- From: <janina@rednote.net>
- Date: Fri, 11 Dec 2015 14:04:48 -0500
- To: HTML Accessibility Task Force <public-html-a11y@w3.org>
- Cc: W3C WAI Protocols & Formats <public-pfwg@w3.org>
- Message-ID: <20151211190448.GL1851@opera.rednote.net>
Colleagues: Resending (with apologies) to correct editorial issues flagged by Charles and Katie. If you've already submitted your opinion on this CfC, you needn't resend. Voting responses previously received WILL be counted. However, if you responded to the effort to re-argue longdesc in this CfC, but did not directly indicate whether you agree, or disagree with this CfC, your response cannot be counted because it requires a judgement call. Therefore, please be clear on whether you support, or do not support this CfC. Comments are OK, but specific responses are needed in order to judge whether this CfC does, or does not represent consensus. It's clear it will not be a unanimous consensus, should we achieve consensus. ***What This is a Call for Consensus (CfC) to the Accessible Platform Architectures (APA) Working Group (still functioning as the Protocols and Formats Working Group), and to the HTML-A11Y Task Force to test whether we have group consensus on the following comments on the MSE Candidate Recommendation published at: http://www.w3.org/TR/2015/CR-media-source-20151112/ ***Background Information The comments proposed below are the result of several conversations including: APA's Action-1742: http://lists.w3.org/Archives/Public/public-pfwg/2015Nov/0281.html The APA/PF regular teleconference meeting of 9 December: http://www.w3.org/2015/12/09-pf-minutes.html#item04 The HTML-A11Y Task Force regular teleconference meeting of 10 December: http://www.w3.org/2015/12/10-html-a11y-minutes.html#item03 ***Proposed Comments The Accessible Platform Architectures (APA) Working Group and the HTML-A11Y Task Force offer the following accessibility related comments on the MSE Candidate Recommendation (URI above): 1.) The diagram in this document should have a longdesc. If possible, the diagram itself should also be created using accessible SVG markup. We offer our assistance on this point. 2.) We would request greater use of prose to describe what the API is doing. This is needed both to help the reader understand what is being specified, but also to test whether the proposed API actually meets its intended purpose. 3.) We believe the MSE is not the appropriate specification to show how multiple media objects, such as the primary video plus a sign-language translation video plus captions plus described video are unencrypted (EME) and synchronized, even when each comes from a different server. However, we believe the W3C needs an high-level overview of how our various specifications fit together to deliver the total user experience defined by HTML and by the Media Accessibility User Requirements (MAUR) note[1]. We request your assistance in creating this high-level overview document, and in using alternative media examples where appropriate across W3C media specifications in ourder to illustrate for authors and user agent developers how W3C specifications work together to meet the widest possible assortment of user needs. ***ACTION TO TAKE According to agreed Consensus Procedures, this CfC is now open for objection, comment, as well as statements of support via email. Silence will be interpreted as support, though messages of support are certainly welcome. If you object to this proposed action, or have comments concerning this proposal, please respond by replying on list to this message no later than 23:59 (Midnight) Boston Time, Thursday 17 December. Janina [1] http://www.w3.org/TR/media-accessibility-reqs/ -- Janina Sajka, Phone: +1.443.300.2200 sip:janina@asterisk.rednote.net Email: janina@rednote.net Linux Foundation Fellow Executive Chair, Accessibility Workgroup: http://a11y.org The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI) Chair, Protocols & Formats http://www.w3.org/wai/pf
Attachments
- text/plain attachment: alt_cfc
Received on Friday, 11 December 2015 19:05:27 UTC