mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-10-05 18:22:23 +00:00
5a9e9895ab
The average_period should always represent the time between two events. The specification defines the event time as the time between audio samples, video frame sync, video line sync, etc. In case of one timestamp per PDU the timestamp_interval identifies the amount of events between the timestamp of one PDU and the timestamp of the next PDU. As described in IEEE 1722-2016 chapter "10.4.12 timestamp_interval field" timestamp_interval shall be nonzero. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1076>
87 lines
2.5 KiB
C
87 lines
2.5 KiB
C
/*
|
|
* GStreamer AVTP Plugin
|
|
* Copyright (C) 2019 Intel Corporation
|
|
*
|
|
* 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_AVTP_CRF_BASE_H__
|
|
#define __GST_AVTP_CRF_BASE_H__
|
|
|
|
#include <gst/base/gstbasetransform.h>
|
|
#include <gst/gst.h>
|
|
#include <linux/if_packet.h>
|
|
|
|
G_BEGIN_DECLS
|
|
#define GST_TYPE_AVTP_CRF_BASE (gst_avtp_crf_base_get_type())
|
|
#define GST_AVTP_CRF_BASE(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AVTP_CRF_BASE,GstAvtpCrfBase))
|
|
#define GST_AVTP_CRF_BASE_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AVTP_CRF_BASE,GstAvtpCrfBaseClass))
|
|
#define GST_IS_AVTP_CRF_BASE(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AVTP_CRF_BASE))
|
|
#define GST_IS_AVTP_CRF_BASE_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AVTP_CRF_BASE))
|
|
typedef struct _GstAvtpCrfBase GstAvtpCrfBase;
|
|
typedef struct _GstAvtpCrfBaseClass GstAvtpCrfBaseClass;
|
|
typedef struct _GstAvtpCrfThreadData GstAvtpCrfThreadData;
|
|
|
|
struct _GstAvtpCrfThreadData
|
|
{
|
|
GThread *thread;
|
|
gboolean is_running;
|
|
|
|
guint64 num_pkt_tstamps;
|
|
GstClockTime timestamp_interval;
|
|
guint64 base_freq;
|
|
guint64 pull;
|
|
guint64 type;
|
|
guint64 mr;
|
|
|
|
GstClockTime *past_periods;
|
|
int past_periods_iter;
|
|
int periods_stored;
|
|
/** The time in ns between two events. The type of the event is depending on
|
|
* the CRF type: Audio sample, video frame sync, video line sync, ...
|
|
*/
|
|
GstClockTime average_period;
|
|
GstClockTime current_ts;
|
|
GstClockTime last_received_tstamp;
|
|
guint64 last_seqnum;
|
|
};
|
|
|
|
struct _GstAvtpCrfBase
|
|
{
|
|
GstBaseTransform element;
|
|
|
|
guint64 streamid;
|
|
gchar *ifname;
|
|
gchar *address;
|
|
|
|
GstAvtpCrfThreadData thread_data;
|
|
};
|
|
|
|
struct _GstAvtpCrfBaseClass
|
|
{
|
|
GstBaseTransformClass parent_class;
|
|
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
GType gst_avtp_crf_base_get_type (void);
|
|
|
|
G_END_DECLS
|
|
#endif /* __GST_AVTP_CRF_BASE_H__ */
|