Zephyr API Documentation 4.0.0-rc3
A Scalable Open Source RTOS
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lc3.h
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1
6/*
7 * Copyright (c) 2020 Intel Corporation
8 * Copyright (c) 2022-2024 Nordic Semiconductor ASA
9 *
10 * SPDX-License-Identifier: Apache-2.0
11 */
12#ifndef ZEPHYR_INCLUDE_BLUETOOTH_AUDIO_LC3_H_
13#define ZEPHYR_INCLUDE_BLUETOOTH_AUDIO_LC3_H_
14
26#include <zephyr/sys/util_macro.h>
27#include <zephyr/bluetooth/byteorder.h>
28#include <zephyr/bluetooth/hci_types.h>
29
30#ifdef __cplusplus
31extern "C" {
32#endif
33
52#define BT_AUDIO_CODEC_CAP_LC3_DATA(_freq, _duration, _chan_count, _len_min, _len_max, \
53 _max_frames_per_sdu) \
54 { \
55 BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CAP_TYPE_FREQ, BT_BYTES_LIST_LE16(_freq)), \
56 BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CAP_TYPE_DURATION, (_duration)), \
57 BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CAP_TYPE_CHAN_COUNT, (_chan_count)), \
58 BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CAP_TYPE_FRAME_LEN, \
59 BT_BYTES_LIST_LE16(_len_min), \
60 BT_BYTES_LIST_LE16(_len_max)), \
61 COND_CODE_1(_max_frames_per_sdu, (), \
62 (BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CAP_TYPE_FRAME_COUNT, \
63 (_max_frames_per_sdu)))) \
64 }
65
71#define BT_AUDIO_CODEC_CAP_LC3_META(_prefer_context) \
72 { \
73 BT_AUDIO_CODEC_DATA(BT_AUDIO_METADATA_TYPE_PREF_CONTEXT, \
74 BT_BYTES_LIST_LE16(_prefer_context)) \
75 }
76
88#define BT_AUDIO_CODEC_CAP_LC3(_freq, _duration, _chan_count, _len_min, _len_max, \
89 _max_frames_per_sdu, _prefer_context) \
90 BT_AUDIO_CODEC_CAP(BT_HCI_CODING_FORMAT_LC3, 0x0000, 0x0000, \
91 BT_AUDIO_CODEC_CAP_LC3_DATA(_freq, _duration, _chan_count, _len_min, \
92 _len_max, _max_frames_per_sdu), \
93 BT_AUDIO_CODEC_CAP_LC3_META(_prefer_context))
94
105#define BT_AUDIO_CODEC_CFG_LC3_DATA(_freq, _duration, _loc, _len, _frames_per_sdu) \
106 { \
107 BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CFG_FREQ, (_freq)), \
108 BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CFG_DURATION, (_duration)), \
109 BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CFG_CHAN_ALLOC, BT_BYTES_LIST_LE32(_loc)), \
110 BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CFG_FRAME_LEN, BT_BYTES_LIST_LE16(_len)), \
111 COND_CODE_1(_frames_per_sdu, (), \
112 (BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CFG_FRAME_BLKS_PER_SDU, \
113 (_frames_per_sdu)))) \
114 }
115
117#define BT_AUDIO_CODEC_CFG_LC3_META(_stream_context) \
118 { \
119 BT_AUDIO_CODEC_DATA(BT_AUDIO_METADATA_TYPE_STREAM_CONTEXT, \
120 BT_BYTES_LIST_LE16(_stream_context)) \
121 }
122
133#define BT_AUDIO_CODEC_LC3_CONFIG(_freq, _duration, _loc, _len, _frames_per_sdu, _stream_context) \
134 BT_AUDIO_CODEC_CFG( \
135 BT_HCI_CODING_FORMAT_LC3, 0x0000, 0x0000, \
136 BT_AUDIO_CODEC_CFG_LC3_DATA(_freq, _duration, _loc, _len, _frames_per_sdu), \
137 BT_AUDIO_CODEC_CFG_LC3_META(_stream_context))
138
139#ifdef __cplusplus
140}
141#endif
142
147#endif /* ZEPHYR_INCLUDE_BLUETOOTH_AUDIO_LC3_H_ */
byteorder.h
Bluetooth byteorder API.
hci_types.h
util_macro.h
Macro utilities.