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rtsp-server: Add RFC5576 Source-specific media attribute to the SDP media for signalling the CNAME

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2132>
This commit is contained in:
Sebastian Dröge 2022-04-07 19:14:27 +03:00 committed by GStreamer Marge Bot
parent 150db81287
commit a91b1c64a1
1 changed files with 29 additions and 0 deletions
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29
subprojects/gst-rtsp-server/gst/rtsp-server/rtsp-sdp.c
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@ -465,6 +465,35 @@ gst_rtsp_sdp_make_media (GstSDPMessage * sdp, GstSDPInfo * info,
}
}
/* RFC5576 Source-specific media attributes */
{
GObject *session;
guint ssrc;
GstStructure *sdes;
const gchar *cname;
gchar *ssrc_cname;
session = gst_rtsp_stream_get_rtpsession (stream);
if (session) {
g_object_get (session, "sdes", &sdes, NULL);
cname = gst_structure_get_string (sdes, "cname");
gst_rtsp_stream_get_ssrc (stream, &ssrc);
if (cname) {
ssrc_cname = g_strdup_printf ("%u cname:%s", ssrc, cname);
gst_sdp_media_add_attribute (smedia, "ssrc", ssrc_cname);
g_free (ssrc_cname);
} else {
GST_ERROR ("unable to get CNAME for stream %p", stream);
}
gst_structure_free (sdes);
g_object_unref (session);
} else {
GST_ERROR ("unable to get RTP session from stream %p", stream);
}
}
gst_sdp_message_add_media (sdp, smedia);
gst_sdp_media_free (smedia);