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 * 17 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 20 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BLUEKITCHEN 21 * GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 24 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 27 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 */ 31 32 /** 33 * @title Broadcast Audio Source Endpoint AD Builder 34 */ 35 36 #ifndef BASE_BUILDER_H 37 #define BASE_BUILDER_H 38 39 #include <stdint.h> 40 #include "btstack_lc3.h" 41 42 #if defined __cplusplus 43 extern "C" { 44 #endif 45 46 typedef struct { 47 uint8_t * buffer; 48 uint16_t size; 49 uint16_t len; 50 uint16_t subgroup_offset; 51 uint16_t bis_offset; 52 } base_builder_t; 53 54 /** 55 * Initialize BASE 56 * @param builder 57 * @param buffer to setup BASE 58 * @param size of buffer 59 * @param presentation_delay_us 60 */ 61 void le_audio_base_builder_init(base_builder_t * builder, uint8_t * buffer, uint16_t size, uint32_t presentation_delay_us); 62 63 /** 64 * Add subgroup to current BASE 65 * @param builder 66 * @param codec_id of 5 bytes 67 * @param codec_specific_configuration_length 68 * @param codec_specific_configuration 69 * @param metadata_length 70 * @param metadata 71 */ 72 void le_audio_base_builder_add_subgroup(base_builder_t * builder, 73 const uint8_t * codec_id, 74 uint8_t codec_specific_configuration_length, const uint8_t * codec_specific_configuration, 75 uint8_t metadata_length, const uint8_t * metadata); 76 77 /** 78 * Add BIS to current BASE 79 * @param builder 80 * @param bis_index 81 * @param codec_specific_configuration_length 82 * @param codec_specific_configuration 83 */ 84 void le_audio_base_builder_add_bis(base_builder_t * builder, 85 uint8_t bis_index, 86 uint8_t codec_specific_configuration_length, 87 const uint8_t * codec_specific_configuration); 88 89 /** 90 * Get Size of BASE for Periodic Advertising 91 * @param builder 92 * @return 93 */ 94 uint16_t le_audio_base_builder_get_ad_data_size(const base_builder_t * builder); 95 96 #if defined __cplusplus 97 } 98 #endif 99 100 #endif // BASE_BUILDER_H 101