FFmpeg
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 <float.h>
37 
38 #include "libavutil/attributes.h"
39 #include "libavutil/avstring.h"
40 #include "libavutil/error.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/mem.h"
43 #include "libavutil/opt.h"
44 #include "libavutil/reverse.h"
45 #include "avcodec.h"
46 #include "bytestream.h"
47 #include "codec_internal.h"
48 #include "decode.h"
49 #include "faxcompr.h"
50 #include "lzw.h"
51 #include "tiff.h"
52 #include "tiff_common.h"
53 #include "tiff_data.h"
54 #include "mjpegdec.h"
55 #include "thread.h"
56 #include "get_bits.h"
57 
58 typedef struct TiffContext {
59  AVClass *class;
60  AVCodecContext *avctx;
61  GetByteContext gb;
62 
63  /* JPEG decoding for DNG */
64  AVCodecContext *avctx_mjpeg; // wrapper context for MJPEG
65  AVPacket *jpkt; // encoded JPEG tile
66  AVFrame *jpgframe; // decoded JPEG tile
67 
68  int get_subimage;
69  uint16_t get_page;
70  int get_thumbnail;
71 
72  enum TiffType tiff_type;
73  int width, height;
74  unsigned int bpp, bppcount;
75  uint32_t palette[256];
76  int palette_is_set;
77  int le;
78  enum TiffCompr compr;
79  enum TiffPhotometric photometric;
80  int planar;
81  int subsampling[2];
82  int fax_opts;
83  int predictor;
84  int fill_order;
85  uint32_t res[4];
86  int is_thumbnail;
87  unsigned last_tag;
88 
89  int is_bayer;
90  int use_color_matrix;
91  uint8_t pattern[4];
92 
93  float analog_balance[4];
94  float as_shot_neutral[4];
95  float as_shot_white[4];
96  float color_matrix[3][4];
97  float camera_calibration[4][4];
98  float premultiply[4];
99  float black_level[4];
100 
101  unsigned white_level;
102  uint16_t dng_lut[65536];
103 
104  uint32_t sub_ifd;
105  uint16_t cur_page;
106 
107  int strips, rps, sstype;
108  int sot;
109  int stripsizesoff, stripsize, stripoff, strippos;
110  LZWState *lzw;
111 
112  /* Tile support */
113  int is_tiled;
114  int tile_byte_counts_offset, tile_offsets_offset;
115  int tile_width, tile_length;
116 
117  int is_jpeg;
118 
119  uint8_t *deinvert_buf;
120  int deinvert_buf_size;
121  uint8_t *yuv_line;
122  unsigned int yuv_line_size;
123 
124  int geotag_count;
125  TiffGeoTag *geotags;
126 } TiffContext;
127 
128 static const float d65_white[3] = { 0.950456f, 1.f, 1.088754f };
129 
130 static void tiff_set_type(TiffContext *s, enum TiffType tiff_type) {
131  if (s->tiff_type < tiff_type) // Prioritize higher-valued entries
132  s->tiff_type = tiff_type;
133 }
134 
135 static void free_geotags(TiffContext *const s)
136 {
137  for (int i = 0; i < s->geotag_count; i++)
138  av_freep(&s->geotags[i].val);
139  av_freep(&s->geotags);
140  s->geotag_count = 0;
141 }
142 
143 static const char *get_geokey_name(int key)
144 {
145 #define RET_GEOKEY_STR(TYPE, array)\
146  if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
147  key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(tiff_##array##_name_type_map))\
148  return tiff_##array##_name_type_string + tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].offset;
149 
150  RET_GEOKEY_STR(VERT, vert);
151  RET_GEOKEY_STR(PROJ, proj);
152  RET_GEOKEY_STR(GEOG, geog);
153  RET_GEOKEY_STR(CONF, conf);
154 
155  return NULL;
156 }
157 
158 static int get_geokey_type(int key)
159 {
160 #define RET_GEOKEY_TYPE(TYPE, array)\
161  if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
162  key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(tiff_##array##_name_type_map))\
163  return tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].type;
164  RET_GEOKEY_TYPE(VERT, vert);
165  RET_GEOKEY_TYPE(PROJ, proj);
166  RET_GEOKEY_TYPE(GEOG, geog);
167  RET_GEOKEY_TYPE(CONF, conf);
168 
169  return AVERROR_INVALIDDATA;
170 }
171 
172 static int cmp_id_key(const void *id, const void *k)
173 {
174  return *(const int*)id - ((const TiffGeoTagKeyName*)k)->key;
175 }
176 
177 static const char *search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
178 {
179  const TiffGeoTagKeyName *r = bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key);
180  if(r)
181  return r->name;
182 
183  return NULL;
184 }
185 
186 static const char *get_geokey_val(int key, uint16_t val)
187 {
188  if (val == TIFF_GEO_KEY_UNDEFINED)
189  return "undefined";
190  if (val == TIFF_GEO_KEY_USER_DEFINED)
191  return "User-Defined";
192 
193 #define RET_GEOKEY_VAL(TYPE, array)\
194  if (val >= TIFF_##TYPE##_OFFSET &&\
195  val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(tiff_##array##_codes))\
196  return tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET];
197 
198  switch (key) {
199  case TIFF_GT_MODEL_TYPE_GEOKEY:
200  RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
201  break;
202  case TIFF_GT_RASTER_TYPE_GEOKEY:
203  RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
204  break;
205  case TIFF_GEOG_LINEAR_UNITS_GEOKEY:
206  case TIFF_PROJ_LINEAR_UNITS_GEOKEY:
207  case TIFF_VERTICAL_UNITS_GEOKEY:
208  RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
209  break;
210  case TIFF_GEOG_ANGULAR_UNITS_GEOKEY:
211  case TIFF_GEOG_AZIMUTH_UNITS_GEOKEY:
212  RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
213  break;
214  case TIFF_GEOGRAPHIC_TYPE_GEOKEY:
215  RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
216  RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
217  break;
218  case TIFF_GEOG_GEODETIC_DATUM_GEOKEY:
219  RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
220  RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
221  break;
222  case TIFF_GEOG_ELLIPSOID_GEOKEY:
223  RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
224  break;
225  case TIFF_GEOG_PRIME_MERIDIAN_GEOKEY:
226  RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
227  break;
228  case TIFF_PROJECTED_CS_TYPE_GEOKEY:
229  return search_keyval(tiff_proj_cs_type_codes, FF_ARRAY_ELEMS(tiff_proj_cs_type_codes), val);
230  case TIFF_PROJECTION_GEOKEY:
231  return search_keyval(tiff_projection_codes, FF_ARRAY_ELEMS(tiff_projection_codes), val);
232  case TIFF_PROJ_COORD_TRANS_GEOKEY:
233  RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
234  break;
235  case TIFF_VERTICAL_CS_TYPE_GEOKEY:
236  RET_GEOKEY_VAL(VERT_CS, vert_cs);
237  RET_GEOKEY_VAL(ORTHO_VERT_CS, ortho_vert_cs);
238  break;
239 
240  }
241 
242  return NULL;
243 }
244 
245 static char *doubles2str(double *dp, int count, const char *sep)
246 {
247  int i;
248  char *ap, *ap0;
249  uint64_t component_len;
250  if (!sep) sep = ", ";
251  component_len = 24LL + strlen(sep);
252  if (count >= (INT_MAX - 1)/component_len)
253  return NULL;
254  ap = av_malloc(component_len * count + 1);
255  if (!ap)
256  return NULL;
257  ap0 = ap;
258  ap[0] = '\0';
259  for (i = 0; i < count; i++) {
260  unsigned l = snprintf(ap, component_len, "%.15g%s", dp[i], sep);
261  if(l >= component_len) {
262  av_free(ap0);
263  return NULL;
264  }
265  ap += l;
266  }
267  ap0[strlen(ap0) - strlen(sep)] = '\0';
268  return ap0;
269 }
270 
271 static int add_metadata(int count, int type,
272  const char *name, const char *sep, TiffContext *s, AVFrame *frame)
273 {
274  switch(type) {
275  case TIFF_DOUBLE: return ff_tadd_doubles_metadata(count, name, sep, &s->gb, s->le, &frame->metadata);
276  case TIFF_SHORT : return ff_tadd_shorts_metadata(count, name, sep, &s->gb, s->le, 0, &frame->metadata);
277  case TIFF_STRING: return ff_tadd_string_metadata(count, name, &s->gb, s->le, &frame->metadata);
278  default : return AVERROR_INVALIDDATA;
279  };
280 }
281 
282 /**
283  * Map stored raw sensor values into linear reference values (see: DNG Specification - Chapter 5)
284  */
285 static uint16_t av_always_inline dng_process_color16(uint16_t value,
286  const uint16_t *lut,
287  float black_level,
288  float scale_factor)
289 {
290  float value_norm;
291 
292  // Lookup table lookup
293  value = lut[value];
294 
295  // Black level subtraction
296  // Color scaling
297  value_norm = ((float)value - black_level) * scale_factor;
298 
299  value = av_clip_uint16(lrintf(value_norm));
300 
301  return value;
302 }
303 
304 static uint16_t av_always_inline dng_process_color8(uint16_t value,
305  const uint16_t *lut,
306  float black_level,
307  float scale_factor)
308 {
309  return dng_process_color16(value, lut, black_level, scale_factor) >> 8;
310 }
311 
312 static void av_always_inline dng_blit(TiffContext *s, uint8_t *dst, int dst_stride,
313  const uint8_t *src, int src_stride, int width, int height,
314  int is_single_comp, int is_u16, int odd_line)
315 {
316  float scale_factor[4];
317  int line, col;
318 
319  if (s->is_bayer) {
320  for (int i = 0; i < 4; i++)
321  scale_factor[i] = s->premultiply[s->pattern[i]] * 65535.f / (s->white_level - s->black_level[i]);
322  } else {
323  for (int i = 0; i < 4; i++)
324  scale_factor[i] = s->premultiply[ i ] * 65535.f / (s->white_level - s->black_level[i]);
325  }
326 
327  if (is_single_comp) {
328  if (!is_u16)
329  return; /* <= 8bpp unsupported */
330 
331  /* Image is double the width and half the height we need, each row comprises 2 rows of the output
332  (split vertically in the middle). */
333  for (line = 0; line < height / 2; line++) {
334  uint16_t *dst_u16 = (uint16_t *)dst;
335  const uint16_t *src_u16 = (const uint16_t *)src;
336 
337  /* Blit first half of input row row to initial row of output */
338  for (col = 0; col < width; col++)
339  *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level[col&1], scale_factor[col&1]);
340 
341  /* Advance the destination pointer by a row (source pointer remains in the same place) */
342  dst += dst_stride * sizeof(uint16_t);
343  dst_u16 = (uint16_t *)dst;
344 
345  /* Blit second half of input row row to next row of output */
346  for (col = 0; col < width; col++)
347  *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level[(col&1) + 2], scale_factor[(col&1) + 2]);
348 
349  dst += dst_stride * sizeof(uint16_t);
350  src += src_stride * sizeof(uint16_t);
351  }
352  } else {
353  /* Input and output image are the same size and the MJpeg decoder has done per-component
354  deinterleaving, so blitting here is straightforward. */
355  if (is_u16) {
356  for (line = 0; line < height; line++) {
357  uint16_t *dst_u16 = (uint16_t *)dst;
358  const uint16_t *src_u16 = (const uint16_t *)src;
359 
360  for (col = 0; col < width; col++)
361  *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut,
362  s->black_level[(col&1) + 2 * ((line&1) + odd_line)],
363  scale_factor[(col&1) + 2 * ((line&1) + odd_line)]);
364 
365  dst += dst_stride * sizeof(uint16_t);
366  src += src_stride * sizeof(uint16_t);
367  }
368  } else {
369  for (line = 0; line < height; line++) {
370  uint8_t *dst_u8 = dst;
371  const uint8_t *src_u8 = src;
372 
373  for (col = 0; col < width; col++)
374  *dst_u8++ = dng_process_color8(*src_u8++, s->dng_lut,
375  s->black_level[(col&1) + 2 * ((line&1) + odd_line)],
376  scale_factor[(col&1) + 2 * ((line&1) + odd_line)]);
377 
378  dst += dst_stride;
379  src += src_stride;
380  }
381  }
382  }
383 }
384 
385 static void av_always_inline horizontal_fill(TiffContext *s,
386  unsigned int bpp, uint8_t* dst,
387  int usePtr, const uint8_t *src,
388  uint8_t c, int width, int offset)
389 {
390  switch (bpp) {
391  case 1:
392  while (--width >= 0) {
393  dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
394  dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
395  dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
396  dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
397  dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
398  dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
399  dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
400  dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
401  }
402  break;
403  case 2:
404  while (--width >= 0) {
405  dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
406  dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
407  dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
408  dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
409  }
410  break;
411  case 4:
412  while (--width >= 0) {
413  dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
414  dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
415  }
416  break;
417  case 10:
418  case 12:
419  case 14: {
420  uint16_t *dst16 = (uint16_t *)dst;
421  int is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
422  uint8_t shift = is_dng ? 0 : 16 - bpp;
423  GetBitContext gb;
424 
425  av_unused int ret = init_get_bits8(&gb, src, width);
426  av_assert1(ret >= 0);
427  for (int i = 0; i < s->width; i++) {
428  dst16[i] = get_bits(&gb, bpp) << shift;
429  }
430  }
431  break;
432  default:
433  if (usePtr) {
434  memcpy(dst + offset, src, width);
435  } else {
436  memset(dst + offset, c, width);
437  }
438  }
439 }
440 
441 static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
442 {
443  int i;
444 
445  av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
446  if (!s->deinvert_buf)
447  return AVERROR(ENOMEM);
448  for (i = 0; i < size; i++)
449  s->deinvert_buf[i] = ff_reverse[src[i]];
450 
451  return 0;
452 }
453 
454 static void unpack_gray(TiffContext *s, AVFrame *p,
455  const uint8_t *src, int lnum, int width, int bpp)
456 {
457  GetBitContext gb;
458  uint16_t *dst = (uint16_t *)(p->data[0] + lnum * p->linesize[0]);
459 
460  av_unused int ret = init_get_bits8(&gb, src, width);
461  av_assert1(ret >= 0);
462 
463  for (int i = 0; i < s->width; i++) {
464  dst[i] = get_bits(&gb, bpp);
465  }
466 }
467 
468 static void unpack_yuv(TiffContext *s, AVFrame *p,
469  const uint8_t *src, int lnum)
470 {
471  int i, j, k;
472  int w = (s->width - 1) / s->subsampling[0] + 1;
473  uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
474  uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
475  if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
476  for (i = 0; i < w; i++) {
477  for (j = 0; j < s->subsampling[1]; j++)
478  for (k = 0; k < s->subsampling[0]; k++)
479  p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
480  FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++;
481  *pu++ = *src++;
482  *pv++ = *src++;
483  }
484  }else{
485  for (i = 0; i < w; i++) {
486  for (j = 0; j < s->subsampling[1]; j++)
487  for (k = 0; k < s->subsampling[0]; k++)
488  p->data[0][(lnum + j) * p->linesize[0] +
489  i * s->subsampling[0] + k] = *src++;
490  *pu++ = *src++;
491  *pv++ = *src++;
492  }
493  }
494 }
495 
496 #if CONFIG_ZLIB
497 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
498  int size)
499 {
500  z_stream zstream = { 0 };
501  int zret;
502 
503  zstream.next_in = src;
504  zstream.avail_in = size;
505  zstream.next_out = dst;
506  zstream.avail_out = *len;
507  zret = inflateInit(&zstream);
508  if (zret != Z_OK) {
509  av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
510  return zret;
511  }
512  zret = inflate(&zstream, Z_SYNC_FLUSH);
513  inflateEnd(&zstream);
514  *len = zstream.total_out;
515  return zret == Z_STREAM_END ? Z_OK : zret;
516 }
517 
518 static int tiff_unpack_zlib(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
519  const uint8_t *src, int size, int width, int lines,
520  int strip_start, int is_yuv)
521 {
522  uint8_t *zbuf;
523  unsigned long outlen;
524  int ret, line;
525  outlen = width * lines;
526  zbuf = av_malloc(outlen);
527  if (!zbuf)
528  return AVERROR(ENOMEM);
529  if (s->fill_order) {
530  if ((ret = deinvert_buffer(s, src, size)) < 0) {
531  av_free(zbuf);
532  return ret;
533  }
534  src = s->deinvert_buf;
535  }
536  ret = tiff_uncompress(zbuf, &outlen, src, size);
537  if (ret != Z_OK) {
538  av_log(s->avctx, AV_LOG_ERROR,
539  "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
540  (unsigned long)width * lines, ret);
541  av_free(zbuf);
542  return AVERROR_UNKNOWN;
543  }
544  src = zbuf;
545  for (line = 0; line < lines; line++) {
546  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
547  horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
548  } else {
549  memcpy(dst, src, width);
550  }
551  if (is_yuv) {
552  unpack_yuv(s, p, dst, strip_start + line);
553  line += s->subsampling[1] - 1;
554  }
555  dst += stride;
556  src += width;
557  }
558  av_free(zbuf);
559  return 0;
560 }
561 #endif
562 
563 #if CONFIG_LZMA
564 static int tiff_uncompress_lzma(uint8_t *dst, uint64_t *len, const uint8_t *src,
565  int size)
566 {
567  lzma_stream stream = LZMA_STREAM_INIT;
568  lzma_ret ret;
569 
570  stream.next_in = src;
571  stream.avail_in = size;
572  stream.next_out = dst;
573  stream.avail_out = *len;
574  ret = lzma_stream_decoder(&stream, UINT64_MAX, 0);
575  if (ret != LZMA_OK) {
576  av_log(NULL, AV_LOG_ERROR, "LZMA init error: %d\n", ret);
577  return ret;
578  }
579  ret = lzma_code(&stream, LZMA_RUN);
580  lzma_end(&stream);
581  *len = stream.total_out;
582  return ret == LZMA_STREAM_END ? LZMA_OK : ret;
583 }
584 
585 static int tiff_unpack_lzma(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
586  const uint8_t *src, int size, int width, int lines,
587  int strip_start, int is_yuv)
588 {
589  uint64_t outlen = width * (uint64_t)lines;
590  int ret, line;
591  uint8_t *buf = av_malloc(outlen);
592  if (!buf)
593  return AVERROR(ENOMEM);
594  if (s->fill_order) {
595  if ((ret = deinvert_buffer(s, src, size)) < 0) {
596  av_free(buf);
597  return ret;
598  }
599  src = s->deinvert_buf;
600  }
601  ret = tiff_uncompress_lzma(buf, &outlen, src, size);
602  if (ret != LZMA_OK) {
603  av_log(s->avctx, AV_LOG_ERROR,
604  "Uncompressing failed (%"PRIu64" of %"PRIu64") with error %d\n", outlen,
605  (uint64_t)width * lines, ret);
606  av_free(buf);
607  return AVERROR_UNKNOWN;
608  }
609  src = buf;
610  for (line = 0; line < lines; line++) {
611  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
612  horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
613  } else {
614  memcpy(dst, src, width);
615  }
616  if (is_yuv) {
617  unpack_yuv(s, p, dst, strip_start + line);
618  line += s->subsampling[1] - 1;
619  }
620  dst += stride;
621  src += width;
622  }
623  av_free(buf);
624  return 0;
625 }
626 #endif
627 
628 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
629  const uint8_t *src, int size, int width, int lines)
630 {
631  int line;
632  int ret;
633 
634  if (s->fill_order) {
635  if ((ret = deinvert_buffer(s, src, size)) < 0)
636  return ret;
637  src = s->deinvert_buf;
638  }
639  ret = ff_ccitt_unpack(s->avctx, src, size, dst, lines, stride,
640  s->compr, s->fax_opts);
641  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
642  for (line = 0; line < lines; line++) {
643  horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
644  dst += stride;
645  }
646  return ret;
647 }
648 
649 static int dng_decode_jpeg(AVCodecContext *avctx, AVFrame *frame,
650  int tile_byte_count, int dst_x, int dst_y, int w, int h)
651 {
652  TiffContext *s = avctx->priv_data;
653  uint8_t *dst_data, *src_data;
654  uint32_t dst_offset; /* offset from dst buffer in pixels */
655  int is_single_comp, is_u16, pixel_size;
656  int ret;
657 
658  if (tile_byte_count < 0 || tile_byte_count > bytestream2_get_bytes_left(&s->gb))
659  return AVERROR_INVALIDDATA;
660 
661  /* Prepare a packet and send to the MJPEG decoder */
662  av_packet_unref(s->jpkt);
663  s->jpkt->data = (uint8_t*)s->gb.buffer;
664  s->jpkt->size = tile_byte_count;
665 
666  if (s->is_bayer) {
667  MJpegDecodeContext *mjpegdecctx = s->avctx_mjpeg->priv_data;
668  /* We have to set this information here, there is no way to know if a given JPEG is a DNG-embedded
669  image or not from its own data (and we need that information when decoding it). */
670  mjpegdecctx->bayer = 1;
671  }
672 
673  ret = avcodec_send_packet(s->avctx_mjpeg, s->jpkt);
674  if (ret < 0) {
675  av_log(avctx, AV_LOG_ERROR, "Error submitting a packet for decoding\n");
676  return ret;
677  }
678 
679  ret = avcodec_receive_frame(s->avctx_mjpeg, s->jpgframe);
680  if (ret < 0) {
681  av_log(avctx, AV_LOG_ERROR, "JPEG decoding error: %s.\n", av_err2str(ret));
682 
683  /* Normally skip, error if explode */
684  if (avctx->err_recognition & AV_EF_EXPLODE)
685  return AVERROR_INVALIDDATA;
686  else
687  return 0;
688  }
689 
690  is_u16 = (s->bpp > 8);
691 
692  /* Copy the outputted tile's pixels from 'jpgframe' to 'frame' (final buffer) */
693 
694  if (s->jpgframe->width != s->avctx_mjpeg->width ||
695  s->jpgframe->height != s->avctx_mjpeg->height ||
696  s->jpgframe->format != s->avctx_mjpeg->pix_fmt)
697  return AVERROR_INVALIDDATA;
698 
699  /* See dng_blit for explanation */
700  if (s->avctx_mjpeg->width == w * 2 &&
701  s->avctx_mjpeg->height == h / 2 &&
702  s->avctx_mjpeg->pix_fmt == AV_PIX_FMT_GRAY16LE) {
703  is_single_comp = 1;
704  } else if (s->avctx_mjpeg->width >= w &&
705  s->avctx_mjpeg->height >= h &&
706  s->avctx_mjpeg->pix_fmt == (is_u16 ? AV_PIX_FMT_GRAY16 : AV_PIX_FMT_GRAY8)
707  ) {
708  is_single_comp = 0;
709  } else
710  return AVERROR_INVALIDDATA;
711 
712  pixel_size = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
713 
714  if (is_single_comp && !is_u16) {
715  av_log(s->avctx, AV_LOG_ERROR, "DNGs with bpp <= 8 and 1 component are unsupported\n");
716  av_frame_unref(s->jpgframe);
717  return AVERROR_PATCHWELCOME;
718  }
719 
720  dst_offset = dst_x + frame->linesize[0] * dst_y / pixel_size;
721  dst_data = frame->data[0] + dst_offset * pixel_size;
722  src_data = s->jpgframe->data[0];
723 
724  dng_blit(s,
725  dst_data,
726  frame->linesize[0] / pixel_size,
727  src_data,
728  s->jpgframe->linesize[0] / pixel_size,
729  w,
730  h,
731  is_single_comp,
732  is_u16, 0);
733 
734  av_frame_unref(s->jpgframe);
735 
736  return 0;
737 }
738 
739 static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
740  const uint8_t *src, int size, int strip_start, int lines)
741 {
742  PutByteContext pb;
743  int c, line, pixels, code, ret;
744  const uint8_t *ssrc = src;
745  int width = ((s->width * s->bpp) + 7) >> 3;
746  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(p->format);
747  int is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) &&
748  (desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
749  desc->nb_components >= 3;
750  int is_dng;
751 
752  if (s->planar)
753  width /= s->bppcount;
754 
755  if (size <= 0)
756  return AVERROR_INVALIDDATA;
757 
758  if (is_yuv) {
759  int bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
760  s->subsampling[0] * s->subsampling[1] + 7) >> 3;
761  av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row);
762  if (s->yuv_line == NULL) {
763  av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
764  return AVERROR(ENOMEM);
765  }
766  dst = s->yuv_line;
767  stride = 0;
768 
769  width = (s->width - 1) / s->subsampling[0] + 1;
770  width = width * s->subsampling[0] * s->subsampling[1] + 2*width;
771  av_assert0(width <= bytes_per_row);
772  av_assert0(s->bpp == 24);
773  }
774  if (s->is_bayer) {
775  av_assert0(width == (s->bpp * s->width + 7) >> 3);
776  }
777  av_assert0(!(s->is_bayer && is_yuv));
778  if (p->format == AV_PIX_FMT_GRAY12) {
779  av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, width);
780  if (s->yuv_line == NULL) {
781  av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
782  return AVERROR(ENOMEM);
783  }
784  dst = s->yuv_line;
785  stride = 0;
786  }
787 
788  if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
789 #if CONFIG_ZLIB
790  return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines,
791  strip_start, is_yuv);
792 #else
793  av_log(s->avctx, AV_LOG_ERROR,
794  "zlib support not enabled, "
795  "deflate compression not supported\n");
796  return AVERROR(ENOSYS);
797 #endif
798  }
799  if (s->compr == TIFF_LZMA) {
800 #if CONFIG_LZMA
801  return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
802  strip_start, is_yuv);
803 #else
804  av_log(s->avctx, AV_LOG_ERROR,
805  "LZMA support not enabled\n");
806  return AVERROR(ENOSYS);
807 #endif
808  }
809  if (s->compr == TIFF_LZW) {
810  if (s->fill_order) {
811  if ((ret = deinvert_buffer(s, src, size)) < 0)
812  return ret;
813  ssrc = src = s->deinvert_buf;
814  }
815  if (size > 1 && !src[0] && (src[1]&1)) {
816  av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
817  }
818  if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
819  av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
820  return ret;
821  }
822  for (line = 0; line < lines; line++) {
823  pixels = ff_lzw_decode(s->lzw, dst, width);
824  if (pixels < width) {
825  av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
826  pixels, width);
827  return AVERROR_INVALIDDATA;
828  }
829  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
830  horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
831  if (is_yuv) {
832  unpack_yuv(s, p, dst, strip_start + line);
833  line += s->subsampling[1] - 1;
834  } else if (p->format == AV_PIX_FMT_GRAY12) {
835  unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
836  }
837  dst += stride;
838  }
839  return 0;
840  }
841  if (s->compr == TIFF_CCITT_RLE ||
842  s->compr == TIFF_G3 ||
843  s->compr == TIFF_G4) {
844  if (is_yuv || p->format == AV_PIX_FMT_GRAY12)
845  return AVERROR_INVALIDDATA;
846 
847  return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
848  }
849 
850  bytestream2_init(&s->gb, src, size);
851  bytestream2_init_writer(&pb, dst, is_yuv ? s->yuv_line_size : (stride * lines));
852 
853  is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
854 
855  /* Decode JPEG-encoded DNGs with strips */
856  if (s->compr == TIFF_NEWJPEG && is_dng) {
857  if (s->strips > 1) {
858  av_log(s->avctx, AV_LOG_ERROR, "More than one DNG JPEG strips unsupported\n");
859  return AVERROR_PATCHWELCOME;
860  }
861  if (!s->is_bayer)
862  return AVERROR_PATCHWELCOME;
863  if ((ret = dng_decode_jpeg(s->avctx, p, s->stripsize, 0, 0, s->width, s->height)) < 0)
864  return ret;
865  return 0;
866  }
867 
868  if (is_dng && stride == 0)
869  return AVERROR_INVALIDDATA;
870 
871  for (line = 0; line < lines; line++) {
872  if (src - ssrc > size) {
873  av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
874  return AVERROR_INVALIDDATA;
875  }
876 
877  if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb))
878  break;
879  bytestream2_seek_p(&pb, stride * line, SEEK_SET);
880  switch (s->compr) {
881  case TIFF_RAW:
882  if (ssrc + size - src < width)
883  return AVERROR_INVALIDDATA;
884 
885  if (!s->fill_order) {
886  horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 || s->is_bayer),
887  dst, 1, src, 0, width, 0);
888  } else {
889  int i;
890  for (i = 0; i < width; i++)
891  dst[i] = ff_reverse[src[i]];
892  }
893 
894  /* Color processing for DNG images with uncompressed strips (non-tiled) */
895  if (is_dng) {
896  int is_u16, pixel_size_bytes, pixel_size_bits, elements;
897 
898  is_u16 = (s->bpp / s->bppcount > 8);
899  pixel_size_bits = (is_u16 ? 16 : 8);
900  pixel_size_bytes = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
901 
902  elements = width / pixel_size_bytes * pixel_size_bits / s->bpp * s->bppcount; // need to account for [1, 16] bpp
903  av_assert0 (elements * pixel_size_bytes <= FFABS(stride));
904  dng_blit(s,
905  dst,
906  0, // no stride, only 1 line
907  dst,
908  0, // no stride, only 1 line
909  elements,
910  1,
911  0, // single-component variation is only preset in JPEG-encoded DNGs
912  is_u16,
913  (line + strip_start)&1);
914  }
915 
916  src += width;
917  break;
918  case TIFF_PACKBITS:
919  for (pixels = 0; pixels < width;) {
920  if (ssrc + size - src < 2) {
921  av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
922  return AVERROR_INVALIDDATA;
923  }
924  code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
925  if (code >= 0) {
926  code++;
927  if (pixels + code > width ||
928  ssrc + size - src < code) {
929  av_log(s->avctx, AV_LOG_ERROR,
930  "Copy went out of bounds\n");
931  return AVERROR_INVALIDDATA;
932  }
933  horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
934  dst, 1, src, 0, code, pixels);
935  src += code;
936  pixels += code;
937  } else if (code != -128) { // -127..-1
938  code = (-code) + 1;
939  if (pixels + code > width) {
940  av_log(s->avctx, AV_LOG_ERROR,
941  "Run went out of bounds\n");
942  return AVERROR_INVALIDDATA;
943  }
944  c = *src++;
945  horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
946  dst, 0, NULL, c, code, pixels);
947  pixels += code;
948  }
949  }
950  if (s->fill_order) {
951  int i;
952  for (i = 0; i < width; i++)
953  dst[i] = ff_reverse[dst[i]];
954  }
955  break;
956  }
957  if (is_yuv) {
958  unpack_yuv(s, p, dst, strip_start + line);
959  line += s->subsampling[1] - 1;
960  } else if (p->format == AV_PIX_FMT_GRAY12) {
961  unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
962  }
963  dst += stride;
964  }
965  return 0;
966 }
967 
968 static int dng_decode_tiles(AVCodecContext *avctx, AVFrame *frame,
969  const AVPacket *avpkt)
970 {
971  TiffContext *s = avctx->priv_data;
972  int tile_idx;
973  int tile_offset_offset, tile_offset;
974  int tile_byte_count_offset, tile_byte_count;
975  int tile_count_x, tile_count_y;
976  int tile_width, tile_length;
977  int has_width_leftover, has_height_leftover;
978  int tile_x = 0, tile_y = 0;
979  int pos_x = 0, pos_y = 0;
980  int ret;
981 
982  if (s->tile_width <= 0 || s->tile_length <= 0)
983  return AVERROR_INVALIDDATA;
984 
985  has_width_leftover = (s->width % s->tile_width != 0);
986  has_height_leftover = (s->height % s->tile_length != 0);
987 
988  /* Calculate tile counts (round up) */
989  tile_count_x = (s->width + s->tile_width - 1) / s->tile_width;
990  tile_count_y = (s->height + s->tile_length - 1) / s->tile_length;
991 
992  /* Iterate over the number of tiles */
993  for (tile_idx = 0; tile_idx < tile_count_x * tile_count_y; tile_idx++) {
994  tile_x = tile_idx % tile_count_x;
995  tile_y = tile_idx / tile_count_x;
996 
997  if (has_width_leftover && tile_x == tile_count_x - 1) // If on the right-most tile
998  tile_width = s->width % s->tile_width;
999  else
1000  tile_width = s->tile_width;
1001 
1002  if (has_height_leftover && tile_y == tile_count_y - 1) // If on the bottom-most tile
1003  tile_length = s->height % s->tile_length;
1004  else
1005  tile_length = s->tile_length;
1006 
1007  /* Read tile offset */
1008  tile_offset_offset = s->tile_offsets_offset + tile_idx * sizeof(int);
1009  bytestream2_seek(&s->gb, tile_offset_offset, SEEK_SET);
1010  tile_offset = ff_tget_long(&s->gb, s->le);
1011 
1012  /* Read tile byte size */
1013  tile_byte_count_offset = s->tile_byte_counts_offset + tile_idx * sizeof(int);
1014  bytestream2_seek(&s->gb, tile_byte_count_offset, SEEK_SET);
1015  tile_byte_count = ff_tget_long(&s->gb, s->le);
1016 
1017  /* Seek to tile data */
1018  bytestream2_seek(&s->gb, tile_offset, SEEK_SET);
1019 
1020  /* Decode JPEG tile and copy it in the reference frame */
1021  ret = dng_decode_jpeg(avctx, frame, tile_byte_count, pos_x, pos_y, tile_width, tile_length);
1022 
1023  if (ret < 0)
1024  return ret;
1025 
1026  /* Advance current positions */
1027  pos_x += tile_width;
1028  if (tile_x == tile_count_x - 1) { // If on the right edge
1029  pos_x = 0;
1030  pos_y += tile_length;
1031  }
1032  }
1033 
1034  /* Frame is ready to be output */
1035  frame->pict_type = AV_PICTURE_TYPE_I;
1036  frame->flags |= AV_FRAME_FLAG_KEY;
1037 
1038  return avpkt->size;
1039 }
1040 
1041 static int init_image(TiffContext *s, AVFrame *frame)
1042 {
1043  int ret;
1044  int create_gray_palette = 0;
1045 
1046  // make sure there is no aliasing in the following switch
1047  if (s->bpp > 128 || s->bppcount >= 10) {
1048  av_log(s->avctx, AV_LOG_ERROR,
1049  "Unsupported image parameters: bpp=%d, bppcount=%d\n",
1050  s->bpp, s->bppcount);
1051  return AVERROR_INVALIDDATA;
1052  }
1053 
1054  switch (s->planar * 10000 + s->bpp * 10 + s->bppcount + s->is_bayer * 100000) {
1055  case 11:
1056  if (!s->palette_is_set) {
1057  s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
1058  break;
1059  }
1060  case 21:
1061  case 41:
1062  s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
1063  if (!s->palette_is_set) {
1064  create_gray_palette = 1;
1065  }
1066  break;
1067  case 81:
1068  s->avctx->pix_fmt = s->palette_is_set ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_GRAY8;
1069  break;
1070  case 121:
1071  s->avctx->pix_fmt = AV_PIX_FMT_GRAY12;
1072  break;
1073  case 100081:
1074  switch (AV_RL32(s->pattern)) {
1075  case 0x02010100:
1076  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB8;
1077  break;
1078  case 0x00010102:
1079  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR8;
1080  break;
1081  case 0x01000201:
1082  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG8;
1083  break;
1084  case 0x01020001:
1085  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG8;
1086  break;
1087  default:
1088  av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1089  AV_RL32(s->pattern));
1090  return AVERROR_PATCHWELCOME;
1091  }
1092  break;
1093  case 100101:
1094  case 100121:
1095  case 100141:
1096  case 100161:
1097  switch (AV_RL32(s->pattern)) {
1098  case 0x02010100:
1099  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB16;
1100  break;
1101  case 0x00010102:
1102  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR16;
1103  break;
1104  case 0x01000201:
1105  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG16;
1106  break;
1107  case 0x01020001:
1108  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG16;
1109  break;
1110  default:
1111  av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1112  AV_RL32(s->pattern));
1113  return AVERROR_PATCHWELCOME;
1114  }
1115  break;
1116  case 243:
1117  if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1118  if (s->subsampling[0] == 1 && s->subsampling[1] == 1) {
1119  s->avctx->pix_fmt = AV_PIX_FMT_YUV444P;
1120  } else if (s->subsampling[0] == 2 && s->subsampling[1] == 1) {
1121  s->avctx->pix_fmt = AV_PIX_FMT_YUV422P;
1122  } else if (s->subsampling[0] == 4 && s->subsampling[1] == 1) {
1123  s->avctx->pix_fmt = AV_PIX_FMT_YUV411P;
1124  } else if (s->subsampling[0] == 1 && s->subsampling[1] == 2) {
1125  s->avctx->pix_fmt = AV_PIX_FMT_YUV440P;
1126  } else if (s->subsampling[0] == 2 && s->subsampling[1] == 2) {
1127  s->avctx->pix_fmt = AV_PIX_FMT_YUV420P;
1128  } else if (s->subsampling[0] == 4 && s->subsampling[1] == 4) {
1129  s->avctx->pix_fmt = AV_PIX_FMT_YUV410P;
1130  } else {
1131  av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr subsampling\n");
1132  return AVERROR_PATCHWELCOME;
1133  }
1134  } else
1135  s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
1136  break;
1137  case 161:
1138  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
1139  break;
1140  case 162:
1141  s->avctx->pix_fmt = AV_PIX_FMT_YA8;
1142  break;
1143  case 322:
1144  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_YA16LE : AV_PIX_FMT_YA16BE;
1145  break;
1146  case 324:
1147  s->avctx->pix_fmt = s->photometric == TIFF_PHOTOMETRIC_SEPARATED ? AV_PIX_FMT_RGB0 : AV_PIX_FMT_RGBA;
1148  break;
1149  case 405:
1150  if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED)
1151  s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
1152  else {
1153  av_log(s->avctx, AV_LOG_ERROR,
1154  "bpp=40 without PHOTOMETRIC_SEPARATED is unsupported\n");
1155  return AVERROR_PATCHWELCOME;
1156  }
1157  break;
1158  case 483:
1159  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
1160  break;
1161  case 644:
1162  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
1163  break;
1164  case 10243:
1165  s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
1166  break;
1167  case 10324:
1168  s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
1169  break;
1170  case 10483:
1171  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE;
1172  break;
1173  case 10644:
1174  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE;
1175  break;
1176  case 963:
1177  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBF32LE : AV_PIX_FMT_RGBF32BE;
1178  break;
1179  case 1284:
1180  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBAF32LE : AV_PIX_FMT_RGBAF32BE;
1181  break;
1182  case 10963:
1183  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRPF32LE : AV_PIX_FMT_GBRPF32BE;
1184  break;
1185  case 11284:
1186  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAPF32LE : AV_PIX_FMT_GBRAPF32BE;
1187  break;
1188  default:
1189  av_log(s->avctx, AV_LOG_ERROR,
1190  "This format is not supported (bpp=%d, bppcount=%d)\n",
1191  s->bpp, s->bppcount);
1192  return AVERROR_INVALIDDATA;
1193  }
1194 
1195  if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1196  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
1197  if((desc->flags & AV_PIX_FMT_FLAG_RGB) ||
1198  !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) ||
1199  desc->nb_components < 3) {
1200  av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr variant\n");
1201  return AVERROR_INVALIDDATA;
1202  }
1203  }
1204 
1205  if (s->width != s->avctx->width || s->height != s->avctx->height) {
1206  ret = ff_set_dimensions(s->avctx, s->width, s->height);
1207  if (ret < 0)
1208  return ret;
1209  }
1210 
1211  if (s->avctx->skip_frame >= AVDISCARD_ALL)
1212  return 0;
1213 
1214  if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
1215  return ret;
1216  if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
1217  if (!create_gray_palette)
1218  memcpy(frame->data[1], s->palette, sizeof(s->palette));
1219  else {
1220  /* make default grayscale pal */
1221  int i;
1222  uint32_t *pal = (uint32_t *)frame->data[1];
1223  for (i = 0; i < 1<<s->bpp; i++)
1224  pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
1225  }
1226  }
1227  return 1;
1228 }
1229 
1230 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
1231 {
1232  int offset = tag == TIFF_YRES ? 2 : 0;
1233  s->res[offset++] = num;
1234  s->res[offset] = den;
1235  if (s->res[0] && s->res[1] && s->res[2] && s->res[3]) {
1236  uint64_t num = s->res[2] * (uint64_t)s->res[1];
1237  uint64_t den = s->res[0] * (uint64_t)s->res[3];
1238  if (num > INT64_MAX || den > INT64_MAX) {
1239  num = num >> 1;
1240  den = den >> 1;
1241  }
1242  av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den,
1243  num, den, INT32_MAX);
1244  if (!s->avctx->sample_aspect_ratio.den)
1245  s->avctx->sample_aspect_ratio = (AVRational) {0, 1};
1246  }
1247 }
1248 
1249 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
1250 {
1251  AVFrameSideData *sd;
1252  GetByteContext gb_temp;
1253  unsigned tag, type, count, off, value = 0, value2 = 1; // value2 is a denominator so init. to 1
1254  int i, start;
1255  int pos;
1256  int ret;
1257  double *dp;
1258 
1259  ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
1260  if (ret < 0) {
1261  goto end;
1262  }
1263  if (tag <= s->last_tag)
1264  return AVERROR_INVALIDDATA;
1265 
1266  // We ignore TIFF_STRIP_SIZE as it is sometimes in the logic but wrong order around TIFF_STRIP_OFFS
1267  if (tag != TIFF_STRIP_SIZE)
1268  s->last_tag = tag;
1269 
1270  off = bytestream2_tell(&s->gb);
1271  if (count == 1) {
1272  switch (type) {
1273  case TIFF_BYTE:
1274  case TIFF_SHORT:
1275  case TIFF_LONG:
1276  value = ff_tget(&s->gb, type, s->le);
1277  break;
1278  case TIFF_RATIONAL:
1279  value = ff_tget_long(&s->gb, s->le);
1280  value2 = ff_tget_long(&s->gb, s->le);
1281  if (!value2) {
1282  av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator in rational\n");
1283  value2 = 1;
1284  }
1285 
1286  break;
1287  case TIFF_STRING:
1288  if (count <= 4) {
1289  break;
1290  }
1291  default:
1292  value = UINT_MAX;
1293  }
1294  }
1295 
1296  switch (tag) {
1297  case TIFF_SUBFILE:
1298  s->is_thumbnail = (value != 0);
1299  break;
1300  case TIFF_WIDTH:
1301  if (value > INT_MAX)
1302  return AVERROR_INVALIDDATA;
1303  s->width = value;
1304  break;
1305  case TIFF_HEIGHT:
1306  if (value > INT_MAX)
1307  return AVERROR_INVALIDDATA;
1308  s->height = value;
1309  break;
1310  case TIFF_BPP:
1311  if (count > 5 || count <= 0) {
1312  av_log(s->avctx, AV_LOG_ERROR,
1313  "This format is not supported (bpp=%d, %d components)\n",
1314  value, count);
1315  return AVERROR_INVALIDDATA;
1316  }
1317  s->bppcount = count;
1318  if (count == 1)
1319  s->bpp = value;
1320  else {
1321  switch (type) {
1322  case TIFF_BYTE:
1323  case TIFF_SHORT:
1324  case TIFF_LONG:
1325  s->bpp = 0;
1326  if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
1327  return AVERROR_INVALIDDATA;
1328  for (i = 0; i < count; i++)
1329  s->bpp += ff_tget(&s->gb, type, s->le);
1330  break;
1331  default:
1332  s->bpp = -1;
1333  }
1334  }
1335  break;
1336  case TIFF_SAMPLES_PER_PIXEL:
1337  if (count != 1) {
1338  av_log(s->avctx, AV_LOG_ERROR,
1339  "Samples per pixel requires a single value, many provided\n");
1340  return AVERROR_INVALIDDATA;
1341  }
1342  if (value > 5 || value <= 0) {
1343  av_log(s->avctx, AV_LOG_ERROR,
1344  "Invalid samples per pixel %d\n", value);
1345  return AVERROR_INVALIDDATA;
1346  }
1347  if (s->bppcount == 1)
1348  s->bpp *= value;
1349  s->bppcount = value;
1350  break;
1351  case TIFF_COMPR:
1352  s->compr = value;
1353  av_log(s->avctx, AV_LOG_DEBUG, "compression: %d\n", s->compr);
1354  s->predictor = 0;
1355  switch (s->compr) {
1356  case TIFF_RAW:
1357  case TIFF_PACKBITS:
1358  case TIFF_LZW:
1359  case TIFF_CCITT_RLE:
1360  break;
1361  case TIFF_G3:
1362  case TIFF_G4:
1363  s->fax_opts = 0;
1364  break;
1365  case TIFF_DEFLATE:
1366  case TIFF_ADOBE_DEFLATE:
1367 #if CONFIG_ZLIB
1368  break;
1369 #else
1370  av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
1371  return AVERROR(ENOSYS);
1372 #endif
1373  case TIFF_JPEG:
1374  case TIFF_NEWJPEG:
1375  s->is_jpeg = 1;
1376  break;
1377  case TIFF_LZMA:
1378 #if CONFIG_LZMA
1379  break;
1380 #else
1381  av_log(s->avctx, AV_LOG_ERROR, "LZMA not compiled in\n");
1382  return AVERROR(ENOSYS);
1383 #endif
1384  default:
1385  av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
1386  s->compr);
1387  return AVERROR_INVALIDDATA;
1388  }
1389  break;
1390  case TIFF_ROWSPERSTRIP:
1391  if (!value || (type == TIFF_LONG && value == UINT_MAX))
1392  value = s->height;
1393  s->rps = FFMIN(value, s->height);
1394  break;
1395  case TIFF_STRIP_OFFS:
1396  if (count == 1) {
1397  if (value > INT_MAX) {
1398  av_log(s->avctx, AV_LOG_ERROR,
1399  "strippos %u too large\n", value);
1400  return AVERROR_INVALIDDATA;
1401  }
1402  s->strippos = 0;
1403  s->stripoff = value;
1404  } else
1405  s->strippos = off;
1406  s->strips = count;
1407  if (s->strips == s->bppcount)
1408  s->rps = s->height;
1409  s->sot = type;
1410  break;
1411  case TIFF_STRIP_SIZE:
1412  if (count == 1) {
1413  if (value > INT_MAX) {
1414  av_log(s->avctx, AV_LOG_ERROR,
1415  "stripsize %u too large\n", value);
1416  return AVERROR_INVALIDDATA;
1417  }
1418  s->stripsizesoff = 0;
1419  s->stripsize = value;
1420  s->strips = 1;
1421  } else {
1422  s->stripsizesoff = off;
1423  }
1424  s->strips = count;
1425  s->sstype = type;
1426  break;
1427  case TIFF_XRES:
1428  case TIFF_YRES:
1429  set_sar(s, tag, value, value2);
1430  break;
1431  case TIFF_TILE_OFFSETS:
1432  s->tile_offsets_offset = off;
1433  s->is_tiled = 1;
1434  break;
1435  case TIFF_TILE_BYTE_COUNTS:
1436  s->tile_byte_counts_offset = off;
1437  break;
1438  case TIFF_TILE_LENGTH:
1439  if (value > INT_MAX)
1440  return AVERROR_INVALIDDATA;
1441  s->tile_length = value;
1442  break;
1443  case TIFF_TILE_WIDTH:
1444  if (value > INT_MAX)
1445  return AVERROR_INVALIDDATA;
1446  s->tile_width = value;
1447  break;
1448  case TIFF_PREDICTOR:
1449  if (value > INT_MAX)
1450  return AVERROR_INVALIDDATA;
1451  s->predictor = value;
1452  break;
1453  case TIFF_SUB_IFDS:
1454  if (count == 1)
1455  s->sub_ifd = value;
1456  else if (count > 1)
1457  s->sub_ifd = ff_tget_long(&s->gb, s->le); /** Only get the first SubIFD */
1458  break;
1459  case TIFF_GRAY_RESPONSE_CURVE:
1460  case DNG_LINEARIZATION_TABLE:
1461  if (count < 1 || count > FF_ARRAY_ELEMS(s->dng_lut))
1462  return AVERROR_INVALIDDATA;
1463  for (int i = 0; i < count; i++)
1464  s->dng_lut[i] = ff_tget(&s->gb, type, s->le);
1465  s->white_level = s->dng_lut[count-1];
1466  break;
1467  case DNG_BLACK_LEVEL:
1468  if (count > FF_ARRAY_ELEMS(s->black_level))
1469  return AVERROR_INVALIDDATA;
1470  s->black_level[0] = value / (float)value2;
1471  for (int i = 0; i < count && count > 1; i++) {
1472  if (type == TIFF_RATIONAL) {
1473  value = ff_tget_long(&s->gb, s->le);
1474  value2 = ff_tget_long(&s->gb, s->le);
1475  if (!value2) {
1476  av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1477  value2 = 1;
1478  }
1479 
1480  s->black_level[i] = value / (float)value2;
1481  } else if (type == TIFF_SRATIONAL) {
1482  int value = ff_tget_long(&s->gb, s->le);
1483  int value2 = ff_tget_long(&s->gb, s->le);
1484  if (!value2) {
1485  av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1486  value2 = 1;
1487  }
1488 
1489  s->black_level[i] = value / (float)value2;
1490  } else {
1491  s->black_level[i] = ff_tget(&s->gb, type, s->le);
1492  }
1493  }
1494  for (int i = count; i < 4 && count > 0; i++)
1495  s->black_level[i] = s->black_level[count - 1];
1496  break;
1497  case DNG_WHITE_LEVEL:
1498  s->white_level = value;
1499  break;
1500  case TIFF_CFA_PATTERN_DIM:
1501  if (count != 2 || (ff_tget(&s->gb, type, s->le) != 2 &&
1502  ff_tget(&s->gb, type, s->le) != 2)) {
1503  av_log(s->avctx, AV_LOG_ERROR, "CFA Pattern dimensions are not 2x2\n");
1504  return AVERROR_INVALIDDATA;
1505  }
1506  break;
1507  case TIFF_CFA_PATTERN:
1508  s->is_bayer = 1;
1509  s->pattern[0] = ff_tget(&s->gb, type, s->le);
1510  s->pattern[1] = ff_tget(&s->gb, type, s->le);
1511  s->pattern[2] = ff_tget(&s->gb, type, s->le);
1512  s->pattern[3] = ff_tget(&s->gb, type, s->le);
1513  break;
1514  case TIFF_PHOTOMETRIC:
1515  switch (value) {
1516  case TIFF_PHOTOMETRIC_WHITE_IS_ZERO:
1517  case TIFF_PHOTOMETRIC_BLACK_IS_ZERO:
1518  case TIFF_PHOTOMETRIC_RGB:
1519  case TIFF_PHOTOMETRIC_PALETTE:
1520  case TIFF_PHOTOMETRIC_SEPARATED:
1521  case TIFF_PHOTOMETRIC_YCBCR:
1522  case TIFF_PHOTOMETRIC_CFA:
1523  case TIFF_PHOTOMETRIC_LINEAR_RAW: // Used by DNG images
1524  s->photometric = value;
1525  break;
1526  case TIFF_PHOTOMETRIC_ALPHA_MASK:
1527  case TIFF_PHOTOMETRIC_CIE_LAB:
1528  case TIFF_PHOTOMETRIC_ICC_LAB:
1529  case TIFF_PHOTOMETRIC_ITU_LAB:
1530  case TIFF_PHOTOMETRIC_LOG_L:
1531  case TIFF_PHOTOMETRIC_LOG_LUV:
1532  avpriv_report_missing_feature(s->avctx,
1533  "PhotometricInterpretation 0x%04X",
1534  value);
1535  return AVERROR_PATCHWELCOME;
1536  default:
1537  av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
1538  "unknown\n", value);
1539  return AVERROR_INVALIDDATA;
1540  }
1541  break;
1542  case TIFF_FILL_ORDER:
1543  if (value < 1 || value > 2) {
1544  av_log(s->avctx, AV_LOG_ERROR,
1545  "Unknown FillOrder value %d, trying default one\n", value);
1546  value = 1;
1547  }
1548  s->fill_order = value - 1;
1549  break;
1550  case TIFF_PAL: {
1551  GetByteContext pal_gb[3];
1552  off = type_sizes[type];
1553  if (count / 3 > 256 ||
1554  bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
1555  return AVERROR_INVALIDDATA;
1556 
1557  pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
1558  bytestream2_skip(&pal_gb[1], count / 3 * off);
1559  bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
1560 
1561  off = (type_sizes[type] - 1) << 3;
1562  if (off > 31U) {
1563  av_log(s->avctx, AV_LOG_ERROR, "palette shift %d is out of range\n", off);
1564  return AVERROR_INVALIDDATA;
1565  }
1566 
1567  for (i = 0; i < count / 3; i++) {
1568  uint32_t p = 0xFF000000;
1569  p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
1570  p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
1571  p |= ff_tget(&pal_gb[2], type, s->le) >> off;
1572  s->palette[i] = p;
1573  }
1574  s->palette_is_set = 1;
1575  break;
1576  }
1577  case TIFF_PLANAR:
1578  s->planar = value == 2;
1579  break;
1580  case TIFF_YCBCR_SUBSAMPLING:
1581  if (count != 2) {
1582  av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n");
1583  return AVERROR_INVALIDDATA;
1584  }
1585  for (i = 0; i < count; i++) {
1586  s->subsampling[i] = ff_tget(&s->gb, type, s->le);
1587  if (s->subsampling[i] <= 0) {
1588  av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]);
1589  s->subsampling[i] = 1;
1590  return AVERROR_INVALIDDATA;
1591  }
1592  }
1593  break;
1594  case TIFF_T4OPTIONS:
1595  if (s->compr == TIFF_G3) {
1596  if (value > INT_MAX)
1597  return AVERROR_INVALIDDATA;
1598  s->fax_opts = value;
1599  }
1600  break;
1601  case TIFF_T6OPTIONS:
1602  if (s->compr == TIFF_G4) {
1603  if (value > INT_MAX)
1604  return AVERROR_INVALIDDATA;
1605  s->fax_opts = value;
1606  }
1607  break;
1608 #define ADD_METADATA(count, name, sep)\
1609  if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
1610  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
1611  goto end;\
1612  }
1613  case TIFF_MODEL_PIXEL_SCALE:
1614  ADD_METADATA(count, "ModelPixelScaleTag", NULL);
1615  break;
1616  case TIFF_MODEL_TRANSFORMATION:
1617  ADD_METADATA(count, "ModelTransformationTag", NULL);
1618  break;
1619  case TIFF_MODEL_TIEPOINT:
1620  ADD_METADATA(count, "ModelTiepointTag", NULL);
1621  break;
1622  case TIFF_GEO_KEY_DIRECTORY:
1623  if (s->geotag_count) {
1624  avpriv_request_sample(s->avctx, "Multiple geo key directories");
1625  return AVERROR_INVALIDDATA;
1626  }
1627  ADD_METADATA(1, "GeoTIFF_Version", NULL);
1628  ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
1629  s->geotag_count = ff_tget_short(&s->gb, s->le);
1630  if (s->geotag_count > count / 4 - 1) {
1631  s->geotag_count = count / 4 - 1;
1632  av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
1633  }
1634  if ( bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4
1635  || s->geotag_count == 0) {
1636  s->geotag_count = 0;
1637  return -1;
1638  }
1639  s->geotags = av_calloc(s->geotag_count, sizeof(*s->geotags));
1640  if (!s->geotags) {
1641  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1642  s->geotag_count = 0;
1643  goto end;
1644  }
1645  for (i = 0; i < s->geotag_count; i++) {
1646  unsigned val;
1647  s->geotags[i].key = ff_tget_short(&s->gb, s->le);
1648  s->geotags[i].type = ff_tget_short(&s->gb, s->le);
1649  s->geotags[i].count = ff_tget_short(&s->gb, s->le);
1650  val = ff_tget_short(&s->gb, s->le);
1651 
1652  if (!s->geotags[i].type) {
1653  const char *str = get_geokey_val(s->geotags[i].key, val);
1654 
1655  s->geotags[i].val = str ? av_strdup(str) : av_asprintf("Unknown-%u", val);
1656  if (!s->geotags[i].val)
1657  return AVERROR(ENOMEM);
1658  } else
1659  s->geotags[i].offset = val;
1660  }
1661  break;
1662  case TIFF_GEO_DOUBLE_PARAMS:
1663  if (count >= INT_MAX / sizeof(int64_t))
1664  return AVERROR_INVALIDDATA;
1665  if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
1666  return AVERROR_INVALIDDATA;
1667  dp = av_malloc_array(count, sizeof(double));
1668  if (!dp) {
1669  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1670  goto end;
1671  }
1672  for (i = 0; i < count; i++)
1673  dp[i] = ff_tget_double(&s->gb, s->le);
1674  for (i = 0; i < s->geotag_count; i++) {
1675  if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
1676  if (s->geotags[i].count == 0
1677  || s->geotags[i].offset + s->geotags[i].count > count) {
1678  av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1679  } else if (s->geotags[i].val) {
1680  av_log(s->avctx, AV_LOG_WARNING, "Duplicate GeoTIFF key %d\n", s->geotags[i].key);
1681  } else {
1682  char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
1683  if (!ap) {
1684  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1685  av_freep(&dp);
1686  return AVERROR(ENOMEM);
1687  }
1688  s->geotags[i].val = ap;
1689  }
1690  }
1691  }
1692  av_freep(&dp);
1693  break;
1694  case TIFF_GEO_ASCII_PARAMS:
1695  pos = bytestream2_tell(&s->gb);
1696  for (i = 0; i < s->geotag_count; i++) {
1697  if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
1698  if (s->geotags[i].count == 0
1699  || s->geotags[i].offset + s->geotags[i].count > count) {
1700  av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1701  } else {
1702  char *ap;
1703 
1704  bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
1705  if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
1706  return AVERROR_INVALIDDATA;
1707  if (s->geotags[i].val)
1708  return AVERROR_INVALIDDATA;
1709  ap = av_malloc(s->geotags[i].count);
1710  if (!ap) {
1711  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1712  return AVERROR(ENOMEM);
1713  }
1714  bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
1715  ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
1716  s->geotags[i].val = ap;
1717  }
1718  }
1719  }
1720  break;
1721  case TIFF_ICC_PROFILE:
1722  gb_temp = s->gb;
1723  bytestream2_seek(&gb_temp, off, SEEK_SET);
1724 
1725  if (bytestream2_get_bytes_left(&gb_temp) < count)
1726  return AVERROR_INVALIDDATA;
1727 
1728  ret = ff_frame_new_side_data(s->avctx, frame, AV_FRAME_DATA_ICC_PROFILE, count, &sd);
1729  if (ret < 0)
1730  return ret;
1731  if (sd)
1732  bytestream2_get_bufferu(&gb_temp, sd->data, count);
1733  break;
1734  case TIFF_ARTIST:
1735  ADD_METADATA(count, "artist", NULL);
1736  break;
1737  case TIFF_COPYRIGHT:
1738  ADD_METADATA(count, "copyright", NULL);
1739  break;
1740  case TIFF_DATE:
1741  ADD_METADATA(count, "date", NULL);
1742  break;
1743  case TIFF_DOCUMENT_NAME:
1744  ADD_METADATA(count, "document_name", NULL);
1745  break;
1746  case TIFF_HOST_COMPUTER:
1747  ADD_METADATA(count, "computer", NULL);
1748  break;
1749  case TIFF_IMAGE_DESCRIPTION:
1750  ADD_METADATA(count, "description", NULL);
1751  break;
1752  case TIFF_MAKE:
1753  ADD_METADATA(count, "make", NULL);
1754  break;
1755  case TIFF_MODEL:
1756  ADD_METADATA(count, "model", NULL);
1757  break;
1758  case TIFF_PAGE_NAME:
1759  ADD_METADATA(count, "page_name", NULL);
1760  break;
1761  case TIFF_PAGE_NUMBER:
1762  ADD_METADATA(count, "page_number", " / ");
1763  // need to seek back to re-read the page number
1764  bytestream2_seek(&s->gb, -count * sizeof(uint16_t), SEEK_CUR);
1765  // read the page number
1766  s->cur_page = ff_tget_short(&s->gb, s->le);
1767  // get back to where we were before the previous seek
1768  bytestream2_seek(&s->gb, count * sizeof(uint16_t) - sizeof(uint16_t), SEEK_CUR);
1769  break;
1770  case TIFF_SOFTWARE_NAME:
1771  ADD_METADATA(count, "software", NULL);
1772  break;
1773  case DNG_VERSION:
1774  if (count == 4) {
1775  unsigned int ver[4];
1776  ver[0] = ff_tget(&s->gb, type, s->le);
1777  ver[1] = ff_tget(&s->gb, type, s->le);
1778  ver[2] = ff_tget(&s->gb, type, s->le);
1779  ver[3] = ff_tget(&s->gb, type, s->le);
1780 
1781  av_log(s->avctx, AV_LOG_DEBUG, "DNG file, version %u.%u.%u.%u\n",
1782  ver[0], ver[1], ver[2], ver[3]);
1783 
1784  tiff_set_type(s, TIFF_TYPE_DNG);
1785  }
1786  break;
1787  case DNG_ANALOG_BALANCE:
1788  if (type != TIFF_RATIONAL)
1789  break;
1790 
1791  for (int i = 0; i < 3; i++) {
1792  value = ff_tget_long(&s->gb, s->le);
1793  value2 = ff_tget_long(&s->gb, s->le);
1794  if (!value2) {
1795  av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1796  value2 = 1;
1797  }
1798 
1799  s->analog_balance[i] = value / (float)value2;
1800  }
1801  break;
1802  case DNG_AS_SHOT_NEUTRAL:
1803  if (type != TIFF_RATIONAL)
1804  break;
1805 
1806  for (int i = 0; i < 3; i++) {
1807  value = ff_tget_long(&s->gb, s->le);
1808  value2 = ff_tget_long(&s->gb, s->le);
1809  if (!value2) {
1810  av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1811  value2 = 1;
1812  }
1813 
1814  s->as_shot_neutral[i] = value / (float)value2;
1815  }
1816  break;
1817  case DNG_AS_SHOT_WHITE_XY:
1818  if (type != TIFF_RATIONAL)
1819  break;
1820 
1821  for (int i = 0; i < 2; i++) {
1822  value = ff_tget_long(&s->gb, s->le);
1823  value2 = ff_tget_long(&s->gb, s->le);
1824  if (!value2) {
1825  av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1826  value2 = 1;
1827  }
1828 
1829  s->as_shot_white[i] = value / (float)value2;
1830  }
1831  s->as_shot_white[2] = 1.f - s->as_shot_white[0] - s->as_shot_white[1];
1832  for (int i = 0; i < 3; i++) {
1833  s->as_shot_white[i] /= d65_white[i];
1834  }
1835  break;
1836  case DNG_COLOR_MATRIX1:
1837  case DNG_COLOR_MATRIX2:
1838  for (int i = 0; i < 3; i++) {
1839  for (int j = 0; j < 3; j++) {
1840  int value = ff_tget_long(&s->gb, s->le);
1841  int value2 = ff_tget_long(&s->gb, s->le);
1842  if (!value2) {
1843  av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1844  value2 = 1;
1845  }
1846  s->color_matrix[i][j] = value / (float)value2;
1847  }
1848  s->use_color_matrix = 1;
1849  }
1850  break;
1851  case DNG_CAMERA_CALIBRATION1:
1852  case DNG_CAMERA_CALIBRATION2:
1853  for (int i = 0; i < 3; i++) {
1854  for (int j = 0; j < 3; j++) {
1855  int value = ff_tget_long(&s->gb, s->le);
1856  int value2 = ff_tget_long(&s->gb, s->le);
1857  if (!value2) {
1858  av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1859  value2 = 1;
1860  }
1861  s->camera_calibration[i][j] = value / (float)value2;
1862  }
1863  }
1864  break;
1865  case CINEMADNG_TIME_CODES:
1866  case CINEMADNG_FRAME_RATE:
1867  case CINEMADNG_T_STOP:
1868  case CINEMADNG_REEL_NAME:
1869  case CINEMADNG_CAMERA_LABEL:
1870  tiff_set_type(s, TIFF_TYPE_CINEMADNG);
1871  break;
1872  default:
1873  if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1874  av_log(s->avctx, AV_LOG_ERROR,
1875  "Unknown or unsupported tag %d/0x%0X\n",
1876  tag, tag);
1877  return AVERROR_INVALIDDATA;
1878  }
1879  }
1880 end:
1881  if (s->bpp > 128U) {
1882  av_log(s->avctx, AV_LOG_ERROR,
1883  "This format is not supported (bpp=%d, %d components)\n",
1884  s->bpp, count);
1885  s->bpp = 0;
1886  return AVERROR_INVALIDDATA;
1887  }
1888  bytestream2_seek(&s->gb, start, SEEK_SET);
1889  return 0;
1890 }
1891 
1892 static const float xyz2rgb[3][3] = {
1893  { 0.412453f, 0.357580f, 0.180423f },
1894  { 0.212671f, 0.715160f, 0.072169f },
1895  { 0.019334f, 0.119193f, 0.950227f },
1896 };
1897 
1898 static void camera_xyz_coeff(TiffContext *s,
1899  float rgb2cam[3][4],
1900  double cam2xyz[4][3])
1901 {
1902  double cam2rgb[4][3], num;
1903  int i, j, k;
1904 
1905  for (i = 0; i < 3; i++) {
1906  for (j = 0; j < 3; j++) {
1907  cam2rgb[i][j] = 0.;
1908  for (k = 0; k < 3; k++)
1909  cam2rgb[i][j] += cam2xyz[i][k] * xyz2rgb[k][j];
1910  }
1911  }
1912 
1913  for (i = 0; i < 3; i++) {
1914  for (num = j = 0; j < 3; j++)
1915  num += cam2rgb[i][j];
1916  if (!num)
1917  num = 1;
1918  for (j = 0; j < 3; j++)
1919  cam2rgb[i][j] /= num;
1920  s->premultiply[i] = 1.f / num;
1921  }
1922 }
1923 
1924 static int decode_frame(AVCodecContext *avctx, AVFrame *p,
1925  int *got_frame, AVPacket *avpkt)
1926 {
1927  TiffContext *const s = avctx->priv_data;
1928  unsigned off, last_off = 0;
1929  int le, ret, plane, planes;
1930  int i, j, entries, stride;
1931  unsigned soff, ssize;
1932  uint8_t *dst;
1933  GetByteContext stripsizes;
1934  GetByteContext stripdata;
1935  int retry_for_subifd, retry_for_page;
1936  int is_dng;
1937  int has_tile_bits, has_strip_bits;
1938 
1939  bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1940 
1941  // parse image header
1942  if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
1943  av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
1944  return ret;
1945  } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1946  av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1947  return AVERROR_INVALIDDATA;
1948  }
1949  s->le = le;
1950  // TIFF_BPP is not a required tag and defaults to 1
1951 
1952  s->tiff_type = TIFF_TYPE_TIFF;
1953  s->use_color_matrix = 0;
1954 again:
1955  s->is_thumbnail = 0;
1956  s->bppcount = s->bpp = 1;
1957  s->photometric = TIFF_PHOTOMETRIC_NONE;
1958  s->compr = TIFF_RAW;
1959  s->fill_order = 0;
1960  s->white_level = 0;
1961  s->is_bayer = 0;
1962  s->is_tiled = 0;
1963  s->is_jpeg = 0;
1964  s->cur_page = 0;
1965  s->last_tag = 0;
1966 
1967  for (i = 0; i < 65536; i++)
1968  s->dng_lut[i] = i;
1969 
1970  for (i = 0; i < FF_ARRAY_ELEMS(s->black_level); i++)
1971  s->black_level[i] = 0.f;
1972 
1973  for (i = 0; i < FF_ARRAY_ELEMS(s->as_shot_neutral); i++)
1974  s->as_shot_neutral[i] = 0.f;
1975 
1976  for (i = 0; i < FF_ARRAY_ELEMS(s->as_shot_white); i++)
1977  s->as_shot_white[i] = 1.f;
1978 
1979  for (i = 0; i < FF_ARRAY_ELEMS(s->analog_balance); i++)
1980  s->analog_balance[i] = 1.f;
1981 
1982  for (i = 0; i < FF_ARRAY_ELEMS(s->premultiply); i++)
1983  s->premultiply[i] = 1.f;
1984 
1985  for (i = 0; i < 4; i++)
1986  for (j = 0; j < 4; j++)
1987  s->camera_calibration[i][j] = i == j;
1988 
1989  free_geotags(s);
1990 
1991  // Reset these offsets so we can tell if they were set this frame
1992  s->stripsizesoff = s->strippos = 0;
1993  /* parse image file directory */
1994  bytestream2_seek(&s->gb, off, SEEK_SET);
1995  entries = ff_tget_short(&s->gb, le);
1996  if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1997  return AVERROR_INVALIDDATA;
1998  for (i = 0; i < entries; i++) {
1999  if ((ret = tiff_decode_tag(s, p)) < 0)
2000  return ret;
2001  }
2002 
2003  if (s->get_thumbnail && !s->is_thumbnail) {
2004  av_log(avctx, AV_LOG_INFO, "No embedded thumbnail present\n");
2005  return AVERROR_EOF;
2006  }
2007 
2008  /** whether we should process this IFD's SubIFD */
2009  retry_for_subifd = s->sub_ifd && (s->get_subimage || (!s->get_thumbnail && s->is_thumbnail));
2010  /** whether we should process this multi-page IFD's next page */
2011  retry_for_page = s->get_page && s->cur_page + 1 < s->get_page; // get_page is 1-indexed
2012 
2013  if (retry_for_page) {
2014  // set offset to the next IFD
2015  off = ff_tget_long(&s->gb, le);
2016  } else if (retry_for_subifd) {
2017  // set offset to the SubIFD
2018  off = s->sub_ifd;
2019  }
2020 
2021  if (retry_for_subifd || retry_for_page) {
2022  if (!off) {
2023  av_log(avctx, AV_LOG_ERROR, "Requested entry not found\n");
2024  return AVERROR_INVALIDDATA;
2025  }
2026  if (off <= last_off) {
2027  avpriv_request_sample(s->avctx, "non increasing IFD offset");
2028  return AVERROR_INVALIDDATA;
2029  }
2030  last_off = off;
2031  if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
2032  av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
2033  return AVERROR_INVALIDDATA;
2034  }
2035  s->sub_ifd = 0;
2036  goto again;
2037  }
2038 
2039  /* At this point we've decided on which (Sub)IFD to process */
2040 
2041  is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
2042 
2043  for (i = 0; i<s->geotag_count; i++) {
2044  const char *keyname = get_geokey_name(s->geotags[i].key);
2045  if (!keyname) {
2046  av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
2047  continue;
2048  }
2049  if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
2050  av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
2051  continue;
2052  }
2053  ret = av_dict_set(&p->metadata, keyname, s->geotags[i].val, AV_DICT_DONT_STRDUP_VAL);
2054  s->geotags[i].val = NULL;
2055  if (ret<0) {
2056  av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
2057  return ret;
2058  }
2059  }
2060 
2061  if (is_dng) {
2062  double cam2xyz[4][3];
2063  float cmatrix[3][4];
2064  float pmin = FLT_MAX;
2065  int bps;
2066 
2067  for (i = 0; i < 3; i++) {
2068  for (j = 0; j < 3; j++)
2069  s->camera_calibration[i][j] *= s->analog_balance[i];
2070  }
2071 
2072  if (!s->use_color_matrix) {
2073  for (i = 0; i < 3; i++) {
2074  if (s->camera_calibration[i][i])
2075  s->premultiply[i] /= s->camera_calibration[i][i];
2076  }
2077  } else {
2078  for (int c = 0; c < 3; c++) {
2079  for (i = 0; i < 3; i++) {
2080  cam2xyz[c][i] = 0.;
2081  for (j = 0; j < 3; j++)
2082  cam2xyz[c][i] += s->camera_calibration[c][j] * s->color_matrix[j][i] * s->as_shot_white[i];
2083  }
2084  }
2085 
2086  camera_xyz_coeff(s, cmatrix, cam2xyz);
2087  }
2088 
2089  for (int c = 0; c < 3; c++)
2090  pmin = fminf(pmin, s->premultiply[c]);
2091 
2092  for (int c = 0; c < 3; c++)
2093  s->premultiply[c] /= pmin;
2094 
2095  if (s->bpp % s->bppcount)
2096  return AVERROR_INVALIDDATA;
2097  bps = s->bpp / s->bppcount;
2098  if (bps < 8 || bps > 32)
2099  return AVERROR_INVALIDDATA;
2100 
2101  if (s->white_level == 0)
2102  s->white_level = (1LL << bps) - 1; /* Default value as per the spec */
2103 
2104  if (s->white_level <= s->black_level[0]) {
2105  av_log(avctx, AV_LOG_ERROR, "BlackLevel (%g) must be less than WhiteLevel (%"PRId32")\n",
2106  s->black_level[0], s->white_level);
2107  return AVERROR_INVALIDDATA;
2108  }
2109 
2110  if (s->planar)
2111  return AVERROR_PATCHWELCOME;
2112  }
2113 
2114  if (!s->is_tiled && !s->strippos && !s->stripoff) {
2115  av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
2116  return AVERROR_INVALIDDATA;
2117  }
2118 
2119  has_tile_bits = s->is_tiled || s->tile_byte_counts_offset || s->tile_offsets_offset || s->tile_width || s->tile_length;
2120  has_strip_bits = s->strippos || s->strips || s->stripoff || s->rps || s->sot || s->sstype || s->stripsize || s->stripsizesoff;
2121 
2122  if (has_tile_bits && has_strip_bits) {
2123  int tiled_dng = s->is_tiled && is_dng;
2124  av_log(avctx, tiled_dng ? AV_LOG_WARNING : AV_LOG_ERROR, "Tiled TIFF is not allowed to strip\n");
2125  if (!tiled_dng)
2126  return AVERROR_INVALIDDATA;
2127  }
2128 
2129  /* now we have the data and may start decoding */
2130  if ((ret = init_image(s, p)) <= 0)
2131  return ret;
2132 
2133  if (!s->is_tiled || has_strip_bits) {
2134  if (s->strips == 1 && !s->stripsize) {
2135  av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
2136  s->stripsize = avpkt->size - s->stripoff;
2137  }
2138 
2139  if (s->stripsizesoff) {
2140  if (s->stripsizesoff >= (unsigned)avpkt->size)
2141  return AVERROR_INVALIDDATA;
2142  bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
2143  avpkt->size - s->stripsizesoff);
2144  }
2145  if (s->strippos) {
2146  if (s->strippos >= (unsigned)avpkt->size)
2147  return AVERROR_INVALIDDATA;
2148  bytestream2_init(&stripdata, avpkt->data + s->strippos,
2149  avpkt->size - s->strippos);
2150  }
2151 
2152  if (s->rps <= 0 || s->rps % s->subsampling[1]) {
2153  av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
2154  return AVERROR_INVALIDDATA;
2155  }
2156  }
2157 
2158  if (s->photometric == TIFF_PHOTOMETRIC_LINEAR_RAW ||
2159  s->photometric == TIFF_PHOTOMETRIC_CFA) {
2160  p->color_trc = AVCOL_TRC_LINEAR;
2161  } else if (s->photometric == TIFF_PHOTOMETRIC_BLACK_IS_ZERO) {
2162  p->color_trc = AVCOL_TRC_GAMMA22;
2163  }
2164 
2165  /* Handle DNG images with JPEG-compressed tiles */
2166 
2167  if (is_dng && s->is_tiled) {
2168  if (!s->is_jpeg) {
2169  avpriv_report_missing_feature(avctx, "DNG uncompressed tiled images");
2170  return AVERROR_PATCHWELCOME;
2171  } else if (!s->is_bayer) {
2172  avpriv_report_missing_feature(avctx, "DNG JPG-compressed tiled non-bayer-encoded images");
2173  return AVERROR_PATCHWELCOME;
2174  } else {
2175  if ((ret = dng_decode_tiles(avctx, p, avpkt)) > 0)
2176  *got_frame = 1;
2177  return ret;
2178  }
2179  }
2180 
2181  /* Handle TIFF images and DNG images with uncompressed strips (non-tiled) */
2182 
2183  planes = s->planar ? s->bppcount : 1;
2184  for (plane = 0; plane < planes; plane++) {
2185  uint8_t *five_planes = NULL;
2186  int remaining = avpkt->size;
2187  int decoded_height;
2188  stride = p->linesize[plane];
2189  dst = p->data[plane];
2190  if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2191  s->avctx->pix_fmt == AV_PIX_FMT_RGBA) {
2192  stride = stride * 5 / 4;
2193  five_planes =
2194  dst = av_malloc(stride * s->height);
2195  if (!dst)
2196  return AVERROR(ENOMEM);
2197  }
2198  for (i = 0; i < s->height; i += s->rps) {
2199  if (i)
2200  dst += s->rps * stride;
2201  if (s->stripsizesoff)
2202  ssize = ff_tget(&stripsizes, s->sstype, le);
2203  else
2204  ssize = s->stripsize;
2205 
2206  if (s->strippos)
2207  soff = ff_tget(&stripdata, s->sot, le);
2208  else
2209  soff = s->stripoff;
2210 
2211  if (soff > avpkt->size || ssize > avpkt->size - soff || ssize > remaining) {
2212  av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
2213  av_freep(&five_planes);
2214  return AVERROR_INVALIDDATA;
2215  }
2216  remaining -= ssize;
2217  if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i,
2218  FFMIN(s->rps, s->height - i))) < 0) {
2219  if (avctx->err_recognition & AV_EF_EXPLODE) {
2220  av_freep(&five_planes);
2221  return ret;
2222  }
2223  break;
2224  }
2225  }
2226  decoded_height = FFMIN(i, s->height);
2227 
2228  if (s->predictor == 2) {
2229  if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
2230  av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported");
2231  return AVERROR_PATCHWELCOME;
2232  }
2233  dst = five_planes ? five_planes : p->data[plane];
2234  soff = s->bpp >> 3;
2235  if (s->planar)
2236  soff = FFMAX(soff / s->bppcount, 1);
2237  ssize = s->width * soff;
2238  if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
2239  s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
2240  s->avctx->pix_fmt == AV_PIX_FMT_GRAY16LE ||
2241  s->avctx->pix_fmt == AV_PIX_FMT_YA16LE ||
2242  s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
2243  s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
2244  for (i = 0; i < decoded_height; i++) {
2245  for (j = soff; j < ssize; j += 2)
2246  AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
2247  dst += stride;
2248  }
2249  } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
2250  s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
2251  s->avctx->pix_fmt == AV_PIX_FMT_GRAY16BE ||
2252  s->avctx->pix_fmt == AV_PIX_FMT_YA16BE ||
2253  s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
2254  s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
2255  for (i = 0; i < decoded_height; i++) {
2256  for (j = soff; j < ssize; j += 2)
2257  AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
2258  dst += stride;
2259  }
2260  } else {
2261  for (i = 0; i < decoded_height; i++) {
2262  for (j = soff; j < ssize; j++)
2263  dst[j] += dst[j - soff];
2264  dst += stride;
2265  }
2266  }
2267  }
2268 
2269  /* Floating point predictor
2270  TIFF Technical Note 3 http://chriscox.org/TIFFTN3d1.pdf */
2271  if (s->predictor == 3) {
2272  int channels = s->bppcount;
2273  int group_size;
2274  uint8_t *tmpbuf;
2275  int bpc;
2276 
2277  dst = five_planes ? five_planes : p->data[plane];
2278  soff = s->bpp >> 3;
2279  if (s->planar) {
2280  soff = FFMAX(soff / s->bppcount, 1);
2281  channels = 1;
2282  }
2283  ssize = s->width * soff;
2284  bpc = FFMAX(soff / s->bppcount, 1); /* Bytes per component */
2285  group_size = s->width * channels;
2286 
2287  tmpbuf = av_malloc(ssize);
2288  if (!tmpbuf) {
2289  av_free(five_planes);
2290  return AVERROR(ENOMEM);
2291  }
2292 
2293  if (s->avctx->pix_fmt == AV_PIX_FMT_RGBF32LE ||
2294  s->avctx->pix_fmt == AV_PIX_FMT_RGBAF32LE) {
2295  for (i = 0; i < decoded_height; i++) {
2296  /* Copy first sample byte for each channel */
2297  for (j = 0; j < channels; j++)
2298  tmpbuf[j] = dst[j];
2299 
2300  /* Decode horizontal differences */
2301  for (j = channels; j < ssize; j++)
2302  tmpbuf[j] = dst[j] + tmpbuf[j-channels];
2303 
2304  /* Combine shuffled bytes from their separate groups. Each
2305  byte of every floating point value in a row of pixels is
2306  split and combined into separate groups. A group of all
2307  the sign/exponents bytes in the row and groups for each
2308  of the upper, mid, and lower mantissa bytes in the row. */
2309  for (j = 0; j < group_size; j++) {
2310  for (int k = 0; k < bpc; k++) {
2311  dst[bpc * j + k] = tmpbuf[(bpc - k - 1) * group_size + j];
2312  }
2313  }
2314  dst += stride;
2315  }
2316  } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGBF32BE ||
2317  s->avctx->pix_fmt == AV_PIX_FMT_RGBAF32BE) {
2318  /* Same as LE only the shuffle at the end is reversed */
2319  for (i = 0; i < decoded_height; i++) {
2320  for (j = 0; j < channels; j++)
2321  tmpbuf[j] = dst[j];
2322 
2323  for (j = channels; j < ssize; j++)
2324  tmpbuf[j] = dst[j] + tmpbuf[j-channels];
2325 
2326  for (j = 0; j < group_size; j++) {
2327  for (int k = 0; k < bpc; k++) {
2328  dst[bpc * j + k] = tmpbuf[k * group_size + j];
2329  }
2330  }
2331  dst += stride;
2332  }
2333  } else {
2334  av_log(s->avctx, AV_LOG_ERROR, "unsupported floating point pixel format\n");
2335  }
2336  av_free(tmpbuf);
2337  }
2338 
2339  if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) {
2340  int c = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255);
2341  dst = p->data[plane];
2342  for (i = 0; i < s->height; i++) {
2343  for (j = 0; j < stride; j++)
2344  dst[j] = c - dst[j];
2345  dst += stride;
2346  }
2347  }
2348 
2349  if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2350  (s->avctx->pix_fmt == AV_PIX_FMT_RGB0 || s->avctx->pix_fmt == AV_PIX_FMT_RGBA)) {
2351  int x = s->avctx->pix_fmt == AV_PIX_FMT_RGB0 ? 4 : 5;
2352  uint8_t *src = five_planes ? five_planes : p->data[plane];
2353  dst = p->data[plane];
2354  for (i = 0; i < s->height; i++) {
2355  for (j = 0; j < s->width; j++) {
2356  int k = 255 - src[x * j + 3];
2357  int r = (255 - src[x * j ]) * k;
2358  int g = (255 - src[x * j + 1]) * k;
2359  int b = (255 - src[x * j + 2]) * k;
2360  dst[4 * j ] = r * 257 >> 16;
2361  dst[4 * j + 1] = g * 257 >> 16;
2362  dst[4 * j + 2] = b * 257 >> 16;
2363  dst[4 * j + 3] = s->avctx->pix_fmt == AV_PIX_FMT_RGBA ? src[x * j + 4] : 255;
2364  }
2365  src += stride;
2366  dst += p->linesize[plane];
2367  }
2368  av_freep(&five_planes);
2369  } else if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2370  s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) {
2371  dst = p->data[plane];
2372  for (i = 0; i < s->height; i++) {
2373  for (j = 0; j < s->width; j++) {
2374  uint64_t k = 65535 - AV_RB16(dst + 8 * j + 6);
2375  uint64_t r = (65535 - AV_RB16(dst + 8 * j )) * k;
2376  uint64_t g = (65535 - AV_RB16(dst + 8 * j + 2)) * k;
2377  uint64_t b = (65535 - AV_RB16(dst + 8 * j + 4)) * k;
2378  AV_WB16(dst + 8 * j , r * 65537 >> 32);
2379  AV_WB16(dst + 8 * j + 2, g * 65537 >> 32);
2380  AV_WB16(dst + 8 * j + 4, b * 65537 >> 32);
2381  AV_WB16(dst + 8 * j + 6, 65535);
2382  }
2383  dst += p->linesize[plane];
2384  }
2385  }
2386  }
2387 
2388  if (s->planar && s->bppcount > 2) {
2389  FFSWAP(uint8_t*, p->data[0], p->data[2]);
2390  FFSWAP(int, p->linesize[0], p->linesize[2]);
2391  FFSWAP(uint8_t*, p->data[0], p->data[1]);
2392  FFSWAP(int, p->linesize[0], p->linesize[1]);
2393  }
2394 
2395  if (s->is_bayer && s->white_level && s->bpp == 16 && !is_dng) {
2396  uint16_t *dst = (uint16_t *)p->data[0];
2397  for (i = 0; i < s->height; i++) {
2398  for (j = 0; j < s->width; j++)
2399  dst[j] = FFMIN((dst[j] / (float)s->white_level) * 65535, 65535);
2400  dst += stride / 2;
2401  }
2402  }
2403 
2404  *got_frame = 1;
2405 
2406  return avpkt->size;
2407 }
2408 
2409 static av_cold int tiff_init(AVCodecContext *avctx)
2410 {
2411  TiffContext *s = avctx->priv_data;
2412  const AVCodec *codec;
2413  int ret;
2414 
2415  s->width = 0;
2416  s->height = 0;
2417  s->subsampling[0] =
2418  s->subsampling[1] = 1;
2419  s->avctx = avctx;
2420  ff_lzw_decode_open(&s->lzw);
2421  if (!s->lzw)
2422  return AVERROR(ENOMEM);
2423  ff_ccitt_unpack_init();
2424 
2425  /* Allocate JPEG frame */
2426  s->jpgframe = av_frame_alloc();
2427  s->jpkt = av_packet_alloc();
2428  if (!s->jpgframe || !s->jpkt)
2429  return AVERROR(ENOMEM);
2430 
2431  /* Prepare everything needed for JPEG decoding */
2432  codec = avcodec_find_decoder(AV_CODEC_ID_MJPEG);
2433  if (!codec)
2434  return AVERROR_BUG;
2435  s->avctx_mjpeg = avcodec_alloc_context3(codec);
2436  if (!s->avctx_mjpeg)
2437  return AVERROR(ENOMEM);
2438  s->avctx_mjpeg->flags = avctx->flags;
2439  s->avctx_mjpeg->flags2 = avctx->flags2;
2440  s->avctx_mjpeg->idct_algo = avctx->idct_algo;
2441  s->avctx_mjpeg->max_pixels = avctx->max_pixels;
2442  ret = avcodec_open2(s->avctx_mjpeg, codec, NULL);
2443  if (ret < 0) {
2444  return ret;
2445  }
2446 
2447  return 0;
2448 }
2449 
2450 static av_cold int tiff_end(AVCodecContext *avctx)
2451 {
2452  TiffContext *const s = avctx->priv_data;
2453 
2454  free_geotags(s);
2455 
2456  ff_lzw_decode_close(&s->lzw);
2457  av_freep(&s->deinvert_buf);
2458  s->deinvert_buf_size = 0;
2459  av_freep(&s->yuv_line);
2460  s->yuv_line_size = 0;
2461  av_frame_free(&s->jpgframe);
2462  av_packet_free(&s->jpkt);
2463  avcodec_free_context(&s->avctx_mjpeg);
2464  return 0;
2465 }
2466 
2467 #define OFFSET(x) offsetof(TiffContext, x)
2468 static const AVOption tiff_options[] = {
2469  { "subimage", "decode subimage instead if available", OFFSET(get_subimage), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM },
2470  { "thumbnail", "decode embedded thumbnail subimage instead if available", OFFSET(get_thumbnail), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM },
2471  { "page", "page number of multi-page image to decode (starting from 1)", OFFSET(get_page), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM },
2472  { NULL },
2473 };
2474 
2475 static const AVClass tiff_decoder_class = {
2476  .class_name = "TIFF decoder",
2477  .item_name = av_default_item_name,
2478  .option = tiff_options,
2479  .version = LIBAVUTIL_VERSION_INT,
2480 };
2481 
2482 const FFCodec ff_tiff_decoder = {
2483  .p.name = "tiff",
2484  CODEC_LONG_NAME("TIFF image"),
2485  .p.type = AVMEDIA_TYPE_VIDEO,
2486  .p.id = AV_CODEC_ID_TIFF,
2487  .priv_data_size = sizeof(TiffContext),
2488  .init = tiff_init,
2489  .close = tiff_end,
2490  FF_CODEC_DECODE_CB(decode_frame),
2491  .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
2492  .caps_internal = FF_CODEC_CAP_INIT_CLEANUP | FF_CODEC_CAP_ICC_PROFILES |
2493  FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
2494  .p.priv_class = &tiff_decoder_class,
2495 };
TiffContext::tiff_type
enum TiffType tiff_type
Definition: tiff.c:72
AVFrame::color_trc
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:672
av_packet_unref
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: packet.c:429
ff_tadd_string_metadata
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:209
TiffContext::gb
GetByteContext gb
Definition: tiff.c:61
AVCodec
AVCodec.
Definition: codec.h:187
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:215
TIFF_GEOG_LINEAR_UNITS_GEOKEY
@ TIFF_GEOG_LINEAR_UNITS_GEOKEY
Definition: tiff.h:147
name
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default minimum maximum flags name is the option name
Definition: writing_filters.txt:88
ff_tiff_decoder
const FFCodec ff_tiff_decoder
Definition: tiff.c:2482
AV_EF_EXPLODE
#define AV_EF_EXPLODE
abort decoding on minor error detection
Definition: defs.h:51
bytestream2_get_eof
static av_always_inline unsigned int bytestream2_get_eof(PutByteContext *p)
Definition: bytestream.h:332
FF_CODEC_CAP_INIT_CLEANUP
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: codec_internal.h:43
DNG_AS_SHOT_WHITE_XY
@ DNG_AS_SHOT_WHITE_XY
Definition: tiff.h:112
r
const char * r
Definition: vf_curves.c:127
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
opt.h
AV_PIX_FMT_YA8
@ AV_PIX_FMT_YA8
8 bits gray, 8 bits alpha
Definition: pixfmt.h:140
get_geokey_type
static int get_geokey_type(int key)
Definition: tiff.c:158
tiff_decode_tag
static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
Definition: tiff.c:1249
DNG_COLOR_MATRIX2
@ DNG_COLOR_MATRIX2
Definition: tiff.h:107
elements
static const ElemCat * elements[ELEMENT_COUNT]
Definition: signature.h:565
TIFF_PHOTOMETRIC_ICC_LAB
@ TIFF_PHOTOMETRIC_ICC_LAB
Definition: tiff.h:198
TIFF_JPEG
@ TIFF_JPEG
Definition: tiff.h:131
GetByteContext
Definition: bytestream.h:33
AV_PIX_FMT_GBRP16BE
@ AV_PIX_FMT_GBRP16BE
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:171
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3170
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition: error.h:57
TiffContext::dng_lut
uint16_t dng_lut[65536]
Definition: tiff.c:102
camera_xyz_coeff
static void camera_xyz_coeff(TiffContext *s, float rgb2cam[3][4], double cam2xyz[4][3])
Definition: tiff.c:1898
AVCOL_TRC_LINEAR
@ AVCOL_TRC_LINEAR
"Linear transfer characteristics"
Definition: pixfmt.h:620
TiffContext::strippos
int strippos
Definition: tiff.c:109
TIFF_CFA_PATTERN_DIM
@ TIFF_CFA_PATTERN_DIM
Definition: tiff.h:87
TIFF_PROJ_COORD_TRANS_GEOKEY
@ TIFF_PROJ_COORD_TRANS_GEOKEY
Definition: tiff.h:160
OFFSET
#define OFFSET(x)
Definition: tiff.c:2467
AVCodecContext::err_recognition
int err_recognition
Error recognition; may misdetect some more or less valid parts as errors.
Definition: avcodec.h:1430
TiffContext::sot
int sot
Definition: tiff.c:108
int64_t
long long int64_t
Definition: coverity.c:34
doubles2str
static char * doubles2str(double *dp, int count, const char *sep)
Definition: tiff.c:245
av_asprintf
char * av_asprintf(const char *fmt,...)
Definition: avstring.c:115
tiff_projection_codes
static const TiffGeoTagKeyName tiff_projection_codes[]
Definition: tiff_data.h:1536
TIFF_CCITT_RLE
@ TIFF_CCITT_RLE
Definition: tiff.h:127
TIFF_GEOG_AZIMUTH_UNITS_GEOKEY
@ TIFF_GEOG_AZIMUTH_UNITS_GEOKEY
Definition: tiff.h:155
av_unused
#define av_unused
Definition: attributes.h:131
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:162
mjpegdec.h
bytestream2_seek
static av_always_inline int bytestream2_seek(GetByteContext *g, int offset, int whence)
Definition: bytestream.h:212
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:389
AV_PIX_FMT_RGBA64BE
@ 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:202
tiff_end
static av_cold int tiff_end(AVCodecContext *avctx)
Definition: tiff.c:2450
AV_PIX_FMT_GBRAPF32LE
@ AV_PIX_FMT_GBRAPF32LE
IEEE-754 single precision planar GBRA 4:4:4:4, 128bpp, little-endian.
Definition: pixfmt.h:344
w
uint8_t w
Definition: llviddspenc.c:38
TiffContext::tile_offsets_offset
int tile_offsets_offset
Definition: tiff.c:114
TIFF_ADOBE_DEFLATE
@ TIFF_ADOBE_DEFLATE
Definition: tiff.h:133
AV_PIX_FMT_GBRPF32BE
@ AV_PIX_FMT_GBRPF32BE
IEEE-754 single precision planar GBR 4:4:4, 96bpp, big-endian.
Definition: pixfmt.h:341
TIFF_COPYRIGHT
@ TIFF_COPYRIGHT
Definition: tiff.h:89
AVPacket::data
uint8_t * data
Definition: packet.h:539
TIFF_PHOTOMETRIC_ITU_LAB
@ TIFF_PHOTOMETRIC_ITU_LAB
Definition: tiff.h:199
AVOption
AVOption.
Definition: opt.h:429
TIFF_LONG
@ TIFF_LONG
Definition: tiff_common.h:40
b
#define b
Definition: input.c:41
ff_reverse
const uint8_t ff_reverse[256]
Definition: reverse.c:23
RET_GEOKEY_VAL
#define RET_GEOKEY_VAL(TYPE, array)
TIFF_NEWJPEG
@ TIFF_NEWJPEG
Definition: tiff.h:132
FFCodec
Definition: codec_internal.h:127
float.h
deinvert_buffer
static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
Definition: tiff.c:441
reverse.h
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:106
ff_lzw_decode
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
TIFF_ROWSPERSTRIP
@ TIFF_ROWSPERSTRIP
Definition: tiff.h:58
TiffContext::pattern
uint8_t pattern[4]
Definition: tiff.c:91
TIFF_GEOG_ELLIPSOID_GEOKEY
@ TIFF_GEOG_ELLIPSOID_GEOKEY
Definition: tiff.h:151
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
TIFF_GEO_KEY_USER_DEFINED
#define TIFF_GEO_KEY_USER_DEFINED
Definition: tiff_data.h:120
TIFF_PROJECTION_GEOKEY
@ TIFF_PROJECTION_GEOKEY
Definition: tiff.h:159
TIFF_PROJ_LINEAR_UNITS_GEOKEY
@ TIFF_PROJ_LINEAR_UNITS_GEOKEY
Definition: tiff.h:161
TIFF_RAW
@ TIFF_RAW
Definition: tiff.h:126
ff_lzw_decode_close
av_cold void ff_lzw_decode_close(LZWState **p)
Definition: lzw.c:118
AVERROR_UNKNOWN
#define AVERROR_UNKNOWN
Unknown error, typically from an external library.
Definition: error.h:73
TIFF_GEO_DOUBLE_PARAMS
@ TIFF_GEO_DOUBLE_PARAMS
Definition: tiff.h:95
ff_set_dimensions
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:94
AV_PIX_FMT_BAYER_GRBG16
#define AV_PIX_FMT_BAYER_GRBG16
Definition: pixfmt.h:530
TiffGeoTagKeyName
Definition: tiff.h:220
TIFF_PHOTOMETRIC_WHITE_IS_ZERO
@ TIFF_PHOTOMETRIC_WHITE_IS_ZERO
Definition: tiff.h:190
thread.h
TIFF_PACKBITS
@ TIFF_PACKBITS
Definition: tiff.h:134
TIFF_GEOG_PRIME_MERIDIAN_GEOKEY
@ TIFF_GEOG_PRIME_MERIDIAN_GEOKEY
Definition: tiff.h:146
av_packet_free
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: packet.c:74
TiffContext::is_jpeg
int is_jpeg
Definition: tiff.c:117
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:410
dng_process_color16
static uint16_t av_always_inline dng_process_color16(uint16_t value, const uint16_t *lut, float black_level, float scale_factor)
Map stored raw sensor values into linear reference values (see: DNG Specification - Chapter 5)
Definition: tiff.c:285
av_malloc
#define av_malloc(s)
Definition: tableprint_vlc.h:30
TIFF_GEO_KEY_UNDEFINED
#define TIFF_GEO_KEY_UNDEFINED
Definition: tiff_data.h:119
tiff_options
static const AVOption tiff_options[]
Definition: tiff.c:2468
TiffContext::get_thumbnail
int get_thumbnail
Definition: tiff.c:70
TIFF_PHOTOMETRIC_LINEAR_RAW
@ TIFF_PHOTOMETRIC_LINEAR_RAW
Definition: tiff.h:203
TIFF_FILL_ORDER
@ TIFF_FILL_ORDER
Definition: tiff.h:51
TIFF_PHOTOMETRIC_ALPHA_MASK
@ TIFF_PHOTOMETRIC_ALPHA_MASK
Definition: tiff.h:194
TiffContext::deinvert_buf_size
int deinvert_buf_size
Definition: tiff.c:120
AV_PIX_FMT_GRAY16BE
@ AV_PIX_FMT_GRAY16BE
Y , 16bpp, big-endian.
Definition: pixfmt.h:104
bytestream2_skip
static av_always_inline void bytestream2_skip(GetByteContext *g, unsigned int size)
Definition: bytestream.h:168
TIFF_DATE
@ TIFF_DATE
Definition: tiff.h:72
get_bits
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:335
TIFF_TILE_BYTE_COUNTS
@ TIFF_TILE_BYTE_COUNTS
Definition: tiff.h:80
ff_ccitt_unpack
int ff_ccitt_unpack(AVCodecContext *avctx, const uint8_t *src, int srcsize, uint8_t *dst, int height, int stride, enum TiffCompr compr, int opts)
unpack data compressed with CCITT Group 3 1/2-D or Group 4 method
Definition: faxcompr.c:393
FFCodec::p
AVCodec p
The public AVCodec.
Definition: codec_internal.h:131
unpack_yuv
static void unpack_yuv(TiffContext *s, AVFrame *p, const uint8_t *src, int lnum)
Definition: tiff.c:468
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:212
tiff_set_type
static void tiff_set_type(TiffContext *s, enum TiffType tiff_type)
Definition: tiff.c:130
dng_decode_tiles
static int dng_decode_tiles(AVCodecContext *avctx, AVFrame *frame, const AVPacket *avpkt)
Definition: tiff.c:968
inflate
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:194
TIFF_YCBCR_SUBSAMPLING
@ TIFF_YCBCR_SUBSAMPLING
Definition: tiff.h:84
TIFF_MAKE
@ TIFF_MAKE
Definition: tiff.h:54
GetBitContext
Definition: get_bits.h:108
TIFF_GEOG_GEODETIC_DATUM_GEOKEY
@ TIFF_GEOG_GEODETIC_DATUM_GEOKEY
Definition: tiff.h:145
TiffContext::deinvert_buf
uint8_t * deinvert_buf
Definition: tiff.c:119
TiffContext::tile_length
int tile_length
Definition: tiff.c:115
AVCodecContext::flags
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:508
TIFF_T6OPTIONS
@ TIFF_T6OPTIONS
Definition: tiff.h:68
val
static double val(void *priv, double ch)
Definition: aeval.c:77
horizontal_fill
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:385
type
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
Definition: writing_filters.txt:86
TiffContext::color_matrix
float color_matrix[3][4]
Definition: tiff.c:96
TIFF_VERTICAL_CS_TYPE_GEOKEY
@ TIFF_VERTICAL_CS_TYPE_GEOKEY
Definition: tiff.h:181
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:486
TIFF_SOFTWARE_NAME
@ TIFF_SOFTWARE_NAME
Definition: tiff.h:71
FF_LZW_TIFF
@ FF_LZW_TIFF
Definition: lzw.h:39
av_reduce
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
TiffContext::as_shot_neutral
float as_shot_neutral[4]
Definition: tiff.c:94
AVCOL_TRC_GAMMA22
@ AVCOL_TRC_GAMMA22
also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:616
TiffContext::geotags
TiffGeoTag * geotags
Definition: tiff.c:125
DNG_LINEARIZATION_TABLE
@ DNG_LINEARIZATION_TABLE
Definition: tiff.h:103
AV_DICT_DONT_STRDUP_VAL
#define AV_DICT_DONT_STRDUP_VAL
Take ownership of a value that's been allocated with av_malloc() or another memory allocation functio...
Definition: dict.h:79
av_frame_alloc
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:150
TIFF_SHORT
@ TIFF_SHORT
Definition: tiff_common.h:39
get_geokey_val
static const char * get_geokey_val(int key, uint16_t val)
Definition: tiff.c:186
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:209
TiffGeoTag
Definition: tiff.h:212
TIFF_GRAY_RESPONSE_CURVE
@ TIFF_GRAY_RESPONSE_CURVE
Definition: tiff.h:66
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen.c:29
av_cold
#define av_cold
Definition: attributes.h:90
TiffContext::rps
int rps
Definition: tiff.c:107
init_get_bits8
static int init_get_bits8(GetBitContext *s, const uint8_t *buffer, int byte_size)
Initialize GetBitContext.
Definition: get_bits.h:545
TIFF_SUBFILE
@ TIFF_SUBFILE
Definition: tiff.h:45
AV_FRAME_FLAG_KEY
#define AV_FRAME_FLAG_KEY
A flag to mark frames that are keyframes.
Definition: frame.h:640
TiffContext::premultiply
float premultiply[4]
Definition: tiff.c:98
TiffContext::camera_calibration
float camera_calibration[4][4]
Definition: tiff.c:97
CINEMADNG_T_STOP
@ CINEMADNG_T_STOP
Definition: tiff.h:119
bytestream2_init_writer
static av_always_inline void bytestream2_init_writer(PutByteContext *p, uint8_t *buf, int buf_size)
Definition: bytestream.h:147
float
float
Definition: af_crystalizer.c:122
AV_PIX_FMT_GBRAP16BE
@ AV_PIX_FMT_GBRAP16BE
planar GBRA 4:4:4:4 64bpp, big-endian
Definition: pixfmt.h:213
TiffContext::stripsize
int stripsize
Definition: tiff.c:109
avcodec_alloc_context3
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
Definition: options.c:149
FF_CODEC_DECODE_CB
#define FF_CODEC_DECODE_CB(func)
Definition: codec_internal.h:311
tiff_proj_cs_type_codes
static const TiffGeoTagKeyName tiff_proj_cs_type_codes[]
Definition: tiff_data.h:559
intreadwrite.h
TIFF_G4
@ TIFF_G4
Definition: tiff.h:129
s
#define s(width, name)
Definition: cbs_vp9.c:198
AV_PIX_FMT_GBRP16LE
@ AV_PIX_FMT_GBRP16LE
planar GBR 4:4:4 48bpp, little-endian
Definition: pixfmt.h:172
TiffContext::width
int width
Definition: tiff.c:73
AV_PIX_FMT_BAYER_BGGR8
@ AV_PIX_FMT_BAYER_BGGR8
bayer, BGBG..(odd line), GRGR..(even line), 8-bit samples
Definition: pixfmt.h:285
g
const char * g
Definition: vf_curves.c:128
TiffType
TiffType
TIFF types in ascenting priority (last in the list is highest)
Definition: tiff.h:34
ff_thread_get_buffer
int ff_thread_get_buffer(AVCodecContext *avctx, AVFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
Definition: pthread_frame.c:1049
ff_lzw_decode_open
av_cold void ff_lzw_decode_open(LZWState **p)
Definition: lzw.c:113
TIFF_STRIP_SIZE
@ TIFF_STRIP_SIZE
Definition: tiff.h:59
fminf
float fminf(float, float)
avcodec_receive_frame
int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
Return decoded output data from a decoder or encoder (when the AV_CODEC_FLAG_RECON_FRAME flag is used...
Definition: avcodec.c:713
TiffContext::yuv_line
uint8_t * yuv_line
Definition: tiff.c:121
TIFF_GEOGRAPHIC_TYPE_GEOKEY
@ TIFF_GEOGRAPHIC_TYPE_GEOKEY
Definition: tiff.h:143
dng_decode_jpeg
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:649
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:40
TIFF_STRING
@ TIFF_STRING
Definition: tiff_common.h:38
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:230
TIFF_PHOTOMETRIC_LOG_L
@ TIFF_PHOTOMETRIC_LOG_L
Definition: tiff.h:201
TiffContext::use_color_matrix
int use_color_matrix
Definition: tiff.c:90
ff_tadd_shorts_metadata
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:166
channels
channels
Definition: aptx.h:31
decode.h
get_bits.h
AV_RL16
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_RL16
Definition: bytestream.h:94
TiffContext::get_page
uint16_t get_page
Definition: tiff.c:69
LZWState
Definition: lzw.c:46
TIFF_IMAGE_DESCRIPTION
@ TIFF_IMAGE_DESCRIPTION
Definition: tiff.h:53
AVCodecContext::max_pixels
int64_t max_pixels
The number of pixels per image to maximally accept.
Definition: avcodec.h:1945
TiffContext::is_bayer
int is_bayer
Definition: tiff.c:89
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:73
key
const char * key
Definition: hwcontext_opencl.c:189
TiffContext::jpgframe
AVFrame * jpgframe
Definition: tiff.c:66
TiffContext::compr
enum TiffCompr compr
Definition: tiff.c:78
CODEC_LONG_NAME
#define CODEC_LONG_NAME(str)
Definition: codec_internal.h:296
TiffContext::photometric
enum TiffPhotometric photometric
Definition: tiff.c:79
AV_PIX_FMT_RGBA
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:100
search_keyval
static const char * search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
Definition: tiff.c:177
AV_PIX_FMT_BAYER_RGGB8
@ AV_PIX_FMT_BAYER_RGGB8
bayer, RGRG..(odd line), GBGB..(even line), 8-bit samples
Definition: pixfmt.h:286
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:74
AV_PIX_FMT_BAYER_BGGR16
#define AV_PIX_FMT_BAYER_BGGR16
Definition: pixfmt.h:527
if
if(ret)
Definition: filter_design.txt:179
dng_process_color8
static uint16_t av_always_inline dng_process_color8(uint16_t value, const uint16_t *lut, float black_level, float scale_factor)
Definition: tiff.c:304
ff_ccitt_unpack_init
av_cold void ff_ccitt_unpack_init(void)
initialize unpacker code
Definition: faxcompr.c:119
TiffContext::geotag_count
int geotag_count
Definition: tiff.c:124
TiffContext::height
int height
Definition: tiff.c:73
TIFF_PAGE_NAME
@ TIFF_PAGE_NAME
Definition: tiff.h:63
TIFF_VERTICAL_UNITS_GEOKEY
@ TIFF_VERTICAL_UNITS_GEOKEY
Definition: tiff.h:184
AV_CODEC_CAP_FRAME_THREADS
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: codec.h:110
AVDISCARD_ALL
@ AVDISCARD_ALL
discard all
Definition: defs.h:221
planes
static const struct @465 planes[]
TIFF_LZW
@ TIFF_LZW
Definition: tiff.h:130
tiff_init
static av_cold int tiff_init(AVCodecContext *avctx)
Definition: tiff.c:2409
TiffContext::as_shot_white
float as_shot_white[4]
Definition: tiff.c:95
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
ff_tget_short
unsigned ff_tget_short(GetByteContext *gb, int le)
Reads a short from the bytestream using given endianness.
Definition: tiff_common.c:45
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:75
AV_PIX_FMT_GBRAPF32BE
@ AV_PIX_FMT_GBRAPF32BE
IEEE-754 single precision planar GBRA 4:4:4:4, 128bpp, big-endian.
Definition: pixfmt.h:343
NULL
#define NULL
Definition: coverity.c:32
AVERROR_PATCHWELCOME
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:64
TIFF_PHOTOMETRIC_YCBCR
@ TIFF_PHOTOMETRIC_YCBCR
Definition: tiff.h:196
TiffContext
Definition: tiff.c:58
AV_WB16
#define AV_WB16(p, v)
Definition: intreadwrite.h:401
TiffContext::is_thumbnail
int is_thumbnail
Definition: tiff.c:86
tiff_data.h
TiffContext::avctx
AVCodecContext * avctx
Definition: tiff.c:60
avcodec_free_context
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:164
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
AV_PIX_FMT_RGB48LE
@ 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:110
AV_PIX_FMT_YA16LE
@ AV_PIX_FMT_YA16LE
16 bits gray, 16 bits alpha (little-endian)
Definition: pixfmt.h:210
AV_PIX_FMT_MONOBLACK
@ 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:83
tiff.h
TIFF_PHOTOMETRIC_PALETTE
@ TIFF_PHOTOMETRIC_PALETTE
Definition: tiff.h:193
tiff_common.h
TiffContext::get_subimage
int get_subimage
Definition: tiff.c:68
DNG_AS_SHOT_NEUTRAL
@ DNG_AS_SHOT_NEUTRAL
Definition: tiff.h:111
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:237
AV_PIX_FMT_RGBA64LE
@ 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:203
AV_PICTURE_TYPE_I
@ AV_PICTURE_TYPE_I
Intra.
Definition: avutil.h:279
TIFF_MODEL_TIEPOINT
@ TIFF_MODEL_TIEPOINT
Definition: tiff.h:90
TIFF_PHOTOMETRIC_CIE_LAB
@ TIFF_PHOTOMETRIC_CIE_LAB
Definition: tiff.h:197
AV_FRAME_DATA_ICC_PROFILE
@ 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:144
TiffContext::black_level
float black_level[4]
Definition: tiff.c:99
AV_PIX_FMT_BAYER_GBRG16
#define AV_PIX_FMT_BAYER_GBRG16
Definition: pixfmt.h:529
MJpegDecodeContext
Definition: mjpegdec.h:54
TIFF_PAL
@ TIFF_PAL
Definition: tiff.h:76
RET_GEOKEY_TYPE
#define RET_GEOKEY_TYPE(TYPE, array)
avcodec_open2
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: avcodec.c:143
TIFF_BYTE
@ TIFF_BYTE
Definition: tiff_common.h:37
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:81
TIFF_ARTIST
@ TIFF_ARTIST
Definition: tiff.h:73
CINEMADNG_TIME_CODES
@ CINEMADNG_TIME_CODES
Definition: tiff.h:117
TIFF_SAMPLES_PER_PIXEL
@ TIFF_SAMPLES_PER_PIXEL
Definition: tiff.h:57
TIFF_SRATIONAL
@ TIFF_SRATIONAL
Definition: tiff_common.h:46
TIFF_G3
@ TIFF_G3
Definition: tiff.h:128
TIFF_WIDTH
@ TIFF_WIDTH
Definition: tiff.h:46
TIFF_TILE_OFFSETS
@ TIFF_TILE_OFFSETS
Definition: tiff.h:79
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
bytestream2_get_bytes_left
static av_always_inline int bytestream2_get_bytes_left(GetByteContext *g)
Definition: bytestream.h:158
error.h
TiffContext::palette
uint32_t palette[256]
Definition: tiff.c:75
bytestream2_tell
static av_always_inline int bytestream2_tell(GetByteContext *g)
Definition: bytestream.h:192
avcodec_find_decoder
const AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:1011
PutByteContext
Definition: bytestream.h:37
ff_tread_tag
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:254
AV_PIX_FMT_RGBF32BE
@ AV_PIX_FMT_RGBF32BE
IEEE-754 single precision packed RGB 32:32:32, 96bpp, RGBRGB..., big-endian.
Definition: pixfmt.h:420
AVCodecContext::flags2
int flags2
AV_CODEC_FLAG2_*.
Definition: avcodec.h:515
init
int(* init)(AVBSFContext *ctx)
Definition: dts2pts.c:368
AV_PIX_FMT_RGB24
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:75
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:52
AVPacket::size
int size
Definition: packet.h:540
TIFF_TYPE_CINEMADNG
@ TIFF_TYPE_CINEMADNG
Digital Negative (DNG) image part of an CinemaDNG image sequence.
Definition: tiff.h:40
height
#define height
Definition: dsp.h:85
codec_internal.h
AV_PIX_FMT_FLAG_RGB
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:136
shift
static int shift(int a, int b)
Definition: bonk.c:261
dst
uint8_t ptrdiff_t const uint8_t ptrdiff_t int intptr_t intptr_t int int16_t * dst
Definition: dsp.h:83
TiffContext::analog_balance
float analog_balance[4]
Definition: tiff.c:93
lzw.h
LZW decoding routines.
av_err2str
#define av_err2str(errnum)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition: error.h:122
DNG_CAMERA_CALIBRATION1
@ DNG_CAMERA_CALIBRATION1
Definition: tiff.h:108
for
for(k=2;k<=8;++k)
Definition: h264pred_template.c:425
TIFF_DOUBLE
@ TIFF_DOUBLE
Definition: tiff_common.h:48
bps
unsigned bps
Definition: movenc.c:1877
AV_PIX_FMT_YA16BE
@ AV_PIX_FMT_YA16BE
16 bits gray, 16 bits alpha (big-endian)
Definition: pixfmt.h:209
TIFF_GEO_ASCII_PARAMS
@ TIFF_GEO_ASCII_PARAMS
Definition: tiff.h:96
size
int size
Definition: twinvq_data.h:10344
xyz2rgb
static const float xyz2rgb[3][3]
Definition: tiff.c:1892
ff_frame_new_side_data
int ff_frame_new_side_data(const AVCodecContext *avctx, AVFrame *frame, enum AVFrameSideDataType type, size_t size, AVFrameSideData **psd)
Wrapper around av_frame_new_side_data, which rejects side data overridden by the demuxer.
Definition: decode.c:2099
FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM
#define FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM
The decoder extracts and fills its parameters even if the frame is skipped due to the skip_frame sett...
Definition: codec_internal.h:55
avpriv_report_missing_feature
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
TiffContext::bpp
unsigned int bpp
Definition: tiff.c:74
AVFrameSideData::data
uint8_t * data
Definition: frame.h:267
TIFF_GT_MODEL_TYPE_GEOKEY
@ TIFF_GT_MODEL_TYPE_GEOKEY
Definition: tiff.h:140
TiffContext::jpkt
AVPacket * jpkt
Definition: tiff.c:65
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:476
TIFF_DOCUMENT_NAME
@ TIFF_DOCUMENT_NAME
Definition: tiff.h:52
TiffContext::fill_order
int fill_order
Definition: tiff.c:84
TIFF_MODEL_TRANSFORMATION
@ TIFF_MODEL_TRANSFORMATION
Definition: tiff.h:92
TIFF_TILE_LENGTH
@ TIFF_TILE_LENGTH
Definition: tiff.h:78
TIFF_MODEL
@ TIFF_MODEL
Definition: tiff.h:55
AV_WL16
#define AV_WL16(p, v)
Definition: intreadwrite.h:408
TiffContext::white_level
unsigned white_level
Definition: tiff.c:101
TiffContext::stripsizesoff
int stripsizesoff
Definition: tiff.c:109
offset
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf offset
Definition: writing_filters.txt:86
line
Definition: graph2dot.c:48
attributes.h
av_packet_alloc
AVPacket * av_packet_alloc(void)
Allocate an AVPacket and set its fields to default values.
Definition: packet.c:63
AV_PIX_FMT_RGB0
@ AV_PIX_FMT_RGB0
packed RGB 8:8:8, 32bpp, RGBXRGBX... X=unused/undefined
Definition: pixfmt.h:263
TiffContext::planar
int planar
Definition: tiff.c:80
TIFF_COMPR
@ TIFF_COMPR
Definition: tiff.h:49
TIFF_HEIGHT
@ TIFF_HEIGHT
Definition: tiff.h:47
cmp_id_key
static int cmp_id_key(const void *id, const void *k)
Definition: tiff.c:172
AV_LOG_INFO
#define AV_LOG_INFO
Standard information.
Definition: log.h:220
tiff_decoder_class
static const AVClass tiff_decoder_class
Definition: tiff.c:2475
DNG_BLACK_LEVEL
@ DNG_BLACK_LEVEL
Definition: tiff.h:104
TIFF_T4OPTIONS
@ TIFF_T4OPTIONS
Definition: tiff.h:67
TIFF_PHOTOMETRIC_LOG_LUV
@ TIFF_PHOTOMETRIC_LOG_LUV
Definition: tiff.h:202
TiffContext::le
int le
Definition: tiff.c:77
AV_CODEC_ID_MJPEG
@ AV_CODEC_ID_MJPEG
Definition: codec_id.h:59
CINEMADNG_REEL_NAME
@ CINEMADNG_REEL_NAME
Definition: tiff.h:120
avcodec_send_packet
int avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
Supply raw packet data as input to a decoder.
Definition: decode.c:728
TiffContext::subsampling
int subsampling[2]
Definition: tiff.c:81
TIFF_PAGE_NUMBER
@ TIFF_PAGE_NUMBER
Definition: tiff.h:70
decode_frame
static int decode_frame(AVCodecContext *avctx, AVFrame *p, int *got_frame, AVPacket *avpkt)
Definition: tiff.c:1924
AV_PIX_FMT_RGB48BE
@ 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:109
TIFF_PHOTOMETRIC_CFA
@ TIFF_PHOTOMETRIC_CFA
Definition: tiff.h:200
lrintf
#define lrintf(x)
Definition: libm_mips.h:72
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:256
code
and forward the test the status of outputs and forward it to the corresponding return FFERROR_NOT_READY If the filters stores internally one or a few frame for some it can consider them to be part of the FIFO and delay acknowledging a status change accordingly Example code
Definition: filter_design.txt:178
ff_tget_long
unsigned ff_tget_long(GetByteContext *gb, int le)
Reads a long from the bytestream using given endianness.
Definition: tiff_common.c:51
TIFF_PHOTOMETRIC_BLACK_IS_ZERO
@ TIFF_PHOTOMETRIC_BLACK_IS_ZERO
Definition: tiff.h:191
TiffContext::tile_width
int tile_width
Definition: tiff.c:115
TiffContext::fax_opts
int fax_opts
Definition: tiff.c:82
ff_lzw_decode_init
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
TiffContext::bppcount
unsigned int bppcount
Definition: tiff.c:74
unpack_gray
static void unpack_gray(TiffContext *s, AVFrame *p, const uint8_t *src, int lnum, int width, int bpp)
Definition: tiff.c:454
TiffContext::res
uint32_t res[4]
Definition: tiff.c:85
TIFF_MODEL_PIXEL_SCALE
@ TIFF_MODEL_PIXEL_SCALE
Definition: tiff.h:91
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:31
TIFF_PLANAR
@ TIFF_PLANAR
Definition: tiff.h:62
av_assert1
#define av_assert1(cond)
assert() equivalent, that does not lie in speed critical code.
Definition: avassert.h:56
AV_PIX_FMT_BAYER_GBRG8
@ AV_PIX_FMT_BAYER_GBRG8
bayer, GBGB..(odd line), RGRG..(even line), 8-bit samples
Definition: pixfmt.h:287
TIFF_TYPE_TIFF
@ TIFF_TYPE_TIFF
TIFF image based on the TIFF 6.0 or TIFF/EP (ISO 12234-2) specifications.
Definition: tiff.h:36
av_fast_padded_malloc
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:52
av_always_inline
#define av_always_inline
Definition: attributes.h:49
value
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default value
Definition: writing_filters.txt:86
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
MJpegDecodeContext::bayer
int bayer
Definition: mjpegdec.h:75
AV_OPT_FLAG_VIDEO_PARAM
#define AV_OPT_FLAG_VIDEO_PARAM
Definition: opt.h:358
av_frame_unref
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:610
AVCodecContext::idct_algo
int idct_algo
IDCT algorithm, see FF_IDCT_* below.
Definition: avcodec.h:1558
TIFF_TYPE_DNG
@ TIFF_TYPE_DNG
Digital Negative (DNG) image.
Definition: tiff.h:38
AVCodec::name
const char * name
Name of the codec implementation.
Definition: codec.h:194
DNG_VERSION
@ DNG_VERSION
Definition: tiff.h:101
TiffContext::stripoff
int stripoff
Definition: tiff.c:109
len
int len
Definition: vorbis_enc_data.h:426
AV_PIX_FMT_GBRPF32LE
@ AV_PIX_FMT_GBRPF32LE
IEEE-754 single precision planar GBR 4:4:4, 96bpp, little-endian.
Definition: pixfmt.h:342
TIFF_PHOTOMETRIC_NONE
@ TIFF_PHOTOMETRIC_NONE
Definition: tiff.h:189
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:264
TIFF_CFA_PATTERN
@ TIFF_CFA_PATTERN
Definition: tiff.h:88
TIFF_STRIP_OFFS
@ TIFF_STRIP_OFFS
Definition: tiff.h:56
FF_CODEC_CAP_ICC_PROFILES
#define FF_CODEC_CAP_ICC_PROFILES
Codec supports embedded ICC profiles (AV_FRAME_DATA_ICC_PROFILE).
Definition: codec_internal.h:82
TIFF_TILE_WIDTH
@ TIFF_TILE_WIDTH
Definition: tiff.h:77
avcodec.h
stride
#define stride
Definition: h264pred_template.c:537
AV_PIX_FMT_GBRAP16LE
@ AV_PIX_FMT_GBRAP16LE
planar GBRA 4:4:4:4 64bpp, little-endian
Definition: pixfmt.h:214
AV_PIX_FMT_PAL8
@ AV_PIX_FMT_PAL8
8 bits with AV_PIX_FMT_RGB32 palette
Definition: pixfmt.h:84
tag
uint32_t tag
Definition: movenc.c:1876
ret
ret
Definition: filter_design.txt:187
TIFF_HOST_COMPUTER
@ TIFF_HOST_COMPUTER
Definition: tiff.h:74
DNG_WHITE_LEVEL
@ DNG_WHITE_LEVEL
Definition: tiff.h:105
FFSWAP
#define FFSWAP(type, a, b)
Definition: macros.h:52
AVClass::class_name
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:80
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:264
TiffContext::palette_is_set
int palette_is_set
Definition: tiff.c:76
TIFF_BPP
@ TIFF_BPP
Definition: tiff.h:48
d65_white
static const float d65_white[3]
Definition: tiff.c:128
pos
unsigned int pos
Definition: spdifenc.c:414
get_geokey_name
static const char * get_geokey_name(int key)
Definition: tiff.c:143
TIFF_PHOTOMETRIC
@ TIFF_PHOTOMETRIC
Definition: tiff.h:50
AV_RL32
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
Definition: bytestream.h:92
U
#define U(x)
Definition: vpx_arith.h:37
ff_tget_double
double ff_tget_double(GetByteContext *gb, int le)
Reads a double from the bytestream using given endianness.
Definition: tiff_common.c:57
TiffPhotometric
TiffPhotometric
list of TIFF, TIFF/AP and DNG PhotometricInterpretation (TIFF_PHOTOMETRIC) values
Definition: tiff.h:188
TiffContext::last_tag
unsigned last_tag
Definition: tiff.c:87
AVCodecContext
main external API structure.
Definition: avcodec.h:451
ADD_METADATA
#define ADD_METADATA(count, name, sep)
AV_PIX_FMT_RGBAF32BE
@ AV_PIX_FMT_RGBAF32BE
IEEE-754 single precision packed RGBA 32:32:32:32, 128bpp, RGBARGBA..., big-endian.
Definition: pixfmt.h:423
TiffContext::sstype
int sstype
Definition: tiff.c:107
again
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining again
Definition: filter_design.txt:25
TIFF_PREDICTOR
@ TIFF_PREDICTOR
Definition: tiff.h:75
TIFF_RATIONAL
@ TIFF_RATIONAL
Definition: tiff_common.h:41
bytestream2_seek_p
static av_always_inline int bytestream2_seek_p(PutByteContext *p, int offset, int whence)
Definition: bytestream.h:236
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Underlying C type is int.
Definition: opt.h:259
AVFrame::metadata
AVDictionary * metadata
metadata.
Definition: frame.h:707
TiffContext::lzw
LZWState * lzw
Definition: tiff.c:110
set_sar
static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
Definition: tiff.c:1230
TIFF_LZMA
@ TIFF_LZMA
Definition: tiff.h:136
tiff_unpack_fax
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:628
TIFF_GEO_KEY_DIRECTORY
@ TIFF_GEO_KEY_DIRECTORY
Definition: tiff.h:94
CINEMADNG_CAMERA_LABEL
@ CINEMADNG_CAMERA_LABEL
Definition: tiff.h:121
TiffContext::is_tiled
int is_tiled
Definition: tiff.c:113
AV_PIX_FMT_FLAG_PLANAR
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
Definition: pixdesc.h:132
ff_tdecode_header
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:229
AV_PIX_FMT_RGBF32LE
@ AV_PIX_FMT_RGBF32LE
IEEE-754 single precision packed RGB 32:32:32, 96bpp, RGBRGB..., little-endian.
Definition: pixfmt.h:421
RET_GEOKEY_STR
#define RET_GEOKEY_STR(TYPE, array)
TIFF_YRES
@ TIFF_YRES
Definition: tiff.h:61
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:78
av_clip_uint16
#define av_clip_uint16
Definition: common.h:112
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:165
TIFF_ICC_PROFILE
@ TIFF_ICC_PROFILE
Definition: tiff.h:93
faxcompr.h
DNG_CAMERA_CALIBRATION2
@ DNG_CAMERA_CALIBRATION2
Definition: tiff.h:109
av_strdup
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:272
AV_OPT_FLAG_DECODING_PARAM
#define AV_OPT_FLAG_DECODING_PARAM
A generic parameter which can be set by the user for demuxing or decoding.
Definition: opt.h:356
desc
const char * desc
Definition: libsvtav1.c:79
AV_PIX_FMT_RGBAF32LE
@ AV_PIX_FMT_RGBAF32LE
IEEE-754 single precision packed RGBA 32:32:32:32, 128bpp, RGBARGBA..., little-endian.
Definition: pixfmt.h:424
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_GRAY16LE
@ AV_PIX_FMT_GRAY16LE
Y , 16bpp, little-endian.
Definition: pixfmt.h:105
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:77
mem.h
bytestream2_get_bufferu
static av_always_inline unsigned int bytestream2_get_bufferu(GetByteContext *g, uint8_t *dst, unsigned int size)
Definition: bytestream.h:277
init_image
static int init_image(TiffContext *s, AVFrame *frame)
Definition: tiff.c:1041
avpriv_request_sample
#define avpriv_request_sample(...)
Definition: tableprint_vlc.h:36
AVFrameSideData
Structure to hold side data for an AVFrame.
Definition: frame.h:265
free_geotags
static void free_geotags(TiffContext *const s)
Definition: tiff.c:135
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
av_free
#define av_free(p)
Definition: tableprint_vlc.h:33
TIFF_DEFLATE
@ TIFF_DEFLATE
Definition: tiff.h:135
TIFF_PHOTOMETRIC_RGB
@ TIFF_PHOTOMETRIC_RGB
Definition: tiff.h:192
AVCodecContext::priv_data
void * priv_data
Definition: avcodec.h:478
AVPacket
This structure stores compressed data.
Definition: packet.h:516
TIFF_SUB_IFDS
@ TIFF_SUB_IFDS
Definition: tiff.h:81
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Underlying C type is int.
Definition: opt.h:327
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
av_dict_set
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:88
dng_blit
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, int odd_line)
Definition: tiff.c:312
tiff_unpack_strip
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:739
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:80
DNG_COLOR_MATRIX1
@ DNG_COLOR_MATRIX1
Definition: tiff.h:106
TiffContext::tile_byte_counts_offset
int tile_byte_counts_offset
Definition: tiff.c:114
ff_tadd_doubles_metadata
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:145
TiffContext::avctx_mjpeg
AVCodecContext * avctx_mjpeg
Definition: tiff.c:64
TIFF_XRES
@ TIFF_XRES
Definition: tiff.h:60
add_metadata
static int add_metadata(int count, int type, const char *name, const char *sep, TiffContext *s, AVFrame *frame)
Definition: tiff.c:271
bytestream.h
bytestream2_init
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
Definition: bytestream.h:137
AVERROR_BUG
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:52
TiffCompr
TiffCompr
list of TIFF, TIFF/EP and DNG compression types
Definition: tiff.h:125
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition: frame.h:434
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:79
TIFF_GEOG_ANGULAR_UNITS_GEOKEY
@ TIFF_GEOG_ANGULAR_UNITS_GEOKEY
Definition: tiff.h:149
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:61
TiffContext::cur_page
uint16_t cur_page
Definition: tiff.c:105
h
h
Definition: vp9dsp_template.c:2070
AV_CODEC_ID_TIFF
@ AV_CODEC_ID_TIFF
Definition: codec_id.h:148
avstring.h
type_sizes
static const uint8_t type_sizes[14]
sizes of various TIFF field types (string size = 100)
Definition: tiff_common.h:53
width
#define width
Definition: dsp.h:85
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:484
TiffContext::predictor
int predictor
Definition: tiff.c:83
AV_PIX_FMT_BAYER_RGGB16
#define AV_PIX_FMT_BAYER_RGGB16
Definition: pixfmt.h:528
snprintf
#define snprintf
Definition: snprintf.h:34
ff_tget
unsigned ff_tget(GetByteContext *gb, int type, int le)
Reads a byte from the bytestream using given endianness.
Definition: tiff_common.c:64
TIFF_PHOTOMETRIC_SEPARATED
@ TIFF_PHOTOMETRIC_SEPARATED
Definition: tiff.h:195
TiffContext::strips
int strips
Definition: tiff.c:107
TIFF_PROJECTED_CS_TYPE_GEOKEY
@ TIFF_PROJECTED_CS_TYPE_GEOKEY
Definition: tiff.h:157
CINEMADNG_FRAME_RATE
@ CINEMADNG_FRAME_RATE
Definition: tiff.h:118
TiffContext::sub_ifd
uint32_t sub_ifd
Definition: tiff.c:104
AV_PIX_FMT_BAYER_GRBG8
@ AV_PIX_FMT_BAYER_GRBG8
bayer, GRGR..(odd line), BGBG..(even line), 8-bit samples
Definition: pixfmt.h:288
src
#define src
Definition: vp8dsp.c:248
line
The official guide to swscale for confused that consecutive non overlapping rectangles of slice_bottom special converter These generally are unscaled converters of common like for each output line the vertical scaler pulls lines from a ring buffer When the ring buffer does not contain the wanted line
Definition: swscale.txt:40
TiffContext::yuv_line_size
unsigned int yuv_line_size
Definition: tiff.c:122
AV_RB16
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_WB24 unsigned int_TMPL AV_RB16
Definition: bytestream.h:98
DNG_ANALOG_BALANCE
@ DNG_ANALOG_BALANCE
Definition: tiff.h:110
TIFF_GT_RASTER_TYPE_GEOKEY
@ TIFF_GT_RASTER_TYPE_GEOKEY
Definition: tiff.h:141
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