FFmpeg
tiff.c
Go to the documentation of this file.
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;
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 
69  uint16_t get_page;
71 
73  int width, height;
74  unsigned int bpp, bppcount;
75  uint32_t palette[256];
77  int le;
80  int planar;
81  int subsampling[2];
82  int fax_opts;
83  int predictor;
85  uint32_t res[4];
87  unsigned last_tag;
88 
89  int is_bayer;
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 
108  int sot;
111 
112  /* Tile support */
113  int is_tiled;
116 
117  int is_jpeg;
118 
119  uint8_t *deinvert_buf;
121  uint8_t *yuv_line;
122  unsigned int yuv_line_size;
123 
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 {
189  return "undefined";
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) {
200  RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
201  break;
203  RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
204  break;
208  RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
209  break;
212  RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
213  break;
215  RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
216  RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
217  break;
219  RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
220  RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
221  break;
223  RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
224  break;
226  RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
227  break;
233  RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
234  break;
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 
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 
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;
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 
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 
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 
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  s->width = value;
1302  break;
1303  case TIFF_HEIGHT:
1304  s->height = value;
1305  break;
1306  case TIFF_BPP:
1307  if (count > 5 || count <= 0) {
1308  av_log(s->avctx, AV_LOG_ERROR,
1309  "This format is not supported (bpp=%d, %d components)\n",
1310  value, count);
1311  return AVERROR_INVALIDDATA;
1312  }
1313  s->bppcount = count;
1314  if (count == 1)
1315  s->bpp = value;
1316  else {
1317  switch (type) {
1318  case TIFF_BYTE:
1319  case TIFF_SHORT:
1320  case TIFF_LONG:
1321  s->bpp = 0;
1322  if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
1323  return AVERROR_INVALIDDATA;
1324  for (i = 0; i < count; i++)
1325  s->bpp += ff_tget(&s->gb, type, s->le);
1326  break;
1327  default:
1328  s->bpp = -1;
1329  }
1330  }
1331  break;
1333  if (count != 1) {
1334  av_log(s->avctx, AV_LOG_ERROR,
1335  "Samples per pixel requires a single value, many provided\n");
1336  return AVERROR_INVALIDDATA;
1337  }
1338  if (value > 5 || value <= 0) {
1339  av_log(s->avctx, AV_LOG_ERROR,
1340  "Invalid samples per pixel %d\n", value);
1341  return AVERROR_INVALIDDATA;
1342  }
1343  if (s->bppcount == 1)
1344  s->bpp *= value;
1345  s->bppcount = value;
1346  break;
1347  case TIFF_COMPR:
1348  s->compr = value;
1349  av_log(s->avctx, AV_LOG_DEBUG, "compression: %d\n", s->compr);
1350  s->predictor = 0;
1351  switch (s->compr) {
1352  case TIFF_RAW:
1353  case TIFF_PACKBITS:
1354  case TIFF_LZW:
1355  case TIFF_CCITT_RLE:
1356  break;
1357  case TIFF_G3:
1358  case TIFF_G4:
1359  s->fax_opts = 0;
1360  break;
1361  case TIFF_DEFLATE:
1362  case TIFF_ADOBE_DEFLATE:
1363 #if CONFIG_ZLIB
1364  break;
1365 #else
1366  av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
1367  return AVERROR(ENOSYS);
1368 #endif
1369  case TIFF_JPEG:
1370  case TIFF_NEWJPEG:
1371  s->is_jpeg = 1;
1372  break;
1373  case TIFF_LZMA:
1374 #if CONFIG_LZMA
1375  break;
1376 #else
1377  av_log(s->avctx, AV_LOG_ERROR, "LZMA not compiled in\n");
1378  return AVERROR(ENOSYS);
1379 #endif
1380  default:
1381  av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
1382  s->compr);
1383  return AVERROR_INVALIDDATA;
1384  }
1385  break;
1386  case TIFF_ROWSPERSTRIP:
1387  if (!value || (type == TIFF_LONG && value == UINT_MAX))
1388  value = s->height;
1389  s->rps = FFMIN(value, s->height);
1390  break;
1391  case TIFF_STRIP_OFFS:
1392  if (count == 1) {
1393  if (value > INT_MAX) {
1394  av_log(s->avctx, AV_LOG_ERROR,
1395  "strippos %u too large\n", value);
1396  return AVERROR_INVALIDDATA;
1397  }
1398  s->strippos = 0;
1399  s->stripoff = value;
1400  } else
1401  s->strippos = off;
1402  s->strips = count;
1403  if (s->strips == s->bppcount)
1404  s->rps = s->height;
1405  s->sot = type;
1406  break;
1407  case TIFF_STRIP_SIZE:
1408  if (count == 1) {
1409  if (value > INT_MAX) {
1410  av_log(s->avctx, AV_LOG_ERROR,
1411  "stripsize %u too large\n", value);
1412  return AVERROR_INVALIDDATA;
1413  }
1414  s->stripsizesoff = 0;
1415  s->stripsize = value;
1416  s->strips = 1;
1417  } else {
1418  s->stripsizesoff = off;
1419  }
1420  s->strips = count;
1421  s->sstype = type;
1422  break;
1423  case TIFF_XRES:
1424  case TIFF_YRES:
1425  set_sar(s, tag, value, value2);
1426  break;
1427  case TIFF_TILE_OFFSETS:
1428  s->tile_offsets_offset = off;
1429  s->is_tiled = 1;
1430  break;
1431  case TIFF_TILE_BYTE_COUNTS:
1432  s->tile_byte_counts_offset = off;
1433  break;
1434  case TIFF_TILE_LENGTH:
1435  s->tile_length = value;
1436  break;
1437  case TIFF_TILE_WIDTH:
1438  s->tile_width = value;
1439  break;
1440  case TIFF_PREDICTOR:
1441  s->predictor = value;
1442  break;
1443  case TIFF_SUB_IFDS:
1444  if (count == 1)
1445  s->sub_ifd = value;
1446  else if (count > 1)
1447  s->sub_ifd = ff_tget_long(&s->gb, s->le); /** Only get the first SubIFD */
1448  break;
1451  if (count < 1 || count > FF_ARRAY_ELEMS(s->dng_lut))
1452  return AVERROR_INVALIDDATA;
1453  for (int i = 0; i < count; i++)
1454  s->dng_lut[i] = ff_tget(&s->gb, type, s->le);
1455  s->white_level = s->dng_lut[count-1];
1456  break;
1457  case DNG_BLACK_LEVEL:
1458  if (count > FF_ARRAY_ELEMS(s->black_level))
1459  return AVERROR_INVALIDDATA;
1460  s->black_level[0] = value / (float)value2;
1461  for (int i = 0; i < count && count > 1; i++) {
1462  if (type == TIFF_RATIONAL) {
1463  value = ff_tget_long(&s->gb, s->le);
1464  value2 = ff_tget_long(&s->gb, s->le);
1465  if (!value2) {
1466  av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1467  value2 = 1;
1468  }
1469 
1470  s->black_level[i] = value / (float)value2;
1471  } else if (type == TIFF_SRATIONAL) {
1472  int value = ff_tget_long(&s->gb, s->le);
1473  int value2 = ff_tget_long(&s->gb, s->le);
1474  if (!value2) {
1475  av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1476  value2 = 1;
1477  }
1478 
1479  s->black_level[i] = value / (float)value2;
1480  } else {
1481  s->black_level[i] = ff_tget(&s->gb, type, s->le);
1482  }
1483  }
1484  for (int i = count; i < 4 && count > 0; i++)
1485  s->black_level[i] = s->black_level[count - 1];
1486  break;
1487  case DNG_WHITE_LEVEL:
1488  s->white_level = value;
1489  break;
1490  case TIFF_CFA_PATTERN_DIM:
1491  if (count != 2 || (ff_tget(&s->gb, type, s->le) != 2 &&
1492  ff_tget(&s->gb, type, s->le) != 2)) {
1493  av_log(s->avctx, AV_LOG_ERROR, "CFA Pattern dimensions are not 2x2\n");
1494  return AVERROR_INVALIDDATA;
1495  }
1496  break;
1497  case TIFF_CFA_PATTERN:
1498  s->is_bayer = 1;
1499  s->pattern[0] = ff_tget(&s->gb, type, s->le);
1500  s->pattern[1] = ff_tget(&s->gb, type, s->le);
1501  s->pattern[2] = ff_tget(&s->gb, type, s->le);
1502  s->pattern[3] = ff_tget(&s->gb, type, s->le);
1503  break;
1504  case TIFF_PHOTOMETRIC:
1505  switch (value) {
1508  case TIFF_PHOTOMETRIC_RGB:
1512  case TIFF_PHOTOMETRIC_CFA:
1513  case TIFF_PHOTOMETRIC_LINEAR_RAW: // Used by DNG images
1514  s->photometric = value;
1515  break;
1523  "PhotometricInterpretation 0x%04X",
1524  value);
1525  return AVERROR_PATCHWELCOME;
1526  default:
1527  av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
1528  "unknown\n", value);
1529  return AVERROR_INVALIDDATA;
1530  }
1531  break;
1532  case TIFF_FILL_ORDER:
1533  if (value < 1 || value > 2) {
1534  av_log(s->avctx, AV_LOG_ERROR,
1535  "Unknown FillOrder value %d, trying default one\n", value);
1536  value = 1;
1537  }
1538  s->fill_order = value - 1;
1539  break;
1540  case TIFF_PAL: {
1541  GetByteContext pal_gb[3];
1542  off = type_sizes[type];
1543  if (count / 3 > 256 ||
1544  bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
1545  return AVERROR_INVALIDDATA;
1546 
1547  pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
1548  bytestream2_skip(&pal_gb[1], count / 3 * off);
1549  bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
1550 
1551  off = (type_sizes[type] - 1) << 3;
1552  if (off > 31U) {
1553  av_log(s->avctx, AV_LOG_ERROR, "palette shift %d is out of range\n", off);
1554  return AVERROR_INVALIDDATA;
1555  }
1556 
1557  for (i = 0; i < count / 3; i++) {
1558  uint32_t p = 0xFF000000;
1559  p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
1560  p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
1561  p |= ff_tget(&pal_gb[2], type, s->le) >> off;
1562  s->palette[i] = p;
1563  }
1564  s->palette_is_set = 1;
1565  break;
1566  }
1567  case TIFF_PLANAR:
1568  s->planar = value == 2;
1569  break;
1571  if (count != 2) {
1572  av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n");
1573  return AVERROR_INVALIDDATA;
1574  }
1575  for (i = 0; i < count; i++) {
1576  s->subsampling[i] = ff_tget(&s->gb, type, s->le);
1577  if (s->subsampling[i] <= 0) {
1578  av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]);
1579  s->subsampling[i] = 1;
1580  return AVERROR_INVALIDDATA;
1581  }
1582  }
1583  break;
1584  case TIFF_T4OPTIONS:
1585  if (s->compr == TIFF_G3)
1586  s->fax_opts = value;
1587  break;
1588  case TIFF_T6OPTIONS:
1589  if (s->compr == TIFF_G4)
1590  s->fax_opts = value;
1591  break;
1592 #define ADD_METADATA(count, name, sep)\
1593  if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
1594  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
1595  goto end;\
1596  }
1598  ADD_METADATA(count, "ModelPixelScaleTag", NULL);
1599  break;
1601  ADD_METADATA(count, "ModelTransformationTag", NULL);
1602  break;
1603  case TIFF_MODEL_TIEPOINT:
1604  ADD_METADATA(count, "ModelTiepointTag", NULL);
1605  break;
1607  if (s->geotag_count) {
1608  avpriv_request_sample(s->avctx, "Multiple geo key directories");
1609  return AVERROR_INVALIDDATA;
1610  }
1611  ADD_METADATA(1, "GeoTIFF_Version", NULL);
1612  ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
1613  s->geotag_count = ff_tget_short(&s->gb, s->le);
1614  if (s->geotag_count > count / 4 - 1) {
1615  s->geotag_count = count / 4 - 1;
1616  av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
1617  }
1618  if ( bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4
1619  || s->geotag_count == 0) {
1620  s->geotag_count = 0;
1621  return -1;
1622  }
1623  s->geotags = av_calloc(s->geotag_count, sizeof(*s->geotags));
1624  if (!s->geotags) {
1625  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1626  s->geotag_count = 0;
1627  goto end;
1628  }
1629  for (i = 0; i < s->geotag_count; i++) {
1630  unsigned val;
1631  s->geotags[i].key = ff_tget_short(&s->gb, s->le);
1632  s->geotags[i].type = ff_tget_short(&s->gb, s->le);
1633  s->geotags[i].count = ff_tget_short(&s->gb, s->le);
1634  val = ff_tget_short(&s->gb, s->le);
1635 
1636  if (!s->geotags[i].type) {
1637  const char *str = get_geokey_val(s->geotags[i].key, val);
1638 
1639  s->geotags[i].val = str ? av_strdup(str) : av_asprintf("Unknown-%u", val);
1640  if (!s->geotags[i].val)
1641  return AVERROR(ENOMEM);
1642  } else
1643  s->geotags[i].offset = val;
1644  }
1645  break;
1647  if (count >= INT_MAX / sizeof(int64_t))
1648  return AVERROR_INVALIDDATA;
1649  if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
1650  return AVERROR_INVALIDDATA;
1651  dp = av_malloc_array(count, sizeof(double));
1652  if (!dp) {
1653  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1654  goto end;
1655  }
1656  for (i = 0; i < count; i++)
1657  dp[i] = ff_tget_double(&s->gb, s->le);
1658  for (i = 0; i < s->geotag_count; i++) {
1659  if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
1660  if (s->geotags[i].count == 0
1661  || s->geotags[i].offset + s->geotags[i].count > count) {
1662  av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1663  } else if (s->geotags[i].val) {
1664  av_log(s->avctx, AV_LOG_WARNING, "Duplicate GeoTIFF key %d\n", s->geotags[i].key);
1665  } else {
1666  char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
1667  if (!ap) {
1668  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1669  av_freep(&dp);
1670  return AVERROR(ENOMEM);
1671  }
1672  s->geotags[i].val = ap;
1673  }
1674  }
1675  }
1676  av_freep(&dp);
1677  break;
1678  case TIFF_GEO_ASCII_PARAMS:
1679  pos = bytestream2_tell(&s->gb);
1680  for (i = 0; i < s->geotag_count; i++) {
1681  if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
1682  if (s->geotags[i].count == 0
1683  || s->geotags[i].offset + s->geotags[i].count > count) {
1684  av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1685  } else {
1686  char *ap;
1687 
1688  bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
1689  if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
1690  return AVERROR_INVALIDDATA;
1691  if (s->geotags[i].val)
1692  return AVERROR_INVALIDDATA;
1693  ap = av_malloc(s->geotags[i].count);
1694  if (!ap) {
1695  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1696  return AVERROR(ENOMEM);
1697  }
1698  bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
1699  ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
1700  s->geotags[i].val = ap;
1701  }
1702  }
1703  }
1704  break;
1705  case TIFF_ICC_PROFILE:
1706  gb_temp = s->gb;
1707  bytestream2_seek(&gb_temp, off, SEEK_SET);
1708 
1709  if (bytestream2_get_bytes_left(&gb_temp) < count)
1710  return AVERROR_INVALIDDATA;
1711 
1713  if (ret < 0)
1714  return ret;
1715  if (sd)
1716  bytestream2_get_bufferu(&gb_temp, sd->data, count);
1717  break;
1718  case TIFF_ARTIST:
1719  ADD_METADATA(count, "artist", NULL);
1720  break;
1721  case TIFF_COPYRIGHT:
1722  ADD_METADATA(count, "copyright", NULL);
1723  break;
1724  case TIFF_DATE:
1725  ADD_METADATA(count, "date", NULL);
1726  break;
1727  case TIFF_DOCUMENT_NAME:
1728  ADD_METADATA(count, "document_name", NULL);
1729  break;
1730  case TIFF_HOST_COMPUTER:
1731  ADD_METADATA(count, "computer", NULL);
1732  break;
1734  ADD_METADATA(count, "description", NULL);
1735  break;
1736  case TIFF_MAKE:
1737  ADD_METADATA(count, "make", NULL);
1738  break;
1739  case TIFF_MODEL:
1740  ADD_METADATA(count, "model", NULL);
1741  break;
1742  case TIFF_PAGE_NAME:
1743  ADD_METADATA(count, "page_name", NULL);
1744  break;
1745  case TIFF_PAGE_NUMBER:
1746  ADD_METADATA(count, "page_number", " / ");
1747  // need to seek back to re-read the page number
1748  bytestream2_seek(&s->gb, -count * sizeof(uint16_t), SEEK_CUR);
1749  // read the page number
1750  s->cur_page = ff_tget_short(&s->gb, s->le);
1751  // get back to where we were before the previous seek
1752  bytestream2_seek(&s->gb, count * sizeof(uint16_t) - sizeof(uint16_t), SEEK_CUR);
1753  break;
1754  case TIFF_SOFTWARE_NAME:
1755  ADD_METADATA(count, "software", NULL);
1756  break;
1757  case DNG_VERSION:
1758  if (count == 4) {
1759  unsigned int ver[4];
1760  ver[0] = ff_tget(&s->gb, type, s->le);
1761  ver[1] = ff_tget(&s->gb, type, s->le);
1762  ver[2] = ff_tget(&s->gb, type, s->le);
1763  ver[3] = ff_tget(&s->gb, type, s->le);
1764 
1765  av_log(s->avctx, AV_LOG_DEBUG, "DNG file, version %u.%u.%u.%u\n",
1766  ver[0], ver[1], ver[2], ver[3]);
1767 
1769  }
1770  break;
1771  case DNG_ANALOG_BALANCE:
1772  if (type != TIFF_RATIONAL)
1773  break;
1774 
1775  for (int i = 0; i < 3; i++) {
1776  value = ff_tget_long(&s->gb, s->le);
1777  value2 = ff_tget_long(&s->gb, s->le);
1778  if (!value2) {
1779  av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1780  value2 = 1;
1781  }
1782 
1783  s->analog_balance[i] = value / (float)value2;
1784  }
1785  break;
1786  case DNG_AS_SHOT_NEUTRAL:
1787  if (type != TIFF_RATIONAL)
1788  break;
1789 
1790  for (int i = 0; i < 3; i++) {
1791  value = ff_tget_long(&s->gb, s->le);
1792  value2 = ff_tget_long(&s->gb, s->le);
1793  if (!value2) {
1794  av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1795  value2 = 1;
1796  }
1797 
1798  s->as_shot_neutral[i] = value / (float)value2;
1799  }
1800  break;
1801  case DNG_AS_SHOT_WHITE_XY:
1802  if (type != TIFF_RATIONAL)
1803  break;
1804 
1805  for (int i = 0; i < 2; i++) {
1806  value = ff_tget_long(&s->gb, s->le);
1807  value2 = ff_tget_long(&s->gb, s->le);
1808  if (!value2) {
1809  av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1810  value2 = 1;
1811  }
1812 
1813  s->as_shot_white[i] = value / (float)value2;
1814  }
1815  s->as_shot_white[2] = 1.f - s->as_shot_white[0] - s->as_shot_white[1];
1816  for (int i = 0; i < 3; i++) {
1817  s->as_shot_white[i] /= d65_white[i];
1818  }
1819  break;
1820  case DNG_COLOR_MATRIX1:
1821  case DNG_COLOR_MATRIX2:
1822  for (int i = 0; i < 3; i++) {
1823  for (int j = 0; j < 3; j++) {
1824  int value = ff_tget_long(&s->gb, s->le);
1825  int value2 = ff_tget_long(&s->gb, s->le);
1826  if (!value2) {
1827  av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1828  value2 = 1;
1829  }
1830  s->color_matrix[i][j] = value / (float)value2;
1831  }
1832  s->use_color_matrix = 1;
1833  }
1834  break;
1837  for (int i = 0; i < 3; i++) {
1838  for (int j = 0; j < 3; j++) {
1839  int value = ff_tget_long(&s->gb, s->le);
1840  int value2 = ff_tget_long(&s->gb, s->le);
1841  if (!value2) {
1842  av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator\n");
1843  value2 = 1;
1844  }
1845  s->camera_calibration[i][j] = value / (float)value2;
1846  }
1847  }
1848  break;
1849  case CINEMADNG_TIME_CODES:
1850  case CINEMADNG_FRAME_RATE:
1851  case CINEMADNG_T_STOP:
1852  case CINEMADNG_REEL_NAME:
1855  break;
1856  default:
1857  if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1858  av_log(s->avctx, AV_LOG_ERROR,
1859  "Unknown or unsupported tag %d/0x%0X\n",
1860  tag, tag);
1861  return AVERROR_INVALIDDATA;
1862  }
1863  }
1864 end:
1865  if (s->bpp > 128U) {
1866  av_log(s->avctx, AV_LOG_ERROR,
1867  "This format is not supported (bpp=%d, %d components)\n",
1868  s->bpp, count);
1869  s->bpp = 0;
1870  return AVERROR_INVALIDDATA;
1871  }
1872  bytestream2_seek(&s->gb, start, SEEK_SET);
1873  return 0;
1874 }
1875 
1876 static const float xyz2rgb[3][3] = {
1877  { 0.412453f, 0.357580f, 0.180423f },
1878  { 0.212671f, 0.715160f, 0.072169f },
1879  { 0.019334f, 0.119193f, 0.950227f },
1880 };
1881 
1883  float rgb2cam[3][4],
1884  double cam2xyz[4][3])
1885 {
1886  double cam2rgb[4][3], num;
1887  int i, j, k;
1888 
1889  for (i = 0; i < 3; i++) {
1890  for (j = 0; j < 3; j++) {
1891  cam2rgb[i][j] = 0.;
1892  for (k = 0; k < 3; k++)
1893  cam2rgb[i][j] += cam2xyz[i][k] * xyz2rgb[k][j];
1894  }
1895  }
1896 
1897  for (i = 0; i < 3; i++) {
1898  for (num = j = 0; j < 3; j++)
1899  num += cam2rgb[i][j];
1900  if (!num)
1901  num = 1;
1902  for (j = 0; j < 3; j++)
1903  cam2rgb[i][j] /= num;
1904  s->premultiply[i] = 1.f / num;
1905  }
1906 }
1907 
1908 static int decode_frame(AVCodecContext *avctx, AVFrame *p,
1909  int *got_frame, AVPacket *avpkt)
1910 {
1911  TiffContext *const s = avctx->priv_data;
1912  unsigned off, last_off = 0;
1913  int le, ret, plane, planes;
1914  int i, j, entries, stride;
1915  unsigned soff, ssize;
1916  uint8_t *dst;
1917  GetByteContext stripsizes;
1918  GetByteContext stripdata;
1919  int retry_for_subifd, retry_for_page;
1920  int is_dng;
1921  int has_tile_bits, has_strip_bits;
1922 
1923  bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1924 
1925  // parse image header
1926  if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
1927  av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
1928  return ret;
1929  } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1930  av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1931  return AVERROR_INVALIDDATA;
1932  }
1933  s->le = le;
1934  // TIFF_BPP is not a required tag and defaults to 1
1935 
1936  s->tiff_type = TIFF_TYPE_TIFF;
1937  s->use_color_matrix = 0;
1938 again:
1939  s->is_thumbnail = 0;
1940  s->bppcount = s->bpp = 1;
1941  s->photometric = TIFF_PHOTOMETRIC_NONE;
1942  s->compr = TIFF_RAW;
1943  s->fill_order = 0;
1944  s->white_level = 0;
1945  s->is_bayer = 0;
1946  s->is_tiled = 0;
1947  s->is_jpeg = 0;
1948  s->cur_page = 0;
1949  s->last_tag = 0;
1950 
1951  for (i = 0; i < 65536; i++)
1952  s->dng_lut[i] = i;
1953 
1954  for (i = 0; i < FF_ARRAY_ELEMS(s->black_level); i++)
1955  s->black_level[i] = 0.f;
1956 
1957  for (i = 0; i < FF_ARRAY_ELEMS(s->as_shot_neutral); i++)
1958  s->as_shot_neutral[i] = 0.f;
1959 
1960  for (i = 0; i < FF_ARRAY_ELEMS(s->as_shot_white); i++)
1961  s->as_shot_white[i] = 1.f;
1962 
1963  for (i = 0; i < FF_ARRAY_ELEMS(s->analog_balance); i++)
1964  s->analog_balance[i] = 1.f;
1965 
1966  for (i = 0; i < FF_ARRAY_ELEMS(s->premultiply); i++)
1967  s->premultiply[i] = 1.f;
1968 
1969  for (i = 0; i < 4; i++)
1970  for (j = 0; j < 4; j++)
1971  s->camera_calibration[i][j] = i == j;
1972 
1973  free_geotags(s);
1974 
1975  // Reset these offsets so we can tell if they were set this frame
1976  s->stripsizesoff = s->strippos = 0;
1977  /* parse image file directory */
1978  bytestream2_seek(&s->gb, off, SEEK_SET);
1979  entries = ff_tget_short(&s->gb, le);
1980  if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1981  return AVERROR_INVALIDDATA;
1982  for (i = 0; i < entries; i++) {
1983  if ((ret = tiff_decode_tag(s, p)) < 0)
1984  return ret;
1985  }
1986 
1987  if (s->get_thumbnail && !s->is_thumbnail) {
1988  av_log(avctx, AV_LOG_INFO, "No embedded thumbnail present\n");
1989  return AVERROR_EOF;
1990  }
1991 
1992  /** whether we should process this IFD's SubIFD */
1993  retry_for_subifd = s->sub_ifd && (s->get_subimage || (!s->get_thumbnail && s->is_thumbnail));
1994  /** whether we should process this multi-page IFD's next page */
1995  retry_for_page = s->get_page && s->cur_page + 1 < s->get_page; // get_page is 1-indexed
1996 
1997  if (retry_for_page) {
1998  // set offset to the next IFD
1999  off = ff_tget_long(&s->gb, le);
2000  } else if (retry_for_subifd) {
2001  // set offset to the SubIFD
2002  off = s->sub_ifd;
2003  }
2004 
2005  if (retry_for_subifd || retry_for_page) {
2006  if (!off) {
2007  av_log(avctx, AV_LOG_ERROR, "Requested entry not found\n");
2008  return AVERROR_INVALIDDATA;
2009  }
2010  if (off <= last_off) {
2011  avpriv_request_sample(s->avctx, "non increasing IFD offset");
2012  return AVERROR_INVALIDDATA;
2013  }
2014  last_off = off;
2015  if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
2016  av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
2017  return AVERROR_INVALIDDATA;
2018  }
2019  s->sub_ifd = 0;
2020  goto again;
2021  }
2022 
2023  /* At this point we've decided on which (Sub)IFD to process */
2024 
2025  is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
2026 
2027  for (i = 0; i<s->geotag_count; i++) {
2028  const char *keyname = get_geokey_name(s->geotags[i].key);
2029  if (!keyname) {
2030  av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
2031  continue;
2032  }
2033  if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
2034  av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
2035  continue;
2036  }
2037  ret = av_dict_set(&p->metadata, keyname, s->geotags[i].val, AV_DICT_DONT_STRDUP_VAL);
2038  s->geotags[i].val = NULL;
2039  if (ret<0) {
2040  av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
2041  return ret;
2042  }
2043  }
2044 
2045  if (is_dng) {
2046  double cam2xyz[4][3];
2047  float cmatrix[3][4];
2048  float pmin = FLT_MAX;
2049  int bps;
2050 
2051  for (i = 0; i < 3; i++) {
2052  for (j = 0; j < 3; j++)
2053  s->camera_calibration[i][j] *= s->analog_balance[i];
2054  }
2055 
2056  if (!s->use_color_matrix) {
2057  for (i = 0; i < 3; i++) {
2058  if (s->camera_calibration[i][i])
2059  s->premultiply[i] /= s->camera_calibration[i][i];
2060  }
2061  } else {
2062  for (int c = 0; c < 3; c++) {
2063  for (i = 0; i < 3; i++) {
2064  cam2xyz[c][i] = 0.;
2065  for (j = 0; j < 3; j++)
2066  cam2xyz[c][i] += s->camera_calibration[c][j] * s->color_matrix[j][i] * s->as_shot_white[i];
2067  }
2068  }
2069 
2070  camera_xyz_coeff(s, cmatrix, cam2xyz);
2071  }
2072 
2073  for (int c = 0; c < 3; c++)
2074  pmin = fminf(pmin, s->premultiply[c]);
2075 
2076  for (int c = 0; c < 3; c++)
2077  s->premultiply[c] /= pmin;
2078 
2079  if (s->bpp % s->bppcount)
2080  return AVERROR_INVALIDDATA;
2081  bps = s->bpp / s->bppcount;
2082  if (bps < 8 || bps > 32)
2083  return AVERROR_INVALIDDATA;
2084 
2085  if (s->white_level == 0)
2086  s->white_level = (1LL << bps) - 1; /* Default value as per the spec */
2087 
2088  if (s->white_level <= s->black_level[0]) {
2089  av_log(avctx, AV_LOG_ERROR, "BlackLevel (%g) must be less than WhiteLevel (%"PRId32")\n",
2090  s->black_level[0], s->white_level);
2091  return AVERROR_INVALIDDATA;
2092  }
2093 
2094  if (s->planar)
2095  return AVERROR_PATCHWELCOME;
2096  }
2097 
2098  if (!s->is_tiled && !s->strippos && !s->stripoff) {
2099  av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
2100  return AVERROR_INVALIDDATA;
2101  }
2102 
2103  has_tile_bits = s->is_tiled || s->tile_byte_counts_offset || s->tile_offsets_offset || s->tile_width || s->tile_length;
2104  has_strip_bits = s->strippos || s->strips || s->stripoff || s->rps || s->sot || s->sstype || s->stripsize || s->stripsizesoff;
2105 
2106  if (has_tile_bits && has_strip_bits) {
2107  int tiled_dng = s->is_tiled && is_dng;
2108  av_log(avctx, tiled_dng ? AV_LOG_WARNING : AV_LOG_ERROR, "Tiled TIFF is not allowed to strip\n");
2109  if (!tiled_dng)
2110  return AVERROR_INVALIDDATA;
2111  }
2112 
2113  /* now we have the data and may start decoding */
2114  if ((ret = init_image(s, p)) <= 0)
2115  return ret;
2116 
2117  if (!s->is_tiled || has_strip_bits) {
2118  if (s->strips == 1 && !s->stripsize) {
2119  av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
2120  s->stripsize = avpkt->size - s->stripoff;
2121  }
2122 
2123  if (s->stripsizesoff) {
2124  if (s->stripsizesoff >= (unsigned)avpkt->size)
2125  return AVERROR_INVALIDDATA;
2126  bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
2127  avpkt->size - s->stripsizesoff);
2128  }
2129  if (s->strippos) {
2130  if (s->strippos >= (unsigned)avpkt->size)
2131  return AVERROR_INVALIDDATA;
2132  bytestream2_init(&stripdata, avpkt->data + s->strippos,
2133  avpkt->size - s->strippos);
2134  }
2135 
2136  if (s->rps <= 0 || s->rps % s->subsampling[1]) {
2137  av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
2138  return AVERROR_INVALIDDATA;
2139  }
2140  }
2141 
2142  if (s->photometric == TIFF_PHOTOMETRIC_LINEAR_RAW ||
2143  s->photometric == TIFF_PHOTOMETRIC_CFA) {
2145  } else if (s->photometric == TIFF_PHOTOMETRIC_BLACK_IS_ZERO) {
2147  }
2148 
2149  /* Handle DNG images with JPEG-compressed tiles */
2150 
2151  if (is_dng && s->is_tiled) {
2152  if (!s->is_jpeg) {
2153  avpriv_report_missing_feature(avctx, "DNG uncompressed tiled images");
2154  return AVERROR_PATCHWELCOME;
2155  } else if (!s->is_bayer) {
2156  avpriv_report_missing_feature(avctx, "DNG JPG-compressed tiled non-bayer-encoded images");
2157  return AVERROR_PATCHWELCOME;
2158  } else {
2159  if ((ret = dng_decode_tiles(avctx, p, avpkt)) > 0)
2160  *got_frame = 1;
2161  return ret;
2162  }
2163  }
2164 
2165  /* Handle TIFF images and DNG images with uncompressed strips (non-tiled) */
2166 
2167  planes = s->planar ? s->bppcount : 1;
2168  for (plane = 0; plane < planes; plane++) {
2169  uint8_t *five_planes = NULL;
2170  int remaining = avpkt->size;
2171  int decoded_height;
2172  stride = p->linesize[plane];
2173  dst = p->data[plane];
2174  if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2175  s->avctx->pix_fmt == AV_PIX_FMT_RGBA) {
2176  stride = stride * 5 / 4;
2177  five_planes =
2178  dst = av_malloc(stride * s->height);
2179  if (!dst)
2180  return AVERROR(ENOMEM);
2181  }
2182  for (i = 0; i < s->height; i += s->rps) {
2183  if (i)
2184  dst += s->rps * stride;
2185  if (s->stripsizesoff)
2186  ssize = ff_tget(&stripsizes, s->sstype, le);
2187  else
2188  ssize = s->stripsize;
2189 
2190  if (s->strippos)
2191  soff = ff_tget(&stripdata, s->sot, le);
2192  else
2193  soff = s->stripoff;
2194 
2195  if (soff > avpkt->size || ssize > avpkt->size - soff || ssize > remaining) {
2196  av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
2197  av_freep(&five_planes);
2198  return AVERROR_INVALIDDATA;
2199  }
2200  remaining -= ssize;
2201  if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i,
2202  FFMIN(s->rps, s->height - i))) < 0) {
2203  if (avctx->err_recognition & AV_EF_EXPLODE) {
2204  av_freep(&five_planes);
2205  return ret;
2206  }
2207  break;
2208  }
2209  }
2210  decoded_height = FFMIN(i, s->height);
2211 
2212  if (s->predictor == 2) {
2213  if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
2214  av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported");
2215  return AVERROR_PATCHWELCOME;
2216  }
2217  dst = five_planes ? five_planes : p->data[plane];
2218  soff = s->bpp >> 3;
2219  if (s->planar)
2220  soff = FFMAX(soff / s->bppcount, 1);
2221  ssize = s->width * soff;
2222  if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
2223  s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
2224  s->avctx->pix_fmt == AV_PIX_FMT_GRAY16LE ||
2225  s->avctx->pix_fmt == AV_PIX_FMT_YA16LE ||
2226  s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
2227  s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
2228  for (i = 0; i < decoded_height; i++) {
2229  for (j = soff; j < ssize; j += 2)
2230  AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
2231  dst += stride;
2232  }
2233  } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
2234  s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
2235  s->avctx->pix_fmt == AV_PIX_FMT_GRAY16BE ||
2236  s->avctx->pix_fmt == AV_PIX_FMT_YA16BE ||
2237  s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
2238  s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
2239  for (i = 0; i < decoded_height; i++) {
2240  for (j = soff; j < ssize; j += 2)
2241  AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
2242  dst += stride;
2243  }
2244  } else {
2245  for (i = 0; i < decoded_height; i++) {
2246  for (j = soff; j < ssize; j++)
2247  dst[j] += dst[j - soff];
2248  dst += stride;
2249  }
2250  }
2251  }
2252 
2253  /* Floating point predictor
2254  TIFF Technical Note 3 http://chriscox.org/TIFFTN3d1.pdf */
2255  if (s->predictor == 3) {
2256  int channels = s->bppcount;
2257  int group_size;
2258  uint8_t *tmpbuf;
2259  int bpc;
2260 
2261  dst = five_planes ? five_planes : p->data[plane];
2262  soff = s->bpp >> 3;
2263  if (s->planar) {
2264  soff = FFMAX(soff / s->bppcount, 1);
2265  channels = 1;
2266  }
2267  ssize = s->width * soff;
2268  bpc = FFMAX(soff / s->bppcount, 1); /* Bytes per component */
2269  group_size = s->width * channels;
2270 
2271  tmpbuf = av_malloc(ssize);
2272  if (!tmpbuf) {
2273  av_free(five_planes);
2274  return AVERROR(ENOMEM);
2275  }
2276 
2277  if (s->avctx->pix_fmt == AV_PIX_FMT_RGBF32LE ||
2278  s->avctx->pix_fmt == AV_PIX_FMT_RGBAF32LE) {
2279  for (i = 0; i < decoded_height; i++) {
2280  /* Copy first sample byte for each channel */
2281  for (j = 0; j < channels; j++)
2282  tmpbuf[j] = dst[j];
2283 
2284  /* Decode horizontal differences */
2285  for (j = channels; j < ssize; j++)
2286  tmpbuf[j] = dst[j] + tmpbuf[j-channels];
2287 
2288  /* Combine shuffled bytes from their separate groups. Each
2289  byte of every floating point value in a row of pixels is
2290  split and combined into separate groups. A group of all
2291  the sign/exponents bytes in the row and groups for each
2292  of the upper, mid, and lower mantissa bytes in the row. */
2293  for (j = 0; j < group_size; j++) {
2294  for (int k = 0; k < bpc; k++) {
2295  dst[bpc * j + k] = tmpbuf[(bpc - k - 1) * group_size + j];
2296  }
2297  }
2298  dst += stride;
2299  }
2300  } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGBF32BE ||
2301  s->avctx->pix_fmt == AV_PIX_FMT_RGBAF32BE) {
2302  /* Same as LE only the shuffle at the end is reversed */
2303  for (i = 0; i < decoded_height; i++) {
2304  for (j = 0; j < channels; j++)
2305  tmpbuf[j] = dst[j];
2306 
2307  for (j = channels; j < ssize; j++)
2308  tmpbuf[j] = dst[j] + tmpbuf[j-channels];
2309 
2310  for (j = 0; j < group_size; j++) {
2311  for (int k = 0; k < bpc; k++) {
2312  dst[bpc * j + k] = tmpbuf[k * group_size + j];
2313  }
2314  }
2315  dst += stride;
2316  }
2317  } else {
2318  av_log(s->avctx, AV_LOG_ERROR, "unsupported floating point pixel format\n");
2319  }
2320  av_free(tmpbuf);
2321  }
2322 
2323  if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) {
2324  int c = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255);
2325  dst = p->data[plane];
2326  for (i = 0; i < s->height; i++) {
2327  for (j = 0; j < stride; j++)
2328  dst[j] = c - dst[j];
2329  dst += stride;
2330  }
2331  }
2332 
2333  if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2334  (s->avctx->pix_fmt == AV_PIX_FMT_RGB0 || s->avctx->pix_fmt == AV_PIX_FMT_RGBA)) {
2335  int x = s->avctx->pix_fmt == AV_PIX_FMT_RGB0 ? 4 : 5;
2336  uint8_t *src = five_planes ? five_planes : p->data[plane];
2337  dst = p->data[plane];
2338  for (i = 0; i < s->height; i++) {
2339  for (j = 0; j < s->width; j++) {
2340  int k = 255 - src[x * j + 3];
2341  int r = (255 - src[x * j ]) * k;
2342  int g = (255 - src[x * j + 1]) * k;
2343  int b = (255 - src[x * j + 2]) * k;
2344  dst[4 * j ] = r * 257 >> 16;
2345  dst[4 * j + 1] = g * 257 >> 16;
2346  dst[4 * j + 2] = b * 257 >> 16;
2347  dst[4 * j + 3] = s->avctx->pix_fmt == AV_PIX_FMT_RGBA ? src[x * j + 4] : 255;
2348  }
2349  src += stride;
2350  dst += p->linesize[plane];
2351  }
2352  av_freep(&five_planes);
2353  } else if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2354  s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) {
2355  dst = p->data[plane];
2356  for (i = 0; i < s->height; i++) {
2357  for (j = 0; j < s->width; j++) {
2358  uint64_t k = 65535 - AV_RB16(dst + 8 * j + 6);
2359  uint64_t r = (65535 - AV_RB16(dst + 8 * j )) * k;
2360  uint64_t g = (65535 - AV_RB16(dst + 8 * j + 2)) * k;
2361  uint64_t b = (65535 - AV_RB16(dst + 8 * j + 4)) * k;
2362  AV_WB16(dst + 8 * j , r * 65537 >> 32);
2363  AV_WB16(dst + 8 * j + 2, g * 65537 >> 32);
2364  AV_WB16(dst + 8 * j + 4, b * 65537 >> 32);
2365  AV_WB16(dst + 8 * j + 6, 65535);
2366  }
2367  dst += p->linesize[plane];
2368  }
2369  }
2370  }
2371 
2372  if (s->planar && s->bppcount > 2) {
2373  FFSWAP(uint8_t*, p->data[0], p->data[2]);
2374  FFSWAP(int, p->linesize[0], p->linesize[2]);
2375  FFSWAP(uint8_t*, p->data[0], p->data[1]);
2376  FFSWAP(int, p->linesize[0], p->linesize[1]);
2377  }
2378 
2379  if (s->is_bayer && s->white_level && s->bpp == 16 && !is_dng) {
2380  uint16_t *dst = (uint16_t *)p->data[0];
2381  for (i = 0; i < s->height; i++) {
2382  for (j = 0; j < s->width; j++)
2383  dst[j] = FFMIN((dst[j] / (float)s->white_level) * 65535, 65535);
2384  dst += stride / 2;
2385  }
2386  }
2387 
2388  *got_frame = 1;
2389 
2390  return avpkt->size;
2391 }
2392 
2394 {
2395  TiffContext *s = avctx->priv_data;
2396  const AVCodec *codec;
2397  int ret;
2398 
2399  s->width = 0;
2400  s->height = 0;
2401  s->subsampling[0] =
2402  s->subsampling[1] = 1;
2403  s->avctx = avctx;
2404  ff_lzw_decode_open(&s->lzw);
2405  if (!s->lzw)
2406  return AVERROR(ENOMEM);
2408 
2409  /* Allocate JPEG frame */
2410  s->jpgframe = av_frame_alloc();
2411  s->jpkt = av_packet_alloc();
2412  if (!s->jpgframe || !s->jpkt)
2413  return AVERROR(ENOMEM);
2414 
2415  /* Prepare everything needed for JPEG decoding */
2417  if (!codec)
2418  return AVERROR_BUG;
2419  s->avctx_mjpeg = avcodec_alloc_context3(codec);
2420  if (!s->avctx_mjpeg)
2421  return AVERROR(ENOMEM);
2422  s->avctx_mjpeg->flags = avctx->flags;
2423  s->avctx_mjpeg->flags2 = avctx->flags2;
2424  s->avctx_mjpeg->idct_algo = avctx->idct_algo;
2425  s->avctx_mjpeg->max_pixels = avctx->max_pixels;
2426  ret = avcodec_open2(s->avctx_mjpeg, codec, NULL);
2427  if (ret < 0) {
2428  return ret;
2429  }
2430 
2431  return 0;
2432 }
2433 
2434 static av_cold int tiff_end(AVCodecContext *avctx)
2435 {
2436  TiffContext *const s = avctx->priv_data;
2437 
2438  free_geotags(s);
2439 
2440  ff_lzw_decode_close(&s->lzw);
2441  av_freep(&s->deinvert_buf);
2442  s->deinvert_buf_size = 0;
2443  av_freep(&s->yuv_line);
2444  s->yuv_line_size = 0;
2445  av_frame_free(&s->jpgframe);
2446  av_packet_free(&s->jpkt);
2447  avcodec_free_context(&s->avctx_mjpeg);
2448  return 0;
2449 }
2450 
2451 #define OFFSET(x) offsetof(TiffContext, x)
2452 static const AVOption tiff_options[] = {
2453  { "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 },
2454  { "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 },
2455  { "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 },
2456  { NULL },
2457 };
2458 
2459 static const AVClass tiff_decoder_class = {
2460  .class_name = "TIFF decoder",
2461  .item_name = av_default_item_name,
2462  .option = tiff_options,
2463  .version = LIBAVUTIL_VERSION_INT,
2464 };
2465 
2467  .p.name = "tiff",
2468  CODEC_LONG_NAME("TIFF image"),
2469  .p.type = AVMEDIA_TYPE_VIDEO,
2470  .p.id = AV_CODEC_ID_TIFF,
2471  .priv_data_size = sizeof(TiffContext),
2472  .init = tiff_init,
2473  .close = tiff_end,
2475  .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
2478  .p.priv_class = &tiff_decoder_class,
2479 };
TiffContext::tiff_type
enum TiffType tiff_type
Definition: tiff.c:72
AVFrame::color_trc
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:657
av_packet_unref
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: packet.c:427
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:186
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:2466
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:42
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:566
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:2965
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:1882
AVCOL_TRC_LINEAR
@ AVCOL_TRC_LINEAR
"Linear transfer characteristics"
Definition: pixfmt.h:589
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:2451
AVCodecContext::err_recognition
int err_recognition
Error recognition; may misdetect some more or less valid parts as errors.
Definition: avcodec.h:1420
TiffContext::sot
int sot
Definition: tiff.c:108
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:160
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:374
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:2434
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:520
TIFF_PHOTOMETRIC_ITU_LAB
@ TIFF_PHOTOMETRIC_ITU_LAB
Definition: tiff.h:199
AVOption
AVOption.
Definition: opt.h:357
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:126
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:506
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:395
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
planes
static const struct @436 planes[]
TIFF_GEO_KEY_UNDEFINED
#define TIFF_GEO_KEY_UNDEFINED
Definition: tiff_data.h:119
tiff_options
static const AVOption tiff_options[]
Definition: tiff.c:2452
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:130
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:502
TIFF_T6OPTIONS
@ TIFF_T6OPTIONS
Definition: tiff.h:68
val
static double val(void *priv, double ch)
Definition: aeval.c:78
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:462
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:585
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:148
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:180
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:625
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:121
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
width
#define width
FF_CODEC_DECODE_CB
#define FF_CODEC_DECODE_CB(func)
Definition: codec_internal.h:286
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:986
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:698
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:201
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:1935
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:271
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:503
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:220
TIFF_LZW
@ TIFF_LZW
Definition: tiff.h:130
tiff_init
static av_cold int tiff_init(AVCodecContext *avctx)
Definition: tiff.c:2393
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:66
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:399
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:505
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:142
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:965
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:509
init
int(* init)(AVBSFContext *ctx)
Definition: dts2pts.c:366
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:521
TIFF_TYPE_CINEMADNG
@ TIFF_TYPE_CINEMADNG
Digital Negative (DNG) image part of an CinemaDNG image sequence.
Definition: tiff.h:40
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
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:1852
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:1876
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:1959
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:54
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:252
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:461
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:406
height
#define height
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:191
tiff_decoder_class
static const AVClass tiff_decoder_class
Definition: tiff.c:2459
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:696
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:1908
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:286
av_frame_unref
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:606
AVCodecContext::idct_algo
int idct_algo
IDCT algorithm, see FF_IDCT_* below.
Definition: avcodec.h:1548
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:81
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:1851
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:71
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:445
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
Definition: opt.h:245
AVFrame::metadata
AVDictionary * metadata
metadata.
Definition: frame.h:692
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:284
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:250
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:472
AVPacket
This structure stores compressed data.
Definition: packet.h:497
TIFF_SUB_IFDS
@ TIFF_SUB_IFDS
Definition: tiff.h:81
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:261
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
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
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:419
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:2038
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
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:460
TiffContext::predictor
int predictor
Definition: tiff.c:83
AV_PIX_FMT_BAYER_RGGB16
#define AV_PIX_FMT_BAYER_RGGB16
Definition: pixfmt.h:504
int
int
Definition: ffmpeg_filter.c:424
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
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