text: // 
  // Notice Regarding Standards.  AMD does not provide a license or sublicense to
  // any Intellectual Property Rights relating to any standards, including but not
  // limited to any audio and/or video codec technologies such as MPEG-2, MPEG-4;
  // AVC/H.264; HEVC/H.265; AAC decode/FFMPEG; AAC encode/FFMPEG; VC-1; and MP3
  // (collectively, the "Media Technologies"). For clarity, you will pay any
  // royalties due for such third party technologies, which may include the Media
  // Technologies that are owed as a result of AMD providing the Software to you.
  // 
  // MIT license 
  // 
  // Copyright (c) 2018 Advanced Micro Devices, Inc. All rights reserved.
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to deal
  // in the Software without restriction, including without limitation the rights
  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  // copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in
  // all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  // THE SOFTWARE.
  //
  #include "CmdLineParser.h"
  #include "public/common/Thread.h"
  #include "public/common/AMFSTL.h"
  #include <iterator>
  #include <functional>
  #include <algorithm>
  #include <fstream>
  #include <iostream>
  #include <cctype>
  #include <vector>
  
  
  typedef std::pair<std::wstring, std::wstring> CmdArg;
  typedef std::list<CmdArg> CmdArgs;
  
  
  bool isParamName(const std::wstring& str)
  {
      return (str.size() > 1) && str.front() == '-';
  }
  
  bool parseCmdLine(int argc, char* argv[], CmdArgs* cmdArgs)
  {
      bool ret = true;
  
      std::vector<std::wstring> params;
      
  #ifdef _WIN32
      if(argc == 0)
      {
          LPWSTR* szArglist = nullptr;
          int nArgs = 0;
          szArglist = CommandLineToArgvW(GetCommandLineW(), &nArgs);
          if(szArglist != nullptr)
          {
              for(int i = 0; i < nArgs; i++)
              {
                  params.push_back(szArglist[i]);
              }
              LocalFree(szArglist);
          }
      }
  #endif    
      if(params.size() == 0 && argc > 0)
      {
          for(int i = 0; i < argc; i++)
          {
              params.push_back( amf::amf_from_utf8_to_unicode(amf_string(argv[i]) ).c_str() );
          }
      }
  
      if( params.size() == 0)
      {
          ret = false;
      }
      else
      {
          for(int i = 1; i < (int)params.size(); i++)
          {
              std::wstring name = toUpper(params[i]);
              std::wstring value;
              if (!isParamName(name))
              {
                  LOG_ERROR(L"Invalid command line parameter name: " << L"\"" << name << L"\"");
                  return false;
              }
              if (i + 1 < (int)params.size() && !isParamName(params[i+1]))
              {
                  i++;
                  value = params[i];
              }
              cmdArgs->push_back( CmdArg(name.substr(1), value));
          }
      }
      return ret;
  }
  
  
  template<class T> bool FromString(const std::wstring& str, T& value)
  {
      std::wstringstream stream;
      stream << str;
      stream >> value;
      if (!stream || !stream.eof())
      {
          LOG_ERROR(L"String \"" << str << L"\" is invalid.");
          return false;
      }
      return true;
  }
  
  bool parseCmdLineParameters(ParametersStorage* pParams, int argc, char* argv[])
  {
      CmdArgs cmdArgs;
      if (parseCmdLine( argc, argv, &cmdArgs))
      {
          for (CmdArgs::iterator it = cmdArgs.begin(); it != cmdArgs.end(); it++)
          {
              const std::wstring& name = it->first;
              if(name == L"HELP" || name == L"?")
              {
                  LOG_INFO(pParams->GetParamUsage());
                  return false;
              }
              else
              {
                  pParams->SetParamAsString(name, it->second); // may be need process return value
              }
          }
          return true;
      }
      return false;
  }