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 unsigned int bpp, bppcount;
62 uint32_t palette[256];
66 enum TiffPhotometric photometric;
81 int strips, rps, sstype;
83 int stripsizesoff, stripsize, stripoff, strippos;
86 uint8_t *deinvert_buf;
87 int deinvert_buf_size;
89 unsigned int yuv_line_size;
91 unsigned int fax_buffer_size;
97 static void free_geotags(TiffContext *const s)
100 for (i = 0; i < s->geotag_count; i++) {
101 if (s->geotags[i].val)
102 av_freep(&s->geotags[i].val);
104 av_freep(&s->geotags);
108 #define RET_GEOKEY(TYPE, array, element)\
109 if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
110 key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_name_type_map))\
111 return ff_tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].element;
113 static const char *get_geokey_name(int key)
115 RET_GEOKEY(VERT, vert, name);
116 RET_GEOKEY(PROJ, proj, name);
117 RET_GEOKEY(GEOG, geog, name);
118 RET_GEOKEY(CONF, conf, name);
123 static int get_geokey_type(int key)
125 RET_GEOKEY(VERT, vert, type);
126 RET_GEOKEY(PROJ, proj, type);
127 RET_GEOKEY(GEOG, geog, type);
128 RET_GEOKEY(CONF, conf, type);
130 return AVERROR_INVALIDDATA;
133 static int cmp_id_key(const void *id, const void *k)
135 return *(const int*)id - ((const TiffGeoTagKeyName*)k)->key;
138 static const char *search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
140 TiffGeoTagKeyName *r = bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key);
147 static char *get_geokey_val(int key, int val)
151 if (val == TIFF_GEO_KEY_UNDEFINED)
152 return av_strdup("undefined");
153 if (val == TIFF_GEO_KEY_USER_DEFINED)
154 return av_strdup("User-Defined");
156 #define RET_GEOKEY_VAL(TYPE, array)\
157 if (val >= TIFF_##TYPE##_OFFSET &&\
158 val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_codes))\
159 return av_strdup(ff_tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET]);
162 case TIFF_GT_MODEL_TYPE_GEOKEY:
163 RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
165 case TIFF_GT_RASTER_TYPE_GEOKEY:
166 RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
168 case TIFF_GEOG_LINEAR_UNITS_GEOKEY:
169 case TIFF_PROJ_LINEAR_UNITS_GEOKEY:
170 case TIFF_VERTICAL_UNITS_GEOKEY:
171 RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
173 case TIFF_GEOG_ANGULAR_UNITS_GEOKEY:
174 case TIFF_GEOG_AZIMUTH_UNITS_GEOKEY:
175 RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
177 case TIFF_GEOGRAPHIC_TYPE_GEOKEY:
178 RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
179 RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
181 case TIFF_GEOG_GEODETIC_DATUM_GEOKEY:
182 RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
183 RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
185 case TIFF_GEOG_ELLIPSOID_GEOKEY:
186 RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
188 case TIFF_GEOG_PRIME_MERIDIAN_GEOKEY:
189 RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
191 case TIFF_PROJECTED_CS_TYPE_GEOKEY:
192 ap = av_strdup(search_keyval(ff_tiff_proj_cs_type_codes, FF_ARRAY_ELEMS(ff_tiff_proj_cs_type_codes), val));
195 case TIFF_PROJECTION_GEOKEY:
196 ap = av_strdup(search_keyval(ff_tiff_projection_codes, FF_ARRAY_ELEMS(ff_tiff_projection_codes), val));
199 case TIFF_PROJ_COORD_TRANS_GEOKEY:
200 RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
202 case TIFF_VERTICAL_CS_TYPE_GEOKEY:
203 RET_GEOKEY_VAL(VERT_CS, vert_cs);
204 RET_GEOKEY_VAL(ORTHO_VERT_CS, ortho_vert_cs);
211 snprintf(ap, 14, "Unknown-%d", val);
215 static char *doubles2str(double *dp, int count, const char *sep)
219 uint64_t component_len;
220 if (!sep) sep = ", ";
221 component_len = 24LL + strlen(sep);
222 if (count >= (INT_MAX - 1)/component_len)
224 ap = av_malloc(component_len * count + 1);
229 for (i = 0; i < count; i++) {
230 unsigned l = snprintf(ap, component_len, "%.15g%s", dp[i], sep);
231 if(l >= component_len) {
237 ap0[strlen(ap0) - strlen(sep)] = '\0';
241 static int add_metadata(int count, int type,
242 const char *name, const char *sep, TiffContext *s, AVFrame *frame)
245 case TIFF_DOUBLE: return ff_tadd_doubles_metadata(count, name, sep, &s->gb, s->le, &frame->metadata);
246 case TIFF_SHORT : return ff_tadd_shorts_metadata(count, name, sep, &s->gb, s->le, 0, &frame->metadata);
247 case TIFF_STRING: return ff_tadd_string_metadata(count, name, &s->gb, s->le, &frame->metadata);
248 default : return AVERROR_INVALIDDATA;
252 static void av_always_inline horizontal_fill(TiffContext *s,
253 unsigned int bpp, uint8_t* dst,
254 int usePtr, const uint8_t *src,
255 uint8_t c, int width, int offset)
259 while (--width >= 0) {
260 dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
261 dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
262 dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
263 dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
264 dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
265 dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
266 dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
267 dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
271 while (--width >= 0) {
272 dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
273 dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
274 dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
275 dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
279 while (--width >= 0) {
280 dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
281 dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
285 uint16_t *dst16 = (uint16_t *)dst;
287 init_get_bits8(&gb, src, width);
288 for (int i = 0; i < s->width; i++) {
289 dst16[i] = get_bits(&gb, 12) << 4;
295 memcpy(dst + offset, src, width);
297 memset(dst + offset, c, width);
302 static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
306 av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
307 if (!s->deinvert_buf)
308 return AVERROR(ENOMEM);
309 for (i = 0; i < size; i++)
310 s->deinvert_buf[i] = ff_reverse[src[i]];
315 static void unpack_gray(TiffContext *s, AVFrame *p,
316 const uint8_t *src, int lnum, int width, int bpp)
319 uint16_t *dst = (uint16_t *)(p->data[0] + lnum * p->linesize[0]);
321 init_get_bits8(&gb, src, width);
323 for (int i = 0; i < s->width; i++) {
324 dst[i] = get_bits(&gb, bpp);
328 static void unpack_yuv(TiffContext *s, AVFrame *p,
329 const uint8_t *src, int lnum)
332 int w = (s->width - 1) / s->subsampling[0] + 1;
333 uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
334 uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
335 if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
336 for (i = 0; i < w; i++) {
337 for (j = 0; j < s->subsampling[1]; j++)
338 for (k = 0; k < s->subsampling[0]; k++)
339 p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
340 FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++;
345 for (i = 0; i < w; i++) {
346 for (j = 0; j < s->subsampling[1]; j++)
347 for (k = 0; k < s->subsampling[0]; k++)
348 p->data[0][(lnum + j) * p->linesize[0] +
349 i * s->subsampling[0] + k] = *src++;
357 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
360 z_stream zstream = { 0 };
363 zstream.next_in = (uint8_t *)src;
364 zstream.avail_in = size;
365 zstream.next_out = dst;
366 zstream.avail_out = *len;
367 zret = inflateInit(&zstream);
369 av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
372 zret = inflate(&zstream, Z_SYNC_FLUSH);
373 inflateEnd(&zstream);
374 *len = zstream.total_out;
375 return zret == Z_STREAM_END ? Z_OK : zret;
378 static int tiff_unpack_zlib(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
379 const uint8_t *src, int size, int width, int lines,
380 int strip_start, int is_yuv)
383 unsigned long outlen;
385 outlen = width * lines;
386 zbuf = av_malloc(outlen);
388 return AVERROR(ENOMEM);
390 if ((ret = deinvert_buffer(s, src, size)) < 0) {
394 src = s->deinvert_buf;
396 ret = tiff_uncompress(zbuf, &outlen, src, size);
398 av_log(s->avctx, AV_LOG_ERROR,
399 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
400 (unsigned long)width * lines, ret);
402 return AVERROR_UNKNOWN;
405 for (line = 0; line < lines; line++) {
406 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
407 horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
409 memcpy(dst, src, width);
412 unpack_yuv(s, p, dst, strip_start + line);
413 line += s->subsampling[1] - 1;
424 static int tiff_uncompress_lzma(uint8_t *dst, uint64_t *len, const uint8_t *src,
427 lzma_stream stream = LZMA_STREAM_INIT;
430 stream.next_in = (uint8_t *)src;
431 stream.avail_in = size;
432 stream.next_out = dst;
433 stream.avail_out = *len;
434 ret = lzma_stream_decoder(&stream, UINT64_MAX, 0);
435 if (ret != LZMA_OK) {
436 av_log(NULL, AV_LOG_ERROR, "LZMA init error: %d\n", ret);
439 ret = lzma_code(&stream, LZMA_RUN);
441 *len = stream.total_out;
442 return ret == LZMA_STREAM_END ? LZMA_OK : ret;
445 static int tiff_unpack_lzma(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
446 const uint8_t *src, int size, int width, int lines,
447 int strip_start, int is_yuv)
449 uint64_t outlen = width * (uint64_t)lines;
451 uint8_t *buf = av_malloc(outlen);
453 return AVERROR(ENOMEM);
455 if ((ret = deinvert_buffer(s, src, size)) < 0) {
459 src = s->deinvert_buf;
461 ret = tiff_uncompress_lzma(buf, &outlen, src, size);
462 if (ret != LZMA_OK) {
463 av_log(s->avctx, AV_LOG_ERROR,
464 "Uncompressing failed (%"PRIu64" of %"PRIu64") with error %d\n", outlen,
465 (uint64_t)width * lines, ret);
467 return AVERROR_UNKNOWN;
470 for (line = 0; line < lines; line++) {
471 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
472 horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
474 memcpy(dst, src, width);
477 unpack_yuv(s, p, dst, strip_start + line);
478 line += s->subsampling[1] - 1;
488 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
489 const uint8_t *src, int size, int width, int lines)
495 av_fast_padded_malloc(&s->fax_buffer, &s->fax_buffer_size, size);
496 src2 = s->fax_buffer;
499 av_log(s->avctx, AV_LOG_ERROR,
500 "Error allocating temporary buffer\n");
501 return AVERROR(ENOMEM);
504 if (!s->fill_order) {
505 memcpy(src2, src, size);
507 for (i = 0; i < size; i++)
508 src2[i] = ff_reverse[src[i]];
510 memset(src2 + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
511 ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
512 s->compr, s->fax_opts);
513 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
514 for (line = 0; line < lines; line++) {
515 horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
521 static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
522 const uint8_t *src, int size, int strip_start, int lines)
525 int c, line, pixels, code, ret;
526 const uint8_t *ssrc = src;
527 int width = ((s->width * s->bpp) + 7) >> 3;
528 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(p->format);
529 int is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) &&
530 (desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
531 desc->nb_components >= 3;
534 width /= s->bppcount;
537 return AVERROR_INVALIDDATA;
540 int bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
541 s->subsampling[0] * s->subsampling[1] + 7) >> 3;
542 av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row);
543 if (s->yuv_line == NULL) {
544 av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
545 return AVERROR(ENOMEM);
550 width = (s->width - 1) / s->subsampling[0] + 1;
551 width = width * s->subsampling[0] * s->subsampling[1] + 2*width;
552 av_assert0(width <= bytes_per_row);
553 av_assert0(s->bpp == 24);
556 width = (s->bpp * s->width + 7) >> 3;
558 if (p->format == AV_PIX_FMT_GRAY12) {
559 av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, width);
560 if (s->yuv_line == NULL) {
561 av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
562 return AVERROR(ENOMEM);
568 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
570 return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines,
571 strip_start, is_yuv);
573 av_log(s->avctx, AV_LOG_ERROR,
574 "zlib support not enabled, "
575 "deflate compression not supported\n");
576 return AVERROR(ENOSYS);
579 if (s->compr == TIFF_LZMA) {
581 return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
582 strip_start, is_yuv);
584 av_log(s->avctx, AV_LOG_ERROR,
585 "LZMA support not enabled\n");
586 return AVERROR(ENOSYS);
589 if (s->compr == TIFF_LZW) {
591 if ((ret = deinvert_buffer(s, src, size)) < 0)
593 ssrc = src = s->deinvert_buf;
595 if (size > 1 && !src[0] && (src[1]&1)) {
596 av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
598 if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
599 av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
602 for (line = 0; line < lines; line++) {
603 pixels = ff_lzw_decode(s->lzw, dst, width);
604 if (pixels < width) {
605 av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
607 return AVERROR_INVALIDDATA;
609 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
610 horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
612 unpack_yuv(s, p, dst, strip_start + line);
613 line += s->subsampling[1] - 1;
614 } else if (p->format == AV_PIX_FMT_GRAY12) {
615 unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
621 if (s->compr == TIFF_CCITT_RLE ||
622 s->compr == TIFF_G3 ||
623 s->compr == TIFF_G4) {
624 if (is_yuv || p->format == AV_PIX_FMT_GRAY12)
625 return AVERROR_INVALIDDATA;
627 return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
630 bytestream2_init(&s->gb, src, size);
631 bytestream2_init_writer(&pb, dst, is_yuv ? s->yuv_line_size : (stride * lines));
633 for (line = 0; line < lines; line++) {
634 if (src - ssrc > size) {
635 av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
636 return AVERROR_INVALIDDATA;
639 if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb))
641 bytestream2_seek_p(&pb, stride * line, SEEK_SET);
644 if (ssrc + size - src < width)
645 return AVERROR_INVALIDDATA;
647 if (!s->fill_order) {
648 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 || s->is_bayer),
649 dst, 1, src, 0, width, 0);
652 for (i = 0; i < width; i++)
653 dst[i] = ff_reverse[src[i]];
658 for (pixels = 0; pixels < width;) {
659 if (ssrc + size - src < 2) {
660 av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
661 return AVERROR_INVALIDDATA;
663 code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
666 if (pixels + code > width ||
667 ssrc + size - src < code) {
668 av_log(s->avctx, AV_LOG_ERROR,
669 "Copy went out of bounds\n");
670 return AVERROR_INVALIDDATA;
672 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
673 dst, 1, src, 0, code, pixels);
676 } else if (code != -128) { // -127..-1
678 if (pixels + code > width) {
679 av_log(s->avctx, AV_LOG_ERROR,
680 "Run went out of bounds\n");
681 return AVERROR_INVALIDDATA;
684 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
685 dst, 0, NULL, c, code, pixels);
691 for (i = 0; i < width; i++)
692 dst[i] = ff_reverse[dst[i]];
697 unpack_yuv(s, p, dst, strip_start + line);
698 line += s->subsampling[1] - 1;
699 } else if (p->format == AV_PIX_FMT_GRAY12) {
700 unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
707 static int init_image(TiffContext *s, ThreadFrame *frame)
710 int create_gray_palette = 0;
712 // make sure there is no aliasing in the following switch
713 if (s->bpp >= 100 || s->bppcount >= 10) {
714 av_log(s->avctx, AV_LOG_ERROR,
715 "Unsupported image parameters: bpp=%d, bppcount=%d\n",
716 s->bpp, s->bppcount);
717 return AVERROR_INVALIDDATA;
720 switch (s->planar * 1000 + s->bpp * 10 + s->bppcount + s->is_bayer * 10000) {
722 if (!s->palette_is_set) {
723 s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
728 s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
729 if (!s->palette_is_set) {
730 create_gray_palette = 1;
734 s->avctx->pix_fmt = s->palette_is_set ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_GRAY8;
737 s->avctx->pix_fmt = AV_PIX_FMT_GRAY12;
740 switch (AV_RL32(s->pattern)) {
742 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB8;
745 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR8;
748 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG8;
751 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG8;
754 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
755 AV_RL32(s->pattern));
756 return AVERROR_PATCHWELCOME;
760 switch (AV_RL32(s->pattern)) {
762 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_RGGB16LE : AV_PIX_FMT_BAYER_RGGB16BE;
765 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_BGGR16LE : AV_PIX_FMT_BAYER_BGGR16BE;
768 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GBRG16LE : AV_PIX_FMT_BAYER_GBRG16BE;
771 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GRBG16LE : AV_PIX_FMT_BAYER_GRBG16BE;
774 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
775 AV_RL32(s->pattern));
776 return AVERROR_PATCHWELCOME;
780 switch (AV_RL32(s->pattern)) {
782 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_RGGB16LE : AV_PIX_FMT_BAYER_RGGB16BE;
785 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_BGGR16LE : AV_PIX_FMT_BAYER_BGGR16BE;
788 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GBRG16LE : AV_PIX_FMT_BAYER_GBRG16BE;
791 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GRBG16LE : AV_PIX_FMT_BAYER_GRBG16BE;
794 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
795 AV_RL32(s->pattern));
796 return AVERROR_PATCHWELCOME;
800 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
801 if (s->subsampling[0] == 1 && s->subsampling[1] == 1) {
802 s->avctx->pix_fmt = AV_PIX_FMT_YUV444P;
803 } else if (s->subsampling[0] == 2 && s->subsampling[1] == 1) {
804 s->avctx->pix_fmt = AV_PIX_FMT_YUV422P;
805 } else if (s->subsampling[0] == 4 && s->subsampling[1] == 1) {
806 s->avctx->pix_fmt = AV_PIX_FMT_YUV411P;
807 } else if (s->subsampling[0] == 1 && s->subsampling[1] == 2) {
808 s->avctx->pix_fmt = AV_PIX_FMT_YUV440P;
809 } else if (s->subsampling[0] == 2 && s->subsampling[1] == 2) {
810 s->avctx->pix_fmt = AV_PIX_FMT_YUV420P;
811 } else if (s->subsampling[0] == 4 && s->subsampling[1] == 4) {
812 s->avctx->pix_fmt = AV_PIX_FMT_YUV410P;
814 av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr subsampling\n");
815 return AVERROR_PATCHWELCOME;
818 s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
821 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
824 s->avctx->pix_fmt = AV_PIX_FMT_YA8;
827 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_YA16LE : AV_PIX_FMT_YA16BE;
830 s->avctx->pix_fmt = s->photometric == TIFF_PHOTOMETRIC_SEPARATED ? AV_PIX_FMT_RGB0 : AV_PIX_FMT_RGBA;
833 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED)
834 s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
836 av_log(s->avctx, AV_LOG_ERROR,
837 "bpp=40 without PHOTOMETRIC_SEPARATED is unsupported\n");
838 return AVERROR_PATCHWELCOME;
842 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
845 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
848 s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
851 s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
854 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE;
857 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE;
860 av_log(s->avctx, AV_LOG_ERROR,
861 "This format is not supported (bpp=%d, bppcount=%d)\n",
862 s->bpp, s->bppcount);
863 return AVERROR_INVALIDDATA;
866 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
867 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
868 if((desc->flags & AV_PIX_FMT_FLAG_RGB) ||
869 !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) ||
870 desc->nb_components < 3) {
871 av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr variant\n");
872 return AVERROR_INVALIDDATA;
876 if (s->width != s->avctx->width || s->height != s->avctx->height) {
877 ret = ff_set_dimensions(s->avctx, s->width, s->height);
881 if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
883 if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
884 if (!create_gray_palette)
885 memcpy(frame->f->data[1], s->palette, sizeof(s->palette));
887 /* make default grayscale pal */
889 uint32_t *pal = (uint32_t *)frame->f->data[1];
890 for (i = 0; i < 1<<s->bpp; i++)
891 pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
897 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
899 int offset = tag == TIFF_YRES ? 2 : 0;
900 s->res[offset++] = num;
901 s->res[offset] = den;
902 if (s->res[0] && s->res[1] && s->res[2] && s->res[3]) {
903 uint64_t num = s->res[2] * (uint64_t)s->res[1];
904 uint64_t den = s->res[0] * (uint64_t)s->res[3];
905 if (num > INT64_MAX || den > INT64_MAX) {
909 av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den,
910 num, den, INT32_MAX);
911 if (!s->avctx->sample_aspect_ratio.den)
912 s->avctx->sample_aspect_ratio = (AVRational) {0, 1};
916 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
918 unsigned tag, type, count, off, value = 0, value2 = 0;
924 ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
929 off = bytestream2_tell(&s->gb);
935 value = ff_tget(&s->gb, type, s->le);
938 value = ff_tget(&s->gb, TIFF_LONG, s->le);
939 value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
959 av_log(s->avctx, AV_LOG_ERROR,
960 "This format is not supported (bpp=%d, %d components)\n",
962 return AVERROR_INVALIDDATA;
973 if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
974 return AVERROR_INVALIDDATA;
975 for (i = 0; i < count; i++)
976 s->bpp += ff_tget(&s->gb, type, s->le);
983 case TIFF_SAMPLES_PER_PIXEL:
985 av_log(s->avctx, AV_LOG_ERROR,
986 "Samples per pixel requires a single value, many provided\n");
987 return AVERROR_INVALIDDATA;
990 av_log(s->avctx, AV_LOG_ERROR,
991 "Samples per pixel %d is too large\n", value);
992 return AVERROR_INVALIDDATA;
994 if (s->bppcount == 1)
1000 av_log(s->avctx, AV_LOG_DEBUG, "compression: %d\n", s->compr);
1006 case TIFF_CCITT_RLE:
1013 case TIFF_ADOBE_DEFLATE:
1017 av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
1018 return AVERROR(ENOSYS);
1022 avpriv_report_missing_feature(s->avctx, "JPEG compression");
1023 return AVERROR_PATCHWELCOME;
1028 av_log(s->avctx, AV_LOG_ERROR, "LZMA not compiled in\n");
1029 return AVERROR(ENOSYS);
1032 av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
1034 return AVERROR_INVALIDDATA;
1037 case TIFF_ROWSPERSTRIP:
1038 if (!value || (type == TIFF_LONG && value == UINT_MAX))
1040 s->rps = FFMIN(value, s->height);
1042 case TIFF_STRIP_OFFS:
1044 if (value > INT_MAX) {
1045 av_log(s->avctx, AV_LOG_ERROR,
1046 "strippos %u too large\n", value);
1047 return AVERROR_INVALIDDATA;
1050 s->stripoff = value;
1058 case TIFF_STRIP_SIZE:
1060 if (value > INT_MAX) {
1061 av_log(s->avctx, AV_LOG_ERROR,
1062 "stripsize %u too large\n", value);
1063 return AVERROR_INVALIDDATA;
1065 s->stripsizesoff = 0;
1066 s->stripsize = value;
1069 s->stripsizesoff = off;
1076 set_sar(s, tag, value, value2);
1078 case TIFF_TILE_BYTE_COUNTS:
1079 case TIFF_TILE_LENGTH:
1080 case TIFF_TILE_OFFSETS:
1081 case TIFF_TILE_WIDTH:
1082 av_log(s->avctx, AV_LOG_ERROR, "Tiled images are not supported\n");
1083 return AVERROR_PATCHWELCOME;
1085 case TIFF_PREDICTOR:
1086 s->predictor = value;
1091 case TIFF_WHITE_LEVEL:
1092 s->white_level = value;
1094 case TIFF_CFA_PATTERN_DIM:
1095 if (count != 2 || (ff_tget(&s->gb, type, s->le) != 2 &&
1096 ff_tget(&s->gb, type, s->le) != 2)) {
1097 av_log(s->avctx, AV_LOG_ERROR, "CFA Pattern dimensions are not 2x2\n");
1098 return AVERROR_INVALIDDATA;
1101 case TIFF_CFA_PATTERN:
1103 s->pattern[0] = ff_tget(&s->gb, type, s->le);
1104 s->pattern[1] = ff_tget(&s->gb, type, s->le);
1105 s->pattern[2] = ff_tget(&s->gb, type, s->le);
1106 s->pattern[3] = ff_tget(&s->gb, type, s->le);
1108 case TIFF_PHOTOMETRIC:
1110 case TIFF_PHOTOMETRIC_WHITE_IS_ZERO:
1111 case TIFF_PHOTOMETRIC_BLACK_IS_ZERO:
1112 case TIFF_PHOTOMETRIC_RGB:
1113 case TIFF_PHOTOMETRIC_PALETTE:
1114 case TIFF_PHOTOMETRIC_SEPARATED:
1115 case TIFF_PHOTOMETRIC_YCBCR:
1116 case TIFF_PHOTOMETRIC_CFA:
1117 s->photometric = value;
1119 case TIFF_PHOTOMETRIC_ALPHA_MASK:
1120 case TIFF_PHOTOMETRIC_CIE_LAB:
1121 case TIFF_PHOTOMETRIC_ICC_LAB:
1122 case TIFF_PHOTOMETRIC_ITU_LAB:
1123 case TIFF_PHOTOMETRIC_LOG_L:
1124 case TIFF_PHOTOMETRIC_LOG_LUV:
1125 case TIFF_PHOTOMETRIC_LINEAR_RAW:
1126 avpriv_report_missing_feature(s->avctx,
1127 "PhotometricInterpretation 0x%04X",
1129 return AVERROR_PATCHWELCOME;
1131 av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
1132 "unknown\n", value);
1133 return AVERROR_INVALIDDATA;
1136 case TIFF_FILL_ORDER:
1137 if (value < 1 || value > 2) {
1138 av_log(s->avctx, AV_LOG_ERROR,
1139 "Unknown FillOrder value %d, trying default one\n", value);
1142 s->fill_order = value - 1;
1145 GetByteContext pal_gb[3];
1146 off = type_sizes[type];
1147 if (count / 3 > 256 ||
1148 bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
1149 return AVERROR_INVALIDDATA;
1151 pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
1152 bytestream2_skip(&pal_gb[1], count / 3 * off);
1153 bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
1155 off = (type_sizes[type] - 1) << 3;
1157 av_log(s->avctx, AV_LOG_ERROR, "palette shift %d is out of range\n", off);
1158 return AVERROR_INVALIDDATA;
1161 for (i = 0; i < count / 3; i++) {
1162 uint32_t p = 0xFF000000;
1163 p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
1164 p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
1165 p |= ff_tget(&pal_gb[2], type, s->le) >> off;
1168 s->palette_is_set = 1;
1172 s->planar = value == 2;
1174 case TIFF_YCBCR_SUBSAMPLING:
1176 av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n");
1177 return AVERROR_INVALIDDATA;
1179 for (i = 0; i < count; i++) {
1180 s->subsampling[i] = ff_tget(&s->gb, type, s->le);
1181 if (s->subsampling[i] <= 0) {
1182 av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]);
1183 s->subsampling[i] = 1;
1184 return AVERROR_INVALIDDATA;
1188 case TIFF_T4OPTIONS:
1189 if (s->compr == TIFF_G3)
1190 s->fax_opts = value;
1192 case TIFF_T6OPTIONS:
1193 if (s->compr == TIFF_G4)
1194 s->fax_opts = value;
1196 #define ADD_METADATA(count, name, sep)\
1197 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
1198 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
1201 case TIFF_MODEL_PIXEL_SCALE:
1202 ADD_METADATA(count, "ModelPixelScaleTag", NULL);
1204 case TIFF_MODEL_TRANSFORMATION:
1205 ADD_METADATA(count, "ModelTransformationTag", NULL);
1207 case TIFF_MODEL_TIEPOINT:
1208 ADD_METADATA(count, "ModelTiepointTag", NULL);
1210 case TIFF_GEO_KEY_DIRECTORY:
1211 if (s->geotag_count) {
1212 avpriv_request_sample(s->avctx, "Multiple geo key directories\n");
1213 return AVERROR_INVALIDDATA;
1215 ADD_METADATA(1, "GeoTIFF_Version", NULL);
1216 ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
1217 s->geotag_count = ff_tget_short(&s->gb, s->le);
1218 if (s->geotag_count > count / 4 - 1) {
1219 s->geotag_count = count / 4 - 1;
1220 av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
1222 if ( bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4
1223 || s->geotag_count == 0) {
1224 s->geotag_count = 0;
1227 s->geotags = av_mallocz_array(s->geotag_count, sizeof(TiffGeoTag));
1229 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1230 s->geotag_count = 0;
1233 for (i = 0; i < s->geotag_count; i++) {
1234 s->geotags[i].key = ff_tget_short(&s->gb, s->le);
1235 s->geotags[i].type = ff_tget_short(&s->gb, s->le);
1236 s->geotags[i].count = ff_tget_short(&s->gb, s->le);
1238 if (!s->geotags[i].type)
1239 s->geotags[i].val = get_geokey_val(s->geotags[i].key, ff_tget_short(&s->gb, s->le));
1241 s->geotags[i].offset = ff_tget_short(&s->gb, s->le);
1244 case TIFF_GEO_DOUBLE_PARAMS:
1245 if (count >= INT_MAX / sizeof(int64_t))
1246 return AVERROR_INVALIDDATA;
1247 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
1248 return AVERROR_INVALIDDATA;
1249 dp = av_malloc_array(count, sizeof(double));
1251 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1254 for (i = 0; i < count; i++)
1255 dp[i] = ff_tget_double(&s->gb, s->le);
1256 for (i = 0; i < s->geotag_count; i++) {
1257 if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
1258 if (s->geotags[i].count == 0
1259 || s->geotags[i].offset + s->geotags[i].count > count) {
1260 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1261 } else if (s->geotags[i].val) {
1262 av_log(s->avctx, AV_LOG_WARNING, "Duplicate GeoTIFF key %d\n", s->geotags[i].key);
1264 char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
1266 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1268 return AVERROR(ENOMEM);
1270 s->geotags[i].val = ap;
1276 case TIFF_GEO_ASCII_PARAMS:
1277 pos = bytestream2_tell(&s->gb);
1278 for (i = 0; i < s->geotag_count; i++) {
1279 if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
1280 if (s->geotags[i].count == 0
1281 || s->geotags[i].offset + s->geotags[i].count > count) {
1282 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1286 bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
1287 if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
1288 return AVERROR_INVALIDDATA;
1289 if (s->geotags[i].val)
1290 return AVERROR_INVALIDDATA;
1291 ap = av_malloc(s->geotags[i].count);
1293 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1294 return AVERROR(ENOMEM);
1296 bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
1297 ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
1298 s->geotags[i].val = ap;
1304 ADD_METADATA(count, "artist", NULL);
1306 case TIFF_COPYRIGHT:
1307 ADD_METADATA(count, "copyright", NULL);
1310 ADD_METADATA(count, "date", NULL);
1312 case TIFF_DOCUMENT_NAME:
1313 ADD_METADATA(count, "document_name", NULL);
1315 case TIFF_HOST_COMPUTER:
1316 ADD_METADATA(count, "computer", NULL);
1318 case TIFF_IMAGE_DESCRIPTION:
1319 ADD_METADATA(count, "description", NULL);
1322 ADD_METADATA(count, "make", NULL);
1325 ADD_METADATA(count, "model", NULL);
1327 case TIFF_PAGE_NAME:
1328 ADD_METADATA(count, "page_name", NULL);
1330 case TIFF_PAGE_NUMBER:
1331 ADD_METADATA(count, "page_number", " / ");
1332 // need to seek back to re-read the page number
1333 bytestream2_seek(&s->gb, -count * sizeof(uint16_t), SEEK_CUR);
1334 // read the page number
1335 s->cur_page = ff_tget(&s->gb, TIFF_SHORT, s->le);
1336 // get back to where we were before the previous seek
1337 bytestream2_seek(&s->gb, count * sizeof(uint16_t) - sizeof(uint16_t), SEEK_CUR);
1339 case TIFF_SOFTWARE_NAME:
1340 ADD_METADATA(count, "software", NULL);
1343 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1344 av_log(s->avctx, AV_LOG_ERROR,
1345 "Unknown or unsupported tag %d/0x%0X\n",
1347 return AVERROR_INVALIDDATA;
1352 av_log(s->avctx, AV_LOG_ERROR,
1353 "This format is not supported (bpp=%d, %d components)\n",
1356 return AVERROR_INVALIDDATA;
1358 bytestream2_seek(&s->gb, start, SEEK_SET);
1362 static int decode_frame(AVCodecContext *avctx,
1363 void *data, int *got_frame, AVPacket *avpkt)
1365 TiffContext *const s = avctx->priv_data;
1366 AVFrame *const p = data;
1367 ThreadFrame frame = { .f = data };
1369 int le, ret, plane, planes;
1370 int i, j, entries, stride;
1371 unsigned soff, ssize;
1373 GetByteContext stripsizes;
1374 GetByteContext stripdata;
1375 int retry_for_subifd, retry_for_page;
1377 bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1379 // parse image header
1380 if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
1381 av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
1383 } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1384 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1385 return AVERROR_INVALIDDATA;
1388 // TIFF_BPP is not a required tag and defaults to 1
1390 s->bppcount = s->bpp = 1;
1391 s->photometric = TIFF_PHOTOMETRIC_NONE;
1392 s->compr = TIFF_RAW;
1399 // Reset these offsets so we can tell if they were set this frame
1400 s->stripsizesoff = s->strippos = 0;
1401 /* parse image file directory */
1402 bytestream2_seek(&s->gb, off, SEEK_SET);
1403 entries = ff_tget_short(&s->gb, le);
1404 if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1405 return AVERROR_INVALIDDATA;
1406 for (i = 0; i < entries; i++) {
1407 if ((ret = tiff_decode_tag(s, p)) < 0)
1411 /** whether we should look for this IFD's SubIFD */
1412 retry_for_subifd = s->sub_ifd && s->get_subimage;
1413 /** whether we should look for this multi-page IFD's next page */
1414 retry_for_page = s->get_page && s->cur_page + 1 < s->get_page; // get_page is 1-indexed
1416 if (retry_for_page) {
1417 // set offset to the next IFD
1418 off = ff_tget_long(&s->gb, le);
1419 } else if (retry_for_subifd) {
1420 // set offset to the SubIFD
1424 if (retry_for_subifd || retry_for_page) {
1425 if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1426 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1427 return AVERROR_INVALIDDATA;
1433 for (i = 0; i<s->geotag_count; i++) {
1434 const char *keyname = get_geokey_name(s->geotags[i].key);
1436 av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
1439 if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
1440 av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
1443 ret = av_dict_set(&p->metadata, keyname, s->geotags[i].val, 0);
1445 av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
1450 if (!s->strippos && !s->stripoff) {
1451 av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
1452 return AVERROR_INVALIDDATA;
1454 /* now we have the data and may start decoding */
1455 if ((ret = init_image(s, &frame)) < 0)
1458 if (s->strips == 1 && !s->stripsize) {
1459 av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
1460 s->stripsize = avpkt->size - s->stripoff;
1463 if (s->stripsizesoff) {
1464 if (s->stripsizesoff >= (unsigned)avpkt->size)
1465 return AVERROR_INVALIDDATA;
1466 bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
1467 avpkt->size - s->stripsizesoff);
1470 if (s->strippos >= (unsigned)avpkt->size)
1471 return AVERROR_INVALIDDATA;
1472 bytestream2_init(&stripdata, avpkt->data + s->strippos,
1473 avpkt->size - s->strippos);
1476 if (s->rps <= 0 || s->rps % s->subsampling[1]) {
1477 av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1478 return AVERROR_INVALIDDATA;
1481 planes = s->planar ? s->bppcount : 1;
1482 for (plane = 0; plane < planes; plane++) {
1483 uint8_t *five_planes = NULL;
1484 int remaining = avpkt->size;
1486 stride = p->linesize[plane];
1487 dst = p->data[plane];
1488 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
1489 s->avctx->pix_fmt == AV_PIX_FMT_RGBA) {
1490 stride = stride * 5 / 4;
1492 dst = av_malloc(stride * s->height);
1494 return AVERROR(ENOMEM);
1496 for (i = 0; i < s->height; i += s->rps) {
1498 dst += s->rps * stride;
1499 if (s->stripsizesoff)
1500 ssize = ff_tget(&stripsizes, s->sstype, le);
1502 ssize = s->stripsize;
1505 soff = ff_tget(&stripdata, s->sot, le);
1509 if (soff > avpkt->size || ssize > avpkt->size - soff || ssize > remaining) {
1510 av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
1511 av_freep(&five_planes);
1512 return AVERROR_INVALIDDATA;
1515 if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i,
1516 FFMIN(s->rps, s->height - i))) < 0) {
1517 if (avctx->err_recognition & AV_EF_EXPLODE) {
1518 av_freep(&five_planes);
1524 decoded_height = FFMIN(i, s->height);
1526 if (s->predictor == 2) {
1527 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1528 av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported");
1529 return AVERROR_PATCHWELCOME;
1531 dst = five_planes ? five_planes : p->data[plane];
1534 soff = FFMAX(soff / s->bppcount, 1);
1535 ssize = s->width * soff;
1536 if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
1537 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
1538 s->avctx->pix_fmt == AV_PIX_FMT_GRAY16LE ||
1539 s->avctx->pix_fmt == AV_PIX_FMT_YA16LE ||
1540 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
1541 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
1542 for (i = 0; i < decoded_height; i++) {
1543 for (j = soff; j < ssize; j += 2)
1544 AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
1547 } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
1548 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
1549 s->avctx->pix_fmt == AV_PIX_FMT_GRAY16BE ||
1550 s->avctx->pix_fmt == AV_PIX_FMT_YA16BE ||
1551 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
1552 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
1553 for (i = 0; i < decoded_height; i++) {
1554 for (j = soff; j < ssize; j += 2)
1555 AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
1559 for (i = 0; i < decoded_height; i++) {
1560 for (j = soff; j < ssize; j++)
1561 dst[j] += dst[j - soff];
1567 if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) {
1568 int c = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255);
1569 dst = p->data[plane];
1570 for (i = 0; i < s->height; i++) {
1571 for (j = 0; j < stride; j++)
1572 dst[j] = c - dst[j];
1577 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
1578 (s->avctx->pix_fmt == AV_PIX_FMT_RGB0 || s->avctx->pix_fmt == AV_PIX_FMT_RGBA)) {
1579 int x = s->avctx->pix_fmt == AV_PIX_FMT_RGB0 ? 4 : 5;
1580 uint8_t *src = five_planes ? five_planes : p->data[plane];
1581 dst = p->data[plane];
1582 for (i = 0; i < s->height; i++) {
1583 for (j = 0; j < s->width; j++) {
1584 int k = 255 - src[x * j + 3];
1585 int r = (255 - src[x * j ]) * k;
1586 int g = (255 - src[x * j + 1]) * k;
1587 int b = (255 - src[x * j + 2]) * k;
1588 dst[4 * j ] = r * 257 >> 16;
1589 dst[4 * j + 1] = g * 257 >> 16;
1590 dst[4 * j + 2] = b * 257 >> 16;
1591 dst[4 * j + 3] = s->avctx->pix_fmt == AV_PIX_FMT_RGBA ? src[x * j + 4] : 255;
1594 dst += p->linesize[plane];
1596 av_freep(&five_planes);
1597 } else if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
1598 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) {
1599 dst = p->data[plane];
1600 for (i = 0; i < s->height; i++) {
1601 for (j = 0; j < s->width; j++) {
1602 uint64_t k = 65535 - AV_RB16(dst + 8 * j + 6);
1603 uint64_t r = (65535 - AV_RB16(dst + 8 * j )) * k;
1604 uint64_t g = (65535 - AV_RB16(dst + 8 * j + 2)) * k;
1605 uint64_t b = (65535 - AV_RB16(dst + 8 * j + 4)) * k;
1606 AV_WB16(dst + 8 * j , r * 65537 >> 32);
1607 AV_WB16(dst + 8 * j + 2, g * 65537 >> 32);
1608 AV_WB16(dst + 8 * j + 4, b * 65537 >> 32);
1609 AV_WB16(dst + 8 * j + 6, 65535);
1611 dst += p->linesize[plane];
1616 if (s->planar && s->bppcount > 2) {
1617 FFSWAP(uint8_t*, p->data[0], p->data[2]);
1618 FFSWAP(int, p->linesize[0], p->linesize[2]);
1619 FFSWAP(uint8_t*, p->data[0], p->data[1]);
1620 FFSWAP(int, p->linesize[0], p->linesize[1]);
1623 if (s->is_bayer && s->white_level && s->bpp == 16) {
1624 uint16_t *dst = (uint16_t *)p->data[0];
1625 for (i = 0; i < s->height; i++) {
1626 for (j = 0; j < s->width; j++)
1627 dst[j] = FFMIN((dst[j] / (float)s->white_level) * 65535, 65535);
1637 static av_cold int tiff_init(AVCodecContext *avctx)
1639 TiffContext *s = avctx->priv_data;
1644 s->subsampling[1] = 1;
1646 ff_lzw_decode_open(&s->lzw);
1648 return AVERROR(ENOMEM);
1649 ff_ccitt_unpack_init();
1654 static av_cold int tiff_end(AVCodecContext *avctx)
1656 TiffContext *const s = avctx->priv_data;
1660 ff_lzw_decode_close(&s->lzw);
1661 av_freep(&s->deinvert_buf);
1662 s->deinvert_buf_size = 0;
1663 av_freep(&s->yuv_line);
1664 s->yuv_line_size = 0;
1665 av_freep(&s->fax_buffer);
1666 s->fax_buffer_size = 0;
1670 #define OFFSET(x) offsetof(TiffContext, x)
1671 static const AVOption tiff_options[] = {
1672 { "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 },
1673 { "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 },
1677 static const AVClass tiff_decoder_class = {
1678 .class_name = "TIFF decoder",
1679 .item_name = av_default_item_name,
1680 .option = tiff_options,
1681 .version = LIBAVUTIL_VERSION_INT,
1684 AVCodec ff_tiff_decoder = {
1686 .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
1687 .type = AVMEDIA_TYPE_VIDEO,
1688 .id = AV_CODEC_ID_TIFF,
1689 .priv_data_size = sizeof(TiffContext),
1692 .decode = decode_frame,
1693 .init_thread_copy = ONLY_IF_THREADS_ENABLED(tiff_init),
1694 .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
1695 .priv_class = &tiff_decoder_class,