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];
59 int strips, rps, sstype;
61 int stripsizesoff, stripsize, stripoff, strippos;
64 uint8_t *deinvert_buf;
65 int deinvert_buf_size;
71 static unsigned tget_short(GetByteContext *gb, int le)
73 unsigned v = le ? bytestream2_get_le16(gb) : bytestream2_get_be16(gb);
77 static unsigned tget_long(GetByteContext *gb, int le)
79 unsigned v = le ? bytestream2_get_le32(gb) : bytestream2_get_be32(gb);
83 static double tget_double(GetByteContext *gb, int le)
85 av_alias64 i = { .u64 = le ? bytestream2_get_le64(gb) : bytestream2_get_be64(gb)};
89 static unsigned tget(GetByteContext *gb, int type, int le)
92 case TIFF_BYTE : return bytestream2_get_byte(gb);
93 case TIFF_SHORT: return tget_short(gb, le);
94 case TIFF_LONG : return tget_long(gb, le);
95 default : return UINT_MAX;
99 static void free_geotags(TiffContext *const s)
102 for (i = 0; i < s->geotag_count; i++) {
103 if (s->geotags[i].val)
104 av_freep(&s->geotags[i].val);
106 av_freep(&s->geotags);
109 #define RET_GEOKEY(TYPE, array, element)\
110 if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
111 key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_name_type_map))\
112 return ff_tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].element;
114 static const char *get_geokey_name(int key)
116 RET_GEOKEY(VERT, vert, name);
117 RET_GEOKEY(PROJ, proj, name);
118 RET_GEOKEY(GEOG, geog, name);
119 RET_GEOKEY(CONF, conf, name);
124 static int get_geokey_type(int key)
126 RET_GEOKEY(VERT, vert, type);
127 RET_GEOKEY(PROJ, proj, type);
128 RET_GEOKEY(GEOG, geog, type);
129 RET_GEOKEY(CONF, conf, type);
131 return AVERROR_INVALIDDATA;
134 static int cmp_id_key(const void *id, const void *k)
136 return *(const int*)id - ((const TiffGeoTagKeyName*)k)->key;
139 static const char *search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
141 TiffGeoTagKeyName *r = bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key);
148 static char *get_geokey_val(int key, int val)
152 if (val == TIFF_GEO_KEY_UNDEFINED)
153 return av_strdup("undefined");
154 if (val == TIFF_GEO_KEY_USER_DEFINED)
155 return av_strdup("User-Defined");
157 #define RET_GEOKEY_VAL(TYPE, array)\
158 if (val >= TIFF_##TYPE##_OFFSET &&\
159 val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_codes))\
160 return av_strdup(ff_tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET]);
163 case TIFF_GT_MODEL_TYPE_GEOKEY:
164 RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
166 case TIFF_GT_RASTER_TYPE_GEOKEY:
167 RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
169 case TIFF_GEOG_LINEAR_UNITS_GEOKEY:
170 case TIFF_PROJ_LINEAR_UNITS_GEOKEY:
171 case TIFF_VERTICAL_UNITS_GEOKEY:
172 RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
174 case TIFF_GEOG_ANGULAR_UNITS_GEOKEY:
175 case TIFF_GEOG_AZIMUTH_UNITS_GEOKEY:
176 RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
178 case TIFF_GEOGRAPHIC_TYPE_GEOKEY:
179 RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
180 RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
182 case TIFF_GEOG_GEODETIC_DATUM_GEOKEY:
183 RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
184 RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
186 case TIFF_GEOG_ELLIPSOID_GEOKEY:
187 RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
189 case TIFF_GEOG_PRIME_MERIDIAN_GEOKEY:
190 RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
192 case TIFF_PROJECTED_CS_TYPE_GEOKEY:
193 ap = av_strdup(search_keyval(ff_tiff_proj_cs_type_codes, FF_ARRAY_ELEMS(ff_tiff_proj_cs_type_codes), val));
196 case TIFF_PROJECTION_GEOKEY:
197 ap = av_strdup(search_keyval(ff_tiff_projection_codes, FF_ARRAY_ELEMS(ff_tiff_projection_codes), val));
200 case TIFF_PROJ_COORD_TRANS_GEOKEY:
201 RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
203 case TIFF_VERTICAL_CS_TYPE_GEOKEY:
204 RET_GEOKEY_VAL(VERT_CS, vert_cs);
205 RET_GEOKEY_VAL(ORTHO_VERT_CS, ortho_vert_cs);
212 snprintf(ap, 14, "Unknown-%d", val);
216 static char *doubles2str(double *dp, int count, const char *sep)
220 uint64_t component_len;
221 if (!sep) sep = ", ";
222 component_len = 15LL + strlen(sep);
223 if (count >= (INT_MAX - 1)/component_len)
225 ap = av_malloc(component_len * count + 1);
230 for (i = 0; i < count; i++) {
231 unsigned l = snprintf(ap, component_len, "%f%s", dp[i], sep);
232 if(l >= component_len) {
238 ap0[strlen(ap0) - strlen(sep)] = '\0';
242 static char *shorts2str(int16_t *sp, int count, const char *sep)
246 uint64_t component_len;
247 if (!sep) sep = ", ";
248 component_len = 7LL + strlen(sep);
249 if (count >= (INT_MAX - 1)/component_len)
251 ap = av_malloc(component_len * count + 1);
256 for (i = 0; i < count; i++) {
257 unsigned l = snprintf(ap, component_len, "%d%s", sp[i], sep);
258 if (l >= component_len) {
264 ap0[strlen(ap0) - strlen(sep)] = '\0';
268 static int add_doubles_metadata(int count,
269 const char *name, const char *sep,
270 TiffContext *s, AVFrame *frame)
276 if (count >= INT_MAX / sizeof(int64_t) || count <= 0)
277 return AVERROR_INVALIDDATA;
278 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
279 return AVERROR_INVALIDDATA;
281 dp = av_malloc(count * sizeof(double));
283 return AVERROR(ENOMEM);
285 for (i = 0; i < count; i++)
286 dp[i] = tget_double(&s->gb, s->le);
287 ap = doubles2str(dp, count, sep);
290 return AVERROR(ENOMEM);
291 av_dict_set(avpriv_frame_get_metadatap(frame), name, ap, AV_DICT_DONT_STRDUP_VAL);
295 static int add_shorts_metadata(int count, const char *name,
296 const char *sep, TiffContext *s, AVFrame *frame)
302 if (count >= INT_MAX / sizeof(int16_t) || count <= 0)
303 return AVERROR_INVALIDDATA;
304 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int16_t))
305 return AVERROR_INVALIDDATA;
307 sp = av_malloc(count * sizeof(int16_t));
309 return AVERROR(ENOMEM);
311 for (i = 0; i < count; i++)
312 sp[i] = tget_short(&s->gb, s->le);
313 ap = shorts2str(sp, count, sep);
316 return AVERROR(ENOMEM);
317 av_dict_set(avpriv_frame_get_metadatap(frame), name, ap, AV_DICT_DONT_STRDUP_VAL);
321 static int add_string_metadata(int count, const char *name,
322 TiffContext *s, AVFrame *frame)
326 if (bytestream2_get_bytes_left(&s->gb) < count || count < 0)
327 return AVERROR_INVALIDDATA;
329 value = av_malloc(count + 1);
331 return AVERROR(ENOMEM);
333 bytestream2_get_bufferu(&s->gb, value, count);
336 av_dict_set(avpriv_frame_get_metadatap(frame), name, value, AV_DICT_DONT_STRDUP_VAL);
340 static int add_metadata(int count, int type,
341 const char *name, const char *sep, TiffContext *s, AVFrame *frame)
344 case TIFF_DOUBLE: return add_doubles_metadata(count, name, sep, s, frame);
345 case TIFF_SHORT : return add_shorts_metadata(count, name, sep, s, frame);
346 case TIFF_STRING: return add_string_metadata(count, name, s, frame);
347 default : return AVERROR_INVALIDDATA;
352 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
355 z_stream zstream = { 0 };
358 zstream.next_in = (uint8_t *)src;
359 zstream.avail_in = size;
360 zstream.next_out = dst;
361 zstream.avail_out = *len;
362 zret = inflateInit(&zstream);
364 av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
367 zret = inflate(&zstream, Z_SYNC_FLUSH);
368 inflateEnd(&zstream);
369 *len = zstream.total_out;
370 return zret == Z_STREAM_END ? Z_OK : zret;
374 static void av_always_inline horizontal_fill(unsigned int bpp, uint8_t* dst,
375 int usePtr, const uint8_t *src,
376 uint8_t c, int width, int offset)
380 while (--width >= 0) {
381 dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
382 dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
383 dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
384 dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
385 dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
386 dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
387 dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
388 dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
392 while (--width >= 0) {
393 dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
394 dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
395 dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
396 dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
400 while (--width >= 0) {
401 dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
402 dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
407 memcpy(dst + offset, src, width);
409 memset(dst + offset, c, width);
414 static int tiff_unpack_strip(TiffContext *s, uint8_t *dst, int stride,
415 const uint8_t *src, int size, int lines)
417 int c, line, pixels, code, ret;
418 const uint8_t *ssrc = src;
419 int width = ((s->width * s->bpp) + 7) >> 3;
422 return AVERROR_INVALIDDATA;
425 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
426 uint8_t *src2 = NULL, *zbuf;
427 unsigned long outlen;
429 outlen = width * lines;
430 zbuf = av_malloc(outlen);
432 return AVERROR(ENOMEM);
434 src2 = av_malloc((unsigned)size + FF_INPUT_BUFFER_PADDING_SIZE);
436 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
438 return AVERROR(ENOMEM);
440 for (i = 0; i < size; i++)
441 src2[i] = ff_reverse[src[i]];
442 memset(src2 + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
445 ret = tiff_uncompress(zbuf, &outlen, src, size);
447 av_log(s->avctx, AV_LOG_ERROR,
448 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
449 (unsigned long)width * lines, ret);
452 return AVERROR_UNKNOWN;
455 for (line = 0; line < lines; line++) {
456 if(s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8){
457 horizontal_fill(s->bpp, dst, 1, src, 0, width, 0);
459 memcpy(dst, src, width);
469 if (s->compr == TIFF_LZW) {
472 av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
473 if (!s->deinvert_buf)
474 return AVERROR(ENOMEM);
475 for (i = 0; i < size; i++)
476 s->deinvert_buf[i] = ff_reverse[src[i]];
477 src = s->deinvert_buf;
480 if (size > 1 && !src[0] && (src[1]&1)) {
481 av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
483 if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
484 av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
488 if (s->compr == TIFF_CCITT_RLE || s->compr == TIFF_G3
489 || s->compr == TIFF_G4) {
491 uint8_t *src2 = av_malloc((unsigned)size +
492 FF_INPUT_BUFFER_PADDING_SIZE);
495 av_log(s->avctx, AV_LOG_ERROR,
496 "Error allocating temporary buffer\n");
497 return AVERROR(ENOMEM);
499 if (s->fax_opts & 2) {
500 av_log(s->avctx, AV_LOG_ERROR,
501 "Uncompressed fax mode is not supported (yet)\n");
503 return AVERROR_INVALIDDATA;
505 if (!s->fill_order) {
506 memcpy(src2, src, size);
508 for (i = 0; i < size; i++)
509 src2[i] = ff_reverse[src[i]];
511 memset(src2 + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
516 ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
517 s->compr, s->fax_opts);
520 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
521 for (line = 0; line < lines; line++) {
522 horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
528 for (line = 0; line < lines; line++) {
529 if (src - ssrc > size) {
530 av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
531 return AVERROR_INVALIDDATA;
535 if (ssrc + size - src < width)
536 return AVERROR_INVALIDDATA;
537 if (!s->fill_order) {
538 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
539 dst, 1, src, 0, width, 0);
542 for (i = 0; i < width; i++)
543 dst[i] = ff_reverse[src[i]];
548 for (pixels = 0; pixels < width;) {
549 if (ssrc + size - src < 2) {
550 av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
551 return AVERROR_INVALIDDATA;
553 code = (int8_t) * src++;
556 if (pixels + code > width) {
557 av_log(s->avctx, AV_LOG_ERROR,
558 "Copy went out of bounds\n");
559 return AVERROR_INVALIDDATA;
561 if (ssrc + size - src < code) {
562 av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
563 return AVERROR_INVALIDDATA;
565 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
566 dst, 1, src, 0, code, pixels);
569 } else if (code != -128) { // -127..-1
571 if (pixels + code > width) {
572 av_log(s->avctx, AV_LOG_ERROR,
573 "Run went out of bounds\n");
574 return AVERROR_INVALIDDATA;
577 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
578 dst, 0, NULL, c, code, pixels);
584 pixels = ff_lzw_decode(s->lzw, dst, width);
585 if (pixels < width) {
586 av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
588 return AVERROR_INVALIDDATA;
590 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
591 horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
599 static int init_image(TiffContext *s, AVFrame *frame)
604 switch (s->bpp * 10 + s->bppcount) {
606 if (!s->palette_is_set) {
607 s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
613 s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
616 s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
619 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
622 s->avctx->pix_fmt = AV_PIX_FMT_GRAY8A;
625 s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
628 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
631 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
634 av_log(s->avctx, AV_LOG_ERROR,
635 "This format is not supported (bpp=%d, bppcount=%d)\n",
636 s->bpp, s->bppcount);
637 return AVERROR_INVALIDDATA;
639 if (s->width != s->avctx->width || s->height != s->avctx->height) {
640 if ((ret = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
642 avcodec_set_dimensions(s->avctx, s->width, s->height);
644 if ((ret = ff_get_buffer(s->avctx, frame, 0)) < 0)
646 if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
647 if (s->palette_is_set) {
648 memcpy(frame->data[1], s->palette, sizeof(s->palette));
650 /* make default grayscale pal */
651 pal = (uint32_t *) frame->data[1];
652 for (i = 0; i < 1<<s->bpp; i++)
653 pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
659 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
661 unsigned tag, type, count, off, value = 0;
662 int i, j, k, pos, start;
667 tag = tget_short(&s->gb, s->le);
668 type = tget_short(&s->gb, s->le);
669 count = tget_long(&s->gb, s->le);
670 off = tget_long(&s->gb, s->le);
671 start = bytestream2_tell(&s->gb);
673 if (type == 0 || type >= FF_ARRAY_ELEMS(type_sizes)) {
674 av_log(s->avctx, AV_LOG_DEBUG, "Unknown tiff type (%u) encountered\n",
683 bytestream2_seek(&s->gb, -4, SEEK_CUR);
684 value = tget(&s->gb, type, s->le);
691 bytestream2_seek(&s->gb, -4, SEEK_CUR);
696 bytestream2_seek(&s->gb, off, SEEK_SET);
699 if (count <= 4 && type_sizes[type] * count <= 4) {
700 bytestream2_seek(&s->gb, -4, SEEK_CUR);
702 bytestream2_seek(&s->gb, off, SEEK_SET);
716 av_log(s->avctx, AV_LOG_ERROR,
717 "This format is not supported (bpp=%d, %d components)\n",
719 return AVERROR_INVALIDDATA;
726 s->bpp = (off & 0xFF) + ((off >> 8) & 0xFF) +
727 ((off >> 16) & 0xFF) + ((off >> 24) & 0xFF);
732 if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
733 return AVERROR_INVALIDDATA;
734 for (i = 0; i < count; i++)
735 s->bpp += tget(&s->gb, type, s->le);
742 case TIFF_SAMPLES_PER_PIXEL:
744 av_log(s->avctx, AV_LOG_ERROR,
745 "Samples per pixel requires a single value, many provided\n");
746 return AVERROR_INVALIDDATA;
749 av_log(s->avctx, AV_LOG_ERROR,
750 "Samples per pixel %d is too large\n", value);
751 return AVERROR_INVALIDDATA;
753 if (s->bppcount == 1)
771 case TIFF_ADOBE_DEFLATE:
775 av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
776 return AVERROR(ENOSYS);
780 av_log(s->avctx, AV_LOG_ERROR,
781 "JPEG compression is not supported\n");
782 return AVERROR_PATCHWELCOME;
784 av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
786 return AVERROR_INVALIDDATA;
789 case TIFF_ROWSPERSTRIP:
790 if (type == TIFF_LONG && value == UINT_MAX)
793 av_log(s->avctx, AV_LOG_ERROR,
794 "Incorrect value of rows per strip\n");
795 return AVERROR_INVALIDDATA;
799 case TIFF_STRIP_OFFS:
809 if (s->strippos > bytestream2_size(&s->gb)) {
810 av_log(s->avctx, AV_LOG_ERROR,
811 "Tag referencing position outside the image\n");
812 return AVERROR_INVALIDDATA;
815 case TIFF_STRIP_SIZE:
817 s->stripsizesoff = 0;
818 s->stripsize = value;
821 s->stripsizesoff = off;
825 if (s->stripsizesoff > bytestream2_size(&s->gb)) {
826 av_log(s->avctx, AV_LOG_ERROR,
827 "Tag referencing position outside the image\n");
828 return AVERROR_INVALIDDATA;
831 case TIFF_TILE_BYTE_COUNTS:
832 case TIFF_TILE_LENGTH:
833 case TIFF_TILE_OFFSETS:
834 case TIFF_TILE_WIDTH:
835 av_log(s->avctx, AV_LOG_ERROR, "Tiled images are not supported\n");
836 return AVERROR_PATCHWELCOME;
839 s->predictor = value;
853 av_log(s->avctx, AV_LOG_ERROR, "Color mode %d is not supported\n",
855 return AVERROR_INVALIDDATA;
858 case TIFF_FILL_ORDER:
859 if (value < 1 || value > 2) {
860 av_log(s->avctx, AV_LOG_ERROR,
861 "Unknown FillOrder value %d, trying default one\n", value);
864 s->fill_order = value - 1;
867 pal = (uint32_t *) s->palette;
868 off = type_sizes[type];
869 if (count / 3 > 256 || bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
870 return AVERROR_INVALIDDATA;
871 off = (type_sizes[type] - 1) << 3;
872 for (k = 2; k >= 0; k--) {
873 for (i = 0; i < count / 3; i++) {
875 pal[i] = 0xFFU << 24;
876 j = (tget(&s->gb, type, s->le) >> off) << (k * 8);
880 s->palette_is_set = 1;
884 av_log(s->avctx, AV_LOG_ERROR, "Planar format is not supported\n");
885 return AVERROR_PATCHWELCOME;
889 if (s->compr == TIFF_G3)
893 if (s->compr == TIFF_G4)
896 #define ADD_METADATA(count, name, sep)\
897 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
898 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
901 case TIFF_MODEL_PIXEL_SCALE:
902 ADD_METADATA(count, "ModelPixelScaleTag", NULL);
904 case TIFF_MODEL_TRANSFORMATION:
905 ADD_METADATA(count, "ModelTransformationTag", NULL);
907 case TIFF_MODEL_TIEPOINT:
908 ADD_METADATA(count, "ModelTiepointTag", NULL);
910 case TIFF_GEO_KEY_DIRECTORY:
911 ADD_METADATA(1, "GeoTIFF_Version", NULL);
912 ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
913 s->geotag_count = tget_short(&s->gb, s->le);
914 if (s->geotag_count > count / 4 - 1) {
915 s->geotag_count = count / 4 - 1;
916 av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
918 if (bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4) {
922 s->geotags = av_mallocz(sizeof(TiffGeoTag) * s->geotag_count);
924 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
926 return AVERROR(ENOMEM);
928 for (i = 0; i < s->geotag_count; i++) {
929 s->geotags[i].key = tget_short(&s->gb, s->le);
930 s->geotags[i].type = tget_short(&s->gb, s->le);
931 s->geotags[i].count = tget_short(&s->gb, s->le);
933 if (!s->geotags[i].type)
934 s->geotags[i].val = get_geokey_val(s->geotags[i].key, tget_short(&s->gb, s->le));
936 s->geotags[i].offset = tget_short(&s->gb, s->le);
939 case TIFF_GEO_DOUBLE_PARAMS:
940 if (count >= INT_MAX / sizeof(int64_t))
941 return AVERROR_INVALIDDATA;
942 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
943 return AVERROR_INVALIDDATA;
944 dp = av_malloc(count * sizeof(double));
946 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
947 return AVERROR(ENOMEM);
949 for (i = 0; i < count; i++)
950 dp[i] = tget_double(&s->gb, s->le);
951 for (i = 0; i < s->geotag_count; i++) {
952 if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
953 if (s->geotags[i].count == 0
954 || s->geotags[i].offset + s->geotags[i].count > count) {
955 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
957 char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
959 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
961 return AVERROR(ENOMEM);
963 s->geotags[i].val = ap;
969 case TIFF_GEO_ASCII_PARAMS:
970 pos = bytestream2_tell(&s->gb);
971 for (i = 0; i < s->geotag_count; i++) {
972 if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
973 if (s->geotags[i].count == 0
974 || s->geotags[i].offset + s->geotags[i].count > count) {
975 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
979 bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
980 if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
981 return AVERROR_INVALIDDATA;
982 ap = av_malloc(s->geotags[i].count);
984 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
985 return AVERROR(ENOMEM);
987 bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
988 ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
989 s->geotags[i].val = ap;
995 ADD_METADATA(count, "artist", NULL);
998 ADD_METADATA(count, "copyright", NULL);
1001 ADD_METADATA(count, "date", NULL);
1003 case TIFF_DOCUMENT_NAME:
1004 ADD_METADATA(count, "document_name", NULL);
1006 case TIFF_HOST_COMPUTER:
1007 ADD_METADATA(count, "computer", NULL);
1009 case TIFF_IMAGE_DESCRIPTION:
1010 ADD_METADATA(count, "description", NULL);
1013 ADD_METADATA(count, "make", NULL);
1016 ADD_METADATA(count, "model", NULL);
1018 case TIFF_PAGE_NAME:
1019 ADD_METADATA(count, "page_name", NULL);
1021 case TIFF_PAGE_NUMBER:
1022 ADD_METADATA(count, "page_number", " / ");
1024 case TIFF_SOFTWARE_NAME:
1025 ADD_METADATA(count, "software", NULL);
1028 av_log(s->avctx, AV_LOG_DEBUG, "Unknown or unsupported tag %d/0X%0X\n",
1031 bytestream2_seek(&s->gb, start, SEEK_SET);
1035 static int decode_frame(AVCodecContext *avctx,
1036 void *data, int *got_frame, AVPacket *avpkt)
1038 TiffContext *const s = avctx->priv_data;
1039 AVFrame *const p = data;
1044 unsigned soff, ssize;
1046 GetByteContext stripsizes;
1047 GetByteContext stripdata;
1049 bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1051 //parse image header
1052 if (avpkt->size < 8)
1053 return AVERROR_INVALIDDATA;
1054 id = bytestream2_get_le16u(&s->gb);
1057 else if (id == 0x4D4D)
1060 av_log(avctx, AV_LOG_ERROR, "TIFF header not found\n");
1061 return AVERROR_INVALIDDATA;
1064 // TIFF_BPP is not a required tag and defaults to 1
1065 s->bppcount = s->bpp = 1;
1067 s->compr = TIFF_RAW;
1071 // As TIFF 6.0 specification puts it "An arbitrary but carefully chosen number
1072 // that further identifies the file as a TIFF file"
1073 if (tget_short(&s->gb, le) != 42) {
1074 av_log(avctx, AV_LOG_ERROR,
1075 "The answer to life, universe and everything is not correct!\n");
1076 return AVERROR_INVALIDDATA;
1078 // Reset these offsets so we can tell if they were set this frame
1079 s->stripsizesoff = s->strippos = 0;
1080 /* parse image file directory */
1081 off = tget_long(&s->gb, le);
1082 if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1083 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1084 return AVERROR_INVALIDDATA;
1086 bytestream2_seek(&s->gb, off, SEEK_SET);
1087 entries = tget_short(&s->gb, le);
1088 if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1089 return AVERROR_INVALIDDATA;
1090 for (i = 0; i < entries; i++) {
1091 if ((ret = tiff_decode_tag(s, p)) < 0)
1095 for (i = 0; i<s->geotag_count; i++) {
1096 const char *keyname = get_geokey_name(s->geotags[i].key);
1098 av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
1101 if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
1102 av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
1105 ret = av_dict_set(avpriv_frame_get_metadatap(p), keyname, s->geotags[i].val, 0);
1107 av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
1112 if (!s->strippos && !s->stripoff) {
1113 av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
1114 return AVERROR_INVALIDDATA;
1116 /* now we have the data and may start decoding */
1117 if ((ret = init_image(s, p)) < 0)
1120 if (s->strips == 1 && !s->stripsize) {
1121 av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
1122 s->stripsize = avpkt->size - s->stripoff;
1124 stride = p->linesize[0];
1127 if (s->stripsizesoff) {
1128 if (s->stripsizesoff >= (unsigned)avpkt->size)
1129 return AVERROR_INVALIDDATA;
1130 bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff, avpkt->size - s->stripsizesoff);
1133 if (s->strippos >= (unsigned)avpkt->size)
1134 return AVERROR_INVALIDDATA;
1135 bytestream2_init(&stripdata, avpkt->data + s->strippos, avpkt->size - s->strippos);
1139 av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1140 return AVERROR_INVALIDDATA;
1143 for (i = 0; i < s->height; i += s->rps) {
1144 if (s->stripsizesoff)
1145 ssize = tget(&stripsizes, s->sstype, s->le);
1147 ssize = s->stripsize;
1150 soff = tget(&stripdata, s->sot, s->le);
1154 if (soff > avpkt->size || ssize > avpkt->size - soff) {
1155 av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
1156 return AVERROR_INVALIDDATA;
1158 if (tiff_unpack_strip(s, dst, stride, avpkt->data + soff, ssize,
1159 FFMIN(s->rps, s->height - i)) < 0)
1161 dst += s->rps * stride;
1163 if (s->predictor == 2) {
1166 ssize = s->width * soff;
1167 if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
1168 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE) {
1169 for (i = 0; i < s->height; i++) {
1170 for (j = soff; j < ssize; j += 2)
1171 AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
1174 } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
1175 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) {
1176 for (i = 0; i < s->height; i++) {
1177 for (j = soff; j < ssize; j += 2)
1178 AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
1182 for (i = 0; i < s->height; i++) {
1183 for (j = soff; j < ssize; j++)
1184 dst[j] += dst[j - soff];
1192 for (i = 0; i < s->height; i++) {
1193 for (j = 0; j < p->linesize[0]; j++)
1194 dst[j] = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255) - dst[j];
1195 dst += p->linesize[0];
1203 static av_cold int tiff_init(AVCodecContext *avctx)
1205 TiffContext *s = avctx->priv_data;
1210 ff_lzw_decode_open(&s->lzw);
1211 ff_ccitt_unpack_init();
1216 static av_cold int tiff_end(AVCodecContext *avctx)
1218 TiffContext *const s = avctx->priv_data;
1222 ff_lzw_decode_close(&s->lzw);
1223 av_freep(&s->deinvert_buf);
1227 AVCodec ff_tiff_decoder = {
1229 .type = AVMEDIA_TYPE_VIDEO,
1230 .id = AV_CODEC_ID_TIFF,
1231 .priv_data_size = sizeof(TiffContext),
1234 .decode = decode_frame,
1235 .capabilities = CODEC_CAP_DR1,
1236 .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),