2 * Copyright (c) 2006 Konstantin Shishkov
4 * This file is part of FFmpeg.
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.
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.
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
24 * @author Konstantin Shishkov
28 #include "bytestream.h"
35 #include "tiff_data.h"
39 #include "libavutil/attributes.h"
40 #include "libavutil/intreadwrite.h"
41 #include "libavutil/imgutils.h"
42 #include "libavutil/avstring.h"
44 typedef struct TiffContext {
45 AVCodecContext *avctx;
50 unsigned int bpp, bppcount;
51 uint32_t palette[256];
60 int strips, rps, sstype;
62 int stripsizesoff, stripsize, stripoff, strippos;
65 uint8_t *deinvert_buf;
66 int deinvert_buf_size;
72 static unsigned tget_short(GetByteContext *gb, int le)
74 unsigned v = le ? bytestream2_get_le16(gb) : bytestream2_get_be16(gb);
78 static unsigned tget_long(GetByteContext *gb, int le)
80 unsigned v = le ? bytestream2_get_le32(gb) : bytestream2_get_be32(gb);
84 static double tget_double(GetByteContext *gb, int le)
86 av_alias64 i = { .u64 = le ? bytestream2_get_le64(gb) : bytestream2_get_be64(gb)};
90 static unsigned tget(GetByteContext *gb, int type, int le)
93 case TIFF_BYTE : return bytestream2_get_byte(gb);
94 case TIFF_SHORT: return tget_short(gb, le);
95 case TIFF_LONG : return tget_long(gb, le);
96 default : return UINT_MAX;
100 static void free_geotags(TiffContext *const s)
103 for (i = 0; i < s->geotag_count; i++) {
104 if (s->geotags[i].val)
105 av_freep(&s->geotags[i].val);
107 av_freep(&s->geotags);
110 #define RET_GEOKEY(TYPE, array, element)\
111 if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
112 key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_name_type_map))\
113 return ff_tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].element;
115 static const char *get_geokey_name(int key)
117 RET_GEOKEY(VERT, vert, name);
118 RET_GEOKEY(PROJ, proj, name);
119 RET_GEOKEY(GEOG, geog, name);
120 RET_GEOKEY(CONF, conf, name);
125 static int get_geokey_type(int key)
127 RET_GEOKEY(VERT, vert, type);
128 RET_GEOKEY(PROJ, proj, type);
129 RET_GEOKEY(GEOG, geog, type);
130 RET_GEOKEY(CONF, conf, type);
132 return AVERROR_INVALIDDATA;
135 static int cmp_id_key(const void *id, const void *k)
137 return *(const int*)id - ((const TiffGeoTagKeyName*)k)->key;
140 static const char *search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
142 TiffGeoTagKeyName *r = bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key);
149 static char *get_geokey_val(int key, int val)
153 if (val == TIFF_GEO_KEY_UNDEFINED)
154 return av_strdup("undefined");
155 if (val == TIFF_GEO_KEY_USER_DEFINED)
156 return av_strdup("User-Defined");
158 #define RET_GEOKEY_VAL(TYPE, array)\
159 if (val >= TIFF_##TYPE##_OFFSET &&\
160 val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_codes))\
161 return av_strdup(ff_tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET]);
164 case TIFF_GT_MODEL_TYPE_GEOKEY:
165 RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
167 case TIFF_GT_RASTER_TYPE_GEOKEY:
168 RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
170 case TIFF_GEOG_LINEAR_UNITS_GEOKEY:
171 case TIFF_PROJ_LINEAR_UNITS_GEOKEY:
172 case TIFF_VERTICAL_UNITS_GEOKEY:
173 RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
175 case TIFF_GEOG_ANGULAR_UNITS_GEOKEY:
176 case TIFF_GEOG_AZIMUTH_UNITS_GEOKEY:
177 RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
179 case TIFF_GEOGRAPHIC_TYPE_GEOKEY:
180 RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
181 RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
183 case TIFF_GEOG_GEODETIC_DATUM_GEOKEY:
184 RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
185 RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
187 case TIFF_GEOG_ELLIPSOID_GEOKEY:
188 RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
190 case TIFF_GEOG_PRIME_MERIDIAN_GEOKEY:
191 RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
193 case TIFF_PROJECTED_CS_TYPE_GEOKEY:
194 ap = av_strdup(search_keyval(ff_tiff_proj_cs_type_codes, FF_ARRAY_ELEMS(ff_tiff_proj_cs_type_codes), val));
197 case TIFF_PROJECTION_GEOKEY:
198 ap = av_strdup(search_keyval(ff_tiff_projection_codes, FF_ARRAY_ELEMS(ff_tiff_projection_codes), val));
201 case TIFF_PROJ_COORD_TRANS_GEOKEY:
202 RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
204 case TIFF_VERTICAL_CS_TYPE_GEOKEY:
205 RET_GEOKEY_VAL(VERT_CS, vert_cs);
206 RET_GEOKEY_VAL(ORTHO_VERT_CS, ortho_vert_cs);
213 snprintf(ap, 14, "Unknown-%d", val);
217 static char *doubles2str(double *dp, int count, const char *sep)
221 uint64_t component_len;
222 if (!sep) sep = ", ";
223 component_len = 15LL + strlen(sep);
224 if (count >= (INT_MAX - 1)/component_len)
226 ap = av_malloc(component_len * count + 1);
231 for (i = 0; i < count; i++) {
232 unsigned l = snprintf(ap, component_len, "%f%s", dp[i], sep);
233 if(l >= component_len) {
239 ap0[strlen(ap0) - strlen(sep)] = '\0';
243 static char *shorts2str(int16_t *sp, int count, const char *sep)
247 uint64_t component_len;
248 if (!sep) sep = ", ";
249 component_len = 7LL + strlen(sep);
250 if (count >= (INT_MAX - 1)/component_len)
252 ap = av_malloc(component_len * count + 1);
257 for (i = 0; i < count; i++) {
258 unsigned l = snprintf(ap, component_len, "%d%s", sp[i], sep);
259 if (l >= component_len) {
265 ap0[strlen(ap0) - strlen(sep)] = '\0';
269 static int add_doubles_metadata(int count,
270 const char *name, const char *sep,
277 if (count >= INT_MAX / sizeof(int64_t) || count <= 0)
278 return AVERROR_INVALIDDATA;
279 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
280 return AVERROR_INVALIDDATA;
282 dp = av_malloc(count * sizeof(double));
284 return AVERROR(ENOMEM);
286 for (i = 0; i < count; i++)
287 dp[i] = tget_double(&s->gb, s->le);
288 ap = doubles2str(dp, count, sep);
291 return AVERROR(ENOMEM);
292 av_dict_set(&s->picture.metadata, name, ap, AV_DICT_DONT_STRDUP_VAL);
296 static int add_shorts_metadata(int count, const char *name,
297 const char *sep, TiffContext *s)
303 if (count >= INT_MAX / sizeof(int16_t) || count <= 0)
304 return AVERROR_INVALIDDATA;
305 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int16_t))
306 return AVERROR_INVALIDDATA;
308 sp = av_malloc(count * sizeof(int16_t));
310 return AVERROR(ENOMEM);
312 for (i = 0; i < count; i++)
313 sp[i] = tget_short(&s->gb, s->le);
314 ap = shorts2str(sp, count, sep);
317 return AVERROR(ENOMEM);
318 av_dict_set(&s->picture.metadata, name, ap, AV_DICT_DONT_STRDUP_VAL);
322 static int add_string_metadata(int count, const char *name,
327 if (bytestream2_get_bytes_left(&s->gb) < count || count < 0)
328 return AVERROR_INVALIDDATA;
330 value = av_malloc(count + 1);
332 return AVERROR(ENOMEM);
334 bytestream2_get_bufferu(&s->gb, value, count);
337 av_dict_set(&s->picture.metadata, name, value, AV_DICT_DONT_STRDUP_VAL);
341 static int add_metadata(int count, int type,
342 const char *name, const char *sep, TiffContext *s)
345 case TIFF_DOUBLE: return add_doubles_metadata(count, name, sep, s);
346 case TIFF_SHORT : return add_shorts_metadata(count, name, sep, s);
347 case TIFF_STRING: return add_string_metadata(count, name, s);
348 default : return AVERROR_INVALIDDATA;
353 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
356 z_stream zstream = { 0 };
359 zstream.next_in = (uint8_t *)src;
360 zstream.avail_in = size;
361 zstream.next_out = dst;
362 zstream.avail_out = *len;
363 zret = inflateInit(&zstream);
365 av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
368 zret = inflate(&zstream, Z_SYNC_FLUSH);
369 inflateEnd(&zstream);
370 *len = zstream.total_out;
371 return zret == Z_STREAM_END ? Z_OK : zret;
375 static void av_always_inline horizontal_fill(unsigned int bpp, uint8_t* dst,
376 int usePtr, const uint8_t *src,
377 uint8_t c, int width, int offset)
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;
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;
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;
408 memcpy(dst + offset, src, width);
410 memset(dst + offset, c, width);
415 static int tiff_unpack_strip(TiffContext *s, uint8_t *dst, int stride,
416 const uint8_t *src, int size, int lines)
418 int c, line, pixels, code, ret;
419 const uint8_t *ssrc = src;
420 int width = ((s->width * s->bpp) + 7) >> 3;
423 return AVERROR_INVALIDDATA;
426 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
427 uint8_t *src2 = NULL, *zbuf;
428 unsigned long outlen;
430 outlen = width * lines;
431 zbuf = av_malloc(outlen);
433 return AVERROR(ENOMEM);
435 src2 = av_malloc((unsigned)size + FF_INPUT_BUFFER_PADDING_SIZE);
437 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
439 return AVERROR(ENOMEM);
441 for (i = 0; i < size; i++)
442 src2[i] = ff_reverse[src[i]];
443 memset(src2 + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
446 ret = tiff_uncompress(zbuf, &outlen, src, size);
448 av_log(s->avctx, AV_LOG_ERROR,
449 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
450 (unsigned long)width * lines, ret);
453 return AVERROR_UNKNOWN;
456 for (line = 0; line < lines; line++) {
457 if(s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8){
458 horizontal_fill(s->bpp, dst, 1, src, 0, width, 0);
460 memcpy(dst, src, width);
470 if (s->compr == TIFF_LZW) {
473 av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
474 if (!s->deinvert_buf)
475 return AVERROR(ENOMEM);
476 for (i = 0; i < size; i++)
477 s->deinvert_buf[i] = ff_reverse[src[i]];
478 src = s->deinvert_buf;
481 if (size > 1 && !src[0] && (src[1]&1)) {
482 av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
484 if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
485 av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
489 if (s->compr == TIFF_CCITT_RLE || s->compr == TIFF_G3
490 || s->compr == TIFF_G4) {
492 uint8_t *src2 = av_malloc((unsigned)size +
493 FF_INPUT_BUFFER_PADDING_SIZE);
496 av_log(s->avctx, AV_LOG_ERROR,
497 "Error allocating temporary buffer\n");
498 return AVERROR(ENOMEM);
500 if (s->fax_opts & 2) {
501 av_log(s->avctx, AV_LOG_ERROR,
502 "Uncompressed fax mode is not supported (yet)\n");
504 return AVERROR_INVALIDDATA;
506 if (!s->fill_order) {
507 memcpy(src2, src, size);
509 for (i = 0; i < size; i++)
510 src2[i] = ff_reverse[src[i]];
512 memset(src2 + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
517 ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
518 s->compr, s->fax_opts);
521 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
522 for (line = 0; line < lines; line++) {
523 horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
529 for (line = 0; line < lines; line++) {
530 if (src - ssrc > size) {
531 av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
532 return AVERROR_INVALIDDATA;
536 if (ssrc + size - src < width)
537 return AVERROR_INVALIDDATA;
538 if (!s->fill_order) {
539 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
540 dst, 1, src, 0, width, 0);
543 for (i = 0; i < width; i++)
544 dst[i] = ff_reverse[src[i]];
549 for (pixels = 0; pixels < width;) {
550 if (ssrc + size - src < 2) {
551 av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
552 return AVERROR_INVALIDDATA;
554 code = (int8_t) * src++;
557 if (pixels + code > width) {
558 av_log(s->avctx, AV_LOG_ERROR,
559 "Copy went out of bounds\n");
560 return AVERROR_INVALIDDATA;
562 if (ssrc + size - src < code) {
563 av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
564 return AVERROR_INVALIDDATA;
566 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
567 dst, 1, src, 0, code, pixels);
570 } else if (code != -128) { // -127..-1
572 if (pixels + code > width) {
573 av_log(s->avctx, AV_LOG_ERROR,
574 "Run went out of bounds\n");
575 return AVERROR_INVALIDDATA;
578 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
579 dst, 0, NULL, c, code, pixels);
585 pixels = ff_lzw_decode(s->lzw, dst, width);
586 if (pixels < width) {
587 av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
589 return AVERROR_INVALIDDATA;
591 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
592 horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
600 static int init_image(TiffContext *s)
605 switch (s->bpp * 10 + s->bppcount) {
607 if (!s->palette_is_set) {
608 s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
614 s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
617 s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
620 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
623 s->avctx->pix_fmt = AV_PIX_FMT_GRAY8A;
626 s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
629 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
632 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
635 av_log(s->avctx, AV_LOG_ERROR,
636 "This format is not supported (bpp=%d, bppcount=%d)\n",
637 s->bpp, s->bppcount);
638 return AVERROR_INVALIDDATA;
640 if (s->width != s->avctx->width || s->height != s->avctx->height) {
641 if ((ret = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
643 avcodec_set_dimensions(s->avctx, s->width, s->height);
645 if (s->picture.data[0])
646 s->avctx->release_buffer(s->avctx, &s->picture);
647 if ((ret = ff_get_buffer(s->avctx, &s->picture)) < 0) {
648 av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
651 if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
652 if (s->palette_is_set) {
653 memcpy(s->picture.data[1], s->palette, sizeof(s->palette));
655 /* make default grayscale pal */
656 pal = (uint32_t *) s->picture.data[1];
657 for (i = 0; i < 1<<s->bpp; i++)
658 pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
664 static int tiff_decode_tag(TiffContext *s)
666 unsigned tag, type, count, off, value = 0;
667 int i, j, k, pos, start;
672 tag = tget_short(&s->gb, s->le);
673 type = tget_short(&s->gb, s->le);
674 count = tget_long(&s->gb, s->le);
675 off = tget_long(&s->gb, s->le);
676 start = bytestream2_tell(&s->gb);
678 if (type == 0 || type >= FF_ARRAY_ELEMS(type_sizes)) {
679 av_log(s->avctx, AV_LOG_DEBUG, "Unknown tiff type (%u) encountered\n",
688 bytestream2_seek(&s->gb, -4, SEEK_CUR);
689 value = tget(&s->gb, type, s->le);
696 bytestream2_seek(&s->gb, -4, SEEK_CUR);
701 bytestream2_seek(&s->gb, off, SEEK_SET);
704 if (count <= 4 && type_sizes[type] * count <= 4) {
705 bytestream2_seek(&s->gb, -4, SEEK_CUR);
707 bytestream2_seek(&s->gb, off, SEEK_SET);
721 av_log(s->avctx, AV_LOG_ERROR,
722 "This format is not supported (bpp=%d, %d components)\n",
724 return AVERROR_INVALIDDATA;
731 s->bpp = (off & 0xFF) + ((off >> 8) & 0xFF) +
732 ((off >> 16) & 0xFF) + ((off >> 24) & 0xFF);
737 if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
738 return AVERROR_INVALIDDATA;
739 for (i = 0; i < count; i++)
740 s->bpp += tget(&s->gb, type, s->le);
747 case TIFF_SAMPLES_PER_PIXEL:
749 av_log(s->avctx, AV_LOG_ERROR,
750 "Samples per pixel requires a single value, many provided\n");
751 return AVERROR_INVALIDDATA;
754 av_log(s->avctx, AV_LOG_ERROR,
755 "Samples per pixel %d is too large\n", value);
756 return AVERROR_INVALIDDATA;
758 if (s->bppcount == 1)
776 case TIFF_ADOBE_DEFLATE:
780 av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
781 return AVERROR(ENOSYS);
785 av_log(s->avctx, AV_LOG_ERROR,
786 "JPEG compression is not supported\n");
787 return AVERROR_PATCHWELCOME;
789 av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
791 return AVERROR_INVALIDDATA;
794 case TIFF_ROWSPERSTRIP:
795 if (type == TIFF_LONG && value == UINT_MAX)
798 av_log(s->avctx, AV_LOG_ERROR,
799 "Incorrect value of rows per strip\n");
800 return AVERROR_INVALIDDATA;
804 case TIFF_STRIP_OFFS:
814 if (s->strippos > bytestream2_size(&s->gb)) {
815 av_log(s->avctx, AV_LOG_ERROR,
816 "Tag referencing position outside the image\n");
817 return AVERROR_INVALIDDATA;
820 case TIFF_STRIP_SIZE:
822 s->stripsizesoff = 0;
823 s->stripsize = value;
826 s->stripsizesoff = off;
830 if (s->stripsizesoff > bytestream2_size(&s->gb)) {
831 av_log(s->avctx, AV_LOG_ERROR,
832 "Tag referencing position outside the image\n");
833 return AVERROR_INVALIDDATA;
836 case TIFF_TILE_BYTE_COUNTS:
837 case TIFF_TILE_LENGTH:
838 case TIFF_TILE_OFFSETS:
839 case TIFF_TILE_WIDTH:
840 av_log(s->avctx, AV_LOG_ERROR, "Tiled images are not supported\n");
841 return AVERROR_PATCHWELCOME;
844 s->predictor = value;
858 av_log(s->avctx, AV_LOG_ERROR, "Color mode %d is not supported\n",
860 return AVERROR_INVALIDDATA;
863 case TIFF_FILL_ORDER:
864 if (value < 1 || value > 2) {
865 av_log(s->avctx, AV_LOG_ERROR,
866 "Unknown FillOrder value %d, trying default one\n", value);
869 s->fill_order = value - 1;
872 pal = (uint32_t *) s->palette;
873 off = type_sizes[type];
874 if (count / 3 > 256 || bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
875 return AVERROR_INVALIDDATA;
876 off = (type_sizes[type] - 1) << 3;
877 for (k = 2; k >= 0; k--) {
878 for (i = 0; i < count / 3; i++) {
880 pal[i] = 0xFFU << 24;
881 j = (tget(&s->gb, type, s->le) >> off) << (k * 8);
885 s->palette_is_set = 1;
889 av_log(s->avctx, AV_LOG_ERROR, "Planar format is not supported\n");
890 return AVERROR_PATCHWELCOME;
894 if (s->compr == TIFF_G3)
898 if (s->compr == TIFF_G4)
901 #define ADD_METADATA(count, name, sep)\
902 if ((ret = add_metadata(count, type, name, sep, s)) < 0) {\
903 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
906 case TIFF_MODEL_PIXEL_SCALE:
907 ADD_METADATA(count, "ModelPixelScaleTag", NULL);
909 case TIFF_MODEL_TRANSFORMATION:
910 ADD_METADATA(count, "ModelTransformationTag", NULL);
912 case TIFF_MODEL_TIEPOINT:
913 ADD_METADATA(count, "ModelTiepointTag", NULL);
915 case TIFF_GEO_KEY_DIRECTORY:
916 ADD_METADATA(1, "GeoTIFF_Version", NULL);
917 ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
918 s->geotag_count = tget_short(&s->gb, s->le);
919 if (s->geotag_count > count / 4 - 1) {
920 s->geotag_count = count / 4 - 1;
921 av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
923 if (bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4) {
927 s->geotags = av_mallocz(sizeof(TiffGeoTag) * s->geotag_count);
929 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
931 return AVERROR(ENOMEM);
933 for (i = 0; i < s->geotag_count; i++) {
934 s->geotags[i].key = tget_short(&s->gb, s->le);
935 s->geotags[i].type = tget_short(&s->gb, s->le);
936 s->geotags[i].count = tget_short(&s->gb, s->le);
938 if (!s->geotags[i].type)
939 s->geotags[i].val = get_geokey_val(s->geotags[i].key, tget_short(&s->gb, s->le));
941 s->geotags[i].offset = tget_short(&s->gb, s->le);
944 case TIFF_GEO_DOUBLE_PARAMS:
945 if (count >= INT_MAX / sizeof(int64_t))
946 return AVERROR_INVALIDDATA;
947 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
948 return AVERROR_INVALIDDATA;
949 dp = av_malloc(count * sizeof(double));
951 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
952 return AVERROR(ENOMEM);
954 for (i = 0; i < count; i++)
955 dp[i] = tget_double(&s->gb, s->le);
956 for (i = 0; i < s->geotag_count; i++) {
957 if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
958 if (s->geotags[i].count == 0
959 || s->geotags[i].offset + s->geotags[i].count > count) {
960 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
962 char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
964 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
966 return AVERROR(ENOMEM);
968 s->geotags[i].val = ap;
974 case TIFF_GEO_ASCII_PARAMS:
975 pos = bytestream2_tell(&s->gb);
976 for (i = 0; i < s->geotag_count; i++) {
977 if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
978 if (s->geotags[i].count == 0
979 || s->geotags[i].offset + s->geotags[i].count > count) {
980 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
984 bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
985 if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
986 return AVERROR_INVALIDDATA;
987 ap = av_malloc(s->geotags[i].count);
989 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
990 return AVERROR(ENOMEM);
992 bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
993 ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
994 s->geotags[i].val = ap;
1000 ADD_METADATA(count, "artist", NULL);
1002 case TIFF_COPYRIGHT:
1003 ADD_METADATA(count, "copyright", NULL);
1006 ADD_METADATA(count, "date", NULL);
1008 case TIFF_DOCUMENT_NAME:
1009 ADD_METADATA(count, "document_name", NULL);
1011 case TIFF_HOST_COMPUTER:
1012 ADD_METADATA(count, "computer", NULL);
1014 case TIFF_IMAGE_DESCRIPTION:
1015 ADD_METADATA(count, "description", NULL);
1018 ADD_METADATA(count, "make", NULL);
1021 ADD_METADATA(count, "model", NULL);
1023 case TIFF_PAGE_NAME:
1024 ADD_METADATA(count, "page_name", NULL);
1026 case TIFF_PAGE_NUMBER:
1027 ADD_METADATA(count, "page_number", " / ");
1029 case TIFF_SOFTWARE_NAME:
1030 ADD_METADATA(count, "software", NULL);
1033 av_log(s->avctx, AV_LOG_DEBUG, "Unknown or unsupported tag %d/0X%0X\n",
1036 bytestream2_seek(&s->gb, start, SEEK_SET);
1040 static int decode_frame(AVCodecContext *avctx,
1041 void *data, int *got_frame, AVPacket *avpkt)
1043 TiffContext *const s = avctx->priv_data;
1044 AVFrame *picture = data;
1045 AVFrame *const p = &s->picture;
1050 unsigned soff, ssize;
1052 GetByteContext stripsizes;
1053 GetByteContext stripdata;
1055 bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1057 //parse image header
1058 if (avpkt->size < 8)
1059 return AVERROR_INVALIDDATA;
1060 id = bytestream2_get_le16u(&s->gb);
1063 else if (id == 0x4D4D)
1066 av_log(avctx, AV_LOG_ERROR, "TIFF header not found\n");
1067 return AVERROR_INVALIDDATA;
1070 // TIFF_BPP is not a required tag and defaults to 1
1071 s->bppcount = s->bpp = 1;
1073 s->compr = TIFF_RAW;
1076 /* metadata has been destroyed from lavc internals, that pointer is not
1078 s->picture.metadata = NULL;
1080 // As TIFF 6.0 specification puts it "An arbitrary but carefully chosen number
1081 // that further identifies the file as a TIFF file"
1082 if (tget_short(&s->gb, le) != 42) {
1083 av_log(avctx, AV_LOG_ERROR,
1084 "The answer to life, universe and everything is not correct!\n");
1085 return AVERROR_INVALIDDATA;
1087 // Reset these offsets so we can tell if they were set this frame
1088 s->stripsizesoff = s->strippos = 0;
1089 /* parse image file directory */
1090 off = tget_long(&s->gb, le);
1091 if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1092 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1093 return AVERROR_INVALIDDATA;
1095 bytestream2_seek(&s->gb, off, SEEK_SET);
1096 entries = tget_short(&s->gb, le);
1097 if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1098 return AVERROR_INVALIDDATA;
1099 for (i = 0; i < entries; i++) {
1100 if ((ret = tiff_decode_tag(s)) < 0)
1104 for (i = 0; i<s->geotag_count; i++) {
1105 const char *keyname = get_geokey_name(s->geotags[i].key);
1107 av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
1110 if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
1111 av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
1114 ret = av_dict_set(&s->picture.metadata, keyname, s->geotags[i].val, 0);
1116 av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
1121 if (!s->strippos && !s->stripoff) {
1122 av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
1123 return AVERROR_INVALIDDATA;
1125 /* now we have the data and may start decoding */
1126 if ((ret = init_image(s)) < 0)
1129 if (s->strips == 1 && !s->stripsize) {
1130 av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
1131 s->stripsize = avpkt->size - s->stripoff;
1133 stride = p->linesize[0];
1136 if (s->stripsizesoff) {
1137 if (s->stripsizesoff >= (unsigned)avpkt->size)
1138 return AVERROR_INVALIDDATA;
1139 bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff, avpkt->size - s->stripsizesoff);
1142 if (s->strippos >= (unsigned)avpkt->size)
1143 return AVERROR_INVALIDDATA;
1144 bytestream2_init(&stripdata, avpkt->data + s->strippos, avpkt->size - s->strippos);
1148 av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1149 return AVERROR_INVALIDDATA;
1152 for (i = 0; i < s->height; i += s->rps) {
1153 if (s->stripsizesoff)
1154 ssize = tget(&stripsizes, s->sstype, s->le);
1156 ssize = s->stripsize;
1159 soff = tget(&stripdata, s->sot, s->le);
1163 if (soff > avpkt->size || ssize > avpkt->size - soff) {
1164 av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
1165 return AVERROR_INVALIDDATA;
1167 if (tiff_unpack_strip(s, dst, stride, avpkt->data + soff, ssize,
1168 FFMIN(s->rps, s->height - i)) < 0)
1170 dst += s->rps * stride;
1172 if (s->predictor == 2) {
1175 ssize = s->width * soff;
1176 if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
1177 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE) {
1178 for (i = 0; i < s->height; i++) {
1179 for (j = soff; j < ssize; j += 2)
1180 AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
1183 } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
1184 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) {
1185 for (i = 0; i < s->height; i++) {
1186 for (j = soff; j < ssize; j += 2)
1187 AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
1191 for (i = 0; i < s->height; i++) {
1192 for (j = soff; j < ssize; j++)
1193 dst[j] += dst[j - soff];
1200 dst = s->picture.data[0];
1201 for (i = 0; i < s->height; i++) {
1202 for (j = 0; j < s->picture.linesize[0]; j++)
1203 dst[j] = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255) - dst[j];
1204 dst += s->picture.linesize[0];
1207 *picture = s->picture;
1213 static av_cold int tiff_init(AVCodecContext *avctx)
1215 TiffContext *s = avctx->priv_data;
1220 avcodec_get_frame_defaults(&s->picture);
1221 avctx->coded_frame = &s->picture;
1222 ff_lzw_decode_open(&s->lzw);
1223 ff_ccitt_unpack_init();
1228 static av_cold int tiff_end(AVCodecContext *avctx)
1230 TiffContext *const s = avctx->priv_data;
1234 ff_lzw_decode_close(&s->lzw);
1235 av_freep(&s->deinvert_buf);
1236 if (s->picture.data[0])
1237 avctx->release_buffer(avctx, &s->picture);
1241 AVCodec ff_tiff_decoder = {
1243 .type = AVMEDIA_TYPE_VIDEO,
1244 .id = AV_CODEC_ID_TIFF,
1245 .priv_data_size = sizeof(TiffContext),
1248 .decode = decode_frame,
1249 .capabilities = CODEC_CAP_DR1,
1250 .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),