2006-10-13 10:48:29 +00:00
|
|
|
/*
|
|
|
|
* 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
|
|
|
|
*/
|
2007-04-04 11:43:08 +00:00
|
|
|
|
|
|
|
/**
|
2010-04-20 14:45:34 +00:00
|
|
|
* @file
|
2011-05-09 17:21:26 +00:00
|
|
|
* TIFF image decoder
|
2007-04-04 11:43:08 +00:00
|
|
|
* @author Konstantin Shishkov
|
|
|
|
*/
|
2011-07-14 01:46:19 +00:00
|
|
|
|
2006-10-13 10:48:29 +00:00
|
|
|
#include "avcodec.h"
|
2012-07-15 20:58:13 +00:00
|
|
|
#include "bytestream.h"
|
2009-01-13 23:44:16 +00:00
|
|
|
#if CONFIG_ZLIB
|
2006-10-13 10:48:29 +00:00
|
|
|
#include <zlib.h>
|
|
|
|
#endif
|
2006-10-26 04:15:48 +00:00
|
|
|
#include "lzw.h"
|
2007-04-03 13:43:57 +00:00
|
|
|
#include "tiff.h"
|
2011-10-03 22:19:52 +00:00
|
|
|
#include "tiff_data.h"
|
2008-12-26 18:42:26 +00:00
|
|
|
#include "faxcompr.h"
|
2009-11-09 09:11:35 +00:00
|
|
|
#include "libavutil/common.h"
|
2009-12-03 19:19:57 +00:00
|
|
|
#include "libavutil/intreadwrite.h"
|
2011-02-07 13:37:08 +00:00
|
|
|
#include "libavutil/imgutils.h"
|
2011-10-03 22:19:52 +00:00
|
|
|
#include "libavutil/avstring.h"
|
2006-11-13 11:34:46 +00:00
|
|
|
|
2006-10-13 10:48:29 +00:00
|
|
|
typedef struct TiffContext {
|
|
|
|
AVCodecContext *avctx;
|
|
|
|
AVFrame picture;
|
2012-07-15 20:58:13 +00:00
|
|
|
GetByteContext gb;
|
2006-10-13 10:48:29 +00:00
|
|
|
|
|
|
|
int width, height;
|
2011-05-09 10:51:24 +00:00
|
|
|
unsigned int bpp, bppcount;
|
2011-05-23 23:17:25 +00:00
|
|
|
uint32_t palette[256];
|
|
|
|
int palette_is_set;
|
2006-10-13 10:48:29 +00:00
|
|
|
int le;
|
2011-05-09 19:05:42 +00:00
|
|
|
enum TiffCompr compr;
|
2006-11-13 05:32:10 +00:00
|
|
|
int invert;
|
2008-12-26 18:42:26 +00:00
|
|
|
int fax_opts;
|
2008-12-22 06:50:18 +00:00
|
|
|
int predictor;
|
2009-09-24 18:30:28 +00:00
|
|
|
int fill_order;
|
2006-10-13 10:48:29 +00:00
|
|
|
|
2008-12-22 06:50:18 +00:00
|
|
|
int strips, rps, sstype;
|
2006-10-13 10:48:29 +00:00
|
|
|
int sot;
|
2012-07-15 20:58:13 +00:00
|
|
|
int stripsizesoff, stripsize, stripoff, strippos;
|
2006-10-26 04:15:48 +00:00
|
|
|
LZWState *lzw;
|
2011-10-03 22:19:52 +00:00
|
|
|
|
|
|
|
int geotag_count;
|
|
|
|
TiffGeoTag *geotags;
|
2006-10-13 10:48:29 +00:00
|
|
|
} TiffContext;
|
|
|
|
|
2012-07-15 20:58:13 +00:00
|
|
|
static unsigned tget_short(GetByteContext *gb, int le)
|
2012-04-13 01:28:37 +00:00
|
|
|
{
|
2012-07-16 00:31:11 +00:00
|
|
|
unsigned v = le ? bytestream2_get_le16u(gb) : bytestream2_get_be16u(gb);
|
2006-10-13 10:48:29 +00:00
|
|
|
return v;
|
|
|
|
}
|
|
|
|
|
2012-07-15 20:58:13 +00:00
|
|
|
static unsigned tget_long(GetByteContext *gb, int le)
|
2012-04-13 01:28:37 +00:00
|
|
|
{
|
2012-07-16 00:31:11 +00:00
|
|
|
unsigned v = le ? bytestream2_get_le32u(gb) : bytestream2_get_be32u(gb);
|
2006-10-13 10:48:29 +00:00
|
|
|
return v;
|
|
|
|
}
|
|
|
|
|
2012-07-15 20:58:13 +00:00
|
|
|
static double tget_double(GetByteContext *gb, int le)
|
2011-10-03 22:19:52 +00:00
|
|
|
{
|
2012-07-16 00:31:11 +00:00
|
|
|
av_alias64 i = { .u64 = le ? bytestream2_get_le64u(gb) : bytestream2_get_be64u(gb)};
|
2011-10-03 22:19:52 +00:00
|
|
|
return i.f64;
|
|
|
|
}
|
|
|
|
|
2012-07-15 20:58:13 +00:00
|
|
|
static unsigned tget(GetByteContext *gb, int type, int le)
|
2012-04-13 01:28:37 +00:00
|
|
|
{
|
|
|
|
switch (type) {
|
2012-07-16 00:31:11 +00:00
|
|
|
case TIFF_BYTE : return bytestream2_get_byteu(gb);
|
2012-07-15 20:58:13 +00:00
|
|
|
case TIFF_SHORT: return tget_short(gb, le);
|
|
|
|
case TIFF_LONG : return tget_long(gb, le);
|
2012-02-23 18:22:51 +00:00
|
|
|
default : return UINT_MAX;
|
2006-10-13 10:48:29 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2011-10-03 22:19:52 +00:00
|
|
|
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);
|
|
|
|
}
|
|
|
|
|
|
|
|
#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)
|
|
|
|
{
|
|
|
|
return ((TiffGeoTagKeyName*)bsearch(&id, keys, n, sizeof(keys[0]), cmp_id_key))->name;
|
|
|
|
}
|
|
|
|
|
|
|
|
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:
|
|
|
|
return av_strdup(search_keyval(ff_tiff_proj_cs_type_codes, FF_ARRAY_ELEMS(ff_tiff_proj_cs_type_codes), val));
|
|
|
|
break;
|
|
|
|
case TIFF_PROJECTION_GEOKEY:
|
|
|
|
return av_strdup(search_keyval(ff_tiff_projection_codes, FF_ARRAY_ELEMS(ff_tiff_projection_codes), val));
|
|
|
|
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;
|
|
|
|
if (!sep) sep = ", ";
|
|
|
|
ap = av_malloc((15 + strlen(sep)) * count);
|
|
|
|
if (!ap)
|
|
|
|
return NULL;
|
|
|
|
ap0 = ap;
|
|
|
|
ap[0] = '\0';
|
|
|
|
for (i = 0; i < count; i++) {
|
|
|
|
int l = snprintf(ap, 15 + strlen(sep), "%f%s", dp[i], sep);
|
|
|
|
ap += l;
|
|
|
|
}
|
|
|
|
ap0[strlen(ap0) - strlen(sep)] = '\0';
|
|
|
|
return ap0;
|
|
|
|
}
|
|
|
|
|
2012-07-15 20:58:13 +00:00
|
|
|
static char *shorts2str(int16_t *sp, int count, const char *sep)
|
2011-10-03 22:19:52 +00:00
|
|
|
{
|
|
|
|
int i;
|
|
|
|
char *ap, *ap0;
|
|
|
|
if (!sep) sep = ", ";
|
|
|
|
ap = av_malloc((5 + strlen(sep)) * count);
|
|
|
|
if (!ap)
|
|
|
|
return NULL;
|
|
|
|
ap0 = ap;
|
|
|
|
ap[0] = '\0';
|
|
|
|
for (i = 0; i < count; i++) {
|
|
|
|
int l = snprintf(ap, 5 + strlen(sep), "%d%s", sp[i], sep);
|
|
|
|
ap += l;
|
|
|
|
}
|
|
|
|
ap0[strlen(ap0) - strlen(sep)] = '\0';
|
|
|
|
return ap0;
|
|
|
|
}
|
|
|
|
|
2012-07-15 20:58:13 +00:00
|
|
|
static int add_doubles_metadata(int count,
|
2011-10-03 22:19:52 +00:00
|
|
|
const char *name, const char *sep,
|
|
|
|
TiffContext *s)
|
|
|
|
{
|
|
|
|
char *ap;
|
|
|
|
int i;
|
2012-07-15 20:58:13 +00:00
|
|
|
double *dp;
|
|
|
|
|
2012-07-16 00:31:11 +00:00
|
|
|
if (count >= INT_MAX / sizeof(int64_t))
|
|
|
|
return AVERROR_INVALIDDATA;
|
2012-07-15 20:58:13 +00:00
|
|
|
if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
|
2012-07-16 00:31:11 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2012-07-15 20:58:13 +00:00
|
|
|
|
|
|
|
dp = av_malloc(count * sizeof(double));
|
2011-10-03 22:19:52 +00:00
|
|
|
if (!dp)
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
|
|
|
|
for (i = 0; i < count; i++)
|
2012-07-15 20:58:13 +00:00
|
|
|
dp[i] = tget_double(&s->gb, s->le);
|
2011-10-03 22:19:52 +00:00
|
|
|
ap = doubles2str(dp, count, sep);
|
|
|
|
av_freep(&dp);
|
|
|
|
if (!ap)
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
av_dict_set(&s->picture.metadata, name, ap, AV_DICT_DONT_STRDUP_VAL);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-07-15 20:58:13 +00:00
|
|
|
static int add_shorts_metadata(int count, const char *name,
|
2011-10-03 22:19:52 +00:00
|
|
|
const char *sep, TiffContext *s)
|
|
|
|
{
|
|
|
|
char *ap;
|
|
|
|
int i;
|
2012-07-15 20:58:13 +00:00
|
|
|
int16_t *sp;
|
|
|
|
|
2012-07-16 00:31:11 +00:00
|
|
|
if (count >= INT_MAX / sizeof(int16_t))
|
|
|
|
return AVERROR_INVALIDDATA;
|
2012-07-15 20:58:13 +00:00
|
|
|
if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int16_t))
|
2012-07-16 00:31:11 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2012-07-15 20:58:13 +00:00
|
|
|
|
|
|
|
sp = av_malloc(count * sizeof(int16_t));
|
2011-10-03 22:19:52 +00:00
|
|
|
if (!sp)
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
|
|
|
|
for (i = 0; i < count; i++)
|
2012-07-15 20:58:13 +00:00
|
|
|
sp[i] = tget_short(&s->gb, s->le);
|
2011-10-03 22:19:52 +00:00
|
|
|
ap = shorts2str(sp, count, sep);
|
|
|
|
av_freep(&sp);
|
|
|
|
if (!ap)
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
av_dict_set(&s->picture.metadata, name, ap, AV_DICT_DONT_STRDUP_VAL);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-07-16 00:55:18 +00:00
|
|
|
static int add_string_metadata(int count, const char *name,
|
|
|
|
TiffContext *s)
|
|
|
|
{
|
|
|
|
char *value;
|
|
|
|
|
|
|
|
if (bytestream2_get_bytes_left(&s->gb) < count)
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
|
|
|
|
value = av_malloc(count + 1);
|
|
|
|
if (!value)
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
|
|
|
|
bytestream2_get_bufferu(&s->gb, value, count);
|
|
|
|
value[count] = 0;
|
|
|
|
|
|
|
|
av_dict_set(&s->picture.metadata, name, value, AV_DICT_DONT_STRDUP_VAL);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-07-15 20:58:13 +00:00
|
|
|
static int add_metadata(int count, int type,
|
2011-10-03 22:19:52 +00:00
|
|
|
const char *name, const char *sep, TiffContext *s)
|
|
|
|
{
|
|
|
|
switch(type) {
|
2012-07-15 20:58:13 +00:00
|
|
|
case TIFF_DOUBLE: return add_doubles_metadata(count, name, sep, s);
|
|
|
|
case TIFF_SHORT : return add_shorts_metadata(count, name, sep, s);
|
2012-07-16 00:55:18 +00:00
|
|
|
case TIFF_STRING: return add_string_metadata(count, name, s);
|
2011-10-03 22:19:52 +00:00
|
|
|
default : return AVERROR_INVALIDDATA;
|
|
|
|
};
|
|
|
|
}
|
|
|
|
|
2009-09-27 09:43:11 +00:00
|
|
|
#if CONFIG_ZLIB
|
2012-04-13 01:28:37 +00:00
|
|
|
static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
|
|
|
|
int size)
|
2009-09-27 07:01:01 +00:00
|
|
|
{
|
2011-06-06 12:13:02 +00:00
|
|
|
z_stream zstream = { 0 };
|
2009-09-27 07:01:01 +00:00
|
|
|
int zret;
|
|
|
|
|
|
|
|
zstream.next_in = 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;
|
|
|
|
}
|
2009-09-27 09:43:11 +00:00
|
|
|
#endif
|
2009-09-27 07:01:01 +00:00
|
|
|
|
2011-08-23 18:38:43 +00:00
|
|
|
static void av_always_inline horizontal_fill(unsigned int bpp, uint8_t* dst,
|
|
|
|
int usePtr, const uint8_t *src,
|
|
|
|
uint8_t c, int width, int offset)
|
|
|
|
{
|
2011-12-31 00:53:22 +00:00
|
|
|
switch (bpp) {
|
2011-12-31 01:00:33 +00:00
|
|
|
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;
|
2011-12-31 00:53:22 +00:00
|
|
|
case 2:
|
2011-12-31 00:58:16 +00:00
|
|
|
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;
|
2011-08-23 18:38:43 +00:00
|
|
|
}
|
2011-12-31 00:53:22 +00:00
|
|
|
break;
|
|
|
|
case 4:
|
2011-12-31 00:58:16 +00:00
|
|
|
while (--width >= 0) {
|
|
|
|
dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
|
|
|
|
dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
|
2011-08-23 18:38:43 +00:00
|
|
|
}
|
2011-12-31 00:53:22 +00:00
|
|
|
break;
|
|
|
|
default:
|
2011-08-23 18:38:43 +00:00
|
|
|
if (usePtr) {
|
|
|
|
memcpy(dst + offset, src, width);
|
|
|
|
} else {
|
|
|
|
memset(dst + offset, c, width);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-04-13 01:28:37 +00:00
|
|
|
static int tiff_unpack_strip(TiffContext *s, uint8_t *dst, int stride,
|
|
|
|
const uint8_t *src, int size, int lines)
|
|
|
|
{
|
2006-10-13 10:48:29 +00:00
|
|
|
int c, line, pixels, code;
|
2008-02-01 14:28:22 +00:00
|
|
|
const uint8_t *ssrc = src;
|
2011-05-09 20:11:57 +00:00
|
|
|
int width = ((s->width * s->bpp) + 7) >> 3;
|
2006-10-13 10:48:29 +00:00
|
|
|
|
2012-04-13 01:22:07 +00:00
|
|
|
if (size <= 0)
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
|
|
|
|
#if CONFIG_ZLIB
|
2012-04-13 01:28:37 +00:00
|
|
|
if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE) {
|
|
|
|
uint8_t *zbuf;
|
|
|
|
unsigned long outlen;
|
2009-09-27 07:01:01 +00:00
|
|
|
int ret;
|
2006-10-13 10:48:29 +00:00
|
|
|
outlen = width * lines;
|
|
|
|
zbuf = av_malloc(outlen);
|
2012-04-13 01:22:07 +00:00
|
|
|
if (!zbuf)
|
|
|
|
return AVERROR(ENOMEM);
|
2009-09-27 07:01:01 +00:00
|
|
|
ret = tiff_uncompress(zbuf, &outlen, src, size);
|
2012-04-13 01:28:37 +00:00
|
|
|
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);
|
2006-10-13 10:48:29 +00:00
|
|
|
av_free(zbuf);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
src = zbuf;
|
2012-04-13 01:28:37 +00:00
|
|
|
for (line = 0; line < lines; line++) {
|
2011-12-31 03:49:33 +00:00
|
|
|
if(s->bpp < 8 && s->avctx->pix_fmt == PIX_FMT_PAL8){
|
|
|
|
horizontal_fill(s->bpp, dst, 1, src, 0, width, 0);
|
|
|
|
}else{
|
|
|
|
memcpy(dst, src, width);
|
|
|
|
}
|
2006-10-13 10:48:29 +00:00
|
|
|
dst += stride;
|
|
|
|
src += width;
|
|
|
|
}
|
|
|
|
av_free(zbuf);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#endif
|
2012-04-13 01:28:37 +00:00
|
|
|
if (s->compr == TIFF_LZW) {
|
|
|
|
if (ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF) < 0) {
|
2006-10-26 04:15:48 +00:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
}
|
2012-04-13 01:28:37 +00:00
|
|
|
if (s->compr == TIFF_CCITT_RLE || s->compr == TIFF_G3
|
|
|
|
|| s->compr == TIFF_G4) {
|
2008-12-26 18:42:26 +00:00
|
|
|
int i, ret = 0;
|
2012-04-13 01:28:37 +00:00
|
|
|
uint8_t *src2 = av_malloc((unsigned)size +
|
|
|
|
FF_INPUT_BUFFER_PADDING_SIZE);
|
2008-12-26 18:42:26 +00:00
|
|
|
|
2012-04-13 01:22:07 +00:00
|
|
|
if (!src2) {
|
2012-04-13 01:28:37 +00:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
|
|
"Error allocating temporary buffer\n");
|
2012-04-13 01:22:07 +00:00
|
|
|
return AVERROR(ENOMEM);
|
2008-12-26 18:42:26 +00:00
|
|
|
}
|
2012-04-13 01:28:37 +00:00
|
|
|
if (s->fax_opts & 2) {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
|
|
"Uncompressed fax mode is not supported (yet)\n");
|
2009-10-01 06:31:49 +00:00
|
|
|
av_free(src2);
|
|
|
|
return -1;
|
|
|
|
}
|
2012-04-13 01:28:37 +00:00
|
|
|
if (!s->fill_order) {
|
2009-09-24 18:30:28 +00:00
|
|
|
memcpy(src2, src, size);
|
2012-04-13 01:28:37 +00:00
|
|
|
} else {
|
|
|
|
for (i = 0; i < size; i++)
|
2009-11-09 09:11:35 +00:00
|
|
|
src2[i] = av_reverse[src[i]];
|
2009-09-24 18:30:28 +00:00
|
|
|
}
|
2012-04-13 01:28:37 +00:00
|
|
|
memset(src2 + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
|
|
|
|
switch (s->compr) {
|
2008-12-26 18:42:26 +00:00
|
|
|
case TIFF_CCITT_RLE:
|
|
|
|
case TIFF_G3:
|
|
|
|
case TIFF_G4:
|
2012-04-13 01:28:37 +00:00
|
|
|
ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
|
|
|
|
s->compr, s->fax_opts);
|
2008-12-26 18:42:26 +00:00
|
|
|
break;
|
|
|
|
}
|
2011-12-31 03:49:33 +00:00
|
|
|
if (s->bpp < 8 && s->avctx->pix_fmt == PIX_FMT_PAL8)
|
2011-12-31 01:00:33 +00:00
|
|
|
for (line = 0; line < lines; line++) {
|
|
|
|
horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
|
|
|
|
dst += stride;
|
|
|
|
}
|
2008-12-26 18:42:26 +00:00
|
|
|
av_free(src2);
|
|
|
|
return ret;
|
|
|
|
}
|
2012-04-13 01:28:37 +00:00
|
|
|
for (line = 0; line < lines; line++) {
|
|
|
|
if (src - ssrc > size) {
|
2006-10-13 10:48:29 +00:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
|
|
|
|
return -1;
|
|
|
|
}
|
2012-04-13 01:28:37 +00:00
|
|
|
switch (s->compr) {
|
2006-10-13 10:48:29 +00:00
|
|
|
case TIFF_RAW:
|
2011-09-30 22:45:03 +00:00
|
|
|
if (ssrc + size - src < width)
|
|
|
|
return AVERROR_INVALIDDATA;
|
2011-05-09 19:59:20 +00:00
|
|
|
if (!s->fill_order) {
|
2011-12-31 19:45:04 +00:00
|
|
|
horizontal_fill(s->bpp * (s->avctx->pix_fmt == PIX_FMT_PAL8),
|
|
|
|
dst, 1, src, 0, width, 0);
|
2011-05-09 19:59:20 +00:00
|
|
|
} else {
|
|
|
|
int i;
|
|
|
|
for (i = 0; i < width; i++)
|
|
|
|
dst[i] = av_reverse[src[i]];
|
|
|
|
}
|
2008-12-22 06:39:31 +00:00
|
|
|
src += width;
|
2006-10-13 10:48:29 +00:00
|
|
|
break;
|
|
|
|
case TIFF_PACKBITS:
|
2012-04-13 01:28:37 +00:00
|
|
|
for (pixels = 0; pixels < width;) {
|
2012-04-15 18:19:42 +00:00
|
|
|
if (ssrc + size - src < 2) {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
2012-04-13 01:28:37 +00:00
|
|
|
code = (int8_t) * src++;
|
|
|
|
if (code >= 0) {
|
2006-10-13 10:48:29 +00:00
|
|
|
code++;
|
2012-04-13 01:28:37 +00:00
|
|
|
if (pixels + code > width) {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
|
|
"Copy went out of bounds\n");
|
2006-10-13 10:48:29 +00:00
|
|
|
return -1;
|
|
|
|
}
|
2012-04-15 18:19:42 +00:00
|
|
|
if (ssrc + size - src < code) {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Read went out of bounds\n");
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
2011-12-31 19:45:04 +00:00
|
|
|
horizontal_fill(s->bpp * (s->avctx->pix_fmt == PIX_FMT_PAL8),
|
|
|
|
dst, 1, src, 0, code, pixels);
|
2006-10-13 10:48:29 +00:00
|
|
|
src += code;
|
|
|
|
pixels += code;
|
2012-04-13 01:28:37 +00:00
|
|
|
} else if (code != -128) { // -127..-1
|
2006-10-13 10:48:29 +00:00
|
|
|
code = (-code) + 1;
|
2012-04-13 01:28:37 +00:00
|
|
|
if (pixels + code > width) {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
|
|
"Run went out of bounds\n");
|
2006-10-13 10:48:29 +00:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
c = *src++;
|
2011-12-31 19:45:04 +00:00
|
|
|
horizontal_fill(s->bpp * (s->avctx->pix_fmt == PIX_FMT_PAL8),
|
|
|
|
dst, 0, NULL, c, code, pixels);
|
2006-10-13 10:48:29 +00:00
|
|
|
pixels += code;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
2006-10-26 04:15:48 +00:00
|
|
|
case TIFF_LZW:
|
|
|
|
pixels = ff_lzw_decode(s->lzw, dst, width);
|
2012-04-13 01:28:37 +00:00
|
|
|
if (pixels < width) {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n",
|
|
|
|
pixels, width);
|
2006-10-26 04:15:48 +00:00
|
|
|
return -1;
|
|
|
|
}
|
2011-12-31 03:49:33 +00:00
|
|
|
if (s->bpp < 8 && s->avctx->pix_fmt == PIX_FMT_PAL8)
|
2011-12-31 00:58:16 +00:00
|
|
|
horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
|
2006-10-26 04:15:48 +00:00
|
|
|
break;
|
2006-10-13 10:48:29 +00:00
|
|
|
}
|
|
|
|
dst += stride;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-05-09 10:51:24 +00:00
|
|
|
static int init_image(TiffContext *s)
|
|
|
|
{
|
|
|
|
int i, ret;
|
|
|
|
uint32_t *pal;
|
|
|
|
|
|
|
|
switch (s->bpp * 10 + s->bppcount) {
|
|
|
|
case 11:
|
2011-12-31 03:49:33 +00:00
|
|
|
if (!s->palette_is_set) {
|
|
|
|
s->avctx->pix_fmt = PIX_FMT_MONOBLACK;
|
|
|
|
break;
|
|
|
|
}
|
2011-08-23 18:38:43 +00:00
|
|
|
case 21:
|
|
|
|
case 41:
|
2011-05-09 10:51:24 +00:00
|
|
|
case 81:
|
|
|
|
s->avctx->pix_fmt = PIX_FMT_PAL8;
|
|
|
|
break;
|
|
|
|
case 243:
|
|
|
|
s->avctx->pix_fmt = PIX_FMT_RGB24;
|
|
|
|
break;
|
|
|
|
case 161:
|
2012-07-06 01:09:19 +00:00
|
|
|
s->avctx->pix_fmt = s->le ? PIX_FMT_GRAY16LE : PIX_FMT_GRAY16BE;
|
2011-05-09 10:51:24 +00:00
|
|
|
break;
|
2012-01-22 03:49:46 +00:00
|
|
|
case 162:
|
|
|
|
s->avctx->pix_fmt = PIX_FMT_GRAY8A;
|
|
|
|
break;
|
2011-05-09 10:51:24 +00:00
|
|
|
case 324:
|
|
|
|
s->avctx->pix_fmt = PIX_FMT_RGBA;
|
|
|
|
break;
|
|
|
|
case 483:
|
|
|
|
s->avctx->pix_fmt = s->le ? PIX_FMT_RGB48LE : PIX_FMT_RGB48BE;
|
|
|
|
break;
|
2012-01-14 00:10:13 +00:00
|
|
|
case 644:
|
|
|
|
s->avctx->pix_fmt = s->le ? PIX_FMT_RGBA64LE : PIX_FMT_RGBA64BE;
|
|
|
|
break;
|
2011-05-09 10:51:24 +00:00
|
|
|
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->width != s->avctx->width || s->height != s->avctx->height) {
|
|
|
|
if ((ret = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
|
|
|
|
return ret;
|
|
|
|
avcodec_set_dimensions(s->avctx, s->width, s->height);
|
|
|
|
}
|
|
|
|
if (s->picture.data[0])
|
|
|
|
s->avctx->release_buffer(s->avctx, &s->picture);
|
|
|
|
if ((ret = s->avctx->get_buffer(s->avctx, &s->picture)) < 0) {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
|
|
|
|
return ret;
|
|
|
|
}
|
2011-05-23 23:17:25 +00:00
|
|
|
if (s->avctx->pix_fmt == PIX_FMT_PAL8) {
|
|
|
|
if (s->palette_is_set) {
|
|
|
|
memcpy(s->picture.data[1], s->palette, sizeof(s->palette));
|
|
|
|
} else {
|
|
|
|
/* make default grayscale pal */
|
|
|
|
pal = (uint32_t *) s->picture.data[1];
|
2011-09-06 22:17:02 +00:00
|
|
|
for (i = 0; i < 1<<s->bpp; i++)
|
2011-11-12 19:19:51 +00:00
|
|
|
pal[i] = 0xFF << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
|
2011-05-23 23:17:25 +00:00
|
|
|
}
|
2011-05-09 10:51:24 +00:00
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
2006-10-13 10:48:29 +00:00
|
|
|
|
2012-07-15 20:58:13 +00:00
|
|
|
static int tiff_decode_tag(TiffContext *s)
|
2006-10-13 10:48:29 +00:00
|
|
|
{
|
2012-02-23 18:22:51 +00:00
|
|
|
unsigned tag, type, count, off, value = 0;
|
2012-07-15 20:58:13 +00:00
|
|
|
int i, j, k, pos, start;
|
2011-10-03 22:19:52 +00:00
|
|
|
int ret;
|
2007-07-09 00:08:47 +00:00
|
|
|
uint32_t *pal;
|
2011-10-03 22:19:52 +00:00
|
|
|
double *dp;
|
2006-10-13 10:48:29 +00:00
|
|
|
|
2012-07-15 20:58:13 +00:00
|
|
|
tag = tget_short(&s->gb, s->le);
|
|
|
|
type = tget_short(&s->gb, s->le);
|
|
|
|
count = tget_long(&s->gb, s->le);
|
|
|
|
off = tget_long(&s->gb, s->le);
|
|
|
|
start = bytestream2_tell(&s->gb);
|
2006-10-13 10:48:29 +00:00
|
|
|
|
2012-02-23 18:47:50 +00:00
|
|
|
if (type == 0 || type >= FF_ARRAY_ELEMS(type_sizes)) {
|
2012-04-13 01:28:37 +00:00
|
|
|
av_log(s->avctx, AV_LOG_DEBUG, "Unknown tiff type (%u) encountered\n",
|
|
|
|
type);
|
2012-02-23 18:47:50 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-04-13 01:28:37 +00:00
|
|
|
if (count == 1) {
|
|
|
|
switch (type) {
|
2006-10-13 10:48:29 +00:00
|
|
|
case TIFF_BYTE:
|
|
|
|
case TIFF_SHORT:
|
2012-07-15 20:58:13 +00:00
|
|
|
bytestream2_seek(&s->gb, -4, SEEK_CUR);
|
|
|
|
value = tget(&s->gb, type, s->le);
|
2006-10-13 10:48:29 +00:00
|
|
|
break;
|
|
|
|
case TIFF_LONG:
|
|
|
|
value = off;
|
|
|
|
break;
|
2008-12-17 17:39:35 +00:00
|
|
|
case TIFF_STRING:
|
2012-04-13 01:28:37 +00:00
|
|
|
if (count <= 4) {
|
2012-07-15 20:58:13 +00:00
|
|
|
bytestream2_seek(&s->gb, -4, SEEK_CUR);
|
2008-12-17 17:39:35 +00:00
|
|
|
break;
|
|
|
|
}
|
2006-10-13 10:48:29 +00:00
|
|
|
default:
|
2012-02-23 18:22:51 +00:00
|
|
|
value = UINT_MAX;
|
2012-07-15 20:58:13 +00:00
|
|
|
bytestream2_seek(&s->gb, off, SEEK_SET);
|
2006-10-13 10:48:29 +00:00
|
|
|
}
|
2012-02-23 18:47:50 +00:00
|
|
|
} else {
|
|
|
|
if (count <= 4 && type_sizes[type] * count <= 4) {
|
2012-07-15 20:58:13 +00:00
|
|
|
bytestream2_seek(&s->gb, -4, SEEK_CUR);
|
2012-02-23 18:47:50 +00:00
|
|
|
} else {
|
2012-07-15 20:58:13 +00:00
|
|
|
bytestream2_seek(&s->gb, off, SEEK_SET);
|
2006-10-13 10:48:29 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-04-13 01:28:37 +00:00
|
|
|
switch (tag) {
|
2006-10-13 10:48:29 +00:00
|
|
|
case TIFF_WIDTH:
|
|
|
|
s->width = value;
|
|
|
|
break;
|
|
|
|
case TIFF_HEIGHT:
|
|
|
|
s->height = value;
|
|
|
|
break;
|
|
|
|
case TIFF_BPP:
|
2011-05-09 10:51:24 +00:00
|
|
|
s->bppcount = count;
|
2012-04-13 01:28:37 +00:00
|
|
|
if (count > 4) {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
|
|
"This format is not supported (bpp=%d, %d components)\n",
|
|
|
|
s->bpp, count);
|
2011-01-06 22:12:55 +00:00
|
|
|
return -1;
|
|
|
|
}
|
2012-04-13 01:28:37 +00:00
|
|
|
if (count == 1)
|
|
|
|
s->bpp = value;
|
|
|
|
else {
|
|
|
|
switch (type) {
|
2006-10-13 10:48:29 +00:00
|
|
|
case TIFF_BYTE:
|
2012-04-13 01:28:37 +00:00
|
|
|
s->bpp = (off & 0xFF) + ((off >> 8) & 0xFF) +
|
|
|
|
((off >> 16) & 0xFF) + ((off >> 24) & 0xFF);
|
2006-10-13 10:48:29 +00:00
|
|
|
break;
|
|
|
|
case TIFF_SHORT:
|
|
|
|
case TIFF_LONG:
|
2006-11-13 05:28:55 +00:00
|
|
|
s->bpp = 0;
|
2012-07-16 00:31:11 +00:00
|
|
|
if (bytestream2_get_bytes_left(&s->gb) < type_sizes[type] * count)
|
|
|
|
return -1;
|
|
|
|
for (i = 0; i < count; i++)
|
2012-07-15 20:58:13 +00:00
|
|
|
s->bpp += tget(&s->gb, type, s->le);
|
2006-10-13 10:48:29 +00:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
s->bpp = -1;
|
|
|
|
}
|
|
|
|
}
|
2011-05-09 10:51:24 +00:00
|
|
|
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;
|
2006-11-13 05:32:10 +00:00
|
|
|
}
|
2011-05-09 10:51:24 +00:00
|
|
|
if (s->bppcount == 1)
|
|
|
|
s->bpp *= value;
|
|
|
|
s->bppcount = value;
|
2006-10-13 10:48:29 +00:00
|
|
|
break;
|
|
|
|
case TIFF_COMPR:
|
|
|
|
s->compr = value;
|
2008-12-22 06:50:18 +00:00
|
|
|
s->predictor = 0;
|
2012-04-13 01:28:37 +00:00
|
|
|
switch (s->compr) {
|
2006-10-13 10:48:29 +00:00
|
|
|
case TIFF_RAW:
|
|
|
|
case TIFF_PACKBITS:
|
2006-10-26 04:15:48 +00:00
|
|
|
case TIFF_LZW:
|
2008-12-26 18:42:26 +00:00
|
|
|
case TIFF_CCITT_RLE:
|
|
|
|
break;
|
|
|
|
case TIFF_G3:
|
|
|
|
case TIFF_G4:
|
|
|
|
s->fax_opts = 0;
|
2006-10-13 10:48:29 +00:00
|
|
|
break;
|
|
|
|
case TIFF_DEFLATE:
|
|
|
|
case TIFF_ADOBE_DEFLATE:
|
2009-01-13 23:44:16 +00:00
|
|
|
#if CONFIG_ZLIB
|
2006-10-13 10:48:29 +00:00
|
|
|
break;
|
|
|
|
#else
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
|
|
|
|
return -1;
|
|
|
|
#endif
|
2006-11-13 05:29:45 +00:00
|
|
|
case TIFF_JPEG:
|
|
|
|
case TIFF_NEWJPEG:
|
2012-04-13 01:28:37 +00:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
|
|
"JPEG compression is not supported\n");
|
2006-11-13 05:29:45 +00:00
|
|
|
return -1;
|
2006-10-13 10:48:29 +00:00
|
|
|
default:
|
2012-04-13 01:28:37 +00:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",
|
|
|
|
s->compr);
|
2006-10-13 10:48:29 +00:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case TIFF_ROWSPERSTRIP:
|
2012-02-23 18:22:51 +00:00
|
|
|
if (type == TIFF_LONG && value == UINT_MAX)
|
2008-12-22 06:47:51 +00:00
|
|
|
value = s->avctx->height;
|
2012-04-13 01:28:37 +00:00
|
|
|
if (value < 1) {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
|
|
"Incorrect value of rows per strip\n");
|
2006-10-13 10:48:29 +00:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
s->rps = value;
|
|
|
|
break;
|
|
|
|
case TIFF_STRIP_OFFS:
|
2012-04-13 01:28:37 +00:00
|
|
|
if (count == 1) {
|
2012-07-15 20:58:13 +00:00
|
|
|
s->strippos = 0;
|
2006-10-13 10:48:29 +00:00
|
|
|
s->stripoff = value;
|
2012-04-13 01:28:37 +00:00
|
|
|
} else
|
2012-07-15 20:58:13 +00:00
|
|
|
s->strippos = off;
|
2006-10-13 10:48:29 +00:00
|
|
|
s->strips = count;
|
2012-04-13 01:28:37 +00:00
|
|
|
if (s->strips == 1)
|
|
|
|
s->rps = s->height;
|
2006-10-13 10:48:29 +00:00
|
|
|
s->sot = type;
|
2012-07-15 20:58:13 +00:00
|
|
|
if (s->strippos > bytestream2_size(&s->gb)) {
|
2012-04-13 01:28:37 +00:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
|
|
"Tag referencing position outside the image\n");
|
2006-10-13 10:48:29 +00:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case TIFF_STRIP_SIZE:
|
2012-04-13 01:28:37 +00:00
|
|
|
if (count == 1) {
|
2012-07-15 20:58:13 +00:00
|
|
|
s->stripsizesoff = 0;
|
2006-10-13 10:48:29 +00:00
|
|
|
s->stripsize = value;
|
|
|
|
s->strips = 1;
|
2012-04-13 01:28:37 +00:00
|
|
|
} else {
|
2012-07-15 20:58:13 +00:00
|
|
|
s->stripsizesoff = off;
|
2006-10-13 10:48:29 +00:00
|
|
|
}
|
|
|
|
s->strips = count;
|
2008-12-22 06:50:18 +00:00
|
|
|
s->sstype = type;
|
2012-07-15 20:58:13 +00:00
|
|
|
if (s->stripsizesoff > bytestream2_size(&s->gb)) {
|
2012-04-13 01:28:37 +00:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
|
|
"Tag referencing position outside the image\n");
|
2006-10-13 10:48:29 +00:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
break;
|
2012-01-10 18:45:44 +00:00
|
|
|
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;
|
2006-10-13 10:48:29 +00:00
|
|
|
case TIFF_PREDICTOR:
|
2008-12-22 06:50:18 +00:00
|
|
|
s->predictor = value;
|
2006-10-13 10:48:29 +00:00
|
|
|
break;
|
2006-11-13 05:32:10 +00:00
|
|
|
case TIFF_INVERT:
|
2012-04-13 01:28:37 +00:00
|
|
|
switch (value) {
|
2006-11-13 05:32:10 +00:00
|
|
|
case 0:
|
|
|
|
s->invert = 1;
|
|
|
|
break;
|
|
|
|
case 1:
|
|
|
|
s->invert = 0;
|
|
|
|
break;
|
2006-11-13 11:20:50 +00:00
|
|
|
case 2:
|
|
|
|
case 3:
|
|
|
|
break;
|
|
|
|
default:
|
2012-04-13 01:28:37 +00:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Color mode %d is not supported\n",
|
|
|
|
value);
|
2006-11-13 11:20:50 +00:00
|
|
|
return -1;
|
2006-11-13 05:32:10 +00:00
|
|
|
}
|
|
|
|
break;
|
2009-09-24 18:30:28 +00:00
|
|
|
case TIFF_FILL_ORDER:
|
2012-04-13 01:28:37 +00:00
|
|
|
if (value < 1 || value > 2) {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
|
|
"Unknown FillOrder value %d, trying default one\n", value);
|
2009-09-24 18:30:28 +00:00
|
|
|
value = 1;
|
|
|
|
}
|
|
|
|
s->fill_order = value - 1;
|
|
|
|
break;
|
2006-11-13 05:32:10 +00:00
|
|
|
case TIFF_PAL:
|
2011-05-23 23:17:25 +00:00
|
|
|
pal = (uint32_t *) s->palette;
|
2006-11-13 11:34:46 +00:00
|
|
|
off = type_sizes[type];
|
2012-07-15 20:58:13 +00:00
|
|
|
if (count / 3 > 256 || bytestream2_get_bytes_left(&s->gb) < count / 3 * off * 3)
|
2011-09-30 22:45:03 +00:00
|
|
|
return -1;
|
2006-11-13 11:34:46 +00:00
|
|
|
off = (type_sizes[type] - 1) << 3;
|
2012-07-15 20:58:13 +00:00
|
|
|
for (k = 2; k >= 0; k--) {
|
|
|
|
for (i = 0; i < count / 3; i++) {
|
|
|
|
if (k == 2)
|
|
|
|
pal[i] = 0xff << 24;
|
|
|
|
j = (tget(&s->gb, type, s->le) >> off) << (k * 8);
|
|
|
|
pal[i] |= j;
|
|
|
|
}
|
2006-11-13 05:32:10 +00:00
|
|
|
}
|
2011-05-23 23:17:25 +00:00
|
|
|
s->palette_is_set = 1;
|
2006-11-13 11:38:42 +00:00
|
|
|
break;
|
|
|
|
case TIFF_PLANAR:
|
2012-04-13 01:28:37 +00:00
|
|
|
if (value == 2) {
|
2006-11-13 11:38:42 +00:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Planar format is not supported\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
break;
|
2008-12-26 18:42:26 +00:00
|
|
|
case TIFF_T4OPTIONS:
|
2012-04-13 01:28:37 +00:00
|
|
|
if (s->compr == TIFF_G3)
|
2009-09-28 05:15:27 +00:00
|
|
|
s->fax_opts = value;
|
|
|
|
break;
|
2008-12-26 18:42:26 +00:00
|
|
|
case TIFF_T6OPTIONS:
|
2012-04-13 01:28:37 +00:00
|
|
|
if (s->compr == TIFF_G4)
|
2009-09-28 05:15:27 +00:00
|
|
|
s->fax_opts = value;
|
2008-12-26 18:42:26 +00:00
|
|
|
break;
|
2011-10-03 22:19:52 +00:00
|
|
|
#define ADD_METADATA(count, name, sep)\
|
2012-07-15 20:58:13 +00:00
|
|
|
if (ret = add_metadata(count, type, name, sep, s) < 0) {\
|
2011-10-03 22:19:52 +00:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\
|
|
|
|
return ret;\
|
|
|
|
}
|
|
|
|
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:
|
|
|
|
ADD_METADATA(1, "GeoTIFF_Version", NULL);
|
|
|
|
ADD_METADATA(2, "GeoTIFF_Key_Revision", ".");
|
2012-07-15 20:58:13 +00:00
|
|
|
s->geotag_count = tget_short(&s->gb, s->le);
|
2011-10-03 22:19:52 +00:00
|
|
|
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");
|
|
|
|
}
|
2012-07-16 00:31:11 +00:00
|
|
|
if (bytestream2_get_bytes_left(&s->gb) < s->geotag_count * sizeof(int16_t) * 4)
|
|
|
|
return -1;
|
2011-10-03 22:19:52 +00:00
|
|
|
s->geotags = av_mallocz(sizeof(TiffGeoTag) * s->geotag_count);
|
|
|
|
if (!s->geotags) {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
}
|
|
|
|
for (i = 0; i < s->geotag_count; i++) {
|
2012-07-15 20:58:13 +00:00
|
|
|
s->geotags[i].key = tget_short(&s->gb, s->le);
|
|
|
|
s->geotags[i].type = tget_short(&s->gb, s->le);
|
|
|
|
s->geotags[i].count = tget_short(&s->gb, s->le);
|
2011-10-03 22:19:52 +00:00
|
|
|
|
|
|
|
if (!s->geotags[i].type)
|
2012-07-15 20:58:13 +00:00
|
|
|
s->geotags[i].val = get_geokey_val(s->geotags[i].key, tget_short(&s->gb, s->le));
|
2011-10-03 22:19:52 +00:00
|
|
|
else
|
2012-07-15 20:58:13 +00:00
|
|
|
s->geotags[i].offset = tget_short(&s->gb, s->le);
|
2011-10-03 22:19:52 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case TIFF_GEO_DOUBLE_PARAMS:
|
2012-07-16 00:31:11 +00:00
|
|
|
if (count >= INT_MAX / sizeof(int64_t))
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
if (bytestream2_get_bytes_left(&s->gb) < count * sizeof(int64_t))
|
|
|
|
return AVERROR_INVALIDDATA;
|
2011-10-03 22:19:52 +00:00
|
|
|
dp = av_malloc(count * sizeof(double));
|
|
|
|
if (!dp) {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
}
|
|
|
|
for (i = 0; i < count; i++)
|
2012-07-15 20:58:13 +00:00
|
|
|
dp[i] = tget_double(&s->gb, s->le);
|
2011-10-03 22:19:52 +00:00
|
|
|
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 {
|
|
|
|
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:
|
2012-07-15 20:58:13 +00:00
|
|
|
pos = bytestream2_tell(&s->gb);
|
2011-10-03 22:19:52 +00:00
|
|
|
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 {
|
2012-07-16 00:31:11 +00:00
|
|
|
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 -1;
|
|
|
|
ap = av_malloc(s->geotags[i].count);
|
2011-10-03 22:19:52 +00:00
|
|
|
if (!ap) {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
}
|
2012-07-16 00:31:11 +00:00
|
|
|
bytestream2_get_bufferu(&s->gb, ap, s->geotags[i].count);
|
2011-10-03 22:19:52 +00:00
|
|
|
ap[s->geotags[i].count - 1] = '\0'; //replace the "|" delimiter with a 0 byte
|
|
|
|
s->geotags[i].val = ap;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
2012-07-16 00:55:18 +00:00
|
|
|
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", " / ");
|
|
|
|
break;
|
|
|
|
case TIFF_SOFTWARE_NAME:
|
|
|
|
ADD_METADATA(count, "software", NULL);
|
|
|
|
break;
|
2011-05-09 19:26:39 +00:00
|
|
|
default:
|
2012-04-13 01:28:37 +00:00
|
|
|
av_log(s->avctx, AV_LOG_DEBUG, "Unknown or unsupported tag %d/0X%0X\n",
|
|
|
|
tag, tag);
|
2006-10-13 10:48:29 +00:00
|
|
|
}
|
2012-07-15 20:58:13 +00:00
|
|
|
bytestream2_seek(&s->gb, start, SEEK_SET);
|
2006-10-13 10:48:29 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int decode_frame(AVCodecContext *avctx,
|
2012-04-13 01:28:37 +00:00
|
|
|
void *data, int *data_size, AVPacket *avpkt)
|
2006-10-13 10:48:29 +00:00
|
|
|
{
|
2012-04-13 01:28:37 +00:00
|
|
|
TiffContext *const s = avctx->priv_data;
|
2006-10-13 10:48:29 +00:00
|
|
|
AVFrame *picture = data;
|
2012-04-13 01:28:37 +00:00
|
|
|
AVFrame *const p = &s->picture;
|
2011-09-30 22:45:03 +00:00
|
|
|
unsigned off;
|
|
|
|
int id, le, ret;
|
2008-12-22 06:50:18 +00:00
|
|
|
int i, j, entries;
|
2011-09-30 22:45:03 +00:00
|
|
|
int stride;
|
|
|
|
unsigned soff, ssize;
|
2008-12-22 06:50:18 +00:00
|
|
|
uint8_t *dst;
|
2012-07-15 20:58:13 +00:00
|
|
|
GetByteContext stripsizes;
|
|
|
|
GetByteContext stripdata;
|
|
|
|
|
|
|
|
bytestream2_init(&s->gb, avpkt->data, avpkt->size);
|
2006-10-13 10:48:29 +00:00
|
|
|
|
|
|
|
//parse image header
|
2012-07-15 20:58:13 +00:00
|
|
|
if (avpkt->size < 8)
|
2011-09-30 22:45:03 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2012-07-16 00:31:11 +00:00
|
|
|
id = bytestream2_get_le16u(&s->gb);
|
2012-04-13 01:28:37 +00:00
|
|
|
if (id == 0x4949)
|
|
|
|
le = 1;
|
|
|
|
else if (id == 0x4D4D)
|
|
|
|
le = 0;
|
|
|
|
else {
|
2006-10-13 10:48:29 +00:00
|
|
|
av_log(avctx, AV_LOG_ERROR, "TIFF header not found\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
s->le = le;
|
2006-11-13 05:32:10 +00:00
|
|
|
s->invert = 0;
|
2007-12-01 15:41:35 +00:00
|
|
|
s->compr = TIFF_RAW;
|
2009-09-24 18:30:28 +00:00
|
|
|
s->fill_order = 0;
|
2011-10-03 22:19:52 +00:00
|
|
|
free_geotags(s);
|
|
|
|
/* free existing metadata */
|
|
|
|
av_dict_free(&s->picture.metadata);
|
|
|
|
|
2006-10-13 10:48:29 +00:00
|
|
|
// As TIFF 6.0 specification puts it "An arbitrary but carefully chosen number
|
|
|
|
// that further identifies the file as a TIFF file"
|
2012-07-15 20:58:13 +00:00
|
|
|
if (tget_short(&s->gb, le) != 42) {
|
2012-04-13 01:28:37 +00:00
|
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
|
|
"The answer to life, universe and everything is not correct!\n");
|
2006-10-13 10:48:29 +00:00
|
|
|
return -1;
|
|
|
|
}
|
2012-07-15 20:58:13 +00:00
|
|
|
// Reset these offsets so we can tell if they were set this frame
|
|
|
|
s->stripsizesoff = s->strippos = 0;
|
2006-10-13 10:48:29 +00:00
|
|
|
/* parse image file directory */
|
2012-07-15 20:58:13 +00:00
|
|
|
off = tget_long(&s->gb, le);
|
|
|
|
if (off >= UINT_MAX - 14 || avpkt->size < off + 14) {
|
2006-10-13 10:48:29 +00:00
|
|
|
av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
|
2011-09-30 22:45:03 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2006-10-13 10:48:29 +00:00
|
|
|
}
|
2012-07-15 20:58:13 +00:00
|
|
|
bytestream2_seek(&s->gb, off, SEEK_SET);
|
|
|
|
entries = tget_short(&s->gb, le);
|
2012-07-16 00:31:11 +00:00
|
|
|
if (bytestream2_get_bytes_left(&s->gb) < entries * 12)
|
|
|
|
return AVERROR_INVALIDDATA;
|
2012-04-13 01:28:37 +00:00
|
|
|
for (i = 0; i < entries; i++) {
|
2012-07-15 20:58:13 +00:00
|
|
|
if (tiff_decode_tag(s) < 0)
|
2006-10-13 10:48:29 +00:00
|
|
|
return -1;
|
|
|
|
}
|
2011-10-03 22:19:52 +00:00
|
|
|
|
|
|
|
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(&s->picture.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;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-07-15 20:58:13 +00:00
|
|
|
if (!s->strippos && !s->stripoff) {
|
2008-12-22 06:50:18 +00:00
|
|
|
av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
/* now we have the data and may start decoding */
|
2011-05-09 10:51:24 +00:00
|
|
|
if ((ret = init_image(s)) < 0)
|
|
|
|
return ret;
|
|
|
|
|
2012-04-13 01:28:37 +00:00
|
|
|
if (s->strips == 1 && !s->stripsize) {
|
2008-12-22 06:50:18 +00:00
|
|
|
av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
|
2012-07-15 20:58:13 +00:00
|
|
|
s->stripsize = avpkt->size - s->stripoff;
|
2008-12-22 06:50:18 +00:00
|
|
|
}
|
|
|
|
stride = p->linesize[0];
|
|
|
|
dst = p->data[0];
|
2012-07-15 20:58:13 +00:00
|
|
|
|
|
|
|
if (s->stripsizesoff) {
|
|
|
|
if (s->stripsizesoff >= avpkt->size)
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
bytestream2_init(&stripsizes, avpkt->data + s->stripsizesoff, avpkt->size - s->stripsizesoff);
|
|
|
|
}
|
|
|
|
if (s->strippos) {
|
|
|
|
if (s->strippos >= avpkt->size)
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
bytestream2_init(&stripdata, avpkt->data + s->strippos, avpkt->size - s->strippos);
|
|
|
|
}
|
|
|
|
|
2012-04-13 01:28:37 +00:00
|
|
|
for (i = 0; i < s->height; i += s->rps) {
|
2012-07-15 20:58:13 +00:00
|
|
|
if (s->stripsizesoff)
|
|
|
|
ssize = tget(&stripsizes, s->sstype, s->le);
|
|
|
|
else
|
2008-12-22 06:50:18 +00:00
|
|
|
ssize = s->stripsize;
|
|
|
|
|
2012-07-15 20:58:13 +00:00
|
|
|
if (s->strippos)
|
|
|
|
soff = tget(&stripdata, s->sot, s->le);
|
|
|
|
else
|
2008-12-22 06:50:18 +00:00
|
|
|
soff = s->stripoff;
|
2011-09-30 22:45:03 +00:00
|
|
|
|
2012-07-15 20:58:13 +00:00
|
|
|
if (soff > avpkt->size || ssize > avpkt->size - soff) {
|
2011-09-30 22:45:03 +00:00
|
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid strip size/offset\n");
|
|
|
|
return -1;
|
2011-01-09 19:29:39 +00:00
|
|
|
}
|
2012-07-15 20:58:13 +00:00
|
|
|
if (tiff_unpack_strip(s, dst, stride, avpkt->data + soff, ssize,
|
2012-04-13 01:28:37 +00:00
|
|
|
FFMIN(s->rps, s->height - i)) < 0)
|
2008-12-22 06:50:18 +00:00
|
|
|
break;
|
|
|
|
dst += s->rps * stride;
|
|
|
|
}
|
2012-04-13 01:28:37 +00:00
|
|
|
if (s->predictor == 2) {
|
2008-12-22 06:50:18 +00:00
|
|
|
dst = p->data[0];
|
|
|
|
soff = s->bpp >> 3;
|
|
|
|
ssize = s->width * soff;
|
2012-01-14 00:10:13 +00:00
|
|
|
if (s->avctx->pix_fmt == PIX_FMT_RGB48LE ||
|
|
|
|
s->avctx->pix_fmt == PIX_FMT_RGBA64LE) {
|
2011-09-25 14:00:04 +00:00
|
|
|
for (i = 0; i < s->height; i++) {
|
|
|
|
for (j = soff; j < ssize; j += 2)
|
|
|
|
AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
|
|
|
|
dst += stride;
|
|
|
|
}
|
2012-01-14 00:10:13 +00:00
|
|
|
} else if (s->avctx->pix_fmt == PIX_FMT_RGB48BE ||
|
|
|
|
s->avctx->pix_fmt == PIX_FMT_RGBA64BE) {
|
2011-09-25 14:00:04 +00:00
|
|
|
for (i = 0; i < s->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 {
|
2012-04-14 19:49:01 +00:00
|
|
|
for (i = 0; i < s->height; i++) {
|
|
|
|
for (j = soff; j < ssize; j++)
|
2011-09-23 06:22:31 +00:00
|
|
|
dst[j] += dst[j - soff];
|
|
|
|
dst += stride;
|
|
|
|
}
|
2011-09-25 14:00:04 +00:00
|
|
|
}
|
2008-12-22 06:50:18 +00:00
|
|
|
}
|
2006-10-13 10:48:29 +00:00
|
|
|
|
2012-04-13 01:28:37 +00:00
|
|
|
if (s->invert) {
|
2011-09-23 06:22:31 +00:00
|
|
|
dst = s->picture.data[0];
|
2012-04-14 19:49:01 +00:00
|
|
|
for (i = 0; i < s->height; i++) {
|
|
|
|
for (j = 0; j < s->picture.linesize[0]; j++)
|
2011-09-23 06:22:31 +00:00
|
|
|
dst[j] = (s->avctx->pix_fmt == PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255) - dst[j];
|
|
|
|
dst += s->picture.linesize[0];
|
2006-11-13 05:32:10 +00:00
|
|
|
}
|
|
|
|
}
|
2012-02-27 21:08:41 +00:00
|
|
|
*picture = s->picture;
|
2006-10-13 10:48:29 +00:00
|
|
|
*data_size = sizeof(AVPicture);
|
|
|
|
|
2012-07-15 20:58:13 +00:00
|
|
|
return avpkt->size;
|
2006-10-13 10:48:29 +00:00
|
|
|
}
|
|
|
|
|
2012-04-13 01:28:37 +00:00
|
|
|
static av_cold int tiff_init(AVCodecContext *avctx)
|
|
|
|
{
|
2006-10-13 10:48:29 +00:00
|
|
|
TiffContext *s = avctx->priv_data;
|
|
|
|
|
|
|
|
s->width = 0;
|
|
|
|
s->height = 0;
|
|
|
|
s->avctx = avctx;
|
2012-02-27 07:51:20 +00:00
|
|
|
avcodec_get_frame_defaults(&s->picture);
|
|
|
|
avctx->coded_frame = &s->picture;
|
2006-10-26 04:15:48 +00:00
|
|
|
ff_lzw_decode_open(&s->lzw);
|
2008-12-26 18:42:26 +00:00
|
|
|
ff_ccitt_unpack_init();
|
2006-10-13 10:48:29 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-03-21 03:11:20 +00:00
|
|
|
static av_cold int tiff_end(AVCodecContext *avctx)
|
2006-10-13 10:48:29 +00:00
|
|
|
{
|
2012-04-13 01:28:37 +00:00
|
|
|
TiffContext *const s = avctx->priv_data;
|
2006-10-13 10:48:29 +00:00
|
|
|
|
2011-10-03 22:19:52 +00:00
|
|
|
free_geotags(s);
|
|
|
|
if (avctx->coded_frame && avctx->coded_frame->metadata)
|
|
|
|
av_dict_free(&avctx->coded_frame->metadata);
|
|
|
|
|
2006-10-26 04:15:48 +00:00
|
|
|
ff_lzw_decode_close(&s->lzw);
|
2012-04-13 01:28:37 +00:00
|
|
|
if (s->picture.data[0])
|
2006-10-13 10:48:29 +00:00
|
|
|
avctx->release_buffer(avctx, &s->picture);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-01-25 21:40:11 +00:00
|
|
|
AVCodec ff_tiff_decoder = {
|
2011-07-17 10:54:31 +00:00
|
|
|
.name = "tiff",
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
|
|
.id = CODEC_ID_TIFF,
|
|
|
|
.priv_data_size = sizeof(TiffContext),
|
|
|
|
.init = tiff_init,
|
|
|
|
.close = tiff_end,
|
|
|
|
.decode = decode_frame,
|
|
|
|
.capabilities = CODEC_CAP_DR1,
|
2012-04-06 16:19:39 +00:00
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
|
2006-10-13 10:48:29 +00:00
|
|
|
};
|