1 /* Generic video mixer plugin
2  * Copyright (C) 2008 Wim Taymans <wim@fluendo.com>
3  * Copyright (C) 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Library General Public
7  * License as published by the Free Software Foundation; either
8  * version 2 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * Library General Public License for more details.
14  *
15  * You should have received a copy of the GNU Library General Public
16  * License along with this library; if not, write to the
17  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
18  * Boston, MA 02110-1301, USA.
19  */
20 
21 #ifndef __GST_VIDEO_MIXER2_PAD_H__
22 #define __GST_VIDEO_MIXER2_PAD_H__
23 
24 #include <gst/gst.h>
25 #include <gst/video/video.h>
26 
27 #include <gst/base/gstcollectpads.h>
28 
29 G_BEGIN_DECLS
30 
31 #define GST_TYPE_VIDEO_MIXER2_PAD (gst_videomixer2_pad_get_type())
32 #define GST_VIDEO_MIXER2_PAD(obj) \
33         (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_MIXER2_PAD, GstVideoMixer2Pad))
34 #define GST_VIDEO_MIXER2_PAD_CLASS(klass) \
35         (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_MIXER_PAD, GstVideoMixer2PadClass))
36 #define GST_IS_VIDEO_MIXER2_PAD(obj) \
37         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_MIXER2_PAD))
38 #define GST_IS_VIDEO_MIXER2_PAD_CLASS(klass) \
39         (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_MIXER2_PAD))
40 
41 typedef struct _GstVideoMixer2Pad GstVideoMixer2Pad;
42 typedef struct _GstVideoMixer2PadClass GstVideoMixer2PadClass;
43 typedef struct _GstVideoMixer2Collect GstVideoMixer2Collect;
44 
45 /**
46  * GstVideoMixer2Pad:
47  *
48  * The opaque #GstVideoMixer2Pad structure.
49  */
50 struct _GstVideoMixer2Pad
51 {
52   GstPad parent;
53 
54   /* < private > */
55 
56   /* caps */
57   GstVideoInfo info;
58 
59   /* properties */
60   gint xpos, ypos;
61   guint zorder;
62   gdouble alpha;
63 
64   GstVideoMixer2Collect *mixcol;
65 
66   /* caps used for conversion if needed */
67   GstVideoInfo conversion_info;
68 
69   /* Converter, if NULL no conversion is done */
70   GstVideoConverter *convert;
71 
72   gboolean need_conversion_update;
73 };
74 
75 struct _GstVideoMixer2PadClass
76 {
77   GstPadClass parent_class;
78 };
79 
80 GType gst_videomixer2_pad_get_type (void);
81 
82 G_END_DECLS
83 #endif /* __GST_VIDEO_MIXER2_PAD_H__ */
84