cabac.h File Reference

Context Adaptive Binary Arithmetic Coder. More...

#include <stdint.h>

Go to the source code of this file.

Data Structures
struct	CABACContext

Macros
#define	H264_NORM_SHIFT_OFFSET   0
#define	H264_LPS_RANGE_OFFSET   512
#define	H264_MLPS_STATE_OFFSET   1024
#define	H264_LAST_COEFF_FLAG_OFFSET_8x8_OFFSET   1280
#define	CABAC_BITS   16
#define	CABAC_MASK   ((1<<CABAC_BITS)-1)

Functions
int	ff_init_cabac_decoder (CABACContext *c, const uint8_t *buf, int buf_size)

Variables
const uint8_t	ff_h264_cabac_tables [512+4 *2 *64+4 *64+63]

Detailed Description

Context Adaptive Binary Arithmetic Coder.

Definition in file cabac.h.

Macro Definition Documentation

H264_NORM_SHIFT_OFFSET

#define H264_NORM_SHIFT_OFFSET   0

Definition at line 33 of file cabac.h.

Referenced by decode_significance_8x8_loongarch(), decode_significance_loongarch(), get_cabac_inline_loongarch(), and get_cabac_inline_mips().

H264_LPS_RANGE_OFFSET

#define H264_LPS_RANGE_OFFSET   512

Definition at line 34 of file cabac.h.

Referenced by decode_significance_8x8_loongarch(), decode_significance_loongarch(), get_cabac_inline_loongarch(), and get_cabac_inline_mips().

H264_MLPS_STATE_OFFSET

#define H264_MLPS_STATE_OFFSET   1024

Definition at line 35 of file cabac.h.

Referenced by decode_significance_8x8_loongarch(), decode_significance_loongarch(), get_cabac_inline_loongarch(), and get_cabac_inline_mips().

H264_LAST_COEFF_FLAG_OFFSET_8x8_OFFSET

#define H264_LAST_COEFF_FLAG_OFFSET_8x8_OFFSET   1280

Definition at line 36 of file cabac.h.

Referenced by decode_significance_8x8_loongarch().

CABAC_BITS

#define CABAC_BITS   16

Definition at line 38 of file cabac.h.

Referenced by cabac_bypass_bits(), cabac_unary_prefix(), ff_h264_decode_mb_cabac(), ff_init_cabac_decoder(), get_cabac_bypass(), get_cabac_bypass_sign(), get_cabac_inline(), get_cabac_terminate(), refill(), refill2(), vvc_get_cabac(), and vvc_refill2().

CABAC_MASK

#define CABAC_MASK   ((1<<CABAC_BITS)-1)

Definition at line 39 of file cabac.h.

Referenced by cabac_bypass_bits(), decode_significance_8x8_loongarch(), decode_significance_loongarch(), get_cabac_bypass(), get_cabac_bypass_loongarch(), get_cabac_bypass_mips(), get_cabac_bypass_sign(), get_cabac_bypass_sign_loongarch(), get_cabac_bypass_sign_mips(), get_cabac_inline(), get_cabac_inline_loongarch(), get_cabac_inline_mips(), refill(), refill2(), renorm_cabac_decoder_once(), vvc_get_cabac(), and vvc_refill2().

Function Documentation

ff_init_cabac_decoder()

int ff_init_cabac_decoder	(	CABACContext *	c,
		const uint8_t *	buf,
		int	buf_size )

Parameters

buf_size

size of buf in bits

Definition at line 162 of file cabac.c.

Referenced by decode_slice(), ep_init_cabac_decoder(), ff_h264_decode_mb_cabac(), ff_hevc_cabac_init(), hls_decode_entry_wpp(), main(), and skip_bytes().

Variable Documentation

ff_h264_cabac_tables

const uint8_t ff_h264_cabac_tables[512+4 *2 *64+4 *64+63]

extern

Referenced by DECLARE_ASM_ALIGNED(), decode_significance_8x8_loongarch(), decode_significance_loongarch(), get_cabac_inline_loongarch(), and get_cabac_inline_mips().