[AVTCORE] [Editorial Errata Reported] RFC5109 (3461)

RFC Errata System <rfc-editor@rfc-editor.org> Wed, 16 January 2013 21:00 UTC

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Date: Wed, 16 Jan 2013 12:49:50 -0800
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Subject: [AVTCORE] [Editorial Errata Reported] RFC5109 (3461)
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The following errata report has been submitted for RFC5109,
"RTP Payload Format for Generic Forward Error Correction".

--------------------------------------
You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=5109&eid=3461

--------------------------------------
Type: Editorial
Reported by: Adam Li <adamli@hyervision.com>

Section: 10.2

Original Text
-------------
In Figure 15,

   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |0|0|0|0|0 0 0 0|0|0 0 1 1 0 0 1|0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0|
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   ....

      P rec.:    0     [0 XOR 0 XOR 0 XOR 0]
      X rec.:    0     [0 XOR 0 XOR 0 XOR 0]
      CC rec.:   0     [0 XOR 0 XOR 0 XOR 0]
      M rec.:    0     [1 XOR 0 XOR 1 XOR 0]

Corrected Text
--------------
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |0|0|0|0|0 0 0 0|1|0 0 1 1 0 0 1|0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0|
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   ....

      P rec.:    0     [0 XOR 0]
      X rec.:    0     [0 XOR 0]
      CC rec.:   0     [0 XOR 0]
      M rec.:    1     [1 XOR 0]

Notes
-----
These fields (P rec., X rec., CC rec., and M rec.) should be calculated from the packets that are protected at Level 0 (as specified). The specification text in previous sections are all correct. This change here is only a typo in the examples, but correcting it helps to understand the specification.

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--------------------------------------
RFC5109 (draft-ietf-avt-ulp-23)
--------------------------------------
Title               : RTP Payload Format for Generic Forward Error Correction
Publication Date    : December 2007
Author(s)           : A. Li, Ed.
Category            : PROPOSED STANDARD
Source              : Audio/Video Transport
Area                : Real-time Applications and Infrastructure
Stream              : IETF
Verifying Party     : IESG