audio.h

Go to the documentation of this file.

 
/*
 * Copyright (c) 2020 Intel Corporation
 * Copyright (c) 2020-2023 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: Apache-2.0
 */
#ifndef ZEPHYR_INCLUDE_BLUETOOTH_AUDIO_AUDIO_H_
#define ZEPHYR_INCLUDE_BLUETOOTH_AUDIO_AUDIO_H_
 
#include <zephyr/sys/atomic.h>
#include <zephyr/bluetooth/buf.h>
#include <zephyr/bluetooth/conn.h>
#include <zephyr/bluetooth/hci.h>
#include <zephyr/bluetooth/iso.h>
#include <zephyr/bluetooth/gatt.h>
#include <zephyr/bluetooth/audio/lc3.h>
 
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define BT_AUDIO_BROADCAST_ID_SIZE               3 /* octets */
#define BT_AUDIO_BROADCAST_ID_MAX                0xFFFFFFU
#define BT_AUDIO_PD_PREF_NONE                    0x000000U
#define BT_AUDIO_PD_MAX                          0xFFFFFFU
 
#define BT_AUDIO_BROADCAST_CODE_SIZE             16
 
enum bt_audio_context {
        BT_AUDIO_CONTEXT_TYPE_PROHIBITED = 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),
};
 
#define BT_AUDIO_CONTEXT_TYPE_ANY        (BT_AUDIO_CONTEXT_TYPE_UNSPECIFIED | \
                                          BT_AUDIO_CONTEXT_TYPE_CONVERSATIONAL | \
                                          BT_AUDIO_CONTEXT_TYPE_MEDIA | \
                                          BT_AUDIO_CONTEXT_TYPE_GAME | \
                                          BT_AUDIO_CONTEXT_TYPE_INSTRUCTIONAL | \
                                          BT_AUDIO_CONTEXT_TYPE_VOICE_ASSISTANTS | \
                                          BT_AUDIO_CONTEXT_TYPE_LIVE | \
                                          BT_AUDIO_CONTEXT_TYPE_SOUND_EFFECTS | \
                                          BT_AUDIO_CONTEXT_TYPE_NOTIFICATIONS | \
                                          BT_AUDIO_CONTEXT_TYPE_RINGTONE | \
                                          BT_AUDIO_CONTEXT_TYPE_ALERTS | \
                                          BT_AUDIO_CONTEXT_TYPE_EMERGENCY_ALARM)
 
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
};
 
enum bt_audio_active_state {
        BT_AUDIO_ACTIVE_STATE_DISABLED       = 0x00,
        BT_AUDIO_ACTIVE_STATE_ENABLED        = 0x01,
};
 
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_STREAM_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_EXTENDED            = 0xFE,
 
        BT_AUDIO_METADATA_TYPE_VENDOR              = 0xFF,
};
 
#define BT_AUDIO_METADATA_TYPE_IS_KNOWN(_type) \
        (IN_RANGE(_type, BT_AUDIO_METADATA_TYPE_PREF_CONTEXT, \
                         BT_AUDIO_METADATA_TYPE_BROADCAST_IMMEDIATE) || \
         IN_RANGE(_type, BT_AUDIO_METADATA_TYPE_EXTENDED, BT_AUDIO_METADATA_TYPE_VENDOR))
 
/* Unicast Announcement Type, Generic Audio */
#define BT_AUDIO_UNICAST_ANNOUNCEMENT_GENERAL    0x00
#define BT_AUDIO_UNICAST_ANNOUNCEMENT_TARGETED   0x01
 
#define BT_AUDIO_CODEC_DATA(_type, _bytes...)                                                      \
        (sizeof((uint8_t)_type) + sizeof((uint8_t[]){_bytes})), (_type), _bytes
 
#define BT_AUDIO_CODEC_CFG(_id, _cid, _vid, _data, _meta)                                          \
        ((struct bt_audio_codec_cfg){                                                              \
                /* Use HCI data path as default, can be overwritten by application */              \
                .path_id = BT_ISO_DATA_PATH_HCI,                                                   \
                .id = _id,                                                                         \
                .cid = _cid,                                                                       \
                .vid = _vid,                                                                       \
                .data_len = sizeof((uint8_t[])_data),                                              \
                .data = _data,                                                                     \
                .meta_len = sizeof((uint8_t[])_meta),                                              \
                .meta = _meta,                                                                     \
        })
 
#define BT_AUDIO_CODEC_CAP(_id, _cid, _vid, _data, _meta)                                          \
        ((struct bt_audio_codec_cap){                                                              \
                /* Use HCI data path as default, can be overwritten by application */              \
                .path_id = BT_ISO_DATA_PATH_HCI,                                                   \
                .id = (_id),                                                                       \
                .cid = (_cid),                                                                     \
                .vid = (_vid),                                                                     \
                .data_len = sizeof((uint8_t[])_data),                                              \
                .data = _data,                                                                     \
                .meta_len = sizeof((uint8_t[])_meta),                                              \
                .meta = _meta,                                                                     \
        })
 
enum bt_audio_location {
        BT_AUDIO_LOCATION_PROHIBITED = 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),
};
 
#define BT_AUDIO_LOCATION_ANY (BT_AUDIO_LOCATION_FRONT_LEFT | \
                               BT_AUDIO_LOCATION_FRONT_RIGHT | \
                               BT_AUDIO_LOCATION_FRONT_CENTER | \
                               BT_AUDIO_LOCATION_LOW_FREQ_EFFECTS_1 | \
                               BT_AUDIO_LOCATION_BACK_LEFT | \
                               BT_AUDIO_LOCATION_BACK_RIGHT | \
                               BT_AUDIO_LOCATION_FRONT_LEFT_OF_CENTER | \
                               BT_AUDIO_LOCATION_FRONT_RIGHT_OF_CENTER | \
                               BT_AUDIO_LOCATION_BACK_CENTER | \
                               BT_AUDIO_LOCATION_LOW_FREQ_EFFECTS_2 | \
                               BT_AUDIO_LOCATION_SIDE_LEFT | \
                               BT_AUDIO_LOCATION_SIDE_RIGHT | \
                               BT_AUDIO_LOCATION_TOP_FRONT_LEFT | \
                               BT_AUDIO_LOCATION_TOP_FRONT_RIGHT | \
                               BT_AUDIO_LOCATION_TOP_FRONT_CENTER | \
                               BT_AUDIO_LOCATION_TOP_CENTER | \
                               BT_AUDIO_LOCATION_TOP_BACK_LEFT | \
                               BT_AUDIO_LOCATION_TOP_BACK_RIGHT | \
                               BT_AUDIO_LOCATION_TOP_SIDE_LEFT | \
                               BT_AUDIO_LOCATION_TOP_SIDE_RIGHT | \
                               BT_AUDIO_LOCATION_TOP_BACK_CENTER | \
                               BT_AUDIO_LOCATION_BOTTOM_FRONT_CENTER | \
                               BT_AUDIO_LOCATION_BOTTOM_FRONT_LEFT | \
                               BT_AUDIO_LOCATION_BOTTOM_FRONT_RIGHT | \
                               BT_AUDIO_LOCATION_FRONT_LEFT_WIDE | \
                               BT_AUDIO_LOCATION_FRONT_RIGHT_WIDE | \
                               BT_AUDIO_LOCATION_LEFT_SURROUND | \
                               BT_AUDIO_LOCATION_RIGHT_SURROUND)
 
struct bt_audio_codec_cap {
        uint8_t path_id;
        uint8_t id;
        uint16_t cid;
        uint16_t vid;
#if CONFIG_BT_AUDIO_CODEC_CAP_MAX_DATA_SIZE > 0
        size_t data_len;
        uint8_t data[CONFIG_BT_AUDIO_CODEC_CAP_MAX_DATA_SIZE];
#endif /* CONFIG_BT_AUDIO_CODEC_CAP_MAX_DATA_SIZE > 0 */
#if defined(CONFIG_BT_AUDIO_CODEC_CAP_MAX_METADATA_SIZE)
        size_t meta_len;
        uint8_t meta[CONFIG_BT_AUDIO_CODEC_CAP_MAX_METADATA_SIZE];
#endif /* CONFIG_BT_AUDIO_CODEC_CAP_MAX_METADATA_SIZE */
};
 
struct bt_audio_codec_cfg {
        uint8_t path_id;
        uint8_t  id;
        uint16_t cid;
        uint16_t vid;
#if CONFIG_BT_AUDIO_CODEC_CFG_MAX_DATA_SIZE > 0
        size_t data_len;
        uint8_t data[CONFIG_BT_AUDIO_CODEC_CFG_MAX_DATA_SIZE];
#endif /* CONFIG_BT_AUDIO_CODEC_CFG_MAX_DATA_SIZE > 0 */
#if CONFIG_BT_AUDIO_CODEC_CFG_MAX_METADATA_SIZE > 0
        size_t meta_len;
        uint8_t meta[CONFIG_BT_AUDIO_CODEC_CFG_MAX_METADATA_SIZE];
#endif /* CONFIG_BT_AUDIO_CODEC_CFG_MAX_METADATA_SIZE > 0 */
};
 
int bt_audio_data_parse(const uint8_t ltv[], size_t size,
                        bool (*func)(struct bt_data *data, void *user_data), void *user_data);
 
enum bt_audio_dir {
        BT_AUDIO_DIR_SINK = 0x01,
        BT_AUDIO_DIR_SOURCE = 0x02,
};
 
#define BT_AUDIO_CODEC_QOS(_interval, _framing, _phy, _sdu, _rtn, _latency, _pd)                   \
        ((struct bt_audio_codec_qos){                                                              \
                .interval = _interval,                                                             \
                .framing = _framing,                                                               \
                .phy = _phy,                                                                       \
                .sdu = _sdu,                                                                       \
                .rtn = _rtn,                                                                       \
                .latency = _latency,                                                               \
                .pd = _pd,                                                                         \
        })
 
enum bt_audio_codec_qos_framing {
        BT_AUDIO_CODEC_QOS_FRAMING_UNFRAMED = 0x00,
        BT_AUDIO_CODEC_QOS_FRAMING_FRAMED = 0x01,
};
 
enum {
        BT_AUDIO_CODEC_QOS_1M = BIT(0),
        BT_AUDIO_CODEC_QOS_2M = BIT(1),
        BT_AUDIO_CODEC_QOS_CODED = BIT(2),
};
 
#define BT_AUDIO_CODEC_QOS_UNFRAMED(_interval, _sdu, _rtn, _latency, _pd)                          \
        BT_AUDIO_CODEC_QOS(_interval, BT_AUDIO_CODEC_QOS_FRAMING_UNFRAMED, BT_AUDIO_CODEC_QOS_2M,  \
                           _sdu, _rtn, _latency, _pd)
 
#define BT_AUDIO_CODEC_QOS_FRAMED(_interval, _sdu, _rtn, _latency, _pd)                            \
        BT_AUDIO_CODEC_QOS(_interval, BT_AUDIO_CODEC_QOS_FRAMING_FRAMED, BT_AUDIO_CODEC_QOS_2M,    \
                           _sdu, _rtn, _latency, _pd)
 
struct bt_audio_codec_qos {
        uint8_t  phy;
 
        enum bt_audio_codec_qos_framing framing;
 
        uint8_t rtn;
 
        uint16_t sdu;
 
#if defined(CONFIG_BT_BAP_BROADCAST_SOURCE) || defined(CONFIG_BT_BAP_UNICAST)
        uint16_t latency;
#endif /*  CONFIG_BT_BAP_BROADCAST_SOURCE || CONFIG_BT_BAP_UNICAST */
 
        uint32_t interval;
 
        uint32_t pd;
};
 
#define BT_AUDIO_CODEC_QOS_PREF(_unframed_supported, _phy, _rtn, _latency, _pd_min, _pd_max,       \
                                _pref_pd_min, _pref_pd_max)                                        \
        {                                                                                          \
                .unframed_supported = _unframed_supported,                                         \
                .phy = _phy,                                                                       \
                .rtn = _rtn,                                                                       \
                .latency = _latency,                                                               \
                .pd_min = _pd_min,                                                                 \
                .pd_max = _pd_max,                                                                 \
                .pref_pd_min = _pref_pd_min,                                                       \
                .pref_pd_max = _pref_pd_max,                                                       \
        }
 
struct bt_audio_codec_qos_pref {
        bool unframed_supported;
 
        uint8_t phy;
 
        uint8_t rtn;
 
        uint16_t latency;
 
        uint32_t pd_min;
 
        uint32_t pd_max;
 
        uint32_t pref_pd_min;
 
        uint32_t pref_pd_max;
};
 
int bt_audio_codec_cfg_freq_to_freq_hz(enum bt_audio_codec_config_freq freq);
 
int bt_audio_codec_cfg_freq_hz_to_freq(uint32_t freq_hz);
 
int bt_audio_codec_cfg_get_freq(const struct bt_audio_codec_cfg *codec_cfg);
 
int bt_audio_codec_cfg_set_freq(struct bt_audio_codec_cfg *codec_cfg,
                                enum bt_audio_codec_config_freq freq);
 
int bt_audio_codec_cfg_get_frame_duration_us(const struct bt_audio_codec_cfg *codec_cfg);
 
int bt_audio_codec_cfg_get_chan_allocation(const struct bt_audio_codec_cfg *codec_cfg,
                                           enum bt_audio_location *chan_allocation);
 
int bt_audio_codec_cfg_set_chan_allocation(struct bt_audio_codec_cfg *codec_cfg,
                                           enum bt_audio_location chan_allocation);
 
int bt_audio_codec_cfg_get_octets_per_frame(const struct bt_audio_codec_cfg *codec_cfg);
 
int bt_audio_codec_cfg_set_octets_per_frame(struct bt_audio_codec_cfg *codec_cfg,
                                            uint16_t octets_per_frame);
 
int bt_audio_codec_cfg_get_frame_blocks_per_sdu(const struct bt_audio_codec_cfg *codec_cfg,
                                                bool fallback_to_default);
 
int bt_audio_codec_cfg_set_frame_blocks_per_sdu(struct bt_audio_codec_cfg *codec_cfg,
                                                uint8_t frame_blocks);
 
uint8_t bt_audio_codec_cfg_get_val(const struct bt_audio_codec_cfg *codec_cfg, uint8_t type,
                                   const uint8_t **data);
 
int bt_audio_codec_cfg_set_val(struct bt_audio_codec_cfg *codec_cfg, uint8_t type,
                               const uint8_t *data, size_t data_len);
 
int bt_audio_codec_cfg_meta_get_val(const struct bt_audio_codec_cfg *codec_cfg, uint8_t type,
                                    const uint8_t **data);
 
int bt_audio_codec_cfg_meta_get_pref_context(const struct bt_audio_codec_cfg *codec_cfg);
 
int bt_audio_codec_cfg_meta_get_stream_context(const struct bt_audio_codec_cfg *codec_cfg);
 
int bt_audio_codec_cfg_meta_get_program_info(const struct bt_audio_codec_cfg *codec_cfg,
                                             const uint8_t **program_info);
 
int bt_audio_codec_cfg_meta_get_stream_lang(const struct bt_audio_codec_cfg *codec_cfg);
 
int bt_audio_codec_cfg_meta_get_ccid_list(const struct bt_audio_codec_cfg *codec_cfg,
                                          const uint8_t **ccid_list);
 
int bt_audio_codec_cfg_meta_get_parental_rating(const struct bt_audio_codec_cfg *codec_cfg);
 
int bt_audio_codec_cfg_meta_get_program_info_uri(const struct bt_audio_codec_cfg *codec_cfg,
                                                 const uint8_t **program_info_uri);
 
int bt_audio_codec_cfg_meta_get_audio_active_state(const struct bt_audio_codec_cfg *codec_cfg);
 
int bt_audio_codec_cfg_meta_get_bcast_audio_immediate_rend_flag(
        const struct bt_audio_codec_cfg *codec_cfg);
 
int bt_audio_codec_cfg_meta_get_extended(const struct bt_audio_codec_cfg *codec_cfg,
                                         const uint8_t **extended_meta);
 
int bt_audio_codec_cfg_meta_get_vendor(const struct bt_audio_codec_cfg *codec_cfg,
                                       const uint8_t **vendor_meta); /* End of bt_audio_codec_cfg */
 
uint8_t bt_audio_codec_cap_get_val(const struct bt_audio_codec_cap *codec_cap, uint8_t type,
                                   const uint8_t **data);
 
int bt_audio_codec_cap_get_freq(const struct bt_audio_codec_cap *codec_cap);
 
int bt_audio_codec_cap_get_frame_duration(const struct bt_audio_codec_cap *codec_cap);
 
int bt_audio_codec_cap_get_supported_audio_chan_counts(const struct bt_audio_codec_cap *codec_cap);
 
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);
 
int bt_audio_codec_cap_get_max_codec_frames_per_sdu(const struct bt_audio_codec_cap *codec_cap);
 
int bt_audio_codec_cap_meta_get_val(const struct bt_audio_codec_cap *codec_cap, uint8_t type,
                                    const uint8_t **data);
 
int bt_audio_codec_cap_meta_get_pref_context(const struct bt_audio_codec_cap *codec_cap);
 
int bt_audio_codec_cap_meta_get_stream_context(const struct bt_audio_codec_cap *codec_cap);
 
int bt_audio_codec_cap_meta_get_program_info(const struct bt_audio_codec_cap *codec_cap,
                                             const uint8_t **program_info);
 
int bt_audio_codec_cap_meta_get_stream_lang(const struct bt_audio_codec_cap *codec_cap);
 
int bt_audio_codec_cap_meta_get_ccid_list(const struct bt_audio_codec_cap *codec_cap,
                                          const uint8_t **ccid_list);
 
int bt_audio_codec_cap_meta_get_parental_rating(const struct bt_audio_codec_cap *codec_cap);
 
int bt_audio_codec_cap_meta_get_program_info_uri(const struct bt_audio_codec_cap *codec_cap,
                                                 const uint8_t **program_info_uri);
 
int bt_audio_codec_cap_meta_get_audio_active_state(const struct bt_audio_codec_cap *codec_cap);
 
int bt_audio_codec_cap_meta_get_bcast_audio_immediate_rend_flag(
        const struct bt_audio_codec_cap *codec_cap);
 
int bt_audio_codec_cap_meta_get_extended(const struct bt_audio_codec_cap *codec_cap,
                                         const uint8_t **extended_meta);
 
int bt_audio_codec_cap_meta_get_vendor(const struct bt_audio_codec_cap *codec_cap,
                                       const uint8_t **vendor_meta); /* End of bt_audio_codec_cap */
 
#ifdef __cplusplus
}
#endif
 /* end of bt_audio */
 
#endif /* ZEPHYR_INCLUDE_BLUETOOTH_AUDIO_H_ */