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List:       ogg-dev
Subject:    Re: [ogg-dev] Ordering pages by granulepos or presentation time
From:       Ralph Giles <giles () xiph ! org>
Date:       2008-03-11 10:20:35
Message-ID: 24B26E93-DC67-41FE-B9AD-2EFD77D34931 () xiph ! org
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On 11-Mar-08, at 10:55 AM, ogg.k.ogg.k@googlemail.com wrote:

> oggmerge, when deciding what timestamp to assign to a page, uses  
> the previous
> page's granulepos. Since continuous codecs time by end time  
> (oggmerge as in
> the current xiph svn only does Vorbis), this is more or less  
> equivalent to
> assigning a page the timestamp of its starting time. I've copied  
> this behavior
> to Speex and Theora.

The spec says pages should be ordered by the time-equivalent of their  
granulepos, so what oggmerge is currently doing is probably incorrect.

  -r
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