Software codec selection and configuration API for Audio applications. More...

Data Structures
struct	lc3_encoder_context
	Private encoder context. More...

struct	lc3_decoder_context
	Private decoder context. More...

struct	sw_codec_encoder
	Software codec encoder configuration structure. More...

struct	sw_codec_decoder
	Software codec decoder configuration structure. More...

struct	sw_codec_config
	Sw_codec configuration structure. More...

Macros
#define	LC3_ENC_MONO_FRAME_SIZE 0

#define	LC3_PCM_NUM_BYTES_MONO 0

#define	LC3_ENC_TIME_US 0

#define	LC3_DEC_TIME_US 0

#define	ENC_MAX_FRAME_SIZE MAX(LC3_ENC_MONO_FRAME_SIZE, 0)

#define	ENC_MULTI_CHAN_MAX_FRAME_SIZE (LC3_ENC_MONO_FRAME_SIZE * CONFIG_AUDIO_ENCODE_CHANNELS_MAX)

#define	ENC_TIME_US MAX(LC3_ENC_TIME_US, 0)

#define	DEC_TIME_US MAX(LC3_DEC_TIME_US, 0)

#define	PCM_NUM_BYTES_MONO MAX(LC3_PCM_NUM_BYTES_MONO, 0)

#define	PCM_NUM_BYTES_MULTI_CHAN (PCM_NUM_BYTES_MONO * MAX(CONFIG_AUDIO_DECODE_CHANNELS_MAX, CONFIG_AUDIO_OUTPUT_CHANNELS))

Enumerations
enum	sw_codec_select { SW_CODEC_NONE , SW_CODEC_LC3 }
	Software codec selection enumeration. More...

Functions
bool	sw_codec_is_initialized (void)
	Check if the software codec is initialized.

int	sw_codec_encode (struct net_buf audio_frame_in, struct net_buf audio_frame_out)
	Encode PCM data and output encoded data.

int	sw_codec_decode (struct net_buf const const audio_frame_in, struct net_buf const audio_frame_out)
	Decode encoded data and output PCM data.

int	sw_codec_uninit (struct sw_codec_config sw_codec_cfg)
	Uninitialize the software codec and free the allocated space.

int	sw_codec_init (struct sw_codec_config sw_codec_cfg)
	Initialize the software codec and statically or dynamically allocate memory to be used, depending on the selected codec and its configuration.

Detailed Description

Software codec selection and configuration API for Audio applications.

This module provides the software codec interface for audio encoding and decoding operations. It supports the LC3 (Low Complexity Communication Codec) as specified in the Bluetooth LE Audio standard. The module handles codec initialization and codec configuration. It provides encoding/decoding functions with support for different sample rates, bitrates, and channel modes (mono/stereo). It integrates with Audio System to process audio data for both unicast (CIS) and broadcast (BIS) streaming modes.

Data Structures

Macros

Enumerations

Functions

Detailed Description