AAX_Constants.h

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/*================================================================================================*/
/*
 *  Copyright 2009-2015, 2023 Avid Technology, Inc.
 *  All rights reserved.
 *  
 *  CONFIDENTIAL: this document contains confidential information of Avid. Do
 *  not disclose to any third party. Use of the information contained in this
 *  document is subject to an Avid SDK license.
 */
 
/*================================================================================================*/
#pragma once
 
#ifndef AAX_CONSTANTS_H
#define AAX_CONSTANTS_H
 
 
/* the following lines were re-introduced on 6/11/09 because
    the FFmt project still uses SInt32 types    */
#ifdef _TMS320C6X
    typedef   signed int  SInt32;
#else
//  #include "DigiPublicTypes.h"
#endif
/* end 6/11/09 changes */
 
 
// Standard headers
#include <cmath>
 
namespace AAX
{
 
#if __BIG_ENDIAN__
    const int cBigEndian=1;
    const int cLittleEndian=0;
#else
    const int cBigEndian=0;
    const int cLittleEndian=1;
#endif
 
const double cPi            = 3.1415926535897932384626433832795;
const double cTwoPi         = 6.2831853071795862319959269370884;  //2.0*3.1415926535897932384626433832795;
const double cHalfPi        = 1.5707963267948965579989817342721;  //0.5*3.1415926535897932384626433832795;
const double cQuarterPi     = 0.78539816339744827899949086713605; //0.25*3.1415926535897932384626433832795;
const double cRootTwo       = 1.4142135623730950488016887242097;
const double cOneOverRootTwo= 0.70710678118654752440084436210485;
 
 
//Obviously these numbers are are not exact.
const double cPos3dB=1.4142135623730950488016887242097;
const double cNeg3dB=0.70710678118654752440084436210485;
const double cPos6dB=2.0;
const double cNeg6dB=0.5;
 
const double cNormalizeLongToAmplitudeOneHalf   = 0.00000000023283064365386962890625; //1.0/double(1LL<<32LL);
const double cNormalizeLongToAmplitudeOne       = 1.0/double(1<<31); //-0.0000000004656612873077392578125;  
 
const double cMilli=0.001;
const double cMicro=0.001*0.001;
const double cNano=0.001*0.001*0.001;
const double cPico=0.001*0.001*0.001*0.001;
 
const double cKilo=1000.0;
const double cMega=1000.0*1000.0;
const double cGiga=1000.0*1000.0*1000.0;
 
enum ESampleRates
{
    e44100SampleRate = 44100,
    e48000SampleRate = 48000,
    e88200SampleRate = 88200,
    e96000SampleRate = 96000,
    e176400SampleRate = 176400,
    e192000SampleRate = 192000
};
 
} // namespace AAX
 
#endif // AAX_CONSTANTS_H