mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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rtpmanager: Add header extension implementation for the 64-bit RFC6051 NTP header extension
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2132>
This commit is contained in:
Sebastian Dröge
GStreamer Marge Bot
parent
06f90deb5f
commit
8980c35efe
5 changed files with 352 additions and 0 deletions
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@ -17948,6 +17948,50 @@
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},
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},
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"rank": "marginal"
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"rank": "marginal"
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},
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},
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"rtphdrextntp64": {
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"RTP-Header-Extension-URI": "urn:ietf:params:rtp-hdrext:ntp-64",
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"author": "Sebastian Dröge <sebastian@centricular.com>",
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"description": "Extends RTP packets to add or retrieve a 64-bit NTP timestamp as specified in RFC6501",
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"hierarchy": [
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"GstRTPHeaderExtensionNtp64",
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"GstRTPHeaderExtension",
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"GstElement",
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"GstObject",
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"GInitiallyUnowned",
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"GObject"
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],
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"klass": "Network/Extension/RTPHeader",
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"long-name": "RTP Header Extension RFC6051 64-bit NTP timestamp",
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"properties": {
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"every-packet": {
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"blurb": "Add the header extension to every packet",
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"conditionally-available": false,
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"construct": false,
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"construct-only": false,
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"controllable": false,
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"default": "false",
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"mutable": "null",
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"readable": true,
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"type": "gboolean",
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"writable": true
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},
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"interval": {
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"blurb": "Interval between consecutive packets that get the header extension added",
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"conditionally-available": false,
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"construct": false,
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"construct-only": false,
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"controllable": false,
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"default": "0",
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"max": "18446744073709551615",
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"min": "0",
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"mutable": "null",
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"readable": true,
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"type": "guint64",
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"writable": true
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}
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},
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"rank": "marginal"
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},
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"rtphdrextrepairedstreamid": {
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"rtphdrextrepairedstreamid": {
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"RTP-Header-Extension-URI": "urn:ietf:params:rtp-hdrext:sdes:repaired-rtp-stream-id",
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"RTP-Header-Extension-URI": "urn:ietf:params:rtp-hdrext:sdes:repaired-rtp-stream-id",
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"author": "Matthew Waters <matthew@centricular.com>",
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"author": "Matthew Waters <matthew@centricular.com>",
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269
subprojects/gst-plugins-good/gst/rtpmanager/gstrtphdrext-ntp.c
Normal file
269
subprojects/gst-plugins-good/gst/rtpmanager/gstrtphdrext-ntp.c
Normal file
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@ -0,0 +1,269 @@
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/* GStreamer
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* Copyright (C) <2022> Sebastian Dröge <sebastian@centricular.com>
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:element-rtphdrextntp64
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* @title: rtphdrextntp64
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* @short_description: RTP Header Extension for RFC6051 64-bit NTP timestamps for rapid synchronization.
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* @see_also: #GstRTPHeaderExtension, #GstRTPBasePayload, #GstRTPBaseDepayload, gstrtpbuffer
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*
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* Since: 1.22
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/rtp/gstrtpbuffer.h>
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#include "gstrtphdrext-ntp.h"
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GST_DEBUG_CATEGORY_STATIC (rtphdrext_ntp_debug);
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#define GST_CAT_DEFAULT (rtphdrext_ntp_debug)
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enum
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{
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PROP_0,
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PROP_INTERVAL,
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PROP_EVERY_PACKET,
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};
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#define DEFAULT_INTERVAL 0
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#define DEFAULT_EVERY_PACKET FALSE
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static GstStaticCaps ntp_reference_timestamp_caps =
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GST_STATIC_CAPS ("timestamp/x-ntp");
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struct _GstRTPHeaderExtensionNtp64
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{
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GstRTPHeaderExtension parent;
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GstClockTime last_pts;
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GstClockTime interval;
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gboolean every_packet;
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};
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G_DEFINE_TYPE_WITH_CODE (GstRTPHeaderExtensionNtp64,
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gst_rtp_header_extension_ntp_64,
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GST_TYPE_RTP_HEADER_EXTENSION, GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT,
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"rtphdrextntp", 0, "RTP RFC6051 NTP Timestamps Header Extension");
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);
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GST_ELEMENT_REGISTER_DEFINE (rtphdrextntp64,
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"rtphdrextntp64", GST_RANK_MARGINAL, GST_TYPE_RTP_HEADER_EXTENSION_NTP_64);
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static GstRTPHeaderExtensionFlags
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gst_rtp_header_extension_ntp_get_supported_flags
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(GstRTPHeaderExtension * ext)
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{
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return GST_RTP_HEADER_EXTENSION_ONE_BYTE | GST_RTP_HEADER_EXTENSION_TWO_BYTE;
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}
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static gsize
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gst_rtp_header_extension_ntp_64_get_max_size
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(GstRTPHeaderExtension * ext, const GstBuffer * buffer)
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{
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return 8;
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}
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static gssize
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gst_rtp_header_extension_ntp_64_write (GstRTPHeaderExtension
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* ext, const GstBuffer * input_meta, GstRTPHeaderExtensionFlags write_flags,
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GstBuffer * output, guint8 * data, gsize size)
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{
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GstRTPHeaderExtensionNtp64 *self = GST_RTP_HEADER_EXTENSION_NTP_64 (ext);
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g_return_val_if_fail (size >=
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gst_rtp_header_extension_ntp_64_get_max_size (ext, NULL), -1);
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g_return_val_if_fail (write_flags &
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gst_rtp_header_extension_ntp_get_supported_flags (ext), -1);
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if (self->every_packet
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|| self->last_pts == GST_CLOCK_TIME_NONE
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|| !GST_BUFFER_PTS_IS_VALID (input_meta)
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|| (self->last_pts != GST_BUFFER_PTS (input_meta)
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&& (GST_BUFFER_IS_DISCONT (input_meta)
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|| (GST_BUFFER_PTS (input_meta) >= self->last_pts
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&& GST_BUFFER_PTS (input_meta) - self->last_pts >=
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self->interval)))) {
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GstCaps *caps;
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GstReferenceTimestampMeta *meta;
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caps = gst_static_caps_get (&ntp_reference_timestamp_caps);
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meta =
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gst_buffer_get_reference_timestamp_meta ((GstBuffer *) input_meta,
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caps);
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if (meta) {
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guint64 ntptime =
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gst_util_uint64_scale (meta->timestamp, G_GUINT64_CONSTANT (1) << 32,
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GST_SECOND);
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GST_WRITE_UINT64_BE (data, ntptime);
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} else {
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memset (data, 0, 8);
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}
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gst_caps_unref (caps);
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self->last_pts = GST_BUFFER_PTS (input_meta);
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return 8;
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} else {
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return 0;
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}
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}
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static gboolean
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gst_rtp_header_extension_ntp_64_read (GstRTPHeaderExtension
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* ext, GstRTPHeaderExtensionFlags read_flags, const guint8 * data,
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gsize size, GstBuffer * buffer)
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{
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GstCaps *caps;
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guint64 ntptime;
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GstClockTime timestamp;
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if (size < 8)
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return FALSE;
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caps = gst_static_caps_get (&ntp_reference_timestamp_caps);
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ntptime = GST_READ_UINT64_BE (data);
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timestamp =
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gst_util_uint64_scale (ntptime, GST_SECOND, G_GUINT64_CONSTANT (1) << 32);
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gst_buffer_add_reference_timestamp_meta (buffer, caps, timestamp,
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GST_CLOCK_TIME_NONE);
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gst_caps_unref (caps);
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return TRUE;
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}
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static void
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gst_rtp_header_extension_ntp_64_get_property (GObject *
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object, guint prop_id, GValue * value, GParamSpec * pspec)
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{
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GstRTPHeaderExtensionNtp64 *self = GST_RTP_HEADER_EXTENSION_NTP_64 (object);
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switch (prop_id) {
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case PROP_INTERVAL:
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GST_OBJECT_LOCK (self);
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g_value_set_uint64 (value, self->interval);
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GST_OBJECT_UNLOCK (self);
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break;
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case PROP_EVERY_PACKET:
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GST_OBJECT_LOCK (self);
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g_value_set_boolean (value, self->every_packet);
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GST_OBJECT_UNLOCK (self);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_rtp_header_extension_ntp_64_set_property (GObject *
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object, guint prop_id, const GValue * value, GParamSpec * pspec)
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{
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GstRTPHeaderExtensionNtp64 *self = GST_RTP_HEADER_EXTENSION_NTP_64 (object);
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switch (prop_id) {
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case PROP_INTERVAL:
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GST_OBJECT_LOCK (self);
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self->interval = g_value_get_uint64 (value);
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GST_OBJECT_UNLOCK (self);
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break;
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case PROP_EVERY_PACKET:
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GST_OBJECT_LOCK (self);
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self->every_packet = g_value_get_boolean (value);
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GST_OBJECT_UNLOCK (self);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_rtp_header_extension_ntp_64_class_init
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(GstRTPHeaderExtensionNtp64Class * klass)
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{
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GstRTPHeaderExtensionClass *rtp_hdr_class;
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GstElementClass *gstelement_class;
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GObjectClass *gobject_class;
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rtp_hdr_class = (GstRTPHeaderExtensionClass *) klass;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gobject_class->set_property = gst_rtp_header_extension_ntp_64_set_property;
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gobject_class->get_property = gst_rtp_header_extension_ntp_64_get_property;
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/**
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* rtphdrextntp64:interval:
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*
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* The minimum interval between packets that get the header extension added.
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*
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* On discontinuities the interval will be reset and the next packet gets
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* the header extension added.
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*
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* Since: 1.22
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*/
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g_object_class_install_property (gobject_class, PROP_INTERVAL,
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g_param_spec_uint64 ("interval", "Interval",
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"Interval between consecutive packets that get the header extension added",
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0, G_MAXUINT64, DEFAULT_INTERVAL,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* rtphdrextntp64:every-packet:
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*
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* If set to %TRUE the header extension will be added to every packet,
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* independent of its timestamp. By default only the first packet with a
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* given timestamp will get the header extension added.
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*
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* Since: 1.22
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*/
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g_object_class_install_property (gobject_class, PROP_EVERY_PACKET,
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g_param_spec_boolean ("every-packet", "Every Packet",
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"Add the header extension to every packet", DEFAULT_EVERY_PACKET,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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rtp_hdr_class->get_supported_flags =
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gst_rtp_header_extension_ntp_get_supported_flags;
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rtp_hdr_class->get_max_size = gst_rtp_header_extension_ntp_64_get_max_size;
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rtp_hdr_class->write = gst_rtp_header_extension_ntp_64_write;
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rtp_hdr_class->read = gst_rtp_header_extension_ntp_64_read;
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gst_element_class_set_static_metadata (gstelement_class,
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"RTP Header Extension RFC6051 64-bit NTP timestamp",
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GST_RTP_HDREXT_ELEMENT_CLASS,
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"Extends RTP packets to add or retrieve a 64-bit NTP "
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"timestamp as specified in RFC6501",
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"Sebastian Dröge <sebastian@centricular.com>");
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gst_rtp_header_extension_class_set_uri (rtp_hdr_class,
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GST_RTP_HDREXT_BASE GST_RTP_HDREXT_NTP_64);
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}
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static void
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gst_rtp_header_extension_ntp_64_init (GstRTPHeaderExtensionNtp64 * self)
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{
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self->last_pts = GST_CLOCK_TIME_NONE;
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self->interval = DEFAULT_INTERVAL;
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self->every_packet = DEFAULT_EVERY_PACKET;
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}
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@ -0,0 +1,36 @@
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/* GStreamer
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* Copyright (C) <2022> Sebastian Dröge <sebastian@centricular.com>
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*
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* 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,
|
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|
* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_RTPHDREXT_NTP_H__
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#define __GST_RTPHDREXT_NTP_H__
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#include <gst/gst.h>
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#include <gst/rtp/gstrtphdrext.h>
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G_BEGIN_DECLS
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#define GST_TYPE_RTP_HEADER_EXTENSION_NTP_64 (gst_rtp_header_extension_ntp_64_get_type())
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||||||
|
G_DECLARE_FINAL_TYPE (GstRTPHeaderExtensionNtp64, gst_rtp_header_extension_ntp_64, GST, RTP_HEADER_EXTENSION_NTP_64, GstRTPHeaderExtension);
|
||||||
|
|
||||||
|
GST_ELEMENT_REGISTER_DECLARE (rtphdrextntp64);
|
||||||
|
|
||||||
|
G_END_DECLS
|
||||||
|
|
||||||
|
#endif /* __GST_RTPHDREXT_NTP_H__ */
|
||||||
|
|
@ -37,6 +37,7 @@
|
||||||
#include "gstrtphdrext-twcc.h"
|
#include "gstrtphdrext-twcc.h"
|
||||||
#include "gstrtphdrext-clientaudiolevel.h"
|
#include "gstrtphdrext-clientaudiolevel.h"
|
||||||
#include "gstrtphdrext-mid.h"
|
#include "gstrtphdrext-mid.h"
|
||||||
|
#include "gstrtphdrext-ntp.h"
|
||||||
#include "gstrtphdrext-repairedstreamid.h"
|
#include "gstrtphdrext-repairedstreamid.h"
|
||||||
#include "gstrtphdrext-streamid.h"
|
#include "gstrtphdrext-streamid.h"
|
||||||
|
|
||||||
|
|
@ -61,6 +62,7 @@ plugin_init (GstPlugin * plugin)
|
||||||
ret |= GST_ELEMENT_REGISTER (rtphdrexttwcc, plugin);
|
ret |= GST_ELEMENT_REGISTER (rtphdrexttwcc, plugin);
|
||||||
ret |= GST_ELEMENT_REGISTER (rtphdrextclientaudiolevel, plugin);
|
ret |= GST_ELEMENT_REGISTER (rtphdrextclientaudiolevel, plugin);
|
||||||
ret |= GST_ELEMENT_REGISTER (rtphdrextmid, plugin);
|
ret |= GST_ELEMENT_REGISTER (rtphdrextmid, plugin);
|
||||||
|
ret |= GST_ELEMENT_REGISTER (rtphdrextntp64, plugin);
|
||||||
ret |= GST_ELEMENT_REGISTER (rtphdrextstreamid, plugin);
|
ret |= GST_ELEMENT_REGISTER (rtphdrextstreamid, plugin);
|
||||||
ret |= GST_ELEMENT_REGISTER (rtphdrextrepairedstreamid, plugin);
|
ret |= GST_ELEMENT_REGISTER (rtphdrextrepairedstreamid, plugin);
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -6,6 +6,7 @@ rtpmanager_sources = [
|
||||||
'gstrtphdrext-twcc.c',
|
'gstrtphdrext-twcc.c',
|
||||||
'gstrtphdrext-clientaudiolevel.c',
|
'gstrtphdrext-clientaudiolevel.c',
|
||||||
'gstrtphdrext-mid.c',
|
'gstrtphdrext-mid.c',
|
||||||
|
'gstrtphdrext-ntp.c',
|
||||||
'gstrtphdrext-repairedstreamid.c',
|
'gstrtphdrext-repairedstreamid.c',
|
||||||
'gstrtphdrext-streamid.c',
|
'gstrtphdrext-streamid.c',
|
||||||
'gstrtpmux.c',
|
'gstrtpmux.c',
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue