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rtpbasepayload: Add statistics property

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This property allows for an atomically retrieved set of properties that
can e.g. be used to generate RTP-Info headers.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=719415
This commit is contained in:
Sebastian Rasmussen 2014-01-16 21:49:59 +01:00 committed by Wim Taymans
parent 43237ad0e2
commit fa393e5d60
2 changed files with 74 additions and 0 deletions
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50
gst-libs/gst/rtp/gstrtpbasepayload.c
View file

@ -93,6 +93,7 @@ enum
PROP_SEQNUM,
PROP_PERFECT_RTPTIME,
PROP_PTIME_MULTIPLE,
PROP_STATS,
PROP_LAST
};
@ -243,6 +244,37 @@ gst_rtp_base_payload_class_init (GstRTPBasePayloadClass * klass)
0, G_MAXINT64, DEFAULT_PTIME_MULTIPLE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstRTPBasePayload:stats:
*
* Various payloader statistics retrieved atomically (and are therefore
* synchroized with each other), these can be used e.g. to generate an
* RTP-Info header. This property return a GstStructure named
* application/x-rtp-payload-stats containing the following fields relating to
* the last processed buffer and current state of the stream being payloaded:
*
* <variablelist>
* <varlistentry>
* <term>clock-rate</term>
* <listitem><para>#G_TYPE_UINT, clock-rate of the
* stream</para></listitem>
* </varlistentry>
* <varlistentry>
* <term>seqnum</term>
* <listitem><para>#G_TYPE_UINT, sequence number, same as
* #GstRTPBasePayload:seqnum</para></listitem>
* </varlistentry>
* <varlistentry>
* <term>timestamp</term>
* <listitem><para>#G_TYPE_UINT, RTP timestamp, same as
* #GstRTPBasePayload:timestamp</para></listitem>
* </varlistentry>
* </variablelist>
**/
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_STATS,
g_param_spec_boxed ("stats", "Statistics", "Various statistics",
GST_TYPE_STRUCTURE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
gstelement_class->change_state = gst_rtp_base_payload_change_state;
klass->get_caps = gst_rtp_base_payload_getcaps_default;
@ -1051,6 +1083,20 @@ gst_rtp_base_payload_push (GstRTPBasePayload * payload, GstBuffer * buffer)
return res;
}
static GstStructure *
gst_rtp_base_payload_create_stats (GstRTPBasePayload *rtpbasepayload)
{
GstStructure *s;
s = gst_structure_new ("application/x-rtp-payload-stats",
"clock-rate", G_TYPE_UINT, rtpbasepayload->clock_rate,
"seqnum", G_TYPE_UINT, rtpbasepayload->seqnum,
"timestamp", G_TYPE_UINT, rtpbasepayload->timestamp,
NULL);
return s;
}
static void
gst_rtp_base_payload_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
@ -1158,6 +1204,10 @@ gst_rtp_base_payload_get_property (GObject * object, guint prop_id,
case PROP_PTIME_MULTIPLE:
g_value_set_int64 (value, rtpbasepayload->ptime_multiple);
break;
case PROP_STATS:
g_value_take_boxed (value,
gst_rtp_base_payload_create_stats (rtpbasepayload));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;

24
tests/check/libs/rtp-basepayloading.c
View file

@ -310,6 +310,11 @@ GST_START_TEST (rtp_base_test)
GMainLoop *mainloop;
GstBus *bus;
GstCaps *caps;
GstStructure *stats;
guint clock_rate;
guint seqnum;
guint timestamp;
GObjectClass *klass;
pipeline = gst_pipeline_new (NULL);
fail_unless (GST_IS_PIPELINE (pipeline));
@ -330,6 +335,8 @@ GST_START_TEST (rtp_base_test)
GST_FORMAT_TIME, NULL);
gst_caps_unref (caps);
g_object_set (pay, "seqnum-offset", 0, "timestamp-offset", 0, NULL);
g_object_set (sink, "sync", FALSE, "emit-signals", TRUE, NULL);
gst_bin_add_many (GST_BIN (pipeline), src, pay, depay, sink, NULL);
@ -357,6 +364,23 @@ GST_START_TEST (rtp_base_test)
push_buffer (src, 1 * GST_SECOND);
await_buffer (sink, 1 * GST_SECOND);
klass = G_OBJECT_GET_CLASS (pay);
fail_unless (g_object_class_find_property (klass, "stats") != NULL);
g_object_get (pay, "stats", &stats, NULL);
fail_unless (gst_structure_has_field (stats, "clock-rate"));
fail_unless (gst_structure_has_field (stats, "seqnum"));
fail_unless (gst_structure_has_field (stats, "timestamp"));
fail_unless (gst_structure_get_uint (stats, "clock-rate", &clock_rate));
fail_unless (gst_structure_get_uint (stats, "seqnum", &seqnum));
fail_unless (gst_structure_get_uint (stats, "timestamp", &timestamp));
fail_unless_equals_int (clock_rate, 42);
fail_unless_equals_int (seqnum, 1);
fail_unless_equals_int (timestamp, 42);
push_eos (src);
await_eos (sink);