lm_02.cc

这是一个从音频信号里提取特征参量的程序

// file: $isip/class/asr/LanguageModel/lm_02.cc
// version: $Id: lm_02.cc,v 1.8 2002/12/12 17:26:11 huang Exp $
//

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

// method: diagnose
//
// arguments:
//  Integral::DEBUG level: (input) debug level for diagnostics
//
// return: a boolean value indicating status
//
boolean LanguageModel::diagnose(Integral::DEBUG level_a) {
  
  //---------------------------------------------------------------------------
  //
  // 0. preliminaries
  //
  //---------------------------------------------------------------------------

  // output the class name
  //
  if (level_a > Integral::NONE) {
    SysString output(L"diagnosing class ");
    output.concat(CLASS_NAME);
    output.concat(L": ");
    Console::put(output);
    Console::increaseIndention();
  }
  
  //--------------------------------------------------------------------------
  //
  // 1. required public methods
  //
  //--------------------------------------------------------------------------

  // set indentation
  //  
  if (level_a > Integral::NONE) {
    Console::put(L"testing required public methods: class constructors...\n");
    Console::increaseIndention();
  }
  
  // test destructor/constructor(s) and memory management
  //
  LanguageModel lm0;
  LanguageModel lm1(lm0);
  
  if (!lm1.eq(lm0)) {
    return Error::handle(name(), L"copy constructor/eq", Error::TEST,
			 __FILE__, __LINE__);
  }

  // test large allocation construction and deletion
  //
  if (level_a == Integral::ALL) {
    
    Console::put(L"\ntesting large chunk memory allocation and deletion:\n");
    
    // set the memory to a strange block size so we can hopefully catch any
    // frame overrun errors
    //
    
    LanguageModel::setGrowSize((long)500);
    
    LanguageModel* plm = new LanguageModel();

    for (long j = 1; j <= 100; j++) {
      LanguageModel** plms = new LanguageModel*[j * 100];
      
      // create the objects
      //
    for (long i = 0; i < j * 100; i++) {
      plms[i] = new LanguageModel();
    }
    
    // delete objects
    //
    for (long i = (j * 100) - 1; i >= 0; i--) {
      delete plms[i];
    }
    
    delete [] plms;
    } 
    
    delete plm;
  }

  // reset indentation
  //
  if (level_a > Integral::NONE) {
    Console::decreaseIndention();
  }
  
  //---------------------------------------------------------------------
  //
  // 2. class-specified public methods
  //
  //---------------------------------------------------------------------
  
  // reset indentation
  //
  if (level_a > Integral::NONE) {
    Console::put(L"testing class-specific public methods...\n");
    Console::increaseIndention();
  }

  // test load method
  //
  long num_level = 3;
  Vector<SearchLevel> level1(num_level);
  LanguageModel lmodel1;

  // load the JSGF format input models
  //
  if (!lmodel1.load(L"diagnose_input_model.sof", L"diagnose_input_stat.sof", level1)) {
    return Error::handle(name(), L"load NATIVE input model files", Error::TEST, __FILE__, __LINE__);
  }
  
  // write the models into file in JSGF format
  //
  String mod1;
  Integral::makeTemp(mod1);
  String st1;
  Integral::makeTemp(st1);

  lmodel1.store(mod1, st1, level1, LanguageModel::JSGF);
  lmodel1.store(L"lm1.sof", L"sm1.sof", level1, LanguageModel::JSGF);

  // load in the same models in DiGraph format, which is the output of
  // the above step
  //
  Vector<SearchLevel> level2(num_level);
  LanguageModel lmodel2;
  if (!lmodel2.load(mod1, st1, level2)) {
    return Error::handle(name(), L"load DiGraph format model files", Error::TEST, __FILE__, __LINE__);
  }
  else if (!level2(0).eq(level1(0))) {
    return Error::handle(name(), L"loaded language model (level0) is not correct", Error::TEST, __FILE__, __LINE__);
  }
  else if (!level2(1).eq(level1(1))) {
    return Error::handle(name(), L"loaded language model (level1) is not correct", Error::TEST, __FILE__, __LINE__);
  }
  else if (!level2(2).eq(level1(2))) {
    return Error::handle(name(), L"loaded language model (level2) is not correct", Error::TEST, __FILE__, __LINE__);
  }
  
  // write the models into file in JSGF format
  //
  String mod2;
  Integral::makeTemp(mod2);
  String st2;
  Integral::makeTemp(st2);
  
  lmodel2.store(mod2, st2, level2, LanguageModel::NATIVE);

  //---------------------------------------------------------------------------
  //
  // 3. print completion message
  //
  //---------------------------------------------------------------------------

  // reset indentation
  //
  if (level_a > Integral::NONE) {
    Console::decreaseIndention();
  }

  // possibly print completion message
  //  
  if (level_a > Integral::NONE) {
    String output(L"diagnostics completed successfully for class ");
    output.concat(name());
    output.concat(L"\n");
    Console::put(output);
  }
  
  // exit gracefully
  //
  return true;
}