Re: [payload] [AVTCORE] [Technical Errata Reported] RFC4867 (4349)
Magnus Westerlund <magnus.westerlund@ericsson.com> Wed, 06 April 2016 20:08 UTC
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From: Magnus Westerlund <magnus.westerlund@ericsson.com>
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Date: Wed, 06 Apr 2016 17:08:29 -0300
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Cc: Thomas.Belling@nokia.com, avt@ietf.org, "payload@ietf.org" <payload@ietf.org>
Subject: Re: [payload] [AVTCORE] [Technical Errata Reported] RFC4867 (4349)
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Payload, I should have included you from start. Please provide any input on this Errata as its relate to an RTP Payload format. Cheers Magnus Westerlund (AVTCORE WG chair) Den 2016-04-04 kl. 14:39, skrev Magnus Westerlund: > WG, > > I am co-author of this document. If there are any controversy around the > consensus here I will let my co-chair or the AD judge that. > > However, the WG should progress this Errata. It has been created due to > actual interoperability issues that has been discussed in 3GPP SA4. From > my perspective the errata also represents the intention of the document. > Thus I propose that this errata is verified. Please provide any feedback > by the 18th of April. > > Cheers > > Magnus Westerlund > > > Den 2015-04-27 kl. 12:57, skrev RFC Errata System: >> The following errata report has been submitted for RFC4867, >> "RTP Payload Format and File Storage Format for the Adaptive >> Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs". >> >> -------------------------------------- >> You may review the report below and at: >> http://www.rfc-editor.org/errata_search.php?rfc=4867&eid=4349 >> >> -------------------------------------- >> Type: Technical >> Reported by: Thomas Belling <Thomas.Belling@nokia.com> >> >> Section: 8.1 >> >> Original Text >> ------------- >> mode-set: Restricts the active codec mode set to a subset of all >> modes, for example, to be able to support transport >> channels such as GSM networks in gateway use cases. >> Possible values are a comma separated list of modes from >> the set: 0,...,7 (see Table 1a [2]). The SID frame type >> 8 and NO_DATA (frame type 15) are never included in the >> mode set, but can always be used. If mode-set is >> specified, it MUST be abided, and frames encoded with >> modes outside of the subset MUST NOT be sent in any RTP >> payload or used in codec mode requests. If not present, >> all codec modes are allowed for the payload type. >> >> >> Corrected Text >> -------------- >> mode-set: Restricts the active codec mode set to a subset of all >> modes, for example, to be able to support transport >> channels such as GSM networks in gateway use cases. >> Possible values are a comma separated list of modes from >> the set: 0,...,7 (see Table 1a [2]). The SID frame type >> 8 and NO_DATA (frame type 15) are never included in the >> mode set, but can always be used. If mode-set is >> specified, it MUST be abided, i.e. frames encoded with >> modes outside of the subset MUST NOT be sent in any RTP >> payload and codec mode requests MUST only use modes >> within the mode-set or CMR=15. If the mode-set parameter >> is not present, then all codec modes are allowed for the >> payload type. >> >> >> Notes >> ----- >> The existing text rules out that CMR=15 is used when a mode-set has > been negotiated. However, this contradicts a statement in .clause 4.3.1 > that if a terminal has no preference in which mode to receive, it SHOULD > set CMR=15 in all its outbound payloads. >> >> This erratum has been discussed and endorsed by the 3GPP SA4 group > before submission to IETF. > >> 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 (IESG) >> can log in to change the status and edit the report, if necessary. >> >> -------------------------------------- >> RFC4867 (draft-ietf-avt-rtp-amr-bis-06) >> -------------------------------------- >> Title : RTP Payload Format and File Storage Format for >> the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband >> (AMR-WB) Audio Codecs >> Publication Date : April 2007 >> Author(s) : J. Sjoberg, M. Westerlund, A. Lakaniemi, Q. Xie >> Category : PROPOSED STANDARD >> Source : Audio/Video Transport >> Area : Real-time Applications and Infrastructure >> Stream : IETF >> Verifying Party : IESG >> >> > > -- Magnus Westerlund ---------------------------------------------------------------------- Services, Media and Network features, Ericsson Research EAB/TXM ---------------------------------------------------------------------- Ericsson AB | Phone +46 10 7148287 Färögatan 6 | Mobile +46 73 0949079 SE-164 80 Stockholm, Sweden | mailto: magnus.westerlund@ericsson.com ----------------------------------------------------------------------
- Re: [payload] [AVTCORE] [Technical Errata Reporte… Magnus Westerlund