hevc_sao.c File Reference

#include <string.h>
#include "libavutil/intreadwrite.h"
#include "libavutil/mem_internal.h"
#include "libavcodec/hevc/dsp.h"
#include "checkasm.h"

Go to the source code of this file.

Macros
#define	SIZEOF_PIXEL   ((bit_depth + 7) / 8)
#define	PIXEL_STRIDE   (2*MAX_PB_SIZE + AV_INPUT_BUFFER_PADDING_SIZE)
#define	BUF_SIZE   (PIXEL_STRIDE * (64+2) * 2)
#define	OFFSET_THRESH   (1 << (bit_depth - 5))
#define	OFFSET_LENGTH   5
#define	randomize_buffers(buf0, buf1, size)
#define	randomize_buffers2(buf, size)

Functions
static void	check_sao_band (HEVCDSPContext *h, int bit_depth)
static void	check_sao_edge (HEVCDSPContext *h, int bit_depth)
void	checkasm_check_hevc_sao (void)

Variables
static const uint32_t	pixel_mask [3] = { 0xffffffff, 0x03ff03ff, 0x0fff0fff }
static const uint32_t	sao_size [5] = {8, 16, 32, 48, 64}

Macro Definition Documentation

SIZEOF_PIXEL

#define SIZEOF_PIXEL   ((bit_depth + 7) / 8)

Definition at line 33 of file hevc_sao.c.

PIXEL_STRIDE

#define PIXEL_STRIDE   (2*MAX_PB_SIZE + AV_INPUT_BUFFER_PADDING_SIZE)

Definition at line 34 of file hevc_sao.c.

BUF_SIZE

#define BUF_SIZE   (PIXEL_STRIDE * (64+2) * 2)

Definition at line 35 of file hevc_sao.c.

OFFSET_THRESH

#define OFFSET_THRESH   (1 << (bit_depth - 5))

Definition at line 36 of file hevc_sao.c.

OFFSET_LENGTH

#define OFFSET_LENGTH   5

Definition at line 37 of file hevc_sao.c.

randomize_buffers

#define randomize_buffers	(		buf0,
			buf1,
			size
	)

Value:

    do {                                                    \
        uint32_t mask = pixel_mask[(bit_depth - 8) >> 1];   \
        int k;                                              \
        for (k = 0; k < size; k += 4) {                     \
            uint32_t r = rnd() & mask;                      \
            AV_WN32A(buf0 + k, r);                          \
            AV_WN32A(buf1 + k, r);                          \
        }                                                   \
    } while (0)

Definition at line 39 of file hevc_sao.c.

randomize_buffers2

#define randomize_buffers2	(		buf,
			size
	)

Value:

    do {                                                    \
        uint32_t max_offset = OFFSET_THRESH;                \
        int k;                                              \
        if (bit_depth == 8) {                               \
            for (k = 0; k < size; k++) {                    \
                uint8_t r = rnd() % max_offset;             \
                buf[k] = r;                                 \
            }                                               \
        } else {                                            \
            for (k = 0; k < size; k++) {                    \
                uint16_t r = rnd() % max_offset;            \
                buf[k] = r;                                 \
            }                                               \
        }                                                   \
    } while (0)

Definition at line 50 of file hevc_sao.c.

Function Documentation

check_sao_band()

static void check_sao_band ( HEVCDSPContext *  h, int  bit_depth  )

static

Definition at line 67 of file hevc_sao.c.

Referenced by checkasm_check_hevc_sao().

check_sao_edge()

static void check_sao_edge ( HEVCDSPContext *  h, int  bit_depth  )

static

Definition at line 104 of file hevc_sao.c.

Referenced by checkasm_check_hevc_sao().

checkasm_check_hevc_sao()

void checkasm_check_hevc_sao

(

void

)

Definition at line 141 of file hevc_sao.c.

Variable Documentation

pixel_mask

const uint32_t pixel_mask[3] = { 0xffffffff, 0x03ff03ff, 0x0fff0fff }

static

Definition at line 30 of file hevc_sao.c.

sao_size

const uint32_t sao_size[5] = {8, 16, 32, 48, 64}

static

Definition at line 31 of file hevc_sao.c.

Referenced by check_sao_band(), and check_sao_edge().