CoolVLViewer/include/gstreamer-1.0/gst/fft/gstfftf64.h

/* GStreamer
 * Copyright (C) <2007> Sebastian Dröge <[email protected]>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#ifndef __GST_FFT_F64_H__
#define __GST_FFT_F64_H__

#include <glib.h>
#include <gst/gst.h>

#include "gstfft.h"

G_BEGIN_DECLS

typedef struct _GstFFTF64 GstFFTF64;
typedef struct _GstFFTF64Complex GstFFTF64Complex;

/* Copy of kiss_fft_f64_cpx for documentation reasons,
 * do NOT change! */

/**
 * GstFFTF64Complex:
 * @r: Real part
 * @i: Imaginary part
 *
 * Data type for complex numbers composed of
 * 64 bit float.
 */
struct _GstFFTF64Complex
{
  gdouble r;
  gdouble i;
};

/* Functions */
GstFFTF64 *     gst_fft_f64_new         (gint len, gboolean inverse);
void            gst_fft_f64_free        (GstFFTF64 *self);

void            gst_fft_f64_fft         (GstFFTF64 *self, const gdouble *timedata,
                                         GstFFTF64Complex *freqdata);
void            gst_fft_f64_inverse_fft (GstFFTF64 *self, const GstFFTF64Complex *freqdata,
                                         gdouble *timedata);

void            gst_fft_f64_window      (GstFFTF64 *self, gdouble *timedata, GstFFTWindow window);

G_END_DECLS

#endif /* __GST_FFT_F64_H__ */