gstreamer/gst-libs/gst/fft/gstfft.h
Tim-Philipp Müller 882151502d fft: GST_EXPORT -> GST_FFT_API
We need different export decorators for the different libs.
For now no actual change though, just rename before the release,
and add prelude headers to define the new decorator to GST_EXPORT.
2018-03-13 12:10:29 +00:00

57 lines
1.6 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.
*/
#include <glib.h>
#include <math.h>
#include <gst/gst.h>
#ifndef __GST_FFT_H__
#define __GST_FFT_H__
#include <gst/fft/fft-prelude.h>
G_BEGIN_DECLS
/**
* GstFFTWindow:
* @GST_FFT_WINDOW_RECTANGULAR: Rectangular window
* @GST_FFT_WINDOW_HAMMING: Hamming window
* @GST_FFT_WINDOW_HANN: Hann (sometimes also called Hanning) window
* @GST_FFT_WINDOW_BARTLETT: Bartlett window
* @GST_FFT_WINDOW_BLACKMAN: Blackman window
*
* The various window functions available.
*/
typedef enum
{
GST_FFT_WINDOW_RECTANGULAR,
GST_FFT_WINDOW_HAMMING,
GST_FFT_WINDOW_HANN,
GST_FFT_WINDOW_BARTLETT,
GST_FFT_WINDOW_BLACKMAN
} GstFFTWindow;
/* Functions */
GST_FFT_API
gint gst_fft_next_fast_length (gint n) G_GNUC_CONST;
G_END_DECLS
#endif /* __GST_FFT_H__ */