- From: David Singer <singer@apple.com>
- Date: Fri, 1 May 2009 17:07:06 -0700
- To: "Bailer, Werner" <werner.bailer@joanneum.at>, "public-media-annotation@w3.org" <public-media-annotation@w3.org>
At 16:53 +0200 27/04/09, Bailer, Werner wrote: >- There is no property to describe the number of tracks (and maybe >type of tracks), e.g. which audio channels in a surround setup, >several language channels, audio commentary, etc., in future >probably also several video channels. The MFWG has defined "track >fragments" as a specific type of fragment identifier, so the range >of options for this kind of fragments for a content must be known. > >- sample type/depth could be useful at least in a limited way, e.g. >to express black/white or color, in some application (e.g. medical >imaging) a more precise specification could be helpful > >- file size/bit rate could be useful for media to be downloaded/streamed > >- I know we excluded temporal sampling rate, but I'm not sure why it >should be excluded when spatial sampling rate is included I think we need to work on 'annotative' queries and 'format' queries separately, and yes, some of these are relevant. I remain concerned that we need some annotative material for accessibility (e.g. link to transcript, what 'axes' the media can be adapted -- such as closed captions, audio description of video, video contrast, etc.) -- David Singer Multimedia Standards, Apple Inc.
Received on Saturday, 2 May 2009 00:09:34 UTC