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78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
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/* GStreamer
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* Copyright (C) <2007> Sebastian Dröge <slomo@circular-chaos.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_FFT_S16_H__
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#define __GST_FFT_S16_H__
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#include <glib.h>
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#include <gst/gst.h>
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#include "gstfft.h"
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typedef struct _GstFFTS16 GstFFTS16;
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typedef struct _GstFFTS16Complex GstFFTS16Complex;
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/**
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* GstFFTS16:
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*
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* Instance structure for #GstFFTS16.
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*
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*/
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struct _GstFFTS16 {
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/* <private> */
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void *cfg;
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gboolean inverse;
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gint len;
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gpointer _padding[GST_PADDING];
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};
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/* Copy of kiss_fft_s16_cpx for documentation reasons,
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* do NOT change! */
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/**
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* GstFFTS16Complex:
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* @r: Real part
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* @i: Imaginary part
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*
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* Data type for complex numbers composed of
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* signed 16 bit integers.
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*
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*/
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struct _GstFFTS16Complex
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{
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gint16 r;
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gint16 i;
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};
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/* Functions */
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GstFFTS16 * gst_fft_s16_new (gint len, gboolean inverse);
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void gst_fft_s16_fft (GstFFTS16 *self, const gint16 *timedata, GstFFTS16Complex *freqdata);
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void gst_fft_s16_inverse_fft (GstFFTS16 *self, const GstFFTS16Complex *freqdata, gint16 *timedata);
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void gst_fft_s16_free (GstFFTS16 *self);
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void gst_fft_s16_window (GstFFTS16 *self, gint16 *timedata, GstFFTWindow window);
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void gst_fft_s16_magnitude (GstFFTS16 *self, GstFFTS16Complex *freqdata,
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gdouble *magnitude, gboolean decibel);
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void gst_fft_s16_phase (GstFFTS16 *self, GstFFTS16Complex *freqdata,
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gdouble *phase);
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#endif /* __GST_FFT_S16_H__ */
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