#ifndef AUDIOCAPTURE_H
#define AUDIOCAPTURE_H

#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <alsa/asoundlib.h>
#include <alsa/control.h>
#include <alsa/pcm.h>

// NOTE: find this via `arecord -l`
#define ALSA_MIC_HARDWARE_DEVICE "hw:3"
#define ALSA_SPEAKER_HARDWARE_DEVICE "default"

// Captures audio for given seconds, and returns file name that we captured the
// audio into
char *audio_capture(uint seconds);

/* count: how many bytes in the buffer
 *  returns int: 0 if success, -1 if failure
 *  NOTE: This function assumes that the audio data is using:
 *  - linear16 formatting (each sample is 16 bits)
 *  - one channel (1 sample)
 *  - with 48000 HZ sampling rate
 *  Hence, it's 2 bytes per frame.
 */
int audio_play(char *buf, size_t byte_count);

#endif // AUDIOCAPTURE_H