1 /*
2  * GStreamer
3  * Copyright (C) 2011 Stefan Sauer <ensonic@users.sf.net>
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_FREEVERB_H__
22 #define __GST_FREEVERB_H__
23 
24 #include <gst/gst.h>
25 #include <gst/audio/audio.h>
26 #include <gst/base/gstbasetransform.h>
27 
28 G_BEGIN_DECLS
29 
30 #define GST_TYPE_FREEVERB            (gst_freeverb_get_type())
31 #define GST_FREEVERB(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FREEVERB,GstFreeverb))
32 #define GST_IS_FREEVERB(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FREEVERB))
33 #define GST_FREEVERB_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_FREEVERB,GstFreeverbClass))
34 #define GST_IS_FREEVERB_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_FREEVERB))
35 #define GST_FREEVERB_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_FREEVERB,GstFreeverbClass))
36 
37 typedef struct _GstFreeverb        GstFreeverb;
38 typedef struct _GstFreeverbClass   GstFreeverbClass;
39 typedef struct _GstFreeverbPrivate GstFreeverbPrivate;
40 
41 typedef gboolean (*GstFreeverbProcessFunc)(GstFreeverb*, guint8*, guint8*, guint);
42 
43 struct _GstFreeverb {
44   GstBaseTransform element;
45 
46   /* < private > */
47   gfloat room_size;
48   gfloat damping;
49   gfloat pan_width;
50   gfloat level;
51 
52   GstFreeverbProcessFunc process;
53   GstAudioInfo info;
54 
55   gboolean drained;
56 
57   GstFreeverbPrivate *priv;
58 };
59 
60 struct _GstFreeverbClass {
61   GstBaseTransformClass parent_class;
62 };
63 
64 GType gst_freeverb_get_type (void);
65 
66 G_END_DECLS
67 
68 #endif /* __GST_FREEVERB_H__ */
69