fftreal_wrapper.h Example File

multimedia/spectrum/3rdparty/fftreal/fftreal_wrapper.h
/*************************************************************************** ** ** Copyright (C) 2015 The Qt Company Ltd. ** Contact: http://www.qt.io/licensing/ ** ** This file is part of the examples of the Qt Toolkit. ** ** This program is free software: you can redistribute it and/or modify ** it under the terms of the GNU Lesser General Public License as ** published by the Free Software Foundation, either version 2.1. 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, see ** <http://www.gnu.org/licenses/>. ** ***************************************************************************/
#ifndef FFTREAL_WRAPPER_H #define FFTREAL_WRAPPER_H #include <QtCore/QtGlobal> #if defined(FFTREAL_LIBRARY) # define FFTREAL_EXPORT Q_DECL_EXPORT #else # define FFTREAL_EXPORT Q_DECL_IMPORT #endif class FFTRealWrapperPrivate; // Each pass of the FFT processes 2^X samples, where X is the // number below. static const int FFTLengthPowerOfTwo = 12; /** * Wrapper around the FFTRealFixLen template provided by the FFTReal * library * * This class instantiates a single instance of FFTRealFixLen, using * FFTLengthPowerOfTwo as the template parameter. It then exposes * FFTRealFixLen<FFTLengthPowerOfTwo>::do_fft via the calculateFFT * function, thereby allowing an application to dynamically link * against the FFTReal implementation. * * See http://ldesoras.free.fr/prod.html */ class FFTREAL_EXPORT FFTRealWrapper { public: FFTRealWrapper(); ~FFTRealWrapper(); typedef float DataType; void calculateFFT(DataType in[], const DataType out[]); private: FFTRealWrapperPrivate* m_private; }; #endif // FFTREAL_WRAPPER_H

© 2020 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.