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Re: [payload] Addressing comments on 2nd WGLC of draft-ietf-payload-rtp-ancillary-08

Thomas Edwards <Thomas.Edwards@fox.com> Thu, 11 May 2017 18:11 UTC

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From: Thomas Edwards <Thomas.Edwards@fox.com>
To: "payload@ietf.org" <payload@ietf.org>
Thread-Topic: Addressing comments on 2nd WGLC of draft-ietf-payload-rtp-ancillary-08
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Date: Thu, 11 May 2017 18:05:43 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/payload/Ykr4Vc2_kb4KdTEakRUlsp66-n4>
Subject: Re: [payload] Addressing comments on 2nd WGLC of draft-ietf-payload-rtp-ancillary-08
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Regarding number of streams in multi-stream SDI interfaces where Ancillary data could be placed, Rec. ITU-R BT.2077-1 Table 3-1 “4320-line image formats” shows a maximum of 128 streams, so I will ensure the next draft of draft-ietf-payload-rtp-ancillary can handle that.  It is true that for some of these formats (such as 10G-HDSDI) only the first stream on a link “should” be used for Ancillary data, but it is too complex to try to simplify the representation, and it is different for various kinds of multi-stream interfaces.  So 7 bits will be used for this field.

-Thomas

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Thomas Edwards
VP Engineering & Development
FOX Networks Engineering and Operations
thomas.edwards@fox.com
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10201 West Pico Blvd.
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