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annotate dmfft.h @ 749:44138892c784

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Add FFT routines.
author Matti Hamalainen <ccr@tnsp.org>
date Sat, 04 May 2013 23:29:22 +0300
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children e6d807ce715b
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749
44138892c784 Add FFT routines.
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1 #ifndef DMFFT_H
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2 #define DMFFT_H 1
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3
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4 #include "dmlib.h"
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5
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6
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7 typedef double DMFFTType;
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8
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9
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10 typedef struct
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11 {
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12 int npoints;
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13 DMFFTType *sinTable;
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14 int *breversed;
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15 } DMFFTContext;
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16
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17
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18 int dmInitializeFFT(DMFFTContext *, int);
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19 void dmEndFFT(DMFFTContext *);
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20 int dmRealFFT(DMFFTContext *, DMFFTType *);
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21
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22
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23 #endif // DMFFT_H