audio_sink.h

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#pragma once
 
#include "esp_err.h"
#include <stdint.h>
#include <stddef.h>


typedef struct {
    esp_err_t (*start)(uint32_t rate_hz, uint8_t bits, uint8_t channels);
    esp_err_t (*write)(const void *pcm, size_t len, size_t *written);
    esp_err_t (*stop)(void);
    esp_err_t (*set_volume)(uint8_t left, uint8_t right);
} audio_sink_t;