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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.
110 lines
4.3 KiB
C
110 lines
4.3 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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, 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/gstcontrolsource.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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* GstInterpolateMode:
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* @GST_INTERPOLATE_NONE: steps-like interpolation, default
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* @GST_INTERPOLATE_TRIGGER: returns the default value of the property,
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* except for times with specific values
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* @GST_INTERPOLATE_LINEAR: linear interpolation
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* @GST_INTERPOLATE_QUADRATIC: square interpolation (deprecated, maps to cubic)
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* @GST_INTERPOLATE_CUBIC: cubic interpolation
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* @GST_INTERPOLATE_USER: user-provided interpolation (not yet available)
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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_INTERPOLATE_NONE,
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GST_INTERPOLATE_TRIGGER,
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GST_INTERPOLATE_LINEAR,
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GST_INTERPOLATE_QUADRATIC,
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GST_INTERPOLATE_CUBIC,
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GST_INTERPOLATE_USER
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} GstInterpolateMode;
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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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GstControlSource parent;
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/* <private> */
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GMutex *lock;
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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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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_interpolation_control_source_get_type (void);
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/* Functions */
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GstInterpolationControlSource *gst_interpolation_control_source_new (void);
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gboolean gst_interpolation_control_source_set_interpolation_mode (GstInterpolationControlSource *self, GstInterpolateMode mode);
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gboolean gst_interpolation_control_source_set (GstInterpolationControlSource * self, GstClockTime timestamp, const GValue * value);
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gboolean gst_interpolation_control_source_set_from_list (GstInterpolationControlSource * self, const GSList * timedvalues);
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gboolean gst_interpolation_control_source_unset (GstInterpolationControlSource * self, GstClockTime timestamp);
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void gst_interpolation_control_source_unset_all (GstInterpolationControlSource *self);
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GList *gst_interpolation_control_source_get_all (GstInterpolationControlSource * self);
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gint gst_interpolation_control_source_get_count (GstInterpolationControlSource * self);
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G_END_DECLS
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#endif /* __GST_INTERPOLATION_CONTROL_SOURCE_H__ */
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