audio.h

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// SPDX-License-Identifier: Apache-2.0
#pragma once
 
#include "audio_player/base.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define AUDIO_MAX_CHANNELS 2
 
typedef struct {
    uint32_t sample_rate;   
    uint8_t channels;       
    uint8_t bits;           
    bool dop;               
} audio_format_t;
 
static inline bool audio_format_equal(const audio_format_t *a, const audio_format_t *b) {
    return a->sample_rate == b->sample_rate && a->channels == b->channels && a->bits == b->bits && a->dop == b->dop;
}
 
typedef enum { RATE_FAMILY_44K1 = 0, RATE_FAMILY_48K = 1, RATE_FAMILY_OTHER = 2 } rate_family_t;
rate_family_t audio_rate_family(uint32_t sample_rate);
 
static inline int32_t audio_s16_to_q31(int16_t v) { return (int32_t)((uint32_t)(uint16_t)v << 16); }
static inline int32_t audio_s24_to_q31(int32_t v24) { return (int32_t)((uint32_t)v24 << 8); }
static inline int16_t audio_q31_to_s16_trunc(int32_t v) { return (int16_t)(v >> 16); }
 
uint64_t audio_ms_to_frames(uint32_t ms, uint32_t sample_rate);
uint32_t audio_frames_to_ms(uint64_t frames, uint32_t sample_rate);
 
#ifdef __cplusplus
}
#endif