ned if the <a href="ogg_sync_state.html">ogg_sync_state</a> structure is initialized and ready.</li>
<li>
nonzero is returned if the structure was never initialized, or if an unrecoverable internal error occurred in a previous call using the passed in <a href="ogg_sync_state.html">ogg_sync_state</a> struct.</li>
</blockquote>
<p>

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