mber</pre>
<div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span></div>
<div class="block">The sequence number of the window in the buffered sequence of windows this media period is part
 of. <a href="../C.html#INDEX_UNSET"><code>C.INDEX_UNSET</code></a> if the media period id is not part of a buffered sequence of windows.</div>
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<pre>public final&nbsp;int 