kopia lustrzana https://github.com/ogre/habdec
62 wiersze
1.3 KiB
C++
62 wiersze
1.3 KiB
C++
/*
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Copyright 2018 Michal Fratczak
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This file is part of habdec.
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habdec is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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habdec is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with habdec. If not, see <https://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <memory>
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#include <fftw3.h>
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namespace habdec
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{
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class FFT
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{
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public:
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FFT() = default;
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FFT(const FFT&) = delete;
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FFT& operator=(const FFT&) = delete;
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~FFT();
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void setInput(float* p_input, const size_t i_size);
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void setOutput(float* p_output);
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size_t size() const;
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void operator()();
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private:
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void swap_half(); // swaps values on other half of FFT result
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size_t size_ = 0;
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float* p_in_ = 0;
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float* p_out_ = 0;
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// fftw stuff
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fftwf_plan fftw_plan_;
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fftwf_complex* fft_in_ = 0;
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fftwf_complex* fft_out_ = 0;
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};
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} // namespace habdec
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