#include <stddef.h>
#include <stdint.h>

Data Structures
struct	DWTCompose

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

struct	SnowDWTContext

Macros
#define	MAX_DECOMPOSITIONS 8

#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

Functions
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 (struct MpegEncContext v, uint8_t pix1, uint8_t *pix2, ptrdiff_t line_size, int h)

int	ff_w97_32_c (struct MpegEncContext v, uint8_t pix1, uint8_t *pix2, ptrdiff_t 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 (SnowDWTContext 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 (SnowDWTContext *c)

void	ff_dwt_init_x86 (SnowDWTContext *c)

Macro Definition Documentation

◆ MAX_DECOMPOSITIONS

#define MAX_DECOMPOSITIONS 8

Definition at line 32 of file snow_dwt.h.

◆ DWT_97

#define DWT_97 0

Definition at line 68 of file snow_dwt.h.

Referenced by encode_init(), ff_spatial_dwt(), ff_spatial_idwt_buffered_init(), ff_spatial_idwt_buffered_slice(), spatial_idwt_init(), and spatial_idwt_slice().

◆ DWT_53

#define DWT_53 1

Definition at line 69 of file snow_dwt.h.

Referenced by ff_spatial_dwt(), ff_spatial_idwt_buffered_init(), ff_spatial_idwt_buffered_slice(), spatial_idwt_init(), and spatial_idwt_slice().

◆ liftS

#define liftS lift

Definition at line 71 of file snow_dwt.h.

◆ W_AM

#define W_AM 3

Definition at line 72 of file snow_dwt.h.

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

◆ W_AO

#define W_AO 0

Definition at line 73 of file snow_dwt.h.

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

◆ W_AS

#define W_AS 1

Definition at line 74 of file snow_dwt.h.

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

◆ W_BM

#define W_BM 1

Definition at line 77 of file snow_dwt.h.

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

◆ W_BO

#define W_BO 8

Definition at line 78 of file snow_dwt.h.

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

◆ W_BS

#define W_BS 4

Definition at line 79 of file snow_dwt.h.

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

◆ W_CM

#define W_CM 1

Definition at line 81 of file snow_dwt.h.

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

◆ W_CO

#define W_CO 0

Definition at line 82 of file snow_dwt.h.

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

◆ W_CS

#define W_CS 0

Definition at line 83 of file snow_dwt.h.

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

◆ W_DM

#define W_DM 3

Definition at line 85 of file snow_dwt.h.

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

◆ W_DO

#define W_DO 4

Definition at line 86 of file snow_dwt.h.

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

◆ W_DS

#define W_DS 3

Definition at line 87 of file snow_dwt.h.

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

◆ slice_buffer_get_line

#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 89 of file snow_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().

Typedef Documentation

◆ DWTELEM

typedef int DWTELEM

Definition at line 27 of file snow_dwt.h.

◆ IDWTELEM

typedef short IDWTELEM

Definition at line 30 of file snow_dwt.h.

Function Documentation

◆ ff_slice_buffer_init()

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

Definition at line 28 of file snow_dwt.c.

Referenced by decode_frame().

◆ ff_slice_buffer_release()

void ff_slice_buffer_release	(	slice_buffer *	buf,
		int	line
	)

Definition at line 78 of file snow_dwt.c.

Referenced by decode_frame(), and ff_slice_buffer_flush().

◆ ff_slice_buffer_flush()

void ff_slice_buffer_flush ( slice_buffer * buf )

Definition at line 91 of file snow_dwt.c.

Referenced by decode_frame(), and ff_slice_buffer_destroy().

◆ ff_slice_buffer_destroy()

void ff_slice_buffer_destroy ( slice_buffer * buf )

Definition at line 103 of file snow_dwt.c.

Referenced by decode_end(), and decode_frame().

◆ ff_slice_buffer_load_line()

IDWTELEM* ff_slice_buffer_load_line	(	slice_buffer *	buf,
		int	line
	)

Definition at line 62 of file snow_dwt.c.

◆ ff_snow_vertical_compose97i()

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

Definition at line 529 of file snow_dwt.c.

Referenced by ff_dwt_init().

◆ ff_snow_horizontal_compose97i()

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

Definition at line 465 of file snow_dwt.c.

Referenced by ff_dwt_init(), and spatial_compose97i_dy().

◆ ff_snow_inner_add_yblock()

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 36 of file snow.c.

Referenced by ff_dwt_init().

◆ ff_w53_32_c()

int ff_w53_32_c	(	struct MpegEncContext *	v,
		uint8_t *	pix1,
		uint8_t *	pix2,
		ptrdiff_t	line_size,
		int	h
	)

Definition at line 832 of file snow_dwt.c.

Referenced by get_block_rd().

◆ ff_w97_32_c()

int ff_w97_32_c	(	struct MpegEncContext *	v,
		uint8_t *	pix1,
		uint8_t *	pix2,
		ptrdiff_t	line_size,
		int	h
	)

Definition at line 837 of file snow_dwt.c.

Referenced by get_block_rd().

◆ ff_spatial_dwt()

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

Definition at line 319 of file snow_dwt.c.

Referenced by encode_frame(), main(), and w_c().

◆ ff_spatial_idwt_buffered_init()

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 639 of file snow_dwt.c.

Referenced by decode_frame().

◆ ff_spatial_idwt_buffered_slice()

void ff_spatial_idwt_buffered_slice	(	SnowDWTContext *	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 658 of file snow_dwt.c.

Referenced by decode_frame().

◆ ff_spatial_idwt()

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

Definition at line 731 of file snow_dwt.c.

Referenced by calculate_visual_weight(), encode_frame(), and main().

◆ ff_dwt_init()

void ff_dwt_init ( SnowDWTContext * c )

Definition at line 850 of file snow_dwt.c.

Referenced by mca().

◆ ff_dwt_init_x86()

void ff_dwt_init_x86 ( SnowDWTContext * c )

Definition at line 880 of file snowdsp.c.

Referenced by ff_dwt_init().

Data Structures

Macros

Typedefs

Functions

Macro Definition Documentation

◆ MAX_DECOMPOSITIONS

◆ DWT_97

◆ DWT_53

◆ liftS

◆ W_AM

◆ W_AO

◆ W_AS

◆ W_BM

◆ W_BO

◆ W_BS

◆ W_CM

◆ W_CO

◆ W_CS

◆ W_DM

◆ W_DO

◆ W_DS

◆ slice_buffer_get_line

Typedef Documentation

◆ DWTELEM

◆ IDWTELEM

Function Documentation

◆ ff_slice_buffer_init()

◆ ff_slice_buffer_release()

◆ ff_slice_buffer_flush()

◆ ff_slice_buffer_destroy()

◆ ff_slice_buffer_load_line()

◆ ff_snow_vertical_compose97i()

◆ ff_snow_horizontal_compose97i()

◆ ff_snow_inner_add_yblock()

◆ ff_w53_32_c()

◆ ff_w97_32_c()

◆ ff_spatial_dwt()

◆ ff_spatial_idwt_buffered_init()

◆ ff_spatial_idwt_buffered_slice()

◆ ff_spatial_idwt()

◆ ff_dwt_init()

◆ ff_dwt_init_x86()