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;
60 unsigned int bpp, bppcount;
61 uint32_t palette[256];
65 enum TiffPhotometric photometric;
79 int strips, rps, sstype;
81 int stripsizesoff, stripsize, stripoff, strippos;
84 uint8_t *deinvert_buf;
85 int deinvert_buf_size;
87 unsigned int yuv_line_size;
89 unsigned int fax_buffer_size;
95 static void free_geotags(TiffContext *const s)
98 for (i = 0; i < s->geotag_count; i++) {
99 if (s->geotags[i].val)
100 av_freep(&s->geotags[i].val);
102 av_freep(&s->geotags);
106 #define RET_GEOKEY(TYPE, array, element)\
107 if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
108 key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_name_type_map))\
109 return ff_tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].element;
111 static const char *get_geokey_name(int key)
113 RET_GEOKEY(VERT, vert, name);
114 RET_GEOKEY(PROJ, proj, name);
115 RET_GEOKEY(GEOG, geog, name);
116 RET_GEOKEY(CONF, conf, name);
121 static int get_geokey_type(int key)
123 RET_GEOKEY(VERT, vert, type);
124 RET_GEOKEY(PROJ, proj, type);
125 RET_GEOKEY(GEOG, geog, type);
126 RET_GEOKEY(CONF, conf, type);
128 return AVERROR_INVALIDDATA;
131 static int cmp_id_key(const void *id, const void *k)
133 return *(const int*)id - ((const TiffGeoTagKeyName*)k)->key;
136 static const char *search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
138 TiffGeoTagKeyName *r = bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key);
145 static char *get_geokey_val(int key, int val)
149 if (val == TIFF_GEO_KEY_UNDEFINED)
150 return av_strdup("undefined");
151 if (val == TIFF_GEO_KEY_USER_DEFINED)
152 return av_strdup("User-Defined");
154 #define RET_GEOKEY_VAL(TYPE, array)\
155 if (val >= TIFF_##TYPE##_OFFSET &&\
156 val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_codes))\
157 return av_strdup(ff_tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET]);
160 case TIFF_GT_MODEL_TYPE_GEOKEY:
161 RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
163 case TIFF_GT_RASTER_TYPE_GEOKEY:
164 RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
166 case TIFF_GEOG_LINEAR_UNITS_GEOKEY:
167 case TIFF_PROJ_LINEAR_UNITS_GEOKEY:
168 case TIFF_VERTICAL_UNITS_GEOKEY:
169 RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
171 case TIFF_GEOG_ANGULAR_UNITS_GEOKEY:
172 case TIFF_GEOG_AZIMUTH_UNITS_GEOKEY:
173 RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
175 case TIFF_GEOGRAPHIC_TYPE_GEOKEY:
176 RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
177 RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
179 case TIFF_GEOG_GEODETIC_DATUM_GEOKEY:
180 RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
181 RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
183 case TIFF_GEOG_ELLIPSOID_GEOKEY:
184 RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
186 case TIFF_GEOG_PRIME_MERIDIAN_GEOKEY:
187 RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
189 case TIFF_PROJECTED_CS_TYPE_GEOKEY:
190 ap = av_strdup(search_keyval(ff_tiff_proj_cs_type_codes, FF_ARRAY_ELEMS(ff_tiff_proj_cs_type_codes), val));
193 case TIFF_PROJECTION_GEOKEY:
194 ap = av_strdup(search_keyval(ff_tiff_projection_codes, FF_ARRAY_ELEMS(ff_tiff_projection_codes), val));
197 case TIFF_PROJ_COORD_TRANS_GEOKEY:
198 RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
200 case TIFF_VERTICAL_CS_TYPE_GEOKEY:
201 RET_GEOKEY_VAL(VERT_CS, vert_cs);
202 RET_GEOKEY_VAL(ORTHO_VERT_CS, ortho_vert_cs);
209 snprintf(ap, 14, "Unknown-%d", val);
213 static char *doubles2str(double *dp, int count, const char *sep)
217 uint64_t component_len;
218 if (!sep) sep = ", ";
219 component_len = 24LL + strlen(sep);
220 if (count >= (INT_MAX - 1)/component_len)
222 ap = av_malloc(component_len * count + 1);
227 for (i = 0; i < count; i++) {
228 unsigned l = snprintf(ap, component_len, "%.15g%s", dp[i], sep);
229 if(l >= component_len) {
235 ap0[strlen(ap0) - strlen(sep)] = '\0';
239 static int add_metadata(int count, int type,
240 const char *name, const char *sep, TiffContext *s, AVFrame *frame)
243 case TIFF_DOUBLE: return ff_tadd_doubles_metadata(count, name, sep, &s->gb, s->le, &frame->metadata);
244 case TIFF_SHORT : return ff_tadd_shorts_metadata(count, name, sep, &s->gb, s->le, 0, &frame->metadata);
245 case TIFF_STRING: return ff_tadd_string_metadata(count, name, &s->gb, s->le, &frame->metadata);
246 default : return AVERROR_INVALIDDATA;
250 static void av_always_inline horizontal_fill(TiffContext *s,
251 unsigned int bpp, uint8_t* dst,
252 int usePtr, const uint8_t *src,
253 uint8_t c, int width, int offset)
257 while (--width >= 0) {
258 dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
259 dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
260 dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
261 dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
262 dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
263 dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
264 dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
265 dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
269 while (--width >= 0) {
270 dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
271 dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
272 dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
273 dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
277 while (--width >= 0) {
278 dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
279 dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
283 uint16_t *dst16 = (uint16_t *)dst;
285 init_get_bits8(&gb, src, width);
286 for (int i = 0; i < s->width; i++) {
287 dst16[i] = get_bits(&gb, 12) << 4;
293 memcpy(dst + offset, src, width);
295 memset(dst + offset, c, width);
300 static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
304 av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
305 if (!s->deinvert_buf)
306 return AVERROR(ENOMEM);
307 for (i = 0; i < size; i++)
308 s->deinvert_buf[i] = ff_reverse[src[i]];
313 static void unpack_gray(TiffContext *s, AVFrame *p,
314 const uint8_t *src, int lnum, int width, int bpp)
317 uint16_t *dst = (uint16_t *)(p->data[0] + lnum * p->linesize[0]);
319 init_get_bits8(&gb, src, width);
321 for (int i = 0; i < s->width; i++) {
322 dst[i] = get_bits(&gb, bpp);
326 static void unpack_yuv(TiffContext *s, AVFrame *p,
327 const uint8_t *src, int lnum)
330 int w = (s->width - 1) / s->subsampling[0] + 1;
331 uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
332 uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
333 if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
334 for (i = 0; i < w; i++) {
335 for (j = 0; j < s->subsampling[1]; j++)
336 for (k = 0; k < s->subsampling[0]; k++)
337 p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
338 FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++;
343 for (i = 0; i < w; i++) {
344 for (j = 0; j < s->subsampling[1]; j++)
345 for (k = 0; k < s->subsampling[0]; k++)
346 p->data[0][(lnum + j) * p->linesize[0] +
347 i * s->subsampling[0] + k] = *src++;
355 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
358 z_stream zstream = { 0 };
361 zstream.next_in = (uint8_t *)src;
362 zstream.avail_in = size;
363 zstream.next_out = dst;
364 zstream.avail_out = *len;
365 zret = inflateInit(&zstream);
367 av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
370 zret = inflate(&zstream, Z_SYNC_FLUSH);
371 inflateEnd(&zstream);
372 *len = zstream.total_out;
373 return zret == Z_STREAM_END ? Z_OK : zret;
376 static int tiff_unpack_zlib(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
377 const uint8_t *src, int size, int width, int lines,
378 int strip_start, int is_yuv)
381 unsigned long outlen;
383 outlen = width * lines;
384 zbuf = av_malloc(outlen);
386 return AVERROR(ENOMEM);
388 if ((ret = deinvert_buffer(s, src, size)) < 0) {
392 src = s->deinvert_buf;
394 ret = tiff_uncompress(zbuf, &outlen, src, size);
396 av_log(s->avctx, AV_LOG_ERROR,
397 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
398 (unsigned long)width * lines, ret);
400 return AVERROR_UNKNOWN;
403 for (line = 0; line < lines; line++) {
404 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
405 horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
407 memcpy(dst, src, width);
410 unpack_yuv(s, p, dst, strip_start + line);
411 line += s->subsampling[1] - 1;
422 static int tiff_uncompress_lzma(uint8_t *dst, uint64_t *len, const uint8_t *src,
425 lzma_stream stream = LZMA_STREAM_INIT;
428 stream.next_in = (uint8_t *)src;
429 stream.avail_in = size;
430 stream.next_out = dst;
431 stream.avail_out = *len;
432 ret = lzma_stream_decoder(&stream, UINT64_MAX, 0);
433 if (ret != LZMA_OK) {
434 av_log(NULL, AV_LOG_ERROR, "LZMA init error: %d\n", ret);
437 ret = lzma_code(&stream, LZMA_RUN);
439 *len = stream.total_out;
440 return ret == LZMA_STREAM_END ? LZMA_OK : ret;
443 static int tiff_unpack_lzma(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
444 const uint8_t *src, int size, int width, int lines,
445 int strip_start, int is_yuv)
447 uint64_t outlen = width * (uint64_t)lines;
449 uint8_t *buf = av_malloc(outlen);
451 return AVERROR(ENOMEM);
453 if ((ret = deinvert_buffer(s, src, size)) < 0) {
457 src = s->deinvert_buf;
459 ret = tiff_uncompress_lzma(buf, &outlen, src, size);
460 if (ret != LZMA_OK) {
461 av_log(s->avctx, AV_LOG_ERROR,
462 "Uncompressing failed (%"PRIu64" of %"PRIu64") with error %d\n", outlen,
463 (uint64_t)width * lines, ret);
465 return AVERROR_UNKNOWN;
468 for (line = 0; line < lines; line++) {
469 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
470 horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
472 memcpy(dst, src, width);
475 unpack_yuv(s, p, dst, strip_start + line);
476 line += s->subsampling[1] - 1;
486 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
487 const uint8_t *src, int size, int width, int lines)
493 av_fast_padded_malloc(&s->fax_buffer, &s->fax_buffer_size, size);
494 src2 = s->fax_buffer;
497 av_log(s->avctx, AV_LOG_ERROR,
498 "Error allocating temporary buffer\n");
499 return AVERROR(ENOMEM);
502 if (!s->fill_order) {
503 memcpy(src2, src, size);
505 for (i = 0; i < size; i++)
506 src2[i] = ff_reverse[src[i]];
508 memset(src2 + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
509 ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
510 s->compr, s->fax_opts);
511 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
512 for (line = 0; line < lines; line++) {
513 horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
519 static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
520 const uint8_t *src, int size, int strip_start, int lines)
523 int c, line, pixels, code, ret;
524 const uint8_t *ssrc = src;
525 int width = ((s->width * s->bpp) + 7) >> 3;
526 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(p->format);
527 int is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) &&
528 (desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
529 desc->nb_components >= 3;
532 width /= s->bppcount;
535 return AVERROR_INVALIDDATA;
538 int bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
539 s->subsampling[0] * s->subsampling[1] + 7) >> 3;
540 av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row);
541 if (s->yuv_line == NULL) {
542 av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
543 return AVERROR(ENOMEM);
548 width = (s->width - 1) / s->subsampling[0] + 1;
549 width = width * s->subsampling[0] * s->subsampling[1] + 2*width;
550 av_assert0(width <= bytes_per_row);
551 av_assert0(s->bpp == 24);
554 width = (s->bpp * s->width + 7) >> 3;
556 if (p->format == AV_PIX_FMT_GRAY12) {
557 av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, width);
558 if (s->yuv_line == NULL) {
559 av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
560 return AVERROR(ENOMEM);
566 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
568 return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines,
569 strip_start, is_yuv);
571 av_log(s->avctx, AV_LOG_ERROR,
572 "zlib support not enabled, "
573 "deflate compression not supported\n");
574 return AVERROR(ENOSYS);
577 if (s->compr == TIFF_LZMA) {
579 return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
580 strip_start, is_yuv);
582 av_log(s->avctx, AV_LOG_ERROR,
583 "LZMA support not enabled\n");
584 return AVERROR(ENOSYS);
587 if (s->compr == TIFF_LZW) {
589 if ((ret = deinvert_buffer(s, src, size)) < 0)
591 ssrc = src = s->deinvert_buf;
593 if (size > 1 && !src[0] && (src[1]&1)) {
594 av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
596 if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
597 av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
600 for (line = 0; line < lines; line++) {
601 pixels = ff_lzw_decode(s->lzw, dst, width);
602 if (pixels < width) {
603 av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
605 return AVERROR_INVALIDDATA;
607 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
608 horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
610 unpack_yuv(s, p, dst, strip_start + line);
611 line += s->subsampling[1] - 1;
612 } else if (p->format == AV_PIX_FMT_GRAY12) {
613 unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
619 if (s->compr == TIFF_CCITT_RLE ||
620 s->compr == TIFF_G3 ||
621 s->compr == TIFF_G4) {
622 if (is_yuv || p->format == AV_PIX_FMT_GRAY12)
623 return AVERROR_INVALIDDATA;
625 return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
628 bytestream2_init(&s->gb, src, size);
629 bytestream2_init_writer(&pb, dst, is_yuv ? s->yuv_line_size : (stride * lines));
631 for (line = 0; line < lines; line++) {
632 if (src - ssrc > size) {
633 av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
634 return AVERROR_INVALIDDATA;
637 if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb))
639 bytestream2_seek_p(&pb, stride * line, SEEK_SET);
642 if (ssrc + size - src < width)
643 return AVERROR_INVALIDDATA;
645 if (!s->fill_order) {
646 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 || s->is_bayer),
647 dst, 1, src, 0, width, 0);
650 for (i = 0; i < width; i++)
651 dst[i] = ff_reverse[src[i]];
656 for (pixels = 0; pixels < width;) {
657 if (ssrc + size - src < 2) {
658 av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
659 return AVERROR_INVALIDDATA;
661 code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
664 if (pixels + code > width ||
665 ssrc + size - src < code) {
666 av_log(s->avctx, AV_LOG_ERROR,
667 "Copy went out of bounds\n");
668 return AVERROR_INVALIDDATA;
670 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
671 dst, 1, src, 0, code, pixels);
674 } else if (code != -128) { // -127..-1
676 if (pixels + code > width) {
677 av_log(s->avctx, AV_LOG_ERROR,
678 "Run went out of bounds\n");
679 return AVERROR_INVALIDDATA;
682 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
683 dst, 0, NULL, c, code, pixels);
689 for (i = 0; i < width; i++)
690 dst[i] = ff_reverse[dst[i]];
695 unpack_yuv(s, p, dst, strip_start + line);
696 line += s->subsampling[1] - 1;
697 } else if (p->format == AV_PIX_FMT_GRAY12) {
698 unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
705 static int init_image(TiffContext *s, ThreadFrame *frame)
708 int create_gray_palette = 0;
710 // make sure there is no aliasing in the following switch
711 if (s->bpp >= 100 || s->bppcount >= 10) {
712 av_log(s->avctx, AV_LOG_ERROR,
713 "Unsupported image parameters: bpp=%d, bppcount=%d\n",
714 s->bpp, s->bppcount);
715 return AVERROR_INVALIDDATA;
718 switch (s->planar * 1000 + s->bpp * 10 + s->bppcount + s->is_bayer * 10000) {
720 if (!s->palette_is_set) {
721 s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
726 s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
727 if (!s->palette_is_set) {
728 create_gray_palette = 1;
732 s->avctx->pix_fmt = s->palette_is_set ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_GRAY8;
735 s->avctx->pix_fmt = AV_PIX_FMT_GRAY12;
738 switch (AV_RL32(s->pattern)) {
740 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB8;
743 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR8;
746 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG8;
749 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG8;
752 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
753 AV_RL32(s->pattern));
754 return AVERROR_PATCHWELCOME;
758 switch (AV_RL32(s->pattern)) {
760 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_RGGB16LE : AV_PIX_FMT_BAYER_RGGB16BE;
763 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_BGGR16LE : AV_PIX_FMT_BAYER_BGGR16BE;
766 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GBRG16LE : AV_PIX_FMT_BAYER_GBRG16BE;
769 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GRBG16LE : AV_PIX_FMT_BAYER_GRBG16BE;
772 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
773 AV_RL32(s->pattern));
774 return AVERROR_PATCHWELCOME;
778 switch (AV_RL32(s->pattern)) {
780 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_RGGB16LE : AV_PIX_FMT_BAYER_RGGB16BE;
783 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_BGGR16LE : AV_PIX_FMT_BAYER_BGGR16BE;
786 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GBRG16LE : AV_PIX_FMT_BAYER_GBRG16BE;
789 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GRBG16LE : AV_PIX_FMT_BAYER_GRBG16BE;
792 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
793 AV_RL32(s->pattern));
794 return AVERROR_PATCHWELCOME;
798 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
799 if (s->subsampling[0] == 1 && s->subsampling[1] == 1) {
800 s->avctx->pix_fmt = AV_PIX_FMT_YUV444P;
801 } else if (s->subsampling[0] == 2 && s->subsampling[1] == 1) {
802 s->avctx->pix_fmt = AV_PIX_FMT_YUV422P;
803 } else if (s->subsampling[0] == 4 && s->subsampling[1] == 1) {
804 s->avctx->pix_fmt = AV_PIX_FMT_YUV411P;
805 } else if (s->subsampling[0] == 1 && s->subsampling[1] == 2) {
806 s->avctx->pix_fmt = AV_PIX_FMT_YUV440P;
807 } else if (s->subsampling[0] == 2 && s->subsampling[1] == 2) {
808 s->avctx->pix_fmt = AV_PIX_FMT_YUV420P;
809 } else if (s->subsampling[0] == 4 && s->subsampling[1] == 4) {
810 s->avctx->pix_fmt = AV_PIX_FMT_YUV410P;
812 av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr subsampling\n");
813 return AVERROR_PATCHWELCOME;
816 s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
819 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
822 s->avctx->pix_fmt = AV_PIX_FMT_YA8;
825 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_YA16LE : AV_PIX_FMT_YA16BE;
828 s->avctx->pix_fmt = s->photometric == TIFF_PHOTOMETRIC_SEPARATED ? AV_PIX_FMT_RGB0 : AV_PIX_FMT_RGBA;
831 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
834 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
837 s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
840 s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
843 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE;
846 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE;
849 av_log(s->avctx, AV_LOG_ERROR,
850 "This format is not supported (bpp=%d, bppcount=%d)\n",
851 s->bpp, s->bppcount);
852 return AVERROR_INVALIDDATA;
855 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
856 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
857 if((desc->flags & AV_PIX_FMT_FLAG_RGB) ||
858 !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) ||
859 desc->nb_components < 3) {
860 av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr variant\n");
861 return AVERROR_INVALIDDATA;
865 if (s->width != s->avctx->width || s->height != s->avctx->height) {
866 ret = ff_set_dimensions(s->avctx, s->width, s->height);
870 if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
872 if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
873 if (!create_gray_palette)
874 memcpy(frame->f->data[1], s->palette, sizeof(s->palette));
876 /* make default grayscale pal */
878 uint32_t *pal = (uint32_t *)frame->f->data[1];
879 for (i = 0; i < 1<<s->bpp; i++)
880 pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
886 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
888 int offset = tag == TIFF_YRES ? 2 : 0;
889 s->res[offset++] = num;
890 s->res[offset] = den;
891 if (s->res[0] && s->res[1] && s->res[2] && s->res[3]) {
892 uint64_t num = s->res[2] * (uint64_t)s->res[1];
893 uint64_t den = s->res[0] * (uint64_t)s->res[3];
894 if (num > INT64_MAX || den > INT64_MAX) {
898 av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den,
899 num, den, INT32_MAX);
900 if (!s->avctx->sample_aspect_ratio.den)
901 s->avctx->sample_aspect_ratio = (AVRational) {0, 1};
905 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
907 unsigned tag, type, count, off, value = 0, value2 = 0;
913 ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
918 off = bytestream2_tell(&s->gb);
924 value = ff_tget(&s->gb, type, s->le);
927 value = ff_tget(&s->gb, TIFF_LONG, s->le);
928 value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
948 av_log(s->avctx, AV_LOG_ERROR,
949 "This format is not supported (bpp=%d, %d components)\n",
951 return AVERROR_INVALIDDATA;
962 if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
963 return AVERROR_INVALIDDATA;
964 for (i = 0; i < count; i++)
965 s->bpp += ff_tget(&s->gb, type, s->le);
972 case TIFF_SAMPLES_PER_PIXEL:
974 av_log(s->avctx, AV_LOG_ERROR,
975 "Samples per pixel requires a single value, many provided\n");
976 return AVERROR_INVALIDDATA;
979 av_log(s->avctx, AV_LOG_ERROR,
980 "Samples per pixel %d is too large\n", value);
981 return AVERROR_INVALIDDATA;
983 if (s->bppcount == 1)
989 av_log(s->avctx, AV_LOG_DEBUG, "compression: %d\n", s->compr);
1002 case TIFF_ADOBE_DEFLATE:
1006 av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
1007 return AVERROR(ENOSYS);
1011 avpriv_report_missing_feature(s->avctx, "JPEG compression");
1012 return AVERROR_PATCHWELCOME;
1017 av_log(s->avctx, AV_LOG_ERROR, "LZMA not compiled in\n");
1018 return AVERROR(ENOSYS);
1021 av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
1023 return AVERROR_INVALIDDATA;
1026 case TIFF_ROWSPERSTRIP:
1027 if (!value || (type == TIFF_LONG && value == UINT_MAX))
1029 s->rps = FFMIN(value, s->height);
1031 case TIFF_STRIP_OFFS:
1033 if (value > INT_MAX) {
1034 av_log(s->avctx, AV_LOG_ERROR,
1035 "strippos %u too large\n", value);
1036 return AVERROR_INVALIDDATA;
1039 s->stripoff = value;
1047 case TIFF_STRIP_SIZE:
1049 if (value > INT_MAX) {
1050 av_log(s->avctx, AV_LOG_ERROR,
1051 "stripsize %u too large\n", value);
1052 return AVERROR_INVALIDDATA;
1054 s->stripsizesoff = 0;
1055 s->stripsize = value;
1058 s->stripsizesoff = off;
1065 set_sar(s, tag, value, value2);
1067 case TIFF_TILE_BYTE_COUNTS:
1068 case TIFF_TILE_LENGTH:
1069 case TIFF_TILE_OFFSETS:
1070 case TIFF_TILE_WIDTH:
1071 av_log(s->avctx, AV_LOG_ERROR, "Tiled images are not supported\n");
1072 return AVERROR_PATCHWELCOME;
1074 case TIFF_PREDICTOR:
1075 s->predictor = value;
1080 case TIFF_WHITE_LEVEL:
1081 s->white_level = value;
1083 case TIFF_CFA_PATTERN_DIM:
1084 if (count != 2 || (ff_tget(&s->gb, type, s->le) != 2 &&
1085 ff_tget(&s->gb, type, s->le) != 2)) {
1086 av_log(s->avctx, AV_LOG_ERROR, "CFA Pattern dimensions are not 2x2\n");
1087 return AVERROR_INVALIDDATA;
1090 case TIFF_CFA_PATTERN:
1092 s->pattern[0] = ff_tget(&s->gb, type, s->le);
1093 s->pattern[1] = ff_tget(&s->gb, type, s->le);
1094 s->pattern[2] = ff_tget(&s->gb, type, s->le);
1095 s->pattern[3] = ff_tget(&s->gb, type, s->le);
1097 case TIFF_PHOTOMETRIC:
1099 case TIFF_PHOTOMETRIC_WHITE_IS_ZERO:
1100 case TIFF_PHOTOMETRIC_BLACK_IS_ZERO:
1101 case TIFF_PHOTOMETRIC_RGB:
1102 case TIFF_PHOTOMETRIC_PALETTE:
1103 case TIFF_PHOTOMETRIC_SEPARATED:
1104 case TIFF_PHOTOMETRIC_YCBCR:
1105 case TIFF_PHOTOMETRIC_CFA:
1106 s->photometric = value;
1108 case TIFF_PHOTOMETRIC_ALPHA_MASK:
1109 case TIFF_PHOTOMETRIC_CIE_LAB:
1110 case TIFF_PHOTOMETRIC_ICC_LAB:
1111 case TIFF_PHOTOMETRIC_ITU_LAB:
1112 case TIFF_PHOTOMETRIC_LOG_L:
1113 case TIFF_PHOTOMETRIC_LOG_LUV:
1114 case TIFF_PHOTOMETRIC_LINEAR_RAW:
1115 avpriv_report_missing_feature(s->avctx,
1116 "PhotometricInterpretation 0x%04X",
1118 return AVERROR_PATCHWELCOME;
1120 av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
1121 "unknown\n", value);
1122 return AVERROR_INVALIDDATA;
1125 case TIFF_FILL_ORDER:
1126 if (value < 1 || value > 2) {
1127 av_log(s->avctx, AV_LOG_ERROR,
1128 "Unknown FillOrder value %d, trying default one\n", value);
1131 s->fill_order = value - 1;
1134 GetByteContext pal_gb[3];
1135 off = type_sizes[type];
1136 if (count / 3 > 256 ||
1137 bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
1138 return AVERROR_INVALIDDATA;
1140 pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
1141 bytestream2_skip(&pal_gb[1], count / 3 * off);
1142 bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
1144 off = (type_sizes[type] - 1) << 3;
1146 av_log(s->avctx, AV_LOG_ERROR, "palette shift %d is out of range\n", off);
1147 return AVERROR_INVALIDDATA;
1150 for (i = 0; i < count / 3; i++) {
1151 uint32_t p = 0xFF000000;
1152 p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
1153 p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
1154 p |= ff_tget(&pal_gb[2], type, s->le) >> off;
1157 s->palette_is_set = 1;
1161 s->planar = value == 2;
1163 case TIFF_YCBCR_SUBSAMPLING:
1165 av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n");
1166 return AVERROR_INVALIDDATA;
1168 for (i = 0; i < count; i++) {
1169 s->subsampling[i] = ff_tget(&s->gb, type, s->le);
1170 if (s->subsampling[i] <= 0) {
1171 av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]);
1172 s->subsampling[i] = 1;
1173 return AVERROR_INVALIDDATA;
1177 case TIFF_T4OPTIONS:
1178 if (s->compr == TIFF_G3)
1179 s->fax_opts = value;
1181 case TIFF_T6OPTIONS:
1182 if (s->compr == TIFF_G4)
1183 s->fax_opts = value;
1185 #define ADD_METADATA(count, name, sep)\
1186 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
1187 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
1190 case TIFF_MODEL_PIXEL_SCALE:
1191 ADD_METADATA(count, "ModelPixelScaleTag", NULL);
1193 case TIFF_MODEL_TRANSFORMATION:
1194 ADD_METADATA(count, "ModelTransformationTag", NULL);
1196 case TIFF_MODEL_TIEPOINT:
1197 ADD_METADATA(count, "ModelTiepointTag", NULL);
1199 case TIFF_GEO_KEY_DIRECTORY:
1200 if (s->geotag_count) {
1201 avpriv_request_sample(s->avctx, "Multiple geo key directories\n");
1202 return AVERROR_INVALIDDATA;
1204 ADD_METADATA(1, "GeoTIFF_Version", NULL);
1205 ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
1206 s->geotag_count = ff_tget_short(&s->gb, s->le);
1207 if (s->geotag_count > count / 4 - 1) {
1208 s->geotag_count = count / 4 - 1;
1209 av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
1211 if ( bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4
1212 || s->geotag_count == 0) {
1213 s->geotag_count = 0;
1216 s->geotags = av_mallocz_array(s->geotag_count, sizeof(TiffGeoTag));
1218 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1219 s->geotag_count = 0;
1222 for (i = 0; i < s->geotag_count; i++) {
1223 s->geotags[i].key = ff_tget_short(&s->gb, s->le);
1224 s->geotags[i].type = ff_tget_short(&s->gb, s->le);
1225 s->geotags[i].count = ff_tget_short(&s->gb, s->le);
1227 if (!s->geotags[i].type)
1228 s->geotags[i].val = get_geokey_val(s->geotags[i].key, ff_tget_short(&s->gb, s->le));
1230 s->geotags[i].offset = ff_tget_short(&s->gb, s->le);
1233 case TIFF_GEO_DOUBLE_PARAMS:
1234 if (count >= INT_MAX / sizeof(int64_t))
1235 return AVERROR_INVALIDDATA;
1236 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
1237 return AVERROR_INVALIDDATA;
1238 dp = av_malloc_array(count, sizeof(double));
1240 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1243 for (i = 0; i < count; i++)
1244 dp[i] = ff_tget_double(&s->gb, s->le);
1245 for (i = 0; i < s->geotag_count; i++) {
1246 if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
1247 if (s->geotags[i].count == 0
1248 || s->geotags[i].offset + s->geotags[i].count > count) {
1249 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1250 } else if (s->geotags[i].val) {
1251 av_log(s->avctx, AV_LOG_WARNING, "Duplicate GeoTIFF key %d\n", s->geotags[i].key);
1253 char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
1255 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1257 return AVERROR(ENOMEM);
1259 s->geotags[i].val = ap;
1265 case TIFF_GEO_ASCII_PARAMS:
1266 pos = bytestream2_tell(&s->gb);
1267 for (i = 0; i < s->geotag_count; i++) {
1268 if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
1269 if (s->geotags[i].count == 0
1270 || s->geotags[i].offset + s->geotags[i].count > count) {
1271 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1275 bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
1276 if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
1277 return AVERROR_INVALIDDATA;
1278 if (s->geotags[i].val)
1279 return AVERROR_INVALIDDATA;
1280 ap = av_malloc(s->geotags[i].count);
1282 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1283 return AVERROR(ENOMEM);
1285 bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
1286 ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
1287 s->geotags[i].val = ap;
1293 ADD_METADATA(count, "artist", NULL);
1295 case TIFF_COPYRIGHT:
1296 ADD_METADATA(count, "copyright", NULL);
1299 ADD_METADATA(count, "date", NULL);
1301 case TIFF_DOCUMENT_NAME:
1302 ADD_METADATA(count, "document_name", NULL);
1304 case TIFF_HOST_COMPUTER:
1305 ADD_METADATA(count, "computer", NULL);
1307 case TIFF_IMAGE_DESCRIPTION:
1308 ADD_METADATA(count, "description", NULL);
1311 ADD_METADATA(count, "make", NULL);
1314 ADD_METADATA(count, "model", NULL);
1316 case TIFF_PAGE_NAME:
1317 ADD_METADATA(count, "page_name", NULL);
1319 case TIFF_PAGE_NUMBER:
1320 ADD_METADATA(count, "page_number", " / ");
1322 case TIFF_SOFTWARE_NAME:
1323 ADD_METADATA(count, "software", NULL);
1326 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1327 av_log(s->avctx, AV_LOG_ERROR,
1328 "Unknown or unsupported tag %d/0x%0X\n",
1330 return AVERROR_INVALIDDATA;
1335 av_log(s->avctx, AV_LOG_ERROR,
1336 "This format is not supported (bpp=%d, %d components)\n",
1339 return AVERROR_INVALIDDATA;
1341 bytestream2_seek(&s->gb, start, SEEK_SET);
1345 static int decode_frame(AVCodecContext *avctx,
1346 void *data, int *got_frame, AVPacket *avpkt)
1348 TiffContext *const s = avctx->priv_data;
1349 AVFrame *const p = data;
1350 ThreadFrame frame = { .f = data };
1352 int le, ret, plane, planes;
1353 int i, j, entries, stride;
1354 unsigned soff, ssize;
1356 GetByteContext stripsizes;
1357 GetByteContext stripdata;
1359 bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1361 // parse image header
1362 if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
1363 av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
1365 } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1366 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1367 return AVERROR_INVALIDDATA;
1370 // TIFF_BPP is not a required tag and defaults to 1
1372 s->bppcount = s->bpp = 1;
1373 s->photometric = TIFF_PHOTOMETRIC_NONE;
1374 s->compr = TIFF_RAW;
1380 // Reset these offsets so we can tell if they were set this frame
1381 s->stripsizesoff = s->strippos = 0;
1382 /* parse image file directory */
1383 bytestream2_seek(&s->gb, off, SEEK_SET);
1384 entries = ff_tget_short(&s->gb, le);
1385 if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1386 return AVERROR_INVALIDDATA;
1387 for (i = 0; i < entries; i++) {
1388 if ((ret = tiff_decode_tag(s, p)) < 0)
1392 if (s->sub_ifd && s->get_subimage) {
1394 if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1395 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1396 return AVERROR_INVALIDDATA;
1402 for (i = 0; i<s->geotag_count; i++) {
1403 const char *keyname = get_geokey_name(s->geotags[i].key);
1405 av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
1408 if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
1409 av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
1412 ret = av_dict_set(&p->metadata, keyname, s->geotags[i].val, 0);
1414 av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
1419 if (!s->strippos && !s->stripoff) {
1420 av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
1421 return AVERROR_INVALIDDATA;
1423 /* now we have the data and may start decoding */
1424 if ((ret = init_image(s, &frame)) < 0)
1427 if (s->strips == 1 && !s->stripsize) {
1428 av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
1429 s->stripsize = avpkt->size - s->stripoff;
1432 if (s->stripsizesoff) {
1433 if (s->stripsizesoff >= (unsigned)avpkt->size)
1434 return AVERROR_INVALIDDATA;
1435 bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
1436 avpkt->size - s->stripsizesoff);
1439 if (s->strippos >= (unsigned)avpkt->size)
1440 return AVERROR_INVALIDDATA;
1441 bytestream2_init(&stripdata, avpkt->data + s->strippos,
1442 avpkt->size - s->strippos);
1445 if (s->rps <= 0 || s->rps % s->subsampling[1]) {
1446 av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1447 return AVERROR_INVALIDDATA;
1450 planes = s->planar ? s->bppcount : 1;
1451 for (plane = 0; plane < planes; plane++) {
1452 int remaining = avpkt->size;
1454 stride = p->linesize[plane];
1455 dst = p->data[plane];
1456 for (i = 0; i < s->height; i += s->rps) {
1458 dst += s->rps * stride;
1459 if (s->stripsizesoff)
1460 ssize = ff_tget(&stripsizes, s->sstype, le);
1462 ssize = s->stripsize;
1465 soff = ff_tget(&stripdata, s->sot, le);
1469 if (soff > avpkt->size || ssize > avpkt->size - soff || ssize > remaining) {
1470 av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
1471 return AVERROR_INVALIDDATA;
1474 if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i,
1475 FFMIN(s->rps, s->height - i))) < 0) {
1476 if (avctx->err_recognition & AV_EF_EXPLODE)
1481 decoded_height = FFMIN(i, s->height);
1483 if (s->predictor == 2) {
1484 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1485 av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported");
1486 return AVERROR_PATCHWELCOME;
1488 dst = p->data[plane];
1491 soff = FFMAX(soff / s->bppcount, 1);
1492 ssize = s->width * soff;
1493 if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
1494 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
1495 s->avctx->pix_fmt == AV_PIX_FMT_GRAY16LE ||
1496 s->avctx->pix_fmt == AV_PIX_FMT_YA16LE ||
1497 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
1498 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
1499 for (i = 0; i < decoded_height; i++) {
1500 for (j = soff; j < ssize; j += 2)
1501 AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
1504 } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
1505 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
1506 s->avctx->pix_fmt == AV_PIX_FMT_GRAY16BE ||
1507 s->avctx->pix_fmt == AV_PIX_FMT_YA16BE ||
1508 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
1509 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
1510 for (i = 0; i < decoded_height; i++) {
1511 for (j = soff; j < ssize; j += 2)
1512 AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
1516 for (i = 0; i < decoded_height; i++) {
1517 for (j = soff; j < ssize; j++)
1518 dst[j] += dst[j - soff];
1524 if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) {
1525 int c = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255);
1526 dst = p->data[plane];
1527 for (i = 0; i < s->height; i++) {
1528 for (j = 0; j < stride; j++)
1529 dst[j] = c - dst[j];
1534 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
1535 s->avctx->pix_fmt == AV_PIX_FMT_RGB0) {
1536 dst = p->data[plane];
1537 for (i = 0; i < s->height; i++) {
1538 for (j = 0; j < s->width; j++) {
1539 int k = 255 - dst[4 * j + 3];
1540 int r = (255 - dst[4 * j ]) * k;
1541 int g = (255 - dst[4 * j + 1]) * k;
1542 int b = (255 - dst[4 * j + 2]) * k;
1543 dst[4 * j ] = r * 257 >> 16;
1544 dst[4 * j + 1] = g * 257 >> 16;
1545 dst[4 * j + 2] = b * 257 >> 16;
1546 dst[4 * j + 3] = 255;
1548 dst += p->linesize[plane];
1553 if (s->planar && s->bppcount > 2) {
1554 FFSWAP(uint8_t*, p->data[0], p->data[2]);
1555 FFSWAP(int, p->linesize[0], p->linesize[2]);
1556 FFSWAP(uint8_t*, p->data[0], p->data[1]);
1557 FFSWAP(int, p->linesize[0], p->linesize[1]);
1560 if (s->is_bayer && s->white_level && s->bpp == 16) {
1561 uint16_t *dst = (uint16_t *)p->data[0];
1562 for (i = 0; i < s->height; i++) {
1563 for (j = 0; j < s->width; j++)
1564 dst[j] = FFMIN((dst[j] / (float)s->white_level) * 65535, 65535);
1574 static av_cold int tiff_init(AVCodecContext *avctx)
1576 TiffContext *s = avctx->priv_data;
1581 s->subsampling[1] = 1;
1583 ff_lzw_decode_open(&s->lzw);
1585 return AVERROR(ENOMEM);
1586 ff_ccitt_unpack_init();
1591 static av_cold int tiff_end(AVCodecContext *avctx)
1593 TiffContext *const s = avctx->priv_data;
1597 ff_lzw_decode_close(&s->lzw);
1598 av_freep(&s->deinvert_buf);
1599 s->deinvert_buf_size = 0;
1600 av_freep(&s->yuv_line);
1601 s->yuv_line_size = 0;
1602 av_freep(&s->fax_buffer);
1603 s->fax_buffer_size = 0;
1607 #define OFFSET(x) offsetof(TiffContext, x)
1608 static const AVOption tiff_options[] = {
1609 { "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 },
1613 static const AVClass tiff_decoder_class = {
1614 .class_name = "TIFF decoder",
1615 .item_name = av_default_item_name,
1616 .option = tiff_options,
1617 .version = LIBAVUTIL_VERSION_INT,
1620 AVCodec ff_tiff_decoder = {
1622 .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
1623 .type = AVMEDIA_TYPE_VIDEO,
1624 .id = AV_CODEC_ID_TIFF,
1625 .priv_data_size = sizeof(TiffContext),
1628 .decode = decode_frame,
1629 .init_thread_copy = ONLY_IF_THREADS_ENABLED(tiff_init),
1630 .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
1631 .priv_class = &tiff_decoder_class,