70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
|
/***************************************************************************
|
||
|
|
*
|
||
|
|
* Copyright 2015-2019 BES.
|
||
|
|
* All rights reserved. All unpublished rights reserved.
|
||
|
|
*
|
||
|
|
* No part of this work may be used or reproduced in any form or by any
|
||
|
|
* means, or stored in a database or retrieval system, without prior written
|
||
|
|
* permission of BES.
|
||
|
|
*
|
||
|
|
* Use of this work is governed by a license granted by BES.
|
||
|
|
* This work contains confidential and proprietary information of
|
||
|
|
* BES. which is protected by copyright, trade secret,
|
||
|
|
* trademark and other intellectual property rights.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
#ifndef __SPEECH_IIR_H__
|
||
|
|
#define __SPEECH_IIR_H__
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define SPEECH_IIR_COEFF_LEN (5)
|
||
|
|
|
||
|
|
typedef float SPEECH_RX_EQ_PCOEFFS_T[SPEECH_IIR_COEFF_LEN];
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
int32_t numStages;
|
||
|
|
|
||
|
|
// {
|
||
|
|
// {b10, b11, b12, a11, a12},
|
||
|
|
// {b20, b21, b22, a21, a22},
|
||
|
|
// ...
|
||
|
|
// }
|
||
|
|
// const float (*pCoeffs)[SPEECH_IIR_COEFF_LEN];
|
||
|
|
SPEECH_RX_EQ_PCOEFFS_T *pCoeffs;
|
||
|
|
} SPEECH_IIR_CFG_T;
|
||
|
|
|
||
|
|
typedef void SPEECH_IIR_STATE_T;
|
||
|
|
|
||
|
|
// Initial speech_iir module/class
|
||
|
|
int speech_iir_init(void);
|
||
|
|
|
||
|
|
// Deinitial speech_iir module/calss
|
||
|
|
int speech_iir_deinit(void);
|
||
|
|
|
||
|
|
// Creat a instance from speech_iir module/class
|
||
|
|
// Common value include: sample rate, frame size and so on.
|
||
|
|
SPEECH_IIR_STATE_T *speech_iir_create(const SPEECH_IIR_CFG_T *cfg);
|
||
|
|
|
||
|
|
// Destory a speech iir instance
|
||
|
|
int speech_iir_destroy(SPEECH_IIR_STATE_T *inst);
|
||
|
|
|
||
|
|
// Just use modify instance configure
|
||
|
|
int speech_iir_set_config(SPEECH_IIR_STATE_T *inst, const SPEECH_IIR_CFG_T *cfg);
|
||
|
|
|
||
|
|
// Process speech stream
|
||
|
|
int speech_iir_process(SPEECH_IIR_STATE_T *inst, int16_t *pcm_buf, int32_t pcm_len);
|
||
|
|
|
||
|
|
// Debug speech_iir instance
|
||
|
|
int speech_iir_dump(SPEECH_IIR_STATE_T *inst);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|