FFmpeg  4.0
Data Structures | Macros | Typedefs | Enumerations | Functions
dirac_dwt.h File Reference
#include <stdint.h>

Go to the source code of this file.

Data Structures

struct  DWTCompose
 
struct  DWTPlane
 
struct  DWTContext
 

Macros

#define MAX_DWT_SUPPORT   8
 
#define MAX_DECOMPOSITIONS   8
 
#define COMPOSE_53iL0(b0, b1, b2)   (b1 - (unsigned)((int)(b0 + (unsigned)(b2) + 2) >> 2))
 
#define COMPOSE_DIRAC53iH0(b0, b1, b2)   (b1 + (unsigned)((int)(b0 + (unsigned)(b2) + 1) >> 1))
 
#define COMPOSE_DD97iH0(b0, b1, b2, b3, b4)   (int)(((unsigned)(b2) + ((int)(-b0 + 9U*b1 + 9U*b3 - b4 + 8) >> 4)))
 
#define COMPOSE_DD137iL0(b0, b1, b2, b3, b4)   (int)(((unsigned)(b2) - ((int)(-b0 + 9U*b1 + 9U*b3 - b4 + 16) >> 5)))
 
#define COMPOSE_HAARiL0(b0, b1)   ((int)(b0 - (unsigned)((int)(b1 + 1U) >> 1)))
 
#define COMPOSE_HAARiH0(b0, b1)   ((int)(b0 + (unsigned)(b1)))
 
#define COMPOSE_FIDELITYiL0(b0, b1, b2, b3, b4, b5, b6, b7, b8)   ((unsigned)b4 - ((int)(-8*(b0+(unsigned)b8) + 21*(b1+(unsigned)b7) - 46*(b2+(unsigned)b6) + 161*(b3+(unsigned)b5) + 128) >> 8))
 
#define COMPOSE_FIDELITYiH0(b0, b1, b2, b3, b4, b5, b6, b7, b8)   ((unsigned)b4 + ((int)(-2*(b0+(unsigned)b8) + 10*(b1+(unsigned)b7) - 25*(b2+(unsigned)b6) + 81*(b3+(unsigned)b5) + 128) >> 8))
 
#define COMPOSE_DAUB97iL1(b0, b1, b2)   ((unsigned)(b1) - ((int)(1817*(b0 + (unsigned)b2) + 2048) >> 12))
 
#define COMPOSE_DAUB97iH1(b0, b1, b2)   ((unsigned)(b1) - ((int)( 113*(b0 + (unsigned)b2) + 64) >> 7))
 
#define COMPOSE_DAUB97iL0(b0, b1, b2)   ((unsigned)(b1) + ((int)( 217*(b0 + (unsigned)b2) + 2048) >> 12))
 
#define COMPOSE_DAUB97iH0(b0, b1, b2)   ((unsigned)(b1) + ((int)(6497*(b0 + (unsigned)b2) + 2048) >> 12))
 

Typedefs

typedef int DWTELEM
 
typedef short IDWTELEM
 
typedef void(* vertical_compose_2tap) (uint8_t *b0, uint8_t *b1, int width)
 
typedef void(* vertical_compose_3tap) (uint8_t *b0, uint8_t *b1, uint8_t *b2, int width)
 
typedef void(* vertical_compose_5tap) (uint8_t *b0, uint8_t *b1, uint8_t *b2, uint8_t *b3, uint8_t *b4, int width)
 
typedef void(* vertical_compose_9tap) (uint8_t *dst, uint8_t *b[8], int width)
 

Enumerations

enum  dwt_type {
  DWT_SNOW_DAUB9_7, DWT_SNOW_LEGALL5_3, DWT_DIRAC_DD9_7, DWT_DIRAC_LEGALL5_3,
  DWT_DIRAC_DD13_7, DWT_DIRAC_HAAR0, DWT_DIRAC_HAAR1, DWT_DIRAC_FIDELITY,
  DWT_DIRAC_DAUB9_7, DWT_NUM_TYPES
}
 

Functions

int ff_spatial_idwt_init (DWTContext *d, DWTPlane *p, enum dwt_type type, int decomposition_count, int bit_depth)
 
void ff_spatial_idwt_init_x86 (DWTContext *d, enum dwt_type type)
 
void ff_spatial_idwt_slice2 (DWTContext *d, int y)
 

Macro Definition Documentation

◆ MAX_DWT_SUPPORT

#define MAX_DWT_SUPPORT   8

Definition at line 29 of file dirac_dwt.h.

◆ MAX_DECOMPOSITIONS

#define MAX_DECOMPOSITIONS   8

Definition at line 30 of file dirac_dwt.h.

Referenced by decode_frame(), decode_header(), ff_snow_common_end(), ff_snow_reset_contexts(), and ff_spatial_idwt().

◆ COMPOSE_53iL0

#define COMPOSE_53iL0 (   b0,
  b1,
  b2 
)    (b1 - (unsigned)((int)(b0 + (unsigned)(b2) + 2) >> 2))

Definition at line 95 of file dirac_dwt.h.

Referenced by horizontal_compose_dd97i(), and horizontal_compose_dirac53i().

◆ COMPOSE_DIRAC53iH0

#define COMPOSE_DIRAC53iH0 (   b0,
  b1,
  b2 
)    (b1 + (unsigned)((int)(b0 + (unsigned)(b2) + 1) >> 1))

Definition at line 98 of file dirac_dwt.h.

Referenced by horizontal_compose_dirac53i(), and vertical_compose_dirac53iH0().

◆ COMPOSE_DD97iH0

#define COMPOSE_DD97iH0 (   b0,
  b1,
  b2,
  b3,
  b4 
)    (int)(((unsigned)(b2) + ((int)(-b0 + 9U*b1 + 9U*b3 - b4 + 8) >> 4)))

Definition at line 101 of file dirac_dwt.h.

Referenced by horizontal_compose_dd137i(), horizontal_compose_dd97i(), and vertical_compose_dd97iH0().

◆ COMPOSE_DD137iL0

#define COMPOSE_DD137iL0 (   b0,
  b1,
  b2,
  b3,
  b4 
)    (int)(((unsigned)(b2) - ((int)(-b0 + 9U*b1 + 9U*b3 - b4 + 16) >> 5)))

Definition at line 104 of file dirac_dwt.h.

Referenced by horizontal_compose_dd137i(), and vertical_compose_dd137iL0().

◆ COMPOSE_HAARiL0

#define COMPOSE_HAARiL0 (   b0,
  b1 
)    ((int)(b0 - (unsigned)((int)(b1 + 1U) >> 1)))

Definition at line 107 of file dirac_dwt.h.

Referenced by horizontal_compose_haari(), and vertical_compose_haar().

◆ COMPOSE_HAARiH0

#define COMPOSE_HAARiH0 (   b0,
  b1 
)    ((int)(b0 + (unsigned)(b1)))

Definition at line 110 of file dirac_dwt.h.

Referenced by horizontal_compose_haari(), and vertical_compose_haar().

◆ COMPOSE_FIDELITYiL0

#define COMPOSE_FIDELITYiL0 (   b0,
  b1,
  b2,
  b3,
  b4,
  b5,
  b6,
  b7,
  b8 
)    ((unsigned)b4 - ((int)(-8*(b0+(unsigned)b8) + 21*(b1+(unsigned)b7) - 46*(b2+(unsigned)b6) + 161*(b3+(unsigned)b5) + 128) >> 8))

Definition at line 113 of file dirac_dwt.h.

Referenced by horizontal_compose_fidelityi(), and vertical_compose_fidelityiL0().

◆ COMPOSE_FIDELITYiH0

#define COMPOSE_FIDELITYiH0 (   b0,
  b1,
  b2,
  b3,
  b4,
  b5,
  b6,
  b7,
  b8 
)    ((unsigned)b4 + ((int)(-2*(b0+(unsigned)b8) + 10*(b1+(unsigned)b7) - 25*(b2+(unsigned)b6) + 81*(b3+(unsigned)b5) + 128) >> 8))

Definition at line 116 of file dirac_dwt.h.

Referenced by horizontal_compose_fidelityi(), and vertical_compose_fidelityiH0().

◆ COMPOSE_DAUB97iL1

#define COMPOSE_DAUB97iL1 (   b0,
  b1,
  b2 
)    ((unsigned)(b1) - ((int)(1817*(b0 + (unsigned)b2) + 2048) >> 12))

Definition at line 119 of file dirac_dwt.h.

Referenced by horizontal_compose_daub97i(), and vertical_compose_daub97iL1().

◆ COMPOSE_DAUB97iH1

#define COMPOSE_DAUB97iH1 (   b0,
  b1,
  b2 
)    ((unsigned)(b1) - ((int)( 113*(b0 + (unsigned)b2) + 64) >> 7))

Definition at line 122 of file dirac_dwt.h.

Referenced by horizontal_compose_daub97i(), and vertical_compose_daub97iH1().

◆ COMPOSE_DAUB97iL0

#define COMPOSE_DAUB97iL0 (   b0,
  b1,
  b2 
)    ((unsigned)(b1) + ((int)( 217*(b0 + (unsigned)b2) + 2048) >> 12))

Definition at line 125 of file dirac_dwt.h.

Referenced by horizontal_compose_daub97i(), and vertical_compose_daub97iL0().

◆ COMPOSE_DAUB97iH0

#define COMPOSE_DAUB97iH0 (   b0,
  b1,
  b2 
)    ((unsigned)(b1) + ((int)(6497*(b0 + (unsigned)b2) + 2048) >> 12))

Definition at line 128 of file dirac_dwt.h.

Referenced by horizontal_compose_daub97i(), and vertical_compose_daub97iH0().

Typedef Documentation

◆ DWTELEM

typedef int DWTELEM

Definition at line 26 of file dirac_dwt.h.

◆ IDWTELEM

typedef short IDWTELEM

Definition at line 27 of file dirac_dwt.h.

◆ vertical_compose_2tap

typedef void(* vertical_compose_2tap) (uint8_t *b0, uint8_t *b1, int width)

Definition at line 49 of file dirac_dwt.h.

◆ vertical_compose_3tap

typedef void(* vertical_compose_3tap) (uint8_t *b0, uint8_t *b1, uint8_t *b2, int width)

Definition at line 50 of file dirac_dwt.h.

◆ vertical_compose_5tap

typedef void(* vertical_compose_5tap) (uint8_t *b0, uint8_t *b1, uint8_t *b2, uint8_t *b3, uint8_t *b4, int width)

Definition at line 51 of file dirac_dwt.h.

◆ vertical_compose_9tap

typedef void(* vertical_compose_9tap) (uint8_t *dst, uint8_t *b[8], int width)

Definition at line 52 of file dirac_dwt.h.

Enumeration Type Documentation

◆ dwt_type

enum dwt_type
Enumerator
DWT_SNOW_DAUB9_7 
DWT_SNOW_LEGALL5_3 
DWT_DIRAC_DD9_7 
DWT_DIRAC_LEGALL5_3 
DWT_DIRAC_DD13_7 
DWT_DIRAC_HAAR0 
DWT_DIRAC_HAAR1 
DWT_DIRAC_FIDELITY 
DWT_DIRAC_DAUB9_7 
DWT_NUM_TYPES 

Definition at line 74 of file dirac_dwt.h.

Function Documentation

◆ ff_spatial_idwt_init()

int ff_spatial_idwt_init ( DWTContext *  d,
DWTPlane *  p,
enum dwt_type  type,
int  decomposition_count,
int  bit_depth 
)

Definition at line 36 of file dirac_dwt.c.

Referenced by dirac_decode_frame_internal().

◆ ff_spatial_idwt_init_x86()

void ff_spatial_idwt_init_x86 ( DWTContext *  d,
enum dwt_type  type 
)

Definition at line 161 of file dirac_dwt_init.c.

Referenced by ff_spatial_idwt_init().

◆ ff_spatial_idwt_slice2()

void ff_spatial_idwt_slice2 ( DWTContext *  d,
int  y 
)

Definition at line 67 of file dirac_dwt.c.

Referenced by dirac_decode_frame_internal().

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