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/*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_AUDIO_CHEBYSHEV_FREQ_BAND_H__
#define __GST_AUDIO_CHEBYSHEV_FREQ_BAND_H__
#include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
#include <gst/audio/audio.h>
#include <gst/audio/gstaudiofilter.h>
G_BEGIN_DECLS
#define GST_TYPE_AUDIO_CHEBYSHEV_FREQ_BAND (gst_audio_chebyshev_freq_band_get_type())
#define GST_AUDIO_CHEBYSHEV_FREQ_BAND(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_CHEBYSHEV_FREQ_BAND,GstAudioChebyshevFreqBand))
#define GST_IS_AUDIO_CHEBYSHEV_FREQ_BAND(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_CHEBYSHEV_FREQ_BAND))
#define GST_AUDIO_CHEBYSHEV_FREQ_BAND_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_CHEBYSHEV_FREQ_BAND,GstAudioChebyshevFreqBandClass))
#define GST_IS_AUDIO_CHEBYSHEV_FREQ_BAND_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_CHEBYSHEV_FREQ_BAND))
#define GST_AUDIO_CHEBYSHEV_FREQ_BAND_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_CHEBYSHEV_FREQ_BAND,GstAudioChebyshevFreqBandClass))
typedef struct _GstAudioChebyshevFreqBand GstAudioChebyshevFreqBand;
typedef struct _GstAudioChebyshevFreqBandClass GstAudioChebyshevFreqBandClass;
typedef void (*GstAudioChebyshevFreqBandProcessFunc) (GstAudioChebyshevFreqBand *, guint8 *, guint);
typedef struct
{
gdouble *x;
gint x_pos;
gdouble *y;
gint y_pos;
} GstAudioChebyshevFreqBandChannelCtx;
struct _GstAudioChebyshevFreqBand
{
GstAudioFilter audiofilter;
gint mode;
gint type;
gint poles;
gfloat lower_frequency;
gfloat upper_frequency;
gfloat ripple;
/* < private > */
GstAudioChebyshevFreqBandProcessFunc process;
gboolean have_coeffs;
gdouble *a;
gint num_a;
gdouble *b;
gint num_b;
GstAudioChebyshevFreqBandChannelCtx *channels;
};
struct _GstAudioChebyshevFreqBandClass
{
GstAudioFilterClass parent;
};
GType gst_audio_chebyshev_freq_band_get_type (void);
G_END_DECLS
#endif /* __GST_AUDIO_CHEBYSHEV_FREQ_BAND_H__ */
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