ode>id</code> - The identifier used to create the masking media period.</dd>
<dd><code>allocator</code> - The allocator used to create the media period.</dd>
<dd><code>preparePositionUs</code> - The expected start position, in microseconds.</dd>
</dl>
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</ul>
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</ul>
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<h3>Method Detail</h3>
<a id="setPrepareListener(com.google.android.ex