#ifndef AUDIO_COMPRESSOR_H
#define AUDIO_COMPRESSOR_H

#include <stdint.h>
#include <stddef.h>

#ifdef __cplusplus
extern "C" {
#endif

struct audio_compressor;

typedef struct {
    int sample_rate;
    int channels;
    int block_duration_ms;
    int lookback_ms;
    int lookahead_ms;
    float max_gain_db;
    float rise_rate_per_sec;
    float target_level;
} audio_compressor_config_t;

struct audio_compressor* audio_compressor_create(void);
void audio_compressor_destroy(struct audio_compressor* ac);

void audio_compressor_configure(struct audio_compressor* ac, const audio_compressor_config_t* cfg);
void audio_compressor_reset(struct audio_compressor* ac);

void audio_compressor_set_enabled(struct audio_compressor* ac, int enabled);
int  audio_compressor_is_enabled(const struct audio_compressor* ac);

void audio_compressor_push(struct audio_compressor* ac, const int16_t* samples, size_t count);
void audio_compressor_flush(struct audio_compressor* ac);

const int16_t* audio_compressor_output(const struct audio_compressor* ac);
size_t         audio_compressor_output_size(const struct audio_compressor* ac);

#ifdef __cplusplus
}
#endif

#endif