win_02.cc

这是一个从音频信号里提取特征参量的程序

// file: $isip/class/algo/Window/win_02.cc
// version: $Id: win_02.cc,v 1.21 2002/05/31 21:57:32 picone Exp $
//

// isip include files
//
#include "Window.h"
#include <Console.h>

// method: diagnose
//
// arguments:
//  Integral::DEBUG level: (input) debug level for diagnostics
//
// return: a boolean value indicating status
//
boolean Window::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
  //     class constructors
  //
  //--------------------------------------------------------------------------

  // set indentation
  //
  if (level_a > Integral::NONE) {
    Console::put(L"testing required public methods...\n");
    Console::increaseIndention();
  }
  
  Window win0;
  win0.setAlgorithm(RECTANGULAR);
  win0.setNormalization(NONE);
  win0.setDuration(0.025);
  //  win0.init();

  Window win1(win0);
  
  if (!win1.eq(win0)) {
    win0.debug(L"win0");
    win1.debug(L"win1");
    return Error::handle(name(), L"copy constructor", 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
    //
    
    Window::setGrowSize((long)500);
    
    Window* pwin = new Window();

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

  // reset indentation
  //
  if (level_a > Integral::NONE) {
    Console::decreaseIndention();
  }
  
  //--------------------------------------------------------------------------
  //
  // 2. required public methods
  //     i/o methods 
  //
  //--------------------------------------------------------------------------

  // set indentation
  //
  if (level_a > Integral::NONE) {
    Console::put(L"testing required public methods: i/o methods...\n");
    Console::increaseIndention();
  }

  // declare a reference object
  //
  win0.setAlgorithm(HAMMING);
  win0.setAlignment(LEFT);
  win0.setNormalization(NONE);
  win0.setDuration(0.0250);
  win0.init();

  // we need binary and text sof files
  //
  String tmp_filename0;
  Integral::makeTemp(tmp_filename0);
  String tmp_filename1;
  Integral::makeTemp(tmp_filename1);

  // open files in write mode
  //
  Sof tmp_file0;
  tmp_file0.open(tmp_filename0, File::WRITE_ONLY, File::TEXT);
  Sof tmp_file1;
  tmp_file1.open(tmp_filename1, File::WRITE_ONLY, File::BINARY);

  win0.write(tmp_file0, (long)0);
  win0.write(tmp_file1, (long)0);

  // close the files
  //
  tmp_file0.close();
  tmp_file1.close();

  // open the files in read mode
  //
  tmp_file0.open(tmp_filename0);
  tmp_file1.open(tmp_filename1);

  // read the object back
  //
  win1.read(tmp_file0, (long)0);
  win1.init();

  if (!win0.eq(win1)) {
    return Error::handle(name(), L"i/o", Error::TEST,
			 __FILE__, __LINE__);
  }
    
  win1.read(tmp_file1, (long)0);
  win1.init();

  if (!win0.eq(win1)) {
    return Error::handle(name(), L"i/o", Error::TEST,
			 __FILE__, __LINE__);
  }
    
  // close and delete the temporary files
  //
  tmp_file0.close();
  tmp_file1.close();
  File::remove(tmp_filename0);
  File::remove(tmp_filename1);

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

  //--------------------------------------------------------------------------
  //
  // 3. class-specific public methods
  //     set and get methods
  //
  //--------------------------------------------------------------------------

  // set indentation
  //
  if (level_a > Integral::NONE) {  
    Console::put(L"testing class-specific public methods: set and get methods...\n");
    Console::increaseIndention();
  }

  // establish an object
  //
  win0.setAlgorithm(HAMMING);
  VectorFloat tmp(L"27.0, 9.0, 3.0");

  // set the parameters manually
  //
  win0.setAlgorithm(RECTANGULAR);
  win0.setAlignment(LEFT);
  win0.setNormalization(UNIT_ENERGY);
  win0.setDuration(2.0);
  win0.setComputeMode(CROSS_FRAME);
  win0.setSize(3);

  // check that the values were set
  //
  if (win0.algorithm_d != RECTANGULAR) {
    return Error::handle(name(), L"setAlgorithm", Error::TEST,
			 __FILE__, __LINE__);
  }
  else if (win0.cmode_d != CROSS_FRAME) {
    return Error::handle(name(), L"setMode", Error::TEST,
			 __FILE__, __LINE__);
  }
  else if (win0.alignment_d != LEFT) {
    return Error::handle(name(), L"setAlignment", Error::TEST,
			 __FILE__, __LINE__);
  }
  else if (win0.normalization_d != UNIT_ENERGY) {
    return Error::handle(name(), L"setNormalization", Error::TEST,
			 __FILE__, __LINE__);
  }
  else if (win0.duration_d != (float)2.0) {
    return Error::handle(name(), L"setDuration", Error::TEST,
			 __FILE__, __LINE__);
  }
  else if (win0.data_d.length() != 3) {
    return Error::handle(name(), L"setSize", Error::TEST,
			 __FILE__, __LINE__);
  }

  // test setConstants
  //
  win0.setAlgorithm(BLACKMAN);
  win0.setConstants(tmp);

  if (!win0.constants_d.eq(tmp)) {
    return Error::handle(name(), L"setData", Error::TEST,
			 __FILE__, __LINE__);
  }

  // test setData
  //
  win0.setAlgorithm(CUSTOM);
  win0.setData(tmp);

  if (!win0.data_d.eq(tmp)) {
    return Error::handle(name(), L"setData", Error::TEST,
			 __FILE__, __LINE__);
  }

  // reset indentation
  //
  if (level_a > Integral::NONE) {
    Console::decreaseIndention();
  }
  
  //--------------------------------------------------------------------------
  //
  // 4. class-specific public methods
  //     computation methods
  //
  //--------------------------------------------------------------------------

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

  // test the basic compute method:
  //  create a vector, multiplying it by the window, and see if it gives us
  //  back the window.
  //
  VectorFloat input(L"1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2");
  VectorFloat scale(L"1, 0.5, 1, 0.5, 1, 0.5, 1, 0.5, 1, 0.5, 1, 0.5, 1, 0.5, 1, 0.5, 1, 0.5, 1, 0.5");
  VectorFloat output;
  VectorFloat ans;

  win0.clear();
  win0.setSize(input.length());
  win0.setAlgorithm(RECTANGULAR);
  win0.setNormalization(NONE);
  win0.setDuration(0.01);
  win0.init();

  ans.assign(win0.getData());
  win0.compute(output, input);
  output.mult(scale);