35e2ecd48b
When ClockSync synchronizes the data stream on the clock, it should also push `QoS` events if the user wants to do it as, as stated in [the QoS design doc] "Elements that synchronize buffers on the pipeline clock will usually measure the current QoS". The logic has been replicated from `GstBaseSink`. [the QoS design doc]: https://gstreamer.freedesktop.org/documentation/plugin-development/advanced/qos.html Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2225>
95 lines
2.6 KiB
C
95 lines
2.6 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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* 2005 Wim Taymans <wim@fluendo.com>
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* Copyright (C) 2020 Jan Schmidt <jan@centricular.com>
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*
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* gstclocksync.h:
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_CLOCKSYNC_H__
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#define __GST_CLOCKSYNC_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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/* #defines don't like whitespacey bits */
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#define GST_TYPE_CLOCKSYNC \
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(gst_clock_sync_get_type())
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#define GST_CLOCKSYNC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CLOCKSYNC,GstClockSync))
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#define GST_CLOCKSYNC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CLOCKSYNC,GstClockSyncClass))
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#define GST_IS_CLOCKSYNC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CLOCKSYNC))
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#define GST_IS_CLOCKSYNC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CLOCKSYNC))
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typedef struct _GstClockSync GstClockSync;
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typedef struct _GstClockSyncClass GstClockSyncClass;
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struct _GstClockSync
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{
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GstElement element;
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/*< private >*/
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GstPad *sinkpad, *srcpad;
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GstSegment segment;
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GstClockID clock_id;
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gboolean flushing;
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gboolean sync;
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GCond blocked_cond;
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gboolean blocked;
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GstClockTimeDiff ts_offset;
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gboolean sync_to_first;
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gboolean is_first;
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GstClockTime upstream_latency;
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/* QoS */
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gboolean qos_enabled;
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// With STREAM_LOCK {
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GstClockTime earliest_in_time;
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GstClockTime current_rstart;
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GstClockTimeDiff current_jitter;
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GstClockTime avg_pt, avg_in_diff;
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gdouble avg_rate; /* average with infinite window */
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/* when the last buffer left the sink, running time */
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GstClockTime last_left;
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/* the running time of the previous buffer */
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GstClockTime prev_rstart;
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// } With STREAM_LOCK
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};
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struct _GstClockSyncClass
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{
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GstElementClass parent_class;
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};
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GType gst_clock_sync_get_type (void);
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G_END_DECLS
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#endif /* __GST_CLOCKSYNC_H__ */
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