- From: Bob Lund <B.Lund@CableLabs.com>
- Date: Mon, 10 Mar 2014 21:48:58 +0000
- To: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
- CC: "public-inbandtracks@w3.org" <public-inbandtracks@w3.org>
On 3/9/14, 11:28 PM, "Silvia Pfeiffer" <silviapfeiffer1@gmail.com> wrote: >Hi Bob, > >On Wed, Feb 12, 2014 at 3:54 AM, Bob Lund <B.Lund@cablelabs.com> wrote: >> Hi CG, >> >> The Wiki table for video/audio track [1] defines how to determine >>'kind' for >> MPEG-2 TS video and audio streams. We can create similar tables for the >> other containers of interest: MP4 ISOBMFF, DASH, WebM and Ogg. The HTML >>CR >> has a table describing what the UA should return for video.kind and >> audio.kind [2]. So it would seem that we should add the examples for >>[1] to >> [2]. > >Agreed. > > >> [1] also defines how to set the language and id attributes for MPEG-2 TS >> (and other formats in the future). Should this information also be >>added to >> [2], perhaps in a similar table to what exists? > >Yes, I think the HTML spec should have similar tables as for the @kind >attribute also for @id, @language and @label for all the media formats >that UAs support. Note that some of that information is already >available on our wiki page >https://www.w3.org/community/inbandtracks/wiki/Main_Page but needs to >be formulated as a table (as you have done for "text kind table"). > > >> The Wiki has a table for text tracks [3] and text track cue [4] >>creation. >> This could be added to the HTML5 spec in the text track section. > >Yes, I think those are good ideas. > >> What do you think about adding this information to the HTML >>recommendation? >> The alternative would be another recommendation that is referenced by >>the >> HTML rec. Thoughts? > >No, the HTML spec is the right place for it. > >I would recommend registering a bug for every section that needs >updating and every attribute. > >So, a bug each for: > >https://www.w3.org/community/inbandtracks/wiki/Main_Page#Audio_and_video_k >ind_table > >https://www.w3.org/community/inbandtracks/wiki/Main_Page#Text_kind_table >(this needs updating with information from other formats) Išve update with what I know for ISOBMFF. Can someone either supply me with information for WebM and Ogg or update the table in the wiki with same information? Thanks, Bob > >https://www.w3.org/community/inbandtracks/wiki/Main_Page#Guidelines_for_cr >eating_metadata_text_track_cues >(here, I would add a change to step 2 of the algorithm, too, to add a >table to explain how id, language and kind are determined) > >If you want, I can help out with extending these tables before you >submit the bug. > >Cheers, >Silvia. > > >> Thanks, >> Bob >> >> [1] >> >>https://www.w3.org/community/inbandtracks/wiki/Main_Page#Audio_and_Video_ >>Track_Creation >> [2] >> >>http://www.w3.org/TR/html5/embedded-content-0.html#audiotracklist-and-vid >>eotracklist-objects >> [3] >> >>https://www.w3.org/community/inbandtracks/wiki/Main_Page#TextTrack_Creati >>on >> [4] >> >>https://www.w3.org/community/inbandtracks/wiki/Main_Page#Text_Track_Cue_C >>reation >>
Received on Monday, 10 March 2014 21:49:21 UTC