W3C home > Mailing lists > Public > public-media-capture@w3.org > December 2011

Re: use cases not covered by media capture under DAP

From: Dave Raggett <dsr@w3.org>
Date: Thu, 01 Dec 2011 09:37:17 +0000
Message-ID: <4ED74ACD.3070102@w3.org>
To: Travis Leithead <travis.leithead@microsoft.com>
CC: Randell Jesup <randell-ietf@jesup.org>, "public-media-capture@w3.org" <public-media-capture@w3.org>
On 30/11/11 19:57, Travis Leithead wrote:
>> -----Original Message-----
>> From: Randell Jesup [mailto:randell-ietf@jesup.org]
>> Sent: Wednesday, November 30, 2011 11:52 AM
>> To: public-media-capture@w3.org
>> Subject: Re: use cases not covered by media capture under DAP
>> On 11/30/2011 2:21 PM, Travis Leithead wrote:
>>>> -----Original Message-----
>>>> From: brian.leroux@gmail.com [mailto:brian.leroux@gmail.com] On Behalf
>> Of
>>>> Brian LeRoux
>>>> Perhaps these real world cases can be of use.
>>>> In particular things we see all the time:
>>>> - image source (many camera sensors common now, select from photo
>>>> lib/gallary VERY common)
>>> Can you clarify this? Are you saying that the camera loads an image from
>>> the local file system? For what purpose?
>> Sending a video or image instead of current live camera output.  I
>> believe the example shown by Anant at TPAC covered this ability (via a
>> 'Browse' button I guess - I wasn't there).
> Ah, that makes sense. I can imagine a scenario where I'm sending my local media stream out via a PeerConnection in a live-chat, and I want to flip my local stream over to a screenshot/picture. I may want to be able to push that image "stream" up through the connection for some time interval before switching back.
> Of course, I could always just send the file too through other mechanisms :)

Further motivation comes from the use of a "mute" button for video 
conferencing where you want to send a static image when the video and 
sound are muted, e.g. because you need to talk to some one locally in 
private, and don't a risk of lip reading etc.  For this scenario, we 
don't require video conferencing, merely the need to support privacy at 
certain times in the capture process.

Dave Raggett<dsr@w3.org>  http://www.w3.org/People/Raggett
Received on Thursday, 1 December 2011 09:37:55 UTC

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