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Re: WebRTC Web APIs for On-board Multimedia Devices Handling and Control

From: Adam Bergkvist <adam.bergkvist@ericsson.com>
Date: Mon, 8 Jul 2013 10:06:23 +0200
Message-ID: <51DA72FF.8060002@ericsson.com>
To: Venkateswar Reddy Melachervu <vmelachervu@gmail.com>
CC: <public-webrtc@w3.org>
On 2013-07-08 04:26, Venkateswar Reddy Melachervu wrote:
> Team WebRTC,
> First of all let me congratulate you for the awesome work you have done
> and are doing to liberate the multimedia control from the clutches of
> native OS' walled garden while as you read this mail many civil
> societies wage war against the walled freedom across the globe.
>
> I am just beginning to get into the innards of the WebRTC and request
> your patience for what may seem like novice queries.
>
> The over-arching query I've is related the framework for web APIs for
> the control/handling of multimedia devices for audio, video and screen
> share sessions from within a browser-side web app (HTML, Javascript).
> More specifically :
>   - Getting list of available devices and selecting a device for audio,
> video - mic, speaker, camera - session from the OS available devices
>   - Getting and setting device properties like device name, device id,
> sampling rate, echo cancellation etc for audio, video etc. - mic,
> speaker, camera etc.
>   - Getting and setting OS default device for speaker, mic, camera
>   - Muting/un-muting a device/stream
>   - Getting events for:
>        - When a device - mic, speaker, camera becomes
> disabled/unavailable/plugged out
>        - When a device - mic, speaker, camera becomes
> enabled/available/plugged-in
>        - When a device property like sampling rate etc. change - mic,
> speaker, camera
>        - When a default device selection changes - mic, speaker, camera
>
> My question is : are there web APIs (IETF) for WebRTC for the above
> purposes in defined/available today for a web app developer like us who
> is developing a web app (html, javascript only) that cuts across audio,
> video and screen shares - in browsers (desktop and android)? My initial
> searching and google searching did not yield the answer I was looking
> for either across the IETF drafts or web.
>
> These are non-negotiable controls a multimedia web app needs to have to
> offer a seamless, acceptable, WORAB - write once, run on any browser,
> multimedia experience to the end users and for the success of web - more
> so for the success of WebRTC itself, in my view. If not-addressed by
> IETF, browser makers will eventually be forced to introduce proprietary
> APIs - nullifying the global goal of making the web work for all.
>
> Let's liberate the multimedia control from the clutches of OS walled
> garden for the success of web on this very month a great nation attained
> freedom and set an example to the world of freedom and free and open
> markets.
>

Hi

We have two documents that specify, or is the place to specify, what you 
want.

Media Capture and Streams
http://dev.w3.org/2011/webrtc/editor/getusermedia.html
This document specifies how the script can get access to local media 
input devices. It's also the place to read about how you can control 
these devices (look for constraints).

WebRTC 1.0: Real-time Communication Between Browsers
http://dev.w3.org/2011/webrtc/editor/webrtc.html
This document specifies the API which you use to send and receive 
streams from other browsers (or misc WebRTC peers).

/Adam
Received on Monday, 8 July 2013 08:06:48 UTC

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