[Vorbis] How do I seek to seek to specific samples using libvorbis?

[Sergei Steshenko]

I am no Vorbis developer, and I have never looked into the details of Ogg-Vorbis implementation, but since Ogg-Vorbis is a lossy format, there is no one to one correspondence of PCM samples and bytes in the stream. Ogg-Vorbis is also a variable bitrate format.

I mean that first the stream has to be reconstituted into uncompressed PCM samples, and only then you can get to the desired sample.
Regards,  Sergei.
 
      From: Madison Link <ducks at ducksnm.com>
 To: vorbis at xiph.org 
 Sent: Tuesday, May 19, 2015 3:38 AM
 Subject: [Vorbis] How do I seek to seek to specific samples using libvorbis?
   
 <!--#yiv2438338505 #yiv2438338505 p.yiv2438338505MsoNormal, #yiv2438338505 li.yiv2438338505MsoNormal, #yiv2438338505 div.yiv2438338505MsoNormal {margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman";}#yiv2438338505 a:link, #yiv2438338505 span.yiv2438338505MsoHyperlink {color:blue;text-decoration:underline;}#yiv2438338505 a:visited, #yiv2438338505 span.yiv2438338505MsoHyperlinkFollowed {color:purple;text-decoration:underline;}#yiv2438338505 span.yiv2438338505EmailStyle17 {font-family:Arial;color:windowtext;} _filtered #yiv2438338505 {margin:1.0in 1.25in 1.0in 1.25in;}#yiv2438338505 div.yiv2438338505Section1 {}-->What is the best practice for seeking to a specific(arbitrary) PCM sample in an Ogg file that contains vorbis, using libvorbis? 
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