68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
/***************************************************************************
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*
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* Copyright 2015-2019 BES.
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* All rights reserved. All unpublished rights reserved.
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*
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* No part of this work may be used or reproduced in any form or by any
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* means, or stored in a database or retrieval system, without prior written
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* permission of BES.
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*
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* Use of this work is governed by a license granted by BES.
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* This work contains confidential and proprietary information of
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* BES. which is protected by copyright, trade secret,
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* trademark and other intellectual property rights.
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*
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****************************************************************************/
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#ifndef __HW_IIR_PROCESS_H__
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#define __HW_IIR_PROCESS_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "stdint.h"
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#include "hal_aud.h"
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#include "iir_process.h"
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#define AUD_IIR_NUM_EQ (8)
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typedef enum {
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HW_IIR_NO_ERR=0,
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HW_IIR_TYPE_ERR,
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HW_IIR_SAMPLERATE_ERR,
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HW_IIR_COUNTER_ERR,
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HW_IIR_OTHER_ERR,
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HW_IIR_ERR_TOTAL,
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}HW_IIR_ERROR;
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typedef struct _hw_iir_coefs_t
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{
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int32_t coef_b[3];
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int32_t coef_a[3];
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}HW_IIR_COEFS_T;
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typedef struct _hw_iir_filters_t
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{
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uint16_t iir_counter;
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HW_IIR_COEFS_T iir_coef[AUD_IIR_NUM_EQ];
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} HW_IIR_FILTERS_T;
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typedef struct _hw_iir_cfg_t
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{
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HW_IIR_FILTERS_T iir_filtes_l;
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HW_IIR_FILTERS_T iir_filtes_r;
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} HW_IIR_CFG_T;
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int hw_iir_needed_size(enum AUD_BITS_T sample_bits, int32_t frame_size);
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int hw_iir_open(enum AUD_SAMPRATE_T sample_rate, enum AUD_BITS_T sample_bits,enum AUD_CHANNEL_NUM_T ch_num, void *eq_buf, uint32_t len);
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int hw_iir_set_cfg(HW_IIR_CFG_T *cfg);
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int hw_iir_run(uint8_t *buf, uint32_t len);
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int hw_iir_close(void);
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HW_IIR_CFG_T *hw_iir_get_cfg(enum AUD_SAMPRATE_T sample_rate, const IIR_CFG_T* ext_cfg);
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#ifdef __cplusplus
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}
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#endif
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#endif
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