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Data Structures | Macros | Functions | Variables
tiff.c File Reference
#include "config.h"
#include <float.h>
#include "libavutil/attributes.h"
#include "libavutil/error.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "libavutil/reverse.h"
#include "avcodec.h"
#include "bytestream.h"
#include "codec_internal.h"
#include "decode.h"
#include "faxcompr.h"
#include "lzw.h"
#include "tiff.h"
#include "tiff_data.h"
#include "mjpegdec.h"
#include "thread.h"
#include "get_bits.h"

Go to the source code of this file.

Data Structures

struct  TiffContext
 

Macros

#define RET_GEOKEY(TYPE, array, element)
 
#define RET_GEOKEY_VAL(TYPE, array)
 
#define ADD_METADATA(count, name, sep)
 
#define OFFSET(x)   offsetof(TiffContext, x)
 

Functions

static void tiff_set_type (TiffContext *s, enum TiffType tiff_type)
 
static void free_geotags (TiffContext *const s)
 
static const char * get_geokey_name (int key)
 
static int get_geokey_type (int key)
 
static int cmp_id_key (const void *id, const void *k)
 
static const char * search_keyval (const TiffGeoTagKeyName *keys, int n, int id)
 
static char * get_geokey_val (int key, int val)
 
static char * doubles2str (double *dp, int count, const char *sep)
 
static int add_metadata (int count, int type, const char *name, const char *sep, TiffContext *s, AVFrame *frame)
 
static uint16_t av_always_inline dng_process_color16 (uint16_t value, const uint16_t *lut, float black_level, float scale_factor)
 Map stored raw sensor values into linear reference values (see: DNG Specification - Chapter 5) More...
 
static uint16_t av_always_inline dng_process_color8 (uint16_t value, const uint16_t *lut, float black_level, float scale_factor)
 
static void av_always_inline dng_blit (TiffContext *s, uint8_t *dst, int dst_stride, const uint8_t *src, int src_stride, int width, int height, int is_single_comp, int is_u16, int odd_line)
 
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)
 
static int deinvert_buffer (TiffContext *s, const uint8_t *src, int size)
 
static void unpack_gray (TiffContext *s, AVFrame *p, const uint8_t *src, int lnum, int width, int bpp)
 
static void unpack_yuv (TiffContext *s, AVFrame *p, const uint8_t *src, int lnum)
 
static int tiff_unpack_fax (TiffContext *s, uint8_t *dst, int stride, const uint8_t *src, int size, int width, int lines)
 
static int dng_decode_jpeg (AVCodecContext *avctx, AVFrame *frame, int tile_byte_count, int dst_x, int dst_y, int w, int h)
 
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)
 
static int dng_decode_tiles (AVCodecContext *avctx, AVFrame *frame, const AVPacket *avpkt)
 
static int init_image (TiffContext *s, AVFrame *frame)
 
static void set_sar (TiffContext *s, unsigned tag, unsigned num, unsigned den)
 
static int tiff_decode_tag (TiffContext *s, AVFrame *frame)
 
static void camera_xyz_coeff (TiffContext *s, float rgb2cam[3][4], double cam2xyz[4][3])
 
static int decode_frame (AVCodecContext *avctx, AVFrame *p, int *got_frame, AVPacket *avpkt)
 
static av_cold int tiff_init (AVCodecContext *avctx)
 
static av_cold int tiff_end (AVCodecContext *avctx)
 

Variables

static const float d65_white [3] = { 0.950456f, 1.f, 1.088754f }
 
static const float xyz2rgb [3][3]
 
static const AVOption tiff_options []
 
static const AVClass tiff_decoder_class
 
const FFCodec ff_tiff_decoder
 

Detailed Description

TIFF image decoder

Author
Konstantin Shishkov

Definition in file tiff.c.

Macro Definition Documentation

◆ RET_GEOKEY

#define RET_GEOKEY (   TYPE,
  array,
  element 
)
Value:
if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\
key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(tiff_##array##_name_type_map))\
return tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].element;

Definition at line 143 of file tiff.c.

◆ RET_GEOKEY_VAL

#define RET_GEOKEY_VAL (   TYPE,
  array 
)
Value:
if (val >= TIFF_##TYPE##_OFFSET &&\
val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(tiff_##array##_codes))\
return av_strdup(tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET]);

◆ ADD_METADATA

#define ADD_METADATA (   count,
  name,
  sep 
)
Value:
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;\
}

◆ OFFSET

#define OFFSET (   x)    offsetof(TiffContext, x)

Definition at line 2447 of file tiff.c.

Function Documentation

◆ tiff_set_type()

static void tiff_set_type ( TiffContext *  s,
enum TiffType  tiff_type 
)
static

Definition at line 127 of file tiff.c.

Referenced by tiff_decode_tag().

◆ free_geotags()

static void free_geotags ( TiffContext *const  s)
static

Definition at line 132 of file tiff.c.

Referenced by decode_frame(), and tiff_end().

◆ get_geokey_name()

static const char* get_geokey_name ( int  key)
static

Definition at line 148 of file tiff.c.

Referenced by decode_frame().

◆ get_geokey_type()

static int get_geokey_type ( int  key)
static

Definition at line 158 of file tiff.c.

Referenced by decode_frame().

◆ cmp_id_key()

static int cmp_id_key ( const void *  id,
const void *  k 
)
static

Definition at line 168 of file tiff.c.

Referenced by search_keyval().

◆ search_keyval()

static const char* search_keyval ( const TiffGeoTagKeyName *  keys,
int  n,
int  id 
)
static

Definition at line 173 of file tiff.c.

Referenced by get_geokey_val().

◆ get_geokey_val()

static char* get_geokey_val ( int  key,
int  val 
)
static

Definition at line 182 of file tiff.c.

Referenced by tiff_decode_tag().

◆ doubles2str()

static char* doubles2str ( double *  dp,
int  count,
const char *  sep 
)
static

Definition at line 250 of file tiff.c.

Referenced by tiff_decode_tag().

◆ add_metadata()

static int add_metadata ( int  count,
int  type,
const char *  name,
const char *  sep,
TiffContext *  s,
AVFrame *  frame 
)
static

Definition at line 276 of file tiff.c.

◆ dng_process_color16()

static uint16_t av_always_inline dng_process_color16 ( uint16_t  value,
const uint16_t *  lut,
float  black_level,
float  scale_factor 
)
static

Map stored raw sensor values into linear reference values (see: DNG Specification - Chapter 5)

Definition at line 290 of file tiff.c.

Referenced by dng_blit(), and dng_process_color8().

◆ dng_process_color8()

static uint16_t av_always_inline dng_process_color8 ( uint16_t  value,
const uint16_t *  lut,
float  black_level,
float  scale_factor 
)
static

Definition at line 309 of file tiff.c.

Referenced by dng_blit().

◆ dng_blit()

static void av_always_inline dng_blit ( TiffContext *  s,
uint8_t *  dst,
int  dst_stride,
const uint8_t *  src,
int  src_stride,
int  width,
int  height,
int  is_single_comp,
int  is_u16,
int  odd_line 
)
static

Definition at line 317 of file tiff.c.

Referenced by dng_decode_jpeg(), and tiff_unpack_strip().

◆ horizontal_fill()

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 
)
static

Definition at line 390 of file tiff.c.

Referenced by tiff_unpack_fax(), and tiff_unpack_strip().

◆ deinvert_buffer()

static int deinvert_buffer ( TiffContext *  s,
const uint8_t *  src,
int  size 
)
static

Definition at line 445 of file tiff.c.

Referenced by tiff_unpack_fax(), and tiff_unpack_strip().

◆ unpack_gray()

static void unpack_gray ( TiffContext *  s,
AVFrame *  p,
const uint8_t *  src,
int  lnum,
int  width,
int  bpp 
)
static

Definition at line 458 of file tiff.c.

Referenced by tiff_unpack_strip().

◆ unpack_yuv()

static void unpack_yuv ( TiffContext *  s,
AVFrame *  p,
const uint8_t *  src,
int  lnum 
)
static

Definition at line 471 of file tiff.c.

Referenced by tiff_unpack_strip().

◆ tiff_unpack_fax()

static int tiff_unpack_fax ( TiffContext *  s,
uint8_t *  dst,
int  stride,
const uint8_t *  src,
int  size,
int  width,
int  lines 
)
static

Definition at line 631 of file tiff.c.

Referenced by tiff_unpack_strip().

◆ dng_decode_jpeg()

static int dng_decode_jpeg ( AVCodecContext *  avctx,
AVFrame *  frame,
int  tile_byte_count,
int  dst_x,
int  dst_y,
int  w,
int  h 
)
static

Definition at line 652 of file tiff.c.

Referenced by dng_decode_tiles(), and tiff_unpack_strip().

◆ tiff_unpack_strip()

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 
)
static

Definition at line 742 of file tiff.c.

Referenced by decode_frame().

◆ dng_decode_tiles()

static int dng_decode_tiles ( AVCodecContext *  avctx,
AVFrame *  frame,
const AVPacket *  avpkt 
)
static

Definition at line 971 of file tiff.c.

Referenced by decode_frame().

◆ init_image()

static int init_image ( TiffContext *  s,
AVFrame *  frame 
)
static

Definition at line 1044 of file tiff.c.

Referenced by decode_frame().

◆ set_sar()

static void set_sar ( TiffContext *  s,
unsigned  tag,
unsigned  num,
unsigned  den 
)
static

Definition at line 1233 of file tiff.c.

Referenced by tiff_decode_tag().

◆ tiff_decode_tag()

static int tiff_decode_tag ( TiffContext *  s,
AVFrame *  frame 
)
static

Only get the first SubIFD

Definition at line 1252 of file tiff.c.

Referenced by decode_frame().

◆ camera_xyz_coeff()

static void camera_xyz_coeff ( TiffContext *  s,
float  rgb2cam[3][4],
double  cam2xyz[4][3] 
)
static

Definition at line 1879 of file tiff.c.

Referenced by decode_frame().

◆ decode_frame()

static int decode_frame ( AVCodecContext *  avctx,
AVFrame *  p,
int *  got_frame,
AVPacket *  avpkt 
)
static

whether we should process this IFD's SubIFD

whether we should process this multi-page IFD's next page

Definition at line 1905 of file tiff.c.

◆ tiff_init()

static av_cold int tiff_init ( AVCodecContext *  avctx)
static

Definition at line 2388 of file tiff.c.

◆ tiff_end()

static av_cold int tiff_end ( AVCodecContext *  avctx)
static

Definition at line 2430 of file tiff.c.

Variable Documentation

◆ d65_white

const float d65_white[3] = { 0.950456f, 1.f, 1.088754f }
static

Definition at line 125 of file tiff.c.

Referenced by tiff_decode_tag().

◆ xyz2rgb

const float xyz2rgb[3][3]
static
Initial value:
= {
{ 0.412453f, 0.357580f, 0.180423f },
{ 0.212671f, 0.715160f, 0.072169f },
{ 0.019334f, 0.119193f, 0.950227f },
}

Definition at line 1873 of file tiff.c.

Referenced by camera_xyz_coeff(), create_filtergraph(), and get_rgb2rgb_matrix().

◆ tiff_options

const AVOption tiff_options[]
static
Initial value:
= {
{ "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 },
}

Definition at line 2448 of file tiff.c.

◆ tiff_decoder_class

const AVClass tiff_decoder_class
static
Initial value:
= {
.class_name = "TIFF decoder",
.item_name = av_default_item_name,
.option = tiff_options,
.version = LIBAVUTIL_VERSION_INT,
}

Definition at line 2455 of file tiff.c.

◆ ff_tiff_decoder

const FFCodec ff_tiff_decoder
Initial value:
= {
.p.name = "tiff",
CODEC_LONG_NAME("TIFF image"),
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_TIFF,
.priv_data_size = sizeof(TiffContext),
.init = tiff_init,
.close = tiff_end,
FF_CODEC_DECODE_CB(decode_frame),
.p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
.caps_internal = FF_CODEC_CAP_INIT_CLEANUP | FF_CODEC_CAP_ICC_PROFILES |
FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
.p.priv_class = &tiff_decoder_class,
}

Definition at line 2462 of file tiff.c.

name
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default minimum maximum flags name is the option name
Definition: writing_filters.txt:88
FF_CODEC_CAP_INIT_CLEANUP
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: codec_internal.h:42
AV_OPT_FLAG_VIDEO_PARAM
#define AV_OPT_FLAG_VIDEO_PARAM
Definition: opt.h:284
OFFSET
#define OFFSET(x)
Definition: tiff.c:2447
tiff_end
static av_cold int tiff_end(AVCodecContext *avctx)
Definition: tiff.c:2430
tiff_options
static const AVOption tiff_options[]
Definition: tiff.c:2448
val
static double val(void *priv, double ch)
Definition: aeval.c:78
type
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
Definition: writing_filters.txt:86
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen.c:29
FF_CODEC_DECODE_CB
#define FF_CODEC_DECODE_CB(func)
Definition: codec_internal.h:306
s
#define s(width, name)
Definition: cbs_vp9.c:198
init
int(* init)(AVBSFContext *ctx)
Definition: dts2pts_bsf.c:365
key
const char * key
Definition: hwcontext_opencl.c:174
CODEC_LONG_NAME
#define CODEC_LONG_NAME(str)
Definition: codec_internal.h:272
frame
static AVFrame * frame
Definition: demux_decode.c:54
AV_CODEC_CAP_FRAME_THREADS
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: codec.h:110
TYPE
#define TYPE
Definition: ffv1dec.c:116
tiff_init
static av_cold int tiff_init(AVCodecContext *avctx)
Definition: tiff.c:2388
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
NULL
#define NULL
Definition: coverity.c:32
TiffContext
Definition: tiff.c:55
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:237
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:52
FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM
#define FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM
The decoder extracts and fills its parameters even if the frame is skipped due to the skip_frame sett...
Definition: codec_internal.h:54
tiff_decoder_class
static const AVClass tiff_decoder_class
Definition: tiff.c:2455
decode_frame
static int decode_frame(AVCodecContext *avctx, AVFrame *p, int *got_frame, AVPacket *avpkt)
Definition: tiff.c:1905
AV_OPT_FLAG_DECODING_PARAM
#define AV_OPT_FLAG_DECODING_PARAM
a generic parameter which can be set by the user for demuxing or decoding
Definition: opt.h:282
FF_CODEC_CAP_ICC_PROFILES
#define FF_CODEC_CAP_ICC_PROFILES
Codec supports embedded ICC profiles (AV_FRAME_DATA_ICC_PROFILE).
Definition: codec_internal.h:82
array
static int array[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:111
ret
ret
Definition: filter_design.txt:187
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
av_strdup
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:270
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:244
add_metadata
static int add_metadata(int count, int type, const char *name, const char *sep, TiffContext *s, AVFrame *frame)
Definition: tiff.c:276
AV_CODEC_ID_TIFF
@ AV_CODEC_ID_TIFF
Definition: codec_id.h:148
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