ceableLoader.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 the period to
     which this loader belongs has not yet started, the value will be the starting position in
     the period minus the duration of any media in previous periods still to be played.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<d