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media/docs/doc/reference/com/google/android/exoplayer2/offline/SegmentDownloader.html
olly a038f875f6 Update Javadoc for 2.14.0 
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<title>SegmentDownloader (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.offline</a></div>
<h2 title="Class SegmentDownloader" class="title">Class SegmentDownloader&lt;M extends <a href="FilterableManifest.html" title="interface in com.google.android.exoplayer2.offline">FilterableManifest</a>&lt;M&gt;&gt;</h2>
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<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.offline.SegmentDownloader&lt;M&gt;</li>
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<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>M</code> - The type of the manifest object.</dd>
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<dt>All Implemented Interfaces:</dt>
<dd><code><a href="Downloader.html" title="interface in com.google.android.exoplayer2.offline">Downloader</a></code></dd>
</dl>
<dl>
<dt>Direct Known Subclasses:</dt>
<dd><code><a href="../source/dash/offline/DashDownloader.html" title="class in com.google.android.exoplayer2.source.dash.offline">DashDownloader</a></code>, <code><a href="../source/hls/offline/HlsDownloader.html" title="class in com.google.android.exoplayer2.source.hls.offline">HlsDownloader</a></code>, <code><a href="../source/smoothstreaming/offline/SsDownloader.html" title="class in com.google.android.exoplayer2.source.smoothstreaming.offline">SsDownloader</a></code></dd>
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<pre>public abstract class <span class="typeNameLabel">SegmentDownloader&lt;M extends <a href="FilterableManifest.html" title="interface in com.google.android.exoplayer2.offline">FilterableManifest</a>&lt;M&gt;&gt;</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="Downloader.html" title="interface in com.google.android.exoplayer2.offline">Downloader</a></pre>
<div class="block">Base class for multi segment stream downloaders.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected static class&nbsp;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="SegmentDownloader.Segment.html" title="class in com.google.android.exoplayer2.offline">SegmentDownloader.Segment</a></span></code></th>
<td class="colLast">
<div class="block">Smallest unit of content to be downloaded.</div>
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<h3>Nested classes/interfaces inherited from interface&nbsp;com.google.android.exoplayer2.offline.<a href="Downloader.html" title="interface in com.google.android.exoplayer2.offline">Downloader</a></h3>
<code><a href="Downloader.ProgressListener.html" title="interface in com.google.android.exoplayer2.offline">Downloader.ProgressListener</a></code></li>
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<th class="colFirst" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(com.google.android.exoplayer2.MediaItem,com.google.android.exoplayer2.upstream.ParsingLoadable.Parser,com.google.android.exoplayer2.upstream.cache.CacheDataSource.Factory,java.util.concurrent.Executor)">SegmentDownloader</a></span>&#8203;(<a href="../MediaItem.html" title="class in com.google.android.exoplayer2">MediaItem</a>&nbsp;mediaItem,
<a href="../upstream/ParsingLoadable.Parser.html" title="interface in com.google.android.exoplayer2.upstream">ParsingLoadable.Parser</a>&lt;<a href="SegmentDownloader.html" title="type parameter in SegmentDownloader">M</a>&gt;&nbsp;manifestParser,
<a href="../upstream/cache/CacheDataSource.Factory.html" title="class in com.google.android.exoplayer2.upstream.cache">CacheDataSource.Factory</a>&nbsp;cacheDataSourceFactory,
<a href="https://developer.android.com/reference/java/util/concurrent/Executor.html" title="class or interface in java.util.concurrent" class="externalLink" target="_top">Executor</a>&nbsp;executor)</code></th>
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<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#cancel()">cancel</a></span>()</code></th>
<td class="colLast">
<div class="block">Permanently cancels the downloading by this downloader.</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="#download(com.google.android.exoplayer2.offline.Downloader.ProgressListener)">download</a></span>&#8203;(<a href="Downloader.ProgressListener.html" title="interface in com.google.android.exoplayer2.offline">Downloader.ProgressListener</a>&nbsp;progressListener)</code></th>
<td class="colLast">
<div class="block">Downloads the content.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>protected &lt;T&gt;&nbsp;T</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#execute(com.google.android.exoplayer2.util.RunnableFutureTask,boolean)">execute</a></span>&#8203;(<a href="../util/RunnableFutureTask.html" title="class in com.google.android.exoplayer2.util">RunnableFutureTask</a>&lt;T,&#8203;?&gt;&nbsp;runnable,
boolean&nbsp;removing)</code></th>
<td class="colLast">
<div class="block">Executes the provided <a href="../util/RunnableFutureTask.html" title="class in com.google.android.exoplayer2.util"><code>RunnableFutureTask</code></a>.</div>
</td>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code>protected static <a href="../upstream/DataSpec.html" title="class in com.google.android.exoplayer2.upstream">DataSpec</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getCompressibleDataSpec(android.net.Uri)">getCompressibleDataSpec</a></span>&#8203;(<a href="https://developer.android.com/reference/android/net/Uri.html" title="class or interface in android.net" class="externalLink" target="_top">Uri</a>&nbsp;uri)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>protected <a href="SegmentDownloader.html" title="type parameter in SegmentDownloader">M</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getManifest(com.google.android.exoplayer2.upstream.DataSource,com.google.android.exoplayer2.upstream.DataSpec,boolean)">getManifest</a></span>&#8203;(<a href="../upstream/DataSource.html" title="interface in com.google.android.exoplayer2.upstream">DataSource</a>&nbsp;dataSource,
<a href="../upstream/DataSpec.html" title="class in com.google.android.exoplayer2.upstream">DataSpec</a>&nbsp;dataSpec,
boolean&nbsp;removing)</code></th>
<td class="colLast">
<div class="block">Loads and parses a manifest.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>protected abstract <a href="https://developer.android.com/reference/java/util/List.html" title="class or interface in java.util" class="externalLink">List</a>&lt;<a href="SegmentDownloader.Segment.html" title="class in com.google.android.exoplayer2.offline" target="_top">SegmentDownloader.Segment</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSegments(com.google.android.exoplayer2.upstream.DataSource,M,boolean)">getSegments</a></span>&#8203;(<a href="../upstream/DataSource.html" title="interface in com.google.android.exoplayer2.upstream">DataSource</a>&nbsp;dataSource,
<a href="SegmentDownloader.html" title="type parameter in SegmentDownloader">M</a>&nbsp;manifest,
boolean&nbsp;removing)</code></th>
<td class="colLast">
<div class="block">Returns a list of all downloadable <a href="SegmentDownloader.Segment.html" title="class in com.google.android.exoplayer2.offline"><code>SegmentDownloader.Segment</code></a>s for a given manifest.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#remove()">remove</a></span>()</code></th>
<td class="colLast">
<div class="block">Removes the content.</div>
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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#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.MediaItem,com.google.android.exoplayer2.upstream.ParsingLoadable.Parser,com.google.android.exoplayer2.upstream.cache.CacheDataSource.Factory,java.util.concurrent.Executor)">
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<h4>SegmentDownloader</h4>
<pre>public&nbsp;SegmentDownloader&#8203;(<a href="../MediaItem.html" title="class in com.google.android.exoplayer2">MediaItem</a>&nbsp;mediaItem,
<a href="../upstream/ParsingLoadable.Parser.html" title="interface in com.google.android.exoplayer2.upstream">ParsingLoadable.Parser</a>&lt;<a href="SegmentDownloader.html" title="type parameter in SegmentDownloader">M</a>&gt;&nbsp;manifestParser,
<a href="../upstream/cache/CacheDataSource.Factory.html" title="class in com.google.android.exoplayer2.upstream.cache">CacheDataSource.Factory</a>&nbsp;cacheDataSourceFactory,
<a href="https://developer.android.com/reference/java/util/concurrent/Executor.html" title="class or interface in java.util.concurrent" class="externalLink" target="_top">Executor</a>&nbsp;executor)</pre>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>mediaItem</code> - The <a href="../MediaItem.html" title="class in com.google.android.exoplayer2"><code>MediaItem</code></a> to be downloaded.</dd>
<dd><code>manifestParser</code> - A parser for manifests belonging to the media to be downloaded.</dd>
<dd><code>cacheDataSourceFactory</code> - A <a href="../upstream/cache/CacheDataSource.Factory.html" title="class in com.google.android.exoplayer2.upstream.cache"><code>CacheDataSource.Factory</code></a> for the cache into which the
download will be written.</dd>
<dd><code>executor</code> - An <a href="https://developer.android.com/reference/java/util/concurrent/Executor.html" title="class or interface in java.util.concurrent" class="externalLink" target="_top"><code>Executor</code></a> used to make requests for the media being downloaded.
Providing an <a href="https://developer.android.com/reference/java/util/concurrent/Executor.html" title="class or interface in java.util.concurrent" class="externalLink" target="_top"><code>Executor</code></a> that uses multiple threads will speed up the download by
allowing parts of it to be executed in parallel.</dd>
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<h4>download</h4>
<pre class="methodSignature">public final&nbsp;void&nbsp;download&#8203;(@Nullable
<a href="Downloader.ProgressListener.html" title="interface in com.google.android.exoplayer2.offline">Downloader.ProgressListener</a>&nbsp;progressListener)
throws <a href="https://developer.android.com/reference/java/io/IOException.html" title="class or interface in java.io" class="externalLink" target="_top">IOException</a>,
<a href="https://developer.android.com/reference/java/lang/InterruptedException.html" title="class or interface in java.lang" class="externalLink" target="_top">InterruptedException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="Downloader.html#download(com.google.android.exoplayer2.offline.Downloader.ProgressListener)">Downloader</a></code></span></div>
<div class="block">Downloads the content.
<p>If downloading fails, this method can be called again to resume the download. It cannot be
called again after the download has been <a href="Downloader.html#cancel()"><code>canceled</code></a>.
<p>If downloading is canceled whilst this method is executing, then it is expected that it will
return reasonably quickly. However, there are no guarantees about how the method will return,
meaning that it can return without throwing, or by throwing any of its documented exceptions.
The caller must use its own knowledge about whether downloading has been canceled to determine
whether this is why the method has returned, rather than relying on the method returning in a
particular way.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="Downloader.html#download(com.google.android.exoplayer2.offline.Downloader.ProgressListener)">download</a></code>&nbsp;in interface&nbsp;<code><a href="Downloader.html" title="interface in com.google.android.exoplayer2.offline">Downloader</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>progressListener</code> - A listener to receive progress updates, or <code>null</code>.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://developer.android.com/reference/java/io/IOException.html" title="class or interface in java.io" class="externalLink" target="_top">IOException</a></code> - If the download failed to complete successfully.</dd>
<dd><code><a href="https://developer.android.com/reference/java/lang/InterruptedException.html" title="class or interface in java.lang" class="externalLink" target="_top">InterruptedException</a></code> - If the download was interrupted.</dd>
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<h4>cancel</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;cancel()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="Downloader.html#cancel()">Downloader</a></code></span></div>
<div class="block">Permanently cancels the downloading by this downloader. The caller should also interrupt the
downloading thread immediately after calling this method.
<p>Once canceled, <a href="Downloader.html#download(com.google.android.exoplayer2.offline.Downloader.ProgressListener)"><code>Downloader.download(com.google.android.exoplayer2.offline.Downloader.ProgressListener)</code></a> cannot be called again.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="Downloader.html#cancel()">cancel</a></code>&nbsp;in interface&nbsp;<code><a href="Downloader.html" title="interface in com.google.android.exoplayer2.offline">Downloader</a></code></dd>
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<h4>remove</h4>
<pre class="methodSignature">public final&nbsp;void&nbsp;remove()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="Downloader.html#remove()">Downloader</a></code></span></div>
<div class="block">Removes the content.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="Downloader.html#remove()">remove</a></code>&nbsp;in interface&nbsp;<code><a href="Downloader.html" title="interface in com.google.android.exoplayer2.offline">Downloader</a></code></dd>
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<h4>getManifest</h4>
<pre class="methodSignature">protected final&nbsp;<a href="SegmentDownloader.html" title="type parameter in SegmentDownloader">M</a>&nbsp;getManifest&#8203;(<a href="../upstream/DataSource.html" title="interface in com.google.android.exoplayer2.upstream">DataSource</a>&nbsp;dataSource,
<a href="../upstream/DataSpec.html" title="class in com.google.android.exoplayer2.upstream">DataSpec</a>&nbsp;dataSpec,
boolean&nbsp;removing)
throws <a href="https://developer.android.com/reference/java/lang/InterruptedException.html" title="class or interface in java.lang" class="externalLink" target="_top">InterruptedException</a>,
<a href="https://developer.android.com/reference/java/io/IOException.html" title="class or interface in java.io" class="externalLink" target="_top">IOException</a></pre>
<div class="block">Loads and parses a manifest.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dataSpec</code> - The manifest <a href="../upstream/DataSpec.html" title="class in com.google.android.exoplayer2.upstream"><code>DataSpec</code></a>.</dd>
<dd><code>removing</code> - Whether the manifest is being loaded as part of the download being removed.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The loaded manifest.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://developer.android.com/reference/java/lang/InterruptedException.html" title="class or interface in java.lang" class="externalLink" target="_top">InterruptedException</a></code> - If the thread on which the method is called is interrupted.</dd>
<dd><code><a href="https://developer.android.com/reference/java/io/IOException.html" title="class or interface in java.io" class="externalLink" target="_top">IOException</a></code> - If an error occurs during execution.</dd>
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<h4>execute</h4>
<pre class="methodSignature">protected final&nbsp;&lt;T&gt;&nbsp;T&nbsp;execute&#8203;(<a href="../util/RunnableFutureTask.html" title="class in com.google.android.exoplayer2.util">RunnableFutureTask</a>&lt;T,&#8203;?&gt;&nbsp;runnable,
boolean&nbsp;removing)
throws <a href="https://developer.android.com/reference/java/lang/InterruptedException.html" title="class or interface in java.lang" class="externalLink" target="_top">InterruptedException</a>,
<a href="https://developer.android.com/reference/java/io/IOException.html" title="class or interface in java.io" class="externalLink" target="_top">IOException</a></pre>
<div class="block">Executes the provided <a href="../util/RunnableFutureTask.html" title="class in com.google.android.exoplayer2.util"><code>RunnableFutureTask</code></a>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>runnable</code> - The <a href="../util/RunnableFutureTask.html" title="class in com.google.android.exoplayer2.util"><code>RunnableFutureTask</code></a> to execute.</dd>
<dd><code>removing</code> - Whether the execution is part of the download being removed.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The result.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://developer.android.com/reference/java/lang/InterruptedException.html" title="class or interface in java.lang" class="externalLink" target="_top">InterruptedException</a></code> - If the thread on which the method is called is interrupted.</dd>
<dd><code><a href="https://developer.android.com/reference/java/io/IOException.html" title="class or interface in java.io" class="externalLink" target="_top">IOException</a></code> - If an error occurs during execution.</dd>
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<h4>getSegments</h4>
<pre class="methodSignature">protected abstract&nbsp;<a href="https://developer.android.com/reference/java/util/List.html" title="class or interface in java.util" class="externalLink">List</a>&lt;<a href="SegmentDownloader.Segment.html" title="class in com.google.android.exoplayer2.offline">SegmentDownloader.Segment</a>&gt;&nbsp;getSegments&#8203;(<a href="../upstream/DataSource.html" title="interface in com.google.android.exoplayer2.upstream" target="_top">DataSource</a>&nbsp;dataSource,
<a href="SegmentDownloader.html" title="type parameter in SegmentDownloader">M</a>&nbsp;manifest,
boolean&nbsp;removing)
throws <a href="https://developer.android.com/reference/java/io/IOException.html" title="class or interface in java.io" class="externalLink" target="_top">IOException</a>,
<a href="https://developer.android.com/reference/java/lang/InterruptedException.html" title="class or interface in java.lang" class="externalLink" target="_top">InterruptedException</a></pre>
<div class="block">Returns a list of all downloadable <a href="SegmentDownloader.Segment.html" title="class in com.google.android.exoplayer2.offline"><code>SegmentDownloader.Segment</code></a>s for a given manifest. Any required data
should be loaded using <a href="#getManifest(com.google.android.exoplayer2.upstream.DataSource,com.google.android.exoplayer2.upstream.DataSpec,boolean)"><code>getManifest(com.google.android.exoplayer2.upstream.DataSource, com.google.android.exoplayer2.upstream.DataSpec, boolean)</code></a> or <a href="#execute(com.google.android.exoplayer2.util.RunnableFutureTask,boolean)"><code>execute(com.google.android.exoplayer2.util.RunnableFutureTask&lt;T, ?&gt;, boolean)</code></a>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dataSource</code> - The <a href="../upstream/DataSource.html" title="interface in com.google.android.exoplayer2.upstream"><code>DataSource</code></a> through which to load any required data.</dd>
<dd><code>manifest</code> - The manifest containing the segments.</dd>
<dd><code>removing</code> - Whether the segments are being obtained as part of a removal. If true then a
partial segment list is returned in the case that a load error prevents all segments from
being listed. If false then an <a href="https://developer.android.com/reference/java/io/IOException.html" title="class or interface in java.io" class="externalLink" target="_top"><code>IOException</code></a> will be thrown in this case.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The list of downloadable <a href="SegmentDownloader.Segment.html" title="class in com.google.android.exoplayer2.offline"><code>SegmentDownloader.Segment</code></a>s.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://developer.android.com/reference/java/io/IOException.html" title="class or interface in java.io" class="externalLink" target="_top">IOException</a></code> - Thrown if <code>allowPartialIndex</code> is false and an execution error occurs,
or if the media is not in a form that allows for its segments to be listed.</dd>
<dd><code><a href="https://developer.android.com/reference/java/lang/InterruptedException.html" title="class or interface in java.lang" class="externalLink" target="_top">InterruptedException</a></code></dd>
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<h4>getCompressibleDataSpec</h4>
<pre class="methodSignature">protected static&nbsp;<a href="../upstream/DataSpec.html" title="class in com.google.android.exoplayer2.upstream">DataSpec</a>&nbsp;getCompressibleDataSpec&#8203;(<a href="https://developer.android.com/reference/android/net/Uri.html" title="class or interface in android.net" class="externalLink" target="_top">Uri</a>&nbsp;uri)</pre>
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