mp3_frame.h

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#pragma once
 
#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>

typedef struct {
    uint32_t rate_hz;            
    uint32_t bitrate_bps;        
    uint16_t samples_per_frame;  
    uint8_t  channels;           
    uint8_t  side_info_bytes;    
} mp3_frame_hdr_t;

bool mp3_frame_parse(const uint8_t *p, size_t len, mp3_frame_hdr_t *out);

uint32_t mp3_xing_duration_ms(const uint8_t *frame, size_t len, const mp3_frame_hdr_t *hdr);