corr_00.cc

这是一个从音频信号里提取特征参量的程序

// file: $isip/class/algo/Correlation/corr_00.cc
// version: $Id: corr_00.cc,v 1.15 2002/05/31 21:57:24 picone Exp $
//

// isip include files
//
#include "Correlation.h"
 
//------------------------------------------------------------------------
//
// required public methods
//
//-----------------------------------------------------------------------

// method: assign
//
// arguments:
//  const Correlation& arg: (input) object to assign
//
// return: a boolean value indicating status
//
// this method assigns the input object to current object
//
boolean Correlation::assign(const Correlation& arg_a) {

  // assign all protected data
  //
  algorithm_d = arg_a.algorithm_d;
  implementation_d = arg_a.implementation_d;
  normalization_d = arg_a.normalization_d;
  order_d = arg_a.order_d;

  // call the base assign method:
  //  note that the base class assign method sets the initialization flag
  //
  return AlgorithmBase::assign(arg_a);
}

// method: eq
//
// arguments:
//  const Correlation& arg: (input) input object to assign
//
// return: a boolean value indicating status
//
// this method checks whether the current object is identical to the
// input object
//
boolean Correlation::eq(const Correlation& arg_a) const {

  // compare all protected data
  //
  return ((algorithm_d == arg_a.algorithm_d) &&
	  (implementation_d == arg_a.implementation_d) &&
	  (normalization_d == arg_a.normalization_d) &&
	  (order_d == arg_a.order_d));
}

// method: clear
//
// arguments:
//  Integral::CMODE ctype: (input) clear mode
//
// return: a boolean value indicating status
//
// this method resets the data members to the default values
//
boolean Correlation::clear(Integral::CMODE ctype_a) {

  // reset all protected data
  //
  if (ctype_a != Integral::RETAIN) {
    algorithm_d = DEF_ALGORITHM;
    implementation_d = DEF_IMPLEMENTATION;
    normalization_d = DEF_NORMALIZATION;
    order_d = DEF_ORDER;
  }
  
  // call the base clear method
  //
  return AlgorithmBase::clear(ctype_a);
}

//---------------------------------------------------------------------------
//
// class-specific public methods:
//  public methods required by the AlgorithmBase interface contract
//
//---------------------------------------------------------------------------

// method: assign
//
// arguments:
//  const AlgorithmBase& arg: (input) object to be assigned
//
// return: a boolean value indicating status
//
// this method assigns the input algorithm object to the current
// Correlation object. if the input algorithm object is not a Correlation
// object, it errors.
//
boolean Correlation::assign(const AlgorithmBase& arg_a) {

  if (typeid(arg_a) == typeid(Correlation)) {
    return assign((Correlation&)arg_a);
  }
  else {
    return Error::handle(name(), L"assign", Error::ARG, __FILE__, __LINE__);
  }
}

// method: eq
//
// arguments:
//  const AlgorithmBase& arg: (input) object to be compared
//
// return: a boolean value indicating status
//
// this method checks whether the current Correlation object is identical
// to the input algorithm object. if the input algorithm object is not
// a Correlation object, it errors.
//
boolean Correlation::eq(const AlgorithmBase& arg_a) const {
  
  if (typeid(arg_a) == typeid(Correlation)) {
    return eq((Correlation&)arg_a);
  }
  else {
    return Error::handle(name(), L"eq", Error::ARG, __FILE__, __LINE__);
  }
}

//-----------------------------------------------------------------------------
//
// we define non-integral constants in the default constructor
//      
//-----------------------------------------------------------------------------

// constants: class name
//
const String Correlation::CLASS_NAME(L"Correlation");

// constants: i/o related constants
//
const String Correlation::DEF_PARAM(L"");
const String Correlation::PARAM_ALGORITHM(L"algorithm");
const String Correlation::PARAM_IMPLEMENTATION(L"implementation");
const String Correlation::PARAM_CMODE(L"compute_mode");
const String Correlation::PARAM_NORMALIZATION(L"normalization");
const String Correlation::PARAM_ORDER(L"order");

// constants: NameMap(s) for the enumerated values
//
const NameMap Correlation::ALGO_MAP(L"AUTO, AUTO_TAPERED, CROSS, CONV");
const NameMap Correlation::IMPL_MAP(L"FACTORED, UNFACTORED, CIRCULAR");
const NameMap Correlation::NORM_MAP(L"NONE, LENGTH, UNIT_ENERGY");

// static instantiations: memory manager
//
MemoryManager Correlation::mgr_d(sizeof(Correlation), Correlation::name());