- From: <bugzilla@jessica.w3.org>
- Date: Mon, 12 Dec 2011 16:07:24 +0000
- To: public-html-bugzilla@w3.org
https://www.w3.org/Bugs/Public/show_bug.cgi?id=13359 --- Comment #30 from Bob Lund <b.lund@cablelabs.com> 2011-12-12 16:07:18 UTC --- (In reply to comment #29) > (In reply to comment #27) > > > > Ogg[1] - Ogg skeleton header fields: content_type, role, name > > content_type == MIME type in Ogg; is that really what you're after? If the script needs MIME type to identify the format of a metadata track, then yes. > role is already mapped to the @role attribute; what more do you expect from it? I don't see a role attribute in either the HTMLTrackElement of TextTrack interface. > name is already mapped to the @kind attribute; what more do you expect from it? Definition of @kind enumerates a set of kinds. There is only a single metadata kind. The definition of name in http://wiki.xiph.org/SkeletonHeaders#Name states it is a free text string. Inclusion of name could be used to discriminate the specific type of metadata. > > > > MPEG-2 TS[2] - Program map table entry fields: stream_type, any descriptors > > > > DASH[3] - MPD Role element, e.g. <Role schemeIdUri= > > Looks lie your post got cut off. > > You've missed WebM. Thanks - WebM, MPEG-4 and DASH got cut off. Here is the complete list again. Ogg - Ogg skeleton header fields: content_type, role, name [1] MPEG-2 TS - Program map table entry fields: stream_type field in the PMT, any descriptors [2] DASH - MPD Role element, e.g. <Role schemeIdUri=”urn:mpeg:DASH:role:2011” value=”subtitle”/> [3]. NOTE: DASH has defined a scheme with a set of values. It is expected that other organizations will define additional schemes as needed. WebM - TrackType and CodecID [4]. ISOBMFF (MPEG-4) - Contents of the handler reference box (hdlr) in each track : attributes handler_type and name [5]. NOTE: MPEG only defines three types of track handlers: video, audio and hint. Other organizations can extend the MPEG handler reference box to define new types of tracks. [1] http://wiki.xiph.org/SkeletonHeaders [2] ITU H.222.0 (5/2006) Table 2-33 [3] http://developer.longtailvideo.com/trac/export/1601/branches/adaptive/doc/specs/dash.pdf [4] http://matroska.org/technical/specs/index.html [5] ISO/IEC 14496-12 Bob -- Configure bugmail: https://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 Monday, 12 December 2011 16:09:32 UTC