geotags[i].val);
127  }
128  av_freep(&s->geotags);
129  s->geotag_count = 0;
130 }
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(ff_tiff_##array##_name_type_map))\
135  return ff_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(ff_tiff_##array##_codes))\
183  return av_strdup(ff_tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET]);
184 
185  switch (key) {
187  RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
188  break;
190  RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
191  break;
195  RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
196  break;
199  RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
200  break;
202  RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
203  RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
204  break;
206  RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
207  RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
208  break;
210  RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
211  break;
213  RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
214  break;
217  if(ap) return ap;
218  break;
221  if(ap) return ap;
222  break;
224  RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
225  break;
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 static int add_metadata(int count, int type,
266  const char *name, const char *sep, TiffContext *s, AVFrame *frame)
267 {
268  switch(type) {
269  case TIFF_DOUBLE: return ff_tadd_doubles_metadata(count, name, sep, &s->gb, s->le, &frame->metadata);
270  case TIFF_SHORT : return ff_tadd_shorts_metadata(count, name, sep, &s->gb, s->le, 0, &frame->metadata);
271  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 static void av_always_inline dng_blit(TiffContext *s, uint8_t *dst, int dst_stride,
277  const uint8_t *src, int src_stride, int width, int height,
278  int is_single_comp, int is_u16);
279 
281  unsigned int bpp, uint8_t* dst,
282  int usePtr, const uint8_t *src,
283  uint8_t c, int width, int offset)
284 {
285  switch (bpp) {
286  case 1:
287  while (--width >= 0) {
288  dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
289  dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
290  dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
291  dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
292  dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
293  dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
294  dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
295  dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
296  }
297  break;
298  case 2:
299  while (--width >= 0) {
300  dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
301  dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
302  dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
303  dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
304  }
305  break;
306  case 4:
307  while (--width >= 0) {
308  dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
309  dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
310  }
311  break;
312  case 10:
313  case 12:
314  case 14: {
315  uint16_t *dst16 = (uint16_t *)dst;
316  int is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
317  uint8_t shift = is_dng ? 0 : 16 - bpp;
319 
320  init_get_bits8(&gb, src, width);
321  for (int i = 0; i < s->width; i++) {
322  dst16[i] = get_bits(&gb, bpp) << shift;
323  }
324  }
325  break;
326  default:
327  if (usePtr) {
328  memcpy(dst + offset, src, width);
329  } else {
330  memset(dst + offset, c, width);
331  }
332  }
333 }
334 
335 static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
336 {
337  int i;
338 
340  if (!s->deinvert_buf)
341  return AVERROR(ENOMEM);
342  for (i = 0; i < size; i++)
343  s->deinvert_buf[i] = ff_reverse[src[i]];
344 
345  return 0;
346 }
347 
348 static void unpack_gray(TiffContext *s, AVFrame *p,
349  const uint8_t *src, int lnum, int width, int bpp)
350 {
352  uint16_t *dst = (uint16_t *)(p->data[0] + lnum * p->linesize[0]);
353 
354  init_get_bits8(&gb, src, width);
355 
356  for (int i = 0; i < s->width; i++) {
357  dst[i] = get_bits(&gb, bpp);
358  }
359 }
360 
361 static void unpack_yuv(TiffContext *s, AVFrame *p,
362  const uint8_t *src, int lnum)
363 {
364  int i, j, k;
365  int w = (s->width - 1) / s->subsampling[0] + 1;
366  uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
367  uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
368  if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
369  for (i = 0; i < w; i++) {
370  for (j = 0; j < s->subsampling[1]; j++)
371  for (k = 0; k < s->subsampling[0]; k++)
372  p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
373  FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++;
374  *pu++ = *src++;
375  *pv++ = *src++;
376  }
377  }else{
378  for (i = 0; i < w; i++) {
379  for (j = 0; j < s->subsampling[1]; j++)
380  for (k = 0; k < s->subsampling[0]; k++)
381  p->data[0][(lnum + j) * p->linesize[0] +
382  i * s->subsampling[0] + k] = *src++;
383  *pu++ = *src++;
384  *pv++ = *src++;
385  }
386  }
387 }
388 
389 #if CONFIG_ZLIB
390 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
391  int size)
392 {
393  z_stream zstream = { 0 };
394  int zret;
395 
396  zstream.next_in = src;
397  zstream.avail_in = size;
398  zstream.next_out = dst;
399  zstream.avail_out = *len;
400  zret = inflateInit(&zstream);
401  if (zret != Z_OK) {
402  av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
403  return zret;
404  }
405  zret = inflate(&zstream, Z_SYNC_FLUSH);
406  inflateEnd(&zstream);
407  *len = zstream.total_out;
408  return zret == Z_STREAM_END ? Z_OK : zret;
409 }
410 
411 static int tiff_unpack_zlib(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
412  const uint8_t *src, int size, int width, int lines,
413  int strip_start, int is_yuv)
414 {
415  uint8_t *zbuf;
416  unsigned long outlen;
417  int ret, line;
418  outlen = width * lines;
419  zbuf = av_malloc(outlen);
420  if (!zbuf)
421  return AVERROR(ENOMEM);
422  if (s->fill_order) {
423  if ((ret = deinvert_buffer(s, src, size)) < 0) {
424  av_free(zbuf);
425  return ret;
426  }
427  src = s->deinvert_buf;
428  }
429  ret = tiff_uncompress(zbuf, &outlen, src, size);
430  if (ret != Z_OK) {
432  "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
433  (unsigned long)width * lines, ret);
434  av_free(zbuf);
435  return AVERROR_UNKNOWN;
436  }
437  src = zbuf;
438  for (line = 0; line < lines; line++) {
439  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
440  horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
441  } else {
442  memcpy(dst, src, width);
443  }
444  if (is_yuv) {
445  unpack_yuv(s, p, dst, strip_start + line);
446  line += s->subsampling[1] - 1;
447  }
448  dst += stride;
449  src += width;
450  }
451  av_free(zbuf);
452  return 0;
453 }
454 #endif
455 
456 #if CONFIG_LZMA
457 static int tiff_uncompress_lzma(uint8_t *dst, uint64_t *len, const uint8_t *src,
458  int size)
459 {
460  lzma_stream stream = LZMA_STREAM_INIT;
461  lzma_ret ret;
462 
463  stream.next_in = (uint8_t *)src;
464  stream.avail_in = size;
465  stream.next_out = dst;
466  stream.avail_out = *len;
467  ret = lzma_stream_decoder(&stream, UINT64_MAX, 0);
468  if (ret != LZMA_OK) {
469  av_log(NULL, AV_LOG_ERROR, "LZMA init error: %d\n", ret);
470  return ret;
471  }
472  ret = lzma_code(&stream, LZMA_RUN);
473  lzma_end(&stream);
474  *len = stream.total_out;
475  return ret == LZMA_STREAM_END ? LZMA_OK : ret;
476 }
477 
478 static int tiff_unpack_lzma(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
479  const uint8_t *src, int size, int width, int lines,
480  int strip_start, int is_yuv)
481 {
482  uint64_t outlen = width * (uint64_t)lines;
483  int ret, line;
484  uint8_t *buf = av_malloc(outlen);
485  if (!buf)
486  return AVERROR(ENOMEM);
487  if (s->fill_order) {
488  if ((ret = deinvert_buffer(s, src, size)) < 0) {
489  av_free(buf);
490  return ret;
491  }
492  src = s->deinvert_buf;
493  }
494  ret = tiff_uncompress_lzma(buf, &outlen, src, size);
495  if (ret != LZMA_OK) {
497  "Uncompressing failed (%"PRIu64" of %"PRIu64") with error %d\n", outlen,
498  (uint64_t)width * lines, ret);
499  av_free(buf);
500  return AVERROR_UNKNOWN;
501  }
502  src = buf;
503  for (line = 0; line < lines; line++) {
504  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
505  horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
506  } else {
507  memcpy(dst, src, width);
508  }
509  if (is_yuv) {
510  unpack_yuv(s, p, dst, strip_start + line);
511  line += s->subsampling[1] - 1;
512  }
513  dst += stride;
514  src += width;
515  }
516  av_free(buf);
517  return 0;
518 }
519 #endif
520 
521 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
522  const uint8_t *src, int size, int width, int lines)
523 {
524  int i, ret = 0;
525  int line;
526  uint8_t *src2;
527 
529  src2 = s->fax_buffer;
530 
531  if (!src2) {
533  "Error allocating temporary buffer\n");
534  return AVERROR(ENOMEM);
535  }
536 
537  if (!s->fill_order) {
538  memcpy(src2, src, size);
539  } else {
540  for (i = 0; i < size; i++)
541  src2[i] = ff_reverse[src[i]];
542  }
543  memset(src2 + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
544  ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
545  s->compr, s->fax_opts);
546  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
547  for (line = 0; line < lines; line++) {
548  horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
549  dst += stride;
550  }
551  return ret;
552 }
553 
555 
556 static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
557  const uint8_t *src, int size, int strip_start, int lines)
558 {
559  PutByteContext pb;
560  int c, line, pixels, code, ret;
561  const uint8_t *ssrc = src;
562  int width = ((s->width * s->bpp) + 7) >> 3;
564  int is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) &&
565  (desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
566  desc->nb_components >= 3;
567  int is_dng;
568 
569  if (s->planar)
570  width /= s->bppcount;
571 
572  if (size <= 0)
573  return AVERROR_INVALIDDATA;
574 
575  if (is_yuv) {
576  int bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
577  s->subsampling[0] * s->subsampling[1] + 7) >> 3;
578  av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row);
579  if (s->yuv_line == NULL) {
580  av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
581  return AVERROR(ENOMEM);
582  }
583  dst = s->yuv_line;
584  stride = 0;
585 
586  width = (s->width - 1) / s->subsampling[0] + 1;
587  width = width * s->subsampling[0] * s->subsampling[1] + 2*width;
588  av_assert0(width <= bytes_per_row);
589  av_assert0(s->bpp == 24);
590  }
591  if (s->is_bayer) {
592  av_assert0(width == (s->bpp * s->width + 7) >> 3);
593  }
594  av_assert0(!(s->is_bayer && is_yuv));
595  if (p->format == AV_PIX_FMT_GRAY12) {
597  if (s->yuv_line == NULL) {
598  av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
599  return AVERROR(ENOMEM);
600  }
601  dst = s->yuv_line;
602  stride = 0;
603  }
604 
605  if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
606 #if CONFIG_ZLIB
607  return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines,
608  strip_start, is_yuv);
609 #else
611  "zlib support not enabled, "
612  "deflate compression not supported\n");
613  return AVERROR(ENOSYS);
614 #endif
615  }
616  if (s->compr == TIFF_LZMA) {
617 #if CONFIG_LZMA
618  return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
619  strip_start, is_yuv);
620 #else
622  "LZMA support not enabled\n");
623  return AVERROR(ENOSYS);
624 #endif
625  }
626  if (s->compr == TIFF_LZW) {
627  if (s->fill_order) {
628  if ((ret = deinvert_buffer(s, src, size)) < 0)
629  return ret;
630  ssrc = src = s->deinvert_buf;
631  }
632  if (size > 1 && !src[0] && (src[1]&1)) {
633  av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
634  }
635  if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
636  av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
637  return ret;
638  }
639  for (line = 0; line < lines; line++) {
640  pixels = ff_lzw_decode(s->lzw, dst, width);
641  if (pixels < width) {
642  av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
643  pixels, width);
644  return AVERROR_INVALIDDATA;
645  }
646  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
647  horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
648  if (is_yuv) {
649  unpack_yuv(s, p, dst, strip_start + line);
650  line += s->subsampling[1] - 1;
651  } else if (p->format == AV_PIX_FMT_GRAY12) {
652  unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
653  }
654  dst += stride;
655  }
656  return 0;
657  }
658  if (s->compr == TIFF_CCITT_RLE ||
659  s->compr == TIFF_G3 ||
660  s->compr == TIFF_G4) {
661  if (is_yuv || p->format == AV_PIX_FMT_GRAY12)
662  return AVERROR_INVALIDDATA;
663 
664  return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
665  }
666 
667  bytestream2_init(&s->gb, src, size);
668  bytestream2_init_writer(&pb, dst, is_yuv ? s->yuv_line_size : (stride * lines));
669 
670  is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
671 
672  /* Decode JPEG-encoded DNGs with strips */
673  if (s->compr == TIFF_NEWJPEG && is_dng) {
674  if (s->strips > 1) {
675  av_log(s->avctx, AV_LOG_ERROR, "More than one DNG JPEG strips unsupported\n");
676  return AVERROR_PATCHWELCOME;
677  }
678  if (!s->is_bayer)
679  return AVERROR_PATCHWELCOME;
680  if ((ret = dng_decode_strip(s->avctx, p)) < 0)
681  return ret;
682  return 0;
683  }
684 
685  if (is_dng && stride == 0)
686  return AVERROR_INVALIDDATA;
687 
688  for (line = 0; line < lines; line++) {
689  if (src - ssrc > size) {
690  av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
691  return AVERROR_INVALIDDATA;
692  }
693 
694  if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb))
695  break;
696  bytestream2_seek_p(&pb, stride * line, SEEK_SET);
697  switch (s->compr) {
698  case TIFF_RAW:
699  if (ssrc + size - src < width)
700  return AVERROR_INVALIDDATA;
701 
702  if (!s->fill_order) {
703  horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 || s->is_bayer),
704  dst, 1, src, 0, width, 0);
705  } else {
706  int i;
707  for (i = 0; i < width; i++)
708  dst[i] = ff_reverse[src[i]];
709  }
710 
711  /* Color processing for DNG images with uncompressed strips (non-tiled) */
712  if (is_dng) {
713  int is_u16, pixel_size_bytes, pixel_size_bits, elements;
714 
715  is_u16 = (s->bpp / s->bppcount > 8);
716  pixel_size_bits = (is_u16 ? 16 : 8);
717  pixel_size_bytes = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
718 
719  elements = width / pixel_size_bytes * pixel_size_bits / s->bpp * s->bppcount; // need to account for [1, 16] bpp
720  av_assert0 (elements * pixel_size_bytes <= FFABS(stride));
721  dng_blit(s,
722  dst,
723  0, // no stride, only 1 line
724  dst,
725  0, // no stride, only 1 line
726  elements,
727  1,
728  0, // single-component variation is only preset in JPEG-encoded DNGs
729  is_u16);
730  }
731 
732  src += width;
733  break;
734  case TIFF_PACKBITS:
735  for (pixels = 0; pixels < width;) {
736  if (ssrc + size - src < 2) {
737  av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
738  return AVERROR_INVALIDDATA;
739  }
740  code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
741  if (code >= 0) {
742  code++;
743  if (pixels + code > width ||
744  ssrc + size - src < code) {
746  "Copy went out of bounds\n");
747  return AVERROR_INVALIDDATA;
748  }
750  dst, 1, src, 0, code, pixels);
751  src += code;
752  pixels += code;
753  } else if (code != -128) { // -127..-1
754  code = (-code) + 1;
755  if (pixels + code > width) {
757  "Run went out of bounds\n");
758  return AVERROR_INVALIDDATA;
759  }
760  c = *src++;
762  dst, 0, NULL, c, code, pixels);
763  pixels += code;
764  }
765  }
766  if (s->fill_order) {
767  int i;
768  for (i = 0; i < width; i++)
769  dst[i] = ff_reverse[dst[i]];
770  }
771  break;
772  }
773  if (is_yuv) {
774  unpack_yuv(s, p, dst, strip_start + line);
775  line += s->subsampling[1] - 1;
776  } else if (p->format == AV_PIX_FMT_GRAY12) {
777  unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
778  }
779  dst += stride;
780  }
781  return 0;
782 }
783 
784 /**
785  * Map stored raw sensor values into linear reference values (see: DNG Specification - Chapter 5)
786  */
787 static uint16_t av_always_inline dng_process_color16(uint16_t value,
788  const uint16_t *lut,
789  uint16_t black_level,
790  float scale_factor) {
791  float value_norm;
792 
793  // Lookup table lookup
794  if (lut)
795  value = lut[value];
796 
797  // Black level subtraction
798  value = av_clip_uint16_c((unsigned)value - black_level);
799 
800  // Color scaling
801  value_norm = (float)value * scale_factor;
802 
803  value = av_clip_uint16_c(value_norm * 65535);
804 
805  return value;
806 }
807 
808 static uint16_t av_always_inline dng_process_color8(uint16_t value,
809  const uint16_t *lut,
810  uint16_t black_level,
811  float scale_factor) {
812  return dng_process_color16(value, lut, black_level, scale_factor) >> 8;
813 }
814 
815 static void dng_blit(TiffContext *s, uint8_t *dst, int dst_stride,
816  const uint8_t *src, int src_stride,
817  int width, int height, int is_single_comp, int is_u16)
818 {
819  int line, col;
820  float scale_factor;
821 
822  scale_factor = 1.0f / (s->white_level - s->black_level);
823 
824  if (is_single_comp) {
825  if (!is_u16)
826  return; /* <= 8bpp unsupported */
827 
828  /* Image is double the width and half the height we need, each row comprises 2 rows of the output
829  (split vertically in the middle). */
830  for (line = 0; line < height / 2; line++) {
831  uint16_t *dst_u16 = (uint16_t *)dst;
832  uint16_t *src_u16 = (uint16_t *)src;
833 
834  /* Blit first half of input row row to initial row of output */
835  for (col = 0; col < width; col++)
836  *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level, scale_factor);
837 
838  /* Advance the destination pointer by a row (source pointer remains in the same place) */
839  dst += dst_stride * sizeof(uint16_t);
840  dst_u16 = (uint16_t *)dst;
841 
842  /* Blit second half of input row row to next row of output */
843  for (col = 0; col < width; col++)
844  *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level, scale_factor);
845 
846  dst += dst_stride * sizeof(uint16_t);
847  src += src_stride * sizeof(uint16_t);
848  }
849  } else {
850  /* Input and output image are the same size and the MJpeg decoder has done per-component
851  deinterleaving, so blitting here is straightforward. */
852  if (is_u16) {
853  for (line = 0; line < height; line++) {
854  uint16_t *dst_u16 = (uint16_t *)dst;
855  uint16_t *src_u16 = (uint16_t *)src;
856 
857  for (col = 0; col < width; col++)
858  *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level, scale_factor);
859 
860  dst += dst_stride * sizeof(uint16_t);
861  src += src_stride * sizeof(uint16_t);
862  }
863  } else {
864  for (line = 0; line < height; line++) {
865  uint8_t *dst_u8 = dst;
866  const uint8_t *src_u8 = src;
867 
868  for (col = 0; col < width; col++)
869  *dst_u8++ = dng_process_color8(*src_u8++, s->dng_lut, s->black_level, scale_factor);
870 
871  dst += dst_stride;
872  src += src_stride;
873  }
874  }
875  }
876 }
877 
878 static int dng_decode_jpeg(AVCodecContext *avctx, AVFrame *frame,
879  int tile_byte_count, int dst_x, int dst_y, int w, int h)
880 {
881  TiffContext *s = avctx->priv_data;
882  AVPacket jpkt;
883  uint8_t *dst_data, *src_data;
884  uint32_t dst_offset; /* offset from dst buffer in pixels */
885  int is_single_comp, is_u16, pixel_size;
886  int ret;
887 
888  if (tile_byte_count < 0 || tile_byte_count > bytestream2_get_bytes_left(&s->gb))
889  return AVERROR_INVALIDDATA;
890 
891  /* Prepare a packet and send to the MJPEG decoder */
892  av_init_packet(&jpkt);
893  jpkt.data = (uint8_t*)s->gb.buffer;
894  jpkt.size = tile_byte_count;
895 
896  if (s->is_bayer) {
897  MJpegDecodeContext *mjpegdecctx = s->avctx_mjpeg->priv_data;
898  /* We have to set this information here, there is no way to know if a given JPEG is a DNG-embedded
899  image or not from its own data (and we need that information when decoding it). */
900  mjpegdecctx->bayer = 1;
901  }
902 
903  ret = avcodec_send_packet(s->avctx_mjpeg, &jpkt);
904  if (ret < 0) {
905  av_log(avctx, AV_LOG_ERROR, "Error submitting a packet for decoding\n");
906  return ret;
907  }
908 
910  if (ret < 0) {
911  av_log(avctx, AV_LOG_ERROR, "JPEG decoding error: %s.\n", av_err2str(ret));
912 
913  /* Normally skip, error if explode */
914  if (avctx->err_recognition & AV_EF_EXPLODE)
915  return AVERROR_INVALIDDATA;
916  else
917  return 0;
918  }
919 
920  is_u16 = (s->bpp > 8);
921 
922  /* Copy the outputted tile's pixels from 'jpgframe' to 'frame' (final buffer) */
923 
924  if (s->jpgframe->width != s->avctx_mjpeg->width ||
925  s->jpgframe->height != s->avctx_mjpeg->height ||
926  s->jpgframe->format != s->avctx_mjpeg->pix_fmt)
927  return AVERROR_INVALIDDATA;
928 
929  /* See dng_blit for explanation */
930  if (s->avctx_mjpeg->width == w * 2 &&
931  s->avctx_mjpeg->height == h / 2 &&
933  is_single_comp = 1;
934  } else if (s->avctx_mjpeg->width == w &&
935  s->avctx_mjpeg->height == h &&
937  ) {
938  is_single_comp = 0;
939  } else
940  return AVERROR_INVALIDDATA;
941 
942  pixel_size = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
943 
944  if (is_single_comp && !is_u16) {
945  av_log(s->avctx, AV_LOG_ERROR, "DNGs with bpp <= 8 and 1 component are unsupported\n");
947  return AVERROR_PATCHWELCOME;
948  }
949 
950  dst_offset = dst_x + frame->linesize[0] * dst_y / pixel_size;
951  dst_data = frame->data[0] + dst_offset * pixel_size;
952  src_data = s->jpgframe->data[0];
953 
954  dng_blit(s,
955  dst_data,
956  frame->linesize[0] / pixel_size,
957  src_data,
958  s->jpgframe->linesize[0] / pixel_size,
959  w,
960  h,
961  is_single_comp,
962  is_u16);
963 
965 
966  return 0;
967 }
968 
969 static int dng_decode_tiles(AVCodecContext *avctx, AVFrame *frame, AVPacket *avpkt)
970 {
971  TiffContext *s = avctx->priv_data;
972  int tile_idx;
973  int tile_offset_offset, tile_offset;
974  int tile_byte_count_offset, tile_byte_count;
975  int tile_count_x, tile_count_y;
976  int tile_width, tile_length;
977  int has_width_leftover, has_height_leftover;
978  int tile_x = 0, tile_y = 0;
979  int pos_x = 0, pos_y = 0;
980  int ret;
981 
982  s->jpgframe->width = s->tile_width;
983  s->jpgframe->height = s->tile_length;
984 
985  s->avctx_mjpeg->width = s->tile_width;
986  s->avctx_mjpeg->height = s->tile_length;
987 
988  has_width_leftover = (s->width % s->tile_width != 0);
989  has_height_leftover = (s->height % s->tile_length != 0);
990 
991  /* Calculate tile counts (round up) */
992  tile_count_x = (s->width + s->tile_width - 1) / s->tile_width;
993  tile_count_y = (s->height + s->tile_length - 1) / s->tile_length;
994 
995  /* Iterate over the number of tiles */
996  for (tile_idx = 0; tile_idx < tile_count_x * tile_count_y; tile_idx++) {
997  tile_x = tile_idx % tile_count_x;
998  tile_y = tile_idx / tile_count_x;
999 
1000  if (has_width_leftover && tile_x == tile_count_x - 1) // If on the right-most tile
1001  tile_width = s->width % s->tile_width;
1002  else
1003  tile_width = s->tile_width;
1004 
1005  if (has_height_leftover && tile_y == tile_count_y - 1) // If on the bottom-most tile
1006  tile_length = s->height % s->tile_length;
1007  else
1008  tile_length = s->tile_length;
1009 
1010  /* Read tile offset */
1011  tile_offset_offset = s->tile_offsets_offset + tile_idx * sizeof(int);
1012  bytestream2_seek(&s->gb, tile_offset_offset, SEEK_SET);
1013  tile_offset = ff_tget_long(&s->gb, s->le);
1014 
1015  /* Read tile byte size */
1016  tile_byte_count_offset = s->tile_byte_counts_offset + tile_idx * sizeof(int);
1017  bytestream2_seek(&s->gb, tile_byte_count_offset, SEEK_SET);
1018  tile_byte_count = ff_tget_long(&s->gb, s->le);
1019 
1020  /* Seek to tile data */
1021  bytestream2_seek(&s->gb, tile_offset, SEEK_SET);
1022 
1023  /* Decode JPEG tile and copy it in the reference frame */
1024  ret = dng_decode_jpeg(avctx, frame, tile_byte_count, pos_x, pos_y, tile_width, tile_length);
1025 
1026  if (ret < 0)
1027  return ret;
1028 
1029  /* Advance current positions */
1030  pos_x += tile_width;
1031  if (tile_x == tile_count_x - 1) { // If on the right edge
1032  pos_x = 0;
1033  pos_y += tile_length;
1034  }
1035  }
1036 
1037  /* Frame is ready to be output */
1038  frame->pict_type = AV_PICTURE_TYPE_I;
1039  frame->key_frame = 1;
1040 
1041  return avpkt->size;
1042 }
1043 
1044 static int dng_decode_strip(AVCodecContext *avctx, AVFrame *frame)
1045 {
1046  TiffContext *s = avctx->priv_data;
1047 
1048  s->jpgframe->width = s->width;
1049  s->jpgframe->height = s->height;
1050 
1051  s->avctx_mjpeg->width = s->width;
1052  s->avctx_mjpeg->height = s->height;
1053 
1054  return dng_decode_jpeg(avctx, frame, s->stripsize, 0, 0, s->width, s->height);
1055 }
1056 
1057 static int init_image(TiffContext *s, ThreadFrame *frame)
1058 {
1059  int ret;
1060  int create_gray_palette = 0;
1061 
1062  // make sure there is no aliasing in the following switch
1063  if (s->bpp >= 100 || s->bppcount >= 10) {
1065  "Unsupported image parameters: bpp=%d, bppcount=%d\n",
1066  s->bpp, s->bppcount);
1067  return AVERROR_INVALIDDATA;
1068  }
1069 
1070  switch (s->planar * 1000 + s->bpp * 10 + s->bppcount + s->is_bayer * 10000) {
1071  case 11:
1072  if (!s->palette_is_set) {
1074  break;
1075  }
1076  case 21:
1077  case 41:
1079  if (!s->palette_is_set) {
1080  create_gray_palette = 1;
1081  }
1082  break;
1083  case 81:
1085  break;
1086  case 121:
1088  break;
1089  case 10081:
1090  switch (AV_RL32(s->pattern)) {
1091  case 0x02010100:
1093  break;
1094  case 0x00010102:
1096  break;
1097  case 0x01000201:
1099  break;
1100  case 0x01020001:
1102  break;
1103  default:
1104  av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1105  AV_RL32(s->pattern));
1106  return AVERROR_PATCHWELCOME;
1107  }
1108  break;
1109  case 10101:
1110  case 10121:
1111  case 10141:
1112  case 10161:
1113  switch (AV_RL32(s->pattern)) {
1114  case 0x02010100:
1116  break;
1117  case 0x00010102:
1119  break;
1120  case 0x01000201:
1122  break;
1123  case 0x01020001:
1125  break;
1126  default:
1127  av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1128  AV_RL32(s->pattern));
1129  return AVERROR_PATCHWELCOME;
1130  }
1131  break;
1132  case 243:
1133  if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1134  if (s->subsampling[0] == 1 && s->subsampling[1] == 1) {
1136  } else if (s->subsampling[0] == 2 && s->subsampling[1] == 1) {
1138  } else if (s->subsampling[0] == 4 && s->subsampling[1] == 1) {
1140  } else if (s->subsampling[0] == 1 && s->subsampling[1] == 2) {
1142  } else if (s->subsampling[0] == 2 && s->subsampling[1] == 2) {
1144  } else if (s->subsampling[0] == 4 && s->subsampling[1] == 4) {
1146  } else {
1147  av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr subsampling\n");
1148  return AVERROR_PATCHWELCOME;
1149  }
1150  } else
1152  break;
1153  case 161:
1155  break;
1156  case 162:
1158  break;
1159  case 322:
1161  break;
1162  case 324:
1164  break;
1165  case 405:
1168  else {
1170  "bpp=40 without PHOTOMETRIC_SEPARATED is unsupported\n");
1171  return AVERROR_PATCHWELCOME;
1172  }
1173  break;
1174  case 483:
1176  break;
1177  case 644:
1179  break;
1180  case 1243:
1182  break;
1183  case 1324:
1185  break;
1186  case 1483:
1188  break;
1189  case 1644:
1191  break;
1192  default:
1194  "This format is not supported (bpp=%d, bppcount=%d)\n",
1195  s->bpp, s->bppcount);
1196  return AVERROR_INVALIDDATA;
1197  }
1198 
1199  if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1201  if((desc->flags & AV_PIX_FMT_FLAG_RGB) ||
1202  !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) ||
1203  desc->nb_components < 3) {
1204  av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr variant\n");
1205  return AVERROR_INVALIDDATA;
1206  }
1207  }
1208 
1209  if (s->width != s->avctx->width || s->height != s->avctx->height) {
1210  ret = ff_set_dimensions(s->avctx, s->width, s->height);
1211  if (ret < 0)
1212  return ret;
1213  }
1214  if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
1215  return ret;
1216  if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
1217  if (!create_gray_palette)
1218  memcpy(frame->f->data[1], s->palette, sizeof(s->palette));
1219  else {
1220  /* make default grayscale pal */
1221  int i;
1222  uint32_t *pal = (uint32_t *)frame->f->data[1];
1223  for (i = 0; i < 1<<s->bpp; i++)
1224  pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
1225  }
1226  }
1227  return 0;
1228 }
1229 
1230 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
1231 {
1232  int offset = tag == TIFF_YRES ? 2 : 0;
1233  s->res[offset++] = num;
1234  s->res[offset] = den;
1235  if (s->res[0] && s->res[1] && s->res[2] && s->res[3]) {
1236  uint64_t num = s->res[2] * (uint64_t)s->res[1];
1237  uint64_t den = s->res[0] * (uint64_t)s->res[3];
1238  if (num > INT64_MAX || den > INT64_MAX) {
1239  num = num >> 1;
1240  den = den >> 1;
1241  }
1243  num, den, INT32_MAX);
1244  if (!s->avctx->sample_aspect_ratio.den)
1245  s->avctx->sample_aspect_ratio = (AVRational) {0, 1};
1246  }
1247 }
1248 
1249 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
1250 {
1251  AVFrameSideData *sd;
1252  GetByteContext gb_temp;
1253  unsigned tag, type, count, off, value = 0, value2 = 1; // value2 is a denominator so init. to 1
1254  int i, start;
1255  int pos;
1256  int ret;
1257  double *dp;
1258 
1259  ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
1260  if (ret < 0) {
1261  goto end;
1262  }
1263  if (tag <= s->last_tag)
1264  return AVERROR_INVALIDDATA;
1265 
1266  // We ignore TIFF_STRIP_SIZE as it is sometimes in the logic but wrong order around TIFF_STRIP_OFFS
1267  if (tag != TIFF_STRIP_SIZE)
1268  s->last_tag = tag;
1269 
1270  off = bytestream2_tell(&s->gb);
1271  if (count == 1) {
1272  switch (type) {
1273  case TIFF_BYTE:
1274  case TIFF_SHORT:
1275  case TIFF_LONG:
1276  value = ff_tget(&s->gb, type, s->le);
1277  break;
1278  case TIFF_RATIONAL:
1279  value = ff_tget(&s->gb, TIFF_LONG, s->le);
1280  value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
1281  if (!value2) {
1282  av_log(s->avctx, AV_LOG_ERROR, "Invalid denominator in rational\n");
1283  return AVERROR_INVALIDDATA;
1284  }
1285 
1286  break;
1287  case TIFF_STRING:
1288  if (count <= 4) {
1289  break;
1290  }
1291  default:
1292  value = UINT_MAX;
1293  }
1294  }
1295 
1296  switch (tag) {
1297  case TIFF_SUBFILE:
1298  s->is_thumbnail = (value != 0);
1299  break;
1300  case TIFF_WIDTH:
1301  s->width = value;
1302  break;
1303  case TIFF_HEIGHT:
1304  s->height = value;
1305  break;
1306  case TIFF_BPP:
1307  if (count > 5 || count <= 0) {
1309  "This format is not supported (bpp=%d, %d components)\n",
1310  value, count);
1311  return AVERROR_INVALIDDATA;
1312  }
1313  s->bppcount = count;
1314  if (count == 1)
1315  s->bpp = value;
1316  else {
1317  switch (type) {
1318  case TIFF_BYTE:
1319  case TIFF_SHORT:
1320  case TIFF_LONG:
1321  s->bpp = 0;
1322  if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
1323  return AVERROR_INVALIDDATA;
1324  for (i = 0; i < count; i++)
1325  s->bpp += ff_tget(&s->gb, type, s->le);
1326  break;
1327  default:
1328  s->bpp = -1;
1329  }
1330  }
1331  break;
1333  if (count != 1) {
1335  "Samples per pixel requires a single value, many provided\n");
1336  return AVERROR_INVALIDDATA;
1337  }
1338  if (value > 5 || value <= 0) {
1340  "Invalid samples per pixel %d\n", value);
1341  return AVERROR_INVALIDDATA;
1342  }
1343  if (s->bppcount == 1)
1344  s->bpp *= value;
1345  s->bppcount = value;
1346  break;
1347  case TIFF_COMPR:
1348  s->compr = value;
1349  av_log(s->avctx, AV_LOG_DEBUG, "compression: %d\n", s->compr);
1350  s->predictor = 0;
1351  switch (s->compr) {
1352  case TIFF_RAW:
1353  case TIFF_PACKBITS:
1354  case TIFF_LZW:
1355  case TIFF_CCITT_RLE:
1356  break;
1357  case TIFF_G3:
1358  case TIFF_G4:
1359  s->fax_opts = 0;
1360  break;
1361  case TIFF_DEFLATE:
1362  case TIFF_ADOBE_DEFLATE:
1363 #if CONFIG_ZLIB
1364  break;
1365 #else
1366  av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
1367  return AVERROR(ENOSYS);
1368 #endif
1369  case TIFF_JPEG:
1370  case TIFF_NEWJPEG:
1371  s->is_jpeg = 1;
1372  break;
1373  case TIFF_LZMA:
1374 #if CONFIG_LZMA
1375  break;
1376 #else
1377  av_log(s->avctx, AV_LOG_ERROR, "LZMA not compiled in\n");
1378  return AVERROR(ENOSYS);
1379 #endif
1380  default:
1381  av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
1382  s->compr);
1383  return AVERROR_INVALIDDATA;
1384  }
1385  break;
1386  case TIFF_ROWSPERSTRIP:
1387  if (!value || (type == TIFF_LONG && value == UINT_MAX))
1388  value = s->height;
1389  s->rps = FFMIN(value, s->height);
1390  break;
1391  case TIFF_STRIP_OFFS:
1392  if (count == 1) {
1393  if (value > INT_MAX) {
1395  "strippos %u too large\n", value);
1396  return AVERROR_INVALIDDATA;
1397  }
1398  s->strippos = 0;
1399  s->stripoff = value;
1400  } else
1401  s->strippos = off;
1402  s->strips = count;
1403  if (s->strips == 1)
1404  s->rps = s->height;
1405  s->sot = type;
1406  break;
1407  case TIFF_STRIP_SIZE:
1408  if (count == 1) {
1409  if (value > INT_MAX) {
1411  "stripsize %u too large\n", value);
1412  return AVERROR_INVALIDDATA;
1413  }
1414  s->stripsizesoff = 0;
1415  s->stripsize = value;
1416  s->strips = 1;
1417  } else {
1418  s->stripsizesoff = off;
1419  }
1420  s->strips = count;
1421  s->sstype = type;
1422  break;
1423  case TIFF_XRES:
1424  case TIFF_YRES:
1425  set_sar(s, tag, value, value2);
1426  break;
1427  case TIFF_TILE_OFFSETS:
1428  s->tile_offsets_offset = off;
1429  s->is_tiled = 1;
1430  break;
1431  case TIFF_TILE_BYTE_COUNTS:
1432  s->tile_byte_counts_offset = off;
1433  break;
1434  case TIFF_TILE_LENGTH:
1435  s->tile_length = value;
1436  break;
1437  case TIFF_TILE_WIDTH:
1438  s->tile_width = value;
1439  break;
1440  case TIFF_PREDICTOR:
1441  s->predictor = value;
1442  break;
1443  case TIFF_SUB_IFDS:
1444  if (count == 1)
1445  s->sub_ifd = value;
1446  else if (count > 1)
1447  s->sub_ifd = ff_tget(&s->gb, TIFF_LONG, s->le); /** Only get the first SubIFD */
1448  break;
1450  if (count > FF_ARRAY_ELEMS(s->dng_lut))
1451  return AVERROR_INVALIDDATA;
1452  for (int i = 0; i < count; i++)
1453  s->dng_lut[i] = ff_tget(&s->gb, type, s->le);
1454  break;
1455  case DNG_BLACK_LEVEL:
1456  if (count > 1) { /* Use the first value in the pattern (assume they're all the same) */
1457  if (type == TIFF_RATIONAL) {
1458  value = ff_tget(&s->gb, TIFF_LONG, s->le);
1459  value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
1460  if (!value2) {
1461  av_log(s->avctx, AV_LOG_ERROR, "Invalid black level denominator\n");
1462  return AVERROR_INVALIDDATA;
1463  }
1464 
1465  s->black_level = value / value2;
1466  } else
1467  s->black_level = ff_tget(&s->gb, type, s->le);
1468  av_log(s->avctx, AV_LOG_WARNING, "Assuming black level pattern values are identical\n");
1469  } else {
1470  s->black_level = value / value2;
1471  }
1472  break;
1473  case DNG_WHITE_LEVEL:
1474  s->white_level = value;
1475  break;
1476  case TIFF_CFA_PATTERN_DIM:
1477  if (count != 2 || (ff_tget(&s->gb, type, s->le) != 2 &&
1478  ff_tget(&s->gb, type, s->le) != 2)) {
1479  av_log(s->avctx, AV_LOG_ERROR, "CFA Pattern dimensions are not 2x2\n");
1480  return AVERROR_INVALIDDATA;
1481  }
1482  break;
1483  case TIFF_CFA_PATTERN:
1484  s->is_bayer = 1;
1485  s->pattern[0] = ff_tget(&s->gb, type, s->le);
1486  s->pattern[1] = ff_tget(&s->gb, type, s->le);
1487  s->pattern[2] = ff_tget(&s->gb, type, s->le);
1488  s->pattern[3] = ff_tget(&s->gb, type, s->le);
1489  break;
1490  case TIFF_PHOTOMETRIC:
1491  switch (value) {
1494  case TIFF_PHOTOMETRIC_RGB:
1498  case TIFF_PHOTOMETRIC_CFA:
1499  case TIFF_PHOTOMETRIC_LINEAR_RAW: // Used by DNG images
1500  s->photometric = value;
1501  break;
1509  "PhotometricInterpretation 0x%04X",
1510  value);
1511  return AVERROR_PATCHWELCOME;
1512  default:
1513  av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
1514  "unknown\n", value);
1515  return AVERROR_INVALIDDATA;
1516  }
1517  break;
1518  case TIFF_FILL_ORDER:
1519  if (value < 1 || value > 2) {
1521  "Unknown FillOrder value %d, trying default one\n", value);
1522  value = 1;
1523  }
1524  s->fill_order = value - 1;
1525  break;
1526  case TIFF_PAL: {
1527  GetByteContext pal_gb[3];
1528  off = type_sizes[type];
1529  if (count / 3 > 256 ||
1530  bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
1531  return AVERROR_INVALIDDATA;
1532 
1533  pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
1534  bytestream2_skip(&pal_gb[1], count / 3 * off);
1535  bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
1536 
1537  off = (type_sizes[type] - 1) << 3;
1538  if (off > 31U) {
1539  av_log(s->avctx, AV_LOG_ERROR, "palette shift %d is out of range\n", off);
1540  return AVERROR_INVALIDDATA;
1541  }
1542 
1543  for (i = 0; i < count / 3; i++) {
1544  uint32_t p = 0xFF000000;
1545  p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
1546  p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
1547  p |= ff_tget(&pal_gb[2], type, s->le) >> off;
1548  s->palette[i] = p;
1549  }
1550  s->palette_is_set = 1;
1551  break;
1552  }
1553  case TIFF_PLANAR:
1554  s->planar = value == 2;
1555  break;
1557  if (count != 2) {
1558  av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n");
1559  return AVERROR_INVALIDDATA;
1560  }
1561  for (i = 0; i < count; i++) {
1562  s->subsampling[i] = ff_tget(&s->gb, type, s->le);
1563  if (s->subsampling[i] <= 0) {
1564  av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]);
1565  s->subsampling[i] = 1;
1566  return AVERROR_INVALIDDATA;
1567  }
1568  }
1569  break;
1570  case TIFF_T4OPTIONS:
1571  if (s->compr == TIFF_G3)
1572  s->fax_opts = value;
1573  break;
1574  case TIFF_T6OPTIONS:
1575  if (s->compr == TIFF_G4)
1576  s->fax_opts = value;
1577  break;
1578 #define ADD_METADATA(count, name, sep)\
1579  if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
1580  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
1581  goto end;\
1582  }
1584  ADD_METADATA(count, "ModelPixelScaleTag", NULL);
1585  break;
1587  ADD_METADATA(count, "ModelTransformationTag", NULL);
1588  break;
1589  case TIFF_MODEL_TIEPOINT:
1590  ADD_METADATA(count, "ModelTiepointTag", NULL);
1591  break;
1593  if (s->geotag_count) {
1594  avpriv_request_sample(s->avctx, "Multiple geo key directories\n");
1595  return AVERROR_INVALIDDATA;
1596  }
1597  ADD_METADATA(1, "GeoTIFF_Version", NULL);
1598  ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
1599  s->geotag_count = ff_tget_short(&s->gb, s->le);
1600  if (s->geotag_count > count / 4 - 1) {
1601  s->geotag_count = count / 4 - 1;
1602  av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
1603  }
1604  if ( bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4
1605  || s->geotag_count == 0) {
1606  s->geotag_count = 0;
1607  return -1;
1608  }
1609  s->geotags = av_mallocz_array(s->geotag_count, sizeof(TiffGeoTag));
1610  if (!s->geotags) {
1611  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1612  s->geotag_count = 0;
1613  goto end;
1614  }
1615  for (i = 0; i < s->geotag_count; i++) {
1616  s->geotags[i].key = ff_tget_short(&s->gb, s->le);
1617  s->geotags[i].type = ff_tget_short(&s->gb, s->le);
1618  s->geotags[i].count = ff_tget_short(&s->gb, s->le);
1619 
1620  if (!s->geotags[i].type)
1621  s->geotags[i].val = get_geokey_val(s->geotags[i].key, ff_tget_short(&s->gb, s->le));
1622  else
1623  s->geotags[i].offset = ff_tget_short(&s->gb, s->le);
1624  }
1625  break;
1627  if (count >= INT_MAX / sizeof(int64_t))
1628  return AVERROR_INVALIDDATA;
1629  if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
1630  return AVERROR_INVALIDDATA;
1631  dp = av_malloc_array(count, sizeof(double));
1632  if (!dp) {
1633  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1634  goto end;
1635  }
1636  for (i = 0; i < count; i++)
1637  dp[i] = ff_tget_double(&s->gb, s->le);
1638  for (i = 0; i < s->geotag_count; i++) {
1639  if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
1640  if (s->geotags[i].count == 0
1641  || s->geotags[i].offset + s->geotags[i].count > count) {
1642  av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1643  } else if (s->geotags[i].val) {
1644  av_log(s->avctx, AV_LOG_WARNING, "Duplicate GeoTIFF key %d\n", s->geotags[i].key);
1645  } else {
1646  char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
1647  if (!ap) {
1648  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1649  av_freep(&dp);
1650  return AVERROR(ENOMEM);
1651  }
1652  s->geotags[i].val = ap;
1653  }
1654  }
1655  }
1656  av_freep(&dp);
1657  break;
1658  case TIFF_GEO_ASCII_PARAMS:
1659  pos = bytestream2_tell(&s->gb);
1660  for (i = 0; i < s->geotag_count; i++) {
1661  if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
1662  if (s->geotags[i].count == 0
1663  || s->geotags[i].offset + s->geotags[i].count > count) {
1664  av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1665  } else {
1666  char *ap;
1667 
1668  bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
1669  if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
1670  return AVERROR_INVALIDDATA;
1671  if (s->geotags[i].val)
1672  return AVERROR_INVALIDDATA;
1673  ap = av_malloc(s->geotags[i].count);
1674  if (!ap) {
1675  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1676  return AVERROR(ENOMEM);
1677  }
1678  bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
1679  ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
1680  s->geotags[i].val = ap;
1681  }
1682  }
1683  }
1684  break;
1685  case TIFF_ICC_PROFILE:
1686  if (type != TIFF_UNDEFINED)
1687  return AVERROR_INVALIDDATA;
1688 
1689  gb_temp = s->gb;
1690  bytestream2_seek(&gb_temp, SEEK_SET, off);
1691 
1692  if (bytestream2_get_bytes_left(&gb_temp) < count)
1693  return AVERROR_INVALIDDATA;
1694 
1696  if (!sd)
1697  return AVERROR(ENOMEM);
1698 
1699  bytestream2_get_bufferu(&gb_temp, sd->data, count);
1700  break;
1701  case TIFF_ARTIST:
1702  ADD_METADATA(count, "artist", NULL);
1703  break;
1704  case TIFF_COPYRIGHT:
1705  ADD_METADATA(count, "copyright", NULL);
1706  break;
1707  case TIFF_DATE:
1708  ADD_METADATA(count, "date", NULL);
1709  break;
1710  case TIFF_DOCUMENT_NAME:
1711  ADD_METADATA(count, "document_name", NULL);
1712  break;
1713  case TIFF_HOST_COMPUTER:
1714  ADD_METADATA(count, "computer", NULL);
1715  break;
1717  ADD_METADATA(count, "description", NULL);
1718  break;
1719  case TIFF_MAKE:
1720  ADD_METADATA(count, "make", NULL);
1721  break;
1722  case TIFF_MODEL:
1723  ADD_METADATA(count, "model", NULL);
1724  break;
1725  case TIFF_PAGE_NAME:
1726  ADD_METADATA(count, "page_name", NULL);
1727  break;
1728  case TIFF_PAGE_NUMBER:
1729  ADD_METADATA(count, "page_number", " / ");
1730  // need to seek back to re-read the page number
1731  bytestream2_seek(&s->gb, -count * sizeof(uint16_t), SEEK_CUR);
1732  // read the page number
1733  s->cur_page = ff_tget(&s->gb, TIFF_SHORT, s->le);
1734  // get back to where we were before the previous seek
1735  bytestream2_seek(&s->gb, count * sizeof(uint16_t) - sizeof(uint16_t), SEEK_CUR);
1736  break;
1737  case TIFF_SOFTWARE_NAME:
1738  ADD_METADATA(count, "software", NULL);
1739  break;
1740  case DNG_VERSION:
1741  if (count == 4) {
1742  unsigned int ver[4];
1743  ver[0] = ff_tget(&s->gb, type, s->le);
1744  ver[1] = ff_tget(&s->gb, type, s->le);
1745  ver[2] = ff_tget(&s->gb, type, s->le);
1746  ver[3] = ff_tget(&s->gb, type, s->le);
1747 
1748  av_log(s->avctx, AV_LOG_DEBUG, "DNG file, version %u.%u.%u.%u\n",
1749  ver[0], ver[1], ver[2], ver[3]);
1750 
1752  }
1753  break;
1754  case CINEMADNG_TIME_CODES:
1755  case CINEMADNG_FRAME_RATE:
1756  case CINEMADNG_T_STOP:
1757  case CINEMADNG_REEL_NAME:
1760  break;
1761  default:
1762  if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1764  "Unknown or unsupported tag %d/0x%0X\n",
1765  tag, tag);
1766  return AVERROR_INVALIDDATA;
1767  }
1768  }
1769 end:
1770  if (s->bpp > 64U) {
1772  "This format is not supported (bpp=%d, %d components)\n",
1773  s->bpp, count);
1774  s->bpp = 0;
1775  return AVERROR_INVALIDDATA;
1776  }
1777  bytestream2_seek(&s->gb, start, SEEK_SET);
1778  return 0;
1779 }
1780 
1781 static int decode_frame(AVCodecContext *avctx,
1782  void *data, int *got_frame, AVPacket *avpkt)
1783 {
1784  TiffContext *const s = avctx->priv_data;
1785  AVFrame *const p = data;
1786  ThreadFrame frame = { .f = data };
1787  unsigned off, last_off = 0;
1788  int le, ret, plane, planes;
1789  int i, j, entries, stride;
1790  unsigned soff, ssize;
1791  uint8_t *dst;
1792  GetByteContext stripsizes;
1793  GetByteContext stripdata;
1794  int retry_for_subifd, retry_for_page;
1795  int is_dng;
1796  int has_tile_bits, has_strip_bits;
1797 
1798  bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1799 
1800  // parse image header
1801  if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
1802  av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
1803  return ret;
1804  } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1805  av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1806  return AVERROR_INVALIDDATA;
1807  }
1808  s->le = le;
1809  // TIFF_BPP is not a required tag and defaults to 1
1810 
1812 again:
1813  s->is_thumbnail = 0;
1814  s->bppcount = s->bpp = 1;
1816  s->compr = TIFF_RAW;
1817  s->fill_order = 0;
1818  s->white_level = 0;
1819  s->is_bayer = 0;
1820  s->is_tiled = 0;
1821  s->is_jpeg = 0;
1822  s->cur_page = 0;
1823  s->last_tag = 0;
1824 
1825  for (i = 0; i < 65536; i++)
1826  s->dng_lut[i] = i;
1827 
1828  free_geotags(s);
1829 
1830  // Reset these offsets so we can tell if they were set this frame
1831  s->stripsizesoff = s->strippos = 0;
1832  /* parse image file directory */
1833  bytestream2_seek(&s->gb, off, SEEK_SET);
1834  entries = ff_tget_short(&s->gb, le);
1835  if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1836  return AVERROR_INVALIDDATA;
1837  for (i = 0; i < entries; i++) {
1838  if ((ret = tiff_decode_tag(s, p)) < 0)
1839  return ret;
1840  }
1841 
1842  if (s->get_thumbnail && !s->is_thumbnail) {
1843  av_log(avctx, AV_LOG_INFO, "No embedded thumbnail present\n");
1844  return AVERROR_EOF;
1845  }
1846 
1847  /** whether we should process this IFD's SubIFD */
1848  retry_for_subifd = s->sub_ifd && (s->get_subimage || (!s->get_thumbnail && s->is_thumbnail));
1849  /** whether we should process this multi-page IFD's next page */
1850  retry_for_page = s->get_page && s->cur_page + 1 < s->get_page; // get_page is 1-indexed
1851 
1852  if (retry_for_page) {
1853  // set offset to the next IFD
1854  off = ff_tget_long(&s->gb, le);
1855  } else if (retry_for_subifd) {
1856  // set offset to the SubIFD
1857  off = s->sub_ifd;
1858  }
1859 
1860  if (retry_for_subifd || retry_for_page) {
1861  if (!off) {
1862  av_log(avctx, AV_LOG_ERROR, "Requested entry not found\n");
1863  return AVERROR_INVALIDDATA;
1864  }
1865  if (off <= last_off) {
1866  avpriv_request_sample(s->avctx, "non increasing IFD offset\n");
1867  return AVERROR_INVALIDDATA;
1868  }
1869  last_off = off;
1870  if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1871  av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1872  return AVERROR_INVALIDDATA;
1873  }
1874  s->sub_ifd = 0;
1875  goto again;
1876  }
1877 
1878  /* At this point we've decided on which (Sub)IFD to process */
1879 
1880  is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
1881 
1882  for (i = 0; i<s->geotag_count; i++) {
1883  const char *keyname = get_geokey_name(s->geotags[i].key);
1884  if (!keyname) {
1885  av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
1886  continue;
1887  }
1888  if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
1889  av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
1890  continue;
1891  }
1892  ret = av_dict_set(&p->metadata, keyname, s->geotags[i].val, 0);
1893  if (ret<0) {
1894  av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
1895  return ret;
1896  }
1897  }
1898 
1899  if (is_dng) {
1900  int bps;
1901 
1902  if (s->bpp % s->bppcount)
1903  return AVERROR_INVALIDDATA;
1904  bps = s->bpp / s->bppcount;
1905  if (bps < 8 || bps > 32)
1906  return AVERROR_INVALIDDATA;
1907 
1908  if (s->white_level == 0)
1909  s->white_level = (1LL << bps) - 1; /* Default value as per the spec */
1910 
1911  if (s->white_level <= s->black_level) {
1912  av_log(avctx, AV_LOG_ERROR, "BlackLevel (%"PRId32") must be less than WhiteLevel (%"PRId32")\n",
1913  s->black_level, s->white_level);
1914  return AVERROR_INVALIDDATA;
1915  }
1916 
1917  if (s->planar)
1918  return AVERROR_PATCHWELCOME;
1919  }
1920 
1921  if (!s->is_tiled && !s->strippos && !s->stripoff) {
1922  av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
1923  return AVERROR_INVALIDDATA;
1924  }
1925 
1926  has_tile_bits = s->is_tiled || s->tile_byte_counts_offset || s->tile_offsets_offset || s->tile_width || s->tile_length;
1927  has_strip_bits = s->strippos || s->strips || s->stripoff || s->rps || s->sot || s->sstype || s->stripsize || s->stripsizesoff;
1928 
1929  if (has_tile_bits && has_strip_bits) {
1930  av_log(avctx, AV_LOG_ERROR, "Tiled TIFF is not allowed to strip\n");
1931  return AVERROR_INVALIDDATA;
1932  }
1933 
1934  /* now we have the data and may start decoding */
1935  if ((ret = init_image(s, &frame)) < 0)
1936  return ret;
1937 
1938  if (!s->is_tiled) {
1939  if (s->strips == 1 && !s->stripsize) {
1940  av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
1941  s->stripsize = avpkt->size - s->stripoff;
1942  }
1943 
1944  if (s->stripsizesoff) {
1945  if (s->stripsizesoff >= (unsigned)avpkt->size)
1946  return AVERROR_INVALIDDATA;
1947  bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
1948  avpkt->size - s->stripsizesoff);
1949  }
1950  if (s->strippos) {
1951  if (s->strippos >= (unsigned)avpkt->size)
1952  return AVERROR_INVALIDDATA;
1953  bytestream2_init(&stripdata, avpkt->data + s->strippos,
1954  avpkt->size - s->strippos);
1955  }
1956 
1957  if (s->rps <= 0 || s->rps % s->subsampling[1]) {
1958  av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1959  return AVERROR_INVALIDDATA;
1960  }
1961  }
1962 
1966  } else if (s->photometric == TIFF_PHOTOMETRIC_BLACK_IS_ZERO) {
1968  }
1969 
1970  /* Handle DNG images with JPEG-compressed tiles */
1971 
1972  if (is_dng && s->is_tiled) {
1973  if (!s->is_jpeg) {
1974  avpriv_report_missing_feature(avctx, "DNG uncompressed tiled images");
1975  return AVERROR_PATCHWELCOME;
1976  } else if (!s->is_bayer) {
1977  avpriv_report_missing_feature(avctx, "DNG JPG-compressed tiled non-bayer-encoded images");
1978  return AVERROR_PATCHWELCOME;
1979  } else {
1980  if ((ret = dng_decode_tiles(avctx, (AVFrame*)data, avpkt)) > 0)
1981  *got_frame = 1;
1982  return ret;
1983  }
1984  }
1985 
1986  /* Handle TIFF images and DNG images with uncompressed strips (non-tiled) */
1987 
1988  planes = s->planar ? s->bppcount : 1;
1989  for (plane = 0; plane < planes; plane++) {
1990  uint8_t *five_planes = NULL;
1991  int remaining = avpkt->size;
1992  int decoded_height;
1993  stride = p->linesize[plane];
1994  dst = p->data[plane];
1996  s->avctx->pix_fmt == AV_PIX_FMT_RGBA) {
1997  stride = stride * 5 / 4;
1998  five_planes =
1999  dst = av_malloc(stride * s->height);
2000  if (!dst)
2001  return AVERROR(ENOMEM);
2002  }
2003  for (i = 0; i < s->height; i += s->rps) {
2004  if (i)
2005  dst += s->rps * stride;
2006  if (s->stripsizesoff)
2007  ssize = ff_tget(&stripsizes, s->sstype, le);
2008  else
2009  ssize = s->stripsize;
2010 
2011  if (s->strippos)
2012  soff = ff_tget(&stripdata, s->sot, le);
2013  else
2014  soff = s->stripoff;
2015 
2016  if (soff > avpkt->size || ssize > avpkt->size - soff || ssize > remaining) {
2017  av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
2018  av_freep(&five_planes);
2019  return AVERROR_INVALIDDATA;
2020  }
2021  remaining -= ssize;
2022  if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i,
2023  FFMIN(s->rps, s->height - i))) < 0) {
2024  if (avctx->err_recognition & AV_EF_EXPLODE) {
2025  av_freep(&five_planes);
2026  return ret;
2027  }
2028  break;
2029  }
2030  }
2031  decoded_height = FFMIN(i, s->height);
2032 
2033  if (s->predictor == 2) {
2034  if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
2035  av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported");
2036  return AVERROR_PATCHWELCOME;
2037  }
2038  dst = five_planes ? five_planes : p->data[plane];
2039  soff = s->bpp >> 3;
2040  if (s->planar)
2041  soff = FFMAX(soff / s->bppcount, 1);
2042  ssize = s->width * soff;
2043  if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
2046  s->avctx->pix_fmt == AV_PIX_FMT_YA16LE ||
2049  for (i = 0; i < decoded_height; i++) {
2050  for (j = soff; j < ssize; j += 2)
2051  AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
2052  dst += stride;
2053  }
2054  } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
2057  s->avctx->pix_fmt == AV_PIX_FMT_YA16BE ||
2060  for (i = 0; i < decoded_height; i++) {
2061  for (j = soff; j < ssize; j += 2)
2062  AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
2063  dst += stride;
2064  }
2065  } else {
2066  for (i = 0; i < decoded_height; i++) {
2067  for (j = soff; j < ssize; j++)
2068  dst[j] += dst[j - soff];
2069  dst += stride;
2070  }
2071  }
2072  }
2073 
2075  int c = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255);
2076  dst = p->data[plane];
2077  for (i = 0; i < s->height; i++) {
2078  for (j = 0; j < stride; j++)
2079  dst[j] = c - dst[j];
2080  dst += stride;
2081  }
2082  }
2083 
2086  int x = s->avctx->pix_fmt == AV_PIX_FMT_RGB0 ? 4 : 5;
2087  uint8_t *src = five_planes ? five_planes : p->data[plane];
2088  dst = p->data[plane];
2089  for (i = 0; i < s->height; i++) {
2090  for (j = 0; j < s->width; j++) {
2091  int k = 255 - src[x * j + 3];
2092  int r = (255 - src[x * j ]) * k;
2093  int g = (255 - src[x * j + 1]) * k;
2094  int b = (255 - src[x * j + 2]) * k;
2095  dst[4 * j ] = r * 257 >> 16;
2096  dst[4 * j + 1] = g * 257 >> 16;
2097  dst[4 * j + 2] = b * 257 >> 16;
2098  dst[4 * j + 3] = s->avctx->pix_fmt == AV_PIX_FMT_RGBA ? src[x * j + 4] : 255;
2099  }
2100  src += stride;
2101  dst += p->linesize[plane];
2102  }
2103  av_freep(&five_planes);
2104  } else if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2106  dst = p->data[plane];
2107  for (i = 0; i < s->height; i++) {
2108  for (j = 0; j < s->width; j++) {
2109  uint64_t k = 65535 - AV_RB16(dst + 8 * j + 6);
2110  uint64_t r = (65535 - AV_RB16(dst + 8 * j )) * k;
2111  uint64_t g = (65535 - AV_RB16(dst + 8 * j + 2)) * k;
2112  uint64_t b = (65535 - AV_RB16(dst + 8 * j + 4)) * k;
2113  AV_WB16(dst + 8 * j , r * 65537 >> 32);
2114  AV_WB16(dst + 8 * j + 2, g * 65537 >> 32);
2115  AV_WB16(dst + 8 * j + 4, b * 65537 >> 32);
2116  AV_WB16(dst + 8 * j + 6, 65535);
2117  }
2118  dst += p->linesize[plane];
2119  }
2120  }
2121  }
2122 
2123  if (s->planar && s->bppcount > 2) {
2124  FFSWAP(uint8_t*, p->data[0], p->data[2]);
2125  FFSWAP(int, p->linesize[0], p->linesize[2]);
2126  FFSWAP(uint8_t*, p->data[0], p->data[1]);
2127  FFSWAP(int, p->linesize[0], p->linesize[1]);
2128  }
2129 
2130  if (s->is_bayer && s->white_level && s->bpp == 16 && !is_dng) {
2131  uint16_t *dst = (uint16_t *)p->data[0];
2132  for (i = 0; i < s->height; i++) {
2133  for (j = 0; j < s->width; j++)
2134  dst[j] = FFMIN((dst[j] / (float)s->white_level) * 65535, 65535);
2135  dst += stride / 2;
2136  }
2137  }
2138 
2139  *got_frame = 1;
2140 
2141  return avpkt->size;
2142 }
2143 
2145 {
2146  TiffContext *s = avctx->priv_data;
2147  const AVCodec *codec;
2148  int ret;
2149 
2150  s->width = 0;
2151  s->height = 0;
2152  s->subsampling[0] =
2153  s->subsampling[1] = 1;
2154  s->avctx = avctx;
2155  ff_lzw_decode_open(&s->lzw);
2156  if (!s->lzw)
2157  return AVERROR(ENOMEM);
2159 
2160  /* Allocate JPEG frame */
2161  s->jpgframe = av_frame_alloc();
2162  if (!s->jpgframe)
2163  return AVERROR(ENOMEM);
2164 
2165  /* Prepare everything needed for JPEG decoding */
2167  if (!codec)
2168  return AVERROR_BUG;
2169  s->avctx_mjpeg = avcodec_alloc_context3(codec);
2170  if (!s->avctx_mjpeg)
2171  return AVERROR(ENOMEM);
2172  s->avctx_mjpeg->flags = avctx->flags;
2173  s->avctx_mjpeg->flags2 = avctx->flags2;
2174  s->avctx_mjpeg->dct_algo = avctx->dct_algo;
2175  s->avctx_mjpeg->idct_algo = avctx->idct_algo;
2176  ret = ff_codec_open2_recursive(s->avctx_mjpeg, codec, NULL);
2177  if (ret < 0) {
2178  return ret;
2179  }
2180 
2181  return 0;
2182 }
2183 
2184 static av_cold int tiff_end(AVCodecContext *avctx)
2185 {
2186  TiffContext *const s = avctx->priv_data;
2187 
2188  free_geotags(s);
2189 
2190  ff_lzw_decode_close(&s->lzw);
2191  av_freep(&s->deinvert_buf);
2192  s->deinvert_buf_size = 0;
2193  av_freep(&s->yuv_line);
2194  s->yuv_line_size = 0;
2195  av_freep(&s->fax_buffer);
2196  s->fax_buffer_size = 0;
2197  av_frame_free(&s->jpgframe);
2199  return 0;
2200 }
2201 
2202 #define OFFSET(x) offsetof(TiffContext, x)
2203 static const AVOption tiff_options[] = {
2204  { "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 },
2205  { "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 },
2206  { "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 },
2207  { NULL },
2208 };
2209 
2210 static const AVClass tiff_decoder_class = {
2211  .class_name = "TIFF decoder",
2212  .item_name = av_default_item_name,
2213  .option = tiff_options,
2214  .version = LIBAVUTIL_VERSION_INT,
2215 };
2216 
2218  .name = "tiff",
2219  .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
2220  .type = AVMEDIA_TYPE_VIDEO,
2221  .id = AV_CODEC_ID_TIFF,
2222  .priv_data_size = sizeof(TiffContext),
2223  .init = tiff_init,
2224  .close = tiff_end,
2225  .decode = decode_frame,
2226  .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
2227  .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
2228  .priv_class = &tiff_decoder_class,
2229 };
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: internal.h:48
Definition: tiff.h:64
static uint16_t av_always_inline dng_process_color8(uint16_t value, const uint16_t *lut, uint16_t black_level, float scale_factor)
Definition: tiff.c:808
int ff_lzw_decode(LZWState *p, uint8_t *buf, int len)
Decode given number of bytes NOTE: the algorithm here is inspired from the LZW GIF decoder written by...
Definition: lzw.c:169
#define NULL
Definition: coverity.c:32
Definition: tiff.h:121
int offset
Definition: tiff.h:211
static void av_always_inline dng_blit(TiffContext *s, uint8_t *dst, int dst_stride, const uint8_t *src, int src_stride, int width, int height, int is_single_comp, int is_u16)
Definition: tiff.c:815
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
const TiffGeoTagKeyName ff_tiff_projection_codes[]
Definition: tiff_data.c:1497
static int shift(int a, int b)
Definition: sonic.c:82
int size
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2549
This structure describes decoded (raw) audio or video data.
Definition: frame.h:300
TiffPhotometric
list of TIFF, TIFF/AP and DNG PhotometricInterpretation (TIFF_PHOTOMETRIC) values ...
Definition: tiff.h:183
int dct_algo
DCT algorithm, see FF_DCT_* below.
Definition: avcodec.h:1716
AVOption.
Definition: opt.h:246
int tile_offsets_offset
Definition: tiff.c:100
"Linear transfer characteristics"
Definition: pixfmt.h:489
int fill_order
Definition: tiff.c:79
unsigned int bpp
Definition: tiff.c:69
8 bits gray, 8 bits alpha
Definition: pixfmt.h:143
int geotag_count
Definition: tiff.c:112
uint16_t dng_lut[65536]
Definition: tiff.c:88
uint32_t res[4]
Definition: tiff.c:80
Definition: tiff.h:63
int sstype
Definition: tiff.c:93
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:379
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
AVFrame * f
Definition: thread.h:35
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
uint8_t pattern[4]
Definition: tiff.c:85
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
Definition: utils.c:104
int ff_tadd_doubles_metadata(int count, const char *name, const char *sep, GetByteContext *gb, int le, AVDictionary **metadata)
Adds count doubles converted to a string into the metadata dictionary.
Definition: tiff_common.c:147
const char * g
Definition: vf_curves.c:115
const char *const name
Definition: tiff.h:217
const char * desc
Definition: nvenc.c:79
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
const uint8_t ff_reverse[256]
Definition: reverse.c:23
#define avpriv_request_sample(...)
bayer, GBGB..(odd line), RGRG..(even line), 8-bit samples
Definition: pixfmt.h:262
Definition: tiff.h:57
bayer, GRGR..(odd line), BGBG..(even line), 8-bit samples
Definition: pixfmt.h:263
TIFF constants & data structures.
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
int num
Numerator.
Definition: rational.h:59
unsigned white_level
Definition: tiff.c:87
int size
Definition: packet.h:356
const char * b
Definition: vf_curves.c:116
static av_always_inline void bytestream2_init_writer(PutByteContext *p, uint8_t *buf, int buf_size)
Definition: bytestream.h:143
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
av_cold void ff_lzw_decode_close(LZWState **p)
Definition: lzw.c:118
static const char * search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
Definition: tiff.c:162
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown) That is the width of a pixel divided by the height of the pixel...
Definition: avcodec.h:905
av_cold void ff_lzw_decode_open(LZWState **p)
Definition: lzw.c:113
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:736
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
Definition: bytestream.h:133
#define AV_RL16
Definition: intreadwrite.h:42
static void free_geotags(TiffContext *const s)
Definition: tiff.c:121
void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_malloc but the buffer has additional AV_INPUT_BUFFER_PADDING_SIZE at the end w...
Definition: utils.c:70
const char * key
uint8_t * fax_buffer
Definition: tiff.c:109
bayer, BGBG..(odd line), GRGR..(even line), 8-bit samples
Definition: pixfmt.h:260
enum TiffType tiff_type
Definition: tiff.c:67
unsigned int yuv_line_size
Definition: tiff.c:108
int stride
Definition: mace.c:144
AVCodec.
Definition: codec.h:190
Definition: tiff.h:125
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:71
static av_always_inline unsigned int bytestream2_get_bufferu(GetByteContext *g, uint8_t *dst, unsigned int size)
Definition: bytestream.h:273
Definition: tiff.h:124
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: tiff.c:1781
Macro definitions for various function/variable attributes.
static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride, const uint8_t *src, int size, int strip_start, int lines)
Definition: tiff.c:556
static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
Definition: tiff.c:1249
static const uint8_t type_sizes[14]
sizes of various TIFF field types (string size = 100)
Definition: tiff_common.h:54
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:379
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
int deinvert_buf_size
Definition: tiff.c:106
av_cold void ff_ccitt_unpack_init(void)
initialize unpacker code
Definition: faxcompr.c:99
planar GBRA 4:4:4:4 64bpp, big-endian
Definition: pixfmt.h:216
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
int get_subimage
Definition: tiff.c:63
static uint16_t av_always_inline dng_process_color16(uint16_t value, const uint16_t *lut, uint16_t black_level, float scale_factor)
Map stored raw sensor values into linear reference values (see: DNG Specification - Chapter 5) ...
Definition: tiff.c:787
uint8_t
#define av_cold
Definition: attributes.h:88
#define av_malloc(s)
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:190
packed RGB 8:8:8, 32bpp, RGBXRGBX... X=unused/undefined
Definition: pixfmt.h:238
char * val
Definition: tiff.h:212
8 bits with AV_PIX_FMT_RGB32 palette
Definition: pixfmt.h:77
AVOptions.
#define TIFF_GEO_KEY_USER_DEFINED
Definition: tiff_data.h:48
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as lit...
Definition: pixfmt.h:103
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:92
Multithreading support functions.
packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is st...
Definition: pixfmt.h:205
also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:485
static av_cold int tiff_init(AVCodecContext *avctx)
Definition: tiff.c:2144
int is_thumbnail
Definition: tiff.c:81
static AVFrame * frame
const char data[16]
Definition: mxf.c:91
Structure to hold side data for an AVFrame.
Definition: frame.h:206
int get_thumbnail
Definition: tiff.c:65
uint8_t * data
Definition: packet.h:355
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:174
const uint8_t * buffer
Definition: bytestream.h:34
uint32_t tag
Definition: movenc.c:1532
static int add_metadata(int count, int type, const char *name, const char *sep, TiffContext *s, AVFrame *frame)
Definition: tiff.c:265
int stripoff
Definition: tiff.c:95
#define AVERROR_EOF
End of file.
Definition: error.h:55
bitstream reader API header.
AVDictionary * metadata
metadata.
Definition: frame.h:586
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
LZWState * lzw
Definition: tiff.c:96
#define AV_WB16(p, v)
Definition: intreadwrite.h:405
#define AV_PIX_FMT_BAYER_GRBG16
Definition: pixfmt.h:424
#define av_log(a,...)
Definition: tiff.h:78
static av_always_inline int bytestream2_get_bytes_left(GetByteContext *g)
Definition: bytestream.h:154
int planar
Definition: tiff.c:75
#define U(x)
Definition: vp56_arith.h:37
#define src
Definition: vp8dsp.c:254
Definition: lzw.c:46
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
int height
Definition: tiff.c:68
int width
Definition: frame.h:358
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
16 bits gray, 16 bits alpha (big-endian)
Definition: pixfmt.h:212
error code definitions
int ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Call avcodec_open2 recursively by decrementing counter, unlocking mutex, calling the function and the...
Definition: utils.c:559
unsigned int fax_buffer_size
Definition: tiff.c:110
enum TiffGeoTagKey key
Definition: tiff.h:208
int sot
Definition: tiff.c:94
#define AV_RB16
Definition: intreadwrite.h:53
#define AVERROR(e)
Definition: error.h:43
TIFF data tables.
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:148
static av_always_inline void bytestream2_skip(GetByteContext *g, unsigned int size)
Definition: bytestream.h:164
#define pv
Definition: regdef.h:60
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:203
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:188
const uint8_t * code
Definition: spdifenc.c:413
static av_cold int tiff_end(AVCodecContext *avctx)
Definition: tiff.c:2184
unsigned ff_tget_short(GetByteContext *gb, int le)
Reads a short from the bytestream using given endianness.
Definition: tiff_common.c:43
int avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
Return decoded output data from a decoder.
Definition: decode.c:649
const char * r
Definition: vf_curves.c:114
unsigned int pos
Definition: spdifenc.c:412
static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
Definition: tiff.c:335
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
unsigned ff_tget(GetByteContext *gb, int type, int le)
Reads a byte from the bytestream using given endianness.
Definition: tiff_common.c:62
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:606
Definition: graph2dot.c:48
uint16_t get_page
Definition: tiff.c:64
const char * name
Name of the codec implementation.
Definition: codec.h:197
AVCodecContext * avctx_mjpeg
Definition: tiff.c:60
static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
Definition: tiff.c:1230
int width
Definition: tiff.c:68
static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride, const uint8_t *src, int size, int width, int lines)
Definition: tiff.c:521
int strips
Definition: tiff.c:93
int ff_ccitt_unpack(AVCodecContext *avctx, const uint8_t *src, int srcsize, uint8_t *dst, int height, int stride, enum TiffCompr compr, int opts)
unpack data compressed with CCITT Group 3 1/2-D or Group 4 method
Definition: faxcompr.c:393
static const uint8_t offset[127][2]
Definition: vf_spp.c:93
static av_always_inline av_const uint16_t av_clip_uint16_c(int a)
Clip a signed integer value into the 0-65535 range.
Definition: common.h:181
#define FFMAX(a, b)
Definition: common.h:94
uint8_t * yuv_line
Definition: tiff.c:107
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: codec.h:106
TIFF image based on the TIFF 6.0 or TIFF/EP (ISO 12234-2) specifications.
Definition: tiff.h:39
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:93
int predictor
Definition: tiff.c:78
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
enum TiffPhotometric photometric
Definition: tiff.c:74
const TiffGeoTagKeyName ff_tiff_proj_cs_type_codes[]
Definition: tiff_data.c:516
static const struct @315 planes[]
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
const char * name
Definition: qsvenc.c:46
int stripsize
Definition: tiff.c:95
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:383
static const AVOption tiff_options[]
Definition: tiff.c:2203
int err_recognition
Error recognition; may misdetect some more or less valid parts as errors.
Definition: avcodec.h:1655
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:381
#define FFMIN(a, b)
Definition: common.h:96
uint32_t sub_ifd
Definition: tiff.c:90
int le
Definition: tiff.c:72
static int dng_decode_strip(AVCodecContext *avctx, AVFrame *frame)
Definition: tiff.c:1044
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
Definition: options.c:157
int width
picture width / height.
Definition: avcodec.h:699
int idct_algo
IDCT algorithm, see FF_IDCT_* below.
Definition: avcodec.h:1729
static const ElemCat * elements[ELEMENT_COUNT]
Definition: signature.h:566
uint8_t w
Definition: llviddspenc.c:38
int rps
Definition: tiff.c:93
unsigned ff_tget_long(GetByteContext *gb, int le)
Reads a long from the bytestream using given endianness.
Definition: tiff_common.c:49
static void unpack_yuv(TiffContext *s, AVFrame *p, const uint8_t *src, int lnum)
Definition: tiff.c:361
static void tiff_set_type(TiffContext *s, enum TiffType tiff_type)
Definition: tiff.c:116
#define av_err2str(errnum)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition: error.h:119
unsigned last_tag
Definition: tiff.c:82
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
#define s(width, name)
Definition: cbs_vp9.c:257
The data contains an ICC profile as an opaque octet buffer following the format described by ISO 1507...
Definition: frame.h:143
int is_bayer
Definition: tiff.c:84
#define AV_RL32
Definition: intreadwrite.h:146
#define AV_EF_EXPLODE
abort decoding on minor error detection
Definition: avcodec.h:1666
int is_tiled
Definition: tiff.c:99
static void av_always_inline horizontal_fill(TiffContext *s, unsigned int bpp, uint8_t *dst, int usePtr, const uint8_t *src, uint8_t c, int width, int offset)
Definition: tiff.c:280
int is_jpeg
Definition: tiff.c:103
#define AV_PIX_FMT_BAYER_BGGR16
Definition: pixfmt.h:421
#define FF_ARRAY_ELEMS(a)
#define TIFF_GEO_KEY_UNDEFINED
Definition: tiff_data.h:47
int palette_is_set
Definition: tiff.c:71
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
static av_always_inline int bytestream2_seek_p(PutByteContext *p, int offset, int whence)
Definition: bytestream.h:232
static av_always_inline int bytestream2_tell(GetByteContext *g)
Definition: bytestream.h:188
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:373
int avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
Supply raw packet data as input to a decoder.
Definition: decode.c:586
#define AV_PIX_FMT_BAYER_GBRG16
Definition: pixfmt.h:423
uint32_t palette[256]
Definition: tiff.c:70
TiffType
TIFF types in ascenting priority (last in the list is highest)
Definition: tiff.h:37
Definition: tiff.h:51
#define AV_LOG_INFO
Standard information.
Definition: log.h:187
static const char * get_geokey_name(int key)
Definition: tiff.c:137
TiffCompr
list of TIFF, TIFF/EP and DNG compression types
Definition: tiff.h:120
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:253
Libavcodec external API header.
void avcodec_free_context(AVCodecContext **avctx)
Free the codec context and everything associated with it and write NULL to the provided pointer...
Definition: options.c:172
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:331
static int init_get_bits8(GetBitContext *s, const uint8_t *buffer, int byte_size)
Initialize GetBitContext.
Definition: get_bits.h:677
enum TiffCompr compr
Definition: tiff.c:73
unsigned int bppcount
Definition: tiff.c:69
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
#define AV_OPT_FLAG_VIDEO_PARAM
Definition: opt.h:279
main external API structure.
Definition: avcodec.h:526
Definition: tiff.h:123
uint8_t * data
Definition: frame.h:208
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition: dict.c:70
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:50
AVCodecContext * avctx
Definition: tiff.c:56
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
double value
Definition: eval.c:98
Describe the class of an AVClass context structure.
Definition: log.h:67
AVFrameSideData * av_frame_new_side_data(AVFrame *frame, enum AVFrameSideDataType type, int size)
Add a new side data to a frame.
Definition: frame.c:727
Y , 16bpp, big-endian.
Definition: pixfmt.h:97
static void inflate(uint8_t *dst, const uint8_t *p1, int width, int threshold, const uint8_t *coordinates[], int coord, int maxc)
Definition: vf_neighbor.c:198
Rational number (pair of numerator and denominator).
Definition: rational.h:58
int subsampling[2]
Definition: tiff.c:76
#define AV_OPT_FLAG_DECODING_PARAM
a generic parameter which can be set by the user for demuxing or decoding
Definition: opt.h:277
cl_device_type type
Digital Negative (DNG) image part of an CinemaDNG image sequence.
Definition: tiff.h:43
#define snprintf
Definition: snprintf.h:34
uint16_t cur_page
Definition: tiff.c:91
static int get_geokey_type(int key)
Definition: tiff.c:147
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:919
int ff_tadd_shorts_metadata(int count, const char *name, const char *sep, GetByteContext *gb, int le, int is_signed, AVDictionary **metadata)
Adds count shorts converted to a string into the metadata dictionary.
Definition: tiff_common.c:178
int tile_length
Definition: tiff.c:101
int strippos
Definition: tiff.c:95
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:554
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
static int dng_decode_jpeg(AVCodecContext *avctx, AVFrame *frame, int tile_byte_count, int dst_x, int dst_y, int w, int h)
Definition: tiff.c:878
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:314
int count
Definition: tiff.h:210
#define AV_PIX_FMT_BAYER_RGGB16
Definition: pixfmt.h:422
enum TiffTags type
Definition: tiff.h:209
LZW decoding routines.
#define OFFSET(x)
Definition: tiff.c:2202
static int dng_decode_tiles(AVCodecContext *avctx, AVFrame *frame, AVPacket *avpkt)
Definition: tiff.c:969
Y , 1bpp, 0 is black, 1 is white, in each byte pixels are ordered from the msb to the lsb...
Definition: pixfmt.h:76
int
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
int stripsizesoff
Definition: tiff.c:95
Y , 8bpp.
Definition: pixfmt.h:74
int tile_byte_counts_offset
Definition: tiff.c:100
uint8_t * deinvert_buf
Definition: tiff.c:105
common internal api header.
if(ret< 0)
Definition: vf_mcdeint.c:279
static char * get_geokey_val(int key, int val)
Definition: tiff.c:171
static av_always_inline unsigned int bytestream2_get_eof(PutByteContext *p)
Definition: bytestream.h:328
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
static double c[64]
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as big...
Definition: pixfmt.h:102
#define AV_WL16(p, v)
Definition: intreadwrite.h:412
static char * doubles2str(double *dp, int count, const char *sep)
Definition: tiff.c:239
bayer, RGRG..(odd line), GBGB..(even line), 8-bit samples
Definition: pixfmt.h:261
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
void av_init_packet(AVPacket *pkt)
Initialize optional fields of a packet with default values.
Definition: avpacket.c:35
AVFrame * jpgframe
Definition: tiff.c:61
int den
Denominator.
Definition: rational.h:60
int ff_lzw_decode_init(LZWState *p, int csize, const uint8_t *buf, int buf_size, int mode)
Initialize LZW decoder.
Definition: lzw.c:131
#define AVERROR_UNKNOWN
Unknown error, typically from an external library.
Definition: error.h:71
unsigned bps
Definition: movenc.c:1533
#define RET_GEOKEY_VAL(TYPE, array)
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:215
int tile_width
Definition: tiff.c:101
void * priv_data
Definition: avcodec.h:553
#define av_free(p)
int ff_tadd_string_metadata(int count, const char *name, GetByteContext *gb, int le, AVDictionary **metadata)
Adds a string of count characters into the metadata dictionary.
Definition: tiff_common.c:241
int len
Digital Negative (DNG) image.
Definition: tiff.h:41
Y , 16bpp, little-endian.
Definition: pixfmt.h:98
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:378
static av_always_inline int bytestream2_seek(GetByteContext *g, int offset, int whence)
Definition: bytestream.h:208
16 bits gray, 16 bits alpha (little-endian)
Definition: pixfmt.h:213
int flags2
AV_CODEC_FLAG2_*.
Definition: avcodec.h:613
int fax_opts
Definition: tiff.c:77
static const AVClass tiff_decoder_class
Definition: tiff.c:2210
int ff_tread_tag(GetByteContext *gb, int le, unsigned *tag, unsigned *type, unsigned *count, int *next)
Reads the first 3 fields of a TIFF tag, which are the tag id, the tag type and the count of values fo...
Definition: tiff_common.c:286
#define RET_GEOKEY(TYPE, array, element)
Definition: tiff.c:132
int ff_tdecode_header(GetByteContext *gb, int *le, int *ifd_offset)
Decodes a TIFF header from the input bytestream and sets the endianness in *le and the offset to the ...
Definition: tiff_common.c:261
unsigned black_level
Definition: tiff.c:86
int height
Definition: frame.h:358
#define av_freep(p)
static int init_image(TiffContext *s, ThreadFrame *frame)
Definition: tiff.c:1057
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:548
AVCodec ff_tiff_decoder
Definition: tiff.c:2217
#define av_always_inline
Definition: attributes.h:45
planar GBR 4:4:4 48bpp, little-endian
Definition: pixfmt.h:175
#define av_malloc_array(a, b)
#define FFSWAP(type, a, b)
Definition: common.h:99
GetByteContext gb
Definition: tiff.c:57
static int cmp_id_key(const void *id, const void *k)
Definition: tiff.c:157
double ff_tget_double(GetByteContext *gb, int le)
Reads a double from the bytestream using given endianness.
Definition: tiff_common.c:55
TiffGeoTag * geotags
Definition: tiff.c:113
MJPEG decoder.
planar GBRA 4:4:4:4 64bpp, little-endian
Definition: pixfmt.h:217
#define ADD_METADATA(count, name, sep)
Definition: tiff.h:74
static double val(void *priv, double ch)
Definition: aeval.c:76
This structure stores compressed data.
Definition: packet.h:332
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
Definition: pixdesc.h:144
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:50
for(j=16;j >0;--j)
CCITT Fax Group 3 and 4 decompression.
packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is st...
Definition: pixfmt.h:206
static void unpack_gray(TiffContext *s, AVFrame *p, const uint8_t *src, int lnum, int width, int bpp)
Definition: tiff.c:348
void * av_mallocz_array(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().
Definition: mem.c:190