cabac.h File Reference

Context Adaptive Binary Arithmetic Coder. More...

#include <stdint.h>
#include "put_bits.h"

Go to the source code of this file.

Classes
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)

Typedefs
typedef struct CABACContext	CABACContext

Functions
void	ff_init_cabac_encoder (CABACContext *c, uint8_t *buf, int buf_size)
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.

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

ff_init_cabac_encoder()

void ff_init_cabac_encoder	(	CABACContext *	c,
		uint8_t *	buf,
		int	buf_size
	)

Parameters

buf_size

size of buf in bits