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51 lines
1.8 KiB
51 lines
1.8 KiB
#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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