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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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GType gst_interpolation_control_source_get_type (void);
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/* Functions */
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GstControlSource * gst_interpolation_control_source_new (void);
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#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstInterpolationControlSource, gst_object_unref)
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#endif
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G_END_DECLS
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#endif /* __GST_INTERPOLATION_CONTROL_SOURCE_H__ */
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