ExtractBitratesMain.cpp

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#include <iostream>
#include <cassert>
#include "ExtractBitrates.h"

/// In out, finds the first occurence of toFind and replaces it with "e"
/// \pre toFind must have a size of 2
/// \pre The first character in toFind muts be 'e'
/// \pre out must contain toFind
void replaceWithE( std::string &out, const std::string& toFind )
{
  assert( 2 == toFind.size( ) );
  assert( 'e' == toFind[ 0 ] );

  std::string::size_type pos( out.find( toFind ) );
  assert( pos != std::string::npos );
  out.erase( pos + 1, 1 );
}

/// Formatted output for a double with appropriate formatting applied (correct number of digits, etc.)
void outputDouble( std::ostream& left, double right )
{
  std::ostringstream oss;
  oss.precision( 6 );
  oss << std::scientific << right;
  std::string s( oss.str( ) );

  replaceWithE( s, "e+" );
  replaceWithE( s, "e0" );

  left << s;
}

int main( int, char** )
{
  try
  {
    std::vector< double > result( extractBitratesForTemporalLayers( std::cin ) );  // Extract the bitrate vector

    // Output the bitrate vector
    if( 0 < result.size( ) )
    {
      std::vector< double >::const_iterator iter( result.begin( ) );
      outputDouble( std::cout, *iter );
      for( ; ; )
      {
        ++iter;
        if( result.end( ) == iter )
        {
          break;
        }
        else
        {
          std::cout << " ";
          outputDouble( std::cout, *iter );
        }
      }
    }

    return 0;
  }
  catch( std::exception& e )
  {
    std::cerr << e.what( ) << std::endl;
    return 1;
  }
}