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104 lines
3.2 KiB
C
104 lines
3.2 KiB
C
/* GStreamer
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*
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* Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
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*
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* gstlfocontrolsource.h: Control source that provides some periodic waveforms
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* as control values.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_LFO_CONTROL_SOURCE_H__
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#define __GST_LFO_CONTROL_SOURCE_H__
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#include <glib-object.h>
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define GST_TYPE_LFO_CONTROL_SOURCE \
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(gst_lfo_control_source_get_type ())
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#define GST_LFO_CONTROL_SOURCE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_LFO_CONTROL_SOURCE, GstLFOControlSource))
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#define GST_LFO_CONTROL_SOURCE_CLASS(vtable) \
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(G_TYPE_CHECK_CLASS_CAST ((vtable), GST_TYPE_LFO_CONTROL_SOURCE, GstLFOControlSourceClass))
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#define GST_IS_LFO_CONTROL_SOURCE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_LFO_CONTROL_SOURCE))
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#define GST_IS_LFO_CONTROL_SOURCE_CLASS(vtable) \
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(G_TYPE_CHECK_CLASS_TYPE ((vtable), GST_TYPE_LFO_CONTROL_SOURCE))
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#define GST_LFO_CONTROL_SOURCE_GET_CLASS(inst) \
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(G_TYPE_INSTANCE_GET_CLASS ((inst), GST_TYPE_LFO_CONTROL_SOURCE, GstLFOControlSourceClass))
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#define GST_TYPE_LFO_WAVEFORM (gst_lfo_waveform_get_type ())
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typedef struct _GstLFOControlSource GstLFOControlSource;
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typedef struct _GstLFOControlSourceClass GstLFOControlSourceClass;
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typedef struct _GstLFOControlSourcePrivate GstLFOControlSourcePrivate;
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/**
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* GstLFOWaveform:
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* @GST_LFO_WAVEFORM_SINE: sine waveform
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* @GST_LFO_WAVEFORM_SQUARE: square waveform
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* @GST_LFO_WAVEFORM_SAW: saw waveform
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* @GST_LFO_WAVEFORM_REVERSE_SAW: reverse saw waveform
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* @GST_LFO_WAVEFORM_TRIANGLE: triangle waveform
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*
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* The various waveform modes available.
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*/
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typedef enum
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{
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GST_LFO_WAVEFORM_SINE,
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GST_LFO_WAVEFORM_SQUARE,
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GST_LFO_WAVEFORM_SAW,
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GST_LFO_WAVEFORM_REVERSE_SAW,
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GST_LFO_WAVEFORM_TRIANGLE
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} GstLFOWaveform;
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/**
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* GstLFOControlSource:
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*
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* The instance structure of #GstControlSource.
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*/
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struct _GstLFOControlSource {
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GstControlSource parent;
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/* <private> */
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GstLFOControlSourcePrivate *priv;
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GMutex lock;
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gpointer _gst_reserved[GST_PADDING];
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};
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struct _GstLFOControlSourceClass {
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GstControlSourceClass parent_class;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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GType gst_lfo_control_source_get_type (void);
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GType gst_lfo_waveform_get_type (void);
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/* Functions */
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GstControlSource *gst_lfo_control_source_new (void);
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#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstLFOControlSource, gst_object_unref)
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#endif
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G_END_DECLS
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#endif /* __GST_LFO_CONTROL_SOURCE_H__ */
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