er second, or <a href="BandwidthEstimator.html#ESTIMATE_NOT_AVAILABLE"><code>BandwidthEstimator.ESTIMATE_NOT_AVAILABLE</code></a> if there
 is no estimate available yet.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onBytesTransferred(com.google.android.exoplayer2.upstream.DataSource,int)">onBytesTransferred</a></span>&#8203;(<a href="../DataSource.html" title="interface in com.google