gstreamer/gst-libs/gst/fft/gstffts32.h
2012-11-03 23:05:09 +00:00

63 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_S32_H__
#define __GST_FFT_S32_H__
#include <glib.h>
#include <gst/gst.h>
#include "gstfft.h"
G_BEGIN_DECLS
typedef struct _GstFFTS32 GstFFTS32;
typedef struct _GstFFTS32Complex GstFFTS32Complex;
/* Copy of kiss_fft_s32_cpx for documentation reasons,
* do NOT change! */
/**
* GstFFTS32Complex:
* @r: Real part
* @i: Imaginary part
*
* Data type for complex numbers composed of
* signed 32 bit integers.
*/
struct _GstFFTS32Complex
{
gint32 r;
gint32 i;
};
/* Functions */
GstFFTS32 * gst_fft_s32_new (gint len, gboolean inverse);
void gst_fft_s32_free (GstFFTS32 *self);
void gst_fft_s32_fft (GstFFTS32 *self, const gint32 *timedata,
GstFFTS32Complex *freqdata);
void gst_fft_s32_inverse_fft (GstFFTS32 *self, const GstFFTS32Complex *freqdata,
gint32 *timedata);
void gst_fft_s32_window (GstFFTS32 *self, gint32 *timedata, GstFFTWindow window);
G_END_DECLS
#endif /* __GST_FFT_S32_H__ */