lc3_file.h

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/*
 * Copyright (c) 2024 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 */
 
#ifndef LC3_FILE_H__
#define LC3_FILE_H__
 
#include <stddef.h>
#include <stdint.h>
 
#include <zephyr/fs/fs.h>
#include <zephyr/sys/util.h>
 
struct lc3_file_header {
        uint16_t file_id;        
        uint16_t hdr_size;       
        uint16_t sample_rate;    
        uint16_t bit_rate;       
        uint16_t channels;       
        uint16_t frame_duration; 
        uint16_t rfu;            
        uint16_t signal_len_lsb; 
        uint16_t signal_len_msb; 
} __packed;
 
struct lc3_file_ctx {
        struct fs_file_t file_object;
        struct lc3_file_header lc3_header;
        uint32_t number_of_samples;
};
 
int lc3_header_get(struct lc3_file_ctx const *const file, struct lc3_file_header *header);
 
int lc3_file_frame_get(struct lc3_file_ctx *file, uint8_t *buffer, size_t buffer_size);
 
int lc3_file_open(struct lc3_file_ctx *file, const char *file_name);
 
int lc3_file_close(struct lc3_file_ctx *file);
 
int lc3_file_init(void);
 
#endif /* LC3_FILE_H__ */