- From: <bugzilla@jessica.w3.org>
- Date: Wed, 03 Aug 2011 19:33:38 +0000
- To: public-html@w3.org
http://www.w3.org/Bugs/Public/show_bug.cgi?id=13622 Summary: The cue processing algorithm should be able to activate zero-duration cues Product: HTML WG Version: unspecified Platform: All OS/Version: All Status: NEW Keywords: a11y, a11ytf, media Severity: normal Priority: P2 Component: LC1 HTML5 spec (editor: Ian Hickson) AssignedTo: ian@hixie.ch ReportedBy: mstm@jp.ibm.com QAContact: public-html-bugzilla@w3.org CC: mike@w3.org, public-html-wg-issue-tracking@w3.org, public-html@w3.org, public-html-a11y@w3.org Section affected: http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#playing-the-media-resource In the current cue processing algorithm, a cue whose start time is equal to the end time never gets into "current cues", which is defined as the list of cues "whose start times are less than or equal to the current playback position and whose end times are greater than the current playback position". However, certain kinds of cues (e.g., extended video descriptions which pause the playback while presenting a description) require such a zero-duration cue as the media timeline is defined based on the timeline of the original media resource. The algorithm should activate even a zero-duration cue at the specified time. Once the cue is activated and the corresponding event is fired, the system or a script will be able to handle it (e.g., pause/resume the playback in the case of extended descriptions). A use case of extended descriptions is found at: http://media.w3.org/2010/08/ -- Configure bugmail: http://www.w3.org/Bugs/Public/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
Received on Wednesday, 3 August 2011 19:33:42 UTC