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09141c6e1f
Since we started depending on GLib 2.44, we can be sure this macro is defined (it will be a no-op on compilers that don't support it). For plugins we should just start using `G_DECLARE_FINAL_TYPE` which means we no longer need the macro there, but for most types in core we don't want to break ABI, which means it's better to just keep it like it is (and use the `#ifdef` instead).
102 lines
3.1 KiB
C
102 lines
3.1 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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#include <gst/controller/controller-enumtypes.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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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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GST_CONTROLLER_API
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GType gst_lfo_control_source_get_type (void);
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/* Functions */
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GST_CONTROLLER_API
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GstControlSource *gst_lfo_control_source_new (void);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstLFOControlSource, gst_object_unref)
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G_END_DECLS
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#endif /* __GST_LFO_CONTROL_SOURCE_H__ */
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