Mercurial > hg > svcore
view data/fileio/FFTFuzzyAdapter.cpp @ 504:3376dc26dece
* Add FeatureWriter method to set basic track metadata; write it out from
RDFFeatureWriter if present
author | Chris Cannam |
---|---|
date | Fri, 05 Dec 2008 11:09:44 +0000 |
parents | 1a42221a1522 |
children | e802e550a1f2 |
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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. */ #include "FFTFuzzyAdapter.h" #include <cassert> FFTFuzzyAdapter::FFTFuzzyAdapter(const DenseTimeValueModel *model, int channel, WindowType windowType, size_t windowSize, size_t windowIncrement, size_t fftSize, bool polar, size_t fillFromColumn) : m_server(0), m_xshift(0), m_yshift(0) { m_server = FFTDataServer::getFuzzyInstance(model, channel, windowType, windowSize, windowIncrement, fftSize, polar, fillFromColumn); size_t xratio = windowIncrement / m_server->getWindowIncrement(); size_t yratio = m_server->getFFTSize() / fftSize; while (xratio > 1) { if (xratio & 0x1) { std::cerr << "ERROR: FFTFuzzyAdapter: Window increment ratio " << windowIncrement << " / " << m_server->getWindowIncrement() << " must be a power of two" << std::endl; assert(!(xratio & 0x1)); } ++m_xshift; xratio >>= 1; } while (yratio > 1) { if (yratio & 0x1) { std::cerr << "ERROR: FFTFuzzyAdapter: FFT size ratio " << m_server->getFFTSize() << " / " << fftSize << " must be a power of two" << std::endl; assert(!(yratio & 0x1)); } ++m_yshift; yratio >>= 1; } } FFTFuzzyAdapter::~FFTFuzzyAdapter() { FFTDataServer::releaseInstance(m_server); }