ck
thread. This is important because <tt>ov_open_callbacks()</tt> may be a fairly time-consuming
call, given that the full structure of the file is determined at this point,
which may require reading large parts of the file under certain circumstances
(determining all the logical bitstreams in one physical bitstream, for
example).  See <a href="threads.html">Thread Safety</a> for other information on using libvorbisfile with threads.
<p>

<dt><b>[c] Mixed media streams</b><p>
<dd>
As of Vorbisfile release 1