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_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)   ((slice_buf)->line[line_num] ? (slice_buf)->line[line_num] : ff_slice_buffer_load_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.
Functions
void	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, 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 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, int width, int height, int stride_line, int type, int decomposition_count, int y)
void	ff_spatial_idwt (IDWTELEM *buffer, 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 DWT_53   1

Definition at line 57 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 56 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 liftS   lift

Definition at line 59 of file dwt.h.

Referenced by horizontal_decompose97i().

#define MAX_DECOMPOSITIONS   8

Definition at line 54 of file dwt.h.

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

#define slice_buffer_get_line	(	slice_buf,
		line_num		)	((slice_buf)->line[line_num] ? (slice_buf)->line[line_num] : ff_slice_buffer_load_line((slice_buf), (line_num)))

Definition at line 129 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 61 of file dwt.h.

Referenced by ff_snow_horizontal_compose97i(), ff_snow_horizontal_compose97i_mmx(), ff_snow_horizontal_compose97i_sse2(), ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iH0(), and vertical_decompose97iH0().

#define W_AO   0

Definition at line 62 of file dwt.h.

Referenced by ff_snow_horizontal_compose97i(), ff_snow_horizontal_compose97i_mmx(), ff_snow_horizontal_compose97i_sse2(), ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iH0(), and vertical_decompose97iH0().

#define W_AS   1

Definition at line 63 of file dwt.h.

Referenced by ff_snow_horizontal_compose97i(), ff_snow_horizontal_compose97i_mmx(), ff_snow_horizontal_compose97i_sse2(), ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iH0(), and vertical_decompose97iH0().

#define W_BM   1

Definition at line 66 of file dwt.h.

Referenced by ff_snow_horizontal_compose97i(), ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iL0(), and vertical_decompose97iL0().

#define W_BO   8

Definition at line 67 of file dwt.h.

Referenced by ff_snow_horizontal_compose97i(), ff_snow_horizontal_compose97i_mmx(), ff_snow_horizontal_compose97i_sse2(), ff_snow_vertical_compose97i(), horizontal_decompose97i(), snow_horizontal_compose_liftS_lead_out(), vertical_compose97iL0(), and vertical_decompose97iL0().

#define W_BS   4

Definition at line 68 of file dwt.h.

Referenced by ff_snow_horizontal_compose97i(), ff_snow_horizontal_compose97i_mmx(), ff_snow_horizontal_compose97i_sse2(), ff_snow_vertical_compose97i(), horizontal_decompose97i(), snow_horizontal_compose_liftS_lead_out(), vertical_compose97iL0(), and vertical_decompose97iL0().

#define W_CM   1

Definition at line 70 of file dwt.h.

Referenced by ff_snow_horizontal_compose97i(), ff_snow_horizontal_compose97i_mmx(), ff_snow_horizontal_compose97i_sse2(), ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iH1(), and vertical_decompose97iH1().

#define W_CO   0

Definition at line 71 of file dwt.h.

Referenced by ff_snow_horizontal_compose97i(), ff_snow_horizontal_compose97i_mmx(), ff_snow_horizontal_compose97i_sse2(), ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iH1(), and vertical_decompose97iH1().

#define W_CS   0

Definition at line 72 of file dwt.h.

Referenced by ff_snow_horizontal_compose97i(), ff_snow_horizontal_compose97i_mmx(), ff_snow_horizontal_compose97i_sse2(), ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iH1(), and vertical_decompose97iH1().

#define W_DM   3

Definition at line 74 of file dwt.h.

Referenced by ff_snow_horizontal_compose97i(), ff_snow_horizontal_compose97i_mmx(), ff_snow_horizontal_compose97i_sse2(), ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iL1(), and vertical_decompose97iL1().

#define W_DO   4

Definition at line 75 of file dwt.h.

Referenced by ff_snow_horizontal_compose97i(), ff_snow_horizontal_compose97i_mmx(), ff_snow_horizontal_compose97i_sse2(), ff_snow_vertical_compose97i(), horizontal_decompose97i(), vertical_compose97iL1(), and vertical_decompose97iL1().

#define W_DS   3

Definition at line 76 of file dwt.h.

Referenced by ff_snow_horizontal_compose97i(), ff_snow_horizontal_compose97i_mmx(), ff_snow_horizontal_compose97i_sse2(), 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.

---

Function Documentation

void ff_dwt_init

(

DWTContext *

c

)

Definition at line 836 of file dwt.c.

Referenced by common_init().

void ff_dwt_init_x86

(

DWTContext *

c

)

Definition at line 876 of file snowdsp_mmx.c.

Referenced by ff_dwt_init().

void ff_slice_buffer_destroy

(

slice_buffer *

buf

)

Definition at line 81 of file dwt.c.

Referenced by decode_end(), and decode_frame().

void ff_slice_buffer_flush

(

slice_buffer *

buf

)

Definition at line 72 of file dwt.c.

Referenced by decode_frame(), and ff_slice_buffer_destroy().

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

Definition at line 25 of file dwt.c.

Referenced by decode_frame().

IDWTELEM* ff_slice_buffer_load_line	(	slice_buffer *	buf,
		int	line
	)

Definition at line 43 of file dwt.c.

void ff_slice_buffer_release	(	slice_buffer *	buf,
		int	line
	)

Definition at line 59 of file dwt.c.

Referenced by decode_frame(), and ff_slice_buffer_flush().

void ff_snow_horizontal_compose97i	(	IDWTELEM *	b,
		int	width
	)

Definition at line 510 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 1202 of file snow.c.

Referenced by ff_dwt_init(), ff_snow_inner_add_yblock_mmx(), and ff_snow_inner_add_yblock_sse2().

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

Definition at line 582 of file dwt.c.

Referenced by ff_dwt_init().

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

Definition at line 392 of file dwt.c.

Referenced by w_c().

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

Definition at line 727 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 673 of file dwt.c.

Referenced by decode_frame().

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

Definition at line 683 of file dwt.c.

Referenced by decode_frame().

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

Definition at line 820 of file dwt.c.

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

Definition at line 824 of file dwt.c.