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<h2 title="Class BaseTrackSelection" class="title">Class BaseTrackSelection</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li><a href="https://developer.android.com/reference/java/lang/Object.html" title="class or interface in java.lang" class="externalLink" target="_top">java.lang.Object</a></li>
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<li>com.google.android.exoplayer2.trackselection.BaseTrackSelection</li>
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<dl>
<dt>All Implemented Interfaces:</dt>
<dd><code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">ExoTrackSelection</a></code>, <code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">TrackSelection</a></code></dd>
</dl>
<dl>
<dt>Direct Known Subclasses:</dt>
<dd><code><a href="../../../../../com/google/android/exoplayer2/trackselection/AdaptiveTrackSelection.html" title="class in com.google.android.exoplayer2.trackselection">AdaptiveTrackSelection</a></code>, <code><a href="../../../../../com/google/android/exoplayer2/trackselection/FixedTrackSelection.html" title="class in com.google.android.exoplayer2.trackselection">FixedTrackSelection</a></code>, <code><a href="../../../../../com/google/android/exoplayer2/trackselection/RandomTrackSelection.html" title="class in com.google.android.exoplayer2.trackselection">RandomTrackSelection</a></code></dd>
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<hr>
<pre>public abstract class <span class="typeNameLabel">BaseTrackSelection</span>
extends <a href="https://developer.android.com/reference/java/lang/Object.html" title="class or interface in java.lang" class="externalLink" target="_top">Object</a>
implements <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">ExoTrackSelection</a></pre>
<div class="block">An abstract base class suitable for most <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection"><code>ExoTrackSelection</code></a> implementations.</div>
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<h3>Nested classes/interfaces inherited from interface&nbsp;com.google.android.exoplayer2.trackselection.<a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">ExoTrackSelection</a></h3>
<code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.Definition.html" title="class in com.google.android.exoplayer2.trackselection">ExoTrackSelection.Definition</a>, <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.Factory.html" title="interface in com.google.android.exoplayer2.trackselection">ExoTrackSelection.Factory</a></code></li>
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<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Field</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../../../com/google/android/exoplayer2/source/TrackGroup.html" title="class in com.google.android.exoplayer2.source">TrackGroup</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#group">group</a></span></code></th>
<td class="colLast">
<div class="block">The selected <a href="../../../../../com/google/android/exoplayer2/source/TrackGroup.html" title="class in com.google.android.exoplayer2.source"><code>TrackGroup</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#length">length</a></span></code></th>
<td class="colLast">
<div class="block">The number of selected tracks within the <a href="../../../../../com/google/android/exoplayer2/source/TrackGroup.html" title="class in com.google.android.exoplayer2.source"><code>TrackGroup</code></a>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected int[]</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#tracks">tracks</a></span></code></th>
<td class="colLast">
<div class="block">The indices of the selected tracks in <a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#group"><code>group</code></a>, in order of decreasing bandwidth.</div>
</td>
</tr>
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<th class="colFirst" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
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<tr class="altColor">
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#BaseTrackSelection-com.google.android.exoplayer2.source.TrackGroup-int...-">BaseTrackSelection</a></span>&#8203;(<a href="../../../../../com/google/android/exoplayer2/source/TrackGroup.html" title="class in com.google.android.exoplayer2.source">TrackGroup</a>&nbsp;group,
int...&nbsp;tracks)</code></th>
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<h3>Method Summary</h3>
<table class="memberSummary" summary="Method Summary table, listing methods, and an explanation">
<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
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<tr id="i0" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#blacklist-int-long-">blacklist</a></span>&#8203;(int&nbsp;index,
long&nbsp;exclusionDurationMs)</code></th>
<td class="colLast">
<div class="block">Attempts to exclude the track at the specified index in the selection, making it ineligible for
selection by calls to <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#updateSelectedTrack-long-long-long-java.util.List-com.google.android.exoplayer2.source.chunk.MediaChunkIterator:A-"><code>ExoTrackSelection.updateSelectedTrack(long, long, long, List,
MediaChunkIterator[])</code></a> for the specified period of time.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#disable--">disable</a></span>()</code></th>
<td class="colLast">
<div class="block">Disables this track selection.</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="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#enable--">enable</a></span>()</code></th>
<td class="colLast">
<div class="block">Enables the track selection.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#equals-java.lang.Object-">equals</a></span>&#8203;(<a href="https://developer.android.com/reference/java/lang/Object.html" title="class or interface in java.lang" class="externalLink" target="_top">Object</a>&nbsp;obj)</code></th>
<td class="colLast">&nbsp;</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#evaluateQueueSize-long-java.util.List-">evaluateQueueSize</a></span>&#8203;(long&nbsp;playbackPositionUs,
<a href="https://developer.android.com/reference/java/util/List.html" title="class or interface in java.util" class="externalLink">List</a>&lt;? extends <a href="../../../../../com/google/android/exoplayer2/source/chunk/MediaChunk.html" title="class in com.google.android.exoplayer2.source.chunk" target="_top">MediaChunk</a>&gt;&nbsp;queue)</code></th>
<td class="colLast">
<div class="block">Returns the number of chunks that should be retained in the queue.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2">Format</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#getFormat-int-">getFormat</a></span>&#8203;(int&nbsp;index)</code></th>
<td class="colLast">
<div class="block">Returns the format of the track at a given index in the selection.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#getIndexInTrackGroup-int-">getIndexInTrackGroup</a></span>&#8203;(int&nbsp;index)</code></th>
<td class="colLast">
<div class="block">Returns the index in the track group of the track at a given index in the selection.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2">Format</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#getSelectedFormat--">getSelectedFormat</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the <a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2"><code>Format</code></a> of the individual selected track.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#getSelectedIndexInTrackGroup--">getSelectedIndexInTrackGroup</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the index in the track group of the individual selected track.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code><a href="../../../../../com/google/android/exoplayer2/source/TrackGroup.html" title="class in com.google.android.exoplayer2.source">TrackGroup</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#getTrackGroup--">getTrackGroup</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the <a href="../../../../../com/google/android/exoplayer2/source/TrackGroup.html" title="class in com.google.android.exoplayer2.source"><code>TrackGroup</code></a> to which the selected tracks belong.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#hashCode--">hashCode</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#indexOf-int-">indexOf</a></span>&#8203;(int&nbsp;indexInTrackGroup)</code></th>
<td class="colLast">
<div class="block">Returns the index in the selection of the track with the specified index in the track group.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#indexOf-com.google.android.exoplayer2.Format-">indexOf</a></span>&#8203;(<a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2">Format</a>&nbsp;format)</code></th>
<td class="colLast">
<div class="block">Returns the index in the selection of the track with the specified format.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>protected boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#isBlacklisted-int-long-">isBlacklisted</a></span>&#8203;(int&nbsp;index,
long&nbsp;nowMs)</code></th>
<td class="colLast">
<div class="block">Returns whether the track at the specified index in the selection is excluded.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#length--">length</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the number of tracks in the selection.</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#onPlaybackSpeed-float-">onPlaybackSpeed</a></span>&#8203;(float&nbsp;playbackSpeed)</code></th>
<td class="colLast">
<div class="block">Called to notify the selection of the current playback speed.</div>
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<h3>Methods inherited from interface&nbsp;com.google.android.exoplayer2.trackselection.<a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">ExoTrackSelection</a></h3>
<code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#getSelectedIndex--">getSelectedIndex</a>, <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#getSelectionData--">getSelectionData</a>, <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#getSelectionReason--">getSelectionReason</a>, <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#onDiscontinuity--">onDiscontinuity</a>, <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#onPlayWhenReadyChanged-boolean-">onPlayWhenReadyChanged</a>, <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#onRebuffer--">onRebuffer</a>, <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#shouldCancelChunkLoad-long-com.google.android.exoplayer2.source.chunk.Chunk-java.util.List-">shouldCancelChunkLoad</a>, <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#updateSelectedTrack-long-long-long-java.util.List-com.google.android.exoplayer2.source.chunk.MediaChunkIterator:A-">updateSelectedTrack</a></code></li>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://developer.android.com/reference/java/lang/Object.html" title="class or interface in java.lang" class="externalLink" target="_top">Object</a></h3>
<code><a href="https://developer.android.com/reference/java/lang/Object.html#clone--" title="class or interface in java.lang" class="externalLink">clone</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang" class="externalLink">toString</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang" class="externalLink" target="_top">wait</a></code></li>
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<pre>protected final&nbsp;<a href="../../../../../com/google/android/exoplayer2/source/TrackGroup.html" title="class in com.google.android.exoplayer2.source">TrackGroup</a> group</pre>
<div class="block">The selected <a href="../../../../../com/google/android/exoplayer2/source/TrackGroup.html" title="class in com.google.android.exoplayer2.source"><code>TrackGroup</code></a>.</div>
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<pre>protected final&nbsp;int length</pre>
<div class="block">The number of selected tracks within the <a href="../../../../../com/google/android/exoplayer2/source/TrackGroup.html" title="class in com.google.android.exoplayer2.source"><code>TrackGroup</code></a>. Always greater than zero.</div>
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<pre>protected final&nbsp;int[] tracks</pre>
<div class="block">The indices of the selected tracks in <a href="../../../../../com/google/android/exoplayer2/trackselection/BaseTrackSelection.html#group"><code>group</code></a>, in order of decreasing bandwidth.</div>
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<pre>public&nbsp;BaseTrackSelection&#8203;(<a href="../../../../../com/google/android/exoplayer2/source/TrackGroup.html" title="class in com.google.android.exoplayer2.source">TrackGroup</a>&nbsp;group,
int...&nbsp;tracks)</pre>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>group</code> - The <a href="../../../../../com/google/android/exoplayer2/source/TrackGroup.html" title="class in com.google.android.exoplayer2.source"><code>TrackGroup</code></a>. Must not be null.</dd>
<dd><code>tracks</code> - The indices of the selected tracks within the <a href="../../../../../com/google/android/exoplayer2/source/TrackGroup.html" title="class in com.google.android.exoplayer2.source"><code>TrackGroup</code></a>. Must not be
null or empty. May be in any order.</dd>
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<h4>enable</h4>
<pre>public&nbsp;void&nbsp;enable()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#enable--">ExoTrackSelection</a></code></span></div>
<div class="block">Enables the track selection. Dynamic changes via <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#updateSelectedTrack-long-long-long-java.util.List-com.google.android.exoplayer2.source.chunk.MediaChunkIterator:A-"><code>ExoTrackSelection.updateSelectedTrack(long, long, long,
List, MediaChunkIterator[])</code></a>, <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#evaluateQueueSize-long-java.util.List-"><code>ExoTrackSelection.evaluateQueueSize(long, List)</code></a> or <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#shouldCancelChunkLoad-long-com.google.android.exoplayer2.source.chunk.Chunk-java.util.List-"><code>ExoTrackSelection.shouldCancelChunkLoad(long, Chunk, List)</code></a> will only happen after this call.
<p>This method may not be called when the track selection is already enabled.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#enable--">enable</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">ExoTrackSelection</a></code></dd>
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<h4>disable</h4>
<pre>public&nbsp;void&nbsp;disable()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#disable--">ExoTrackSelection</a></code></span></div>
<div class="block">Disables this track selection. No further dynamic changes via <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#updateSelectedTrack-long-long-long-java.util.List-com.google.android.exoplayer2.source.chunk.MediaChunkIterator:A-"><code>ExoTrackSelection.updateSelectedTrack(long,
long, long, List, MediaChunkIterator[])</code></a>, <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#evaluateQueueSize-long-java.util.List-"><code>ExoTrackSelection.evaluateQueueSize(long, List)</code></a> or <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#shouldCancelChunkLoad-long-com.google.android.exoplayer2.source.chunk.Chunk-java.util.List-"><code>ExoTrackSelection.shouldCancelChunkLoad(long, Chunk, List)</code></a> will happen after this call.
<p>This method may only be called when the track selection is already enabled.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#disable--">disable</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">ExoTrackSelection</a></code></dd>
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<pre>public final&nbsp;<a href="../../../../../com/google/android/exoplayer2/source/TrackGroup.html" title="class in com.google.android.exoplayer2.source">TrackGroup</a>&nbsp;getTrackGroup()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#getTrackGroup--">TrackSelection</a></code></span></div>
<div class="block">Returns the <a href="../../../../../com/google/android/exoplayer2/source/TrackGroup.html" title="class in com.google.android.exoplayer2.source"><code>TrackGroup</code></a> to which the selected tracks belong.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#getTrackGroup--">getTrackGroup</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">TrackSelection</a></code></dd>
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<pre>public final&nbsp;int&nbsp;length()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#length--">TrackSelection</a></code></span></div>
<div class="block">Returns the number of tracks in the selection.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#length--">length</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">TrackSelection</a></code></dd>
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<pre>public final&nbsp;<a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2">Format</a>&nbsp;getFormat&#8203;(int&nbsp;index)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#getFormat-int-">TrackSelection</a></code></span></div>
<div class="block">Returns the format of the track at a given index in the selection.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#getFormat-int-">getFormat</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">TrackSelection</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>index</code> - The index in the selection.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The format of the selected track.</dd>
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<pre>public final&nbsp;int&nbsp;getIndexInTrackGroup&#8203;(int&nbsp;index)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#getIndexInTrackGroup-int-">TrackSelection</a></code></span></div>
<div class="block">Returns the index in the track group of the track at a given index in the selection.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#getIndexInTrackGroup-int-">getIndexInTrackGroup</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">TrackSelection</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>index</code> - The index in the selection.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The index of the selected track.</dd>
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<pre>public final&nbsp;int&nbsp;indexOf&#8203;(<a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2">Format</a>&nbsp;format)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#indexOf-com.google.android.exoplayer2.Format-">TrackSelection</a></code></span></div>
<div class="block">Returns the index in the selection of the track with the specified format. The format is
located by identity so, for example, <code>selection.indexOf(selection.getFormat(index)) ==
index</code> even if multiple selected tracks have formats that contain the same values.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#indexOf-com.google.android.exoplayer2.Format-">indexOf</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">TrackSelection</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>format</code> - The format.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The index in the selection, or <a href="../../../../../com/google/android/exoplayer2/C.html#INDEX_UNSET"><code>C.INDEX_UNSET</code></a> if the track with the specified
format is not part of the selection.</dd>
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<pre>public final&nbsp;int&nbsp;indexOf&#8203;(int&nbsp;indexInTrackGroup)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#indexOf-int-">TrackSelection</a></code></span></div>
<div class="block">Returns the index in the selection of the track with the specified index in the track group.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#indexOf-int-">indexOf</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">TrackSelection</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>indexInTrackGroup</code> - The index in the track group.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The index in the selection, or <a href="../../../../../com/google/android/exoplayer2/C.html#INDEX_UNSET"><code>C.INDEX_UNSET</code></a> if the track with the specified
index is not part of the selection.</dd>
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<pre>public final&nbsp;<a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2">Format</a>&nbsp;getSelectedFormat()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#getSelectedFormat--">ExoTrackSelection</a></code></span></div>
<div class="block">Returns the <a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2"><code>Format</code></a> of the individual selected track.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#getSelectedFormat--">getSelectedFormat</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">ExoTrackSelection</a></code></dd>
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<pre>public final&nbsp;int&nbsp;getSelectedIndexInTrackGroup()</pre>
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<div class="block">Returns the index in the track group of the individual selected track.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#getSelectedIndexInTrackGroup--">getSelectedIndexInTrackGroup</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">ExoTrackSelection</a></code></dd>
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<pre>public&nbsp;void&nbsp;onPlaybackSpeed&#8203;(float&nbsp;playbackSpeed)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#onPlaybackSpeed-float-">ExoTrackSelection</a></code></span></div>
<div class="block">Called to notify the selection of the current playback speed. The playback speed may affect
adaptive track selection.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#onPlaybackSpeed-float-">onPlaybackSpeed</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">ExoTrackSelection</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>playbackSpeed</code> - The factor by which playback is sped up.</dd>
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<pre>public&nbsp;int&nbsp;evaluateQueueSize&#8203;(long&nbsp;playbackPositionUs,
<a href="https://developer.android.com/reference/java/util/List.html" title="class or interface in java.util" class="externalLink">List</a>&lt;? extends <a href="../../../../../com/google/android/exoplayer2/source/chunk/MediaChunk.html" title="class in com.google.android.exoplayer2.source.chunk" target="_top">MediaChunk</a>&gt;&nbsp;queue)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#evaluateQueueSize-long-java.util.List-">ExoTrackSelection</a></code></span></div>
<div class="block">Returns the number of chunks that should be retained in the queue.
<p>May be called by sources that load media in discrete <a href="../../../../../com/google/android/exoplayer2/source/chunk/MediaChunk.html" title="class in com.google.android.exoplayer2.source.chunk"><code>MediaChunks</code></a> and
support discarding of buffered chunks.
<p>To avoid excessive re-buffering, implementations should normally return the size of the
queue. An example of a case where a smaller value may be returned is if network conditions have
improved dramatically, allowing chunks to be discarded and re-buffered in a track of
significantly higher quality. Discarding chunks may allow faster switching to a higher quality
track in this case.
<p>Note that even if the source supports discarding of buffered chunks, the actual number of
discarded chunks is not guaranteed. The source will call <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#updateSelectedTrack-long-long-long-java.util.List-com.google.android.exoplayer2.source.chunk.MediaChunkIterator:A-"><code>ExoTrackSelection.updateSelectedTrack(long,
long, long, List, MediaChunkIterator[])</code></a> with the updated queue of chunks before loading a new
chunk to allow switching to another quality.
<p>This method will only be called when the selection is enabled and none of the <a href="../../../../../com/google/android/exoplayer2/source/chunk/MediaChunk.html" title="class in com.google.android.exoplayer2.source.chunk"><code>MediaChunks</code></a> in the queue are currently loading.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#evaluateQueueSize-long-java.util.List-">evaluateQueueSize</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">ExoTrackSelection</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>playbackPositionUs</code> - The current playback position in microseconds. If playback of the
period to which this track selection 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>
<dd><code>queue</code> - The queue of buffered <a href="../../../../../com/google/android/exoplayer2/source/chunk/MediaChunk.html" title="class in com.google.android.exoplayer2.source.chunk"><code>MediaChunks</code></a>. Must not be modified.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The number of chunks to retain in the queue.</dd>
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<pre>public final&nbsp;boolean&nbsp;blacklist&#8203;(int&nbsp;index,
long&nbsp;exclusionDurationMs)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#blacklist-int-long-">ExoTrackSelection</a></code></span></div>
<div class="block">Attempts to exclude the track at the specified index in the selection, making it ineligible for
selection by calls to <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#updateSelectedTrack-long-long-long-java.util.List-com.google.android.exoplayer2.source.chunk.MediaChunkIterator:A-"><code>ExoTrackSelection.updateSelectedTrack(long, long, long, List,
MediaChunkIterator[])</code></a> for the specified period of time.
<p>Exclusion will fail if all other tracks are currently excluded. If excluding the currently
selected track, note that it will remain selected until the next call to <a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#updateSelectedTrack-long-long-long-java.util.List-com.google.android.exoplayer2.source.chunk.MediaChunkIterator:A-"><code>ExoTrackSelection.updateSelectedTrack(long, long, long, List, MediaChunkIterator[])</code></a>.
<p>This method will only be called when the selection is enabled.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html#blacklist-int-long-">blacklist</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../com/google/android/exoplayer2/trackselection/ExoTrackSelection.html" title="interface in com.google.android.exoplayer2.trackselection">ExoTrackSelection</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>index</code> - The index of the track in the selection.</dd>
<dd><code>exclusionDurationMs</code> - The duration of time for which the track should be excluded, in
milliseconds.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Whether exclusion was successful.</dd>
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<pre>protected final&nbsp;boolean&nbsp;isBlacklisted&#8203;(int&nbsp;index,
long&nbsp;nowMs)</pre>
<div class="block">Returns whether the track at the specified index in the selection is excluded.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>index</code> - The index of the track in the selection.</dd>
<dd><code>nowMs</code> - The current time in the timebase of <a href="https://developer.android.com/reference/android/os/SystemClock.html#elapsedRealtime--" title="class or interface in android.os" class="externalLink" target="_top"><code>SystemClock.elapsedRealtime()</code></a>.</dd>
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<pre>public&nbsp;int&nbsp;hashCode()</pre>
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<pre>public&nbsp;boolean&nbsp;equals&#8203;(@Nullable
<a href="https://developer.android.com/reference/java/lang/Object.html" title="class or interface in java.lang" class="externalLink" target="_top">Object</a>&nbsp;obj)</pre>
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<dd><code><a href="https://developer.android.com/reference/java/lang/Object.html#equals-java.lang.Object-" title="class or interface in java.lang" class="externalLink">equals</a></code>&nbsp;in class&nbsp;<code><a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_top">Object</a></code></dd>
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