1 /*
2  * GStreamer
3  * Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
4  * Copyright (C) 2006 Stefan Kost <ensonic@users.sf.net>
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Library General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Library General Public License for more details.
15  *
16  * You should have received a copy of the GNU Library General Public
17  * License along with this library; if not, write to the
18  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
19  * Boston, MA 02110-1301, USA.
20  */
21 
22 #ifndef __GST_AUDIO_AMPLIFY_H__
23 #define __GST_AUDIO_AMPLIFY_H__
24 
25 #include <gst/gst.h>
26 #include <gst/base/gstbasetransform.h>
27 #include <gst/audio/audio.h>
28 #include <gst/audio/gstaudiofilter.h>
29 
30 G_BEGIN_DECLS
31 #define GST_TYPE_AUDIO_AMPLIFY            (gst_audio_amplify_get_type())
32 #define GST_AUDIO_AMPLIFY(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_AMPLIFY,GstAudioAmplify))
33 #define GST_IS_AUDIO_AMPLIFY(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_AMPLIFY))
34 #define GST_AUDIO_AMPLIFY_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_AMPLIFY,GstAudioAmplifyClass))
35 #define GST_IS_AUDIO_AMPLIFY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_AMPLIFY))
36 #define GST_AUDIO_AMPLIFY_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_AMPLIFY,GstAudioAmplifyClass))
37 typedef struct _GstAudioAmplify GstAudioAmplify;
38 typedef struct _GstAudioAmplifyClass GstAudioAmplifyClass;
39 
40 typedef void (*GstAudioAmplifyProcessFunc) (GstAudioAmplify *, void *, guint);
41 
42 struct _GstAudioAmplify
43 {
44   GstAudioFilter audiofilter;
45 
46   gfloat amplification;
47 
48   /* < private > */
49   GstAudioAmplifyProcessFunc process;
50   gint clipping_method;
51   GstAudioFormat format;
52 };
53 
54 struct _GstAudioAmplifyClass
55 {
56   GstAudioFilterClass parent;
57 };
58 
59 GType gst_audio_amplify_get_type (void);
60 
61 G_END_DECLS
62 #endif /* __GST_AUDIO_AMPLIFY_H__ */
63