
From nobody Wed Apr 19 06:19:34 2017
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Subject: [video-codec] netvc - New Meeting Session Request for IETF 99
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A new meeting session request has just been submitted by Natasha Rooney, a Chair of the netvc working group.


---------------------------------------------------------
Working Group Name: Internet Video Codec
Area Name: Applications and Real-Time Area
Session Requester: Natasha Rooney

Number of Sessions: 1
Length of Session(s):  1.5 Hours
Number of Attendees: 50
Conflicts to Avoid: 
 First Priority: codec rtcweb dispatch sipcore mmusic perc cellar
 Second Priority: avtcore payload avtext raiarea xrblock clue



People who must be present:
  Adam Roach
  Jean-Marc Valin
  Alissa Cooper
  Tim Terriberry
  David Benham
  Mo Zanaty
  Thomas Daede
  Alexey Filippov
  Natasha Rooney

Resources Requested:

Special Requests:
  Please make one of the 1080p projectors available for this session. Thanks!
---------------------------------------------------------


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From: Natasha Rooney <nrooney@gsma.com>
To: "video-codec@ietf.org" <video-codec@ietf.org>
Thread-Topic: IETF99 Session Request
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Subject: [video-codec] IETF99 Session Request
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Hi all - I have made a request for a session at IETF99. We will update you =
all on the allocated time and day as soon as we know.

Just a reminder as well that IETF99 Registration is open! Their are still h=
otel rooms available, but probably not for long!
https://www.ietf.org/meeting/99/

Natasha

Natasha Rooney | Internet Engineering Director | Internet and Web Team | Te=
chnology | GSMA | nrooney@gsma.com<mailto:nrooney@gsma.com> | +44 (0) 7730 =
219 765 | @thisNatasha | Skype: nrooney@gsm.org<mailto:nrooney@gsm.org>


This email and its attachments are intended for the above named only and ma=
y be confidential. If they have come to you in error you must take no actio=
n based on them, nor must you copy or show them to anyone; please reply to =
this email or call +44 207 356 0600 and highlight the error.

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<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"=
>
</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin=
e-break: after-white-space;" class=3D"">
Hi all - I have made a request for a session at IETF99. We will update you =
all on the allocated time and day as soon as we know.
<div class=3D""><br class=3D"">
</div>
<div class=3D"">Just a reminder as well that IETF99 Registration is open! T=
heir are still hotel rooms available, but probably not for long!</div>
<div class=3D""><a href=3D"https://www.ietf.org/meeting/99/" class=3D"">htt=
ps://www.ietf.org/meeting/99/</a></div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">Natasha&nbsp;<br class=3D"">
<div class=3D"">
<div class=3D"">
<div style=3D"color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px;=
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transform: none; white-space: normal; widows: auto; word-spacing: 0px; -web=
kit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;">
<br class=3D"">
Natasha Rooney | Internet Engineering&nbsp;Director | Internet and Web Team=
 |&nbsp;Technology | GSMA |&nbsp;<a href=3D"mailto:nrooney@gsma.com" class=
=3D"">nrooney@gsma.com</a>&nbsp;| &#43;44 (0) 7730 219&nbsp;765 | @thisNata=
sha | Skype:&nbsp;<a href=3D"mailto:nrooney@gsm.org" class=3D"">nrooney@gsm=
.org</a></div>
</div>
<br class=3D"">
</div>
</div>
<p style=3D"font-family: Arial,sans-serif;font-size:11px;color:#999999;"><s=
pan lang=3D"EN-US" style=3D"font-family: Arial,sans-serif;color:#999999; ms=
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From nobody Mon Apr 24 11:41:03 2017
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Subject: [video-codec] Fwd: New Version Notification for draft-terriberry-netvc-codingtools-02.txt
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Since this was expiring, I pushed an update.

This removes the discussion of the simplified non-dyadic partition 
function for the arithmetic coder and replaces it with a dyadic one that 
uses smaller multiplies to save on hardware costs.

-------- Forwarded Message --------
Subject: New Version Notification for 
draft-terriberry-netvc-codingtools-02.txt
Date: Mon, 24 Apr 2017 11:37:39 -0700
From: internet-drafts@ietf.org
To: Nathan Egge <negge@xiph.org>, Nathan E. Egge <negge@xiph.org>, 
Timothy Terriberry <tterribe@xiph.org>, Timothy B. Terriberry 
<tterribe@xiph.org>


A new version of I-D, draft-terriberry-netvc-codingtools-02.txt
has been successfully submitted by Timothy B. Terriberry and posted to the
IETF repository.

Name:		draft-terriberry-netvc-codingtools
Revision:	02
Title:		Coding Tools for a Next Generation Video Codec
Document date:	2017-04-24
Group:		Individual Submission
Pages:		24
URL: 
https://www.ietf.org/internet-drafts/draft-terriberry-netvc-codingtools-02.txt
Status: 
https://datatracker.ietf.org/doc/draft-terriberry-netvc-codingtools/
Htmlized: 
https://tools.ietf.org/html/draft-terriberry-netvc-codingtools-02
Htmlized: 
https://datatracker.ietf.org/doc/html/draft-terriberry-netvc-codingtools-02
Diff: 
https://www.ietf.org/rfcdiff?url2=draft-terriberry-netvc-codingtools-02

Abstract:
    This document proposes a number of coding tools that could be
    incorporated into a next-generation video codec.

 



Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

The IETF Secretariat


From nobody Fri Apr 28 03:54:11 2017
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Subject: [video-codec] I-D Action: draft-ietf-netvc-requirements-06.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Internet Video Codec of the IETF.

        Title           : <Video Codec Requirements and Evaluation Methodology>
        Authors         : Alexey Filippov
                          Andrey Norkin
                          Jose Roberto Alvarez
	Filename        : draft-ietf-netvc-requirements-06.txt
	Pages           : 25
	Date            : 2017-04-28

Abstract:
   This document provides requirements for a video codec designed
   mainly for use over the Internet. In addition, this document
   describes an evaluation methodology needed for measuring the
   compression efficiency to ensure whether the stated requirements are
   fulfilled or not.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-netvc-requirements/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-netvc-requirements-06
https://datatracker.ietf.org/doc/html/draft-ietf-netvc-requirements-06

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-netvc-requirements-06


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From nobody Fri Apr 28 04:29:35 2017
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From: Filippov Alexey <Alexey.Filippov@huawei.com>
To: "video-codec@ietf.org" <video-codec@ietf.org>, netvc-chairs <netvc-chairs@tools.ietf.org>
CC: Zhoujiantong <zhoujiantong@huawei.com>, Jose Alvarez <jose.roberto.alvarez@huawei.com>, Andrey Norkin <anorkin@netflix.com>, "Timothy B. Terriberry" <tterribe@xiph.org>, Thomas Daede <tdaede@mozilla.com>
Thread-Topic: Version -06 of the requirements draft 
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Date: Fri, 28 Apr 2017 11:24:16 +0000
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Subject: [video-codec] Version -06 of the requirements draft
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Dear colleagues,

Today, version -06 of the requirements draft was published. The only change=
 in the document is in Section 3.1.1. The sentence=20
"3.1.1:The most basic requirement is coding efficiency, i.e. compression pe=
rformance on both "easy" and "difficult" natural content as well as screen =
sharing content (both static and dynamic)."=20
was replaced by=20
"3.1.1:The most basic requirement is coding efficiency, i.e. compression pe=
rformance on both "easy" and "difficult" content for applications and use c=
ases in Section 2."=20
It is done to keep the requirements draft consistent with the testing draft=
 where different content is used for estimating compression performance.

In addition, we (the authors of the requirements draft) would like to comme=
nt on the changes appeared in version -05 of the document and discussed at =
the meeting in Chicago.

3.1.3: Bitstream syntax should allow extensibility and backward compatibili=
ty. New features can be supported easily by using metadata (e.g., such as S=
EI messages, VUI, headers) without affecting the bitstream compatibility wi=
th legacy decoders. A newer version of the decoder shall be able to play bi=
tstreams of an older version of the same or lower profile and level.   =20
=20
Our comment: In fact, this requirement was contained in the previous versio=
ns of the draft (starting from version -02). In particular, SEI messages, V=
UI and headers were mentioned there. To clarify this point, it is NOT a req=
uirement that a new version of the codec with new coding tools has to suppo=
rt the older versions of that codec. It merely states that extending the cu=
rrent codec with support of new metadata, such as video source information =
etc, should not break compatibility with older bitstreams of the same codec=
. That is, the syntax for signaling metadata should be extensible and addin=
g new metadata should not break compatibility with older decoders. The deco=
ders should just ignore metadata they do not understand.


Minor changes in Section 3.2.2. "Coding delay": Support of efficient random=
 access point encoding (such as intra coding and resetting of context varia=
bles) as well as efficient switching between multiple quality representatio=
ns.
=20
Our comment: This requirement was in the description of the use cases in th=
e document (e.g., in section 2.1 "Internet Video Streaming"), now it is als=
o explicitly mentioned in the requirements


3.2.3. Complexity: Feasible real-time implementation of both an encoder and=
 a decoder supporting a chosen subset of tools for hardware and software im=
plementation on a wide range of state-of-the-art platforms. The real-time e=
ncoder tools subset should provide meaningful improvement in compression ef=
ficiency at reasonable complexity of hardware and software encoder implemen=
tations as compared to current real-time implementations of state-of-the-ar=
t video compression technologies such as HEVC/H.265 and VP9.
=20
Our comment: This is just a clarification regarding what a feasible real-ti=
me implementation means.


Your further questions and comments are welcome!

--
Best regards,
Alexey Filippov

