libavcodec/dwt.h File Reference

#include <stdint.h>

Go to the source code of this file.

Data Structures

struct  DWTCompose
struct  slice_buffer_s
 Used to minimize the amount of memory used in order to optimize cache performance. More...
struct  DWTContext

Defines

#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))
#define DWT_97   0
#define DWT_53   1
#define liftS   lift
#define W_AM   3
#define W_AO   0
#define W_AS   1
#define W_BM   1
#define W_BO   8
#define W_BS   4
#define W_CM   1
#define W_CO   0
#define W_CS   0
#define W_DM   3
#define W_DO   4
#define W_DS   3
#define slice_buffer_get_line(slice_buf, line_num)

Typedefs

typedef int DWTELEM
typedef short IDWTELEM
typedef struct slice_buffer_s slice_buffer
 Used to minimize the amount of memory used in order to optimize cache performance.
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)
int ff_spatial_idwt2 (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)
int ff_slice_buffer_init (slice_buffer *buf, int line_count, int max_allocated_lines, int line_width, IDWTELEM *base_buffer)
void ff_slice_buffer_release (slice_buffer *buf, int line)
void ff_slice_buffer_flush (slice_buffer *buf)
void ff_slice_buffer_destroy (slice_buffer *buf)
IDWTELEM * ff_slice_buffer_load_line (slice_buffer *buf, int line)
void ff_snow_vertical_compose97i (IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width)
void ff_snow_horizontal_compose97i (IDWTELEM *b, IDWTELEM *temp, int width)
void ff_snow_inner_add_yblock (const uint8_t *obmc, const int obmc_stride, uint8_t **block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer *sb, int add, uint8_t *dst8)
int ff_w53_32_c (void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
int ff_w97_32_c (void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
void ff_spatial_dwt (int *buffer, int *temp, int width, int height, int stride, int type, int decomposition_count)
void ff_spatial_idwt_buffered_init (DWTCompose *cs, slice_buffer *sb, int width, int height, int stride_line, int type, int decomposition_count)
void ff_spatial_idwt_buffered_slice (DWTContext *dsp, DWTCompose *cs, slice_buffer *slice_buf, IDWTELEM *temp, int width, int height, int stride_line, int type, int decomposition_count, int y)
void ff_spatial_idwt (IDWTELEM *buffer, IDWTELEM *temp, int width, int height, int stride, int type, int decomposition_count)
void ff_dwt_init (DWTContext *c)
void ff_dwt_init_x86 (DWTContext *c)

Define Documentation

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

Definition at line 115 of file dwt.h.

Referenced by horizontal_compose_dd97i(), and horizontal_compose_dirac53i().

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

Definition at line 148 of file dwt.h.

Referenced by horizontal_compose_daub97i(), and vertical_compose_daub97iH0().

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

Definition at line 142 of file 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 145 of file dwt.h.

Referenced by horizontal_compose_daub97i(), and vertical_compose_daub97iL0().

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

Definition at line 139 of file dwt.h.

Referenced by horizontal_compose_daub97i(), and vertical_compose_daub97iL1().

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

Definition at line 124 of file dwt.h.

Referenced by horizontal_compose_dd137i(), and vertical_compose_dd137iL0().

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

Definition at line 121 of file dwt.h.

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

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

Definition at line 118 of file dwt.h.

Referenced by horizontal_compose_dirac53i(), and vertical_compose_dirac53iH0().

#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 136 of file dwt.h.

Referenced by horizontal_compose_fidelityi(), and vertical_compose_fidelityiH0().

#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 133 of file dwt.h.

Referenced by horizontal_compose_fidelityi(), and vertical_compose_fidelityiL0().

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

Definition at line 130 of file dwt.h.

Referenced by horizontal_compose_haari(), and vertical_compose_haar().

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

Definition at line 127 of file dwt.h.

Referenced by horizontal_compose_haari(), and vertical_compose_haar().

#define DWT_53   1

Definition at line 154 of file dwt.h.

Referenced by ff_spatial_dwt(), ff_spatial_idwt_buffered_init(), ff_spatial_idwt_buffered_slice(), ff_spatial_idwt_init(), and ff_spatial_idwt_slice().

#define DWT_97   0

Definition at line 153 of file dwt.h.

Referenced by encode_init(), ff_spatial_dwt(), ff_spatial_idwt_buffered_init(), ff_spatial_idwt_buffered_slice(), ff_spatial_idwt_init(), and ff_spatial_idwt_slice().

#define liftS   lift

Definition at line 156 of file dwt.h.

Referenced by horizontal_decompose97i().

#define MAX_DECOMPOSITIONS   8

Definition at line 30 of file dwt.h.

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

#define MAX_DWT_SUPPORT   8

Definition at line 29 of file dwt.h.

#define slice_buffer_get_line ( slice_buf,
line_num   ) 

Value:

((slice_buf)->line[line_num] ? (slice_buf)->line[line_num]              \
                                 : ff_slice_buffer_load_line((slice_buf),   \
                                                             (line_num)))

Definition at line 174 of file dwt.h.

Referenced by correlate_slice_buffered(), decode_frame(), decode_subband_slice_buffered(), dequantize_slice_buffered(), ff_snow_inner_add_yblock(), spatial_compose53i_buffered_init(), spatial_compose53i_dy_buffered(), spatial_compose97i_buffered_init(), and spatial_compose97i_dy_buffered().

#define W_AM   3

Definition at line 157 of file dwt.h.

Referenced by ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iH0(), and vertical_decompose97iH0().

#define W_AO   0

Definition at line 158 of file dwt.h.

Referenced by ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iH0(), and vertical_decompose97iH0().

#define W_AS   1

Definition at line 159 of file dwt.h.

Referenced by ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iH0(), and vertical_decompose97iH0().

#define W_BM   1

Definition at line 162 of file dwt.h.

Referenced by ff_snow_vertical_compose97i(), horizontal_decompose97i(), and vertical_compose97iL0().

#define W_BO   8

Definition at line 163 of file dwt.h.

Referenced by ff_snow_vertical_compose97i(), horizontal_decompose97i(), snow_horizontal_compose_liftS_lead_out(), vertical_compose97iL0(), and vertical_decompose97iL0().

#define W_BS   4

Definition at line 164 of file dwt.h.

Referenced by ff_snow_vertical_compose97i(), horizontal_decompose97i(), snow_horizontal_compose_liftS_lead_out(), and vertical_compose97iL0().

#define W_CM   1

Definition at line 166 of file dwt.h.

Referenced by ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iH1(), and vertical_decompose97iH1().

#define W_CO   0

Definition at line 167 of file dwt.h.

Referenced by ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iH1(), and vertical_decompose97iH1().

#define W_CS   0

Definition at line 168 of file dwt.h.

Referenced by ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iH1(), and vertical_decompose97iH1().

#define W_DM   3

Definition at line 170 of file dwt.h.

Referenced by ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iL1(), and vertical_decompose97iL1().

#define W_DO   4

Definition at line 171 of file dwt.h.

Referenced by ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iL1(), and vertical_decompose97iL1().

#define W_DS   3

Definition at line 172 of file dwt.h.

Referenced by ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iL1(), and vertical_decompose97iL1().

Typedef Documentation

typedef int DWTELEM

Definition at line 26 of file dwt.h.

typedef short IDWTELEM

Definition at line 27 of file dwt.h.

typedef struct slice_buffer_s slice_buffer

Used to minimize the amount of memory used in order to optimize cache performance.

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

Definition at line 57 of file dwt.h.

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

Definition at line 58 of file dwt.h.

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

Definition at line 59 of file dwt.h.

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

Definition at line 60 of file 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 91 of file dwt.h.

Function Documentation

void ff_dwt_init ( DWTContext *  c  ) 

Definition at line 874 of file dwt.c.

Referenced by mca().

void ff_dwt_init_x86 ( DWTContext *  c  ) 

Definition at line 878 of file snowdsp.c.

Referenced by ff_dwt_init().

void ff_slice_buffer_destroy ( slice_buffer *  buf  ) 

Definition at line 100 of file dwt.c.

Referenced by decode_end(), and decode_frame().

void ff_slice_buffer_flush ( slice_buffer *  buf  ) 

Definition at line 92 of file dwt.c.

Referenced by decode_frame(), and ff_slice_buffer_destroy().

int ff_slice_buffer_init ( slice_buffer *  buf,
int  line_count,
int  max_allocated_lines,
int  line_width,
IDWTELEM *  base_buffer 
)

Definition at line 29 of file dwt.c.

Referenced by decode_frame().

IDWTELEM* ff_slice_buffer_load_line ( slice_buffer *  buf,
int  line 
)

Definition at line 63 of file dwt.c.

void ff_slice_buffer_release ( slice_buffer *  buf,
int  line 
)

Definition at line 79 of file dwt.c.

Referenced by decode_frame(), and ff_slice_buffer_flush().

void ff_snow_horizontal_compose97i ( IDWTELEM *  b,
IDWTELEM *  temp,
int  width 
)

Definition at line 480 of file dwt.c.

Referenced by ff_dwt_init(), and spatial_compose97i_dy().

void ff_snow_inner_add_yblock ( const uint8_t *  obmc,
const int  obmc_stride,
uint8_t **  block,
int  b_w,
int  b_h,
int  src_x,
int  src_y,
int  src_stride,
slice_buffer *  sb,
int  add,
uint8_t *  dst8 
)

Definition at line 35 of file snow.c.

Referenced by ff_dwt_init().

void ff_snow_vertical_compose97i ( IDWTELEM *  b0,
IDWTELEM *  b1,
IDWTELEM *  b2,
IDWTELEM *  b3,
IDWTELEM *  b4,
IDWTELEM *  b5,
int  width 
)

Definition at line 544 of file dwt.c.

Referenced by ff_dwt_init().

void ff_spatial_dwt ( int *  buffer,
int *  temp,
int  width,
int  height,
int  stride,
int  type,
int  decomposition_count 
)

Definition at line 325 of file dwt.c.

Referenced by encode_frame(), and w_c().

void ff_spatial_idwt ( IDWTELEM *  buffer,
IDWTELEM *  temp,
int  width,
int  height,
int  stride,
int  type,
int  decomposition_count 
)

Definition at line 755 of file dwt.c.

Referenced by calculate_visual_weight(), and encode_frame().

int ff_spatial_idwt2 ( IDWTELEM *  buffer,
int  width,
int  height,
int  stride,
enum dwt_type  type,
int  decomposition_count,
IDWTELEM *  temp 
)

Definition at line 1407 of file dwt.c.

void ff_spatial_idwt_buffered_init ( DWTCompose *  cs,
slice_buffer *  sb,
int  width,
int  height,
int  stride_line,
int  type,
int  decomposition_count 
)

Definition at line 663 of file dwt.c.

Referenced by decode_frame().

void ff_spatial_idwt_buffered_slice ( DWTContext *  dsp,
DWTCompose *  cs,
slice_buffer *  slice_buf,
IDWTELEM *  temp,
int  width,
int  height,
int  stride_line,
int  type,
int  decomposition_count,
int  y 
)

Definition at line 682 of file dwt.c.

Referenced by decode_frame().

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 1296 of file dwt.c.

Referenced by dirac_decode_frame_internal(), and ff_spatial_idwt2().

void ff_spatial_idwt_slice2 ( DWTContext *  d,
int  y 
)

Definition at line 1393 of file dwt.c.

Referenced by dirac_decode_frame_internal(), and ff_spatial_idwt2().

int ff_w53_32_c ( void *  v,
uint8_t *  pix1,
uint8_t *  pix2,
int  line_size,
int  h 
)

Definition at line 856 of file dwt.c.

Referenced by get_block_rd().

int ff_w97_32_c ( void *  v,
uint8_t *  pix1,
uint8_t *  pix2,
int  line_size,
int  h 
)

Definition at line 861 of file dwt.c.

Referenced by get_block_rd().

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