- From: <bugzilla@jessica.w3.org>
- Date: Sat, 20 Aug 2011 03:36:21 +0000
- To: public-html-bugzilla@w3.org
http://www.w3.org/Bugs/Public/show_bug.cgi?id=13357 --- Comment #3 from Silvia Pfeiffer <silviapfeiffer1@gmail.com> 2011-08-20 03:36:20 UTC --- (In reply to comment #2) > How is this kind distinguished in existing video formats? > > That is, what types would this map to in H.264, WebM, or Ogg files? In Ogg such a track would just be under the role "main" because such mixed content is not the best way to publish content - it's better to keep such content separate. Once mixed, it's basically impossible to get back to the individual parts and e.g. remove the audio description again. As such it is the new "main". It has also not been a common case to deal with yet. This doesn't quite match with the user experience though and where such content is delivered, it has to be made clear to the user that the main content has such other information in it. In the past I have seen it even mentioned in the title displayed above the video and explicitly described in the description to point out to the user what they have to expect from the content. In a situation where a program has to pick an adequate piece of content, e.g. content that actually has an audio description, just using kind=main is indeed insufficient. I'm prepared to suggest to Ogg to add the use of "+" to the roles attribute to enable use cases such as role="audio/main+audio/audiodesc" or role="video/main+video/sign". -- Configure bugmail: http://www.w3.org/Bugs/Public/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the QA contact for the bug.
Received on Saturday, 20 August 2011 03:36:26 UTC