Last Call Review of draft-ietf-rtcweb-video-05
I am the assigned Gen-ART reviewer for this draft. For background on
Gen-ART, please see the FAQ at
This review is in response to a request for early Gen-ART review.
Reviewer: Russ Housley
Review Date: 2015-05-15
IETF LC End Date: 2015-04-28
IESG Telechat date: unknown
Summary: Almost Ready
Downref: There is a normative reference to Informational RFC 6386.
There is no mention of the downref in the IETF Last Call, and
RFC 6386 is not listed in the downref registry.
In section 3, the first sentence says: "This section provides guidance
on pre- or post-processing of video streams." s/pre- or/pre- and/
Maybe the intended audience will understand "Y'CbCr 4:2:0", but a
reference would have helped me. I found useful information at
The indented text in Section 5 should begin with "NOTE: ".
In section 6, I assume that "320x240" is measured in pixels. Please
make the text clear.
Section 6.2 says: "Unless otherwise signaled, implementations that use
H.264 MUST encode and decode pixels with a implied 1:1 (square) aspect
ratio." Isn't this true for VP8 as well?
There are references to several outdated I-Ds. Some of the references
point to particular section numbers. I did not check whether the
updates had an impact on these sections, but someone should do so:
- draft-ietf-payload-vp8-11: -15 exists
- draft-ietf-rtcweb-overview-12: -13 exists
- draft-ietf-rtcweb-rtp-usage-06: -23 exists
- draft-ietf-rtcweb-security-arch-09: -11) exists
- draft-ietf-rtcweb-security-06: -08 exists