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dirac_dwt.h File Reference
#include <stdint.h>

Go to the source code of this file.

Data Structures

struct  DWTCompose
 
struct  DWTContext
 

Macros

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

Typedefs

typedef int DWTELEM
 
typedef short IDWTELEM
 
typedef void(* vertical_compose_2tap )(IDWTELEM *b0, IDWTELEM *b1, int width)
 
typedef void(* vertical_compose_3tap )(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width)
 
typedef void(* vertical_compose_5tap )(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, int width)
 
typedef void(* vertical_compose_9tap )(IDWTELEM *dst, IDWTELEM *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_init2 (DWTContext *d, IDWTELEM *buffer, int width, int height, int stride, enum dwt_type type, int decomposition_count, IDWTELEM *temp)
 
void ff_spatial_idwt_slice2 (DWTContext *d, int y)
 

Macro Definition Documentation

#define MAX_DWT_SUPPORT   8

Definition at line 29 of file dirac_dwt.h.

#define MAX_DECOMPOSITIONS   8

Definition at line 30 of file dirac_dwt.h.

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

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

Definition at line 86 of file dirac_dwt.h.

Referenced by horizontal_compose_dd97i(), and horizontal_compose_dirac53i().

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

Definition at line 89 of file dirac_dwt.h.

Referenced by horizontal_compose_dirac53i(), and vertical_compose_dirac53iH0().

#define COMPOSE_DD97iH0 (   b0,
  b1,
  b2,
  b3,
  b4 
)    (b2 + ((-b0 + 9*b1 + 9*b3 - b4 + 8) >> 4))
#define COMPOSE_DD137iL0 (   b0,
  b1,
  b2,
  b3,
  b4 
)    (b2 - ((-b0 + 9*b1 + 9*b3 - b4 + 16) >> 5))

Definition at line 95 of file dirac_dwt.h.

Referenced by horizontal_compose_dd137i(), and vertical_compose_dd137iL0().

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

Definition at line 98 of file dirac_dwt.h.

Referenced by horizontal_compose_haari(), and vertical_compose_haar().

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

Definition at line 101 of file dirac_dwt.h.

Referenced by horizontal_compose_haari(), and vertical_compose_haar().

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

Definition at line 104 of file dirac_dwt.h.

Referenced by horizontal_compose_fidelityi(), and vertical_compose_fidelityiL0().

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

Definition at line 107 of file dirac_dwt.h.

Referenced by horizontal_compose_fidelityi(), and vertical_compose_fidelityiH0().

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

Definition at line 110 of file dirac_dwt.h.

Referenced by horizontal_compose_daub97i(), and vertical_compose_daub97iL1().

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

Definition at line 113 of file dirac_dwt.h.

Referenced by horizontal_compose_daub97i(), and vertical_compose_daub97iH1().

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

Definition at line 116 of file dirac_dwt.h.

Referenced by horizontal_compose_daub97i(), and vertical_compose_daub97iL0().

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

Definition at line 119 of file dirac_dwt.h.

Referenced by horizontal_compose_daub97i(), and vertical_compose_daub97iH0().

Typedef Documentation

typedef int DWTELEM

Definition at line 26 of file dirac_dwt.h.

typedef short IDWTELEM

Definition at line 27 of file dirac_dwt.h.

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

Definition at line 40 of file dirac_dwt.h.

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

Definition at line 41 of file dirac_dwt.h.

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

Definition at line 42 of file dirac_dwt.h.

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

Definition at line 43 of file dirac_dwt.h.

Enumeration Type Documentation

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 65 of file dirac_dwt.h.

Function Documentation

int ff_spatial_idwt_init2 ( DWTContext d,
IDWTELEM buffer,
int  width,
int  height,
int  stride,
enum dwt_type  type,
int  decomposition_count,
IDWTELEM temp 
)

Definition at line 450 of file dirac_dwt.c.

Referenced by dirac_decode_frame_internal().

void ff_spatial_idwt_slice2 ( DWTContext d,
int  y 
)

Definition at line 548 of file dirac_dwt.c.

Referenced by dirac_decode_frame_internal().