[AVTCORE] Re: WG Last call on "RTP Control Protocol (RTCP) Messages for Temporal-Spatial Resolution"

[Yong He <[e-mail]>]

Hi Xavier,

Thanks for your kind support and comments.

Your comment on #4.1.1  references is right, the correct reference should be clause 6.3 instead of 5.3.

For your comment on #4.2.1 rewording, I checked a number of IETF RFCs, it looks like both "illegal" and "invalid" are used, I will double check with WG chairs to finalize it.

It is good to know PSFB payload types 11 has been reserved for other purpose, I will check the IANA registry procedure to reserve the types and update the final draft including the typos.

Thanks,
Yong

________________________________
From: Xavier de Foy <[e-mail]>
Sent: Sunday, October 20, 2024 7:08 AM
To: Jonathan Lennox <jonathan.lennox=[e-mail]>
Cc: [e-mail] <[e-mail]>
Subject: [AVTCORE] Re: WG Last call on "RTP Control Protocol (RTCP) Messages for Temporal-Spatial Resolution"


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I support publication of "RTP Control Protocol (RTCP) Messages for Temporal-Spatial Resolution”. This draft enables some of the feedback signalling defined in the green metadata specifications to be used when streaming over RTP.

Here are some very minor comments for the authors in case they find it relevant (to be considered in a future update, this should not impact the WGLC).

# 4.1.1. Message format

There are 3 references to clause 5.3 of [GreenMetadata]. Could you please check if the numbering of the clause is correct? In the copy I am using, the fields frames_per_second, pic_width_in_luma_samples, pic_height_in_luma_samples are defined in section 6.3.

# 4.2.1 Message format

Maybe consider rewording "illegal" to "invalid".

# 4.1 & 4.2 & 7

Just a reminder to fill the IANA considerations and update the values for PSFB Payload Types (currently 11 and 12 in sections 4.1/4.2). The IANA registry already shows the value 11 is now reserved for another purpose.

# 5.

/increasedd/increased/

On Mon, Oct 7, 2024 at 10:34 PM Jonathan Lennox <jonathan.lennox=[e-mail]<mailto:[e-mail]>> wrote:
This is an announcement of a Working Group Last Call (WGLC) on "RTP Control Protocol (RTCP) Messages for Temporal-Spatial Resolution”.

The document is available at https://datatracker.ietf.org/doc/draft-ietf-avtcore-rtcp-green-metadata/

WGLC will last until midnight Pacific time on Tuesday, October 22, 2024.

In response, please indicate one of the following:

* I support publication of "RTP Control Protocol (RTCP) Messages for Temporal-Spatial Resolution”

* I object to publication of "RTP Control Protocol (RTCP) Messages for Temporal-Spatial Resolution” in its current state, due to the following open issues: <link to GitHub issue or issue raised on the mailing list>
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