sm_04.cc

这是一个从音频信号里提取特征参量的程序

// file: $isip/class/stat/StatisticalModel/sm_04.cc
// version: $Id: sm_04.cc,v 1.7 2002/10/18 21:47:01 alphonso Exp $
//

// isip include files
//
#include "StatisticalModel.h"

// method: writeAccumulator
//
// arguments:
//  Sof& sof: (input) sof file object
//  long tag: (input) sof object instance tag
//  const String& name: (input) sof object instance name
//
// return: a boolean value indicating status
//
// this method has the object write accumulators to an Sof file
//
boolean StatisticalModel::writeAccumulator(Sof& sof_a, long tag_a,
				     const String& name_a) const {

  long obj_size = 0;
  
  // write the instance of the object into the Sof file
  //
  if (sof_a.isText()) {

    // set the size to by dynamic
    //
    obj_size = Sof::ANY_SIZE;
  }
  else {

    // the size index and the size of each element
    //
    obj_size = virtual_model_d->sofAccumulatorSize();
  }

  // write the object into the sof file's index
  //
  if (!sof_a.put(name_a, tag_a, obj_size)) {
    return false;
  }
  
  // exit gracefully
  //
  return writeAccumulatorData(sof_a);
}

// method: writeAccumulatorData
//
// arguments:
//  Sof& sof: (input) sof file object
//  const String& pname: (input) parameter name
//
// return: a boolean value indicating status
//
// this method has the object write itself to an Sof file. it assumes
// that the Sof file is already positioned correctly.
//
boolean StatisticalModel::writeAccumulatorData(Sof& sof_a, const String& pname_a) const {

  // write a start string if necessary
  //
  sof_a.writeLabelPrefix(pname_a);

  // write the data
  //
  if (!virtual_model_d->writeAccumulatorData(sof_a, String::getEmptyString())) {
    return false;
  }

  // put an end string if necessary
  //
  sof_a.writeLabelSuffix(pname_a);
  
  // exit gracefully
  //
  return true;  
}

// method: writeOccupancies
//
// arguments:
//  Sof& sof: (input) sof file object
//  long tag: (input) sof object instance tag
//  const String& name: (input) sof object instance name
//
// return: a boolean value indicating status
//
// this method has the object write Occupanciess to an Sof file
//
boolean StatisticalModel::writeOccupancies(Sof& sof_a, long tag_a,
				     const String& name_a) const {

  long obj_size = 0;
  
  // write the instance of the object into the Sof file
  //
  if (sof_a.isText()) {

    // set the size to by dynamic
    //
    obj_size = Sof::ANY_SIZE;
  }
  else {

    // the size index and the size of each element
    //
    obj_size = virtual_model_d->sofOccupanciesSize();
  }

  // write the object into the sof file's index
  //
  if (!sof_a.put(name_a, tag_a, obj_size)) {
    return false;
  }
  
  // exit gracefully
  //
  return writeOccupanciesData(sof_a);
}

// method: writeOccupanciesData
//
// arguments:
//  Sof& sof: (input) sof file object
//  const String& pname: (input) parameter name
//
// return: a boolean value indicating status
//
// this method has the object write itself to an Sof file. it assumes
// that the Sof file is already positioned correctly.
//
boolean StatisticalModel::writeOccupanciesData(Sof& sof_a, const String& pname_a) const {

  // write a start string if necessary
  //
  sof_a.writeLabelPrefix(pname_a);

  // write the data
  //
  if (!virtual_model_d->writeOccupanciesData(sof_a, String::getEmptyString())) {
    return false;
  }

  // put an end string if necessary
  //
  sof_a.writeLabelSuffix(pname_a);
  
  // exit gracefully
  //
  return true;  
}

// method: write
//
// arguments:
//  Sof& sof: (input) sof file object
//  long tag: (input) sof object instance tag
//  const String& name: (input) sof object instance name
//
// return: a boolean value indicating status
//
// this method has the object write itself to an Sof file
//
boolean StatisticalModel::write(Sof& sof_a, long tag_a,
				const String& name_a) const {

  long obj_size = 0;
  
  // write the instance of the object into the Sof file
  //
  if (sof_a.isText()) {

    // set the size to by dynamic
    //
    obj_size = Sof::ANY_SIZE;
  }
  else {

    // the size index and the size of each element
    //
    obj_size = sofSize();
  }

  // write the object into the sof file's index
  //
  if (!sof_a.put(name_a, tag_a, obj_size)) {
    return false;
  }
  
  // exit gracefully
  //
  return writeData(sof_a);
}

// method: writeData
//
// arguments:
//  Sof& sof: (input) sof file object
//  const String& pname: (input) parameter name
//
// return: a boolean value indicating status
//
// this method has the object write itself to an Sof file. it assumes
// that the Sof file is already positioned correctly.
//
boolean StatisticalModel::writeData(Sof& sof_a, const String& pname_a) const {

  // write a start string if necessary
  //
  sof_a.writeLabelPrefix(pname_a);

  // write the type
  //
  TYPE type = getType();
  TYPE_MAP.writeElementData(sof_a, PARAM_TYPE, (ushort)type);
  
  // write the data
  //
  if (!virtual_model_d->writeData(sof_a, String::getEmptyString())) {
    return false;
  }

  // put an end string if necessary
  //
  sof_a.writeLabelSuffix(pname_a);
  
  // exit gracefully
  //
  return true;
}