sao.h File Reference

Sample Adaptive Offset filter. More...

#include "checkpoint.h"
#include "cu.h"
#include "encoder.h"
#include "encoderstate.h"
#include "global.h"
#include "kvazaar.h"
#include "videoframe.h"

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Data Structures
struct	sao_info_t

Macros
#define	CHECKPOINT_SAO_INFO(prefix_str, sao)

Typedefs
typedef struct sao_info_t	sao_info_t

Enumerations
enum	sao_type { SAO_TYPE_NONE = 0 , SAO_TYPE_BAND , SAO_TYPE_EDGE }
enum	sao_eo_class {   SAO_EO0 = 0 , SAO_EO1 , SAO_EO2 , SAO_EO3 ,   SAO_NUM_EO }
enum	sao_eo_cat {   SAO_EO_CAT0 = 0 , SAO_EO_CAT1 , SAO_EO_CAT2 , SAO_EO_CAT3 ,   SAO_EO_CAT4 , NUM_SAO_EDGE_CATEGORIES }

Functions
void	kvz_sao_reconstruct (const encoder_state_t *state, const kvz_pixel *buffer, int stride, int frame_x, int frame_y, int width, int height, const sao_info_t *sao, color_t color)
	Reconstruct SAO.
void	kvz_sao_search_lcu (const encoder_state_t *const state, int lcu_x, int lcu_y)
void	kvz_calc_sao_offset_array (const encoder_control_t *const encoder, const sao_info_t *sao, int *offset, color_t color_i)
	calculate an array of intensity correlations for each intensity value

Variables
static const vector2d_t	g_sao_edge_offsets [SAO_NUM_EO][2]

Macro Definition Documentation

CHECKPOINT_SAO_INFO

#define CHECKPOINT_SAO_INFO	(		prefix_str,
			sao
	)

Value:

  CHECKPOINT(prefix_str " type=%d eo_class=%d ddistortion=%d " \
  "merge_left_flag=%d merge_up_flag=%d band_position=%d " \
  "offsets[0]=%d offsets[1]=%d offsets[2]=%d offsets[3]=%d offsets[4]=%d", \
  (sao).type, (sao).eo_class, (sao).ddistortion, \
  (sao).merge_left_flag, (sao).merge_up_flag, (sao).band_position[0], \
  (sao).offsets[0], (sao).offsets[1], (sao).offsets[2], (sao).offsets[3], (sao).offsets[4])

Typedef Documentation

sao_info_t

typedef struct sao_info_t sao_info_t

Enumeration Type Documentation

sao_eo_cat

enum sao_eo_cat

Enumerator
SAO_EO_CAT0
SAO_EO_CAT1
SAO_EO_CAT2
SAO_EO_CAT3
SAO_EO_CAT4
NUM_SAO_EDGE_CATEGORIES

sao_eo_class

enum sao_eo_class

Enumerator
SAO_EO0
SAO_EO1
SAO_EO2
SAO_EO3
SAO_NUM_EO

sao_type

enum sao_type

Enumerator
SAO_TYPE_NONE
SAO_TYPE_BAND
SAO_TYPE_EDGE

Function Documentation

kvz_calc_sao_offset_array()

void kvz_calc_sao_offset_array	(	const encoder_control_t *const	encoder,
		const sao_info_t *	sao,
		int *	offset,
		color_t	color_i
	)

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kvz_sao_reconstruct()

void kvz_sao_reconstruct	(	const encoder_state_t *	state,
		const kvz_pixel *	buffer,
		int	stride,
		int	frame_x,
		int	frame_y,
		int	width,
		int	height,
		const sao_info_t *	sao,
		color_t	color
	)

Parameters

encoder	encoder state
buffer	Buffer containing the deblocked input pixels. The area to filter starts at index 0.
stride	stride of buffer
frame_x	x-coordinate of the top-left corner in pixels
frame_y	y-coordinate of the top-left corner in pixels
width	width of the area to filter
height	height of the area to filter
sao	SAO information
color	color plane index

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kvz_sao_search_lcu()

void kvz_sao_search_lcu	(	const encoder_state_t *const	state,
		int	lcu_x,
		int	lcu_y
	)

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Variable Documentation

g_sao_edge_offsets

const vector2d_t g_sao_edge_offsets[SAO_NUM_EO][2]

static

Initial value:

= {
  { { -1, 0 }, { 1, 0 } },
  { { 0, -1 }, { 0, 1 } },
  { { -1, -1 }, { 1, 1 } },
  { { 1, -1 }, { -1, 1 } }
}