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RTP Control Protocol (RTCP) Extended Report (XR) Block for De-Jitter Buffer Metric Reporting
draft-ietf-xrblock-rtcp-xr-jb-14

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 IESG member
Yes
Yes (for -12) Unknown

                            
Richard Barnes Former IESG member
Yes
Yes (for -12) Unknown

                            
Spencer Dawkins Former IESG member
Yes
Yes (2013-06-21 for -12) Unknown
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 IESG member
No Objection
No Objection (for -12) Unknown

                            
Barry Leiba Former IESG member
No Objection
No Objection (for -12) Unknown

                            
Benoît Claise Former IESG member
No Objection
No Objection (2013-06-26 for -12) Unknown
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 IESG member
No Objection
No Objection (for -12) Unknown

                            
Joel Jaeggli Former IESG member
No Objection
No Objection (for -12) Unknown

                            
Martin Stiemerling Former IESG member
No Objection
No Objection (for -12) Unknown

                            
Pete Resnick Former IESG member
No Objection
No Objection (for -12) Unknown

                            
Sean Turner Former IESG member
No Objection
No Objection (for -12) Unknown

                            
Stephen Farrell Former IESG member
No Objection
No Objection (for -12) Unknown

                            
Stewart Bryant Former IESG member
No Objection
No Objection (for -12) Unknown

                            
Ted Lemon Former IESG member
No Objection
No Objection (for -12) Unknown