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rtspsrc: 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 13:49:09 +00:00 committed by GStreamer Marge Bot
parent c29d741c0e
commit 7895bf38ad
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

@ -20010,6 +20010,18 @@
}
},
"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
},
"backchannel": {
"blurb": "The type of backchannel to setup. Default is 'none'.",
"conditionally-available": false,

31
subprojects/gst-plugins-good/gst/rtsp/gstrtspsrc.c
View file

@ -301,6 +301,7 @@ gst_rtsp_backchannel_get_type (void)
#define DEFAULT_USER_AGENT "GStreamer/" PACKAGE_VERSION
#define DEFAULT_MAX_RTCP_RTP_TIME_DIFF 1000
#define DEFAULT_RFC7273_SYNC FALSE
#define DEFAULT_ADD_REFERENCE_TIMESTAMP_META FALSE
#define DEFAULT_MAX_TS_OFFSET_ADJUSTMENT G_GUINT64_CONSTANT(0)
#define DEFAULT_MAX_TS_OFFSET G_GINT64_CONSTANT(3000000000)
#define DEFAULT_VERSION GST_RTSP_VERSION_1_0
@ -350,6 +351,7 @@ enum
PROP_USER_AGENT,
PROP_MAX_RTCP_RTP_TIME_DIFF,
PROP_RFC7273_SYNC,
PROP_ADD_REFERENCE_TIMESTAMP_META,
PROP_MAX_TS_OFFSET_ADJUSTMENT,
PROP_MAX_TS_OFFSET,
PROP_DEFAULT_VERSION,
@ -899,6 +901,23 @@ gst_rtspsrc_class_init (GstRTSPSrcClass * klass)
"(requires clock and offset to be provided)", DEFAULT_RFC7273_SYNC,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstRTSPSrc: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));
/**
* GstRTSPSrc:default-rtsp-version:
*
@ -1457,6 +1476,7 @@ gst_rtspsrc_init (GstRTSPSrc * src)
src->user_agent = g_strdup (DEFAULT_USER_AGENT);
src->max_rtcp_rtp_time_diff = DEFAULT_MAX_RTCP_RTP_TIME_DIFF;
src->rfc7273_sync = DEFAULT_RFC7273_SYNC;
src->add_reference_timestamp_meta = DEFAULT_ADD_REFERENCE_TIMESTAMP_META;
src->max_ts_offset_adjustment = DEFAULT_MAX_TS_OFFSET_ADJUSTMENT;
src->max_ts_offset = DEFAULT_MAX_TS_OFFSET;
src->max_ts_offset_is_set = FALSE;
@ -1779,6 +1799,9 @@ gst_rtspsrc_set_property (GObject * object, guint prop_id, const GValue * value,
case PROP_RFC7273_SYNC:
rtspsrc->rfc7273_sync = g_value_get_boolean (value);
break;
case PROP_ADD_REFERENCE_TIMESTAMP_META:
rtspsrc->add_reference_timestamp_meta = g_value_get_boolean (value);
break;
case PROP_MAX_TS_OFFSET_ADJUSTMENT:
rtspsrc->max_ts_offset_adjustment = g_value_get_uint64 (value);
break;
@ -1950,6 +1973,9 @@ gst_rtspsrc_get_property (GObject * object, guint prop_id, GValue * value,
case PROP_RFC7273_SYNC:
g_value_set_boolean (value, rtspsrc->rfc7273_sync);
break;
case PROP_ADD_REFERENCE_TIMESTAMP_META:
g_value_set_boolean (value, rtspsrc->add_reference_timestamp_meta);
break;
case PROP_MAX_TS_OFFSET_ADJUSTMENT:
g_value_set_uint64 (value, rtspsrc->max_ts_offset_adjustment);
break;
@ -4032,6 +4058,11 @@ gst_rtspsrc_stream_configure_manager (GstRTSPSrc * src, GstRTSPStream * stream,
g_object_set (src->manager, "rfc7273-sync", src->rfc7273_sync, NULL);
}
if (g_object_class_find_property (klass, "add-reference-timestamp-meta")) {
g_object_set (src->manager, "add-reference-timestamp-meta",
src->add_reference_timestamp_meta, NULL);
}
if (src->use_pipeline_clock) {
if (g_object_class_find_property (klass, "use-pipeline-clock")) {
g_object_set (src->manager, "use-pipeline-clock", TRUE, NULL);

1
subprojects/gst-plugins-good/gst/rtsp/gstrtspsrc.h
View file

@ -270,6 +270,7 @@ struct _GstRTSPSrc {
gchar *user_agent;
gint max_rtcp_rtp_time_diff;
gboolean rfc7273_sync;
gboolean add_reference_timestamp_meta;
guint64 max_ts_offset_adjustment;
gint64 max_ts_offset;
gboolean max_ts_offset_is_set;