1 /* 2 * Copyright (C) 2022 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BLUEKITCHEN 24 * GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 /** 39 * @title LE Audio Util 40 * 41 */ 42 43 #ifndef LE_AUDIO_UTIL_H 44 #define LE_AUDIO_UTIL_H 45 46 #include <stdint.h> 47 #include "le_audio.h" 48 #include "btstack_lc3.h" 49 50 #if defined __cplusplus 51 extern "C" { 52 #endif 53 54 uint16_t le_audio_util_virtual_memcpy_helper( 55 const uint8_t * field_data, uint16_t field_len, uint16_t field_offset, 56 uint8_t * buffer, uint16_t buffer_size, uint16_t buffer_offset); 57 58 uint16_t le_audio_util_metadata_virtual_memcpy(const le_audio_metadata_t * metadata, uint8_t metadata_length, uint16_t * records_offset, uint8_t * buffer, uint16_t buffer_size, uint16_t buffer_offset); 59 60 uint16_t le_audio_util_metadata_parse(const uint8_t *buffer, uint8_t buffer_size, le_audio_metadata_t * metadata); 61 62 uint16_t le_audio_util_metadata_serialize(const le_audio_metadata_t *metadata, uint8_t * event, uint16_t event_size); 63 64 uint16_t le_audio_util_metadata_serialize_using_mask(const le_audio_metadata_t *metadata, uint8_t * tlv_buffer, uint16_t tlv_buffer_size); 65 66 void le_audio_util_metadata_using_mask_from_metadata_event(const uint8_t * packet, uint16_t packet_size, le_audio_metadata_t * metadata); 67 void le_audio_util_metadata_using_mask_from_enable_event(const uint8_t * packet, uint16_t packet_size, le_audio_metadata_t * metadata); 68 69 btstack_lc3_frame_duration_t le_audio_util_get_btstack_lc3_frame_duration(le_audio_codec_frame_duration_index_t frame_duration_index); 70 71 uint16_t le_audio_get_frame_duration_us(le_audio_codec_frame_duration_index_t frame_duration_index); 72 le_audio_codec_frame_duration_index_t le_audio_get_frame_duration_index(uint16_t frame_duration_us); 73 74 75 uint32_t le_audio_get_sampling_frequency_hz(le_audio_codec_sampling_frequency_index_t sampling_frequency_index); 76 le_audio_codec_sampling_frequency_index_t le_audio_get_sampling_frequency_index(uint32_t sampling_frequency_hz); 77 78 const le_audio_codec_configuration_t * le_audio_util_get_codec_setting( 79 le_audio_codec_sampling_frequency_index_t sampling_frequency_index, 80 le_audio_codec_frame_duration_index_t frame_duration_index, 81 le_audio_quality_t audio_quality); 82 83 const le_audio_qos_configuration_t * le_audio_util_get_qos_setting( 84 le_audio_codec_sampling_frequency_index_t sampling_frequency_index, 85 le_audio_codec_frame_duration_index_t frame_duration_index, 86 le_audio_quality_t audio_quality, uint8_t num_channels); 87 88 #if defined __cplusplus 89 } 90 #endif 91 92 #endif 93 94