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_F64_H__ 21 #define __GST_FFT_F64_H__ 22 23 #include <glib.h> 24 #include <gst/gst.h> 25 26 #include "gstfft.h" 27 28 G_BEGIN_DECLS 29 30 typedef struct _GstFFTF64 GstFFTF64; 31 typedef struct _GstFFTF64Complex GstFFTF64Complex; 32 33 /* Copy of kiss_fft_f64_cpx for documentation reasons, 34 * do NOT change! */ 35 36 /** 37 * GstFFTF64Complex: 38 * @r: Real part 39 * @i: Imaginary part 40 * 41 * Data type for complex numbers composed of 42 * 64 bit float. 43 */ 44 struct _GstFFTF64Complex 45 { 46 gdouble r; 47 gdouble i; 48 }; 49 50 /* Functions */ 51 52 GST_FFT_API 53 GstFFTF64 * gst_fft_f64_new (gint len, gboolean inverse); 54 55 GST_FFT_API 56 void gst_fft_f64_free (GstFFTF64 *self); 57 58 GST_FFT_API 59 void gst_fft_f64_fft (GstFFTF64 *self, const gdouble *timedata, 60 GstFFTF64Complex *freqdata); 61 62 GST_FFT_API 63 void gst_fft_f64_inverse_fft (GstFFTF64 *self, const GstFFTF64Complex *freqdata, 64 gdouble *timedata); 65 66 GST_FFT_API 67 void gst_fft_f64_window (GstFFTF64 *self, gdouble *timedata, GstFFTWindow window); 68 69 G_END_DECLS 70 71 #endif /* __GST_FFT_F64_H__ */ 72