amf_agccompressorcore.h

ADI SHARC DSP 音频算法标准模块库

#ifndef _AMF_AGCCOMPRESSORCORE_
#define _AMF_AGCCOMPRESSORCORE_

// Copyright(c) 2005 Analog Devices, Inc. All Rights Reserved.
// This software is proprietary and confidential to Analog Devices, Inc. and its licensors.

// File    : $Id: //depot/development/visualaudio/modules/2.5.0/SHARC/Include/AMF_AGCCompressorCore.h#3 $ 
// Part of : VisualAudio V2.5.0 
// Updated : $Date: 2006/10/12 $ by $Author: Fernando $



 
#include "AudioProcessing.h"

#ifdef __ECC__

#include "VA_GeneralHelperFunctions.h"


// C declarations
typedef struct {
    
    AMF_Module b;
    
    // Parameters:
    float threshold, gain, slope; 
    float attackCoef, decayCoef, attackCoefSmoothing, decayCoefSmoothing;
    
    // State:
    float envState;
    float smoothingState;
    
} AMF_AGCCompressorCore;

extern const AMF_ModuleClass AMFClassAGCCompressorCore;

float AMF_AGCCompressorCore_TranslateEnvFollowerT60(float T60, int tickSize, float samplingRate);
float AMF_AGCCompressorCore_TranslateSmoothingFilterT60(float T60, int tickSize, float samplingRate);
float AMF_AGCCompressorCore_TranslateSlope(float ratio);
#else

// ASM declarations for offsets from start of instance (must be kept in synch with C version)
#define AMF_AGCCompressorCore_Threshold                AMF_Module_SIZE  // defined in AudioProcessing.h
#define AMF_AGCCompressorCore_Gain                  (AMF_Module_SIZE+1)
#define AMF_AGCCompressorCore_Slope                 (AMF_Module_SIZE+2)
#define AMF_AGCCompressorCore_AttackCoef             (AMF_Module_SIZE+3)
#define AMF_AGCCompressorCore_DecayCoef             (AMF_Module_SIZE+4)
#define AMF_AGCCompressorCore_AttackCoefSmoothing     (AMF_Module_SIZE+5)
#define AMF_AGCCompressorCore_DecayCoefSmoothing     (AMF_Module_SIZE+6)
#define AMF_AGCCompressorCore_EnvState                 (AMF_Module_SIZE+7)
#define AMF_AGCCompressorCore_SmoothingState         (AMF_Module_SIZE+8)


#endif

#endif