{"id":7421,"date":"2018-03-22T01:30:51","date_gmt":"2018-03-21T17:30:51","guid":{"rendered":"http:\/\/www.zhangxinxu.com\/wordpress\/?p=7421"},"modified":"2022-09-09T00:33:41","modified_gmt":"2022-09-08T16:33:41","slug":"html5-video-webvtt-subtitle","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2018\/03\/html5-video-webvtt-subtitle\/","title":{"rendered":"\u73a9\u8f6cHTML5 Video\u89c6\u9891WebVTT\u5b57\u5e55\u4f7f\u7528\u6837\u5f0f\u4e0e\u5236\u4f5c"},"content":{"rendered":"<p>by <a href=\"http:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=7421\">http:\/\/www.zhangxinxu.com\/wordpress\/?p=7421<\/a><br \/>\n\u672c\u6587\u53ef\u5168\u6587\u8f6c\u8f7d\uff0c\u4f46\u9700\u5f97\u5230\u539f\u4f5c\u8005\u4e66\u9762\u8bb8\u53ef\uff0c\u540c\u65f6\u4fdd\u7559\u539f\u4f5c\u8005\u548c\u51fa\u5904\uff0c\u6458\u8981\u5f15\u6d41\u5219\u968f\u610f\u3002<\/p>\n<h3>\u4e00\u3001HTML5 Video\u89c6\u9891\u4e0eWebVTT\u5b57\u5e55<\/h3>\n<p>HTML5 Video\u89c6\u9891\u652f\u6301\u652f\u6301\u5916\u6302\u5b57\u5e55\uff0c\u6587\u4ef6\u540e\u7f00\u540d\u662f<code>.vtt<\/code>\uff0c\u79f0\u4e3aWebVTT\u683c\u5f0f\uff0c\u4e13\u95e8\u7684web\u5b57\u5e55\u683c\u5f0f\u3002\u4f7f\u7528\u5f88\u7b80\u5355\uff0c\u7528\u4e00\u4e2a<code>&lt;track&gt;<\/code>\u5143\u7d20\u5373\u53ef\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>&lt;video id=\"video\"&gt;\r\n    &lt;source src=\"example.mp4\" type=\"video\/mp4\"&gt;\r\n    &lt;track src=\"example.vtt\" default&gt;\r\n&lt;\/video&gt;<\/pre>\n<p>\u53ea\u8981<code>src<\/code>\u5c5e\u6027\u5730\u5740OK\uff0c\u540c\u65f6\u6709<code>default<\/code>\u5c5e\u6027\uff0c\u5b57\u5e55\u5c31\u4f1a\u751f\u6548\u3002<\/p>\n<p>\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/study\/201803\/video-track-webvtt.html\" rel=\"noopener\" target=\"_blank\">HTML5 video\u89c6\u9891track\u52a0\u8f7dWebVtt\u5b57\u5e55demo<\/a><\/p>\n<p>Chrome\u6d4f\u89c8\u5668\u4e0b\u5c31\u4f1a\u663e\u793a\u7c7b\u4f3c\u4e0b\u56fe\u7684\u5b57\u5e55\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201803\/2018-03-21_230630.png\" width=\"188\" height=\"323\" alt=\"\u5b57\u5e55\u6548\u679c\u622a\u56fe\" class=\"alignnone\" \/><\/p>\n<p>\u5176\u4e2d\uff0c\u52a0\u8f7d\u7684<code>.vtt<\/code>\u6587\u4ef6\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n<pre>WEBVTT\r\n\r\n00:00:00.001 --&gt; 00:00:01.000\r\n\u8bf7\u628a\u4f60\u7684\u9505\r\n\r\n00:00:01.001 --&gt; 00:00:03.500\r\n\u5e26\u56de\u4f60\u7684\u867e\r\n\r\n00:00:03.501 --&gt; 00:00:07.000\r\n\u8bf7\u628a\u4f60\u7684\u5fae\u7b11\u7559\u4e0b\u2026\u2026\r\n\r\n00:00:07.501 --&gt; 00:00:10.000\r\n\u8bf7\u628a\u4f60\u7684\u9505\r\n\r\n00:00:10.001 --&gt; 00:00:12.000\r\n\u5e26\u56de\u4f60\u7684\u867e\r\n\r\n00:00:12.001 --&gt; 00:00:15.000\r\n\u8bf7\u628a\u4f60\u7684\u5fae\u7b11\u7559\u4e0b<\/pre>\n<p>\u5c31\u662f\u4e2a\u6587\u672c\u6587\u4ef6\uff0c\u4e14\u683c\u5f0f\u5f88\u7b80\u5355\uff0c\u4e00\u5f00\u59cb\u58f0\u660e\u4e0bWebVTT\uff0c\u7136\u540e\u4e0b\u9762\u5c31\u662f\u89c6\u9891\u65f6\u95f4\u8303\u56f4\uff0c\u4e0b\u4e00\u884c\u5c31\u662f\u5b57\u5e55\u5185\u5bb9\uff0c\u65f6\u95f4\u53ef\u4ee5\u7cbe\u786e\u5230\u6beb\u79d2\uff0c\u4f46\u901a\u5e380.5\u79d2\u8db3\u77e3\u3002<\/p>\n<p>\u5b9e\u9645\u4e0aWebVTT\u89c4\u8303\u53ef\u4ee5\u6709\u66f4\u591a\u89c4\u5219\uff0c\u5177\u4f53\u53ef\u4ee5\u53c2\u89c1<a href=\"https:\/\/w3c.github.io\/webvtt\/\" rel=\"noopener\" target=\"_blank\">\u5b98\u7f51\u6587\u6863<\/a>\u3002<\/p>\n<p><code>.vtt<\/code>\u6587\u4ef6\u7684MIME type\u662f<code>text\/vtt<\/code>\u3002\u5728Chrome\u548cFirefox\u6d4f\u89c8\u5668\u4e0b\uff0c<code>.vtt<\/code>\u5b57\u5e55\u662f\u53ef\u4ee5\u65e0\u969c\u788d\u52a0\u8f7d\u663e\u793a\u7684\uff0c\u4f46\u662f\u5bf9\u4e8eIE10+\u6d4f\u89c8\u5668\uff0c\u867d\u7136\u4e5f\u652f\u6301<code>.vtt<\/code>\u5b57\u5e55\uff0c\u4f46\u662f\uff0c\u5374\u9700\u8981\u5b9a\u4e49MIME type\uff0c\u5426\u5219\u4f1a\u65e0\u89c6WebVTT\u683c\u5f0f\u3002\u6bd4\u8f83\u7b80\u5355\u65b9\u5f0f\u5c31\u662f\u5728\u5b57\u5e55\u6240\u5728\u6587\u4ef6\u5939\u4e0b\u9762\u6dfb\u52a0\u4e2a<code>.htaccess<\/code>\u6587\u4ef6\uff0c\u91cc\u9762\u5199\u4e0a<code>AddType text\/vtt .vtt<\/code>\u3002<\/p>\n<p>\u901a\u5e38\u6211\u4eec\u4fdd\u5b58\u5728\u7535\u8111\u4e2d\u7684\u5916\u6302\u5b57\u5e55\u90fd\u4e0d\u662fvtt\u800c\u662f\uff0c\u5e38\u89c1\u7684\u5982srt\u683c\u5f0f\uff0c\u9700\u8981\u9700\u8981\u7528\u5728web\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5de5\u5177\u8f6c\u4e00\u4e0b\u5c31\u597d\u4e86\uff0c\u81ea\u5df1Node.js\u5199\u4e00\u4e2a\uff0c\u6216\u8005\u4f7f\u7528\u8fd9\u4e2a\u5728\u7ebf\u5c0f\u5de5\u5177\uff1a<a href=\"https:\/\/atelier.u-sub.net\/srt2vtt\/\" rel=\"noopener\" target=\"_blank\">Simple SubRip to WebVTT converter<\/a><\/p>\n<h3>\u4e8c\u3001HTML5 Video\u89c6\u9891\u4e0etrack\u5143\u7d20<\/h3>\n<p>\u5bf9\u4e8e<code>&lt;track&gt;<\/code>\u5143\u7d20\u5b8c\u6574\u7684\u5199\u6cd5\u5e94\u8be5\u662f\uff1a<\/p>\n<pre>&lt;track src=\"example.vtt\" kind=\"subtitles\" label=\"\u4e2d\u6587\u5b57\u5e55\" srclang=\"zh\" default&gt;<\/pre>\n<p>\u8fd9\u91cc\u51fa\u73b0\u4e86\u51e0\u4e2a\u5c5e\u6027\uff0c\u5206\u522b\u662f<code>kind<\/code>, <code>label<\/code>, <code>srclang<\/code>\u4ee5\u53ca<code>default<\/code>\u3002<\/p>\n<p>\u6839\u636e<a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/HTML\/Element\/track\" rel=\"noopener\" target=\"_blank\">MDN\u6587\u6863<\/a>\u4e0a\u7684\u89e3\u91ca\uff0c\u5176\u542b\u4e49\u5206\u522b\u5982\u4e0b\uff1a<\/p>\n<dl>\n<dt>kind<\/dt>\n<dd>\u7528\u6765\u8868\u660e\u6587\u5b57\u8f68\u8ff9\u662f\u5e72\u561b\u7528\u7684\u3002\u9ed8\u8ba4\u503c\u662f<code>subtitles<\/code>\uff0c\u4e5f\u5c31\u662f\u8bf4\u5982\u679c\u6ca1\u6709\u6dfb\u52a0<code>kind<\/code>\u5c5e\u6027\uff0c<code>kind<\/code>\u4f1a\u88ab\u8ba4\u4e3a\u662f<code>subtitles<\/code>\uff1b\u4f46\u662f\uff0c\u5982\u679c\u6709<code>kind<\/code>\u5c5e\u6027\u503c\uff0c\u4f46\u662f\u4e0d\u662f\u5408\u6cd5\u7684\uff0c\u5219\u4f1a\u88ab\u8ba4\u4e3a\u662f<code>metadata<\/code>\u3002\u5176\u4e2d\uff0c\u5408\u6cd5\u7684\u5c5e\u6027\u503c\u5305\u62ec\u4e0b\u9762\u8fd9\u4e9b\uff1a<\/p>\n<ul>\n<li>subtitles<br \/>\n\u5c31\u662f\u6211\u4eec\u5e73\u5e38\u770b\u7535\u5f71\u770b\u52a8\u6f2b\u65f6\u5019\u4e0b\u9762\u51fa\u73b0\u7684\u5b57\u5e55\uff0c\u4e00\u822c\u662f\u7ffb\u8bd1\uff0c\u6216\u8005\u91c7\u8bbf\u65f6\u5019\u53e3\u97f3\u4e0d\u6e05\u7684\u5b57\u5e55\u663e\u793a\u3002\u6709\u65f6\u5019\u8fd8\u4f1a\u6807\u6ce8\u4e00\u4e9b\u8bf4\u660e\uff0c\u4f8b\u5982\uff0c\u663e\u793a\u4eba\u7269\u59d3\u540d\u8eab\u4efd\uff0c\u5f53\u524d\u573a\u666f\u5730\u6216\u8005\u6807\u6ce8\u4e4b\u524d\u8bed\u8a00\u7684\u6897\u5728\u54ea\u91cc\u7b49\u3002<\/li>\n<li>captions<br \/>\n\u8fd9\u91cc<code>captions<\/code>\u4e13\u6307\u9690\u85cf\u5f0f\u5b57\u5e55\uff08Closed Captions\uff09\uff0c\u7b80\u79f0CC\u3002\u91ca\u4e49\u5982\u4e0b\u56fe\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201803\/cc.png\" width=\"640\" height=\"176\" alt=\"CC\u9690\u85cf\u5b57\u5e55\u89e3\u91ca\" class=\"alignnone\" \/><\/p>\n<p>\u6587\u5b57\u7248\u8bf4\u660e\u5982\u4e0b\uff1a<\/p>\n<blockquote><p>\u300c\u9690\u85cf\u5b57\u5e55\uff08Closed Captioning\uff0c\u7b80\u79f0CC)\u662f\u7535\u89c6\u8282\u76ee\u6216\u5f71\u789f\u4e2d\u4e3a\u6709\u7279\u6b8a\u60c5\u51b5\u6216\u8005\u9700\u8981\u7684\u89c2\u4f17\u800c\u51c6\u5907\u7684\u5b87\u5e55\uff0c\u4f8b\u5982\u89c2\u4f17\u5728\u542c\u529b\u4e0a\u6709\u969c\u788d\uff0c\u6216\u8005\u9700\u8981\u65e0\u97f3\u6761\u4ef6\u4e0b\u89c2\u8d4f\u8282\u76ee\u3002\u6b64\u65f6\u5b57\u5e55\u4e2d\u53ef\u4f7f\u7528\u4e00\u4e9b\u89e3\u91ca\u6027\u7684\u8bed\u8a00\u6765\u63cf\u8ff0\u8282\u76ee\u5185\u5bb9\u3002J<\/p><\/blockquote>\n<p>\u4e0a\u9762\u7684\u89e3\u91ca\u51fa\u81ea\u8fd9\u7bc7\u6211\u89c9\u5f97\u89e3\u91ca\u975e\u5e38\u597d\u7684\u6587\u7ae0\uff1a<a href=\"https:\/\/sspai.com\/post\/39683\" rel=\"noopener\" target=\"_blank\">\u4f60\u6240\u4e0d\u77e5\u9053\u7684 CC\uff1a\u9690\u85cf\u5f0f\u5b57\u5e55<\/a> <a href=\"http:\/\/www.zhangxinxu.com\/php\/myRecommBackup.php?id=close-caption\" rel=\"noopener\" target=\"_blank\">\u5907\u4efd\u6587\u5b57\u7248<\/a><\/p>\n<p>\u6839\u636e\u6211\u7684\u6d4b\u8bd5\uff0c\u4ece\u6548\u679c\u4e0a\u800c\u8a00\uff0c<code>subtitles<\/code>\u548c<code>captions<\/code>\u51e0\u4e4e\u770b\u4e0d\u5230\u4efb\u4f55\u533a\u522b\uff0c\u6709\u533a\u522b\u7684\u5e94\u8be5\u662f\u5728\u8bed\u4e49\u4e0a\uff0c\u6216\u8005\u5b57\u5e55\u6027\u8d28\u4e0a\u3002<code>subtitles<\/code>\u4e3b\u8981\u5c31\u662f\u5bf9\u4eba\u8bf4\u8bdd\u8fdb\u884c\u7ffb\u8bd1\u6216\u786e\u8ba4\uff1b\u800c<code>captions<\/code>\u4e0d\u4ec5\u9700\u8981\u4eba\u5bf9\u8bdd\u7684\u5185\u5bb9\u63d0\u793a\uff0c\u7d27\u5f20\u7684\u80cc\u666f\u97f3\u4e50\uff0c\u6216\u8005\u6c7d\u8f66\u5431\u5431\u4f5c\u54cd\u7684\u5239\u8f66\u58f0\u90fd\u9700\u8981\u5728\u5b57\u5e55\u4e2d\u63cf\u8ff0\u51fa\u6765\u3002\u8fd9\u6837\uff0c\u5373\u4f7f\u7528\u6237\u9759\u97f3\u4e5f\u80fd\u77e5\u9053\u89c6\u9891\u91cc\u5230\u5e95\u5728\u73a9\u4e9b\u4ec0\u4e48\u3002\u6211\u60f3\uff0c\u5982\u679c\u662f\u7ecf\u5e38\u770b\u56fd\u5916\u5f71\u89c6\u4f5c\u54c1\u7684\u5c0f\u4f19\u4f34\u80af\u5b9a\u4f1a\u6709\u7c7b\u4f3c\u7684\u5b57\u5e55\u4f53\u9a8c\uff0c\u6709\u7684\u5c31\u5bf9\u8bdd\u5b57\u5e55\uff0c\u6709\u7684\u4e8b\u65e0\u5de8\u7ec6\uff0c\u5c31\u662f<code>subtitles<\/code>\u548c<code>captions<\/code>\u7684\u533a\u522b\u3002<\/p>\n<p>\u5982\u679c\u6211\u4eec\u5bf9<code>&lt;video&gt;<\/code>\u5143\u7d20\u8bbe\u7f6e<code>controls<\/code>\u5c5e\u6027\uff0c\u5219\u5c31\u770b\u770b\u5230CC\u6807\u793a\u6309\u94ae\uff0c\u5982\u4e0b\u56fe\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201803\/2018-03-21_233022.png\" width=\"208\" height=\"168\" alt=\"CC\u6309\u94ae\u6807\u793a\u622a\u56fe\u793a\u610f\" class=\"alignnone\" \/><\/p>\n<p>\u70b9\u51fb\u4e4b\uff0c\u6211\u4eec\u4e0d\u4ec5\u53ef\u4ee5\u5207\u6362\u5b57\u5e55\uff08\u540c\u65f6\u591a\u4e2a<code>&lt;track&gt;<\/code>\uff09\uff0c\u8fd8\u53ef\u4ee5\u5173\u95ed\u5b57\u5e55\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201803\/2018-03-21_234229.png\" width=\"223\" height=\"161\" alt=\"\u5b57\u5e55\u5173\u95ed\u622a\u56fe\" class=\"alignnone\" \/>\n<\/li>\n<li>descriptions<br \/>\n\u5bf9\u89c6\u9891\u5185\u5bb9\u7684\u6587\u672c\u63cf\u8ff0\uff0c\u53ef\u4ee5\u8ba9\u76f2\u4eba\u7528\u6237\u77e5\u9053\u8fd9\u4e2a\u89c6\u9891\u63cf\u8ff0\u5185\u5bb9\uff0c\u867d\u7136\u770b\u4e0d\u89c1\u3002\u5982\u679c\u8bbe\u7f6e<code>kind<\/code>\u4e3a<code>descriptions<\/code>\uff0cVTT\u6587\u4ef6\u5185\u5bb9\u4e0d\u4f1a\u5728\u5c4f\u5e55\u4e0a\u51fa\u73b0\u3002\u5f53\u89c6\u9891\u5730\u5740\u4e0d\u53ef\u89c1\u7684\u573a\u5408\u4e5f\u6709\u7c7b\u4f3c\u4f5c\u7528\u3002\u7136\u800c\uff0c\u6211\u81ea\u5df1\u7422\u78e8\u4e86\u4e00\u4f1a\u513f\uff0c\u5b8c\u5168\u4e0d\u77e5\u9053\u600e\u4e48\u73a9\uff0c\u96be\u9053\u8981\u501f\u52a9\u8f85\u52a9\u9605\u8bfb\u8bbe\u5907\uff1f<\/li>\n<li>chapters<br \/>\n\u7528\u6237\u6d41\u91cf\u5a92\u4f53\u8d44\u6e90\u65f6\u5019\u51fa\u73b0\u7684\u7ae0\u8282\u6807\u9898\u3002<\/li>\n<li><code>metadata<\/code><br \/>\n\u5143\u4fe1\u606f\u3002\u7528\u6237\u4e0d\u53ef\u89c1\uff0c\u7ed9\u811a\u672c\u7528\u7684\u3002\u4f8b\u5982\u81ea\u5b9a\u4e49\u5b57\u5e55\u6548\u679c\uff0c\u4f46\u53c8\u4e0d\u5e0c\u671b\u89c6\u9891\u81ea\u5df1\u628a\u5b57\u5e55\u6548\u679c\u5448\u73b0\u51fa\u6765\u3002<\/li>\n<\/ul>\n<\/dd>\n<dt>label<\/dt>\n<dd>\u70b9\u51fbCC\u6309\u94ae\u9009\u62e9\u5b57\u5e55\u65f6\u5019\u51fa\u73b0\u7684\u6587\u5b57\u3002\u53ef\u53c2\u89c1\u4e0a\u9762\u90a3\u5f20\u5b57\u5e55\u5173\u95ed\u622a\u56fe\u3002\u5176\u4e2d\u7684\u201c\u4e2d\u6587\u5b57\u5e55\u201d\uff0c\u201c\u4e2d\u6587\u5b57\u5e55\u4fee\u6b63\u201d\u5c31\u662f\u4f7f\u7528<code>label<\/code>\u5c5e\u6027\u8bbe\u7f6e\u7684\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201803\/2018-03-21_235303.png\" width=\"322\" height=\"85\" alt=\"label\u4f7f\u7528\u4ee3\u7801\u622a\u56fe\" class=\"alignnone\" \/><\/dd>\n<dt>srclang<\/dt>\n<dd>VTT\u6587\u672c\u4fe1\u606f\u4f7f\u7528\u7684\u8bed\u8a00\u3002\u4f8b\u5982\uff0c\u4e2d\u6587zh\uff0c\u82f1\u6587en\u3002MDN\u4e0a\u8bf4\uff0c\u5982\u679c<code>kind<\/code>\u5c5e\u6027\u88ab\u8bbe\u4e3a <code>subtitles<\/code>\uff0c\u90a3\u4e48<code>srclang<\/code>\u5fc5\u987b\u5b9a\u4e49\u3002\u4f46\u662f\uff0c\u6839\u636e\u6211\u7684\u6d4b\u8bd5<code>srclang<\/code>\u4e0d\u5b9a\u4e49\u4e5f\u6ca1\u6709\u4efb\u4f55\u5f02\u5e38\uff0c\u5927\u5bb6\u53ef\u4ee5\u6ce8\u610f\u4e0b\u3002<\/p>\n<p>\u8fd8\u6709\u4e00\u70b9\uff0c\u6211\u8fd8\u4ee5\u4e3a<code>srclang<\/code>\u548cHTML\u9875\u9762\u7684<code>lang<\/code>\u8bbe\u7f6e\u6709\u5173\u8054\uff0c\u4f1a\u81ea\u52a8\u9009\u4e2d\u5bf9\u5e94\u8bed\u8a00\u7684\u5b57\u5e55\u4e4b\u7c7b\uff0c\u6d4b\u8bd5\u53d1\u73b0\u6211\u60f3\u591a\u4e86\u3002<\/dd>\n<dt>default<\/dt>\n<dd><code>default<\/code>\u6211\u5f00\u59cb\u4ee5\u4e3a\u662f\u9ed8\u8ba4\u4f18\u5148\u663e\u793a\u7684\u5b57\u5e55\uff0c\u540e\u6765\u53d1\u73b0\u4e0d\u662f\uff0c<code>default<\/code>\u6307\u7684\u662f\u9ed8\u8ba4\u4f1a\u663e\u793a\u7684\u5b57\u5e55\u3002\u4f8b\u5982\u4e24\u4e2a<code>&lt;track&gt;<\/code>\u5143\u7d20\uff0c\u5982\u679c\u90fd\u6ca1\u6709<code>default<\/code>\u5c5e\u6027\uff0c\u90a3\u90fd\u4e0d\u663e\u793a\uff0c\u9700\u8981\u7528\u6237\u624b\u52a8\u8c03\u51fa\u3002\u53e6\u5916\uff0c<code>default<\/code>\u53ea\u80fd\u51fa\u73b0\u5728\u4e00\u4e2a<code>&lt;track&gt;<\/code>\u5143\u7d20\u4e0a\u3002<\/dd>\n<\/dl>\n<p>\u4e00\u4e2a<code>&lt;video&gt;<\/code>\u89c6\u9891\u6807\u7b7e\u4e2d\u53ef\u4ee5\u6709\u591a\u4e2a<code>&lt;track&gt;<\/code>\u5143\u7d20\uff0c\u4e0d\u540c<code>&lt;track&gt;<\/code>\u5143\u7d20\u7684<code>kind<\/code>\u7b49\u5c5e\u6027\u503c\u4e5f\u90fd\u53ef\u4ee5\u4e0d\u4e00\u6837\u3002<\/p>\n<p>\u4f8b\u5982\uff0cdemo\u4e2d\u7684\u53cc\u5b57\u5e55HTML\u4ee3\u7801\uff1a<\/p>\n<pre>&lt;track src=\"example.vtt\" kind=\"subtitles\" label=\"\u4e2d\u6587\u5b57\u5e55\" srclang=\"zh\" default&gt;\r\n&lt;track src=\"example2.vtt\" kind=\"subtitles\" label=\"\u4e2d\u6587\u5b57\u5e55\uff08\u4fee\u6b63\uff09\" srclang=\"zh\"&gt;<\/pre>\n<h3>\u4e09\u3001HTML5 Video\u89c6\u9891\u5b57\u5e55\u7684\u6837\u5f0f\u63a7\u5236<\/h3>\n<p>CSS\u4e2d\u6709\u4e13\u95e8\u7684\u4f2a\u5143\u7d20<code>::cue<\/code>\u53ef\u4ee5\u63a7\u5236\u5b57\u5e55\u7684\u6837\u5f0f\u3002<\/p>\n<p>\u53ef\u4ee5\u63a7\u5236\u7684CSS\u5c5e\u6027\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>color<\/li>\n<li>opacity<\/li>\n<li>visibility<\/li>\n<li>text-decoration\u53ca\u76f8\u5173\u5c5e\u6027<\/li>\n<li>text-shadow<\/li>\n<li>background\u53ca\u76f8\u5173\u5c5e\u6027<\/li>\n<li>outline\u53ca\u76f8\u5173\u5c5e\u6027<\/li>\n<li>font\u53ca\u76f8\u5173\u5c5e\u6027\uff0c\u5305\u62ecline-height<\/li>\n<li>white-space<\/li>\n<li>text-combine-upright<\/li>\n<li>ruby-position<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre>::cue {\r\n    background: none;\r\n    color: #fff;\r\n    text-shadow: 0 1px #000, 1px 0 #000, -1px 0 #000, 0 -1px #000;\r\n    font-size: medium;\r\n}<\/pre>\n<p>\u5219\u5b57\u5e55\u76f4\u63a5\u5c31\u662f\u767d\u5b57\u9ed1\u8fb9\u6548\u679c\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201803\/2018-03-22_004755.png\" width=\"191\" height=\"147\" alt=\"\u5b57\u5e55\u9ed1\u8fb9\u6548\u679c\" class=\"alignnone\" \/><\/p>\n<p>\u9664\u6b64\u4e4b\u5916\uff0cWebVTT\u8fd8\u652f\u6301\u4e00\u4e9bHTML\u6807\u7b7e\u8fdb\u884c\u6837\u5f0f\u63a7\u5236\uff0c\u5e38\u89c1\u7684\u6709\u58f0\u97f3<code>&lt;v&gt;<\/code>\u6807\u7b7e\uff0c\u989c\u8272<code>&lt;c&gt;<\/code>\uff0c\u52a0\u7c97<code>&lt;b&gt;<\/code>\u6807\u7b7e\uff0c\u503e\u659c<code>&lt;i&gt;<\/code>\u6807\u7b7e\uff0c\u4e0b\u5212\u7ebf<code>&lt;u&gt;<\/code>\u6807\u7b7e\uff0c\u8fd8\u6709<code>&lt;ruby&gt;<\/code>\u548c<code>&lt;lang&gt;<\/code>\u6807\u7b7e\u7b49\u3002<\/p>\n<p>\u5176\u4e2d<code>&lt;v&gt;<\/code>\u6bd4\u8f83\u5e38\u89c1\uff0c\u8868\u793a\u58f0\u97f3\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u5c5e\u6027\u533a\u522b\u8c01\u8bf4\u7684\u8bdd\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>00:00:07.501 --&gt; 00:00:10.000\r\n&lt;v hanmeimei&gt;\u97e9\u6885\u6885\u8bf4\r\n\r\n00:00:07.501 --&gt; 00:00:10.000\r\n&lt;v lilei&gt;\u674e\u96f7\u8bf4<\/pre>\n<p>\u5219\u53ef\u4ee5\u5982\u4e0bCSS\u8fdb\u884c\u7ea2\u7eff\u989c\u8272\u533a\u5206\uff1a<\/p>\n<pre>::cue(v[voice=hanmeimei]) {\r\n   color: red;\r\n}\r\n::cue(v[voice=lilei]) {\r\n   color: green;\r\n}<\/pre>\n<p>\u6b64\u65f6\u5b57\u5e55\u6548\u679c\u5c31\u662f\uff0c\u97e9\u6885\u6885\u662f\u7ea2\u8272\uff0c\u800c\u674e\u96f7\u5219\u662f\u7eff\u8272\u8349\u539f\u3002<\/p>\n<p>\u6211\u4eec\u8fd8\u53ef\u4ee5\u76f4\u63a5\u6807\u7b7e\u63a7\u5236\u6837\u5f0f\uff08\u6ce8\u610f\uff0c\u4ec5\u652f\u6301\u4e0a\u9762\u63d0\u5230\u7684\u8fd9\u51e0\u4e2a\u6807\u7b7e\uff09\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>video::cue(i) {\r\n    color: blue;\r\n}<\/pre>\n<p>\u6216\u8005\u7c7b\u540d\uff1a<\/p>\n<pre>00:00:10.001 --> 00:00:12.000\r\n&lt;c.red&gt;\u5e26\u56de\u4f60\u7684\u867e<\/pre>\n<pre>video::cue(.red) {\r\n    color: red;\r\n}<\/pre>\n<p>\u7b49\u7b49\uff0c\u89c4\u5219\u8fd8\u662f\u633a\u591a\u7684\uff0c\u7bc7\u5e45\u539f\u56e0\uff0c\u5c31\u4e0d\u4e00\u4e00\u5c55\u5f00\u4e86\u3002\u57fa\u672c\u4e0a\uff0c\u4e0a\u9762\u8fd9\u51e0\u79cd\u60c5\u51b5\u5df2\u7ecf\u5f88\u591f\u7528\u4e86\u3002<\/p>\n<p>\u773c\u89c1\u4e3a\u5b9e\uff0c\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/study\/201803\/video-track-vtt-style.html\" rel=\"noopener\" target=\"_blank\">HTML5 video\u89c6\u9891WebVtt\u5b57\u5e55\u4e0e\u6837\u5f0f\u63a7\u5236demo<\/a><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201803\/2018-03-22_010049.png\" width=\"198\" height=\"111\" alt=\"i\u6807\u7b7e\u6548\u679c\u622a\u56fe\" class=\"alignnone\" \/><\/p>\n<h4>\u66f4\u5168\u9762\u7684\u6837\u5f0f\u63a7\u5236<\/h4>\n<p>\u539f\u751f\u7684\u5b57\u5e55\u6837\u5f0f\u63a7\u5236\uff0c\u6709CSS\u5c5e\u6027\u548c\u5b57\u5e55HTML\u6807\u7b7e\u53cc\u91cd\u9650\u5236\uff0c\u4e0d\u662f\u5f88\u7075\u6d3b\uff0c\u4f8b\u5982\uff0c\u6211\u5e0c\u671b\u5b57\u5e55\u6709\u6bd4\u8f83\u590d\u6742\u7684\u6392\u7248\uff0c\u8fd9\u53c8\u5f53\u5982\u4f55\u5904\u7406\uff1f<\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528\u5f00\u6e90\u7684HTML5\u89c6\u9891\u9879\u76ee\uff0c\u6211\u63a8\u8350\u8fd9\u4e2a\uff1a<a href=\"https:\/\/github.com\/paypal\/accessible-html5-video-player\" rel=\"noopener\" target=\"_blank\">accessible-html5-video-player<\/a>\uff0cpaypal\u7684\u5f00\u6e90\u9879\u76ee\uff0c\u53ef\u4ee5\u5bf9\u539f\u751f\u7684video\u8fdb\u884cUI\u91cd\u5b9a\u503c\uff0cJS\u5f88\u5c0f\uff0c\u672a\u538b\u7f29\u7248\u672c\u5c31\u51e0\u5341K\uff0c\u6839\u636e\u6211\u7684\u6d4b\u8bd5\uff0c\u5176\u4f1a\u628aVTT\u6587\u4ef6\u4e2dHTML\u7247\u6bb5\u76f4\u63a5\u5b8c\u6574\u8f93\u51fa\u5230\u9875\u9762\u4e2d\uff0c\u4e8e\u662f\u4e4e\uff0c\u6240\u6709\u7684CSS\u5c5e\u6027\u6211\u4eec\u90fd\u53ef\u4ee5\u4f7f\u7528\u4e86\uff0c\u4f8b\u5982\u6211\u4eec\u53ef\u4ee5\u628a\u5b57\u5e55\u5728\u89c6\u9891\u4e0a\u65b9\u76f4\u63a5\u4e00\u4e2a\u7edd\u5bf9\u5b9a\u4f4d\u4e0a\u53bb\u5c31\u597d\u4e86\u3002<\/p>\n<h3>\u56db\u3001HTML5 Video WebVTT\u683c\u5f0f\u5b57\u5e55\u7684\u5236\u4f5c<\/h3>\n<p>\u5236\u4f5c\u65b9\u6cd5\u4e00\u79cd\u662f\u89c6\u9891\u8f6f\u4ef6\u5bfc\u51fa\u5b57\u5e55\u518d\u4f7f\u7528\u5de5\u5177\u8f6c\uff0c\u53e6\u5916\u4e00\u79cd\u5c31\u662f\u81ea\u5df1\u624b\u5de5\u5199\uff0c\u6bd5\u7adf\u5b57\u5e55\u89c4\u5219\u4e00\u70b9\u90fd\u4e0d\u590d\u6742\u3002\u7136\u800c\uff0c\u7eaf\u624b\u5de5\uff0c\u90a3\u4e48\u591a\u65f6\u95f4\u4fe1\u606f\uff0c\u770b\u5bb9\u6613\u770b\u82b1\u5f04\u9519\uff0c\u6548\u7387\u6bd4\u8f83\u4f4e\u4e0b\u3002\u4e8e\u662f\uff0c\u6211\u5c31\u82b1\u4e862\u665a\u4e0a\u65f6\u95f4\u5f04\u4e86\u4e2a\u53ef\u4ee5\u63d0\u9ad8\u5236\u4f5c\u5b57\u5e55\u6548\u7387\u7684\u5de5\u5177\u3002<\/p>\n<p>\u82e5\u6709\u5174\u8da3\uff0c\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/sp\/webvtt.html\" rel=\"noopener\" target=\"_blank\" class=\"a_link\">WebVTT\u89c6\u9891\u5b57\u5e55\u5728\u7ebf\u751f\u6210\u5de5\u5177<\/a><\/p>\n<p>\u64cd\u4f5c\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u7c98\u8d34\u89c6\u9891\u5e76\u56de\u8f66<\/li>\n<li>\u8f93\u5165\u6587\u5b57\u5e76\u89e3\u6790<\/li>\n<li>\u62d6\u79fb\u65f6\u95f4\u8fdb\u884c\u5fae\u8c03\uff08\u5de5\u5177\u4f1a\u81ea\u52a8\u628a\u89c6\u9891\u5b9a\u4f4d\u5230\u62d6\u52a8\u65f6\u95f4\u70b9\u4e0a\uff09<\/li>\n<li>\u4e0b\u8f7d\u5b57\u5e55\u6587\u4ef6<\/li>\n<\/ol>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201803\/2018-03-19_235144.png\" width=\"835\" height=\"640\" alt=\"\u64cd\u4f5c\u6b65\u9aa4\u56fe\u793a\u610f\" class=\"alignnone\" \/><\/p>\n<p>\u672c\u6587\u4e00\u5f00\u59cb\u7684demo\u4e2d\u5b57\u5e55\u5c31\u662f\u7528\u8fd9\u4e2a\u5de5\u5177\u751f\u6210\u7684\u3002<\/p>\n<h3>\u4e94\u3001\u7ed3\u675f\u8bed<\/h3>\n<p>\u89c6\u9891\u662f\u4e2a\u597d\u4e1c\u897f\uff0c\u7b49\u641e\u5b9a\u4e86\u6d41\u91cf\u7684\u95ee\u9898\uff0c\u6211\u5012\u662f\u6709\u8ba1\u5212\u53ef\u4ee5\u8bd5\u8bd5\u4e00\u4e9b\u597d\u73a9\u7684\u4e1c\u897f\u3002<\/p>\n<p>\u5929\u8272\u5df2\u665a\uff0c\u5c31\u4e0d\u778e\u626f\u4e86\u3002<\/p>\n<p>\u611f\u8c22\u9605\u8bfb\uff0c\u6b22\u8fce\u4ea4\u6d41\uff01<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201611\/14.png\" align=\"absmiddle\"><\/p>\n<p>\u53c2\u8003\u6587\u7ae0\uff1a<a href=\"https:\/\/developer.mozilla.org\/en-US\/Apps\/Fundamentals\/Audio_and_video_delivery\/Adding_captions_and_subtitles_to_HTML5_video\" rel=\"noopener\" target=\"_blank\">Adding captions and subtitles to HTML5 video<\/a><\/p>\n<p>\u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u4f1a\u7ecf\u5e38\u66f4\u65b0\u77e5\u8bc6\u70b9\u4ee5\u53ca\u4fee\u6b63\u4e00\u4e9b\u9519\u8bef\uff0c\u56e0\u6b64\u8f6c\u8f7d\u8bf7\u4fdd\u7559\u539f\u51fa\u5904\uff0c\u65b9\u4fbf\u6eaf\u6e90\uff0c\u907f\u514d\u9648\u65e7\u9519\u8bef\u77e5\u8bc6\u7684\u8bef\u5bfc\uff0c\u540c\u65f6\u6709\u66f4\u597d\u7684\u9605\u8bfb\u4f53\u9a8c\u3002<br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=7421\">http:\/\/www.zhangxinxu.com\/wordpress\/?p=7421<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p>HTML5 Video\u89c6\u9891\u652f\u6301\u652f\u6301\u5916\u6302\u5b57\u5e55\uff0c\u6587\u4ef6\u540e\u7f00\u540d\u662f.vtt\uff0c\u79f0\u4e3aWebVTT\u683c\u5f0f\uff0c\u4e13\u95e8\u7684web\u5b57\u5e55\u683c\u5f0f\u3002\u4f7f\u7528\u5f88\u7b80\u5355\uff0c\u7528\u4e00\u4e2a&lt;track&gt;\u5143\u7d20\u5373\u53ef\u3002\u5e76\u4e14\u5b57\u5e55\u7684\u6837\u5f0f\u662f\u53ef\u4ee5\u63a7\u5236\u7684\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[1853,1227,340,1225,1226,1162,236],"_links":{"self":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/7421"}],"collection":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/comments?post=7421"}],"version-history":[{"count":0,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/7421\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/media?parent=7421"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/categories?post=7421"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/tags?post=7421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}