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Re: SMIL Validation (was RE: Captions for audio clips)

From: Charles McCathieNevile <charles@w3.org>
Date: Mon, 20 Dec 1999 12:34:19 -0500 (EST)
To: "webmaster@dors.sailorsite.net" <webmaster@dors.sailorsite.net>
cc: "'Web Accessibility Initiative'" <w3c-wai-ig@w3.org>
Message-ID: <Pine.LNX.4.20.9912201232350.18002-100000@tux.w3.org>
Bruce,

you should (as I recall the spec - this is really a SMIL question) have a
type attribute in the video element. And you may find that isn't enough for
Realplayer either - i believe it uses another scheme for addressig streaming
documents, although I don't really know.

Charles McCN

On Mon, 20 Dec 1999, Bruce Bailey wrote:

  The W3C validator DOES validate SMIL ascii/text files.  I am anxious about 
  how good a job it is doing.  I guess it should be great, since SMIL is a 
  W3C spec.  I guess I don't quite understand why the CSS validator is 
  separate from the main validation service, but SMIL is not.  Does it really 
  test against the SMIL subset DTD specifications, or merely make sure that a 
  file follows "general" XML specifications?  I was most disappointed to 
  discover that the SMIL files from NCAM for the publicly available "Car" and 
  "Elevator" do not validate as they are written.
  
  My most immediately pressing SMIL problem is this:
  Can a .smi (ascii/text) file reference (binary/media) files that are 
  located on a different server?
  
  I have tried using a BASE REF statement in the HEAD sections which seems to 
  be ignored.
  I have tried an explicit SRC statement like:
  	<video src="http://38.201.92.250/ramgen/channels/able/car/carsilent.rm" 
  region="videoregion"/>
  But that just gets me an error message, "RealPlayer cannot play this type 
  of document".
  Removing the http:// (and a few other permutations I tried) results in 
  other equally non-helpful error messages.
  
  This question may belong in another group, but I need to know so I can 
  experiment with live captions.
  
  Bruce Bailey
  
  
  On Monday, December 20, 1999 2:41 AM, Charles McCathieNevile 
  [SMTP:charles@w3.org] wrote:
  > SMIL doesn't provide for timing inside media objects - you can do that by
  > breaking them into pieces and using explicit timing (that's what would be
  > good to do). The W3C validator should now validate SMIL documents (well, 
  XML
  > in general in theory, and SMIL is XML).
  

--
Charles McCathieNevile    mailto:charles@w3.org    phone: +61 409 134 136
W3C Web Accessibility Initiative                    http://www.w3.org/WAI
21 Mitchell Street, Footscray, VIC 3011,  Australia (I've moved!)
Received on Monday, 20 December 1999 12:34:25 GMT

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