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
32 #include "libavutil/attributes.h"
33 #include "libavutil/avstring.h"
34 #include "libavutil/intreadwrite.h"
35 #include "libavutil/imgutils.h"
37 #include "bytestream.h"
43 #include "tiff_data.h"
46 typedef struct TiffContext {
47 AVCodecContext *avctx;
51 unsigned int bpp, bppcount;
52 uint32_t palette[256];
62 int strips, rps, sstype;
64 int stripsizesoff, stripsize, stripoff, strippos;
67 uint8_t *deinvert_buf;
68 int deinvert_buf_size;
74 static void free_geotags(TiffContext *const s)
77 for (i = 0; i < s->geotag_count; i++) {
78 if (s->geotags[i].val)
79 av_freep(&s->geotags[i].val);
81 av_freep(&s->geotags);
84 #define RET_GEOKEY(TYPE, array, element)\
85 if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
86 key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_name_type_map))\
87 return ff_tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].element;
89 static const char *get_geokey_name(int key)
91 RET_GEOKEY(VERT, vert, name);
92 RET_GEOKEY(PROJ, proj, name);
93 RET_GEOKEY(GEOG, geog, name);
94 RET_GEOKEY(CONF, conf, name);
99 static int get_geokey_type(int key)
101 RET_GEOKEY(VERT, vert, type);
102 RET_GEOKEY(PROJ, proj, type);
103 RET_GEOKEY(GEOG, geog, type);
104 RET_GEOKEY(CONF, conf, type);
106 return AVERROR_INVALIDDATA;
109 static int cmp_id_key(const void *id, const void *k)
111 return *(const int*)id - ((const TiffGeoTagKeyName*)k)->key;
114 static const char *search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
116 TiffGeoTagKeyName *r = bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key);
123 static char *get_geokey_val(int key, int val)
127 if (val == TIFF_GEO_KEY_UNDEFINED)
128 return av_strdup("undefined");
129 if (val == TIFF_GEO_KEY_USER_DEFINED)
130 return av_strdup("User-Defined");
132 #define RET_GEOKEY_VAL(TYPE, array)\
133 if (val >= TIFF_##TYPE##_OFFSET &&\
134 val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_codes))\
135 return av_strdup(ff_tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET]);
138 case TIFF_GT_MODEL_TYPE_GEOKEY:
139 RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
141 case TIFF_GT_RASTER_TYPE_GEOKEY:
142 RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
144 case TIFF_GEOG_LINEAR_UNITS_GEOKEY:
145 case TIFF_PROJ_LINEAR_UNITS_GEOKEY:
146 case TIFF_VERTICAL_UNITS_GEOKEY:
147 RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
149 case TIFF_GEOG_ANGULAR_UNITS_GEOKEY:
150 case TIFF_GEOG_AZIMUTH_UNITS_GEOKEY:
151 RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
153 case TIFF_GEOGRAPHIC_TYPE_GEOKEY:
154 RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
155 RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
157 case TIFF_GEOG_GEODETIC_DATUM_GEOKEY:
158 RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
159 RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
161 case TIFF_GEOG_ELLIPSOID_GEOKEY:
162 RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
164 case TIFF_GEOG_PRIME_MERIDIAN_GEOKEY:
165 RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
167 case TIFF_PROJECTED_CS_TYPE_GEOKEY:
168 ap = av_strdup(search_keyval(ff_tiff_proj_cs_type_codes, FF_ARRAY_ELEMS(ff_tiff_proj_cs_type_codes), val));
171 case TIFF_PROJECTION_GEOKEY:
172 ap = av_strdup(search_keyval(ff_tiff_projection_codes, FF_ARRAY_ELEMS(ff_tiff_projection_codes), val));
175 case TIFF_PROJ_COORD_TRANS_GEOKEY:
176 RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
178 case TIFF_VERTICAL_CS_TYPE_GEOKEY:
179 RET_GEOKEY_VAL(VERT_CS, vert_cs);
180 RET_GEOKEY_VAL(ORTHO_VERT_CS, ortho_vert_cs);
187 snprintf(ap, 14, "Unknown-%d", val);
191 static char *doubles2str(double *dp, int count, const char *sep)
195 uint64_t component_len;
196 if (!sep) sep = ", ";
197 component_len = 15LL + strlen(sep);
198 if (count >= (INT_MAX - 1)/component_len)
200 ap = av_malloc(component_len * count + 1);
205 for (i = 0; i < count; i++) {
206 unsigned l = snprintf(ap, component_len, "%f%s", dp[i], sep);
207 if(l >= component_len) {
213 ap0[strlen(ap0) - strlen(sep)] = '\0';
217 static int add_metadata(int count, int type,
218 const char *name, const char *sep, TiffContext *s, AVFrame *frame)
221 case TIFF_DOUBLE: return ff_tadd_doubles_metadata(count, name, sep, &s->gb, s->le, avpriv_frame_get_metadatap(frame));
222 case TIFF_SHORT : return ff_tadd_shorts_metadata(count, name, sep, &s->gb, s->le, avpriv_frame_get_metadatap(frame));
223 case TIFF_STRING: return ff_tadd_string_metadata(count, name, &s->gb, s->le, avpriv_frame_get_metadatap(frame));
224 default : return AVERROR_INVALIDDATA;
228 static void av_always_inline horizontal_fill(unsigned int bpp, uint8_t* dst,
229 int usePtr, const uint8_t *src,
230 uint8_t c, int width, int offset)
234 while (--width >= 0) {
235 dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
236 dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
237 dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
238 dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
239 dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
240 dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
241 dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
242 dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
246 while (--width >= 0) {
247 dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
248 dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
249 dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
250 dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
254 while (--width >= 0) {
255 dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
256 dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
261 memcpy(dst + offset, src, width);
263 memset(dst + offset, c, width);
268 static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
272 av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
273 if (!s->deinvert_buf)
274 return AVERROR(ENOMEM);
275 for (i = 0; i < size; i++)
276 s->deinvert_buf[i] = ff_reverse[src[i]];
282 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
285 z_stream zstream = { 0 };
288 zstream.next_in = (uint8_t *)src;
289 zstream.avail_in = size;
290 zstream.next_out = dst;
291 zstream.avail_out = *len;
292 zret = inflateInit(&zstream);
294 av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
297 zret = inflate(&zstream, Z_SYNC_FLUSH);
298 inflateEnd(&zstream);
299 *len = zstream.total_out;
300 return zret == Z_STREAM_END ? Z_OK : zret;
303 static int tiff_unpack_zlib(TiffContext *s, uint8_t *dst, int stride,
304 const uint8_t *src, int size,
305 int width, int lines)
308 unsigned long outlen;
310 outlen = width * lines;
311 zbuf = av_malloc(outlen);
313 return AVERROR(ENOMEM);
315 if ((ret = deinvert_buffer(s, src, size)) < 0) {
319 src = s->deinvert_buf;
321 ret = tiff_uncompress(zbuf, &outlen, src, size);
323 av_log(s->avctx, AV_LOG_ERROR,
324 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
325 (unsigned long)width * lines, ret);
327 return AVERROR_UNKNOWN;
330 for (line = 0; line < lines; line++) {
331 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
332 horizontal_fill(s->bpp, dst, 1, src, 0, width, 0);
334 memcpy(dst, src, width);
345 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
346 const uint8_t *src, int size, int width, int lines)
350 uint8_t *src2 = av_malloc((unsigned)size +
351 FF_INPUT_BUFFER_PADDING_SIZE);
354 av_log(s->avctx, AV_LOG_ERROR,
355 "Error allocating temporary buffer\n");
356 return AVERROR(ENOMEM);
358 if (s->fax_opts & 2) {
359 avpriv_request_sample(s->avctx, "Uncompressed fax mode");
361 return AVERROR_PATCHWELCOME;
363 if (!s->fill_order) {
364 memcpy(src2, src, size);
366 for (i = 0; i < size; i++)
367 src2[i] = ff_reverse[src[i]];
369 memset(src2 + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
370 ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
371 s->compr, s->fax_opts);
372 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
373 for (line = 0; line < lines; line++) {
374 horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
381 static int tiff_unpack_strip(TiffContext *s, uint8_t *dst, int stride,
382 const uint8_t *src, int size, int lines)
384 int c, line, pixels, code, ret;
385 const uint8_t *ssrc = src;
386 int width = ((s->width * s->bpp) + 7) >> 3;
389 width /= s->bppcount;
392 return AVERROR_INVALIDDATA;
394 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
396 return tiff_unpack_zlib(s, dst, stride, src, size, width, lines);
398 av_log(s->avctx, AV_LOG_ERROR,
399 "zlib support not enabled, "
400 "deflate compression not supported\n");
401 return AVERROR(ENOSYS);
404 if (s->compr == TIFF_LZW) {
406 if ((ret = deinvert_buffer(s, src, size)) < 0)
408 ssrc = src = s->deinvert_buf;
410 if (size > 1 && !src[0] && (src[1]&1)) {
411 av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
413 if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
414 av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
418 if (s->compr == TIFF_CCITT_RLE ||
419 s->compr == TIFF_G3 ||
420 s->compr == TIFF_G4) {
421 return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
423 for (line = 0; line < lines; line++) {
424 if (src - ssrc > size) {
425 av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
426 return AVERROR_INVALIDDATA;
430 if (ssrc + size - src < width)
431 return AVERROR_INVALIDDATA;
432 if (!s->fill_order) {
433 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
434 dst, 1, src, 0, width, 0);
437 for (i = 0; i < width; i++)
438 dst[i] = ff_reverse[src[i]];
443 for (pixels = 0; pixels < width;) {
444 if (ssrc + size - src < 2) {
445 av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
446 return AVERROR_INVALIDDATA;
448 code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
451 if (pixels + code > width ||
452 ssrc + size - src < code) {
453 av_log(s->avctx, AV_LOG_ERROR,
454 "Copy went out of bounds\n");
455 return AVERROR_INVALIDDATA;
457 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
458 dst, 1, src, 0, code, pixels);
461 } else if (code != -128) { // -127..-1
463 if (pixels + code > width) {
464 av_log(s->avctx, AV_LOG_ERROR,
465 "Run went out of bounds\n");
466 return AVERROR_INVALIDDATA;
469 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
470 dst, 0, NULL, c, code, pixels);
476 for (i = 0; i < width; i++)
477 dst[i] = ff_reverse[dst[i]];
481 pixels = ff_lzw_decode(s->lzw, dst, width);
482 if (pixels < width) {
483 av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
485 return AVERROR_INVALIDDATA;
487 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
488 horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
496 static int init_image(TiffContext *s, ThreadFrame *frame)
501 switch (s->planar * 1000 + s->bpp * 10 + s->bppcount) {
503 if (!s->palette_is_set) {
504 s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
510 s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
513 s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
516 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
519 s->avctx->pix_fmt = AV_PIX_FMT_GRAY8A;
522 s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
525 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
528 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
531 s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
534 s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
537 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE;
540 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE;
543 av_log(s->avctx, AV_LOG_ERROR,
544 "This format is not supported (bpp=%d, bppcount=%d)\n",
545 s->bpp, s->bppcount);
546 return AVERROR_INVALIDDATA;
548 if (s->width != s->avctx->width || s->height != s->avctx->height) {
549 ret = ff_set_dimensions(s->avctx, s->width, s->height);
553 if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
555 if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
556 if (s->palette_is_set) {
557 memcpy(frame->f->data[1], s->palette, sizeof(s->palette));
559 /* make default grayscale pal */
560 pal = (uint32_t *) frame->f->data[1];
561 for (i = 0; i < 1<<s->bpp; i++)
562 pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
568 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
570 unsigned tag, type, count, off, value = 0;
571 int i, j, k, pos, start;
576 ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
581 off = bytestream2_tell(&s->gb);
587 value = ff_tget(&s->gb, type, s->le);
608 av_log(s->avctx, AV_LOG_ERROR,
609 "This format is not supported (bpp=%d, %d components)\n",
611 return AVERROR_INVALIDDATA;
621 if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
622 return AVERROR_INVALIDDATA;
623 for (i = 0; i < count; i++)
624 s->bpp += ff_tget(&s->gb, type, s->le);
631 case TIFF_SAMPLES_PER_PIXEL:
633 av_log(s->avctx, AV_LOG_ERROR,
634 "Samples per pixel requires a single value, many provided\n");
635 return AVERROR_INVALIDDATA;
638 av_log(s->avctx, AV_LOG_ERROR,
639 "Samples per pixel %d is too large\n", value);
640 return AVERROR_INVALIDDATA;
642 if (s->bppcount == 1)
660 case TIFF_ADOBE_DEFLATE:
664 av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
665 return AVERROR(ENOSYS);
669 avpriv_report_missing_feature(s->avctx, "JPEG compression");
670 return AVERROR_PATCHWELCOME;
672 av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
674 return AVERROR_INVALIDDATA;
677 case TIFF_ROWSPERSTRIP:
678 if (type == TIFF_LONG && value == UINT_MAX)
681 av_log(s->avctx, AV_LOG_ERROR,
682 "Incorrect value of rows per strip\n");
683 return AVERROR_INVALIDDATA;
687 case TIFF_STRIP_OFFS:
697 if (s->strippos > bytestream2_size(&s->gb)) {
698 av_log(s->avctx, AV_LOG_ERROR,
699 "Tag referencing position outside the image\n");
700 return AVERROR_INVALIDDATA;
703 case TIFF_STRIP_SIZE:
705 s->stripsizesoff = 0;
706 s->stripsize = value;
709 s->stripsizesoff = off;
713 if (s->stripsizesoff > bytestream2_size(&s->gb)) {
714 av_log(s->avctx, AV_LOG_ERROR,
715 "Tag referencing position outside the image\n");
716 return AVERROR_INVALIDDATA;
719 case TIFF_TILE_BYTE_COUNTS:
720 case TIFF_TILE_LENGTH:
721 case TIFF_TILE_OFFSETS:
722 case TIFF_TILE_WIDTH:
723 av_log(s->avctx, AV_LOG_ERROR, "Tiled images are not supported\n");
724 return AVERROR_PATCHWELCOME;
727 s->predictor = value;
741 av_log(s->avctx, AV_LOG_ERROR, "Color mode %d is not supported\n",
743 return AVERROR_INVALIDDATA;
746 case TIFF_FILL_ORDER:
747 if (value < 1 || value > 2) {
748 av_log(s->avctx, AV_LOG_ERROR,
749 "Unknown FillOrder value %d, trying default one\n", value);
752 s->fill_order = value - 1;
755 pal = (uint32_t *) s->palette;
756 off = type_sizes[type];
757 if (count / 3 > 256 || bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
758 return AVERROR_INVALIDDATA;
759 off = (type_sizes[type] - 1) << 3;
760 for (k = 2; k >= 0; k--) {
761 for (i = 0; i < count / 3; i++) {
763 pal[i] = 0xFFU << 24;
764 j = (ff_tget(&s->gb, type, s->le) >> off) << (k * 8);
768 s->palette_is_set = 1;
771 s->planar = value == 2;
774 if (s->compr == TIFF_G3)
778 if (s->compr == TIFF_G4)
781 #define ADD_METADATA(count, name, sep)\
782 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
783 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
786 case TIFF_MODEL_PIXEL_SCALE:
787 ADD_METADATA(count, "ModelPixelScaleTag", NULL);
789 case TIFF_MODEL_TRANSFORMATION:
790 ADD_METADATA(count, "ModelTransformationTag", NULL);
792 case TIFF_MODEL_TIEPOINT:
793 ADD_METADATA(count, "ModelTiepointTag", NULL);
795 case TIFF_GEO_KEY_DIRECTORY:
796 ADD_METADATA(1, "GeoTIFF_Version", NULL);
797 ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
798 s->geotag_count = ff_tget_short(&s->gb, s->le);
799 if (s->geotag_count > count / 4 - 1) {
800 s->geotag_count = count / 4 - 1;
801 av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
803 if (bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4) {
807 s->geotags = av_mallocz(sizeof(TiffGeoTag) * s->geotag_count);
809 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
813 for (i = 0; i < s->geotag_count; i++) {
814 s->geotags[i].key = ff_tget_short(&s->gb, s->le);
815 s->geotags[i].type = ff_tget_short(&s->gb, s->le);
816 s->geotags[i].count = ff_tget_short(&s->gb, s->le);
818 if (!s->geotags[i].type)
819 s->geotags[i].val = get_geokey_val(s->geotags[i].key, ff_tget_short(&s->gb, s->le));
821 s->geotags[i].offset = ff_tget_short(&s->gb, s->le);
824 case TIFF_GEO_DOUBLE_PARAMS:
825 if (count >= INT_MAX / sizeof(int64_t))
826 return AVERROR_INVALIDDATA;
827 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
828 return AVERROR_INVALIDDATA;
829 dp = av_malloc(count * sizeof(double));
831 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
834 for (i = 0; i < count; i++)
835 dp[i] = ff_tget_double(&s->gb, s->le);
836 for (i = 0; i < s->geotag_count; i++) {
837 if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
838 if (s->geotags[i].count == 0
839 || s->geotags[i].offset + s->geotags[i].count > count) {
840 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
842 char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
844 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
846 return AVERROR(ENOMEM);
848 s->geotags[i].val = ap;
854 case TIFF_GEO_ASCII_PARAMS:
855 pos = bytestream2_tell(&s->gb);
856 for (i = 0; i < s->geotag_count; i++) {
857 if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
858 if (s->geotags[i].count == 0
859 || s->geotags[i].offset + s->geotags[i].count > count) {
860 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
864 bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
865 if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
866 return AVERROR_INVALIDDATA;
867 ap = av_malloc(s->geotags[i].count);
869 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
870 return AVERROR(ENOMEM);
872 bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
873 ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
874 s->geotags[i].val = ap;
880 ADD_METADATA(count, "artist", NULL);
883 ADD_METADATA(count, "copyright", NULL);
886 ADD_METADATA(count, "date", NULL);
888 case TIFF_DOCUMENT_NAME:
889 ADD_METADATA(count, "document_name", NULL);
891 case TIFF_HOST_COMPUTER:
892 ADD_METADATA(count, "computer", NULL);
894 case TIFF_IMAGE_DESCRIPTION:
895 ADD_METADATA(count, "description", NULL);
898 ADD_METADATA(count, "make", NULL);
901 ADD_METADATA(count, "model", NULL);
904 ADD_METADATA(count, "page_name", NULL);
906 case TIFF_PAGE_NUMBER:
907 ADD_METADATA(count, "page_number", " / ");
909 case TIFF_SOFTWARE_NAME:
910 ADD_METADATA(count, "software", NULL);
913 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
914 av_log(s->avctx, AV_LOG_ERROR,
915 "Unknown or unsupported tag %d/0X%0X\n",
917 return AVERROR_INVALIDDATA;
921 bytestream2_seek(&s->gb, start, SEEK_SET);
925 static int decode_frame(AVCodecContext *avctx,
926 void *data, int *got_frame, AVPacket *avpkt)
928 TiffContext *const s = avctx->priv_data;
929 AVFrame *const p = data;
930 ThreadFrame frame = { .f = data };
932 int le, ret, plane, planes;
933 int i, j, entries, stride;
934 unsigned soff, ssize;
936 GetByteContext stripsizes;
937 GetByteContext stripdata;
939 bytestream2_init(&s->gb, avpkt->data, avpkt->size);
941 // parse image header
942 if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
943 av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
945 } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
946 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
947 return AVERROR_INVALIDDATA;
950 // TIFF_BPP is not a required tag and defaults to 1
951 s->bppcount = s->bpp = 1;
957 // Reset these offsets so we can tell if they were set this frame
958 s->stripsizesoff = s->strippos = 0;
959 /* parse image file directory */
960 bytestream2_seek(&s->gb, off, SEEK_SET);
961 entries = ff_tget_short(&s->gb, le);
962 if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
963 return AVERROR_INVALIDDATA;
964 for (i = 0; i < entries; i++) {
965 if ((ret = tiff_decode_tag(s, p)) < 0)
969 for (i = 0; i<s->geotag_count; i++) {
970 const char *keyname = get_geokey_name(s->geotags[i].key);
972 av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
975 if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
976 av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
979 ret = av_dict_set(avpriv_frame_get_metadatap(p), keyname, s->geotags[i].val, 0);
981 av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
986 if (!s->strippos && !s->stripoff) {
987 av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
988 return AVERROR_INVALIDDATA;
990 /* now we have the data and may start decoding */
991 if ((ret = init_image(s, &frame)) < 0)
994 if (s->strips == 1 && !s->stripsize) {
995 av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
996 s->stripsize = avpkt->size - s->stripoff;
999 if (s->stripsizesoff) {
1000 if (s->stripsizesoff >= (unsigned)avpkt->size)
1001 return AVERROR_INVALIDDATA;
1002 bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff, avpkt->size - s->stripsizesoff);
1005 if (s->strippos >= (unsigned)avpkt->size)
1006 return AVERROR_INVALIDDATA;
1007 bytestream2_init(&stripdata, avpkt->data + s->strippos, avpkt->size - s->strippos);
1011 av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1012 return AVERROR_INVALIDDATA;
1015 planes = s->planar ? s->bppcount : 1;
1016 for (plane = 0; plane < planes; plane++) {
1017 stride = p->linesize[plane];
1018 dst = p->data[plane];
1019 for (i = 0; i < s->height; i += s->rps) {
1020 if (s->stripsizesoff)
1021 ssize = ff_tget(&stripsizes, s->sstype, s->le);
1023 ssize = s->stripsize;
1026 soff = ff_tget(&stripdata, s->sot, s->le);
1030 if (soff > avpkt->size || ssize > avpkt->size - soff) {
1031 av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
1032 return AVERROR_INVALIDDATA;
1034 if ((ret = tiff_unpack_strip(s, dst, stride, avpkt->data + soff, ssize,
1035 FFMIN(s->rps, s->height - i))) < 0) {
1036 if (avctx->err_recognition & AV_EF_EXPLODE)
1040 dst += s->rps * stride;
1042 if (s->predictor == 2) {
1043 dst = p->data[plane];
1046 soff = FFMAX(soff / s->bppcount, 1);
1047 ssize = s->width * soff;
1048 if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
1049 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
1050 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
1051 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
1052 for (i = 0; i < s->height; i++) {
1053 for (j = soff; j < ssize; j += 2)
1054 AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
1057 } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
1058 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
1059 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
1060 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
1061 for (i = 0; i < s->height; i++) {
1062 for (j = soff; j < ssize; j += 2)
1063 AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
1067 for (i = 0; i < s->height; i++) {
1068 for (j = soff; j < ssize; j++)
1069 dst[j] += dst[j - soff];
1076 dst = p->data[plane];
1077 for (i = 0; i < s->height; i++) {
1078 for (j = 0; j < p->linesize[plane]; j++)
1079 dst[j] = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255) - dst[j];
1080 dst += p->linesize[plane];
1085 if (s->planar && s->bppcount > 2) {
1086 FFSWAP(uint8_t*, p->data[0], p->data[2]);
1087 FFSWAP(int, p->linesize[0], p->linesize[2]);
1088 FFSWAP(uint8_t*, p->data[0], p->data[1]);
1089 FFSWAP(int, p->linesize[0], p->linesize[1]);
1097 static av_cold int tiff_init(AVCodecContext *avctx)
1099 TiffContext *s = avctx->priv_data;
1104 ff_lzw_decode_open(&s->lzw);
1105 ff_ccitt_unpack_init();
1110 static av_cold int tiff_end(AVCodecContext *avctx)
1112 TiffContext *const s = avctx->priv_data;
1116 ff_lzw_decode_close(&s->lzw);
1117 av_freep(&s->deinvert_buf);
1121 AVCodec ff_tiff_decoder = {
1123 .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
1124 .type = AVMEDIA_TYPE_VIDEO,
1125 .id = AV_CODEC_ID_TIFF,
1126 .priv_data_size = sizeof(TiffContext),
1129 .decode = decode_frame,
1130 .init_thread_copy = ONLY_IF_THREADS_ENABLED(tiff_init),
1131 .capabilities = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS,