Re: [payload] [Editorial Errata Reported] RFC8331 (5310)

Ben Campbell <ben@nostrum.com> Thu, 29 March 2018 21:56 UTC

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From: Ben Campbell <ben@nostrum.com>
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Date: Thu, 29 Mar 2018 16:55:59 -0500
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Cc: "payload@ietf.org" <payload@ietf.org>, Alexey Melnikov <aamelnikov@fastmail.fm>, Adam Roach <adam@nostrum.com>, "Ali C. Begen" <ali.begen@networked.media>, "Roni Even (A)" <roni.even@huawei.com>, "amalizia@matrox.com" <amalizia@matrox.com>
To: Thomas Edwards <Thomas.Edwards@fox.com>
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Subject: Re: [payload] [Editorial Errata Reported] RFC8331 (5310)
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Thanks, I marked it as verified.

Ben.

> On Mar 29, 2018, at 4:40 PM, Thomas Edwards <Thomas.Edwards@fox.com> wrote:
> 
> Indeed, I failed in properly adding the two parity bits to the Data_Count in Figure 1!  Anthony is correct.
> 
> -Thomas
> 
> On 3/28/18, 8:33 AM, "Ben Campbell" <ben@nostrum.com> wrote:
> 
>    Hi Thomas and PAYLOAD participants:
> 
>    What do you think; is the errata report correct? Seems like it is borderline between editorial and technical.
> 
>    Thanks!
> 
>    Ben.
> 
>> On Mar 28, 2018, at 9:24 AM, RFC Errata System <rfc-editor@rfc-editor.org> wrote:
>> 
>> The following errata report has been submitted for RFC8331,
>> "RTP Payload for Society of Motion Picture and Television Engineers (SMPTE) ST 291-1 Ancillary Data".
>> 
>> --------------------------------------
>> You may review the report below and at:
>> http://www.rfc-editor.org/errata/eid5310
>> 
>> --------------------------------------
>> Type: Editorial
>> Reported by: Anthony Malizia <amalizia@matrox.com>
>> 
>> Section: 2, Figure 1
>> 
>> Original Text
>> -------------
>> Data_Count=0x84
>> 
>> Data_Count-0x105
>> 
>> Corrected Text
>> --------------
>> Data_Count=0x104
>> 
>> Data_Count-0x205
>> 
>> Notes
>> -----
>> In the example described in section 2, the first ANC packet is said to have 4 User_Data_Words, and the second packet is said to have 5 User_Data_Words.  The values in Figure 1 for the Data_Count fields do not have the correct parity bits according to the definition of Data_Count described in section 2.1.
>> 
>> 4 = 0b0000'0100, with parity bits 0b01'0000'0100 = 0x104
>> 
>> 5 = 0b0000'0101, with parity bits 0b10'0000'0101 = 0x205
>> 
>> Instructions:
>> -------------
>> This erratum is currently posted as "Reported". If necessary, please
>> use "Reply All" to discuss whether it should be verified or
>> rejected. When a decision is reached, the verifying party
>> can log in to change the status and edit the report, if necessary.
>> 
>> --------------------------------------
>> RFC8331 (draft-ietf-payload-rtp-ancillary-14)
>> --------------------------------------
>> Title               : RTP Payload for Society of Motion Picture and Television Engineers (SMPTE) ST 291-1 Ancillary Data
>> Publication Date    : February 2018
>> Author(s)           : T. Edwards
>> Category            : PROPOSED STANDARD
>> Source              : Audio/Video Transport Payloads
>> Area                : Applications and Real-Time
>> Stream              : IETF
>> Verifying Party     : IESG
> 
> 
>