audio.h File Reference

Bluetooth Audio handling. More...

#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <zephyr/autoconf.h>
#include <zephyr/bluetooth/audio/lc3.h>
#include <zephyr/bluetooth/bluetooth.h>
#include <zephyr/bluetooth/buf.h>
#include <zephyr/bluetooth/conn.h>
#include <zephyr/bluetooth/gatt.h>
#include <zephyr/bluetooth/hci.h>
#include <zephyr/bluetooth/iso.h>
#include <zephyr/sys/atomic.h>
#include <zephyr/sys/util.h>
#include <zephyr/sys/util_macro.h>

Go to the source code of this file.

Data Structures
struct	bt_audio_codec_octets_per_codec_frame
	struct to hold minimum and maximum supported codec frame sizes More...
struct	bt_audio_codec_cap
	Codec capability structure. More...
struct	bt_audio_codec_cfg
	Codec specific configuration structure. More...

Macros
#define	BT_AUDIO_BROADCAST_ID_SIZE   3
	Size of the broadcast ID in octets.
#define	BT_AUDIO_BROADCAST_ID_MAX   0xFFFFFFU
	Maximum broadcast ID value.
#define	BT_AUDIO_PD_PREF_NONE   0x000000U
	Indicates that the server have no preference for the presentation delay.
#define	BT_AUDIO_PD_MAX   0xFFFFFFU
	Maximum presentation delay in microseconds.
#define	BT_AUDIO_RTN_PREF_NONE   0xFFU
	Indicates that the unicast server does not have a preference for any retransmission number.
#define	BT_AUDIO_BROADCAST_NAME_LEN_MIN   4
	The minimum size of a Broadcast Name as defined by Bluetooth Assigned Numbers.
#define	BT_AUDIO_BROADCAST_NAME_LEN_MAX   128
	The maximum size of a Broadcast Name as defined by Bluetooth Assigned Numbers.
#define	BT_AUDIO_LANG_SIZE   3
	Size of the stream language value, e.g.
#define	BT_AUDIO_CODEC_CAP_CHAN_COUNT_MIN   1
	Minimum supported channel counts.
#define	BT_AUDIO_CODEC_CAP_CHAN_COUNT_MAX   8
	Maximum supported channel counts.
#define	BT_AUDIO_CODEC_CAP_CHAN_COUNT_SUPPORT(...)
	Channel count support capability.
#define	BT_AUDIO_CONTEXT_TYPE_ANY
	Any known context.
#define	BT_AUDIO_METADATA_TYPE_IS_KNOWN(_type)
	Helper to check whether metadata type is known by the stack.
#define	BT_AUDIO_CODEC_DATA(_type, _bytes...)
	Helper to declare elements of bt_audio_codec_cap arrays.
#define	BT_AUDIO_CODEC_CFG(_id, _cid, _vid, _data, _meta)
	Helper to declare Codec config parsing APIs.
#define	BT_AUDIO_CODEC_CAP(_id, _cid, _vid, _data, _meta)
	Helper to declare Codec capability parsing APIs structure.
#define	BT_AUDIO_LOCATION_ANY
	Any known location.
Unicast Announcement Type
#define	BT_AUDIO_UNICAST_ANNOUNCEMENT_GENERAL   0x00
	Unicast Server is connectable and is requesting a connection.
#define	BT_AUDIO_UNICAST_ANNOUNCEMENT_TARGETED   0x01
	Unicast Server is connectable but is not requesting a connection.

Enumerations
enum	bt_audio_codec_cap_type {   BT_AUDIO_CODEC_CAP_TYPE_FREQ = 0x01 , BT_AUDIO_CODEC_CAP_TYPE_DURATION = 0x02 , BT_AUDIO_CODEC_CAP_TYPE_CHAN_COUNT = 0x03 , BT_AUDIO_CODEC_CAP_TYPE_FRAME_LEN = 0x04 ,   BT_AUDIO_CODEC_CAP_TYPE_FRAME_COUNT = 0x05 }
	Codec capability types. More...
enum	bt_audio_codec_cap_freq {   BT_AUDIO_CODEC_CAP_FREQ_8KHZ = BIT(0) , BT_AUDIO_CODEC_CAP_FREQ_11KHZ = BIT(1) , BT_AUDIO_CODEC_CAP_FREQ_16KHZ = BIT(2) , BT_AUDIO_CODEC_CAP_FREQ_22KHZ = BIT(3) ,   BT_AUDIO_CODEC_CAP_FREQ_24KHZ = BIT(4) , BT_AUDIO_CODEC_CAP_FREQ_32KHZ = BIT(5) , BT_AUDIO_CODEC_CAP_FREQ_44KHZ = BIT(6) , BT_AUDIO_CODEC_CAP_FREQ_48KHZ = BIT(7) ,   BT_AUDIO_CODEC_CAP_FREQ_88KHZ = BIT(8) , BT_AUDIO_CODEC_CAP_FREQ_96KHZ = BIT(9) , BT_AUDIO_CODEC_CAP_FREQ_176KHZ = BIT(10) , BT_AUDIO_CODEC_CAP_FREQ_192KHZ = BIT(11) ,   BT_AUDIO_CODEC_CAP_FREQ_384KHZ = BIT(12) , BT_AUDIO_CODEC_CAP_FREQ_ANY }
	Supported frequencies bitfield. More...
enum	bt_audio_codec_cap_frame_dur {   BT_AUDIO_CODEC_CAP_DURATION_7_5 = BIT(0) , BT_AUDIO_CODEC_CAP_DURATION_10 = BIT(1) , BT_AUDIO_CODEC_CAP_DURATION_ANY , BT_AUDIO_CODEC_CAP_DURATION_PREFER_7_5 = BIT(4) ,   BT_AUDIO_CODEC_CAP_DURATION_PREFER_10 = BIT(5) }
	Supported frame durations bitfield. More...
enum	bt_audio_codec_cap_chan_count {   BT_AUDIO_CODEC_CAP_CHAN_COUNT_1 = BIT(0) , BT_AUDIO_CODEC_CAP_CHAN_COUNT_2 = BIT(1) , BT_AUDIO_CODEC_CAP_CHAN_COUNT_3 = BIT(2) , BT_AUDIO_CODEC_CAP_CHAN_COUNT_4 = BIT(3) ,   BT_AUDIO_CODEC_CAP_CHAN_COUNT_5 = BIT(4) , BT_AUDIO_CODEC_CAP_CHAN_COUNT_6 = BIT(5) , BT_AUDIO_CODEC_CAP_CHAN_COUNT_7 = BIT(6) , BT_AUDIO_CODEC_CAP_CHAN_COUNT_8 = BIT(7) ,   BT_AUDIO_CODEC_CAP_CHAN_COUNT_ANY }
	Supported audio capabilities channel count bitfield. More...
enum	bt_audio_codec_cfg_type {   BT_AUDIO_CODEC_CFG_FREQ = 0x01 , BT_AUDIO_CODEC_CFG_DURATION = 0x02 , BT_AUDIO_CODEC_CFG_CHAN_ALLOC = 0x03 , BT_AUDIO_CODEC_CFG_FRAME_LEN = 0x04 ,   BT_AUDIO_CODEC_CFG_FRAME_BLKS_PER_SDU = 0x05 }
	Codec configuration types. More...
enum	bt_audio_codec_cfg_freq {   BT_AUDIO_CODEC_CFG_FREQ_8KHZ = 0x01 , BT_AUDIO_CODEC_CFG_FREQ_11KHZ = 0x02 , BT_AUDIO_CODEC_CFG_FREQ_16KHZ = 0x03 , BT_AUDIO_CODEC_CFG_FREQ_22KHZ = 0x04 ,   BT_AUDIO_CODEC_CFG_FREQ_24KHZ = 0x05 , BT_AUDIO_CODEC_CFG_FREQ_32KHZ = 0x06 , BT_AUDIO_CODEC_CFG_FREQ_44KHZ = 0x07 , BT_AUDIO_CODEC_CFG_FREQ_48KHZ = 0x08 ,   BT_AUDIO_CODEC_CFG_FREQ_88KHZ = 0x09 , BT_AUDIO_CODEC_CFG_FREQ_96KHZ = 0x0a , BT_AUDIO_CODEC_CFG_FREQ_176KHZ = 0x0b , BT_AUDIO_CODEC_CFG_FREQ_192KHZ = 0x0c ,   BT_AUDIO_CODEC_CFG_FREQ_384KHZ = 0x0d }
	Codec configuration sampling freqency. More...
enum	bt_audio_codec_cfg_frame_dur { BT_AUDIO_CODEC_CFG_DURATION_7_5 = 0x00 , BT_AUDIO_CODEC_CFG_DURATION_10 = 0x01 }
	Codec configuration frame duration. More...
enum	bt_audio_context {   BT_AUDIO_CONTEXT_TYPE_NONE = 0 , BT_AUDIO_CONTEXT_TYPE_UNSPECIFIED = BIT(0) , BT_AUDIO_CONTEXT_TYPE_CONVERSATIONAL = BIT(1) , BT_AUDIO_CONTEXT_TYPE_MEDIA = BIT(2) ,   BT_AUDIO_CONTEXT_TYPE_GAME = BIT(3) , BT_AUDIO_CONTEXT_TYPE_INSTRUCTIONAL = BIT(4) , BT_AUDIO_CONTEXT_TYPE_VOICE_ASSISTANTS = BIT(5) , BT_AUDIO_CONTEXT_TYPE_LIVE = BIT(6) ,   BT_AUDIO_CONTEXT_TYPE_SOUND_EFFECTS = BIT(7) , BT_AUDIO_CONTEXT_TYPE_NOTIFICATIONS = BIT(8) , BT_AUDIO_CONTEXT_TYPE_RINGTONE = BIT(9) , BT_AUDIO_CONTEXT_TYPE_ALERTS = BIT(10) ,   BT_AUDIO_CONTEXT_TYPE_EMERGENCY_ALARM = BIT(11) }
	Audio Context Type for Generic Audio. More...
enum	bt_audio_parental_rating {   BT_AUDIO_PARENTAL_RATING_NO_RATING = 0x00 , BT_AUDIO_PARENTAL_RATING_AGE_ANY = 0x01 , BT_AUDIO_PARENTAL_RATING_AGE_5_OR_ABOVE = 0x02 , BT_AUDIO_PARENTAL_RATING_AGE_6_OR_ABOVE = 0x03 ,   BT_AUDIO_PARENTAL_RATING_AGE_7_OR_ABOVE = 0x04 , BT_AUDIO_PARENTAL_RATING_AGE_8_OR_ABOVE = 0x05 , BT_AUDIO_PARENTAL_RATING_AGE_9_OR_ABOVE = 0x06 , BT_AUDIO_PARENTAL_RATING_AGE_10_OR_ABOVE = 0x07 ,   BT_AUDIO_PARENTAL_RATING_AGE_11_OR_ABOVE = 0x08 , BT_AUDIO_PARENTAL_RATING_AGE_12_OR_ABOVE = 0x09 , BT_AUDIO_PARENTAL_RATING_AGE_13_OR_ABOVE = 0x0A , BT_AUDIO_PARENTAL_RATING_AGE_14_OR_ABOVE = 0x0B ,   BT_AUDIO_PARENTAL_RATING_AGE_15_OR_ABOVE = 0x0C , BT_AUDIO_PARENTAL_RATING_AGE_16_OR_ABOVE = 0x0D , BT_AUDIO_PARENTAL_RATING_AGE_17_OR_ABOVE = 0x0E , BT_AUDIO_PARENTAL_RATING_AGE_18_OR_ABOVE = 0x0F }
	Parental rating defined by the Generic Audio assigned numbers (bluetooth.com). More...
enum	bt_audio_active_state { BT_AUDIO_ACTIVE_STATE_DISABLED = 0x00 , BT_AUDIO_ACTIVE_STATE_ENABLED = 0x01 }
	Audio Active State defined by the Generic Audio assigned numbers (bluetooth.com). More...
enum	bt_audio_assisted_listening_stream { BT_AUDIO_ASSISTED_LISTENING_STREAM_UNSPECIFIED = 0x00 }
	Assisted Listening Stream defined by the Generic Audio assigned numbers (bluetooth.com). More...
enum	bt_audio_metadata_type {   BT_AUDIO_METADATA_TYPE_PREF_CONTEXT = 0x01 , BT_AUDIO_METADATA_TYPE_STREAM_CONTEXT = 0x02 , BT_AUDIO_METADATA_TYPE_PROGRAM_INFO = 0x03 , BT_AUDIO_METADATA_TYPE_LANG = 0x04 ,   BT_AUDIO_METADATA_TYPE_CCID_LIST = 0x05 , BT_AUDIO_METADATA_TYPE_PARENTAL_RATING = 0x06 , BT_AUDIO_METADATA_TYPE_PROGRAM_INFO_URI = 0x07 , BT_AUDIO_METADATA_TYPE_AUDIO_STATE = 0x08 ,   BT_AUDIO_METADATA_TYPE_BROADCAST_IMMEDIATE = 0x09 , BT_AUDIO_METADATA_TYPE_ASSISTED_LISTENING_STREAM = 0x0A , BT_AUDIO_METADATA_TYPE_BROADCAST_NAME = 0x0B , BT_AUDIO_METADATA_TYPE_EXTENDED = 0xFE ,   BT_AUDIO_METADATA_TYPE_VENDOR = 0xFF }
	Codec metadata type IDs. More...
enum	bt_audio_location {   BT_AUDIO_LOCATION_MONO_AUDIO = 0 , BT_AUDIO_LOCATION_FRONT_LEFT = BIT(0) , BT_AUDIO_LOCATION_FRONT_RIGHT = BIT(1) , BT_AUDIO_LOCATION_FRONT_CENTER = BIT(2) ,   BT_AUDIO_LOCATION_LOW_FREQ_EFFECTS_1 = BIT(3) , BT_AUDIO_LOCATION_BACK_LEFT = BIT(4) , BT_AUDIO_LOCATION_BACK_RIGHT = BIT(5) , BT_AUDIO_LOCATION_FRONT_LEFT_OF_CENTER = BIT(6) ,   BT_AUDIO_LOCATION_FRONT_RIGHT_OF_CENTER = BIT(7) , BT_AUDIO_LOCATION_BACK_CENTER = BIT(8) , BT_AUDIO_LOCATION_LOW_FREQ_EFFECTS_2 = BIT(9) , BT_AUDIO_LOCATION_SIDE_LEFT = BIT(10) ,   BT_AUDIO_LOCATION_SIDE_RIGHT = BIT(11) , BT_AUDIO_LOCATION_TOP_FRONT_LEFT = BIT(12) , BT_AUDIO_LOCATION_TOP_FRONT_RIGHT = BIT(13) , BT_AUDIO_LOCATION_TOP_FRONT_CENTER = BIT(14) ,   BT_AUDIO_LOCATION_TOP_CENTER = BIT(15) , BT_AUDIO_LOCATION_TOP_BACK_LEFT = BIT(16) , BT_AUDIO_LOCATION_TOP_BACK_RIGHT = BIT(17) , BT_AUDIO_LOCATION_TOP_SIDE_LEFT = BIT(18) ,   BT_AUDIO_LOCATION_TOP_SIDE_RIGHT = BIT(19) , BT_AUDIO_LOCATION_TOP_BACK_CENTER = BIT(20) , BT_AUDIO_LOCATION_BOTTOM_FRONT_CENTER = BIT(21) , BT_AUDIO_LOCATION_BOTTOM_FRONT_LEFT = BIT(22) ,   BT_AUDIO_LOCATION_BOTTOM_FRONT_RIGHT = BIT(23) , BT_AUDIO_LOCATION_FRONT_LEFT_WIDE = BIT(24) , BT_AUDIO_LOCATION_FRONT_RIGHT_WIDE = BIT(25) , BT_AUDIO_LOCATION_LEFT_SURROUND = BIT(26) ,   BT_AUDIO_LOCATION_RIGHT_SURROUND = BIT(27) }
	Location values for BT Audio. More...
enum	bt_audio_codec_cfg_target_latency { BT_AUDIO_CODEC_CFG_TARGET_LATENCY_LOW = 0x01 , BT_AUDIO_CODEC_CFG_TARGET_LATENCY_BALANCED = 0x02 , BT_AUDIO_CODEC_CFG_TARGET_LATENCY_HIGH = 0x03 }
	Codec configuration target latency. More...
enum	bt_audio_codec_cfg_target_phy { BT_AUDIO_CODEC_CFG_TARGET_PHY_1M = 0x01 , BT_AUDIO_CODEC_CFG_TARGET_PHY_2M = 0x02 , BT_AUDIO_CODEC_CFG_TARGET_PHY_CODED = 0x03 }
	Codec configuration target PHY. More...
enum	bt_audio_dir { BT_AUDIO_DIR_SINK = 0x01 , BT_AUDIO_DIR_SOURCE = 0x02 }
	Audio direction from the perspective of the BAP Unicast Server / BAP Broadcast Sink. More...

Functions
int	bt_audio_data_parse (const uint8_t ltv[], size_t size, bool(*func)(struct bt_data *data, void *user_data), void *user_data)
	Helper for parsing length-type-value data.
int	bt_audio_data_get_val (const uint8_t ltv_data[], size_t size, uint8_t type, const uint8_t **data)
	Get the value of a specific data type in an length-type-value data array.
uint8_t	bt_audio_get_chan_count (enum bt_audio_location chan_allocation)
	Function to get the number of channels from the channel allocation.
int	bt_audio_codec_cfg_freq_to_freq_hz (enum bt_audio_codec_cfg_freq freq)
	Convert assigned numbers frequency to frequency value.
int	bt_audio_codec_cfg_freq_hz_to_freq (uint32_t freq_hz)
	Convert frequency value to assigned numbers frequency.
int	bt_audio_codec_cfg_get_freq (const struct bt_audio_codec_cfg *codec_cfg)
	Extract the frequency from a codec configuration.
int	bt_audio_codec_cfg_set_freq (struct bt_audio_codec_cfg *codec_cfg, enum bt_audio_codec_cfg_freq freq)
	Set the frequency of a codec configuration.
int	bt_audio_codec_cfg_frame_dur_to_frame_dur_us (enum bt_audio_codec_cfg_frame_dur frame_dur)
	Convert assigned numbers frame duration to duration in microseconds.
int	bt_audio_codec_cfg_frame_dur_us_to_frame_dur (uint32_t frame_dur_us)
	Convert frame duration in microseconds to assigned numbers frame duration.
int	bt_audio_codec_cfg_get_frame_dur (const struct bt_audio_codec_cfg *codec_cfg)
	Extract frame duration from BT codec config.
int	bt_audio_codec_cfg_set_frame_dur (struct bt_audio_codec_cfg *codec_cfg, enum bt_audio_codec_cfg_frame_dur frame_dur)
	Set the frame duration of a codec configuration.
int	bt_audio_codec_cfg_get_chan_allocation (const struct bt_audio_codec_cfg *codec_cfg, enum bt_audio_location *chan_allocation, bool fallback_to_default)
	Extract channel allocation from BT codec config.
int	bt_audio_codec_cfg_set_chan_allocation (struct bt_audio_codec_cfg *codec_cfg, enum bt_audio_location chan_allocation)
	Set the channel allocation of a codec configuration.
int	bt_audio_codec_cfg_get_octets_per_frame (const struct bt_audio_codec_cfg *codec_cfg)
	Extract frame size in octets from BT codec config.
int	bt_audio_codec_cfg_set_octets_per_frame (struct bt_audio_codec_cfg *codec_cfg, uint16_t octets_per_frame)
	Set the octets per codec frame of a codec configuration.
int	bt_audio_codec_cfg_get_frame_blocks_per_sdu (const struct bt_audio_codec_cfg *codec_cfg, bool fallback_to_default)
	Extract number of audio frame blocks in each SDU from BT codec config.
int	bt_audio_codec_cfg_set_frame_blocks_per_sdu (struct bt_audio_codec_cfg *codec_cfg, uint8_t frame_blocks)
	Set the frame blocks per SDU of a codec configuration.
int	bt_audio_codec_cfg_get_val (const struct bt_audio_codec_cfg *codec_cfg, enum bt_audio_codec_cfg_type type, const uint8_t **data)
	Lookup a specific codec configuration value.
int	bt_audio_codec_cfg_set_val (struct bt_audio_codec_cfg *codec_cfg, enum bt_audio_codec_cfg_type type, const uint8_t *data, size_t data_len)
	Set or add a specific codec configuration value.
int	bt_audio_codec_cfg_unset_val (struct bt_audio_codec_cfg *codec_cfg, enum bt_audio_codec_cfg_type type)
	Unset a specific codec configuration value.
int	bt_audio_codec_cfg_meta_get_val (const struct bt_audio_codec_cfg *codec_cfg, uint8_t type, const uint8_t **data)
	Lookup a specific metadata value based on type.
int	bt_audio_codec_cfg_meta_set_val (struct bt_audio_codec_cfg *codec_cfg, enum bt_audio_metadata_type type, const uint8_t *data, size_t data_len)
	Set or add a specific codec configuration metadata value.
int	bt_audio_codec_cfg_meta_unset_val (struct bt_audio_codec_cfg *codec_cfg, enum bt_audio_metadata_type type)
	Unset a specific codec configuration metadata value.
int	bt_audio_codec_cfg_meta_get_pref_context (const struct bt_audio_codec_cfg *codec_cfg, bool fallback_to_default)
	Extract preferred contexts.
int	bt_audio_codec_cfg_meta_set_pref_context (struct bt_audio_codec_cfg *codec_cfg, enum bt_audio_context ctx)
	Set the preferred context of a codec configuration metadata.
int	bt_audio_codec_cfg_meta_get_stream_context (const struct bt_audio_codec_cfg *codec_cfg)
	Extract stream contexts.
int	bt_audio_codec_cfg_meta_set_stream_context (struct bt_audio_codec_cfg *codec_cfg, enum bt_audio_context ctx)
	Set the stream context of a codec configuration metadata.
int	bt_audio_codec_cfg_meta_get_program_info (const struct bt_audio_codec_cfg *codec_cfg, const uint8_t **program_info)
	Extract program info.
int	bt_audio_codec_cfg_meta_set_program_info (struct bt_audio_codec_cfg *codec_cfg, const uint8_t *program_info, size_t program_info_len)
	Set the program info of a codec configuration metadata.
int	bt_audio_codec_cfg_meta_get_lang (const struct bt_audio_codec_cfg *codec_cfg, const uint8_t **lang)
	Extract language.
int	bt_audio_codec_cfg_meta_set_lang (struct bt_audio_codec_cfg *codec_cfg, const uint8_t lang[3])
	Set the language of a codec configuration metadata.
int	bt_audio_codec_cfg_meta_get_ccid_list (const struct bt_audio_codec_cfg *codec_cfg, const uint8_t **ccid_list)
	Extract CCID list.
int	bt_audio_codec_cfg_meta_set_ccid_list (struct bt_audio_codec_cfg *codec_cfg, const uint8_t *ccid_list, size_t ccid_list_len)
	Set the CCID list of a codec configuration metadata.
int	bt_audio_codec_cfg_meta_get_parental_rating (const struct bt_audio_codec_cfg *codec_cfg)
	Extract parental rating.
int	bt_audio_codec_cfg_meta_set_parental_rating (struct bt_audio_codec_cfg *codec_cfg, enum bt_audio_parental_rating parental_rating)
	Set the parental rating of a codec configuration metadata.
int	bt_audio_codec_cfg_meta_get_program_info_uri (const struct bt_audio_codec_cfg *codec_cfg, const uint8_t **program_info_uri)
	Extract program info URI.
int	bt_audio_codec_cfg_meta_set_program_info_uri (struct bt_audio_codec_cfg *codec_cfg, const uint8_t *program_info_uri, size_t program_info_uri_len)
	Set the program info URI of a codec configuration metadata.
int	bt_audio_codec_cfg_meta_get_audio_active_state (const struct bt_audio_codec_cfg *codec_cfg)
	Extract audio active state.
int	bt_audio_codec_cfg_meta_set_audio_active_state (struct bt_audio_codec_cfg *codec_cfg, enum bt_audio_active_state state)
	Set the audio active state of a codec configuration metadata.
int	bt_audio_codec_cfg_meta_get_bcast_audio_immediate_rend_flag (const struct bt_audio_codec_cfg *codec_cfg)
	Extract broadcast audio immediate rendering flag.
int	bt_audio_codec_cfg_meta_set_bcast_audio_immediate_rend_flag (struct bt_audio_codec_cfg *codec_cfg)
	Set the broadcast audio immediate rendering flag of a codec configuration metadata.
int	bt_audio_codec_cfg_meta_get_assisted_listening_stream (const struct bt_audio_codec_cfg *codec_cfg)
	Extract assisted listening stream.
int	bt_audio_codec_cfg_meta_set_assisted_listening_stream (struct bt_audio_codec_cfg *codec_cfg, enum bt_audio_assisted_listening_stream val)
	Set the assisted listening stream value of a codec configuration metadata.
int	bt_audio_codec_cfg_meta_get_broadcast_name (const struct bt_audio_codec_cfg *codec_cfg, const uint8_t **broadcast_name)
	Extract broadcast name.
int	bt_audio_codec_cfg_meta_set_broadcast_name (struct bt_audio_codec_cfg *codec_cfg, const uint8_t *broadcast_name, size_t broadcast_name_len)
	Set the broadcast name of a codec configuration metadata.
int	bt_audio_codec_cfg_meta_get_extended (const struct bt_audio_codec_cfg *codec_cfg, const uint8_t **extended_meta)
	Extract extended metadata.
int	bt_audio_codec_cfg_meta_set_extended (struct bt_audio_codec_cfg *codec_cfg, const uint8_t *extended_meta, size_t extended_meta_len)
	Set the extended metadata of a codec configuration metadata.
int	bt_audio_codec_cfg_meta_get_vendor (const struct bt_audio_codec_cfg *codec_cfg, const uint8_t **vendor_meta)
	Extract vendor specific metadata.
int	bt_audio_codec_cfg_meta_set_vendor (struct bt_audio_codec_cfg *codec_cfg, const uint8_t *vendor_meta, size_t vendor_meta_len)
	Set the vendor specific metadata of a codec configuration metadata.
int	bt_audio_codec_cap_get_val (const struct bt_audio_codec_cap *codec_cap, enum bt_audio_codec_cap_type type, const uint8_t **data)
	Lookup a specific value based on type.
int	bt_audio_codec_cap_set_val (struct bt_audio_codec_cap *codec_cap, enum bt_audio_codec_cap_type type, const uint8_t *data, size_t data_len)
	Set or add a specific codec capability value.
int	bt_audio_codec_cap_unset_val (struct bt_audio_codec_cap *codec_cap, enum bt_audio_codec_cap_type type)
	Unset a specific codec capability value.
int	bt_audio_codec_cap_get_freq (const struct bt_audio_codec_cap *codec_cap)
	Extract the frequency from a codec capability.
int	bt_audio_codec_cap_set_freq (struct bt_audio_codec_cap *codec_cap, enum bt_audio_codec_cap_freq freq)
	Set the supported frequencies of a codec capability.
int	bt_audio_codec_cap_get_frame_dur (const struct bt_audio_codec_cap *codec_cap)
	Extract the frequency from a codec capability.
int	bt_audio_codec_cap_set_frame_dur (struct bt_audio_codec_cap *codec_cap, enum bt_audio_codec_cap_frame_dur frame_dur)
	Set the frame duration of a codec capability.
int	bt_audio_codec_cap_get_supported_audio_chan_counts (const struct bt_audio_codec_cap *codec_cap, bool fallback_to_default)
	Extract the frequency from a codec capability.
int	bt_audio_codec_cap_set_supported_audio_chan_counts (struct bt_audio_codec_cap *codec_cap, enum bt_audio_codec_cap_chan_count chan_count)
	Set the channel count of a codec capability.
int	bt_audio_codec_cap_get_octets_per_frame (const struct bt_audio_codec_cap *codec_cap, struct bt_audio_codec_octets_per_codec_frame *codec_frame)
	Extract the supported octets per codec frame from a codec capability.
int	bt_audio_codec_cap_set_octets_per_frame (struct bt_audio_codec_cap *codec_cap, const struct bt_audio_codec_octets_per_codec_frame *codec_frame)
	Set the octets per codec frame of a codec capability.
int	bt_audio_codec_cap_get_max_codec_frames_per_sdu (const struct bt_audio_codec_cap *codec_cap, bool fallback_to_default)
	Extract the maximum codec frames per SDU from a codec capability.
int	bt_audio_codec_cap_set_max_codec_frames_per_sdu (struct bt_audio_codec_cap *codec_cap, uint8_t codec_frames_per_sdu)
	Set the maximum codec frames per SDU of a codec capability.
int	bt_audio_codec_cap_meta_get_val (const struct bt_audio_codec_cap *codec_cap, uint8_t type, const uint8_t **data)
	Lookup a specific metadata value based on type.
int	bt_audio_codec_cap_meta_set_val (struct bt_audio_codec_cap *codec_cap, enum bt_audio_metadata_type type, const uint8_t *data, size_t data_len)
	Set or add a specific codec capability metadata value.
int	bt_audio_codec_cap_meta_unset_val (struct bt_audio_codec_cap *codec_cap, enum bt_audio_metadata_type type)
	Unset a specific codec capability metadata value.
int	bt_audio_codec_cap_meta_get_pref_context (const struct bt_audio_codec_cap *codec_cap)
	Extract preferred contexts.
int	bt_audio_codec_cap_meta_set_pref_context (struct bt_audio_codec_cap *codec_cap, enum bt_audio_context ctx)
	Set the preferred context of a codec capability metadata.
int	bt_audio_codec_cap_meta_get_stream_context (const struct bt_audio_codec_cap *codec_cap)
	Extract stream contexts.
int	bt_audio_codec_cap_meta_set_stream_context (struct bt_audio_codec_cap *codec_cap, enum bt_audio_context ctx)
	Set the stream context of a codec capability metadata.
int	bt_audio_codec_cap_meta_get_program_info (const struct bt_audio_codec_cap *codec_cap, const uint8_t **program_info)
	Extract program info.
int	bt_audio_codec_cap_meta_set_program_info (struct bt_audio_codec_cap *codec_cap, const uint8_t *program_info, size_t program_info_len)
	Set the program info of a codec capability metadata.
int	bt_audio_codec_cap_meta_get_lang (const struct bt_audio_codec_cap *codec_cap, const uint8_t **lang)
	Extract language.
int	bt_audio_codec_cap_meta_set_lang (struct bt_audio_codec_cap *codec_cap, const uint8_t lang[3])
	Set the language of a codec capability metadata.
int	bt_audio_codec_cap_meta_get_ccid_list (const struct bt_audio_codec_cap *codec_cap, const uint8_t **ccid_list)
	Extract CCID list.
int	bt_audio_codec_cap_meta_set_ccid_list (struct bt_audio_codec_cap *codec_cap, const uint8_t *ccid_list, size_t ccid_list_len)
	Set the CCID list of a codec capability metadata.
int	bt_audio_codec_cap_meta_get_parental_rating (const struct bt_audio_codec_cap *codec_cap)
	Extract parental rating.
int	bt_audio_codec_cap_meta_set_parental_rating (struct bt_audio_codec_cap *codec_cap, enum bt_audio_parental_rating parental_rating)
	Set the parental rating of a codec capability metadata.
int	bt_audio_codec_cap_meta_get_program_info_uri (const struct bt_audio_codec_cap *codec_cap, const uint8_t **program_info_uri)
	Extract program info URI.
int	bt_audio_codec_cap_meta_set_program_info_uri (struct bt_audio_codec_cap *codec_cap, const uint8_t *program_info_uri, size_t program_info_uri_len)
	Set the program info URI of a codec capability metadata.
int	bt_audio_codec_cap_meta_get_audio_active_state (const struct bt_audio_codec_cap *codec_cap)
	Extract audio active state.
int	bt_audio_codec_cap_meta_set_audio_active_state (struct bt_audio_codec_cap *codec_cap, enum bt_audio_active_state state)
	Set the audio active state of a codec capability metadata.
int	bt_audio_codec_cap_meta_get_bcast_audio_immediate_rend_flag (const struct bt_audio_codec_cap *codec_cap)
	Extract broadcast audio immediate rendering flag.
int	bt_audio_codec_cap_meta_set_bcast_audio_immediate_rend_flag (struct bt_audio_codec_cap *codec_cap)
	Set the broadcast audio immediate rendering flag of a codec capability metadata.
int	bt_audio_codec_cap_meta_get_assisted_listening_stream (const struct bt_audio_codec_cap *codec_cap)
	Extract assisted listening stream.
int	bt_audio_codec_cap_meta_set_assisted_listening_stream (struct bt_audio_codec_cap *codec_cap, enum bt_audio_assisted_listening_stream val)
	Set the assisted listening stream value of a codec capability metadata.
int	bt_audio_codec_cap_meta_get_broadcast_name (const struct bt_audio_codec_cap *codec_cap, const uint8_t **broadcast_name)
	Extract broadcast name.
int	bt_audio_codec_cap_meta_set_broadcast_name (struct bt_audio_codec_cap *codec_cap, const uint8_t *broadcast_name, size_t broadcast_name_len)
	Set the broadcast name of a codec capability metadata.
int	bt_audio_codec_cap_meta_get_extended (const struct bt_audio_codec_cap *codec_cap, const uint8_t **extended_meta)
	Extract extended metadata.
int	bt_audio_codec_cap_meta_set_extended (struct bt_audio_codec_cap *codec_cap, const uint8_t *extended_meta, size_t extended_meta_len)
	Set the extended metadata of a codec capability metadata.
int	bt_audio_codec_cap_meta_get_vendor (const struct bt_audio_codec_cap *codec_cap, const uint8_t **vendor_meta)
	Extract vendor specific metadata.
int	bt_audio_codec_cap_meta_set_vendor (struct bt_audio_codec_cap *codec_cap, const uint8_t *vendor_meta, size_t vendor_meta_len)
	Set the vendor specific metadata of a codec capability metadata.
static char *	bt_audio_context_bit_to_str (enum bt_audio_context context)
	Returns a string representation of a specific bt_audio_context bit.
static char *	bt_audio_parental_rating_to_str (enum bt_audio_parental_rating parental_rating)
	Returns a string representation of a bt_audio_parental_rating value.
static char *	bt_audio_active_state_to_str (enum bt_audio_active_state state)
	Returns a string representation of a bt_audio_active_state value.
static char *	bt_audio_codec_cap_freq_bit_to_str (enum bt_audio_codec_cap_freq freq)
	Returns a string representation of a specific bt_audio_codec_cap_freq bit.
static char *	bt_audio_codec_cap_frame_dur_bit_to_str (enum bt_audio_codec_cap_frame_dur frame_dur)
	Returns a string representation of a specific bt_audio_codec_cap_frame_dur bit.
static char *	bt_audio_codec_cap_chan_count_bit_to_str (enum bt_audio_codec_cap_chan_count chan_count)
	Returns a string representation of a specific bt_audio_codec_cap_chan_count bit.
static char *	bt_audio_location_bit_to_str (enum bt_audio_location location)
	Returns a string representation of a specific bt_audio_location bit.

Detailed Description

Bluetooth Audio handling.