trace_07.cc

这是一个从音频信号里提取特征参量的程序

// file: $isip/class/search/Trace/trace_07.cc
// version: $Id: trace_07.cc,v 1.3 2003/01/11 17:49:53 alphonso Exp $
//

// isip include files
//
#include "Trace.h"
#include <History.h>

// method: eq
//
// arguments:
//  const Trace& compare_trace: (input) trace to compare
//
// return: true if the traces are equivalent, else false
//
// compare two traces. they are equivalent if they have equivalent history
// objects
//
boolean Trace::eq(const Trace& compare_trace_a) const {

  // compare the history pointers
  //
  if (history_d != compare_trace_a.history_d) {
    return false;
  }

  // compare the symbol pointers
  //
  if (symbol_d != compare_trace_a.symbol_d) {
    return false;
  }  

  // if we reached this far then they must be equal
  //
  return true;
}

// method: setHistory
//
// arguments:
//  const History* new_hist: (input) the history to copy
//
// return: a boolean indicating status
//
// this method sets the trace's history to the input history
//
boolean Trace::setHistory(const History* new_hist_a) {

  // set the history
  //
  return (history_d = const_cast<History *>(new_hist_a));
}

// method: getHistory
//
// arguments: none
//
// return: a boolean indicating status
//
// this method gets the trace's history
//
History* Trace::getHistory() const {

  // get the history
  //
  return history_d;
}

// method: setSymbol
//
// arguments:
//  const Symbol& new_symbol: (input) the symbol to copy
//
// return: a boolean indicating status
//
// this method sets the trace's symbol to the input symbol
//
boolean Trace::setSymbol(const Context* new_symbol_a) {

  // set the symbol
  //
  return (symbol_d = const_cast<Context *>(new_symbol_a));
}

// method: getSymbol
//
// arguments: none
//
// return: a boolean indicating status
//
// this method gets the trace's symbol
//
Context* Trace::getSymbol() const {

  // get the symbol
  //
  return symbol_d;
}