gstream.html">Ogg bitstream overview</a>. The exact
mapping of raw Vorbis packets into a valid Ogg Vorbis physical
bitstream is described in the Vorbis I Specification.</p>

<h2>Bitstream structure</h2>

<p>An Ogg stream is structured by dividing incoming packets into
segments of up to 255 bytes and then wrapping a group of contiguous
packet segments into a variable length page preceded by a page
header. Both the header size and page size are variable; the page
header contains sizing information and checksu