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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).
104 lines
3.7 KiB
C
104 lines
3.7 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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* gstinterpolationcontrolsource.h: Control source that provides several
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* interpolation methods
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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_INTERPOLATION_CONTROL_SOURCE_H__
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#define __GST_INTERPOLATION_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/gsttimedvaluecontrolsource.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_INTERPOLATION_CONTROL_SOURCE \
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(gst_interpolation_control_source_get_type ())
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#define GST_INTERPOLATION_CONTROL_SOURCE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_INTERPOLATION_CONTROL_SOURCE, GstInterpolationControlSource))
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#define GST_INTERPOLATION_CONTROL_SOURCE_CLASS(vtable) \
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(G_TYPE_CHECK_CLASS_CAST ((vtable), GST_TYPE_INTERPOLATION_CONTROL_SOURCE, GstInterpolationControlSourceClass))
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#define GST_IS_INTERPOLATION_CONTROL_SOURCE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_INTERPOLATION_CONTROL_SOURCE))
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#define GST_IS_INTERPOLATION_CONTROL_SOURCE_CLASS(vtable) \
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(G_TYPE_CHECK_CLASS_TYPE ((vtable), GST_TYPE_INTERPOLATION_CONTROL_SOURCE))
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#define GST_INTERPOLATION_CONTROL_SOURCE_GET_CLASS(inst) \
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(G_TYPE_INSTANCE_GET_CLASS ((inst), GST_TYPE_INTERPOLATION_CONTROL_SOURCE, GstInterpolationControlSourceClass))
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typedef struct _GstInterpolationControlSource GstInterpolationControlSource;
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typedef struct _GstInterpolationControlSourceClass GstInterpolationControlSourceClass;
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typedef struct _GstInterpolationControlSourcePrivate GstInterpolationControlSourcePrivate;
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/**
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* GstInterpolationMode:
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* @GST_INTERPOLATION_MODE_NONE: steps-like interpolation, default
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* @GST_INTERPOLATION_MODE_LINEAR: linear interpolation
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* @GST_INTERPOLATION_MODE_CUBIC: cubic interpolation (natural), may overshoot
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* the min or max values set by the control point, but is more 'curvy'
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* @GST_INTERPOLATION_MODE_CUBIC_MONOTONIC: monotonic cubic interpolation, will not
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* produce any values outside of the min-max range set by the control points
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* (Since: 1.8)
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*
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* The various interpolation modes available.
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*/
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typedef enum
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{
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GST_INTERPOLATION_MODE_NONE,
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GST_INTERPOLATION_MODE_LINEAR,
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GST_INTERPOLATION_MODE_CUBIC,
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GST_INTERPOLATION_MODE_CUBIC_MONOTONIC,
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} GstInterpolationMode;
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/**
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* GstInterpolationControlSource:
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*
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* The instance structure of #GstControlSource.
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*/
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struct _GstInterpolationControlSource {
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GstTimedValueControlSource parent;
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/*< private >*/
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GstInterpolationControlSourcePrivate *priv;
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gpointer _gst_reserved[GST_PADDING];
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};
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struct _GstInterpolationControlSourceClass {
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GstTimedValueControlSourceClass 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_interpolation_control_source_get_type (void);
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/* Functions */
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GST_CONTROLLER_API
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GstControlSource * gst_interpolation_control_source_new (void);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstInterpolationControlSource, gst_object_unref)
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G_END_DECLS
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#endif /* __GST_INTERPOLATION_CONTROL_SOURCE_H__ */
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