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;
64 int strips, rps, sstype;
66 int stripsizesoff, stripsize, stripoff, strippos;
69 uint8_t *deinvert_buf;
70 int deinvert_buf_size;
72 unsigned int yuv_line_size;
78 static void free_geotags(TiffContext *const s)
81 for (i = 0; i < s->geotag_count; i++) {
82 if (s->geotags[i].val)
83 av_freep(&s->geotags[i].val);
85 av_freep(&s->geotags);
89 #define RET_GEOKEY(TYPE, array, element)\
90 if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
91 key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_name_type_map))\
92 return ff_tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].element;
94 static const char *get_geokey_name(int key)
96 RET_GEOKEY(VERT, vert, name);
97 RET_GEOKEY(PROJ, proj, name);
98 RET_GEOKEY(GEOG, geog, name);
99 RET_GEOKEY(CONF, conf, name);
104 static int get_geokey_type(int key)
106 RET_GEOKEY(VERT, vert, type);
107 RET_GEOKEY(PROJ, proj, type);
108 RET_GEOKEY(GEOG, geog, type);
109 RET_GEOKEY(CONF, conf, type);
111 return AVERROR_INVALIDDATA;
114 static int cmp_id_key(const void *id, const void *k)
116 return *(const int*)id - ((const TiffGeoTagKeyName*)k)->key;
119 static const char *search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
121 TiffGeoTagKeyName *r = bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key);
128 static char *get_geokey_val(int key, int val)
132 if (val == TIFF_GEO_KEY_UNDEFINED)
133 return av_strdup("undefined");
134 if (val == TIFF_GEO_KEY_USER_DEFINED)
135 return av_strdup("User-Defined");
137 #define RET_GEOKEY_VAL(TYPE, array)\
138 if (val >= TIFF_##TYPE##_OFFSET &&\
139 val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_codes))\
140 return av_strdup(ff_tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET]);
143 case TIFF_GT_MODEL_TYPE_GEOKEY:
144 RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
146 case TIFF_GT_RASTER_TYPE_GEOKEY:
147 RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
149 case TIFF_GEOG_LINEAR_UNITS_GEOKEY:
150 case TIFF_PROJ_LINEAR_UNITS_GEOKEY:
151 case TIFF_VERTICAL_UNITS_GEOKEY:
152 RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
154 case TIFF_GEOG_ANGULAR_UNITS_GEOKEY:
155 case TIFF_GEOG_AZIMUTH_UNITS_GEOKEY:
156 RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
158 case TIFF_GEOGRAPHIC_TYPE_GEOKEY:
159 RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
160 RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
162 case TIFF_GEOG_GEODETIC_DATUM_GEOKEY:
163 RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
164 RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
166 case TIFF_GEOG_ELLIPSOID_GEOKEY:
167 RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
169 case TIFF_GEOG_PRIME_MERIDIAN_GEOKEY:
170 RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
172 case TIFF_PROJECTED_CS_TYPE_GEOKEY:
173 ap = av_strdup(search_keyval(ff_tiff_proj_cs_type_codes, FF_ARRAY_ELEMS(ff_tiff_proj_cs_type_codes), val));
176 case TIFF_PROJECTION_GEOKEY:
177 ap = av_strdup(search_keyval(ff_tiff_projection_codes, FF_ARRAY_ELEMS(ff_tiff_projection_codes), val));
180 case TIFF_PROJ_COORD_TRANS_GEOKEY:
181 RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
183 case TIFF_VERTICAL_CS_TYPE_GEOKEY:
184 RET_GEOKEY_VAL(VERT_CS, vert_cs);
185 RET_GEOKEY_VAL(ORTHO_VERT_CS, ortho_vert_cs);
192 snprintf(ap, 14, "Unknown-%d", val);
196 static char *doubles2str(double *dp, int count, const char *sep)
200 uint64_t component_len;
201 if (!sep) sep = ", ";
202 component_len = 24LL + strlen(sep);
203 if (count >= (INT_MAX - 1)/component_len)
205 ap = av_malloc(component_len * count + 1);
210 for (i = 0; i < count; i++) {
211 unsigned l = snprintf(ap, component_len, "%.15g%s", dp[i], sep);
212 if(l >= component_len) {
218 ap0[strlen(ap0) - strlen(sep)] = '\0';
222 static int add_metadata(int count, int type,
223 const char *name, const char *sep, TiffContext *s, AVFrame *frame)
226 case TIFF_DOUBLE: return ff_tadd_doubles_metadata(count, name, sep, &s->gb, s->le, avpriv_frame_get_metadatap(frame));
227 case TIFF_SHORT : return ff_tadd_shorts_metadata(count, name, sep, &s->gb, s->le, 0, avpriv_frame_get_metadatap(frame));
228 case TIFF_STRING: return ff_tadd_string_metadata(count, name, &s->gb, s->le, avpriv_frame_get_metadatap(frame));
229 default : return AVERROR_INVALIDDATA;
233 static void av_always_inline horizontal_fill(unsigned int bpp, uint8_t* dst,
234 int usePtr, const uint8_t *src,
235 uint8_t c, int width, int offset)
239 while (--width >= 0) {
240 dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
241 dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
242 dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
243 dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
244 dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
245 dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
246 dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
247 dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
251 while (--width >= 0) {
252 dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
253 dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
254 dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
255 dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
259 while (--width >= 0) {
260 dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
261 dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
266 memcpy(dst + offset, src, width);
268 memset(dst + offset, c, width);
273 static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
277 av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
278 if (!s->deinvert_buf)
279 return AVERROR(ENOMEM);
280 for (i = 0; i < size; i++)
281 s->deinvert_buf[i] = ff_reverse[src[i]];
287 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
290 z_stream zstream = { 0 };
293 zstream.next_in = (uint8_t *)src;
294 zstream.avail_in = size;
295 zstream.next_out = dst;
296 zstream.avail_out = *len;
297 zret = inflateInit(&zstream);
299 av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
302 zret = inflate(&zstream, Z_SYNC_FLUSH);
303 inflateEnd(&zstream);
304 *len = zstream.total_out;
305 return zret == Z_STREAM_END ? Z_OK : zret;
308 static int tiff_unpack_zlib(TiffContext *s, uint8_t *dst, int stride,
309 const uint8_t *src, int size,
310 int width, int lines)
313 unsigned long outlen;
315 outlen = width * lines;
316 zbuf = av_malloc(outlen);
318 return AVERROR(ENOMEM);
320 if ((ret = deinvert_buffer(s, src, size)) < 0) {
324 src = s->deinvert_buf;
326 ret = tiff_uncompress(zbuf, &outlen, src, size);
328 av_log(s->avctx, AV_LOG_ERROR,
329 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
330 (unsigned long)width * lines, ret);
332 return AVERROR_UNKNOWN;
335 for (line = 0; line < lines; line++) {
336 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
337 horizontal_fill(s->bpp, dst, 1, src, 0, width, 0);
339 memcpy(dst, src, width);
350 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
351 const uint8_t *src, int size, int width, int lines)
355 uint8_t *src2 = av_malloc((unsigned)size +
356 FF_INPUT_BUFFER_PADDING_SIZE);
359 av_log(s->avctx, AV_LOG_ERROR,
360 "Error allocating temporary buffer\n");
361 return AVERROR(ENOMEM);
363 if (s->fax_opts & 2) {
364 avpriv_request_sample(s->avctx, "Uncompressed fax mode");
366 return AVERROR_PATCHWELCOME;
368 if (!s->fill_order) {
369 memcpy(src2, src, size);
371 for (i = 0; i < size; i++)
372 src2[i] = ff_reverse[src[i]];
374 memset(src2 + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
375 ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
376 s->compr, s->fax_opts);
377 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
378 for (line = 0; line < lines; line++) {
379 horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
386 static void unpack_yuv(TiffContext *s, AVFrame *p,
387 const uint8_t *src, int lnum)
390 int w = (s->width - 1) / s->subsampling[0] + 1;
391 uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
392 uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
393 if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
394 for (i = 0; i < w; i++) {
395 for (j = 0; j < s->subsampling[1]; j++)
396 for (k = 0; k < s->subsampling[0]; k++)
397 p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
398 FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++;
403 for (i = 0; i < w; i++) {
404 for (j = 0; j < s->subsampling[1]; j++)
405 for (k = 0; k < s->subsampling[0]; k++)
406 p->data[0][(lnum + j) * p->linesize[0] +
407 i * s->subsampling[0] + k] = *src++;
415 static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
416 const uint8_t *src, int size, int strip_start, int lines)
419 int c, line, pixels, code, ret;
420 const uint8_t *ssrc = src;
421 int width = ((s->width * s->bpp) + 7) >> 3;
422 int is_yuv = s->photometric == TIFF_PHOTOMETRIC_YCBCR;
425 width /= s->bppcount;
428 return AVERROR_INVALIDDATA;
431 int bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
432 s->subsampling[0] * s->subsampling[1] + 7) >> 3;
433 av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row);
434 if (s->yuv_line == NULL) {
435 av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
436 return AVERROR(ENOMEM);
440 width = s->width * s->subsampling[1] + 2*(s->width / s->subsampling[0]);
441 av_assert0(width <= bytes_per_row);
442 av_assert0(s->bpp == 24);
445 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
447 av_log(s->avctx, AV_LOG_ERROR, "YUV deflate is unsupported");
448 return AVERROR_PATCHWELCOME;
451 return tiff_unpack_zlib(s, dst, stride, src, size, width, lines);
453 av_log(s->avctx, AV_LOG_ERROR,
454 "zlib support not enabled, "
455 "deflate compression not supported\n");
456 return AVERROR(ENOSYS);
459 if (s->compr == TIFF_LZW) {
461 if ((ret = deinvert_buffer(s, src, size)) < 0)
463 ssrc = src = s->deinvert_buf;
465 if (size > 1 && !src[0] && (src[1]&1)) {
466 av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
468 if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
469 av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
472 for (line = 0; line < lines; line++) {
473 pixels = ff_lzw_decode(s->lzw, dst, width);
474 if (pixels < width) {
475 av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
477 return AVERROR_INVALIDDATA;
479 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
480 horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
482 unpack_yuv(s, p, dst, strip_start + line);
483 line += s->subsampling[1] - 1;
489 if (s->compr == TIFF_CCITT_RLE ||
490 s->compr == TIFF_G3 ||
491 s->compr == TIFF_G4) {
493 return AVERROR_INVALIDDATA;
495 return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
498 bytestream2_init(&s->gb, src, size);
499 bytestream2_init_writer(&pb, dst, is_yuv ? s->yuv_line_size : (stride * lines));
501 for (line = 0; line < lines; line++) {
502 if (src - ssrc > size) {
503 av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
504 return AVERROR_INVALIDDATA;
507 if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb))
509 bytestream2_seek_p(&pb, stride * line, SEEK_SET);
512 if (ssrc + size - src < width)
513 return AVERROR_INVALIDDATA;
515 if (!s->fill_order) {
516 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
517 dst, 1, src, 0, width, 0);
520 for (i = 0; i < width; i++)
521 dst[i] = ff_reverse[src[i]];
526 for (pixels = 0; pixels < width;) {
527 if (ssrc + size - src < 2) {
528 av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
529 return AVERROR_INVALIDDATA;
531 code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
534 if (pixels + code > width ||
535 ssrc + size - src < code) {
536 av_log(s->avctx, AV_LOG_ERROR,
537 "Copy went out of bounds\n");
538 return AVERROR_INVALIDDATA;
540 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
541 dst, 1, src, 0, code, pixels);
544 } else if (code != -128) { // -127..-1
546 if (pixels + code > width) {
547 av_log(s->avctx, AV_LOG_ERROR,
548 "Run went out of bounds\n");
549 return AVERROR_INVALIDDATA;
552 horizontal_fill(s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
553 dst, 0, NULL, c, code, pixels);
559 for (i = 0; i < width; i++)
560 dst[i] = ff_reverse[dst[i]];
565 unpack_yuv(s, p, dst, strip_start + line);
566 line += s->subsampling[1] - 1;
573 static int init_image(TiffContext *s, ThreadFrame *frame)
578 switch (s->planar * 1000 + s->bpp * 10 + s->bppcount) {
580 if (!s->palette_is_set) {
581 s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
587 s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
590 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
591 if (s->subsampling[0] == 1 && s->subsampling[1] == 1) {
592 s->avctx->pix_fmt = AV_PIX_FMT_YUV444P;
593 } else if (s->subsampling[0] == 2 && s->subsampling[1] == 1) {
594 s->avctx->pix_fmt = AV_PIX_FMT_YUV422P;
595 } else if (s->subsampling[0] == 4 && s->subsampling[1] == 1) {
596 s->avctx->pix_fmt = AV_PIX_FMT_YUV411P;
597 } else if (s->subsampling[0] == 1 && s->subsampling[1] == 2) {
598 s->avctx->pix_fmt = AV_PIX_FMT_YUV440P;
599 } else if (s->subsampling[0] == 2 && s->subsampling[1] == 2) {
600 s->avctx->pix_fmt = AV_PIX_FMT_YUV420P;
601 } else if (s->subsampling[0] == 4 && s->subsampling[1] == 4) {
602 s->avctx->pix_fmt = AV_PIX_FMT_YUV410P;
604 av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr subsampling\n");
605 return AVERROR_PATCHWELCOME;
608 s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
611 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
614 s->avctx->pix_fmt = AV_PIX_FMT_GRAY8A;
617 s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
620 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
623 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
626 s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
629 s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
632 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE;
635 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE;
638 av_log(s->avctx, AV_LOG_ERROR,
639 "This format is not supported (bpp=%d, bppcount=%d)\n",
640 s->bpp, s->bppcount);
641 return AVERROR_INVALIDDATA;
643 if (s->width != s->avctx->width || s->height != s->avctx->height) {
644 ret = ff_set_dimensions(s->avctx, s->width, s->height);
648 if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
650 if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
651 if (s->palette_is_set) {
652 memcpy(frame->f->data[1], s->palette, sizeof(s->palette));
654 /* make default grayscale pal */
655 pal = (uint32_t *) frame->f->data[1];
656 for (i = 0; i < 1<<s->bpp; i++)
657 pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
663 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
665 int offset = tag == TIFF_YRES ? 2 : 0;
666 s->res[offset++] = num;
667 s->res[offset] = den;
668 if (s->res[0] && s->res[1] && s->res[2] && s->res[3])
669 av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den,
670 s->res[2] * (uint64_t)s->res[1], s->res[0] * (uint64_t)s->res[3], INT32_MAX);
673 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
675 unsigned tag, type, count, off, value = 0, value2 = 0;
681 ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
686 off = bytestream2_tell(&s->gb);
692 value = ff_tget(&s->gb, type, s->le);
695 value = ff_tget(&s->gb, TIFF_LONG, s->le);
696 value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
717 av_log(s->avctx, AV_LOG_ERROR,
718 "This format is not supported (bpp=%d, %d components)\n",
720 return AVERROR_INVALIDDATA;
730 if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
731 return AVERROR_INVALIDDATA;
732 for (i = 0; i < count; i++)
733 s->bpp += ff_tget(&s->gb, type, s->le);
740 case TIFF_SAMPLES_PER_PIXEL:
742 av_log(s->avctx, AV_LOG_ERROR,
743 "Samples per pixel requires a single value, many provided\n");
744 return AVERROR_INVALIDDATA;
747 av_log(s->avctx, AV_LOG_ERROR,
748 "Samples per pixel %d is too large\n", value);
749 return AVERROR_INVALIDDATA;
751 if (s->bppcount == 1)
769 case TIFF_ADOBE_DEFLATE:
773 av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
774 return AVERROR(ENOSYS);
778 avpriv_report_missing_feature(s->avctx, "JPEG compression");
779 return AVERROR_PATCHWELCOME;
781 av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
783 return AVERROR_INVALIDDATA;
786 case TIFF_ROWSPERSTRIP:
787 if (!value || (type == TIFF_LONG && value == UINT_MAX))
789 s->rps = FFMIN(value, s->height);
791 case TIFF_STRIP_OFFS:
802 case TIFF_STRIP_SIZE:
804 s->stripsizesoff = 0;
805 s->stripsize = value;
808 s->stripsizesoff = off;
815 set_sar(s, tag, value, value2);
817 case TIFF_TILE_BYTE_COUNTS:
818 case TIFF_TILE_LENGTH:
819 case TIFF_TILE_OFFSETS:
820 case TIFF_TILE_WIDTH:
821 av_log(s->avctx, AV_LOG_ERROR, "Tiled images are not supported\n");
822 return AVERROR_PATCHWELCOME;
825 s->predictor = value;
827 case TIFF_PHOTOMETRIC:
829 case TIFF_PHOTOMETRIC_WHITE_IS_ZERO:
830 case TIFF_PHOTOMETRIC_BLACK_IS_ZERO:
831 case TIFF_PHOTOMETRIC_RGB:
832 case TIFF_PHOTOMETRIC_PALETTE:
833 case TIFF_PHOTOMETRIC_YCBCR:
834 s->photometric = value;
836 case TIFF_PHOTOMETRIC_ALPHA_MASK:
837 case TIFF_PHOTOMETRIC_SEPARATED:
838 case TIFF_PHOTOMETRIC_CIE_LAB:
839 case TIFF_PHOTOMETRIC_ICC_LAB:
840 case TIFF_PHOTOMETRIC_ITU_LAB:
841 case TIFF_PHOTOMETRIC_CFA:
842 case TIFF_PHOTOMETRIC_LOG_L:
843 case TIFF_PHOTOMETRIC_LOG_LUV:
844 case TIFF_PHOTOMETRIC_LINEAR_RAW:
845 avpriv_report_missing_feature(s->avctx,
846 "PhotometricInterpretation 0x%04X",
848 return AVERROR_PATCHWELCOME;
850 av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
852 return AVERROR_INVALIDDATA;
855 case TIFF_FILL_ORDER:
856 if (value < 1 || value > 2) {
857 av_log(s->avctx, AV_LOG_ERROR,
858 "Unknown FillOrder value %d, trying default one\n", value);
861 s->fill_order = value - 1;
864 GetByteContext pal_gb[3];
865 off = type_sizes[type];
866 if (count / 3 > 256 ||
867 bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
868 return AVERROR_INVALIDDATA;
870 pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
871 bytestream2_skip(&pal_gb[1], count / 3 * off);
872 bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
874 off = (type_sizes[type] - 1) << 3;
875 for (i = 0; i < count / 3; i++) {
876 uint32_t p = 0xFF000000;
877 p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
878 p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
879 p |= ff_tget(&pal_gb[2], type, s->le) >> off;
882 s->palette_is_set = 1;
886 s->planar = value == 2;
888 case TIFF_YCBCR_SUBSAMPLING:
890 av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n");
891 return AVERROR_INVALIDDATA;
893 for (i = 0; i < count; i++)
894 s->subsampling[i] = ff_tget(&s->gb, type, s->le);
897 if (s->compr == TIFF_G3)
901 if (s->compr == TIFF_G4)
904 #define ADD_METADATA(count, name, sep)\
905 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
906 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
909 case TIFF_MODEL_PIXEL_SCALE:
910 ADD_METADATA(count, "ModelPixelScaleTag", NULL);
912 case TIFF_MODEL_TRANSFORMATION:
913 ADD_METADATA(count, "ModelTransformationTag", NULL);
915 case TIFF_MODEL_TIEPOINT:
916 ADD_METADATA(count, "ModelTiepointTag", NULL);
918 case TIFF_GEO_KEY_DIRECTORY:
919 ADD_METADATA(1, "GeoTIFF_Version", NULL);
920 ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
921 s->geotag_count = ff_tget_short(&s->gb, s->le);
922 if (s->geotag_count > count / 4 - 1) {
923 s->geotag_count = count / 4 - 1;
924 av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
926 if (bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4) {
930 s->geotags = av_mallocz_array(s->geotag_count, sizeof(TiffGeoTag));
932 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
936 for (i = 0; i < s->geotag_count; i++) {
937 s->geotags[i].key = ff_tget_short(&s->gb, s->le);
938 s->geotags[i].type = ff_tget_short(&s->gb, s->le);
939 s->geotags[i].count = ff_tget_short(&s->gb, s->le);
941 if (!s->geotags[i].type)
942 s->geotags[i].val = get_geokey_val(s->geotags[i].key, ff_tget_short(&s->gb, s->le));
944 s->geotags[i].offset = ff_tget_short(&s->gb, s->le);
947 case TIFF_GEO_DOUBLE_PARAMS:
948 if (count >= INT_MAX / sizeof(int64_t))
949 return AVERROR_INVALIDDATA;
950 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
951 return AVERROR_INVALIDDATA;
952 dp = av_malloc_array(count, sizeof(double));
954 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
957 for (i = 0; i < count; i++)
958 dp[i] = ff_tget_double(&s->gb, s->le);
959 for (i = 0; i < s->geotag_count; i++) {
960 if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
961 if (s->geotags[i].count == 0
962 || s->geotags[i].offset + s->geotags[i].count > count) {
963 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
965 char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
967 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
969 return AVERROR(ENOMEM);
971 s->geotags[i].val = ap;
977 case TIFF_GEO_ASCII_PARAMS:
978 pos = bytestream2_tell(&s->gb);
979 for (i = 0; i < s->geotag_count; i++) {
980 if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
981 if (s->geotags[i].count == 0
982 || s->geotags[i].offset + s->geotags[i].count > count) {
983 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
987 bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
988 if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
989 return AVERROR_INVALIDDATA;
990 ap = av_malloc(s->geotags[i].count);
992 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
993 return AVERROR(ENOMEM);
995 bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
996 ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
997 s->geotags[i].val = ap;
1003 ADD_METADATA(count, "artist", NULL);
1005 case TIFF_COPYRIGHT:
1006 ADD_METADATA(count, "copyright", NULL);
1009 ADD_METADATA(count, "date", NULL);
1011 case TIFF_DOCUMENT_NAME:
1012 ADD_METADATA(count, "document_name", NULL);
1014 case TIFF_HOST_COMPUTER:
1015 ADD_METADATA(count, "computer", NULL);
1017 case TIFF_IMAGE_DESCRIPTION:
1018 ADD_METADATA(count, "description", NULL);
1021 ADD_METADATA(count, "make", NULL);
1024 ADD_METADATA(count, "model", NULL);
1026 case TIFF_PAGE_NAME:
1027 ADD_METADATA(count, "page_name", NULL);
1029 case TIFF_PAGE_NUMBER:
1030 ADD_METADATA(count, "page_number", " / ");
1032 case TIFF_SOFTWARE_NAME:
1033 ADD_METADATA(count, "software", NULL);
1036 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1037 av_log(s->avctx, AV_LOG_ERROR,
1038 "Unknown or unsupported tag %d/0X%0X\n",
1040 return AVERROR_INVALIDDATA;
1044 bytestream2_seek(&s->gb, start, SEEK_SET);
1048 static int decode_frame(AVCodecContext *avctx,
1049 void *data, int *got_frame, AVPacket *avpkt)
1051 TiffContext *const s = avctx->priv_data;
1052 AVFrame *const p = data;
1053 ThreadFrame frame = { .f = data };
1055 int le, ret, plane, planes;
1056 int i, j, entries, stride;
1057 unsigned soff, ssize;
1059 GetByteContext stripsizes;
1060 GetByteContext stripdata;
1062 bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1064 // parse image header
1065 if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
1066 av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
1068 } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1069 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1070 return AVERROR_INVALIDDATA;
1073 // TIFF_BPP is not a required tag and defaults to 1
1074 s->bppcount = s->bpp = 1;
1075 s->photometric = TIFF_PHOTOMETRIC_NONE;
1076 s->compr = TIFF_RAW;
1080 // Reset these offsets so we can tell if they were set this frame
1081 s->stripsizesoff = s->strippos = 0;
1082 /* parse image file directory */
1083 bytestream2_seek(&s->gb, off, SEEK_SET);
1084 entries = ff_tget_short(&s->gb, le);
1085 if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1086 return AVERROR_INVALIDDATA;
1087 for (i = 0; i < entries; i++) {
1088 if ((ret = tiff_decode_tag(s, p)) < 0)
1092 for (i = 0; i<s->geotag_count; i++) {
1093 const char *keyname = get_geokey_name(s->geotags[i].key);
1095 av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
1098 if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
1099 av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
1102 ret = av_dict_set(avpriv_frame_get_metadatap(p), keyname, s->geotags[i].val, 0);
1104 av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
1109 if (!s->strippos && !s->stripoff) {
1110 av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
1111 return AVERROR_INVALIDDATA;
1113 /* now we have the data and may start decoding */
1114 if ((ret = init_image(s, &frame)) < 0)
1117 if (s->strips == 1 && !s->stripsize) {
1118 av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
1119 s->stripsize = avpkt->size - s->stripoff;
1122 if (s->stripsizesoff) {
1123 if (s->stripsizesoff >= (unsigned)avpkt->size)
1124 return AVERROR_INVALIDDATA;
1125 bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
1126 avpkt->size - s->stripsizesoff);
1129 if (s->strippos >= (unsigned)avpkt->size)
1130 return AVERROR_INVALIDDATA;
1131 bytestream2_init(&stripdata, avpkt->data + s->strippos,
1132 avpkt->size - s->strippos);
1136 av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1137 return AVERROR_INVALIDDATA;
1140 planes = s->planar ? s->bppcount : 1;
1141 for (plane = 0; plane < planes; plane++) {
1142 stride = p->linesize[plane];
1143 dst = p->data[plane];
1144 for (i = 0; i < s->height; i += s->rps) {
1145 if (s->stripsizesoff)
1146 ssize = ff_tget(&stripsizes, s->sstype, le);
1148 ssize = s->stripsize;
1151 soff = ff_tget(&stripdata, s->sot, le);
1155 if (soff > avpkt->size || ssize > avpkt->size - soff) {
1156 av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
1157 return AVERROR_INVALIDDATA;
1159 if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i,
1160 FFMIN(s->rps, s->height - i))) < 0) {
1161 if (avctx->err_recognition & AV_EF_EXPLODE)
1165 dst += s->rps * stride;
1167 if (s->predictor == 2) {
1168 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1169 av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported");
1170 return AVERROR_PATCHWELCOME;
1172 dst = p->data[plane];
1175 soff = FFMAX(soff / s->bppcount, 1);
1176 ssize = s->width * soff;
1177 if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
1178 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
1179 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
1180 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
1181 for (i = 0; i < s->height; i++) {
1182 for (j = soff; j < ssize; j += 2)
1183 AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
1186 } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
1187 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
1188 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
1189 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
1190 for (i = 0; i < s->height; i++) {
1191 for (j = soff; j < ssize; j += 2)
1192 AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
1196 for (i = 0; i < s->height; i++) {
1197 for (j = soff; j < ssize; j++)
1198 dst[j] += dst[j - soff];
1204 if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) {
1205 dst = p->data[plane];
1206 for (i = 0; i < s->height; i++) {
1207 for (j = 0; j < p->linesize[plane]; j++)
1208 dst[j] = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255) - dst[j];
1214 if (s->planar && s->bppcount > 2) {
1215 FFSWAP(uint8_t*, p->data[0], p->data[2]);
1216 FFSWAP(int, p->linesize[0], p->linesize[2]);
1217 FFSWAP(uint8_t*, p->data[0], p->data[1]);
1218 FFSWAP(int, p->linesize[0], p->linesize[1]);
1226 static av_cold int tiff_init(AVCodecContext *avctx)
1228 TiffContext *s = avctx->priv_data;
1233 s->subsampling[1] = 1;
1235 ff_lzw_decode_open(&s->lzw);
1236 ff_ccitt_unpack_init();
1241 static av_cold int tiff_end(AVCodecContext *avctx)
1243 TiffContext *const s = avctx->priv_data;
1247 ff_lzw_decode_close(&s->lzw);
1248 av_freep(&s->deinvert_buf);
1252 AVCodec ff_tiff_decoder = {
1254 .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
1255 .type = AVMEDIA_TYPE_VIDEO,
1256 .id = AV_CODEC_ID_TIFF,
1257 .priv_data_size = sizeof(TiffContext),
1260 .decode = decode_frame,
1261 .init_thread_copy = ONLY_IF_THREADS_ENABLED(tiff_init),
1262 .capabilities = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS,