mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-25 11:11:08 +00:00
81d55fb479
The clocksync element is a generic element that can be placed in a pipeline to synchronise passing buffers to the clock at that point. This is similar to 'identity sync=true', but because it isn't GstBaseTransform-based, it can process GstBufferLists without breaking them into separate GstBuffers
81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
/* GStreamer
|
|
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
|
|
* 2000 Wim Taymans <wtay@chello.be>
|
|
* 2005 Wim Taymans <wim@fluendo.com>
|
|
* Copyright (C) 2020 Jan Schmidt <jan@centricular.com>
|
|
*
|
|
* gstclocksync.h:
|
|
*
|
|
* 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_CLOCKSYNC_H__
|
|
#define __GST_CLOCKSYNC_H__
|
|
|
|
#include <gst/gst.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/* #defines don't like whitespacey bits */
|
|
#define GST_TYPE_CLOCKSYNC \
|
|
(gst_clock_sync_get_type())
|
|
#define GST_CLOCKSYNC(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CLOCKSYNC,GstClockSync))
|
|
#define GST_CLOCKSYNC_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CLOCKSYNC,GstClockSyncClass))
|
|
#define GST_IS_CLOCKSYNC(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CLOCKSYNC))
|
|
#define GST_IS_CLOCKSYNC_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CLOCKSYNC))
|
|
|
|
typedef struct _GstClockSync GstClockSync;
|
|
typedef struct _GstClockSyncClass GstClockSyncClass;
|
|
|
|
struct _GstClockSync
|
|
{
|
|
GstElement element;
|
|
|
|
/*< private >*/
|
|
GstPad *sinkpad, *srcpad;
|
|
|
|
gboolean signal_handoffs;
|
|
|
|
GstSegment segment;
|
|
GstClockID clock_id;
|
|
gboolean flushing;
|
|
gboolean sync;
|
|
|
|
GCond blocked_cond;
|
|
gboolean blocked;
|
|
GstClockTimeDiff ts_offset;
|
|
|
|
GstClockTime upstream_latency;
|
|
};
|
|
|
|
struct _GstClockSyncClass
|
|
{
|
|
GstElementClass parent_class;
|
|
|
|
/* signals */
|
|
void (*handoff) (GstElement *element, GstBuffer *buf);
|
|
void (*handoff_list) (GstElement *element, GstBufferList *buffer_list);
|
|
};
|
|
|
|
GType gst_clock_sync_get_type (void);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_CLOCKSYNC_H__ */
|