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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
* 2005 Wim Taymans <wim@fluendo.com>
*
* gstsystemclock.h: A clock implementation based on system time
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_SYSTEM_CLOCK_H__
#define __GST_SYSTEM_CLOCK_H__
#include <gst/gstclock.h>
G_BEGIN_DECLS
#define GST_TYPE_SYSTEM_CLOCK (gst_system_clock_get_type ())
#define GST_SYSTEM_CLOCK(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_SYSTEM_CLOCK, GstSystemClock))
#define GST_SYSTEM_CLOCK_CAST(obj) ((GstSystemClock *)(obj))
#define GST_IS_SYSTEM_CLOCK(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_SYSTEM_CLOCK))
#define GST_SYSTEM_CLOCK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_SYSTEM_CLOCK, GstSystemClockClass))
#define GST_IS_SYSTEM_CLOCK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_SYSTEM_CLOCK))
#define GST_SYSTEM_CLOCK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_SYSTEM_CLOCK, GstSystemClockClass))
typedef struct _GstSystemClock GstSystemClock;
typedef struct _GstSystemClockClass GstSystemClockClass;
typedef struct _GstSystemClockPrivate GstSystemClockPrivate;
/**
* GstClockType:
* @GST_CLOCK_TYPE_REALTIME: time since Epoch
* @GST_CLOCK_TYPE_MONOTONIC: monotonic time since some unspecified starting
* point
* @GST_CLOCK_TYPE_OTHER: some other time source is used (Since: 1.0.5)
* @GST_CLOCK_TYPE_TAI: time since Epoch, but using International Atomic Time
* as reference (Since: 1.18)
*
* The different kind of clocks.
*/
typedef enum {
GST_CLOCK_TYPE_REALTIME = 0,
GST_CLOCK_TYPE_MONOTONIC = 1,
GST_CLOCK_TYPE_OTHER = 2,
GST_CLOCK_TYPE_TAI = 3
} GstClockType;
/**
* GstSystemClock:
*
* The default implementation of a #GstClock that uses the system time.
*/
struct _GstSystemClock {
GstClock clock;
/*< private >*/
GstSystemClockPrivate *priv;
gpointer _gst_reserved[GST_PADDING];
};
struct _GstSystemClockClass {
GstClockClass parent_class;
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
GST_API
GType gst_system_clock_get_type (void);
GST_API
GstClock* gst_system_clock_obtain (void);
GST_API
void gst_system_clock_set_default (GstClock *new_clock);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstSystemClock, gst_object_unref)
G_END_DECLS
#endif /* __GST_SYSTEM_CLOCK_H__ */
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