amf_volumecontrol.h

ADI SHARC DSP 音频算法标准模块库

#ifndef _AMF_VOLUMECONTROL_
#define _AMF_VOLUMECONTROL_

// 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_VolumeControl.h#3 $ 
// Part of : VisualAudio V2.5.0 
// Updated : $Date: 2007-09-06 12:14:49 +0530 (Thu, 06 Sep 2007) $ by $Author: kdasari2 $

#include "AudioProcessing.h"

#ifdef __ECC__
// C declarations

typedef struct {
    AMF_Module b;
    
    // Parameters:
    float coefsSmoothing;
    /*
    coef layout:
        d1        (1st-delayed denominator coef)
        d2        (2nd-delayed denominator coef)
        n0        (non-delayed numerator coef)
        n1        (1st-delayed numerator coef) = d1(for peaking)
        n2        (2nd-delayed numerator coef)
    */
    float *coefsTarget_low;
    float *coefsTarget_high;
    
    // State:
    float pm *coefs_low;
    float pm *coefs_high;
	float state_low[2], state_high[2];
} AMF_VolumeControl;

extern const AMF_ModuleClass AMFClassVolumeControl;

#else

//#define AMF_Module_SIZE 0 // remove this on including audioprocessing.h
// ASM declarations for offsets from start of instance (must be kept in sync with C version)
#define AMF_VolumeControl_coefsSmoothing	AMF_Module_SIZE  // defined in AudioProcessing.h
#define AMF_VolumeControl_coefsTarget_low	(AMF_Module_SIZE+1)
#define AMF_VolumeControl_coefsTarget_high	(AMF_Module_SIZE+2)
#define AMF_VolumeControl_coefs_low         (AMF_Module_SIZE+3)
#define AMF_VolumeControl_coefs_high        (AMF_Module_SIZE+4)
#define AMF_VolumeControl_state_low        (AMF_Module_SIZE+5)
#define AMF_VolumeControl_state_high       (AMF_Module_SIZE+7)


#endif


#endif //_AMF_VOLUMECONTROL_