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/*
* Copyright (C) 2004-2010 NXP Software
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/****************************************************************************************/
/* */
/* Header file for the private layer interface of Dynamic Bass Enhancement module */
/* */
/* This files includes all definitions, types, structures and function */
/* prototypes required by the execution layer. */
/* */
/****************************************************************************************/
#ifndef __LVDBE_PRIVATE_H__
#define __LVDBE_PRIVATE_H__
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/****************************************************************************************/
/* */
/* Includes */
/* */
/****************************************************************************************/
#include "LVDBE.h" /* Calling or Application layer definitions */
#include "BIQUAD.h"
#include "LVC_Mixer.h"
#include "AGC.h"
/****************************************************************************************/
/* */
/* Defines */
/* */
/****************************************************************************************/
/* General */
#define LVDBE_INVALID 0xFFFF /* Invalid init parameter */
/* Memory */
#define LVDBE_MEMREGION_INSTANCE 0 /* Offset to the instance memory region */
#define LVDBE_MEMREGION_PERSISTENT_DATA 1 /* Offset to persistent data memory region */
#define LVDBE_MEMREGION_PERSISTENT_COEF 2 /* Offset to persistent coefficient region */
#define LVDBE_MEMREGION_SCRATCH 3 /* Offset to data scratch memory region */
#define LVDBE_INSTANCE_ALIGN 4 /* 32-bit alignment for structures */
#define LVDBE_PERSISTENT_DATA_ALIGN 4 /* 32-bit alignment for data */
#define LVDBE_PERSISTENT_COEF_ALIGN 4 /* 32-bit alignment for coef */
#define LVDBE_SCRATCH_ALIGN 4 /* 32-bit alignment for long data */
#define LVDBE_SCRATCHBUFFERS_INPLACE 4 /* Number of buffers required for inplace processing */
#define LVDBE_MIXER_TC 5 /* Mixer time */
#define LVDBE_BYPASS_MIXER_TC 100 /* Bypass mixer time */
/****************************************************************************************/
/* */
/* Structures */
/* */
/****************************************************************************************/
/* Data structure */
typedef struct
{
/* AGC parameters */
AGC_MIX_VOL_2St1Mon_D32_t AGCInstance; /* AGC instance parameters */
/* Process variables */
Biquad_2I_Order2_Taps_t HPFTaps; /* High pass filter taps */
Biquad_1I_Order2_Taps_t BPFTaps; /* Band pass filter taps */
LVMixer3_1St_st BypassVolume; /* Bypass volume scaler */
LVMixer3_2St_st BypassMixer; /* Bypass Mixer for Click Removal */
} LVDBE_Data_t;
/* Coefs structure */
typedef struct
{
/* Process variables */
Biquad_Instance_t HPFInstance; /* High pass filter instance */
Biquad_Instance_t BPFInstance; /* Band pass filter instance */
} LVDBE_Coef_t;
/* Instance structure */
typedef struct
{
/* Public parameters */
LVDBE_MemTab_t MemoryTable; /* Instance memory allocation table */
LVDBE_Params_t Params; /* Instance parameters */
LVDBE_Capabilities_t Capabilities; /* Instance capabilities */
/* Data and coefficient pointers */
LVDBE_Data_t *pData; /* Instance data */
LVDBE_Coef_t *pCoef; /* Instance coefficients */
} LVDBE_Instance_t;
/****************************************************************************************/
/* */
/* Function prototypes */
/* */
/****************************************************************************************/
void LVDBE_SetAGC(LVDBE_Instance_t *pInstance,
LVDBE_Params_t *pParams);
void LVDBE_SetVolume(LVDBE_Instance_t *pInstance,
LVDBE_Params_t *pParams);
void LVDBE_SetFilters(LVDBE_Instance_t *pInstance,
LVDBE_Params_t *pParams);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __LVDBE_PRIVATE_H__ */
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