gstreamer/libs/gst/controller/gstcontrolbindingargb.h
Stefan Sauer b23977cb93 controller: allow different controlbindings
Make controlbinding an abstract baseclass. Move implementation to control-
binding-direct and add a control-binding-argb. Add an example.
2012-01-23 11:03:43 +01:00

98 lines
3.1 KiB
C

/* GStreamer
*
* Copyright (C) 2011 Stefan Sauer <ensonic@users.sf.net>
*
* gstcontrolbindingargb.h: Attachment for multiple control sources to gargb
* properties
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_CONTROL_BINDING_ARGB_H__
#define __GST_CONTROL_BINDING_ARGB_H__
#include <gst/gstconfig.h>
#include <glib-object.h>
#include <gst/gstcontrolsource.h>
G_BEGIN_DECLS
#define GST_TYPE_CONTROL_BINDING_ARGB \
(gst_control_binding_argb_get_type())
#define GST_CONTROL_BINDING_ARGB(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CONTROL_BINDING_ARGB,GstControlBindingARGB))
#define GST_CONTROL_BINDING_ARGB_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CONTROL_BINDING_ARGB,GstControlBindingARGBClass))
#define GST_IS_CONTROL_BINDING_ARGB(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CONTROL_BINDING_ARGB))
#define GST_IS_CONTROL_BINDING_ARGB_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CONTROL_BINDING_ARGB))
#define GST_CONTROL_BINDING_ARGB_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_CONTOL_SOURCE, GstControlBindingARGBClass))
typedef struct _GstControlBindingARGB GstControlBindingARGB;
typedef struct _GstControlBindingARGBClass GstControlBindingARGBClass;
/**
* GstControlBindingARGB:
* @name: name of the property of this binding
*
* The instance structure of #GstControlBindingARGB.
*/
struct _GstControlBindingARGB {
GstControlBinding parent;
/*< private >*/
GstControlSource *cs_a; /* GstControlSources for this property */
GstControlSource *cs_r;
GstControlSource *cs_g;
GstControlSource *cs_b;
GValue cur_value;
guint32 last_value;
gpointer _gst_reserved[GST_PADDING];
};
/**
* GstControlBindingARGBClass:
* @parent_class: Parent class
* @convert: Class method to convert control-values
*
* The class structure of #GstControlBindingARGB.
*/
struct _GstControlBindingARGBClass
{
GstControlBindingClass parent_class;
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
GType gst_control_binding_argb_get_type (void);
/* Functions */
GstControlBinding * gst_control_binding_argb_new (GstObject * object, const gchar * property_name,
GstControlSource * cs_a, GstControlSource * cs_r,
GstControlSource * cs_g, GstControlSource * cs_b);
G_END_DECLS
#endif /* __GST_CONTROL_BINDING_ARGB_H__ */