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Re: HTML5 bugs reported by HbbTV for information for the Web and TV IG

From: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
Date: Mon, 28 Apr 2014 19:49:44 +1000
Message-ID: <CAHp8n2n1yCWRoo2rO-16LRDjC34Vg+nd9eFKKUiC_xX7ZVC2HQ@mail.gmail.com>
To: Giuseppe Pascale <giuseppep@opera.com>
Cc: public-web-and-tv <public-web-and-tv@w3.org>, Jon Piesing <Jon.Piesing@tpvision.com>
Hi all,

Just some quick feedback.

On Mon, Apr 28, 2014 at 6:35 PM, Giuseppe Pascale <giuseppep@opera.com> wrote:
> Forwarding on request from Jon.
> As discussed during our call people are welcome and encouraged to provide
> comments on these bugs in bugzilla
> https://www.w3.org/Bugs/Public/
> ---------- Forwarded message ----------
> From: Jon Piesing <Jon.Piesing@tpvision.com>
> Date: Wed, Apr 23, 2014 at 2:49 PM
> Subject: HTML5 bugs reported by HbbTV for information for the Web and TV IG
> To: Giuseppe Pascale <giuseppep@opera.com>, Daniel Davis <ddavis@w3.org>
> Dear Giuseppe, Daniel,
> In the Web and TV IG call last week, I agreed to provide a list of the HTML5
> bugs reported by HbbTV. Here it is including some commentary on the status.
> 24161 - <track> short duration cues fail to reach the application
> **************************************************************************
> (This was reported to WHATWG as
> https://www.w3.org/Bugs/Public/show_bug.cgi?id=24382).
> The proposed solution here is a work-around which doesn't actually solve the
> problem, particularly in the case of live TV where cues may be created a
> very short time before they are to be used.
> Please see comment 19 on the WHATWG issue for more information.

This is a really tricky issue to deal with - we had that problem ever
since a discussion around cue points from as long ago as 2007 (!), see
. I think we should avoid cue points if at all possible (see reasons
in the bug and in the years of discussion around HTML).

> 24859 Automatic Video and Audio Track Selection Based on User Preferences
> and Terminal Characteristics
> ******************************************************************************************************************************
> (This was passed to WHATWG as
> https://www.w3.org/Bugs/Public/show_bug.cgi?id=24895.)
> The solution referenced in the WHATWG issue is OK for HbbTV. We hope it can
> get brought back into the W3C HTML spec which is what we reference.

It has been applied to HTML5.1 and will be applied to HTML5 CR.

> 24860 When can user agents honor the user preferences for automatic text
> track selection
> *********************************************************************************************************
> The proposal from Silvia Pfeiffer at the end of comment #13 is OK for HbbTV.
> 24862 Disabling Subtitles Based on Users Changing Preferences in the UA
> ***************************************************************************************
> We agree that this is covered by #24860.
> 24863 Per-track metadata for video and audio tracks
> *************************************************************
> HbbTV owes a response on this issue.
> 25427 Video element playback position and live content
> *****************************************************************
> This is a brand new issue, just filed today.

Philip's reply should be addressed by the group.


> As I'm not on the Web and TV IG email list, can one of you please forward
> this. If you want to discuss these, I will need a reminder/invitation as I
> poll the archive of the Web and TV IG and may not pick up on agendas.
> Regards
> Jon Piesing
> Chair HbbTV Specification Working Group
Received on Monday, 28 April 2014 09:50:33 UTC

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