- From: poot <cvsmail@w3.org>
- Date: 2011年8月11日 18:24:59 -0400
- To: public-html-diffs@w3.org
- Message-Id: <E1QrdgQ-0001SG-Ss@jay.w3.org>
hixie: Enumerate the many ways you can make video accessible now. (whatwg r6426) http://dev.w3.org/cvsweb/html5/spec/Overview.html?r1=1.5130&r2=1.5131&f=h http://html5.org/tools/web-apps-tracker?from=6425&to=6426 =================================================================== RCS file: /sources/public/html5/spec/Overview.html,v retrieving revision 1.5130 retrieving revision 1.5131 diff -u -d -r1.5130 -r1.5131 --- Overview.html 11 Aug 2011 22:02:32 -0000 1.5130 +++ Overview.html 11 Aug 2011 22:24:39 -0000 1.5131 @@ -21384,10 +21384,21 @@ them of how to access the video contents.<p class="note">In particular, this content is not intended to address accessibility concerns. To make video content accessible to the blind, deaf, and those with other physical or cognitive - disabilities, authors are expected to provide alternative media - streams and/or to embed accessibility aids (such as caption or - subtitle tracks, audio description tracks, or sign-language - overlays) into their media streams.<p>The <code><a href="#the-video-element">video</a></code> element is a <a href="#media-element">media element</a> + disabilities, a variety of features are available. Captions can be + provided, either embedded in the video stream or as external files + using the <code><a href="#the-track-element">track</a></code> element. Sign-language tracks can be + provided, again either embedded in the video stream or by + synchronizing multiple <code><a href="#the-video-element">video</a></code> elements using the <code title="attr-media-mediagroup"><a href="#attr-media-mediagroup">mediagroup</a></code> attribute or a + <code><a href="#mediacontroller">MediaController</a></code> object. Audio descriptions can be + provided, either as a separate track embedded in the video stream, + or a separate audio track in an <code><a href="#the-audio-element">audio</a></code> element <a href="#slaved-media-elements" title="slaved media elements">slaved</a> to the same controller + as the <code><a href="#the-video-element">video</a></code> element(s), or in text form using a + <span>WebVTT file</span> referenced using the <code><a href="#the-track-element">track</a></code> + element and synthesized into speech by the user agent. WebVTT can + also be used to provide chapter titles. For users who would rather + not use a media element at all, transcripts or other textual + alternatives can be provided by simply linking to them in the prose + near the <code><a href="#the-video-element">video</a></code> element.<p>The <code><a href="#the-video-element">video</a></code> element is a <a href="#media-element">media element</a> whose <a href="#media-data">media data</a> is ostensibly video data, possibly with associated audio data.<p>The <code title="attr-media-src"><a href="#attr-media-src">src</a></code>, <code title="attr-media-preload"><a href="#attr-media-preload">preload</a></code>, <code title="attr-media-autoplay"><a href="#attr-media-autoplay">autoplay</a></code>, <code title="attr-media-mediagroup"><a href="#attr-media-mediagroup">mediagroup</a></code>, @@ -21653,9 +21664,14 @@ them of how to access the audio contents.<p class="note">In particular, this content is not intended to address accessibility concerns. To make audio content accessible to the deaf or to those with other physical or cognitive disabilities, - authors are expected to provide alternative media streams and/or to - embed accessibility aids (such as transcriptions) into their media - streams.<p>The <code><a href="#the-audio-element">audio</a></code> element is a <a href="#media-element">media element</a> + a variety of features are available. If captions or a sign language + video are available, the <code><a href="#the-video-element">video</a></code> element can be used + instead of the <code><a href="#the-audio-element">audio</a></code> element to play the audio, + allowing users to enable the visual alternatives. Chapter titles can + be provided to aid navigation, using the <code><a href="#the-track-element">track</a></code> element + and a WebVTT file. And, naturally, transcripts or other textual + alternatives can be provided by simply linking to them in the prose + near the <code><a href="#the-audio-element">audio</a></code> element.<p>The <code><a href="#the-audio-element">audio</a></code> element is a <a href="#media-element">media element</a> whose <a href="#media-data">media data</a> is ostensibly audio data.<p>The <code title="attr-media-src"><a href="#attr-media-src">src</a></code>, <code title="attr-media-preload"><a href="#attr-media-preload">preload</a></code>, <code title="attr-media-autoplay"><a href="#attr-media-autoplay">autoplay</a></code>, <code title="attr-media-mediagroup"><a href="#attr-media-mediagroup">mediagroup</a></code>, <code title="attr-media-loop"><a href="#attr-media-loop">loop</a></code>,
Received on Thursday, 11 August 2011 22:25:00 UTC