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Re: Proposed Charter Changes

From: Eric Rescorla <ekr@rtfm.com>
Date: Wed, 1 Apr 2015 15:29:58 -0700
Message-ID: <CABcZeBOphHaXhAWJ_OzQ8PSkqCv+48fUtfX08x=8nmS_u0yXgg@mail.gmail.com>
To: Göran Eriksson AP <goran.ap.eriksson@ericsson.com>
Cc: "Cullen Jennings (fluffy)" <fluffy@cisco.com>, public-webrtc <public-webrtc@w3.org>
On Wed, Apr 1, 2015 at 2:29 PM, Göran Eriksson AP <
goran.ap.eriksson@ericsson.com> wrote:

> Hi,
>
> Just a few questions to ensure I don¹t misunderstand:
>
> >
> >s the name implies, WebRTC 1.0: Real-time Communication Between Browsers
> >is to be considered as a first version of APIs for real-time
> >communication. The working group will, once WebRTC 1.0: Real-time
> >Communication Between Browsers reaches Candidate Recommendation, consider
> >proposals for backward-compatible object-oriented extensions to this API.
>
> I assume ³backward-compatible² include the possibility of the 1.0 API
> being supported using a js-shim on the evolved object-oriented/inspired
> low-level API's?
>
> The word ³extension²; does that mean new functionality ³only² could be
> object-oriented or does it also allow for existing functionality in 1.0 to
> be supported with low-level oo- API's, replacing 1.0 approach API's, were
> the WG to consider that motivated and desirable?
>
>

I interpret this as requiring that implementations written to the 1.0 API
function with the 1.1 API. If implementations want to internally do just OO
APIs and have a JSL, that's their business.

Cullen, is that what you meant?

-Ekr




> Best Regards
> Göran
>
>
> >
> >
> >To make things easy to diff, you can find the text for the current
> >charter at
> >
> https://github.com/fluffy/webrtc-charter/blob/gh-pages/current-charter.txt
> >
> >The proposed version of the charter that the AC voted on is at
> >
> https://github.com/fluffy/webrtc-charter/blob/gh-pages/proposed-charter.tx
> >t
> >
> >The charter I am proposing is in the fluffy branch of that repo and is at
> >https://github.com/fluffy/webrtc-charter/blob/fluffy/proposed-charter.txt
> >
> >The diff of what I am proposing to the charter that the AC reps voted on
> >is at
> >https://github.com/fluffy/webrtc-charter/compare/gh-pages...fluffy:fluffy
> >
> >
> >
> >The full charter I am proposing is below
> >-----------------------------------------------------
> >
> >Web Real-Time Communications Working Group Charter
> >
> >The mission of the Web Real-Time Communications Working Group, part of
> >the Ubiquitous Web Applications Activity, is to define client-side APIs
> >to enable Real-Time Communications in Web browsers.
> >
> >These APIs should enable building applications that can be run inside a
> >browser, requiring no extra downloads or plugins, that allow
> >communication between parties using audio, video and supplementary
> >real-time communication, without having to use intervening servers
> >(unless needed for firewall traversal, or for providing intermediary
> >services). APIs enabling supplementary functions, such as recording,
> >image capture and screen sharing are also in scope.
> >
> >Join the Web Real-Time Communications Working Group.
> >
> >End date       March 2017
> >Confidentiality        Proceedings are public
> >Initial Chairs
> >Harald Alvestrand
> >Stefan Håkansson
> >Team Contacts
> >(FTE %: 10)    Dominique Hazaël-Massieux
> >Usual Meeting Schedule Teleconferences: approximately 1 per month
> >Face-to-face: up to 3-4 per year
> >
> >Scope
> >
> >Enabling real-time communications between Web browsers require the
> >following client-side technologies to be available:
> >
> >API functions to explore device capabilities, e.g. camera, microphone,
> >speakers,
> >API functions to capture media from local devices (e.g. camera and
> >microphone, but also output devices such as a screen),
> >API functions for encoding and other processing of those media streams,
> >API functions for establishing direct peer-to-peer connections, including
> >firewall/NAT traversal
> >API functions for decoding and processing (including echo cancelling,
> >stream synchronization and a number of other functions) of those streams
> >at the incoming end,
> >Delivery to the user of those media streams via local screens and audio
> >output devices (partially covered with HTML5)
> >
> >Success Criteria
> >
> >To advance to Proposed Recommendation, each specification is expected to
> >have two independent implementations of each feature defined in the
> >specification.
> >
> >To advance to Proposed Recommendation, interoperability between the
> >independent implementations (that is, bidirectional audio and video
> >communication between the implementations) should be demonstrated.
> >
> >Out of Scope
> >
> >The definition of the network protocols used to establish the connections
> >between peers is out of scope for this group; in general, it is expected
> >that protocols considerations will be handled in the IETF.
> >
> >The definition of any new codecs for audio and video is out of scope.
> >
> >Deliverables
> >
> >Recommendation-Track Deliverables
> >
> >The working group will deliver specifications that cover at least the
> >following functions, unless they are found to be fully specified within
> >other working groups' finished results:
> >
> >Media Stream Functions
> >API functions to manipulate media streams for interactive real-time
> >communications, connecting various processing functions to each other,
> >and to media devices and network connections, including media
> >manipulation functions for e.g. allowing to synchronize streams.
> >Supplementary functions such as recording of media streams are also in
> >scope.
> >Audio Stream Functions
> >An extension of the Media Stream Functions to process audio streams, to
> >enable features such as automatic gain control, mute functions and echo
> >cancellation.
> >Video Stream Functions
> >An extension of the Media Stream Functions to process video streams, to
> >enable features such as bandwidth limiting, image manipulation or "video
> >mute".
> >Functional Component Functions
> >API functions that allow to query for the components present in an
> >implementation, instantiate them, and connect them to media streams.
> >P2P Connection Functions
> >API functions to provide interfaces that enable the conveyance of
> >parameters necessary to establish peer to peer connections, based on the
> >protocols selected by the IETF RTCWeb Working Group. Included in this
> >category are also API functions to allow identification of the peer.
> >The working group may decide to group the specified functions in one or
> >more specifications. The Working Group has already started and will
> >continue work on the following specifications:
> >
> >WebRTC 1.0: Real-time Communication Between Browsers
> >
> >JavaScript APIs to allow media and data to be sent to and received from
> >another browser or device implementing the appropriate set of real-time
> >protocols
> >Identifiers for WebRTC's Statistics API
> >JavaScript APIs that allow access to statistical information about a
> >peer-to-peer connection established via the WebRTC API
> >as well as on the following specifications jointly developed with the
> >Device APIs Working Group:
> >
> >Media Capture and Streams
> >JavaScript APIs that allow local media, including audio and video, to be
> >requested from a platform
> >MediaStream Recording
> >a JavaScript API to record MediaStreams
> >MediaStream Image Capture
> >a JavaScript API to capture still images from a video MediaStream
> >Media Capture Depth Stream Extensions
> >An extension to the Media Capture and Streams API to capture depth
> >streams (e.g. from 3D cameras)
> >Media Capture from DOM Elements
> >An extension to DOM elements to allow to capture a media stream from
> >their content
> >Audio Output Devices API
> >JavaScript APIs that let a Web application manage how audio is rendered
> >on the user audio output devices
> >Screen Capture API
> >An extension to the Media Capture and Streams API to use a user's
> >display, or parts thereof, as the source of a MediaStream.
> >This work will be done in collaboration with the IETF. The W3C will
> >define APIs to ensure that application developers can control the
> >components or the architecture for selection and profiling of the wire
> >protocols that will be produced by the IETF Real-Time Communication in
> >WEB-browsers (RTCWeb) Working Group. While the specified API Functions
> >will not constrain implementations into supporting a specific profile,
> >they will be compatible with the Profile that will be specified by the
> >RTCWeb Working Group.
> >
> >As the name implies, WebRTC 1.0: Real-time Communication Between Browsers
> >is to be considered as a first version of APIs for real-time
> >communication. The working group will, once WebRTC 1.0: Real-time
> >Communication Between Browsers reaches Candidate Recommendation, consider
> >proposals for backward-compatible object-oriented extensions to this API.
> >
> >The specified API Functions and the requirements on their implementation
> >must offer functionality that ensures that users' expectations of privacy
> >and control over their devices are met - this includes, but is not
> >limited to, ensuring that users can control what local devices an
> >application can access for capturing media, and are able to at any time
> >revoke that access.
> >
> >Similarly, all the deliverables must address issues of security - this
> >includes, but is not limited to, ensuring that arbitrary UDP packets
> >cannot be sent to arbitrary destinations and ports. The security and
> >privacy goals and requirements will be developed in coordination with the
> >IETF RTCWeb Working Group.
> >
> >Similarly, all deliverables must address issues of accessibility
> >including relevant requirements listed in the Media User Accessibility
> >Requirements document (MAUR), such as multiple well-synchronized
> >instances of the same media type. The accessibility goals and
> >requirements will be developed in coordination with the Accessible
> >Platform Architectures Working Group.
> >
> >Other Deliverables
> >
> >A comprehensive test suite for all features of a specification is
> >necessary to ensure the specification's robustness, consistency, and
> >implementability, and to promote interoperability between User Agents.
> >Therefore, each specification must have a companion test suite, which
> >should be completed by the end of the Last Call phase, and must be
> >completed, with an implementation report, before transition from
> >Candidate Recommendation to Proposed Recommendation. Additional tests may
> >be added to the test suite at any stage of the Recommendation track, and
> >the maintenance of a implementation report is encouraged.
> >
> >Other non-normative documents may be created such as:
> >
> >Primers
> >
> >Requirements and use case document for specifications.
> >Non-normative group notes
> >Given sufficient resources, this Working Group should review other
> >working groups' deliverables that are identified as being relevant to the
> >Working Group's mission.
> >
> >Milestones
> >
> >Milestones
> >Note: The group will document significant changes from this initial
> >schedule on the group home page.
> >Specification  FPWD    CR      PR      Rec
> >Media Capture and Streams      2011-10-27      Q2 2015 Q1 2016 Q2 2016
> >WebRTC 1.0: Real-time Communication Between Browsers   2011-10-27      Q4
> >2015   Q4 2016 Q1 2017
> >MediaStream Recording  2013-02-25      Q4 2015 Q3 2016 Q1 2017
> >MediaStream Image Capture      2013-07-09      Q2 2016 Q2 2017 Q3 2017
> >Media Capture Depth Stream Extensions  2014-10-07      Q2 2016 Q2 2017 Q3
> 2017
> >Identifiers for WebRTC's Statistics API        2014-10-21      Q4 2015 Q4
> 2016 Q1 2017
> >Media Capture from DOM Elements        Q1 2015 Q4 2015 Q3 2016 Q4 2016
> >Audio output API       Q1 2015 Q3 2015 Q2 2016 Q3 2016
> >Screen Capture API     Q1 2015 Q4 2015 Q3 2016 Q4 2016
> >WebRTC 1.1:Real-time Communication Between Browsers    Q1 2016 Q2 2017 Q4
> >2017   Q1 2018
> >
> >Dependencies and Liaisons
> >
> >W3C Groups
> >
> >HTML Working Group
> >The HTML Working Group defines a number of markup elements and APIs that
> >serves as the basis on which the RTC APIs have been developed; in
> >particular, several specifications of this group extends the <audio> and
> ><video> elements
> >Web Applications Working Group
> >Some of the Web Applications Working Group APIs (such as the Web Sockets
> >API) have served as inspiration or starting points for the APIs developed
> >by the RTC Working Group. The work on Push Notifications provides an
> >important feature for many WebRTC use cases. In addition, all the APIs
> >developed by this group are based on WebIDL which the Web Applications
> >Working Group is specifying.
> >Device APIs Working Group
> >The Device APIs Working Group jointly develops the media capture-related
> >APIs with this group.
> >Audio Working Group
> >The API developed by the Audio Working Group builds upon the MediaStream
> >object built by this group; further collaboration on the management of
> >audio output device is expected
> >Web Application Security Working Group
> >The Web Application Security Working Group is developing guidance on APIs
> >that expose sensitive information, and an API to manage permissions, both
> >of which matter to several of this group specifications
> >Web Cryptography API
> >WebRTC connections are encrypted end-to-end; collaboration is expected
> >with the Web Cryptography Working Group on exposing and manipulating some
> >of the cryptography functions used
> >Second Screen Presentation Working Group
> >The Second Screen Presentation Working Group is developing APIs to allow
> >rendering of media on secondary devices; potential overlap with features
> >enabled by the Audio Output Device APIs will need to be looked at
> >WAI Protocols and Formats Working Group
> >Reviews from the WAI PF Working Group will be required to ensure the APIs
> >allow to create an accessible user experience.
> >Web and TV Interest Group
> >Work on gathering use cases and requirements for Home Networking
> >scenarios within the Web and TV Interest Group may uncover aspects that
> >affect the design of real-time communications functions. The RTC Working
> >Group will coordinate with the Web and TV Interest Group on these use
> >cases and requirements as appropriate.
> >Privacy Interest Group
> >Several of the specifications developed by this group have potential
> >impact on the privacy of users; reviews from the privacy interest group
> >will be sought on these specifications
> >Web Security Interest Group
> >Several of the specifications developed by this group have a complex
> >impact on the security model of the Web; reviews from the Web Security
> >Interest Group will be sought.
> >
> >External Groups
> >
> >IETF Real-Time Communication in WEB-browsers group (RTCWeb)
> >The RTC APIs developed by this group will build upon the protocols and
> >formats developed in the IETF RTCWeb Working Group, which will in general
> >handle dependencies to other IETF Working Groups.
> >
> >Participation
> >
> >To be successful, the Web Real-Time Communications Working Group is
> >expected to have 10 or more active participants for its duration.
> >Effective participation to Web Real-Time Communications Working Group is
> >expected to consume one work day per week for each participant; two days
> >per week for editors. The Web Real-Time Communications Working Group will
> >allocate also the necessary resources for building Test Suites for each
> >specification.
> >
> >Participants are reminded of the Good Standing requirements of the W3C
> >Process.
> >
> >Communication
> >
> >This group primarily conducts its work on the public mailing list
> >public-webrtc@w3.org (archives).
> >
> >The group uses a Member-confidential mailing list for administrative
> >purposes and, at the discretion of the Chairs and participants of the
> >group, for Member-only discussions in special cases when a particular
> >participant requests such a discussion.
> >
> >Information about the group (deliverables, participants, face-to-face
> >meetings, teleconferences, etc.) is available from the Web Real-Time
> >Communications Working Group home page.
> >
> >Decision Policy
> >
> >As explained in the Process Document (section 3.3), this group will seek
> >to make decisions when there is consensus. When the Chair puts a question
> >and observes dissent, after due consideration of different opinions, the
> >Chair should record a decision (possibly after a formal vote) and any
> >objections, and move on.
> >
> >Patent Policy
> >
> >This Working Group operates under the W3C Patent Policy (5 February 2004
> >Version). To promote the widest adoption of Web standards, W3C seeks to
> >issue Recommendations that can be implemented, according to this policy,
> >on a Royalty-Free basis.
> >
> >For more information about disclosure obligations for this group, please
> >see the W3C Patent Policy Implementation.
> >
> >About this Charter
> >
> >This charter for the Web Real-Time Communications Working Group has been
> >created according to section 6.2 of the Process Document. In the event of
> >a conflict between this document or the provisions of any charter and the
> >W3C Process, the W3C Process shall take precedence.
> >
> >This charter updates and replaces the first WebRTC Working Group charter
> >approved in 2011.
>
>
>
Received on Wednesday, 1 April 2015 22:31:08 UTC

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