| /** @file |
| * @brief Bluetooth LC3 codec handling |
| */ |
| |
| /* |
| * Copyright (c) 2020 Intel Corporation |
| * Copyright (c) 2022 Nordic Semiconductor ASA |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| #ifndef ZEPHYR_INCLUDE_BLUETOOTH_AUDIO_LC3_H_ |
| #define ZEPHYR_INCLUDE_BLUETOOTH_AUDIO_LC3_H_ |
| |
| /** |
| * @brief LC3 |
| * @defgroup bt_codec_lc3 AUDIO |
| * @ingroup bluetooth |
| * @{ |
| */ |
| |
| #include <zephyr/types.h> |
| #include <zephyr/sys/util_macro.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** |
| * @brief LC3 codec ID |
| */ |
| #define BT_CODEC_LC3_ID 0x06 |
| |
| /** |
| * @brief Codec capability type id's |
| * |
| * Used to build and parse codec capabilities as specified in the PAC specification. |
| * Source is assigned numbers for Generic Audio, bluetooth.com. |
| * |
| * Even though they are in-fixed with LC3 they can be used for other codec types as well. |
| */ |
| enum bt_codec_capability_type { |
| |
| /** |
| * @brief LC3 sample frequency capability type |
| */ |
| BT_CODEC_LC3_FREQ = 0x01, |
| |
| /** |
| * @brief LC3 frame duration capability type |
| */ |
| BT_CODEC_LC3_DURATION = 0x02, |
| |
| /** |
| * @brief LC3 channel count capability type |
| */ |
| BT_CODEC_LC3_CHAN_COUNT = 0x03, |
| |
| /** |
| * @brief LC3 frame length capability type |
| */ |
| BT_CODEC_LC3_FRAME_LEN = 0x04, |
| |
| /** |
| * @brief Max codec frame count per SDU capability type |
| */ |
| BT_CODEC_LC3_FRAME_COUNT = 0x05, |
| }; |
| |
| /** |
| * @brief LC3 8 Khz frequency capability |
| */ |
| #define BT_CODEC_LC3_FREQ_8KHZ BIT(0) |
| /** |
| * @brief LC3 11.025 Khz frequency capability |
| */ |
| #define BT_CODEC_LC3_FREQ_11KHZ BIT(1) |
| /** |
| * @brief LC3 16 Khz frequency capability |
| */ |
| #define BT_CODEC_LC3_FREQ_16KHZ BIT(2) |
| /** |
| * @brief LC3 22.05 Khz frequency capability |
| */ |
| #define BT_CODEC_LC3_FREQ_22KHZ BIT(3) |
| /** |
| * @brief LC3 24 Khz frequency capability |
| */ |
| #define BT_CODEC_LC3_FREQ_24KHZ BIT(4) |
| /** |
| * @brief LC3 32 Khz frequency capability |
| */ |
| #define BT_CODEC_LC3_FREQ_32KHZ BIT(5) |
| /** |
| * @brief LC3 44.1 Khz frequency capability |
| */ |
| #define BT_CODEC_LC3_FREQ_44KHZ BIT(6) |
| /** |
| * @brief LC3 48 Khz frequency capability |
| */ |
| #define BT_CODEC_LC3_FREQ_48KHZ BIT(7) |
| /** |
| * @brief LC3 any frequency capability |
| */ |
| #define BT_CODEC_LC3_FREQ_ANY (BT_CODEC_LC3_FREQ_8KHZ | \ |
| BT_CODEC_LC3_FREQ_16KHZ | \ |
| BT_CODEC_LC3_FREQ_24KHZ | \ |
| BT_CODEC_LC3_FREQ_32KHZ | \ |
| BT_CODEC_LC3_FREQ_44KHZ | \ |
| BT_CODEC_LC3_FREQ_48KHZ) |
| |
| /** |
| * @brief LC3 7.5 msec frame duration capability |
| */ |
| #define BT_CODEC_LC3_DURATION_7_5 BIT(0) |
| /** |
| * @brief LC3 10 msec frame duration capability |
| */ |
| #define BT_CODEC_LC3_DURATION_10 BIT(1) |
| /** |
| * @brief LC3 any frame duration capability |
| */ |
| #define BT_CODEC_LC3_DURATION_ANY (BT_CODEC_LC3_DURATION_7_5 | \ |
| BT_CODEC_LC3_DURATION_10) |
| /** |
| * @brief LC3 7.5 msec preferred frame duration capability |
| */ |
| #define BT_CODEC_LC3_DURATION_PREFER_7_5 BIT(4) |
| /** |
| * @brief LC3 10 msec preferred frame duration capability |
| */ |
| #define BT_CODEC_LC3_DURATION_PREFER_10 BIT(5) |
| |
| /** |
| * @brief LC3 minimum supported channel counts |
| */ |
| #define BT_CODEC_LC3_CHAN_COUNT_MIN 1 |
| /** |
| * @brief LC3 maximum supported channel counts |
| */ |
| #define BT_CODEC_LC3_CHAN_COUNT_MAX 8 |
| /** |
| * @brief LC3 channel count support capability |
| * |
| * Macro accepts variable number of channel counts. |
| * The allowed channel counts are defined by specification and have to be in range from |
| * @ref BT_CODEC_LC3_CHAN_COUNT_MIN to @ref BT_CODEC_LC3_CHAN_COUNT_MAX inclusive. |
| * |
| * Example to support 1 and 3 channels: |
| * BT_CODEC_LC3_CHAN_COUNT_SUPPORT(1, 3) |
| */ |
| #define BT_CODEC_LC3_CHAN_COUNT_SUPPORT(...) ((uint8_t)((FOR_EACH(BIT, (|), __VA_ARGS__)) >> 1)) |
| |
| struct bt_codec_lc3_frame_len { |
| uint16_t min; |
| uint16_t max; |
| }; |
| |
| /** |
| * @brief Codec configuration type IDs |
| * |
| * Used to build and parse codec configurations as specified in the ASCS and BAP specifications. |
| * Source is assigned numbers for Generic Audio, bluetooth.com. |
| * |
| * Even though they are in-fixed with LC3 they can be used for other codec types as well. |
| */ |
| enum bt_codec_config_type { |
| |
| /** @brief LC3 Sample Frequency configuration type. */ |
| BT_CODEC_CONFIG_LC3_FREQ = 0x01, |
| |
| /** @brief LC3 Frame Duration configuration type. */ |
| BT_CODEC_CONFIG_LC3_DURATION = 0x02, |
| |
| /** @brief LC3 channel Allocation configuration type. */ |
| BT_CODEC_CONFIG_LC3_CHAN_ALLOC = 0x03, |
| |
| /** @brief LC3 Frame Length configuration type. */ |
| BT_CODEC_CONFIG_LC3_FRAME_LEN = 0x04, |
| |
| /** @brief Codec frame blocks, per SDU configuration type. */ |
| BT_CODEC_CONFIG_LC3_FRAME_BLKS_PER_SDU = 0x05, |
| }; |
| |
| /** |
| * @brief 8 Khz codec Sample Frequency configuration |
| */ |
| #define BT_CODEC_CONFIG_LC3_FREQ_8KHZ 0x01 |
| /** |
| * @brief 11.025 Khz codec Sample Frequency configuration |
| */ |
| #define BT_CODEC_CONFIG_LC3_FREQ_11KHZ 0x02 |
| /** |
| * @brief 16 Khz codec Sample Frequency configuration |
| */ |
| #define BT_CODEC_CONFIG_LC3_FREQ_16KHZ 0x03 |
| /** |
| * @brief 22.05 Khz codec Sample Frequency configuration |
| */ |
| #define BT_CODEC_CONFIG_LC3_FREQ_22KHZ 0x04 |
| /** |
| * @brief 24 Khz codec Sample Frequency configuration |
| */ |
| #define BT_CODEC_CONFIG_LC3_FREQ_24KHZ 0x05 |
| /** |
| * @brief 32 Khz codec Sample Frequency configuration |
| */ |
| #define BT_CODEC_CONFIG_LC3_FREQ_32KHZ 0x06 |
| /** |
| * @brief 44.1 Khz codec Sample Frequency configuration |
| */ |
| #define BT_CODEC_CONFIG_LC3_FREQ_44KHZ 0x07 |
| /** |
| * @brief 48 Khz codec Sample Frequency configuration |
| */ |
| #define BT_CODEC_CONFIG_LC3_FREQ_48KHZ 0x08 |
| /** |
| * @brief 88.2 Khz codec Sample Frequency configuration |
| */ |
| #define BT_CODEC_CONFIG_LC3_FREQ_88KHZ 0x09 |
| /** |
| * @brief 96 Khz codec Sample Frequency configuration |
| */ |
| #define BT_CODEC_CONFIG_LC3_FREQ_96KHZ 0x0a |
| /** |
| * @brief 176.4 Khz codec Sample Frequency configuration |
| */ |
| #define BT_CODEC_CONFIG_LC3_FREQ_176KHZ 0x0b |
| /** |
| * @brief 192 Khz codec Sample Frequency configuration |
| */ |
| #define BT_CODEC_CONFIG_LC3_FREQ_192KHZ 0x0c |
| /** |
| * @brief 384 Khz codec Sample Frequency configuration |
| */ |
| #define BT_CODEC_CONFIG_LC3_FREQ_384KHZ 0x0d |
| |
| /** |
| * @brief LC3 7.5 msec Frame Duration configuration |
| */ |
| #define BT_CODEC_CONFIG_LC3_DURATION_7_5 0x00 |
| /** |
| * @brief LC3 10 msec Frame Duration configuration |
| */ |
| #define BT_CODEC_CONFIG_LC3_DURATION_10 0x01 |
| |
| |
| /** |
| * @brief Helper to declare LC3 codec capability |
| * |
| * _max_frames_per_sdu value is optional and will be included only if != 1 |
| */ |
| /* COND_CODE_1 is used to omit an LTV entry in case the _frames_per_sdu is 1. |
| * COND_CODE_1 will evaluate to second argument if the flag parameter(first argument) is 1 |
| * - removing one layer of paranteses. |
| * If the flags argument is != 1 it will evaluate to the third argument which inserts a LTV |
| * entry for the max_frames_per_sdu value. |
| */ |
| #define BT_CODEC_LC3_DATA(_freq, _duration, _chan_count, _len_min, _len_max, _max_frames_per_sdu) \ |
| { \ |
| BT_CODEC_DATA(BT_CODEC_LC3_FREQ, \ |
| ((_freq) & 0xFFU), \ |
| (((_freq) >> 8) & 0xFFU)), \ |
| BT_CODEC_DATA(BT_CODEC_LC3_DURATION, _duration), \ |
| BT_CODEC_DATA(BT_CODEC_LC3_CHAN_COUNT, _chan_count), \ |
| BT_CODEC_DATA(BT_CODEC_LC3_FRAME_LEN, \ |
| ((_len_min) & 0xFFU), \ |
| (((_len_min) >> 8) & 0xFFU), \ |
| ((_len_max) & 0xFFU), \ |
| (((_len_max) >> 8) & 0xFFU)) \ |
| COND_CODE_1(_max_frames_per_sdu, (), \ |
| (, BT_CODEC_DATA(BT_CODEC_LC3_FRAME_COUNT, \ |
| _max_frames_per_sdu))) \ |
| } |
| |
| /** |
| * @brief Helper to declare LC3 codec metadata |
| */ |
| #define BT_CODEC_LC3_META(_prefer_context) \ |
| { \ |
| BT_CODEC_DATA(BT_AUDIO_METADATA_TYPE_PREF_CONTEXT, \ |
| ((_prefer_context) & 0xFFU), \ |
| (((_prefer_context) >> 8) & 0xFFU)) \ |
| } |
| |
| /** |
| * @brief Helper to declare LC3 codec |
| */ |
| #define BT_CODEC_LC3(_freq, _duration, _chan_count, _len_min, _len_max, \ |
| _max_frames_per_sdu, _prefer_context) \ |
| BT_CODEC(BT_CODEC_LC3_ID, 0x0000, 0x0000, \ |
| BT_CODEC_LC3_DATA(_freq, _duration, _chan_count, _len_min, \ |
| _len_max, _max_frames_per_sdu), \ |
| BT_CODEC_LC3_META(_prefer_context)) |
| |
| /** |
| * @brief Helper to declare LC3 codec data configuration |
| * |
| * _frame_blocks_per_sdu value is optional and will be included only if != 1 |
| */ |
| /* COND_CODE_1 is used to omit an LTV entry in case the _frames_per_sdu is 1. |
| * COND_CODE_1 will evaluate to second argument if the flag parameter(first argument) is 1 |
| * - removing one layer of paranteses. |
| * If the flags argument is != 1 it will evaluare to the third argument which inserts a LTV |
| * entry for the frames_per_sdu value. |
| */ |
| #define BT_CODEC_LC3_CONFIG_DATA(_freq, _duration, _loc, _len, _frame_blocks_per_sdu) \ |
| { \ |
| BT_CODEC_DATA(BT_CODEC_CONFIG_LC3_FREQ, _freq), \ |
| BT_CODEC_DATA(BT_CODEC_CONFIG_LC3_DURATION, _duration), \ |
| BT_CODEC_DATA(BT_CODEC_CONFIG_LC3_CHAN_ALLOC, \ |
| ((_loc) & 0xFFU), \ |
| (((_loc) >> 8) & 0xFFU), \ |
| (((_loc) >> 16) & 0xFFU), \ |
| (((_loc) >> 24) & 0xFFU)), \ |
| BT_CODEC_DATA(BT_CODEC_CONFIG_LC3_FRAME_LEN, \ |
| ((_len) & 0xFFU), \ |
| (((_len) >> 8) & 0xFFU)) \ |
| COND_CODE_1(_frame_blocks_per_sdu, (), \ |
| (, BT_CODEC_DATA(BT_CODEC_CONFIG_LC3_FRAME_BLKS_PER_SDU, \ |
| _frames_per_sdu))) \ |
| } |
| |
| /** |
| * @brief Helper to declare LC3 codec metadata configuration |
| */ |
| #define BT_CODEC_LC3_CONFIG_META(_stream_context) \ |
| { \ |
| BT_CODEC_DATA(BT_AUDIO_METADATA_TYPE_STREAM_CONTEXT, \ |
| ((_stream_context) & 0xFFU), \ |
| (((_stream_context) >> 8) & 0xFFU)) \ |
| } |
| |
| /** |
| * @brief Helper to declare LC3 codec configuration. |
| * |
| * @param _freq Sampling frequency (BT_CODEC_CONFIG_LC3_FREQ_*) |
| * @param _duration Frame duration (BT_CODEC_CONFIG_LC3_DURATION_*) |
| * @param _loc Audio channel location bitfield (@ref bt_audio_location) |
| * @param _len Octets per frame (16-bit integer) |
| * @param _frames_per_sdu Frames per SDU (8-bit integer) |
| * @param _stream_context Stream context (BT_AUDIO_CONTEXT_*) |
| */ |
| #define BT_CODEC_LC3_CONFIG(_freq, _duration, _loc, _len, _frames_per_sdu, \ |
| _stream_context) \ |
| BT_CODEC(BT_CODEC_LC3_ID, 0x0000, 0x0000, \ |
| BT_CODEC_LC3_CONFIG_DATA(_freq, _duration, _loc, _len, _frames_per_sdu), \ |
| BT_CODEC_LC3_CONFIG_META(_stream_context)) |
| |
| /** |
| * @brief Helper to declare LC3 8.1 codec configuration |
| * |
| * @param _loc Audio channel location bitfield (@ref bt_audio_location) |
| * @param _stream_context Stream context (BT_AUDIO_CONTEXT_*) |
| */ |
| #define BT_CODEC_LC3_CONFIG_8_1(_loc, _stream_context) \ |
| BT_CODEC_LC3_CONFIG(BT_CODEC_CONFIG_LC3_FREQ_8KHZ, \ |
| BT_CODEC_CONFIG_LC3_DURATION_7_5, _loc, 26u, \ |
| 1, _stream_context) |
| /** |
| * @brief Helper to declare LC3 8.2 codec configuration |
| * |
| * @param _loc Audio channel location bitfield (@ref bt_audio_location) |
| * @param _stream_context Stream context (BT_AUDIO_CONTEXT_*) |
| */ |
| #define BT_CODEC_LC3_CONFIG_8_2(_loc, _stream_context) \ |
| BT_CODEC_LC3_CONFIG(BT_CODEC_CONFIG_LC3_FREQ_8KHZ, \ |
| BT_CODEC_CONFIG_LC3_DURATION_10, _loc, 30u, \ |
| 1, _stream_context) |
| /** |
| * @brief Helper to declare LC3 16.1 codec configuration |
| * |
| * @param _loc Audio channel location bitfield (@ref bt_audio_location) |
| * @param _stream_context Stream context (BT_AUDIO_CONTEXT_*) |
| */ |
| #define BT_CODEC_LC3_CONFIG_16_1(_loc, _stream_context) \ |
| BT_CODEC_LC3_CONFIG(BT_CODEC_CONFIG_LC3_FREQ_16KHZ, \ |
| BT_CODEC_CONFIG_LC3_DURATION_7_5, _loc, 30u, \ |
| 1, _stream_context) |
| /** |
| * @brief Helper to declare LC3 16.2 codec configuration |
| * |
| * @param _loc Audio channel location bitfield (@ref bt_audio_location) |
| * @param _stream_context Stream context (BT_AUDIO_CONTEXT_*) |
| */ |
| #define BT_CODEC_LC3_CONFIG_16_2(_loc, _stream_context) \ |
| BT_CODEC_LC3_CONFIG(BT_CODEC_CONFIG_LC3_FREQ_16KHZ, \ |
| BT_CODEC_CONFIG_LC3_DURATION_10, _loc, 40u, \ |
| 1, _stream_context) |
| |
| /** |
| * @brief Helper to declare LC3 24.1 codec configuration |
| * |
| * @param _loc Audio channel location bitfield (@ref bt_audio_location) |
| * @param _stream_context Stream context (BT_AUDIO_CONTEXT_*) |
| */ |
| #define BT_CODEC_LC3_CONFIG_24_1(_loc, _stream_context) \ |
| BT_CODEC_LC3_CONFIG(BT_CODEC_CONFIG_LC3_FREQ_24KHZ, \ |
| BT_CODEC_CONFIG_LC3_DURATION_7_5, _loc, 45u, \ |
| 1, _stream_context) |
| /** |
| * @brief Helper to declare LC3 24.2 codec configuration |
| * |
| * @param _loc Audio channel location bitfield (@ref bt_audio_location) |
| * @param _stream_context Stream context (BT_AUDIO_CONTEXT_*) |
| */ |
| #define BT_CODEC_LC3_CONFIG_24_2(_loc, _stream_context) \ |
| BT_CODEC_LC3_CONFIG(BT_CODEC_CONFIG_LC3_FREQ_24KHZ, \ |
| BT_CODEC_CONFIG_LC3_DURATION_10, _loc, 60u, \ |
| 1, _stream_context) |
| /** |
| * @brief Helper to declare LC3 32.1 codec configuration |
| * |
| * @param _loc Audio channel location bitfield (@ref bt_audio_location) |
| * @param _stream_context Stream context (BT_AUDIO_CONTEXT_*) |
| */ |
| #define BT_CODEC_LC3_CONFIG_32_1(_loc, _stream_context) \ |
| BT_CODEC_LC3_CONFIG(BT_CODEC_CONFIG_LC3_FREQ_32KHZ, \ |
| BT_CODEC_CONFIG_LC3_DURATION_7_5, _loc, 60u, \ |
| 1, _stream_context) |
| /** |
| * @brief Helper to declare LC3 32.2 codec configuration |
| * |
| * @param _loc Audio channel location bitfield (@ref bt_audio_location) |
| * @param _stream_context Stream context (BT_AUDIO_CONTEXT_*) |
| */ |
| #define BT_CODEC_LC3_CONFIG_32_2(_loc, _stream_context) \ |
| BT_CODEC_LC3_CONFIG(BT_CODEC_CONFIG_LC3_FREQ_32KHZ, \ |
| BT_CODEC_CONFIG_LC3_DURATION_10, _loc, 80u, \ |
| 1, _stream_context) |
| /** |
| * @brief Helper to declare LC3 441.1 codec configuration |
| * |
| * @param _loc Audio channel location bitfield (@ref bt_audio_location) |
| * @param _stream_context Stream context (BT_AUDIO_CONTEXT_*) |
| */ |
| #define BT_CODEC_LC3_CONFIG_441_1(_loc, _stream_context) \ |
| BT_CODEC_LC3_CONFIG(BT_CODEC_CONFIG_LC3_FREQ_44KHZ, \ |
| BT_CODEC_CONFIG_LC3_DURATION_7_5, _loc, 98u, \ |
| 1, _stream_context) |
| /** |
| * @brief Helper to declare LC3 441.2 codec configuration |
| * |
| * @param _loc Audio channel location bitfield (@ref bt_audio_location) |
| * @param _stream_context Stream context (BT_AUDIO_CONTEXT_*) |
| */ |
| #define BT_CODEC_LC3_CONFIG_441_2(_loc, _stream_context) \ |
| BT_CODEC_LC3_CONFIG(BT_CODEC_CONFIG_LC3_FREQ_44KHZ, \ |
| BT_CODEC_CONFIG_LC3_DURATION_10, _loc, 130u, \ |
| 1, _stream_context) |
| /** |
| * @brief Helper to declare LC3 48.1 codec configuration |
| * |
| * @param _loc Audio channel location bitfield (@ref bt_audio_location) |
| * @param _stream_context Stream context (BT_AUDIO_CONTEXT_*) |
| */ |
| #define BT_CODEC_LC3_CONFIG_48_1(_loc, _stream_context) \ |
| BT_CODEC_LC3_CONFIG(BT_CODEC_CONFIG_LC3_FREQ_48KHZ, \ |
| BT_CODEC_CONFIG_LC3_DURATION_7_5, _loc, 75u, \ |
| 1, _stream_context) |
| /** |
| * @brief Helper to declare LC3 48.2 codec configuration |
| * |
| * @param _loc Audio channel location bitfield (@ref bt_audio_location) |
| * @param _stream_context Stream context (BT_AUDIO_CONTEXT_*) |
| */ |
| #define BT_CODEC_LC3_CONFIG_48_2(_loc, _stream_context) \ |
| BT_CODEC_LC3_CONFIG(BT_CODEC_CONFIG_LC3_FREQ_48KHZ, \ |
| BT_CODEC_CONFIG_LC3_DURATION_10, _loc, 100u, \ |
| 1, _stream_context) |
| /** |
| * @brief Helper to declare LC3 48.3 codec configuration |
| * |
| * @param _loc Audio channel location bitfield (@ref bt_audio_location) |
| * @param _stream_context Stream context (BT_AUDIO_CONTEXT_*) |
| */ |
| #define BT_CODEC_LC3_CONFIG_48_3(_loc, _stream_context) \ |
| BT_CODEC_LC3_CONFIG(BT_CODEC_CONFIG_LC3_FREQ_48KHZ, \ |
| BT_CODEC_CONFIG_LC3_DURATION_7_5, _loc, 90u, \ |
| 1, _stream_context) |
| /** |
| * @brief Helper to declare LC3 48.4 codec configuration |
| * |
| * @param _loc Audio channel location bitfield (@ref bt_audio_location) |
| * @param _stream_context Stream context (BT_AUDIO_CONTEXT_*) |
| */ |
| #define BT_CODEC_LC3_CONFIG_48_4(_loc, _stream_context) \ |
| BT_CODEC_LC3_CONFIG(BT_CODEC_CONFIG_LC3_FREQ_48KHZ, \ |
| BT_CODEC_CONFIG_LC3_DURATION_10, _loc, 120u, \ |
| 1, _stream_context) |
| /** |
| * @brief Helper to declare LC3 48.5 codec configuration |
| * |
| * @param _loc Audio channel location bitfield (@ref bt_audio_location) |
| * @param _stream_context Stream context (BT_AUDIO_CONTEXT_*) |
| */ |
| #define BT_CODEC_LC3_CONFIG_48_5(_loc, _stream_context) \ |
| BT_CODEC_LC3_CONFIG(BT_CODEC_CONFIG_LC3_FREQ_48KHZ, \ |
| BT_CODEC_CONFIG_LC3_DURATION_7_5, _loc, 117u, \ |
| 1, _stream_context) |
| /** |
| * @brief Helper to declare LC3 48.6 codec configuration |
| * |
| * @param _loc Audio channel location bitfield (@ref bt_audio_location) |
| * @param _stream_context Stream context (BT_AUDIO_CONTEXT_*) |
| */ |
| #define BT_CODEC_LC3_CONFIG_48_6(_loc, _stream_context) \ |
| BT_CODEC_LC3_CONFIG(BT_CODEC_CONFIG_LC3_FREQ_48KHZ, \ |
| BT_CODEC_CONFIG_LC3_DURATION_10, _loc, 155u, \ |
| 1, _stream_context) |
| /** |
| * @brief Helper to declare LC3 codec QoS for 7.5ms interval |
| */ |
| #define BT_CODEC_LC3_QOS_7_5(_framing, _sdu, _rtn, _latency, _pd) \ |
| BT_CODEC_QOS(7500u, _framing, BT_CODEC_QOS_2M, _sdu, _rtn, \ |
| _latency, _pd) |
| /** |
| * @brief Helper to declare LC3 codec QoS for 7.5ms interval unframed input |
| */ |
| #define BT_CODEC_LC3_QOS_7_5_UNFRAMED(_sdu, _rtn, _latency, _pd) \ |
| BT_CODEC_QOS_UNFRAMED(7500u, _sdu, _rtn, _latency, _pd) |
| /** |
| * @brief Helper to declare LC3 codec QoS for 10ms frame internal |
| */ |
| #define BT_CODEC_LC3_QOS_10(_framing, _sdu, _rtn, _latency, _pd) \ |
| BT_CODEC_QOS(10000u, _framing, BT_CODEC_QOS_2M, _sdu, _rtn, \ |
| _latency, _pd) |
| /** |
| * @brief Helper to declare LC3 codec QoS for 10ms interval unframed input |
| */ |
| #define BT_CODEC_LC3_QOS_10_UNFRAMED(_sdu, _rtn, _latency, _pd) \ |
| BT_CODEC_QOS_UNFRAMED(10000u, _sdu, _rtn, _latency, _pd) |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* ZEPHYR_INCLUDE_BLUETOOTH_AUDIO_LC3_H_ */ |
