mirror of
https://github.com/cookiengineer/audacity
synced 2025-05-02 16:49:41 +02:00
f52dfd3ac3
... note the swap of target_link_libraries lines in src/CMakeLists.txt, needed to build at least on macOS, becuase FFT.h must be looked up first in lib-math, not in lib-src/twolame Also making a dependency cycle of SampleFormat and Dither! But we will tolerate that within one small library.
33 lines
746 B
C++
33 lines
746 B
C++
#ifndef __realfftf_h
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#define __realfftf_h
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#include "MemoryX.h"
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using fft_type = float;
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struct FFTParam {
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ArrayOf<int> BitReversed;
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ArrayOf<fft_type> SinTable;
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size_t Points;
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#ifdef EXPERIMENTAL_EQ_SSE_THREADED
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int pow2Bits;
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#endif
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};
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struct MATH_API FFTDeleter{
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void operator () (FFTParam *p) const;
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};
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using HFFT = std::unique_ptr<
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FFTParam, FFTDeleter
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>;
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MATH_API HFFT GetFFT(size_t);
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MATH_API void RealFFTf(fft_type *, const FFTParam *);
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MATH_API void InverseRealFFTf(fft_type *, const FFTParam *);
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MATH_API void ReorderToTime(const FFTParam *hFFT, const fft_type *buffer, fft_type *TimeOut);
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MATH_API void ReorderToFreq(const FFTParam *hFFT, const fft_type *buffer,
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fft_type *RealOut, fft_type *ImagOut);
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#endif
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