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977.txt
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977.txt
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[32] [DFN[[CODE(HTMLe)@en[[[track]]]]]] [[要素]]は、
[[媒体要素]]が使用する[[テキストトラック]]を指定するものです。
* 文脈
[34] [[媒体要素]] ([CODE(HTMLe)@en[[[video]]]] [[要素]]や
[CODE(HTMLe)@en[[[audio]]]] [[要素]]) の[[子供]]として使うことができます。
* 歴史
[33] 2010年に [[WebSRT]] と共に [[HTML Standard]] に追加されました。
[1] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-05-04 11:09:28 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5066&to=5067>
[2] [CITE@en[Web Applications 1.0 r5721 WebSRT fixes: added <track default> to make it possible to enable a text track by default; dropped <track charset>; dropped the voice identifier in favour of inline <v> annotations in WebSRT; dropped compatibility with legacy SRT; added a magic signature to WebSRT; added some forward-compatibility features to WebSRT for future expansion; simplified WebSRT timestamp syntax; added WebSRT <c.foo.bar> syntax and support for classes in WebSRT; added '>' escape support; tightened up WebSRT timestamp parsing; added ::cue() which takes a selector; dropped ::cue-part; added :past/:future; added some explanatory material and fixed some typos.]]
( ([TIME[2010-12-25 15:28:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=5720&to=5721>
[3] [CITE@en[Web Applications 1.0 r5945 ]]
( ([TIME[2011-03-14 19:19:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=5944&to=5945>
[4] [CITE@en[Web Applications 1.0 r5960 ]]
( ([TIME[2011-03-21 12:05:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=5959&to=5960>
[5] [CITE['''['''whatwg''']''' Timed tracks: feedback compendium]]
([TIME[2010-09-10 12:39:40 +09:00]] 版)
<http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2010-September/028476.html>
[6] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-05-04 17:16:02 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5070&to=5071>
[7] [CITE@en[Web Applications 1.0 r7326 <track> loading algorithm updates (part 1)]]
( ([TIME[2012-09-08 06:52:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=7325&to=7326>
[8] [CITE@en[Web Applications 1.0 r7327 Reform the processing model around loading of text tracks to solve a number of problems: what happens when there's no media element parent, how to make sure we pick the right text track when there's a user preference, and some race conditions]]
( ([TIME[2012-09-12 06:59:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=7326&to=7327>
[9] [CITE@en[Web Applications 1.0 r7328 Make text track cues more forgiving: drop the concept of cues being 'associated' with something, and make .snapToLines and .line allow invalid values and just have those be ignored in the rendering.]]
( ([TIME[2012-09-12 07:49:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=7327&to=7328>
[10] [CITE[''''''[''''''whatwg'''''']'''''' Tracks and cues]]
( ([TIME[2012-10-19 08:08:24 +09:00]] 版))
<http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2012-October/037644.html>
[11] [CITE@en[Web Applications 1.0 r7528 Make the <track default> element restrictions make more sense]]
( ([TIME[2012-11-23 16:46:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=7527&to=7528>
[12] [CITE[629350 – Implement the track element]]
( ([TIME[2013-03-02 13:18:31 +09:00]] 版))
<https://bugzilla.mozilla.org/show_bug.cgi?id=629350>
[13] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-07-03 09:17:18 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5131&to=5132>
[14] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-07-13 22:34:41 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5150&to=5151>
[15] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-05-05 19:13:32 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5074&to=5075>
[16] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-06-26 11:33:35 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5110&to=5111>
[17] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-07-01 07:46:49 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5123&to=5124>
[18] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-05-12 22:29:32 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5095&to=5096>
[19] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-07-14 07:53:08 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5153&to=5154>
[20] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-07-08 21:49:36 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5132&to=5133>
[21] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-07-09 08:42:50 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5138&to=5139>
[22] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-07-09 08:42:37 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5137&to=5138>
[23] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-07-13 22:36:29 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5151&to=5152>
[24] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-05-11 21:12:08 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5091&to=5092>
[25] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-05-18 22:15:33 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5096&to=5097>
[26] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-07-09 08:43:57 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5142&to=5143>
[27] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-05-05 19:14:23 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5076&to=5077>
[28] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-06-25 08:01:43 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5109&to=5110>
[29] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-07-13 22:36:46 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5152&to=5153>
[30] [CITE@en[Sourcing In-band Media Resource Tracks from Media Containers into HTML]]
( ([TIME[2014-05-06 03:49:03 +09:00]] 版))
<http://rawgit.com/silviapfeiffer/HTMLSourcingInbandTracks/master/index.html>
[31] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-05-05 07:33:28 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5071&to=5072>
[35] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-05-05 19:12:41 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5072&to=5073>
[36] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-05-05 19:13:11 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5073&to=5074>
[37] [CITE@en[Integrate Fetch into HTML · whatwg/html@7c5555a]]
([TIME[2015-09-18 19:12:47 +09:00]] 版)
<https://github.com/whatwg/html/commit/7c5555a16f2920c02244c10756bb2f1a11e87a22>
[38] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-05-05 19:13:49 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5075&to=5076>
[39] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-05-05 19:14:57 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5077&to=5078>
[40] [CITE@en[URLs are parsed and produce records · whatwg/html@30bc255]]
([TIME[2016-02-14 23:02:28 +09:00]] 版)
<https://github.com/whatwg/html/commit/30bc2557105ad62881ec9670f253febbc9761b44>
[41] [CITE@en[18029 – <track> Live captioning]]
([TIME[2016-03-18 13:49:00 +09:00]] 版)
<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18029>
[42] [CITE@en[23414 – <track> Live captioning - maybe need a way to indicate that a <track>'s data is streaming-aware]]
([TIME[2016-03-18 13:49:30 +09:00]] 版)
<https://www.w3.org/Bugs/Public/show_bug.cgi?id=23414>
[43] [CITE@en[Split up media into video, audio and track]]
([[yoavweiss]]著, [TIME[2016-12-17 00:06:19 +09:00]])
<https://github.com/whatwg/fetch/commit/ba175cf1100045da83ed0d7768629653aa979c20>