1 /*
2  * GStreamer
3  * Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
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_DYNAMIC_H__
22 #define __GST_AUDIO_DYNAMIC_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 G_BEGIN_DECLS
30 
31 #define GST_TYPE_AUDIO_DYNAMIC            (gst_audio_dynamic_get_type())
32 #define GST_AUDIO_DYNAMIC(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_DYNAMIC,GstAudioDynamic))
33 #define GST_IS_AUDIO_DYNAMIC(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_DYNAMIC))
34 #define GST_AUDIO_DYNAMIC_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_DYNAMIC,GstAudioDynamicClass))
35 #define GST_IS_AUDIO_DYNAMIC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_DYNAMIC))
36 #define GST_AUDIO_DYNAMIC_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_DYNAMIC,GstAudioDynamicClass))
37 typedef struct _GstAudioDynamic GstAudioDynamic;
38 typedef struct _GstAudioDynamicClass GstAudioDynamicClass;
39 
40 typedef void (*GstAudioDynamicProcessFunc) (GstAudioDynamic *, guint8 *, guint);
41 
42 struct _GstAudioDynamic
43 {
44   GstAudioFilter audiofilter;
45 
46   /* < private > */
47   GstAudioDynamicProcessFunc process;
48   gint characteristics;
49   gint mode;
50   gfloat threshold;
51   gfloat ratio;
52 };
53 
54 struct _GstAudioDynamicClass
55 {
56   GstAudioFilterClass parent;
57 };
58 
59 GType gst_audio_dynamic_get_type (void);
60 
61 G_END_DECLS
62 
63 #endif /* __GST_AUDIO_DYNAMIC_H__ */
64