gstreamer/subprojects/gst-plugins-base/gst-libs/gst/fft/gstfftf32.h

71 lines
1.9 KiB
C

/* GStreamer
* Copyright (C) <2007> Sebastian Dröge <slomo@circular-chaos.org>
*
* 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_F32_H__
#define __GST_FFT_F32_H__
#include <glib.h>
#include <gst/gst.h>
#include "gstfft.h"
G_BEGIN_DECLS
typedef struct _GstFFTF32 GstFFTF32;
typedef struct _GstFFTF32Complex GstFFTF32Complex;
/* Copy of kiss_fft_f32_cpx for documentation reasons,
* do NOT change! */
/**
* GstFFTF32Complex:
* @r: Real part
* @i: Imaginary part
*
* Data type for complex numbers composed of
* 32 bit float.
*/
struct _GstFFTF32Complex
{
gfloat r;
gfloat i;
};
/* Functions */
GST_FFT_API
GstFFTF32 * gst_fft_f32_new (gint len, gboolean inverse);
GST_FFT_API
void gst_fft_f32_free (GstFFTF32 *self);
GST_FFT_API
void gst_fft_f32_fft (GstFFTF32 *self, const gfloat *timedata,
GstFFTF32Complex *freqdata);
GST_FFT_API
void gst_fft_f32_inverse_fft (GstFFTF32 *self, const GstFFTF32Complex *freqdata,
gfloat *timedata);
GST_FFT_API
void gst_fft_f32_window (GstFFTF32 *self, gfloat *timedata, GstFFTWindow window);
G_END_DECLS
#endif /* __GST_FFT_F32_H__ */