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 57 GST_ELEMENT_REGISTER_DECLARE (wavescope); 58 59 G_END_DECLS 60 #endif /* __GST_WAVE_SCOPE_H__ */ 61