- From: Bob Lund <B.Lund@CableLabs.com>
- Date: Wed, 12 Mar 2014 16:58:56 +0000
- To: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
- CC: "public-inbandtracks@w3.org" <public-inbandtracks@w3.org>
On 3/12/14, 5:24 AM, "Silvia Pfeiffer" <silviapfeiffer1@gmail.com> wrote: >On Tue, Mar 11, 2014 at 8:48 AM, Bob Lund <B.Lund@cablelabs.com> wrote: >> >> >> 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) >> >> I©öve 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? > >I think there is still the part about label and language missing for >ISOBMFF - and some if not all of it is available below: >https://www.w3.org/community/inbandtracks/wiki/Main_Page#ISOBMFF_2 . I >don't know if that is correct, so I didn't touch it. I¡¯ver completed this for MPEG-2 TS, ISOBMFF and DASH in https://www.w3.org/community/inbandtracks/wiki/Main_Page#Audio.2FVideo.2FTe xt_Track_Creation. This table https://www.w3.org/community/inbandtracks/wiki/Main_Page#Guidelines_for_cre ating_metadata_text_track_cues is only filled out for MPEG-2 TS. Do we need equivalent information for the other media container formats? > >However, I've added the missing info to the WebM and Ogg sections, so >those are now complete, too. > >Cheers, >Silvia.
Received on Wednesday, 12 March 2014 16:59:23 UTC