Mercurial > hg > svcore
view data/fileio/FFTFuzzyAdapter.h @ 1078:ce82bcdc95d0
Fail upfront if the file is going to be too large. We expect the caller to split up large data sets into several MatrixFiles
author | Chris Cannam |
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date | Wed, 10 Jun 2015 13:10:26 +0100 |
parents | 59e7fe1b1003 |
children |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* Sonic Visualiser An audio file viewer and annotation editor. Centre for Digital Music, Queen Mary, University of London. This file copyright 2006 Chris Cannam. 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. See the file COPYING included with this distribution for more information. */ #ifndef _FFT_FUZZY_ADAPTER_H_ #define _FFT_FUZZY_ADAPTER_H_ #include "FFTDataServer.h" class FFTFuzzyAdapter { public: FFTFuzzyAdapter(const DenseTimeValueModel *model, int channel, WindowType windowType, int windowSize, int windowIncrement, int fftSize, bool polar, int fillFromColumn = 0); ~FFTFuzzyAdapter(); int getWidth() const { return m_server->getWidth() >> m_xshift; } int getHeight() const { return m_server->getHeight() >> m_yshift; } float getMagnitudeAt(int x, int y) { return m_server->getMagnitudeAt(x << m_xshift, y << m_yshift); } float getNormalizedMagnitudeAt(int x, int y) { return m_server->getNormalizedMagnitudeAt(x << m_xshift, y << m_yshift); } float getMaximumMagnitudeAt(int x) { return m_server->getMaximumMagnitudeAt(x << m_xshift); } float getPhaseAt(int x, int y) { return m_server->getPhaseAt(x << m_xshift, y << m_yshift); } void getValuesAt(int x, int y, float &real, float &imaginary) { m_server->getValuesAt(x << m_xshift, y << m_yshift, real, imaginary); } bool isColumnReady(int x) { return m_server->isColumnReady(x << m_xshift); } bool isLocalPeak(int x, int y) { float mag = getMagnitudeAt(x, y); if (y > 0 && mag < getMagnitudeAt(x, y - 1)) return false; if (y < getHeight() - 1 && mag < getMagnitudeAt(x, y + 1)) return false; return true; } bool isOverThreshold(int x, int y, float threshold) { return getMagnitudeAt(x, y) > threshold; } int getFillCompletion() const { return m_server->getFillCompletion(); } int getFillExtent() const { return m_server->getFillExtent(); } private: FFTFuzzyAdapter(const FFTFuzzyAdapter &); // not implemented FFTFuzzyAdapter &operator=(const FFTFuzzyAdapter &); // not implemented FFTDataServer *m_server; int m_xshift; int m_yshift; }; #endif