gstreamer/ext/alsa/gstalsaclock.h

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/*
* Copyright (C) 2001 CodeFactory AB
* Copyright (C) 2001 Thomas Nyberg <thomas@codefactory.se>
* Copyright (C) 2001-2002 Andy Wingo <apwingo@eos.ncsu.edu>
* Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __GST_ALSA_CLOCK_H__
#define __GST_ALSA_CLOCK_H__
#include "gstalsa.h"
G_BEGIN_DECLS
#define GST_ALSA_CLOCK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ALSA_CLOCK,GstAlsaClock))
#define GST_ALSA_CLOCK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ALSA_CLOCK,GstAlsaClockClass))
#define GST_IS_ALSA_CLOCK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ALSA_CLOCK))
#define GST_IS_ALSA_CLOCK_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ALSA_CLOCK))
#define GST_TYPE_ALSA_CLOCK (gst_alsa_clock_get_type())
typedef GstClockTime (*GstAlsaClockGetTimeFunc) (GstAlsa *);
struct _GstAlsaClock
{
GstSystemClock parent;
GstAlsaClockGetTimeFunc get_time;
GstAlsa *owner;
GstClockTimeDiff adjust; /* adjustment to real clock (recalculated when stopping) */
GstClockTime start_time; /* time when the stream started (NONE when stopped) */
GstClockTime last_unlock; /* time of last unlock request */
};
struct _GstAlsaClockClass
{
GstSystemClockClass parent_class;
};
GType gst_alsa_clock_get_type (void);
GstAlsaClock *gst_alsa_clock_new (gchar * name,
GstAlsaClockGetTimeFunc func, GstAlsa * owner);
void gst_alsa_clock_start (GstAlsaClock * clock);
void gst_alsa_clock_stop (GstAlsaClock * clock);
G_END_DECLS
#endif /* __GST_ALSA_CLOCK_H__ */