Timed Divs HTML
From XiphWiki
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= File Extension = | = File Extension = | ||
| - | Files in this format | + | Files in this format are to be of text/x-tdht mime type. |
Files in this format should have a file extension of .tdht . | Files in this format should have a file extension of .tdht . | ||
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= The TDHT format = | = The TDHT format = | ||
| + | |||
| + | TDHT files are time-aligned text. This means there is a time association with blocks of text and there is time-based seeking functionality on those blocks of text. | ||
| + | |||
| + | Here is an example tdht file for subtitles: | ||
| + | |||
| + | <pre> | ||
| + | <html> | ||
| + | <head> | ||
| + | <title>Desperate Housewives - Season 5, Episode 6</title> | ||
| + | </head> | ||
| + | <body> | ||
| + | <div start="00:00:00,070" end="00:00:02,270"> | ||
| + | <p>Previously on...</p> | ||
| + | </div> | ||
| + | <div start="00:00:02,280" end="00:00:04,270"> | ||
| + | <p>We had an agreement to keep things casual.</p> | ||
| + | </div> | ||
| + | <div start="00:00:04,280" end="00:00:06,660"> | ||
| + | <p>Susan made her feelings clear.</p> | ||
| + | </div> | ||
| + | <div start="00:00:06,800" end="00:00:10,100"> | ||
| + | <p>So if I was with another woman, that wouldn't bother you? No, it wouldn't.</p> | ||
| + | </div> | ||
| + | </body> | ||
| + | </html> | ||
| + | </pre> | ||
Revision as of 03:55, 5 January 2009
Contents |
The following is a draft. It is at best incomplete and at worst completely broken. In any case, it is not an "official" Xiph spec/codec, so use with care.
Introduction
This page specifies a subclass of HTML documents that is a time-aligned text format for audio-visual content. We call the format "timed divs within HTML" or TDHT. It is intended to be used only in a World Wide Web context i.e. everywhere that Web browser functionality is available. Use cases for the format are subtitles, captions, annotations and other time aligned text as listed at http://wiki.xiph.org/index.php/OggText#Categories_of_Text_Codecs .
TDHT may be similar to W3C TimedText DFXP in many respects, but in comparison to DFXP it does not re-invent HTML, CSS and effects, but rather uses existing HTML, CSS and javascript for these. The purpose of DFXP is to create a web-independent exchange format for timed text, which is why it cannot directly be specified as a subpart of HTML. TDHT in contrast is HTML with a minimum number of changes.
File Extension
Files in this format are to be of text/x-tdht mime type.
Files in this format should have a file extension of .tdht .
The TDHT format
TDHT files are time-aligned text. This means there is a time association with blocks of text and there is time-based seeking functionality on those blocks of text.
Here is an example tdht file for subtitles:
<html>
<head>
<title>Desperate Housewives - Season 5, Episode 6</title>
</head>
<body>
<div start="00:00:00,070" end="00:00:02,270">
<p>Previously on...</p>
</div>
<div start="00:00:02,280" end="00:00:04,270">
<p>We had an agreement to keep things casual.</p>
</div>
<div start="00:00:04,280" end="00:00:06,660">
<p>Susan made her feelings clear.</p>
</div>
<div start="00:00:06,800" end="00:00:10,100">
<p>So if I was with another woman, that wouldn't bother you? No, it wouldn't.</p>
</div>
</body>
</html>
