e><a href="SequenceableLoader.html" title="interface in com.google.android.exoplayer2.source">SequenceableLoader</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>positionUs</code> - The current playback position in microseconds. If playback of this period has
     not yet started, the value will be the starting position in this period minus the duration
     of any media in previous periods still to be played.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>True if 