T
84 lines
3.4 KiB
C
84 lines
3.4 KiB
C
/*
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* Copyright (C) 2004-2010 NXP Software
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _COMP_LIM_H
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#define _COMP_LIM_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/************************************************************************************/
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/* */
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/* Includes */
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/* */
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/************************************************************************************/
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#include "LVM_Types.h"
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/************************************************************************************/
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/* */
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/* Structures */
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/* */
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/************************************************************************************/
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typedef struct /* Compressor state */
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{
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/* Normaliser */
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LVM_INT16 Norm_Attack; /* Attack time constant of the Normaliser integrator */
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LVM_INT16 Norm_Decay; /* Decay time constant of the Normaliser integrator */
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LVM_INT32 NormInt; /* Normaliser integrator current value */
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LVM_INT16 Shift; /* Shift gain */
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LVM_INT16 Threshold; /* Target threshold */
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/* Compressor */
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LVM_INT16 Comp_Atten; /* Attenuation applied before soft knee compressor */
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LVM_INT16 Comp_Attack_S; /* Attack time constant of the slow integrator */
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LVM_INT16 Comp_Decay_S; /* Decay time constant of slow the integrator */
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LVM_INT16 Comp_Attack_F; /* Attack time constant of fast the integrator */
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LVM_INT16 Comp_Decay_F; /* Decay time constant of fast the integrator */
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LVM_INT16 SoftClipGain; /* Soft clip gain control */
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LVM_INT32 CompIntSlow; /* Compressor slow integrator current value */
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LVM_INT32 CompIntFast; /* Compressor fast integrator current value */
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} CompLim_Instance_t;
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/************************************************************************************/
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/* */
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/* Function Prototypes */
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/* */
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/************************************************************************************/
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void NonLinComp_D16(LVM_INT16 Gain,
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LVM_INT16 *pSterBfIn,
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LVM_INT16 *pSterBfOut,
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LVM_INT32 BlockLength);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* #ifndef _COMP_LIM_H */
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