mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-27 20:21:24 +00:00
98249a57db
volatile is not sufficient to provide atomic guarantees and real atomics should be used instead. GCC 11 has started warning about using volatile with atomic operations. https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1719 Discovered in https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/issues/868 Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/1073>
81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
/* GStreamer
|
|
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
|
*
|
|
* 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_VIDEO_RATE_H__
|
|
#define __GST_VIDEO_RATE_H__
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/base/gstbasetransform.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_VIDEO_RATE (gst_video_rate_get_type())
|
|
G_DECLARE_FINAL_TYPE (GstVideoRate, gst_video_rate, GST, VIDEO_RATE,
|
|
GstBaseTransform)
|
|
|
|
/**
|
|
* GstVideoRate:
|
|
*
|
|
* Opaque data structure.
|
|
*/
|
|
struct _GstVideoRate
|
|
{
|
|
GstBaseTransform parent;
|
|
|
|
/* video state */
|
|
gint from_rate_numerator, from_rate_denominator;
|
|
gint to_rate_numerator, to_rate_denominator;
|
|
guint64 next_ts; /* Timestamp of next buffer to output */
|
|
GstBuffer *prevbuf;
|
|
guint64 prev_ts; /* Previous buffer timestamp */
|
|
guint64 out_frame_count; /* number of frames output since the beginning
|
|
* of the segment or the last frame rate caps
|
|
* change, whichever was later */
|
|
guint64 base_ts; /* used in next_ts calculation after a
|
|
* frame rate caps change */
|
|
gboolean discont;
|
|
guint64 last_ts; /* Timestamp of last input buffer */
|
|
|
|
guint64 average_period;
|
|
GstClockTimeDiff wanted_diff; /* target average diff */
|
|
GstClockTimeDiff average; /* moving average period */
|
|
gboolean force_variable_rate;
|
|
gboolean updating_caps;
|
|
guint64 max_duplication_time;
|
|
|
|
/* segment handling */
|
|
GstSegment segment;
|
|
|
|
/* properties */
|
|
guint64 in, out, dup, drop;
|
|
gboolean silent;
|
|
gdouble new_pref;
|
|
gboolean skip_to_first;
|
|
gboolean drop_only;
|
|
guint64 average_period_set;
|
|
|
|
int max_rate;
|
|
gdouble rate;
|
|
gdouble pending_rate;
|
|
};
|
|
|
|
GST_ELEMENT_REGISTER_DECLARE (videorate);
|
|
|
|
G_END_DECLS
|
|
#endif /* __GST_VIDEO_RATE_H__ */
|