sdl-audio/audio.h

#ifndef AUDIO_H
#define AUDIO_H
#include <stdint.h>

#define MAX_RECORDING_SECONDS 2

typedef struct audio_state {
	int recording_device_id;
	int playback_device_id;
	uint8_t* recording_buffer;
	unsigned int recording_buffer_size;
	unsigned int recording_buffer_position;
} audio_state;

int audio_init(audio_state* state);
void audio_destroy(audio_state* state);
int audio_recording_init(audio_state* state, int index);
int audio_playback_init(audio_state* state);
void audio_recording_callback(void* userdata, uint8_t* stream, int len);
void audio_playback_callback(void* userdata, uint8_t* stream, int len);

#endif