snow_dwt.h File Reference

#include <stddef.h>
#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	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.

DWT_53

#define DWT_53   1

Definition at line 69 of file snow_dwt.h.

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.

W_AO

#define W_AO   0

Definition at line 73 of file snow_dwt.h.

W_AS

#define W_AS   1

Definition at line 74 of file snow_dwt.h.

W_BM

#define W_BM   1

Definition at line 77 of file snow_dwt.h.

W_BO

#define W_BO   8

Definition at line 78 of file snow_dwt.h.

W_BS

#define W_BS   4

Definition at line 79 of file snow_dwt.h.

W_CM

#define W_CM   1

Definition at line 81 of file snow_dwt.h.

W_CO

#define W_CO   0

Definition at line 82 of file snow_dwt.h.

W_CS

#define W_CS   0

Definition at line 83 of file snow_dwt.h.

W_DM

#define W_DM   3

Definition at line 85 of file snow_dwt.h.

W_DO

#define W_DO   4

Definition at line 86 of file snow_dwt.h.

W_DS

#define W_DS   3

Definition at line 87 of file snow_dwt.h.

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.

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().