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/error.h"
39 #include "libavutil/intreadwrite.h"
40 #include "libavutil/imgutils.h"
41 #include "libavutil/opt.h"
43 #include "bytestream.h"
49 #include "tiff_data.h"
54 typedef struct TiffContext {
56 AVCodecContext *avctx;
59 /* JPEG decoding for DNG */
60 AVCodecContext *avctx_mjpeg; // wrapper context for MJPEG
61 AVFrame *jpgframe; // decoded JPEG tile
67 enum TiffType tiff_type;
69 unsigned int bpp, bppcount;
70 uint32_t palette[256];
74 enum TiffPhotometric photometric;
87 const uint16_t *dng_lut; // Pointer to DNG linearization table
92 int strips, rps, sstype;
94 int stripsizesoff, stripsize, stripoff, strippos;
99 int tile_byte_counts_offset, tile_offsets_offset;
100 int tile_width, tile_length;
105 uint8_t *deinvert_buf;
106 int deinvert_buf_size;
108 unsigned int yuv_line_size;
110 unsigned int fax_buffer_size;
116 static void tiff_set_type(TiffContext *s, enum TiffType tiff_type) {
117 if (s->tiff_type < tiff_type) // Prioritize higher-valued entries
118 s->tiff_type = tiff_type;
121 static void free_geotags(TiffContext *const s)
124 for (i = 0; i < s->geotag_count; i++) {
125 if (s->geotags[i].val)
126 av_freep(&s->geotags[i].val);
128 av_freep(&s->geotags);
132 #define RET_GEOKEY(TYPE, array, element)\
133 if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
134 key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_name_type_map))\
135 return ff_tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].element;
137 static const char *get_geokey_name(int key)
139 RET_GEOKEY(VERT, vert, name);
140 RET_GEOKEY(PROJ, proj, name);
141 RET_GEOKEY(GEOG, geog, name);
142 RET_GEOKEY(CONF, conf, name);
147 static int get_geokey_type(int key)
149 RET_GEOKEY(VERT, vert, type);
150 RET_GEOKEY(PROJ, proj, type);
151 RET_GEOKEY(GEOG, geog, type);
152 RET_GEOKEY(CONF, conf, type);
154 return AVERROR_INVALIDDATA;
157 static int cmp_id_key(const void *id, const void *k)
159 return *(const int*)id - ((const TiffGeoTagKeyName*)k)->key;
162 static const char *search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
164 TiffGeoTagKeyName *r = bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key);
171 static char *get_geokey_val(int key, int val)
175 if (val == TIFF_GEO_KEY_UNDEFINED)
176 return av_strdup("undefined");
177 if (val == TIFF_GEO_KEY_USER_DEFINED)
178 return av_strdup("User-Defined");
180 #define RET_GEOKEY_VAL(TYPE, array)\
181 if (val >= TIFF_##TYPE##_OFFSET &&\
182 val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_codes))\
183 return av_strdup(ff_tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET]);
186 case TIFF_GT_MODEL_TYPE_GEOKEY:
187 RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type);
189 case TIFF_GT_RASTER_TYPE_GEOKEY:
190 RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type);
192 case TIFF_GEOG_LINEAR_UNITS_GEOKEY:
193 case TIFF_PROJ_LINEAR_UNITS_GEOKEY:
194 case TIFF_VERTICAL_UNITS_GEOKEY:
195 RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit);
197 case TIFF_GEOG_ANGULAR_UNITS_GEOKEY:
198 case TIFF_GEOG_AZIMUTH_UNITS_GEOKEY:
199 RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit);
201 case TIFF_GEOGRAPHIC_TYPE_GEOKEY:
202 RET_GEOKEY_VAL(GCS_TYPE, gcs_type);
203 RET_GEOKEY_VAL(GCSE_TYPE, gcse_type);
205 case TIFF_GEOG_GEODETIC_DATUM_GEOKEY:
206 RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum);
207 RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e);
209 case TIFF_GEOG_ELLIPSOID_GEOKEY:
210 RET_GEOKEY_VAL(ELLIPSOID, ellipsoid);
212 case TIFF_GEOG_PRIME_MERIDIAN_GEOKEY:
213 RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian);
215 case TIFF_PROJECTED_CS_TYPE_GEOKEY:
216 ap = av_strdup(search_keyval(ff_tiff_proj_cs_type_codes, FF_ARRAY_ELEMS(ff_tiff_proj_cs_type_codes), val));
219 case TIFF_PROJECTION_GEOKEY:
220 ap = av_strdup(search_keyval(ff_tiff_projection_codes, FF_ARRAY_ELEMS(ff_tiff_projection_codes), val));
223 case TIFF_PROJ_COORD_TRANS_GEOKEY:
224 RET_GEOKEY_VAL(COORD_TRANS, coord_trans);
226 case TIFF_VERTICAL_CS_TYPE_GEOKEY:
227 RET_GEOKEY_VAL(VERT_CS, vert_cs);
228 RET_GEOKEY_VAL(ORTHO_VERT_CS, ortho_vert_cs);
235 snprintf(ap, 14, "Unknown-%d", val);
239 static char *doubles2str(double *dp, int count, const char *sep)
243 uint64_t component_len;
244 if (!sep) sep = ", ";
245 component_len = 24LL + strlen(sep);
246 if (count >= (INT_MAX - 1)/component_len)
248 ap = av_malloc(component_len * count + 1);
253 for (i = 0; i < count; i++) {
254 unsigned l = snprintf(ap, component_len, "%.15g%s", dp[i], sep);
255 if(l >= component_len) {
261 ap0[strlen(ap0) - strlen(sep)] = '\0';
265 static int add_metadata(int count, int type,
266 const char *name, const char *sep, TiffContext *s, AVFrame *frame)
269 case TIFF_DOUBLE: return ff_tadd_doubles_metadata(count, name, sep, &s->gb, s->le, &frame->metadata);
270 case TIFF_SHORT : return ff_tadd_shorts_metadata(count, name, sep, &s->gb, s->le, 0, &frame->metadata);
271 case TIFF_STRING: return ff_tadd_string_metadata(count, name, &s->gb, s->le, &frame->metadata);
272 default : return AVERROR_INVALIDDATA;
276 static void av_always_inline dng_blit(TiffContext *s, uint8_t *dst, int dst_stride,
277 const uint8_t *src, int src_stride, int width, int height, int is_u16);
279 static void av_always_inline horizontal_fill(TiffContext *s,
280 unsigned int bpp, uint8_t* dst,
281 int usePtr, const uint8_t *src,
282 uint8_t c, int width, int offset)
286 while (--width >= 0) {
287 dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
288 dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
289 dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
290 dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
291 dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
292 dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
293 dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
294 dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
298 while (--width >= 0) {
299 dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
300 dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
301 dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
302 dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
306 while (--width >= 0) {
307 dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
308 dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
312 uint16_t *dst16 = (uint16_t *)dst;
314 init_get_bits8(&gb, src, width);
315 for (int i = 0; i < s->width; i++) {
316 dst16[i] = get_bits(&gb, 12) << 4;
322 memcpy(dst + offset, src, width);
324 memset(dst + offset, c, width);
329 static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
333 av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
334 if (!s->deinvert_buf)
335 return AVERROR(ENOMEM);
336 for (i = 0; i < size; i++)
337 s->deinvert_buf[i] = ff_reverse[src[i]];
342 static void unpack_gray(TiffContext *s, AVFrame *p,
343 const uint8_t *src, int lnum, int width, int bpp)
346 uint16_t *dst = (uint16_t *)(p->data[0] + lnum * p->linesize[0]);
348 init_get_bits8(&gb, src, width);
350 for (int i = 0; i < s->width; i++) {
351 dst[i] = get_bits(&gb, bpp);
355 static void unpack_yuv(TiffContext *s, AVFrame *p,
356 const uint8_t *src, int lnum)
359 int w = (s->width - 1) / s->subsampling[0] + 1;
360 uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
361 uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
362 if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
363 for (i = 0; i < w; i++) {
364 for (j = 0; j < s->subsampling[1]; j++)
365 for (k = 0; k < s->subsampling[0]; k++)
366 p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
367 FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++;
372 for (i = 0; i < w; i++) {
373 for (j = 0; j < s->subsampling[1]; j++)
374 for (k = 0; k < s->subsampling[0]; k++)
375 p->data[0][(lnum + j) * p->linesize[0] +
376 i * s->subsampling[0] + k] = *src++;
384 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
387 z_stream zstream = { 0 };
390 zstream.next_in = (uint8_t *)src;
391 zstream.avail_in = size;
392 zstream.next_out = dst;
393 zstream.avail_out = *len;
394 zret = inflateInit(&zstream);
396 av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
399 zret = inflate(&zstream, Z_SYNC_FLUSH);
400 inflateEnd(&zstream);
401 *len = zstream.total_out;
402 return zret == Z_STREAM_END ? Z_OK : zret;
405 static int tiff_unpack_zlib(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
406 const uint8_t *src, int size, int width, int lines,
407 int strip_start, int is_yuv)
410 unsigned long outlen;
412 outlen = width * lines;
413 zbuf = av_malloc(outlen);
415 return AVERROR(ENOMEM);
417 if ((ret = deinvert_buffer(s, src, size)) < 0) {
421 src = s->deinvert_buf;
423 ret = tiff_uncompress(zbuf, &outlen, src, size);
425 av_log(s->avctx, AV_LOG_ERROR,
426 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
427 (unsigned long)width * lines, ret);
429 return AVERROR_UNKNOWN;
432 for (line = 0; line < lines; line++) {
433 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
434 horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
436 memcpy(dst, src, width);
439 unpack_yuv(s, p, dst, strip_start + line);
440 line += s->subsampling[1] - 1;
451 static int tiff_uncompress_lzma(uint8_t *dst, uint64_t *len, const uint8_t *src,
454 lzma_stream stream = LZMA_STREAM_INIT;
457 stream.next_in = (uint8_t *)src;
458 stream.avail_in = size;
459 stream.next_out = dst;
460 stream.avail_out = *len;
461 ret = lzma_stream_decoder(&stream, UINT64_MAX, 0);
462 if (ret != LZMA_OK) {
463 av_log(NULL, AV_LOG_ERROR, "LZMA init error: %d\n", ret);
466 ret = lzma_code(&stream, LZMA_RUN);
468 *len = stream.total_out;
469 return ret == LZMA_STREAM_END ? LZMA_OK : ret;
472 static int tiff_unpack_lzma(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
473 const uint8_t *src, int size, int width, int lines,
474 int strip_start, int is_yuv)
476 uint64_t outlen = width * (uint64_t)lines;
478 uint8_t *buf = av_malloc(outlen);
480 return AVERROR(ENOMEM);
482 if ((ret = deinvert_buffer(s, src, size)) < 0) {
486 src = s->deinvert_buf;
488 ret = tiff_uncompress_lzma(buf, &outlen, src, size);
489 if (ret != LZMA_OK) {
490 av_log(s->avctx, AV_LOG_ERROR,
491 "Uncompressing failed (%"PRIu64" of %"PRIu64") with error %d\n", outlen,
492 (uint64_t)width * lines, ret);
494 return AVERROR_UNKNOWN;
497 for (line = 0; line < lines; line++) {
498 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
499 horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
501 memcpy(dst, src, width);
504 unpack_yuv(s, p, dst, strip_start + line);
505 line += s->subsampling[1] - 1;
515 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
516 const uint8_t *src, int size, int width, int lines)
522 av_fast_padded_malloc(&s->fax_buffer, &s->fax_buffer_size, size);
523 src2 = s->fax_buffer;
526 av_log(s->avctx, AV_LOG_ERROR,
527 "Error allocating temporary buffer\n");
528 return AVERROR(ENOMEM);
531 if (!s->fill_order) {
532 memcpy(src2, src, size);
534 for (i = 0; i < size; i++)
535 src2[i] = ff_reverse[src[i]];
537 memset(src2 + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
538 ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
539 s->compr, s->fax_opts);
540 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
541 for (line = 0; line < lines; line++) {
542 horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
548 static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
549 const uint8_t *src, int size, int strip_start, int lines)
552 int c, line, pixels, code, ret;
553 const uint8_t *ssrc = src;
554 int width = ((s->width * s->bpp) + 7) >> 3;
555 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(p->format);
556 int is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) &&
557 (desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
558 desc->nb_components >= 3;
561 width /= s->bppcount;
564 return AVERROR_INVALIDDATA;
567 int bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
568 s->subsampling[0] * s->subsampling[1] + 7) >> 3;
569 av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row);
570 if (s->yuv_line == NULL) {
571 av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
572 return AVERROR(ENOMEM);
577 width = (s->width - 1) / s->subsampling[0] + 1;
578 width = width * s->subsampling[0] * s->subsampling[1] + 2*width;
579 av_assert0(width <= bytes_per_row);
580 av_assert0(s->bpp == 24);
583 width = (s->bpp * s->width + 7) >> 3;
585 if (p->format == AV_PIX_FMT_GRAY12) {
586 av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, width);
587 if (s->yuv_line == NULL) {
588 av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
589 return AVERROR(ENOMEM);
595 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
597 return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines,
598 strip_start, is_yuv);
600 av_log(s->avctx, AV_LOG_ERROR,
601 "zlib support not enabled, "
602 "deflate compression not supported\n");
603 return AVERROR(ENOSYS);
606 if (s->compr == TIFF_LZMA) {
608 return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
609 strip_start, is_yuv);
611 av_log(s->avctx, AV_LOG_ERROR,
612 "LZMA support not enabled\n");
613 return AVERROR(ENOSYS);
616 if (s->compr == TIFF_LZW) {
618 if ((ret = deinvert_buffer(s, src, size)) < 0)
620 ssrc = src = s->deinvert_buf;
622 if (size > 1 && !src[0] && (src[1]&1)) {
623 av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
625 if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
626 av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
629 for (line = 0; line < lines; line++) {
630 pixels = ff_lzw_decode(s->lzw, dst, width);
631 if (pixels < width) {
632 av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
634 return AVERROR_INVALIDDATA;
636 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
637 horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
639 unpack_yuv(s, p, dst, strip_start + line);
640 line += s->subsampling[1] - 1;
641 } else if (p->format == AV_PIX_FMT_GRAY12) {
642 unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
648 if (s->compr == TIFF_CCITT_RLE ||
649 s->compr == TIFF_G3 ||
650 s->compr == TIFF_G4) {
651 if (is_yuv || p->format == AV_PIX_FMT_GRAY12)
652 return AVERROR_INVALIDDATA;
654 return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
657 bytestream2_init(&s->gb, src, size);
658 bytestream2_init_writer(&pb, dst, is_yuv ? s->yuv_line_size : (stride * lines));
660 for (line = 0; line < lines; line++) {
661 if (src - ssrc > size) {
662 av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
663 return AVERROR_INVALIDDATA;
666 if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb))
668 bytestream2_seek_p(&pb, stride * line, SEEK_SET);
671 if (ssrc + size - src < width)
672 return AVERROR_INVALIDDATA;
674 if (!s->fill_order) {
675 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 || s->is_bayer),
676 dst, 1, src, 0, width, 0);
679 for (i = 0; i < width; i++)
680 dst[i] = ff_reverse[src[i]];
685 for (pixels = 0; pixels < width;) {
686 if (ssrc + size - src < 2) {
687 av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
688 return AVERROR_INVALIDDATA;
690 code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
693 if (pixels + code > width ||
694 ssrc + size - src < code) {
695 av_log(s->avctx, AV_LOG_ERROR,
696 "Copy went out of bounds\n");
697 return AVERROR_INVALIDDATA;
699 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
700 dst, 1, src, 0, code, pixels);
703 } else if (code != -128) { // -127..-1
705 if (pixels + code > width) {
706 av_log(s->avctx, AV_LOG_ERROR,
707 "Run went out of bounds\n");
708 return AVERROR_INVALIDDATA;
711 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
712 dst, 0, NULL, c, code, pixels);
718 for (i = 0; i < width; i++)
719 dst[i] = ff_reverse[dst[i]];
724 unpack_yuv(s, p, dst, strip_start + line);
725 line += s->subsampling[1] - 1;
726 } else if (p->format == AV_PIX_FMT_GRAY12) {
727 unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
735 * Map stored raw sensor values into linear reference values.
736 * See: DNG Specification - Chapter 5
738 static uint16_t av_always_inline dng_raw_to_linear16(uint16_t value,
740 uint16_t black_level,
741 float scale_factor) {
742 // Lookup table lookup
746 // Black level subtraction
747 value = av_clip_uint16_c((unsigned)value - black_level);
750 value = av_clip_uint16_c((unsigned)(((float)value * scale_factor) * 0xFFFF));
755 static uint16_t av_always_inline dng_raw_to_linear8(uint16_t value,
757 uint16_t black_level,
758 float scale_factor) {
759 return dng_raw_to_linear16(value, lut, black_level, scale_factor) >> 8;
762 static void dng_blit(TiffContext *s, uint8_t *dst, int dst_stride,
763 const uint8_t *src, int src_stride,
764 int width, int height, int is_u16)
769 scale_factor = 1.0f / (s->white_level - s->black_level);
772 for (line = 0; line < height; line++) {
773 uint16_t *dst_u16 = (uint16_t *)dst;
774 uint16_t *src_u16 = (uint16_t *)src;
776 for (col = 0; col < width; col++)
777 *dst_u16++ = dng_raw_to_linear16(*src_u16++, s->dng_lut, s->black_level, scale_factor);
779 dst += dst_stride * sizeof(uint16_t);
780 src += src_stride * sizeof(uint16_t);
783 for (line = 0; line < height; line++) {
784 for (col = 0; col < width; col++)
785 *dst++ = dng_raw_to_linear8(*src++, s->dng_lut, s->black_level, scale_factor);
793 static int dng_decode_jpeg_tile(AVCodecContext *avctx, AVFrame *frame,
794 int tile_byte_count, int x, int y, int w, int h)
796 TiffContext *s = avctx->priv_data;
798 uint8_t *dst_data, *src_data;
799 uint32_t dst_offset; /* offset from dst buffer in pixels */
800 int is_u16, pixel_size;
803 /* Prepare a packet and send to the MJPEG decoder */
804 av_init_packet(&jpkt);
805 jpkt.data = (uint8_t*)s->gb.buffer;
806 jpkt.size = tile_byte_count;
808 ret = avcodec_send_packet(s->avctx_mjpeg, &jpkt);
810 av_log(avctx, AV_LOG_ERROR, "Error submitting a packet for decoding\n");
814 ret = avcodec_receive_frame(s->avctx_mjpeg, s->jpgframe);
816 av_log(avctx, AV_LOG_ERROR, "JPEG decoding error: %s.\n", av_err2str(ret));
818 /* Normally skip, error if explode */
819 if (avctx->err_recognition & AV_EF_EXPLODE)
820 return AVERROR_INVALIDDATA;
825 /* Copy the outputted tile's pixels from 'jpgframe' to 'frame' (final buffer) */
827 is_u16 = (s->bpp > 8);
828 pixel_size = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
830 dst_offset = x + frame->linesize[0] * y / pixel_size;
831 dst_data = frame->data[0] + dst_offset * pixel_size;
832 src_data = s->jpgframe->data[0];
836 frame->linesize[0] / pixel_size,
838 s->jpgframe->linesize[0] / pixel_size,
843 av_frame_unref(s->jpgframe);
848 static int dng_decode_tiles(AVCodecContext *avctx, AVFrame *frame)
850 TiffContext *s = avctx->priv_data;
852 int tile_offset_offset, tile_offset;
853 int tile_byte_count_offset, tile_byte_count;
854 int tile_count_x, tile_count_y;
855 int tile_width, tile_length;
856 int tile_x = 0, tile_y = 0;
857 int pos_x = 0, pos_y = 0;
860 /* Calculate tile counts (round up) */
861 tile_count_x = (s->width + s->tile_width - 1) / s->tile_width;
862 tile_count_y = (s->height + s->tile_length - 1) / s->tile_length;
864 /* Iterate over the number of tiles */
865 for (tile_idx = 0; tile_idx < s->tile_count; tile_idx++) {
866 tile_x = tile_idx % tile_count_x;
867 tile_y = tile_idx / tile_count_x;
869 if (tile_x == tile_count_x - 1) // If on the right edge
870 tile_width = s->width % s->tile_width;
872 tile_width = s->tile_width;
874 if (tile_y == tile_count_y - 1) // If on the bottom edge
875 tile_length = s->height % s->tile_length;
877 tile_length = s->tile_length;
879 /* Read tile offset */
880 tile_offset_offset = s->tile_offsets_offset + tile_idx * sizeof(int);
881 bytestream2_seek(&s->gb, tile_offset_offset, SEEK_SET);
882 tile_offset = ff_tget_long(&s->gb, s->le);
884 /* Read tile byte size */
885 tile_byte_count_offset = s->tile_byte_counts_offset + tile_idx * sizeof(int);
886 bytestream2_seek(&s->gb, tile_byte_count_offset, SEEK_SET);
887 tile_byte_count = ff_tget_long(&s->gb, s->le);
889 /* Seek to tile data */
890 bytestream2_seek(&s->gb, tile_offset, SEEK_SET);
892 /* Decode JPEG tile and copy it in the reference frame */
893 ret = dng_decode_jpeg_tile(avctx, frame, tile_byte_count, pos_x, pos_y, tile_width, tile_length);
898 /* Advance current positions */
900 if (tile_x == tile_count_x - 1) { // If on the right edge
902 pos_y += tile_length;
909 static int dng_decode(AVCodecContext *avctx, AVFrame *frame, AVPacket *avpkt) {
912 TiffContext *s = avctx->priv_data;
914 s->jpgframe->width = s->tile_width;
915 s->jpgframe->height = s->tile_length;
917 s->avctx_mjpeg->width = s->tile_width;
918 s->avctx_mjpeg->height = s->tile_length;
920 /* Decode all tiles in a frame */
921 ret = dng_decode_tiles(avctx, frame);
925 /* Frame is ready to be output */
926 frame->pict_type = AV_PICTURE_TYPE_I;
927 frame->key_frame = 1;
932 static int init_image(TiffContext *s, ThreadFrame *frame)
935 int create_gray_palette = 0;
937 // make sure there is no aliasing in the following switch
938 if (s->bpp >= 100 || s->bppcount >= 10) {
939 av_log(s->avctx, AV_LOG_ERROR,
940 "Unsupported image parameters: bpp=%d, bppcount=%d\n",
941 s->bpp, s->bppcount);
942 return AVERROR_INVALIDDATA;
945 switch (s->planar * 1000 + s->bpp * 10 + s->bppcount + s->is_bayer * 10000) {
947 if (!s->palette_is_set) {
948 s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
953 s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
954 if (!s->palette_is_set) {
955 create_gray_palette = 1;
959 s->avctx->pix_fmt = s->palette_is_set ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_GRAY8;
962 s->avctx->pix_fmt = AV_PIX_FMT_GRAY12;
965 switch (AV_RL32(s->pattern)) {
967 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB8;
970 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR8;
973 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG8;
976 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG8;
979 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
980 AV_RL32(s->pattern));
981 return AVERROR_PATCHWELCOME;
985 switch (AV_RL32(s->pattern)) {
987 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_RGGB16LE : AV_PIX_FMT_BAYER_RGGB16BE;
990 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_BGGR16LE : AV_PIX_FMT_BAYER_BGGR16BE;
993 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GBRG16LE : AV_PIX_FMT_BAYER_GBRG16BE;
996 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GRBG16LE : AV_PIX_FMT_BAYER_GRBG16BE;
999 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1000 AV_RL32(s->pattern));
1001 return AVERROR_PATCHWELCOME;
1005 switch (AV_RL32(s->pattern)) {
1007 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_RGGB16LE : AV_PIX_FMT_BAYER_RGGB16BE;
1010 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_BGGR16LE : AV_PIX_FMT_BAYER_BGGR16BE;
1013 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GBRG16LE : AV_PIX_FMT_BAYER_GBRG16BE;
1016 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GRBG16LE : AV_PIX_FMT_BAYER_GRBG16BE;
1019 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1020 AV_RL32(s->pattern));
1021 return AVERROR_PATCHWELCOME;
1025 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1026 if (s->subsampling[0] == 1 && s->subsampling[1] == 1) {
1027 s->avctx->pix_fmt = AV_PIX_FMT_YUV444P;
1028 } else if (s->subsampling[0] == 2 && s->subsampling[1] == 1) {
1029 s->avctx->pix_fmt = AV_PIX_FMT_YUV422P;
1030 } else if (s->subsampling[0] == 4 && s->subsampling[1] == 1) {
1031 s->avctx->pix_fmt = AV_PIX_FMT_YUV411P;
1032 } else if (s->subsampling[0] == 1 && s->subsampling[1] == 2) {
1033 s->avctx->pix_fmt = AV_PIX_FMT_YUV440P;
1034 } else if (s->subsampling[0] == 2 && s->subsampling[1] == 2) {
1035 s->avctx->pix_fmt = AV_PIX_FMT_YUV420P;
1036 } else if (s->subsampling[0] == 4 && s->subsampling[1] == 4) {
1037 s->avctx->pix_fmt = AV_PIX_FMT_YUV410P;
1039 av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr subsampling\n");
1040 return AVERROR_PATCHWELCOME;
1043 s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
1046 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
1049 s->avctx->pix_fmt = AV_PIX_FMT_YA8;
1052 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_YA16LE : AV_PIX_FMT_YA16BE;
1055 s->avctx->pix_fmt = s->photometric == TIFF_PHOTOMETRIC_SEPARATED ? AV_PIX_FMT_RGB0 : AV_PIX_FMT_RGBA;
1058 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED)
1059 s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
1061 av_log(s->avctx, AV_LOG_ERROR,
1062 "bpp=40 without PHOTOMETRIC_SEPARATED is unsupported\n");
1063 return AVERROR_PATCHWELCOME;
1067 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
1070 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
1073 s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
1076 s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
1079 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE;
1082 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE;
1085 av_log(s->avctx, AV_LOG_ERROR,
1086 "This format is not supported (bpp=%d, bppcount=%d)\n",
1087 s->bpp, s->bppcount);
1088 return AVERROR_INVALIDDATA;
1091 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1092 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
1093 if((desc->flags & AV_PIX_FMT_FLAG_RGB) ||
1094 !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) ||
1095 desc->nb_components < 3) {
1096 av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr variant\n");
1097 return AVERROR_INVALIDDATA;
1101 if (s->width != s->avctx->width || s->height != s->avctx->height) {
1102 ret = ff_set_dimensions(s->avctx, s->width, s->height);
1106 if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
1108 if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
1109 if (!create_gray_palette)
1110 memcpy(frame->f->data[1], s->palette, sizeof(s->palette));
1112 /* make default grayscale pal */
1114 uint32_t *pal = (uint32_t *)frame->f->data[1];
1115 for (i = 0; i < 1<<s->bpp; i++)
1116 pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
1122 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
1124 int offset = tag == TIFF_YRES ? 2 : 0;
1125 s->res[offset++] = num;
1126 s->res[offset] = den;
1127 if (s->res[0] && s->res[1] && s->res[2] && s->res[3]) {
1128 uint64_t num = s->res[2] * (uint64_t)s->res[1];
1129 uint64_t den = s->res[0] * (uint64_t)s->res[3];
1130 if (num > INT64_MAX || den > INT64_MAX) {
1134 av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den,
1135 num, den, INT32_MAX);
1136 if (!s->avctx->sample_aspect_ratio.den)
1137 s->avctx->sample_aspect_ratio = (AVRational) {0, 1};
1141 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
1143 unsigned tag, type, count, off, value = 0, value2 = 1; // value2 is a denominator so init. to 1
1149 ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
1154 off = bytestream2_tell(&s->gb);
1160 value = ff_tget(&s->gb, type, s->le);
1163 value = ff_tget(&s->gb, TIFF_LONG, s->le);
1164 value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
1177 s->is_thumbnail = (value != 0);
1187 av_log(s->avctx, AV_LOG_ERROR,
1188 "This format is not supported (bpp=%d, %d components)\n",
1190 return AVERROR_INVALIDDATA;
1192 s->bppcount = count;
1201 if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
1202 return AVERROR_INVALIDDATA;
1203 for (i = 0; i < count; i++)
1204 s->bpp += ff_tget(&s->gb, type, s->le);
1211 case TIFF_SAMPLES_PER_PIXEL:
1213 av_log(s->avctx, AV_LOG_ERROR,
1214 "Samples per pixel requires a single value, many provided\n");
1215 return AVERROR_INVALIDDATA;
1218 av_log(s->avctx, AV_LOG_ERROR,
1219 "Samples per pixel %d is too large\n", value);
1220 return AVERROR_INVALIDDATA;
1222 if (s->bppcount == 1)
1224 s->bppcount = value;
1228 av_log(s->avctx, AV_LOG_DEBUG, "compression: %d\n", s->compr);
1234 case TIFF_CCITT_RLE:
1241 case TIFF_ADOBE_DEFLATE:
1245 av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
1246 return AVERROR(ENOSYS);
1256 av_log(s->avctx, AV_LOG_ERROR, "LZMA not compiled in\n");
1257 return AVERROR(ENOSYS);
1260 av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
1262 return AVERROR_INVALIDDATA;
1265 case TIFF_ROWSPERSTRIP:
1266 if (!value || (type == TIFF_LONG && value == UINT_MAX))
1268 s->rps = FFMIN(value, s->height);
1270 case TIFF_STRIP_OFFS:
1272 if (value > INT_MAX) {
1273 av_log(s->avctx, AV_LOG_ERROR,
1274 "strippos %u too large\n", value);
1275 return AVERROR_INVALIDDATA;
1278 s->stripoff = value;
1286 case TIFF_STRIP_SIZE:
1288 if (value > INT_MAX) {
1289 av_log(s->avctx, AV_LOG_ERROR,
1290 "stripsize %u too large\n", value);
1291 return AVERROR_INVALIDDATA;
1293 s->stripsizesoff = 0;
1294 s->stripsize = value;
1297 s->stripsizesoff = off;
1304 set_sar(s, tag, value, value2);
1306 case TIFF_TILE_OFFSETS:
1307 s->tile_offsets_offset = off;
1308 s->tile_count = count;
1311 case TIFF_TILE_BYTE_COUNTS:
1312 s->tile_byte_counts_offset = off;
1314 case TIFF_TILE_LENGTH:
1315 s->tile_length = value;
1317 case TIFF_TILE_WIDTH:
1318 s->tile_width = value;
1320 case TIFF_PREDICTOR:
1321 s->predictor = value;
1327 s->sub_ifd = ff_tget(&s->gb, TIFF_LONG, s->le); /** Only get the first SubIFD */
1329 case DNG_LINEARIZATION_TABLE: {
1330 uint32_t lut_offset = value;
1331 uint32_t lut_size = count;
1332 uint32_t lut_wanted_size = 1 << s->bpp;
1333 if (lut_wanted_size != lut_size)
1334 av_log(s->avctx, AV_LOG_WARNING, "DNG contains LUT with invalid size (%"PRIu32"), disabling LUT\n", lut_size);
1335 else if (lut_offset >= bytestream2_size(&s->gb))
1336 av_log(s->avctx, AV_LOG_WARNING, "DNG contains LUT with invalid offset (%"PRIu32"), disabling LUT\n", lut_offset);
1338 s->dng_lut = (uint16_t*)(s->gb.buffer + lut_offset);
1341 case DNG_BLACK_LEVEL:
1342 if (count > 1) { /* Use the first value in the pattern (assume they're all the same) */
1343 if (type == TIFF_RATIONAL) {
1344 value = ff_tget(&s->gb, TIFF_LONG, s->le);
1345 value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
1347 s->black_level = value / value2;
1349 s->black_level = ff_tget(&s->gb, type, s->le);
1350 av_log(s->avctx, AV_LOG_WARNING, "Assuming black level pattern values are identical\n");
1352 s->black_level = value / value2;
1355 case DNG_WHITE_LEVEL:
1356 s->white_level = value;
1358 case TIFF_CFA_PATTERN_DIM:
1359 if (count != 2 || (ff_tget(&s->gb, type, s->le) != 2 &&
1360 ff_tget(&s->gb, type, s->le) != 2)) {
1361 av_log(s->avctx, AV_LOG_ERROR, "CFA Pattern dimensions are not 2x2\n");
1362 return AVERROR_INVALIDDATA;
1365 case TIFF_CFA_PATTERN:
1367 s->pattern[0] = ff_tget(&s->gb, type, s->le);
1368 s->pattern[1] = ff_tget(&s->gb, type, s->le);
1369 s->pattern[2] = ff_tget(&s->gb, type, s->le);
1370 s->pattern[3] = ff_tget(&s->gb, type, s->le);
1372 case TIFF_PHOTOMETRIC:
1374 case TIFF_PHOTOMETRIC_WHITE_IS_ZERO:
1375 case TIFF_PHOTOMETRIC_BLACK_IS_ZERO:
1376 case TIFF_PHOTOMETRIC_RGB:
1377 case TIFF_PHOTOMETRIC_PALETTE:
1378 case TIFF_PHOTOMETRIC_SEPARATED:
1379 case TIFF_PHOTOMETRIC_YCBCR:
1380 case TIFF_PHOTOMETRIC_CFA:
1381 s->photometric = value;
1383 case TIFF_PHOTOMETRIC_ALPHA_MASK:
1384 case TIFF_PHOTOMETRIC_CIE_LAB:
1385 case TIFF_PHOTOMETRIC_ICC_LAB:
1386 case TIFF_PHOTOMETRIC_ITU_LAB:
1387 case TIFF_PHOTOMETRIC_LOG_L:
1388 case TIFF_PHOTOMETRIC_LOG_LUV:
1389 case TIFF_PHOTOMETRIC_LINEAR_RAW:
1390 avpriv_report_missing_feature(s->avctx,
1391 "PhotometricInterpretation 0x%04X",
1393 return AVERROR_PATCHWELCOME;
1395 av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
1396 "unknown\n", value);
1397 return AVERROR_INVALIDDATA;
1400 case TIFF_FILL_ORDER:
1401 if (value < 1 || value > 2) {
1402 av_log(s->avctx, AV_LOG_ERROR,
1403 "Unknown FillOrder value %d, trying default one\n", value);
1406 s->fill_order = value - 1;
1409 GetByteContext pal_gb[3];
1410 off = type_sizes[type];
1411 if (count / 3 > 256 ||
1412 bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
1413 return AVERROR_INVALIDDATA;
1415 pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
1416 bytestream2_skip(&pal_gb[1], count / 3 * off);
1417 bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
1419 off = (type_sizes[type] - 1) << 3;
1421 av_log(s->avctx, AV_LOG_ERROR, "palette shift %d is out of range\n", off);
1422 return AVERROR_INVALIDDATA;
1425 for (i = 0; i < count / 3; i++) {
1426 uint32_t p = 0xFF000000;
1427 p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
1428 p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
1429 p |= ff_tget(&pal_gb[2], type, s->le) >> off;
1432 s->palette_is_set = 1;
1436 s->planar = value == 2;
1438 case TIFF_YCBCR_SUBSAMPLING:
1440 av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n");
1441 return AVERROR_INVALIDDATA;
1443 for (i = 0; i < count; i++) {
1444 s->subsampling[i] = ff_tget(&s->gb, type, s->le);
1445 if (s->subsampling[i] <= 0) {
1446 av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]);
1447 s->subsampling[i] = 1;
1448 return AVERROR_INVALIDDATA;
1452 case TIFF_T4OPTIONS:
1453 if (s->compr == TIFF_G3)
1454 s->fax_opts = value;
1456 case TIFF_T6OPTIONS:
1457 if (s->compr == TIFF_G4)
1458 s->fax_opts = value;
1460 #define ADD_METADATA(count, name, sep)\
1461 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
1462 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
1465 case TIFF_MODEL_PIXEL_SCALE:
1466 ADD_METADATA(count, "ModelPixelScaleTag", NULL);
1468 case TIFF_MODEL_TRANSFORMATION:
1469 ADD_METADATA(count, "ModelTransformationTag", NULL);
1471 case TIFF_MODEL_TIEPOINT:
1472 ADD_METADATA(count, "ModelTiepointTag", NULL);
1474 case TIFF_GEO_KEY_DIRECTORY:
1475 if (s->geotag_count) {
1476 avpriv_request_sample(s->avctx, "Multiple geo key directories\n");
1477 return AVERROR_INVALIDDATA;
1479 ADD_METADATA(1, "GeoTIFF_Version", NULL);
1480 ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
1481 s->geotag_count = ff_tget_short(&s->gb, s->le);
1482 if (s->geotag_count > count / 4 - 1) {
1483 s->geotag_count = count / 4 - 1;
1484 av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
1486 if ( bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4
1487 || s->geotag_count == 0) {
1488 s->geotag_count = 0;
1491 s->geotags = av_mallocz_array(s->geotag_count, sizeof(TiffGeoTag));
1493 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1494 s->geotag_count = 0;
1497 for (i = 0; i < s->geotag_count; i++) {
1498 s->geotags[i].key = ff_tget_short(&s->gb, s->le);
1499 s->geotags[i].type = ff_tget_short(&s->gb, s->le);
1500 s->geotags[i].count = ff_tget_short(&s->gb, s->le);
1502 if (!s->geotags[i].type)
1503 s->geotags[i].val = get_geokey_val(s->geotags[i].key, ff_tget_short(&s->gb, s->le));
1505 s->geotags[i].offset = ff_tget_short(&s->gb, s->le);
1508 case TIFF_GEO_DOUBLE_PARAMS:
1509 if (count >= INT_MAX / sizeof(int64_t))
1510 return AVERROR_INVALIDDATA;
1511 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
1512 return AVERROR_INVALIDDATA;
1513 dp = av_malloc_array(count, sizeof(double));
1515 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1518 for (i = 0; i < count; i++)
1519 dp[i] = ff_tget_double(&s->gb, s->le);
1520 for (i = 0; i < s->geotag_count; i++) {
1521 if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
1522 if (s->geotags[i].count == 0
1523 || s->geotags[i].offset + s->geotags[i].count > count) {
1524 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1525 } else if (s->geotags[i].val) {
1526 av_log(s->avctx, AV_LOG_WARNING, "Duplicate GeoTIFF key %d\n", s->geotags[i].key);
1528 char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
1530 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1532 return AVERROR(ENOMEM);
1534 s->geotags[i].val = ap;
1540 case TIFF_GEO_ASCII_PARAMS:
1541 pos = bytestream2_tell(&s->gb);
1542 for (i = 0; i < s->geotag_count; i++) {
1543 if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
1544 if (s->geotags[i].count == 0
1545 || s->geotags[i].offset + s->geotags[i].count > count) {
1546 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1550 bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
1551 if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
1552 return AVERROR_INVALIDDATA;
1553 if (s->geotags[i].val)
1554 return AVERROR_INVALIDDATA;
1555 ap = av_malloc(s->geotags[i].count);
1557 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1558 return AVERROR(ENOMEM);
1560 bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
1561 ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
1562 s->geotags[i].val = ap;
1568 ADD_METADATA(count, "artist", NULL);
1570 case TIFF_COPYRIGHT:
1571 ADD_METADATA(count, "copyright", NULL);
1574 ADD_METADATA(count, "date", NULL);
1576 case TIFF_DOCUMENT_NAME:
1577 ADD_METADATA(count, "document_name", NULL);
1579 case TIFF_HOST_COMPUTER:
1580 ADD_METADATA(count, "computer", NULL);
1582 case TIFF_IMAGE_DESCRIPTION:
1583 ADD_METADATA(count, "description", NULL);
1586 ADD_METADATA(count, "make", NULL);
1589 ADD_METADATA(count, "model", NULL);
1591 case TIFF_PAGE_NAME:
1592 ADD_METADATA(count, "page_name", NULL);
1594 case TIFF_PAGE_NUMBER:
1595 ADD_METADATA(count, "page_number", " / ");
1596 // need to seek back to re-read the page number
1597 bytestream2_seek(&s->gb, -count * sizeof(uint16_t), SEEK_CUR);
1598 // read the page number
1599 s->cur_page = ff_tget(&s->gb, TIFF_SHORT, s->le);
1600 // get back to where we were before the previous seek
1601 bytestream2_seek(&s->gb, count * sizeof(uint16_t) - sizeof(uint16_t), SEEK_CUR);
1603 case TIFF_SOFTWARE_NAME:
1604 ADD_METADATA(count, "software", NULL);
1608 unsigned int ver[4];
1609 ver[0] = ff_tget(&s->gb, type, s->le);
1610 ver[1] = ff_tget(&s->gb, type, s->le);
1611 ver[2] = ff_tget(&s->gb, type, s->le);
1612 ver[3] = ff_tget(&s->gb, type, s->le);
1614 av_log(s->avctx, AV_LOG_DEBUG, "DNG file, version %u.%u.%u.%u\n",
1615 ver[0], ver[1], ver[2], ver[3]);
1617 tiff_set_type(s, TIFF_TYPE_DNG);
1620 case CINEMADNG_TIME_CODES:
1621 case CINEMADNG_FRAME_RATE:
1622 case CINEMADNG_T_STOP:
1623 case CINEMADNG_REEL_NAME:
1624 case CINEMADNG_CAMERA_LABEL:
1625 tiff_set_type(s, TIFF_TYPE_CINEMADNG);
1628 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1629 av_log(s->avctx, AV_LOG_ERROR,
1630 "Unknown or unsupported tag %d/0x%0X\n",
1632 return AVERROR_INVALIDDATA;
1637 av_log(s->avctx, AV_LOG_ERROR,
1638 "This format is not supported (bpp=%d, %d components)\n",
1641 return AVERROR_INVALIDDATA;
1643 bytestream2_seek(&s->gb, start, SEEK_SET);
1647 static int decode_frame(AVCodecContext *avctx,
1648 void *data, int *got_frame, AVPacket *avpkt)
1650 TiffContext *const s = avctx->priv_data;
1651 AVFrame *const p = data;
1652 ThreadFrame frame = { .f = data };
1653 unsigned off, last_off;
1654 int le, ret, plane, planes;
1655 int i, j, entries, stride;
1656 unsigned soff, ssize;
1658 GetByteContext stripsizes;
1659 GetByteContext stripdata;
1660 int retry_for_subifd, retry_for_page;
1662 bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1664 // parse image header
1665 if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
1666 av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
1668 } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1669 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1670 return AVERROR_INVALIDDATA;
1673 // TIFF_BPP is not a required tag and defaults to 1
1675 s->tiff_type = TIFF_TYPE_TIFF;
1677 s->is_thumbnail = 0;
1678 s->bppcount = s->bpp = 1;
1679 s->photometric = TIFF_PHOTOMETRIC_NONE;
1680 s->compr = TIFF_RAW;
1690 // Reset these offsets so we can tell if they were set this frame
1691 s->stripsizesoff = s->strippos = 0;
1692 /* parse image file directory */
1693 bytestream2_seek(&s->gb, off, SEEK_SET);
1694 entries = ff_tget_short(&s->gb, le);
1695 if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1696 return AVERROR_INVALIDDATA;
1697 for (i = 0; i < entries; i++) {
1698 if ((ret = tiff_decode_tag(s, p)) < 0)
1702 if (s->get_thumbnail && !s->is_thumbnail) {
1703 av_log(avctx, AV_LOG_INFO, "No embedded thumbnail present\n");
1707 /** whether we should process this IFD's SubIFD */
1708 retry_for_subifd = s->sub_ifd && (s->get_subimage || (!s->get_thumbnail && s->is_thumbnail));
1709 /** whether we should process this multi-page IFD's next page */
1710 retry_for_page = s->get_page && s->cur_page + 1 < s->get_page; // get_page is 1-indexed
1713 if (retry_for_page) {
1714 // set offset to the next IFD
1715 off = ff_tget_long(&s->gb, le);
1716 } else if (retry_for_subifd) {
1717 // set offset to the SubIFD
1721 if (retry_for_subifd || retry_for_page) {
1723 av_log(avctx, AV_LOG_ERROR, "Requested entry not found\n");
1724 return AVERROR_INVALIDDATA;
1726 if (off <= last_off) {
1727 avpriv_request_sample(s->avctx, "non increasing IFD offset\n");
1728 return AVERROR_INVALIDDATA;
1730 if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1731 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1732 return AVERROR_INVALIDDATA;
1738 for (i = 0; i<s->geotag_count; i++) {
1739 const char *keyname = get_geokey_name(s->geotags[i].key);
1741 av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
1744 if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
1745 av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
1748 ret = av_dict_set(&p->metadata, keyname, s->geotags[i].val, 0);
1750 av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
1755 if (!s->strippos && !s->stripoff) {
1756 av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
1757 return AVERROR_INVALIDDATA;
1759 /* now we have the data and may start decoding */
1760 if ((ret = init_image(s, &frame)) < 0)
1763 if (s->strips == 1 && !s->stripsize) {
1764 av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
1765 s->stripsize = avpkt->size - s->stripoff;
1768 if (s->stripsizesoff) {
1769 if (s->stripsizesoff >= (unsigned)avpkt->size)
1770 return AVERROR_INVALIDDATA;
1771 bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
1772 avpkt->size - s->stripsizesoff);
1775 if (s->strippos >= (unsigned)avpkt->size)
1776 return AVERROR_INVALIDDATA;
1777 bytestream2_init(&stripdata, avpkt->data + s->strippos,
1778 avpkt->size - s->strippos);
1781 if (s->rps <= 0 || s->rps % s->subsampling[1]) {
1782 av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1783 return AVERROR_INVALIDDATA;
1786 /* Handle DNG images with JPEG-compressed tiles */
1788 if ((s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG) && s->is_tiled) {
1790 avpriv_report_missing_feature(avctx, "DNG uncompressed tiled images");
1791 return AVERROR_PATCHWELCOME;
1792 } else if (!s->is_bayer) {
1793 avpriv_report_missing_feature(avctx, "DNG JPG-compressed tiled non-bayer-encoded images");
1794 return AVERROR_PATCHWELCOME;
1796 if ((ret = dng_decode(avctx, (AVFrame*)data, avpkt)) > 0)
1802 /* Handle TIFF images and DNG images with uncompressed strips (non-tiled) */
1804 planes = s->planar ? s->bppcount : 1;
1805 for (plane = 0; plane < planes; plane++) {
1806 uint8_t *five_planes = NULL;
1807 int remaining = avpkt->size;
1809 stride = p->linesize[plane];
1810 dst = p->data[plane];
1811 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
1812 s->avctx->pix_fmt == AV_PIX_FMT_RGBA) {
1813 stride = stride * 5 / 4;
1815 dst = av_malloc(stride * s->height);
1817 return AVERROR(ENOMEM);
1819 for (i = 0; i < s->height; i += s->rps) {
1821 dst += s->rps * stride;
1822 if (s->stripsizesoff)
1823 ssize = ff_tget(&stripsizes, s->sstype, le);
1825 ssize = s->stripsize;
1828 soff = ff_tget(&stripdata, s->sot, le);
1832 if (soff > avpkt->size || ssize > avpkt->size - soff || ssize > remaining) {
1833 av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
1834 av_freep(&five_planes);
1835 return AVERROR_INVALIDDATA;
1838 if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i,
1839 FFMIN(s->rps, s->height - i))) < 0) {
1840 if (avctx->err_recognition & AV_EF_EXPLODE) {
1841 av_freep(&five_planes);
1847 decoded_height = FFMIN(i, s->height);
1849 if (s->predictor == 2) {
1850 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1851 av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported");
1852 return AVERROR_PATCHWELCOME;
1854 dst = five_planes ? five_planes : p->data[plane];
1857 soff = FFMAX(soff / s->bppcount, 1);
1858 ssize = s->width * soff;
1859 if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
1860 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
1861 s->avctx->pix_fmt == AV_PIX_FMT_GRAY16LE ||
1862 s->avctx->pix_fmt == AV_PIX_FMT_YA16LE ||
1863 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
1864 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
1865 for (i = 0; i < decoded_height; i++) {
1866 for (j = soff; j < ssize; j += 2)
1867 AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
1870 } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
1871 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
1872 s->avctx->pix_fmt == AV_PIX_FMT_GRAY16BE ||
1873 s->avctx->pix_fmt == AV_PIX_FMT_YA16BE ||
1874 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
1875 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
1876 for (i = 0; i < decoded_height; i++) {
1877 for (j = soff; j < ssize; j += 2)
1878 AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
1882 for (i = 0; i < decoded_height; i++) {
1883 for (j = soff; j < ssize; j++)
1884 dst[j] += dst[j - soff];
1890 if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) {
1891 int c = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255);
1892 dst = p->data[plane];
1893 for (i = 0; i < s->height; i++) {
1894 for (j = 0; j < stride; j++)
1895 dst[j] = c - dst[j];
1900 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
1901 (s->avctx->pix_fmt == AV_PIX_FMT_RGB0 || s->avctx->pix_fmt == AV_PIX_FMT_RGBA)) {
1902 int x = s->avctx->pix_fmt == AV_PIX_FMT_RGB0 ? 4 : 5;
1903 uint8_t *src = five_planes ? five_planes : p->data[plane];
1904 dst = p->data[plane];
1905 for (i = 0; i < s->height; i++) {
1906 for (j = 0; j < s->width; j++) {
1907 int k = 255 - src[x * j + 3];
1908 int r = (255 - src[x * j ]) * k;
1909 int g = (255 - src[x * j + 1]) * k;
1910 int b = (255 - src[x * j + 2]) * k;
1911 dst[4 * j ] = r * 257 >> 16;
1912 dst[4 * j + 1] = g * 257 >> 16;
1913 dst[4 * j + 2] = b * 257 >> 16;
1914 dst[4 * j + 3] = s->avctx->pix_fmt == AV_PIX_FMT_RGBA ? src[x * j + 4] : 255;
1917 dst += p->linesize[plane];
1919 av_freep(&five_planes);
1920 } else if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
1921 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) {
1922 dst = p->data[plane];
1923 for (i = 0; i < s->height; i++) {
1924 for (j = 0; j < s->width; j++) {
1925 uint64_t k = 65535 - AV_RB16(dst + 8 * j + 6);
1926 uint64_t r = (65535 - AV_RB16(dst + 8 * j )) * k;
1927 uint64_t g = (65535 - AV_RB16(dst + 8 * j + 2)) * k;
1928 uint64_t b = (65535 - AV_RB16(dst + 8 * j + 4)) * k;
1929 AV_WB16(dst + 8 * j , r * 65537 >> 32);
1930 AV_WB16(dst + 8 * j + 2, g * 65537 >> 32);
1931 AV_WB16(dst + 8 * j + 4, b * 65537 >> 32);
1932 AV_WB16(dst + 8 * j + 6, 65535);
1934 dst += p->linesize[plane];
1939 if (s->planar && s->bppcount > 2) {
1940 FFSWAP(uint8_t*, p->data[0], p->data[2]);
1941 FFSWAP(int, p->linesize[0], p->linesize[2]);
1942 FFSWAP(uint8_t*, p->data[0], p->data[1]);
1943 FFSWAP(int, p->linesize[0], p->linesize[1]);
1946 if (s->is_bayer && s->white_level && s->bpp == 16) {
1947 uint16_t *dst = (uint16_t *)p->data[0];
1948 for (i = 0; i < s->height; i++) {
1949 for (j = 0; j < s->width; j++)
1950 dst[j] = FFMIN((dst[j] / (float)s->white_level) * 65535, 65535);
1960 static av_cold int tiff_init(AVCodecContext *avctx)
1962 TiffContext *s = avctx->priv_data;
1963 const AVCodec *codec;
1969 s->subsampling[1] = 1;
1971 ff_lzw_decode_open(&s->lzw);
1973 return AVERROR(ENOMEM);
1974 ff_ccitt_unpack_init();
1976 /* Allocate JPEG frame */
1977 s->jpgframe = av_frame_alloc();
1979 return AVERROR(ENOMEM);
1981 /* Prepare everything needed for JPEG decoding */
1982 codec = avcodec_find_decoder(AV_CODEC_ID_MJPEG);
1985 s->avctx_mjpeg = avcodec_alloc_context3(codec);
1986 if (!s->avctx_mjpeg)
1987 return AVERROR(ENOMEM);
1988 s->avctx_mjpeg->flags = avctx->flags;
1989 s->avctx_mjpeg->flags2 = avctx->flags2;
1990 s->avctx_mjpeg->dct_algo = avctx->dct_algo;
1991 s->avctx_mjpeg->idct_algo = avctx->idct_algo;
1992 ret = ff_codec_open2_recursive(s->avctx_mjpeg, codec, NULL);
1994 av_frame_free(&s->jpgframe);
1995 avcodec_free_context(&s->avctx_mjpeg);
2002 static av_cold int tiff_end(AVCodecContext *avctx)
2004 TiffContext *const s = avctx->priv_data;
2008 ff_lzw_decode_close(&s->lzw);
2009 av_freep(&s->deinvert_buf);
2010 s->deinvert_buf_size = 0;
2011 av_freep(&s->yuv_line);
2012 s->yuv_line_size = 0;
2013 av_freep(&s->fax_buffer);
2014 s->fax_buffer_size = 0;
2015 av_frame_free(&s->jpgframe);
2016 avcodec_free_context(&s->avctx_mjpeg);
2020 #define OFFSET(x) offsetof(TiffContext, x)
2021 static const AVOption tiff_options[] = {
2022 { "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 },
2023 { "thumbnail", "decode embedded thumbnail subimage instead if available", OFFSET(get_thumbnail), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM },
2024 { "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 },
2028 static const AVClass tiff_decoder_class = {
2029 .class_name = "TIFF decoder",
2030 .item_name = av_default_item_name,
2031 .option = tiff_options,
2032 .version = LIBAVUTIL_VERSION_INT,
2035 AVCodec ff_tiff_decoder = {
2037 .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
2038 .type = AVMEDIA_TYPE_VIDEO,
2039 .id = AV_CODEC_ID_TIFF,
2040 .priv_data_size = sizeof(TiffContext),
2043 .decode = decode_frame,
2044 .init_thread_copy = ONLY_IF_THREADS_ENABLED(tiff_init),
2045 .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
2046 .priv_class = &tiff_decoder_class,