FFmpeg  4.4.4
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  AVPacket *jpkt; // encoded JPEG tile
62  AVFrame *jpgframe; // decoded JPEG tile
63 
65  uint16_t get_page;
67 
68  enum TiffType tiff_type;
69  int width, height;
70  unsigned int bpp, bppcount;
71  uint32_t palette[256];
73  int le;
74  enum TiffCompr compr;
76  int planar;
77  int subsampling[2];
78  int fax_opts;
79  int predictor;
81  uint32_t res[4];
83  unsigned last_tag;
84 
85  int is_bayer;
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;
98 
99  /* Tile support */
100  int is_tiled;
103 
104  int is_jpeg;
105 
109  unsigned int yuv_line_size;
111  unsigned int fax_buffer_size;
112 
115 } TiffContext;
116 
117 static void tiff_set_type(TiffContext *s, enum TiffType tiff_type) {
118  if (s->tiff_type < tiff_type) // Prioritize higher-valued entries
119  s->tiff_type = tiff_type;
120 }
121 
122 static void free_geotags(TiffContext *const s)
123 {
124  int i;
125  for (i = 0; i < s->geotag_count; i++) {
126  if (s->geotags[i].val)
127  av_freep(&s->geotags[i].val);
128  }
129  av_freep(&s->geotags);
130  s->geotag_count = 0;
131 }
132 
133 #define RET_GEOKEY(TYPE, array, element)\
134  if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
135  key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(tiff_##array##_name_type_map))\
136  return tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].element;
137 
138 static const char *get_geokey_name(int key)
139 {
140  RET_GEOKEY(VERT, vert, name);
141  RET_GEOKEY(PROJ, proj, name);
142  RET_GEOKEY(GEOG, geog, name);
143  RET_GEOKEY(CONF, conf, name);
144 
145  return NULL;
146 }
147 
148 static int get_geokey_type(int key)
149 {
150  RET_GEOKEY(VERT, vert, type);
151  RET_GEOKEY(PROJ, proj, type);
152  RET_GEOKEY(GEOG, geog, type);
153  RET_GEOKEY(CONF, conf, type);
154 
155  return AVERROR_INVALIDDATA;
156 }
157 
158 static int cmp_id_key(const void *id, const void *k)
159 {
160  return *(const int*)id - ((const TiffGeoTagKeyName*)k)->key;
161 }
162 
163 static const char *search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
164 {
165  TiffGeoTagKeyName *r = bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key);
166  if(r)
167  return r->name;
168 
169  return NULL;
170 }
171 
172 static char *get_geokey_val(int key, int val)
173 {
174  char *ap;
175 
177  return av_strdup("undefined");
179  return av_strdup("User-Defined");
180 
181 #define RET_GEOKEY_VAL(TYPE, array)\
182  if (val >= TIFF_##TYPE##_OFFSET &&\
183  val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(tiff_##array##_codes))\
184  return av_strdup(tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET]);
185 
186  switch (key) {
188  RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
189  break;
191  RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
192  break;
196  RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
197  break;
200  RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
201  break;
203  RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
204  RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
205  break;
207  RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
208  RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
209  break;
211  RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
212  break;
214  RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
215  break;
218  if(ap) return ap;
219  break;
222  if(ap) return ap;
223  break;
225  RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
226  break;
228  RET_GEOKEY_VAL(VERT_CS, vert_cs);
229  RET_GEOKEY_VAL(ORTHO_VERT_CS, ortho_vert_cs);
230  break;
231 
232  }
233 
234  ap = av_malloc(14);
235  if (ap)
236  snprintf(ap, 14, "Unknown-%d", val);
237  return ap;
238 }
239 
240 static char *doubles2str(double *dp, int count, const char *sep)
241 {
242  int i;
243  char *ap, *ap0;
244  uint64_t component_len;
245  if (!sep) sep = ", ";
246  component_len = 24LL + strlen(sep);
247  if (count >= (INT_MAX - 1)/component_len)
248  return NULL;
249  ap = av_malloc(component_len * count + 1);
250  if (!ap)
251  return NULL;
252  ap0 = ap;
253  ap[0] = '\0';
254  for (i = 0; i < count; i++) {
255  unsigned l = snprintf(ap, component_len, "%.15g%s", dp[i], sep);
256  if(l >= component_len) {
257  av_free(ap0);
258  return NULL;
259  }
260  ap += l;
261  }
262  ap0[strlen(ap0) - strlen(sep)] = '\0';
263  return ap0;
264 }
265 
266 static int add_metadata(int count, int type,
267  const char *name, const char *sep, TiffContext *s, AVFrame *frame)
268 {
269  switch(type) {
270  case TIFF_DOUBLE: return ff_tadd_doubles_metadata(count, name, sep, &s->gb, s->le, &frame->metadata);
271  case TIFF_SHORT : return ff_tadd_shorts_metadata(count, name, sep, &s->gb, s->le, 0, &frame->metadata);
272  case TIFF_STRING: return ff_tadd_string_metadata(count, name, &s->gb, s->le, &frame->metadata);
273  default : return AVERROR_INVALIDDATA;
274  };
275 }
276 
277 /**
278  * Map stored raw sensor values into linear reference values (see: DNG Specification - Chapter 5)
279  */
280 static uint16_t av_always_inline dng_process_color16(uint16_t value,
281  const uint16_t *lut,
282  uint16_t black_level,
283  float scale_factor)
284 {
285  float value_norm;
286 
287  // Lookup table lookup
288  if (lut)
289  value = lut[value];
290 
291  // Black level subtraction
292  value = av_clip_uint16_c((unsigned)value - black_level);
293 
294  // Color scaling
295  value_norm = (float)value * scale_factor;
296 
297  value = av_clip_uint16_c(value_norm * 65535);
298 
299  return value;
300 }
301 
302 static uint16_t av_always_inline dng_process_color8(uint16_t value,
303  const uint16_t *lut,
304  uint16_t black_level,
305  float scale_factor)
306 {
307  return dng_process_color16(value, lut, black_level, scale_factor) >> 8;
308 }
309 
310 static void av_always_inline dng_blit(TiffContext *s, uint8_t *dst, int dst_stride,
311  const uint8_t *src, int src_stride, int width, int height,
312  int is_single_comp, int is_u16)
313 {
314  int line, col;
315  float scale_factor;
316 
317  scale_factor = 1.0f / (s->white_level - s->black_level);
318 
319  if (is_single_comp) {
320  if (!is_u16)
321  return; /* <= 8bpp unsupported */
322 
323  /* Image is double the width and half the height we need, each row comprises 2 rows of the output
324  (split vertically in the middle). */
325  for (line = 0; line < height / 2; line++) {
326  uint16_t *dst_u16 = (uint16_t *)dst;
327  uint16_t *src_u16 = (uint16_t *)src;
328 
329  /* Blit first half of input row row to initial row of output */
330  for (col = 0; col < width; col++)
331  *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level, scale_factor);
332 
333  /* Advance the destination pointer by a row (source pointer remains in the same place) */
334  dst += dst_stride * sizeof(uint16_t);
335  dst_u16 = (uint16_t *)dst;
336 
337  /* Blit second half of input row row to next row of output */
338  for (col = 0; col < width; col++)
339  *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level, scale_factor);
340 
341  dst += dst_stride * sizeof(uint16_t);
342  src += src_stride * sizeof(uint16_t);
343  }
344  } else {
345  /* Input and output image are the same size and the MJpeg decoder has done per-component
346  deinterleaving, so blitting here is straightforward. */
347  if (is_u16) {
348  for (line = 0; line < height; line++) {
349  uint16_t *dst_u16 = (uint16_t *)dst;
350  uint16_t *src_u16 = (uint16_t *)src;
351 
352  for (col = 0; col < width; col++)
353  *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level, scale_factor);
354 
355  dst += dst_stride * sizeof(uint16_t);
356  src += src_stride * sizeof(uint16_t);
357  }
358  } else {
359  for (line = 0; line < height; line++) {
360  uint8_t *dst_u8 = dst;
361  const uint8_t *src_u8 = src;
362 
363  for (col = 0; col < width; col++)
364  *dst_u8++ = dng_process_color8(*src_u8++, s->dng_lut, s->black_level, scale_factor);
365 
366  dst += dst_stride;
367  src += src_stride;
368  }
369  }
370  }
371 }
372 
374  unsigned int bpp, uint8_t* dst,
375  int usePtr, const uint8_t *src,
376  uint8_t c, int width, int offset)
377 {
378  switch (bpp) {
379  case 1:
380  while (--width >= 0) {
381  dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
382  dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
383  dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
384  dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
385  dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
386  dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
387  dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
388  dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
389  }
390  break;
391  case 2:
392  while (--width >= 0) {
393  dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
394  dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
395  dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
396  dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
397  }
398  break;
399  case 4:
400  while (--width >= 0) {
401  dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
402  dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
403  }
404  break;
405  case 10:
406  case 12:
407  case 14: {
408  uint16_t *dst16 = (uint16_t *)dst;
409  int is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
410  uint8_t shift = is_dng ? 0 : 16 - bpp;
411  GetBitContext gb;
412 
413  init_get_bits8(&gb, src, width);
414  for (int i = 0; i < s->width; i++) {
415  dst16[i] = get_bits(&gb, bpp) << shift;
416  }
417  }
418  break;
419  default:
420  if (usePtr) {
421  memcpy(dst + offset, src, width);
422  } else {
423  memset(dst + offset, c, width);
424  }
425  }
426 }
427 
428 static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
429 {
430  int i;
431 
432  av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
433  if (!s->deinvert_buf)
434  return AVERROR(ENOMEM);
435  for (i = 0; i < size; i++)
436  s->deinvert_buf[i] = ff_reverse[src[i]];
437 
438  return 0;
439 }
440 
441 static void unpack_gray(TiffContext *s, AVFrame *p,
442  const uint8_t *src, int lnum, int width, int bpp)
443 {
444  GetBitContext gb;
445  uint16_t *dst = (uint16_t *)(p->data[0] + lnum * p->linesize[0]);
446 
447  init_get_bits8(&gb, src, width);
448 
449  for (int i = 0; i < s->width; i++) {
450  dst[i] = get_bits(&gb, bpp);
451  }
452 }
453 
454 static void unpack_yuv(TiffContext *s, AVFrame *p,
455  const uint8_t *src, int lnum)
456 {
457  int i, j, k;
458  int w = (s->width - 1) / s->subsampling[0] + 1;
459  uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
460  uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
461  if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
462  for (i = 0; i < w; i++) {
463  for (j = 0; j < s->subsampling[1]; j++)
464  for (k = 0; k < s->subsampling[0]; k++)
465  p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
466  FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++;
467  *pu++ = *src++;
468  *pv++ = *src++;
469  }
470  }else{
471  for (i = 0; i < w; i++) {
472  for (j = 0; j < s->subsampling[1]; j++)
473  for (k = 0; k < s->subsampling[0]; k++)
474  p->data[0][(lnum + j) * p->linesize[0] +
475  i * s->subsampling[0] + k] = *src++;
476  *pu++ = *src++;
477  *pv++ = *src++;
478  }
479  }
480 }
481 
482 #if CONFIG_ZLIB
483 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
484  int size)
485 {
486  z_stream zstream = { 0 };
487  int zret;
488 
489  zstream.next_in = src;
490  zstream.avail_in = size;
491  zstream.next_out = dst;
492  zstream.avail_out = *len;
493  zret = inflateInit(&zstream);
494  if (zret != Z_OK) {
495  av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
496  return zret;
497  }
498  zret = inflate(&zstream, Z_SYNC_FLUSH);
499  inflateEnd(&zstream);
500  *len = zstream.total_out;
501  return zret == Z_STREAM_END ? Z_OK : zret;
502 }
503 
504 static int tiff_unpack_zlib(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
505  const uint8_t *src, int size, int width, int lines,
506  int strip_start, int is_yuv)
507 {
508  uint8_t *zbuf;
509  unsigned long outlen;
510  int ret, line;
511  outlen = width * lines;
512  zbuf = av_malloc(outlen);
513  if (!zbuf)
514  return AVERROR(ENOMEM);
515  if (s->fill_order) {
516  if ((ret = deinvert_buffer(s, src, size)) < 0) {
517  av_free(zbuf);
518  return ret;
519  }
520  src = s->deinvert_buf;
521  }
522  ret = tiff_uncompress(zbuf, &outlen, src, size);
523  if (ret != Z_OK) {
524  av_log(s->avctx, AV_LOG_ERROR,
525  "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
526  (unsigned long)width * lines, ret);
527  av_free(zbuf);
528  return AVERROR_UNKNOWN;
529  }
530  src = zbuf;
531  for (line = 0; line < lines; line++) {
532  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
533  horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
534  } else {
535  memcpy(dst, src, width);
536  }
537  if (is_yuv) {
538  unpack_yuv(s, p, dst, strip_start + line);
539  line += s->subsampling[1] - 1;
540  }
541  dst += stride;
542  src += width;
543  }
544  av_free(zbuf);
545  return 0;
546 }
547 #endif
548 
549 #if CONFIG_LZMA
550 static int tiff_uncompress_lzma(uint8_t *dst, uint64_t *len, const uint8_t *src,
551  int size)
552 {
553  lzma_stream stream = LZMA_STREAM_INIT;
554  lzma_ret ret;
555 
556  stream.next_in = (uint8_t *)src;
557  stream.avail_in = size;
558  stream.next_out = dst;
559  stream.avail_out = *len;
560  ret = lzma_stream_decoder(&stream, UINT64_MAX, 0);
561  if (ret != LZMA_OK) {
562  av_log(NULL, AV_LOG_ERROR, "LZMA init error: %d\n", ret);
563  return ret;
564  }
565  ret = lzma_code(&stream, LZMA_RUN);
566  lzma_end(&stream);
567  *len = stream.total_out;
568  return ret == LZMA_STREAM_END ? LZMA_OK : ret;
569 }
570 
571 static int tiff_unpack_lzma(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
572  const uint8_t *src, int size, int width, int lines,
573  int strip_start, int is_yuv)
574 {
575  uint64_t outlen = width * (uint64_t)lines;
576  int ret, line;
577  uint8_t *buf = av_malloc(outlen);
578  if (!buf)
579  return AVERROR(ENOMEM);
580  if (s->fill_order) {
581  if ((ret = deinvert_buffer(s, src, size)) < 0) {
582  av_free(buf);
583  return ret;
584  }
585  src = s->deinvert_buf;
586  }
587  ret = tiff_uncompress_lzma(buf, &outlen, src, size);
588  if (ret != LZMA_OK) {
589  av_log(s->avctx, AV_LOG_ERROR,
590  "Uncompressing failed (%"PRIu64" of %"PRIu64") with error %d\n", outlen,
591  (uint64_t)width * lines, ret);
592  av_free(buf);
593  return AVERROR_UNKNOWN;
594  }
595  src = buf;
596  for (line = 0; line < lines; line++) {
597  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
598  horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
599  } else {
600  memcpy(dst, src, width);
601  }
602  if (is_yuv) {
603  unpack_yuv(s, p, dst, strip_start + line);
604  line += s->subsampling[1] - 1;
605  }
606  dst += stride;
607  src += width;
608  }
609  av_free(buf);
610  return 0;
611 }
612 #endif
613 
614 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
615  const uint8_t *src, int size, int width, int lines)
616 {
617  int i, ret = 0;
618  int line;
619  uint8_t *src2;
620 
621  av_fast_padded_malloc(&s->fax_buffer, &s->fax_buffer_size, size);
622  src2 = s->fax_buffer;
623 
624  if (!src2) {
625  av_log(s->avctx, AV_LOG_ERROR,
626  "Error allocating temporary buffer\n");
627  return AVERROR(ENOMEM);
628  }
629 
630  if (!s->fill_order) {
631  memcpy(src2, src, size);
632  } else {
633  for (i = 0; i < size; i++)
634  src2[i] = ff_reverse[src[i]];
635  }
636  memset(src2 + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
637  ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
638  s->compr, s->fax_opts);
639  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
640  for (line = 0; line < lines; line++) {
641  horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
642  dst += stride;
643  }
644  return ret;
645 }
646 
648  int tile_byte_count, int dst_x, int dst_y, int w, int h)
649 {
650  TiffContext *s = avctx->priv_data;
651  uint8_t *dst_data, *src_data;
652  uint32_t dst_offset; /* offset from dst buffer in pixels */
653  int is_single_comp, is_u16, pixel_size;
654  int ret;
655 
656  if (tile_byte_count < 0 || tile_byte_count > bytestream2_get_bytes_left(&s->gb))
657  return AVERROR_INVALIDDATA;
658 
659  /* Prepare a packet and send to the MJPEG decoder */
660  av_packet_unref(s->jpkt);
661  s->jpkt->data = (uint8_t*)s->gb.buffer;
662  s->jpkt->size = tile_byte_count;
663 
664  if (s->is_bayer) {
665  MJpegDecodeContext *mjpegdecctx = s->avctx_mjpeg->priv_data;
666  /* We have to set this information here, there is no way to know if a given JPEG is a DNG-embedded
667  image or not from its own data (and we need that information when decoding it). */
668  mjpegdecctx->bayer = 1;
669  }
670 
671  ret = avcodec_send_packet(s->avctx_mjpeg, s->jpkt);
672  if (ret < 0) {
673  av_log(avctx, AV_LOG_ERROR, "Error submitting a packet for decoding\n");
674  return ret;
675  }
676 
677  ret = avcodec_receive_frame(s->avctx_mjpeg, s->jpgframe);
678  if (ret < 0) {
679  av_log(avctx, AV_LOG_ERROR, "JPEG decoding error: %s.\n", av_err2str(ret));
680 
681  /* Normally skip, error if explode */
682  if (avctx->err_recognition & AV_EF_EXPLODE)
683  return AVERROR_INVALIDDATA;
684  else
685  return 0;
686  }
687 
688  is_u16 = (s->bpp > 8);
689 
690  /* Copy the outputted tile's pixels from 'jpgframe' to 'frame' (final buffer) */
691 
692  if (s->jpgframe->width != s->avctx_mjpeg->width ||
693  s->jpgframe->height != s->avctx_mjpeg->height ||
694  s->jpgframe->format != s->avctx_mjpeg->pix_fmt)
695  return AVERROR_INVALIDDATA;
696 
697  /* See dng_blit for explanation */
698  if (s->avctx_mjpeg->width == w * 2 &&
699  s->avctx_mjpeg->height == h / 2 &&
700  s->avctx_mjpeg->pix_fmt == AV_PIX_FMT_GRAY16LE) {
701  is_single_comp = 1;
702  } else if (s->avctx_mjpeg->width >= w &&
703  s->avctx_mjpeg->height >= h &&
704  s->avctx_mjpeg->pix_fmt == (is_u16 ? AV_PIX_FMT_GRAY16 : AV_PIX_FMT_GRAY8)
705  ) {
706  is_single_comp = 0;
707  } else
708  return AVERROR_INVALIDDATA;
709 
710  pixel_size = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
711 
712  if (is_single_comp && !is_u16) {
713  av_log(s->avctx, AV_LOG_ERROR, "DNGs with bpp <= 8 and 1 component are unsupported\n");
714  av_frame_unref(s->jpgframe);
715  return AVERROR_PATCHWELCOME;
716  }
717 
718  dst_offset = dst_x + frame->linesize[0] * dst_y / pixel_size;
719  dst_data = frame->data[0] + dst_offset * pixel_size;
720  src_data = s->jpgframe->data[0];
721 
722  dng_blit(s,
723  dst_data,
724  frame->linesize[0] / pixel_size,
725  src_data,
726  s->jpgframe->linesize[0] / pixel_size,
727  w,
728  h,
729  is_single_comp,
730  is_u16);
731 
732  av_frame_unref(s->jpgframe);
733 
734  return 0;
735 }
736 
738  const uint8_t *src, int size, int strip_start, int lines)
739 {
740  PutByteContext pb;
741  int c, line, pixels, code, ret;
742  const uint8_t *ssrc = src;
743  int width = ((s->width * s->bpp) + 7) >> 3;
745  int is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) &&
746  (desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
747  desc->nb_components >= 3;
748  int is_dng;
749 
750  if (s->planar)
751  width /= s->bppcount;
752 
753  if (size <= 0)
754  return AVERROR_INVALIDDATA;
755 
756  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  if (s->is_bayer) {
773  av_assert0(width == (s->bpp * s->width + 7) >> 3);
774  }
775  av_assert0(!(s->is_bayer && is_yuv));
776  if (p->format == AV_PIX_FMT_GRAY12) {
777  av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, width);
778  if (s->yuv_line == NULL) {
779  av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
780  return AVERROR(ENOMEM);
781  }
782  dst = s->yuv_line;
783  stride = 0;
784  }
785 
786  if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
787 #if CONFIG_ZLIB
788  return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines,
789  strip_start, is_yuv);
790 #else
791  av_log(s->avctx, AV_LOG_ERROR,
792  "zlib support not enabled, "
793  "deflate compression not supported\n");
794  return AVERROR(ENOSYS);
795 #endif
796  }
797  if (s->compr == TIFF_LZMA) {
798 #if CONFIG_LZMA
799  return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
800  strip_start, is_yuv);
801 #else
802  av_log(s->avctx, AV_LOG_ERROR,
803  "LZMA support not enabled\n");
804  return AVERROR(ENOSYS);
805 #endif
806  }
807  if (s->compr == TIFF_LZW) {
808  if (s->fill_order) {
809  if ((ret = deinvert_buffer(s, src, size)) < 0)
810  return ret;
811  ssrc = src = s->deinvert_buf;
812  }
813  if (size > 1 && !src[0] && (src[1]&1)) {
814  av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
815  }
816  if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
817  av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
818  return ret;
819  }
820  for (line = 0; line < lines; line++) {
821  pixels = ff_lzw_decode(s->lzw, dst, width);
822  if (pixels < width) {
823  av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
824  pixels, width);
825  return AVERROR_INVALIDDATA;
826  }
827  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
828  horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
829  if (is_yuv) {
830  unpack_yuv(s, p, dst, strip_start + line);
831  line += s->subsampling[1] - 1;
832  } else if (p->format == AV_PIX_FMT_GRAY12) {
833  unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
834  }
835  dst += stride;
836  }
837  return 0;
838  }
839  if (s->compr == TIFF_CCITT_RLE ||
840  s->compr == TIFF_G3 ||
841  s->compr == TIFF_G4) {
842  if (is_yuv || p->format == AV_PIX_FMT_GRAY12)
843  return AVERROR_INVALIDDATA;
844 
845  return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
846  }
847 
848  bytestream2_init(&s->gb, src, size);
849  bytestream2_init_writer(&pb, dst, is_yuv ? s->yuv_line_size : (stride * lines));
850 
851  is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
852 
853  /* Decode JPEG-encoded DNGs with strips */
854  if (s->compr == TIFF_NEWJPEG && is_dng) {
855  if (s->strips > 1) {
856  av_log(s->avctx, AV_LOG_ERROR, "More than one DNG JPEG strips unsupported\n");
857  return AVERROR_PATCHWELCOME;
858  }
859  if (!s->is_bayer)
860  return AVERROR_PATCHWELCOME;
861  if ((ret = dng_decode_jpeg(s->avctx, p, s->stripsize, 0, 0, s->width, s->height)) < 0)
862  return ret;
863  return 0;
864  }
865 
866  if (is_dng && stride == 0)
867  return AVERROR_INVALIDDATA;
868 
869  for (line = 0; line < lines; line++) {
870  if (src - ssrc > size) {
871  av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
872  return AVERROR_INVALIDDATA;
873  }
874 
875  if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb))
876  break;
877  bytestream2_seek_p(&pb, stride * line, SEEK_SET);
878  switch (s->compr) {
879  case TIFF_RAW:
880  if (ssrc + size - src < width)
881  return AVERROR_INVALIDDATA;
882 
883  if (!s->fill_order) {
884  horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 || s->is_bayer),
885  dst, 1, src, 0, width, 0);
886  } else {
887  int i;
888  for (i = 0; i < width; i++)
889  dst[i] = ff_reverse[src[i]];
890  }
891 
892  /* Color processing for DNG images with uncompressed strips (non-tiled) */
893  if (is_dng) {
894  int is_u16, pixel_size_bytes, pixel_size_bits, elements;
895 
896  is_u16 = (s->bpp / s->bppcount > 8);
897  pixel_size_bits = (is_u16 ? 16 : 8);
898  pixel_size_bytes = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
899 
900  elements = width / pixel_size_bytes * pixel_size_bits / s->bpp * s->bppcount; // need to account for [1, 16] bpp
901  av_assert0 (elements * pixel_size_bytes <= FFABS(stride));
902  dng_blit(s,
903  dst,
904  0, // no stride, only 1 line
905  dst,
906  0, // no stride, only 1 line
907  elements,
908  1,
909  0, // single-component variation is only preset in JPEG-encoded DNGs
910  is_u16);
911  }
912 
913  src += width;
914  break;
915  case TIFF_PACKBITS:
916  for (pixels = 0; pixels < width;) {
917  if (ssrc + size - src < 2) {
918  av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
919  return AVERROR_INVALIDDATA;
920  }
921  code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
922  if (code >= 0) {
923  code++;
924  if (pixels + code > width ||
925  ssrc + size - src < code) {
926  av_log(s->avctx, AV_LOG_ERROR,
927  "Copy went out of bounds\n");
928  return AVERROR_INVALIDDATA;
929  }
930  horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
931  dst, 1, src, 0, code, pixels);
932  src += code;
933  pixels += code;
934  } else if (code != -128) { // -127..-1
935  code = (-code) + 1;
936  if (pixels + code > width) {
937  av_log(s->avctx, AV_LOG_ERROR,
938  "Run went out of bounds\n");
939  return AVERROR_INVALIDDATA;
940  }
941  c = *src++;
942  horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
943  dst, 0, NULL, c, code, pixels);
944  pixels += code;
945  }
946  }
947  if (s->fill_order) {
948  int i;
949  for (i = 0; i < width; i++)
950  dst[i] = ff_reverse[dst[i]];
951  }
952  break;
953  }
954  if (is_yuv) {
955  unpack_yuv(s, p, dst, strip_start + line);
956  line += s->subsampling[1] - 1;
957  } else if (p->format == AV_PIX_FMT_GRAY12) {
958  unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
959  }
960  dst += stride;
961  }
962  return 0;
963 }
964 
966  const AVPacket *avpkt)
967 {
968  TiffContext *s = avctx->priv_data;
969  int tile_idx;
970  int tile_offset_offset, tile_offset;
971  int tile_byte_count_offset, tile_byte_count;
972  int tile_count_x, tile_count_y;
973  int tile_width, tile_length;
974  int has_width_leftover, has_height_leftover;
975  int tile_x = 0, tile_y = 0;
976  int pos_x = 0, pos_y = 0;
977  int ret;
978 
979  if (s->tile_width <= 0 || s->tile_length <= 0)
980  return AVERROR_INVALIDDATA;
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 < tile_count_x * tile_count_y; 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 */
1033  frame->key_frame = 1;
1034 
1035  return avpkt->size;
1036 }
1037 
1039 {
1040  int ret;
1041  int create_gray_palette = 0;
1042 
1043  // make sure there is no aliasing in the following switch
1044  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  switch (s->planar * 1000 + s->bpp * 10 + s->bppcount + s->is_bayer * 10000) {
1052  case 11:
1053  if (!s->palette_is_set) {
1054  s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
1055  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  case 243:
1114  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  s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
1133  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  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  if (s->width != s->avctx->width || s->height != s->avctx->height) {
1191  ret = ff_set_dimensions(s->avctx, s->width, s->height);
1192  if (ret < 0)
1193  return ret;
1194  }
1195  if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
1196  return ret;
1197  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  return 0;
1209 }
1210 
1211 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
1212 {
1213  int offset = tag == TIFF_YRES ? 2 : 0;
1214  s->res[offset++] = num;
1215  s->res[offset] = den;
1216  if (s->res[0] && s->res[1] && s->res[2] && s->res[3]) {
1217  uint64_t num = s->res[2] * (uint64_t)s->res[1];
1218  uint64_t den = s->res[0] * (uint64_t)s->res[3];
1219  if (num > INT64_MAX || den > INT64_MAX) {
1220  num = num >> 1;
1221  den = den >> 1;
1222  }
1223  av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den,
1224  num, den, INT32_MAX);
1225  if (!s->avctx->sample_aspect_ratio.den)
1226  s->avctx->sample_aspect_ratio = (AVRational) {0, 1};
1227  }
1228 }
1229 
1231 {
1232  AVFrameSideData *sd;
1233  GetByteContext gb_temp;
1234  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  ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
1241  if (ret < 0) {
1242  goto end;
1243  }
1244  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  if (tag != TIFF_STRIP_SIZE)
1249  s->last_tag = tag;
1250 
1251  off = bytestream2_tell(&s->gb);
1252  if (count == 1) {
1253  switch (type) {
1254  case TIFF_BYTE:
1255  case TIFF_SHORT:
1256  case TIFF_LONG:
1257  value = ff_tget(&s->gb, type, s->le);
1258  break;
1259  case TIFF_RATIONAL:
1260  value = ff_tget(&s->gb, TIFF_LONG, s->le);
1261  value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
1262  if (!value2) {
1263  av_log(s->avctx, AV_LOG_ERROR, "Invalid denominator in rational\n");
1264  return AVERROR_INVALIDDATA;
1265  }
1266 
1267  break;
1268  case TIFF_STRING:
1269  if (count <= 4) {
1270  break;
1271  }
1272  default:
1273  value = UINT_MAX;
1274  }
1275  }
1276 
1277  switch (tag) {
1278  case TIFF_SUBFILE:
1279  s->is_thumbnail = (value != 0);
1280  break;
1281  case TIFF_WIDTH:
1282  s->width = value;
1283  break;
1284  case TIFF_HEIGHT:
1285  s->height = value;
1286  break;
1287  case TIFF_BPP:
1288  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  s->bppcount = count;
1295  if (count == 1)
1296  s->bpp = value;
1297  else {
1298  switch (type) {
1299  case TIFF_BYTE:
1300  case TIFF_SHORT:
1301  case TIFF_LONG:
1302  s->bpp = 0;
1303  if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
1304  return AVERROR_INVALIDDATA;
1305  for (i = 0; i < count; i++)
1306  s->bpp += ff_tget(&s->gb, type, s->le);
1307  break;
1308  default:
1309  s->bpp = -1;
1310  }
1311  }
1312  break;
1314  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  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  if (s->bppcount == 1)
1325  s->bpp *= value;
1326  s->bppcount = value;
1327  break;
1328  case TIFF_COMPR:
1329  s->compr = value;
1330  av_log(s->avctx, AV_LOG_DEBUG, "compression: %d\n", s->compr);
1331  s->predictor = 0;
1332  switch (s->compr) {
1333  case TIFF_RAW:
1334  case TIFF_PACKBITS:
1335  case TIFF_LZW:
1336  case TIFF_CCITT_RLE:
1337  break;
1338  case TIFF_G3:
1339  case TIFF_G4:
1340  s->fax_opts = 0;
1341  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  break;
1367  case TIFF_ROWSPERSTRIP:
1368  if (!value || (type == TIFF_LONG && value == UINT_MAX))
1369  value = s->height;
1370  s->rps = FFMIN(value, s->height);
1371  break;
1372  case TIFF_STRIP_OFFS:
1373  if (count == 1) {
1374  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  s->strippos = 0;
1380  s->stripoff = value;
1381  } else
1382  s->strippos = off;
1383  s->strips = count;
1384  if (s->strips == 1)
1385  s->rps = s->height;
1386  s->sot = type;
1387  break;
1388  case TIFF_STRIP_SIZE:
1389  if (count == 1) {
1390  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  s->stripsizesoff = 0;
1396  s->stripsize = value;
1397  s->strips = 1;
1398  } else {
1399  s->stripsizesoff = off;
1400  }
1401  s->strips = count;
1402  s->sstype = type;
1403  break;
1404  case TIFF_XRES:
1405  case TIFF_YRES:
1406  set_sar(s, tag, value, value2);
1407  break;
1408  case TIFF_TILE_OFFSETS:
1409  s->tile_offsets_offset = off;
1410  s->is_tiled = 1;
1411  break;
1412  case TIFF_TILE_BYTE_COUNTS:
1413  s->tile_byte_counts_offset = off;
1414  break;
1415  case TIFF_TILE_LENGTH:
1416  s->tile_length = value;
1417  break;
1418  case TIFF_TILE_WIDTH:
1419  s->tile_width = value;
1420  break;
1421  case TIFF_PREDICTOR:
1422  s->predictor = value;
1423  break;
1424  case TIFF_SUB_IFDS:
1425  if (count == 1)
1426  s->sub_ifd = value;
1427  else if (count > 1)
1428  s->sub_ifd = ff_tget(&s->gb, TIFF_LONG, s->le); /** Only get the first SubIFD */
1429  break;
1431  if (count > FF_ARRAY_ELEMS(s->dng_lut))
1432  return AVERROR_INVALIDDATA;
1433  for (int i = 0; i < count; i++)
1434  s->dng_lut[i] = ff_tget(&s->gb, type, s->le);
1435  break;
1436  case DNG_BLACK_LEVEL:
1437  if (count > 1) { /* Use the first value in the pattern (assume they're all the same) */
1438  if (type == TIFF_RATIONAL) {
1439  value = ff_tget(&s->gb, TIFF_LONG, s->le);
1440  value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
1441  if (!value2) {
1442  av_log(s->avctx, AV_LOG_ERROR, "Invalid black level denominator\n");
1443  return AVERROR_INVALIDDATA;
1444  }
1445 
1446  s->black_level = value / value2;
1447  } else
1448  s->black_level = ff_tget(&s->gb, type, s->le);
1449  av_log(s->avctx, AV_LOG_WARNING, "Assuming black level pattern values are identical\n");
1450  } else {
1451  s->black_level = value / value2;
1452  }
1453  break;
1454  case DNG_WHITE_LEVEL:
1455  s->white_level = value;
1456  break;
1457  case TIFF_CFA_PATTERN_DIM:
1458  if (count != 2 || (ff_tget(&s->gb, type, s->le) != 2 &&
1459  ff_tget(&s->gb, type, s->le) != 2)) {
1460  av_log(s->avctx, AV_LOG_ERROR, "CFA Pattern dimensions are not 2x2\n");
1461  return AVERROR_INVALIDDATA;
1462  }
1463  break;
1464  case TIFF_CFA_PATTERN:
1465  s->is_bayer = 1;
1466  s->pattern[0] = ff_tget(&s->gb, type, s->le);
1467  s->pattern[1] = ff_tget(&s->gb, type, s->le);
1468  s->pattern[2] = ff_tget(&s->gb, type, s->le);
1469  s->pattern[3] = ff_tget(&s->gb, type, s->le);
1470  break;
1471  case TIFF_PHOTOMETRIC:
1472  switch (value) {
1475  case TIFF_PHOTOMETRIC_RGB:
1479  case TIFF_PHOTOMETRIC_CFA:
1480  case TIFF_PHOTOMETRIC_LINEAR_RAW: // Used by DNG images
1481  s->photometric = value;
1482  break;
1490  "PhotometricInterpretation 0x%04X",
1491  value);
1492  return AVERROR_PATCHWELCOME;
1493  default:
1494  av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
1495  "unknown\n", value);
1496  return AVERROR_INVALIDDATA;
1497  }
1498  break;
1499  case TIFF_FILL_ORDER:
1500  if (value < 1 || value > 2) {
1501  av_log(s->avctx, AV_LOG_ERROR,
1502  "Unknown FillOrder value %d, trying default one\n", value);
1503  value = 1;
1504  }
1505  s->fill_order = value - 1;
1506  break;
1507  case TIFF_PAL: {
1508  GetByteContext pal_gb[3];
1509  off = type_sizes[type];
1510  if (count / 3 > 256 ||
1511  bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
1512  return AVERROR_INVALIDDATA;
1513 
1514  pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
1515  bytestream2_skip(&pal_gb[1], count / 3 * off);
1516  bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
1517 
1518  off = (type_sizes[type] - 1) << 3;
1519  if (off > 31U) {
1520  av_log(s->avctx, AV_LOG_ERROR, "palette shift %d is out of range\n", off);
1521  return AVERROR_INVALIDDATA;
1522  }
1523 
1524  for (i = 0; i < count / 3; i++) {
1525  uint32_t p = 0xFF000000;
1526  p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
1527  p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
1528  p |= ff_tget(&pal_gb[2], type, s->le) >> off;
1529  s->palette[i] = p;
1530  }
1531  s->palette_is_set = 1;
1532  break;
1533  }
1534  case TIFF_PLANAR:
1535  s->planar = value == 2;
1536  break;
1538  if (count != 2) {
1539  av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n");
1540  return AVERROR_INVALIDDATA;
1541  }
1542  for (i = 0; i < count; i++) {
1543  s->subsampling[i] = ff_tget(&s->gb, type, s->le);
1544  if (s->subsampling[i] <= 0) {
1545  av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]);
1546  s->subsampling[i] = 1;
1547  return AVERROR_INVALIDDATA;
1548  }
1549  }
1550  break;
1551  case TIFF_T4OPTIONS:
1552  if (s->compr == TIFF_G3)
1553  s->fax_opts = value;
1554  break;
1555  case TIFF_T6OPTIONS:
1556  if (s->compr == TIFF_G4)
1557  s->fax_opts = value;
1558  break;
1559 #define ADD_METADATA(count, name, sep)\
1560  if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
1561  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
1562  goto end;\
1563  }
1565  ADD_METADATA(count, "ModelPixelScaleTag", NULL);
1566  break;
1568  ADD_METADATA(count, "ModelTransformationTag", NULL);
1569  break;
1570  case TIFF_MODEL_TIEPOINT:
1571  ADD_METADATA(count, "ModelTiepointTag", NULL);
1572  break;
1574  if (s->geotag_count) {
1575  avpriv_request_sample(s->avctx, "Multiple geo key directories");
1576  return AVERROR_INVALIDDATA;
1577  }
1578  ADD_METADATA(1, "GeoTIFF_Version", NULL);
1579  ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
1580  s->geotag_count = ff_tget_short(&s->gb, s->le);
1581  if (s->geotag_count > count / 4 - 1) {
1582  s->geotag_count = count / 4 - 1;
1583  av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
1584  }
1585  if ( bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4
1586  || s->geotag_count == 0) {
1587  s->geotag_count = 0;
1588  return -1;
1589  }
1590  s->geotags = av_mallocz_array(s->geotag_count, sizeof(TiffGeoTag));
1591  if (!s->geotags) {
1592  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1593  s->geotag_count = 0;
1594  goto end;
1595  }
1596  for (i = 0; i < s->geotag_count; i++) {
1597  s->geotags[i].key = ff_tget_short(&s->gb, s->le);
1598  s->geotags[i].type = ff_tget_short(&s->gb, s->le);
1599  s->geotags[i].count = ff_tget_short(&s->gb, s->le);
1600 
1601  if (!s->geotags[i].type)
1602  s->geotags[i].val = get_geokey_val(s->geotags[i].key, ff_tget_short(&s->gb, s->le));
1603  else
1604  s->geotags[i].offset = ff_tget_short(&s->gb, s->le);
1605  }
1606  break;
1608  if (count >= INT_MAX / sizeof(int64_t))
1609  return AVERROR_INVALIDDATA;
1610  if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
1611  return AVERROR_INVALIDDATA;
1612  dp = av_malloc_array(count, sizeof(double));
1613  if (!dp) {
1614  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1615  goto end;
1616  }
1617  for (i = 0; i < count; i++)
1618  dp[i] = ff_tget_double(&s->gb, s->le);
1619  for (i = 0; i < s->geotag_count; i++) {
1620  if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
1621  if (s->geotags[i].count == 0
1622  || s->geotags[i].offset + s->geotags[i].count > count) {
1623  av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1624  } else if (s->geotags[i].val) {
1625  av_log(s->avctx, AV_LOG_WARNING, "Duplicate GeoTIFF key %d\n", s->geotags[i].key);
1626  } else {
1627  char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
1628  if (!ap) {
1629  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1630  av_freep(&dp);
1631  return AVERROR(ENOMEM);
1632  }
1633  s->geotags[i].val = ap;
1634  }
1635  }
1636  }
1637  av_freep(&dp);
1638  break;
1639  case TIFF_GEO_ASCII_PARAMS:
1640  pos = bytestream2_tell(&s->gb);
1641  for (i = 0; i < s->geotag_count; i++) {
1642  if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
1643  if (s->geotags[i].count == 0
1644  || s->geotags[i].offset + s->geotags[i].count > count) {
1645  av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1646  } else {
1647  char *ap;
1648 
1649  bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
1650  if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
1651  return AVERROR_INVALIDDATA;
1652  if (s->geotags[i].val)
1653  return AVERROR_INVALIDDATA;
1654  ap = av_malloc(s->geotags[i].count);
1655  if (!ap) {
1656  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1657  return AVERROR(ENOMEM);
1658  }
1659  bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
1660  ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
1661  s->geotags[i].val = ap;
1662  }
1663  }
1664  }
1665  break;
1666  case TIFF_ICC_PROFILE:
1667  gb_temp = s->gb;
1668  bytestream2_seek(&gb_temp, SEEK_SET, off);
1669 
1670  if (bytestream2_get_bytes_left(&gb_temp) < count)
1671  return AVERROR_INVALIDDATA;
1672 
1674  if (!sd)
1675  return AVERROR(ENOMEM);
1676 
1677  bytestream2_get_bufferu(&gb_temp, sd->data, count);
1678  break;
1679  case TIFF_ARTIST:
1680  ADD_METADATA(count, "artist", NULL);
1681  break;
1682  case TIFF_COPYRIGHT:
1683  ADD_METADATA(count, "copyright", NULL);
1684  break;
1685  case TIFF_DATE:
1686  ADD_METADATA(count, "date", NULL);
1687  break;
1688  case TIFF_DOCUMENT_NAME:
1689  ADD_METADATA(count, "document_name", NULL);
1690  break;
1691  case TIFF_HOST_COMPUTER:
1692  ADD_METADATA(count, "computer", NULL);
1693  break;
1695  ADD_METADATA(count, "description", NULL);
1696  break;
1697  case TIFF_MAKE:
1698  ADD_METADATA(count, "make", NULL);
1699  break;
1700  case TIFF_MODEL:
1701  ADD_METADATA(count, "model", NULL);
1702  break;
1703  case TIFF_PAGE_NAME:
1704  ADD_METADATA(count, "page_name", NULL);
1705  break;
1706  case TIFF_PAGE_NUMBER:
1707  ADD_METADATA(count, "page_number", " / ");
1708  // need to seek back to re-read the page number
1709  bytestream2_seek(&s->gb, -count * sizeof(uint16_t), SEEK_CUR);
1710  // read the page number
1711  s->cur_page = ff_tget(&s->gb, TIFF_SHORT, s->le);
1712  // get back to where we were before the previous seek
1713  bytestream2_seek(&s->gb, count * sizeof(uint16_t) - sizeof(uint16_t), SEEK_CUR);
1714  break;
1715  case TIFF_SOFTWARE_NAME:
1716  ADD_METADATA(count, "software", NULL);
1717  break;
1718  case DNG_VERSION:
1719  if (count == 4) {
1720  unsigned int ver[4];
1721  ver[0] = ff_tget(&s->gb, type, s->le);
1722  ver[1] = ff_tget(&s->gb, type, s->le);
1723  ver[2] = ff_tget(&s->gb, type, s->le);
1724  ver[3] = ff_tget(&s->gb, type, s->le);
1725 
1726  av_log(s->avctx, AV_LOG_DEBUG, "DNG file, version %u.%u.%u.%u\n",
1727  ver[0], ver[1], ver[2], ver[3]);
1728 
1730  }
1731  break;
1732  case CINEMADNG_TIME_CODES:
1733  case CINEMADNG_FRAME_RATE:
1734  case CINEMADNG_T_STOP:
1735  case CINEMADNG_REEL_NAME:
1738  break;
1739  default:
1740  if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1741  av_log(s->avctx, AV_LOG_ERROR,
1742  "Unknown or unsupported tag %d/0x%0X\n",
1743  tag, tag);
1744  return AVERROR_INVALIDDATA;
1745  }
1746  }
1747 end:
1748  if (s->bpp > 64U) {
1749  av_log(s->avctx, AV_LOG_ERROR,
1750  "This format is not supported (bpp=%d, %d components)\n",
1751  s->bpp, count);
1752  s->bpp = 0;
1753  return AVERROR_INVALIDDATA;
1754  }
1755  bytestream2_seek(&s->gb, start, SEEK_SET);
1756  return 0;
1757 }
1758 
1759 static int decode_frame(AVCodecContext *avctx,
1760  void *data, int *got_frame, AVPacket *avpkt)
1761 {
1762  TiffContext *const s = avctx->priv_data;
1763  AVFrame *const p = data;
1764  ThreadFrame frame = { .f = data };
1765  unsigned off, last_off = 0;
1766  int le, ret, plane, planes;
1767  int i, j, entries, stride;
1768  unsigned soff, ssize;
1769  uint8_t *dst;
1770  GetByteContext stripsizes;
1771  GetByteContext stripdata;
1772  int retry_for_subifd, retry_for_page;
1773  int is_dng;
1774  int has_tile_bits, has_strip_bits;
1775 
1776  bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1777 
1778  // parse image header
1779  if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
1780  av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
1781  return ret;
1782  } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1783  av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1784  return AVERROR_INVALIDDATA;
1785  }
1786  s->le = le;
1787  // TIFF_BPP is not a required tag and defaults to 1
1788 
1789  s->tiff_type = TIFF_TYPE_TIFF;
1790 again:
1791  s->is_thumbnail = 0;
1792  s->bppcount = s->bpp = 1;
1793  s->photometric = TIFF_PHOTOMETRIC_NONE;
1794  s->compr = TIFF_RAW;
1795  s->fill_order = 0;
1796  s->white_level = 0;
1797  s->is_bayer = 0;
1798  s->is_tiled = 0;
1799  s->is_jpeg = 0;
1800  s->cur_page = 0;
1801  s->last_tag = 0;
1802 
1803  for (i = 0; i < 65536; i++)
1804  s->dng_lut[i] = i;
1805 
1806  free_geotags(s);
1807 
1808  // Reset these offsets so we can tell if they were set this frame
1809  s->stripsizesoff = s->strippos = 0;
1810  /* parse image file directory */
1811  bytestream2_seek(&s->gb, off, SEEK_SET);
1812  entries = ff_tget_short(&s->gb, le);
1813  if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1814  return AVERROR_INVALIDDATA;
1815  for (i = 0; i < entries; i++) {
1816  if ((ret = tiff_decode_tag(s, p)) < 0)
1817  return ret;
1818  }
1819 
1820  if (s->get_thumbnail && !s->is_thumbnail) {
1821  av_log(avctx, AV_LOG_INFO, "No embedded thumbnail present\n");
1822  return AVERROR_EOF;
1823  }
1824 
1825  /** whether we should process this IFD's SubIFD */
1826  retry_for_subifd = s->sub_ifd && (s->get_subimage || (!s->get_thumbnail && s->is_thumbnail));
1827  /** whether we should process this multi-page IFD's next page */
1828  retry_for_page = s->get_page && s->cur_page + 1 < s->get_page; // get_page is 1-indexed
1829 
1830  if (retry_for_page) {
1831  // set offset to the next IFD
1832  off = ff_tget_long(&s->gb, le);
1833  } else if (retry_for_subifd) {
1834  // set offset to the SubIFD
1835  off = s->sub_ifd;
1836  }
1837 
1838  if (retry_for_subifd || retry_for_page) {
1839  if (!off) {
1840  av_log(avctx, AV_LOG_ERROR, "Requested entry not found\n");
1841  return AVERROR_INVALIDDATA;
1842  }
1843  if (off <= last_off) {
1844  avpriv_request_sample(s->avctx, "non increasing IFD offset");
1845  return AVERROR_INVALIDDATA;
1846  }
1847  last_off = off;
1848  if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1849  av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1850  return AVERROR_INVALIDDATA;
1851  }
1852  s->sub_ifd = 0;
1853  goto again;
1854  }
1855 
1856  /* At this point we've decided on which (Sub)IFD to process */
1857 
1858  is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
1859 
1860  for (i = 0; i<s->geotag_count; i++) {
1861  const char *keyname = get_geokey_name(s->geotags[i].key);
1862  if (!keyname) {
1863  av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
1864  continue;
1865  }
1866  if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
1867  av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
1868  continue;
1869  }
1870  ret = av_dict_set(&p->metadata, keyname, s->geotags[i].val, 0);
1871  if (ret<0) {
1872  av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
1873  return ret;
1874  }
1875  }
1876 
1877  if (is_dng) {
1878  int bps;
1879 
1880  if (s->bpp % s->bppcount)
1881  return AVERROR_INVALIDDATA;
1882  bps = s->bpp / s->bppcount;
1883  if (bps < 8 || bps > 32)
1884  return AVERROR_INVALIDDATA;
1885 
1886  if (s->white_level == 0)
1887  s->white_level = (1LL << bps) - 1; /* Default value as per the spec */
1888 
1889  if (s->white_level <= s->black_level) {
1890  av_log(avctx, AV_LOG_ERROR, "BlackLevel (%"PRId32") must be less than WhiteLevel (%"PRId32")\n",
1891  s->black_level, s->white_level);
1892  return AVERROR_INVALIDDATA;
1893  }
1894 
1895  if (s->planar)
1896  return AVERROR_PATCHWELCOME;
1897  }
1898 
1899  if (!s->is_tiled && !s->strippos && !s->stripoff) {
1900  av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
1901  return AVERROR_INVALIDDATA;
1902  }
1903 
1904  has_tile_bits = s->is_tiled || s->tile_byte_counts_offset || s->tile_offsets_offset || s->tile_width || s->tile_length;
1905  has_strip_bits = s->strippos || s->strips || s->stripoff || s->rps || s->sot || s->sstype || s->stripsize || s->stripsizesoff;
1906 
1907  if (has_tile_bits && has_strip_bits) {
1908  int tiled_dng = s->is_tiled && is_dng;
1909  av_log(avctx, tiled_dng ? AV_LOG_WARNING : AV_LOG_ERROR, "Tiled TIFF is not allowed to strip\n");
1910  if (!tiled_dng)
1911  return AVERROR_INVALIDDATA;
1912  }
1913 
1914  /* now we have the data and may start decoding */
1915  if ((ret = init_image(s, &frame)) < 0)
1916  return ret;
1917 
1918  if (!s->is_tiled || has_strip_bits) {
1919  if (s->strips == 1 && !s->stripsize) {
1920  av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
1921  s->stripsize = avpkt->size - s->stripoff;
1922  }
1923 
1924  if (s->stripsizesoff) {
1925  if (s->stripsizesoff >= (unsigned)avpkt->size)
1926  return AVERROR_INVALIDDATA;
1927  bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
1928  avpkt->size - s->stripsizesoff);
1929  }
1930  if (s->strippos) {
1931  if (s->strippos >= (unsigned)avpkt->size)
1932  return AVERROR_INVALIDDATA;
1933  bytestream2_init(&stripdata, avpkt->data + s->strippos,
1934  avpkt->size - s->strippos);
1935  }
1936 
1937  if (s->rps <= 0 || s->rps % s->subsampling[1]) {
1938  av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1939  return AVERROR_INVALIDDATA;
1940  }
1941  }
1942 
1943  if (s->photometric == TIFF_PHOTOMETRIC_LINEAR_RAW ||
1944  s->photometric == TIFF_PHOTOMETRIC_CFA) {
1946  } else if (s->photometric == TIFF_PHOTOMETRIC_BLACK_IS_ZERO) {
1948  }
1949 
1950  /* Handle DNG images with JPEG-compressed tiles */
1951 
1952  if (is_dng && s->is_tiled) {
1953  if (!s->is_jpeg) {
1954  avpriv_report_missing_feature(avctx, "DNG uncompressed tiled images");
1955  return AVERROR_PATCHWELCOME;
1956  } else if (!s->is_bayer) {
1957  avpriv_report_missing_feature(avctx, "DNG JPG-compressed tiled non-bayer-encoded images");
1958  return AVERROR_PATCHWELCOME;
1959  } else {
1960  if ((ret = dng_decode_tiles(avctx, (AVFrame*)data, avpkt)) > 0)
1961  *got_frame = 1;
1962  return ret;
1963  }
1964  }
1965 
1966  /* Handle TIFF images and DNG images with uncompressed strips (non-tiled) */
1967 
1968  planes = s->planar ? s->bppcount : 1;
1969  for (plane = 0; plane < planes; plane++) {
1970  uint8_t *five_planes = NULL;
1971  int remaining = avpkt->size;
1972  int decoded_height;
1973  stride = p->linesize[plane];
1974  dst = p->data[plane];
1975  if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
1976  s->avctx->pix_fmt == AV_PIX_FMT_RGBA) {
1977  stride = stride * 5 / 4;
1978  five_planes =
1979  dst = av_malloc(stride * s->height);
1980  if (!dst)
1981  return AVERROR(ENOMEM);
1982  }
1983  for (i = 0; i < s->height; i += s->rps) {
1984  if (i)
1985  dst += s->rps * stride;
1986  if (s->stripsizesoff)
1987  ssize = ff_tget(&stripsizes, s->sstype, le);
1988  else
1989  ssize = s->stripsize;
1990 
1991  if (s->strippos)
1992  soff = ff_tget(&stripdata, s->sot, le);
1993  else
1994  soff = s->stripoff;
1995 
1996  if (soff > avpkt->size || ssize > avpkt->size - soff || ssize > remaining) {
1997  av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
1998  av_freep(&five_planes);
1999  return AVERROR_INVALIDDATA;
2000  }
2001  remaining -= ssize;
2002  if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i,
2003  FFMIN(s->rps, s->height - i))) < 0) {
2004  if (avctx->err_recognition & AV_EF_EXPLODE) {
2005  av_freep(&five_planes);
2006  return ret;
2007  }
2008  break;
2009  }
2010  }
2011  decoded_height = FFMIN(i, s->height);
2012 
2013  if (s->predictor == 2) {
2014  if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
2015  av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported");
2016  return AVERROR_PATCHWELCOME;
2017  }
2018  dst = five_planes ? five_planes : p->data[plane];
2019  soff = s->bpp >> 3;
2020  if (s->planar)
2021  soff = FFMAX(soff / s->bppcount, 1);
2022  ssize = s->width * soff;
2023  if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
2024  s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
2025  s->avctx->pix_fmt == AV_PIX_FMT_GRAY16LE ||
2026  s->avctx->pix_fmt == AV_PIX_FMT_YA16LE ||
2027  s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
2028  s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
2029  for (i = 0; i < decoded_height; i++) {
2030  for (j = soff; j < ssize; j += 2)
2031  AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
2032  dst += stride;
2033  }
2034  } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
2035  s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
2036  s->avctx->pix_fmt == AV_PIX_FMT_GRAY16BE ||
2037  s->avctx->pix_fmt == AV_PIX_FMT_YA16BE ||
2038  s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
2039  s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
2040  for (i = 0; i < decoded_height; i++) {
2041  for (j = soff; j < ssize; j += 2)
2042  AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
2043  dst += stride;
2044  }
2045  } else {
2046  for (i = 0; i < decoded_height; i++) {
2047  for (j = soff; j < ssize; j++)
2048  dst[j] += dst[j - soff];
2049  dst += stride;
2050  }
2051  }
2052  }
2053 
2054  if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) {
2055  int c = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255);
2056  dst = p->data[plane];
2057  for (i = 0; i < s->height; i++) {
2058  for (j = 0; j < stride; j++)
2059  dst[j] = c - dst[j];
2060  dst += stride;
2061  }
2062  }
2063 
2064  if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2065  (s->avctx->pix_fmt == AV_PIX_FMT_RGB0 || s->avctx->pix_fmt == AV_PIX_FMT_RGBA)) {
2066  int x = s->avctx->pix_fmt == AV_PIX_FMT_RGB0 ? 4 : 5;
2067  uint8_t *src = five_planes ? five_planes : p->data[plane];
2068  dst = p->data[plane];
2069  for (i = 0; i < s->height; i++) {
2070  for (j = 0; j < s->width; j++) {
2071  int k = 255 - src[x * j + 3];
2072  int r = (255 - src[x * j ]) * k;
2073  int g = (255 - src[x * j + 1]) * k;
2074  int b = (255 - src[x * j + 2]) * k;
2075  dst[4 * j ] = r * 257 >> 16;
2076  dst[4 * j + 1] = g * 257 >> 16;
2077  dst[4 * j + 2] = b * 257 >> 16;
2078  dst[4 * j + 3] = s->avctx->pix_fmt == AV_PIX_FMT_RGBA ? src[x * j + 4] : 255;
2079  }
2080  src += stride;
2081  dst += p->linesize[plane];
2082  }
2083  av_freep(&five_planes);
2084  } else if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2085  s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) {
2086  dst = p->data[plane];
2087  for (i = 0; i < s->height; i++) {
2088  for (j = 0; j < s->width; j++) {
2089  uint64_t k = 65535 - AV_RB16(dst + 8 * j + 6);
2090  uint64_t r = (65535 - AV_RB16(dst + 8 * j )) * k;
2091  uint64_t g = (65535 - AV_RB16(dst + 8 * j + 2)) * k;
2092  uint64_t b = (65535 - AV_RB16(dst + 8 * j + 4)) * k;
2093  AV_WB16(dst + 8 * j , r * 65537 >> 32);
2094  AV_WB16(dst + 8 * j + 2, g * 65537 >> 32);
2095  AV_WB16(dst + 8 * j + 4, b * 65537 >> 32);
2096  AV_WB16(dst + 8 * j + 6, 65535);
2097  }
2098  dst += p->linesize[plane];
2099  }
2100  }
2101  }
2102 
2103  if (s->planar && s->bppcount > 2) {
2104  FFSWAP(uint8_t*, p->data[0], p->data[2]);
2105  FFSWAP(int, p->linesize[0], p->linesize[2]);
2106  FFSWAP(uint8_t*, p->data[0], p->data[1]);
2107  FFSWAP(int, p->linesize[0], p->linesize[1]);
2108  }
2109 
2110  if (s->is_bayer && s->white_level && s->bpp == 16 && !is_dng) {
2111  uint16_t *dst = (uint16_t *)p->data[0];
2112  for (i = 0; i < s->height; i++) {
2113  for (j = 0; j < s->width; j++)
2114  dst[j] = FFMIN((dst[j] / (float)s->white_level) * 65535, 65535);
2115  dst += stride / 2;
2116  }
2117  }
2118 
2119  *got_frame = 1;
2120 
2121  return avpkt->size;
2122 }
2123 
2125 {
2126  TiffContext *s = avctx->priv_data;
2127  const AVCodec *codec;
2128  int ret;
2129 
2130  s->width = 0;
2131  s->height = 0;
2132  s->subsampling[0] =
2133  s->subsampling[1] = 1;
2134  s->avctx = avctx;
2135  ff_lzw_decode_open(&s->lzw);
2136  if (!s->lzw)
2137  return AVERROR(ENOMEM);
2139 
2140  /* Allocate JPEG frame */
2141  s->jpgframe = av_frame_alloc();
2142  s->jpkt = av_packet_alloc();
2143  if (!s->jpgframe || !s->jpkt)
2144  return AVERROR(ENOMEM);
2145 
2146  /* Prepare everything needed for JPEG decoding */
2148  if (!codec)
2149  return AVERROR_BUG;
2150  s->avctx_mjpeg = avcodec_alloc_context3(codec);
2151  if (!s->avctx_mjpeg)
2152  return AVERROR(ENOMEM);
2153  s->avctx_mjpeg->flags = avctx->flags;
2154  s->avctx_mjpeg->flags2 = avctx->flags2;
2155  s->avctx_mjpeg->dct_algo = avctx->dct_algo;
2156  s->avctx_mjpeg->idct_algo = avctx->idct_algo;
2157  s->avctx_mjpeg->max_pixels = avctx->max_pixels;
2158  ret = avcodec_open2(s->avctx_mjpeg, codec, NULL);
2159  if (ret < 0) {
2160  return ret;
2161  }
2162 
2163  return 0;
2164 }
2165 
2166 static av_cold int tiff_end(AVCodecContext *avctx)
2167 {
2168  TiffContext *const s = avctx->priv_data;
2169 
2170  free_geotags(s);
2171 
2172  ff_lzw_decode_close(&s->lzw);
2173  av_freep(&s->deinvert_buf);
2174  s->deinvert_buf_size = 0;
2175  av_freep(&s->yuv_line);
2176  s->yuv_line_size = 0;
2177  av_freep(&s->fax_buffer);
2178  s->fax_buffer_size = 0;
2179  av_frame_free(&s->jpgframe);
2180  av_packet_free(&s->jpkt);
2181  avcodec_free_context(&s->avctx_mjpeg);
2182  return 0;
2183 }
2184 
2185 #define OFFSET(x) offsetof(TiffContext, x)
2186 static const AVOption tiff_options[] = {
2187  { "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 },
2188  { "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 },
2189  { "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 },
2190  { NULL },
2191 };
2192 
2193 static const AVClass tiff_decoder_class = {
2194  .class_name = "TIFF decoder",
2195  .item_name = av_default_item_name,
2196  .option = tiff_options,
2197  .version = LIBAVUTIL_VERSION_INT,
2198 };
2199 
2201  .name = "tiff",
2202  .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
2203  .type = AVMEDIA_TYPE_VIDEO,
2204  .id = AV_CODEC_ID_TIFF,
2205  .priv_data_size = sizeof(TiffContext),
2206  .init = tiff_init,
2207  .close = tiff_end,
2208  .decode = decode_frame,
2209  .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
2211  .priv_class = &tiff_decoder_class,
2212 };
static double val(void *priv, double ch)
Definition: aeval.c:76
Macro definitions for various function/variable attributes.
#define av_always_inline
Definition: attributes.h:45
#define av_cold
Definition: attributes.h:88
uint8_t
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
Libavcodec external API header.
#define AV_EF_EXPLODE
abort decoding on minor error detection
Definition: avcodec.h:1656
#define AV_RL16
Definition: intreadwrite.h:42
#define AV_RB16
Definition: intreadwrite.h:53
#define AV_RL32
Definition: intreadwrite.h:146
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:31
static av_always_inline void bytestream2_init_writer(PutByteContext *p, uint8_t *buf, int buf_size)
Definition: bytestream.h:147
static av_always_inline unsigned int bytestream2_get_bufferu(GetByteContext *g, uint8_t *dst, unsigned int size)
Definition: bytestream.h:277
static av_always_inline int bytestream2_get_bytes_left(GetByteContext *g)
Definition: bytestream.h:158
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
Definition: bytestream.h:137
static av_always_inline void bytestream2_skip(GetByteContext *g, unsigned int size)
Definition: bytestream.h:168
static av_always_inline int bytestream2_seek(GetByteContext *g, int offset, int whence)
Definition: bytestream.h:212
static av_always_inline int bytestream2_seek_p(PutByteContext *p, int offset, int whence)
Definition: bytestream.h:236
static av_always_inline int bytestream2_tell(GetByteContext *g)
Definition: bytestream.h:192
static av_always_inline unsigned int bytestream2_get_eof(PutByteContext *p)
Definition: bytestream.h:332
#define s(width, name)
Definition: cbs_vp9.c:257
#define FFSWAP(type, a, b)
Definition: common.h:108
#define FFMIN(a, b)
Definition: common.h:105
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:254
#define FFMAX(a, b)
Definition: common.h:103
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
#define NULL
Definition: coverity.c:32
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:71
static AVFrame * frame
error code definitions
double value
Definition: eval.c:98
av_cold void ff_ccitt_unpack_init(void)
initialize unpacker code
Definition: faxcompr.c:122
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:396
CCITT Fax Group 3 and 4 decompression.
int
bitstream reader API header.
static int init_get_bits8(GetBitContext *s, const uint8_t *buffer, int byte_size)
Initialize GetBitContext.
Definition: get_bits.h:677
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:379
@ AV_OPT_TYPE_INT
Definition: opt.h:225
@ AV_OPT_TYPE_BOOL
Definition: opt.h:242
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: avcodec.c:144
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:946
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:52
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: codec.h:108
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
Definition: options.c:173
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:188
@ AV_CODEC_ID_TIFF
Definition: codec_id.h:145
@ AV_CODEC_ID_MJPEG
Definition: codec_id.h:56
int avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
Return decoded output data from a decoder.
Definition: decode.c:652
int avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
Supply raw packet data as input to a decoder.
Definition: decode.c:589
#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
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:50
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:75
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:634
AVPacket * av_packet_alloc(void)
Allocate an AVPacket and set its fields to default values.
Definition: avpacket.c:64
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_UNKNOWN
Unknown error, typically from an external library.
Definition: error.h:71
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:50
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
#define AVERROR_EOF
End of file.
Definition: error.h:55
#define av_err2str(errnum)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition: error.h:119
#define AVERROR(e)
Definition: error.h:43
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:553
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:203
AVFrameSideData * av_frame_new_side_data(AVFrame *frame, enum AVFrameSideDataType type, buffer_size_t size)
Add a new side data to a frame.
Definition: frame.c:726
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:190
@ AV_FRAME_DATA_ICC_PROFILE
The data contains an ICC profile as an opaque octet buffer following the format described by ISO 1507...
Definition: frame.h:143
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:215
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:200
#define AV_LOG_INFO
Standard information.
Definition: log.h:205
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:194
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
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
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:253
void * av_mallocz_array(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().
Definition: mem.c:190
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
@ AV_PICTURE_TYPE_I
Intra.
Definition: avutil.h:274
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
for(j=16;j >0;--j)
cl_device_type type
const char * key
misc image utilities
int i
Definition: input.c:407
#define AV_WB16(p, v)
Definition: intreadwrite.h:405
#define AV_WL16(p, v)
Definition: intreadwrite.h:412
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:41
#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:49
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:84
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
const uint8_t ff_reverse[256]
Definition: reverse.c:23
const char * desc
Definition: libsvtav1.c:79
uint8_t w
Definition: llviddspenc.c:39
static const struct @322 planes[]
av_cold void ff_lzw_decode_close(LZWState **p)
Definition: lzw.c:118
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
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
av_cold void ff_lzw_decode_open(LZWState **p)
Definition: lzw.c:113
LZW decoding routines.
@ FF_LZW_TIFF
Definition: lzw.h:39
int stride
Definition: mace.c:144
MJPEG decoder.
uint32_t tag
Definition: movenc.c:1611
unsigned bps
Definition: movenc.c:1612
const char data[16]
Definition: mxf.c:142
AVOptions.
#define AV_OPT_FLAG_DECODING_PARAM
a generic parameter which can be set by the user for demuxing or decoding
Definition: opt.h:279
#define AV_OPT_FLAG_VIDEO_PARAM
Definition: opt.h:281
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:148
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
Definition: pixdesc.h:144
#define AV_PIX_FMT_BAYER_GRBG16
Definition: pixfmt.h:426
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:381
#define AV_PIX_FMT_BAYER_BGGR16
Definition: pixfmt.h:423
#define AV_PIX_FMT_BAYER_RGGB16
Definition: pixfmt.h:424
@ AV_PIX_FMT_BAYER_GBRG8
bayer, GBGB..(odd line), RGRG..(even line), 8-bit samples
Definition: pixfmt.h:262
@ AV_PIX_FMT_GRAY16BE
Y , 16bpp, big-endian.
Definition: pixfmt.h:97
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
@ AV_PIX_FMT_YA16BE
16 bits gray, 16 bits alpha (big-endian)
Definition: pixfmt.h:212
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
@ AV_PIX_FMT_MONOBLACK
Y , 1bpp, 0 is black, 1 is white, in each byte pixels are ordered from the msb to the lsb.
Definition: pixfmt.h:76
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
@ AV_PIX_FMT_YA16LE
16 bits gray, 16 bits alpha (little-endian)
Definition: pixfmt.h:213
@ AV_PIX_FMT_RGB48BE
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
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
@ AV_PIX_FMT_RGBA64BE
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
@ AV_PIX_FMT_RGBA64LE
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
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
@ AV_PIX_FMT_GBRAP16BE
planar GBRA 4:4:4:4 64bpp, big-endian
Definition: pixfmt.h:216
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:93
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
@ AV_PIX_FMT_BAYER_GRBG8
bayer, GRGR..(odd line), BGBG..(even line), 8-bit samples
Definition: pixfmt.h:263
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
@ AV_PIX_FMT_GBRP16BE
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:174
@ AV_PIX_FMT_RGB48LE
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
@ AV_PIX_FMT_RGB0
packed RGB 8:8:8, 32bpp, RGBXRGBX... X=unused/undefined
Definition: pixfmt.h:238
@ AV_PIX_FMT_GRAY16LE
Y , 16bpp, little-endian.
Definition: pixfmt.h:98
@ AV_PIX_FMT_PAL8
8 bits with AV_PIX_FMT_RGB32 palette
Definition: pixfmt.h:77
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
@ AV_PIX_FMT_GBRAP16LE
planar GBRA 4:4:4:4 64bpp, little-endian
Definition: pixfmt.h:217
@ AV_PIX_FMT_YA8
8 bits gray, 8 bits alpha
Definition: pixfmt.h:143
@ AV_PIX_FMT_BAYER_RGGB8
bayer, RGRG..(odd line), GBGB..(even line), 8-bit samples
Definition: pixfmt.h:261
@ AV_PIX_FMT_GBRP16LE
planar GBR 4:4:4 48bpp, little-endian
Definition: pixfmt.h:175
@ AV_PIX_FMT_BAYER_BGGR8
bayer, BGBG..(odd line), GRGR..(even line), 8-bit samples
Definition: pixfmt.h:260
#define AV_PIX_FMT_BAYER_GBRG16
Definition: pixfmt.h:425
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:383
@ AVCOL_TRC_GAMMA22
also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:488
@ AVCOL_TRC_LINEAR
"Linear transfer characteristics"
Definition: pixfmt.h:492
FF_ENABLE_DEPRECATION_WARNINGS int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
const char * name
Definition: qsvenc.c:46
#define pv
Definition: regdef.h:60
static const ElemCat * elements[ELEMENT_COUNT]
Definition: signature.h:566
#define FF_ARRAY_ELEMS(a)
#define snprintf
Definition: snprintf.h:34
static int shift(int a, int b)
Definition: sonic.c:82
const uint8_t * code
Definition: spdifenc.c:413
unsigned int pos
Definition: spdifenc.c:412
Describe the class of an AVClass context structure.
Definition: log.h:67
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
main external API structure.
Definition: avcodec.h:536
int flags2
AV_CODEC_FLAG2_*.
Definition: avcodec.h:623
int64_t max_pixels
The number of pixels per image to maximally accept.
Definition: avcodec.h:2248
int dct_algo
DCT algorithm, see FF_DCT_* below.
Definition: avcodec.h:1706
int idct_algo
IDCT algorithm, see FF_IDCT_* below.
Definition: avcodec.h:1719
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:616
void * priv_data
Definition: avcodec.h:563
int err_recognition
Error recognition; may misdetect some more or less valid parts as errors.
Definition: avcodec.h:1645
AVCodec.
Definition: codec.h:197
const char * name
Name of the codec implementation.
Definition: codec.h:204
Structure to hold side data for an AVFrame.
Definition: frame.h:220
uint8_t * data
Definition: frame.h:222
This structure describes decoded (raw) audio or video data.
Definition: frame.h:318
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:332
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:396
AVDictionary * metadata
metadata.
Definition: frame.h:604
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:349
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:566
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:391
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:401
AVOption.
Definition: opt.h:248
This structure stores compressed data.
Definition: packet.h:346
int size
Definition: packet.h:370
uint8_t * data
Definition: packet.h:369
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
Rational number (pair of numerator and denominator).
Definition: rational.h:58
Definition: lzw.c:46
GetByteContext gb
Definition: tiff.c:57
int le
Definition: tiff.c:73
int planar
Definition: tiff.c:76
int stripsizesoff
Definition: tiff.c:96
int stripsize
Definition: tiff.c:96
AVCodecContext * avctx_mjpeg
Definition: tiff.c:60
AVCodecContext * avctx
Definition: tiff.c:56
unsigned int yuv_line_size
Definition: tiff.c:109
uint32_t res[4]
Definition: tiff.c:81
int tile_width
Definition: tiff.c:102
int fax_opts
Definition: tiff.c:78
enum TiffType tiff_type
Definition: tiff.c:68
int is_thumbnail
Definition: tiff.c:82
int palette_is_set
Definition: tiff.c:72
unsigned last_tag
Definition: tiff.c:83
int subsampling[2]
Definition: tiff.c:77
unsigned int fax_buffer_size
Definition: tiff.c:111
unsigned white_level
Definition: tiff.c:88
int height
Definition: tiff.c:69
uint16_t dng_lut[65536]
Definition: tiff.c:89
int predictor
Definition: tiff.c:79
int tile_length
Definition: tiff.c:102
unsigned int bppcount
Definition: tiff.c:70
uint32_t palette[256]
Definition: tiff.c:71
int strippos
Definition: tiff.c:96
int tile_offsets_offset
Definition: tiff.c:101
AVPacket * jpkt
Definition: tiff.c:61
TiffGeoTag * geotags
Definition: tiff.c:114
int fill_order
Definition: tiff.c:80
uint8_t * yuv_line
Definition: tiff.c:108
AVFrame * jpgframe
Definition: tiff.c:62
uint16_t cur_page
Definition: tiff.c:92
int is_bayer
Definition: tiff.c:85
unsigned black_level
Definition: tiff.c:87
uint8_t pattern[4]
Definition: tiff.c:86
uint32_t sub_ifd
Definition: tiff.c:91
int width
Definition: tiff.c:69
LZWState * lzw
Definition: tiff.c:97
int sstype
Definition: tiff.c:94
int get_subimage
Definition: tiff.c:64
int deinvert_buf_size
Definition: tiff.c:107
int is_tiled
Definition: tiff.c:100
uint8_t * deinvert_buf
Definition: tiff.c:106
int geotag_count
Definition: tiff.c:113
int strips
Definition: tiff.c:94
int stripoff
Definition: tiff.c:96
enum TiffCompr compr
Definition: tiff.c:74
enum TiffPhotometric photometric
Definition: tiff.c:75
int get_thumbnail
Definition: tiff.c:66
int sot
Definition: tiff.c:95
int is_jpeg
Definition: tiff.c:104
int rps
Definition: tiff.c:94
int tile_byte_counts_offset
Definition: tiff.c:101
unsigned int bpp
Definition: tiff.c:70
uint16_t get_page
Definition: tiff.c:65
uint8_t * fax_buffer
Definition: tiff.c:110
Definition: graph2dot.c:48
#define av_free(p)
#define av_malloc_array(a, b)
#define avpriv_request_sample(...)
#define av_freep(p)
#define av_malloc(s)
#define av_log(a,...)
#define src
Definition: vp8dsp.c:255
#define height
#define width
#define ADD_METADATA(count, name, sep)
static const AVOption tiff_options[]
Definition: tiff.c:2186
static int get_geokey_type(int key)
Definition: tiff.c:148
static void unpack_yuv(TiffContext *s, AVFrame *p, const uint8_t *src, int lnum)
Definition: tiff.c:454
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:302
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:280
static int init_image(TiffContext *s, ThreadFrame *frame)
Definition: tiff.c:1038
static av_cold int tiff_end(AVCodecContext *avctx)
Definition: tiff.c:2166
#define RET_GEOKEY(TYPE, array, element)
Definition: tiff.c:133
static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
Definition: tiff.c:1230
static char * doubles2str(double *dp, int count, const char *sep)
Definition: tiff.c:240
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:737
static const char * search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
Definition: tiff.c:163
static char * get_geokey_val(int key, int val)
Definition: tiff.c:172
static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
Definition: tiff.c:1211
static int cmp_id_key(const void *id, const void *k)
Definition: tiff.c:158
static int add_metadata(int count, int type, const char *name, const char *sep, TiffContext *s, AVFrame *frame)
Definition: tiff.c:266
static av_cold int tiff_init(AVCodecContext *avctx)
Definition: tiff.c:2124
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:310
static int dng_decode_tiles(AVCodecContext *avctx, AVFrame *frame, const AVPacket *avpkt)
Definition: tiff.c:965
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:614
static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
Definition: tiff.c:428
static const char * get_geokey_name(int key)
Definition: tiff.c:138
static void unpack_gray(TiffContext *s, AVFrame *p, const uint8_t *src, int lnum, int width, int bpp)
Definition: tiff.c:441
static const AVClass tiff_decoder_class
Definition: tiff.c:2193
static void free_geotags(TiffContext *const s)
Definition: tiff.c:122
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: tiff.c:1759
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:647
#define RET_GEOKEY_VAL(TYPE, array)
#define OFFSET(x)
Definition: tiff.c:2185
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:373
static void tiff_set_type(TiffContext *s, enum TiffType tiff_type)
Definition: tiff.c:117
AVCodec ff_tiff_decoder
Definition: tiff.c:2200
TIFF constants & data structures.
TiffCompr
list of TIFF, TIFF/EP and DNG compression types
Definition: tiff.h:120
@ TIFF_G4
Definition: tiff.h:124
@ TIFF_LZMA
Definition: tiff.h:131
@ TIFF_ADOBE_DEFLATE
Definition: tiff.h:128
@ TIFF_NEWJPEG
Definition: tiff.h:127
@ TIFF_RAW
Definition: tiff.h:121
@ TIFF_LZW
Definition: tiff.h:125
@ TIFF_JPEG
Definition: tiff.h:126
@ TIFF_DEFLATE
Definition: tiff.h:130
@ TIFF_PACKBITS
Definition: tiff.h:129
@ TIFF_CCITT_RLE
Definition: tiff.h:122
@ TIFF_G3
Definition: tiff.h:123
@ TIFF_TILE_LENGTH
Definition: tiff.h:80
@ TIFF_DOCUMENT_NAME
Definition: tiff.h:55
@ TIFF_ICC_PROFILE
Definition: tiff.h:95
@ TIFF_WIDTH
Definition: tiff.h:49
@ TIFF_GEO_DOUBLE_PARAMS
Definition: tiff.h:97
@ TIFF_HOST_COMPUTER
Definition: tiff.h:76
@ TIFF_MODEL_TRANSFORMATION
Definition: tiff.h:94
@ TIFF_ARTIST
Definition: tiff.h:75
@ TIFF_PLANAR
Definition: tiff.h:65
@ TIFF_COMPR
Definition: tiff.h:52
@ TIFF_PAL
Definition: tiff.h:78
@ TIFF_PAGE_NUMBER
Definition: tiff.h:72
@ TIFF_GEO_ASCII_PARAMS
Definition: tiff.h:98
@ TIFF_ROWSPERSTRIP
Definition: tiff.h:61
@ TIFF_TILE_WIDTH
Definition: tiff.h:79
@ TIFF_PHOTOMETRIC
Definition: tiff.h:53
@ TIFF_T6OPTIONS
Definition: tiff.h:70
@ TIFF_YCBCR_SUBSAMPLING
Definition: tiff.h:86
@ TIFF_SAMPLES_PER_PIXEL
Definition: tiff.h:60
@ TIFF_STRIP_SIZE
Definition: tiff.h:62
@ TIFF_MAKE
Definition: tiff.h:57
@ TIFF_CFA_PATTERN
Definition: tiff.h:90
@ TIFF_DATE
Definition: tiff.h:74
@ TIFF_MODEL_TIEPOINT
Definition: tiff.h:92
@ TIFF_COPYRIGHT
Definition: tiff.h:91
@ TIFF_TILE_BYTE_COUNTS
Definition: tiff.h:82
@ TIFF_YRES
Definition: tiff.h:64
@ TIFF_CFA_PATTERN_DIM
Definition: tiff.h:89
@ TIFF_GEO_KEY_DIRECTORY
Definition: tiff.h:96
@ TIFF_SUB_IFDS
Definition: tiff.h:83
@ TIFF_XRES
Definition: tiff.h:63
@ TIFF_HEIGHT
Definition: tiff.h:50
@ TIFF_SOFTWARE_NAME
Definition: tiff.h:73
@ TIFF_SUBFILE
Definition: tiff.h:48
@ TIFF_T4OPTIONS
Definition: tiff.h:69
@ TIFF_TILE_OFFSETS
Definition: tiff.h:81
@ TIFF_PREDICTOR
Definition: tiff.h:77
@ TIFF_IMAGE_DESCRIPTION
Definition: tiff.h:56
@ TIFF_BPP
Definition: tiff.h:51
@ TIFF_MODEL_PIXEL_SCALE
Definition: tiff.h:93
@ TIFF_FILL_ORDER
Definition: tiff.h:54
@ TIFF_MODEL
Definition: tiff.h:58
@ TIFF_PAGE_NAME
Definition: tiff.h:66
@ TIFF_STRIP_OFFS
Definition: tiff.h:59
@ TIFF_VERTICAL_CS_TYPE_GEOKEY
Definition: tiff.h:176
@ TIFF_GEOG_GEODETIC_DATUM_GEOKEY
Definition: tiff.h:140
@ TIFF_GEOG_ELLIPSOID_GEOKEY
Definition: tiff.h:146
@ TIFF_GEOG_ANGULAR_UNITS_GEOKEY
Definition: tiff.h:144
@ TIFF_GT_MODEL_TYPE_GEOKEY
Definition: tiff.h:135
@ TIFF_PROJECTION_GEOKEY
Definition: tiff.h:154
@ TIFF_PROJ_LINEAR_UNITS_GEOKEY
Definition: tiff.h:156
@ TIFF_GT_RASTER_TYPE_GEOKEY
Definition: tiff.h:136
@ TIFF_GEOG_PRIME_MERIDIAN_GEOKEY
Definition: tiff.h:141
@ TIFF_GEOG_AZIMUTH_UNITS_GEOKEY
Definition: tiff.h:150
@ TIFF_GEOG_LINEAR_UNITS_GEOKEY
Definition: tiff.h:142
@ TIFF_GEOGRAPHIC_TYPE_GEOKEY
Definition: tiff.h:138
@ TIFF_PROJECTED_CS_TYPE_GEOKEY
Definition: tiff.h:152
@ TIFF_VERTICAL_UNITS_GEOKEY
Definition: tiff.h:179
@ TIFF_PROJ_COORD_TRANS_GEOKEY
Definition: tiff.h:155
@ CINEMADNG_REEL_NAME
Definition: tiff.h:115
@ CINEMADNG_TIME_CODES
Definition: tiff.h:112
@ CINEMADNG_CAMERA_LABEL
Definition: tiff.h:116
@ CINEMADNG_FRAME_RATE
Definition: tiff.h:113
@ CINEMADNG_T_STOP
Definition: tiff.h:114
TiffPhotometric
list of TIFF, TIFF/AP and DNG PhotometricInterpretation (TIFF_PHOTOMETRIC) values
Definition: tiff.h:183
@ TIFF_PHOTOMETRIC_ICC_LAB
Definition: tiff.h:193
@ TIFF_PHOTOMETRIC_SEPARATED
Definition: tiff.h:190
@ TIFF_PHOTOMETRIC_LINEAR_RAW
Definition: tiff.h:198
@ TIFF_PHOTOMETRIC_RGB
Definition: tiff.h:187
@ TIFF_PHOTOMETRIC_CIE_LAB
Definition: tiff.h:192
@ TIFF_PHOTOMETRIC_YCBCR
Definition: tiff.h:191
@ TIFF_PHOTOMETRIC_LOG_L
Definition: tiff.h:196
@ TIFF_PHOTOMETRIC_PALETTE
Definition: tiff.h:188
@ TIFF_PHOTOMETRIC_WHITE_IS_ZERO
Definition: tiff.h:185
@ TIFF_PHOTOMETRIC_LOG_LUV
Definition: tiff.h:197
@ TIFF_PHOTOMETRIC_ALPHA_MASK
Definition: tiff.h:189
@ TIFF_PHOTOMETRIC_CFA
Definition: tiff.h:195
@ TIFF_PHOTOMETRIC_NONE
Definition: tiff.h:184
@ TIFF_PHOTOMETRIC_BLACK_IS_ZERO
Definition: tiff.h:186
@ TIFF_PHOTOMETRIC_ITU_LAB
Definition: tiff.h:194
@ DNG_VERSION
Definition: tiff.h:103
@ DNG_WHITE_LEVEL
Definition: tiff.h:107
@ DNG_LINEARIZATION_TABLE
Definition: tiff.h:105
@ DNG_BLACK_LEVEL
Definition: tiff.h:106
TiffType
TIFF types in ascenting priority (last in the list is highest)
Definition: tiff.h:37
@ TIFF_TYPE_CINEMADNG
Digital Negative (DNG) image part of an CinemaDNG image sequence.
Definition: tiff.h:43
@ TIFF_TYPE_TIFF
TIFF image based on the TIFF 6.0 or TIFF/EP (ISO 12234-2) specifications.
Definition: tiff.h:39
@ TIFF_TYPE_DNG
Digital Negative (DNG) image.
Definition: tiff.h:41
unsigned ff_tget(GetByteContext *gb, int type, int le)
Reads a byte from the bytestream using given endianness.
Definition: tiff_common.c:62
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 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 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
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 ff_tget_short(GetByteContext *gb, int le)
Reads a short from the bytestream using given endianness.
Definition: tiff_common.c:43
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
double ff_tget_double(GetByteContext *gb, int le)
Reads a double from the bytestream using given endianness.
Definition: tiff_common.c:55
unsigned ff_tget_long(GetByteContext *gb, int le)
Reads a long from the bytestream using given endianness.
Definition: tiff_common.c:49
@ TIFF_BYTE
Definition: tiff_common.h:38
@ TIFF_SHORT
Definition: tiff_common.h:40
@ TIFF_LONG
Definition: tiff_common.h:41
@ TIFF_STRING
Definition: tiff_common.h:39
@ TIFF_DOUBLE
Definition: tiff_common.h:49
@ TIFF_RATIONAL
Definition: tiff_common.h:42
static const uint8_t type_sizes[14]
sizes of various TIFF field types (string size = 100)
Definition: tiff_common.h:54
TIFF data tables.
static const TiffGeoTagKeyName tiff_projection_codes[]
Definition: tiff_data.h:1517
#define TIFF_GEO_KEY_USER_DEFINED
Definition: tiff_data.h:97
static const TiffGeoTagKeyName tiff_proj_cs_type_codes[]
Definition: tiff_data.h:536
#define TIFF_GEO_KEY_UNDEFINED
Definition: tiff_data.h:96
int size
const char * b
Definition: vf_curves.c:118
const char * g
Definition: vf_curves.c:117
const char * r
Definition: vf_curves.c:116
if(ret< 0)
Definition: vf_mcdeint.c:282
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
static const uint8_t offset[127][2]
Definition: vf_spp.c:107
int len
static double c[64]