1/*---------------------------------------------------------------------------*
2 *  fft.h  *
3 *                                                                           *
4 *  Copyright 2007, 2008 Nuance Communciations, Inc.                               *
5 *                                                                           *
6 *  Licensed under the Apache License, Version 2.0 (the 'License');          *
7 *  you may not use this file except in compliance with the License.         *
8 *                                                                           *
9 *  You may obtain a copy of the License at                                  *
10 *      http://www.apache.org/licenses/LICENSE-2.0                           *
11 *                                                                           *
12 *  Unless required by applicable law or agreed to in writing, software      *
13 *  distributed under the License is distributed on an 'AS IS' BASIS,        *
14 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
15 *  See the License for the specific language governing permissions and      *
16 *  limitations under the License.                                           *
17 *                                                                           *
18 *---------------------------------------------------------------------------*/
19
20
21
22
23#ifndef _h_fft_
24#define _h_fft_
25
26
27#include "fronttyp.h"
28
29/*  These are the data objects associated with the FFT and IFFT
30**  which generate the modulated carriers
31*/
32
33
34#include "sp_fft.h"
35
36int  fft_perform_and_magsq(fft_info *fft);
37void do_magsq(fft_info *fft);
38
39void configure_fft(fft_info *fft, int size);
40int  place_sample_data(fft_info *fft, fftdata *seq, fftdata *smooth, int num);
41void unconfigure_fft(fft_info *fft);
42
43
44#endif /* _h_fft_ */
45