1 /* GStreamer
2  * Copyright (C) <2011> Stefan Kost <ensonic@users.sf.net>
3  *
4  * gstwavescope.h: simple oscilloscope
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_WAVE_SCOPE_H__
23 #define __GST_WAVE_SCOPE_H__
24 
25 #include "gst/pbutils/gstaudiovisualizer.h"
26 
27 G_BEGIN_DECLS
28 #define GST_TYPE_WAVE_SCOPE            (gst_wave_scope_get_type())
29 #define GST_WAVE_SCOPE(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WAVE_SCOPE,GstWaveScope))
30 #define GST_WAVE_SCOPE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_WAVE_SCOPE,GstWaveScopeClass))
31 #define GST_IS_WAVE_SCOPE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_WAVE_SCOPE))
32 #define GST_IS_WAVE_SCOPE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_WAVE_SCOPE))
33 typedef struct _GstWaveScope GstWaveScope;
34 typedef struct _GstWaveScopeClass GstWaveScopeClass;
35 
36 typedef void (*GstWaveScopeProcessFunc) (GstAudioVisualizer *, guint32 *, gint16 *, guint);
37 
38 struct _GstWaveScope
39 {
40   GstAudioVisualizer parent;
41 
42   /* < private > */
43   GstWaveScopeProcessFunc process;
44   gint style;
45 
46   /* filter specific data */
47   gdouble *flt;
48 };
49 
50 struct _GstWaveScopeClass
51 {
52   GstAudioVisualizerClass parent_class;
53 };
54 
55 GType gst_wave_scope_get_type (void);
56 gboolean gst_wave_scope_plugin_init (GstPlugin * plugin);
57 
58 G_END_DECLS
59 #endif /* __GST_WAVE_SCOPE_H__ */
60