OggSRT

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(add note about not customizing the srt format)
(SRT specification: note not supporting <b>, <font> etc., see http://lists.xiph.org/pipermail/accessibility/2008-December/000227.html)
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We adhere to existing SRT specifications without modification, for player compatibility.
We adhere to existing SRT specifications without modification, for player compatibility.
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The following describes the SRT format:
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* We base this on: http://en.wikipedia.org/wiki/Subrip#Sample_file
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http://forum.doom9.org/showthread.php?p=470941#post470941
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* Accordingly, it would make sense to be lenient regarding the index number and the display position.
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According to: http://en.wikipedia.org/wiki/Subrip#Sample_file
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With considerations of web interoperability, we do NOT require support for the additional markup tags
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it would make sense to be lenient regarding the index number and the
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such as &lt;b&gt; and &lt;font&gt;
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display position.
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described at: http://forum.doom9.org/showthread.php?p=470941#post470941
== Encapsulation ==
== Encapsulation ==

Revision as of 03:36, 8 December 2008

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.


This is an unimplented discussion draft about encapsulating srt subtitles in OggText.

Discussion is on the accessibility@xiph.org list.

SRT specification

We adhere to existing SRT specifications without modification, for player compatibility.

With considerations of web interoperability, we do NOT require support for the additional markup tags such as <b> and <font> described at: http://forum.doom9.org/showthread.php?p=470941#post470941

Encapsulation

For details of Ogg BOS headers and granulepos etc, see OggText

It should be simple:

  • It doesn't need an extra header.
  • Each time span is mapped into a single packet.
  • Silvia suggests to drop the index number upon mapping into Ogg -this will make it tolerant towards packet loss.
  • The time span and the text will thus be the data inside the page.
Retrieved from "http://wiki.xiph.org/OggSRT"
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