gstreamer/gst/gstclock.h

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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstclock.h: Header for clock subsystem
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_CLOCK_H__
#define __GST_CLOCK_H__
#include <gst/gstobject.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef guint64 GstClockTime;
typedef gint64 GstClockTimeDiff;
#define GST_CLOCK_DIFF(s, e) (GstClockTimeDiff)((s)-(e))
typedef struct _GstClock GstClock;
struct _GstClock {
gchar *name;
GstClockTime start_time;
GstClockTime current_time;
GstClockTimeDiff adjust;
gboolean locking;
GList *sinkobjects;
gint num, num_locked;
GMutex *sinkmutex;
GMutex *lock;
};
GstClock* gst_clock_new (gchar *name);
GstClock* gst_clock_get_system (void);
void gst_clock_register (GstClock *clock, GstObject *obj);
void gst_clock_set (GstClock *clock, GstClockTime time);
void gst_clock_reset (GstClock *clock);
void gst_clock_wait (GstClock *clock, GstClockTime time, GstObject *obj);
GstClockTimeDiff gst_clock_current_diff (GstClock *clock, GstClockTime time);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_CLOCK_H__ */