mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-08 13:18:52 +00:00
Original commit message from CVS: Make ringbuffer faster and more simple by removing the locks in the playback thread. Add sample accurate playback based on buffer sample offsets. Make the baseaudiosink provide a clock. Parse caps in the base class. Correctly handle seeking, flushing and state changes.
105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
/* GStreamer
|
|
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
|
|
* 2000 Wim Taymans <wtay@chello.be>
|
|
*
|
|
* audioclock.c: Clock for use by audio plugins
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "gstaudioclock.h"
|
|
|
|
static void gst_audio_clock_class_init (GstAudioClockClass * klass);
|
|
static void gst_audio_clock_init (GstAudioClock * clock);
|
|
|
|
static GstClockTime gst_audio_clock_get_internal_time (GstClock * clock);
|
|
|
|
static GstSystemClockClass *parent_class = NULL;
|
|
|
|
/* static guint gst_audio_clock_signals[LAST_SIGNAL] = { 0 }; */
|
|
|
|
GType
|
|
gst_audio_clock_get_type (void)
|
|
{
|
|
static GType clock_type = 0;
|
|
|
|
if (!clock_type) {
|
|
static const GTypeInfo clock_info = {
|
|
sizeof (GstAudioClockClass),
|
|
NULL,
|
|
NULL,
|
|
(GClassInitFunc) gst_audio_clock_class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof (GstAudioClock),
|
|
4,
|
|
(GInstanceInitFunc) gst_audio_clock_init,
|
|
NULL
|
|
};
|
|
|
|
clock_type = g_type_register_static (GST_TYPE_SYSTEM_CLOCK, "GstAudioClock",
|
|
&clock_info, 0);
|
|
}
|
|
return clock_type;
|
|
}
|
|
|
|
|
|
static void
|
|
gst_audio_clock_class_init (GstAudioClockClass * klass)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstObjectClass *gstobject_class;
|
|
GstClockClass *gstclock_class;
|
|
|
|
gobject_class = (GObjectClass *) klass;
|
|
gstobject_class = (GstObjectClass *) klass;
|
|
gstclock_class = (GstClockClass *) klass;
|
|
|
|
parent_class = g_type_class_ref (GST_TYPE_SYSTEM_CLOCK);
|
|
|
|
gstclock_class->get_internal_time = gst_audio_clock_get_internal_time;
|
|
}
|
|
|
|
static void
|
|
gst_audio_clock_init (GstAudioClock * clock)
|
|
{
|
|
gst_object_set_name (GST_OBJECT (clock), "GstAudioClock");
|
|
}
|
|
|
|
GstClock *
|
|
gst_audio_clock_new (gchar * name, GstAudioClockGetTimeFunc func,
|
|
gpointer user_data)
|
|
{
|
|
GstAudioClock *aclock =
|
|
GST_AUDIO_CLOCK (g_object_new (GST_TYPE_AUDIO_CLOCK, NULL));
|
|
|
|
aclock->func = func;
|
|
aclock->user_data = user_data;
|
|
|
|
return (GstClock *) aclock;
|
|
}
|
|
|
|
static GstClockTime
|
|
gst_audio_clock_get_internal_time (GstClock * clock)
|
|
{
|
|
GstAudioClock *aclock = GST_AUDIO_CLOCK (clock);
|
|
|
|
return aclock->func (clock, aclock->user_data);
|
|
}
|