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 #define LZMA_API_STATIC
36 #include "libavutil/attributes.h"
37 #include "libavutil/avstring.h"
38 #include "libavutil/intreadwrite.h"
39 #include "libavutil/imgutils.h"
40 #include "libavutil/opt.h"
42 #include "bytestream.h"
48 #include "tiff_data.h"
52 typedef struct TiffContext {
54 AVCodecContext *avctx;
61 enum TiffType tiff_type;
63 unsigned int bpp, bppcount;
64 uint32_t palette[256];
68 enum TiffPhotometric photometric;
84 int strips, rps, sstype;
86 int stripsizesoff, stripsize, stripoff, strippos;
89 uint8_t *deinvert_buf;
90 int deinvert_buf_size;
92 unsigned int yuv_line_size;
94 unsigned int fax_buffer_size;
100 static void tiff_set_type(TiffContext *s, enum TiffType tiff_type) {
101 if (s->tiff_type < tiff_type) // Prioritize higher-valued entries
102 s->tiff_type = tiff_type;
105 static void free_geotags(TiffContext *const s)
108 for (i = 0; i < s->geotag_count; i++) {
109 if (s->geotags[i].val)
110 av_freep(&s->geotags[i].val);
112 av_freep(&s->geotags);
116 #define RET_GEOKEY(TYPE, array, element)\
117 if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
118 key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_name_type_map))\
119 return ff_tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].element;
121 static const char *get_geokey_name(int key)
123 RET_GEOKEY(VERT, vert, name);
124 RET_GEOKEY(PROJ, proj, name);
125 RET_GEOKEY(GEOG, geog, name);
126 RET_GEOKEY(CONF, conf, name);
131 static int get_geokey_type(int key)
133 RET_GEOKEY(VERT, vert, type);
134 RET_GEOKEY(PROJ, proj, type);
135 RET_GEOKEY(GEOG, geog, type);
136 RET_GEOKEY(CONF, conf, type);
138 return AVERROR_INVALIDDATA;
141 static int cmp_id_key(const void *id, const void *k)
143 return *(const int*)id - ((const TiffGeoTagKeyName*)k)->key;
146 static const char *search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
148 TiffGeoTagKeyName *r = bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key);
155 static char *get_geokey_val(int key, int val)
159 if (val == TIFF_GEO_KEY_UNDEFINED)
160 return av_strdup("undefined");
161 if (val == TIFF_GEO_KEY_USER_DEFINED)
162 return av_strdup("User-Defined");
164 #define RET_GEOKEY_VAL(TYPE, array)\
165 if (val >= TIFF_##TYPE##_OFFSET &&\
166 val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_codes))\
167 return av_strdup(ff_tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET]);
170 case TIFF_GT_MODEL_TYPE_GEOKEY:
171 RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
173 case TIFF_GT_RASTER_TYPE_GEOKEY:
174 RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
176 case TIFF_GEOG_LINEAR_UNITS_GEOKEY:
177 case TIFF_PROJ_LINEAR_UNITS_GEOKEY:
178 case TIFF_VERTICAL_UNITS_GEOKEY:
179 RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
181 case TIFF_GEOG_ANGULAR_UNITS_GEOKEY:
182 case TIFF_GEOG_AZIMUTH_UNITS_GEOKEY:
183 RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
185 case TIFF_GEOGRAPHIC_TYPE_GEOKEY:
186 RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
187 RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
189 case TIFF_GEOG_GEODETIC_DATUM_GEOKEY:
190 RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
191 RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
193 case TIFF_GEOG_ELLIPSOID_GEOKEY:
194 RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
196 case TIFF_GEOG_PRIME_MERIDIAN_GEOKEY:
197 RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
199 case TIFF_PROJECTED_CS_TYPE_GEOKEY:
200 ap = av_strdup(search_keyval(ff_tiff_proj_cs_type_codes, FF_ARRAY_ELEMS(ff_tiff_proj_cs_type_codes), val));
203 case TIFF_PROJECTION_GEOKEY:
204 ap = av_strdup(search_keyval(ff_tiff_projection_codes, FF_ARRAY_ELEMS(ff_tiff_projection_codes), val));
207 case TIFF_PROJ_COORD_TRANS_GEOKEY:
208 RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
210 case TIFF_VERTICAL_CS_TYPE_GEOKEY:
211 RET_GEOKEY_VAL(VERT_CS, vert_cs);
212 RET_GEOKEY_VAL(ORTHO_VERT_CS, ortho_vert_cs);
219 snprintf(ap, 14, "Unknown-%d", val);
223 static char *doubles2str(double *dp, int count, const char *sep)
227 uint64_t component_len;
228 if (!sep) sep = ", ";
229 component_len = 24LL + strlen(sep);
230 if (count >= (INT_MAX - 1)/component_len)
232 ap = av_malloc(component_len * count + 1);
237 for (i = 0; i < count; i++) {
238 unsigned l = snprintf(ap, component_len, "%.15g%s", dp[i], sep);
239 if(l >= component_len) {
245 ap0[strlen(ap0) - strlen(sep)] = '\0';
249 static int add_metadata(int count, int type,
250 const char *name, const char *sep, TiffContext *s, AVFrame *frame)
253 case TIFF_DOUBLE: return ff_tadd_doubles_metadata(count, name, sep, &s->gb, s->le, &frame->metadata);
254 case TIFF_SHORT : return ff_tadd_shorts_metadata(count, name, sep, &s->gb, s->le, 0, &frame->metadata);
255 case TIFF_STRING: return ff_tadd_string_metadata(count, name, &s->gb, s->le, &frame->metadata);
256 default : return AVERROR_INVALIDDATA;
260 static void av_always_inline horizontal_fill(TiffContext *s,
261 unsigned int bpp, uint8_t* dst,
262 int usePtr, const uint8_t *src,
263 uint8_t c, int width, int offset)
267 while (--width >= 0) {
268 dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
269 dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
270 dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
271 dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
272 dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
273 dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
274 dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
275 dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
279 while (--width >= 0) {
280 dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
281 dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
282 dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
283 dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
287 while (--width >= 0) {
288 dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
289 dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
293 uint16_t *dst16 = (uint16_t *)dst;
295 init_get_bits8(&gb, src, width);
296 for (int i = 0; i < s->width; i++) {
297 dst16[i] = get_bits(&gb, 12) << 4;
303 memcpy(dst + offset, src, width);
305 memset(dst + offset, c, width);
310 static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
314 av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
315 if (!s->deinvert_buf)
316 return AVERROR(ENOMEM);
317 for (i = 0; i < size; i++)
318 s->deinvert_buf[i] = ff_reverse[src[i]];
323 static void unpack_gray(TiffContext *s, AVFrame *p,
324 const uint8_t *src, int lnum, int width, int bpp)
327 uint16_t *dst = (uint16_t *)(p->data[0] + lnum * p->linesize[0]);
329 init_get_bits8(&gb, src, width);
331 for (int i = 0; i < s->width; i++) {
332 dst[i] = get_bits(&gb, bpp);
336 static void unpack_yuv(TiffContext *s, AVFrame *p,
337 const uint8_t *src, int lnum)
340 int w = (s->width - 1) / s->subsampling[0] + 1;
341 uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
342 uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
343 if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
344 for (i = 0; i < w; i++) {
345 for (j = 0; j < s->subsampling[1]; j++)
346 for (k = 0; k < s->subsampling[0]; k++)
347 p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
348 FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++;
353 for (i = 0; i < w; i++) {
354 for (j = 0; j < s->subsampling[1]; j++)
355 for (k = 0; k < s->subsampling[0]; k++)
356 p->data[0][(lnum + j) * p->linesize[0] +
357 i * s->subsampling[0] + k] = *src++;
365 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
368 z_stream zstream = { 0 };
371 zstream.next_in = (uint8_t *)src;
372 zstream.avail_in = size;
373 zstream.next_out = dst;
374 zstream.avail_out = *len;
375 zret = inflateInit(&zstream);
377 av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
380 zret = inflate(&zstream, Z_SYNC_FLUSH);
381 inflateEnd(&zstream);
382 *len = zstream.total_out;
383 return zret == Z_STREAM_END ? Z_OK : zret;
386 static int tiff_unpack_zlib(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
387 const uint8_t *src, int size, int width, int lines,
388 int strip_start, int is_yuv)
391 unsigned long outlen;
393 outlen = width * lines;
394 zbuf = av_malloc(outlen);
396 return AVERROR(ENOMEM);
398 if ((ret = deinvert_buffer(s, src, size)) < 0) {
402 src = s->deinvert_buf;
404 ret = tiff_uncompress(zbuf, &outlen, src, size);
406 av_log(s->avctx, AV_LOG_ERROR,
407 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
408 (unsigned long)width * lines, ret);
410 return AVERROR_UNKNOWN;
413 for (line = 0; line < lines; line++) {
414 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
415 horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
417 memcpy(dst, src, width);
420 unpack_yuv(s, p, dst, strip_start + line);
421 line += s->subsampling[1] - 1;
432 static int tiff_uncompress_lzma(uint8_t *dst, uint64_t *len, const uint8_t *src,
435 lzma_stream stream = LZMA_STREAM_INIT;
438 stream.next_in = (uint8_t *)src;
439 stream.avail_in = size;
440 stream.next_out = dst;
441 stream.avail_out = *len;
442 ret = lzma_stream_decoder(&stream, UINT64_MAX, 0);
443 if (ret != LZMA_OK) {
444 av_log(NULL, AV_LOG_ERROR, "LZMA init error: %d\n", ret);
447 ret = lzma_code(&stream, LZMA_RUN);
449 *len = stream.total_out;
450 return ret == LZMA_STREAM_END ? LZMA_OK : ret;
453 static int tiff_unpack_lzma(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
454 const uint8_t *src, int size, int width, int lines,
455 int strip_start, int is_yuv)
457 uint64_t outlen = width * (uint64_t)lines;
459 uint8_t *buf = av_malloc(outlen);
461 return AVERROR(ENOMEM);
463 if ((ret = deinvert_buffer(s, src, size)) < 0) {
467 src = s->deinvert_buf;
469 ret = tiff_uncompress_lzma(buf, &outlen, src, size);
470 if (ret != LZMA_OK) {
471 av_log(s->avctx, AV_LOG_ERROR,
472 "Uncompressing failed (%"PRIu64" of %"PRIu64") with error %d\n", outlen,
473 (uint64_t)width * lines, ret);
475 return AVERROR_UNKNOWN;
478 for (line = 0; line < lines; line++) {
479 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
480 horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
482 memcpy(dst, src, width);
485 unpack_yuv(s, p, dst, strip_start + line);
486 line += s->subsampling[1] - 1;
496 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
497 const uint8_t *src, int size, int width, int lines)
503 av_fast_padded_malloc(&s->fax_buffer, &s->fax_buffer_size, size);
504 src2 = s->fax_buffer;
507 av_log(s->avctx, AV_LOG_ERROR,
508 "Error allocating temporary buffer\n");
509 return AVERROR(ENOMEM);
512 if (!s->fill_order) {
513 memcpy(src2, src, size);
515 for (i = 0; i < size; i++)
516 src2[i] = ff_reverse[src[i]];
518 memset(src2 + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
519 ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
520 s->compr, s->fax_opts);
521 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
522 for (line = 0; line < lines; line++) {
523 horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
529 static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
530 const uint8_t *src, int size, int strip_start, int lines)
533 int c, line, pixels, code, ret;
534 const uint8_t *ssrc = src;
535 int width = ((s->width * s->bpp) + 7) >> 3;
536 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(p->format);
537 int is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) &&
538 (desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
539 desc->nb_components >= 3;
542 width /= s->bppcount;
545 return AVERROR_INVALIDDATA;
548 int bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
549 s->subsampling[0] * s->subsampling[1] + 7) >> 3;
550 av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row);
551 if (s->yuv_line == NULL) {
552 av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
553 return AVERROR(ENOMEM);
558 width = (s->width - 1) / s->subsampling[0] + 1;
559 width = width * s->subsampling[0] * s->subsampling[1] + 2*width;
560 av_assert0(width <= bytes_per_row);
561 av_assert0(s->bpp == 24);
564 width = (s->bpp * s->width + 7) >> 3;
566 if (p->format == AV_PIX_FMT_GRAY12) {
567 av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, width);
568 if (s->yuv_line == NULL) {
569 av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
570 return AVERROR(ENOMEM);
576 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
578 return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines,
579 strip_start, is_yuv);
581 av_log(s->avctx, AV_LOG_ERROR,
582 "zlib support not enabled, "
583 "deflate compression not supported\n");
584 return AVERROR(ENOSYS);
587 if (s->compr == TIFF_LZMA) {
589 return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
590 strip_start, is_yuv);
592 av_log(s->avctx, AV_LOG_ERROR,
593 "LZMA support not enabled\n");
594 return AVERROR(ENOSYS);
597 if (s->compr == TIFF_LZW) {
599 if ((ret = deinvert_buffer(s, src, size)) < 0)
601 ssrc = src = s->deinvert_buf;
603 if (size > 1 && !src[0] && (src[1]&1)) {
604 av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
606 if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
607 av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
610 for (line = 0; line < lines; line++) {
611 pixels = ff_lzw_decode(s->lzw, dst, width);
612 if (pixels < width) {
613 av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
615 return AVERROR_INVALIDDATA;
617 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
618 horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
620 unpack_yuv(s, p, dst, strip_start + line);
621 line += s->subsampling[1] - 1;
622 } else if (p->format == AV_PIX_FMT_GRAY12) {
623 unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
629 if (s->compr == TIFF_CCITT_RLE ||
630 s->compr == TIFF_G3 ||
631 s->compr == TIFF_G4) {
632 if (is_yuv || p->format == AV_PIX_FMT_GRAY12)
633 return AVERROR_INVALIDDATA;
635 return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
638 bytestream2_init(&s->gb, src, size);
639 bytestream2_init_writer(&pb, dst, is_yuv ? s->yuv_line_size : (stride * lines));
641 for (line = 0; line < lines; line++) {
642 if (src - ssrc > size) {
643 av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
644 return AVERROR_INVALIDDATA;
647 if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb))
649 bytestream2_seek_p(&pb, stride * line, SEEK_SET);
652 if (ssrc + size - src < width)
653 return AVERROR_INVALIDDATA;
655 if (!s->fill_order) {
656 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 || s->is_bayer),
657 dst, 1, src, 0, width, 0);
660 for (i = 0; i < width; i++)
661 dst[i] = ff_reverse[src[i]];
666 for (pixels = 0; pixels < width;) {
667 if (ssrc + size - src < 2) {
668 av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
669 return AVERROR_INVALIDDATA;
671 code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
674 if (pixels + code > width ||
675 ssrc + size - src < code) {
676 av_log(s->avctx, AV_LOG_ERROR,
677 "Copy went out of bounds\n");
678 return AVERROR_INVALIDDATA;
680 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
681 dst, 1, src, 0, code, pixels);
684 } else if (code != -128) { // -127..-1
686 if (pixels + code > width) {
687 av_log(s->avctx, AV_LOG_ERROR,
688 "Run went out of bounds\n");
689 return AVERROR_INVALIDDATA;
692 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
693 dst, 0, NULL, c, code, pixels);
699 for (i = 0; i < width; i++)
700 dst[i] = ff_reverse[dst[i]];
705 unpack_yuv(s, p, dst, strip_start + line);
706 line += s->subsampling[1] - 1;
707 } else if (p->format == AV_PIX_FMT_GRAY12) {
708 unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
715 static int init_image(TiffContext *s, ThreadFrame *frame)
718 int create_gray_palette = 0;
720 // make sure there is no aliasing in the following switch
721 if (s->bpp >= 100 || s->bppcount >= 10) {
722 av_log(s->avctx, AV_LOG_ERROR,
723 "Unsupported image parameters: bpp=%d, bppcount=%d\n",
724 s->bpp, s->bppcount);
725 return AVERROR_INVALIDDATA;
728 switch (s->planar * 1000 + s->bpp * 10 + s->bppcount + s->is_bayer * 10000) {
730 if (!s->palette_is_set) {
731 s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
736 s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
737 if (!s->palette_is_set) {
738 create_gray_palette = 1;
742 s->avctx->pix_fmt = s->palette_is_set ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_GRAY8;
745 s->avctx->pix_fmt = AV_PIX_FMT_GRAY12;
748 switch (AV_RL32(s->pattern)) {
750 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB8;
753 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR8;
756 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG8;
759 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG8;
762 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
763 AV_RL32(s->pattern));
764 return AVERROR_PATCHWELCOME;
768 switch (AV_RL32(s->pattern)) {
770 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_RGGB16LE : AV_PIX_FMT_BAYER_RGGB16BE;
773 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_BGGR16LE : AV_PIX_FMT_BAYER_BGGR16BE;
776 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GBRG16LE : AV_PIX_FMT_BAYER_GBRG16BE;
779 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GRBG16LE : AV_PIX_FMT_BAYER_GRBG16BE;
782 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
783 AV_RL32(s->pattern));
784 return AVERROR_PATCHWELCOME;
788 switch (AV_RL32(s->pattern)) {
790 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_RGGB16LE : AV_PIX_FMT_BAYER_RGGB16BE;
793 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_BGGR16LE : AV_PIX_FMT_BAYER_BGGR16BE;
796 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GBRG16LE : AV_PIX_FMT_BAYER_GBRG16BE;
799 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GRBG16LE : AV_PIX_FMT_BAYER_GRBG16BE;
802 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
803 AV_RL32(s->pattern));
804 return AVERROR_PATCHWELCOME;
808 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
809 if (s->subsampling[0] == 1 && s->subsampling[1] == 1) {
810 s->avctx->pix_fmt = AV_PIX_FMT_YUV444P;
811 } else if (s->subsampling[0] == 2 && s->subsampling[1] == 1) {
812 s->avctx->pix_fmt = AV_PIX_FMT_YUV422P;
813 } else if (s->subsampling[0] == 4 && s->subsampling[1] == 1) {
814 s->avctx->pix_fmt = AV_PIX_FMT_YUV411P;
815 } else if (s->subsampling[0] == 1 && s->subsampling[1] == 2) {
816 s->avctx->pix_fmt = AV_PIX_FMT_YUV440P;
817 } else if (s->subsampling[0] == 2 && s->subsampling[1] == 2) {
818 s->avctx->pix_fmt = AV_PIX_FMT_YUV420P;
819 } else if (s->subsampling[0] == 4 && s->subsampling[1] == 4) {
820 s->avctx->pix_fmt = AV_PIX_FMT_YUV410P;
822 av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr subsampling\n");
823 return AVERROR_PATCHWELCOME;
826 s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
829 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
832 s->avctx->pix_fmt = AV_PIX_FMT_YA8;
835 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_YA16LE : AV_PIX_FMT_YA16BE;
838 s->avctx->pix_fmt = s->photometric == TIFF_PHOTOMETRIC_SEPARATED ? AV_PIX_FMT_RGB0 : AV_PIX_FMT_RGBA;
841 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED)
842 s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
844 av_log(s->avctx, AV_LOG_ERROR,
845 "bpp=40 without PHOTOMETRIC_SEPARATED is unsupported\n");
846 return AVERROR_PATCHWELCOME;
850 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
853 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
856 s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
859 s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
862 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE;
865 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE;
868 av_log(s->avctx, AV_LOG_ERROR,
869 "This format is not supported (bpp=%d, bppcount=%d)\n",
870 s->bpp, s->bppcount);
871 return AVERROR_INVALIDDATA;
874 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
875 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
876 if((desc->flags & AV_PIX_FMT_FLAG_RGB) ||
877 !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) ||
878 desc->nb_components < 3) {
879 av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr variant\n");
880 return AVERROR_INVALIDDATA;
884 if (s->width != s->avctx->width || s->height != s->avctx->height) {
885 ret = ff_set_dimensions(s->avctx, s->width, s->height);
889 if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
891 if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
892 if (!create_gray_palette)
893 memcpy(frame->f->data[1], s->palette, sizeof(s->palette));
895 /* make default grayscale pal */
897 uint32_t *pal = (uint32_t *)frame->f->data[1];
898 for (i = 0; i < 1<<s->bpp; i++)
899 pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
905 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
907 int offset = tag == TIFF_YRES ? 2 : 0;
908 s->res[offset++] = num;
909 s->res[offset] = den;
910 if (s->res[0] && s->res[1] && s->res[2] && s->res[3]) {
911 uint64_t num = s->res[2] * (uint64_t)s->res[1];
912 uint64_t den = s->res[0] * (uint64_t)s->res[3];
913 if (num > INT64_MAX || den > INT64_MAX) {
917 av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den,
918 num, den, INT32_MAX);
919 if (!s->avctx->sample_aspect_ratio.den)
920 s->avctx->sample_aspect_ratio = (AVRational) {0, 1};
924 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
926 unsigned tag, type, count, off, value = 0, value2 = 0;
932 ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
937 off = bytestream2_tell(&s->gb);
943 value = ff_tget(&s->gb, type, s->le);
946 value = ff_tget(&s->gb, TIFF_LONG, s->le);
947 value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
960 s->is_thumbnail = (value != 0);
969 av_log(s->avctx, AV_LOG_ERROR,
970 "This format is not supported (bpp=%d, %d components)\n",
972 return AVERROR_INVALIDDATA;
983 if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
984 return AVERROR_INVALIDDATA;
985 for (i = 0; i < count; i++)
986 s->bpp += ff_tget(&s->gb, type, s->le);
993 case TIFF_SAMPLES_PER_PIXEL:
995 av_log(s->avctx, AV_LOG_ERROR,
996 "Samples per pixel requires a single value, many provided\n");
997 return AVERROR_INVALIDDATA;
1000 av_log(s->avctx, AV_LOG_ERROR,
1001 "Samples per pixel %d is too large\n", value);
1002 return AVERROR_INVALIDDATA;
1004 if (s->bppcount == 1)
1006 s->bppcount = value;
1010 av_log(s->avctx, AV_LOG_DEBUG, "compression: %d\n", s->compr);
1016 case TIFF_CCITT_RLE:
1023 case TIFF_ADOBE_DEFLATE:
1027 av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
1028 return AVERROR(ENOSYS);
1032 avpriv_report_missing_feature(s->avctx, "JPEG compression");
1033 return AVERROR_PATCHWELCOME;
1038 av_log(s->avctx, AV_LOG_ERROR, "LZMA not compiled in\n");
1039 return AVERROR(ENOSYS);
1042 av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
1044 return AVERROR_INVALIDDATA;
1047 case TIFF_ROWSPERSTRIP:
1048 if (!value || (type == TIFF_LONG && value == UINT_MAX))
1050 s->rps = FFMIN(value, s->height);
1052 case TIFF_STRIP_OFFS:
1054 if (value > INT_MAX) {
1055 av_log(s->avctx, AV_LOG_ERROR,
1056 "strippos %u too large\n", value);
1057 return AVERROR_INVALIDDATA;
1060 s->stripoff = value;
1068 case TIFF_STRIP_SIZE:
1070 if (value > INT_MAX) {
1071 av_log(s->avctx, AV_LOG_ERROR,
1072 "stripsize %u too large\n", value);
1073 return AVERROR_INVALIDDATA;
1075 s->stripsizesoff = 0;
1076 s->stripsize = value;
1079 s->stripsizesoff = off;
1086 set_sar(s, tag, value, value2);
1088 case TIFF_TILE_BYTE_COUNTS:
1089 case TIFF_TILE_LENGTH:
1090 case TIFF_TILE_OFFSETS:
1091 case TIFF_TILE_WIDTH:
1092 av_log(s->avctx, AV_LOG_ERROR, "Tiled images are not supported\n");
1093 return AVERROR_PATCHWELCOME;
1095 case TIFF_PREDICTOR:
1096 s->predictor = value;
1102 s->sub_ifd = ff_tget(&s->gb, TIFF_LONG, s->le); /** Only get the first SubIFD */
1104 case DNG_WHITE_LEVEL:
1105 s->white_level = value;
1107 case TIFF_CFA_PATTERN_DIM:
1108 if (count != 2 || (ff_tget(&s->gb, type, s->le) != 2 &&
1109 ff_tget(&s->gb, type, s->le) != 2)) {
1110 av_log(s->avctx, AV_LOG_ERROR, "CFA Pattern dimensions are not 2x2\n");
1111 return AVERROR_INVALIDDATA;
1114 case TIFF_CFA_PATTERN:
1116 s->pattern[0] = ff_tget(&s->gb, type, s->le);
1117 s->pattern[1] = ff_tget(&s->gb, type, s->le);
1118 s->pattern[2] = ff_tget(&s->gb, type, s->le);
1119 s->pattern[3] = ff_tget(&s->gb, type, s->le);
1121 case TIFF_PHOTOMETRIC:
1123 case TIFF_PHOTOMETRIC_WHITE_IS_ZERO:
1124 case TIFF_PHOTOMETRIC_BLACK_IS_ZERO:
1125 case TIFF_PHOTOMETRIC_RGB:
1126 case TIFF_PHOTOMETRIC_PALETTE:
1127 case TIFF_PHOTOMETRIC_SEPARATED:
1128 case TIFF_PHOTOMETRIC_YCBCR:
1129 case TIFF_PHOTOMETRIC_CFA:
1130 s->photometric = value;
1132 case TIFF_PHOTOMETRIC_ALPHA_MASK:
1133 case TIFF_PHOTOMETRIC_CIE_LAB:
1134 case TIFF_PHOTOMETRIC_ICC_LAB:
1135 case TIFF_PHOTOMETRIC_ITU_LAB:
1136 case TIFF_PHOTOMETRIC_LOG_L:
1137 case TIFF_PHOTOMETRIC_LOG_LUV:
1138 case TIFF_PHOTOMETRIC_LINEAR_RAW:
1139 avpriv_report_missing_feature(s->avctx,
1140 "PhotometricInterpretation 0x%04X",
1142 return AVERROR_PATCHWELCOME;
1144 av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
1145 "unknown\n", value);
1146 return AVERROR_INVALIDDATA;
1149 case TIFF_FILL_ORDER:
1150 if (value < 1 || value > 2) {
1151 av_log(s->avctx, AV_LOG_ERROR,
1152 "Unknown FillOrder value %d, trying default one\n", value);
1155 s->fill_order = value - 1;
1158 GetByteContext pal_gb[3];
1159 off = type_sizes[type];
1160 if (count / 3 > 256 ||
1161 bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
1162 return AVERROR_INVALIDDATA;
1164 pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
1165 bytestream2_skip(&pal_gb[1], count / 3 * off);
1166 bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
1168 off = (type_sizes[type] - 1) << 3;
1170 av_log(s->avctx, AV_LOG_ERROR, "palette shift %d is out of range\n", off);
1171 return AVERROR_INVALIDDATA;
1174 for (i = 0; i < count / 3; i++) {
1175 uint32_t p = 0xFF000000;
1176 p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
1177 p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
1178 p |= ff_tget(&pal_gb[2], type, s->le) >> off;
1181 s->palette_is_set = 1;
1185 s->planar = value == 2;
1187 case TIFF_YCBCR_SUBSAMPLING:
1189 av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n");
1190 return AVERROR_INVALIDDATA;
1192 for (i = 0; i < count; i++) {
1193 s->subsampling[i] = ff_tget(&s->gb, type, s->le);
1194 if (s->subsampling[i] <= 0) {
1195 av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]);
1196 s->subsampling[i] = 1;
1197 return AVERROR_INVALIDDATA;
1201 case TIFF_T4OPTIONS:
1202 if (s->compr == TIFF_G3)
1203 s->fax_opts = value;
1205 case TIFF_T6OPTIONS:
1206 if (s->compr == TIFF_G4)
1207 s->fax_opts = value;
1209 #define ADD_METADATA(count, name, sep)\
1210 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
1211 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
1214 case TIFF_MODEL_PIXEL_SCALE:
1215 ADD_METADATA(count, "ModelPixelScaleTag", NULL);
1217 case TIFF_MODEL_TRANSFORMATION:
1218 ADD_METADATA(count, "ModelTransformationTag", NULL);
1220 case TIFF_MODEL_TIEPOINT:
1221 ADD_METADATA(count, "ModelTiepointTag", NULL);
1223 case TIFF_GEO_KEY_DIRECTORY:
1224 if (s->geotag_count) {
1225 avpriv_request_sample(s->avctx, "Multiple geo key directories\n");
1226 return AVERROR_INVALIDDATA;
1228 ADD_METADATA(1, "GeoTIFF_Version", NULL);
1229 ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
1230 s->geotag_count = ff_tget_short(&s->gb, s->le);
1231 if (s->geotag_count > count / 4 - 1) {
1232 s->geotag_count = count / 4 - 1;
1233 av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
1235 if ( bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4
1236 || s->geotag_count == 0) {
1237 s->geotag_count = 0;
1240 s->geotags = av_mallocz_array(s->geotag_count, sizeof(TiffGeoTag));
1242 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1243 s->geotag_count = 0;
1246 for (i = 0; i < s->geotag_count; i++) {
1247 s->geotags[i].key = ff_tget_short(&s->gb, s->le);
1248 s->geotags[i].type = ff_tget_short(&s->gb, s->le);
1249 s->geotags[i].count = ff_tget_short(&s->gb, s->le);
1251 if (!s->geotags[i].type)
1252 s->geotags[i].val = get_geokey_val(s->geotags[i].key, ff_tget_short(&s->gb, s->le));
1254 s->geotags[i].offset = ff_tget_short(&s->gb, s->le);
1257 case TIFF_GEO_DOUBLE_PARAMS:
1258 if (count >= INT_MAX / sizeof(int64_t))
1259 return AVERROR_INVALIDDATA;
1260 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
1261 return AVERROR_INVALIDDATA;
1262 dp = av_malloc_array(count, sizeof(double));
1264 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1267 for (i = 0; i < count; i++)
1268 dp[i] = ff_tget_double(&s->gb, s->le);
1269 for (i = 0; i < s->geotag_count; i++) {
1270 if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
1271 if (s->geotags[i].count == 0
1272 || s->geotags[i].offset + s->geotags[i].count > count) {
1273 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1274 } else if (s->geotags[i].val) {
1275 av_log(s->avctx, AV_LOG_WARNING, "Duplicate GeoTIFF key %d\n", s->geotags[i].key);
1277 char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
1279 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1281 return AVERROR(ENOMEM);
1283 s->geotags[i].val = ap;
1289 case TIFF_GEO_ASCII_PARAMS:
1290 pos = bytestream2_tell(&s->gb);
1291 for (i = 0; i < s->geotag_count; i++) {
1292 if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
1293 if (s->geotags[i].count == 0
1294 || s->geotags[i].offset + s->geotags[i].count > count) {
1295 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1299 bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
1300 if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
1301 return AVERROR_INVALIDDATA;
1302 if (s->geotags[i].val)
1303 return AVERROR_INVALIDDATA;
1304 ap = av_malloc(s->geotags[i].count);
1306 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1307 return AVERROR(ENOMEM);
1309 bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
1310 ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
1311 s->geotags[i].val = ap;
1317 ADD_METADATA(count, "artist", NULL);
1319 case TIFF_COPYRIGHT:
1320 ADD_METADATA(count, "copyright", NULL);
1323 ADD_METADATA(count, "date", NULL);
1325 case TIFF_DOCUMENT_NAME:
1326 ADD_METADATA(count, "document_name", NULL);
1328 case TIFF_HOST_COMPUTER:
1329 ADD_METADATA(count, "computer", NULL);
1331 case TIFF_IMAGE_DESCRIPTION:
1332 ADD_METADATA(count, "description", NULL);
1335 ADD_METADATA(count, "make", NULL);
1338 ADD_METADATA(count, "model", NULL);
1340 case TIFF_PAGE_NAME:
1341 ADD_METADATA(count, "page_name", NULL);
1343 case TIFF_PAGE_NUMBER:
1344 ADD_METADATA(count, "page_number", " / ");
1345 // need to seek back to re-read the page number
1346 bytestream2_seek(&s->gb, -count * sizeof(uint16_t), SEEK_CUR);
1347 // read the page number
1348 s->cur_page = ff_tget(&s->gb, TIFF_SHORT, s->le);
1349 // get back to where we were before the previous seek
1350 bytestream2_seek(&s->gb, count * sizeof(uint16_t) - sizeof(uint16_t), SEEK_CUR);
1352 case TIFF_SOFTWARE_NAME:
1353 ADD_METADATA(count, "software", NULL);
1357 unsigned int ver[4];
1358 ver[0] = ff_tget(&s->gb, type, s->le);
1359 ver[1] = ff_tget(&s->gb, type, s->le);
1360 ver[2] = ff_tget(&s->gb, type, s->le);
1361 ver[3] = ff_tget(&s->gb, type, s->le);
1363 av_log(s->avctx, AV_LOG_DEBUG, "DNG file, version %u.%u.%u.%u\n",
1364 ver[0], ver[1], ver[2], ver[3]);
1366 tiff_set_type(s, TIFF_TYPE_DNG);
1369 case CINEMADNG_TIME_CODES:
1370 case CINEMADNG_FRAME_RATE:
1371 case CINEMADNG_T_STOP:
1372 case CINEMADNG_REEL_NAME:
1373 case CINEMADNG_CAMERA_LABEL:
1374 tiff_set_type(s, TIFF_TYPE_CINEMADNG);
1377 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1378 av_log(s->avctx, AV_LOG_ERROR,
1379 "Unknown or unsupported tag %d/0x%0X\n",
1381 return AVERROR_INVALIDDATA;
1386 av_log(s->avctx, AV_LOG_ERROR,
1387 "This format is not supported (bpp=%d, %d components)\n",
1390 return AVERROR_INVALIDDATA;
1392 bytestream2_seek(&s->gb, start, SEEK_SET);
1396 static int decode_frame(AVCodecContext *avctx,
1397 void *data, int *got_frame, AVPacket *avpkt)
1399 TiffContext *const s = avctx->priv_data;
1400 AVFrame *const p = data;
1401 ThreadFrame frame = { .f = data };
1403 int le, ret, plane, planes;
1404 int i, j, entries, stride;
1405 unsigned soff, ssize;
1407 GetByteContext stripsizes;
1408 GetByteContext stripdata;
1409 int retry_for_subifd, retry_for_page;
1411 bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1413 // parse image header
1414 if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
1415 av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
1417 } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1418 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1419 return AVERROR_INVALIDDATA;
1422 // TIFF_BPP is not a required tag and defaults to 1
1424 s->is_thumbnail = 0;
1425 s->bppcount = s->bpp = 1;
1426 s->photometric = TIFF_PHOTOMETRIC_NONE;
1427 s->compr = TIFF_RAW;
1432 s->tiff_type = TIFF_TYPE_TIFF;
1435 // Reset these offsets so we can tell if they were set this frame
1436 s->stripsizesoff = s->strippos = 0;
1437 /* parse image file directory */
1438 bytestream2_seek(&s->gb, off, SEEK_SET);
1439 entries = ff_tget_short(&s->gb, le);
1440 if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1441 return AVERROR_INVALIDDATA;
1442 for (i = 0; i < entries; i++) {
1443 if ((ret = tiff_decode_tag(s, p)) < 0)
1447 if (s->get_thumbnail && !s->is_thumbnail) {
1448 av_log(avctx, AV_LOG_INFO, "No embedded thumbnail present\n");
1452 /** whether we should process this IFD's SubIFD */
1453 retry_for_subifd = s->sub_ifd && (s->get_subimage || (!s->get_thumbnail && s->is_thumbnail));
1454 /** whether we should process this multi-page IFD's next page */
1455 retry_for_page = s->get_page && s->cur_page + 1 < s->get_page; // get_page is 1-indexed
1457 if (retry_for_page) {
1458 // set offset to the next IFD
1459 off = ff_tget_long(&s->gb, le);
1460 } else if (retry_for_subifd) {
1461 // set offset to the SubIFD
1465 if (retry_for_subifd || retry_for_page) {
1466 if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1467 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1468 return AVERROR_INVALIDDATA;
1474 for (i = 0; i<s->geotag_count; i++) {
1475 const char *keyname = get_geokey_name(s->geotags[i].key);
1477 av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
1480 if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
1481 av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
1484 ret = av_dict_set(&p->metadata, keyname, s->geotags[i].val, 0);
1486 av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
1491 if (!s->strippos && !s->stripoff) {
1492 av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
1493 return AVERROR_INVALIDDATA;
1495 /* now we have the data and may start decoding */
1496 if ((ret = init_image(s, &frame)) < 0)
1499 if (s->strips == 1 && !s->stripsize) {
1500 av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
1501 s->stripsize = avpkt->size - s->stripoff;
1504 if (s->stripsizesoff) {
1505 if (s->stripsizesoff >= (unsigned)avpkt->size)
1506 return AVERROR_INVALIDDATA;
1507 bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
1508 avpkt->size - s->stripsizesoff);
1511 if (s->strippos >= (unsigned)avpkt->size)
1512 return AVERROR_INVALIDDATA;
1513 bytestream2_init(&stripdata, avpkt->data + s->strippos,
1514 avpkt->size - s->strippos);
1517 if (s->rps <= 0 || s->rps % s->subsampling[1]) {
1518 av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1519 return AVERROR_INVALIDDATA;
1522 planes = s->planar ? s->bppcount : 1;
1523 for (plane = 0; plane < planes; plane++) {
1524 uint8_t *five_planes = NULL;
1525 int remaining = avpkt->size;
1527 stride = p->linesize[plane];
1528 dst = p->data[plane];
1529 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
1530 s->avctx->pix_fmt == AV_PIX_FMT_RGBA) {
1531 stride = stride * 5 / 4;
1533 dst = av_malloc(stride * s->height);
1535 return AVERROR(ENOMEM);
1537 for (i = 0; i < s->height; i += s->rps) {
1539 dst += s->rps * stride;
1540 if (s->stripsizesoff)
1541 ssize = ff_tget(&stripsizes, s->sstype, le);
1543 ssize = s->stripsize;
1546 soff = ff_tget(&stripdata, s->sot, le);
1550 if (soff > avpkt->size || ssize > avpkt->size - soff || ssize > remaining) {
1551 av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
1552 av_freep(&five_planes);
1553 return AVERROR_INVALIDDATA;
1556 if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i,
1557 FFMIN(s->rps, s->height - i))) < 0) {
1558 if (avctx->err_recognition & AV_EF_EXPLODE) {
1559 av_freep(&five_planes);
1565 decoded_height = FFMIN(i, s->height);
1567 if (s->predictor == 2) {
1568 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1569 av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported");
1570 return AVERROR_PATCHWELCOME;
1572 dst = five_planes ? five_planes : p->data[plane];
1575 soff = FFMAX(soff / s->bppcount, 1);
1576 ssize = s->width * soff;
1577 if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
1578 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
1579 s->avctx->pix_fmt == AV_PIX_FMT_GRAY16LE ||
1580 s->avctx->pix_fmt == AV_PIX_FMT_YA16LE ||
1581 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
1582 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
1583 for (i = 0; i < decoded_height; i++) {
1584 for (j = soff; j < ssize; j += 2)
1585 AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
1588 } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
1589 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
1590 s->avctx->pix_fmt == AV_PIX_FMT_GRAY16BE ||
1591 s->avctx->pix_fmt == AV_PIX_FMT_YA16BE ||
1592 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
1593 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
1594 for (i = 0; i < decoded_height; i++) {
1595 for (j = soff; j < ssize; j += 2)
1596 AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
1600 for (i = 0; i < decoded_height; i++) {
1601 for (j = soff; j < ssize; j++)
1602 dst[j] += dst[j - soff];
1608 if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) {
1609 int c = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255);
1610 dst = p->data[plane];
1611 for (i = 0; i < s->height; i++) {
1612 for (j = 0; j < stride; j++)
1613 dst[j] = c - dst[j];
1618 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
1619 (s->avctx->pix_fmt == AV_PIX_FMT_RGB0 || s->avctx->pix_fmt == AV_PIX_FMT_RGBA)) {
1620 int x = s->avctx->pix_fmt == AV_PIX_FMT_RGB0 ? 4 : 5;
1621 uint8_t *src = five_planes ? five_planes : p->data[plane];
1622 dst = p->data[plane];
1623 for (i = 0; i < s->height; i++) {
1624 for (j = 0; j < s->width; j++) {
1625 int k = 255 - src[x * j + 3];
1626 int r = (255 - src[x * j ]) * k;
1627 int g = (255 - src[x * j + 1]) * k;
1628 int b = (255 - src[x * j + 2]) * k;
1629 dst[4 * j ] = r * 257 >> 16;
1630 dst[4 * j + 1] = g * 257 >> 16;
1631 dst[4 * j + 2] = b * 257 >> 16;
1632 dst[4 * j + 3] = s->avctx->pix_fmt == AV_PIX_FMT_RGBA ? src[x * j + 4] : 255;
1635 dst += p->linesize[plane];
1637 av_freep(&five_planes);
1638 } else if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
1639 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) {
1640 dst = p->data[plane];
1641 for (i = 0; i < s->height; i++) {
1642 for (j = 0; j < s->width; j++) {
1643 uint64_t k = 65535 - AV_RB16(dst + 8 * j + 6);
1644 uint64_t r = (65535 - AV_RB16(dst + 8 * j )) * k;
1645 uint64_t g = (65535 - AV_RB16(dst + 8 * j + 2)) * k;
1646 uint64_t b = (65535 - AV_RB16(dst + 8 * j + 4)) * k;
1647 AV_WB16(dst + 8 * j , r * 65537 >> 32);
1648 AV_WB16(dst + 8 * j + 2, g * 65537 >> 32);
1649 AV_WB16(dst + 8 * j + 4, b * 65537 >> 32);
1650 AV_WB16(dst + 8 * j + 6, 65535);
1652 dst += p->linesize[plane];
1657 if (s->planar && s->bppcount > 2) {
1658 FFSWAP(uint8_t*, p->data[0], p->data[2]);
1659 FFSWAP(int, p->linesize[0], p->linesize[2]);
1660 FFSWAP(uint8_t*, p->data[0], p->data[1]);
1661 FFSWAP(int, p->linesize[0], p->linesize[1]);
1664 if (s->is_bayer && s->white_level && s->bpp == 16) {
1665 uint16_t *dst = (uint16_t *)p->data[0];
1666 for (i = 0; i < s->height; i++) {
1667 for (j = 0; j < s->width; j++)
1668 dst[j] = FFMIN((dst[j] / (float)s->white_level) * 65535, 65535);
1678 static av_cold int tiff_init(AVCodecContext *avctx)
1680 TiffContext *s = avctx->priv_data;
1685 s->subsampling[1] = 1;
1687 ff_lzw_decode_open(&s->lzw);
1689 return AVERROR(ENOMEM);
1690 ff_ccitt_unpack_init();
1695 static av_cold int tiff_end(AVCodecContext *avctx)
1697 TiffContext *const s = avctx->priv_data;
1701 ff_lzw_decode_close(&s->lzw);
1702 av_freep(&s->deinvert_buf);
1703 s->deinvert_buf_size = 0;
1704 av_freep(&s->yuv_line);
1705 s->yuv_line_size = 0;
1706 av_freep(&s->fax_buffer);
1707 s->fax_buffer_size = 0;
1711 #define OFFSET(x) offsetof(TiffContext, x)
1712 static const AVOption tiff_options[] = {
1713 { "subimage", "decode subimage instead if available", OFFSET(get_subimage), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM },
1714 { "thumbnail", "decode embedded thumbnail subimage instead if available", OFFSET(get_thumbnail), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM },
1715 { "page", "page number of multi-page image to decode (starting from 1)", OFFSET(get_page), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM },
1719 static const AVClass tiff_decoder_class = {
1720 .class_name = "TIFF decoder",
1721 .item_name = av_default_item_name,
1722 .option = tiff_options,
1723 .version = LIBAVUTIL_VERSION_INT,
1726 AVCodec ff_tiff_decoder = {
1728 .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
1729 .type = AVMEDIA_TYPE_VIDEO,
1730 .id = AV_CODEC_ID_TIFF,
1731 .priv_data_size = sizeof(TiffContext),
1734 .decode = decode_frame,
1735 .init_thread_copy = ONLY_IF_THREADS_ENABLED(tiff_init),
1736 .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
1737 .priv_class = &tiff_decoder_class,