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#ifndef __EXTRACTBITRATES__
#define __EXTRACTBITRATES__

#include "RuntimeError.h"
#include <vector>

/// An error occured while parsing a POC line from within a log file
class POCParseException: public RuntimeError
{
  public:
    POCParseException( const std::string& pocLine ): m_pocLine( pocLine ) { }
    virtual ~POCParseException( ) throw ( ) { }

  protected:
    void outputWhat( std::ostream& o ) const { o << "POC parse exception: " << m_pocLine; }

  private:
    std::string m_pocLine;
};

/// The QP set from the log file was not contiguous.  The QP set must be contiguous to be able to convert the results into a vector.
class NonContiguousQPSetException: public RuntimeError
{
  public:
    virtual ~NonContiguousQPSetException( ) throw( ) { }

  protected:
    void outputWhat( std::ostream& o ) const { o << "Non-contiguous QP set exception"; }
};

/// Extracts the average bitrates for each of the temporal layers from the given log
/// \param i The input stream that represents the log
/// \return A vector of doubles that contains the average bitrates for each temporal layer
/// \throw POCParseException if an error occured while parsing a POC line
/// \throw NonContiguousQPSetException if the QP set from the log file was not contiguous
std::vector< double > extractBitratesForTemporalLayers( std::istream& i );

#endif
