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RTP Control Protocol (RTCP) Extended Report (XR) Block for De-Jitter Buffer Metric Reporting
RFC 7005

Yes

(Gonzalo Camarillo)
(Richard Barnes)

No Objection

(Adrian Farrel)
(Barry Leiba)
(Jari Arkko)
(Joel Jaeggli)
(Martin Stiemerling)
(Pete Resnick)
(Sean Turner)
(Stephen Farrell)
(Stewart Bryant)
(Ted Lemon)

Note: This ballot was opened for revision 12 and is now closed.

(Gonzalo Camarillo; former steering group member) Yes

Yes (for -12)

                            

(Richard Barnes; former steering group member) Yes

Yes (for -12)

                            

(Spencer Dawkins; former steering group member) Yes

Yes (2013-06-21 for -12)
In 3.  Jitter Buffer Operation

   Overall user perceived delay = network round trip delay + local
   (jitter buffer (nominal) delay + encoder serialization delay) +
   remote (jitter buffer (nominal) delay + encoder serialization delay)

This is likely a stupid question, but are both local and remote serialization delays "encoder" delays? Or are "decoder" delays negligible? Or am I missing a term of RTCP art?

In 5.  SDP Signaling

   [RFC3611] defines the use of SDP (Session Description Protocol)
   [RFC4566] for signaling the use of XR blocks.  However XR blocks MAY
   be used without prior signaling (see section 5 of RFC3611).

This text is saying, to me:

- You can signal the use of XR blocks in SDP,

- or not

- but if you do signal the use of XR blocks in SDP, here's how you would do that for JB

Is there any guidance you can give about which choice an implementer should lean toward?

(Adrian Farrel; former steering group member) No Objection

No Objection (for -12)

                            

(Barry Leiba; former steering group member) No Objection

No Objection (for -12)

                            

(Benoît Claise; former steering group member) No Objection

No Objection (2013-06-26 for -12)
Same remark as for draft-ietf-xrblock-rtcp-xr-discard. jitter buffer versus de-jitter buffer. I know it's mentioned in section 1.4, but some changes would ideal. The draft is not consistent.

(Jari Arkko; former steering group member) No Objection

No Objection (for -12)

                            

(Joel Jaeggli; former steering group member) No Objection

No Objection (for -12)

                            

(Martin Stiemerling; former steering group member) No Objection

No Objection (for -12)

                            

(Pete Resnick; former steering group member) No Objection

No Objection (for -12)

                            

(Sean Turner; former steering group member) No Objection

No Objection (for -12)

                            

(Stephen Farrell; former steering group member) No Objection

No Objection (for -12)

                            

(Stewart Bryant; former steering group member) No Objection

No Objection (for -12)

                            

(Ted Lemon; former steering group member) No Objection

No Objection (for -12)