1 /*
2  *  Copyright 2009 Nokia Corporation <multimedia@maemo.org>
3  *            2006 Zeeshan Ali <zeeshan.ali@nokia.com>.
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU Lesser General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program 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
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
18  */
19 
20 #ifndef __FPS_DISPLAY_SINK_H__
21 #define __FPS_DISPLAY_SINK_H__
22 
23 #include <gst/gst.h>
24 
25 G_BEGIN_DECLS
26 
27 #define GST_TYPE_FPS_DISPLAY_SINK \
28   (fps_display_sink_get_type())
29 #define GST_FPS_DISPLAY_SINK(obj) \
30   (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FPS_DISPLAY_SINK,GstFPSDisplaySink))
31 #define GST_FPS_DISPLAY_SINK_CLASS(klass) \
32   (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FPS_DISPLAY_SINK,GstFPSDisplaySinkClass))
33 #define GST_IS_FPS_DISPLAY_SINK(obj) \
34   (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FPS_DISPLAY_SINK))
35 #define GST_IS_FPS_DISPLAY_SINK_CLASS(klass) \
36   (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FPS_DISPLAY_SINK))
37 
38 GType fps_display_sink_get_type (void);
39 
40 typedef struct _GstFPSDisplaySink GstFPSDisplaySink;
41 typedef struct _GstFPSDisplaySinkClass GstFPSDisplaySinkClass;
42 
43 struct _GstFPSDisplaySink
44 {
45   GstBin bin;
46 
47   /*< private >*/
48   /* gstreamer components */
49   GstElement *text_overlay;
50   GstElement *video_sink;
51   GstPad *ghost_pad;
52 
53   /* statistics */
54   gint frames_rendered, frames_dropped;  /* ATOMIC */
55   guint64 last_frames_rendered, last_frames_dropped;
56 
57   GstClockTime start_ts;
58   GstClockTime last_ts;
59   GstClockTime interval_ts;
60   guint data_probe_id;
61 
62   /* properties */
63   gboolean sync;
64   gboolean use_text_overlay;
65   gboolean signal_measurements;
66   GstClockTime fps_update_interval;
67   gdouble max_fps;
68   gdouble min_fps;
69   gboolean silent;
70   gchar *last_message;
71 };
72 
73 struct _GstFPSDisplaySinkClass
74 {
75   GstBinClass parent_class;
76 };
77 
78 G_END_DECLS
79 
80 #endif /* __FPS_DISPLAY_SINK_H__ */
81