1 /*
2  * GStreamer
3  * Copyright (C) 2007-2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Library General Public
7  * License as published by the Free Software Foundation; either
8  * version 2 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * Library General Public License for more details.
14  *
15  * You should have received a copy of the GNU Library General Public
16  * License along with this library; if not, write to the
17  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
18  * Boston, MA 02110-1301, USA.
19  */
20 
21 #ifndef __GST_AUDIO_CHEB_BAND_H__
22 #define __GST_AUDIO_CHEB_BAND_H__
23 
24 #include <gst/gst.h>
25 #include <gst/base/gstbasetransform.h>
26 #include <gst/audio/audio.h>
27 #include <gst/audio/gstaudiofilter.h>
28 
29 #include "audiofxbaseiirfilter.h"
30 
31 G_BEGIN_DECLS
32 #define GST_TYPE_AUDIO_CHEB_BAND            (gst_audio_cheb_band_get_type())
33 #define GST_AUDIO_CHEB_BAND(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_CHEB_BAND,GstAudioChebBand))
34 #define GST_IS_AUDIO_CHEB_BAND(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_CHEB_BAND))
35 #define GST_AUDIO_CHEB_BAND_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_CHEB_BAND,GstAudioChebBandClass))
36 #define GST_IS_AUDIO_CHEB_BAND_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_CHEB_BAND))
37 #define GST_AUDIO_CHEB_BAND_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_CHEB_BAND,GstAudioChebBandClass))
38 typedef struct _GstAudioChebBand GstAudioChebBand;
39 typedef struct _GstAudioChebBandClass GstAudioChebBandClass;
40 
41 struct _GstAudioChebBand
42 {
43   GstAudioFXBaseIIRFilter parent;
44 
45   gint mode;
46   gint type;
47   gint poles;
48   gfloat lower_frequency;
49   gfloat upper_frequency;
50   gfloat ripple;
51 
52   /* < private > */
53   GMutex lock;
54 };
55 
56 struct _GstAudioChebBandClass
57 {
58   GstAudioFXBaseIIRFilterClass parent;
59 };
60 
61 GType gst_audio_cheb_band_get_type (void);
62 
63 G_END_DECLS
64 #endif /* __GST_AUDIO_CHEB_BAND_H__ */
65