| /* |
| * Copyright (c) 2006 Konstantin Shishkov |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /** |
| * @file |
| * TIFF image decoder |
| * @author Konstantin Shishkov |
| */ |
| |
| #include "config.h" |
| #if CONFIG_ZLIB |
| #include <zlib.h> |
| #endif |
| #if CONFIG_LZMA |
| #define LZMA_API_STATIC |
| #include <lzma.h> |
| #endif |
| |
| #include "libavutil/attributes.h" |
| #include "libavutil/avstring.h" |
| #include "libavutil/intreadwrite.h" |
| #include "libavutil/imgutils.h" |
| #include "libavutil/opt.h" |
| #include "avcodec.h" |
| #include "bytestream.h" |
| #include "faxcompr.h" |
| #include "internal.h" |
| #include "lzw.h" |
| #include "mathops.h" |
| #include "tiff.h" |
| #include "tiff_data.h" |
| #include "thread.h" |
| #include "get_bits.h" |
| |
| typedef struct TiffContext { |
| AVClass *class; |
| AVCodecContext *avctx; |
| GetByteContext gb; |
| |
| int get_subimage; |
| uint16_t get_page; |
| int get_thumbnail; |
| |
| enum TiffType tiff_type; |
| int width, height; |
| unsigned int bpp, bppcount; |
| uint32_t palette[256]; |
| int palette_is_set; |
| int le; |
| enum TiffCompr compr; |
| enum TiffPhotometric photometric; |
| int planar; |
| int subsampling[2]; |
| int fax_opts; |
| int predictor; |
| int fill_order; |
| uint32_t res[4]; |
| int is_thumbnail; |
| |
| int is_bayer; |
| uint8_t pattern[4]; |
| unsigned white_level; |
| |
| uint32_t sub_ifd; |
| uint16_t cur_page; |
| |
| int strips, rps, sstype; |
| int sot; |
| int stripsizesoff, stripsize, stripoff, strippos; |
| LZWState *lzw; |
| |
| uint8_t *deinvert_buf; |
| int deinvert_buf_size; |
| uint8_t *yuv_line; |
| unsigned int yuv_line_size; |
| uint8_t *fax_buffer; |
| unsigned int fax_buffer_size; |
| |
| int geotag_count; |
| TiffGeoTag *geotags; |
| } TiffContext; |
| |
| static void tiff_set_type(TiffContext *s, enum TiffType tiff_type) { |
| if (s->tiff_type < tiff_type) // Prioritize higher-valued entries |
| s->tiff_type = tiff_type; |
| } |
| |
| static void free_geotags(TiffContext *const s) |
| { |
| int i; |
| for (i = 0; i < s->geotag_count; i++) { |
| if (s->geotags[i].val) |
| av_freep(&s->geotags[i].val); |
| } |
| av_freep(&s->geotags); |
| s->geotag_count = 0; |
| } |
| |
| #define RET_GEOKEY(TYPE, array, element)\ |
| if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\ |
| key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_name_type_map))\ |
| return ff_tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].element; |
| |
| static const char *get_geokey_name(int key) |
| { |
| RET_GEOKEY(VERT, vert, name); |
| RET_GEOKEY(PROJ, proj, name); |
| RET_GEOKEY(GEOG, geog, name); |
| RET_GEOKEY(CONF, conf, name); |
| |
| return NULL; |
| } |
| |
| static int get_geokey_type(int key) |
| { |
| RET_GEOKEY(VERT, vert, type); |
| RET_GEOKEY(PROJ, proj, type); |
| RET_GEOKEY(GEOG, geog, type); |
| RET_GEOKEY(CONF, conf, type); |
| |
| return AVERROR_INVALIDDATA; |
| } |
| |
| static int cmp_id_key(const void *id, const void *k) |
| { |
| return *(const int*)id - ((const TiffGeoTagKeyName*)k)->key; |
| } |
| |
| static const char *search_keyval(const TiffGeoTagKeyName *keys, int n, int id) |
| { |
| TiffGeoTagKeyName *r = bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key); |
| if(r) |
| return r->name; |
| |
| return NULL; |
| } |
| |
| static char *get_geokey_val(int key, int val) |
| { |
| char *ap; |
| |
| if (val == TIFF_GEO_KEY_UNDEFINED) |
| return av_strdup("undefined"); |
| if (val == TIFF_GEO_KEY_USER_DEFINED) |
| return av_strdup("User-Defined"); |
| |
| #define RET_GEOKEY_VAL(TYPE, array)\ |
| if (val >= TIFF_##TYPE##_OFFSET &&\ |
| val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_codes))\ |
| return av_strdup(ff_tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET]); |
| |
| switch (key) { |
| case TIFF_GT_MODEL_TYPE_GEOKEY: |
| RET_GEOKEY_VAL(GT_MODEL_TYPE, gt_model_type); |
| break; |
| case TIFF_GT_RASTER_TYPE_GEOKEY: |
| RET_GEOKEY_VAL(GT_RASTER_TYPE, gt_raster_type); |
| break; |
| case TIFF_GEOG_LINEAR_UNITS_GEOKEY: |
| case TIFF_PROJ_LINEAR_UNITS_GEOKEY: |
| case TIFF_VERTICAL_UNITS_GEOKEY: |
| RET_GEOKEY_VAL(LINEAR_UNIT, linear_unit); |
| break; |
| case TIFF_GEOG_ANGULAR_UNITS_GEOKEY: |
| case TIFF_GEOG_AZIMUTH_UNITS_GEOKEY: |
| RET_GEOKEY_VAL(ANGULAR_UNIT, angular_unit); |
| break; |
| case TIFF_GEOGRAPHIC_TYPE_GEOKEY: |
| RET_GEOKEY_VAL(GCS_TYPE, gcs_type); |
| RET_GEOKEY_VAL(GCSE_TYPE, gcse_type); |
| break; |
| case TIFF_GEOG_GEODETIC_DATUM_GEOKEY: |
| RET_GEOKEY_VAL(GEODETIC_DATUM, geodetic_datum); |
| RET_GEOKEY_VAL(GEODETIC_DATUM_E, geodetic_datum_e); |
| break; |
| case TIFF_GEOG_ELLIPSOID_GEOKEY: |
| RET_GEOKEY_VAL(ELLIPSOID, ellipsoid); |
| break; |
| case TIFF_GEOG_PRIME_MERIDIAN_GEOKEY: |
| RET_GEOKEY_VAL(PRIME_MERIDIAN, prime_meridian); |
| break; |
| case TIFF_PROJECTED_CS_TYPE_GEOKEY: |
| ap = av_strdup(search_keyval(ff_tiff_proj_cs_type_codes, FF_ARRAY_ELEMS(ff_tiff_proj_cs_type_codes), val)); |
| if(ap) return ap; |
| break; |
| case TIFF_PROJECTION_GEOKEY: |
| ap = av_strdup(search_keyval(ff_tiff_projection_codes, FF_ARRAY_ELEMS(ff_tiff_projection_codes), val)); |
| if(ap) return ap; |
| break; |
| case TIFF_PROJ_COORD_TRANS_GEOKEY: |
| RET_GEOKEY_VAL(COORD_TRANS, coord_trans); |
| break; |
| case TIFF_VERTICAL_CS_TYPE_GEOKEY: |
| RET_GEOKEY_VAL(VERT_CS, vert_cs); |
| RET_GEOKEY_VAL(ORTHO_VERT_CS, ortho_vert_cs); |
| break; |
| |
| } |
| |
| ap = av_malloc(14); |
| if (ap) |
| snprintf(ap, 14, "Unknown-%d", val); |
| return ap; |
| } |
| |
| static char *doubles2str(double *dp, int count, const char *sep) |
| { |
| int i; |
| char *ap, *ap0; |
| uint64_t component_len; |
| if (!sep) sep = ", "; |
| component_len = 24LL + strlen(sep); |
| if (count >= (INT_MAX - 1)/component_len) |
| return NULL; |
| ap = av_malloc(component_len * count + 1); |
| if (!ap) |
| return NULL; |
| ap0 = ap; |
| ap[0] = '\0'; |
| for (i = 0; i < count; i++) { |
| unsigned l = snprintf(ap, component_len, "%.15g%s", dp[i], sep); |
| if(l >= component_len) { |
| av_free(ap0); |
| return NULL; |
| } |
| ap += l; |
| } |
| ap0[strlen(ap0) - strlen(sep)] = '\0'; |
| return ap0; |
| } |
| |
| static int add_metadata(int count, int type, |
| const char *name, const char *sep, TiffContext *s, AVFrame *frame) |
| { |
| switch(type) { |
| case TIFF_DOUBLE: return ff_tadd_doubles_metadata(count, name, sep, &s->gb, s->le, &frame->metadata); |
| case TIFF_SHORT : return ff_tadd_shorts_metadata(count, name, sep, &s->gb, s->le, 0, &frame->metadata); |
| case TIFF_STRING: return ff_tadd_string_metadata(count, name, &s->gb, s->le, &frame->metadata); |
| default : return AVERROR_INVALIDDATA; |
| }; |
| } |
| |
| static void av_always_inline horizontal_fill(TiffContext *s, |
| unsigned int bpp, uint8_t* dst, |
| int usePtr, const uint8_t *src, |
| uint8_t c, int width, int offset) |
| { |
| switch (bpp) { |
| case 1: |
| while (--width >= 0) { |
| dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1; |
| dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1; |
| dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1; |
| dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1; |
| dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1; |
| dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1; |
| dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1; |
| dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7; |
| } |
| break; |
| case 2: |
| while (--width >= 0) { |
| dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3; |
| dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3; |
| dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3; |
| dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6; |
| } |
| break; |
| case 4: |
| while (--width >= 0) { |
| dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF; |
| dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4; |
| } |
| break; |
| case 12: { |
| uint16_t *dst16 = (uint16_t *)dst; |
| GetBitContext gb; |
| init_get_bits8(&gb, src, width); |
| for (int i = 0; i < s->width; i++) { |
| dst16[i] = get_bits(&gb, 12) << 4; |
| } |
| } |
| break; |
| default: |
| if (usePtr) { |
| memcpy(dst + offset, src, width); |
| } else { |
| memset(dst + offset, c, width); |
| } |
| } |
| } |
| |
| static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size) |
| { |
| int i; |
| |
| av_fast_padded_malloc(&s->deinvert_buf, &s->deinvert_buf_size, size); |
| if (!s->deinvert_buf) |
| return AVERROR(ENOMEM); |
| for (i = 0; i < size; i++) |
| s->deinvert_buf[i] = ff_reverse[src[i]]; |
| |
| return 0; |
| } |
| |
| static void unpack_gray(TiffContext *s, AVFrame *p, |
| const uint8_t *src, int lnum, int width, int bpp) |
| { |
| GetBitContext gb; |
| uint16_t *dst = (uint16_t *)(p->data[0] + lnum * p->linesize[0]); |
| |
| init_get_bits8(&gb, src, width); |
| |
| for (int i = 0; i < s->width; i++) { |
| dst[i] = get_bits(&gb, bpp); |
| } |
| } |
| |
| static void unpack_yuv(TiffContext *s, AVFrame *p, |
| const uint8_t *src, int lnum) |
| { |
| int i, j, k; |
| int w = (s->width - 1) / s->subsampling[0] + 1; |
| uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]]; |
| uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]]; |
| if (s->width % s->subsampling[0] || s->height % s->subsampling[1]) { |
| for (i = 0; i < w; i++) { |
| for (j = 0; j < s->subsampling[1]; j++) |
| for (k = 0; k < s->subsampling[0]; k++) |
| p->data[0][FFMIN(lnum + j, s->height-1) * p->linesize[0] + |
| FFMIN(i * s->subsampling[0] + k, s->width-1)] = *src++; |
| *pu++ = *src++; |
| *pv++ = *src++; |
| } |
| }else{ |
| for (i = 0; i < w; i++) { |
| for (j = 0; j < s->subsampling[1]; j++) |
| for (k = 0; k < s->subsampling[0]; k++) |
| p->data[0][(lnum + j) * p->linesize[0] + |
| i * s->subsampling[0] + k] = *src++; |
| *pu++ = *src++; |
| *pv++ = *src++; |
| } |
| } |
| } |
| |
| #if CONFIG_ZLIB |
| static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src, |
| int size) |
| { |
| z_stream zstream = { 0 }; |
| int zret; |
| |
| zstream.next_in = (uint8_t *)src; |
| zstream.avail_in = size; |
| zstream.next_out = dst; |
| zstream.avail_out = *len; |
| zret = inflateInit(&zstream); |
| if (zret != Z_OK) { |
| av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret); |
| return zret; |
| } |
| zret = inflate(&zstream, Z_SYNC_FLUSH); |
| inflateEnd(&zstream); |
| *len = zstream.total_out; |
| return zret == Z_STREAM_END ? Z_OK : zret; |
| } |
| |
| static int tiff_unpack_zlib(TiffContext *s, AVFrame *p, uint8_t *dst, int stride, |
| const uint8_t *src, int size, int width, int lines, |
| int strip_start, int is_yuv) |
| { |
| uint8_t *zbuf; |
| unsigned long outlen; |
| int ret, line; |
| outlen = width * lines; |
| zbuf = av_malloc(outlen); |
| if (!zbuf) |
| return AVERROR(ENOMEM); |
| if (s->fill_order) { |
| if ((ret = deinvert_buffer(s, src, size)) < 0) { |
| av_free(zbuf); |
| return ret; |
| } |
| src = s->deinvert_buf; |
| } |
| ret = tiff_uncompress(zbuf, &outlen, src, size); |
| if (ret != Z_OK) { |
| av_log(s->avctx, AV_LOG_ERROR, |
| "Uncompressing failed (%lu of %lu) with error %d\n", outlen, |
| (unsigned long)width * lines, ret); |
| av_free(zbuf); |
| return AVERROR_UNKNOWN; |
| } |
| src = zbuf; |
| for (line = 0; line < lines; line++) { |
| if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) { |
| horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0); |
| } else { |
| memcpy(dst, src, width); |
| } |
| if (is_yuv) { |
| unpack_yuv(s, p, dst, strip_start + line); |
| line += s->subsampling[1] - 1; |
| } |
| dst += stride; |
| src += width; |
| } |
| av_free(zbuf); |
| return 0; |
| } |
| #endif |
| |
| #if CONFIG_LZMA |
| static int tiff_uncompress_lzma(uint8_t *dst, uint64_t *len, const uint8_t *src, |
| int size) |
| { |
| lzma_stream stream = LZMA_STREAM_INIT; |
| lzma_ret ret; |
| |
| stream.next_in = (uint8_t *)src; |
| stream.avail_in = size; |
| stream.next_out = dst; |
| stream.avail_out = *len; |
| ret = lzma_stream_decoder(&stream, UINT64_MAX, 0); |
| if (ret != LZMA_OK) { |
| av_log(NULL, AV_LOG_ERROR, "LZMA init error: %d\n", ret); |
| return ret; |
| } |
| ret = lzma_code(&stream, LZMA_RUN); |
| lzma_end(&stream); |
| *len = stream.total_out; |
| return ret == LZMA_STREAM_END ? LZMA_OK : ret; |
| } |
| |
| static int tiff_unpack_lzma(TiffContext *s, AVFrame *p, uint8_t *dst, int stride, |
| const uint8_t *src, int size, int width, int lines, |
| int strip_start, int is_yuv) |
| { |
| uint64_t outlen = width * (uint64_t)lines; |
| int ret, line; |
| uint8_t *buf = av_malloc(outlen); |
| if (!buf) |
| return AVERROR(ENOMEM); |
| if (s->fill_order) { |
| if ((ret = deinvert_buffer(s, src, size)) < 0) { |
| av_free(buf); |
| return ret; |
| } |
| src = s->deinvert_buf; |
| } |
| ret = tiff_uncompress_lzma(buf, &outlen, src, size); |
| if (ret != LZMA_OK) { |
| av_log(s->avctx, AV_LOG_ERROR, |
| "Uncompressing failed (%"PRIu64" of %"PRIu64") with error %d\n", outlen, |
| (uint64_t)width * lines, ret); |
| av_free(buf); |
| return AVERROR_UNKNOWN; |
| } |
| src = buf; |
| for (line = 0; line < lines; line++) { |
| if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) { |
| horizontal_fill(s, s->bpp, dst, 1, src, 0, width, 0); |
| } else { |
| memcpy(dst, src, width); |
| } |
| if (is_yuv) { |
| unpack_yuv(s, p, dst, strip_start + line); |
| line += s->subsampling[1] - 1; |
| } |
| dst += stride; |
| src += width; |
| } |
| av_free(buf); |
| return 0; |
| } |
| #endif |
| |
| static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride, |
| const uint8_t *src, int size, int width, int lines) |
| { |
| int i, ret = 0; |
| int line; |
| uint8_t *src2; |
| |
| av_fast_padded_malloc(&s->fax_buffer, &s->fax_buffer_size, size); |
| src2 = s->fax_buffer; |
| |
| if (!src2) { |
| av_log(s->avctx, AV_LOG_ERROR, |
| "Error allocating temporary buffer\n"); |
| return AVERROR(ENOMEM); |
| } |
| |
| if (!s->fill_order) { |
| memcpy(src2, src, size); |
| } else { |
| for (i = 0; i < size; i++) |
| src2[i] = ff_reverse[src[i]]; |
| } |
| memset(src2 + size, 0, AV_INPUT_BUFFER_PADDING_SIZE); |
| ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride, |
| s->compr, s->fax_opts); |
| if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) |
| for (line = 0; line < lines; line++) { |
| horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0); |
| dst += stride; |
| } |
| return ret; |
| } |
| |
| static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride, |
| const uint8_t *src, int size, int strip_start, int lines) |
| { |
| PutByteContext pb; |
| int c, line, pixels, code, ret; |
| const uint8_t *ssrc = src; |
| int width = ((s->width * s->bpp) + 7) >> 3; |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(p->format); |
| int is_yuv = !(desc->flags & AV_PIX_FMT_FLAG_RGB) && |
| (desc->flags & AV_PIX_FMT_FLAG_PLANAR) && |
| desc->nb_components >= 3; |
| |
| if (s->planar) |
| width /= s->bppcount; |
| |
| if (size <= 0) |
| return AVERROR_INVALIDDATA; |
| |
| if (is_yuv) { |
| int bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp * |
| s->subsampling[0] * s->subsampling[1] + 7) >> 3; |
| av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row); |
| if (s->yuv_line == NULL) { |
| av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n"); |
| return AVERROR(ENOMEM); |
| } |
| dst = s->yuv_line; |
| stride = 0; |
| |
| width = (s->width - 1) / s->subsampling[0] + 1; |
| width = width * s->subsampling[0] * s->subsampling[1] + 2*width; |
| av_assert0(width <= bytes_per_row); |
| av_assert0(s->bpp == 24); |
| } |
| if (s->is_bayer) { |
| width = (s->bpp * s->width + 7) >> 3; |
| } |
| if (p->format == AV_PIX_FMT_GRAY12) { |
| av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, width); |
| if (s->yuv_line == NULL) { |
| av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n"); |
| return AVERROR(ENOMEM); |
| } |
| dst = s->yuv_line; |
| stride = 0; |
| } |
| |
| if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) { |
| #if CONFIG_ZLIB |
| return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines, |
| strip_start, is_yuv); |
| #else |
| av_log(s->avctx, AV_LOG_ERROR, |
| "zlib support not enabled, " |
| "deflate compression not supported\n"); |
| return AVERROR(ENOSYS); |
| #endif |
| } |
| if (s->compr == TIFF_LZMA) { |
| #if CONFIG_LZMA |
| return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines, |
| strip_start, is_yuv); |
| #else |
| av_log(s->avctx, AV_LOG_ERROR, |
| "LZMA support not enabled\n"); |
| return AVERROR(ENOSYS); |
| #endif |
| } |
| if (s->compr == TIFF_LZW) { |
| if (s->fill_order) { |
| if ((ret = deinvert_buffer(s, src, size)) < 0) |
| return ret; |
| ssrc = src = s->deinvert_buf; |
| } |
| if (size > 1 && !src[0] && (src[1]&1)) { |
| av_log(s->avctx, AV_LOG_ERROR, "Old style LZW is unsupported\n"); |
| } |
| if ((ret = ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF)) < 0) { |
| av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n"); |
| return ret; |
| } |
| for (line = 0; line < lines; line++) { |
| pixels = ff_lzw_decode(s->lzw, dst, width); |
| if (pixels < width) { |
| av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n", |
| pixels, width); |
| return AVERROR_INVALIDDATA; |
| } |
| if (s->bpp < 8 && s->avctx->pix_fmt == AV_PIX_FMT_PAL8) |
| horizontal_fill(s, s->bpp, dst, 1, dst, 0, width, 0); |
| if (is_yuv) { |
| unpack_yuv(s, p, dst, strip_start + line); |
| line += s->subsampling[1] - 1; |
| } else if (p->format == AV_PIX_FMT_GRAY12) { |
| unpack_gray(s, p, dst, strip_start + line, width, s->bpp); |
| } |
| dst += stride; |
| } |
| return 0; |
| } |
| if (s->compr == TIFF_CCITT_RLE || |
| s->compr == TIFF_G3 || |
| s->compr == TIFF_G4) { |
| if (is_yuv || p->format == AV_PIX_FMT_GRAY12) |
| return AVERROR_INVALIDDATA; |
| |
| return tiff_unpack_fax(s, dst, stride, src, size, width, lines); |
| } |
| |
| bytestream2_init(&s->gb, src, size); |
| bytestream2_init_writer(&pb, dst, is_yuv ? s->yuv_line_size : (stride * lines)); |
| |
| for (line = 0; line < lines; line++) { |
| if (src - ssrc > size) { |
| av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| if (bytestream2_get_bytes_left(&s->gb) == 0 || bytestream2_get_eof(&pb)) |
| break; |
| bytestream2_seek_p(&pb, stride * line, SEEK_SET); |
| switch (s->compr) { |
| case TIFF_RAW: |
| if (ssrc + size - src < width) |
| return AVERROR_INVALIDDATA; |
| |
| if (!s->fill_order) { |
| horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 || s->is_bayer), |
| dst, 1, src, 0, width, 0); |
| } else { |
| int i; |
| for (i = 0; i < width; i++) |
| dst[i] = ff_reverse[src[i]]; |
| } |
| src += width; |
| break; |
| case TIFF_PACKBITS: |
| for (pixels = 0; pixels < width;) { |
| if (ssrc + size - src < 2) { |
| av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| code = s->fill_order ? (int8_t) ff_reverse[*src++]: (int8_t) *src++; |
| if (code >= 0) { |
| code++; |
| if (pixels + code > width || |
| ssrc + size - src < code) { |
| av_log(s->avctx, AV_LOG_ERROR, |
| "Copy went out of bounds\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8), |
| dst, 1, src, 0, code, pixels); |
| src += code; |
| pixels += code; |
| } else if (code != -128) { // -127..-1 |
| code = (-code) + 1; |
| if (pixels + code > width) { |
| av_log(s->avctx, AV_LOG_ERROR, |
| "Run went out of bounds\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| c = *src++; |
| horizontal_fill(s, s->bpp * (s->avctx->pix_fmt == AV_PIX_FMT_PAL8), |
| dst, 0, NULL, c, code, pixels); |
| pixels += code; |
| } |
| } |
| if (s->fill_order) { |
| int i; |
| for (i = 0; i < width; i++) |
| dst[i] = ff_reverse[dst[i]]; |
| } |
| break; |
| } |
| if (is_yuv) { |
| unpack_yuv(s, p, dst, strip_start + line); |
| line += s->subsampling[1] - 1; |
| } else if (p->format == AV_PIX_FMT_GRAY12) { |
| unpack_gray(s, p, dst, strip_start + line, width, s->bpp); |
| } |
| dst += stride; |
| } |
| return 0; |
| } |
| |
| static int init_image(TiffContext *s, ThreadFrame *frame) |
| { |
| int ret; |
| int create_gray_palette = 0; |
| |
| // make sure there is no aliasing in the following switch |
| if (s->bpp >= 100 || s->bppcount >= 10) { |
| av_log(s->avctx, AV_LOG_ERROR, |
| "Unsupported image parameters: bpp=%d, bppcount=%d\n", |
| s->bpp, s->bppcount); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| switch (s->planar * 1000 + s->bpp * 10 + s->bppcount + s->is_bayer * 10000) { |
| case 11: |
| if (!s->palette_is_set) { |
| s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK; |
| break; |
| } |
| case 21: |
| case 41: |
| s->avctx->pix_fmt = AV_PIX_FMT_PAL8; |
| if (!s->palette_is_set) { |
| create_gray_palette = 1; |
| } |
| break; |
| case 81: |
| s->avctx->pix_fmt = s->palette_is_set ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_GRAY8; |
| break; |
| case 121: |
| s->avctx->pix_fmt = AV_PIX_FMT_GRAY12; |
| break; |
| case 10081: |
| switch (AV_RL32(s->pattern)) { |
| case 0x02010100: |
| s->avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB8; |
| break; |
| case 0x00010102: |
| s->avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR8; |
| break; |
| case 0x01000201: |
| s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG8; |
| break; |
| case 0x01020001: |
| s->avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG8; |
| break; |
| default: |
| av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n", |
| AV_RL32(s->pattern)); |
| return AVERROR_PATCHWELCOME; |
| } |
| break; |
| case 10121: |
| switch (AV_RL32(s->pattern)) { |
| case 0x02010100: |
| s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_RGGB16LE : AV_PIX_FMT_BAYER_RGGB16BE; |
| break; |
| case 0x00010102: |
| s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_BGGR16LE : AV_PIX_FMT_BAYER_BGGR16BE; |
| break; |
| case 0x01000201: |
| s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GBRG16LE : AV_PIX_FMT_BAYER_GBRG16BE; |
| break; |
| case 0x01020001: |
| s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GRBG16LE : AV_PIX_FMT_BAYER_GRBG16BE; |
| break; |
| default: |
| av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n", |
| AV_RL32(s->pattern)); |
| return AVERROR_PATCHWELCOME; |
| } |
| break; |
| case 10161: |
| switch (AV_RL32(s->pattern)) { |
| case 0x02010100: |
| s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_RGGB16LE : AV_PIX_FMT_BAYER_RGGB16BE; |
| break; |
| case 0x00010102: |
| s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_BGGR16LE : AV_PIX_FMT_BAYER_BGGR16BE; |
| break; |
| case 0x01000201: |
| s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GBRG16LE : AV_PIX_FMT_BAYER_GBRG16BE; |
| break; |
| case 0x01020001: |
| s->avctx->pix_fmt = s->le ? AV_PIX_FMT_BAYER_GRBG16LE : AV_PIX_FMT_BAYER_GRBG16BE; |
| break; |
| default: |
| av_log(s->avctx, AV_LOG_ERROR, "Unsupported Bayer pattern: 0x%X\n", |
| AV_RL32(s->pattern)); |
| return AVERROR_PATCHWELCOME; |
| } |
| break; |
| case 243: |
| if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) { |
| if (s->subsampling[0] == 1 && s->subsampling[1] == 1) { |
| s->avctx->pix_fmt = AV_PIX_FMT_YUV444P; |
| } else if (s->subsampling[0] == 2 && s->subsampling[1] == 1) { |
| s->avctx->pix_fmt = AV_PIX_FMT_YUV422P; |
| } else if (s->subsampling[0] == 4 && s->subsampling[1] == 1) { |
| s->avctx->pix_fmt = AV_PIX_FMT_YUV411P; |
| } else if (s->subsampling[0] == 1 && s->subsampling[1] == 2) { |
| s->avctx->pix_fmt = AV_PIX_FMT_YUV440P; |
| } else if (s->subsampling[0] == 2 && s->subsampling[1] == 2) { |
| s->avctx->pix_fmt = AV_PIX_FMT_YUV420P; |
| } else if (s->subsampling[0] == 4 && s->subsampling[1] == 4) { |
| s->avctx->pix_fmt = AV_PIX_FMT_YUV410P; |
| } else { |
| av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr subsampling\n"); |
| return AVERROR_PATCHWELCOME; |
| } |
| } else |
| s->avctx->pix_fmt = AV_PIX_FMT_RGB24; |
| break; |
| case 161: |
| s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE; |
| break; |
| case 162: |
| s->avctx->pix_fmt = AV_PIX_FMT_YA8; |
| break; |
| case 322: |
| s->avctx->pix_fmt = s->le ? AV_PIX_FMT_YA16LE : AV_PIX_FMT_YA16BE; |
| break; |
| case 324: |
| s->avctx->pix_fmt = s->photometric == TIFF_PHOTOMETRIC_SEPARATED ? AV_PIX_FMT_RGB0 : AV_PIX_FMT_RGBA; |
| break; |
| case 405: |
| if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED) |
| s->avctx->pix_fmt = AV_PIX_FMT_RGBA; |
| else { |
| av_log(s->avctx, AV_LOG_ERROR, |
| "bpp=40 without PHOTOMETRIC_SEPARATED is unsupported\n"); |
| return AVERROR_PATCHWELCOME; |
| } |
| break; |
| case 483: |
| s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE; |
| break; |
| case 644: |
| s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE; |
| break; |
| case 1243: |
| s->avctx->pix_fmt = AV_PIX_FMT_GBRP; |
| break; |
| case 1324: |
| s->avctx->pix_fmt = AV_PIX_FMT_GBRAP; |
| break; |
| case 1483: |
| s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE; |
| break; |
| case 1644: |
| s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE; |
| break; |
| default: |
| av_log(s->avctx, AV_LOG_ERROR, |
| "This format is not supported (bpp=%d, bppcount=%d)\n", |
| s->bpp, s->bppcount); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) { |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt); |
| if((desc->flags & AV_PIX_FMT_FLAG_RGB) || |
| !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) || |
| desc->nb_components < 3) { |
| av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr variant\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| } |
| |
| if (s->width != s->avctx->width || s->height != s->avctx->height) { |
| ret = ff_set_dimensions(s->avctx, s->width, s->height); |
| if (ret < 0) |
| return ret; |
| } |
| if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0) |
| return ret; |
| if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) { |
| if (!create_gray_palette) |
| memcpy(frame->f->data[1], s->palette, sizeof(s->palette)); |
| else { |
| /* make default grayscale pal */ |
| int i; |
| uint32_t *pal = (uint32_t *)frame->f->data[1]; |
| for (i = 0; i < 1<<s->bpp; i++) |
| pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101; |
| } |
| } |
| return 0; |
| } |
| |
| static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den) |
| { |
| int offset = tag == TIFF_YRES ? 2 : 0; |
| s->res[offset++] = num; |
| s->res[offset] = den; |
| if (s->res[0] && s->res[1] && s->res[2] && s->res[3]) { |
| uint64_t num = s->res[2] * (uint64_t)s->res[1]; |
| uint64_t den = s->res[0] * (uint64_t)s->res[3]; |
| if (num > INT64_MAX || den > INT64_MAX) { |
| num = num >> 1; |
| den = den >> 1; |
| } |
| av_reduce(&s->avctx->sample_aspect_ratio.num, &s->avctx->sample_aspect_ratio.den, |
| num, den, INT32_MAX); |
| if (!s->avctx->sample_aspect_ratio.den) |
| s->avctx->sample_aspect_ratio = (AVRational) {0, 1}; |
| } |
| } |
| |
| static int tiff_decode_tag(TiffContext *s, AVFrame *frame) |
| { |
| unsigned tag, type, count, off, value = 0, value2 = 0; |
| int i, start; |
| int pos; |
| int ret; |
| double *dp; |
| |
| ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start); |
| if (ret < 0) { |
| goto end; |
| } |
| |
| off = bytestream2_tell(&s->gb); |
| if (count == 1) { |
| switch (type) { |
| case TIFF_BYTE: |
| case TIFF_SHORT: |
| case TIFF_LONG: |
| value = ff_tget(&s->gb, type, s->le); |
| break; |
| case TIFF_RATIONAL: |
| value = ff_tget(&s->gb, TIFF_LONG, s->le); |
| value2 = ff_tget(&s->gb, TIFF_LONG, s->le); |
| break; |
| case TIFF_STRING: |
| if (count <= 4) { |
| break; |
| } |
| default: |
| value = UINT_MAX; |
| } |
| } |
| |
| switch (tag) { |
| case TIFF_SUBFILE: |
| s->is_thumbnail = (value != 0); |
| case TIFF_WIDTH: |
| s->width = value; |
| break; |
| case TIFF_HEIGHT: |
| s->height = value; |
| break; |
| case TIFF_BPP: |
| if (count > 5U) { |
| av_log(s->avctx, AV_LOG_ERROR, |
| "This format is not supported (bpp=%d, %d components)\n", |
| value, count); |
| return AVERROR_INVALIDDATA; |
| } |
| s->bppcount = count; |
| if (count == 1) |
| s->bpp = value; |
| else { |
| switch (type) { |
| case TIFF_BYTE: |
| case TIFF_SHORT: |
| case TIFF_LONG: |
| s->bpp = 0; |
| if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count) |
| return AVERROR_INVALIDDATA; |
| for (i = 0; i < count; i++) |
| s->bpp += ff_tget(&s->gb, type, s->le); |
| break; |
| default: |
| s->bpp = -1; |
| } |
| } |
| break; |
| case TIFF_SAMPLES_PER_PIXEL: |
| if (count != 1) { |
| av_log(s->avctx, AV_LOG_ERROR, |
| "Samples per pixel requires a single value, many provided\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| if (value > 5U) { |
| av_log(s->avctx, AV_LOG_ERROR, |
| "Samples per pixel %d is too large\n", value); |
| return AVERROR_INVALIDDATA; |
| } |
| if (s->bppcount == 1) |
| s->bpp *= value; |
| s->bppcount = value; |
| break; |
| case TIFF_COMPR: |
| s->compr = value; |
| av_log(s->avctx, AV_LOG_DEBUG, "compression: %d\n", s->compr); |
| s->predictor = 0; |
| switch (s->compr) { |
| case TIFF_RAW: |
| case TIFF_PACKBITS: |
| case TIFF_LZW: |
| case TIFF_CCITT_RLE: |
| break; |
| case TIFF_G3: |
| case TIFF_G4: |
| s->fax_opts = 0; |
| break; |
| case TIFF_DEFLATE: |
| case TIFF_ADOBE_DEFLATE: |
| #if CONFIG_ZLIB |
| break; |
| #else |
| av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n"); |
| return AVERROR(ENOSYS); |
| #endif |
| case TIFF_JPEG: |
| case TIFF_NEWJPEG: |
| avpriv_report_missing_feature(s->avctx, "JPEG compression"); |
| return AVERROR_PATCHWELCOME; |
| case TIFF_LZMA: |
| #if CONFIG_LZMA |
| break; |
| #else |
| av_log(s->avctx, AV_LOG_ERROR, "LZMA not compiled in\n"); |
| return AVERROR(ENOSYS); |
| #endif |
| default: |
| av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n", |
| s->compr); |
| return AVERROR_INVALIDDATA; |
| } |
| break; |
| case TIFF_ROWSPERSTRIP: |
| if (!value || (type == TIFF_LONG && value == UINT_MAX)) |
| value = s->height; |
| s->rps = FFMIN(value, s->height); |
| break; |
| case TIFF_STRIP_OFFS: |
| if (count == 1) { |
| if (value > INT_MAX) { |
| av_log(s->avctx, AV_LOG_ERROR, |
| "strippos %u too large\n", value); |
| return AVERROR_INVALIDDATA; |
| } |
| s->strippos = 0; |
| s->stripoff = value; |
| } else |
| s->strippos = off; |
| s->strips = count; |
| if (s->strips == 1) |
| s->rps = s->height; |
| s->sot = type; |
| break; |
| case TIFF_STRIP_SIZE: |
| if (count == 1) { |
| if (value > INT_MAX) { |
| av_log(s->avctx, AV_LOG_ERROR, |
| "stripsize %u too large\n", value); |
| return AVERROR_INVALIDDATA; |
| } |
| s->stripsizesoff = 0; |
| s->stripsize = value; |
| s->strips = 1; |
| } else { |
| s->stripsizesoff = off; |
| } |
| s->strips = count; |
| s->sstype = type; |
| break; |
| case TIFF_XRES: |
| case TIFF_YRES: |
| set_sar(s, tag, value, value2); |
| break; |
| case TIFF_TILE_BYTE_COUNTS: |
| case TIFF_TILE_LENGTH: |
| case TIFF_TILE_OFFSETS: |
| case TIFF_TILE_WIDTH: |
| av_log(s->avctx, AV_LOG_ERROR, "Tiled images are not supported\n"); |
| return AVERROR_PATCHWELCOME; |
| break; |
| case TIFF_PREDICTOR: |
| s->predictor = value; |
| break; |
| case TIFF_SUB_IFDS: |
| if (count == 1) |
| s->sub_ifd = value; |
| else if (count > 1) |
| s->sub_ifd = ff_tget(&s->gb, TIFF_LONG, s->le); /** Only get the first SubIFD */ |
| break; |
| case DNG_WHITE_LEVEL: |
| s->white_level = value; |
| break; |
| case TIFF_CFA_PATTERN_DIM: |
| if (count != 2 || (ff_tget(&s->gb, type, s->le) != 2 && |
| ff_tget(&s->gb, type, s->le) != 2)) { |
| av_log(s->avctx, AV_LOG_ERROR, "CFA Pattern dimensions are not 2x2\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| break; |
| case TIFF_CFA_PATTERN: |
| s->is_bayer = 1; |
| s->pattern[0] = ff_tget(&s->gb, type, s->le); |
| s->pattern[1] = ff_tget(&s->gb, type, s->le); |
| s->pattern[2] = ff_tget(&s->gb, type, s->le); |
| s->pattern[3] = ff_tget(&s->gb, type, s->le); |
| break; |
| case TIFF_PHOTOMETRIC: |
| switch (value) { |
| case TIFF_PHOTOMETRIC_WHITE_IS_ZERO: |
| case TIFF_PHOTOMETRIC_BLACK_IS_ZERO: |
| case TIFF_PHOTOMETRIC_RGB: |
| case TIFF_PHOTOMETRIC_PALETTE: |
| case TIFF_PHOTOMETRIC_SEPARATED: |
| case TIFF_PHOTOMETRIC_YCBCR: |
| case TIFF_PHOTOMETRIC_CFA: |
| s->photometric = value; |
| break; |
| case TIFF_PHOTOMETRIC_ALPHA_MASK: |
| case TIFF_PHOTOMETRIC_CIE_LAB: |
| case TIFF_PHOTOMETRIC_ICC_LAB: |
| case TIFF_PHOTOMETRIC_ITU_LAB: |
| case TIFF_PHOTOMETRIC_LOG_L: |
| case TIFF_PHOTOMETRIC_LOG_LUV: |
| case TIFF_PHOTOMETRIC_LINEAR_RAW: |
| avpriv_report_missing_feature(s->avctx, |
| "PhotometricInterpretation 0x%04X", |
| value); |
| return AVERROR_PATCHWELCOME; |
| default: |
| av_log(s->avctx, AV_LOG_ERROR, "PhotometricInterpretation %u is " |
| "unknown\n", value); |
| return AVERROR_INVALIDDATA; |
| } |
| break; |
| case TIFF_FILL_ORDER: |
| if (value < 1 || value > 2) { |
| av_log(s->avctx, AV_LOG_ERROR, |
| "Unknown FillOrder value %d, trying default one\n", value); |
| value = 1; |
| } |
| s->fill_order = value - 1; |
| break; |
| case TIFF_PAL: { |
| GetByteContext pal_gb[3]; |
| off = type_sizes[type]; |
| if (count / 3 > 256 || |
| bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3) |
| return AVERROR_INVALIDDATA; |
| |
| pal_gb[0] = pal_gb[1] = pal_gb[2] = s->gb; |
| bytestream2_skip(&pal_gb[1], count / 3 * off); |
| bytestream2_skip(&pal_gb[2], count / 3 * off * 2); |
| |
| off = (type_sizes[type] - 1) << 3; |
| if (off > 31U) { |
| av_log(s->avctx, AV_LOG_ERROR, "palette shift %d is out of range\n", off); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| for (i = 0; i < count / 3; i++) { |
| uint32_t p = 0xFF000000; |
| p |= (ff_tget(&pal_gb[0], type, s->le) >> off) << 16; |
| p |= (ff_tget(&pal_gb[1], type, s->le) >> off) << 8; |
| p |= ff_tget(&pal_gb[2], type, s->le) >> off; |
| s->palette[i] = p; |
| } |
| s->palette_is_set = 1; |
| break; |
| } |
| case TIFF_PLANAR: |
| s->planar = value == 2; |
| break; |
| case TIFF_YCBCR_SUBSAMPLING: |
| if (count != 2) { |
| av_log(s->avctx, AV_LOG_ERROR, "subsample count invalid\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| for (i = 0; i < count; i++) { |
| s->subsampling[i] = ff_tget(&s->gb, type, s->le); |
| if (s->subsampling[i] <= 0) { |
| av_log(s->avctx, AV_LOG_ERROR, "subsampling %d is invalid\n", s->subsampling[i]); |
| s->subsampling[i] = 1; |
| return AVERROR_INVALIDDATA; |
| } |
| } |
| break; |
| case TIFF_T4OPTIONS: |
| if (s->compr == TIFF_G3) |
| s->fax_opts = value; |
| break; |
| case TIFF_T6OPTIONS: |
| if (s->compr == TIFF_G4) |
| s->fax_opts = value; |
| break; |
| #define ADD_METADATA(count, name, sep)\ |
| if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\ |
| av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\ |
| goto end;\ |
| } |
| case TIFF_MODEL_PIXEL_SCALE: |
| ADD_METADATA(count, "ModelPixelScaleTag", NULL); |
| break; |
| case TIFF_MODEL_TRANSFORMATION: |
| ADD_METADATA(count, "ModelTransformationTag", NULL); |
| break; |
| case TIFF_MODEL_TIEPOINT: |
| ADD_METADATA(count, "ModelTiepointTag", NULL); |
| break; |
| case TIFF_GEO_KEY_DIRECTORY: |
| if (s->geotag_count) { |
| avpriv_request_sample(s->avctx, "Multiple geo key directories\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| ADD_METADATA(1, "GeoTIFF_Version", NULL); |
| ADD_METADATA(2, "GeoTIFF_Key_Revision", "."); |
| s->geotag_count = ff_tget_short(&s->gb, s->le); |
| if (s->geotag_count > count / 4 - 1) { |
| s->geotag_count = count / 4 - 1; |
| av_log(s->avctx, AV_LOG_WARNING, "GeoTIFF key directory buffer shorter than specified\n"); |
| } |
| if ( bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4 |
| || s->geotag_count == 0) { |
| s->geotag_count = 0; |
| return -1; |
| } |
| s->geotags = av_mallocz_array(s->geotag_count, sizeof(TiffGeoTag)); |
| if (!s->geotags) { |
| av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n"); |
| s->geotag_count = 0; |
| goto end; |
| } |
| for (i = 0; i < s->geotag_count; i++) { |
| s->geotags[i].key = ff_tget_short(&s->gb, s->le); |
| s->geotags[i].type = ff_tget_short(&s->gb, s->le); |
| s->geotags[i].count = ff_tget_short(&s->gb, s->le); |
| |
| if (!s->geotags[i].type) |
| s->geotags[i].val = get_geokey_val(s->geotags[i].key, ff_tget_short(&s->gb, s->le)); |
| else |
| s->geotags[i].offset = ff_tget_short(&s->gb, s->le); |
| } |
| break; |
| case TIFF_GEO_DOUBLE_PARAMS: |
| if (count >= INT_MAX / sizeof(int64_t)) |
| return AVERROR_INVALIDDATA; |
| if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t)) |
| return AVERROR_INVALIDDATA; |
| dp = av_malloc_array(count, sizeof(double)); |
| if (!dp) { |
| av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n"); |
| goto end; |
| } |
| for (i = 0; i < count; i++) |
| dp[i] = ff_tget_double(&s->gb, s->le); |
| for (i = 0; i < s->geotag_count; i++) { |
| if (s->geotags[i].type == TIFF_GEO_DOUBLE_PARAMS) { |
| if (s->geotags[i].count == 0 |
| || s->geotags[i].offset + s->geotags[i].count > count) { |
| av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key); |
| } else if (s->geotags[i].val) { |
| av_log(s->avctx, AV_LOG_WARNING, "Duplicate GeoTIFF key %d\n", s->geotags[i].key); |
| } else { |
| char *ap = doubles2str(&dp[s->geotags[i].offset], s->geotags[i].count, ", "); |
| if (!ap) { |
| av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n"); |
| av_freep(&dp); |
| return AVERROR(ENOMEM); |
| } |
| s->geotags[i].val = ap; |
| } |
| } |
| } |
| av_freep(&dp); |
| break; |
| case TIFF_GEO_ASCII_PARAMS: |
| pos = bytestream2_tell(&s->gb); |
| for (i = 0; i < s->geotag_count; i++) { |
| if (s->geotags[i].type == TIFF_GEO_ASCII_PARAMS) { |
| if (s->geotags[i].count == 0 |
| || s->geotags[i].offset + s->geotags[i].count > count) { |
| av_log(s->avctx, AV_LOG_WARNING, "Invalid GeoTIFF key %d\n", s->geotags[i].key); |
| } else { |
| char *ap; |
| |
| bytestream2_seek(&s->gb, pos + s->geotags[i].offset, SEEK_SET); |
| if (bytestream2_get_bytes_left(&s->gb) < s->geotags[i].count) |
| return AVERROR_INVALIDDATA; |
| if (s->geotags[i].val) |
| return AVERROR_INVALIDDATA; |
| ap = av_malloc(s->geotags[i].count); |
| if (!ap) { |
| av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n"); |
| return AVERROR(ENOMEM); |
| } |
| bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count); |
| ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte |
| s->geotags[i].val = ap; |
| } |
| } |
| } |
| break; |
| case TIFF_ARTIST: |
| ADD_METADATA(count, "artist", NULL); |
| break; |
| case TIFF_COPYRIGHT: |
| ADD_METADATA(count, "copyright", NULL); |
| break; |
| case TIFF_DATE: |
| ADD_METADATA(count, "date", NULL); |
| break; |
| case TIFF_DOCUMENT_NAME: |
| ADD_METADATA(count, "document_name", NULL); |
| break; |
| case TIFF_HOST_COMPUTER: |
| ADD_METADATA(count, "computer", NULL); |
| break; |
| case TIFF_IMAGE_DESCRIPTION: |
| ADD_METADATA(count, "description", NULL); |
| break; |
| case TIFF_MAKE: |
| ADD_METADATA(count, "make", NULL); |
| break; |
| case TIFF_MODEL: |
| ADD_METADATA(count, "model", NULL); |
| break; |
| case TIFF_PAGE_NAME: |
| ADD_METADATA(count, "page_name", NULL); |
| break; |
| case TIFF_PAGE_NUMBER: |
| ADD_METADATA(count, "page_number", " / "); |
| // need to seek back to re-read the page number |
| bytestream2_seek(&s->gb, -count * sizeof(uint16_t), SEEK_CUR); |
| // read the page number |
| s->cur_page = ff_tget(&s->gb, TIFF_SHORT, s->le); |
| // get back to where we were before the previous seek |
| bytestream2_seek(&s->gb, count * sizeof(uint16_t) - sizeof(uint16_t), SEEK_CUR); |
| break; |
| case TIFF_SOFTWARE_NAME: |
| ADD_METADATA(count, "software", NULL); |
| break; |
| case DNG_VERSION: |
| if (count == 4) { |
| unsigned int ver[4]; |
| ver[0] = ff_tget(&s->gb, type, s->le); |
| ver[1] = ff_tget(&s->gb, type, s->le); |
| ver[2] = ff_tget(&s->gb, type, s->le); |
| ver[3] = ff_tget(&s->gb, type, s->le); |
| |
| av_log(s->avctx, AV_LOG_DEBUG, "DNG file, version %u.%u.%u.%u\n", |
| ver[0], ver[1], ver[2], ver[3]); |
| |
| tiff_set_type(s, TIFF_TYPE_DNG); |
| } |
| break; |
| case CINEMADNG_TIME_CODES: |
| case CINEMADNG_FRAME_RATE: |
| case CINEMADNG_T_STOP: |
| case CINEMADNG_REEL_NAME: |
| case CINEMADNG_CAMERA_LABEL: |
| tiff_set_type(s, TIFF_TYPE_CINEMADNG); |
| break; |
| default: |
| if (s->avctx->err_recognition & AV_EF_EXPLODE) { |
| av_log(s->avctx, AV_LOG_ERROR, |
| "Unknown or unsupported tag %d/0x%0X\n", |
| tag, tag); |
| return AVERROR_INVALIDDATA; |
| } |
| } |
| end: |
| if (s->bpp > 64U) { |
| av_log(s->avctx, AV_LOG_ERROR, |
| "This format is not supported (bpp=%d, %d components)\n", |
| s->bpp, count); |
| s->bpp = 0; |
| return AVERROR_INVALIDDATA; |
| } |
| bytestream2_seek(&s->gb, start, SEEK_SET); |
| return 0; |
| } |
| |
| static int decode_frame(AVCodecContext *avctx, |
| void *data, int *got_frame, AVPacket *avpkt) |
| { |
| TiffContext *const s = avctx->priv_data; |
| AVFrame *const p = data; |
| ThreadFrame frame = { .f = data }; |
| unsigned off; |
| int le, ret, plane, planes; |
| int i, j, entries, stride; |
| unsigned soff, ssize; |
| uint8_t *dst; |
| GetByteContext stripsizes; |
| GetByteContext stripdata; |
| int retry_for_subifd, retry_for_page; |
| |
| bytestream2_init(&s->gb, avpkt->data, avpkt->size); |
| |
| // parse image header |
| if ((ret = ff_tdecode_header(&s->gb, &le, &off))) { |
| av_log(avctx, AV_LOG_ERROR, "Invalid TIFF header\n"); |
| return ret; |
| } else if (off >= UINT_MAX - 14 || avpkt->size < off + 14) { |
| av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| s->le = le; |
| // TIFF_BPP is not a required tag and defaults to 1 |
| again: |
| s->is_thumbnail = 0; |
| s->bppcount = s->bpp = 1; |
| s->photometric = TIFF_PHOTOMETRIC_NONE; |
| s->compr = TIFF_RAW; |
| s->fill_order = 0; |
| s->white_level = 0; |
| s->is_bayer = 0; |
| s->cur_page = 0; |
| s->tiff_type = TIFF_TYPE_TIFF; |
| free_geotags(s); |
| |
| // Reset these offsets so we can tell if they were set this frame |
| s->stripsizesoff = s->strippos = 0; |
| /* parse image file directory */ |
| bytestream2_seek(&s->gb, off, SEEK_SET); |
| entries = ff_tget_short(&s->gb, le); |
| if (bytestream2_get_bytes_left(&s->gb) < entries * 12) |
| return AVERROR_INVALIDDATA; |
| for (i = 0; i < entries; i++) { |
| if ((ret = tiff_decode_tag(s, p)) < 0) |
| return ret; |
| } |
| |
| if (s->get_thumbnail && !s->is_thumbnail) { |
| av_log(avctx, AV_LOG_INFO, "No embedded thumbnail present\n"); |
| return AVERROR_EOF; |
| } |
| |
| /** whether we should process this IFD's SubIFD */ |
| retry_for_subifd = s->sub_ifd && (s->get_subimage || (!s->get_thumbnail && s->is_thumbnail)); |
| /** whether we should process this multi-page IFD's next page */ |
| retry_for_page = s->get_page && s->cur_page + 1 < s->get_page; // get_page is 1-indexed |
| |
| if (retry_for_page) { |
| // set offset to the next IFD |
| off = ff_tget_long(&s->gb, le); |
| } else if (retry_for_subifd) { |
| // set offset to the SubIFD |
| off = s->sub_ifd; |
| } |
| |
| if (retry_for_subifd || retry_for_page) { |
| if (off >= UINT_MAX - 14 || avpkt->size < off + 14) { |
| av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| s->sub_ifd = 0; |
| goto again; |
| } |
| |
| for (i = 0; i<s->geotag_count; i++) { |
| const char *keyname = get_geokey_name(s->geotags[i].key); |
| if (!keyname) { |
| av_log(avctx, AV_LOG_WARNING, "Unknown or unsupported GeoTIFF key %d\n", s->geotags[i].key); |
| continue; |
| } |
| if (get_geokey_type(s->geotags[i].key) != s->geotags[i].type) { |
| av_log(avctx, AV_LOG_WARNING, "Type of GeoTIFF key %d is wrong\n", s->geotags[i].key); |
| continue; |
| } |
| ret = av_dict_set(&p->metadata, keyname, s->geotags[i].val, 0); |
| if (ret<0) { |
| av_log(avctx, AV_LOG_ERROR, "Writing metadata with key '%s' failed\n", keyname); |
| return ret; |
| } |
| } |
| |
| if (!s->strippos && !s->stripoff) { |
| av_log(avctx, AV_LOG_ERROR, "Image data is missing\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| /* now we have the data and may start decoding */ |
| if ((ret = init_image(s, &frame)) < 0) |
| return ret; |
| |
| if (s->strips == 1 && !s->stripsize) { |
| av_log(avctx, AV_LOG_WARNING, "Image data size missing\n"); |
| s->stripsize = avpkt->size - s->stripoff; |
| } |
| |
| if (s->stripsizesoff) { |
| if (s->stripsizesoff >= (unsigned)avpkt->size) |
| return AVERROR_INVALIDDATA; |
| bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff, |
| avpkt->size - s->stripsizesoff); |
| } |
| if (s->strippos) { |
| if (s->strippos >= (unsigned)avpkt->size) |
| return AVERROR_INVALIDDATA; |
| bytestream2_init(&stripdata, avpkt->data + s->strippos, |
| avpkt->size - s->strippos); |
| } |
| |
| if (s->rps <= 0 || s->rps % s->subsampling[1]) { |
| av_log(avctx, AV_LOG_ERROR, "rps %d invalid\n", s->rps); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| planes = s->planar ? s->bppcount : 1; |
| for (plane = 0; plane < planes; plane++) { |
| uint8_t *five_planes = NULL; |
| int remaining = avpkt->size; |
| int decoded_height; |
| stride = p->linesize[plane]; |
| dst = p->data[plane]; |
| if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED && |
| s->avctx->pix_fmt == AV_PIX_FMT_RGBA) { |
| stride = stride * 5 / 4; |
| five_planes = |
| dst = av_malloc(stride * s->height); |
| if (!dst) |
| return AVERROR(ENOMEM); |
| } |
| for (i = 0; i < s->height; i += s->rps) { |
| if (i) |
| dst += s->rps * stride; |
| if (s->stripsizesoff) |
| ssize = ff_tget(&stripsizes, s->sstype, le); |
| else |
| ssize = s->stripsize; |
| |
| if (s->strippos) |
| soff = ff_tget(&stripdata, s->sot, le); |
| else |
| soff = s->stripoff; |
| |
| if (soff > avpkt->size || ssize > avpkt->size - soff || ssize > remaining) { |
| av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n"); |
| av_freep(&five_planes); |
| return AVERROR_INVALIDDATA; |
| } |
| remaining -= ssize; |
| if ((ret = tiff_unpack_strip(s, p, dst, stride, avpkt->data + soff, ssize, i, |
| FFMIN(s->rps, s->height - i))) < 0) { |
| if (avctx->err_recognition & AV_EF_EXPLODE) { |
| av_freep(&five_planes); |
| return ret; |
| } |
| break; |
| } |
| } |
| decoded_height = FFMIN(i, s->height); |
| |
| if (s->predictor == 2) { |
| if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) { |
| av_log(s->avctx, AV_LOG_ERROR, "predictor == 2 with YUV is unsupported"); |
| return AVERROR_PATCHWELCOME; |
| } |
| dst = five_planes ? five_planes : p->data[plane]; |
| soff = s->bpp >> 3; |
| if (s->planar) |
| soff = FFMAX(soff / s->bppcount, 1); |
| ssize = s->width * soff; |
| if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE || |
| s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE || |
| s->avctx->pix_fmt == AV_PIX_FMT_GRAY16LE || |
| s->avctx->pix_fmt == AV_PIX_FMT_YA16LE || |
| s->avctx->pix_fmt == AV_PIX_FMT_GBRP16LE || |
| s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16LE) { |
| for (i = 0; i < decoded_height; i++) { |
| for (j = soff; j < ssize; j += 2) |
| AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff)); |
| dst += stride; |
| } |
| } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE || |
| s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE || |
| s->avctx->pix_fmt == AV_PIX_FMT_GRAY16BE || |
| s->avctx->pix_fmt == AV_PIX_FMT_YA16BE || |
| s->avctx->pix_fmt == AV_PIX_FMT_GBRP16BE || |
| s->avctx->pix_fmt == AV_PIX_FMT_GBRAP16BE) { |
| for (i = 0; i < decoded_height; i++) { |
| for (j = soff; j < ssize; j += 2) |
| AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff)); |
| dst += stride; |
| } |
| } else { |
| for (i = 0; i < decoded_height; i++) { |
| for (j = soff; j < ssize; j++) |
| dst[j] += dst[j - soff]; |
| dst += stride; |
| } |
| } |
| } |
| |
| if (s->photometric == TIFF_PHOTOMETRIC_WHITE_IS_ZERO) { |
| int c = (s->avctx->pix_fmt == AV_PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255); |
| dst = p->data[plane]; |
| for (i = 0; i < s->height; i++) { |
| for (j = 0; j < stride; j++) |
| dst[j] = c - dst[j]; |
| dst += stride; |
| } |
| } |
| |
| if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED && |
| (s->avctx->pix_fmt == AV_PIX_FMT_RGB0 || s->avctx->pix_fmt == AV_PIX_FMT_RGBA)) { |
| int x = s->avctx->pix_fmt == AV_PIX_FMT_RGB0 ? 4 : 5; |
| uint8_t *src = five_planes ? five_planes : p->data[plane]; |
| dst = p->data[plane]; |
| for (i = 0; i < s->height; i++) { |
| for (j = 0; j < s->width; j++) { |
| int k = 255 - src[x * j + 3]; |
| int r = (255 - src[x * j ]) * k; |
| int g = (255 - src[x * j + 1]) * k; |
| int b = (255 - src[x * j + 2]) * k; |
| dst[4 * j ] = r * 257 >> 16; |
| dst[4 * j + 1] = g * 257 >> 16; |
| dst[4 * j + 2] = b * 257 >> 16; |
| dst[4 * j + 3] = s->avctx->pix_fmt == AV_PIX_FMT_RGBA ? src[x * j + 4] : 255; |
| } |
| src += stride; |
| dst += p->linesize[plane]; |
| } |
| av_freep(&five_planes); |
| } else if (s->photometric == TIFF_PHOTOMETRIC_SEPARATED && |
| s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) { |
| dst = p->data[plane]; |
| for (i = 0; i < s->height; i++) { |
| for (j = 0; j < s->width; j++) { |
| uint64_t k = 65535 - AV_RB16(dst + 8 * j + 6); |
| uint64_t r = (65535 - AV_RB16(dst + 8 * j )) * k; |
| uint64_t g = (65535 - AV_RB16(dst + 8 * j + 2)) * k; |
| uint64_t b = (65535 - AV_RB16(dst + 8 * j + 4)) * k; |
| AV_WB16(dst + 8 * j , r * 65537 >> 32); |
| AV_WB16(dst + 8 * j + 2, g * 65537 >> 32); |
| AV_WB16(dst + 8 * j + 4, b * 65537 >> 32); |
| AV_WB16(dst + 8 * j + 6, 65535); |
| } |
| dst += p->linesize[plane]; |
| } |
| } |
| } |
| |
| if (s->planar && s->bppcount > 2) { |
| FFSWAP(uint8_t*, p->data[0], p->data[2]); |
| FFSWAP(int, p->linesize[0], p->linesize[2]); |
| FFSWAP(uint8_t*, p->data[0], p->data[1]); |
| FFSWAP(int, p->linesize[0], p->linesize[1]); |
| } |
| |
| if (s->is_bayer && s->white_level && s->bpp == 16) { |
| uint16_t *dst = (uint16_t *)p->data[0]; |
| for (i = 0; i < s->height; i++) { |
| for (j = 0; j < s->width; j++) |
| dst[j] = FFMIN((dst[j] / (float)s->white_level) * 65535, 65535); |
| dst += stride / 2; |
| } |
| } |
| |
| *got_frame = 1; |
| |
| return avpkt->size; |
| } |
| |
| static av_cold int tiff_init(AVCodecContext *avctx) |
| { |
| TiffContext *s = avctx->priv_data; |
| |
| s->width = 0; |
| s->height = 0; |
| s->subsampling[0] = |
| s->subsampling[1] = 1; |
| s->avctx = avctx; |
| ff_lzw_decode_open(&s->lzw); |
| if (!s->lzw) |
| return AVERROR(ENOMEM); |
| ff_ccitt_unpack_init(); |
| |
| return 0; |
| } |
| |
| static av_cold int tiff_end(AVCodecContext *avctx) |
| { |
| TiffContext *const s = avctx->priv_data; |
| |
| free_geotags(s); |
| |
| ff_lzw_decode_close(&s->lzw); |
| av_freep(&s->deinvert_buf); |
| s->deinvert_buf_size = 0; |
| av_freep(&s->yuv_line); |
| s->yuv_line_size = 0; |
| av_freep(&s->fax_buffer); |
| s->fax_buffer_size = 0; |
| return 0; |
| } |
| |
| #define OFFSET(x) offsetof(TiffContext, x) |
| static const AVOption tiff_options[] = { |
| { "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 }, |
| { "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 }, |
| { "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 }, |
| { NULL }, |
| }; |
| |
| static const AVClass tiff_decoder_class = { |
| .class_name = "TIFF decoder", |
| .item_name = av_default_item_name, |
| .option = tiff_options, |
| .version = LIBAVUTIL_VERSION_INT, |
| }; |
| |
| AVCodec ff_tiff_decoder = { |
| .name = "tiff", |
| .long_name = NULL_IF_CONFIG_SMALL("TIFF image"), |
| .type = AVMEDIA_TYPE_VIDEO, |
| .id = AV_CODEC_ID_TIFF, |
| .priv_data_size = sizeof(TiffContext), |
| .init = tiff_init, |
| .close = tiff_end, |
| .decode = decode_frame, |
| .init_thread_copy = ONLY_IF_THREADS_ENABLED(tiff_init), |
| .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS, |
| .priv_class = &tiff_decoder_class, |
| }; |