1 /* 2 * Copyright (C) 2023 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 * @brief Adapter for Bluedroid SBC implementation 40 */ 41 42 #ifndef BTSTACK_SBC_BLUEDROID_H 43 #define BTSTACK_SBC_BLUEDROID_H 44 45 #include "sbc_encoder.h" 46 #include "oi_codec_sbc.h" 47 48 #include "classic/btstack_sbc.h" 49 50 #if defined __cplusplus 51 extern "C" { 52 #endif 53 54 typedef struct { 55 btstack_sbc_mode_t mode; 56 SBC_ENC_PARAMS params; 57 } btstack_sbc_encoder_bluedroid_t; 58 59 #define DECODER_DATA_SIZE (SBC_MAX_CHANNELS*SBC_MAX_BLOCKS*SBC_MAX_BANDS * 4 + SBC_CODEC_MIN_FILTER_BUFFERS*SBC_MAX_BANDS*SBC_MAX_CHANNELS * 2) 60 61 typedef struct { 62 btstack_sbc_mode_t mode; 63 64 OI_UINT32 bytes_in_frame_buffer; 65 OI_CODEC_SBC_DECODER_CONTEXT decoder_context; 66 67 uint8_t frame_buffer[SBC_MAX_FRAME_LEN]; 68 int16_t pcm_plc_data[SBC_MAX_CHANNELS * SBC_MAX_BANDS * SBC_MAX_BLOCKS]; 69 int16_t pcm_data[SBC_MAX_CHANNELS * SBC_MAX_BANDS * SBC_MAX_BLOCKS]; 70 uint32_t pcm_bytes; 71 OI_UINT32 decoder_data[(DECODER_DATA_SIZE+3)/4]; 72 int first_good_frame_found; 73 int h2_sequence_nr; 74 uint16_t msbc_bad_bytes; 75 76 void (*handle_pcm_data)(int16_t * data, int num_samples, int num_channels, int sample_rate, void * context); 77 void * callback_context; 78 79 btstack_sbc_plc_state_t plc_state; 80 81 // summary of processed good, bad and zero frames 82 int good_frames_nr; 83 int bad_frames_nr; 84 int zero_frames_nr; 85 86 } btstack_sbc_decoder_bluedroid_t; 87 88 /* API_START */ 89 90 /** 91 * Init SBC Encoder Instance 92 * @param context for Bluedroid SBC Encoder 93 */ 94 const btstack_sbc_encoder_t * btstack_sbc_encoder_bluedroid_init_instance(btstack_sbc_encoder_bluedroid_t * context); 95 96 /** 97 * Init SBC Decoder Instance 98 * @param context for Bluedroid SBC decoder 99 */ 100 const btstack_sbc_decoder_t * btstack_sbc_decoder_bluedroid_init_instance(btstack_sbc_decoder_bluedroid_t * context); 101 102 /* API_END */ 103 104 // testing only 105 void btstack_sbc_decoder_bluedroid_test_set_plc_enabled(int plc_enabled); 106 void btstack_sbc_decoder_bluedroid_test_simulate_corrupt_frames(int period); 107 108 #if defined __cplusplus 109 } 110 #endif 111 #endif // BTSTACK_SBC_BLUEDROID_H 112