The 0xABAC extension is mentioned here: Edge Storage Retrieval and RTSP/RTP timestamps - Third-party integrations | Milestone Documentation 2020 R2 (milestonesys.com)
I expected to see this information in the RTP playback stream once I set the proper headers in the RTSP SETUP and PLAY commands, but the resulting RTP stream does not include the header extension. Am I missing something?
Here is the RTSP sequence I am using:
SETUP rtsp://… RTSP/1.0
CSeq: 4
User-Agent: GStreamer/1.16.2
Transport: RTP/AVP;unicast;client_port=39226-39227
Require: onvif-replay
Authorization: Digest username=“testuser”, realm=“RtspServerLibrary”, nonce=“…”, uri=“rtsp://…/streamid=0”, response=“9b192a37ef3fe03f378b7a61bf599689”
Date: Thu, 26 Aug 2021 12:13:01 GMT
RTSP/1.0 200 OK
CSeq: 4
Date: Thu, Aug 26 2021 12:12:59 GMT
Session: CEAB7A2A
Transport: RTP/AVP;unicast;client_port=39226-39227;server_port=4000-4001
Media-Properties: Random-Access=2.5, Unlimited, Immutable, Scales=“-16:16”
PLAY rtsp://… RTSP/1.0
CSeq: 5
User-Agent: GStreamer/1.16.2
Range: clock=20210730T153038.0Z-
Require: onvif-replay
Rate-Control: no
Session: CEAB7A2A
Authorization: Digest username=“testuser”, realm=“RtspServerLibrary”, nonce=“…”, uri=“rtsp://…”, response=“ab798dfa01666f5b2a4628ca9a103c2a”
Date: Thu, 26 Aug 2021 12:13:01 GMT
RTSP/1.0 200 OK
Scale: 1
Range: clock=20210730T153038.0Z-
CSeq: 5
Date: Thu, Aug 26 2021 12:12:59 GMT
Session: CEAB7A2A
RTP-Info: url=rtsp://…;seq=4236;rtptime=8097