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];
63 int strips, rps, sstype;
65 int stripsizesoff, stripsize, stripoff, strippos;
68 uint8_t *deinvert_buf;
69 int deinvert_buf_size;
75 static void free_geotags(TiffContext *const s)
78 for (i = 0; i < s->geotag_count; i++) {
79 if (s->geotags[i].val)
80 av_freep(&s->geotags[i].val);
82 av_freep(&s->geotags);
86 #define RET_GEOKEY(TYPE, array, element)\
87 if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
88 key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_name_type_map))\
89 return ff_tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].element;
91 static const char *get_geokey_name(int key)
93 RET_GEOKEY(VERT, vert, name);
94 RET_GEOKEY(PROJ, proj, name);
95 RET_GEOKEY(GEOG, geog, name);
96 RET_GEOKEY(CONF, conf, name);
101 static int get_geokey_type(int key)
103 RET_GEOKEY(VERT, vert, type);
104 RET_GEOKEY(PROJ, proj, type);
105 RET_GEOKEY(GEOG, geog, type);
106 RET_GEOKEY(CONF, conf, type);
108 return AVERROR_INVALIDDATA;
111 static int cmp_id_key(const void *id, const void *k)
113 return *(const int*)id - ((const TiffGeoTagKeyName*)k)->key;
116 static const char *search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
118 TiffGeoTagKeyName *r = bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key);
125 static char *get_geokey_val(int key, int val)
129 if (val == TIFF_GEO_KEY_UNDEFINED)
130 return av_strdup("undefined");
131 if (val == TIFF_GEO_KEY_USER_DEFINED)
132 return av_strdup("User-Defined");
134 #define RET_GEOKEY_VAL(TYPE, array)\
135 if (val >= TIFF_##TYPE##_OFFSET &&\
136 val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_codes))\
137 return av_strdup(ff_tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET]);
140 case TIFF_GT_MODEL_TYPE_GEOKEY:
141 RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
143 case TIFF_GT_RASTER_TYPE_GEOKEY:
144 RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
146 case TIFF_GEOG_LINEAR_UNITS_GEOKEY:
147 case TIFF_PROJ_LINEAR_UNITS_GEOKEY:
148 case TIFF_VERTICAL_UNITS_GEOKEY:
149 RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
151 case TIFF_GEOG_ANGULAR_UNITS_GEOKEY:
152 case TIFF_GEOG_AZIMUTH_UNITS_GEOKEY:
153 RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
155 case TIFF_GEOGRAPHIC_TYPE_GEOKEY:
156 RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
157 RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
159 case TIFF_GEOG_GEODETIC_DATUM_GEOKEY:
160 RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
161 RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
163 case TIFF_GEOG_ELLIPSOID_GEOKEY:
164 RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
166 case TIFF_GEOG_PRIME_MERIDIAN_GEOKEY:
167 RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
169 case TIFF_PROJECTED_CS_TYPE_GEOKEY:
170 ap = av_strdup(search_keyval(ff_tiff_proj_cs_type_codes, FF_ARRAY_ELEMS(ff_tiff_proj_cs_type_codes), val));
173 case TIFF_PROJECTION_GEOKEY:
174 ap = av_strdup(search_keyval(ff_tiff_projection_codes, FF_ARRAY_ELEMS(ff_tiff_projection_codes), val));
177 case TIFF_PROJ_COORD_TRANS_GEOKEY:
178 RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
180 case TIFF_VERTICAL_CS_TYPE_GEOKEY:
181 RET_GEOKEY_VAL(VERT_CS, vert_cs);
182 RET_GEOKEY_VAL(ORTHO_VERT_CS, ortho_vert_cs);
189 snprintf(ap, 14, "Unknown-%d", val);
193 static char *doubles2str(double *dp, int count, const char *sep)
197 uint64_t component_len;
198 if (!sep) sep = ", ";
199 component_len = 24LL + strlen(sep);
200 if (count >= (INT_MAX - 1)/component_len)
202 ap = av_malloc(component_len * count + 1);
207 for (i = 0; i < count; i++) {
208 unsigned l = snprintf(ap, component_len, "%.15g%s", dp[i], sep);
209 if(l >= component_len) {
215 ap0[strlen(ap0) - strlen(sep)] = '\0';
219 static int add_metadata(int count, int type,
220 const char *name, const char *sep, TiffContext *s, AVFrame *frame)
223 case TIFF_DOUBLE: return ff_tadd_doubles_metadata(count, name, sep, &s->gb, s->le, avpriv_frame_get_metadatap(frame));
224 case TIFF_SHORT : return ff_tadd_shorts_metadata(count, name, sep, &s->gb, s->le, avpriv_frame_get_metadatap(frame));
225 case TIFF_STRING: return ff_tadd_string_metadata(count, name, &s->gb, s->le, avpriv_frame_get_metadatap(frame));
226 default : return AVERROR_INVALIDDATA;
230 static void av_always_inline horizontal_fill(unsigned int bpp, uint8_t* dst,
231 int usePtr, const uint8_t *src,
232 uint8_t c, int width, int offset)
236 while (--width >= 0) {
237 dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
238 dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
239 dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
240 dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
241 dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
242 dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
243 dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
244 dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
248 while (--width >= 0) {
249 dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
250 dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
251 dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
252 dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
256 while (--width >= 0) {
257 dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
258 dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
263 memcpy(dst + offset, src, width);
265 memset(dst + offset, c, width);
270 static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
274 av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
275 if (!s->deinvert_buf)
276 return AVERROR(ENOMEM);
277 for (i = 0; i < size; i++)
278 s->deinvert_buf[i] = ff_reverse[src[i]];
284 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
287 z_stream zstream = { 0 };
290 zstream.next_in = (uint8_t *)src;
291 zstream.avail_in = size;
292 zstream.next_out = dst;
293 zstream.avail_out = *len;
294 zret = inflateInit(&zstream);
296 av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
299 zret = inflate(&zstream, Z_SYNC_FLUSH);
300 inflateEnd(&zstream);
301 *len = zstream.total_out;
302 return zret == Z_STREAM_END ? Z_OK : zret;
305 static int tiff_unpack_zlib(TiffContext *s, uint8_t *dst, int stride,
306 const uint8_t *src, int size,
307 int width, int lines)
310 unsigned long outlen;
312 outlen = width * lines;
313 zbuf = av_malloc(outlen);
315 return AVERROR(ENOMEM);
317 if ((ret = deinvert_buffer(s, src, size)) < 0) {
321 src = s->deinvert_buf;
323 ret = tiff_uncompress(zbuf, &outlen, src, size);
325 av_log(s->avctx, AV_LOG_ERROR,
326 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
327 (unsigned long)width * lines, ret);
329 return AVERROR_UNKNOWN;
332 for (line = 0; line < lines; line++) {
333 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
334 horizontal_fill(s->bpp, dst, 1, src, 0, width, 0);
336 memcpy(dst, src, width);
347 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
348 const uint8_t *src, int size, int width, int lines)
352 uint8_t *src2 = av_malloc((unsigned)size +
353 FF_INPUT_BUFFER_PADDING_SIZE);
356 av_log(s->avctx, AV_LOG_ERROR,
357 "Error allocating temporary buffer\n");
358 return AVERROR(ENOMEM);
360 if (s->fax_opts & 2) {
361 avpriv_request_sample(s->avctx, "Uncompressed fax mode");
363 return AVERROR_PATCHWELCOME;
365 if (!s->fill_order) {
366 memcpy(src2, src, size);
368 for (i = 0; i < size; i++)
369 src2[i] = ff_reverse[src[i]];
371 memset(src2 + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
372 ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
373 s->compr, s->fax_opts);
374 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
375 for (line = 0; line < lines; line++) {
376 horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
383 static int tiff_unpack_strip(TiffContext *s, uint8_t *dst, int stride,
384 const uint8_t *src, int size, int lines)
386 int c, line, pixels, code, ret;
387 const uint8_t *ssrc = src;
388 int width = ((s->width * s->bpp) + 7) >> 3;
391 width /= s->bppcount;
394 return AVERROR_INVALIDDATA;
396 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
398 return tiff_unpack_zlib(s, dst, stride, src, size, width, lines);
400 av_log(s->avctx, AV_LOG_ERROR,
401 "zlib support not enabled, "
402 "deflate compression not supported\n");
403 return AVERROR(ENOSYS);
406 if (s->compr == TIFF_LZW) {
408 if ((ret = deinvert_buffer(s, src, size)) < 0)
410 ssrc = src = s->deinvert_buf;
412 if (size > 1 && !src[0] && (src[1]&1)) {
413 av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
415 if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
416 av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
420 if (s->compr == TIFF_CCITT_RLE ||
421 s->compr == TIFF_G3 ||
422 s->compr == TIFF_G4) {
423 return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
425 for (line = 0; line < lines; line++) {
426 if (src - ssrc > size) {
427 av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
428 return AVERROR_INVALIDDATA;
432 if (ssrc + size - src < width)
433 return AVERROR_INVALIDDATA;
434 if (!s->fill_order) {
435 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
436 dst, 1, src, 0, width, 0);
439 for (i = 0; i < width; i++)
440 dst[i] = ff_reverse[src[i]];
445 for (pixels = 0; pixels < width;) {
446 if (ssrc + size - src < 2) {
447 av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
448 return AVERROR_INVALIDDATA;
450 code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
453 if (pixels + code > width ||
454 ssrc + size - src < code) {
455 av_log(s->avctx, AV_LOG_ERROR,
456 "Copy went out of bounds\n");
457 return AVERROR_INVALIDDATA;
459 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
460 dst, 1, src, 0, code, pixels);
463 } else if (code != -128) { // -127..-1
465 if (pixels + code > width) {
466 av_log(s->avctx, AV_LOG_ERROR,
467 "Run went out of bounds\n");
468 return AVERROR_INVALIDDATA;
471 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
472 dst, 0, NULL, c, code, pixels);
478 for (i = 0; i < width; i++)
479 dst[i] = ff_reverse[dst[i]];
483 pixels = ff_lzw_decode(s->lzw, dst, width);
484 if (pixels < width) {
485 av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
487 return AVERROR_INVALIDDATA;
489 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
490 horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
498 static int init_image(TiffContext *s, ThreadFrame *frame)
503 switch (s->planar * 1000 + s->bpp * 10 + s->bppcount) {
505 if (!s->palette_is_set) {
506 s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
512 s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
515 s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
518 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
521 s->avctx->pix_fmt = AV_PIX_FMT_GRAY8A;
524 s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
527 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
530 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
533 s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
536 s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
539 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE;
542 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE;
545 av_log(s->avctx, AV_LOG_ERROR,
546 "This format is not supported (bpp=%d, bppcount=%d)\n",
547 s->bpp, s->bppcount);
548 return AVERROR_INVALIDDATA;
550 if (s->width != s->avctx->width || s->height != s->avctx->height) {
551 ret = ff_set_dimensions(s->avctx, s->width, s->height);
555 if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
557 if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
558 if (s->palette_is_set) {
559 memcpy(frame->f->data[1], s->palette, sizeof(s->palette));
561 /* make default grayscale pal */
562 pal = (uint32_t *) frame->f->data[1];
563 for (i = 0; i < 1<<s->bpp; i++)
564 pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
570 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
572 int offset = tag == TIFF_YRES ? 2 : 0;
573 s->res[offset++] = num;
574 s->res[offset] = den;
575 if (s->res[0] && s->res[1] && s->res[2] && s->res[3])
576 av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den,
577 s->res[2] * (uint64_t)s->res[1], s->res[0] * (uint64_t)s->res[3], INT32_MAX);
580 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
582 unsigned tag, type, count, off, value = 0, value2 = 0;
583 int i, j, k, pos, start;
588 ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
593 off = bytestream2_tell(&s->gb);
599 value = ff_tget(&s->gb, type, s->le);
602 value = ff_tget(&s->gb, TIFF_LONG, s->le);
603 value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
624 av_log(s->avctx, AV_LOG_ERROR,
625 "This format is not supported (bpp=%d, %d components)\n",
627 return AVERROR_INVALIDDATA;
637 if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
638 return AVERROR_INVALIDDATA;
639 for (i = 0; i < count; i++)
640 s->bpp += ff_tget(&s->gb, type, s->le);
647 case TIFF_SAMPLES_PER_PIXEL:
649 av_log(s->avctx, AV_LOG_ERROR,
650 "Samples per pixel requires a single value, many provided\n");
651 return AVERROR_INVALIDDATA;
654 av_log(s->avctx, AV_LOG_ERROR,
655 "Samples per pixel %d is too large\n", value);
656 return AVERROR_INVALIDDATA;
658 if (s->bppcount == 1)
676 case TIFF_ADOBE_DEFLATE:
680 av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
681 return AVERROR(ENOSYS);
685 avpriv_report_missing_feature(s->avctx, "JPEG compression");
686 return AVERROR_PATCHWELCOME;
688 av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
690 return AVERROR_INVALIDDATA;
693 case TIFF_ROWSPERSTRIP:
694 if (type == TIFF_LONG && value == UINT_MAX)
697 av_log(s->avctx, AV_LOG_ERROR,
698 "Incorrect value of rows per strip\n");
699 return AVERROR_INVALIDDATA;
703 case TIFF_STRIP_OFFS:
713 if (s->strippos > 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_STRIP_SIZE:
721 s->stripsizesoff = 0;
722 s->stripsize = value;
725 s->stripsizesoff = off;
729 if (s->stripsizesoff > bytestream2_size(&s->gb)) {
730 av_log(s->avctx, AV_LOG_ERROR,
731 "Tag referencing position outside the image\n");
732 return AVERROR_INVALIDDATA;
737 set_sar(s, tag, value, value2);
739 case TIFF_TILE_BYTE_COUNTS:
740 case TIFF_TILE_LENGTH:
741 case TIFF_TILE_OFFSETS:
742 case TIFF_TILE_WIDTH:
743 av_log(s->avctx, AV_LOG_ERROR, "Tiled images are not supported\n");
744 return AVERROR_PATCHWELCOME;
747 s->predictor = value;
761 av_log(s->avctx, AV_LOG_ERROR, "Color mode %d is not supported\n",
763 return AVERROR_INVALIDDATA;
766 case TIFF_FILL_ORDER:
767 if (value < 1 || value > 2) {
768 av_log(s->avctx, AV_LOG_ERROR,
769 "Unknown FillOrder value %d, trying default one\n", value);
772 s->fill_order = value - 1;
775 pal = (uint32_t *) s->palette;
776 off = type_sizes[type];
777 if (count / 3 > 256 || bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
778 return AVERROR_INVALIDDATA;
779 off = (type_sizes[type] - 1) << 3;
780 for (k = 2; k >= 0; k--) {
781 for (i = 0; i < count / 3; i++) {
783 pal[i] = 0xFFU << 24;
784 j = (ff_tget(&s->gb, type, s->le) >> off) << (k * 8);
788 s->palette_is_set = 1;
791 s->planar = value == 2;
794 if (s->compr == TIFF_G3)
798 if (s->compr == TIFF_G4)
801 #define ADD_METADATA(count, name, sep)\
802 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
803 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
806 case TIFF_MODEL_PIXEL_SCALE:
807 ADD_METADATA(count, "ModelPixelScaleTag", NULL);
809 case TIFF_MODEL_TRANSFORMATION:
810 ADD_METADATA(count, "ModelTransformationTag", NULL);
812 case TIFF_MODEL_TIEPOINT:
813 ADD_METADATA(count, "ModelTiepointTag", NULL);
815 case TIFF_GEO_KEY_DIRECTORY:
816 ADD_METADATA(1, "GeoTIFF_Version", NULL);
817 ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
818 s->geotag_count = ff_tget_short(&s->gb, s->le);
819 if (s->geotag_count > count / 4 - 1) {
820 s->geotag_count = count / 4 - 1;
821 av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
823 if (bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4) {
827 s->geotags = av_mallocz(sizeof(TiffGeoTag) * s->geotag_count);
829 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
833 for (i = 0; i < s->geotag_count; i++) {
834 s->geotags[i].key = ff_tget_short(&s->gb, s->le);
835 s->geotags[i].type = ff_tget_short(&s->gb, s->le);
836 s->geotags[i].count = ff_tget_short(&s->gb, s->le);
838 if (!s->geotags[i].type)
839 s->geotags[i].val = get_geokey_val(s->geotags[i].key, ff_tget_short(&s->gb, s->le));
841 s->geotags[i].offset = ff_tget_short(&s->gb, s->le);
844 case TIFF_GEO_DOUBLE_PARAMS:
845 if (count >= INT_MAX / sizeof(int64_t))
846 return AVERROR_INVALIDDATA;
847 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
848 return AVERROR_INVALIDDATA;
849 dp = av_malloc(count * sizeof(double));
851 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
854 for (i = 0; i < count; i++)
855 dp[i] = ff_tget_double(&s->gb, s->le);
856 for (i = 0; i < s->geotag_count; i++) {
857 if (s->geotags[i].type == TIFF_GEO_DOUBLE_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);
862 char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
864 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
866 return AVERROR(ENOMEM);
868 s->geotags[i].val = ap;
874 case TIFF_GEO_ASCII_PARAMS:
875 pos = bytestream2_tell(&s->gb);
876 for (i = 0; i < s->geotag_count; i++) {
877 if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
878 if (s->geotags[i].count == 0
879 || s->geotags[i].offset + s->geotags[i].count > count) {
880 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
884 bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
885 if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
886 return AVERROR_INVALIDDATA;
887 ap = av_malloc(s->geotags[i].count);
889 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
890 return AVERROR(ENOMEM);
892 bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
893 ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
894 s->geotags[i].val = ap;
900 ADD_METADATA(count, "artist", NULL);
903 ADD_METADATA(count, "copyright", NULL);
906 ADD_METADATA(count, "date", NULL);
908 case TIFF_DOCUMENT_NAME:
909 ADD_METADATA(count, "document_name", NULL);
911 case TIFF_HOST_COMPUTER:
912 ADD_METADATA(count, "computer", NULL);
914 case TIFF_IMAGE_DESCRIPTION:
915 ADD_METADATA(count, "description", NULL);
918 ADD_METADATA(count, "make", NULL);
921 ADD_METADATA(count, "model", NULL);
924 ADD_METADATA(count, "page_name", NULL);
926 case TIFF_PAGE_NUMBER:
927 ADD_METADATA(count, "page_number", " / ");
929 case TIFF_SOFTWARE_NAME:
930 ADD_METADATA(count, "software", NULL);
933 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
934 av_log(s->avctx, AV_LOG_ERROR,
935 "Unknown or unsupported tag %d/0X%0X\n",
937 return AVERROR_INVALIDDATA;
941 bytestream2_seek(&s->gb, start, SEEK_SET);
945 static int decode_frame(AVCodecContext *avctx,
946 void *data, int *got_frame, AVPacket *avpkt)
948 TiffContext *const s = avctx->priv_data;
949 AVFrame *const p = data;
950 ThreadFrame frame = { .f = data };
952 int le, ret, plane, planes;
953 int i, j, entries, stride;
954 unsigned soff, ssize;
956 GetByteContext stripsizes;
957 GetByteContext stripdata;
959 bytestream2_init(&s->gb, avpkt->data, avpkt->size);
961 // parse image header
962 if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
963 av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
965 } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
966 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
967 return AVERROR_INVALIDDATA;
970 // TIFF_BPP is not a required tag and defaults to 1
971 s->bppcount = s->bpp = 1;
977 // Reset these offsets so we can tell if they were set this frame
978 s->stripsizesoff = s->strippos = 0;
979 /* parse image file directory */
980 bytestream2_seek(&s->gb, off, SEEK_SET);
981 entries = ff_tget_short(&s->gb, le);
982 if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
983 return AVERROR_INVALIDDATA;
984 for (i = 0; i < entries; i++) {
985 if ((ret = tiff_decode_tag(s, p)) < 0)
989 for (i = 0; i<s->geotag_count; i++) {
990 const char *keyname = get_geokey_name(s->geotags[i].key);
992 av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
995 if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
996 av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
999 ret = av_dict_set(avpriv_frame_get_metadatap(p), keyname, s->geotags[i].val, 0);
1001 av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
1006 if (!s->strippos && !s->stripoff) {
1007 av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
1008 return AVERROR_INVALIDDATA;
1010 /* now we have the data and may start decoding */
1011 if ((ret = init_image(s, &frame)) < 0)
1014 if (s->strips == 1 && !s->stripsize) {
1015 av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
1016 s->stripsize = avpkt->size - s->stripoff;
1019 if (s->stripsizesoff) {
1020 if (s->stripsizesoff >= (unsigned)avpkt->size)
1021 return AVERROR_INVALIDDATA;
1022 bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff, avpkt->size - s->stripsizesoff);
1025 if (s->strippos >= (unsigned)avpkt->size)
1026 return AVERROR_INVALIDDATA;
1027 bytestream2_init(&stripdata, avpkt->data + s->strippos, avpkt->size - s->strippos);
1031 av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1032 return AVERROR_INVALIDDATA;
1035 planes = s->planar ? s->bppcount : 1;
1036 for (plane = 0; plane < planes; plane++) {
1037 stride = p->linesize[plane];
1038 dst = p->data[plane];
1039 for (i = 0; i < s->height; i += s->rps) {
1040 if (s->stripsizesoff)
1041 ssize = ff_tget(&stripsizes, s->sstype, s->le);
1043 ssize = s->stripsize;
1046 soff = ff_tget(&stripdata, s->sot, s->le);
1050 if (soff > avpkt->size || ssize > avpkt->size - soff) {
1051 av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
1052 return AVERROR_INVALIDDATA;
1054 if ((ret = tiff_unpack_strip(s, dst, stride, avpkt->data + soff, ssize,
1055 FFMIN(s->rps, s->height - i))) < 0) {
1056 if (avctx->err_recognition & AV_EF_EXPLODE)
1060 dst += s->rps * stride;
1062 if (s->predictor == 2) {
1063 dst = p->data[plane];
1066 soff = FFMAX(soff / s->bppcount, 1);
1067 ssize = s->width * soff;
1068 if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
1069 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
1070 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
1071 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
1072 for (i = 0; i < s->height; i++) {
1073 for (j = soff; j < ssize; j += 2)
1074 AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
1077 } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
1078 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
1079 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
1080 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
1081 for (i = 0; i < s->height; i++) {
1082 for (j = soff; j < ssize; j += 2)
1083 AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
1087 for (i = 0; i < s->height; i++) {
1088 for (j = soff; j < ssize; j++)
1089 dst[j] += dst[j - soff];
1096 dst = p->data[plane];
1097 for (i = 0; i < s->height; i++) {
1098 for (j = 0; j < p->linesize[plane]; j++)
1099 dst[j] = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255) - dst[j];
1100 dst += p->linesize[plane];
1105 if (s->planar && s->bppcount > 2) {
1106 FFSWAP(uint8_t*, p->data[0], p->data[2]);
1107 FFSWAP(int, p->linesize[0], p->linesize[2]);
1108 FFSWAP(uint8_t*, p->data[0], p->data[1]);
1109 FFSWAP(int, p->linesize[0], p->linesize[1]);
1117 static av_cold int tiff_init(AVCodecContext *avctx)
1119 TiffContext *s = avctx->priv_data;
1124 ff_lzw_decode_open(&s->lzw);
1125 ff_ccitt_unpack_init();
1130 static av_cold int tiff_end(AVCodecContext *avctx)
1132 TiffContext *const s = avctx->priv_data;
1136 ff_lzw_decode_close(&s->lzw);
1137 av_freep(&s->deinvert_buf);
1141 AVCodec ff_tiff_decoder = {
1143 .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
1144 .type = AVMEDIA_TYPE_VIDEO,
1145 .id = AV_CODEC_ID_TIFF,
1146 .priv_data_size = sizeof(TiffContext),
1149 .decode = decode_frame,
1150 .init_thread_copy = ONLY_IF_THREADS_ENABLED(tiff_init),
1151 .capabilities = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS,