W3C home > Mailing lists > Public > public-media-annotation@w3.org > May 2009

RE: F2F 3 and call for comments

From: David Singer <singer@apple.com>
Date: Fri, 1 May 2009 17:07:06 -0700
Message-Id: <p06240885c6213ea0bcfc@[]>
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

This archive was generated by hypermail 2.3.1 : Tuesday, 6 January 2015 21:17:34 UTC