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#ifndef _QUALITY_MONITOR_H_
#define _QUALITY_MONITOR_H_

#include <libdirac_common/common.h>
#include <libdirac_encoder/enc_picture.h>
#include <libdirac_common/wavelet_utils.h>
namespace dirac
{

    //! Class to monitor the quality of pictures and adjust coding parameters appropriately
    class QualityMonitor
    {
    public:

        //! Constructor. Sets up initial Lagrangian values
        /*
           Constructor sets up initial Lagrangian values.
        */
        QualityMonitor(EncoderParams& ep);


        //! Destructor
        ~QualityMonitor();

        ////////////////////////////////////////////////////////////
        //                                                        //
        //    Assumes default copy constructor,  assignment =     //
        //                 and destructor                         //
        ////////////////////////////////////////////////////////////

        //! Update the mse factors, returning true if we need to recode
        /*!
            Update the mse factors, returning true if we need to recode
            \param enc_picture the picture being encoded
        */
        void UpdateModel(const EncPicture& enc_picture );

        //! Reset the quality factors (say if there's been a cut)
        void ResetAll();

        //! Write a log of the quality to date
        void WriteLog();

    private:
        //functions


        //! Calculate the quality of coded wrt original picture
        double QualityVal( const PicArray& coded_data , 
                           const PicArray& orig_data,
                           const int xlen,
                           const int ylen);

        //member variables//
        ////////////////////

        //! A reference to the encoder parameters
        EncoderParams& m_encparams;

        //! The overall average Y mse
        long double m_totalmse_averageY;

        //! The overall average U mse
        long double m_totalmse_averageU;

        //! The overall average V mse
        long double m_totalmse_averageV;

        //! The total number of pictures coded
        int m_allpicture_total;        

        //! The average Y mse for the picture types
        OneDArray<long double> m_mse_averageY;

        //! The average U mse for the picture types
        OneDArray<long double> m_mse_averageU;

        //! The average V mse for the picture types
        OneDArray<long double> m_mse_averageV;

        //! The number of pictures of each type  
        OneDArray<int> m_picture_total;
    };

} // namespace dirac

#endif