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_yuv(TiffContext *s, AVFrame *p,
314 const uint8_t *src, int lnum)
317 int w = (s->width - 1) / s->subsampling[0] + 1;
318 uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
319 uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
320 if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
321 for (i = 0; i < w; i++) {
322 for (j = 0; j < s->subsampling[1]; j++)
323 for (k = 0; k < s->subsampling[0]; k++)
324 p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
325 FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++;
330 for (i = 0; i < w; i++) {
331 for (j = 0; j < s->subsampling[1]; j++)
332 for (k = 0; k < s->subsampling[0]; k++)
333 p->data[0][(lnum + j) * p->linesize[0] +
334 i * s->subsampling[0] + k] = *src++;
342 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
345 z_stream zstream = { 0 };
348 zstream.next_in = (uint8_t *)src;
349 zstream.avail_in = size;
350 zstream.next_out = dst;
351 zstream.avail_out = *len;
352 zret = inflateInit(&zstream);
354 av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
357 zret = inflate(&zstream, Z_SYNC_FLUSH);
358 inflateEnd(&zstream);
359 *len = zstream.total_out;
360 return zret == Z_STREAM_END ? Z_OK : zret;
363 static int tiff_unpack_zlib(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
364 const uint8_t *src, int size, int width, int lines,
365 int strip_start, int is_yuv)
368 unsigned long outlen;
370 outlen = width * lines;
371 zbuf = av_malloc(outlen);
373 return AVERROR(ENOMEM);
375 if ((ret = deinvert_buffer(s, src, size)) < 0) {
379 src = s->deinvert_buf;
381 ret = tiff_uncompress(zbuf, &outlen, src, size);
383 av_log(s->avctx, AV_LOG_ERROR,
384 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
385 (unsigned long)width * lines, ret);
387 return AVERROR_UNKNOWN;
390 for (line = 0; line < lines; line++) {
391 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
392 horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
394 memcpy(dst, src, width);
397 unpack_yuv(s, p, dst, strip_start + line);
398 line += s->subsampling[1] - 1;
409 static int tiff_uncompress_lzma(uint8_t *dst, uint64_t *len, const uint8_t *src,
412 lzma_stream stream = LZMA_STREAM_INIT;
415 stream.next_in = (uint8_t *)src;
416 stream.avail_in = size;
417 stream.next_out = dst;
418 stream.avail_out = *len;
419 ret = lzma_stream_decoder(&stream, UINT64_MAX, 0);
420 if (ret != LZMA_OK) {
421 av_log(NULL, AV_LOG_ERROR, "LZMA init error: %d\n", ret);
424 ret = lzma_code(&stream, LZMA_RUN);
426 *len = stream.total_out;
427 return ret == LZMA_STREAM_END ? LZMA_OK : ret;
430 static int tiff_unpack_lzma(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
431 const uint8_t *src, int size, int width, int lines,
432 int strip_start, int is_yuv)
434 uint64_t outlen = width * (uint64_t)lines;
436 uint8_t *buf = av_malloc(outlen);
438 return AVERROR(ENOMEM);
440 if ((ret = deinvert_buffer(s, src, size)) < 0) {
444 src = s->deinvert_buf;
446 ret = tiff_uncompress_lzma(buf, &outlen, src, size);
447 if (ret != LZMA_OK) {
448 av_log(s->avctx, AV_LOG_ERROR,
449 "Uncompressing failed (%"PRIu64" of %"PRIu64") with error %d\n", outlen,
450 (uint64_t)width * lines, ret);
452 return AVERROR_UNKNOWN;
455 for (line = 0; line < lines; line++) {
456 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
457 horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
459 memcpy(dst, src, width);
462 unpack_yuv(s, p, dst, strip_start + line);
463 line += s->subsampling[1] - 1;
473 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
474 const uint8_t *src, int size, int width, int lines)
480 av_fast_padded_malloc(&s->fax_buffer, &s->fax_buffer_size, size);
481 src2 = s->fax_buffer;
484 av_log(s->avctx, AV_LOG_ERROR,
485 "Error allocating temporary buffer\n");
486 return AVERROR(ENOMEM);
489 if (!s->fill_order) {
490 memcpy(src2, src, size);
492 for (i = 0; i < size; i++)
493 src2[i] = ff_reverse[src[i]];
495 memset(src2 + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
496 ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
497 s->compr, s->fax_opts);
498 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
499 for (line = 0; line < lines; line++) {
500 horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
506 static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
507 const uint8_t *src, int size, int strip_start, int lines)
510 int c, line, pixels, code, ret;
511 const uint8_t *ssrc = src;
512 int width = ((s->width * s->bpp) + 7) >> 3;
513 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(p->format);
514 int is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) &&
515 (desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
516 desc->nb_components >= 3;
519 width /= s->bppcount;
522 return AVERROR_INVALIDDATA;
525 int bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
526 s->subsampling[0] * s->subsampling[1] + 7) >> 3;
527 av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row);
528 if (s->yuv_line == NULL) {
529 av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
530 return AVERROR(ENOMEM);
535 width = (s->width - 1) / s->subsampling[0] + 1;
536 width = width * s->subsampling[0] * s->subsampling[1] + 2*width;
537 av_assert0(width <= bytes_per_row);
538 av_assert0(s->bpp == 24);
541 width = (s->bpp * s->width + 7) >> 3;
544 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
546 return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines,
547 strip_start, is_yuv);
549 av_log(s->avctx, AV_LOG_ERROR,
550 "zlib support not enabled, "
551 "deflate compression not supported\n");
552 return AVERROR(ENOSYS);
555 if (s->compr == TIFF_LZMA) {
557 return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
558 strip_start, is_yuv);
560 av_log(s->avctx, AV_LOG_ERROR,
561 "LZMA support not enabled\n");
562 return AVERROR(ENOSYS);
565 if (s->compr == TIFF_LZW) {
567 if ((ret = deinvert_buffer(s, src, size)) < 0)
569 ssrc = src = s->deinvert_buf;
571 if (size > 1 && !src[0] && (src[1]&1)) {
572 av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
574 if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
575 av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
578 for (line = 0; line < lines; line++) {
579 pixels = ff_lzw_decode(s->lzw, dst, width);
580 if (pixels < width) {
581 av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
583 return AVERROR_INVALIDDATA;
585 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
586 horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
588 unpack_yuv(s, p, dst, strip_start + line);
589 line += s->subsampling[1] - 1;
595 if (s->compr == TIFF_CCITT_RLE ||
596 s->compr == TIFF_G3 ||
597 s->compr == TIFF_G4) {
599 return AVERROR_INVALIDDATA;
601 return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
604 bytestream2_init(&s->gb, src, size);
605 bytestream2_init_writer(&pb, dst, is_yuv ? s->yuv_line_size : (stride * lines));
607 for (line = 0; line < lines; line++) {
608 if (src - ssrc > size) {
609 av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
610 return AVERROR_INVALIDDATA;
613 if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb))
615 bytestream2_seek_p(&pb, stride * line, SEEK_SET);
618 if (ssrc + size - src < width)
619 return AVERROR_INVALIDDATA;
621 if (!s->fill_order) {
622 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 || s->is_bayer),
623 dst, 1, src, 0, width, 0);
626 for (i = 0; i < width; i++)
627 dst[i] = ff_reverse[src[i]];
632 for (pixels = 0; pixels < width;) {
633 if (ssrc + size - src < 2) {
634 av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
635 return AVERROR_INVALIDDATA;
637 code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
640 if (pixels + code > width ||
641 ssrc + size - src < code) {
642 av_log(s->avctx, AV_LOG_ERROR,
643 "Copy went out of bounds\n");
644 return AVERROR_INVALIDDATA;
646 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
647 dst, 1, src, 0, code, pixels);
650 } else if (code != -128) { // -127..-1
652 if (pixels + code > width) {
653 av_log(s->avctx, AV_LOG_ERROR,
654 "Run went out of bounds\n");
655 return AVERROR_INVALIDDATA;
658 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
659 dst, 0, NULL, c, code, pixels);
665 for (i = 0; i < width; i++)
666 dst[i] = ff_reverse[dst[i]];
671 unpack_yuv(s, p, dst, strip_start + line);
672 line += s->subsampling[1] - 1;
679 static int init_image(TiffContext *s, ThreadFrame *frame)
682 int create_gray_palette = 0;
684 // make sure there is no aliasing in the following switch
685 if (s->bpp >= 100 || s->bppcount >= 10) {
686 av_log(s->avctx, AV_LOG_ERROR,
687 "Unsupported image parameters: bpp=%d, bppcount=%d\n",
688 s->bpp, s->bppcount);
689 return AVERROR_INVALIDDATA;
692 switch (s->planar * 1000 + s->bpp * 10 + s->bppcount + s->is_bayer * 10000) {
694 if (!s->palette_is_set) {
695 s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
700 s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
701 if (!s->palette_is_set) {
702 create_gray_palette = 1;
706 s->avctx->pix_fmt = s->palette_is_set ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_GRAY8;
709 switch (AV_RL32(s->pattern)) {
711 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB8;
714 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR8;
717 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG8;
720 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG8;
723 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
724 AV_RL32(s->pattern));
725 return AVERROR_PATCHWELCOME;
729 switch (AV_RL32(s->pattern)) {
731 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_RGGB16LE : AV_PIX_FMT_BAYER_RGGB16BE;
734 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_BGGR16LE : AV_PIX_FMT_BAYER_BGGR16BE;
737 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GBRG16LE : AV_PIX_FMT_BAYER_GBRG16BE;
740 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GRBG16LE : AV_PIX_FMT_BAYER_GRBG16BE;
743 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
744 AV_RL32(s->pattern));
745 return AVERROR_PATCHWELCOME;
749 switch (AV_RL32(s->pattern)) {
751 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_RGGB16LE : AV_PIX_FMT_BAYER_RGGB16BE;
754 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_BGGR16LE : AV_PIX_FMT_BAYER_BGGR16BE;
757 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GBRG16LE : AV_PIX_FMT_BAYER_GBRG16BE;
760 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GRBG16LE : AV_PIX_FMT_BAYER_GRBG16BE;
763 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
764 AV_RL32(s->pattern));
765 return AVERROR_PATCHWELCOME;
769 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
770 if (s->subsampling[0] == 1 && s->subsampling[1] == 1) {
771 s->avctx->pix_fmt = AV_PIX_FMT_YUV444P;
772 } else if (s->subsampling[0] == 2 && s->subsampling[1] == 1) {
773 s->avctx->pix_fmt = AV_PIX_FMT_YUV422P;
774 } else if (s->subsampling[0] == 4 && s->subsampling[1] == 1) {
775 s->avctx->pix_fmt = AV_PIX_FMT_YUV411P;
776 } else if (s->subsampling[0] == 1 && s->subsampling[1] == 2) {
777 s->avctx->pix_fmt = AV_PIX_FMT_YUV440P;
778 } else if (s->subsampling[0] == 2 && s->subsampling[1] == 2) {
779 s->avctx->pix_fmt = AV_PIX_FMT_YUV420P;
780 } else if (s->subsampling[0] == 4 && s->subsampling[1] == 4) {
781 s->avctx->pix_fmt = AV_PIX_FMT_YUV410P;
783 av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr subsampling\n");
784 return AVERROR_PATCHWELCOME;
787 s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
790 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
793 s->avctx->pix_fmt = AV_PIX_FMT_YA8;
796 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_YA16LE : AV_PIX_FMT_YA16BE;
799 s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
802 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
805 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
808 s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
811 s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
814 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE;
817 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE;
820 av_log(s->avctx, AV_LOG_ERROR,
821 "This format is not supported (bpp=%d, bppcount=%d)\n",
822 s->bpp, s->bppcount);
823 return AVERROR_INVALIDDATA;
826 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
827 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
828 if((desc->flags & AV_PIX_FMT_FLAG_RGB) ||
829 !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) ||
830 desc->nb_components < 3) {
831 av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr variant\n");
832 return AVERROR_INVALIDDATA;
836 if (s->width != s->avctx->width || s->height != s->avctx->height) {
837 ret = ff_set_dimensions(s->avctx, s->width, s->height);
841 if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
843 if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
844 if (!create_gray_palette)
845 memcpy(frame->f->data[1], s->palette, sizeof(s->palette));
847 /* make default grayscale pal */
849 uint32_t *pal = (uint32_t *)frame->f->data[1];
850 for (i = 0; i < 1<<s->bpp; i++)
851 pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
857 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
859 int offset = tag == TIFF_YRES ? 2 : 0;
860 s->res[offset++] = num;
861 s->res[offset] = den;
862 if (s->res[0] && s->res[1] && s->res[2] && s->res[3]) {
863 uint64_t num = s->res[2] * (uint64_t)s->res[1];
864 uint64_t den = s->res[0] * (uint64_t)s->res[3];
865 if (num > INT64_MAX || den > INT64_MAX) {
869 av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den,
870 num, den, INT32_MAX);
871 if (!s->avctx->sample_aspect_ratio.den)
872 s->avctx->sample_aspect_ratio = (AVRational) {0, 1};
876 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
878 unsigned tag, type, count, off, value = 0, value2 = 0;
884 ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
889 off = bytestream2_tell(&s->gb);
895 value = ff_tget(&s->gb, type, s->le);
898 value = ff_tget(&s->gb, TIFF_LONG, s->le);
899 value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
919 av_log(s->avctx, AV_LOG_ERROR,
920 "This format is not supported (bpp=%d, %d components)\n",
922 return AVERROR_INVALIDDATA;
933 if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
934 return AVERROR_INVALIDDATA;
935 for (i = 0; i < count; i++)
936 s->bpp += ff_tget(&s->gb, type, s->le);
943 case TIFF_SAMPLES_PER_PIXEL:
945 av_log(s->avctx, AV_LOG_ERROR,
946 "Samples per pixel requires a single value, many provided\n");
947 return AVERROR_INVALIDDATA;
950 av_log(s->avctx, AV_LOG_ERROR,
951 "Samples per pixel %d is too large\n", value);
952 return AVERROR_INVALIDDATA;
954 if (s->bppcount == 1)
960 av_log(s->avctx, AV_LOG_DEBUG, "compression: %d\n", s->compr);
973 case TIFF_ADOBE_DEFLATE:
977 av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
978 return AVERROR(ENOSYS);
982 avpriv_report_missing_feature(s->avctx, "JPEG compression");
983 return AVERROR_PATCHWELCOME;
988 av_log(s->avctx, AV_LOG_ERROR, "LZMA not compiled in\n");
989 return AVERROR(ENOSYS);
992 av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
994 return AVERROR_INVALIDDATA;
997 case TIFF_ROWSPERSTRIP:
998 if (!value || (type == TIFF_LONG && value == UINT_MAX))
1000 s->rps = FFMIN(value, s->height);
1002 case TIFF_STRIP_OFFS:
1004 if (value > INT_MAX) {
1005 av_log(s->avctx, AV_LOG_ERROR,
1006 "strippos %u too large\n", value);
1007 return AVERROR_INVALIDDATA;
1010 s->stripoff = value;
1018 case TIFF_STRIP_SIZE:
1020 if (value > INT_MAX) {
1021 av_log(s->avctx, AV_LOG_ERROR,
1022 "stripsize %u too large\n", value);
1023 return AVERROR_INVALIDDATA;
1025 s->stripsizesoff = 0;
1026 s->stripsize = value;
1029 s->stripsizesoff = off;
1036 set_sar(s, tag, value, value2);
1038 case TIFF_TILE_BYTE_COUNTS:
1039 case TIFF_TILE_LENGTH:
1040 case TIFF_TILE_OFFSETS:
1041 case TIFF_TILE_WIDTH:
1042 av_log(s->avctx, AV_LOG_ERROR, "Tiled images are not supported\n");
1043 return AVERROR_PATCHWELCOME;
1045 case TIFF_PREDICTOR:
1046 s->predictor = value;
1051 case TIFF_WHITE_LEVEL:
1052 s->white_level = value;
1054 case TIFF_CFA_PATTERN_DIM:
1055 if (count != 2 || (ff_tget(&s->gb, type, s->le) != 2 &&
1056 ff_tget(&s->gb, type, s->le) != 2)) {
1057 av_log(s->avctx, AV_LOG_ERROR, "CFA Pattern dimensions are not 2x2\n");
1058 return AVERROR_INVALIDDATA;
1061 case TIFF_CFA_PATTERN:
1063 s->pattern[0] = ff_tget(&s->gb, type, s->le);
1064 s->pattern[1] = ff_tget(&s->gb, type, s->le);
1065 s->pattern[2] = ff_tget(&s->gb, type, s->le);
1066 s->pattern[3] = ff_tget(&s->gb, type, s->le);
1068 case TIFF_PHOTOMETRIC:
1070 case TIFF_PHOTOMETRIC_WHITE_IS_ZERO:
1071 case TIFF_PHOTOMETRIC_BLACK_IS_ZERO:
1072 case TIFF_PHOTOMETRIC_RGB:
1073 case TIFF_PHOTOMETRIC_PALETTE:
1074 case TIFF_PHOTOMETRIC_YCBCR:
1075 case TIFF_PHOTOMETRIC_CFA:
1076 s->photometric = value;
1078 case TIFF_PHOTOMETRIC_ALPHA_MASK:
1079 case TIFF_PHOTOMETRIC_SEPARATED:
1080 case TIFF_PHOTOMETRIC_CIE_LAB:
1081 case TIFF_PHOTOMETRIC_ICC_LAB:
1082 case TIFF_PHOTOMETRIC_ITU_LAB:
1083 case TIFF_PHOTOMETRIC_LOG_L:
1084 case TIFF_PHOTOMETRIC_LOG_LUV:
1085 case TIFF_PHOTOMETRIC_LINEAR_RAW:
1086 avpriv_report_missing_feature(s->avctx,
1087 "PhotometricInterpretation 0x%04X",
1089 return AVERROR_PATCHWELCOME;
1091 av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
1092 "unknown\n", value);
1093 return AVERROR_INVALIDDATA;
1096 case TIFF_FILL_ORDER:
1097 if (value < 1 || value > 2) {
1098 av_log(s->avctx, AV_LOG_ERROR,
1099 "Unknown FillOrder value %d, trying default one\n", value);
1102 s->fill_order = value - 1;
1105 GetByteContext pal_gb[3];
1106 off = type_sizes[type];
1107 if (count / 3 > 256 ||
1108 bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
1109 return AVERROR_INVALIDDATA;
1111 pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
1112 bytestream2_skip(&pal_gb[1], count / 3 * off);
1113 bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
1115 off = (type_sizes[type] - 1) << 3;
1117 av_log(s->avctx, AV_LOG_ERROR, "palette shift %d is out of range\n", off);
1118 return AVERROR_INVALIDDATA;
1121 for (i = 0; i < count / 3; i++) {
1122 uint32_t p = 0xFF000000;
1123 p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
1124 p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
1125 p |= ff_tget(&pal_gb[2], type, s->le) >> off;
1128 s->palette_is_set = 1;
1132 s->planar = value == 2;
1134 case TIFF_YCBCR_SUBSAMPLING:
1136 av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n");
1137 return AVERROR_INVALIDDATA;
1139 for (i = 0; i < count; i++) {
1140 s->subsampling[i] = ff_tget(&s->gb, type, s->le);
1141 if (s->subsampling[i] <= 0) {
1142 av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]);
1143 s->subsampling[i] = 1;
1144 return AVERROR_INVALIDDATA;
1148 case TIFF_T4OPTIONS:
1149 if (s->compr == TIFF_G3)
1150 s->fax_opts = value;
1152 case TIFF_T6OPTIONS:
1153 if (s->compr == TIFF_G4)
1154 s->fax_opts = value;
1156 #define ADD_METADATA(count, name, sep)\
1157 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
1158 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
1161 case TIFF_MODEL_PIXEL_SCALE:
1162 ADD_METADATA(count, "ModelPixelScaleTag", NULL);
1164 case TIFF_MODEL_TRANSFORMATION:
1165 ADD_METADATA(count, "ModelTransformationTag", NULL);
1167 case TIFF_MODEL_TIEPOINT:
1168 ADD_METADATA(count, "ModelTiepointTag", NULL);
1170 case TIFF_GEO_KEY_DIRECTORY:
1171 if (s->geotag_count) {
1172 avpriv_request_sample(s->avctx, "Multiple geo key directories\n");
1173 return AVERROR_INVALIDDATA;
1175 ADD_METADATA(1, "GeoTIFF_Version", NULL);
1176 ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
1177 s->geotag_count = ff_tget_short(&s->gb, s->le);
1178 if (s->geotag_count > count / 4 - 1) {
1179 s->geotag_count = count / 4 - 1;
1180 av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
1182 if ( bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4
1183 || s->geotag_count == 0) {
1184 s->geotag_count = 0;
1187 s->geotags = av_mallocz_array(s->geotag_count, sizeof(TiffGeoTag));
1189 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1190 s->geotag_count = 0;
1193 for (i = 0; i < s->geotag_count; i++) {
1194 s->geotags[i].key = ff_tget_short(&s->gb, s->le);
1195 s->geotags[i].type = ff_tget_short(&s->gb, s->le);
1196 s->geotags[i].count = ff_tget_short(&s->gb, s->le);
1198 if (!s->geotags[i].type)
1199 s->geotags[i].val = get_geokey_val(s->geotags[i].key, ff_tget_short(&s->gb, s->le));
1201 s->geotags[i].offset = ff_tget_short(&s->gb, s->le);
1204 case TIFF_GEO_DOUBLE_PARAMS:
1205 if (count >= INT_MAX / sizeof(int64_t))
1206 return AVERROR_INVALIDDATA;
1207 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
1208 return AVERROR_INVALIDDATA;
1209 dp = av_malloc_array(count, sizeof(double));
1211 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1214 for (i = 0; i < count; i++)
1215 dp[i] = ff_tget_double(&s->gb, s->le);
1216 for (i = 0; i < s->geotag_count; i++) {
1217 if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
1218 if (s->geotags[i].count == 0
1219 || s->geotags[i].offset + s->geotags[i].count > count) {
1220 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1221 } else if (s->geotags[i].val) {
1222 av_log(s->avctx, AV_LOG_WARNING, "Duplicate GeoTIFF key %d\n", s->geotags[i].key);
1224 char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
1226 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1228 return AVERROR(ENOMEM);
1230 s->geotags[i].val = ap;
1236 case TIFF_GEO_ASCII_PARAMS:
1237 pos = bytestream2_tell(&s->gb);
1238 for (i = 0; i < s->geotag_count; i++) {
1239 if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
1240 if (s->geotags[i].count == 0
1241 || s->geotags[i].offset + s->geotags[i].count > count) {
1242 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1246 bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
1247 if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
1248 return AVERROR_INVALIDDATA;
1249 if (s->geotags[i].val)
1250 return AVERROR_INVALIDDATA;
1251 ap = av_malloc(s->geotags[i].count);
1253 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1254 return AVERROR(ENOMEM);
1256 bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
1257 ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
1258 s->geotags[i].val = ap;
1264 ADD_METADATA(count, "artist", NULL);
1266 case TIFF_COPYRIGHT:
1267 ADD_METADATA(count, "copyright", NULL);
1270 ADD_METADATA(count, "date", NULL);
1272 case TIFF_DOCUMENT_NAME:
1273 ADD_METADATA(count, "document_name", NULL);
1275 case TIFF_HOST_COMPUTER:
1276 ADD_METADATA(count, "computer", NULL);
1278 case TIFF_IMAGE_DESCRIPTION:
1279 ADD_METADATA(count, "description", NULL);
1282 ADD_METADATA(count, "make", NULL);
1285 ADD_METADATA(count, "model", NULL);
1287 case TIFF_PAGE_NAME:
1288 ADD_METADATA(count, "page_name", NULL);
1290 case TIFF_PAGE_NUMBER:
1291 ADD_METADATA(count, "page_number", " / ");
1293 case TIFF_SOFTWARE_NAME:
1294 ADD_METADATA(count, "software", NULL);
1297 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1298 av_log(s->avctx, AV_LOG_ERROR,
1299 "Unknown or unsupported tag %d/0x%0X\n",
1301 return AVERROR_INVALIDDATA;
1306 av_log(s->avctx, AV_LOG_ERROR,
1307 "This format is not supported (bpp=%d, %d components)\n",
1310 return AVERROR_INVALIDDATA;
1312 bytestream2_seek(&s->gb, start, SEEK_SET);
1316 static int decode_frame(AVCodecContext *avctx,
1317 void *data, int *got_frame, AVPacket *avpkt)
1319 TiffContext *const s = avctx->priv_data;
1320 AVFrame *const p = data;
1321 ThreadFrame frame = { .f = data };
1323 int le, ret, plane, planes;
1324 int i, j, entries, stride;
1325 unsigned soff, ssize;
1327 GetByteContext stripsizes;
1328 GetByteContext stripdata;
1330 bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1332 // parse image header
1333 if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
1334 av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
1336 } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1337 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1338 return AVERROR_INVALIDDATA;
1341 // TIFF_BPP is not a required tag and defaults to 1
1343 s->bppcount = s->bpp = 1;
1344 s->photometric = TIFF_PHOTOMETRIC_NONE;
1345 s->compr = TIFF_RAW;
1351 // Reset these offsets so we can tell if they were set this frame
1352 s->stripsizesoff = s->strippos = 0;
1353 /* parse image file directory */
1354 bytestream2_seek(&s->gb, off, SEEK_SET);
1355 entries = ff_tget_short(&s->gb, le);
1356 if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1357 return AVERROR_INVALIDDATA;
1358 for (i = 0; i < entries; i++) {
1359 if ((ret = tiff_decode_tag(s, p)) < 0)
1363 if (s->sub_ifd && s->get_subimage) {
1365 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;
1373 for (i = 0; i<s->geotag_count; i++) {
1374 const char *keyname = get_geokey_name(s->geotags[i].key);
1376 av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
1379 if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
1380 av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
1383 ret = av_dict_set(&p->metadata, keyname, s->geotags[i].val, 0);
1385 av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
1390 if (!s->strippos && !s->stripoff) {
1391 av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
1392 return AVERROR_INVALIDDATA;
1394 /* now we have the data and may start decoding */
1395 if ((ret = init_image(s, &frame)) < 0)
1398 if (s->strips == 1 && !s->stripsize) {
1399 av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
1400 s->stripsize = avpkt->size - s->stripoff;
1403 if (s->stripsizesoff) {
1404 if (s->stripsizesoff >= (unsigned)avpkt->size)
1405 return AVERROR_INVALIDDATA;
1406 bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
1407 avpkt->size - s->stripsizesoff);
1410 if (s->strippos >= (unsigned)avpkt->size)
1411 return AVERROR_INVALIDDATA;
1412 bytestream2_init(&stripdata, avpkt->data + s->strippos,
1413 avpkt->size - s->strippos);
1416 if (s->rps <= 0 || s->rps % s->subsampling[1]) {
1417 av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1418 return AVERROR_INVALIDDATA;
1421 planes = s->planar ? s->bppcount : 1;
1422 for (plane = 0; plane < planes; plane++) {
1423 int remaining = avpkt->size;
1425 stride = p->linesize[plane];
1426 dst = p->data[plane];
1427 for (i = 0; i < s->height; i += s->rps) {
1429 dst += s->rps * stride;
1430 if (s->stripsizesoff)
1431 ssize = ff_tget(&stripsizes, s->sstype, le);
1433 ssize = s->stripsize;
1436 soff = ff_tget(&stripdata, s->sot, le);
1440 if (soff > avpkt->size || ssize > avpkt->size - soff || ssize > remaining) {
1441 av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
1442 return AVERROR_INVALIDDATA;
1445 if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i,
1446 FFMIN(s->rps, s->height - i))) < 0) {
1447 if (avctx->err_recognition & AV_EF_EXPLODE)
1452 decoded_height = FFMIN(i, s->height);
1454 if (s->predictor == 2) {
1455 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1456 av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported");
1457 return AVERROR_PATCHWELCOME;
1459 dst = p->data[plane];
1462 soff = FFMAX(soff / s->bppcount, 1);
1463 ssize = s->width * soff;
1464 if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
1465 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
1466 s->avctx->pix_fmt == AV_PIX_FMT_GRAY16LE ||
1467 s->avctx->pix_fmt == AV_PIX_FMT_YA16LE ||
1468 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
1469 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
1470 for (i = 0; i < decoded_height; i++) {
1471 for (j = soff; j < ssize; j += 2)
1472 AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
1475 } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
1476 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
1477 s->avctx->pix_fmt == AV_PIX_FMT_GRAY16BE ||
1478 s->avctx->pix_fmt == AV_PIX_FMT_YA16BE ||
1479 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
1480 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
1481 for (i = 0; i < decoded_height; i++) {
1482 for (j = soff; j < ssize; j += 2)
1483 AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
1487 for (i = 0; i < decoded_height; i++) {
1488 for (j = soff; j < ssize; j++)
1489 dst[j] += dst[j - soff];
1495 if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) {
1496 int c = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255);
1497 dst = p->data[plane];
1498 for (i = 0; i < s->height; i++) {
1499 for (j = 0; j < stride; j++)
1500 dst[j] = c - dst[j];
1506 if (s->planar && s->bppcount > 2) {
1507 FFSWAP(uint8_t*, p->data[0], p->data[2]);
1508 FFSWAP(int, p->linesize[0], p->linesize[2]);
1509 FFSWAP(uint8_t*, p->data[0], p->data[1]);
1510 FFSWAP(int, p->linesize[0], p->linesize[1]);
1513 if (s->is_bayer && s->white_level && s->bpp == 16) {
1514 uint16_t *dst = (uint16_t *)p->data[0];
1515 for (i = 0; i < s->height; i++) {
1516 for (j = 0; j < s->width; j++)
1517 dst[j] = FFMIN((dst[j] / (float)s->white_level) * 65535, 65535);
1527 static av_cold int tiff_init(AVCodecContext *avctx)
1529 TiffContext *s = avctx->priv_data;
1534 s->subsampling[1] = 1;
1536 ff_lzw_decode_open(&s->lzw);
1538 return AVERROR(ENOMEM);
1539 ff_ccitt_unpack_init();
1544 static av_cold int tiff_end(AVCodecContext *avctx)
1546 TiffContext *const s = avctx->priv_data;
1550 ff_lzw_decode_close(&s->lzw);
1551 av_freep(&s->deinvert_buf);
1552 s->deinvert_buf_size = 0;
1553 av_freep(&s->fax_buffer);
1554 s->fax_buffer_size = 0;
1558 #define OFFSET(x) offsetof(TiffContext, x)
1559 static const AVOption tiff_options[] = {
1560 { "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 },
1564 static const AVClass tiff_decoder_class = {
1565 .class_name = "TIFF decoder",
1566 .item_name = av_default_item_name,
1567 .option = tiff_options,
1568 .version = LIBAVUTIL_VERSION_INT,
1571 AVCodec ff_tiff_decoder = {
1573 .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
1574 .type = AVMEDIA_TYPE_VIDEO,
1575 .id = AV_CODEC_ID_TIFF,
1576 .priv_data_size = sizeof(TiffContext),
1579 .decode = decode_frame,
1580 .init_thread_copy = ONLY_IF_THREADS_ENABLED(tiff_init),
1581 .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
1582 .priv_class = &tiff_decoder_class,