1 /* GStreamer Color Balance
2  * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
3  *
4  * colorbalancechannel.h: individual channel object
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Library General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Library General Public License for more details.
15  *
16  * You should have received a copy of the GNU Library General Public
17  * License along with this library; if not, write to the
18  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
19  * Boston, MA 02110-1301, USA.
20  */
21 
22 #ifndef __GST_COLOR_BALANCE_CHANNEL_H__
23 #define __GST_COLOR_BALANCE_CHANNEL_H__
24 
25 #include <gst/gst.h>
26 #include <gst/video/video-prelude.h>
27 
28 G_BEGIN_DECLS
29 
30 #define GST_TYPE_COLOR_BALANCE_CHANNEL \
31   (gst_color_balance_channel_get_type ())
32 #define GST_COLOR_BALANCE_CHANNEL(obj) \
33   (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_COLOR_BALANCE_CHANNEL, \
34                                GstColorBalanceChannel))
35 #define GST_COLOR_BALANCE_CHANNEL_CLASS(klass) \
36   (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_COLOR_BALANCE_CHANNEL, \
37                             GstColorBalanceChannelClass))
38 #define GST_IS_COLOR_BALANCE_CHANNEL(obj) \
39   (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_COLOR_BALANCE_CHANNEL))
40 #define GST_IS_COLOR_BALANCE_CHANNEL_CLASS(klass) \
41   (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_COLOR_BALANCE_CHANNEL))
42 
43 typedef struct _GstColorBalanceChannel GstColorBalanceChannel;
44 typedef struct _GstColorBalanceChannelClass GstColorBalanceChannelClass;
45 
46 /**
47  * GstColorBalanceChannel:
48  * @label: A string containing a descriptive name for this channel
49  * @min_value: The minimum valid value for this channel.
50  * @max_value: The maximum valid value for this channel.
51  */
52 struct _GstColorBalanceChannel {
53   GObject parent;
54 
55   /*< public >*/
56   gchar  *label;
57   gint    min_value;
58   gint    max_value;
59 
60   /*< private >*/
61   gpointer _gst_reserved[GST_PADDING];
62 };
63 
64 /**
65  * GstColorBalanceChannelClass:
66  * @parent: the parent class
67  * @value_changed: default handler for value changed notification
68  *
69  * Color-balance channel class.
70  */
71 struct _GstColorBalanceChannelClass {
72   GObjectClass parent;
73 
74   /* signals */
75   void (* value_changed) (GstColorBalanceChannel *channel,
76                           gint                    value);
77 
78   /*< private >*/
79   gpointer _gst_reserved[GST_PADDING];
80 };
81 
82 GST_VIDEO_API
83 GType   gst_color_balance_channel_get_type (void);
84 
85 #ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
86 G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstColorBalanceChannel, gst_object_unref)
87 #endif
88 
89 G_END_DECLS
90 
91 #endif /* __GST_COLOR_BALANCE_CHANNEL_H__ */
92