Re: [xrblock] FW: I-D Action: draft-ietf-xrblock-rtcp-xr-summary-stat-01.txt - review
"Huangyihong (Rachel)" <rachel.huang@huawei.com> Wed, 17 October 2012 07:04 UTC
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From: "Huangyihong (Rachel)" <rachel.huang@huawei.com>
To: Roni Even <ron.even.tlv@gmail.com>, "xrblock@ietf.org" <xrblock@ietf.org>
Thread-Topic: [xrblock] FW: I-D Action: draft-ietf-xrblock-rtcp-xr-summary-stat-01.txt - review
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Subject: Re: [xrblock] FW: I-D Action: draft-ietf-xrblock-rtcp-xr-summary-stat-01.txt - review
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Hi Roni, Thanks for your review. Please see my reply inline. Best Regards! Rachel -----Original Message----- From: Roni Even [mailto:ron.even.tlv@gmail.com] Sent: Wednesday, October 17, 2012 12:38 AM To: Huangyihong (Rachel); xrblock@ietf.org Subject: RE: [xrblock] FW: I-D Action: draft-ietf-xrblock-rtcp-xr-summary-stat-01.txt - review Hi, I read the draft and have some comments. 1. Is these blocks used for any media type or just video. The text hints at video but it will be good to discuss it in the introduction. [Rachel]: The first two blocks (Burst/Gap Loss Summary Statistics Block and Burst/Gap Discard Summary Statistics Block) are applicable to any media type and not limited to video, while the last metrics block (i.e., Frame Impairment Statistics Summary Block) is only used for video. We would add some texts to clarify this. 2. In the introduction the following sentence "These two blocks are intended to be used in conjunction with information from the Burst Gap Loss metric block or Burst Gap Discard metric block, and on which these two block therefore depends." Maybe add reference to the two metric blocks since they are mentioned as normative. [Rachel]: Okay. 3. The draft talk about frames and packet. Current codecs like H.264 use the term access units and IDR, look at section 4.1 of RFC6184 maybe use some of the terminology from there in the terminology section. [Rachel]: Good point, for terminology consistency, we'd like to propose the following change to terminology section: OLD TEXT: " Picture Type Picture types used in the different video algorithms compose of the key-frame and the Derived frame. Key-frame is also called a reference frame and used as a reference for predicting other pictures. It is coded without prediction from other pictures. The Derived frame is derived from Key-frame using prediction from the reference frame. " NEW TEXT: " Picture Type Picture types used in the different video algorithms compose of the key frame and the Derived frame. Key frame is also called a intra-coded frame [H.222.0] or IDR picture [H.264]and used as a reference frame for predicting other pictures. It is coded without prediction from other pictures. The Derived frame is derived from Key-frame using prediction. " 4. in section 3.2.2 the reserved field has the definition of the I field. [Rachel]: Good catch and will fix this. Thanks Roni even -----Original Message----- From: xrblock-bounces@ietf.org [mailto:xrblock-bounces@ietf.org] On Behalf Of Huangyihong (Rachel) Sent: 15 October, 2012 6:04 AM To: xrblock@ietf.org Subject: [xrblock] FW: I-D Action: draft-ietf-xrblock-rtcp-xr-summary-stat-01.txt Dear all, Here is the update of draft-ietf-xrblock-rtcp-xr-summary-stat, which mainly addressed the issues discussed in the list and raised in last meeting. If you have any different opinions, please let us know. Best Regards! Rachel -----Original Message----- From: xrblock-bounces@ietf.org [mailto:xrblock-bounces@ietf.org] On Behalf Of internet-drafts@ietf.org Sent: Monday, October 15, 2012 10:43 AM To: i-d-announce@ietf.org Cc: xrblock@ietf.org Subject: [xrblock] I-D Action: draft-ietf-xrblock-rtcp-xr-summary-stat-01.txt A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Metric Blocks for use with RTCP's Extended Report Framework Working Group of the IETF. Title : RTP Control Protocol (RTCP) Extended Report (XR) Block for Summary Statistics Metrics Reporting Author(s) : Glen Zorn Roland Schott Qin Wu Rachel Huang Filename : draft-ietf-xrblock-rtcp-xr-summary-stat-01.txt Pages : 15 Date : 2012-10-14 Abstract: This document defines three RTP Control Protcol (RTCP) Extended Report (XR) Blocks and associated SDP parameters that allows the reporting of loss, duplication and discard summary statistics metrics for use in a range of RTP applications. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-xrblock-rtcp-xr-summary-stat There's also a htmlized version available at: http://tools.ietf.org/html/draft-ietf-xrblock-rtcp-xr-summary-stat-01 A diff from the previous version is available at: http://www.ietf.org/rfcdiff?url2=draft-ietf-xrblock-rtcp-xr-summary-stat-01 Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ _______________________________________________ xrblock mailing list xrblock@ietf.org https://www.ietf.org/mailman/listinfo/xrblock _______________________________________________ xrblock mailing list xrblock@ietf.org https://www.ietf.org/mailman/listinfo/xrblock
- Re: [xrblock] FW: I-D Action: draft-ietf-xrblock-… Roni Even
- Re: [xrblock] FW: I-D Action: draft-ietf-xrblock-… Huangyihong (Rachel)