slev_03.cc

这是一个从音频信号里提取特征参量的程序

// file: $isip/class/stat/SearchLevel/slev_03.cc
// version: $Id: slev_03.cc,v 1.6 2003/03/21 16:40:00 huang Exp $
//

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

// method: read
//
// 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 read itself from an Sof file
//
boolean SearchLevel::read(Sof& sof_a, long tag_a, const String& name_a) {

  // read the instance of the object from the Sof file
  //
  if (!sof_a.find(name_a, tag_a)) {
    return false;
  }
  
  // read the actual data from the sof file
  //
  if (!readData(sof_a)) {
    return false;
  }
  
  // exit gracefully
  //
  return true;  
}

// method: readData
//
// arguments:
//  Sof& sof: (input) sof file object
//  const String& pname: (input) parameter name
//  long size: (input) size in bytes of object (or full_size)
//  boolean param: (input) is the parameter name in the file?
//  boolean nested: (input) are we nested?
//
// return: a boolean value indicating status
//
// this method has the object read itself from an Sof file. it assumes
// that the Sof file is already positioned correctly.
//
boolean SearchLevel::readData(Sof& sof_a, const String& pname_a,
			      long size_a, boolean param_a,
			      boolean nested_a) {

  Integral::DEBUG debug_level = Integral::NONE;
  SofParser parser;
  parser.setDebug(debug_level);
    
  // are we nested?
  //
  if (nested_a) {
    parser.setNest();
  }
  
  // load the parser
  //
  if (!parser.load(sof_a, size_a)) {
    return Error::handle(name(), L"readData", Error::READ,
			 __FILE__, __LINE__, Error::WARNING);
  }	    

  // read the nsymbol parameters
  //
  if (parser.isPresent(sof_a, PARAM_USE_NSYMBOL)) {
    if (!use_nsymbol_d.readData(sof_a, PARAM_USE_NSYMBOL,
				parser.getEntry(sof_a,
						PARAM_USE_NSYMBOL))) {
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }    
  }
  else {
    use_nsymbol_d = DEF_USE_NSYMBOL;
  }
  
  if (parser.isPresent(sof_a, PARAM_NSYMBOL_ORDER)) {
    if (!nsymbol_order_d.readData(sof_a, PARAM_NSYMBOL_ORDER,
		     parser.getEntry(sof_a,
				     PARAM_NSYMBOL_ORDER))) {
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }    
  }
  else {
    nsymbol_order_d = DEF_NSYMBOL_ORDER;
  }  

  if (parser.isPresent(sof_a, PARAM_NSYMBOL_MODEL)) {
    if (!nsymbol_file_d.readData(sof_a, PARAM_NSYMBOL_MODEL,
			   parser.getEntry(sof_a,
					   PARAM_NSYMBOL_MODEL))) {
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }    
  }

  // read num of mixtures
  //
  if (parser.isPresent(sof_a, PARAM_NUM_OF_MIXTURES)) {
    if (!num_of_mixtures_d.readData(sof_a, PARAM_NUM_OF_MIXTURES,
			   parser.getEntry(sof_a,
					   PARAM_NUM_OF_MIXTURES))) {
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }    
  }

  // read the model type
  //
  if (parser.isPresent(sof_a, PARAM_STAT_MODEL_TYPE)) {
    if (!StatisticalModel::TYPE_MAP.readElementData((long&)stat_model_type_d,
						    sof_a,
				  PARAM_STAT_MODEL_TYPE,
			      parser.getEntry(sof_a, PARAM_STAT_MODEL_TYPE))) {
      
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }       
  }

  // read the scale and symbol insertion parameters
  //
  if (parser.isPresent(sof_a, PARAM_LM_SCALE)) {
    if (!lm_scale_d.readData(sof_a, PARAM_LM_SCALE,
		     parser.getEntry(sof_a,
				     PARAM_LM_SCALE))) {
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }    
  }
  else {
    lm_scale_d = DEF_LM_SCALE;
  }
  
  if (parser.isPresent(sof_a, PARAM_TR_SCALE)) {
    if (!tr_scale_d.readData(sof_a, PARAM_TR_SCALE,
		     parser.getEntry(sof_a,
				     PARAM_TR_SCALE))) {
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }    
  }
  else {
    tr_scale_d = DEF_TR_SCALE;
  }
  
  if (parser.isPresent(sof_a, PARAM_SYMBOL_PENALTY)) {
    if (!symbol_penalty_d.readData(sof_a, PARAM_SYMBOL_PENALTY,
			   parser.getEntry(sof_a,
					   PARAM_SYMBOL_PENALTY))) {
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }    
  }
  else {
    symbol_penalty_d = DEF_SYMBOL_PENALTY;
  }

  // read the context parameters
  //
  if (parser.isPresent(sof_a, PARAM_USE_CONTEXT)) {
    if (!use_context_d.readData(sof_a, PARAM_USE_CONTEXT,
			   parser.getEntry(sof_a,
					   PARAM_USE_CONTEXT))) {
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }    
  }
  else {
    use_context_d = DEF_USE_CONTEXT;
  }

  if (parser.isPresent(sof_a, PARAM_LEFT_CONTEXT_LENGTH)) {
    if (!left_context_d.readData(sof_a, PARAM_LEFT_CONTEXT_LENGTH,
				 parser.getEntry(sof_a,
				 PARAM_LEFT_CONTEXT_LENGTH))) {
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }    
  }
  else {
    left_context_d = DEF_LEFT_CONTEXT;
  }

  if (parser.isPresent(sof_a, PARAM_RIGHT_CONTEXT_LENGTH)) {
    if (!right_context_d.readData(sof_a, PARAM_RIGHT_CONTEXT_LENGTH,
				 parser.getEntry(sof_a,
				 PARAM_RIGHT_CONTEXT_LENGTH))) {
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }    
  }
  else {
    left_context_d = DEF_RIGHT_CONTEXT;
  }    
  
  // read the lexical tree
  //
  if (parser.isPresent(sof_a, PARAM_USE_LEXICAL_TREE)) {
    if (!use_lexical_tree_d.readData(sof_a, PARAM_USE_LEXICAL_TREE,
			   parser.getEntry(sof_a,
					   PARAM_USE_LEXICAL_TREE))) {
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }    
  }
  else {
    use_lexical_tree_d = DEF_USE_LEXICAL_TREE;
  }

  // read the beam prunning parameters
  //
  if (parser.isPresent(sof_a, PARAM_USE_BEAM)) {
    if (!use_beam_prune_d.readData(sof_a, PARAM_USE_BEAM,
				   parser.getEntry(sof_a,
						   PARAM_USE_BEAM))) {
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }    
  }  
  else {
    use_beam_prune_d = DEF_BEAM_PRUNE;
  }

  if (parser.isPresent(sof_a, PARAM_BEAM_THRESHOLD)) {
    if (!beam_threshold_d.readData(sof_a, PARAM_BEAM_THRESHOLD,
				   parser.getEntry(sof_a,
						   PARAM_BEAM_THRESHOLD))) {
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }    
  }  
  else {
    beam_threshold_d = DEF_BEAM_THRESHOLD;
  }    
  
  // read the instance prunning parameters
  //
  if (parser.isPresent(sof_a, PARAM_USE_INSTANCE)) {
    if (!use_instance_prune_d.readData(sof_a, PARAM_USE_INSTANCE,
				  parser.getEntry(sof_a,
						  PARAM_USE_INSTANCE))) {
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }    
  }  
  else {
    use_instance_prune_d = DEF_INSTANCE_PRUNE;
  }
  
  if (parser.isPresent(sof_a, PARAM_INSTANCE_THRESHOLD)) {
    if (!instance_threshold_d.readData(sof_a, PARAM_INSTANCE_THRESHOLD,
				   parser.getEntry(sof_a,
						   PARAM_INSTANCE_THRESHOLD))) {
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }    
  }  
  else {
    instance_threshold_d = DEF_INSTANCE_THRESHOLD;
  }
  
  // read the symbol occupancies parameters
  //
  if (parser.isPresent(sof_a, PARAM_WRITE_SYMBOL_OCCUPANCY)) {
    if (!write_symbol_occupancy_d.readData(sof_a, PARAM_WRITE_SYMBOL_OCCUPANCY,
					   parser.getEntry(sof_a,
					      PARAM_WRITE_SYMBOL_OCCUPANCY))) {
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }    
  }
  else {
    write_symbol_occupancy_d = DEF_WRITE_SYMBOL_OCCUPANCY;
  }  

  if (parser.isPresent(sof_a, PARAM_SYMBOL_OCCUPANCY_FILE)) {
    if (!symbol_occupancy_file_d.readData(sof_a, PARAM_SYMBOL_OCCUPANCY_FILE,
					  parser.getEntry(sof_a,
					       PARAM_SYMBOL_OCCUPANCY_FILE))) {
      return Error::handle(name(), L"readData", Error::READ,
			   __FILE__, __LINE__, Error::WARNING);
    }    
  }
  
  // exit gracefully
  //
  return true;
}