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 - ((int)(b0 + (unsigned)(b2) + 2) >> 2))
#define	COMPOSE_DIRAC53iH0(b0, b1, b2)   (b1 + ((int)(b0 + (unsigned)(b2) + 1) >> 1))
#define	COMPOSE_DD97iH0(b0, b1, b2, b3, b4)   (b2 + ((int)(-b0 + 9U*b1 + 9U*b3 - b4 + 8) >> 4))
#define	COMPOSE_DD137iL0(b0, b1, b2, b3, b4)   (b2 - ((int)(-b0 + 9U*b1 + 9U*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)   ((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

#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_common_end(), ff_snow_reset_contexts(), and ff_spatial_idwt().

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

Definition at line 95 of file dirac_dwt.h.

Referenced by horizontal_compose_dd97i_TMPL(), and horizontal_compose_dirac53i_TMPL().

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

Definition at line 98 of file dirac_dwt.h.

Referenced by horizontal_compose_dirac53i_TMPL(), and vertical_compose_dirac53iH0_TMPL().

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

Definition at line 101 of file dirac_dwt.h.

Referenced by horizontal_compose_dd137i_TMPL(), horizontal_compose_dd97i_TMPL(), and vertical_compose_dd97iH0_TMPL().

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

Definition at line 104 of file dirac_dwt.h.

Referenced by horizontal_compose_dd137i_TMPL(), and vertical_compose_dd137iL0_TMPL().

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

Definition at line 107 of file dirac_dwt.h.

Referenced by horizontal_compose_haari_TMPL(), and vertical_compose_haar_TMPL().

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

Definition at line 110 of file dirac_dwt.h.

Referenced by horizontal_compose_haari_TMPL(), and vertical_compose_haar_TMPL().

#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_TMPL(), and vertical_compose_fidelityiL0_TMPL().

#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_TMPL(), and vertical_compose_fidelityiH0_TMPL().

#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_TMPL(), and vertical_compose_daub97iL1_TMPL().

#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_TMPL(), and vertical_compose_daub97iH1_TMPL().

#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_TMPL(), and vertical_compose_daub97iL0_TMPL().

#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_TMPL(), and vertical_compose_daub97iH0_TMPL().

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)(uint8_t *b0, uint8_t *b1, int width)

Definition at line 49 of file dirac_dwt.h.

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.

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.

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

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

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().

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().

void ff_spatial_idwt_slice2	(	DWTContext *	d,
		int	y
	)

Definition at line 67 of file dirac_dwt.c.

Referenced by dirac_decode_frame_internal().