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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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9a27b9c056
Move the controller to gstobject as a simple delegate. The controller and controlsource are not classes in core. The controlsources stay separate as a lib for now. This way we can avoid the qdata lookups. Also remove controller_init(). There is no more need to link to controller for elements. Also sanitize the API. We now have functions to add properties like we had methods to remove that. That avoids then ref count hacks we had in _new.
100 lines
3.1 KiB
C
100 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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, 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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GstLFOControlSource *gst_lfo_control_source_new (void);
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G_END_DECLS
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#endif /* __GST_LFO_CONTROL_SOURCE_H__ */
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