2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2000 Wim Taymans <wtay@chello.be>
4 * 2005 Wim Taymans <wim@fluendo.com>
6 * gstsystemclock.h: A clock implementation based on system time
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
25 #ifndef __GST_SYSTEM_CLOCK_H__
26 #define __GST_SYSTEM_CLOCK_H__
28 #include <gst/gstclock.h>
32 #define GST_TYPE_SYSTEM_CLOCK (gst_system_clock_get_type ())
33 #define GST_SYSTEM_CLOCK(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_SYSTEM_CLOCK, GstSystemClock))
34 #define GST_SYSTEM_CLOCK_CAST(obj) ((GstSystemClock *)(obj))
35 #define GST_IS_SYSTEM_CLOCK(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_SYSTEM_CLOCK))
36 #define GST_SYSTEM_CLOCK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_SYSTEM_CLOCK, GstSystemClockClass))
37 #define GST_IS_SYSTEM_CLOCK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_SYSTEM_CLOCK))
38 #define GST_SYSTEM_CLOCK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_SYSTEM_CLOCK, GstSystemClockClass))
41 typedef struct _GstSystemClock GstSystemClock;
42 typedef struct _GstSystemClockClass GstSystemClockClass;
43 typedef struct _GstSystemClockPrivate GstSystemClockPrivate;
47 * @GST_CLOCK_TYPE_REALTIME: time since Epoch
48 * @GST_CLOCK_TYPE_MONOTONIC: monotonic time since some unspecified starting
50 * @GST_CLOCK_TYPE_OTHER: some other time source is used (Since 1.0.5)
52 * The different kind of clocks.
55 GST_CLOCK_TYPE_REALTIME = 0,
56 GST_CLOCK_TYPE_MONOTONIC = 1,
57 GST_CLOCK_TYPE_OTHER = 2
63 * The default implementation of a #GstClock that uses the system time.
65 struct _GstSystemClock {
69 GstSystemClockPrivate *priv;
71 gpointer _gst_reserved[GST_PADDING];
74 struct _GstSystemClockClass {
75 GstClockClass parent_class;
78 gpointer _gst_reserved[GST_PADDING];
82 GType gst_system_clock_get_type (void);
85 GstClock* gst_system_clock_obtain (void);
88 void gst_system_clock_set_default (GstClock *new_clock);
90 #ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
91 G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstSystemClock, gst_object_unref)
96 #endif /* __GST_SYSTEM_CLOCK_H__ */