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<div class="subTitle"><span class="packageLabelInType">Package</span> <a href="../../../../../com/google/android/exoplayer2/trackselection/package-summary.html">com.google.android.exoplayer2.trackselection</a></div>
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<h2 title="Interface TrackSelection" class="title">Interface TrackSelection</h2>
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<dt>All Known Subinterfaces:</dt>
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<dd><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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<dt>All Known Implementing Classes:</dt>
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<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/BaseTrackSelection.html" title="class in com.google.android.exoplayer2.trackselection">BaseTrackSelection</a></code>, <code><a href="../../../../../com/google/android/exoplayer2/testutil/FakeTrackSelection.html" title="class in com.google.android.exoplayer2.testutil">FakeTrackSelection</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>
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<pre>public interface <span class="typeNameLabel">TrackSelection</span></pre>
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<div class="block">A track selection consisting of a static subset of selected tracks belonging to a <a href="../../../../../com/google/android/exoplayer2/source/TrackGroup.html" title="class in com.google.android.exoplayer2.source"><code>TrackGroup</code></a>.
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<p>Tracks belonging to the subset are exposed in decreasing bandwidth order.</div>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colSecond" scope="col">Method</th>
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<th class="colLast" scope="col">Description</th>
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<tr id="i0" class="altColor">
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<td class="colFirst"><code><a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2">Format</a></code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#getFormat-int-">getFormat</a></span>​(int index)</code></th>
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<td class="colLast">
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<div class="block">Returns the format of the track at a given index in the selection.</div>
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</td>
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<tr id="i1" class="rowColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#getIndexInTrackGroup-int-">getIndexInTrackGroup</a></span>​(int index)</code></th>
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<td class="colLast">
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<div class="block">Returns the index in the track group of the track at a given index in the selection.</div>
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</td>
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<tr id="i2" class="altColor">
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<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>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#getTrackGroup--">getTrackGroup</a></span>()</code></th>
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<td class="colLast">
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<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>
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</td>
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</tr>
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<tr id="i3" class="rowColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#indexOf-int-">indexOf</a></span>​(int indexInTrackGroup)</code></th>
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<td class="colLast">
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<div class="block">Returns the index in the selection of the track with the specified index in the track group.</div>
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</td>
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</tr>
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<tr id="i4" class="altColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#indexOf-com.google.android.exoplayer2.Format-">indexOf</a></span>​(<a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2">Format</a> format)</code></th>
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<td class="colLast">
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<div class="block">Returns the index in the selection of the track with the specified format.</div>
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</td>
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</tr>
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<tr id="i5" class="rowColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/trackselection/TrackSelection.html#length--">length</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Returns the number of tracks in the selection.</div>
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</td>
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</tr>
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</table>
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<h3>Method Detail</h3>
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<a name="getTrackGroup--">
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<h4>getTrackGroup</h4>
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<pre><a href="../../../../../com/google/android/exoplayer2/source/TrackGroup.html" title="class in com.google.android.exoplayer2.source">TrackGroup</a> getTrackGroup()</pre>
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<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>
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</ul>
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<a name="length--">
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<h4>length</h4>
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<pre>int length()</pre>
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<div class="block">Returns the number of tracks in the selection.</div>
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</li>
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</ul>
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<a name="getFormat-int-">
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<h4>getFormat</h4>
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<pre><a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2">Format</a> getFormat​(int index)</pre>
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<div class="block">Returns the format of the track at a given index in the selection.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>index</code> - The index in the selection.</dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>The format of the selected track.</dd>
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</dl>
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<h4>getIndexInTrackGroup</h4>
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<pre>int getIndexInTrackGroup​(int index)</pre>
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<div class="block">Returns the index in the track group of the track at a given index in the selection.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>index</code> - The index in the selection.</dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>The index of the selected track.</dd>
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</dl>
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</li>
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</ul>
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<a name="indexOf-com.google.android.exoplayer2.Format-">
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<h4>indexOf</h4>
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<pre>int indexOf​(<a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2">Format</a> format)</pre>
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<div class="block">Returns the index in the selection of the track with the specified format. The format is
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located by identity so, for example, <code>selection.indexOf(selection.getFormat(index)) ==
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index</code> even if multiple selected tracks have formats that contain the same values.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>format</code> - The format.</dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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<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
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format is not part of the selection.</dd>
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</dl>
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<h4>indexOf</h4>
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<pre>int indexOf​(int indexInTrackGroup)</pre>
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<div class="block">Returns the index in the selection of the track with the specified index in the track group.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>indexInTrackGroup</code> - The index in the track group.</dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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<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
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index is not part of the selection.</dd>
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</dl>
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