Nickname:
Title:
State: RAISED OPEN PENDINGREVIEW CLOSED POSTPONED
Product: None alt techniques authoring guide canvas 2d context Encrypted Media Extensions HTML 5 spec HTML 5: The Markup Language HTML Principles/Requirements HTML WG website HTML+RDFa HTML5 differences from HTML4 HTML5 Spec - PR Blockers Media Source Extensions Microdata Polyglot pre-LC1 alt techniques pre-LC1 authoring guide pre-LC1 HTML 5 spec pre-LC1 HTML+RDFa testsuite W3C publications
Raised By: Glenn Adams Adrian Bateman Michael Cooper Erika Doyle Navara Steve Faulkner James Graham Ian Hickson Lachlan Hunt Kris Krueger Philippe Le Hégaret Larry Masinter Matthew May Shawn Medero Ben Millard Jay Munro Joshue O Connor Theresa O'Connor Frank Olivier Julian Reschke Gregory Rosmaita Sam Ruby Mark Sadecki Janina Sajka Doug Schepers David Singer Henri Sivonen Michael[tm] Smith Manu Sporny Maciej Stachowiak Everett Zufelt Steve Faulkner
Description: bug raised by everett zufelt http://www.w3.org/Bugs/Public/show_bug.cgi?id=10642 Issue: The HTML5 specification does not currently require, or make available a method to provide, an alternative text description for the poster attribute of the video element. Authors are able to specify a frame of video, or an image external to the video, to serve as a "poster". User agents can show this image while no video is available. When placing an image in a document using the img element, an alternative text replacement, using the alt attribute, is required, with the exception of specific use-cases. It does not appear that the usage of the poster attribute of the video element fits into any of the use-cases for omitting an alternative description with an img element, and therefore an alternate description should be required when authors explicitly set the poster attribute for a video element. Proposal: Move poster from being an attribute of the video element to being a descendant with at least a src and alt attribute. For example: <video ...> <poster src=" URI " alt="Alternative description of poster image." /> </video> References: http://dev.w3.org/html5/spec/video.html#attr-video-poster 4.8.6 The video element The poster attribute gives the address of an image file that the user agent can show while no video data is available. http://dev.w3.org/html5/spec/embedded-content-1.html#alt 4.8.1.1 Requirements for providing text to act as an alternative for images 4.8.1.1.1 General guidelines Except where otherwise specified, the alt attribute must be specified and its value must not be empty; the value must be an appropriate replacement for the image. The specific requirements for the alt attribute depend on what the image is intended to represent, as described in the following sections. HTML5-SPEC-SECTIONS [video]
Add notes (no markup allowed, URIs get automatically hyperlinked):
Working Group Decision: http://lists.w3.org/Archives/Public/public-html/2011Mar/0690.html
POSTPONED: http://lists.w3.org/Archives/Public/public-html/2012Feb/0486.html