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 AVPacket *jpkt; // encoded JPEG tile
62 AVFrame *jpgframe; // decoded JPEG tile
68 enum TiffType tiff_type;
70 unsigned int bpp, bppcount;
71 uint32_t palette[256];
75 enum TiffPhotometric photometric;
89 uint16_t dng_lut[65536];
94 int strips, rps, sstype;
96 int stripsizesoff, stripsize, stripoff, strippos;
101 int tile_byte_counts_offset, tile_offsets_offset;
102 int tile_width, tile_length;
107 uint8_t *deinvert_buf;
108 int deinvert_buf_size;
110 unsigned int yuv_line_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(tiff_##array##_name_type_map))\
135 return 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(tiff_##array##_codes))\
183 return av_strdup(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(tiff_proj_cs_type_codes, FF_ARRAY_ELEMS(tiff_proj_cs_type_codes), val));
219 case TIFF_PROJECTION_GEOKEY:
220 ap = av_strdup(search_keyval(tiff_projection_codes, FF_ARRAY_ELEMS(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;
277 * Map stored raw sensor values into linear reference values (see: DNG Specification - Chapter 5)
279 static uint16_t av_always_inline dng_process_color16(uint16_t value,
281 uint16_t black_level,
286 // Lookup table lookup
290 // Black level subtraction
291 value = av_clip_uint16_c((unsigned)value - black_level);
294 value_norm = (float)value * scale_factor;
296 value = av_clip_uint16_c(value_norm * 65535);
301 static uint16_t av_always_inline dng_process_color8(uint16_t value,
303 uint16_t black_level,
306 return dng_process_color16(value, lut, black_level, scale_factor) >> 8;
309 static void av_always_inline dng_blit(TiffContext *s, uint8_t *dst, int dst_stride,
310 const uint8_t *src, int src_stride, int width, int height,
311 int is_single_comp, int is_u16)
316 scale_factor = 1.0f / (s->white_level - s->black_level);
318 if (is_single_comp) {
320 return; /* <= 8bpp unsupported */
322 /* Image is double the width and half the height we need, each row comprises 2 rows of the output
323 (split vertically in the middle). */
324 for (line = 0; line < height / 2; line++) {
325 uint16_t *dst_u16 = (uint16_t *)dst;
326 uint16_t *src_u16 = (uint16_t *)src;
328 /* Blit first half of input row row to initial row of output */
329 for (col = 0; col < width; col++)
330 *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level, scale_factor);
332 /* Advance the destination pointer by a row (source pointer remains in the same place) */
333 dst += dst_stride * sizeof(uint16_t);
334 dst_u16 = (uint16_t *)dst;
336 /* Blit second half of input row row to next row of output */
337 for (col = 0; col < width; col++)
338 *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level, scale_factor);
340 dst += dst_stride * sizeof(uint16_t);
341 src += src_stride * sizeof(uint16_t);
344 /* Input and output image are the same size and the MJpeg decoder has done per-component
345 deinterleaving, so blitting here is straightforward. */
347 for (line = 0; line < height; line++) {
348 uint16_t *dst_u16 = (uint16_t *)dst;
349 uint16_t *src_u16 = (uint16_t *)src;
351 for (col = 0; col < width; col++)
352 *dst_u16++ = dng_process_color16(*src_u16++, s->dng_lut, s->black_level, scale_factor);
354 dst += dst_stride * sizeof(uint16_t);
355 src += src_stride * sizeof(uint16_t);
358 for (line = 0; line < height; line++) {
359 uint8_t *dst_u8 = dst;
360 const uint8_t *src_u8 = src;
362 for (col = 0; col < width; col++)
363 *dst_u8++ = dng_process_color8(*src_u8++, s->dng_lut, s->black_level, scale_factor);
372 static void av_always_inline horizontal_fill(TiffContext *s,
373 unsigned int bpp, uint8_t* dst,
374 int usePtr, const uint8_t *src,
375 uint8_t c, int width, int offset)
379 while (--width >= 0) {
380 dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
381 dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
382 dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
383 dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
384 dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
385 dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
386 dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
387 dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
391 while (--width >= 0) {
392 dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
393 dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
394 dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
395 dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
399 while (--width >= 0) {
400 dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
401 dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
407 uint16_t *dst16 = (uint16_t *)dst;
408 int is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
409 uint8_t shift = is_dng ? 0 : 16 - bpp;
412 init_get_bits8(&gb, src, width);
413 for (int i = 0; i < s->width; i++) {
414 dst16[i] = get_bits(&gb, bpp) << shift;
420 memcpy(dst + offset, src, width);
422 memset(dst + offset, c, width);
427 static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
431 av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size);
432 if (!s->deinvert_buf)
433 return AVERROR(ENOMEM);
434 for (i = 0; i < size; i++)
435 s->deinvert_buf[i] = ff_reverse[src[i]];
440 static void unpack_gray(TiffContext *s, AVFrame *p,
441 const uint8_t *src, int lnum, int width, int bpp)
444 uint16_t *dst = (uint16_t *)(p->data[0] + lnum * p->linesize[0]);
446 init_get_bits8(&gb, src, width);
448 for (int i = 0; i < s->width; i++) {
449 dst[i] = get_bits(&gb, bpp);
453 static void unpack_yuv(TiffContext *s, AVFrame *p,
454 const uint8_t *src, int lnum)
457 int w = (s->width - 1) / s->subsampling[0] + 1;
458 uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
459 uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
460 if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) {
461 for (i = 0; i < w; i++) {
462 for (j = 0; j < s->subsampling[1]; j++)
463 for (k = 0; k < s->subsampling[0]; k++)
464 p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] +
465 FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++;
470 for (i = 0; i < w; i++) {
471 for (j = 0; j < s->subsampling[1]; j++)
472 for (k = 0; k < s->subsampling[0]; k++)
473 p->data[0][(lnum + j) * p->linesize[0] +
474 i * s->subsampling[0] + k] = *src++;
482 static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
485 z_stream zstream = { 0 };
488 zstream.next_in = src;
489 zstream.avail_in = size;
490 zstream.next_out = dst;
491 zstream.avail_out = *len;
492 zret = inflateInit(&zstream);
494 av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
497 zret = inflate(&zstream, Z_SYNC_FLUSH);
498 inflateEnd(&zstream);
499 *len = zstream.total_out;
500 return zret == Z_STREAM_END ? Z_OK : zret;
503 static int tiff_unpack_zlib(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
504 const uint8_t *src, int size, int width, int lines,
505 int strip_start, int is_yuv)
508 unsigned long outlen;
510 outlen = width * lines;
511 zbuf = av_malloc(outlen);
513 return AVERROR(ENOMEM);
515 if ((ret = deinvert_buffer(s, src, size)) < 0) {
519 src = s->deinvert_buf;
521 ret = tiff_uncompress(zbuf, &outlen, src, size);
523 av_log(s->avctx, AV_LOG_ERROR,
524 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
525 (unsigned long)width * lines, ret);
527 return AVERROR_UNKNOWN;
530 for (line = 0; line < lines; line++) {
531 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
532 horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
534 memcpy(dst, src, width);
537 unpack_yuv(s, p, dst, strip_start + line);
538 line += s->subsampling[1] - 1;
549 static int tiff_uncompress_lzma(uint8_t *dst, uint64_t *len, const uint8_t *src,
552 lzma_stream stream = LZMA_STREAM_INIT;
555 stream.next_in = (uint8_t *)src;
556 stream.avail_in = size;
557 stream.next_out = dst;
558 stream.avail_out = *len;
559 ret = lzma_stream_decoder(&stream, UINT64_MAX, 0);
560 if (ret != LZMA_OK) {
561 av_log(NULL, AV_LOG_ERROR, "LZMA init error: %d\n", ret);
564 ret = lzma_code(&stream, LZMA_RUN);
566 *len = stream.total_out;
567 return ret == LZMA_STREAM_END ? LZMA_OK : ret;
570 static int tiff_unpack_lzma(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
571 const uint8_t *src, int size, int width, int lines,
572 int strip_start, int is_yuv)
574 uint64_t outlen = width * (uint64_t)lines;
576 uint8_t *buf = av_malloc(outlen);
578 return AVERROR(ENOMEM);
580 if ((ret = deinvert_buffer(s, src, size)) < 0) {
584 src = s->deinvert_buf;
586 ret = tiff_uncompress_lzma(buf, &outlen, src, size);
587 if (ret != LZMA_OK) {
588 av_log(s->avctx, AV_LOG_ERROR,
589 "Uncompressing failed (%"PRIu64" of %"PRIu64") with error %d\n", outlen,
590 (uint64_t)width * lines, ret);
592 return AVERROR_UNKNOWN;
595 for (line = 0; line < lines; line++) {
596 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
597 horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0);
599 memcpy(dst, src, width);
602 unpack_yuv(s, p, dst, strip_start + line);
603 line += s->subsampling[1] - 1;
613 static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
614 const uint8_t *src, int size, int width, int lines)
620 if ((ret = deinvert_buffer(s, src, size)) < 0)
622 src = s->deinvert_buf;
624 ret = ff_ccitt_unpack(s->avctx, src, size, dst, lines, stride,
625 s->compr, s->fax_opts);
626 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
627 for (line = 0; line < lines; line++) {
628 horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
634 static int dng_decode_jpeg(AVCodecContext *avctx, AVFrame *frame,
635 int tile_byte_count, int dst_x, int dst_y, int w, int h)
637 TiffContext *s = avctx->priv_data;
638 uint8_t *dst_data, *src_data;
639 uint32_t dst_offset; /* offset from dst buffer in pixels */
640 int is_single_comp, is_u16, pixel_size;
643 if (tile_byte_count < 0 || tile_byte_count > bytestream2_get_bytes_left(&s->gb))
644 return AVERROR_INVALIDDATA;
646 /* Prepare a packet and send to the MJPEG decoder */
647 av_packet_unref(s->jpkt);
648 s->jpkt->data = (uint8_t*)s->gb.buffer;
649 s->jpkt->size = tile_byte_count;
652 MJpegDecodeContext *mjpegdecctx = s->avctx_mjpeg->priv_data;
653 /* We have to set this information here, there is no way to know if a given JPEG is a DNG-embedded
654 image or not from its own data (and we need that information when decoding it). */
655 mjpegdecctx->bayer = 1;
658 ret = avcodec_send_packet(s->avctx_mjpeg, s->jpkt);
660 av_log(avctx, AV_LOG_ERROR, "Error submitting a packet for decoding\n");
664 ret = avcodec_receive_frame(s->avctx_mjpeg, s->jpgframe);
666 av_log(avctx, AV_LOG_ERROR, "JPEG decoding error: %s.\n", av_err2str(ret));
668 /* Normally skip, error if explode */
669 if (avctx->err_recognition & AV_EF_EXPLODE)
670 return AVERROR_INVALIDDATA;
675 is_u16 = (s->bpp > 8);
677 /* Copy the outputted tile's pixels from 'jpgframe' to 'frame' (final buffer) */
679 if (s->jpgframe->width != s->avctx_mjpeg->width ||
680 s->jpgframe->height != s->avctx_mjpeg->height ||
681 s->jpgframe->format != s->avctx_mjpeg->pix_fmt)
682 return AVERROR_INVALIDDATA;
684 /* See dng_blit for explanation */
685 if (s->avctx_mjpeg->width == w * 2 &&
686 s->avctx_mjpeg->height == h / 2 &&
687 s->avctx_mjpeg->pix_fmt == AV_PIX_FMT_GRAY16LE) {
689 } else if (s->avctx_mjpeg->width >= w &&
690 s->avctx_mjpeg->height >= h &&
691 s->avctx_mjpeg->pix_fmt == (is_u16 ? AV_PIX_FMT_GRAY16 : AV_PIX_FMT_GRAY8)
695 return AVERROR_INVALIDDATA;
697 pixel_size = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
699 if (is_single_comp && !is_u16) {
700 av_log(s->avctx, AV_LOG_ERROR, "DNGs with bpp <= 8 and 1 component are unsupported\n");
701 av_frame_unref(s->jpgframe);
702 return AVERROR_PATCHWELCOME;
705 dst_offset = dst_x + frame->linesize[0] * dst_y / pixel_size;
706 dst_data = frame->data[0] + dst_offset * pixel_size;
707 src_data = s->jpgframe->data[0];
711 frame->linesize[0] / pixel_size,
713 s->jpgframe->linesize[0] / pixel_size,
719 av_frame_unref(s->jpgframe);
724 static int dng_decode_strip(AVCodecContext *avctx, AVFrame *frame)
726 TiffContext *s = avctx->priv_data;
728 s->jpgframe->width = s->width;
729 s->jpgframe->height = s->height;
731 s->avctx_mjpeg->width = s->width;
732 s->avctx_mjpeg->height = s->height;
734 return dng_decode_jpeg(avctx, frame, s->stripsize, 0, 0, s->width, s->height);
737 static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride,
738 const uint8_t *src, int size, int strip_start, int lines)
741 int c, line, pixels, code, ret;
742 const uint8_t *ssrc = src;
743 int width = ((s->width * s->bpp) + 7) >> 3;
744 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(p->format);
745 int is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) &&
746 (desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
747 desc->nb_components >= 3;
751 width /= s->bppcount;
754 return AVERROR_INVALIDDATA;
757 int bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
758 s->subsampling[0] * s->subsampling[1] + 7) >> 3;
759 av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row);
760 if (s->yuv_line == NULL) {
761 av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
762 return AVERROR(ENOMEM);
767 width = (s->width - 1) / s->subsampling[0] + 1;
768 width = width * s->subsampling[0] * s->subsampling[1] + 2*width;
769 av_assert0(width <= bytes_per_row);
770 av_assert0(s->bpp == 24);
773 av_assert0(width == (s->bpp * s->width + 7) >> 3);
775 if (p->format == AV_PIX_FMT_GRAY12) {
776 av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, width);
777 if (s->yuv_line == NULL) {
778 av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
779 return AVERROR(ENOMEM);
785 if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
787 return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines,
788 strip_start, is_yuv);
790 av_log(s->avctx, AV_LOG_ERROR,
791 "zlib support not enabled, "
792 "deflate compression not supported\n");
793 return AVERROR(ENOSYS);
796 if (s->compr == TIFF_LZMA) {
798 return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
799 strip_start, is_yuv);
801 av_log(s->avctx, AV_LOG_ERROR,
802 "LZMA support not enabled\n");
803 return AVERROR(ENOSYS);
806 if (s->compr == TIFF_LZW) {
808 if ((ret = deinvert_buffer(s, src, size)) < 0)
810 ssrc = src = s->deinvert_buf;
812 if (size > 1 && !src[0] && (src[1]&1)) {
813 av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n");
815 if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) {
816 av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
819 for (line = 0; line < lines; line++) {
820 pixels = ff_lzw_decode(s->lzw, dst, width);
821 if (pixels < width) {
822 av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
824 return AVERROR_INVALIDDATA;
826 if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
827 horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0);
829 unpack_yuv(s, p, dst, strip_start + line);
830 line += s->subsampling[1] - 1;
831 } else if (p->format == AV_PIX_FMT_GRAY12) {
832 unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
838 if (s->compr == TIFF_CCITT_RLE ||
839 s->compr == TIFF_G3 ||
840 s->compr == TIFF_G4) {
841 if (is_yuv || p->format == AV_PIX_FMT_GRAY12)
842 return AVERROR_INVALIDDATA;
844 return tiff_unpack_fax(s, dst, stride, src, size, width, lines);
847 bytestream2_init(&s->gb, src, size);
848 bytestream2_init_writer(&pb, dst, is_yuv ? s->yuv_line_size : (stride * lines));
850 is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
852 /* Decode JPEG-encoded DNGs with strips */
853 if (s->compr == TIFF_NEWJPEG && is_dng) {
855 av_log(s->avctx, AV_LOG_ERROR, "More than one DNG JPEG strips unsupported\n");
856 return AVERROR_PATCHWELCOME;
858 if ((ret = dng_decode_strip(s->avctx, p)) < 0)
863 if (is_dng && stride == 0)
864 return AVERROR_INVALIDDATA;
866 for (line = 0; line < lines; line++) {
867 if (src - ssrc > size) {
868 av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
869 return AVERROR_INVALIDDATA;
872 if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb))
874 bytestream2_seek_p(&pb, stride * line, SEEK_SET);
877 if (ssrc + size - src < width)
878 return AVERROR_INVALIDDATA;
880 if (!s->fill_order) {
881 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 || s->is_bayer),
882 dst, 1, src, 0, width, 0);
885 for (i = 0; i < width; i++)
886 dst[i] = ff_reverse[src[i]];
889 /* Color processing for DNG images with uncompressed strips (non-tiled) */
891 int is_u16, pixel_size_bytes, pixel_size_bits, elements;
893 is_u16 = (s->bpp / s->bppcount > 8);
894 pixel_size_bits = (is_u16 ? 16 : 8);
895 pixel_size_bytes = (is_u16 ? sizeof(uint16_t) : sizeof(uint8_t));
897 elements = width / pixel_size_bytes * pixel_size_bits / s->bpp * s->bppcount; // need to account for [1, 16] bpp
898 av_assert0 (elements * pixel_size_bytes <= FFABS(stride));
901 0, // no stride, only 1 line
903 0, // no stride, only 1 line
906 0, // single-component variation is only preset in JPEG-encoded DNGs
913 for (pixels = 0; pixels < width;) {
914 if (ssrc + size - src < 2) {
915 av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
916 return AVERROR_INVALIDDATA;
918 code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++;
921 if (pixels + code > width ||
922 ssrc + size - src < code) {
923 av_log(s->avctx, AV_LOG_ERROR,
924 "Copy went out of bounds\n");
925 return AVERROR_INVALIDDATA;
927 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
928 dst, 1, src, 0, code, pixels);
931 } else if (code != -128) { // -127..-1
933 if (pixels + code > width) {
934 av_log(s->avctx, AV_LOG_ERROR,
935 "Run went out of bounds\n");
936 return AVERROR_INVALIDDATA;
939 horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8),
940 dst, 0, NULL, c, code, pixels);
946 for (i = 0; i < width; i++)
947 dst[i] = ff_reverse[dst[i]];
952 unpack_yuv(s, p, dst, strip_start + line);
953 line += s->subsampling[1] - 1;
954 } else if (p->format == AV_PIX_FMT_GRAY12) {
955 unpack_gray(s, p, dst, strip_start + line, width, s->bpp);
962 static int dng_decode_tiles(AVCodecContext *avctx, AVFrame *frame,
963 const AVPacket *avpkt)
965 TiffContext *s = avctx->priv_data;
967 int tile_offset_offset, tile_offset;
968 int tile_byte_count_offset, tile_byte_count;
969 int tile_count_x, tile_count_y;
970 int tile_width, tile_length;
971 int has_width_leftover, has_height_leftover;
972 int tile_x = 0, tile_y = 0;
973 int pos_x = 0, pos_y = 0;
976 s->jpgframe->width = s->tile_width;
977 s->jpgframe->height = s->tile_length;
979 s->avctx_mjpeg->width = s->tile_width;
980 s->avctx_mjpeg->height = s->tile_length;
982 has_width_leftover = (s->width % s->tile_width != 0);
983 has_height_leftover = (s->height % s->tile_length != 0);
985 /* Calculate tile counts (round up) */
986 tile_count_x = (s->width + s->tile_width - 1) / s->tile_width;
987 tile_count_y = (s->height + s->tile_length - 1) / s->tile_length;
989 /* Iterate over the number of tiles */
990 for (tile_idx = 0; tile_idx < s->tile_count; tile_idx++) {
991 tile_x = tile_idx % tile_count_x;
992 tile_y = tile_idx / tile_count_x;
994 if (has_width_leftover && tile_x == tile_count_x - 1) // If on the right-most tile
995 tile_width = s->width % s->tile_width;
997 tile_width = s->tile_width;
999 if (has_height_leftover && tile_y == tile_count_y - 1) // If on the bottom-most tile
1000 tile_length = s->height % s->tile_length;
1002 tile_length = s->tile_length;
1004 /* Read tile offset */
1005 tile_offset_offset = s->tile_offsets_offset + tile_idx * sizeof(int);
1006 bytestream2_seek(&s->gb, tile_offset_offset, SEEK_SET);
1007 tile_offset = ff_tget_long(&s->gb, s->le);
1009 /* Read tile byte size */
1010 tile_byte_count_offset = s->tile_byte_counts_offset + tile_idx * sizeof(int);
1011 bytestream2_seek(&s->gb, tile_byte_count_offset, SEEK_SET);
1012 tile_byte_count = ff_tget_long(&s->gb, s->le);
1014 /* Seek to tile data */
1015 bytestream2_seek(&s->gb, tile_offset, SEEK_SET);
1017 /* Decode JPEG tile and copy it in the reference frame */
1018 ret = dng_decode_jpeg(avctx, frame, tile_byte_count, pos_x, pos_y, tile_width, tile_length);
1023 /* Advance current positions */
1024 pos_x += tile_width;
1025 if (tile_x == tile_count_x - 1) { // If on the right edge
1027 pos_y += tile_length;
1031 /* Frame is ready to be output */
1032 frame->pict_type = AV_PICTURE_TYPE_I;
1033 frame->key_frame = 1;
1038 static int init_image(TiffContext *s, ThreadFrame *frame)
1041 int create_gray_palette = 0;
1043 // make sure there is no aliasing in the following switch
1044 if (s->bpp >= 100 || s->bppcount >= 10) {
1045 av_log(s->avctx, AV_LOG_ERROR,
1046 "Unsupported image parameters: bpp=%d, bppcount=%d\n",
1047 s->bpp, s->bppcount);
1048 return AVERROR_INVALIDDATA;
1051 switch (s->planar * 1000 + s->bpp * 10 + s->bppcount + s->is_bayer * 10000) {
1053 if (!s->palette_is_set) {
1054 s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
1059 s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
1060 if (!s->palette_is_set) {
1061 create_gray_palette = 1;
1065 s->avctx->pix_fmt = s->palette_is_set ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_GRAY8;
1068 s->avctx->pix_fmt = AV_PIX_FMT_GRAY12;
1071 switch (AV_RL32(s->pattern)) {
1073 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB8;
1076 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR8;
1079 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG8;
1082 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG8;
1085 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1086 AV_RL32(s->pattern));
1087 return AVERROR_PATCHWELCOME;
1094 switch (AV_RL32(s->pattern)) {
1096 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB16;
1099 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR16;
1102 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG16;
1105 s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG16;
1108 av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n",
1109 AV_RL32(s->pattern));
1110 return AVERROR_PATCHWELCOME;
1114 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1115 if (s->subsampling[0] == 1 && s->subsampling[1] == 1) {
1116 s->avctx->pix_fmt = AV_PIX_FMT_YUV444P;
1117 } else if (s->subsampling[0] == 2 && s->subsampling[1] == 1) {
1118 s->avctx->pix_fmt = AV_PIX_FMT_YUV422P;
1119 } else if (s->subsampling[0] == 4 && s->subsampling[1] == 1) {
1120 s->avctx->pix_fmt = AV_PIX_FMT_YUV411P;
1121 } else if (s->subsampling[0] == 1 && s->subsampling[1] == 2) {
1122 s->avctx->pix_fmt = AV_PIX_FMT_YUV440P;
1123 } else if (s->subsampling[0] == 2 && s->subsampling[1] == 2) {
1124 s->avctx->pix_fmt = AV_PIX_FMT_YUV420P;
1125 } else if (s->subsampling[0] == 4 && s->subsampling[1] == 4) {
1126 s->avctx->pix_fmt = AV_PIX_FMT_YUV410P;
1128 av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr subsampling\n");
1129 return AVERROR_PATCHWELCOME;
1132 s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
1135 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE;
1138 s->avctx->pix_fmt = AV_PIX_FMT_YA8;
1141 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_YA16LE : AV_PIX_FMT_YA16BE;
1144 s->avctx->pix_fmt = s->photometric == TIFF_PHOTOMETRIC_SEPARATED ? AV_PIX_FMT_RGB0 : AV_PIX_FMT_RGBA;
1147 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED)
1148 s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
1150 av_log(s->avctx, AV_LOG_ERROR,
1151 "bpp=40 without PHOTOMETRIC_SEPARATED is unsupported\n");
1152 return AVERROR_PATCHWELCOME;
1156 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
1159 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
1162 s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
1165 s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
1168 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE;
1171 s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE;
1174 av_log(s->avctx, AV_LOG_ERROR,
1175 "This format is not supported (bpp=%d, bppcount=%d)\n",
1176 s->bpp, s->bppcount);
1177 return AVERROR_INVALIDDATA;
1180 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
1181 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
1182 if((desc->flags & AV_PIX_FMT_FLAG_RGB) ||
1183 !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) ||
1184 desc->nb_components < 3) {
1185 av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr variant\n");
1186 return AVERROR_INVALIDDATA;
1190 if (s->width != s->avctx->width || s->height != s->avctx->height) {
1191 ret = ff_set_dimensions(s->avctx, s->width, s->height);
1195 if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0)
1197 if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) {
1198 if (!create_gray_palette)
1199 memcpy(frame->f->data[1], s->palette, sizeof(s->palette));
1201 /* make default grayscale pal */
1203 uint32_t *pal = (uint32_t *)frame->f->data[1];
1204 for (i = 0; i < 1<<s->bpp; i++)
1205 pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
1211 static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
1213 int offset = tag == TIFF_YRES ? 2 : 0;
1214 s->res[offset++] = num;
1215 s->res[offset] = den;
1216 if (s->res[0] && s->res[1] && s->res[2] && s->res[3]) {
1217 uint64_t num = s->res[2] * (uint64_t)s->res[1];
1218 uint64_t den = s->res[0] * (uint64_t)s->res[3];
1219 if (num > INT64_MAX || den > INT64_MAX) {
1223 av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den,
1224 num, den, INT32_MAX);
1225 if (!s->avctx->sample_aspect_ratio.den)
1226 s->avctx->sample_aspect_ratio = (AVRational) {0, 1};
1230 static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
1232 AVFrameSideData *sd;
1233 GetByteContext gb_temp;
1234 unsigned tag, type, count, off, value = 0, value2 = 1; // value2 is a denominator so init. to 1
1240 ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
1244 if (tag <= s->last_tag)
1245 return AVERROR_INVALIDDATA;
1247 // We ignore TIFF_STRIP_SIZE as it is sometimes in the logic but wrong order around TIFF_STRIP_OFFS
1248 if (tag != TIFF_STRIP_SIZE)
1251 off = bytestream2_tell(&s->gb);
1257 value = ff_tget(&s->gb, type, s->le);
1260 value = ff_tget(&s->gb, TIFF_LONG, s->le);
1261 value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
1263 av_log(s->avctx, AV_LOG_ERROR, "Invalid denominator in rational\n");
1264 return AVERROR_INVALIDDATA;
1279 s->is_thumbnail = (value != 0);
1288 if (count > 5 || count <= 0) {
1289 av_log(s->avctx, AV_LOG_ERROR,
1290 "This format is not supported (bpp=%d, %d components)\n",
1292 return AVERROR_INVALIDDATA;
1294 s->bppcount = count;
1303 if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
1304 return AVERROR_INVALIDDATA;
1305 for (i = 0; i < count; i++)
1306 s->bpp += ff_tget(&s->gb, type, s->le);
1313 case TIFF_SAMPLES_PER_PIXEL:
1315 av_log(s->avctx, AV_LOG_ERROR,
1316 "Samples per pixel requires a single value, many provided\n");
1317 return AVERROR_INVALIDDATA;
1319 if (value > 5 || value <= 0) {
1320 av_log(s->avctx, AV_LOG_ERROR,
1321 "Invalid samples per pixel %d\n", value);
1322 return AVERROR_INVALIDDATA;
1324 if (s->bppcount == 1)
1326 s->bppcount = value;
1330 av_log(s->avctx, AV_LOG_DEBUG, "compression: %d\n", s->compr);
1336 case TIFF_CCITT_RLE:
1343 case TIFF_ADOBE_DEFLATE:
1347 av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
1348 return AVERROR(ENOSYS);
1358 av_log(s->avctx, AV_LOG_ERROR, "LZMA not compiled in\n");
1359 return AVERROR(ENOSYS);
1362 av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
1364 return AVERROR_INVALIDDATA;
1367 case TIFF_ROWSPERSTRIP:
1368 if (!value || (type == TIFF_LONG && value == UINT_MAX))
1370 s->rps = FFMIN(value, s->height);
1372 case TIFF_STRIP_OFFS:
1374 if (value > INT_MAX) {
1375 av_log(s->avctx, AV_LOG_ERROR,
1376 "strippos %u too large\n", value);
1377 return AVERROR_INVALIDDATA;
1380 s->stripoff = value;
1388 case TIFF_STRIP_SIZE:
1390 if (value > INT_MAX) {
1391 av_log(s->avctx, AV_LOG_ERROR,
1392 "stripsize %u too large\n", value);
1393 return AVERROR_INVALIDDATA;
1395 s->stripsizesoff = 0;
1396 s->stripsize = value;
1399 s->stripsizesoff = off;
1406 set_sar(s, tag, value, value2);
1408 case TIFF_TILE_OFFSETS:
1409 s->tile_offsets_offset = off;
1410 s->tile_count = count;
1413 case TIFF_TILE_BYTE_COUNTS:
1414 s->tile_byte_counts_offset = off;
1416 case TIFF_TILE_LENGTH:
1417 s->tile_length = value;
1419 case TIFF_TILE_WIDTH:
1420 s->tile_width = value;
1422 case TIFF_PREDICTOR:
1423 s->predictor = value;
1429 s->sub_ifd = ff_tget(&s->gb, TIFF_LONG, s->le); /** Only get the first SubIFD */
1431 case DNG_LINEARIZATION_TABLE:
1432 if (count > FF_ARRAY_ELEMS(s->dng_lut))
1433 return AVERROR_INVALIDDATA;
1434 for (int i = 0; i < count; i++)
1435 s->dng_lut[i] = ff_tget(&s->gb, type, s->le);
1437 case DNG_BLACK_LEVEL:
1438 if (count > 1) { /* Use the first value in the pattern (assume they're all the same) */
1439 if (type == TIFF_RATIONAL) {
1440 value = ff_tget(&s->gb, TIFF_LONG, s->le);
1441 value2 = ff_tget(&s->gb, TIFF_LONG, s->le);
1443 av_log(s->avctx, AV_LOG_ERROR, "Invalid black level denominator\n");
1444 return AVERROR_INVALIDDATA;
1447 s->black_level = value / value2;
1449 s->black_level = ff_tget(&s->gb, type, s->le);
1450 av_log(s->avctx, AV_LOG_WARNING, "Assuming black level pattern values are identical\n");
1452 s->black_level = value / value2;
1455 case DNG_WHITE_LEVEL:
1456 s->white_level = value;
1458 case TIFF_CFA_PATTERN_DIM:
1459 if (count != 2 || (ff_tget(&s->gb, type, s->le) != 2 &&
1460 ff_tget(&s->gb, type, s->le) != 2)) {
1461 av_log(s->avctx, AV_LOG_ERROR, "CFA Pattern dimensions are not 2x2\n");
1462 return AVERROR_INVALIDDATA;
1465 case TIFF_CFA_PATTERN:
1467 s->pattern[0] = ff_tget(&s->gb, type, s->le);
1468 s->pattern[1] = ff_tget(&s->gb, type, s->le);
1469 s->pattern[2] = ff_tget(&s->gb, type, s->le);
1470 s->pattern[3] = ff_tget(&s->gb, type, s->le);
1472 case TIFF_PHOTOMETRIC:
1474 case TIFF_PHOTOMETRIC_WHITE_IS_ZERO:
1475 case TIFF_PHOTOMETRIC_BLACK_IS_ZERO:
1476 case TIFF_PHOTOMETRIC_RGB:
1477 case TIFF_PHOTOMETRIC_PALETTE:
1478 case TIFF_PHOTOMETRIC_SEPARATED:
1479 case TIFF_PHOTOMETRIC_YCBCR:
1480 case TIFF_PHOTOMETRIC_CFA:
1481 case TIFF_PHOTOMETRIC_LINEAR_RAW: // Used by DNG images
1482 s->photometric = value;
1484 case TIFF_PHOTOMETRIC_ALPHA_MASK:
1485 case TIFF_PHOTOMETRIC_CIE_LAB:
1486 case TIFF_PHOTOMETRIC_ICC_LAB:
1487 case TIFF_PHOTOMETRIC_ITU_LAB:
1488 case TIFF_PHOTOMETRIC_LOG_L:
1489 case TIFF_PHOTOMETRIC_LOG_LUV:
1490 avpriv_report_missing_feature(s->avctx,
1491 "PhotometricInterpretation 0x%04X",
1493 return AVERROR_PATCHWELCOME;
1495 av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is "
1496 "unknown\n", value);
1497 return AVERROR_INVALIDDATA;
1500 case TIFF_FILL_ORDER:
1501 if (value < 1 || value > 2) {
1502 av_log(s->avctx, AV_LOG_ERROR,
1503 "Unknown FillOrder value %d, trying default one\n", value);
1506 s->fill_order = value - 1;
1509 GetByteContext pal_gb[3];
1510 off = type_sizes[type];
1511 if (count / 3 > 256 ||
1512 bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
1513 return AVERROR_INVALIDDATA;
1515 pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb;
1516 bytestream2_skip(&pal_gb[1], count / 3 * off);
1517 bytestream2_skip(&pal_gb[2], count / 3 * off * 2);
1519 off = (type_sizes[type] - 1) << 3;
1521 av_log(s->avctx, AV_LOG_ERROR, "palette shift %d is out of range\n", off);
1522 return AVERROR_INVALIDDATA;
1525 for (i = 0; i < count / 3; i++) {
1526 uint32_t p = 0xFF000000;
1527 p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16;
1528 p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8;
1529 p |= ff_tget(&pal_gb[2], type, s->le) >> off;
1532 s->palette_is_set = 1;
1536 s->planar = value == 2;
1538 case TIFF_YCBCR_SUBSAMPLING:
1540 av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n");
1541 return AVERROR_INVALIDDATA;
1543 for (i = 0; i < count; i++) {
1544 s->subsampling[i] = ff_tget(&s->gb, type, s->le);
1545 if (s->subsampling[i] <= 0) {
1546 av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]);
1547 s->subsampling[i] = 1;
1548 return AVERROR_INVALIDDATA;
1552 case TIFF_T4OPTIONS:
1553 if (s->compr == TIFF_G3)
1554 s->fax_opts = value;
1556 case TIFF_T6OPTIONS:
1557 if (s->compr == TIFF_G4)
1558 s->fax_opts = value;
1560 #define ADD_METADATA(count, name, sep)\
1561 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\
1562 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
1565 case TIFF_MODEL_PIXEL_SCALE:
1566 ADD_METADATA(count, "ModelPixelScaleTag", NULL);
1568 case TIFF_MODEL_TRANSFORMATION:
1569 ADD_METADATA(count, "ModelTransformationTag", NULL);
1571 case TIFF_MODEL_TIEPOINT:
1572 ADD_METADATA(count, "ModelTiepointTag", NULL);
1574 case TIFF_GEO_KEY_DIRECTORY:
1575 if (s->geotag_count) {
1576 avpriv_request_sample(s->avctx, "Multiple geo key directories");
1577 return AVERROR_INVALIDDATA;
1579 ADD_METADATA(1, "GeoTIFF_Version", NULL);
1580 ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
1581 s->geotag_count = ff_tget_short(&s->gb, s->le);
1582 if (s->geotag_count > count / 4 - 1) {
1583 s->geotag_count = count / 4 - 1;
1584 av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n");
1586 if ( bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4
1587 || s->geotag_count == 0) {
1588 s->geotag_count = 0;
1591 s->geotags = av_mallocz_array(s->geotag_count, sizeof(TiffGeoTag));
1593 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1594 s->geotag_count = 0;
1597 for (i = 0; i < s->geotag_count; i++) {
1598 s->geotags[i].key = ff_tget_short(&s->gb, s->le);
1599 s->geotags[i].type = ff_tget_short(&s->gb, s->le);
1600 s->geotags[i].count = ff_tget_short(&s->gb, s->le);
1602 if (!s->geotags[i].type)
1603 s->geotags[i].val = get_geokey_val(s->geotags[i].key, ff_tget_short(&s->gb, s->le));
1605 s->geotags[i].offset = ff_tget_short(&s->gb, s->le);
1608 case TIFF_GEO_DOUBLE_PARAMS:
1609 if (count >= INT_MAX / sizeof(int64_t))
1610 return AVERROR_INVALIDDATA;
1611 if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
1612 return AVERROR_INVALIDDATA;
1613 dp = av_malloc_array(count, sizeof(double));
1615 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1618 for (i = 0; i < count; i++)
1619 dp[i] = ff_tget_double(&s->gb, s->le);
1620 for (i = 0; i < s->geotag_count; i++) {
1621 if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) {
1622 if (s->geotags[i].count == 0
1623 || s->geotags[i].offset + s->geotags[i].count > count) {
1624 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1625 } else if (s->geotags[i].val) {
1626 av_log(s->avctx, AV_LOG_WARNING, "Duplicate GeoTIFF key %d\n", s->geotags[i].key);
1628 char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", ");
1630 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1632 return AVERROR(ENOMEM);
1634 s->geotags[i].val = ap;
1640 case TIFF_GEO_ASCII_PARAMS:
1641 pos = bytestream2_tell(&s->gb);
1642 for (i = 0; i < s->geotag_count; i++) {
1643 if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) {
1644 if (s->geotags[i].count == 0
1645 || s->geotags[i].offset + s->geotags[i].count > count) {
1646 av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key);
1650 bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET);
1651 if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count)
1652 return AVERROR_INVALIDDATA;
1653 if (s->geotags[i].val)
1654 return AVERROR_INVALIDDATA;
1655 ap = av_malloc(s->geotags[i].count);
1657 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
1658 return AVERROR(ENOMEM);
1660 bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
1661 ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
1662 s->geotags[i].val = ap;
1667 case TIFF_ICC_PROFILE:
1669 bytestream2_seek(&gb_temp, SEEK_SET, off);
1671 if (bytestream2_get_bytes_left(&gb_temp) < count)
1672 return AVERROR_INVALIDDATA;
1674 sd = av_frame_new_side_data(frame, AV_FRAME_DATA_ICC_PROFILE, count);
1676 return AVERROR(ENOMEM);
1678 bytestream2_get_bufferu(&gb_temp, sd->data, count);
1681 ADD_METADATA(count, "artist", NULL);
1683 case TIFF_COPYRIGHT:
1684 ADD_METADATA(count, "copyright", NULL);
1687 ADD_METADATA(count, "date", NULL);
1689 case TIFF_DOCUMENT_NAME:
1690 ADD_METADATA(count, "document_name", NULL);
1692 case TIFF_HOST_COMPUTER:
1693 ADD_METADATA(count, "computer", NULL);
1695 case TIFF_IMAGE_DESCRIPTION:
1696 ADD_METADATA(count, "description", NULL);
1699 ADD_METADATA(count, "make", NULL);
1702 ADD_METADATA(count, "model", NULL);
1704 case TIFF_PAGE_NAME:
1705 ADD_METADATA(count, "page_name", NULL);
1707 case TIFF_PAGE_NUMBER:
1708 ADD_METADATA(count, "page_number", " / ");
1709 // need to seek back to re-read the page number
1710 bytestream2_seek(&s->gb, -count * sizeof(uint16_t), SEEK_CUR);
1711 // read the page number
1712 s->cur_page = ff_tget(&s->gb, TIFF_SHORT, s->le);
1713 // get back to where we were before the previous seek
1714 bytestream2_seek(&s->gb, count * sizeof(uint16_t) - sizeof(uint16_t), SEEK_CUR);
1716 case TIFF_SOFTWARE_NAME:
1717 ADD_METADATA(count, "software", NULL);
1721 unsigned int ver[4];
1722 ver[0] = ff_tget(&s->gb, type, s->le);
1723 ver[1] = ff_tget(&s->gb, type, s->le);
1724 ver[2] = ff_tget(&s->gb, type, s->le);
1725 ver[3] = ff_tget(&s->gb, type, s->le);
1727 av_log(s->avctx, AV_LOG_DEBUG, "DNG file, version %u.%u.%u.%u\n",
1728 ver[0], ver[1], ver[2], ver[3]);
1730 tiff_set_type(s, TIFF_TYPE_DNG);
1733 case CINEMADNG_TIME_CODES:
1734 case CINEMADNG_FRAME_RATE:
1735 case CINEMADNG_T_STOP:
1736 case CINEMADNG_REEL_NAME:
1737 case CINEMADNG_CAMERA_LABEL:
1738 tiff_set_type(s, TIFF_TYPE_CINEMADNG);
1741 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1742 av_log(s->avctx, AV_LOG_ERROR,
1743 "Unknown or unsupported tag %d/0x%0X\n",
1745 return AVERROR_INVALIDDATA;
1750 av_log(s->avctx, AV_LOG_ERROR,
1751 "This format is not supported (bpp=%d, %d components)\n",
1754 return AVERROR_INVALIDDATA;
1756 bytestream2_seek(&s->gb, start, SEEK_SET);
1760 static int decode_frame(AVCodecContext *avctx,
1761 void *data, int *got_frame, AVPacket *avpkt)
1763 TiffContext *const s = avctx->priv_data;
1764 AVFrame *const p = data;
1765 ThreadFrame frame = { .f = data };
1766 unsigned off, last_off;
1767 int le, ret, plane, planes;
1768 int i, j, entries, stride;
1769 unsigned soff, ssize;
1771 GetByteContext stripsizes;
1772 GetByteContext stripdata;
1773 int retry_for_subifd, retry_for_page;
1775 int has_tile_bits, has_strip_bits;
1777 bytestream2_init(&s->gb, avpkt->data, avpkt->size);
1779 // parse image header
1780 if ((ret = ff_tdecode_header(&s->gb, &le, &off))) {
1781 av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n");
1783 } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1784 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1785 return AVERROR_INVALIDDATA;
1788 // TIFF_BPP is not a required tag and defaults to 1
1790 s->tiff_type = TIFF_TYPE_TIFF;
1792 s->is_thumbnail = 0;
1793 s->bppcount = s->bpp = 1;
1794 s->photometric = TIFF_PHOTOMETRIC_NONE;
1795 s->compr = TIFF_RAW;
1804 for (i = 0; i < 65536; i++)
1809 // Reset these offsets so we can tell if they were set this frame
1810 s->stripsizesoff = s->strippos = 0;
1811 /* parse image file directory */
1812 bytestream2_seek(&s->gb, off, SEEK_SET);
1813 entries = ff_tget_short(&s->gb, le);
1814 if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
1815 return AVERROR_INVALIDDATA;
1816 for (i = 0; i < entries; i++) {
1817 if ((ret = tiff_decode_tag(s, p)) < 0)
1821 if (s->get_thumbnail && !s->is_thumbnail) {
1822 av_log(avctx, AV_LOG_INFO, "No embedded thumbnail present\n");
1826 /** whether we should process this IFD's SubIFD */
1827 retry_for_subifd = s->sub_ifd && (s->get_subimage || (!s->get_thumbnail && s->is_thumbnail));
1828 /** whether we should process this multi-page IFD's next page */
1829 retry_for_page = s->get_page && s->cur_page + 1 < s->get_page; // get_page is 1-indexed
1832 if (retry_for_page) {
1833 // set offset to the next IFD
1834 off = ff_tget_long(&s->gb, le);
1835 } else if (retry_for_subifd) {
1836 // set offset to the SubIFD
1840 if (retry_for_subifd || retry_for_page) {
1842 av_log(avctx, AV_LOG_ERROR, "Requested entry not found\n");
1843 return AVERROR_INVALIDDATA;
1845 if (off <= last_off) {
1846 avpriv_request_sample(s->avctx, "non increasing IFD offset");
1847 return AVERROR_INVALIDDATA;
1849 if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
1850 av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
1851 return AVERROR_INVALIDDATA;
1857 /* At this point we've decided on which (Sub)IFD to process */
1859 is_dng = (s->tiff_type == TIFF_TYPE_DNG || s->tiff_type == TIFF_TYPE_CINEMADNG);
1861 for (i = 0; i<s->geotag_count; i++) {
1862 const char *keyname = get_geokey_name(s->geotags[i].key);
1864 av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key);
1867 if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) {
1868 av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key);
1871 ret = av_dict_set(&p->metadata, keyname, s->geotags[i].val, 0);
1873 av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname);
1881 if (s->bpp % s->bppcount)
1882 return AVERROR_INVALIDDATA;
1883 bps = s->bpp / s->bppcount;
1884 if (bps < 8 || bps > 32)
1885 return AVERROR_INVALIDDATA;
1887 if (s->white_level == 0)
1888 s->white_level = (1LL << bps) - 1; /* Default value as per the spec */
1890 if (s->white_level <= s->black_level) {
1891 av_log(avctx, AV_LOG_ERROR, "BlackLevel (%"PRId32") must be less than WhiteLevel (%"PRId32")\n",
1892 s->black_level, s->white_level);
1893 return AVERROR_INVALIDDATA;
1897 return AVERROR_PATCHWELCOME;
1900 if (!s->is_tiled && !s->strippos && !s->stripoff) {
1901 av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
1902 return AVERROR_INVALIDDATA;
1905 has_tile_bits = s->is_tiled || s->tile_byte_counts_offset || s->tile_offsets_offset || s->tile_width || s->tile_length || s->tile_count;
1906 has_strip_bits = s->strippos || s->strips || s->stripoff || s->rps || s->sot || s->sstype || s->stripsize || s->stripsizesoff;
1908 if (has_tile_bits && has_strip_bits) {
1909 int tiled_dng = s->is_tiled && is_dng;
1910 av_log(avctx, tiled_dng ? AV_LOG_WARNING : AV_LOG_ERROR, "Tiled TIFF is not allowed to strip\n");
1912 return AVERROR_INVALIDDATA;
1915 /* now we have the data and may start decoding */
1916 if ((ret = init_image(s, &frame)) < 0)
1919 if (!s->is_tiled || has_strip_bits) {
1920 if (s->strips == 1 && !s->stripsize) {
1921 av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
1922 s->stripsize = avpkt->size - s->stripoff;
1925 if (s->stripsizesoff) {
1926 if (s->stripsizesoff >= (unsigned)avpkt->size)
1927 return AVERROR_INVALIDDATA;
1928 bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff,
1929 avpkt->size - s->stripsizesoff);
1932 if (s->strippos >= (unsigned)avpkt->size)
1933 return AVERROR_INVALIDDATA;
1934 bytestream2_init(&stripdata, avpkt->data + s->strippos,
1935 avpkt->size - s->strippos);
1938 if (s->rps <= 0 || s->rps % s->subsampling[1]) {
1939 av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps);
1940 return AVERROR_INVALIDDATA;
1944 if (s->photometric == TIFF_PHOTOMETRIC_LINEAR_RAW ||
1945 s->photometric == TIFF_PHOTOMETRIC_CFA) {
1946 p->color_trc = AVCOL_TRC_LINEAR;
1947 } else if (s->photometric == TIFF_PHOTOMETRIC_BLACK_IS_ZERO) {
1948 p->color_trc = AVCOL_TRC_GAMMA22;
1951 /* Handle DNG images with JPEG-compressed tiles */
1953 if (is_dng && s->is_tiled) {
1955 avpriv_report_missing_feature(avctx, "DNG uncompressed tiled images");
1956 return AVERROR_PATCHWELCOME;
1957 } else if (!s->is_bayer) {
1958 avpriv_report_missing_feature(avctx, "DNG JPG-compressed tiled non-bayer-encoded images");
1959 return AVERROR_PATCHWELCOME;
1961 if ((ret = dng_decode_tiles(avctx, (AVFrame*)data, avpkt)) > 0)
1967 /* Handle TIFF images and DNG images with uncompressed strips (non-tiled) */
1969 planes = s->planar ? s->bppcount : 1;
1970 for (plane = 0; plane < planes; plane++) {
1971 uint8_t *five_planes = NULL;
1972 int remaining = avpkt->size;
1974 stride = p->linesize[plane];
1975 dst = p->data[plane];
1976 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
1977 s->avctx->pix_fmt == AV_PIX_FMT_RGBA) {
1978 stride = stride * 5 / 4;
1980 dst = av_malloc(stride * s->height);
1982 return AVERROR(ENOMEM);
1984 for (i = 0; i < s->height; i += s->rps) {
1986 dst += s->rps * stride;
1987 if (s->stripsizesoff)
1988 ssize = ff_tget(&stripsizes, s->sstype, le);
1990 ssize = s->stripsize;
1993 soff = ff_tget(&stripdata, s->sot, le);
1997 if (soff > avpkt->size || ssize > avpkt->size - soff || ssize > remaining) {
1998 av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
1999 av_freep(&five_planes);
2000 return AVERROR_INVALIDDATA;
2003 if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i,
2004 FFMIN(s->rps, s->height - i))) < 0) {
2005 if (avctx->err_recognition & AV_EF_EXPLODE) {
2006 av_freep(&five_planes);
2012 decoded_height = FFMIN(i, s->height);
2014 if (s->predictor == 2) {
2015 if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {
2016 av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported");
2017 return AVERROR_PATCHWELCOME;
2019 dst = five_planes ? five_planes : p->data[plane];
2022 soff = FFMAX(soff / s->bppcount, 1);
2023 ssize = s->width * soff;
2024 if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
2025 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE ||
2026 s->avctx->pix_fmt == AV_PIX_FMT_GRAY16LE ||
2027 s->avctx->pix_fmt == AV_PIX_FMT_YA16LE ||
2028 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE ||
2029 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) {
2030 for (i = 0; i < decoded_height; i++) {
2031 for (j = soff; j < ssize; j += 2)
2032 AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
2035 } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
2036 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE ||
2037 s->avctx->pix_fmt == AV_PIX_FMT_GRAY16BE ||
2038 s->avctx->pix_fmt == AV_PIX_FMT_YA16BE ||
2039 s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE ||
2040 s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) {
2041 for (i = 0; i < decoded_height; i++) {
2042 for (j = soff; j < ssize; j += 2)
2043 AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
2047 for (i = 0; i < decoded_height; i++) {
2048 for (j = soff; j < ssize; j++)
2049 dst[j] += dst[j - soff];
2055 if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) {
2056 int c = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255);
2057 dst = p->data[plane];
2058 for (i = 0; i < s->height; i++) {
2059 for (j = 0; j < stride; j++)
2060 dst[j] = c - dst[j];
2065 if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2066 (s->avctx->pix_fmt == AV_PIX_FMT_RGB0 || s->avctx->pix_fmt == AV_PIX_FMT_RGBA)) {
2067 int x = s->avctx->pix_fmt == AV_PIX_FMT_RGB0 ? 4 : 5;
2068 uint8_t *src = five_planes ? five_planes : p->data[plane];
2069 dst = p->data[plane];
2070 for (i = 0; i < s->height; i++) {
2071 for (j = 0; j < s->width; j++) {
2072 int k = 255 - src[x * j + 3];
2073 int r = (255 - src[x * j ]) * k;
2074 int g = (255 - src[x * j + 1]) * k;
2075 int b = (255 - src[x * j + 2]) * k;
2076 dst[4 * j ] = r * 257 >> 16;
2077 dst[4 * j + 1] = g * 257 >> 16;
2078 dst[4 * j + 2] = b * 257 >> 16;
2079 dst[4 * j + 3] = s->avctx->pix_fmt == AV_PIX_FMT_RGBA ? src[x * j + 4] : 255;
2082 dst += p->linesize[plane];
2084 av_freep(&five_planes);
2085 } else if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED &&
2086 s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) {
2087 dst = p->data[plane];
2088 for (i = 0; i < s->height; i++) {
2089 for (j = 0; j < s->width; j++) {
2090 uint64_t k = 65535 - AV_RB16(dst + 8 * j + 6);
2091 uint64_t r = (65535 - AV_RB16(dst + 8 * j )) * k;
2092 uint64_t g = (65535 - AV_RB16(dst + 8 * j + 2)) * k;
2093 uint64_t b = (65535 - AV_RB16(dst + 8 * j + 4)) * k;
2094 AV_WB16(dst + 8 * j , r * 65537 >> 32);
2095 AV_WB16(dst + 8 * j + 2, g * 65537 >> 32);
2096 AV_WB16(dst + 8 * j + 4, b * 65537 >> 32);
2097 AV_WB16(dst + 8 * j + 6, 65535);
2099 dst += p->linesize[plane];
2104 if (s->planar && s->bppcount > 2) {
2105 FFSWAP(uint8_t*, p->data[0], p->data[2]);
2106 FFSWAP(int, p->linesize[0], p->linesize[2]);
2107 FFSWAP(uint8_t*, p->data[0], p->data[1]);
2108 FFSWAP(int, p->linesize[0], p->linesize[1]);
2111 if (s->is_bayer && s->white_level && s->bpp == 16 && !is_dng) {
2112 uint16_t *dst = (uint16_t *)p->data[0];
2113 for (i = 0; i < s->height; i++) {
2114 for (j = 0; j < s->width; j++)
2115 dst[j] = FFMIN((dst[j] / (float)s->white_level) * 65535, 65535);
2125 static av_cold int tiff_init(AVCodecContext *avctx)
2127 TiffContext *s = avctx->priv_data;
2128 const AVCodec *codec;
2134 s->subsampling[1] = 1;
2136 ff_lzw_decode_open(&s->lzw);
2138 return AVERROR(ENOMEM);
2139 ff_ccitt_unpack_init();
2141 /* Allocate JPEG frame */
2142 s->jpgframe = av_frame_alloc();
2143 s->jpkt = av_packet_alloc();
2144 if (!s->jpgframe || !s->jpkt)
2145 return AVERROR(ENOMEM);
2147 /* Prepare everything needed for JPEG decoding */
2148 codec = avcodec_find_decoder(AV_CODEC_ID_MJPEG);
2151 s->avctx_mjpeg = avcodec_alloc_context3(codec);
2152 if (!s->avctx_mjpeg)
2153 return AVERROR(ENOMEM);
2154 s->avctx_mjpeg->flags = avctx->flags;
2155 s->avctx_mjpeg->flags2 = avctx->flags2;
2156 s->avctx_mjpeg->dct_algo = avctx->dct_algo;
2157 s->avctx_mjpeg->idct_algo = avctx->idct_algo;
2158 ret = avcodec_open2(s->avctx_mjpeg, codec, NULL);
2166 static av_cold int tiff_end(AVCodecContext *avctx)
2168 TiffContext *const s = avctx->priv_data;
2172 ff_lzw_decode_close(&s->lzw);
2173 av_freep(&s->deinvert_buf);
2174 s->deinvert_buf_size = 0;
2175 av_freep(&s->yuv_line);
2176 s->yuv_line_size = 0;
2177 av_frame_free(&s->jpgframe);
2178 av_packet_free(&s->jpkt);
2179 avcodec_free_context(&s->avctx_mjpeg);
2183 #define OFFSET(x) offsetof(TiffContext, x)
2184 static const AVOption tiff_options[] = {
2185 { "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 },
2186 { "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 },
2187 { "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 },
2191 static const AVClass tiff_decoder_class = {
2192 .class_name = "TIFF decoder",
2193 .item_name = av_default_item_name,
2194 .option = tiff_options,
2195 .version = LIBAVUTIL_VERSION_INT,
2198 AVCodec ff_tiff_decoder = {
2200 .long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
2201 .type = AVMEDIA_TYPE_VIDEO,
2202 .id = AV_CODEC_ID_TIFF,
2203 .priv_data_size = sizeof(TiffContext),
2206 .decode = decode_frame,
2207 .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
2208 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
2209 .priv_class = &tiff_decoder_class,