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 Adapter for Fraunhofer LC3plus Coddec 34 * only uses suitable subset for lc3 testing 35 */ 36 37 #ifndef BTSTACK_LC3PLUS_FRAUNHOFER_H 38 #define BTSTACK_LC3PLUS_FRAUNHOFER_H 39 40 #include <stdint.h> 41 #include "btstack_lc3.h" 42 43 #if defined __cplusplus 44 extern "C" { 45 #endif 46 47 #ifdef HAVE_LC3PLUS 48 49 #include "LC3plus/lc3.h" 50 51 /* API_START */ 52 53 typedef struct { 54 btstack_lc3_frame_duration_t frame_duration; 55 uint16_t octets_per_frame; 56 uint16_t samples_per_frame; 57 uint32_t sample_rate; 58 // decoder must be 4-byte aligned 59 uint8_t decoder[LC3PLUS_DEC_MAX_SIZE]; 60 } btstack_lc3plus_fraunhofer_decoder_t; 61 62 typedef struct { 63 btstack_lc3_frame_duration_t frame_duration; 64 uint16_t octets_per_frame; 65 uint32_t sample_rate; 66 // encoder must be 4-byte aligned 67 uint8_t encoder[LC3PLUS_ENC_MAX_SIZE]; 68 } btstack_lc3plus_fraunhofer_encoder_t; 69 70 /** 71 * Init LC3 Decoder Instance 72 * @param context for Fraunhofer LC3plus decoder 73 */ 74 const btstack_lc3_decoder_t * btstack_lc3plus_fraunhofer_decoder_init_instance(btstack_lc3plus_fraunhofer_decoder_t * context); 75 76 /** 77 * Init LC3 Encoder Instance 78 * @param context for Fraunhofer LC3plus encoder 79 */ 80 const btstack_lc3_encoder_t * btstack_lc3plus_fraunhofer_encoder_init_instance(btstack_lc3plus_fraunhofer_encoder_t * context); 81 82 /* API_END */ 83 84 #endif /* HAVE_LC3PLUS */ 85 86 #if defined __cplusplus 87 } 88 #endif 89 #endif // BTSTACK_LC3_PLUS_FRAUNHOFER_H 90