Zephyr API Documentation  3.7.0
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
22#include <zephyr/sys/util_macro.h>
23#include <zephyr/bluetooth/byteorder.h>
24#include <zephyr/bluetooth/hci_types.h>
25
26#ifdef __cplusplus
27extern "C" {
28#endif
29
48#define BT_AUDIO_CODEC_CAP_LC3_DATA(_freq, _duration, _chan_count, _len_min, _len_max, \
49 _max_frames_per_sdu) \
50 { \
51 BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CAP_TYPE_FREQ, BT_BYTES_LIST_LE16(_freq)), \
52 BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CAP_TYPE_DURATION, (_duration)), \
53 BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CAP_TYPE_CHAN_COUNT, (_chan_count)), \
54 BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CAP_TYPE_FRAME_LEN, \
55 BT_BYTES_LIST_LE16(_len_min), \
56 BT_BYTES_LIST_LE16(_len_max)), \
57 COND_CODE_1(_max_frames_per_sdu, (), \
58 (BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CAP_TYPE_FRAME_COUNT, \
59 (_max_frames_per_sdu)))) \
60 }
61
67#define BT_AUDIO_CODEC_CAP_LC3_META(_prefer_context) \
68 { \
69 BT_AUDIO_CODEC_DATA(BT_AUDIO_METADATA_TYPE_PREF_CONTEXT, \
70 BT_BYTES_LIST_LE16(_prefer_context)) \
71 }
72
84#define BT_AUDIO_CODEC_CAP_LC3(_freq, _duration, _chan_count, _len_min, _len_max, \
85 _max_frames_per_sdu, _prefer_context) \
86 BT_AUDIO_CODEC_CAP(BT_HCI_CODING_FORMAT_LC3, 0x0000, 0x0000, \
87 BT_AUDIO_CODEC_CAP_LC3_DATA(_freq, _duration, _chan_count, _len_min, \
88 _len_max, _max_frames_per_sdu), \
89 BT_AUDIO_CODEC_CAP_LC3_META(_prefer_context))
90
101#define BT_AUDIO_CODEC_CFG_LC3_DATA(_freq, _duration, _loc, _len, _frames_per_sdu) \
102 { \
103 BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CFG_FREQ, (_freq)), \
104 BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CFG_DURATION, (_duration)), \
105 BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CFG_CHAN_ALLOC, BT_BYTES_LIST_LE32(_loc)), \
106 BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CFG_FRAME_LEN, BT_BYTES_LIST_LE16(_len)), \
107 COND_CODE_1(_frames_per_sdu, (), \
108 (BT_AUDIO_CODEC_DATA(BT_AUDIO_CODEC_CFG_FRAME_BLKS_PER_SDU, \
109 (_frames_per_sdu)))) \
110 }
111
113#define BT_AUDIO_CODEC_CFG_LC3_META(_stream_context) \
114 { \
115 BT_AUDIO_CODEC_DATA(BT_AUDIO_METADATA_TYPE_STREAM_CONTEXT, \
116 BT_BYTES_LIST_LE16(_stream_context)) \
117 }
118
129#define BT_AUDIO_CODEC_LC3_CONFIG(_freq, _duration, _loc, _len, _frames_per_sdu, _stream_context) \
130 BT_AUDIO_CODEC_CFG( \
131 BT_HCI_CODING_FORMAT_LC3, 0x0000, 0x0000, \
132 BT_AUDIO_CODEC_CFG_LC3_DATA(_freq, _duration, _loc, _len, _frames_per_sdu), \
133 BT_AUDIO_CODEC_CFG_LC3_META(_stream_context))
134
135#ifdef __cplusplus
136}
137#endif
138
143#endif /* ZEPHYR_INCLUDE_BLUETOOTH_AUDIO_LC3_H_ */
byteorder.h
Bluetooth byteorder API.
hci_types.h
util_macro.h
Macro utilities.