media/docs/doc/reference/com/google/android/exoplayer2/source/EmptySampleStream.html
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<h2 title="Class EmptySampleStream" class="title">Class EmptySampleStream</h2>
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<dd><code><a href="SampleStream.html" title="interface in com.google.android.exoplayer2.source">SampleStream</a></code></dd>
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<pre>public final class <span class="typeNameLabel">EmptySampleStream</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="SampleStream.html" title="interface in com.google.android.exoplayer2.source">SampleStream</a></pre>
<div class="block">An empty <a href="SampleStream.html" title="interface in com.google.android.exoplayer2.source"><code>SampleStream</code></a>.</div>
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<h3>Nested classes/interfaces inherited from interface&nbsp;com.google.android.exoplayer2.source.<a href="SampleStream.html" title="interface in com.google.android.exoplayer2.source">SampleStream</a></h3>
<code><a href="SampleStream.ReadDataResult.html" title="annotation in com.google.android.exoplayer2.source">SampleStream.ReadDataResult</a>, <a href="SampleStream.ReadFlags.html" title="annotation in com.google.android.exoplayer2.source">SampleStream.ReadFlags</a></code></li>
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<code><a href="SampleStream.html#FLAG_OMIT_SAMPLE_DATA">FLAG_OMIT_SAMPLE_DATA</a>, <a href="SampleStream.html#FLAG_PEEK">FLAG_PEEK</a>, <a href="SampleStream.html#FLAG_REQUIRE_FORMAT">FLAG_REQUIRE_FORMAT</a></code></li>
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<th class="colFirst" scope="col">Constructor</th>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">EmptySampleStream</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
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<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isReady()">isReady</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns whether data is available to be read.</div>
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<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#maybeThrowError()">maybeThrowError</a></span>()</code></th>
<td class="colLast">
<div class="block">Throws an error that's preventing data from being read.</div>
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<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#readData(com.google.android.exoplayer2.FormatHolder,com.google.android.exoplayer2.decoder.DecoderInputBuffer,int)">readData</a></span>&#8203;(<a href="../FormatHolder.html" title="class in com.google.android.exoplayer2">FormatHolder</a>&nbsp;formatHolder,
<a href="../decoder/DecoderInputBuffer.html" title="class in com.google.android.exoplayer2.decoder">DecoderInputBuffer</a>&nbsp;buffer,
int&nbsp;readFlags)</code></th>
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<div class="block">Attempts to read from the stream.</div>
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<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#skipData(long)">skipData</a></span>&#8203;(long&nbsp;positionUs)</code></th>
<td class="colLast">
<div class="block">Attempts to skip to the keyframe before the specified position, or to the end of the stream if
<code>positionUs</code> is beyond it.</div>
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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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<h4>EmptySampleStream</h4>
<pre>public&nbsp;EmptySampleStream()</pre>
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<h4>isReady</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;isReady()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="SampleStream.html#isReady()">SampleStream</a></code></span></div>
<div class="block">Returns whether data is available to be read.
<p>Note: If the stream has ended then a buffer with the end of stream flag can always be read
from <a href="SampleStream.html#readData(com.google.android.exoplayer2.FormatHolder,com.google.android.exoplayer2.decoder.DecoderInputBuffer,int)"><code>SampleStream.readData(com.google.android.exoplayer2.FormatHolder, com.google.android.exoplayer2.decoder.DecoderInputBuffer, int)</code></a>. Hence an ended stream is always ready.</div>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="SampleStream.html#isReady()">isReady</a></code>&nbsp;in interface&nbsp;<code><a href="SampleStream.html" title="interface in com.google.android.exoplayer2.source">SampleStream</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Whether data is available to be read.</dd>
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<h4>maybeThrowError</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;maybeThrowError()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="SampleStream.html#maybeThrowError()">SampleStream</a></code></span></div>
<div class="block">Throws an error that's preventing data from being read. Does nothing if no such error exists.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="SampleStream.html#maybeThrowError()">maybeThrowError</a></code>&nbsp;in interface&nbsp;<code><a href="SampleStream.html" title="interface in com.google.android.exoplayer2.source">SampleStream</a></code></dd>
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<h4>readData</h4>
<pre class="methodSignature">public&nbsp;int&nbsp;readData&#8203;(<a href="../FormatHolder.html" title="class in com.google.android.exoplayer2">FormatHolder</a>&nbsp;formatHolder,
<a href="../decoder/DecoderInputBuffer.html" title="class in com.google.android.exoplayer2.decoder">DecoderInputBuffer</a>&nbsp;buffer,
<a href="SampleStream.ReadFlags.html" title="annotation in com.google.android.exoplayer2.source">@ReadFlags</a>
int&nbsp;readFlags)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="SampleStream.html#readData(com.google.android.exoplayer2.FormatHolder,com.google.android.exoplayer2.decoder.DecoderInputBuffer,int)">SampleStream</a></code></span></div>
<div class="block">Attempts to read from the stream.
<p>If the stream has ended then <a href="../C.html#BUFFER_FLAG_END_OF_STREAM"><code>C.BUFFER_FLAG_END_OF_STREAM</code></a> flag is set on <code>
buffer</code> and <a href="../C.html#RESULT_BUFFER_READ"><code>C.RESULT_BUFFER_READ</code></a> is returned. Else if no data is available then <a href="../C.html#RESULT_NOTHING_READ"><code>C.RESULT_NOTHING_READ</code></a> is returned. Else if the format of the media is changing or if <code>
formatRequired</code> is set then <code>formatHolder</code> is populated and <a href="../C.html#RESULT_FORMAT_READ"><code>C.RESULT_FORMAT_READ</code></a>
is returned. Else <code>buffer</code> is populated and <a href="../C.html#RESULT_BUFFER_READ"><code>C.RESULT_BUFFER_READ</code></a> is returned.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="SampleStream.html#readData(com.google.android.exoplayer2.FormatHolder,com.google.android.exoplayer2.decoder.DecoderInputBuffer,int)">readData</a></code>&nbsp;in interface&nbsp;<code><a href="SampleStream.html" title="interface in com.google.android.exoplayer2.source">SampleStream</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>formatHolder</code> - A <a href="../FormatHolder.html" title="class in com.google.android.exoplayer2"><code>FormatHolder</code></a> to populate in the case of reading a format.</dd>
<dd><code>buffer</code> - A <a href="../decoder/DecoderInputBuffer.html" title="class in com.google.android.exoplayer2.decoder"><code>DecoderInputBuffer</code></a> to populate in the case of reading a sample or the
end of the stream. If the end of the stream has been reached, the <a href="../C.html#BUFFER_FLAG_END_OF_STREAM"><code>C.BUFFER_FLAG_END_OF_STREAM</code></a> flag will be set on the buffer.</dd>
<dd><code>readFlags</code> - Flags controlling the behavior of this read operation.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The <a href="SampleStream.ReadDataResult.html" title="annotation in com.google.android.exoplayer2.source"><code>result</code></a> of the read operation.</dd>
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<h4>skipData</h4>
<pre class="methodSignature">public&nbsp;int&nbsp;skipData&#8203;(long&nbsp;positionUs)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="SampleStream.html#skipData(long)">SampleStream</a></code></span></div>
<div class="block">Attempts to skip to the keyframe before the specified position, or to the end of the stream if
<code>positionUs</code> is beyond it.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="SampleStream.html#skipData(long)">skipData</a></code>&nbsp;in interface&nbsp;<code><a href="SampleStream.html" title="interface in com.google.android.exoplayer2.source">SampleStream</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>positionUs</code> - The specified time.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The number of samples that were skipped.</dd>
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