/* * Copyright (C) 2022 BlueKitchen GmbH * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the copyright holders nor the names of * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BLUEKITCHEN * GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ /** * @title Broadcast Audio Source Endpoint AD Parser */ #ifndef LE_AUDIO_BASE_PARSER_H #define LE_AUDIO_BASE_PARSER_H #include #if defined __cplusplus extern "C" { #endif typedef struct { const uint8_t * buffer; uint16_t size; uint8_t subgroup_index; uint8_t subgroup_count; uint16_t subgroup_offset; uint8_t subgroup_codec_specific_configuration_len; uint8_t subgroup_metadata_len; uint8_t bis_index; uint8_t bis_count; uint16_t bis_offset; } le_audio_base_parser_t; /** * Initialize BASE * @param parser * @param buffer to setup BASE * @param size of buffer * @param presentation_delay_us * @return valid BASE struct found */ bool le_audio_base_parser_init(le_audio_base_parser_t * parser, const uint8_t * buffer, uint16_t size); /** * Get number of subgroups in BASE * @param parser * @return */ uint8_t le_audio_base_parser_get_num_subgroups(le_audio_base_parser_t * parser); /** * Get Pressentation Delay in us * @param parser * @return */ uint32_t le_audio_base_parser_get_presentation_delay(le_audio_base_parser_t * parser); /** * Get Num BIS for current subgroup * @param parser * @return */ uint8_t le_audio_base_parser_subgroup_get_num_bis(le_audio_base_parser_t * parser); /** * Get Codec ID for current subgroup * @param parser * @return true if successful */ const uint8_t * le_audio_base_parser_subgroup_get_codec_id(le_audio_base_parser_t * parser); /** * Get Codec Specific Configuration Length for current subgroup * @param parser * @return */ uint8_t le_audio_base_parser_subgroup_get_codec_specific_configuration_length(le_audio_base_parser_t * parser); /** * Get Codec Specific Configuration for current subgroup * @param parser * @return */ const uint8_t * le_audio_base_parser_subgroup_get_codec_specific_configuration(le_audio_base_parser_t * parser); /** * Get Metadata Length for current subgroup * @param parser * @return */ uint8_t le_audio_base_parser_subgroup_get_metadata_length(le_audio_base_parser_t * parser); /** * Get Metadata for current subgroup * @param parser * @return */ const uint8_t * le_audio_base_subgroup_parser_get_metadata(le_audio_base_parser_t * parser); /** * Process next subgroup * @param parser */ void le_audio_base_parser_subgroup_next(le_audio_base_parser_t * parser); /** * Get BIS Index for current BIS * @param parser * @return */ uint8_t le_audio_base_parser_bis_get_index(le_audio_base_parser_t * parser); /** * Get Codec Specific Configuration Length for current BIS * @param parser * @return */ uint8_t le_audio_base_parser_bis_get_codec_specific_configuration_length(le_audio_base_parser_t * parser); /** * Get Codec Specific Configuration for current BIS * @param parser * @return */ const uint8_t * le_audio_base_bis_parser_get_codec_specific_configuration(le_audio_base_parser_t * parser); /** * Process next BIS * @param parser */ void le_audio_base_parser_bis_next(le_audio_base_parser_t * parser); #if defined __cplusplus } #endif #endif // BASE_BUILDER_H