1/* GStreamer
2 * Copyright (C) <2007> Sebastian Dröge <slomo@circular-chaos.org>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20#ifndef __GST_FFT_F32_H__
21#define __GST_FFT_F32_H__
22
23#include <glib.h>
24#include <gst/gst.h>
25
26#include "gstfft.h"
27
28G_BEGIN_DECLS
29
30typedef struct _GstFFTF32 GstFFTF32;
31typedef struct _GstFFTF32Complex GstFFTF32Complex;
32
33/* Copy of kiss_fft_f32_cpx for documentation reasons,
34 * do NOT change! */
35
36/**
37 * GstFFTF32Complex:
38 * @r: Real part
39 * @i: Imaginary part
40 *
41 * Data type for complex numbers composed of
42 * 32 bit float.
43 */
44struct _GstFFTF32Complex
45{
46 gfloat r;
47 gfloat i;
48};
49
50/* Functions */
51
52GST_FFT_API
53GstFFTF32 * gst_fft_f32_new (gint len, gboolean inverse);
54
55GST_FFT_API
56void gst_fft_f32_free (GstFFTF32 *self);
57
58GST_FFT_API
59void gst_fft_f32_fft (GstFFTF32 *self, const gfloat *timedata,
60 GstFFTF32Complex *freqdata);
61
62GST_FFT_API
63void gst_fft_f32_inverse_fft (GstFFTF32 *self, const GstFFTF32Complex *freqdata,
64 gfloat *timedata);
65
66GST_FFT_API
67void gst_fft_f32_window (GstFFTF32 *self, gfloat *timedata, GstFFTWindow window);
68
69G_END_DECLS
70
71#endif /* __GST_FFT_F32_H__ */
72