- From: Bob Lund <B.Lund@CableLabs.com>
- Date: Thu, 25 Apr 2013 18:35:03 +0000
- To: Simon Pieters <simonp@opera.com>, Silvia Pfeiffer <silviapfeiffer1@gmail.com>, Glenn Adams <glenn@skynav.com>
- CC: public-html <public-html@w3.org>, "Jerry Smith, (WINDOWS)" <jdsmith@microsoft.com>, "Mark Vickers @ Comcast" <mark_vickers@cable.comcast.com>
On 4/25/13 11:57 AM, "Simon Pieters" <simonp@opera.com> wrote: >On Thu, 25 Apr 2013 17:10:10 +0200, Bob Lund <B.Lund@cablelabs.com> wrote: > >> There is getCueAsSource API in >> >>http://www.w3.org/TR/2011/WD-html5-20110525/the-iframe-element.html#timed >>-text-tracks; >> my mistake on the exact method name. > >Please don't read /TR/, let alone a copy from 2011... Well, in 2011 that was all that was there :). The implied point is that we've been working on Text Track implementations since then. The perception that WebVTT is the only thing being implemented is incorrect. > >> The TextTrackCue text attribute as defined here >> >>http://www.w3.org/TR/2012/CR-html5-20121217/embedded-content-0.html#text- >>track-api >> is fine. > >Again, /TR/ is obsolete. > >See >http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-elem >ent.html#texttrackcue >http://dev.w3.org/html5/webvtt/#dfn-webvttcue > >> There is a definition for in-band MPEG-2 TS text tracks here >> http://www.cablelabs.com/specifications/CL-SP-HTML5-MAP-I02-120510.pdf >> that is normatively referenced by the DLNA HTML5 Remote UI spec. This >> defines use of the TextTrackCue text and getCueAsHTML attributes. > >Thanks. This seems to make use of .text, but not so much of >getCueAsHTML(). That is not correct. > The only thing that can return a non-null value for the >latter is 5.2 Closed Captioning, Yes, this returns a non-null value. The comment had been made earlier that getCueAsHTML is only needed by WebVTT. I am offering a case for MPEG-2 TS. > which says > >[[ >getCueAsHTML() returns a DocumentFragment with an HTML representation of >the TextTrackCue text attribute as defined in [HTML5], if the UA knows >how >to create such a representation. Otherwise, getCueAsHTML returns null. >] > >-- >Simon Pieters >Opera Software
Received on Thursday, 25 April 2013 18:36:16 UTC