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rtpbin: proxy new "add-reference-timestamp-meta" property from rtpjitterbuffer

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When syncing to an RFC7273 clock this will add the original
reconstructed reference clock timestamp to buffers in form
of a GstReferenceTimestampMeta.

This is useful when we want to process or analyse data based
on the original timestamps untainted by any local adjustments,
for example reconstruct AES67 audio streams with sample accuracy.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1964>
This commit is contained in:
Tim-Philipp Müller 2022-03-15 11:56:28 +00:00 committed by GStreamer Marge Bot
parent c88bfc0b3e
commit c29d741c0e
3 changed files with 44 additions and 0 deletions
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12
subprojects/gst-plugins-good/docs/gst_plugins_cache.json
View file

@ -16601,6 +16601,18 @@
}
},
"properties": {
"add-reference-timestamp-meta": {
"blurb": "Add Reference Timestamp Meta to buffers with the original clock timestamp before any adjustments when syncing to an RFC7273 clock.",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "false",
"mutable": "null",
"readable": true,
"type": "gboolean",
"writable": true
},
"autoremove": {
"blurb": "Automatically remove timed out sources",
"conditionally-available": false,

31
subprojects/gst-plugins-good/gst/rtpmanager/gstrtpbin.c
View file

@ -350,6 +350,7 @@ enum
#define DEFAULT_MAX_DROPOUT_TIME 60000
#define DEFAULT_MAX_MISORDER_TIME 2000
#define DEFAULT_RFC7273_SYNC FALSE
#define DEFAULT_ADD_REFERENCE_TIMESTAMP_META FALSE
#define DEFAULT_MAX_STREAMS G_MAXUINT
#define DEFAULT_MAX_TS_OFFSET_ADJUSTMENT G_GUINT64_CONSTANT(0)
#define DEFAULT_MAX_TS_OFFSET G_GINT64_CONSTANT(3000000000)
@ -379,6 +380,7 @@ enum
PROP_MAX_DROPOUT_TIME,
PROP_MAX_MISORDER_TIME,
PROP_RFC7273_SYNC,
PROP_ADD_REFERENCE_TIMESTAMP_META,
PROP_MAX_STREAMS,
PROP_MAX_TS_OFFSET_ADJUSTMENT,
PROP_MAX_TS_OFFSET,
@ -1905,6 +1907,9 @@ create_stream (GstRtpBinSession * session, guint32 ssrc)
g_object_set (buffer, "max-misorder-time", rtpbin->max_misorder_time, NULL);
if (g_object_class_find_property (jb_class, "rfc7273-sync"))
g_object_set (buffer, "rfc7273-sync", rtpbin->rfc7273_sync, NULL);
if (g_object_class_find_property (jb_class, "add-reference-timestamp-meta"))
g_object_set (buffer, "add-reference-timestamp-meta",
rtpbin->add_reference_timestamp_meta, NULL);
if (g_object_class_find_property (jb_class, "max-ts-offset-adjustment"))
g_object_set (buffer, "max-ts-offset-adjustment",
rtpbin->max_ts_offset_adjustment, NULL);
@ -2763,6 +2768,23 @@ gst_rtp_bin_class_init (GstRtpBinClass * klass)
"(requires clock and offset to be provided)", DEFAULT_RFC7273_SYNC,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstRtpBin:add-reference-timestamp-meta:
*
* When syncing to a RFC7273 clock, add #GstReferenceTimestampMeta
* to buffers with the original reconstructed reference clock timestamp.
*
* Since: 1.22
*/
g_object_class_install_property (gobject_class,
PROP_ADD_REFERENCE_TIMESTAMP_META,
g_param_spec_boolean ("add-reference-timestamp-meta",
"Add Reference Timestamp Meta",
"Add Reference Timestamp Meta to buffers with the original clock timestamp "
"before any adjustments when syncing to an RFC7273 clock.",
DEFAULT_ADD_REFERENCE_TIMESTAMP_META,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_MAX_STREAMS,
g_param_spec_uint ("max-streams", "Max Streams",
"The maximum number of streams to create for one session",
@ -2967,6 +2989,7 @@ gst_rtp_bin_init (GstRtpBin * rtpbin)
rtpbin->max_dropout_time = DEFAULT_MAX_DROPOUT_TIME;
rtpbin->max_misorder_time = DEFAULT_MAX_MISORDER_TIME;
rtpbin->rfc7273_sync = DEFAULT_RFC7273_SYNC;
rtpbin->add_reference_timestamp_meta = DEFAULT_ADD_REFERENCE_TIMESTAMP_META;
rtpbin->max_streams = DEFAULT_MAX_STREAMS;
rtpbin->max_ts_offset_adjustment = DEFAULT_MAX_TS_OFFSET_ADJUSTMENT;
rtpbin->max_ts_offset = DEFAULT_MAX_TS_OFFSET;
@ -3283,6 +3306,11 @@ gst_rtp_bin_set_property (GObject * object, guint prop_id,
gst_rtp_bin_propagate_property_to_jitterbuffer (rtpbin,
"rfc7273-sync", value);
break;
case PROP_ADD_REFERENCE_TIMESTAMP_META:
rtpbin->add_reference_timestamp_meta = g_value_get_boolean (value);
gst_rtp_bin_propagate_property_to_jitterbuffer (rtpbin,
"add-reference-timestamp-meta", value);
break;
case PROP_MAX_STREAMS:
rtpbin->max_streams = g_value_get_uint (value);
break;
@ -3393,6 +3421,9 @@ gst_rtp_bin_get_property (GObject * object, guint prop_id,
case PROP_RFC7273_SYNC:
g_value_set_boolean (value, rtpbin->rfc7273_sync);
break;
case PROP_ADD_REFERENCE_TIMESTAMP_META:
g_value_set_boolean (value, rtpbin->add_reference_timestamp_meta);
break;
case PROP_MAX_STREAMS:
g_value_set_uint (value, rtpbin->max_streams);
break;

1
subprojects/gst-plugins-good/gst/rtpmanager/gstrtpbin.h
View file

@ -74,6 +74,7 @@ struct _GstRtpBin {
guint32 max_dropout_time;
guint32 max_misorder_time;
gboolean rfc7273_sync;
gboolean add_reference_timestamp_meta;
guint max_streams;
guint64 max_ts_offset_adjustment;
gint64 max_ts_offset;