be modified.</dd>
<dd><code>mediaChunkIterators</code> - An array of <a href="../source/chunk/MediaChunkIterator.html" title="interface in com.google.android.exoplayer2.source.chunk"><code>MediaChunkIterator</code></a>s providing information about
     the sequence of upcoming media chunks for each track in the selection. All iterators start
     from the media chunk which will be loaded next if the respective track is selected. Note
     that this information may not be available for all tracks, and so som