SBC common definitions for the encoder and decoder. More...

#include <stddef.h>
#include <stdint.h>
#include "libavutil/crc.h"
#include "libavutil/mem_internal.h"

Data Structures
struct	sbc_frame

Macros
#define	MSBC_BLOCKS 15

#define	SBC_FREQ_16000 0x00

#define	SBC_FREQ_32000 0x01

#define	SBC_FREQ_44100 0x02

#define	SBC_FREQ_48000 0x03

#define	SBC_BLK_4 0x00

#define	SBC_BLK_8 0x01

#define	SBC_BLK_12 0x02

#define	SBC_BLK_16 0x03

#define	SBC_MODE_MONO 0x00

#define	SBC_MODE_DUAL_CHANNEL 0x01

#define	SBC_MODE_STEREO 0x02

#define	SBC_MODE_JOINT_STEREO 0x03

#define	SBC_AM_LOUDNESS 0x00

#define	SBC_AM_SNR 0x01

#define	SBC_SB_4 0x00

#define	SBC_SB_8 0x01

#define	SBC_SYNCWORD 0x9C

#define	MSBC_SYNCWORD 0xAD

#define	SBCDEC_FIXED_EXTRA_BITS 2

#define	SBC_ALIGN 16

Functions
uint8_t	ff_sbc_crc8 (const AVCRC crc_ctx, const uint8_t data, size_t len)

void	ff_sbc_calculate_bits (const struct sbc_frame frame, int(bits)[8])

Detailed Description

SBC common definitions for the encoder and decoder.

Definition in file sbc.h.

Macro Definition Documentation

◆ MSBC_BLOCKS

#define MSBC_BLOCKS 15

Definition at line 41 of file sbc.h.

Referenced by sbc_encode_init(), and sbc_unpack_frame().

◆ SBC_FREQ_16000

#define SBC_FREQ_16000 0x00

Definition at line 44 of file sbc.h.

Referenced by sbc_unpack_frame().

◆ SBC_FREQ_32000

#define SBC_FREQ_32000 0x01

Definition at line 45 of file sbc.h.

◆ SBC_FREQ_44100

#define SBC_FREQ_44100 0x02

Definition at line 46 of file sbc.h.

◆ SBC_FREQ_48000

#define SBC_FREQ_48000 0x03

Definition at line 47 of file sbc.h.

◆ SBC_BLK_4

#define SBC_BLK_4 0x00

Definition at line 50 of file sbc.h.

◆ SBC_BLK_8

#define SBC_BLK_8 0x01

Definition at line 51 of file sbc.h.

◆ SBC_BLK_12

#define SBC_BLK_12 0x02

Definition at line 52 of file sbc.h.

◆ SBC_BLK_16

#define SBC_BLK_16 0x03

Definition at line 53 of file sbc.h.

◆ SBC_MODE_MONO

#define SBC_MODE_MONO 0x00

Definition at line 56 of file sbc.h.

Referenced by sbc_encode_init(), and sbc_parse_header().

◆ SBC_MODE_DUAL_CHANNEL

#define SBC_MODE_DUAL_CHANNEL 0x01

Definition at line 57 of file sbc.h.

Referenced by sbc_encode_frame(), sbc_encode_init(), and sbc_parse_header().

◆ SBC_MODE_STEREO

#define SBC_MODE_STEREO 0x02

Definition at line 58 of file sbc.h.

Referenced by sbc_encode_init().

◆ SBC_MODE_JOINT_STEREO

#define SBC_MODE_JOINT_STEREO 0x03

Definition at line 59 of file sbc.h.

Referenced by sbc_encode_frame(), sbc_encode_init(), and sbc_parse_header().

◆ SBC_AM_LOUDNESS

#define SBC_AM_LOUDNESS 0x00

Definition at line 62 of file sbc.h.

Referenced by sbc_encode_init().

◆ SBC_AM_SNR

#define SBC_AM_SNR 0x01

Definition at line 63 of file sbc.h.

◆ SBC_SB_4

#define SBC_SB_4 0x00

Definition at line 66 of file sbc.h.

◆ SBC_SB_8

#define SBC_SB_8 0x01

Definition at line 67 of file sbc.h.

◆ SBC_SYNCWORD

#define SBC_SYNCWORD 0x9C

Definition at line 70 of file sbc.h.

Referenced by sbc_pack_frame(), sbc_parse_header(), and sbc_unpack_frame().

◆ MSBC_SYNCWORD

#define MSBC_SYNCWORD 0xAD

Definition at line 71 of file sbc.h.

Referenced by sbc_pack_frame(), sbc_parse_header(), and sbc_unpack_frame().

◆ SBCDEC_FIXED_EXTRA_BITS

#define SBCDEC_FIXED_EXTRA_BITS 2

Definition at line 74 of file sbc.h.

Referenced by sbc_unpack_frame().

◆ SBC_ALIGN

#define SBC_ALIGN 16

Definition at line 80 of file sbc.h.

Referenced by check_sbc_analyze(), and check_sbc_calc_scalefactors().

Function Documentation

◆ ff_sbc_crc8()

uint8_t ff_sbc_crc8	(	const AVCRC *	crc_ctx,
		const uint8_t *	data,
		size_t	len )

Definition at line 54 of file sbc.c.

Referenced by sbc_pack_frame(), and sbc_unpack_frame().

◆ ff_sbc_calculate_bits()

void ff_sbc_calculate_bits	(	const struct sbc_frame *	frame,
		int(*)	bits[8] )

Definition at line 78 of file sbc.c.