/* SPDX-License-Identifier: BSD-3-Clause

*

* Copyright(c) 2020 Google LLC. All rights reserved.

*

* Author: Pin-chih Lin <johnylin@google.com>

*/

#ifndef __SOF_AUDIO_DRC_DRC_ALGORITHM_H__

#define __SOF_AUDIO_DRC_DRC_ALGORITHM_H__

#include <stdint.h>

#include <sof/audio/drc/drc.h>

#include <sof/platform.h>

#include <user/drc.h>

/* drc reset function */

void drc_reset_state(struct drc_state *state);

/* drc init functions */

int drc_init_pre_delay_buffers(struct drc_state *state,

size_t sample_bytes,

int channels);

int drc_set_pre_delay_time(struct drc_state *state,

int32_t pre_delay_time,

int32_t rate);

/* drc process functions */

void drc_update_detector_average(struct drc_state *state,

const struct sof_drc_params *p,

int nbyte,

int nch);

void drc_update_envelope(struct drc_state *state, const struct sof_drc_params *p);

void drc_compress_output(struct drc_state *state,

const struct sof_drc_params *p,

int nbyte,

int nch);

#endif // __SOF_AUDIO_DRC_DRC_ALGORITHM_H__