3 * Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
5 * gstinterpolationcontrolsource.h: Control source that provides several
6 * interpolation methods
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
24 #ifndef __GST_INTERPOLATION_CONTROL_SOURCE_H__
25 #define __GST_INTERPOLATION_CONTROL_SOURCE_H__
27 #include <glib-object.h>
30 #include <gst/controller/gstcontrolsource.h>
34 #define GST_TYPE_INTERPOLATION_CONTROL_SOURCE \
35 (gst_interpolation_control_source_get_type ())
36 #define GST_INTERPOLATION_CONTROL_SOURCE(obj) \
37 (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_INTERPOLATION_CONTROL_SOURCE, GstInterpolationControlSource))
38 #define GST_INTERPOLATION_CONTROL_SOURCE_CLASS(vtable) \
39 (G_TYPE_CHECK_CLASS_CAST ((vtable), GST_TYPE_INTERPOLATION_CONTROL_SOURCE, GstInterpolationControlSourceClass))
40 #define GST_IS_INTERPOLATION_CONTROL_SOURCE(obj) \
41 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_INTERPOLATION_CONTROL_SOURCE))
42 #define GST_IS_INTERPOLATION_CONTROL_SOURCE_CLASS(vtable) \
43 (G_TYPE_CHECK_CLASS_TYPE ((vtable), GST_TYPE_INTERPOLATION_CONTROL_SOURCE))
44 #define GST_INTERPOLATION_CONTROL_SOURCE_GET_CLASS(inst) \
45 (G_TYPE_INSTANCE_GET_CLASS ((inst), GST_TYPE_INTERPOLATION_CONTROL_SOURCE, GstInterpolationControlSourceClass))
47 typedef struct _GstInterpolationControlSource GstInterpolationControlSource;
48 typedef struct _GstInterpolationControlSourceClass GstInterpolationControlSourceClass;
49 typedef struct _GstInterpolationControlSourcePrivate GstInterpolationControlSourcePrivate;
53 * @GST_INTERPOLATE_NONE: steps-like interpolation, default
54 * @GST_INTERPOLATE_TRIGGER: returns the default value of the property,
55 * except for times with specific values
56 * @GST_INTERPOLATE_LINEAR: linear interpolation
57 * @GST_INTERPOLATE_QUADRATIC: square interpolation (deprecated, maps to cubic)
58 * @GST_INTERPOLATE_CUBIC: cubic interpolation
59 * @GST_INTERPOLATE_USER: user-provided interpolation (not yet available)
61 * The various interpolation modes available.
66 GST_INTERPOLATE_TRIGGER,
67 GST_INTERPOLATE_LINEAR,
68 GST_INTERPOLATE_QUADRATIC,
69 GST_INTERPOLATE_CUBIC,
74 * GstInterpolationControlSource:
76 * The instance structure of #GstControlSource.
78 struct _GstInterpolationControlSource {
79 GstControlSource parent;
83 GstInterpolationControlSourcePrivate *priv;
84 gpointer _gst_reserved[GST_PADDING];
87 struct _GstInterpolationControlSourceClass {
88 GstControlSourceClass parent_class;
91 gpointer _gst_reserved[GST_PADDING];
94 GType gst_interpolation_control_source_get_type (void);
98 GstInterpolationControlSource *gst_interpolation_control_source_new (void);
99 gboolean gst_interpolation_control_source_set_interpolation_mode (GstInterpolationControlSource *self, GstInterpolateMode mode);
100 gboolean gst_interpolation_control_source_set (GstInterpolationControlSource * self, GstClockTime timestamp, const GValue * value);
101 gboolean gst_interpolation_control_source_set_from_list (GstInterpolationControlSource * self, const GSList * timedvalues);
102 gboolean gst_interpolation_control_source_unset (GstInterpolationControlSource * self, GstClockTime timestamp);
103 void gst_interpolation_control_source_unset_all (GstInterpolationControlSource *self);
104 GList *gst_interpolation_control_source_get_all (GstInterpolationControlSource * self);
105 gint gst_interpolation_control_source_get_count (GstInterpolationControlSource * self);
109 #endif /* __GST_INTERPOLATION_CONTROL_SOURCE_H__ */