FFmpeg  4.4
tiff.c
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1 /*
2  * Copyright (c) 2006 Konstantin Shishkov
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * TIFF image decoder
24  * @author Konstantin Shishkov
25  */
26 
27 #include "config.h"
28 #if CONFIG_ZLIB
29 #include <zlib.h>
30 #endif
31 #if CONFIG_LZMA
32 #define LZMA_API_STATIC
33 #include <lzma.h>
34 #endif
35 
36 #include "libavutil/attributes.h"
37 #include "libavutil/avstring.h"
38 #include "libavutil/error.h"
39 #include "libavutil/intreadwrite.h"
40 #include "libavutil/imgutils.h"
41 #include "libavutil/opt.h"
42 #include "avcodec.h"
43 #include "bytestream.h"
44 #include "faxcompr.h"
45 #include "internal.h"
46 #include "lzw.h"
47 #include "mathops.h"
48 #include "tiff.h"
49 #include "tiff_data.h"
50 #include "mjpegdec.h"
51 #include "thread.h"
52 #include "get_bits.h"
53 
54 typedef struct TiffContext {
55  AVClass *class;
58 
59  /* JPEG decoding for DNG */
60  AVCodecContext *avctx_mjpeg; // wrapper context for MJPEG
61  AVPacket *jpkt; // encoded JPEG tile
62  AVFrame *jpgframe; // decoded JPEG tile
63 
65  uint16_t get_page;
67 
68  enum TiffType tiff_type;
69  int width, height;
70  unsigned int bpp, bppcount;
71  uint32_t palette[256];
73  int le;
74  enum TiffCompr compr;
76  int planar;
77  int subsampling[2];
78  int fax_opts;
79  int predictor;
81  uint32_t res[4];
83  unsigned last_tag;
84 
85  int is_bayer;
87  unsigned black_level;
88  unsigned white_level;
89  uint16_t dng_lut[65536];
90 
91  uint32_t sub_ifd;
92  uint16_t cur_page;
93 
94  int strips, rps, sstype;
95  int sot;
98 
99  /* Tile support */
100  int is_tiled;
104 
105  int is_jpeg;
106 
110  unsigned int yuv_line_size;
112  unsigned int fax_buffer_size;
113 
116 } TiffContext;
117 
118 static void tiff_set_type(TiffContext *s, enum TiffType tiff_type) {
119  if (s->tiff_type < tiff_type) // Prioritize higher-valued entries
120  s->tiff_type = tiff_type;
121 }
122 
123 static void free_geotags(TiffContext *const s)
124 {
125  int i;
126  for (i = 0; i < s->geotag_count; i++) {
127  if (s->geotags[i].val)
128  av_freep(&s->geotags[i].val);
129  }
130  av_freep(&s->geotags);
131  s->geotag_count = 0;
132 }
133 
134 #define RET_GEOKEY(TYPE, array, element)\
135  if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
136  key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(tiff_##array##_name_type_map))\
137  return tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].element;
138 
139 static const char *get_geokey_name(int key)
140 {
141  RET_GEOKEY(VERT, vert, name);
142  RET_GEOKEY(PROJ, proj, name);
143  RET_GEOKEY(GEOG, geog, name);
144  RET_GEOKEY(CONF, conf, name);
145 
146  return NULL;
147 }
148 
149 static int get_geokey_type(int key)
150 {
151  RET_GEOKEY(VERT, vert, type);
152  RET_GEOKEY(PROJ, proj, type);
153  RET_GEOKEY(GEOG, geog, type);
154  RET_GEOKEY(CONF, conf, type);
155 
156  return AVERROR_INVALIDDATA;
157 }
158 
159 static int cmp_id_key(const void *id, const void *k)
160 {
161  return *(const int*)id - ((const TiffGeoTagKeyName*)k)->key;
162 }
163 
164 static const char *search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
165 {
166  TiffGeoTagKeyName *r = bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key);
167  if(r)
168  return r->name;
169 
170  return NULL;
171 }
172 
173 static char *get_geokey_val(int key, int val)
174 {
175  char *ap;
176 
178  return av_strdup("undefined");
180  return av_strdup("User-Defined");
181 
182 #define RET_GEOKEY_VAL(TYPE, array)\
183  if (val >= TIFF_##TYPE##_OFFSET &&\
184  val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(tiff_##array##_codes))\
185  return av_strdup(tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET]);
186 
187  switch (key) {
189  RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
190  break;
192  RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
193  break;
197  RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
198  break;
201  RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
202  break;
204  RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
205  RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
206  break;
208  RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
209  RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
210  break;
212  RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
213  break;
215  RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
216  break;
219  if(ap) return ap;
220  break;
223  if(ap) return ap;
224  break;
226  RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
227  break;
229  RET_GEOKEY_VAL(VERT_CS, vert_cs);
230  RET_GEOKEY_VAL(ORTHO_VERT_CS, ortho_vert_cs);
231  break;
232 
233  }
234 
235  ap = av_malloc(14);
236  if (ap)
237  snprintf(ap, 14, "Unknown-%d", val);
238  return ap;
239 }
240 
241 static char *doubles2str(double *dp, int count, const char *sep)
242 {
243  int i;
244  char *ap, *ap0;
245  uint64_t component_len;
246  if (!sep) sep = ", ";
247  component_len = 24LL + strlen(sep);
248  if (count >= (INT_MAX - 1)/component_len)
249  return NULL;
250  ap = av_malloc(component_len * count + 1);
251  if (!ap)
252  return NULL;
253  ap0 = ap;
254  ap[0] = '\0';
255  for (i = 0; i < count; i++) {
256  unsigned l = snprintf(ap, component_len, "%.15g%s", dp[i], sep);
257  if(l >= component_len) {
258  av_free(ap0);
259  return NULL;
260  }
261  ap += l;
262  }
263  ap0[strlen(ap0) - strlen(sep)] = '\0';
264  return ap0;
265 }
266 
267 static int add_metadata(int count, int type,
268  const char *name, const char *sep, TiffContext *s, AVFrame *frame)
269 {
270  switch(type) {
271  case TIFF_DOUBLE: return ff_tadd_doubles_metadata(count, name, sep, &s->gb, s->le, &frame->metadata);
272  case TIFF_SHORT : return ff_tadd_shorts_metadata(count, name, sep, &s->gb, s->le, 0, &frame->metadata);
273  case TIFF_STRING: return ff_tadd_string_metadata(count, name, &s->gb, s->le, &frame->metadata);
274  default : return AVERROR_INVALIDDATA;
275  };
276 }
277 
278 /**
279  * Map stored raw sensor values into linear reference values (see: DNG Specification - Chapter 5)
280  */
281 static uint16_t av_always_inline dng_process_color16(uint16_t value,
282  const uint16_t *lut,
283  uint16_t black_level,
284  float scale_factor)
285 {
286  float value_norm;
287 
288  // Lookup table lookup
289  if (lut)
290  value = lut[value];
291 
292  // Black level subtraction
293  value = av_clip_uint16_c((unsigned)value - black_level);
294 
295  // Color scaling
296  value_norm = (float)value * scale_factor;
297 
298  value = av_clip_uint16_c(value_norm * 65535);
299 
300  return value;
301 }
302 
303 static uint16_t av_always_inline dng_process_color8(uint16_t value,
304  const uint16_t *lut,
305  uint16_t black_level,
306  float scale_factor)
307 {
308  return dng_process_color16(value, lut, black_level, scale_factor) >> 8;
309 }
310 
311 static void av_always_inline dng_blit(TiffContext *s, uint8_t *dst, int dst_stride,
312  const uint8_t *src, int src_stride, int width, int height,
313  int is_single_comp, int is_u16)
314 {
315  int line, col;
316  float scale_factor;
317 
318  scale_factor = 1.0f / (s->white_level - s->black_level);
319 
320  if (is_single_comp) {
321  if (!is_u16)
322  return; /* <= 8bpp unsupported */
323 
324  /* Image is double the width and half the height we need, each row comprises 2 rows of the output
325  (split vertically in the middle). */
326  for (line = 0; line < height / 2; line++) {
327  uint16_t *dst_u16 = (uint16_t *)dst;
328  uint16_t *src_u16 = (uint16_t *)src;
329 
330  /* Blit first half of input row row to initial row of output */
331  for (col = 0; col < width; col++)
332  *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level, scale_factor);
333 
334  /* Advance the destination pointer by a row (source pointer remains in the same place) */
335  dst += dst_stride * sizeof(uint16_t);
336  dst_u16 = (uint16_t *)dst;
337 
338  /* Blit second half of input row row to next row of output */
339  for (col = 0; col < width; col++)
340  *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level, scale_factor);
341 
342  dst += dst_stride * sizeof(uint16_t);
343  src += src_stride * sizeof(uint16_t);
344  }
345  } else {
346  /* Input and output image are the same size and the MJpeg decoder has done per-component
347  deinterleaving, so blitting here is straightforward. */
348  if (is_u16) {
349  for (line = 0; line < height; line++) {
350  uint16_t *dst_u16 = (uint16_t *)dst;
351  uint16_t *src_u16 = (uint16_t *)src;
352 
353  for (col = 0; col < width; col++)
354  *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level, scale_factor);
355 
356  dst += dst_stride * sizeof(uint16_t);
357  src += src_stride * sizeof(uint16_t);
358  }
359  } else {
360  for (line = 0; line < height; line++) {
361  uint8_t *dst_u8 = dst;
362  const uint8_t *src_u8 = src;
363 
364  for (col = 0; col < width; col++)
365  *dst_u8++ = dng_process_color8(*src_u8++, s->dng_lut, s->black_level, scale_factor);
366 
367  dst += dst_stride;
368  src += src_stride;
369  }
370  }
371  }
372 }
373 
375  unsigned int bpp, uint8_t* dst,
376  int usePtr, const uint8_t *src,
377  uint8_t c, int width, int offset)
378 {
379  switch (bpp) {
380  case 1:
381  while (--width >= 0) {
382  dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
383  dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
384  dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
385  dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
386  dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
387  dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
388  dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
389  dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
390  }
391  break;
392  case 2:
393  while (--width >= 0) {
394  dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
395  dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
396  dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
397  dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
398  }
399  break;
400  case 4:
401  while (--width >= 0) {
402  dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
403  dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
404  }
405  break;
406  case 10:
407  case 12:
408  case 14: {
409  uint16_t *dst16 = (uint16_t *)dst;
410  int is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
411  uint8_t shift = is_dng ? 0 : 16 - bpp;
412  GetBitContext gb;
413 
414  init_get_bits8(&gb, src, width);
415  for (int i = 0; i < s->width; i++) {
416  dst16[i] = get_bits(&gb, bpp) << shift;
417  }
418  }
419  break;
420  default:
421  if (usePtr) {
422  memcpy(dst + offset, src, width);
423  } else {
424  memset(dst + offset, c, width);
425  }
426  }
427 }
428 
429 static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
430 {
431  int i;
432 
433  av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
434  if (!s->deinvert_buf)
435  return AVERROR(ENOMEM);
436  for (i = 0; i < size; i++)
437  s->deinvert_buf[i] = ff_reverse[src[i]];
438 
439  return 0;
440 }
441 
442 static void unpack_gray(TiffContext *s, AVFrame *p,
443  const uint8_t *src, int lnum, int width, int bpp)
444 {
445  GetBitContext gb;
446  uint16_t *dst = (uint16_t *)(p->data[0] + lnum * p->linesize[0]);
447 
448  init_get_bits8(&gb, src, width);
449 
450  for (int i = 0; i < s->width; i++) {
451  dst[i] = get_bits(&gb, bpp);
452  }
453 }
454 
455 static void unpack_yuv(TiffContext *s, AVFrame *p,
456  const uint8_t *src, int lnum)
457 {
458  int i, j, k;
459  int w = (s->width - 1) / s->subsampling[0] + 1;
460  uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
461  uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
462  if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
463  for (i = 0; i < w; i++) {
464  for (j = 0; j < s->subsampling[1]; j++)
465  for (k = 0; k < s->subsampling[0]; k++)
466  p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
467  FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++;
468  *pu++ = *src++;
469  *pv++ = *src++;
470  }
471  }else{
472  for (i = 0; i < w; i++) {
473  for (j = 0; j < s->subsampling[1]; j++)
474  for (k = 0; k < s->subsampling[0]; k++)
475  p->data[0][(lnum + j) * p->linesize[0] +
476  i * s->subsampling[0] + k] = *src++;
477  *pu++ = *src++;
478  *pv++ = *src++;
479  }
480  }
481 }
482 
483 #if CONFIG_ZLIB
484 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
485  int size)
486 {
487  z_stream zstream = { 0 };
488  int zret;
489 
490  zstream.next_in = src;
491  zstream.avail_in = size;
492  zstream.next_out = dst;
493  zstream.avail_out = *len;
494  zret = inflateInit(&zstream);
495  if (zret != Z_OK) {
496  av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
497  return zret;
498  }
499  zret = inflate(&zstream, Z_SYNC_FLUSH);
500  inflateEnd(&zstream);
501  *len = zstream.total_out;
502  return zret == Z_STREAM_END ? Z_OK : zret;
503 }
504 
505 static int tiff_unpack_zlib(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
506  const uint8_t *src, int size, int width, int lines,
507  int strip_start, int is_yuv)
508 {
509  uint8_t *zbuf;
510  unsigned long outlen;
511  int ret, line;
512  outlen = width * lines;
513  zbuf = av_malloc(outlen);
514  if (!zbuf)
515  return AVERROR(ENOMEM);
516  if (s->fill_order) {
517  if ((ret = deinvert_buffer(s, src, size)) < 0) {
518  av_free(zbuf);
519  return ret;
520  }
521  src = s->deinvert_buf;
522  }
523  ret = tiff_uncompress(zbuf, &outlen, src, size);
524  if (ret != Z_OK) {
525  av_log(s->avctx, AV_LOG_ERROR,
526  "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
527  (unsigned long)width * lines, ret);
528  av_free(zbuf);
529  return AVERROR_UNKNOWN;
530  }
531  src = zbuf;
532  for (line = 0; line < lines; line++) {
533  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
534  horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
535  } else {
536  memcpy(dst, src, width);
537  }
538  if (is_yuv) {
539  unpack_yuv(s, p, dst, strip_start + line);
540  line += s->subsampling[1] - 1;
541  }
542  dst += stride;
543  src += width;
544  }
545  av_free(zbuf);
546  return 0;
547 }
548 #endif
549 
550 #if CONFIG_LZMA
551 static int tiff_uncompress_lzma(uint8_t *dst, uint64_t *len, const uint8_t *src,
552  int size)
553 {
554  lzma_stream stream = LZMA_STREAM_INIT;
555  lzma_ret ret;
556 
557  stream.next_in = (uint8_t *)src;
558  stream.avail_in = size;
559  stream.next_out = dst;
560  stream.avail_out = *len;
561  ret = lzma_stream_decoder(&stream, UINT64_MAX, 0);
562  if (ret != LZMA_OK) {
563  av_log(NULL, AV_LOG_ERROR, "LZMA init error: %d\n", ret);
564  return ret;
565  }
566  ret = lzma_code(&stream, LZMA_RUN);
567  lzma_end(&stream);
568  *len = stream.total_out;
569  return ret == LZMA_STREAM_END ? LZMA_OK : ret;
570 }
571 
572 static int tiff_unpack_lzma(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
573  const uint8_t *src, int size, int width, int lines,
574  int strip_start, int is_yuv)
575 {
576  uint64_t outlen = width * (uint64_t)lines;
577  int ret, line;
578  uint8_t *buf = av_malloc(outlen);
579  if (!buf)
580  return AVERROR(ENOMEM);
581  if (s->fill_order) {
582  if ((ret = deinvert_buffer(s, src, size)) < 0) {
583  av_free(buf);
584  return ret;
585  }
586  src = s->deinvert_buf;
587  }
588  ret = tiff_uncompress_lzma(buf, &outlen, src, size);
589  if (ret != LZMA_OK) {
590  av_log(s->avctx, AV_LOG_ERROR,
591  "Uncompressing failed (%"PRIu64" of %"PRIu64") with error %d\n", outlen,
592  (uint64_t)width * lines, ret);
593  av_free(buf);
594  return AVERROR_UNKNOWN;
595  }
596  src = buf;
597  for (line = 0; line < lines; line++) {
598  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
599  horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
600  } else {
601  memcpy(dst, src, width);
602  }
603  if (is_yuv) {
604  unpack_yuv(s, p, dst, strip_start + line);
605  line += s->subsampling[1] - 1;
606  }
607  dst += stride;
608  src += width;
609  }
610  av_free(buf);
611  return 0;
612 }
613 #endif
614 
615 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
616  const uint8_t *src, int size, int width, int lines)
617 {
618  int i, ret = 0;
619  int line;
620  uint8_t *src2;
621 
622  av_fast_padded_malloc(&s->fax_buffer, &s->fax_buffer_size, size);
623  src2 = s->fax_buffer;
624 
625  if (!src2) {
626  av_log(s->avctx, AV_LOG_ERROR,
627  "Error allocating temporary buffer\n");
628  return AVERROR(ENOMEM);
629  }
630 
631  if (!s->fill_order) {
632  memcpy(src2, src, size);
633  } else {
634  for (i = 0; i < size; i++)
635  src2[i] = ff_reverse[src[i]];
636  }
637  memset(src2 + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
638  ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
639  s->compr, s->fax_opts);
640  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
641  for (line = 0; line < lines; line++) {
642  horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
643  dst += stride;
644  }
645  return ret;
646 }
647 
649  int tile_byte_count, int dst_x, int dst_y, int w, int h)
650 {
651  TiffContext *s = avctx->priv_data;
652  uint8_t *dst_data, *src_data;
653  uint32_t dst_offset; /* offset from dst buffer in pixels */
654  int is_single_comp, is_u16, pixel_size;
655  int ret;
656 
657  if (tile_byte_count < 0 || tile_byte_count > bytestream2_get_bytes_left(&s->gb))
658  return AVERROR_INVALIDDATA;
659 
660  /* Prepare a packet and send to the MJPEG decoder */
661  av_packet_unref(s->jpkt);
662  s->jpkt->data = (uint8_t*)s->gb.buffer;
663  s->jpkt->size = tile_byte_count;
664 
665  if (s->is_bayer) {
666  MJpegDecodeContext *mjpegdecctx = s->avctx_mjpeg->priv_data;
667  /* We have to set this information here, there is no way to know if a given JPEG is a DNG-embedded
668  image or not from its own data (and we need that information when decoding it). */
669  mjpegdecctx->bayer = 1;
670  }
671 
672  ret = avcodec_send_packet(s->avctx_mjpeg, s->jpkt);
673  if (ret < 0) {
674  av_log(avctx, AV_LOG_ERROR, "Error submitting a packet for decoding\n");
675  return ret;
676  }
677 
678  ret = avcodec_receive_frame(s->avctx_mjpeg, s->jpgframe);
679  if (ret < 0) {
680  av_log(avctx, AV_LOG_ERROR, "JPEG decoding error: %s.\n", av_err2str(ret));
681 
682  /* Normally skip, error if explode */
683  if (avctx->err_recognition & AV_EF_EXPLODE)
684  return AVERROR_INVALIDDATA;
685  else
686  return 0;
687  }
688 
689  is_u16 = (s->bpp > 8);
690 
691  /* Copy the outputted tile's pixels from 'jpgframe' to 'frame' (final buffer) */
692 
693  if (s->jpgframe->width != s->avctx_mjpeg->width ||
694  s->jpgframe->height != s->avctx_mjpeg->height ||
695  s->jpgframe->format != s->avctx_mjpeg->pix_fmt)
696  return AVERROR_INVALIDDATA;
697 
698  /* See dng_blit for explanation */
699  if (s->avctx_mjpeg->width == w * 2 &&
700  s->avctx_mjpeg->height == h / 2 &&
701  s->avctx_mjpeg->pix_fmt == AV_PIX_FMT_GRAY16LE) {
702  is_single_comp = 1;
703  } else if (s->avctx_mjpeg->width >= w &&
704  s->avctx_mjpeg->height >= h &&
705  s->avctx_mjpeg->pix_fmt == (is_u16 ? AV_PIX_FMT_GRAY16 : AV_PIX_FMT_GRAY8)
706  ) {
707  is_single_comp = 0;
708  } else
709  return AVERROR_INVALIDDATA;
710 
711  pixel_size = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
712 
713  if (is_single_comp && !is_u16) {
714  av_log(s->avctx, AV_LOG_ERROR, "DNGs with bpp <= 8 and 1 component are unsupported\n");
715  av_frame_unref(s->jpgframe);
716  return AVERROR_PATCHWELCOME;
717  }
718 
719  dst_offset = dst_x + frame->linesize[0] * dst_y / pixel_size;
720  dst_data = frame->data[0] + dst_offset * pixel_size;
721  src_data = s->jpgframe->data[0];
722 
723  dng_blit(s,
724  dst_data,
725  frame->linesize[0] / pixel_size,
726  src_data,
727  s->jpgframe->linesize[0] / pixel_size,
728  w,
729  h,
730  is_single_comp,
731  is_u16);
732 
733  av_frame_unref(s->jpgframe);
734 
735  return 0;
736 }
737 
739 {
740  TiffContext *s = avctx->priv_data;
741 
742  s->jpgframe->width = s->width;
743  s->jpgframe->height = s->height;
744 
745  s->avctx_mjpeg->width = s->width;
746  s->avctx_mjpeg->height = s->height;
747 
748  return dng_decode_jpeg(avctx, frame, s->stripsize, 0, 0, s->width, s->height);
749 }
750 
752  const uint8_t *src, int size, int strip_start, int lines)
753 {
754  PutByteContext pb;
755  int c, line, pixels, code, ret;
756  const uint8_t *ssrc = src;
757  int width = ((s->width * s->bpp) + 7) >> 3;
759  int is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) &&
760  (desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
761  desc->nb_components >= 3;
762  int is_dng;
763 
764  if (s->planar)
765  width /= s->bppcount;
766 
767  if (size <= 0)
768  return AVERROR_INVALIDDATA;
769 
770  if (is_yuv) {
771  int bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
772  s->subsampling[0] * s->subsampling[1] + 7) >> 3;
773  av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row);
774  if (s->yuv_line == NULL) {
775  av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
776  return AVERROR(ENOMEM);
777  }
778  dst = s->yuv_line;
779  stride = 0;
780 
781  width = (s->width - 1) / s->subsampling[0] + 1;
782  width = width * s->subsampling[0] * s->subsampling[1] + 2*width;
783  av_assert0(width <= bytes_per_row);
784  av_assert0(s->bpp == 24);
785  }
786  if (s->is_bayer) {
787  av_assert0(width == (s->bpp * s->width + 7) >> 3);
788  }
789  if (p->format == AV_PIX_FMT_GRAY12) {
790  av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, width);
791  if (s->yuv_line == NULL) {
792  av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
793  return AVERROR(ENOMEM);
794  }
795  dst = s->yuv_line;
796  stride = 0;
797  }
798 
799  if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
800 #if CONFIG_ZLIB
801  return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines,
802  strip_start, is_yuv);
803 #else
804  av_log(s->avctx, AV_LOG_ERROR,
805  "zlib support not enabled, "
806  "deflate compression not supported\n");
807  return AVERROR(ENOSYS);
808 #endif
809  }
810  if (s->compr == TIFF_LZMA) {
811 #if CONFIG_LZMA
812  return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
813  strip_start, is_yuv);
814 #else
815  av_log(s->avctx, AV_LOG_ERROR,
816  "LZMA support not enabled\n");
817  return AVERROR(ENOSYS);
818 #endif
819  }
820  if (s->compr == TIFF_LZW) {
821  if (s->fill_order) {
822  if ((ret = deinvert_buffer(s, src, size)) < 0)
823  return ret;
824  ssrc = src = s->deinvert_buf;
825  }
826  if (size > 1 && !src[0] && (src[1]&1)) {
827  av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
828  }
829  if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
830  av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
831  return ret;
832  }
833  for (line = 0; line < lines; line++) {
834  pixels = ff_lzw_decode(s->lzw, dst, width);
835  if (pixels < width) {
836  av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
837  pixels, width);
838  return AVERROR_INVALIDDATA;
839  }
840  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
841  horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
842  if (is_yuv) {
843  unpack_yuv(s, p, dst, strip_start + line);
844  line += s->subsampling[1] - 1;
845  } else if (p->format == AV_PIX_FMT_GRAY12) {
846  unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
847  }
848  dst += stride;
849  }
850  return 0;
851  }
852  if (s->compr == TIFF_CCITT_RLE ||
853  s->compr == TIFF_G3 ||
854  s->compr == TIFF_G4) {
855  if (is_yuv || p->format == AV_PIX_FMT_GRAY12)
856  return AVERROR_INVALIDDATA;
857 
858  return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
859  }
860 
861  bytestream2_init(&s->gb, src, size);
862  bytestream2_init_writer(&pb, dst, is_yuv ? s->yuv_line_size : (stride * lines));
863 
864  is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
865 
866  /* Decode JPEG-encoded DNGs with strips */
867  if (s->compr == TIFF_NEWJPEG && is_dng) {
868  if (s->strips > 1) {
869  av_log(s->avctx, AV_LOG_ERROR, "More than one DNG JPEG strips unsupported\n");
870  return AVERROR_PATCHWELCOME;
871  }
872  if ((ret = dng_decode_strip(s->avctx, p)) < 0)
873  return ret;
874  return 0;
875  }
876 
877  if (is_dng && stride == 0)
878  return AVERROR_INVALIDDATA;
879 
880  for (line = 0; line < lines; line++) {
881  if (src - ssrc > size) {
882  av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
883  return AVERROR_INVALIDDATA;
884  }
885 
886  if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb))
887  break;
888  bytestream2_seek_p(&pb, stride * line, SEEK_SET);
889  switch (s->compr) {
890  case TIFF_RAW:
891  if (ssrc + size - src < width)
892  return AVERROR_INVALIDDATA;
893 
894  if (!s->fill_order) {
895  horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 || s->is_bayer),
896  dst, 1, src, 0, width, 0);
897  } else {
898  int i;
899  for (i = 0; i < width; i++)
900  dst[i] = ff_reverse[src[i]];
901  }
902 
903  /* Color processing for DNG images with uncompressed strips (non-tiled) */
904  if (is_dng) {
905  int is_u16, pixel_size_bytes, pixel_size_bits, elements;
906 
907  is_u16 = (s->bpp / s->bppcount > 8);
908  pixel_size_bits = (is_u16 ? 16 : 8);
909  pixel_size_bytes = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
910 
911  elements = width / pixel_size_bytes * pixel_size_bits / s->bpp * s->bppcount; // need to account for [1, 16] bpp
912  av_assert0 (elements * pixel_size_bytes <= FFABS(stride));
913  dng_blit(s,
914  dst,
915  0, // no stride, only 1 line
916  dst,
917  0, // no stride, only 1 line
918  elements,
919  1,
920  0, // single-component variation is only preset in JPEG-encoded DNGs
921  is_u16);
922  }
923 
924  src += width;
925  break;
926  case TIFF_PACKBITS:
927  for (pixels = 0; pixels < width;) {
928  if (ssrc + size - src < 2) {
929  av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
930  return AVERROR_INVALIDDATA;
931  }
932  code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
933  if (code >= 0) {
934  code++;
935  if (pixels + code > width ||
936  ssrc + size - src < code) {
937  av_log(s->avctx, AV_LOG_ERROR,
938  "Copy went out of bounds\n");
939  return AVERROR_INVALIDDATA;
940  }
941  horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
942  dst, 1, src, 0, code, pixels);
943  src += code;
944  pixels += code;
945  } else if (code != -128) { // -127..-1
946  code = (-code) + 1;
947  if (pixels + code > width) {
948  av_log(s->avctx, AV_LOG_ERROR,
949  "Run went out of bounds\n");
950  return AVERROR_INVALIDDATA;
951  }
952  c = *src++;
953  horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
954  dst, 0, NULL, c, code, pixels);
955  pixels += code;
956  }
957  }
958  if (s->fill_order) {
959  int i;
960  for (i = 0; i < width; i++)
961  dst[i] = ff_reverse[dst[i]];
962  }
963  break;
964  }
965  if (is_yuv) {
966  unpack_yuv(s, p, dst, strip_start + line);
967  line += s->subsampling[1] - 1;
968  } else if (p->format == AV_PIX_FMT_GRAY12) {
969  unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
970  }
971  dst += stride;
972  }
973  return 0;
974 }
975 
977  const AVPacket *avpkt)
978 {
979  TiffContext *s = avctx->priv_data;
980  int tile_idx;
981  int tile_offset_offset, tile_offset;
982  int tile_byte_count_offset, tile_byte_count;
983  int tile_count_x, tile_count_y;
984  int tile_width, tile_length;
985  int has_width_leftover, has_height_leftover;
986  int tile_x = 0, tile_y = 0;
987  int pos_x = 0, pos_y = 0;
988  int ret;
989 
990  s->jpgframe->width = s->tile_width;
991  s->jpgframe->height = s->tile_length;
992 
993  s->avctx_mjpeg->width = s->tile_width;
994  s->avctx_mjpeg->height = s->tile_length;
995 
996  has_width_leftover = (s->width % s->tile_width != 0);
997  has_height_leftover = (s->height % s->tile_length != 0);
998 
999  /* Calculate tile counts (round up) */
1000  tile_count_x = (s->width + s->tile_width - 1) / s->tile_width;
1001  tile_count_y = (s->height + s->tile_length - 1) / s->tile_length;
1002 
1003  /* Iterate over the number of tiles */
1004  for (tile_idx = 0; tile_idx < s->tile_count; tile_idx++) {
1005  tile_x = tile_idx % tile_count_x;
1006  tile_y = tile_idx / tile_count_x;
1007 
1008  if (has_width_leftover && tile_x == tile_count_x - 1) // If on the right-most tile
1009  tile_width = s->width % s->tile_width;
1010  else
1011  tile_width = s->tile_width;
1012 
1013  if (has_height_leftover && tile_y == tile_count_y - 1) // If on the bottom-most tile
1014  tile_length = s->height % s->tile_length;
1015  else
1016  tile_length = s->tile_length;
1017 
1018  /* Read tile offset */
1019  tile_offset_offset = s->tile_offsets_offset + tile_idx * sizeof(int);
1020  bytestream2_seek(&s->gb, tile_offset_offset, SEEK_SET);
1021  tile_offset = ff_tget_long(&s->gb, s->le);
1022 
1023  /* Read tile byte size */
1024  tile_byte_count_offset = s->tile_byte_counts_offset + tile_idx * sizeof(int);
1025  bytestream2_seek(&s->gb, tile_byte_count_offset, SEEK_SET);
1026  tile_byte_count = ff_tget_long(&s->gb, s->le);
1027 
1028  /* Seek to tile data */
1029  bytestream2_seek(&s->gb, tile_offset, SEEK_SET);
1030 
1031  /* Decode JPEG tile and copy it in the reference frame */
1032  ret = dng_decode_jpeg(avctx, frame, tile_byte_count, pos_x, pos_y, tile_width, tile_length);
1033 
1034  if (ret < 0)
1035  return ret;
1036 
1037  /* Advance current positions */
1038  pos_x += tile_width;
1039  if (tile_x == tile_count_x - 1) { // If on the right edge
1040  pos_x = 0;
1041  pos_y += tile_length;
1042  }
1043  }
1044 
1045  /* Frame is ready to be output */
1047  frame->key_frame = 1;
1048 
1049  return avpkt->size;
1050 }
1051 
1053 {
1054  int ret;
1055  int create_gray_palette = 0;
1056 
1057  // make sure there is no aliasing in the following switch
1058  if (s->bpp >= 100 || s->bppcount >= 10) {
1059  av_log(s->avctx, AV_LOG_ERROR,
1060  "Unsupported image parameters: bpp=%d, bppcount=%d\n",
1061  s->bpp, s->bppcount);
1062  return AVERROR_INVALIDDATA;
1063  }
1064 
1065  switch (s->planar * 1000 + s->bpp * 10 + s->bppcount + s->is_bayer * 10000) {
1066  case 11:
1067  if (!s->palette_is_set) {
1068  s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
1069  break;
1070  }
1071  case 21:
1072  case 41:
1073  s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
1074  if (!s->palette_is_set) {
1075  create_gray_palette = 1;
1076  }
1077  break;
1078  case 81:
1079  s->avctx->pix_fmt = s->palette_is_set ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_GRAY8;
1080  break;
1081  case 121:
1082  s->avctx->pix_fmt = AV_PIX_FMT_GRAY12;
1083  break;
1084  case 10081:
1085  switch (AV_RL32(s->pattern)) {
1086  case 0x02010100:
1087  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB8;
1088  break;
1089  case 0x00010102:
1090  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR8;
1091  break;
1092  case 0x01000201:
1093  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG8;
1094  break;
1095  case 0x01020001:
1096  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG8;
1097  break;
1098  default:
1099  av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1100  AV_RL32(s->pattern));
1101  return AVERROR_PATCHWELCOME;
1102  }
1103  break;
1104  case 10101:
1105  case 10121:
1106  case 10141:
1107  case 10161:
1108  switch (AV_RL32(s->pattern)) {
1109  case 0x02010100:
1110  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB16;
1111  break;
1112  case 0x00010102:
1113  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR16;
1114  break;
1115  case 0x01000201:
1116  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG16;
1117  break;
1118  case 0x01020001:
1119  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG16;
1120  break;
1121  default:
1122  av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1123  AV_RL32(s->pattern));
1124  return AVERROR_PATCHWELCOME;
1125  }
1126  break;
1127  case 243:
1128  if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1129  if (s->subsampling[0] == 1 && s->subsampling[1] == 1) {
1130  s->avctx->pix_fmt = AV_PIX_FMT_YUV444P;
1131  } else if (s->subsampling[0] == 2 && s->subsampling[1] == 1) {
1132  s->avctx->pix_fmt = AV_PIX_FMT_YUV422P;
1133  } else if (s->subsampling[0] == 4 && s->subsampling[1] == 1) {
1134  s->avctx->pix_fmt = AV_PIX_FMT_YUV411P;
1135  } else if (s->subsampling[0] == 1 && s->subsampling[1] == 2) {
1136  s->avctx->pix_fmt = AV_PIX_FMT_YUV440P;
1137  } else if (s->subsampling[0] == 2 && s->subsampling[1] == 2) {
1138  s->avctx->pix_fmt = AV_PIX_FMT_YUV420P;
1139  } else if (s->subsampling[0] == 4 && s->subsampling[1] == 4) {
1140  s->avctx->pix_fmt = AV_PIX_FMT_YUV410P;
1141  } else {
1142  av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr subsampling\n");
1143  return AVERROR_PATCHWELCOME;
1144  }
1145  } else
1146  s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
1147  break;
1148  case 161:
1149  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
1150  break;
1151  case 162:
1152  s->avctx->pix_fmt = AV_PIX_FMT_YA8;
1153  break;
1154  case 322:
1155  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_YA16LE : AV_PIX_FMT_YA16BE;
1156  break;
1157  case 324:
1158  s->avctx->pix_fmt = s->photometric == TIFF_PHOTOMETRIC_SEPARATED ? AV_PIX_FMT_RGB0 : AV_PIX_FMT_RGBA;
1159  break;
1160  case 405:
1161  if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED)
1162  s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
1163  else {
1164  av_log(s->avctx, AV_LOG_ERROR,
1165  "bpp=40 without PHOTOMETRIC_SEPARATED is unsupported\n");
1166  return AVERROR_PATCHWELCOME;
1167  }
1168  break;
1169  case 483:
1170  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
1171  break;
1172  case 644:
1173  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
1174  break;
1175  case 1243:
1176  s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
1177  break;
1178  case 1324:
1179  s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
1180  break;
1181  case 1483:
1182  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE;
1183  break;
1184  case 1644:
1185  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE;
1186  break;
1187  default:
1188  av_log(s->avctx, AV_LOG_ERROR,
1189  "This format is not supported (bpp=%d, bppcount=%d)\n",
1190  s->bpp, s->bppcount);
1191  return AVERROR_INVALIDDATA;
1192  }
1193 
1194  if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1195  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
1196  if((desc->flags & AV_PIX_FMT_FLAG_RGB) ||
1197  !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) ||
1198  desc->nb_components < 3) {
1199  av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr variant\n");
1200  return AVERROR_INVALIDDATA;
1201  }
1202  }
1203 
1204  if (s->width != s->avctx->width || s->height != s->avctx->height) {
1205  ret = ff_set_dimensions(s->avctx, s->width, s->height);
1206  if (ret < 0)
1207  return ret;
1208  }
1209  if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
1210  return ret;
1211  if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
1212  if (!create_gray_palette)
1213  memcpy(frame->f->data[1], s->palette, sizeof(s->palette));
1214  else {
1215  /* make default grayscale pal */
1216  int i;
1217  uint32_t *pal = (uint32_t *)frame->f->data[1];
1218  for (i = 0; i < 1<<s->bpp; i++)
1219  pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
1220  }
1221  }
1222  return 0;
1223 }
1224 
1225 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
1226 {
1227  int offset = tag == TIFF_YRES ? 2 : 0;
1228  s->res[offset++] = num;
1229  s->res[offset] = den;
1230  if (s->res[0] && s->res[1] && s->res[2] && s->res[3]) {
1231  uint64_t num = s->res[2] * (uint64_t)s->res[1];
1232  uint64_t den = s->res[0] * (uint64_t)s->res[3];
1233  if (num > INT64_MAX || den > INT64_MAX) {
1234  num = num >> 1;
1235  den = den >> 1;
1236  }
1237  av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den,
1238  num, den, INT32_MAX);
1239  if (!s->avctx->sample_aspect_ratio.den)
1240  s->avctx->sample_aspect_ratio = (AVRational) {0, 1};
1241  }
1242 }
1243 
1245 {
1246  AVFrameSideData *sd;
1247  GetByteContext gb_temp;
1248  unsigned tag, type, count, off, value = 0, value2 = 1; // value2 is a denominator so init. to 1
1249  int i, start;
1250  int pos;
1251  int ret;
1252  double *dp;
1253 
1254  ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
1255  if (ret < 0) {
1256  goto end;
1257  }
1258  if (tag <= s->last_tag)
1259  return AVERROR_INVALIDDATA;
1260 
1261  // We ignore TIFF_STRIP_SIZE as it is sometimes in the logic but wrong order around TIFF_STRIP_OFFS
1262  if (tag != TIFF_STRIP_SIZE)
1263  s->last_tag = tag;
1264 
1265  off = bytestream2_tell(&s->gb);
1266  if (count == 1) {
1267  switch (type) {
1268  case TIFF_BYTE:
1269  case TIFF_SHORT:
1270  case TIFF_LONG:
1271  value = ff_tget(&s->gb, type, s->le);
1272  break;
1273  case TIFF_RATIONAL:
1274  value = ff_tget(&s->gb, TIFF_LONG, s->le);
1275  value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
1276  if (!value2) {
1277  av_log(s->avctx, AV_LOG_ERROR, "Invalid denominator in rational\n");
1278  return AVERROR_INVALIDDATA;
1279  }
1280 
1281  break;
1282  case TIFF_STRING:
1283  if (count <= 4) {
1284  break;
1285  }
1286  default:
1287  value = UINT_MAX;
1288  }
1289  }
1290 
1291  switch (tag) {
1292  case TIFF_SUBFILE:
1293  s->is_thumbnail = (value != 0);
1294  break;
1295  case TIFF_WIDTH:
1296  s->width = value;
1297  break;
1298  case TIFF_HEIGHT:
1299  s->height = value;
1300  break;
1301  case TIFF_BPP:
1302  if (count > 5 || count <= 0) {
1303  av_log(s->avctx, AV_LOG_ERROR,
1304  "This format is not supported (bpp=%d, %d components)\n",
1305  value, count);
1306  return AVERROR_INVALIDDATA;
1307  }
1308  s->bppcount = count;
1309  if (count == 1)
1310  s->bpp = value;
1311  else {
1312  switch (type) {
1313  case TIFF_BYTE:
1314  case TIFF_SHORT:
1315  case TIFF_LONG:
1316  s->bpp = 0;
1317  if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
1318  return AVERROR_INVALIDDATA;
1319  for (i = 0; i < count; i++)
1320  s->bpp += ff_tget(&s->gb, type, s->le);
1321  break;
1322  default:
1323  s->bpp = -1;
1324  }
1325  }
1326  break;
1328  if (count != 1) {
1329  av_log(s->avctx, AV_LOG_ERROR,
1330  "Samples per pixel requires a single value, many provided\n");
1331  return AVERROR_INVALIDDATA;
1332  }
1333  if (value > 5 || value <= 0) {
1334  av_log(s->avctx, AV_LOG_ERROR,
1335  "Invalid samples per pixel %d\n", value);
1336  return AVERROR_INVALIDDATA;
1337  }
1338  if (s->bppcount == 1)
1339  s->bpp *= value;
1340  s->bppcount = value;
1341  break;
1342  case TIFF_COMPR:
1343  s->compr = value;
1344  av_log(s->avctx, AV_LOG_DEBUG, "compression: %d\n", s->compr);
1345  s->predictor = 0;
1346  switch (s->compr) {
1347  case TIFF_RAW:
1348  case TIFF_PACKBITS:
1349  case TIFF_LZW:
1350  case TIFF_CCITT_RLE:
1351  break;
1352  case TIFF_G3:
1353  case TIFF_G4:
1354  s->fax_opts = 0;
1355  break;
1356  case TIFF_DEFLATE:
1357  case TIFF_ADOBE_DEFLATE:
1358 #if CONFIG_ZLIB
1359  break;
1360 #else
1361  av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
1362  return AVERROR(ENOSYS);
1363 #endif
1364  case TIFF_JPEG:
1365  case TIFF_NEWJPEG:
1366  s->is_jpeg = 1;
1367  break;
1368  case TIFF_LZMA:
1369 #if CONFIG_LZMA
1370  break;
1371 #else
1372  av_log(s->avctx, AV_LOG_ERROR, "LZMA not compiled in\n");
1373  return AVERROR(ENOSYS);
1374 #endif
1375  default:
1376  av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
1377  s->compr);
1378  return AVERROR_INVALIDDATA;
1379  }
1380  break;
1381  case TIFF_ROWSPERSTRIP:
1382  if (!value || (type == TIFF_LONG && value == UINT_MAX))
1383  value = s->height;
1384  s->rps = FFMIN(value, s->height);
1385  break;
1386  case TIFF_STRIP_OFFS:
1387  if (count == 1) {
1388  if (value > INT_MAX) {
1389  av_log(s->avctx, AV_LOG_ERROR,
1390  "strippos %u too large\n", value);
1391  return AVERROR_INVALIDDATA;
1392  }
1393  s->strippos = 0;
1394  s->stripoff = value;
1395  } else
1396  s->strippos = off;
1397  s->strips = count;
1398  if (s->strips == 1)
1399  s->rps = s->height;
1400  s->sot = type;
1401  break;
1402  case TIFF_STRIP_SIZE:
1403  if (count == 1) {
1404  if (value > INT_MAX) {
1405  av_log(s->avctx, AV_LOG_ERROR,
1406  "stripsize %u too large\n", value);
1407  return AVERROR_INVALIDDATA;
1408  }
1409  s->stripsizesoff = 0;
1410  s->stripsize = value;
1411  s->strips = 1;
1412  } else {
1413  s->stripsizesoff = off;
1414  }
1415  s->strips = count;
1416  s->sstype = type;
1417  break;
1418  case TIFF_XRES:
1419  case TIFF_YRES:
1420  set_sar(s, tag, value, value2);
1421  break;
1422  case TIFF_TILE_OFFSETS:
1423  s->tile_offsets_offset = off;
1424  s->tile_count = count;
1425  s->is_tiled = 1;
1426  break;
1427  case TIFF_TILE_BYTE_COUNTS:
1428  s->tile_byte_counts_offset = off;
1429  break;
1430  case TIFF_TILE_LENGTH:
1431  s->tile_length = value;
1432  break;
1433  case TIFF_TILE_WIDTH:
1434  s->tile_width = value;
1435  break;
1436  case TIFF_PREDICTOR:
1437  s->predictor = value;
1438  break;
1439  case TIFF_SUB_IFDS:
1440  if (count == 1)
1441  s->sub_ifd = value;
1442  else if (count > 1)
1443  s->sub_ifd = ff_tget(&s->gb, TIFF_LONG, s->le); /** Only get the first SubIFD */
1444  break;
1446  if (count > FF_ARRAY_ELEMS(s->dng_lut))
1447  return AVERROR_INVALIDDATA;
1448  for (int i = 0; i < count; i++)
1449  s->dng_lut[i] = ff_tget(&s->gb, type, s->le);
1450  break;
1451  case DNG_BLACK_LEVEL:
1452  if (count > 1) { /* Use the first value in the pattern (assume they're all the same) */
1453  if (type == TIFF_RATIONAL) {
1454  value = ff_tget(&s->gb, TIFF_LONG, s->le);
1455  value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
1456  if (!value2) {
1457  av_log(s->avctx, AV_LOG_ERROR, "Invalid black level denominator\n");
1458  return AVERROR_INVALIDDATA;
1459  }
1460 
1461  s->black_level = value / value2;
1462  } else
1463  s->black_level = ff_tget(&s->gb, type, s->le);
1464  av_log(s->avctx, AV_LOG_WARNING, "Assuming black level pattern values are identical\n");
1465  } else {
1466  s->black_level = value / value2;
1467  }
1468  break;
1469  case DNG_WHITE_LEVEL:
1470  s->white_level = value;
1471  break;
1472  case TIFF_CFA_PATTERN_DIM:
1473  if (count != 2 || (ff_tget(&s->gb, type, s->le) != 2 &&
1474  ff_tget(&s->gb, type, s->le) != 2)) {
1475  av_log(s->avctx, AV_LOG_ERROR, "CFA Pattern dimensions are not 2x2\n");
1476  return AVERROR_INVALIDDATA;
1477  }
1478  break;
1479  case TIFF_CFA_PATTERN:
1480  s->is_bayer = 1;
1481  s->pattern[0] = ff_tget(&s->gb, type, s->le);
1482  s->pattern[1] = ff_tget(&s->gb, type, s->le);
1483  s->pattern[2] = ff_tget(&s->gb, type, s->le);
1484  s->pattern[3] = ff_tget(&s->gb, type, s->le);
1485  break;
1486  case TIFF_PHOTOMETRIC:
1487  switch (value) {
1490  case TIFF_PHOTOMETRIC_RGB:
1494  case TIFF_PHOTOMETRIC_CFA:
1495  case TIFF_PHOTOMETRIC_LINEAR_RAW: // Used by DNG images
1496  s->photometric = value;
1497  break;
1505  "PhotometricInterpretation 0x%04X",
1506  value);
1507  return AVERROR_PATCHWELCOME;
1508  default:
1509  av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
1510  "unknown\n", value);
1511  return AVERROR_INVALIDDATA;
1512  }
1513  break;
1514  case TIFF_FILL_ORDER:
1515  if (value < 1 || value > 2) {
1516  av_log(s->avctx, AV_LOG_ERROR,
1517  "Unknown FillOrder value %d, trying default one\n", value);
1518  value = 1;
1519  }
1520  s->fill_order = value - 1;
1521  break;
1522  case TIFF_PAL: {
1523  GetByteContext pal_gb[3];
1524  off = type_sizes[type];
1525  if (count / 3 > 256 ||
1526  bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
1527  return AVERROR_INVALIDDATA;
1528 
1529  pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
1530  bytestream2_skip(&pal_gb[1], count / 3 * off);
1531  bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
1532 
1533  off = (type_sizes[type] - 1) << 3;
1534  if (off > 31U) {
1535  av_log(s->avctx, AV_LOG_ERROR, "palette shift %d is out of range\n", off);
1536  return AVERROR_INVALIDDATA;
1537  }
1538 
1539  for (i = 0; i < count / 3; i++) {
1540  uint32_t p = 0xFF000000;
1541  p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
1542  p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
1543  p |= ff_tget(&pal_gb[2], type, s->le) >> off;
1544  s->palette[i] = p;
1545  }
1546  s->palette_is_set = 1;
1547  break;
1548  }
1549  case TIFF_PLANAR:
1550  s->planar = value == 2;
1551  break;
1553  if (count != 2) {
1554  av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n");
1555  return AVERROR_INVALIDDATA;
1556  }
1557  for (i = 0; i < count; i++) {
1558  s->subsampling[i] = ff_tget(&s->gb, type, s->le);
1559  if (s->subsampling[i] <= 0) {
1560  av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]);
1561  s->subsampling[i] = 1;
1562  return AVERROR_INVALIDDATA;
1563  }
1564  }
1565  break;
1566  case TIFF_T4OPTIONS:
1567  if (s->compr == TIFF_G3)
1568  s->fax_opts = value;
1569  break;
1570  case TIFF_T6OPTIONS:
1571  if (s->compr == TIFF_G4)
1572  s->fax_opts = value;
1573  break;
1574 #define ADD_METADATA(count, name, sep)\
1575  if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
1576  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
1577  goto end;\
1578  }
1580  ADD_METADATA(count, "ModelPixelScaleTag", NULL);
1581  break;
1583  ADD_METADATA(count, "ModelTransformationTag", NULL);
1584  break;
1585  case TIFF_MODEL_TIEPOINT:
1586  ADD_METADATA(count, "ModelTiepointTag", NULL);
1587  break;
1589  if (s->geotag_count) {
1590  avpriv_request_sample(s->avctx, "Multiple geo key directories");
1591  return AVERROR_INVALIDDATA;
1592  }
1593  ADD_METADATA(1, "GeoTIFF_Version", NULL);
1594  ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
1595  s->geotag_count = ff_tget_short(&s->gb, s->le);
1596  if (s->geotag_count > count / 4 - 1) {
1597  s->geotag_count = count / 4 - 1;
1598  av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
1599  }
1600  if ( bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4
1601  || s->geotag_count == 0) {
1602  s->geotag_count = 0;
1603  return -1;
1604  }
1605  s->geotags = av_mallocz_array(s->geotag_count, sizeof(TiffGeoTag));
1606  if (!s->geotags) {
1607  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1608  s->geotag_count = 0;
1609  goto end;
1610  }
1611  for (i = 0; i < s->geotag_count; i++) {
1612  s->geotags[i].key = ff_tget_short(&s->gb, s->le);
1613  s->geotags[i].type = ff_tget_short(&s->gb, s->le);
1614  s->geotags[i].count = ff_tget_short(&s->gb, s->le);
1615 
1616  if (!s->geotags[i].type)
1617  s->geotags[i].val = get_geokey_val(s->geotags[i].key, ff_tget_short(&s->gb, s->le));
1618  else
1619  s->geotags[i].offset = ff_tget_short(&s->gb, s->le);
1620  }
1621  break;
1623  if (count >= INT_MAX / sizeof(int64_t))
1624  return AVERROR_INVALIDDATA;
1625  if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
1626  return AVERROR_INVALIDDATA;
1627  dp = av_malloc_array(count, sizeof(double));
1628  if (!dp) {
1629  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1630  goto end;
1631  }
1632  for (i = 0; i < count; i++)
1633  dp[i] = ff_tget_double(&s->gb, s->le);
1634  for (i = 0; i < s->geotag_count; i++) {
1635  if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
1636  if (s->geotags[i].count == 0
1637  || s->geotags[i].offset + s->geotags[i].count > count) {
1638  av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1639  } else if (s->geotags[i].val) {
1640  av_log(s->avctx, AV_LOG_WARNING, "Duplicate GeoTIFF key %d\n", s->geotags[i].key);
1641  } else {
1642  char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
1643  if (!ap) {
1644  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1645  av_freep(&dp);
1646  return AVERROR(ENOMEM);
1647  }
1648  s->geotags[i].val = ap;
1649  }
1650  }
1651  }
1652  av_freep(&dp);
1653  break;
1654  case TIFF_GEO_ASCII_PARAMS:
1655  pos = bytestream2_tell(&s->gb);
1656  for (i = 0; i < s->geotag_count; i++) {
1657  if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
1658  if (s->geotags[i].count == 0
1659  || s->geotags[i].offset + s->geotags[i].count > count) {
1660  av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1661  } else {
1662  char *ap;
1663 
1664  bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
1665  if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
1666  return AVERROR_INVALIDDATA;
1667  if (s->geotags[i].val)
1668  return AVERROR_INVALIDDATA;
1669  ap = av_malloc(s->geotags[i].count);
1670  if (!ap) {
1671  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1672  return AVERROR(ENOMEM);
1673  }
1674  bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
1675  ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
1676  s->geotags[i].val = ap;
1677  }
1678  }
1679  }
1680  break;
1681  case TIFF_ICC_PROFILE:
1682  gb_temp = s->gb;
1683  bytestream2_seek(&gb_temp, SEEK_SET, off);
1684 
1685  if (bytestream2_get_bytes_left(&gb_temp) < count)
1686  return AVERROR_INVALIDDATA;
1687 
1689  if (!sd)
1690  return AVERROR(ENOMEM);
1691 
1692  bytestream2_get_bufferu(&gb_temp, sd->data, count);
1693  break;
1694  case TIFF_ARTIST:
1695  ADD_METADATA(count, "artist", NULL);
1696  break;
1697  case TIFF_COPYRIGHT:
1698  ADD_METADATA(count, "copyright", NULL);
1699  break;
1700  case TIFF_DATE:
1701  ADD_METADATA(count, "date", NULL);
1702  break;
1703  case TIFF_DOCUMENT_NAME:
1704  ADD_METADATA(count, "document_name", NULL);
1705  break;
1706  case TIFF_HOST_COMPUTER:
1707  ADD_METADATA(count, "computer", NULL);
1708  break;
1710  ADD_METADATA(count, "description", NULL);
1711  break;
1712  case TIFF_MAKE:
1713  ADD_METADATA(count, "make", NULL);
1714  break;
1715  case TIFF_MODEL:
1716  ADD_METADATA(count, "model", NULL);
1717  break;
1718  case TIFF_PAGE_NAME:
1719  ADD_METADATA(count, "page_name", NULL);
1720  break;
1721  case TIFF_PAGE_NUMBER:
1722  ADD_METADATA(count, "page_number", " / ");
1723  // need to seek back to re-read the page number
1724  bytestream2_seek(&s->gb, -count * sizeof(uint16_t), SEEK_CUR);
1725  // read the page number
1726  s->cur_page = ff_tget(&s->gb, TIFF_SHORT, s->le);
1727  // get back to where we were before the previous seek
1728  bytestream2_seek(&s->gb, count * sizeof(uint16_t) - sizeof(uint16_t), SEEK_CUR);
1729  break;
1730  case TIFF_SOFTWARE_NAME:
1731  ADD_METADATA(count, "software", NULL);
1732  break;
1733  case DNG_VERSION:
1734  if (count == 4) {
1735  unsigned int ver[4];
1736  ver[0] = ff_tget(&s->gb, type, s->le);
1737  ver[1] = ff_tget(&s->gb, type, s->le);
1738  ver[2] = ff_tget(&s->gb, type, s->le);
1739  ver[3] = ff_tget(&s->gb, type, s->le);
1740 
1741  av_log(s->avctx, AV_LOG_DEBUG, "DNG file, version %u.%u.%u.%u\n",
1742  ver[0], ver[1], ver[2], ver[3]);
1743 
1745  }
1746  break;
1747  case CINEMADNG_TIME_CODES:
1748  case CINEMADNG_FRAME_RATE:
1749  case CINEMADNG_T_STOP:
1750  case CINEMADNG_REEL_NAME:
1753  break;
1754  default:
1755  if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1756  av_log(s->avctx, AV_LOG_ERROR,
1757  "Unknown or unsupported tag %d/0x%0X\n",
1758  tag, tag);
1759  return AVERROR_INVALIDDATA;
1760  }
1761  }
1762 end:
1763  if (s->bpp > 64U) {
1764  av_log(s->avctx, AV_LOG_ERROR,
1765  "This format is not supported (bpp=%d, %d components)\n",
1766  s->bpp, count);
1767  s->bpp = 0;
1768  return AVERROR_INVALIDDATA;
1769  }
1770  bytestream2_seek(&s->gb, start, SEEK_SET);
1771  return 0;
1772 }
1773 
1774 static int decode_frame(AVCodecContext *avctx,
1775  void *data, int *got_frame, AVPacket *avpkt)
1776 {
1777  TiffContext *const s = avctx->priv_data;
1778  AVFrame *const p = data;
1779  ThreadFrame frame = { .f = data };
1780  unsigned off, last_off;
1781  int le, ret, plane, planes;
1782  int i, j, entries, stride;
1783  unsigned soff, ssize;
1784  uint8_t *dst;
1785  GetByteContext stripsizes;
1786  GetByteContext stripdata;
1787  int retry_for_subifd, retry_for_page;
1788  int is_dng;
1789  int has_tile_bits, has_strip_bits;
1790 
1791  bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1792 
1793  // parse image header
1794  if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
1795  av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
1796  return ret;
1797  } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1798  av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1799  return AVERROR_INVALIDDATA;
1800  }
1801  s->le = le;
1802  // TIFF_BPP is not a required tag and defaults to 1
1803 
1804  s->tiff_type = TIFF_TYPE_TIFF;
1805 again:
1806  s->is_thumbnail = 0;
1807  s->bppcount = s->bpp = 1;
1808  s->photometric = TIFF_PHOTOMETRIC_NONE;
1809  s->compr = TIFF_RAW;
1810  s->fill_order = 0;
1811  s->white_level = 0;
1812  s->is_bayer = 0;
1813  s->is_tiled = 0;
1814  s->is_jpeg = 0;
1815  s->cur_page = 0;
1816  s->last_tag = 0;
1817 
1818  for (i = 0; i < 65536; i++)
1819  s->dng_lut[i] = i;
1820 
1821  free_geotags(s);
1822 
1823  // Reset these offsets so we can tell if they were set this frame
1824  s->stripsizesoff = s->strippos = 0;
1825  /* parse image file directory */
1826  bytestream2_seek(&s->gb, off, SEEK_SET);
1827  entries = ff_tget_short(&s->gb, le);
1828  if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1829  return AVERROR_INVALIDDATA;
1830  for (i = 0; i < entries; i++) {
1831  if ((ret = tiff_decode_tag(s, p)) < 0)
1832  return ret;
1833  }
1834 
1835  if (s->get_thumbnail && !s->is_thumbnail) {
1836  av_log(avctx, AV_LOG_INFO, "No embedded thumbnail present\n");
1837  return AVERROR_EOF;
1838  }
1839 
1840  /** whether we should process this IFD's SubIFD */
1841  retry_for_subifd = s->sub_ifd && (s->get_subimage || (!s->get_thumbnail && s->is_thumbnail));
1842  /** whether we should process this multi-page IFD's next page */
1843  retry_for_page = s->get_page && s->cur_page + 1 < s->get_page; // get_page is 1-indexed
1844 
1845  last_off = off;
1846  if (retry_for_page) {
1847  // set offset to the next IFD
1848  off = ff_tget_long(&s->gb, le);
1849  } else if (retry_for_subifd) {
1850  // set offset to the SubIFD
1851  off = s->sub_ifd;
1852  }
1853 
1854  if (retry_for_subifd || retry_for_page) {
1855  if (!off) {
1856  av_log(avctx, AV_LOG_ERROR, "Requested entry not found\n");
1857  return AVERROR_INVALIDDATA;
1858  }
1859  if (off <= last_off) {
1860  avpriv_request_sample(s->avctx, "non increasing IFD offset");
1861  return AVERROR_INVALIDDATA;
1862  }
1863  if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1864  av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1865  return AVERROR_INVALIDDATA;
1866  }
1867  s->sub_ifd = 0;
1868  goto again;
1869  }
1870 
1871  /* At this point we've decided on which (Sub)IFD to process */
1872 
1873  is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
1874 
1875  for (i = 0; i<s->geotag_count; i++) {
1876  const char *keyname = get_geokey_name(s->geotags[i].key);
1877  if (!keyname) {
1878  av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
1879  continue;
1880  }
1881  if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
1882  av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
1883  continue;
1884  }
1885  ret = av_dict_set(&p->metadata, keyname, s->geotags[i].val, 0);
1886  if (ret<0) {
1887  av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
1888  return ret;
1889  }
1890  }
1891 
1892  if (is_dng) {
1893  int bps;
1894 
1895  if (s->bpp % s->bppcount)
1896  return AVERROR_INVALIDDATA;
1897  bps = s->bpp / s->bppcount;
1898  if (bps < 8 || bps > 32)
1899  return AVERROR_INVALIDDATA;
1900 
1901  if (s->white_level == 0)
1902  s->white_level = (1LL << bps) - 1; /* Default value as per the spec */
1903 
1904  if (s->white_level <= s->black_level) {
1905  av_log(avctx, AV_LOG_ERROR, "BlackLevel (%"PRId32") must be less than WhiteLevel (%"PRId32")\n",
1906  s->black_level, s->white_level);
1907  return AVERROR_INVALIDDATA;
1908  }
1909 
1910  if (s->planar)
1911  return AVERROR_PATCHWELCOME;
1912  }
1913 
1914  if (!s->is_tiled && !s->strippos && !s->stripoff) {
1915  av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
1916  return AVERROR_INVALIDDATA;
1917  }
1918 
1919  has_tile_bits = s->is_tiled || s->tile_byte_counts_offset || s->tile_offsets_offset || s->tile_width || s->tile_length || s->tile_count;
1920  has_strip_bits = s->strippos || s->strips || s->stripoff || s->rps || s->sot || s->sstype || s->stripsize || s->stripsizesoff;
1921 
1922  if (has_tile_bits && has_strip_bits) {
1923  int tiled_dng = s->is_tiled && is_dng;
1924  av_log(avctx, tiled_dng ? AV_LOG_WARNING : AV_LOG_ERROR, "Tiled TIFF is not allowed to strip\n");
1925  if (!tiled_dng)
1926  return AVERROR_INVALIDDATA;
1927  }
1928 
1929  /* now we have the data and may start decoding */
1930  if ((ret = init_image(s, &frame)) < 0)
1931  return ret;
1932 
1933  if (!s->is_tiled || has_strip_bits) {
1934  if (s->strips == 1 && !s->stripsize) {
1935  av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
1936  s->stripsize = avpkt->size - s->stripoff;
1937  }
1938 
1939  if (s->stripsizesoff) {
1940  if (s->stripsizesoff >= (unsigned)avpkt->size)
1941  return AVERROR_INVALIDDATA;
1942  bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
1943  avpkt->size - s->stripsizesoff);
1944  }
1945  if (s->strippos) {
1946  if (s->strippos >= (unsigned)avpkt->size)
1947  return AVERROR_INVALIDDATA;
1948  bytestream2_init(&stripdata, avpkt->data + s->strippos,
1949  avpkt->size - s->strippos);
1950  }
1951 
1952  if (s->rps <= 0 || s->rps % s->subsampling[1]) {
1953  av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1954  return AVERROR_INVALIDDATA;
1955  }
1956  }
1957 
1958  if (s->photometric == TIFF_PHOTOMETRIC_LINEAR_RAW ||
1959  s->photometric == TIFF_PHOTOMETRIC_CFA) {
1961  } else if (s->photometric == TIFF_PHOTOMETRIC_BLACK_IS_ZERO) {
1963  }
1964 
1965  /* Handle DNG images with JPEG-compressed tiles */
1966 
1967  if (is_dng && s->is_tiled) {
1968  if (!s->is_jpeg) {
1969  avpriv_report_missing_feature(avctx, "DNG uncompressed tiled images");
1970  return AVERROR_PATCHWELCOME;
1971  } else if (!s->is_bayer) {
1972  avpriv_report_missing_feature(avctx, "DNG JPG-compressed tiled non-bayer-encoded images");
1973  return AVERROR_PATCHWELCOME;
1974  } else {
1975  if ((ret = dng_decode_tiles(avctx, (AVFrame*)data, avpkt)) > 0)
1976  *got_frame = 1;
1977  return ret;
1978  }
1979  }
1980 
1981  /* Handle TIFF images and DNG images with uncompressed strips (non-tiled) */
1982 
1983  planes = s->planar ? s->bppcount : 1;
1984  for (plane = 0; plane < planes; plane++) {
1985  uint8_t *five_planes = NULL;
1986  int remaining = avpkt->size;
1987  int decoded_height;
1988  stride = p->linesize[plane];
1989  dst = p->data[plane];
1990  if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
1991  s->avctx->pix_fmt == AV_PIX_FMT_RGBA) {
1992  stride = stride * 5 / 4;
1993  five_planes =
1994  dst = av_malloc(stride * s->height);
1995  if (!dst)
1996  return AVERROR(ENOMEM);
1997  }
1998  for (i = 0; i < s->height; i += s->rps) {
1999  if (i)
2000  dst += s->rps * stride;
2001  if (s->stripsizesoff)
2002  ssize = ff_tget(&stripsizes, s->sstype, le);
2003  else
2004  ssize = s->stripsize;
2005 
2006  if (s->strippos)
2007  soff = ff_tget(&stripdata, s->sot, le);
2008  else
2009  soff = s->stripoff;
2010 
2011  if (soff > avpkt->size || ssize > avpkt->size - soff || ssize > remaining) {
2012  av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
2013  av_freep(&five_planes);
2014  return AVERROR_INVALIDDATA;
2015  }
2016  remaining -= ssize;
2017  if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i,
2018  FFMIN(s->rps, s->height - i))) < 0) {
2019  if (avctx->err_recognition & AV_EF_EXPLODE) {
2020  av_freep(&five_planes);
2021  return ret;
2022  }
2023  break;
2024  }
2025  }
2026  decoded_height = FFMIN(i, s->height);
2027 
2028  if (s->predictor == 2) {
2029  if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
2030  av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported");
2031  return AVERROR_PATCHWELCOME;
2032  }
2033  dst = five_planes ? five_planes : p->data[plane];
2034  soff = s->bpp >> 3;
2035  if (s->planar)
2036  soff = FFMAX(soff / s->bppcount, 1);
2037  ssize = s->width * soff;
2038  if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
2039  s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
2040  s->avctx->pix_fmt == AV_PIX_FMT_GRAY16LE ||
2041  s->avctx->pix_fmt == AV_PIX_FMT_YA16LE ||
2042  s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
2043  s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
2044  for (i = 0; i < decoded_height; i++) {
2045  for (j = soff; j < ssize; j += 2)
2046  AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
2047  dst += stride;
2048  }
2049  } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
2050  s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
2051  s->avctx->pix_fmt == AV_PIX_FMT_GRAY16BE ||
2052  s->avctx->pix_fmt == AV_PIX_FMT_YA16BE ||
2053  s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
2054  s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
2055  for (i = 0; i < decoded_height; i++) {
2056  for (j = soff; j < ssize; j += 2)
2057  AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
2058  dst += stride;
2059  }
2060  } else {
2061  for (i = 0; i < decoded_height; i++) {
2062  for (j = soff; j < ssize; j++)
2063  dst[j] += dst[j - soff];
2064  dst += stride;
2065  }
2066  }
2067  }
2068 
2069  if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) {
2070  int c = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255);
2071  dst = p->data[plane];
2072  for (i = 0; i < s->height; i++) {
2073  for (j = 0; j < stride; j++)
2074  dst[j] = c - dst[j];
2075  dst += stride;
2076  }
2077  }
2078 
2079  if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2080  (s->avctx->pix_fmt == AV_PIX_FMT_RGB0 || s->avctx->pix_fmt == AV_PIX_FMT_RGBA)) {
2081  int x = s->avctx->pix_fmt == AV_PIX_FMT_RGB0 ? 4 : 5;
2082  uint8_t *src = five_planes ? five_planes : p->data[plane];
2083  dst = p->data[plane];
2084  for (i = 0; i < s->height; i++) {
2085  for (j = 0; j < s->width; j++) {
2086  int k = 255 - src[x * j + 3];
2087  int r = (255 - src[x * j ]) * k;
2088  int g = (255 - src[x * j + 1]) * k;
2089  int b = (255 - src[x * j + 2]) * k;
2090  dst[4 * j ] = r * 257 >> 16;
2091  dst[4 * j + 1] = g * 257 >> 16;
2092  dst[4 * j + 2] = b * 257 >> 16;
2093  dst[4 * j + 3] = s->avctx->pix_fmt == AV_PIX_FMT_RGBA ? src[x * j + 4] : 255;
2094  }
2095  src += stride;
2096  dst += p->linesize[plane];
2097  }
2098  av_freep(&five_planes);
2099  } else if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2100  s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) {
2101  dst = p->data[plane];
2102  for (i = 0; i < s->height; i++) {
2103  for (j = 0; j < s->width; j++) {
2104  uint64_t k = 65535 - AV_RB16(dst + 8 * j + 6);
2105  uint64_t r = (65535 - AV_RB16(dst + 8 * j )) * k;
2106  uint64_t g = (65535 - AV_RB16(dst + 8 * j + 2)) * k;
2107  uint64_t b = (65535 - AV_RB16(dst + 8 * j + 4)) * k;
2108  AV_WB16(dst + 8 * j , r * 65537 >> 32);
2109  AV_WB16(dst + 8 * j + 2, g * 65537 >> 32);
2110  AV_WB16(dst + 8 * j + 4, b * 65537 >> 32);
2111  AV_WB16(dst + 8 * j + 6, 65535);
2112  }
2113  dst += p->linesize[plane];
2114  }
2115  }
2116  }
2117 
2118  if (s->planar && s->bppcount > 2) {
2119  FFSWAP(uint8_t*, p->data[0], p->data[2]);
2120  FFSWAP(int, p->linesize[0], p->linesize[2]);
2121  FFSWAP(uint8_t*, p->data[0], p->data[1]);
2122  FFSWAP(int, p->linesize[0], p->linesize[1]);
2123  }
2124 
2125  if (s->is_bayer && s->white_level && s->bpp == 16 && !is_dng) {
2126  uint16_t *dst = (uint16_t *)p->data[0];
2127  for (i = 0; i < s->height; i++) {
2128  for (j = 0; j < s->width; j++)
2129  dst[j] = FFMIN((dst[j] / (float)s->white_level) * 65535, 65535);
2130  dst += stride / 2;
2131  }
2132  }
2133 
2134  *got_frame = 1;
2135 
2136  return avpkt->size;
2137 }
2138 
2140 {
2141  TiffContext *s = avctx->priv_data;
2142  const AVCodec *codec;
2143  int ret;
2144 
2145  s->width = 0;
2146  s->height = 0;
2147  s->subsampling[0] =
2148  s->subsampling[1] = 1;
2149  s->avctx = avctx;
2150  ff_lzw_decode_open(&s->lzw);
2151  if (!s->lzw)
2152  return AVERROR(ENOMEM);
2154 
2155  /* Allocate JPEG frame */
2156  s->jpgframe = av_frame_alloc();
2157  s->jpkt = av_packet_alloc();
2158  if (!s->jpgframe || !s->jpkt)
2159  return AVERROR(ENOMEM);
2160 
2161  /* Prepare everything needed for JPEG decoding */
2163  if (!codec)
2164  return AVERROR_BUG;
2165  s->avctx_mjpeg = avcodec_alloc_context3(codec);
2166  if (!s->avctx_mjpeg)
2167  return AVERROR(ENOMEM);
2168  s->avctx_mjpeg->flags = avctx->flags;
2169  s->avctx_mjpeg->flags2 = avctx->flags2;
2170  s->avctx_mjpeg->dct_algo = avctx->dct_algo;
2171  s->avctx_mjpeg->idct_algo = avctx->idct_algo;
2172  ret = avcodec_open2(s->avctx_mjpeg, codec, NULL);
2173  if (ret < 0) {
2174  return ret;
2175  }
2176 
2177  return 0;
2178 }
2179 
2180 static av_cold int tiff_end(AVCodecContext *avctx)
2181 {
2182  TiffContext *const s = avctx->priv_data;
2183 
2184  free_geotags(s);
2185 
2186  ff_lzw_decode_close(&s->lzw);
2187  av_freep(&s->deinvert_buf);
2188  s->deinvert_buf_size = 0;
2189  av_freep(&s->yuv_line);
2190  s->yuv_line_size = 0;
2191  av_freep(&s->fax_buffer);
2192  s->fax_buffer_size = 0;
2193  av_frame_free(&s->jpgframe);
2194  av_packet_free(&s->jpkt);
2195  avcodec_free_context(&s->avctx_mjpeg);
2196  return 0;
2197 }
2198 
2199 #define OFFSET(x) offsetof(TiffContext, x)
2200 static const AVOption tiff_options[] = {
2201  { "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 },
2202  { "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 },
2203  { "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 },
2204  { NULL },
2205 };
2206 
2207 static const AVClass tiff_decoder_class = {
2208  .class_name = "TIFF decoder",
2209  .item_name = av_default_item_name,
2210  .option = tiff_options,
2211  .version = LIBAVUTIL_VERSION_INT,
2212 };
2213 
2215  .name = "tiff",
2216  .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
2217  .type = AVMEDIA_TYPE_VIDEO,
2218  .id = AV_CODEC_ID_TIFF,
2219  .priv_data_size = sizeof(TiffContext),
2220  .init = tiff_init,
2221  .close = tiff_end,
2222  .decode = decode_frame,
2223  .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
2225  .priv_class = &tiff_decoder_class,
2226 };
static double val(void *priv, double ch)
Definition: aeval.c:76
Macro definitions for various function/variable attributes.
#define av_always_inline
Definition: attributes.h:45
#define av_cold
Definition: attributes.h:88
uint8_t
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
Libavcodec external API header.
#define AV_EF_EXPLODE
abort decoding on minor error detection
Definition: avcodec.h:1656
#define AV_RL16
Definition: intreadwrite.h:42
#define AV_RB16
Definition: intreadwrite.h:53
#define AV_RL32
Definition: intreadwrite.h:146
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:31
static av_always_inline void bytestream2_init_writer(PutByteContext *p, uint8_t *buf, int buf_size)
Definition: bytestream.h:147
static av_always_inline unsigned int bytestream2_get_bufferu(GetByteContext *g, uint8_t *dst, unsigned int size)
Definition: bytestream.h:277
static av_always_inline int bytestream2_get_bytes_left(GetByteContext *g)
Definition: bytestream.h:158
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
Definition: bytestream.h:137
static av_always_inline void bytestream2_skip(GetByteContext *g, unsigned int size)
Definition: bytestream.h:168
static av_always_inline int bytestream2_seek(GetByteContext *g, int offset, int whence)
Definition: bytestream.h:212
static av_always_inline int bytestream2_seek_p(PutByteContext *p, int offset, int whence)
Definition: bytestream.h:236
static av_always_inline int bytestream2_tell(GetByteContext *g)
Definition: bytestream.h:192
static av_always_inline unsigned int bytestream2_get_eof(PutByteContext *p)
Definition: bytestream.h:332
#define s(width, name)
Definition: cbs_vp9.c:257
#define FFSWAP(type, a, b)
Definition: common.h:108
#define FFMIN(a, b)
Definition: common.h:105
static av_always_inline av_const uint16_t av_clip_uint16_c(int a)
Clip a signed integer value into the 0-65535 range.
Definition: common.h:254
#define FFMAX(a, b)
Definition: common.h:103
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
#define NULL
Definition: coverity.c:32
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:71
static AVFrame * frame
error code definitions
double value
Definition: eval.c:98
av_cold void ff_ccitt_unpack_init(void)
initialize unpacker code
Definition: faxcompr.c:122
int ff_ccitt_unpack(AVCodecContext *avctx, const uint8_t *src, int srcsize, uint8_t *dst, int height, int stride, enum TiffCompr compr, int opts)
unpack data compressed with CCITT Group 3 1/2-D or Group 4 method
Definition: faxcompr.c:384
CCITT Fax Group 3 and 4 decompression.
int
bitstream reader API header.
static int init_get_bits8(GetBitContext *s, const uint8_t *buffer, int byte_size)
Initialize GetBitContext.
Definition: get_bits.h:677
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:379
@ AV_OPT_TYPE_INT
Definition: opt.h:225
@ AV_OPT_TYPE_BOOL
Definition: opt.h:242
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: avcodec.c:144
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:946
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:52
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: codec.h:108
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
Definition: options.c:173
void avcodec_free_context(AVCodecContext **avctx)
Free the codec context and everything associated with it and write NULL to the provided pointer.
Definition: options.c:188
@ AV_CODEC_ID_TIFF
Definition: codec_id.h:145
@ AV_CODEC_ID_MJPEG
Definition: codec_id.h:56
int avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
Return decoded output data from a decoder.
Definition: decode.c:643
int avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
Supply raw packet data as input to a decoder.
Definition: decode.c:580
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding.
Definition: avcodec.h:215
void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_malloc but the buffer has additional AV_INPUT_BUFFER_PADDING_SIZE at the end w...
Definition: utils.c:50
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:75
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:634
AVPacket * av_packet_alloc(void)
Allocate an AVPacket and set its fields to default values.
Definition: avpacket.c:64
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition: dict.c:70
#define AVERROR_UNKNOWN
Unknown error, typically from an external library.
Definition: error.h:71
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:50
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
#define AVERROR_EOF
End of file.
Definition: error.h:55
#define av_err2str(errnum)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition: error.h:119
#define AVERROR(e)
Definition: error.h:43
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:553
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:203
AVFrameSideData * av_frame_new_side_data(AVFrame *frame, enum AVFrameSideDataType type, buffer_size_t size)
Add a new side data to a frame.
Definition: frame.c:726
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:190
@ AV_FRAME_DATA_ICC_PROFILE
The data contains an ICC profile as an opaque octet buffer following the format described by ISO 1507...
Definition: frame.h:143
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:215
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:200
#define AV_LOG_INFO
Standard information.
Definition: log.h:205
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:194
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:253
void * av_mallocz_array(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().
Definition: mem.c:190
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
@ AV_PICTURE_TYPE_I
Intra.
Definition: avutil.h:274
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
for(j=16;j >0;--j)
cl_device_type type
const char * key
misc image utilities
int i
Definition: input.c:407
#define AV_WB16(p, v)
Definition: intreadwrite.h:405
#define AV_WL16(p, v)
Definition: intreadwrite.h:412
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:41
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: internal.h:49
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
Definition: utils.c:84
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
const uint8_t ff_reverse[256]
Definition: reverse.c:23
const char * desc
Definition: libsvtav1.c:79
uint8_t w
Definition: llviddspenc.c:39
static const struct @322 planes[]
av_cold void ff_lzw_decode_close(LZWState **p)
Definition: lzw.c:118
int ff_lzw_decode_init(LZWState *p, int csize, const uint8_t *buf, int buf_size, int mode)
Initialize LZW decoder.
Definition: lzw.c:131
int ff_lzw_decode(LZWState *p, uint8_t *buf, int len)
Decode given number of bytes NOTE: the algorithm here is inspired from the LZW GIF decoder written by...
Definition: lzw.c:169
av_cold void ff_lzw_decode_open(LZWState **p)
Definition: lzw.c:113
LZW decoding routines.
@ FF_LZW_TIFF
Definition: lzw.h:39
int stride
Definition: mace.c:144
MJPEG decoder.
uint32_t tag
Definition: movenc.c:1600
unsigned bps
Definition: movenc.c:1601
const char data[16]
Definition: mxf.c:142
AVOptions.
#define AV_OPT_FLAG_DECODING_PARAM
a generic parameter which can be set by the user for demuxing or decoding
Definition: opt.h:279
#define AV_OPT_FLAG_VIDEO_PARAM
Definition: opt.h:281
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:148
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
Definition: pixdesc.h:144
#define AV_PIX_FMT_BAYER_GRBG16
Definition: pixfmt.h:426
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:381
#define AV_PIX_FMT_BAYER_BGGR16
Definition: pixfmt.h:423
#define AV_PIX_FMT_BAYER_RGGB16
Definition: pixfmt.h:424
@ AV_PIX_FMT_BAYER_GBRG8
bayer, GBGB..(odd line), RGRG..(even line), 8-bit samples
Definition: pixfmt.h:262
@ AV_PIX_FMT_GRAY16BE
Y , 16bpp, big-endian.
Definition: pixfmt.h:97
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
@ AV_PIX_FMT_YA16BE
16 bits gray, 16 bits alpha (big-endian)
Definition: pixfmt.h:212
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
@ AV_PIX_FMT_MONOBLACK
Y , 1bpp, 0 is black, 1 is white, in each byte pixels are ordered from the msb to the lsb.
Definition: pixfmt.h:76
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
@ AV_PIX_FMT_YA16LE
16 bits gray, 16 bits alpha (little-endian)
Definition: pixfmt.h:213
@ AV_PIX_FMT_RGB48BE
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as big...
Definition: pixfmt.h:102
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
@ AV_PIX_FMT_RGBA64BE
packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is st...
Definition: pixfmt.h:205
@ AV_PIX_FMT_RGBA64LE
packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is st...
Definition: pixfmt.h:206
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
@ AV_PIX_FMT_GBRAP16BE
planar GBRA 4:4:4:4 64bpp, big-endian
Definition: pixfmt.h:216
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:93
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
@ AV_PIX_FMT_BAYER_GRBG8
bayer, GRGR..(odd line), BGBG..(even line), 8-bit samples
Definition: pixfmt.h:263
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
@ AV_PIX_FMT_GBRP16BE
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:174
@ AV_PIX_FMT_RGB48LE
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as lit...
Definition: pixfmt.h:103
@ AV_PIX_FMT_RGB0
packed RGB 8:8:8, 32bpp, RGBXRGBX... X=unused/undefined
Definition: pixfmt.h:238
@ AV_PIX_FMT_GRAY16LE
Y , 16bpp, little-endian.
Definition: pixfmt.h:98
@ AV_PIX_FMT_PAL8
8 bits with AV_PIX_FMT_RGB32 palette
Definition: pixfmt.h:77
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
@ AV_PIX_FMT_GBRAP16LE
planar GBRA 4:4:4:4 64bpp, little-endian
Definition: pixfmt.h:217
@ AV_PIX_FMT_YA8
8 bits gray, 8 bits alpha
Definition: pixfmt.h:143
@ AV_PIX_FMT_BAYER_RGGB8
bayer, RGRG..(odd line), GBGB..(even line), 8-bit samples
Definition: pixfmt.h:261
@ AV_PIX_FMT_GBRP16LE
planar GBR 4:4:4 48bpp, little-endian
Definition: pixfmt.h:175
@ AV_PIX_FMT_BAYER_BGGR8
bayer, BGBG..(odd line), GRGR..(even line), 8-bit samples
Definition: pixfmt.h:260
#define AV_PIX_FMT_BAYER_GBRG16
Definition: pixfmt.h:425
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:383
@ AVCOL_TRC_GAMMA22
also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:488
@ AVCOL_TRC_LINEAR
"Linear transfer characteristics"
Definition: pixfmt.h:492
FF_ENABLE_DEPRECATION_WARNINGS int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
const char * name
Definition: qsvenc.c:46
#define pv
Definition: regdef.h:60
static const ElemCat * elements[ELEMENT_COUNT]
Definition: signature.h:566
#define FF_ARRAY_ELEMS(a)
#define snprintf
Definition: snprintf.h:34
static int shift(int a, int b)
Definition: sonic.c:82
const uint8_t * code
Definition: spdifenc.c:413
unsigned int pos
Definition: spdifenc.c:412
Describe the class of an AVClass context structure.
Definition: log.h:67
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
main external API structure.
Definition: avcodec.h:536
int flags2
AV_CODEC_FLAG2_*.
Definition: avcodec.h:623
int dct_algo
DCT algorithm, see FF_DCT_* below.
Definition: avcodec.h:1706
int idct_algo
IDCT algorithm, see FF_IDCT_* below.
Definition: avcodec.h:1719
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:616
void * priv_data
Definition: avcodec.h:563
int err_recognition
Error recognition; may misdetect some more or less valid parts as errors.
Definition: avcodec.h:1645
AVCodec.
Definition: codec.h:197
const char * name
Name of the codec implementation.
Definition: codec.h:204
Structure to hold side data for an AVFrame.
Definition: frame.h:220
uint8_t * data
Definition: frame.h:222
This structure describes decoded (raw) audio or video data.
Definition: frame.h:318
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:332
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:396
AVDictionary * metadata
metadata.
Definition: frame.h:604
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:349
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:566
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:391
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:401
AVOption.
Definition: opt.h:248
This structure stores compressed data.
Definition: packet.h:346
int size
Definition: packet.h:370
uint8_t * data
Definition: packet.h:369
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
Rational number (pair of numerator and denominator).
Definition: rational.h:58
Definition: lzw.c:46
GetByteContext gb
Definition: tiff.c:57
int le
Definition: tiff.c:73
int planar
Definition: tiff.c:76
int stripsizesoff
Definition: tiff.c:96
int stripsize
Definition: tiff.c:96
AVCodecContext * avctx_mjpeg
Definition: tiff.c:60
AVCodecContext * avctx
Definition: tiff.c:56
unsigned int yuv_line_size
Definition: tiff.c:110
uint32_t res[4]
Definition: tiff.c:81
int tile_width
Definition: tiff.c:102
int fax_opts
Definition: tiff.c:78
enum TiffType tiff_type
Definition: tiff.c:68
int is_thumbnail
Definition: tiff.c:82
int palette_is_set
Definition: tiff.c:72
unsigned last_tag
Definition: tiff.c:83
int subsampling[2]
Definition: tiff.c:77
unsigned int fax_buffer_size
Definition: tiff.c:112
unsigned white_level
Definition: tiff.c:88
int height
Definition: tiff.c:69
uint16_t dng_lut[65536]
Definition: tiff.c:89
int predictor
Definition: tiff.c:79
int tile_length
Definition: tiff.c:102
unsigned int bppcount
Definition: tiff.c:70
uint32_t palette[256]
Definition: tiff.c:71
int strippos
Definition: tiff.c:96
int tile_offsets_offset
Definition: tiff.c:101
AVPacket * jpkt
Definition: tiff.c:61
TiffGeoTag * geotags
Definition: tiff.c:115
int fill_order
Definition: tiff.c:80
uint8_t * yuv_line
Definition: tiff.c:109
AVFrame * jpgframe
Definition: tiff.c:62
uint16_t cur_page
Definition: tiff.c:92
int is_bayer
Definition: tiff.c:85
unsigned black_level
Definition: tiff.c:87
uint8_t pattern[4]
Definition: tiff.c:86
uint32_t sub_ifd
Definition: tiff.c:91
int width
Definition: tiff.c:69
LZWState * lzw
Definition: tiff.c:97
int sstype
Definition: tiff.c:94
int get_subimage
Definition: tiff.c:64
int deinvert_buf_size
Definition: tiff.c:108
int is_tiled
Definition: tiff.c:100
uint8_t * deinvert_buf
Definition: tiff.c:107
int geotag_count
Definition: tiff.c:114
int strips
Definition: tiff.c:94
int stripoff
Definition: tiff.c:96
enum TiffCompr compr
Definition: tiff.c:74
enum TiffPhotometric photometric
Definition: tiff.c:75
int get_thumbnail
Definition: tiff.c:66
int sot
Definition: tiff.c:95
int is_jpeg
Definition: tiff.c:105
int tile_count
Definition: tiff.c:103
int rps
Definition: tiff.c:94
int tile_byte_counts_offset
Definition: tiff.c:101
unsigned int bpp
Definition: tiff.c:70
uint16_t get_page
Definition: tiff.c:65
uint8_t * fax_buffer
Definition: tiff.c:111
Definition: graph2dot.c:48
#define av_free(p)
#define av_malloc_array(a, b)
#define avpriv_request_sample(...)
#define av_freep(p)
#define av_malloc(s)
#define av_log(a,...)
#define src
Definition: vp8dsp.c:255
#define height
#define width
#define ADD_METADATA(count, name, sep)
static const AVOption tiff_options[]
Definition: tiff.c:2200
static int get_geokey_type(int key)
Definition: tiff.c:149
static void unpack_yuv(TiffContext *s, AVFrame *p, const uint8_t *src, int lnum)
Definition: tiff.c:455
static uint16_t av_always_inline dng_process_color8(uint16_t value, const uint16_t *lut, uint16_t black_level, float scale_factor)
Definition: tiff.c:303
static uint16_t av_always_inline dng_process_color16(uint16_t value, const uint16_t *lut, uint16_t black_level, float scale_factor)
Map stored raw sensor values into linear reference values (see: DNG Specification - Chapter 5)
Definition: tiff.c:281
static int init_image(TiffContext *s, ThreadFrame *frame)
Definition: tiff.c:1052
static av_cold int tiff_end(AVCodecContext *avctx)
Definition: tiff.c:2180
#define RET_GEOKEY(TYPE, array, element)
Definition: tiff.c:134
static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
Definition: tiff.c:1244
static char * doubles2str(double *dp, int count, const char *sep)
Definition: tiff.c:241
static int dng_decode_strip(AVCodecContext *avctx, AVFrame *frame)
Definition: tiff.c:738
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:751
static const char * search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
Definition: tiff.c:164
static char * get_geokey_val(int key, int val)
Definition: tiff.c:173
static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
Definition: tiff.c:1225
static int cmp_id_key(const void *id, const void *k)
Definition: tiff.c:159
static int add_metadata(int count, int type, const char *name, const char *sep, TiffContext *s, AVFrame *frame)
Definition: tiff.c:267
static av_cold int tiff_init(AVCodecContext *avctx)
Definition: tiff.c:2139
static void av_always_inline dng_blit(TiffContext *s, uint8_t *dst, int dst_stride, const uint8_t *src, int src_stride, int width, int height, int is_single_comp, int is_u16)
Definition: tiff.c:311
static int dng_decode_tiles(AVCodecContext *avctx, AVFrame *frame, const AVPacket *avpkt)
Definition: tiff.c:976
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:615
static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
Definition: tiff.c:429
static const char * get_geokey_name(int key)
Definition: tiff.c:139
static void unpack_gray(TiffContext *s, AVFrame *p, const uint8_t *src, int lnum, int width, int bpp)
Definition: tiff.c:442
static const AVClass tiff_decoder_class
Definition: tiff.c:2207
static void free_geotags(TiffContext *const s)
Definition: tiff.c:123
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: tiff.c:1774
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:648
#define RET_GEOKEY_VAL(TYPE, array)
#define OFFSET(x)
Definition: tiff.c:2199
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:374
static void tiff_set_type(TiffContext *s, enum TiffType tiff_type)
Definition: tiff.c:118
AVCodec ff_tiff_decoder
Definition: tiff.c:2214
TIFF constants & data structures.
TiffCompr
list of TIFF, TIFF/EP and DNG compression types
Definition: tiff.h:120
@ TIFF_G4
Definition: tiff.h:124
@ TIFF_LZMA
Definition: tiff.h:131
@ TIFF_ADOBE_DEFLATE
Definition: tiff.h:128
@ TIFF_NEWJPEG
Definition: tiff.h:127
@ TIFF_RAW
Definition: tiff.h:121
@ TIFF_LZW
Definition: tiff.h:125
@ TIFF_JPEG
Definition: tiff.h:126
@ TIFF_DEFLATE
Definition: tiff.h:130
@ TIFF_PACKBITS
Definition: tiff.h:129
@ TIFF_CCITT_RLE
Definition: tiff.h:122
@ TIFF_G3
Definition: tiff.h:123
@ TIFF_TILE_LENGTH
Definition: tiff.h:80
@ TIFF_DOCUMENT_NAME
Definition: tiff.h:55
@ TIFF_ICC_PROFILE
Definition: tiff.h:95
@ TIFF_WIDTH
Definition: tiff.h:49
@ TIFF_GEO_DOUBLE_PARAMS
Definition: tiff.h:97
@ TIFF_HOST_COMPUTER
Definition: tiff.h:76
@ TIFF_MODEL_TRANSFORMATION
Definition: tiff.h:94
@ TIFF_ARTIST
Definition: tiff.h:75
@ TIFF_PLANAR
Definition: tiff.h:65
@ TIFF_COMPR
Definition: tiff.h:52
@ TIFF_PAL
Definition: tiff.h:78
@ TIFF_PAGE_NUMBER
Definition: tiff.h:72
@ TIFF_GEO_ASCII_PARAMS
Definition: tiff.h:98
@ TIFF_ROWSPERSTRIP
Definition: tiff.h:61
@ TIFF_TILE_WIDTH
Definition: tiff.h:79
@ TIFF_PHOTOMETRIC
Definition: tiff.h:53
@ TIFF_T6OPTIONS
Definition: tiff.h:70
@ TIFF_YCBCR_SUBSAMPLING
Definition: tiff.h:86
@ TIFF_SAMPLES_PER_PIXEL
Definition: tiff.h:60
@ TIFF_STRIP_SIZE
Definition: tiff.h:62
@ TIFF_MAKE
Definition: tiff.h:57
@ TIFF_CFA_PATTERN
Definition: tiff.h:90
@ TIFF_DATE
Definition: tiff.h:74
@ TIFF_MODEL_TIEPOINT
Definition: tiff.h:92
@ TIFF_COPYRIGHT
Definition: tiff.h:91
@ TIFF_TILE_BYTE_COUNTS
Definition: tiff.h:82
@ TIFF_YRES
Definition: tiff.h:64
@ TIFF_CFA_PATTERN_DIM
Definition: tiff.h:89
@ TIFF_GEO_KEY_DIRECTORY
Definition: tiff.h:96
@ TIFF_SUB_IFDS
Definition: tiff.h:83
@ TIFF_XRES
Definition: tiff.h:63
@ TIFF_HEIGHT
Definition: tiff.h:50
@ TIFF_SOFTWARE_NAME
Definition: tiff.h:73
@ TIFF_SUBFILE
Definition: tiff.h:48
@ TIFF_T4OPTIONS
Definition: tiff.h:69
@ TIFF_TILE_OFFSETS
Definition: tiff.h:81
@ TIFF_PREDICTOR
Definition: tiff.h:77
@ TIFF_IMAGE_DESCRIPTION
Definition: tiff.h:56
@ TIFF_BPP
Definition: tiff.h:51
@ TIFF_MODEL_PIXEL_SCALE
Definition: tiff.h:93
@ TIFF_FILL_ORDER
Definition: tiff.h:54
@ TIFF_MODEL
Definition: tiff.h:58
@ TIFF_PAGE_NAME
Definition: tiff.h:66
@ TIFF_STRIP_OFFS
Definition: tiff.h:59
@ TIFF_VERTICAL_CS_TYPE_GEOKEY
Definition: tiff.h:176
@ TIFF_GEOG_GEODETIC_DATUM_GEOKEY
Definition: tiff.h:140
@ TIFF_GEOG_ELLIPSOID_GEOKEY
Definition: tiff.h:146
@ TIFF_GEOG_ANGULAR_UNITS_GEOKEY
Definition: tiff.h:144
@ TIFF_GT_MODEL_TYPE_GEOKEY
Definition: tiff.h:135
@ TIFF_PROJECTION_GEOKEY
Definition: tiff.h:154
@ TIFF_PROJ_LINEAR_UNITS_GEOKEY
Definition: tiff.h:156
@ TIFF_GT_RASTER_TYPE_GEOKEY
Definition: tiff.h:136
@ TIFF_GEOG_PRIME_MERIDIAN_GEOKEY
Definition: tiff.h:141
@ TIFF_GEOG_AZIMUTH_UNITS_GEOKEY
Definition: tiff.h:150
@ TIFF_GEOG_LINEAR_UNITS_GEOKEY
Definition: tiff.h:142
@ TIFF_GEOGRAPHIC_TYPE_GEOKEY
Definition: tiff.h:138
@ TIFF_PROJECTED_CS_TYPE_GEOKEY
Definition: tiff.h:152
@ TIFF_VERTICAL_UNITS_GEOKEY
Definition: tiff.h:179
@ TIFF_PROJ_COORD_TRANS_GEOKEY
Definition: tiff.h:155
@ CINEMADNG_REEL_NAME
Definition: tiff.h:115
@ CINEMADNG_TIME_CODES
Definition: tiff.h:112
@ CINEMADNG_CAMERA_LABEL
Definition: tiff.h:116
@ CINEMADNG_FRAME_RATE
Definition: tiff.h:113
@ CINEMADNG_T_STOP
Definition: tiff.h:114
TiffPhotometric
list of TIFF, TIFF/AP and DNG PhotometricInterpretation (TIFF_PHOTOMETRIC) values
Definition: tiff.h:183
@ TIFF_PHOTOMETRIC_ICC_LAB
Definition: tiff.h:193
@ TIFF_PHOTOMETRIC_SEPARATED
Definition: tiff.h:190
@ TIFF_PHOTOMETRIC_LINEAR_RAW
Definition: tiff.h:198
@ TIFF_PHOTOMETRIC_RGB
Definition: tiff.h:187
@ TIFF_PHOTOMETRIC_CIE_LAB
Definition: tiff.h:192
@ TIFF_PHOTOMETRIC_YCBCR
Definition: tiff.h:191
@ TIFF_PHOTOMETRIC_LOG_L
Definition: tiff.h:196
@ TIFF_PHOTOMETRIC_PALETTE
Definition: tiff.h:188
@ TIFF_PHOTOMETRIC_WHITE_IS_ZERO
Definition: tiff.h:185
@ TIFF_PHOTOMETRIC_LOG_LUV
Definition: tiff.h:197
@ TIFF_PHOTOMETRIC_ALPHA_MASK
Definition: tiff.h:189
@ TIFF_PHOTOMETRIC_CFA
Definition: tiff.h:195
@ TIFF_PHOTOMETRIC_NONE
Definition: tiff.h:184
@ TIFF_PHOTOMETRIC_BLACK_IS_ZERO
Definition: tiff.h:186
@ TIFF_PHOTOMETRIC_ITU_LAB
Definition: tiff.h:194
@ DNG_VERSION
Definition: tiff.h:103
@ DNG_WHITE_LEVEL
Definition: tiff.h:107
@ DNG_LINEARIZATION_TABLE
Definition: tiff.h:105
@ DNG_BLACK_LEVEL
Definition: tiff.h:106
TiffType
TIFF types in ascenting priority (last in the list is highest)
Definition: tiff.h:37
@ TIFF_TYPE_CINEMADNG
Digital Negative (DNG) image part of an CinemaDNG image sequence.
Definition: tiff.h:43
@ TIFF_TYPE_TIFF
TIFF image based on the TIFF 6.0 or TIFF/EP (ISO 12234-2) specifications.
Definition: tiff.h:39
@ TIFF_TYPE_DNG
Digital Negative (DNG) image.
Definition: tiff.h:41
unsigned ff_tget(GetByteContext *gb, int type, int le)
Reads a byte from the bytestream using given endianness.
Definition: tiff_common.c:62
int ff_tadd_shorts_metadata(int count, const char *name, const char *sep, GetByteContext *gb, int le, int is_signed, AVDictionary **metadata)
Adds count shorts converted to a string into the metadata dictionary.
Definition: tiff_common.c:178
int ff_tadd_string_metadata(int count, const char *name, GetByteContext *gb, int le, AVDictionary **metadata)
Adds a string of count characters into the metadata dictionary.
Definition: tiff_common.c:241
int ff_tread_tag(GetByteContext *gb, int le, unsigned *tag, unsigned *type, unsigned *count, int *next)
Reads the first 3 fields of a TIFF tag, which are the tag id, the tag type and the count of values fo...
Definition: tiff_common.c:286
int ff_tdecode_header(GetByteContext *gb, int *le, int *ifd_offset)
Decodes a TIFF header from the input bytestream and sets the endianness in *le and the offset to the ...
Definition: tiff_common.c:261
unsigned ff_tget_short(GetByteContext *gb, int le)
Reads a short from the bytestream using given endianness.
Definition: tiff_common.c:43
int ff_tadd_doubles_metadata(int count, const char *name, const char *sep, GetByteContext *gb, int le, AVDictionary **metadata)
Adds count doubles converted to a string into the metadata dictionary.
Definition: tiff_common.c:147
double ff_tget_double(GetByteContext *gb, int le)
Reads a double from the bytestream using given endianness.
Definition: tiff_common.c:55
unsigned ff_tget_long(GetByteContext *gb, int le)
Reads a long from the bytestream using given endianness.
Definition: tiff_common.c:49
@ TIFF_BYTE
Definition: tiff_common.h:38
@ TIFF_SHORT
Definition: tiff_common.h:40
@ TIFF_LONG
Definition: tiff_common.h:41
@ TIFF_STRING
Definition: tiff_common.h:39
@ TIFF_DOUBLE
Definition: tiff_common.h:49
@ TIFF_RATIONAL
Definition: tiff_common.h:42
static const uint8_t type_sizes[14]
sizes of various TIFF field types (string size = 100)
Definition: tiff_common.h:54
TIFF data tables.
static const TiffGeoTagKeyName tiff_projection_codes[]
Definition: tiff_data.h:1517
#define TIFF_GEO_KEY_USER_DEFINED
Definition: tiff_data.h:97
static const TiffGeoTagKeyName tiff_proj_cs_type_codes[]
Definition: tiff_data.h:536
#define TIFF_GEO_KEY_UNDEFINED
Definition: tiff_data.h:96
int size
const char * b
Definition: vf_curves.c:118
const char * g
Definition: vf_curves.c:117
const char * r
Definition: vf_curves.c:116
if(ret< 0)
Definition: vf_mcdeint.c:282
static void inflate(uint8_t *dst, const uint8_t *p1, int width, int threshold, const uint8_t *coordinates[], int coord, int maxc)
Definition: vf_neighbor.c:198
static const uint8_t offset[127][2]
Definition: vf_spp.c:107
int len
static double c[64]