1 /* screenshotsrc: Screenshot plugin for GStreamer
2  *
3  * This library is free software; you can redistribute it and/or
4  * modify it under the terms of the GNU Library General Public
5  * License as published by the Free Software Foundation; either
6  * version 2 of the License, or (at your option) any later version.
7  *
8  * This library is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
11  * Library General Public License for more details.
12  *
13  * You should have received a copy of the GNU Library General Public
14  * License along with this library; if not, write to the
15  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
16  * Boston, MA 02110-1301, USA.
17  */
18 
19 #ifndef __GST_XIMAGE_SRC_H__
20 #define __GST_XIMAGE_SRC_H__
21 
22 #include <gst/gst.h>
23 #include <gst/base/gstpushsrc.h>
24 #include "ximageutil.h"
25 
26 #ifdef HAVE_XFIXES
27 #include <X11/extensions/Xfixes.h>
28 #endif
29 #ifdef HAVE_XDAMAGE
30 #include <X11/extensions/Xdamage.h>
31 #endif
32 
33 G_BEGIN_DECLS
34 
35 #define GST_TYPE_XIMAGE_SRC (gst_ximage_src_get_type())
36 #define GST_XIMAGE_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_XIMAGE_SRC,GstXImageSrc))
37 #define GST_XIMAGE_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_XIMAGE_SRC,GstXImageSrc))
38 #define GST_IS_XIMAGE_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_XIMAGE_SRC))
39 #define GST_IS_XIMAGE_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_XIMAGE_SRC))
40 
41 typedef struct _GstXImageSrc GstXImageSrc;
42 typedef struct _GstXImageSrcClass GstXImageSrcClass;
43 
44 GType gst_ximage_src_get_type (void) G_GNUC_CONST;
45 
46 struct _GstXImageSrc
47 {
48   GstPushSrc parent;
49 
50   /* Information on display */
51   GstXContext *xcontext;
52   gint x;
53   gint y;
54   gint width;
55   gint height;
56 
57   Window xwindow;
58   gchar *display_name;
59 
60   /* Window selection */
61   guint64 xid;
62   gchar *xname;
63 
64   /* Desired output framerate */
65   gint fps_n;
66   gint fps_d;
67 
68   /* for framerate sync */
69   GstClockID clock_id;
70   gint64 last_frame_no;
71 
72   /* Protect X Windows calls */
73   GMutex  x_lock;
74 
75   /* Gathered pool of emitted buffers */
76   GMutex  pool_lock;
77   GSList *buffer_pool;
78 
79   /* XFixes and XDamage support */
80   gboolean have_xfixes;
81   gboolean have_xdamage;
82   gboolean show_pointer;
83   gboolean use_damage;
84 
85   /* co-ordinates for start and end */
86   guint startx;
87   guint starty;
88   guint endx;
89   guint endy;
90 
91   /* whether to use remote friendly calls */
92   gboolean remote;
93 
94 #ifdef HAVE_XFIXES
95   int fixes_event_base;
96   XFixesCursorImage *cursor_image;
97 #endif
98 #ifdef HAVE_XDAMAGE
99   Damage damage;
100   int damage_event_base;
101   XserverRegion damage_region;
102   GC damage_copy_gc;
103   GstBuffer *last_ximage;
104 #endif
105 };
106 
107 struct _GstXImageSrcClass
108 {
109   GstPushSrcClass parent_class;
110 };
111 
112 G_END_DECLS
113 
114 #endif /* __GST_XIMAGE_SRC_H__ */
115