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<title>CapturingAudioSink (ExoPlayer library)</title>
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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">com.google.android.exoplayer2.testutil</a></div>
<h2 title="Class CapturingAudioSink" class="title">Class CapturingAudioSink</h2>
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<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>
<li>
<ul class="inheritance">
<li><a href="../audio/ForwardingAudioSink.html" title="class in com.google.android.exoplayer2.audio">com.google.android.exoplayer2.audio.ForwardingAudioSink</a></li>
<li>
<ul class="inheritance">
<li>com.google.android.exoplayer2.testutil.CapturingAudioSink</li>
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<dt>All Implemented Interfaces:</dt>
<dd><code><a href="../audio/AudioSink.html" title="interface in com.google.android.exoplayer2.audio">AudioSink</a></code>, <code><a href="Dumper.Dumpable.html" title="interface in com.google.android.exoplayer2.testutil">Dumper.Dumpable</a></code></dd>
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<pre>public final class <span class="typeNameLabel">CapturingAudioSink</span>
extends <a href="../audio/ForwardingAudioSink.html" title="class in com.google.android.exoplayer2.audio">ForwardingAudioSink</a>
implements <a href="Dumper.Dumpable.html" title="interface in com.google.android.exoplayer2.testutil">Dumper.Dumpable</a></pre>
<div class="block">A <a href="../audio/ForwardingAudioSink.html" title="class in com.google.android.exoplayer2.audio"><code>ForwardingAudioSink</code></a> that captures configuration, discontinuity and buffer events.</div>
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<h3>Nested classes/interfaces inherited from interface&nbsp;com.google.android.exoplayer2.audio.<a href="../audio/AudioSink.html" title="interface in com.google.android.exoplayer2.audio">AudioSink</a></h3>
<code><a href="../audio/AudioSink.ConfigurationException.html" title="class in com.google.android.exoplayer2.audio">AudioSink.ConfigurationException</a>, <a href="../audio/AudioSink.InitializationException.html" title="class in com.google.android.exoplayer2.audio">AudioSink.InitializationException</a>, <a href="../audio/AudioSink.Listener.html" title="interface in com.google.android.exoplayer2.audio">AudioSink.Listener</a>, <a href="../audio/AudioSink.SinkFormatSupport.html" title="annotation in com.google.android.exoplayer2.audio">AudioSink.SinkFormatSupport</a>, <a href="../audio/AudioSink.UnexpectedDiscontinuityException.html" title="class in com.google.android.exoplayer2.audio">AudioSink.UnexpectedDiscontinuityException</a>, <a href="../audio/AudioSink.WriteException.html" title="class in com.google.android.exoplayer2.audio">AudioSink.WriteException</a></code></li>
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<h3>Fields inherited from interface&nbsp;com.google.android.exoplayer2.audio.<a href="../audio/AudioSink.html" title="interface in com.google.android.exoplayer2.audio">AudioSink</a></h3>
<code><a href="../audio/AudioSink.html#CURRENT_POSITION_NOT_SET">CURRENT_POSITION_NOT_SET</a>, <a href="../audio/AudioSink.html#SINK_FORMAT_SUPPORTED_DIRECTLY">SINK_FORMAT_SUPPORTED_DIRECTLY</a>, <a href="../audio/AudioSink.html#SINK_FORMAT_SUPPORTED_WITH_TRANSCODING">SINK_FORMAT_SUPPORTED_WITH_TRANSCODING</a>, <a href="../audio/AudioSink.html#SINK_FORMAT_UNSUPPORTED">SINK_FORMAT_UNSUPPORTED</a></code></li>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
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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="#%3Cinit%3E(com.google.android.exoplayer2.audio.AudioSink)">CapturingAudioSink</a></span>&#8203;(<a href="../audio/AudioSink.html" title="interface in com.google.android.exoplayer2.audio">AudioSink</a>&nbsp;sink)</code></th>
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<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>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#configure(com.google.android.exoplayer2.Format,int,int%5B%5D)">configure</a></span>&#8203;(<a href="../Format.html" title="class in com.google.android.exoplayer2">Format</a>&nbsp;inputFormat,
int&nbsp;specifiedBufferSize,
int[]&nbsp;outputChannels)</code></th>
<td class="colLast">
<div class="block">Configures (or reconfigures) the sink.</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="#dump(com.google.android.exoplayer2.testutil.Dumper)">dump</a></span>&#8203;(<a href="Dumper.html" title="class in com.google.android.exoplayer2.testutil">Dumper</a>&nbsp;dumper)</code></th>
<td class="colLast">
<div class="block">Dumps the fields of the object using the <code>dumper</code>.</div>
</td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#flush()">flush</a></span>()</code></th>
<td class="colLast">
<div class="block">Flushes the sink, after which it is ready to receive buffers from a new playback position.</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="#handleBuffer(java.nio.ByteBuffer,long,int)">handleBuffer</a></span>&#8203;(<a href="https://developer.android.com/reference/java/nio/ByteBuffer.html" title="class or interface in java.nio" class="externalLink" target="_top">ByteBuffer</a>&nbsp;buffer,
long&nbsp;presentationTimeUs,
int&nbsp;encodedAccessUnitCount)</code></th>
<td class="colLast">
<div class="block">Attempts to process data from a <a href="https://developer.android.com/reference/java/nio/ByteBuffer.html" title="class or interface in java.nio" class="externalLink" target="_top"><code>ByteBuffer</code></a>, starting from its current position and
ending at its limit (exclusive).</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#handleDiscontinuity()">handleDiscontinuity</a></span>()</code></th>
<td class="colLast">
<div class="block">Signals to the sink that the next buffer may be discontinuous with the previous buffer.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#reset()">reset</a></span>()</code></th>
<td class="colLast">
<div class="block">Resets the sink, releasing any resources that it currently holds.</div>
</td>
</tr>
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<h3>Methods inherited from class&nbsp;com.google.android.exoplayer2.audio.<a href="../audio/ForwardingAudioSink.html" title="class in com.google.android.exoplayer2.audio">ForwardingAudioSink</a></h3>
<code><a href="../audio/ForwardingAudioSink.html#disableTunneling()">disableTunneling</a>, <a href="../audio/ForwardingAudioSink.html#enableTunnelingV21()">enableTunnelingV21</a>, <a href="../audio/ForwardingAudioSink.html#experimentalFlushWithoutAudioTrackRelease()">experimentalFlushWithoutAudioTrackRelease</a>, <a href="../audio/ForwardingAudioSink.html#getCurrentPositionUs(boolean)">getCurrentPositionUs</a>, <a href="../audio/ForwardingAudioSink.html#getFormatSupport(com.google.android.exoplayer2.Format)">getFormatSupport</a>, <a href="../audio/ForwardingAudioSink.html#getPlaybackParameters()">getPlaybackParameters</a>, <a href="../audio/ForwardingAudioSink.html#getSkipSilenceEnabled()">getSkipSilenceEnabled</a>, <a href="../audio/ForwardingAudioSink.html#hasPendingData()">hasPendingData</a>, <a href="../audio/ForwardingAudioSink.html#isEnded()">isEnded</a>, <a href="../audio/ForwardingAudioSink.html#pause()">pause</a>, <a href="../audio/ForwardingAudioSink.html#play()">play</a>, <a href="../audio/ForwardingAudioSink.html#playToEndOfStream()">playToEndOfStream</a>, <a href="../audio/ForwardingAudioSink.html#setAudioAttributes(com.google.android.exoplayer2.audio.AudioAttributes)">setAudioAttributes</a>, <a href="../audio/ForwardingAudioSink.html#setAudioSessionId(int)">setAudioSessionId</a>, <a href="../audio/ForwardingAudioSink.html#setAuxEffectInfo(com.google.android.exoplayer2.audio.AuxEffectInfo)">setAuxEffectInfo</a>, <a href="../audio/ForwardingAudioSink.html#setListener(com.google.android.exoplayer2.audio.AudioSink.Listener)">setListener</a>, <a href="../audio/ForwardingAudioSink.html#setPlaybackParameters(com.google.android.exoplayer2.PlaybackParameters)">setPlaybackParameters</a>, <a href="../audio/ForwardingAudioSink.html#setSkipSilenceEnabled(boolean)">setSkipSilenceEnabled</a>, <a href="../audio/ForwardingAudioSink.html#setVolume(float)">setVolume</a>, <a href="../audio/ForwardingAudioSink.html#supportsFormat(com.google.android.exoplayer2.Format)">supportsFormat</a></code></li>
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<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#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink">equals</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#hashCode()" title="class or interface in java.lang" class="externalLink">hashCode</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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<h3>Constructor Detail</h3>
<a id="&lt;init&gt;(com.google.android.exoplayer2.audio.AudioSink)">
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<h4>CapturingAudioSink</h4>
<pre>public&nbsp;CapturingAudioSink&#8203;(<a href="../audio/AudioSink.html" title="interface in com.google.android.exoplayer2.audio">AudioSink</a>&nbsp;sink)</pre>
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<h4>configure</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;configure&#8203;(<a href="../Format.html" title="class in com.google.android.exoplayer2">Format</a>&nbsp;inputFormat,
int&nbsp;specifiedBufferSize,
@Nullable
int[]&nbsp;outputChannels)
throws <a href="../audio/AudioSink.ConfigurationException.html" title="class in com.google.android.exoplayer2.audio">AudioSink.ConfigurationException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../audio/AudioSink.html#configure(com.google.android.exoplayer2.Format,int,int%5B%5D)">AudioSink</a></code></span></div>
<div class="block">Configures (or reconfigures) the sink.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../audio/AudioSink.html#configure(com.google.android.exoplayer2.Format,int,int%5B%5D)">configure</a></code>&nbsp;in interface&nbsp;<code><a href="../audio/AudioSink.html" title="interface in com.google.android.exoplayer2.audio">AudioSink</a></code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../audio/ForwardingAudioSink.html#configure(com.google.android.exoplayer2.Format,int,int%5B%5D)">configure</a></code>&nbsp;in class&nbsp;<code><a href="../audio/ForwardingAudioSink.html" title="class in com.google.android.exoplayer2.audio">ForwardingAudioSink</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>inputFormat</code> - The format of audio data provided in the input buffers.</dd>
<dd><code>specifiedBufferSize</code> - A specific size for the playback buffer in bytes, or 0 to infer a
suitable buffer size.</dd>
<dd><code>outputChannels</code> - A mapping from input to output channels that is applied to this sink's
input as a preprocessing step, if handling PCM input. Specify <code>null</code> to leave the
input unchanged. Otherwise, the element at index <code>i</code> specifies index of the input
channel to map to output channel <code>i</code> when preprocessing input buffers. After the map
is applied the audio data will have <code>outputChannels.length</code> channels.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../audio/AudioSink.ConfigurationException.html" title="class in com.google.android.exoplayer2.audio">AudioSink.ConfigurationException</a></code> - If an error occurs configuring the sink.</dd>
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<h4>handleDiscontinuity</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;handleDiscontinuity()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../audio/AudioSink.html#handleDiscontinuity()">AudioSink</a></code></span></div>
<div class="block">Signals to the sink that the next buffer may be discontinuous with the previous buffer.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../audio/AudioSink.html#handleDiscontinuity()">handleDiscontinuity</a></code>&nbsp;in interface&nbsp;<code><a href="../audio/AudioSink.html" title="interface in com.google.android.exoplayer2.audio">AudioSink</a></code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../audio/ForwardingAudioSink.html#handleDiscontinuity()">handleDiscontinuity</a></code>&nbsp;in class&nbsp;<code><a href="../audio/ForwardingAudioSink.html" title="class in com.google.android.exoplayer2.audio">ForwardingAudioSink</a></code></dd>
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<h4>handleBuffer</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;handleBuffer&#8203;(<a href="https://developer.android.com/reference/java/nio/ByteBuffer.html" title="class or interface in java.nio" class="externalLink" target="_top">ByteBuffer</a>&nbsp;buffer,
long&nbsp;presentationTimeUs,
int&nbsp;encodedAccessUnitCount)
throws <a href="../audio/AudioSink.InitializationException.html" title="class in com.google.android.exoplayer2.audio">AudioSink.InitializationException</a>,
<a href="../audio/AudioSink.WriteException.html" title="class in com.google.android.exoplayer2.audio">AudioSink.WriteException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../audio/AudioSink.html#handleBuffer(java.nio.ByteBuffer,long,int)">AudioSink</a></code></span></div>
<div class="block">Attempts to process data from a <a href="https://developer.android.com/reference/java/nio/ByteBuffer.html" title="class or interface in java.nio" class="externalLink" target="_top"><code>ByteBuffer</code></a>, starting from its current position and
ending at its limit (exclusive). The position of the <a href="https://developer.android.com/reference/java/nio/ByteBuffer.html" title="class or interface in java.nio" class="externalLink" target="_top"><code>ByteBuffer</code></a> is advanced by the
number of bytes that were handled. <a href="../audio/AudioSink.Listener.html#onPositionDiscontinuity()"><code>AudioSink.Listener.onPositionDiscontinuity()</code></a> will be called if
<code>presentationTimeUs</code> is discontinuous with the last buffer handled since the last reset.
<p>Returns whether the data was handled in full. If the data was not handled in full then the
same <a href="https://developer.android.com/reference/java/nio/ByteBuffer.html" title="class or interface in java.nio" class="externalLink" target="_top"><code>ByteBuffer</code></a> must be provided to subsequent calls until it has been fully consumed,
except in the case of an intervening call to <a href="../audio/AudioSink.html#flush()"><code>AudioSink.flush()</code></a> (or to <a href="../audio/AudioSink.html#configure(com.google.android.exoplayer2.Format,int,int%5B%5D)"><code>AudioSink.configure(Format,
int, int[])</code></a> that causes the sink to be flushed).</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../audio/AudioSink.html#handleBuffer(java.nio.ByteBuffer,long,int)">handleBuffer</a></code>&nbsp;in interface&nbsp;<code><a href="../audio/AudioSink.html" title="interface in com.google.android.exoplayer2.audio">AudioSink</a></code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../audio/ForwardingAudioSink.html#handleBuffer(java.nio.ByteBuffer,long,int)">handleBuffer</a></code>&nbsp;in class&nbsp;<code><a href="../audio/ForwardingAudioSink.html" title="class in com.google.android.exoplayer2.audio">ForwardingAudioSink</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>buffer</code> - The buffer containing audio data.</dd>
<dd><code>presentationTimeUs</code> - The presentation timestamp of the buffer in microseconds.</dd>
<dd><code>encodedAccessUnitCount</code> - The number of encoded access units in the buffer, or 1 if the
buffer contains PCM audio. This allows batching multiple encoded access units in one
buffer.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Whether the buffer was handled fully.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../audio/AudioSink.InitializationException.html" title="class in com.google.android.exoplayer2.audio">AudioSink.InitializationException</a></code> - If an error occurs initializing the sink.</dd>
<dd><code><a href="../audio/AudioSink.WriteException.html" title="class in com.google.android.exoplayer2.audio">AudioSink.WriteException</a></code> - If an error occurs writing the audio data.</dd>
</dl>
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<h4>flush</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;flush()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../audio/AudioSink.html#flush()">AudioSink</a></code></span></div>
<div class="block">Flushes the sink, after which it is ready to receive buffers from a new playback position.
<p>The audio session may remain active until <a href="../audio/AudioSink.html#reset()"><code>AudioSink.reset()</code></a> is called.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../audio/AudioSink.html#flush()">flush</a></code>&nbsp;in interface&nbsp;<code><a href="../audio/AudioSink.html" title="interface in com.google.android.exoplayer2.audio">AudioSink</a></code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../audio/ForwardingAudioSink.html#flush()">flush</a></code>&nbsp;in class&nbsp;<code><a href="../audio/ForwardingAudioSink.html" title="class in com.google.android.exoplayer2.audio">ForwardingAudioSink</a></code></dd>
</dl>
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<h4>reset</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;reset()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../audio/AudioSink.html#reset()">AudioSink</a></code></span></div>
<div class="block">Resets the sink, releasing any resources that it currently holds.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../audio/AudioSink.html#reset()">reset</a></code>&nbsp;in interface&nbsp;<code><a href="../audio/AudioSink.html" title="interface in com.google.android.exoplayer2.audio">AudioSink</a></code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../audio/ForwardingAudioSink.html#reset()">reset</a></code>&nbsp;in class&nbsp;<code><a href="../audio/ForwardingAudioSink.html" title="class in com.google.android.exoplayer2.audio">ForwardingAudioSink</a></code></dd>
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<h4>dump</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;dump&#8203;(<a href="Dumper.html" title="class in com.google.android.exoplayer2.testutil">Dumper</a>&nbsp;dumper)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="Dumper.Dumpable.html#dump(com.google.android.exoplayer2.testutil.Dumper)">Dumper.Dumpable</a></code></span></div>
<div class="block">Dumps the fields of the object using the <code>dumper</code>.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="Dumper.Dumpable.html#dump(com.google.android.exoplayer2.testutil.Dumper)">dump</a></code>&nbsp;in interface&nbsp;<code><a href="Dumper.Dumpable.html" title="interface in com.google.android.exoplayer2.testutil">Dumper.Dumpable</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dumper</code> - The <a href="Dumper.html" title="class in com.google.android.exoplayer2.testutil"><code>Dumper</code></a> to be used to dump fields.</dd>
</dl>
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