2 * Copyright (c) 2006 Konstantin Shishkov
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 * @author Konstantin Shishkov
32 #include "libavutil/attributes.h"
33 #include "libavutil/avstring.h"
34 #include "libavutil/intreadwrite.h"
35 #include "libavutil/imgutils.h"
37 #include "bytestream.h"
43 #include "tiff_data.h"
46 typedef struct TiffContext {
47 AVCodecContext *avctx;
51 unsigned int bpp, bppcount;
52 uint32_t palette[256];
56 enum TiffPhotometric photometric;
63 int strips, rps, sstype;
65 int stripsizesoff, stripsize, stripoff, strippos;
68 uint8_t *deinvert_buf;
69 int deinvert_buf_size;
75 static void free_geotags(TiffContext *const s)
78 for (i = 0; i < s->geotag_count; i++) {
79 if (s->geotags[i].val)
80 av_freep(&s->geotags[i].val);
82 av_freep(&s->geotags);
86 #define RET_GEOKEY(TYPE, array, element)\
87 if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
88 key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_name_type_map))\
89 return ff_tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].element;
91 static const char *get_geokey_name(int key)
93 RET_GEOKEY(VERT, vert, name);
94 RET_GEOKEY(PROJ, proj, name);
95 RET_GEOKEY(GEOG, geog, name);
96 RET_GEOKEY(CONF, conf, name);
101 static int get_geokey_type(int key)
103 RET_GEOKEY(VERT, vert, type);
104 RET_GEOKEY(PROJ, proj, type);
105 RET_GEOKEY(GEOG, geog, type);
106 RET_GEOKEY(CONF, conf, type);
108 return AVERROR_INVALIDDATA;
111 static int cmp_id_key(const void *id, const void *k)
113 return *(const int*)id - ((const TiffGeoTagKeyName*)k)->key;
116 static const char *search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
118 TiffGeoTagKeyName *r = bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key);
125 static char *get_geokey_val(int key, int val)
129 if (val == TIFF_GEO_KEY_UNDEFINED)
130 return av_strdup("undefined");
131 if (val == TIFF_GEO_KEY_USER_DEFINED)
132 return av_strdup("User-Defined");
134 #define RET_GEOKEY_VAL(TYPE, array)\
135 if (val >= TIFF_##TYPE##_OFFSET &&\
136 val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_codes))\
137 return av_strdup(ff_tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET]);
140 case TIFF_GT_MODEL_TYPE_GEOKEY:
141 RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
143 case TIFF_GT_RASTER_TYPE_GEOKEY:
144 RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
146 case TIFF_GEOG_LINEAR_UNITS_GEOKEY:
147 case TIFF_PROJ_LINEAR_UNITS_GEOKEY:
148 case TIFF_VERTICAL_UNITS_GEOKEY:
149 RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
151 case TIFF_GEOG_ANGULAR_UNITS_GEOKEY:
152 case TIFF_GEOG_AZIMUTH_UNITS_GEOKEY:
153 RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
155 case TIFF_GEOGRAPHIC_TYPE_GEOKEY:
156 RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
157 RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
159 case TIFF_GEOG_GEODETIC_DATUM_GEOKEY:
160 RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
161 RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
163 case TIFF_GEOG_ELLIPSOID_GEOKEY:
164 RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
166 case TIFF_GEOG_PRIME_MERIDIAN_GEOKEY:
167 RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
169 case TIFF_PROJECTED_CS_TYPE_GEOKEY:
170 ap = av_strdup(search_keyval(ff_tiff_proj_cs_type_codes, FF_ARRAY_ELEMS(ff_tiff_proj_cs_type_codes), val));
173 case TIFF_PROJECTION_GEOKEY:
174 ap = av_strdup(search_keyval(ff_tiff_projection_codes, FF_ARRAY_ELEMS(ff_tiff_projection_codes), val));
177 case TIFF_PROJ_COORD_TRANS_GEOKEY:
178 RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
180 case TIFF_VERTICAL_CS_TYPE_GEOKEY:
181 RET_GEOKEY_VAL(VERT_CS, vert_cs);
182 RET_GEOKEY_VAL(ORTHO_VERT_CS, ortho_vert_cs);
189 snprintf(ap, 14, "Unknown-%d", val);
193 static char *doubles2str(double *dp, int count, const char *sep)
197 uint64_t component_len;
198 if (!sep) sep = ", ";
199 component_len = 24LL + strlen(sep);
200 if (count >= (INT_MAX - 1)/component_len)
202 ap = av_malloc(component_len * count + 1);
207 for (i = 0; i < count; i++) {
208 unsigned l = snprintf(ap, component_len, "%.15g%s", dp[i], sep);
209 if(l >= component_len) {
215 ap0[strlen(ap0) - strlen(sep)] = '\0';
219 static int add_metadata(int count, int type,
220 const char *name, const char *sep, TiffContext *s, AVFrame *frame)
223 case TIFF_DOUBLE: return ff_tadd_doubles_metadata(count, name, sep, &s->gb, s->le, avpriv_frame_get_metadatap(frame));
224 case TIFF_SHORT : return ff_tadd_shorts_metadata(count, name, sep, &s->gb, s->le, avpriv_frame_get_metadatap(frame));
225 case TIFF_STRING: return ff_tadd_string_metadata(count, name, &s->gb, s->le, avpriv_frame_get_metadatap(frame));
226 default : return AVERROR_INVALIDDATA;
230 static void av_always_inline horizontal_fill(unsigned int bpp, uint8_t* dst,
231 int usePtr, const uint8_t *src,
232 uint8_t c, int width, int offset)
236 while (--width >= 0) {
237 dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
238 dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
239 dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
240 dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
241 dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
242 dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
243 dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
244 dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
248 while (--width >= 0) {
249 dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
250 dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
251 dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
252 dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
256 while (--width >= 0) {
257 dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
258 dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
263 memcpy(dst + offset, src, width);
265 memset(dst + offset, c, width);
270 static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
274 av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
275 if (!s->deinvert_buf)
276 return AVERROR(ENOMEM);
277 for (i = 0; i < size; i++)
278 s->deinvert_buf[i] = ff_reverse[src[i]];
284 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
287 z_stream zstream = { 0 };
290 zstream.next_in = (uint8_t *)src;
291 zstream.avail_in = size;
292 zstream.next_out = dst;
293 zstream.avail_out = *len;
294 zret = inflateInit(&zstream);
296 av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
299 zret = inflate(&zstream, Z_SYNC_FLUSH);
300 inflateEnd(&zstream);
301 *len = zstream.total_out;
302 return zret == Z_STREAM_END ? Z_OK : zret;
305 static int tiff_unpack_zlib(TiffContext *s, uint8_t *dst, int stride,
306 const uint8_t *src, int size,
307 int width, int lines)
310 unsigned long outlen;
312 outlen = width * lines;
313 zbuf = av_malloc(outlen);
315 return AVERROR(ENOMEM);
317 if ((ret = deinvert_buffer(s, src, size)) < 0) {
321 src = s->deinvert_buf;
323 ret = tiff_uncompress(zbuf, &outlen, src, size);
325 av_log(s->avctx, AV_LOG_ERROR,
326 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
327 (unsigned long)width * lines, ret);
329 return AVERROR_UNKNOWN;
332 for (line = 0; line < lines; line++) {
333 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
334 horizontal_fill(s->bpp, dst, 1, src, 0, width, 0);
336 memcpy(dst, src, width);
347 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
348 const uint8_t *src, int size, int width, int lines)
352 uint8_t *src2 = av_malloc((unsigned)size +
353 FF_INPUT_BUFFER_PADDING_SIZE);
356 av_log(s->avctx, AV_LOG_ERROR,
357 "Error allocating temporary buffer\n");
358 return AVERROR(ENOMEM);
360 if (s->fax_opts & 2) {
361 avpriv_request_sample(s->avctx, "Uncompressed fax mode");
363 return AVERROR_PATCHWELCOME;
365 if (!s->fill_order) {
366 memcpy(src2, src, size);
368 for (i = 0; i < size; i++)
369 src2[i] = ff_reverse[src[i]];
371 memset(src2 + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
372 ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
373 s->compr, s->fax_opts);
374 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
375 for (line = 0; line < lines; line++) {
376 horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
383 static int tiff_unpack_strip(TiffContext *s, uint8_t *dst, int stride,
384 const uint8_t *src, int size, int lines)
387 int c, line, pixels, code, ret;
388 const uint8_t *ssrc = src;
389 int width = ((s->width * s->bpp) + 7) >> 3;
392 width /= s->bppcount;
395 return AVERROR_INVALIDDATA;
397 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
399 return tiff_unpack_zlib(s, dst, stride, src, size, width, lines);
401 av_log(s->avctx, AV_LOG_ERROR,
402 "zlib support not enabled, "
403 "deflate compression not supported\n");
404 return AVERROR(ENOSYS);
407 if (s->compr == TIFF_LZW) {
409 if ((ret = deinvert_buffer(s, src, size)) < 0)
411 ssrc = src = s->deinvert_buf;
413 if (size > 1 && !src[0] && (src[1]&1)) {
414 av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
416 if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
417 av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
420 for (line = 0; line < lines; line++) {
421 pixels = ff_lzw_decode(s->lzw, dst, width);
422 if (pixels < width) {
423 av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
425 return AVERROR_INVALIDDATA;
427 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
428 horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
433 if (s->compr == TIFF_CCITT_RLE ||
434 s->compr == TIFF_G3 ||
435 s->compr == TIFF_G4) {
436 return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
439 bytestream2_init(&s->gb, src, size);
440 bytestream2_init_writer(&pb, dst, stride * lines);
442 for (line = 0; line < lines; line++) {
443 if (src - ssrc > size) {
444 av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
445 return AVERROR_INVALIDDATA;
448 if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb))
450 bytestream2_seek_p(&pb, stride * line, SEEK_SET);
453 if (ssrc + size - src < width)
454 return AVERROR_INVALIDDATA;
456 if (!s->fill_order) {
457 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
458 dst, 1, src, 0, width, 0);
461 for (i = 0; i < width; i++)
462 dst[i] = ff_reverse[src[i]];
467 for (pixels = 0; pixels < width;) {
468 if (ssrc + size - src < 2) {
469 av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
470 return AVERROR_INVALIDDATA;
472 code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
475 if (pixels + code > width ||
476 ssrc + size - src < code) {
477 av_log(s->avctx, AV_LOG_ERROR,
478 "Copy went out of bounds\n");
479 return AVERROR_INVALIDDATA;
481 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
482 dst, 1, src, 0, code, pixels);
485 } else if (code != -128) { // -127..-1
487 if (pixels + code > width) {
488 av_log(s->avctx, AV_LOG_ERROR,
489 "Run went out of bounds\n");
490 return AVERROR_INVALIDDATA;
493 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
494 dst, 0, NULL, c, code, pixels);
500 for (i = 0; i < width; i++)
501 dst[i] = ff_reverse[dst[i]];
510 static int init_image(TiffContext *s, ThreadFrame *frame)
515 switch (s->planar * 1000 + s->bpp * 10 + s->bppcount) {
517 if (!s->palette_is_set) {
518 s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
524 s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
527 s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
530 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
533 s->avctx->pix_fmt = AV_PIX_FMT_GRAY8A;
536 s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
539 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
542 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
545 s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
548 s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
551 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE;
554 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE;
557 av_log(s->avctx, AV_LOG_ERROR,
558 "This format is not supported (bpp=%d, bppcount=%d)\n",
559 s->bpp, s->bppcount);
560 return AVERROR_INVALIDDATA;
562 if (s->width != s->avctx->width || s->height != s->avctx->height) {
563 ret = ff_set_dimensions(s->avctx, s->width, s->height);
567 if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
569 if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
570 if (s->palette_is_set) {
571 memcpy(frame->f->data[1], s->palette, sizeof(s->palette));
573 /* make default grayscale pal */
574 pal = (uint32_t *) frame->f->data[1];
575 for (i = 0; i < 1<<s->bpp; i++)
576 pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
582 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
584 int offset = tag == TIFF_YRES ? 2 : 0;
585 s->res[offset++] = num;
586 s->res[offset] = den;
587 if (s->res[0] && s->res[1] && s->res[2] && s->res[3])
588 av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den,
589 s->res[2] * (uint64_t)s->res[1], s->res[0] * (uint64_t)s->res[3], INT32_MAX);
592 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
594 unsigned tag, type, count, off, value = 0, value2 = 0;
600 ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
605 off = bytestream2_tell(&s->gb);
611 value = ff_tget(&s->gb, type, s->le);
614 value = ff_tget(&s->gb, TIFF_LONG, s->le);
615 value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
636 av_log(s->avctx, AV_LOG_ERROR,
637 "This format is not supported (bpp=%d, %d components)\n",
639 return AVERROR_INVALIDDATA;
649 if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
650 return AVERROR_INVALIDDATA;
651 for (i = 0; i < count; i++)
652 s->bpp += ff_tget(&s->gb, type, s->le);
659 case TIFF_SAMPLES_PER_PIXEL:
661 av_log(s->avctx, AV_LOG_ERROR,
662 "Samples per pixel requires a single value, many provided\n");
663 return AVERROR_INVALIDDATA;
666 av_log(s->avctx, AV_LOG_ERROR,
667 "Samples per pixel %d is too large\n", value);
668 return AVERROR_INVALIDDATA;
670 if (s->bppcount == 1)
688 case TIFF_ADOBE_DEFLATE:
692 av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
693 return AVERROR(ENOSYS);
697 avpriv_report_missing_feature(s->avctx, "JPEG compression");
698 return AVERROR_PATCHWELCOME;
700 av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
702 return AVERROR_INVALIDDATA;
705 case TIFF_ROWSPERSTRIP:
706 if (!value || (type == TIFF_LONG && value == UINT_MAX))
708 s->rps = FFMIN(value, s->height);
710 case TIFF_STRIP_OFFS:
721 case TIFF_STRIP_SIZE:
723 s->stripsizesoff = 0;
724 s->stripsize = value;
727 s->stripsizesoff = off;
734 set_sar(s, tag, value, value2);
736 case TIFF_TILE_BYTE_COUNTS:
737 case TIFF_TILE_LENGTH:
738 case TIFF_TILE_OFFSETS:
739 case TIFF_TILE_WIDTH:
740 av_log(s->avctx, AV_LOG_ERROR, "Tiled images are not supported\n");
741 return AVERROR_PATCHWELCOME;
744 s->predictor = value;
746 case TIFF_PHOTOMETRIC:
748 case TIFF_PHOTOMETRIC_WHITE_IS_ZERO:
749 case TIFF_PHOTOMETRIC_BLACK_IS_ZERO:
750 case TIFF_PHOTOMETRIC_RGB:
751 case TIFF_PHOTOMETRIC_PALETTE:
752 s->photometric = value;
754 case TIFF_PHOTOMETRIC_ALPHA_MASK:
755 case TIFF_PHOTOMETRIC_SEPARATED:
756 case TIFF_PHOTOMETRIC_YCBCR:
757 case TIFF_PHOTOMETRIC_CIE_LAB:
758 case TIFF_PHOTOMETRIC_ICC_LAB:
759 case TIFF_PHOTOMETRIC_ITU_LAB:
760 case TIFF_PHOTOMETRIC_CFA:
761 case TIFF_PHOTOMETRIC_LOG_L:
762 case TIFF_PHOTOMETRIC_LOG_LUV:
763 case TIFF_PHOTOMETRIC_LINEAR_RAW:
764 avpriv_report_missing_feature(s->avctx,
765 "PhotometricInterpretation 0x%04X",
767 return AVERROR_PATCHWELCOME;
769 av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
771 return AVERROR_INVALIDDATA;
774 case TIFF_FILL_ORDER:
775 if (value < 1 || value > 2) {
776 av_log(s->avctx, AV_LOG_ERROR,
777 "Unknown FillOrder value %d, trying default one\n", value);
780 s->fill_order = value - 1;
783 GetByteContext pal_gb[3];
784 off = type_sizes[type];
785 if (count / 3 > 256 ||
786 bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
787 return AVERROR_INVALIDDATA;
789 pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
790 bytestream2_skip(&pal_gb[1], count / 3 * off);
791 bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
793 off = (type_sizes[type] - 1) << 3;
794 for (i = 0; i < count / 3; i++) {
795 uint32_t p = 0xFF000000;
796 p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
797 p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
798 p |= ff_tget(&pal_gb[2], type, s->le) >> off;
801 s->palette_is_set = 1;
805 s->planar = value == 2;
808 if (s->compr == TIFF_G3)
812 if (s->compr == TIFF_G4)
815 #define ADD_METADATA(count, name, sep)\
816 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
817 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
820 case TIFF_MODEL_PIXEL_SCALE:
821 ADD_METADATA(count, "ModelPixelScaleTag", NULL);
823 case TIFF_MODEL_TRANSFORMATION:
824 ADD_METADATA(count, "ModelTransformationTag", NULL);
826 case TIFF_MODEL_TIEPOINT:
827 ADD_METADATA(count, "ModelTiepointTag", NULL);
829 case TIFF_GEO_KEY_DIRECTORY:
830 ADD_METADATA(1, "GeoTIFF_Version", NULL);
831 ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
832 s->geotag_count = ff_tget_short(&s->gb, s->le);
833 if (s->geotag_count > count / 4 - 1) {
834 s->geotag_count = count / 4 - 1;
835 av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
837 if (bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4) {
841 s->geotags = av_mallocz(sizeof(TiffGeoTag) * s->geotag_count);
843 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
847 for (i = 0; i < s->geotag_count; i++) {
848 s->geotags[i].key = ff_tget_short(&s->gb, s->le);
849 s->geotags[i].type = ff_tget_short(&s->gb, s->le);
850 s->geotags[i].count = ff_tget_short(&s->gb, s->le);
852 if (!s->geotags[i].type)
853 s->geotags[i].val = get_geokey_val(s->geotags[i].key, ff_tget_short(&s->gb, s->le));
855 s->geotags[i].offset = ff_tget_short(&s->gb, s->le);
858 case TIFF_GEO_DOUBLE_PARAMS:
859 if (count >= INT_MAX / sizeof(int64_t))
860 return AVERROR_INVALIDDATA;
861 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
862 return AVERROR_INVALIDDATA;
863 dp = av_malloc(count * sizeof(double));
865 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
868 for (i = 0; i < count; i++)
869 dp[i] = ff_tget_double(&s->gb, s->le);
870 for (i = 0; i < s->geotag_count; i++) {
871 if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
872 if (s->geotags[i].count == 0
873 || s->geotags[i].offset + s->geotags[i].count > count) {
874 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
876 char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
878 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
880 return AVERROR(ENOMEM);
882 s->geotags[i].val = ap;
888 case TIFF_GEO_ASCII_PARAMS:
889 pos = bytestream2_tell(&s->gb);
890 for (i = 0; i < s->geotag_count; i++) {
891 if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
892 if (s->geotags[i].count == 0
893 || s->geotags[i].offset + s->geotags[i].count > count) {
894 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
898 bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
899 if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
900 return AVERROR_INVALIDDATA;
901 ap = av_malloc(s->geotags[i].count);
903 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
904 return AVERROR(ENOMEM);
906 bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
907 ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
908 s->geotags[i].val = ap;
914 ADD_METADATA(count, "artist", NULL);
917 ADD_METADATA(count, "copyright", NULL);
920 ADD_METADATA(count, "date", NULL);
922 case TIFF_DOCUMENT_NAME:
923 ADD_METADATA(count, "document_name", NULL);
925 case TIFF_HOST_COMPUTER:
926 ADD_METADATA(count, "computer", NULL);
928 case TIFF_IMAGE_DESCRIPTION:
929 ADD_METADATA(count, "description", NULL);
932 ADD_METADATA(count, "make", NULL);
935 ADD_METADATA(count, "model", NULL);
938 ADD_METADATA(count, "page_name", NULL);
940 case TIFF_PAGE_NUMBER:
941 ADD_METADATA(count, "page_number", " / ");
943 case TIFF_SOFTWARE_NAME:
944 ADD_METADATA(count, "software", NULL);
947 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
948 av_log(s->avctx, AV_LOG_ERROR,
949 "Unknown or unsupported tag %d/0X%0X\n",
951 return AVERROR_INVALIDDATA;
955 bytestream2_seek(&s->gb, start, SEEK_SET);
959 static int decode_frame(AVCodecContext *avctx,
960 void *data, int *got_frame, AVPacket *avpkt)
962 TiffContext *const s = avctx->priv_data;
963 AVFrame *const p = data;
964 ThreadFrame frame = { .f = data };
966 int le, ret, plane, planes;
967 int i, j, entries, stride;
968 unsigned soff, ssize;
970 GetByteContext stripsizes;
971 GetByteContext stripdata;
973 bytestream2_init(&s->gb, avpkt->data, avpkt->size);
975 // parse image header
976 if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
977 av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
979 } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
980 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
981 return AVERROR_INVALIDDATA;
984 // TIFF_BPP is not a required tag and defaults to 1
985 s->bppcount = s->bpp = 1;
986 s->photometric = TIFF_PHOTOMETRIC_NONE;
991 // Reset these offsets so we can tell if they were set this frame
992 s->stripsizesoff = s->strippos = 0;
993 /* parse image file directory */
994 bytestream2_seek(&s->gb, off, SEEK_SET);
995 entries = ff_tget_short(&s->gb, le);
996 if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
997 return AVERROR_INVALIDDATA;
998 for (i = 0; i < entries; i++) {
999 if ((ret = tiff_decode_tag(s, p)) < 0)
1003 for (i = 0; i<s->geotag_count; i++) {
1004 const char *keyname = get_geokey_name(s->geotags[i].key);
1006 av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
1009 if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
1010 av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
1013 ret = av_dict_set(avpriv_frame_get_metadatap(p), keyname, s->geotags[i].val, 0);
1015 av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
1020 if (!s->strippos && !s->stripoff) {
1021 av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
1022 return AVERROR_INVALIDDATA;
1024 /* now we have the data and may start decoding */
1025 if ((ret = init_image(s, &frame)) < 0)
1028 if (s->strips == 1 && !s->stripsize) {
1029 av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
1030 s->stripsize = avpkt->size - s->stripoff;
1033 if (s->stripsizesoff) {
1034 if (s->stripsizesoff >= (unsigned)avpkt->size)
1035 return AVERROR_INVALIDDATA;
1036 bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
1037 avpkt->size - s->stripsizesoff);
1040 if (s->strippos >= (unsigned)avpkt->size)
1041 return AVERROR_INVALIDDATA;
1042 bytestream2_init(&stripdata, avpkt->data + s->strippos,
1043 avpkt->size - s->strippos);
1047 av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1048 return AVERROR_INVALIDDATA;
1051 planes = s->planar ? s->bppcount : 1;
1052 for (plane = 0; plane < planes; plane++) {
1053 stride = p->linesize[plane];
1054 dst = p->data[plane];
1055 for (i = 0; i < s->height; i += s->rps) {
1056 if (s->stripsizesoff)
1057 ssize = ff_tget(&stripsizes, s->sstype, le);
1059 ssize = s->stripsize;
1062 soff = ff_tget(&stripdata, s->sot, le);
1066 if (soff > avpkt->size || ssize > avpkt->size - soff) {
1067 av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
1068 return AVERROR_INVALIDDATA;
1070 if ((ret = tiff_unpack_strip(s, dst, stride, avpkt->data + soff, ssize,
1071 FFMIN(s->rps, s->height - i))) < 0) {
1072 if (avctx->err_recognition & AV_EF_EXPLODE)
1076 dst += s->rps * stride;
1078 if (s->predictor == 2) {
1079 dst = p->data[plane];
1082 soff = FFMAX(soff / s->bppcount, 1);
1083 ssize = s->width * soff;
1084 if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
1085 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
1086 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
1087 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
1088 for (i = 0; i < s->height; i++) {
1089 for (j = soff; j < ssize; j += 2)
1090 AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
1093 } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
1094 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
1095 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
1096 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
1097 for (i = 0; i < s->height; i++) {
1098 for (j = soff; j < ssize; j += 2)
1099 AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
1103 for (i = 0; i < s->height; i++) {
1104 for (j = soff; j < ssize; j++)
1105 dst[j] += dst[j - soff];
1111 if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) {
1112 dst = p->data[plane];
1113 for (i = 0; i < s->height; i++) {
1114 for (j = 0; j < p->linesize[plane]; j++)
1115 dst[j] = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255) - dst[j];
1121 if (s->planar && s->bppcount > 2) {
1122 FFSWAP(uint8_t*, p->data[0], p->data[2]);
1123 FFSWAP(int, p->linesize[0], p->linesize[2]);
1124 FFSWAP(uint8_t*, p->data[0], p->data[1]);
1125 FFSWAP(int, p->linesize[0], p->linesize[1]);
1133 static av_cold int tiff_init(AVCodecContext *avctx)
1135 TiffContext *s = avctx->priv_data;
1140 ff_lzw_decode_open(&s->lzw);
1141 ff_ccitt_unpack_init();
1146 static av_cold int tiff_end(AVCodecContext *avctx)
1148 TiffContext *const s = avctx->priv_data;
1152 ff_lzw_decode_close(&s->lzw);
1153 av_freep(&s->deinvert_buf);
1157 AVCodec ff_tiff_decoder = {
1159 .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
1160 .type = AVMEDIA_TYPE_VIDEO,
1161 .id = AV_CODEC_ID_TIFF,
1162 .priv_data_size = sizeof(TiffContext),
1165 .decode = decode_frame,
1166 .init_thread_copy = ONLY_IF_THREADS_ENABLED(tiff_init),
1167 .capabilities = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS,