mirror of
https://github.com/clementine-player/Clementine
synced 2024-12-25 09:10:49 +01:00
69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
/* GStreamer FFTW-based signal-to-spectrum converter
|
|
* Copyright (C) 2006 Joseph Rabinoff <bobqwatson@yahoo.com>
|
|
*/
|
|
|
|
/***************************************************************************
|
|
* *
|
|
* This program is free software; you can redistribute it and/or modify *
|
|
* it under the terms of the GNU General Public License as published by *
|
|
* the Free Software Foundation; either version 2 of the License, or *
|
|
* (at your option) any later version. *
|
|
* *
|
|
***************************************************************************/
|
|
|
|
|
|
#ifndef __GST_FFTWSPECTRUM_H__
|
|
#define __GST_FFTWSPECTRUM_H__
|
|
|
|
#include <gst/gst.h>
|
|
#include <fftw3.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/* #defines don't like whitespacey bits */
|
|
#define GST_TYPE_FFTWSPECTRUM \
|
|
(gst_fftwspectrum_get_type())
|
|
#define GST_FFTWSPECTRUM(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FFTWSPECTRUM,GstFFTWSpectrum))
|
|
#define GST_FFTWSPECTRUM_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FFTWSPECTRUM,GstFFTWSpectrumClass))
|
|
|
|
typedef struct _GstFFTWSpectrum GstFFTWSpectrum;
|
|
typedef struct _GstFFTWSpectrumClass GstFFTWSpectrumClass;
|
|
|
|
struct _GstFFTWSpectrum
|
|
{
|
|
GstElement element;
|
|
|
|
GstPad *sinkpad, *srcpad;
|
|
|
|
/* Stream data */
|
|
gint rate, size, step;
|
|
|
|
/* Actual queued (incoming) stream */
|
|
gdouble *samples;
|
|
gint numsamples;
|
|
GstClockTime timestamp; /* Timestamp of the first sample */
|
|
guint64 offset; /* Offset of the first sample */
|
|
|
|
/* State data for fftw */
|
|
double *fftw_in;
|
|
double *fftw_out;
|
|
fftw_plan fftw_plan;
|
|
|
|
/* Properties */
|
|
gint32 def_size, def_step;
|
|
gboolean hi_q;
|
|
};
|
|
|
|
struct _GstFFTWSpectrumClass
|
|
{
|
|
GstElementClass parent_class;
|
|
};
|
|
|
|
GType gst_fftwspectrum_get_type (void);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_FFTWSPECTRUM_H__ */
|