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;
49 unsigned int bpp, bppcount;
50 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,
271 TiffContext *s, AVFrame *frame)
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(avpriv_frame_get_metadatap(frame), name, ap, AV_DICT_DONT_STRDUP_VAL);
296 static int add_shorts_metadata(int count, const char *name,
297 const char *sep, TiffContext *s, AVFrame *frame)
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(avpriv_frame_get_metadatap(frame), name, ap, AV_DICT_DONT_STRDUP_VAL);
322 static int add_string_metadata(int count, const char *name,
323 TiffContext *s, AVFrame *frame)
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(avpriv_frame_get_metadatap(frame), 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, AVFrame *frame)
345 case TIFF_DOUBLE: return add_doubles_metadata(count, name, sep, s, frame);
346 case TIFF_SHORT : return add_shorts_metadata(count, name, sep, s, frame);
347 case TIFF_STRING: return add_string_metadata(count, name, s, frame);
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 deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
419 av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
420 if (!s->deinvert_buf)
421 return AVERROR(ENOMEM);
422 for (i = 0; i < size; i++)
423 s->deinvert_buf[i] = ff_reverse[src[i]];
428 static int tiff_unpack_strip(TiffContext *s, uint8_t *dst, int stride,
429 const uint8_t *src, int size, int lines)
431 int c, line, pixels, code, ret;
432 const uint8_t *ssrc = src;
433 int width = ((s->width * s->bpp) + 7) >> 3;
436 width /= s->bppcount;
439 return AVERROR_INVALIDDATA;
442 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
444 unsigned long outlen;
446 outlen = width * lines;
447 zbuf = av_malloc(outlen);
449 return AVERROR(ENOMEM);
451 if ((ret = deinvert_buffer(s, src, size)) < 0)
453 ssrc = src = s->deinvert_buf;
455 ret = tiff_uncompress(zbuf, &outlen, src, size);
457 av_log(s->avctx, AV_LOG_ERROR,
458 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
459 (unsigned long)width * lines, ret);
461 return AVERROR_UNKNOWN;
464 for (line = 0; line < lines; line++) {
465 if(s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8){
466 horizontal_fill(s->bpp, dst, 1, src, 0, width, 0);
468 memcpy(dst, src, width);
477 if (s->compr == TIFF_LZW) {
479 if ((ret = deinvert_buffer(s, src, size)) < 0)
481 ssrc = src = s->deinvert_buf;
483 if (size > 1 && !src[0] && (src[1]&1)) {
484 av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
486 if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
487 av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
491 if (s->compr == TIFF_CCITT_RLE || s->compr == TIFF_G3
492 || s->compr == TIFF_G4) {
494 uint8_t *src2 = av_malloc((unsigned)size +
495 FF_INPUT_BUFFER_PADDING_SIZE);
498 av_log(s->avctx, AV_LOG_ERROR,
499 "Error allocating temporary buffer\n");
500 return AVERROR(ENOMEM);
502 if (s->fax_opts & 2) {
503 av_log(s->avctx, AV_LOG_ERROR,
504 "Uncompressed fax mode is not supported (yet)\n");
506 return AVERROR_INVALIDDATA;
508 if (!s->fill_order) {
509 memcpy(src2, src, size);
511 for (i = 0; i < size; i++)
512 src2[i] = ff_reverse[src[i]];
514 memset(src2 + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
519 ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
520 s->compr, s->fax_opts);
523 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
524 for (line = 0; line < lines; line++) {
525 horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
531 for (line = 0; line < lines; line++) {
532 if (src - ssrc > size) {
533 av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
534 return AVERROR_INVALIDDATA;
538 if (ssrc + size - src < width)
539 return AVERROR_INVALIDDATA;
540 if (!s->fill_order) {
541 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
542 dst, 1, src, 0, width, 0);
545 for (i = 0; i < width; i++)
546 dst[i] = ff_reverse[src[i]];
551 for (pixels = 0; pixels < width;) {
552 if (ssrc + size - src < 2) {
553 av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
554 return AVERROR_INVALIDDATA;
556 code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
559 if (pixels + code > width) {
560 av_log(s->avctx, AV_LOG_ERROR,
561 "Copy went out of bounds\n");
562 return AVERROR_INVALIDDATA;
564 if (ssrc + size - src < code) {
565 av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
566 return AVERROR_INVALIDDATA;
568 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
569 dst, 1, src, 0, code, pixels);
572 } else if (code != -128) { // -127..-1
574 if (pixels + code > width) {
575 av_log(s->avctx, AV_LOG_ERROR,
576 "Run went out of bounds\n");
577 return AVERROR_INVALIDDATA;
580 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
581 dst, 0, NULL, c, code, pixels);
587 for (i = 0; i < width; i++)
588 dst[i] = ff_reverse[dst[i]];
592 pixels = ff_lzw_decode(s->lzw, dst, width);
593 if (pixels < width) {
594 av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
596 return AVERROR_INVALIDDATA;
598 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
599 horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
607 static int init_image(TiffContext *s, AVFrame *frame)
612 switch (s->bpp * 10 + s->bppcount) {
614 if (!s->palette_is_set) {
615 s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
621 s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
624 s->avctx->pix_fmt = s->planar ? AV_PIX_FMT_GBRP : AV_PIX_FMT_RGB24;
627 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
630 s->avctx->pix_fmt = s>planar ? AV_PIX_FMT_NONE : AV_PIX_FMT_GRAY8A;
633 s->avctx->pix_fmt = s->planar ? AV_PIX_FMT_GBRAP : AV_PIX_FMT_RGBA;
636 s->avctx->pix_fmt = s->planar ? (s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE) :
637 (s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE);
640 s->avctx->pix_fmt = s->planar ? (s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE) :
641 (s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE);
644 av_log(s->avctx, AV_LOG_ERROR,
645 "This format is not supported (bpp=%d, bppcount=%d)\n",
646 s->bpp, s->bppcount);
647 return AVERROR_INVALIDDATA;
649 if (s->width != s->avctx->width || s->height != s->avctx->height) {
650 if ((ret = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
652 avcodec_set_dimensions(s->avctx, s->width, s->height);
654 if ((ret = ff_get_buffer(s->avctx, frame, 0)) < 0)
656 if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
657 if (s->palette_is_set) {
658 memcpy(frame->data[1], s->palette, sizeof(s->palette));
660 /* make default grayscale pal */
661 pal = (uint32_t *) frame->data[1];
662 for (i = 0; i < 1<<s->bpp; i++)
663 pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
669 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
671 unsigned tag, type, count, off, value = 0;
672 int i, j, k, pos, start;
677 tag = tget_short(&s->gb, s->le);
678 type = tget_short(&s->gb, s->le);
679 count = tget_long(&s->gb, s->le);
680 off = tget_long(&s->gb, s->le);
681 start = bytestream2_tell(&s->gb);
683 if (type == 0 || type >= FF_ARRAY_ELEMS(type_sizes)) {
684 av_log(s->avctx, AV_LOG_DEBUG, "Unknown tiff type (%u) encountered\n",
693 bytestream2_seek(&s->gb, -4, SEEK_CUR);
694 value = tget(&s->gb, type, s->le);
701 bytestream2_seek(&s->gb, -4, SEEK_CUR);
706 bytestream2_seek(&s->gb, off, SEEK_SET);
709 if (count <= 4 && type_sizes[type] * count <= 4) {
710 bytestream2_seek(&s->gb, -4, SEEK_CUR);
712 bytestream2_seek(&s->gb, off, SEEK_SET);
726 av_log(s->avctx, AV_LOG_ERROR,
727 "This format is not supported (bpp=%d, %d components)\n",
729 return AVERROR_INVALIDDATA;
736 s->bpp = (off & 0xFF) + ((off >> 8) & 0xFF) +
737 ((off >> 16) & 0xFF) + ((off >> 24) & 0xFF);
742 if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
743 return AVERROR_INVALIDDATA;
744 for (i = 0; i < count; i++)
745 s->bpp += tget(&s->gb, type, s->le);
752 case TIFF_SAMPLES_PER_PIXEL:
754 av_log(s->avctx, AV_LOG_ERROR,
755 "Samples per pixel requires a single value, many provided\n");
756 return AVERROR_INVALIDDATA;
759 av_log(s->avctx, AV_LOG_ERROR,
760 "Samples per pixel %d is too large\n", value);
761 return AVERROR_INVALIDDATA;
763 if (s->bppcount == 1)
781 case TIFF_ADOBE_DEFLATE:
785 av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
786 return AVERROR(ENOSYS);
790 av_log(s->avctx, AV_LOG_ERROR,
791 "JPEG compression is not supported\n");
792 return AVERROR_PATCHWELCOME;
794 av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
796 return AVERROR_INVALIDDATA;
799 case TIFF_ROWSPERSTRIP:
800 if (type == TIFF_LONG && value == UINT_MAX)
803 av_log(s->avctx, AV_LOG_ERROR,
804 "Incorrect value of rows per strip\n");
805 return AVERROR_INVALIDDATA;
809 case TIFF_STRIP_OFFS:
819 if (s->strippos > bytestream2_size(&s->gb)) {
820 av_log(s->avctx, AV_LOG_ERROR,
821 "Tag referencing position outside the image\n");
822 return AVERROR_INVALIDDATA;
825 case TIFF_STRIP_SIZE:
827 s->stripsizesoff = 0;
828 s->stripsize = value;
831 s->stripsizesoff = off;
835 if (s->stripsizesoff > bytestream2_size(&s->gb)) {
836 av_log(s->avctx, AV_LOG_ERROR,
837 "Tag referencing position outside the image\n");
838 return AVERROR_INVALIDDATA;
841 case TIFF_TILE_BYTE_COUNTS:
842 case TIFF_TILE_LENGTH:
843 case TIFF_TILE_OFFSETS:
844 case TIFF_TILE_WIDTH:
845 av_log(s->avctx, AV_LOG_ERROR, "Tiled images are not supported\n");
846 return AVERROR_PATCHWELCOME;
849 s->predictor = value;
863 av_log(s->avctx, AV_LOG_ERROR, "Color mode %d is not supported\n",
865 return AVERROR_INVALIDDATA;
868 case TIFF_FILL_ORDER:
869 if (value < 1 || value > 2) {
870 av_log(s->avctx, AV_LOG_ERROR,
871 "Unknown FillOrder value %d, trying default one\n", value);
874 s->fill_order = value - 1;
877 pal = (uint32_t *) s->palette;
878 off = type_sizes[type];
879 if (count / 3 > 256 || bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
880 return AVERROR_INVALIDDATA;
881 off = (type_sizes[type] - 1) << 3;
882 for (k = 2; k >= 0; k--) {
883 for (i = 0; i < count / 3; i++) {
885 pal[i] = 0xFFU << 24;
886 j = (tget(&s->gb, type, s->le) >> off) << (k * 8);
890 s->palette_is_set = 1;
893 s->planar = value == 2;
896 if (s->compr == TIFF_G3)
900 if (s->compr == TIFF_G4)
903 #define ADD_METADATA(count, name, sep)\
904 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
905 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
908 case TIFF_MODEL_PIXEL_SCALE:
909 ADD_METADATA(count, "ModelPixelScaleTag", NULL);
911 case TIFF_MODEL_TRANSFORMATION:
912 ADD_METADATA(count, "ModelTransformationTag", NULL);
914 case TIFF_MODEL_TIEPOINT:
915 ADD_METADATA(count, "ModelTiepointTag", NULL);
917 case TIFF_GEO_KEY_DIRECTORY:
918 ADD_METADATA(1, "GeoTIFF_Version", NULL);
919 ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
920 s->geotag_count = tget_short(&s->gb, s->le);
921 if (s->geotag_count > count / 4 - 1) {
922 s->geotag_count = count / 4 - 1;
923 av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
925 if (bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4) {
929 s->geotags = av_mallocz(sizeof(TiffGeoTag) * s->geotag_count);
931 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
933 return AVERROR(ENOMEM);
935 for (i = 0; i < s->geotag_count; i++) {
936 s->geotags[i].key = tget_short(&s->gb, s->le);
937 s->geotags[i].type = tget_short(&s->gb, s->le);
938 s->geotags[i].count = tget_short(&s->gb, s->le);
940 if (!s->geotags[i].type)
941 s->geotags[i].val = get_geokey_val(s->geotags[i].key, tget_short(&s->gb, s->le));
943 s->geotags[i].offset = tget_short(&s->gb, s->le);
946 case TIFF_GEO_DOUBLE_PARAMS:
947 if (count >= INT_MAX / sizeof(int64_t))
948 return AVERROR_INVALIDDATA;
949 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
950 return AVERROR_INVALIDDATA;
951 dp = av_malloc(count * sizeof(double));
953 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
954 return AVERROR(ENOMEM);
956 for (i = 0; i < count; i++)
957 dp[i] = tget_double(&s->gb, s->le);
958 for (i = 0; i < s->geotag_count; i++) {
959 if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
960 if (s->geotags[i].count == 0
961 || s->geotags[i].offset + s->geotags[i].count > count) {
962 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
964 char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
966 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
968 return AVERROR(ENOMEM);
970 s->geotags[i].val = ap;
976 case TIFF_GEO_ASCII_PARAMS:
977 pos = bytestream2_tell(&s->gb);
978 for (i = 0; i < s->geotag_count; i++) {
979 if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
980 if (s->geotags[i].count == 0
981 || s->geotags[i].offset + s->geotags[i].count > count) {
982 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
986 bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
987 if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
988 return AVERROR_INVALIDDATA;
989 ap = av_malloc(s->geotags[i].count);
991 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
992 return AVERROR(ENOMEM);
994 bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
995 ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
996 s->geotags[i].val = ap;
1002 ADD_METADATA(count, "artist", NULL);
1004 case TIFF_COPYRIGHT:
1005 ADD_METADATA(count, "copyright", NULL);
1008 ADD_METADATA(count, "date", NULL);
1010 case TIFF_DOCUMENT_NAME:
1011 ADD_METADATA(count, "document_name", NULL);
1013 case TIFF_HOST_COMPUTER:
1014 ADD_METADATA(count, "computer", NULL);
1016 case TIFF_IMAGE_DESCRIPTION:
1017 ADD_METADATA(count, "description", NULL);
1020 ADD_METADATA(count, "make", NULL);
1023 ADD_METADATA(count, "model", NULL);
1025 case TIFF_PAGE_NAME:
1026 ADD_METADATA(count, "page_name", NULL);
1028 case TIFF_PAGE_NUMBER:
1029 ADD_METADATA(count, "page_number", " / ");
1031 case TIFF_SOFTWARE_NAME:
1032 ADD_METADATA(count, "software", NULL);
1035 av_log(s->avctx, AV_LOG_DEBUG, "Unknown or unsupported tag %d/0X%0X\n",
1038 bytestream2_seek(&s->gb, start, SEEK_SET);
1042 static int decode_frame(AVCodecContext *avctx,
1043 void *data, int *got_frame, AVPacket *avpkt)
1045 TiffContext *const s = avctx->priv_data;
1046 AVFrame *const p = data;
1048 int id, le, ret, plane, planes;
1051 unsigned soff, ssize;
1053 GetByteContext stripsizes;
1054 GetByteContext stripdata;
1056 bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1058 //parse image header
1059 if (avpkt->size < 8)
1060 return AVERROR_INVALIDDATA;
1061 id = bytestream2_get_le16u(&s->gb);
1064 else if (id == 0x4D4D)
1067 av_log(avctx, AV_LOG_ERROR, "TIFF header not found\n");
1068 return AVERROR_INVALIDDATA;
1071 // TIFF_BPP is not a required tag and defaults to 1
1072 s->bppcount = s->bpp = 1;
1074 s->compr = TIFF_RAW;
1078 // As TIFF 6.0 specification puts it "An arbitrary but carefully chosen number
1079 // that further identifies the file as a TIFF file"
1080 if (tget_short(&s->gb, le) != 42) {
1081 av_log(avctx, AV_LOG_ERROR,
1082 "The answer to life, universe and everything is not correct!\n");
1083 return AVERROR_INVALIDDATA;
1085 // Reset these offsets so we can tell if they were set this frame
1086 s->stripsizesoff = s->strippos = 0;
1087 /* parse image file directory */
1088 off = tget_long(&s->gb, le);
1089 if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1090 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1091 return AVERROR_INVALIDDATA;
1093 bytestream2_seek(&s->gb, off, SEEK_SET);
1094 entries = tget_short(&s->gb, le);
1095 if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1096 return AVERROR_INVALIDDATA;
1097 for (i = 0; i < entries; i++) {
1098 if ((ret = tiff_decode_tag(s, p)) < 0)
1102 for (i = 0; i<s->geotag_count; i++) {
1103 const char *keyname = get_geokey_name(s->geotags[i].key);
1105 av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
1108 if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
1109 av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
1112 ret = av_dict_set(avpriv_frame_get_metadatap(p), keyname, s->geotags[i].val, 0);
1114 av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
1119 if (!s->strippos && !s->stripoff) {
1120 av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
1121 return AVERROR_INVALIDDATA;
1123 /* now we have the data and may start decoding */
1124 if ((ret = init_image(s, p)) < 0)
1127 if (s->strips == 1 && !s->stripsize) {
1128 av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
1129 s->stripsize = avpkt->size - s->stripoff;
1132 if (s->stripsizesoff) {
1133 if (s->stripsizesoff >= (unsigned)avpkt->size)
1134 return AVERROR_INVALIDDATA;
1135 bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff, avpkt->size - s->stripsizesoff);
1138 if (s->strippos >= (unsigned)avpkt->size)
1139 return AVERROR_INVALIDDATA;
1140 bytestream2_init(&stripdata, avpkt->data + s->strippos, avpkt->size - s->strippos);
1144 av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1145 return AVERROR_INVALIDDATA;
1148 planes = s->planar ? s->bppcount : 1;
1149 for (plane = 0; plane < planes; plane++) {
1150 stride = p->linesize[plane];
1151 dst = p->data[plane];
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) {
1173 dst = p->data[plane];
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 = p->data[plane];
1201 for (i = 0; i < s->height; i++) {
1202 for (j = 0; j < p->linesize[plane]; j++)
1203 dst[j] = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255) - dst[j];
1204 dst += p->linesize[plane];
1209 if (s->planar && s->bpp_count > 2) {
1210 FFSWAP(uint8_t*, p->data[0], p->data[2]);
1211 FFSWAP(int, p->linesize[0], p->linesize[2]);
1212 FFSWAP(uint8_t*, p->data[0], p->data[1]);
1213 FFSWAP(int, p->linesize[0], p->linesize[1]);
1221 static av_cold int tiff_init(AVCodecContext *avctx)
1223 TiffContext *s = avctx->priv_data;
1228 ff_lzw_decode_open(&s->lzw);
1229 ff_ccitt_unpack_init();
1234 static av_cold int tiff_end(AVCodecContext *avctx)
1236 TiffContext *const s = avctx->priv_data;
1240 ff_lzw_decode_close(&s->lzw);
1241 av_freep(&s->deinvert_buf);
1245 AVCodec ff_tiff_decoder = {
1247 .type = AVMEDIA_TYPE_VIDEO,
1248 .id = AV_CODEC_ID_TIFF,
1249 .priv_data_size = sizeof(TiffContext),
1252 .decode = decode_frame,
1253 .capabilities = CODEC_CAP_DR1,
1254 .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),