fft_result.h

Go to the documentation of this file.

/*
    Copyright (C) 2006 Paul Davis
        Written by Sampo Savolainen

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#ifndef __ardour_fft_result_h
#define __ardour_fft_result_h

#include <fftw3.h>

#include <gdkmm/color.h>

#include <string>

class FFTGraph;

class FFTResult
{
        public:

                ~FFTResult();

                void analyzeWindow(float *window);
                void finalize();

                int length() const { return _dataSize; }

                float avgAt(int x);
                float maxAt(int x);
                float minAt(int x);

                float minimum() const { return _minimum; }
                float maximum() const { return _maximum; }

                Gdk::Color get_color() const { return _color; }

        private:
                FFTResult(FFTGraph *graph, Gdk::Color color, std::string trackname);

                int     _averages;

                float*  _data_avg;
                float*  _data_max;
                float*  _data_min;

                float*  _work;

                int     _windowSize;
                int     _dataSize;

                float   _minimum;
                float   _maximum;

                FFTGraph *_graph;

                Gdk::Color _color;
                std::string _trackname;

        friend class FFTGraph;
};

#endif /* __ardour_fft_result_h */