W3C home > Mailing lists > Public > w3c-wai-ua@w3.org > October to December 1998

Re: SMIL: Authoring question

From: Philipp Hoschka <Philipp.Hoschka@sophia.inria.fr>
Date: Wed, 07 Oct 1998 23:48:44 +0200
Message-Id: <199810072148.XAA01242@www45.inria.fr>
To: Jon Gunderson <jongund@staff.uiuc.edu>
cc: w3c-wai-ua@w3.org

On 07/10/1998, Jon Gunderson <jongund@staff.uiuc.edu>  wrote:
>With the current SMIL standard would the author need to create two versions
>of their document, one with captions and the other without; or would the
>captioning be an add on to the original document so the user just turns it
>on or off?

assuming that you talk about text captions here: one
version is enough

the following example from the SMIL REC shows how this works,
see
http://www.w3.org/TR/REC-smil/#test

====

In the following example, captions are shown only if the user wants captions on. 

...
<seq>
  <par>
    <audio      src="audio.rm"/>
    <video      src="video.rm"/>
    <textstream src="stockticker.rtx"/>
    <textstream src="closed-caps.rtx" system-captions="on"/>
  </par>
</seq>
...

====

The second textstream object is only shown if the "system-captions"
test attribute evaluates to "true", which is the case when the
user has requested captioning

Lloyd proposed a similar test attribute to switch audio descriptions
on and off (see my previous message)
Received on Wednesday, 7 October 1998 17:49:04 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Tuesday, 27 October 2009 06:48:38 GMT