52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
#ifndef AUDIO_COMPRESSOR_H
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#define AUDIO_COMPRESSOR_H
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#include <stdint.h>
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct audio_compressor;
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typedef struct {
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int sample_rate;
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int channels;
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int block_duration_ms;
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int lookback_ms;
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int lookahead_ms;
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float max_gain_db;
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float rise_rate_per_sec;
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float release_rate_per_sec; /* скорость плавного снижения gain (0 = авто: rise*5) */
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float target_level;
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} audio_compressor_config_t;
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struct audio_compressor* audio_compressor_create(void);
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void audio_compressor_destroy(struct audio_compressor* ac);
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void audio_compressor_configure(struct audio_compressor* ac, const audio_compressor_config_t* cfg);
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void audio_compressor_reset(struct audio_compressor* ac);
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void audio_compressor_set_enabled(struct audio_compressor* ac, int enabled);
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int audio_compressor_is_enabled(const struct audio_compressor* ac);
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void audio_compressor_push(struct audio_compressor* ac, const int16_t* samples, size_t count);
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void audio_compressor_flush(struct audio_compressor* ac);
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const int16_t* audio_compressor_output(const struct audio_compressor* ac);
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size_t audio_compressor_output_size(const struct audio_compressor* ac);
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/* Сбросить накопленный выход (output_size=0) после слива — для потокового режима.
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* НЕ трогает gain_smoothed (адаптивная громкость сохраняется). */
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void audio_compressor_clear_output(struct audio_compressor* ac);
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/* Число сэмплов, обрезанных по потолку int16 (клиппинг) с момента create/reset. */
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uint32_t audio_compressor_clip_count(const struct audio_compressor* ac);
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#ifdef __cplusplus
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}
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#endif
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#endif
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