FFmpeg
tiff.c
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1 /*
2  * Copyright (c) 2006 Konstantin Shishkov
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * TIFF image decoder
24  * @author Konstantin Shishkov
25  */
26 
27 #include "config.h"
28 #if CONFIG_ZLIB
29 #include <zlib.h>
30 #endif
31 #if CONFIG_LZMA
32 #define LZMA_API_STATIC
33 #include <lzma.h>
34 #endif
35 
36 #include "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 "libavutil/reverse.h"
43 #include "avcodec.h"
44 #include "bytestream.h"
45 #include "codec_internal.h"
46 #include "faxcompr.h"
47 #include "internal.h"
48 #include "lzw.h"
49 #include "mathops.h"
50 #include "tiff.h"
51 #include "tiff_data.h"
52 #include "mjpegdec.h"
53 #include "thread.h"
54 #include "get_bits.h"
55 
56 typedef struct TiffContext {
57  AVClass *class;
60 
61  /* JPEG decoding for DNG */
62  AVCodecContext *avctx_mjpeg; // wrapper context for MJPEG
63  AVPacket *jpkt; // encoded JPEG tile
64  AVFrame *jpgframe; // decoded JPEG tile
65 
67  uint16_t get_page;
69 
71  int width, height;
72  unsigned int bpp, bppcount;
73  uint32_t palette[256];
75  int le;
78  int planar;
79  int subsampling[2];
80  int fax_opts;
81  int predictor;
83  uint32_t res[4];
85  unsigned last_tag;
86 
87  int is_bayer;
88  uint8_t pattern[4];
89  unsigned black_level;
90  unsigned white_level;
91  uint16_t dng_lut[65536];
92 
93  uint32_t sub_ifd;
94  uint16_t cur_page;
95 
96  int strips, rps, sstype;
97  int sot;
100 
101  /* Tile support */
102  int is_tiled;
106 
107  int is_jpeg;
108 
109  uint8_t *deinvert_buf;
111  uint8_t *yuv_line;
112  unsigned int yuv_line_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 line;
619  int ret;
620 
621  if (s->fill_order) {
622  if ((ret = deinvert_buffer(s, src, size)) < 0)
623  return ret;
624  src = s->deinvert_buf;
625  }
626  ret = ff_ccitt_unpack(s->avctx, src, size, dst, lines, stride,
627  s->compr, s->fax_opts);
628  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
629  for (line = 0; line < lines; line++) {
630  horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
631  dst += stride;
632  }
633  return ret;
634 }
635 
637  int tile_byte_count, int dst_x, int dst_y, int w, int h)
638 {
639  TiffContext *s = avctx->priv_data;
640  uint8_t *dst_data, *src_data;
641  uint32_t dst_offset; /* offset from dst buffer in pixels */
642  int is_single_comp, is_u16, pixel_size;
643  int ret;
644 
645  if (tile_byte_count < 0 || tile_byte_count > bytestream2_get_bytes_left(&s->gb))
646  return AVERROR_INVALIDDATA;
647 
648  /* Prepare a packet and send to the MJPEG decoder */
649  av_packet_unref(s->jpkt);
650  s->jpkt->data = (uint8_t*)s->gb.buffer;
651  s->jpkt->size = tile_byte_count;
652 
653  if (s->is_bayer) {
654  MJpegDecodeContext *mjpegdecctx = s->avctx_mjpeg->priv_data;
655  /* We have to set this information here, there is no way to know if a given JPEG is a DNG-embedded
656  image or not from its own data (and we need that information when decoding it). */
657  mjpegdecctx->bayer = 1;
658  }
659 
660  ret = avcodec_send_packet(s->avctx_mjpeg, s->jpkt);
661  if (ret < 0) {
662  av_log(avctx, AV_LOG_ERROR, "Error submitting a packet for decoding\n");
663  return ret;
664  }
665 
666  ret = avcodec_receive_frame(s->avctx_mjpeg, s->jpgframe);
667  if (ret < 0) {
668  av_log(avctx, AV_LOG_ERROR, "JPEG decoding error: %s.\n", av_err2str(ret));
669 
670  /* Normally skip, error if explode */
671  if (avctx->err_recognition & AV_EF_EXPLODE)
672  return AVERROR_INVALIDDATA;
673  else
674  return 0;
675  }
676 
677  is_u16 = (s->bpp > 8);
678 
679  /* Copy the outputted tile's pixels from 'jpgframe' to 'frame' (final buffer) */
680 
681  if (s->jpgframe->width != s->avctx_mjpeg->width ||
682  s->jpgframe->height != s->avctx_mjpeg->height ||
683  s->jpgframe->format != s->avctx_mjpeg->pix_fmt)
684  return AVERROR_INVALIDDATA;
685 
686  /* See dng_blit for explanation */
687  if (s->avctx_mjpeg->width == w * 2 &&
688  s->avctx_mjpeg->height == h / 2 &&
689  s->avctx_mjpeg->pix_fmt == AV_PIX_FMT_GRAY16LE) {
690  is_single_comp = 1;
691  } else if (s->avctx_mjpeg->width >= w &&
692  s->avctx_mjpeg->height >= h &&
693  s->avctx_mjpeg->pix_fmt == (is_u16 ? AV_PIX_FMT_GRAY16 : AV_PIX_FMT_GRAY8)
694  ) {
695  is_single_comp = 0;
696  } else
697  return AVERROR_INVALIDDATA;
698 
699  pixel_size = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
700 
701  if (is_single_comp && !is_u16) {
702  av_log(s->avctx, AV_LOG_ERROR, "DNGs with bpp <= 8 and 1 component are unsupported\n");
703  av_frame_unref(s->jpgframe);
704  return AVERROR_PATCHWELCOME;
705  }
706 
707  dst_offset = dst_x + frame->linesize[0] * dst_y / pixel_size;
708  dst_data = frame->data[0] + dst_offset * pixel_size;
709  src_data = s->jpgframe->data[0];
710 
711  dng_blit(s,
712  dst_data,
713  frame->linesize[0] / pixel_size,
714  src_data,
715  s->jpgframe->linesize[0] / pixel_size,
716  w,
717  h,
718  is_single_comp,
719  is_u16);
720 
721  av_frame_unref(s->jpgframe);
722 
723  return 0;
724 }
725 
726 static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
727  const uint8_t *src, int size, int strip_start, int lines)
728 {
729  PutByteContext pb;
730  int c, line, pixels, code, ret;
731  const uint8_t *ssrc = src;
732  int width = ((s->width * s->bpp) + 7) >> 3;
734  int is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) &&
735  (desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
736  desc->nb_components >= 3;
737  int is_dng;
738 
739  if (s->planar)
740  width /= s->bppcount;
741 
742  if (size <= 0)
743  return AVERROR_INVALIDDATA;
744 
745  if (is_yuv) {
746  int bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
747  s->subsampling[0] * s->subsampling[1] + 7) >> 3;
748  av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row);
749  if (s->yuv_line == NULL) {
750  av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
751  return AVERROR(ENOMEM);
752  }
753  dst = s->yuv_line;
754  stride = 0;
755 
756  width = (s->width - 1) / s->subsampling[0] + 1;
757  width = width * s->subsampling[0] * s->subsampling[1] + 2*width;
758  av_assert0(width <= bytes_per_row);
759  av_assert0(s->bpp == 24);
760  }
761  if (s->is_bayer) {
762  av_assert0(width == (s->bpp * s->width + 7) >> 3);
763  }
764  if (p->format == AV_PIX_FMT_GRAY12) {
765  av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, width);
766  if (s->yuv_line == NULL) {
767  av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
768  return AVERROR(ENOMEM);
769  }
770  dst = s->yuv_line;
771  stride = 0;
772  }
773 
774  if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
775 #if CONFIG_ZLIB
776  return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines,
777  strip_start, is_yuv);
778 #else
779  av_log(s->avctx, AV_LOG_ERROR,
780  "zlib support not enabled, "
781  "deflate compression not supported\n");
782  return AVERROR(ENOSYS);
783 #endif
784  }
785  if (s->compr == TIFF_LZMA) {
786 #if CONFIG_LZMA
787  return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
788  strip_start, is_yuv);
789 #else
790  av_log(s->avctx, AV_LOG_ERROR,
791  "LZMA support not enabled\n");
792  return AVERROR(ENOSYS);
793 #endif
794  }
795  if (s->compr == TIFF_LZW) {
796  if (s->fill_order) {
797  if ((ret = deinvert_buffer(s, src, size)) < 0)
798  return ret;
799  ssrc = src = s->deinvert_buf;
800  }
801  if (size > 1 && !src[0] && (src[1]&1)) {
802  av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
803  }
804  if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
805  av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
806  return ret;
807  }
808  for (line = 0; line < lines; line++) {
809  pixels = ff_lzw_decode(s->lzw, dst, width);
810  if (pixels < width) {
811  av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
812  pixels, width);
813  return AVERROR_INVALIDDATA;
814  }
815  if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
816  horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
817  if (is_yuv) {
818  unpack_yuv(s, p, dst, strip_start + line);
819  line += s->subsampling[1] - 1;
820  } else if (p->format == AV_PIX_FMT_GRAY12) {
821  unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
822  }
823  dst += stride;
824  }
825  return 0;
826  }
827  if (s->compr == TIFF_CCITT_RLE ||
828  s->compr == TIFF_G3 ||
829  s->compr == TIFF_G4) {
830  if (is_yuv || p->format == AV_PIX_FMT_GRAY12)
831  return AVERROR_INVALIDDATA;
832 
833  return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
834  }
835 
836  bytestream2_init(&s->gb, src, size);
837  bytestream2_init_writer(&pb, dst, is_yuv ? s->yuv_line_size : (stride * lines));
838 
839  is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
840 
841  /* Decode JPEG-encoded DNGs with strips */
842  if (s->compr == TIFF_NEWJPEG && is_dng) {
843  if (s->strips > 1) {
844  av_log(s->avctx, AV_LOG_ERROR, "More than one DNG JPEG strips unsupported\n");
845  return AVERROR_PATCHWELCOME;
846  }
847  if ((ret = dng_decode_jpeg(s->avctx, p, s->stripsize, 0, 0, s->width, s->height)) < 0)
848  return ret;
849  return 0;
850  }
851 
852  if (is_dng && stride == 0)
853  return AVERROR_INVALIDDATA;
854 
855  for (line = 0; line < lines; line++) {
856  if (src - ssrc > size) {
857  av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
858  return AVERROR_INVALIDDATA;
859  }
860 
861  if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb))
862  break;
863  bytestream2_seek_p(&pb, stride * line, SEEK_SET);
864  switch (s->compr) {
865  case TIFF_RAW:
866  if (ssrc + size - src < width)
867  return AVERROR_INVALIDDATA;
868 
869  if (!s->fill_order) {
870  horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 || s->is_bayer),
871  dst, 1, src, 0, width, 0);
872  } else {
873  int i;
874  for (i = 0; i < width; i++)
875  dst[i] = ff_reverse[src[i]];
876  }
877 
878  /* Color processing for DNG images with uncompressed strips (non-tiled) */
879  if (is_dng) {
880  int is_u16, pixel_size_bytes, pixel_size_bits, elements;
881 
882  is_u16 = (s->bpp / s->bppcount > 8);
883  pixel_size_bits = (is_u16 ? 16 : 8);
884  pixel_size_bytes = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
885 
886  elements = width / pixel_size_bytes * pixel_size_bits / s->bpp * s->bppcount; // need to account for [1, 16] bpp
887  av_assert0 (elements * pixel_size_bytes <= FFABS(stride));
888  dng_blit(s,
889  dst,
890  0, // no stride, only 1 line
891  dst,
892  0, // no stride, only 1 line
893  elements,
894  1,
895  0, // single-component variation is only preset in JPEG-encoded DNGs
896  is_u16);
897  }
898 
899  src += width;
900  break;
901  case TIFF_PACKBITS:
902  for (pixels = 0; pixels < width;) {
903  if (ssrc + size - src < 2) {
904  av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
905  return AVERROR_INVALIDDATA;
906  }
907  code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
908  if (code >= 0) {
909  code++;
910  if (pixels + code > width ||
911  ssrc + size - src < code) {
912  av_log(s->avctx, AV_LOG_ERROR,
913  "Copy went out of bounds\n");
914  return AVERROR_INVALIDDATA;
915  }
916  horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
917  dst, 1, src, 0, code, pixels);
918  src += code;
919  pixels += code;
920  } else if (code != -128) { // -127..-1
921  code = (-code) + 1;
922  if (pixels + code > width) {
923  av_log(s->avctx, AV_LOG_ERROR,
924  "Run went out of bounds\n");
925  return AVERROR_INVALIDDATA;
926  }
927  c = *src++;
928  horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
929  dst, 0, NULL, c, code, pixels);
930  pixels += code;
931  }
932  }
933  if (s->fill_order) {
934  int i;
935  for (i = 0; i < width; i++)
936  dst[i] = ff_reverse[dst[i]];
937  }
938  break;
939  }
940  if (is_yuv) {
941  unpack_yuv(s, p, dst, strip_start + line);
942  line += s->subsampling[1] - 1;
943  } else if (p->format == AV_PIX_FMT_GRAY12) {
944  unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
945  }
946  dst += stride;
947  }
948  return 0;
949 }
950 
952  const AVPacket *avpkt)
953 {
954  TiffContext *s = avctx->priv_data;
955  int tile_idx;
956  int tile_offset_offset, tile_offset;
957  int tile_byte_count_offset, tile_byte_count;
958  int tile_count_x, tile_count_y;
959  int tile_width, tile_length;
960  int has_width_leftover, has_height_leftover;
961  int tile_x = 0, tile_y = 0;
962  int pos_x = 0, pos_y = 0;
963  int ret;
964 
965  has_width_leftover = (s->width % s->tile_width != 0);
966  has_height_leftover = (s->height % s->tile_length != 0);
967 
968  /* Calculate tile counts (round up) */
969  tile_count_x = (s->width + s->tile_width - 1) / s->tile_width;
970  tile_count_y = (s->height + s->tile_length - 1) / s->tile_length;
971 
972  /* Iterate over the number of tiles */
973  for (tile_idx = 0; tile_idx < s->tile_count; tile_idx++) {
974  tile_x = tile_idx % tile_count_x;
975  tile_y = tile_idx / tile_count_x;
976 
977  if (has_width_leftover && tile_x == tile_count_x - 1) // If on the right-most tile
978  tile_width = s->width % s->tile_width;
979  else
980  tile_width = s->tile_width;
981 
982  if (has_height_leftover && tile_y == tile_count_y - 1) // If on the bottom-most tile
983  tile_length = s->height % s->tile_length;
984  else
985  tile_length = s->tile_length;
986 
987  /* Read tile offset */
988  tile_offset_offset = s->tile_offsets_offset + tile_idx * sizeof(int);
989  bytestream2_seek(&s->gb, tile_offset_offset, SEEK_SET);
990  tile_offset = ff_tget_long(&s->gb, s->le);
991 
992  /* Read tile byte size */
993  tile_byte_count_offset = s->tile_byte_counts_offset + tile_idx * sizeof(int);
994  bytestream2_seek(&s->gb, tile_byte_count_offset, SEEK_SET);
995  tile_byte_count = ff_tget_long(&s->gb, s->le);
996 
997  /* Seek to tile data */
998  bytestream2_seek(&s->gb, tile_offset, SEEK_SET);
999 
1000  /* Decode JPEG tile and copy it in the reference frame */
1001  ret = dng_decode_jpeg(avctx, frame, tile_byte_count, pos_x, pos_y, tile_width, tile_length);
1002 
1003  if (ret < 0)
1004  return ret;
1005 
1006  /* Advance current positions */
1007  pos_x += tile_width;
1008  if (tile_x == tile_count_x - 1) { // If on the right edge
1009  pos_x = 0;
1010  pos_y += tile_length;
1011  }
1012  }
1013 
1014  /* Frame is ready to be output */
1015  frame->pict_type = AV_PICTURE_TYPE_I;
1016  frame->key_frame = 1;
1017 
1018  return avpkt->size;
1019 }
1020 
1022 {
1023  int ret;
1024  int create_gray_palette = 0;
1025 
1026  // make sure there is no aliasing in the following switch
1027  if (s->bpp >= 100 || s->bppcount >= 10) {
1028  av_log(s->avctx, AV_LOG_ERROR,
1029  "Unsupported image parameters: bpp=%d, bppcount=%d\n",
1030  s->bpp, s->bppcount);
1031  return AVERROR_INVALIDDATA;
1032  }
1033 
1034  switch (s->planar * 1000 + s->bpp * 10 + s->bppcount + s->is_bayer * 10000) {
1035  case 11:
1036  if (!s->palette_is_set) {
1037  s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
1038  break;
1039  }
1040  case 21:
1041  case 41:
1042  s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
1043  if (!s->palette_is_set) {
1044  create_gray_palette = 1;
1045  }
1046  break;
1047  case 81:
1048  s->avctx->pix_fmt = s->palette_is_set ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_GRAY8;
1049  break;
1050  case 121:
1051  s->avctx->pix_fmt = AV_PIX_FMT_GRAY12;
1052  break;
1053  case 10081:
1054  switch (AV_RL32(s->pattern)) {
1055  case 0x02010100:
1056  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB8;
1057  break;
1058  case 0x00010102:
1059  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR8;
1060  break;
1061  case 0x01000201:
1062  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG8;
1063  break;
1064  case 0x01020001:
1065  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG8;
1066  break;
1067  default:
1068  av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1069  AV_RL32(s->pattern));
1070  return AVERROR_PATCHWELCOME;
1071  }
1072  break;
1073  case 10101:
1074  case 10121:
1075  case 10141:
1076  case 10161:
1077  switch (AV_RL32(s->pattern)) {
1078  case 0x02010100:
1079  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB16;
1080  break;
1081  case 0x00010102:
1082  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR16;
1083  break;
1084  case 0x01000201:
1085  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG16;
1086  break;
1087  case 0x01020001:
1088  s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG16;
1089  break;
1090  default:
1091  av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1092  AV_RL32(s->pattern));
1093  return AVERROR_PATCHWELCOME;
1094  }
1095  break;
1096  case 243:
1097  if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1098  if (s->subsampling[0] == 1 && s->subsampling[1] == 1) {
1099  s->avctx->pix_fmt = AV_PIX_FMT_YUV444P;
1100  } else if (s->subsampling[0] == 2 && s->subsampling[1] == 1) {
1101  s->avctx->pix_fmt = AV_PIX_FMT_YUV422P;
1102  } else if (s->subsampling[0] == 4 && s->subsampling[1] == 1) {
1103  s->avctx->pix_fmt = AV_PIX_FMT_YUV411P;
1104  } else if (s->subsampling[0] == 1 && s->subsampling[1] == 2) {
1105  s->avctx->pix_fmt = AV_PIX_FMT_YUV440P;
1106  } else if (s->subsampling[0] == 2 && s->subsampling[1] == 2) {
1107  s->avctx->pix_fmt = AV_PIX_FMT_YUV420P;
1108  } else if (s->subsampling[0] == 4 && s->subsampling[1] == 4) {
1109  s->avctx->pix_fmt = AV_PIX_FMT_YUV410P;
1110  } else {
1111  av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr subsampling\n");
1112  return AVERROR_PATCHWELCOME;
1113  }
1114  } else
1115  s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
1116  break;
1117  case 161:
1118  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
1119  break;
1120  case 162:
1121  s->avctx->pix_fmt = AV_PIX_FMT_YA8;
1122  break;
1123  case 322:
1124  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_YA16LE : AV_PIX_FMT_YA16BE;
1125  break;
1126  case 324:
1127  s->avctx->pix_fmt = s->photometric == TIFF_PHOTOMETRIC_SEPARATED ? AV_PIX_FMT_RGB0 : AV_PIX_FMT_RGBA;
1128  break;
1129  case 405:
1130  if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED)
1131  s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
1132  else {
1133  av_log(s->avctx, AV_LOG_ERROR,
1134  "bpp=40 without PHOTOMETRIC_SEPARATED is unsupported\n");
1135  return AVERROR_PATCHWELCOME;
1136  }
1137  break;
1138  case 483:
1139  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
1140  break;
1141  case 644:
1142  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
1143  break;
1144  case 1243:
1145  s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
1146  break;
1147  case 1324:
1148  s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
1149  break;
1150  case 1483:
1151  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE;
1152  break;
1153  case 1644:
1154  s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE;
1155  break;
1156  default:
1157  av_log(s->avctx, AV_LOG_ERROR,
1158  "This format is not supported (bpp=%d, bppcount=%d)\n",
1159  s->bpp, s->bppcount);
1160  return AVERROR_INVALIDDATA;
1161  }
1162 
1163  if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1164  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
1165  if((desc->flags & AV_PIX_FMT_FLAG_RGB) ||
1166  !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) ||
1167  desc->nb_components < 3) {
1168  av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr variant\n");
1169  return AVERROR_INVALIDDATA;
1170  }
1171  }
1172 
1173  if (s->width != s->avctx->width || s->height != s->avctx->height) {
1174  ret = ff_set_dimensions(s->avctx, s->width, s->height);
1175  if (ret < 0)
1176  return ret;
1177  }
1178  if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
1179  return ret;
1180  if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
1181  if (!create_gray_palette)
1182  memcpy(frame->data[1], s->palette, sizeof(s->palette));
1183  else {
1184  /* make default grayscale pal */
1185  int i;
1186  uint32_t *pal = (uint32_t *)frame->data[1];
1187  for (i = 0; i < 1<<s->bpp; i++)
1188  pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
1189  }
1190  }
1191  return 0;
1192 }
1193 
1194 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
1195 {
1196  int offset = tag == TIFF_YRES ? 2 : 0;
1197  s->res[offset++] = num;
1198  s->res[offset] = den;
1199  if (s->res[0] && s->res[1] && s->res[2] && s->res[3]) {
1200  uint64_t num = s->res[2] * (uint64_t)s->res[1];
1201  uint64_t den = s->res[0] * (uint64_t)s->res[3];
1202  if (num > INT64_MAX || den > INT64_MAX) {
1203  num = num >> 1;
1204  den = den >> 1;
1205  }
1206  av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den,
1207  num, den, INT32_MAX);
1208  if (!s->avctx->sample_aspect_ratio.den)
1209  s->avctx->sample_aspect_ratio = (AVRational) {0, 1};
1210  }
1211 }
1212 
1214 {
1215  AVFrameSideData *sd;
1216  GetByteContext gb_temp;
1217  unsigned tag, type, count, off, value = 0, value2 = 1; // value2 is a denominator so init. to 1
1218  int i, start;
1219  int pos;
1220  int ret;
1221  double *dp;
1222 
1223  ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
1224  if (ret < 0) {
1225  goto end;
1226  }
1227  if (tag <= s->last_tag)
1228  return AVERROR_INVALIDDATA;
1229 
1230  // We ignore TIFF_STRIP_SIZE as it is sometimes in the logic but wrong order around TIFF_STRIP_OFFS
1231  if (tag != TIFF_STRIP_SIZE)
1232  s->last_tag = tag;
1233 
1234  off = bytestream2_tell(&s->gb);
1235  if (count == 1) {
1236  switch (type) {
1237  case TIFF_BYTE:
1238  case TIFF_SHORT:
1239  case TIFF_LONG:
1240  value = ff_tget(&s->gb, type, s->le);
1241  break;
1242  case TIFF_RATIONAL:
1243  value = ff_tget(&s->gb, TIFF_LONG, s->le);
1244  value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
1245  if (!value2) {
1246  av_log(s->avctx, AV_LOG_WARNING, "Invalid denominator in rational\n");
1247  value2 = 1;
1248  }
1249 
1250  break;
1251  case TIFF_STRING:
1252  if (count <= 4) {
1253  break;
1254  }
1255  default:
1256  value = UINT_MAX;
1257  }
1258  }
1259 
1260  switch (tag) {
1261  case TIFF_SUBFILE:
1262  s->is_thumbnail = (value != 0);
1263  break;
1264  case TIFF_WIDTH:
1265  s->width = value;
1266  break;
1267  case TIFF_HEIGHT:
1268  s->height = value;
1269  break;
1270  case TIFF_BPP:
1271  if (count > 5 || count <= 0) {
1272  av_log(s->avctx, AV_LOG_ERROR,
1273  "This format is not supported (bpp=%d, %d components)\n",
1274  value, count);
1275  return AVERROR_INVALIDDATA;
1276  }
1277  s->bppcount = count;
1278  if (count == 1)
1279  s->bpp = value;
1280  else {
1281  switch (type) {
1282  case TIFF_BYTE:
1283  case TIFF_SHORT:
1284  case TIFF_LONG:
1285  s->bpp = 0;
1286  if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
1287  return AVERROR_INVALIDDATA;
1288  for (i = 0; i < count; i++)
1289  s->bpp += ff_tget(&s->gb, type, s->le);
1290  break;
1291  default:
1292  s->bpp = -1;
1293  }
1294  }
1295  break;
1297  if (count != 1) {
1298  av_log(s->avctx, AV_LOG_ERROR,
1299  "Samples per pixel requires a single value, many provided\n");
1300  return AVERROR_INVALIDDATA;
1301  }
1302  if (value > 5 || value <= 0) {
1303  av_log(s->avctx, AV_LOG_ERROR,
1304  "Invalid samples per pixel %d\n", value);
1305  return AVERROR_INVALIDDATA;
1306  }
1307  if (s->bppcount == 1)
1308  s->bpp *= value;
1309  s->bppcount = value;
1310  break;
1311  case TIFF_COMPR:
1312  s->compr = value;
1313  av_log(s->avctx, AV_LOG_DEBUG, "compression: %d\n", s->compr);
1314  s->predictor = 0;
1315  switch (s->compr) {
1316  case TIFF_RAW:
1317  case TIFF_PACKBITS:
1318  case TIFF_LZW:
1319  case TIFF_CCITT_RLE:
1320  break;
1321  case TIFF_G3:
1322  case TIFF_G4:
1323  s->fax_opts = 0;
1324  break;
1325  case TIFF_DEFLATE:
1326  case TIFF_ADOBE_DEFLATE:
1327 #if CONFIG_ZLIB
1328  break;
1329 #else
1330  av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
1331  return AVERROR(ENOSYS);
1332 #endif
1333  case TIFF_JPEG:
1334  case TIFF_NEWJPEG:
1335  s->is_jpeg = 1;
1336  break;
1337  case TIFF_LZMA:
1338 #if CONFIG_LZMA
1339  break;
1340 #else
1341  av_log(s->avctx, AV_LOG_ERROR, "LZMA not compiled in\n");
1342  return AVERROR(ENOSYS);
1343 #endif
1344  default:
1345  av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
1346  s->compr);
1347  return AVERROR_INVALIDDATA;
1348  }
1349  break;
1350  case TIFF_ROWSPERSTRIP:
1351  if (!value || (type == TIFF_LONG && value == UINT_MAX))
1352  value = s->height;
1353  s->rps = FFMIN(value, s->height);
1354  break;
1355  case TIFF_STRIP_OFFS:
1356  if (count == 1) {
1357  if (value > INT_MAX) {
1358  av_log(s->avctx, AV_LOG_ERROR,
1359  "strippos %u too large\n", value);
1360  return AVERROR_INVALIDDATA;
1361  }
1362  s->strippos = 0;
1363  s->stripoff = value;
1364  } else
1365  s->strippos = off;
1366  s->strips = count;
1367  if (s->strips == 1)
1368  s->rps = s->height;
1369  s->sot = type;
1370  break;
1371  case TIFF_STRIP_SIZE:
1372  if (count == 1) {
1373  if (value > INT_MAX) {
1374  av_log(s->avctx, AV_LOG_ERROR,
1375  "stripsize %u too large\n", value);
1376  return AVERROR_INVALIDDATA;
1377  }
1378  s->stripsizesoff = 0;
1379  s->stripsize = value;
1380  s->strips = 1;
1381  } else {
1382  s->stripsizesoff = off;
1383  }
1384  s->strips = count;
1385  s->sstype = type;
1386  break;
1387  case TIFF_XRES:
1388  case TIFF_YRES:
1389  set_sar(s, tag, value, value2);
1390  break;
1391  case TIFF_TILE_OFFSETS:
1392  s->tile_offsets_offset = off;
1393  s->tile_count = count;
1394  s->is_tiled = 1;
1395  break;
1396  case TIFF_TILE_BYTE_COUNTS:
1397  s->tile_byte_counts_offset = off;
1398  break;
1399  case TIFF_TILE_LENGTH:
1400  s->tile_length = value;
1401  break;
1402  case TIFF_TILE_WIDTH:
1403  s->tile_width = value;
1404  break;
1405  case TIFF_PREDICTOR:
1406  s->predictor = value;
1407  break;
1408  case TIFF_SUB_IFDS:
1409  if (count == 1)
1410  s->sub_ifd = value;
1411  else if (count > 1)
1412  s->sub_ifd = ff_tget(&s->gb, TIFF_LONG, s->le); /** Only get the first SubIFD */
1413  break;
1415  if (count > FF_ARRAY_ELEMS(s->dng_lut))
1416  return AVERROR_INVALIDDATA;
1417  for (int i = 0; i < count; i++)
1418  s->dng_lut[i] = ff_tget(&s->gb, type, s->le);
1419  break;
1420  case DNG_BLACK_LEVEL:
1421  if (count > 1) { /* Use the first value in the pattern (assume they're all the same) */
1422  if (type == TIFF_RATIONAL) {
1423  value = ff_tget(&s->gb, TIFF_LONG, s->le);
1424  value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
1425  if (!value2) {
1426  av_log(s->avctx, AV_LOG_WARNING, "Invalid black level denominator\n");
1427  value2 = 1;
1428  }
1429 
1430  s->black_level = value / value2;
1431  } else
1432  s->black_level = ff_tget(&s->gb, type, s->le);
1433  av_log(s->avctx, AV_LOG_WARNING, "Assuming black level pattern values are identical\n");
1434  } else {
1435  s->black_level = value / value2;
1436  }
1437  break;
1438  case DNG_WHITE_LEVEL:
1439  s->white_level = value;
1440  break;
1441  case TIFF_CFA_PATTERN_DIM:
1442  if (count != 2 || (ff_tget(&s->gb, type, s->le) != 2 &&
1443  ff_tget(&s->gb, type, s->le) != 2)) {
1444  av_log(s->avctx, AV_LOG_ERROR, "CFA Pattern dimensions are not 2x2\n");
1445  return AVERROR_INVALIDDATA;
1446  }
1447  break;
1448  case TIFF_CFA_PATTERN:
1449  s->is_bayer = 1;
1450  s->pattern[0] = ff_tget(&s->gb, type, s->le);
1451  s->pattern[1] = ff_tget(&s->gb, type, s->le);
1452  s->pattern[2] = ff_tget(&s->gb, type, s->le);
1453  s->pattern[3] = ff_tget(&s->gb, type, s->le);
1454  break;
1455  case TIFF_PHOTOMETRIC:
1456  switch (value) {
1459  case TIFF_PHOTOMETRIC_RGB:
1463  case TIFF_PHOTOMETRIC_CFA:
1464  case TIFF_PHOTOMETRIC_LINEAR_RAW: // Used by DNG images
1465  s->photometric = value;
1466  break;
1474  "PhotometricInterpretation 0x%04X",
1475  value);
1476  return AVERROR_PATCHWELCOME;
1477  default:
1478  av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
1479  "unknown\n", value);
1480  return AVERROR_INVALIDDATA;
1481  }
1482  break;
1483  case TIFF_FILL_ORDER:
1484  if (value < 1 || value > 2) {
1485  av_log(s->avctx, AV_LOG_ERROR,
1486  "Unknown FillOrder value %d, trying default one\n", value);
1487  value = 1;
1488  }
1489  s->fill_order = value - 1;
1490  break;
1491  case TIFF_PAL: {
1492  GetByteContext pal_gb[3];
1493  off = type_sizes[type];
1494  if (count / 3 > 256 ||
1495  bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
1496  return AVERROR_INVALIDDATA;
1497 
1498  pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
1499  bytestream2_skip(&pal_gb[1], count / 3 * off);
1500  bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
1501 
1502  off = (type_sizes[type] - 1) << 3;
1503  if (off > 31U) {
1504  av_log(s->avctx, AV_LOG_ERROR, "palette shift %d is out of range\n", off);
1505  return AVERROR_INVALIDDATA;
1506  }
1507 
1508  for (i = 0; i < count / 3; i++) {
1509  uint32_t p = 0xFF000000;
1510  p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
1511  p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
1512  p |= ff_tget(&pal_gb[2], type, s->le) >> off;
1513  s->palette[i] = p;
1514  }
1515  s->palette_is_set = 1;
1516  break;
1517  }
1518  case TIFF_PLANAR:
1519  s->planar = value == 2;
1520  break;
1522  if (count != 2) {
1523  av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n");
1524  return AVERROR_INVALIDDATA;
1525  }
1526  for (i = 0; i < count; i++) {
1527  s->subsampling[i] = ff_tget(&s->gb, type, s->le);
1528  if (s->subsampling[i] <= 0) {
1529  av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]);
1530  s->subsampling[i] = 1;
1531  return AVERROR_INVALIDDATA;
1532  }
1533  }
1534  break;
1535  case TIFF_T4OPTIONS:
1536  if (s->compr == TIFF_G3)
1537  s->fax_opts = value;
1538  break;
1539  case TIFF_T6OPTIONS:
1540  if (s->compr == TIFF_G4)
1541  s->fax_opts = value;
1542  break;
1543 #define ADD_METADATA(count, name, sep)\
1544  if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
1545  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
1546  goto end;\
1547  }
1549  ADD_METADATA(count, "ModelPixelScaleTag", NULL);
1550  break;
1552  ADD_METADATA(count, "ModelTransformationTag", NULL);
1553  break;
1554  case TIFF_MODEL_TIEPOINT:
1555  ADD_METADATA(count, "ModelTiepointTag", NULL);
1556  break;
1558  if (s->geotag_count) {
1559  avpriv_request_sample(s->avctx, "Multiple geo key directories");
1560  return AVERROR_INVALIDDATA;
1561  }
1562  ADD_METADATA(1, "GeoTIFF_Version", NULL);
1563  ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
1564  s->geotag_count = ff_tget_short(&s->gb, s->le);
1565  if (s->geotag_count > count / 4 - 1) {
1566  s->geotag_count = count / 4 - 1;
1567  av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
1568  }
1569  if ( bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4
1570  || s->geotag_count == 0) {
1571  s->geotag_count = 0;
1572  return -1;
1573  }
1574  s->geotags = av_calloc(s->geotag_count, sizeof(*s->geotags));
1575  if (!s->geotags) {
1576  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1577  s->geotag_count = 0;
1578  goto end;
1579  }
1580  for (i = 0; i < s->geotag_count; i++) {
1581  s->geotags[i].key = ff_tget_short(&s->gb, s->le);
1582  s->geotags[i].type = ff_tget_short(&s->gb, s->le);
1583  s->geotags[i].count = ff_tget_short(&s->gb, s->le);
1584 
1585  if (!s->geotags[i].type)
1586  s->geotags[i].val = get_geokey_val(s->geotags[i].key, ff_tget_short(&s->gb, s->le));
1587  else
1588  s->geotags[i].offset = ff_tget_short(&s->gb, s->le);
1589  }
1590  break;
1592  if (count >= INT_MAX / sizeof(int64_t))
1593  return AVERROR_INVALIDDATA;
1594  if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
1595  return AVERROR_INVALIDDATA;
1596  dp = av_malloc_array(count, sizeof(double));
1597  if (!dp) {
1598  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1599  goto end;
1600  }
1601  for (i = 0; i < count; i++)
1602  dp[i] = ff_tget_double(&s->gb, s->le);
1603  for (i = 0; i < s->geotag_count; i++) {
1604  if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
1605  if (s->geotags[i].count == 0
1606  || s->geotags[i].offset + s->geotags[i].count > count) {
1607  av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1608  } else if (s->geotags[i].val) {
1609  av_log(s->avctx, AV_LOG_WARNING, "Duplicate GeoTIFF key %d\n", s->geotags[i].key);
1610  } else {
1611  char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
1612  if (!ap) {
1613  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1614  av_freep(&dp);
1615  return AVERROR(ENOMEM);
1616  }
1617  s->geotags[i].val = ap;
1618  }
1619  }
1620  }
1621  av_freep(&dp);
1622  break;
1623  case TIFF_GEO_ASCII_PARAMS:
1624  pos = bytestream2_tell(&s->gb);
1625  for (i = 0; i < s->geotag_count; i++) {
1626  if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
1627  if (s->geotags[i].count == 0
1628  || s->geotags[i].offset + s->geotags[i].count > count) {
1629  av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1630  } else {
1631  char *ap;
1632 
1633  bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
1634  if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
1635  return AVERROR_INVALIDDATA;
1636  if (s->geotags[i].val)
1637  return AVERROR_INVALIDDATA;
1638  ap = av_malloc(s->geotags[i].count);
1639  if (!ap) {
1640  av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1641  return AVERROR(ENOMEM);
1642  }
1643  bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
1644  ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
1645  s->geotags[i].val = ap;
1646  }
1647  }
1648  }
1649  break;
1650  case TIFF_ICC_PROFILE:
1651  gb_temp = s->gb;
1652  bytestream2_seek(&gb_temp, SEEK_SET, off);
1653 
1654  if (bytestream2_get_bytes_left(&gb_temp) < count)
1655  return AVERROR_INVALIDDATA;
1656 
1658  if (!sd)
1659  return AVERROR(ENOMEM);
1660 
1661  bytestream2_get_bufferu(&gb_temp, sd->data, count);
1662  break;
1663  case TIFF_ARTIST:
1664  ADD_METADATA(count, "artist", NULL);
1665  break;
1666  case TIFF_COPYRIGHT:
1667  ADD_METADATA(count, "copyright", NULL);
1668  break;
1669  case TIFF_DATE:
1670  ADD_METADATA(count, "date", NULL);
1671  break;
1672  case TIFF_DOCUMENT_NAME:
1673  ADD_METADATA(count, "document_name", NULL);
1674  break;
1675  case TIFF_HOST_COMPUTER:
1676  ADD_METADATA(count, "computer", NULL);
1677  break;
1679  ADD_METADATA(count, "description", NULL);
1680  break;
1681  case TIFF_MAKE:
1682  ADD_METADATA(count, "make", NULL);
1683  break;
1684  case TIFF_MODEL:
1685  ADD_METADATA(count, "model", NULL);
1686  break;
1687  case TIFF_PAGE_NAME:
1688  ADD_METADATA(count, "page_name", NULL);
1689  break;
1690  case TIFF_PAGE_NUMBER:
1691  ADD_METADATA(count, "page_number", " / ");
1692  // need to seek back to re-read the page number
1693  bytestream2_seek(&s->gb, -count * sizeof(uint16_t), SEEK_CUR);
1694  // read the page number
1695  s->cur_page = ff_tget(&s->gb, TIFF_SHORT, s->le);
1696  // get back to where we were before the previous seek
1697  bytestream2_seek(&s->gb, count * sizeof(uint16_t) - sizeof(uint16_t), SEEK_CUR);
1698  break;
1699  case TIFF_SOFTWARE_NAME:
1700  ADD_METADATA(count, "software", NULL);
1701  break;
1702  case DNG_VERSION:
1703  if (count == 4) {
1704  unsigned int ver[4];
1705  ver[0] = ff_tget(&s->gb, type, s->le);
1706  ver[1] = ff_tget(&s->gb, type, s->le);
1707  ver[2] = ff_tget(&s->gb, type, s->le);
1708  ver[3] = ff_tget(&s->gb, type, s->le);
1709 
1710  av_log(s->avctx, AV_LOG_DEBUG, "DNG file, version %u.%u.%u.%u\n",
1711  ver[0], ver[1], ver[2], ver[3]);
1712 
1714  }
1715  break;
1716  case CINEMADNG_TIME_CODES:
1717  case CINEMADNG_FRAME_RATE:
1718  case CINEMADNG_T_STOP:
1719  case CINEMADNG_REEL_NAME:
1722  break;
1723  default:
1724  if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1725  av_log(s->avctx, AV_LOG_ERROR,
1726  "Unknown or unsupported tag %d/0x%0X\n",
1727  tag, tag);
1728  return AVERROR_INVALIDDATA;
1729  }
1730  }
1731 end:
1732  if (s->bpp > 64U) {
1733  av_log(s->avctx, AV_LOG_ERROR,
1734  "This format is not supported (bpp=%d, %d components)\n",
1735  s->bpp, count);
1736  s->bpp = 0;
1737  return AVERROR_INVALIDDATA;
1738  }
1739  bytestream2_seek(&s->gb, start, SEEK_SET);
1740  return 0;
1741 }
1742 
1743 static int decode_frame(AVCodecContext *avctx, AVFrame *p,
1744  int *got_frame, AVPacket *avpkt)
1745 {
1746  TiffContext *const s = avctx->priv_data;
1747  unsigned off, last_off;
1748  int le, ret, plane, planes;
1749  int i, j, entries, stride;
1750  unsigned soff, ssize;
1751  uint8_t *dst;
1752  GetByteContext stripsizes;
1753  GetByteContext stripdata;
1754  int retry_for_subifd, retry_for_page;
1755  int is_dng;
1756  int has_tile_bits, has_strip_bits;
1757 
1758  bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1759 
1760  // parse image header
1761  if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
1762  av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
1763  return ret;
1764  } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1765  av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1766  return AVERROR_INVALIDDATA;
1767  }
1768  s->le = le;
1769  // TIFF_BPP is not a required tag and defaults to 1
1770 
1771  s->tiff_type = TIFF_TYPE_TIFF;
1772 again:
1773  s->is_thumbnail = 0;
1774  s->bppcount = s->bpp = 1;
1775  s->photometric = TIFF_PHOTOMETRIC_NONE;
1776  s->compr = TIFF_RAW;
1777  s->fill_order = 0;
1778  s->white_level = 0;
1779  s->is_bayer = 0;
1780  s->is_tiled = 0;
1781  s->is_jpeg = 0;
1782  s->cur_page = 0;
1783  s->last_tag = 0;
1784 
1785  for (i = 0; i < 65536; i++)
1786  s->dng_lut[i] = i;
1787 
1788  free_geotags(s);
1789 
1790  // Reset these offsets so we can tell if they were set this frame
1791  s->stripsizesoff = s->strippos = 0;
1792  /* parse image file directory */
1793  bytestream2_seek(&s->gb, off, SEEK_SET);
1794  entries = ff_tget_short(&s->gb, le);
1795  if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1796  return AVERROR_INVALIDDATA;
1797  for (i = 0; i < entries; i++) {
1798  if ((ret = tiff_decode_tag(s, p)) < 0)
1799  return ret;
1800  }
1801 
1802  if (s->get_thumbnail && !s->is_thumbnail) {
1803  av_log(avctx, AV_LOG_INFO, "No embedded thumbnail present\n");
1804  return AVERROR_EOF;
1805  }
1806 
1807  /** whether we should process this IFD's SubIFD */
1808  retry_for_subifd = s->sub_ifd && (s->get_subimage || (!s->get_thumbnail && s->is_thumbnail));
1809  /** whether we should process this multi-page IFD's next page */
1810  retry_for_page = s->get_page && s->cur_page + 1 < s->get_page; // get_page is 1-indexed
1811 
1812  last_off = off;
1813  if (retry_for_page) {
1814  // set offset to the next IFD
1815  off = ff_tget_long(&s->gb, le);
1816  } else if (retry_for_subifd) {
1817  // set offset to the SubIFD
1818  off = s->sub_ifd;
1819  }
1820 
1821  if (retry_for_subifd || retry_for_page) {
1822  if (!off) {
1823  av_log(avctx, AV_LOG_ERROR, "Requested entry not found\n");
1824  return AVERROR_INVALIDDATA;
1825  }
1826  if (off <= last_off) {
1827  avpriv_request_sample(s->avctx, "non increasing IFD offset");
1828  return AVERROR_INVALIDDATA;
1829  }
1830  if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1831  av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1832  return AVERROR_INVALIDDATA;
1833  }
1834  s->sub_ifd = 0;
1835  goto again;
1836  }
1837 
1838  /* At this point we've decided on which (Sub)IFD to process */
1839 
1840  is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
1841 
1842  for (i = 0; i<s->geotag_count; i++) {
1843  const char *keyname = get_geokey_name(s->geotags[i].key);
1844  if (!keyname) {
1845  av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
1846  continue;
1847  }
1848  if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
1849  av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
1850  continue;
1851  }
1852  ret = av_dict_set(&p->metadata, keyname, s->geotags[i].val, 0);
1853  if (ret<0) {
1854  av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
1855  return ret;
1856  }
1857  }
1858 
1859  if (is_dng) {
1860  int bps;
1861 
1862  if (s->bpp % s->bppcount)
1863  return AVERROR_INVALIDDATA;
1864  bps = s->bpp / s->bppcount;
1865  if (bps < 8 || bps > 32)
1866  return AVERROR_INVALIDDATA;
1867 
1868  if (s->white_level == 0)
1869  s->white_level = (1LL << bps) - 1; /* Default value as per the spec */
1870 
1871  if (s->white_level <= s->black_level) {
1872  av_log(avctx, AV_LOG_ERROR, "BlackLevel (%"PRId32") must be less than WhiteLevel (%"PRId32")\n",
1873  s->black_level, s->white_level);
1874  return AVERROR_INVALIDDATA;
1875  }
1876 
1877  if (s->planar)
1878  return AVERROR_PATCHWELCOME;
1879  }
1880 
1881  if (!s->is_tiled && !s->strippos && !s->stripoff) {
1882  av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
1883  return AVERROR_INVALIDDATA;
1884  }
1885 
1886  has_tile_bits = s->is_tiled || s->tile_byte_counts_offset || s->tile_offsets_offset || s->tile_width || s->tile_length || s->tile_count;
1887  has_strip_bits = s->strippos || s->strips || s->stripoff || s->rps || s->sot || s->sstype || s->stripsize || s->stripsizesoff;
1888 
1889  if (has_tile_bits && has_strip_bits) {
1890  int tiled_dng = s->is_tiled && is_dng;
1891  av_log(avctx, tiled_dng ? AV_LOG_WARNING : AV_LOG_ERROR, "Tiled TIFF is not allowed to strip\n");
1892  if (!tiled_dng)
1893  return AVERROR_INVALIDDATA;
1894  }
1895 
1896  /* now we have the data and may start decoding */
1897  if ((ret = init_image(s, p)) < 0)
1898  return ret;
1899 
1900  if (!s->is_tiled || has_strip_bits) {
1901  if (s->strips == 1 && !s->stripsize) {
1902  av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
1903  s->stripsize = avpkt->size - s->stripoff;
1904  }
1905 
1906  if (s->stripsizesoff) {
1907  if (s->stripsizesoff >= (unsigned)avpkt->size)
1908  return AVERROR_INVALIDDATA;
1909  bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
1910  avpkt->size - s->stripsizesoff);
1911  }
1912  if (s->strippos) {
1913  if (s->strippos >= (unsigned)avpkt->size)
1914  return AVERROR_INVALIDDATA;
1915  bytestream2_init(&stripdata, avpkt->data + s->strippos,
1916  avpkt->size - s->strippos);
1917  }
1918 
1919  if (s->rps <= 0 || s->rps % s->subsampling[1]) {
1920  av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1921  return AVERROR_INVALIDDATA;
1922  }
1923  }
1924 
1925  if (s->photometric == TIFF_PHOTOMETRIC_LINEAR_RAW ||
1926  s->photometric == TIFF_PHOTOMETRIC_CFA) {
1928  } else if (s->photometric == TIFF_PHOTOMETRIC_BLACK_IS_ZERO) {
1930  }
1931 
1932  /* Handle DNG images with JPEG-compressed tiles */
1933 
1934  if (is_dng && s->is_tiled) {
1935  if (!s->is_jpeg) {
1936  avpriv_report_missing_feature(avctx, "DNG uncompressed tiled images");
1937  return AVERROR_PATCHWELCOME;
1938  } else if (!s->is_bayer) {
1939  avpriv_report_missing_feature(avctx, "DNG JPG-compressed tiled non-bayer-encoded images");
1940  return AVERROR_PATCHWELCOME;
1941  } else {
1942  if ((ret = dng_decode_tiles(avctx, p, avpkt)) > 0)
1943  *got_frame = 1;
1944  return ret;
1945  }
1946  }
1947 
1948  /* Handle TIFF images and DNG images with uncompressed strips (non-tiled) */
1949 
1950  planes = s->planar ? s->bppcount : 1;
1951  for (plane = 0; plane < planes; plane++) {
1952  uint8_t *five_planes = NULL;
1953  int remaining = avpkt->size;
1954  int decoded_height;
1955  stride = p->linesize[plane];
1956  dst = p->data[plane];
1957  if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
1958  s->avctx->pix_fmt == AV_PIX_FMT_RGBA) {
1959  stride = stride * 5 / 4;
1960  five_planes =
1961  dst = av_malloc(stride * s->height);
1962  if (!dst)
1963  return AVERROR(ENOMEM);
1964  }
1965  for (i = 0; i < s->height; i += s->rps) {
1966  if (i)
1967  dst += s->rps * stride;
1968  if (s->stripsizesoff)
1969  ssize = ff_tget(&stripsizes, s->sstype, le);
1970  else
1971  ssize = s->stripsize;
1972 
1973  if (s->strippos)
1974  soff = ff_tget(&stripdata, s->sot, le);
1975  else
1976  soff = s->stripoff;
1977 
1978  if (soff > avpkt->size || ssize > avpkt->size - soff || ssize > remaining) {
1979  av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
1980  av_freep(&five_planes);
1981  return AVERROR_INVALIDDATA;
1982  }
1983  remaining -= ssize;
1984  if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i,
1985  FFMIN(s->rps, s->height - i))) < 0) {
1986  if (avctx->err_recognition & AV_EF_EXPLODE) {
1987  av_freep(&five_planes);
1988  return ret;
1989  }
1990  break;
1991  }
1992  }
1993  decoded_height = FFMIN(i, s->height);
1994 
1995  if (s->predictor == 2) {
1996  if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1997  av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported");
1998  return AVERROR_PATCHWELCOME;
1999  }
2000  dst = five_planes ? five_planes : p->data[plane];
2001  soff = s->bpp >> 3;
2002  if (s->planar)
2003  soff = FFMAX(soff / s->bppcount, 1);
2004  ssize = s->width * soff;
2005  if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
2006  s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
2007  s->avctx->pix_fmt == AV_PIX_FMT_GRAY16LE ||
2008  s->avctx->pix_fmt == AV_PIX_FMT_YA16LE ||
2009  s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
2010  s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
2011  for (i = 0; i < decoded_height; i++) {
2012  for (j = soff; j < ssize; j += 2)
2013  AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
2014  dst += stride;
2015  }
2016  } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
2017  s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
2018  s->avctx->pix_fmt == AV_PIX_FMT_GRAY16BE ||
2019  s->avctx->pix_fmt == AV_PIX_FMT_YA16BE ||
2020  s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
2021  s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
2022  for (i = 0; i < decoded_height; i++) {
2023  for (j = soff; j < ssize; j += 2)
2024  AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
2025  dst += stride;
2026  }
2027  } else {
2028  for (i = 0; i < decoded_height; i++) {
2029  for (j = soff; j < ssize; j++)
2030  dst[j] += dst[j - soff];
2031  dst += stride;
2032  }
2033  }
2034  }
2035 
2036  if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) {
2037  int c = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255);
2038  dst = p->data[plane];
2039  for (i = 0; i < s->height; i++) {
2040  for (j = 0; j < stride; j++)
2041  dst[j] = c - dst[j];
2042  dst += stride;
2043  }
2044  }
2045 
2046  if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2047  (s->avctx->pix_fmt == AV_PIX_FMT_RGB0 || s->avctx->pix_fmt == AV_PIX_FMT_RGBA)) {
2048  int x = s->avctx->pix_fmt == AV_PIX_FMT_RGB0 ? 4 : 5;
2049  uint8_t *src = five_planes ? five_planes : p->data[plane];
2050  dst = p->data[plane];
2051  for (i = 0; i < s->height; i++) {
2052  for (j = 0; j < s->width; j++) {
2053  int k = 255 - src[x * j + 3];
2054  int r = (255 - src[x * j ]) * k;
2055  int g = (255 - src[x * j + 1]) * k;
2056  int b = (255 - src[x * j + 2]) * k;
2057  dst[4 * j ] = r * 257 >> 16;
2058  dst[4 * j + 1] = g * 257 >> 16;
2059  dst[4 * j + 2] = b * 257 >> 16;
2060  dst[4 * j + 3] = s->avctx->pix_fmt == AV_PIX_FMT_RGBA ? src[x * j + 4] : 255;
2061  }
2062  src += stride;
2063  dst += p->linesize[plane];
2064  }
2065  av_freep(&five_planes);
2066  } else if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2067  s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) {
2068  dst = p->data[plane];
2069  for (i = 0; i < s->height; i++) {
2070  for (j = 0; j < s->width; j++) {
2071  uint64_t k = 65535 - AV_RB16(dst + 8 * j + 6);
2072  uint64_t r = (65535 - AV_RB16(dst + 8 * j )) * k;
2073  uint64_t g = (65535 - AV_RB16(dst + 8 * j + 2)) * k;
2074  uint64_t b = (65535 - AV_RB16(dst + 8 * j + 4)) * k;
2075  AV_WB16(dst + 8 * j , r * 65537 >> 32);
2076  AV_WB16(dst + 8 * j + 2, g * 65537 >> 32);
2077  AV_WB16(dst + 8 * j + 4, b * 65537 >> 32);
2078  AV_WB16(dst + 8 * j + 6, 65535);
2079  }
2080  dst += p->linesize[plane];
2081  }
2082  }
2083  }
2084 
2085  if (s->planar && s->bppcount > 2) {
2086  FFSWAP(uint8_t*, p->data[0], p->data[2]);
2087  FFSWAP(int, p->linesize[0], p->linesize[2]);
2088  FFSWAP(uint8_t*, p->data[0], p->data[1]);
2089  FFSWAP(int, p->linesize[0], p->linesize[1]);
2090  }
2091 
2092  if (s->is_bayer && s->white_level && s->bpp == 16 && !is_dng) {
2093  uint16_t *dst = (uint16_t *)p->data[0];
2094  for (i = 0; i < s->height; i++) {
2095  for (j = 0; j < s->width; j++)
2096  dst[j] = FFMIN((dst[j] / (float)s->white_level) * 65535, 65535);
2097  dst += stride / 2;
2098  }
2099  }
2100 
2101  *got_frame = 1;
2102 
2103  return avpkt->size;
2104 }
2105 
2107 {
2108  TiffContext *s = avctx->priv_data;
2109  const AVCodec *codec;
2110  int ret;
2111 
2112  s->width = 0;
2113  s->height = 0;
2114  s->subsampling[0] =
2115  s->subsampling[1] = 1;
2116  s->avctx = avctx;
2117  ff_lzw_decode_open(&s->lzw);
2118  if (!s->lzw)
2119  return AVERROR(ENOMEM);
2121 
2122  /* Allocate JPEG frame */
2123  s->jpgframe = av_frame_alloc();
2124  s->jpkt = av_packet_alloc();
2125  if (!s->jpgframe || !s->jpkt)
2126  return AVERROR(ENOMEM);
2127 
2128  /* Prepare everything needed for JPEG decoding */
2130  if (!codec)
2131  return AVERROR_BUG;
2132  s->avctx_mjpeg = avcodec_alloc_context3(codec);
2133  if (!s->avctx_mjpeg)
2134  return AVERROR(ENOMEM);
2135  s->avctx_mjpeg->flags = avctx->flags;
2136  s->avctx_mjpeg->flags2 = avctx->flags2;
2137  s->avctx_mjpeg->dct_algo = avctx->dct_algo;
2138  s->avctx_mjpeg->idct_algo = avctx->idct_algo;
2139  s->avctx_mjpeg->max_pixels = avctx->max_pixels;
2140  ret = avcodec_open2(s->avctx_mjpeg, codec, NULL);
2141  if (ret < 0) {
2142  return ret;
2143  }
2144 
2145  return 0;
2146 }
2147 
2148 static av_cold int tiff_end(AVCodecContext *avctx)
2149 {
2150  TiffContext *const s = avctx->priv_data;
2151 
2152  free_geotags(s);
2153 
2154  ff_lzw_decode_close(&s->lzw);
2155  av_freep(&s->deinvert_buf);
2156  s->deinvert_buf_size = 0;
2157  av_freep(&s->yuv_line);
2158  s->yuv_line_size = 0;
2159  av_frame_free(&s->jpgframe);
2160  av_packet_free(&s->jpkt);
2161  avcodec_free_context(&s->avctx_mjpeg);
2162  return 0;
2163 }
2164 
2165 #define OFFSET(x) offsetof(TiffContext, x)
2166 static const AVOption tiff_options[] = {
2167  { "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 },
2168  { "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 },
2169  { "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 },
2170  { NULL },
2171 };
2172 
2173 static const AVClass tiff_decoder_class = {
2174  .class_name = "TIFF decoder",
2175  .item_name = av_default_item_name,
2176  .option = tiff_options,
2177  .version = LIBAVUTIL_VERSION_INT,
2178 };
2179 
2181  .p.name = "tiff",
2182  .p.long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
2183  .p.type = AVMEDIA_TYPE_VIDEO,
2184  .p.id = AV_CODEC_ID_TIFF,
2185  .priv_data_size = sizeof(TiffContext),
2186  .init = tiff_init,
2187  .close = tiff_end,
2189  .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
2191  .p.priv_class = &tiff_decoder_class,
2192 };
TiffContext::tiff_type
enum TiffType tiff_type
Definition: tiff.c:70
AVFrame::color_trc
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:582
av_packet_unref
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:422
ff_tadd_string_metadata
int ff_tadd_string_metadata(int count, const char *name, GetByteContext *gb, int le, AVDictionary **metadata)
Adds a string of count characters into the metadata dictionary.
Definition: tiff_common.c:208
TiffContext::gb
GetByteContext gb
Definition: tiff.c:59
AVCodec
AVCodec.
Definition: codec.h:196
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
TIFF_GEOG_LINEAR_UNITS_GEOKEY
@ TIFF_GEOG_LINEAR_UNITS_GEOKEY
Definition: tiff.h:142
name
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default minimum maximum flags name is the option name
Definition: writing_filters.txt:88
ff_tiff_decoder
const FFCodec ff_tiff_decoder
Definition: tiff.c:2180
bytestream2_get_eof
static av_always_inline unsigned int bytestream2_get_eof(PutByteContext *p)
Definition: bytestream.h:332
FF_CODEC_CAP_INIT_CLEANUP
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: codec_internal.h:39
r
const char * r
Definition: vf_curves.c:116
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
opt.h
AV_PIX_FMT_YA8
@ AV_PIX_FMT_YA8
8 bits gray, 8 bits alpha
Definition: pixfmt.h:133
get_geokey_type
static int get_geokey_type(int key)
Definition: tiff.c:149
AV_OPT_FLAG_VIDEO_PARAM
#define AV_OPT_FLAG_VIDEO_PARAM
Definition: opt.h:284
tiff_decode_tag
static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
Definition: tiff.c:1213
elements
static const ElemCat * elements[ELEMENT_COUNT]
Definition: signature.h:566
TIFF_PHOTOMETRIC_ICC_LAB
@ TIFF_PHOTOMETRIC_ICC_LAB
Definition: tiff.h:193
TIFF_JPEG
@ TIFF_JPEG
Definition: tiff.h:126
av_frame_new_side_data
AVFrameSideData * av_frame_new_side_data(AVFrame *frame, enum AVFrameSideDataType type, size_t size)
Add a new side data to a frame.
Definition: frame.c:672
GetByteContext
Definition: bytestream.h:33
AV_PIX_FMT_GBRP16BE
@ AV_PIX_FMT_GBRP16BE
planar GBR 4:4:4 48bpp, big-endian
Definition: pixfmt.h:164
get_geokey_val
static char * get_geokey_val(int key, int val)
Definition: tiff.c:173
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2662
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition: error.h:57
TiffContext::dng_lut
uint16_t dng_lut[65536]
Definition: tiff.c:91
AVCOL_TRC_LINEAR
@ AVCOL_TRC_LINEAR
"Linear transfer characteristics"
Definition: pixfmt.h:505
dng_process_color16
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
TiffContext::strippos
int strippos
Definition: tiff.c:98
TIFF_CFA_PATTERN_DIM
@ TIFF_CFA_PATTERN_DIM
Definition: tiff.h:89
TIFF_PROJ_COORD_TRANS_GEOKEY
@ TIFF_PROJ_COORD_TRANS_GEOKEY
Definition: tiff.h:155
OFFSET
#define OFFSET(x)
Definition: tiff.c:2165
AVCodecContext::err_recognition
int err_recognition
Error recognition; may misdetect some more or less valid parts as errors.
Definition: avcodec.h:1344
TiffContext::sot
int sot
Definition: tiff.c:97
doubles2str
static char * doubles2str(double *dp, int count, const char *sep)
Definition: tiff.c:241
tiff_projection_codes
static const TiffGeoTagKeyName tiff_projection_codes[]
Definition: tiff_data.h:1517
TIFF_CCITT_RLE
@ TIFF_CCITT_RLE
Definition: tiff.h:122
TIFF_GEOG_AZIMUTH_UNITS_GEOKEY
@ TIFF_GEOG_AZIMUTH_UNITS_GEOKEY
Definition: tiff.h:150
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:111
mjpegdec.h
bytestream2_seek
static av_always_inline int bytestream2_seek(GetByteContext *g, int offset, int whence)
Definition: bytestream.h:212
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:325
AV_PIX_FMT_RGBA64BE
@ AV_PIX_FMT_RGBA64BE
packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is st...
Definition: pixfmt.h:195
tiff_end
static av_cold int tiff_end(AVCodecContext *avctx)
Definition: tiff.c:2148
w
uint8_t w
Definition: llviddspenc.c:38
TiffContext::tile_offsets_offset
int tile_offsets_offset
Definition: tiff.c:103
TIFF_ADOBE_DEFLATE
@ TIFF_ADOBE_DEFLATE
Definition: tiff.h:128
internal.h
TIFF_COPYRIGHT
@ TIFF_COPYRIGHT
Definition: tiff.h:91
AVPacket::data
uint8_t * data
Definition: packet.h:374
TIFF_PHOTOMETRIC_ITU_LAB
@ TIFF_PHOTOMETRIC_ITU_LAB
Definition: tiff.h:194
AVOption
AVOption.
Definition: opt.h:251
TIFF_LONG
@ TIFF_LONG
Definition: tiff_common.h:40
b
#define b
Definition: input.c:34
ff_reverse
const uint8_t ff_reverse[256]
Definition: reverse.c:23
RET_GEOKEY_VAL
#define RET_GEOKEY_VAL(TYPE, array)
TIFF_NEWJPEG
@ TIFF_NEWJPEG
Definition: tiff.h:127
FFCodec
Definition: codec_internal.h:112
deinvert_buffer
static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
Definition: tiff.c:429
reverse.h
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
ff_lzw_decode
int ff_lzw_decode(LZWState *p, uint8_t *buf, int len)
Decode given number of bytes NOTE: the algorithm here is inspired from the LZW GIF decoder written by...
Definition: lzw.c:169
TIFF_ROWSPERSTRIP
@ TIFF_ROWSPERSTRIP
Definition: tiff.h:61
TiffContext::pattern
uint8_t pattern[4]
Definition: tiff.c:88
TIFF_GEOG_ELLIPSOID_GEOKEY
@ TIFF_GEOG_ELLIPSOID_GEOKEY
Definition: tiff.h:146
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
TIFF_GEO_KEY_USER_DEFINED
#define TIFF_GEO_KEY_USER_DEFINED
Definition: tiff_data.h:97
TIFF_PROJECTION_GEOKEY
@ TIFF_PROJECTION_GEOKEY
Definition: tiff.h:154
TIFF_PROJ_LINEAR_UNITS_GEOKEY
@ TIFF_PROJ_LINEAR_UNITS_GEOKEY
Definition: tiff.h:156
TIFF_RAW
@ TIFF_RAW
Definition: tiff.h:121
ff_lzw_decode_close
av_cold void ff_lzw_decode_close(LZWState **p)
Definition: lzw.c:118
AVERROR_UNKNOWN
#define AVERROR_UNKNOWN
Unknown error, typically from an external library.
Definition: error.h:73
av_clip_uint16_c
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:227
TIFF_GEO_DOUBLE_PARAMS
@ TIFF_GEO_DOUBLE_PARAMS
Definition: tiff.h:97
AV_PIX_FMT_BAYER_GRBG16
#define AV_PIX_FMT_BAYER_GRBG16
Definition: pixfmt.h:433
TiffGeoTagKeyName
Definition: tiff.h:215
TIFF_PHOTOMETRIC_WHITE_IS_ZERO
@ TIFF_PHOTOMETRIC_WHITE_IS_ZERO
Definition: tiff.h:185
thread.h
TIFF_PACKBITS
@ TIFF_PACKBITS
Definition: tiff.h:129
TIFF_GEOG_PRIME_MERIDIAN_GEOKEY
@ TIFF_GEOG_PRIME_MERIDIAN_GEOKEY
Definition: tiff.h:141
av_packet_free
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:73
TiffContext::is_jpeg
int is_jpeg
Definition: tiff.c:107
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:346
av_malloc
#define av_malloc(s)
Definition: tableprint_vlc.h:30
TIFF_GEO_KEY_UNDEFINED
#define TIFF_GEO_KEY_UNDEFINED
Definition: tiff_data.h:96
tiff_options
static const AVOption tiff_options[]
Definition: tiff.c:2166
TiffContext::get_thumbnail
int get_thumbnail
Definition: tiff.c:68
TIFF_PHOTOMETRIC_LINEAR_RAW
@ TIFF_PHOTOMETRIC_LINEAR_RAW
Definition: tiff.h:198
TIFF_FILL_ORDER
@ TIFF_FILL_ORDER
Definition: tiff.h:54
init
static int init
Definition: av_tx.c:47
TIFF_PHOTOMETRIC_ALPHA_MASK
@ TIFF_PHOTOMETRIC_ALPHA_MASK
Definition: tiff.h:189
TiffContext::deinvert_buf_size
int deinvert_buf_size
Definition: tiff.c:110
AV_PIX_FMT_GRAY16BE
@ AV_PIX_FMT_GRAY16BE
Y , 16bpp, big-endian.
Definition: pixfmt.h:97
bytestream2_skip
static av_always_inline void bytestream2_skip(GetByteContext *g, unsigned int size)
Definition: bytestream.h:168
TIFF_DATE
@ TIFF_DATE
Definition: tiff.h:74
get_bits
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:380
TIFF_TILE_BYTE_COUNTS
@ TIFF_TILE_BYTE_COUNTS
Definition: tiff.h:82
ff_ccitt_unpack
int ff_ccitt_unpack(AVCodecContext *avctx, const uint8_t *src, int srcsize, uint8_t *dst, int height, int stride, enum TiffCompr compr, int opts)
unpack data compressed with CCITT Group 3 1/2-D or Group 4 method
Definition: faxcompr.c:396
FFCodec::p
AVCodec p
The public AVCodec.
Definition: codec_internal.h:116
unpack_yuv
static void unpack_yuv(TiffContext *s, AVFrame *p, const uint8_t *src, int lnum)
Definition: tiff.c:455
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:205
tiff_set_type
static void tiff_set_type(TiffContext *s, enum TiffType tiff_type)
Definition: tiff.c:118
U
#define U(x)
Definition: vp56_arith.h:37
dng_decode_tiles
static int dng_decode_tiles(AVCodecContext *avctx, AVFrame *frame, const AVPacket *avpkt)
Definition: tiff.c:951
inflate
static void inflate(uint8_t *dst, const uint8_t *p1, int width, int threshold, const uint8_t *coordinates[], int coord, int maxc)
Definition: vf_neighbor.c:195
TIFF_YCBCR_SUBSAMPLING
@ TIFF_YCBCR_SUBSAMPLING
Definition: tiff.h:86
TIFF_MAKE
@ TIFF_MAKE
Definition: tiff.h:57
GetBitContext
Definition: get_bits.h:62
ff_thread_get_buffer
the pkt_dts and pkt_pts fields in AVFrame will work as usual Restrictions on codec whose streams don t reset across will not work because their bitstreams cannot be decoded in parallel *The contents of buffers must not be read before as well as code calling up to before the decode process starts Call have so the codec calls ff_thread_report set FF_CODEC_CAP_ALLOCATE_PROGRESS in AVCodec caps_internal and use ff_thread_get_buffer() to allocate frames. The frames must then be freed with ff_thread_release_buffer(). Otherwise decode directly into the user-supplied frames. Call ff_thread_report_progress() after some part of the current picture has decoded. A good place to put this is where draw_horiz_band() is called - add this if it isn 't called anywhere
TIFF_GEOG_GEODETIC_DATUM_GEOKEY
@ TIFF_GEOG_GEODETIC_DATUM_GEOKEY
Definition: tiff.h:140
TiffContext::deinvert_buf
uint8_t * deinvert_buf
Definition: tiff.c:109
TiffContext::tile_length
int tile_length
Definition: tiff.c:104
AVCodecContext::flags
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:469
TIFF_T6OPTIONS
@ TIFF_T6OPTIONS
Definition: tiff.h:70
val
static double val(void *priv, double ch)
Definition: aeval.c:77
horizontal_fill
static void av_always_inline horizontal_fill(TiffContext *s, unsigned int bpp, uint8_t *dst, int usePtr, const uint8_t *src, uint8_t c, int width, int offset)
Definition: tiff.c:374
type
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
Definition: writing_filters.txt:86
AVCodecContext::dct_algo
int dct_algo
DCT algorithm, see FF_DCT_* below.
Definition: avcodec.h:1404
TIFF_VERTICAL_CS_TYPE_GEOKEY
@ TIFF_VERTICAL_CS_TYPE_GEOKEY
Definition: tiff.h:176
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:390
TIFF_SOFTWARE_NAME
@ TIFF_SOFTWARE_NAME
Definition: tiff.h:73
FF_LZW_TIFF
@ FF_LZW_TIFF
Definition: lzw.h:39
av_reduce
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
AVCOL_TRC_GAMMA22
@ AVCOL_TRC_GAMMA22
also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:501
TiffContext::geotags
TiffGeoTag * geotags
Definition: tiff.c:115
DNG_LINEARIZATION_TABLE
@ DNG_LINEARIZATION_TABLE
Definition: tiff.h:105
av_frame_alloc
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:99
TIFF_SHORT
@ TIFF_SHORT
Definition: tiff_common.h:39
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
TiffGeoTag
Definition: tiff.h:207
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen.c:29
av_cold
#define av_cold
Definition: attributes.h:90
TiffContext::rps
int rps
Definition: tiff.c:96
init_get_bits8
static int init_get_bits8(GetBitContext *s, const uint8_t *buffer, int byte_size)
Initialize GetBitContext.
Definition: get_bits.h:678
TIFF_SUBFILE
@ TIFF_SUBFILE
Definition: tiff.h:48
CINEMADNG_T_STOP
@ CINEMADNG_T_STOP
Definition: tiff.h:114
bytestream2_init_writer
static av_always_inline void bytestream2_init_writer(PutByteContext *p, uint8_t *buf, int buf_size)
Definition: bytestream.h:147
float
float
Definition: af_crystalizer.c:122
AV_PIX_FMT_GBRAP16BE
@ AV_PIX_FMT_GBRAP16BE
planar GBRA 4:4:4:4 64bpp, big-endian
Definition: pixfmt.h:206
TiffContext::stripsize
int stripsize
Definition: tiff.c:98
avcodec_alloc_context3
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
Definition: options.c:149
width
#define width
FF_CODEC_DECODE_CB
#define FF_CODEC_DECODE_CB(func)
Definition: codec_internal.h:254
tiff_proj_cs_type_codes
static const TiffGeoTagKeyName tiff_proj_cs_type_codes[]
Definition: tiff_data.h:536
intreadwrite.h
TIFF_G4
@ TIFF_G4
Definition: tiff.h:124
s
#define s(width, name)
Definition: cbs_vp9.c:256
AV_PIX_FMT_GBRP16LE
@ AV_PIX_FMT_GBRP16LE
planar GBR 4:4:4 48bpp, little-endian
Definition: pixfmt.h:165
TiffContext::width
int width
Definition: tiff.c:71
AV_PIX_FMT_BAYER_BGGR8
@ AV_PIX_FMT_BAYER_BGGR8
bayer, BGBG..(odd line), GRGR..(even line), 8-bit samples
Definition: pixfmt.h:250
g
const char * g
Definition: vf_curves.c:117
TiffType
TiffType
TIFF types in ascenting priority (last in the list is highest)
Definition: tiff.h:37
ff_lzw_decode_open
av_cold void ff_lzw_decode_open(LZWState **p)
Definition: lzw.c:113
TIFF_STRIP_SIZE
@ TIFF_STRIP_SIZE
Definition: tiff.h:62
avcodec_receive_frame
int avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
Return decoded output data from a decoder.
Definition: decode.c:639
TiffContext::yuv_line
uint8_t * yuv_line
Definition: tiff.c:111
TIFF_GEOGRAPHIC_TYPE_GEOKEY
@ TIFF_GEOGRAPHIC_TYPE_GEOKEY
Definition: tiff.h:138
dng_decode_jpeg
static int dng_decode_jpeg(AVCodecContext *avctx, AVFrame *frame, int tile_byte_count, int dst_x, int dst_y, int w, int h)
Definition: tiff.c:636
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
TIFF_STRING
@ TIFF_STRING
Definition: tiff_common.h:38
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:201
TIFF_PHOTOMETRIC_LOG_L
@ TIFF_PHOTOMETRIC_LOG_L
Definition: tiff.h:196
TiffContext::black_level
unsigned black_level
Definition: tiff.c:89
ff_tadd_shorts_metadata
int ff_tadd_shorts_metadata(int count, const char *name, const char *sep, GetByteContext *gb, int le, int is_signed, AVDictionary **metadata)
Adds count shorts converted to a string into the metadata dictionary.
Definition: tiff_common.c:165
get_bits.h
AV_RL16
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_RL16
Definition: bytestream.h:94
TiffContext::get_page
uint16_t get_page
Definition: tiff.c:67
LZWState
Definition: lzw.c:46
TIFF_IMAGE_DESCRIPTION
@ TIFF_IMAGE_DESCRIPTION
Definition: tiff.h:56
AVCodecContext::max_pixels
int64_t max_pixels
The number of pixels per image to maximally accept.
Definition: avcodec.h:1908
TiffContext::is_bayer
int is_bayer
Definition: tiff.c:87
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
key
const char * key
Definition: hwcontext_opencl.c:174
TiffContext::jpgframe
AVFrame * jpgframe
Definition: tiff.c:64
TiffContext::compr
enum TiffCompr compr
Definition: tiff.c:76
TiffContext::photometric
enum TiffPhotometric photometric
Definition: tiff.c:77
AV_PIX_FMT_RGBA
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:93
search_keyval
static const char * search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
Definition: tiff.c:164
AV_PIX_FMT_BAYER_RGGB8
@ AV_PIX_FMT_BAYER_RGGB8
bayer, RGRG..(odd line), GBGB..(even line), 8-bit samples
Definition: pixfmt.h:251
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:64
AV_PIX_FMT_BAYER_BGGR16
#define AV_PIX_FMT_BAYER_BGGR16
Definition: pixfmt.h:430
if
if(ret)
Definition: filter_design.txt:179
ff_ccitt_unpack_init
av_cold void ff_ccitt_unpack_init(void)
initialize unpacker code
Definition: faxcompr.c:122
TiffContext::geotag_count
int geotag_count
Definition: tiff.c:114
TiffContext::height
int height
Definition: tiff.c:71
TIFF_PAGE_NAME
@ TIFF_PAGE_NAME
Definition: tiff.h:66
TIFF_VERTICAL_UNITS_GEOKEY
@ TIFF_VERTICAL_UNITS_GEOKEY
Definition: tiff.h:179
AV_CODEC_CAP_FRAME_THREADS
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: codec.h:113
TIFF_LZW
@ TIFF_LZW
Definition: tiff.h:125
tiff_init
static av_cold int tiff_init(AVCodecContext *avctx)
Definition: tiff.c:2106
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
ff_tget_short
unsigned ff_tget_short(GetByteContext *gb, int le)
Reads a short from the bytestream using given endianness.
Definition: tiff_common.c:44
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
NULL
#define NULL
Definition: coverity.c:32
AVERROR_PATCHWELCOME
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:64
TIFF_PHOTOMETRIC_YCBCR
@ TIFF_PHOTOMETRIC_YCBCR
Definition: tiff.h:191
TiffContext
Definition: tiff.c:56
AV_WB16
#define AV_WB16(p, v)
Definition: intreadwrite.h:405
TiffContext::is_thumbnail
int is_thumbnail
Definition: tiff.c:84
tiff_data.h
TiffContext::avctx
AVCodecContext * avctx
Definition: tiff.c:58
avcodec_free_context
void avcodec_free_context(AVCodecContext **avctx)
Free the codec context and everything associated with it and write NULL to the provided pointer.
Definition: options.c:164
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
AV_PIX_FMT_RGB48LE
@ AV_PIX_FMT_RGB48LE
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as lit...
Definition: pixfmt.h:103
AV_PIX_FMT_YA16LE
@ AV_PIX_FMT_YA16LE
16 bits gray, 16 bits alpha (little-endian)
Definition: pixfmt.h:203
AV_PIX_FMT_MONOBLACK
@ AV_PIX_FMT_MONOBLACK
Y , 1bpp, 0 is black, 1 is white, in each byte pixels are ordered from the msb to the lsb.
Definition: pixfmt.h:76
tiff.h
TIFF_PHOTOMETRIC_PALETTE
@ TIFF_PHOTOMETRIC_PALETTE
Definition: tiff.h:188
TiffContext::get_subimage
int get_subimage
Definition: tiff.c:66
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:237
AV_PIX_FMT_RGBA64LE
@ AV_PIX_FMT_RGBA64LE
packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is st...
Definition: pixfmt.h:196
AV_PICTURE_TYPE_I
@ AV_PICTURE_TYPE_I
Intra.
Definition: avutil.h:274
TIFF_MODEL_TIEPOINT
@ TIFF_MODEL_TIEPOINT
Definition: tiff.h:92
TIFF_PHOTOMETRIC_CIE_LAB
@ TIFF_PHOTOMETRIC_CIE_LAB
Definition: tiff.h:192
AV_FRAME_DATA_ICC_PROFILE
@ AV_FRAME_DATA_ICC_PROFILE
The data contains an ICC profile as an opaque octet buffer following the format described by ISO 1507...
Definition: frame.h:144
mathops.h
AV_PIX_FMT_BAYER_GBRG16
#define AV_PIX_FMT_BAYER_GBRG16
Definition: pixfmt.h:432
MJpegDecodeContext
Definition: mjpegdec.h:54
TIFF_PAL
@ TIFF_PAL
Definition: tiff.h:78
avcodec_open2
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: avcodec.c:115
TIFF_BYTE
@ TIFF_BYTE
Definition: tiff_common.h:37
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
TIFF_ARTIST
@ TIFF_ARTIST
Definition: tiff.h:75
AV_EF_EXPLODE
#define AV_EF_EXPLODE
abort decoding on minor error detection
Definition: avcodec.h:1355
CINEMADNG_TIME_CODES
@ CINEMADNG_TIME_CODES
Definition: tiff.h:112
TIFF_SAMPLES_PER_PIXEL
@ TIFF_SAMPLES_PER_PIXEL
Definition: tiff.h:60
TIFF_G3
@ TIFF_G3
Definition: tiff.h:123
TIFF_WIDTH
@ TIFF_WIDTH
Definition: tiff.h:49
TIFF_TILE_OFFSETS
@ TIFF_TILE_OFFSETS
Definition: tiff.h:81
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
bytestream2_get_bytes_left
static av_always_inline int bytestream2_get_bytes_left(GetByteContext *g)
Definition: bytestream.h:158
error.h
TiffContext::palette
uint32_t palette[256]
Definition: tiff.c:73
bytestream2_tell
static av_always_inline int bytestream2_tell(GetByteContext *g)
Definition: bytestream.h:192
avcodec_find_decoder
const AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
Definition: allcodecs.c:933
planes
static const struct @328 planes[]
PutByteContext
Definition: bytestream.h:37
ff_tread_tag
int ff_tread_tag(GetByteContext *gb, int le, unsigned *tag, unsigned *type, unsigned *count, int *next)
Reads the first 3 fields of a TIFF tag, which are the tag id, the tag type and the count of values fo...
Definition: tiff_common.c:253
AVCodecContext::flags2
int flags2
AV_CODEC_FLAG2_*.
Definition: avcodec.h:476
AV_PIX_FMT_RGB24
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:52
AVPacket::size
int size
Definition: packet.h:375
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
TIFF_TYPE_CINEMADNG
@ TIFF_TYPE_CINEMADNG
Digital Negative (DNG) image part of an CinemaDNG image sequence.
Definition: tiff.h:43
codec_internal.h
AV_PIX_FMT_FLAG_RGB
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:136
lzw.h
LZW decoding routines.
av_err2str
#define av_err2str(errnum)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition: error.h:121
for
for(k=2;k<=8;++k)
Definition: h264pred_template.c:425
TIFF_DOUBLE
@ TIFF_DOUBLE
Definition: tiff_common.h:48
bps
unsigned bps
Definition: movenc.c:1647
AV_PIX_FMT_YA16BE
@ AV_PIX_FMT_YA16BE
16 bits gray, 16 bits alpha (big-endian)
Definition: pixfmt.h:202
TIFF_GEO_ASCII_PARAMS
@ TIFF_GEO_ASCII_PARAMS
Definition: tiff.h:98
size
int size
Definition: twinvq_data.h:10344
avpriv_report_missing_feature
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
TiffContext::bpp
unsigned int bpp
Definition: tiff.c:72
AVFrameSideData::data
uint8_t * data
Definition: frame.h:233
TIFF_GT_MODEL_TYPE_GEOKEY
@ TIFF_GT_MODEL_TYPE_GEOKEY
Definition: tiff.h:135
TiffContext::jpkt
AVPacket * jpkt
Definition: tiff.c:63
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:412
TIFF_DOCUMENT_NAME
@ TIFF_DOCUMENT_NAME
Definition: tiff.h:55
TiffContext::fill_order
int fill_order
Definition: tiff.c:82
TIFF_MODEL_TRANSFORMATION
@ TIFF_MODEL_TRANSFORMATION
Definition: tiff.h:94
TIFF_TILE_LENGTH
@ TIFF_TILE_LENGTH
Definition: tiff.h:80
TIFF_MODEL
@ TIFF_MODEL
Definition: tiff.h:58
AV_WL16
#define AV_WL16(p, v)
Definition: intreadwrite.h:412
height
#define height
TiffContext::white_level
unsigned white_level
Definition: tiff.c:90
TiffContext::stripsizesoff
int stripsizesoff
Definition: tiff.c:98
offset
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf offset
Definition: writing_filters.txt:86
line
Definition: graph2dot.c:48
attributes.h
av_packet_alloc
AVPacket * av_packet_alloc(void)
Allocate an AVPacket and set its fields to default values.
Definition: avpacket.c:62
AV_PIX_FMT_RGB0
@ AV_PIX_FMT_RGB0
packed RGB 8:8:8, 32bpp, RGBXRGBX... X=unused/undefined
Definition: pixfmt.h:228
dng_blit
static void av_always_inline dng_blit(TiffContext *s, uint8_t *dst, int dst_stride, const uint8_t *src, int src_stride, int width, int height, int is_single_comp, int is_u16)
Definition: tiff.c:311
TiffContext::planar
int planar
Definition: tiff.c:78
TIFF_COMPR
@ TIFF_COMPR
Definition: tiff.h:52
TIFF_HEIGHT
@ TIFF_HEIGHT
Definition: tiff.h:50
cmp_id_key
static int cmp_id_key(const void *id, const void *k)
Definition: tiff.c:159
AV_LOG_INFO
#define AV_LOG_INFO
Standard information.
Definition: log.h:191
tiff_decoder_class
static const AVClass tiff_decoder_class
Definition: tiff.c:2173
RET_GEOKEY
#define RET_GEOKEY(TYPE, array, element)
Definition: tiff.c:134
DNG_BLACK_LEVEL
@ DNG_BLACK_LEVEL
Definition: tiff.h:106
TIFF_T4OPTIONS
@ TIFF_T4OPTIONS
Definition: tiff.h:69
TIFF_PHOTOMETRIC_LOG_LUV
@ TIFF_PHOTOMETRIC_LOG_LUV
Definition: tiff.h:197
TiffContext::le
int le
Definition: tiff.c:75
AV_CODEC_ID_MJPEG
@ AV_CODEC_ID_MJPEG
Definition: codec_id.h:57
CINEMADNG_REEL_NAME
@ CINEMADNG_REEL_NAME
Definition: tiff.h:115
avcodec_send_packet
int avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
Supply raw packet data as input to a decoder.
Definition: decode.c:576
TiffContext::subsampling
int subsampling[2]
Definition: tiff.c:79
TIFF_PAGE_NUMBER
@ TIFF_PAGE_NUMBER
Definition: tiff.h:72
decode_frame
static int decode_frame(AVCodecContext *avctx, AVFrame *p, int *got_frame, AVPacket *avpkt)
Definition: tiff.c:1743
AV_PIX_FMT_RGB48BE
@ AV_PIX_FMT_RGB48BE
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as big...
Definition: pixfmt.h:102
TIFF_PHOTOMETRIC_CFA
@ TIFF_PHOTOMETRIC_CFA
Definition: tiff.h:195
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
code
and forward the test the status of outputs and forward it to the corresponding return FFERROR_NOT_READY If the filters stores internally one or a few frame for some it can consider them to be part of the FIFO and delay acknowledging a status change accordingly Example code
Definition: filter_design.txt:178
ff_tget_long
unsigned ff_tget_long(GetByteContext *gb, int le)
Reads a long from the bytestream using given endianness.
Definition: tiff_common.c:50
TIFF_PHOTOMETRIC_BLACK_IS_ZERO
@ TIFF_PHOTOMETRIC_BLACK_IS_ZERO
Definition: tiff.h:186
TiffContext::tile_width
int tile_width
Definition: tiff.c:104
TiffContext::fax_opts
int fax_opts
Definition: tiff.c:80
ff_lzw_decode_init
int ff_lzw_decode_init(LZWState *p, int csize, const uint8_t *buf, int buf_size, int mode)
Initialize LZW decoder.
Definition: lzw.c:131
TiffContext::bppcount
unsigned int bppcount
Definition: tiff.c:72
unpack_gray
static void unpack_gray(TiffContext *s, AVFrame *p, const uint8_t *src, int lnum, int width, int bpp)
Definition: tiff.c:442
TiffContext::res
uint32_t res[4]
Definition: tiff.c:83
TIFF_MODEL_PIXEL_SCALE
@ TIFF_MODEL_PIXEL_SCALE
Definition: tiff.h:93
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:31
TIFF_PLANAR
@ TIFF_PLANAR
Definition: tiff.h:65
TiffContext::tile_count
int tile_count
Definition: tiff.c:105
AV_PIX_FMT_BAYER_GBRG8
@ AV_PIX_FMT_BAYER_GBRG8
bayer, GBGB..(odd line), RGRG..(even line), 8-bit samples
Definition: pixfmt.h:252
TIFF_TYPE_TIFF
@ TIFF_TYPE_TIFF
TIFF image based on the TIFF 6.0 or TIFF/EP (ISO 12234-2) specifications.
Definition: tiff.h:39
av_fast_padded_malloc
void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_malloc but the buffer has additional AV_INPUT_BUFFER_PADDING_SIZE at the end w...
Definition: utils.c:48
av_always_inline
#define av_always_inline
Definition: attributes.h:49
value
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default value
Definition: writing_filters.txt:86
AV_OPT_FLAG_DECODING_PARAM
#define AV_OPT_FLAG_DECODING_PARAM
a generic parameter which can be set by the user for demuxing or decoding
Definition: opt.h:282
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
MJpegDecodeContext::bayer
int bayer
Definition: mjpegdec.h:77
FF_CODEC_CAP_INIT_THREADSAFE
#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: codec_internal.h:31
av_frame_unref
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:477
AVCodecContext::idct_algo
int idct_algo
IDCT algorithm, see FF_IDCT_* below.
Definition: avcodec.h:1417
TIFF_TYPE_DNG
@ TIFF_TYPE_DNG
Digital Negative (DNG) image.
Definition: tiff.h:41
AVCodec::name
const char * name
Name of the codec implementation.
Definition: codec.h:203
DNG_VERSION
@ DNG_VERSION
Definition: tiff.h:103
TiffContext::stripoff
int stripoff
Definition: tiff.c:98
len
int len
Definition: vorbis_enc_data.h:426
TIFF_PHOTOMETRIC_NONE
@ TIFF_PHOTOMETRIC_NONE
Definition: tiff.h:184
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:272
TIFF_CFA_PATTERN
@ TIFF_CFA_PATTERN
Definition: tiff.h:90
TIFF_STRIP_OFFS
@ TIFF_STRIP_OFFS
Definition: tiff.h:59
TIFF_TILE_WIDTH
@ TIFF_TILE_WIDTH
Definition: tiff.h:79
avcodec.h
stride
#define stride
Definition: h264pred_template.c:537
pv
#define pv
Definition: regdef.h:60
AV_PIX_FMT_GBRAP16LE
@ AV_PIX_FMT_GBRAP16LE
planar GBRA 4:4:4:4 64bpp, little-endian
Definition: pixfmt.h:207
AV_PIX_FMT_PAL8
@ AV_PIX_FMT_PAL8
8 bits with AV_PIX_FMT_RGB32 palette
Definition: pixfmt.h:77
tag
uint32_t tag
Definition: movenc.c:1646
ret
ret
Definition: filter_design.txt:187
TIFF_HOST_COMPUTER
@ TIFF_HOST_COMPUTER
Definition: tiff.h:76
DNG_WHITE_LEVEL
@ DNG_WHITE_LEVEL
Definition: tiff.h:107
FFSWAP
#define FFSWAP(type, a, b)
Definition: macros.h:52
AVClass::class_name
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:71
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:264
TiffContext::palette_is_set
int palette_is_set
Definition: tiff.c:74
TIFF_BPP
@ TIFF_BPP
Definition: tiff.h:51
pos
unsigned int pos
Definition: spdifenc.c:412
get_geokey_name
static const char * get_geokey_name(int key)
Definition: tiff.c:139
TIFF_PHOTOMETRIC
@ TIFF_PHOTOMETRIC
Definition: tiff.h:53
AV_RL32
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
Definition: bytestream.h:92
ff_tget_double
double ff_tget_double(GetByteContext *gb, int le)
Reads a double from the bytestream using given endianness.
Definition: tiff_common.c:56
TiffPhotometric
TiffPhotometric
list of TIFF, TIFF/AP and DNG PhotometricInterpretation (TIFF_PHOTOMETRIC) values
Definition: tiff.h:183
TiffContext::last_tag
unsigned last_tag
Definition: tiff.c:85
AVCodecContext
main external API structure.
Definition: avcodec.h:389
ADD_METADATA
#define ADD_METADATA(count, name, sep)
TiffContext::sstype
int sstype
Definition: tiff.c:96
again
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining again
Definition: filter_design.txt:25
TIFF_PREDICTOR
@ TIFF_PREDICTOR
Definition: tiff.h:77
TIFF_RATIONAL
@ TIFF_RATIONAL
Definition: tiff_common.h:41
bytestream2_seek_p
static av_always_inline int bytestream2_seek_p(PutByteContext *p, int offset, int whence)
Definition: bytestream.h:236
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
AVFrame::metadata
AVDictionary * metadata
metadata.
Definition: frame.h:620
TiffContext::lzw
LZWState * lzw
Definition: tiff.c:99
set_sar
static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
Definition: tiff.c:1194
TIFF_LZMA
@ TIFF_LZMA
Definition: tiff.h:131
tiff_unpack_fax
static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride, const uint8_t *src, int size, int width, int lines)
Definition: tiff.c:615
TIFF_GEO_KEY_DIRECTORY
@ TIFF_GEO_KEY_DIRECTORY
Definition: tiff.h:96
CINEMADNG_CAMERA_LABEL
@ CINEMADNG_CAMERA_LABEL
Definition: tiff.h:116
TiffContext::is_tiled
int is_tiled
Definition: tiff.c:102
AV_PIX_FMT_FLAG_PLANAR
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
Definition: pixdesc.h:132
ff_tdecode_header
int ff_tdecode_header(GetByteContext *gb, int *le, int *ifd_offset)
Decodes a TIFF header from the input bytestream and sets the endianness in *le and the offset to the ...
Definition: tiff_common.c:228
TIFF_YRES
@ TIFF_YRES
Definition: tiff.h:64
dng_process_color8
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
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
shift
static int shift(int a, int b)
Definition: sonic.c:88
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
TIFF_ICC_PROFILE
@ TIFF_ICC_PROFILE
Definition: tiff.h:95
faxcompr.h
av_strdup
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:280
desc
const char * desc
Definition: libsvtav1.c:83
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_GRAY16LE
@ AV_PIX_FMT_GRAY16LE
Y , 16bpp, little-endian.
Definition: pixfmt.h:98
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
ff_set_dimensions
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
Definition: utils.c:90
bytestream2_get_bufferu
static av_always_inline unsigned int bytestream2_get_bufferu(GetByteContext *g, uint8_t *dst, unsigned int size)
Definition: bytestream.h:277
init_image
static int init_image(TiffContext *s, AVFrame *frame)
Definition: tiff.c:1021
avpriv_request_sample
#define avpriv_request_sample(...)
Definition: tableprint_vlc.h:36
AVFrameSideData
Structure to hold side data for an AVFrame.
Definition: frame.h:231
free_geotags
static void free_geotags(TiffContext *const s)
Definition: tiff.c:123
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
av_free
#define av_free(p)
Definition: tableprint_vlc.h:33
TIFF_DEFLATE
@ TIFF_DEFLATE
Definition: tiff.h:130
TIFF_PHOTOMETRIC_RGB
@ TIFF_PHOTOMETRIC_RGB
Definition: tiff.h:187
AVCodecContext::priv_data
void * priv_data
Definition: avcodec.h:416
AVPacket
This structure stores compressed data.
Definition: packet.h:351
TIFF_SUB_IFDS
@ TIFF_SUB_IFDS
Definition: tiff.h:83
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:244
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
av_dict_set
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition: dict.c:70
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
tiff_unpack_strip
static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride, const uint8_t *src, int size, int strip_start, int lines)
Definition: tiff.c:726
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
TiffContext::tile_byte_counts_offset
int tile_byte_counts_offset
Definition: tiff.c:103
ff_tadd_doubles_metadata
int ff_tadd_doubles_metadata(int count, const char *name, const char *sep, GetByteContext *gb, int le, AVDictionary **metadata)
Adds count doubles converted to a string into the metadata dictionary.
Definition: tiff_common.c:144
TiffContext::avctx_mjpeg
AVCodecContext * avctx_mjpeg
Definition: tiff.c:62
TIFF_XRES
@ TIFF_XRES
Definition: tiff.h:63
add_metadata
static int add_metadata(int count, int type, const char *name, const char *sep, TiffContext *s, AVFrame *frame)
Definition: tiff.c:267
bytestream.h
imgutils.h
bytestream2_init
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
Definition: bytestream.h:137
AVERROR_BUG
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:52
TiffCompr
TiffCompr
list of TIFF, TIFF/EP and DNG compression types
Definition: tiff.h:120
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition: frame.h:370
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
TIFF_GEOG_ANGULAR_UNITS_GEOKEY
@ TIFF_GEOG_ANGULAR_UNITS_GEOKEY
Definition: tiff.h:144
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:61
TiffContext::cur_page
uint16_t cur_page
Definition: tiff.c:94
h
h
Definition: vp9dsp_template.c:2038
AV_CODEC_ID_TIFF
@ AV_CODEC_ID_TIFF
Definition: codec_id.h:146
avstring.h
type_sizes
static const uint8_t type_sizes[14]
sizes of various TIFF field types (string size = 100)
Definition: tiff_common.h:53
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:388
TiffContext::predictor
int predictor
Definition: tiff.c:81
AV_PIX_FMT_BAYER_RGGB16
#define AV_PIX_FMT_BAYER_RGGB16
Definition: pixfmt.h:431
int
int
Definition: ffmpeg_filter.c:153
snprintf
#define snprintf
Definition: snprintf.h:34
ff_tget
unsigned ff_tget(GetByteContext *gb, int type, int le)
Reads a byte from the bytestream using given endianness.
Definition: tiff_common.c:63
TIFF_PHOTOMETRIC_SEPARATED
@ TIFF_PHOTOMETRIC_SEPARATED
Definition: tiff.h:190
TiffContext::strips
int strips
Definition: tiff.c:96
TIFF_PROJECTED_CS_TYPE_GEOKEY
@ TIFF_PROJECTED_CS_TYPE_GEOKEY
Definition: tiff.h:152
CINEMADNG_FRAME_RATE
@ CINEMADNG_FRAME_RATE
Definition: tiff.h:113
TiffContext::sub_ifd
uint32_t sub_ifd
Definition: tiff.c:93
AV_PIX_FMT_BAYER_GRBG8
@ AV_PIX_FMT_BAYER_GRBG8
bayer, GRGR..(odd line), BGBG..(even line), 8-bit samples
Definition: pixfmt.h:253
line
The official guide to swscale for confused that consecutive non overlapping rectangles of slice_bottom special converter These generally are unscaled converters of common like for each output line the vertical scaler pulls lines from a ring buffer When the ring buffer does not contain the wanted line
Definition: swscale.txt:40
TiffContext::yuv_line_size
unsigned int yuv_line_size
Definition: tiff.c:112
AV_RB16
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_WB24 unsigned int_TMPL AV_RB16
Definition: bytestream.h:98
TIFF_GT_RASTER_TYPE_GEOKEY
@ TIFF_GT_RASTER_TYPE_GEOKEY
Definition: tiff.h:136