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<h2 title="Class SampleSourceTrackRenderer" class="title">Class SampleSourceTrackRenderer</h2>
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<li><a href="../../../../com/google/android/exoplayer/TrackRenderer.html" title="class in com.google.android.exoplayer">com.google.android.exoplayer.TrackRenderer</a></li>
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<li>com.google.android.exoplayer.SampleSourceTrackRenderer</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../com/google/android/exoplayer/ExoPlayer.ExoPlayerComponent.html" title="interface in com.google.android.exoplayer">ExoPlayer.ExoPlayerComponent</a></dd>
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<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../com/google/android/exoplayer/text/eia608/Eia608TrackRenderer.html" title="class in com.google.android.exoplayer.text.eia608">Eia608TrackRenderer</a>, <a href="../../../../com/google/android/exoplayer/MediaCodecTrackRenderer.html" title="class in com.google.android.exoplayer">MediaCodecTrackRenderer</a>, <a href="../../../../com/google/android/exoplayer/metadata/MetadataTrackRenderer.html" title="class in com.google.android.exoplayer.metadata">MetadataTrackRenderer</a>, <a href="../../../../com/google/android/exoplayer/text/TextTrackRenderer.html" title="class in com.google.android.exoplayer.text">TextTrackRenderer</a></dd>
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<pre>public abstract class <span class="typeNameLabel">SampleSourceTrackRenderer</span>
extends <a href="../../../../com/google/android/exoplayer/TrackRenderer.html" title="class in com.google.android.exoplayer">TrackRenderer</a></pre>
<div class="block">Base class for <a href="../../../../com/google/android/exoplayer/TrackRenderer.html" title="class in com.google.android.exoplayer"><code>TrackRenderer</code></a> implementations that render samples obtained from a
<a href="../../../../com/google/android/exoplayer/SampleSource.html" title="interface in com.google.android.exoplayer"><code>SampleSource</code></a>.</div>
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<h3>Fields inherited from class&nbsp;com.google.android.exoplayer.<a href="../../../../com/google/android/exoplayer/TrackRenderer.html" title="class in com.google.android.exoplayer">TrackRenderer</a></h3>
<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#END_OF_TRACK_US">END_OF_TRACK_US</a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#MATCH_LONGEST_US">MATCH_LONGEST_US</a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_ENABLED">STATE_ENABLED</a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_PREPARED">STATE_PREPARED</a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_RELEASED">STATE_RELEASED</a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_STARTED">STATE_STARTED</a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_UNPREPARED">STATE_UNPREPARED</a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#UNKNOWN_TIME_US">UNKNOWN_TIME_US</a></code></li>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#SampleSourceTrackRenderer-com.google.android.exoplayer.SampleSource...-">SampleSourceTrackRenderer</a></span>(<a href="../../../../com/google/android/exoplayer/SampleSource.html" title="interface in com.google.android.exoplayer">SampleSource</a>...&nbsp;sources)</code>&nbsp;</td>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#doPrepare-long-">doPrepare</a></span>(long&nbsp;positionUs)</code>
<div class="block">Invoked to make progress when the renderer is in the <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_UNPREPARED"><code>TrackRenderer.STATE_UNPREPARED</code></a> state.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#doSomeWork-long-long-">doSomeWork</a></span>(long&nbsp;positionUs,
long&nbsp;elapsedRealtimeUs)</code>
<div class="block">Invoked to make progress when the renderer is in the <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_ENABLED"><code>TrackRenderer.STATE_ENABLED</code></a> or
<a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_STARTED"><code>TrackRenderer.STATE_STARTED</code></a> states.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>protected abstract void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#doSomeWork-long-long-boolean-">doSomeWork</a></span>(long&nbsp;positionUs,
long&nbsp;elapsedRealtimeUs,
boolean&nbsp;sourceIsReady)</code>
<div class="block">Called by <a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#doSomeWork-long-long-"><code>doSomeWork(long, long)</code></a>.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>protected long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#getBufferedPositionUs--">getBufferedPositionUs</a></span>()</code>
<div class="block">Returns an estimate of the absolute position in microseconds up to which data is buffered.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>protected long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#getDurationUs--">getDurationUs</a></span>()</code>
<div class="block">Returns the duration of the media being rendered.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>protected <a href="../../../../com/google/android/exoplayer/MediaFormat.html" title="class in com.google.android.exoplayer">MediaFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#getFormat-int-">getFormat</a></span>(int&nbsp;track)</code>
<div class="block">Returns the format of the specified track.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>protected int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#getTrackCount--">getTrackCount</a></span>()</code>
<div class="block">Returns the number of tracks exposed by the renderer.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>protected abstract boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#handlesTrack-com.google.android.exoplayer.MediaFormat-">handlesTrack</a></span>(<a href="../../../../com/google/android/exoplayer/MediaFormat.html" title="class in com.google.android.exoplayer">MediaFormat</a>&nbsp;mediaFormat)</code>
<div class="block">Returns whether this renderer is capable of handling the provided track.</div>
</td>
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<tr id="i8" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#maybeThrowError--">maybeThrowError</a></span>()</code>
<div class="block">Throws an error that's preventing the renderer from making progress or buffering more data at
this point in time.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#onDisabled--">onDisabled</a></span>()</code>
<div class="block">Called when the renderer is disabled.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>protected abstract void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#onDiscontinuity-long-">onDiscontinuity</a></span>(long&nbsp;positionUs)</code>
<div class="block">Invoked when a discontinuity is encountered.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#onEnabled-int-long-boolean-">onEnabled</a></span>(int&nbsp;track,
long&nbsp;positionUs,
boolean&nbsp;joining)</code>
<div class="block">Called when the renderer is enabled.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#onReleased--">onReleased</a></span>()</code>
<div class="block">Called when the renderer is released.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>protected int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#readSource-long-com.google.android.exoplayer.MediaFormatHolder-com.google.android.exoplayer.SampleHolder-">readSource</a></span>(long&nbsp;positionUs,
<a href="../../../../com/google/android/exoplayer/MediaFormatHolder.html" title="class in com.google.android.exoplayer">MediaFormatHolder</a>&nbsp;formatHolder,
<a href="../../../../com/google/android/exoplayer/SampleHolder.html" title="class in com.google.android.exoplayer">SampleHolder</a>&nbsp;sampleHolder)</code>
<div class="block">Reads from the enabled upstream source.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#seekTo-long-">seekTo</a></span>(long&nbsp;positionUs)</code>
<div class="block">Seeks to a specified time in the track.</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>protected long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#shiftInputPosition-long-">shiftInputPosition</a></span>(long&nbsp;positionUs)</code>
<div class="block">Shifts positions passed to <a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#onEnabled-int-long-boolean-"><code>onEnabled(int, long, boolean)</code></a>, <a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#seekTo-long-"><code>seekTo(long)</code></a> and
<a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#doSomeWork-long-long-"><code>doSomeWork(long, long)</code></a>.</div>
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<h3>Methods inherited from class&nbsp;com.google.android.exoplayer.<a href="../../../../com/google/android/exoplayer/TrackRenderer.html" title="class in com.google.android.exoplayer">TrackRenderer</a></h3>
<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#getMediaClock--">getMediaClock</a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#getState--">getState</a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#handleMessage-int-java.lang.Object-">handleMessage</a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#isEnded--">isEnded</a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#isReady--">isReady</a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#onStarted--">onStarted</a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#onStopped--">onStopped</a></code></li>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h4>SampleSourceTrackRenderer</h4>
<pre>public&nbsp;SampleSourceTrackRenderer(<a href="../../../../com/google/android/exoplayer/SampleSource.html" title="interface in com.google.android.exoplayer">SampleSource</a>...&nbsp;sources)</pre>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>sources</code> - One or more upstream sources from which the renderer can obtain samples.</dd>
</dl>
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<a name="doPrepare-long-">
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<h4>doPrepare</h4>
<pre>protected final&nbsp;boolean&nbsp;doPrepare(long&nbsp;positionUs)
throws <a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#doPrepare-long-">TrackRenderer</a></code></span></div>
<div class="block">Invoked to make progress when the renderer is in the <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_UNPREPARED"><code>TrackRenderer.STATE_UNPREPARED</code></a> state. This
method will be called repeatedly until <code>true</code> is returned.
<p>
This method should return quickly, and should not block if the renderer is currently unable to
make any useful progress.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#doPrepare-long-">doPrepare</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html" title="class in com.google.android.exoplayer">TrackRenderer</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>positionUs</code> - The player's current playback position.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>True if the renderer is now prepared. False otherwise.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></code> - If an error occurs.</dd>
</dl>
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<h4>onEnabled</h4>
<pre>protected&nbsp;void&nbsp;onEnabled(int&nbsp;track,
long&nbsp;positionUs,
boolean&nbsp;joining)
throws <a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#onEnabled-int-long-boolean-">TrackRenderer</a></code></span></div>
<div class="block">Called when the renderer is enabled.
<p>
The default implementation is a no-op.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#onEnabled-int-long-boolean-">onEnabled</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html" title="class in com.google.android.exoplayer">TrackRenderer</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>track</code> - The track for which the renderer is being enabled.</dd>
<dd><code>positionUs</code> - The player's current position.</dd>
<dd><code>joining</code> - Whether this renderer is being enabled to join an ongoing playback.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></code> - If an error occurs.</dd>
</dl>
</li>
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<h4>seekTo</h4>
<pre>protected&nbsp;void&nbsp;seekTo(long&nbsp;positionUs)
throws <a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#seekTo-long-">TrackRenderer</a></code></span></div>
<div class="block">Seeks to a specified time in the track.
<p>
This method may be called when the renderer is in the following states:
<a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_ENABLED"><code>TrackRenderer.STATE_ENABLED</code></a></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#seekTo-long-">seekTo</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html" title="class in com.google.android.exoplayer">TrackRenderer</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>positionUs</code> - The desired playback position in microseconds.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></code> - If an error occurs.</dd>
</dl>
</li>
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<h4>doSomeWork</h4>
<pre>protected final&nbsp;void&nbsp;doSomeWork(long&nbsp;positionUs,
long&nbsp;elapsedRealtimeUs)
throws <a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#doSomeWork-long-long-">TrackRenderer</a></code></span></div>
<div class="block">Invoked to make progress when the renderer is in the <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_ENABLED"><code>TrackRenderer.STATE_ENABLED</code></a> or
<a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_STARTED"><code>TrackRenderer.STATE_STARTED</code></a> states.
<p>
If the renderer's state is <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_STARTED"><code>TrackRenderer.STATE_STARTED</code></a>, then repeated calls to this method should
cause the media track to be rendered. If the state is <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_ENABLED"><code>TrackRenderer.STATE_ENABLED</code></a>, then repeated
calls should make progress towards getting the renderer into a position where it is ready to
render the track.
<p>
This method should return quickly, and should not block if the renderer is currently unable to
make any useful progress.
<p>
This method may be called when the renderer is in the following states:
<a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_ENABLED"><code>TrackRenderer.STATE_ENABLED</code></a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_STARTED"><code>TrackRenderer.STATE_STARTED</code></a></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#doSomeWork-long-long-">doSomeWork</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html" title="class in com.google.android.exoplayer">TrackRenderer</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>positionUs</code> - The current media time in microseconds, measured at the start of the
current iteration of the rendering loop.</dd>
<dd><code>elapsedRealtimeUs</code> - <a href="https://developer.android.com/reference/android/os/SystemClock.html?is-external=true#elapsedRealtime--" title="class or interface in android.os"><code>SystemClock.elapsedRealtime()</code></a> in microseconds,
measured at the start of the current iteration of the rendering loop.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></code> - If an error occurs.</dd>
</dl>
</li>
</ul>
<a name="getBufferedPositionUs--">
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<h4>getBufferedPositionUs</h4>
<pre>protected&nbsp;long&nbsp;getBufferedPositionUs()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#getBufferedPositionUs--">TrackRenderer</a></code></span></div>
<div class="block">Returns an estimate of the absolute position in microseconds up to which data is buffered.
<p>
This method may be called when the renderer is in the following states:
<a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_ENABLED"><code>TrackRenderer.STATE_ENABLED</code></a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_STARTED"><code>TrackRenderer.STATE_STARTED</code></a></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#getBufferedPositionUs--">getBufferedPositionUs</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html" title="class in com.google.android.exoplayer">TrackRenderer</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>An estimate of the absolute position in microseconds up to which data is buffered,
or <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#END_OF_TRACK_US"><code>TrackRenderer.END_OF_TRACK_US</code></a> if the track is fully buffered, or <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#UNKNOWN_TIME_US"><code>TrackRenderer.UNKNOWN_TIME_US</code></a> if
no estimate is available.</dd>
</dl>
</li>
</ul>
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<h4>getDurationUs</h4>
<pre>protected&nbsp;long&nbsp;getDurationUs()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#getDurationUs--">TrackRenderer</a></code></span></div>
<div class="block">Returns the duration of the media being rendered.
<p>
This method may be called when the renderer is in the following states:
<a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_PREPARED"><code>TrackRenderer.STATE_PREPARED</code></a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_ENABLED"><code>TrackRenderer.STATE_ENABLED</code></a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_STARTED"><code>TrackRenderer.STATE_STARTED</code></a></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#getDurationUs--">getDurationUs</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html" title="class in com.google.android.exoplayer">TrackRenderer</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The duration of the track in microseconds, or <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#MATCH_LONGEST_US"><code>TrackRenderer.MATCH_LONGEST_US</code></a> if
the track's duration should match that of the longest track whose duration is known, or
or <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#UNKNOWN_TIME_US"><code>TrackRenderer.UNKNOWN_TIME_US</code></a> if the duration is not known.</dd>
</dl>
</li>
</ul>
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<h4>maybeThrowError</h4>
<pre>protected&nbsp;void&nbsp;maybeThrowError()
throws <a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#maybeThrowError--">TrackRenderer</a></code></span></div>
<div class="block">Throws an error that's preventing the renderer from making progress or buffering more data at
this point in time.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#maybeThrowError--">maybeThrowError</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html" title="class in com.google.android.exoplayer">TrackRenderer</a></code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></code> - An error that's preventing the renderer from making progress or
buffering more data.</dd>
</dl>
</li>
</ul>
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<ul class="blockList">
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<h4>onDisabled</h4>
<pre>protected&nbsp;void&nbsp;onDisabled()
throws <a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#onDisabled--">TrackRenderer</a></code></span></div>
<div class="block">Called when the renderer is disabled.
<p>
The default implementation is a no-op.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#onDisabled--">onDisabled</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html" title="class in com.google.android.exoplayer">TrackRenderer</a></code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></code> - If an error occurs.</dd>
</dl>
</li>
</ul>
<a name="onReleased--">
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<ul class="blockList">
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<h4>onReleased</h4>
<pre>protected&nbsp;void&nbsp;onReleased()
throws <a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#onReleased--">TrackRenderer</a></code></span></div>
<div class="block">Called when the renderer is released.
<p>
The default implementation is a no-op.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#onReleased--">onReleased</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html" title="class in com.google.android.exoplayer">TrackRenderer</a></code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></code> - If an error occurs.</dd>
</dl>
</li>
</ul>
<a name="getTrackCount--">
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<h4>getTrackCount</h4>
<pre>protected final&nbsp;int&nbsp;getTrackCount()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#getTrackCount--">TrackRenderer</a></code></span></div>
<div class="block">Returns the number of tracks exposed by the renderer.
<p>
This method may be called when the renderer is in the following states:
<a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_PREPARED"><code>TrackRenderer.STATE_PREPARED</code></a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_ENABLED"><code>TrackRenderer.STATE_ENABLED</code></a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_STARTED"><code>TrackRenderer.STATE_STARTED</code></a></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#getTrackCount--">getTrackCount</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html" title="class in com.google.android.exoplayer">TrackRenderer</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The number of tracks.</dd>
</dl>
</li>
</ul>
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<h4>getFormat</h4>
<pre>protected final&nbsp;<a href="../../../../com/google/android/exoplayer/MediaFormat.html" title="class in com.google.android.exoplayer">MediaFormat</a>&nbsp;getFormat(int&nbsp;track)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#getFormat-int-">TrackRenderer</a></code></span></div>
<div class="block">Returns the format of the specified track.
<p>
This method may be called when the renderer is in the following states:
<a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_PREPARED"><code>TrackRenderer.STATE_PREPARED</code></a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_ENABLED"><code>TrackRenderer.STATE_ENABLED</code></a>, <a href="../../../../com/google/android/exoplayer/TrackRenderer.html#STATE_STARTED"><code>TrackRenderer.STATE_STARTED</code></a></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html#getFormat-int-">getFormat</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/google/android/exoplayer/TrackRenderer.html" title="class in com.google.android.exoplayer">TrackRenderer</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>track</code> - The track index.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The format of the specified track.</dd>
</dl>
</li>
</ul>
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<h4>shiftInputPosition</h4>
<pre>protected&nbsp;long&nbsp;shiftInputPosition(long&nbsp;positionUs)</pre>
<div class="block">Shifts positions passed to <a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#onEnabled-int-long-boolean-"><code>onEnabled(int, long, boolean)</code></a>, <a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#seekTo-long-"><code>seekTo(long)</code></a> and
<a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#doSomeWork-long-long-"><code>doSomeWork(long, long)</code></a>.
<p>
The default implementation does not modify the position. Except in very specific cases,
subclasses should not override this method.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>positionUs</code> - The position in microseconds.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The adjusted position in microseconds.</dd>
</dl>
</li>
</ul>
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<h4>readSource</h4>
<pre>protected final&nbsp;int&nbsp;readSource(long&nbsp;positionUs,
<a href="../../../../com/google/android/exoplayer/MediaFormatHolder.html" title="class in com.google.android.exoplayer">MediaFormatHolder</a>&nbsp;formatHolder,
<a href="../../../../com/google/android/exoplayer/SampleHolder.html" title="class in com.google.android.exoplayer">SampleHolder</a>&nbsp;sampleHolder)</pre>
<div class="block">Reads from the enabled upstream source.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>positionUs</code> - The current playback position.</dd>
<dd><code>formatHolder</code> - A <a href="../../../../com/google/android/exoplayer/MediaFormatHolder.html" title="class in com.google.android.exoplayer"><code>MediaFormatHolder</code></a> object to populate in the case of a new format.</dd>
<dd><code>sampleHolder</code> - A <a href="../../../../com/google/android/exoplayer/SampleHolder.html" title="class in com.google.android.exoplayer"><code>SampleHolder</code></a> object to populate in the case of a new sample.
If the caller requires the sample data then it must ensure that <a href="../../../../com/google/android/exoplayer/SampleHolder.html#data"><code>SampleHolder.data</code></a>
references a valid output buffer.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The result, which can be <a href="../../../../com/google/android/exoplayer/SampleSource.html#SAMPLE_READ"><code>SampleSource.SAMPLE_READ</code></a>,
<a href="../../../../com/google/android/exoplayer/SampleSource.html#FORMAT_READ"><code>SampleSource.FORMAT_READ</code></a>, <a href="../../../../com/google/android/exoplayer/SampleSource.html#NOTHING_READ"><code>SampleSource.NOTHING_READ</code></a> or
<a href="../../../../com/google/android/exoplayer/SampleSource.html#END_OF_STREAM"><code>SampleSource.END_OF_STREAM</code></a>.</dd>
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<h4>handlesTrack</h4>
<pre>protected abstract&nbsp;boolean&nbsp;handlesTrack(<a href="../../../../com/google/android/exoplayer/MediaFormat.html" title="class in com.google.android.exoplayer">MediaFormat</a>&nbsp;mediaFormat)
throws <a href="../../../../com/google/android/exoplayer/MediaCodecUtil.DecoderQueryException.html" title="class in com.google.android.exoplayer">MediaCodecUtil.DecoderQueryException</a></pre>
<div class="block">Returns whether this renderer is capable of handling the provided track.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>mediaFormat</code> - The format of the track.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>True if the renderer can handle the track, false otherwise.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/MediaCodecUtil.DecoderQueryException.html" title="class in com.google.android.exoplayer">MediaCodecUtil.DecoderQueryException</a></code> - Thrown if there was an error querying decoders.</dd>
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<h4>onDiscontinuity</h4>
<pre>protected abstract&nbsp;void&nbsp;onDiscontinuity(long&nbsp;positionUs)
throws <a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></pre>
<div class="block">Invoked when a discontinuity is encountered. Also invoked when the renderer is enabled, for
convenience.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>positionUs</code> - The playback position after the discontinuity, or the position at which
the renderer is being enabled.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></code> - If an error occurs handling the discontinuity.</dd>
</dl>
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<h4>doSomeWork</h4>
<pre>protected abstract&nbsp;void&nbsp;doSomeWork(long&nbsp;positionUs,
long&nbsp;elapsedRealtimeUs,
boolean&nbsp;sourceIsReady)
throws <a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></pre>
<div class="block">Called by <a href="../../../../com/google/android/exoplayer/SampleSourceTrackRenderer.html#doSomeWork-long-long-"><code>doSomeWork(long, long)</code></a>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>positionUs</code> - The current media time in microseconds, measured at the start of the
current iteration of the rendering loop.</dd>
<dd><code>elapsedRealtimeUs</code> - <a href="https://developer.android.com/reference/android/os/SystemClock.html?is-external=true#elapsedRealtime--" title="class or interface in android.os"><code>SystemClock.elapsedRealtime()</code></a> in microseconds,
measured at the start of the current iteration of the rendering loop.</dd>
<dd><code>sourceIsReady</code> - The result of the most recent call to
<a href="../../../../com/google/android/exoplayer/SampleSource.SampleSourceReader.html#continueBuffering-int-long-"><code>SampleSource.SampleSourceReader.continueBuffering(int, long)</code></a>.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></code> - If an error occurs.</dd>
<dd><code><a href="../../../../com/google/android/exoplayer/ExoPlaybackException.html" title="class in com.google.android.exoplayer">ExoPlaybackException</a></code></dd>
</dl>
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