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577 lines
30 KiB
HTML
577 lines
30 KiB
HTML
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<title>HttpDataSource (ExoPlayer library)</title>
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<div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">com.google.android.exoplayer2.upstream</a></div>
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<h2 title="Interface HttpDataSource" class="title">Interface HttpDataSource</h2>
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<dt>All Superinterfaces:</dt>
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<dd><code><a href="DataReader.html" title="interface in com.google.android.exoplayer2.upstream">DataReader</a></code>, <code><a href="DataSource.html" title="interface in com.google.android.exoplayer2.upstream">DataSource</a></code></dd>
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<dl>
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<dt>All Known Implementing Classes:</dt>
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<dd><code><a href="../ext/cronet/CronetDataSource.html" title="class in com.google.android.exoplayer2.ext.cronet">CronetDataSource</a></code>, <code><a href="DefaultHttpDataSource.html" title="class in com.google.android.exoplayer2.upstream">DefaultHttpDataSource</a></code>, <code><a href="../ext/okhttp/OkHttpDataSource.html" title="class in com.google.android.exoplayer2.ext.okhttp">OkHttpDataSource</a></code></dd>
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</dl>
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<hr>
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<pre>public interface <span class="typeNameLabel">HttpDataSource</span>
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extends <a href="DataSource.html" title="interface in com.google.android.exoplayer2.upstream">DataSource</a></pre>
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<div class="block">An HTTP <a href="DataSource.html" title="interface in com.google.android.exoplayer2.upstream"><code>DataSource</code></a>.</div>
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<h3>Nested Class Summary</h3>
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<table class="memberSummary">
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<caption><span>Nested Classes</span><span class="tabEnd"> </span></caption>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colSecond" scope="col">Interface</th>
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<th class="colLast" scope="col">Description</th>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>static class </code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="HttpDataSource.BaseFactory.html" title="class in com.google.android.exoplayer2.upstream">HttpDataSource.BaseFactory</a></span></code></th>
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<td class="colLast">
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<div class="block">Base implementation of <a href="HttpDataSource.Factory.html" title="interface in com.google.android.exoplayer2.upstream"><code>HttpDataSource.Factory</code></a> that sets default request properties.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>static class </code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="HttpDataSource.CleartextNotPermittedException.html" title="class in com.google.android.exoplayer2.upstream">HttpDataSource.CleartextNotPermittedException</a></span></code></th>
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<td class="colLast">
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<div class="block">Thrown when cleartext HTTP traffic is not permitted.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>static interface </code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="HttpDataSource.Factory.html" title="interface in com.google.android.exoplayer2.upstream">HttpDataSource.Factory</a></span></code></th>
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<td class="colLast">
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<div class="block">A factory for <a href="HttpDataSource.html" title="interface in com.google.android.exoplayer2.upstream"><code>HttpDataSource</code></a> instances.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>static class </code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="HttpDataSource.HttpDataSourceException.html" title="class in com.google.android.exoplayer2.upstream">HttpDataSource.HttpDataSourceException</a></span></code></th>
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<td class="colLast">
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<div class="block">Thrown when an error is encountered when trying to read from a <a href="HttpDataSource.html" title="interface in com.google.android.exoplayer2.upstream"><code>HttpDataSource</code></a>.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>static class </code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="HttpDataSource.InvalidContentTypeException.html" title="class in com.google.android.exoplayer2.upstream">HttpDataSource.InvalidContentTypeException</a></span></code></th>
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<td class="colLast">
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<div class="block">Thrown when the content type is invalid.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>static class </code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="HttpDataSource.InvalidResponseCodeException.html" title="class in com.google.android.exoplayer2.upstream">HttpDataSource.InvalidResponseCodeException</a></span></code></th>
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<td class="colLast">
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<div class="block">Thrown when an attempt to open a connection results in a response code not in the 2xx range.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>static class </code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="HttpDataSource.RequestProperties.html" title="class in com.google.android.exoplayer2.upstream">HttpDataSource.RequestProperties</a></span></code></th>
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<td class="colLast">
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<div class="block">Stores HTTP request properties (aka HTTP headers) and provides methods to modify the headers
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in a thread safe way to avoid the potential of creating snapshots of an inconsistent or
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unintended state.</div>
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</td>
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</tr>
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</table>
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</li>
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</ul>
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</section>
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<!-- =========== FIELD SUMMARY =========== -->
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<section role="region">
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<h3>Field Summary</h3>
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<table class="memberSummary">
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<caption><span>Fields</span><span class="tabEnd"> </span></caption>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colSecond" scope="col">Field</th>
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<th class="colLast" scope="col">Description</th>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>static <a href="https://guava.dev/releases/27.1-android/api/docs/com/google/common/base/Predicate.html?is-external=true" title="class or interface in com.google.common.base" class="externalLink">Predicate</a><<a href="https://developer.android.com/reference/java/lang/String.html" title="class or interface in java.lang" class="externalLink" target="_top">String</a>></code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#REJECT_PAYWALL_TYPES">REJECT_PAYWALL_TYPES</a></span></code></th>
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<td class="colLast">
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<div class="block">A <a href="https://guava.dev/releases/27.1-android/api/docs/com/google/common/base/Predicate.html?is-external=true" title="class or interface in com.google.common.base" class="externalLink"><code>Predicate</code></a> that rejects content types often used for pay-walls.</div>
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</td>
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</tr>
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</table>
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</li>
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</ul>
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</section>
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<!-- ========== METHOD SUMMARY =========== -->
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<h3>Method Summary</h3>
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<table class="memberSummary">
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </span></span></caption>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colSecond" scope="col">Method</th>
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<th class="colLast" scope="col">Description</th>
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#clearAllRequestProperties()">clearAllRequestProperties</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Clears all request headers that were set by <a href="#setRequestProperty(java.lang.String,java.lang.String)"><code>setRequestProperty(String, String)</code></a>.</div>
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</td>
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</tr>
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<tr id="i1" class="rowColor">
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#clearRequestProperty(java.lang.String)">clearRequestProperty</a></span>​(<a href="https://developer.android.com/reference/java/lang/String.html" title="class or interface in java.lang" class="externalLink" target="_top">String</a> name)</code></th>
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<td class="colLast">
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<div class="block">Clears the value of a request header.</div>
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</td>
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</tr>
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<tr id="i2" class="altColor">
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#close()">close</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Closes the source.</div>
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</td>
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</tr>
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<tr id="i3" class="rowColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getResponseCode()">getResponseCode</a></span>()</code></th>
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<td class="colLast">
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<div class="block">When the source is open, returns the HTTP response status code associated with the last <a href="#open(com.google.android.exoplayer2.upstream.DataSpec)"><code>open(com.google.android.exoplayer2.upstream.DataSpec)</code></a> call.</div>
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</td>
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</tr>
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<tr id="i4" class="altColor">
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<td class="colFirst"><code><a href="https://developer.android.com/reference/java/util/Map.html" title="class or interface in java.util" class="externalLink">Map</a><<a href="https://developer.android.com/reference/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>,​<a href="https://developer.android.com/reference/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a><<a href="https://developer.android.com/reference/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_top">String</a>>></code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getResponseHeaders()">getResponseHeaders</a></span>()</code></th>
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<td class="colLast">
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<div class="block">When the source is open, returns the response headers associated with the last <a href="DataSource.html#open(com.google.android.exoplayer2.upstream.DataSpec)"><code>DataSource.open(com.google.android.exoplayer2.upstream.DataSpec)</code></a>
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call.</div>
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</td>
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</tr>
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<tr id="i5" class="rowColor">
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<td class="colFirst"><code>long</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#open(com.google.android.exoplayer2.upstream.DataSpec)">open</a></span>​(<a href="DataSpec.html" title="class in com.google.android.exoplayer2.upstream">DataSpec</a> dataSpec)</code></th>
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<td class="colLast">
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<div class="block">Opens the source to read the specified data.</div>
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</td>
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</tr>
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<tr id="i6" class="altColor">
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<td class="colFirst"><code>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#read(byte%5B%5D,int,int)">read</a></span>​(byte[] buffer,
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int offset,
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int readLength)</code></th>
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<td class="colLast">
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<div class="block">Reads up to <code>length</code> bytes of data from the input.</div>
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</td>
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</tr>
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<tr id="i7" class="rowColor">
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setRequestProperty(java.lang.String,java.lang.String)">setRequestProperty</a></span>​(<a href="https://developer.android.com/reference/java/lang/String.html" title="class or interface in java.lang" class="externalLink" target="_top">String</a> name,
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<a href="https://developer.android.com/reference/java/lang/String.html" title="class or interface in java.lang" class="externalLink" target="_top">String</a> value)</code></th>
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<td class="colLast">
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<div class="block">Sets the value of a request header.</div>
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</td>
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</tr>
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</table>
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<li class="blockList"><a id="methods.inherited.from.class.com.google.android.exoplayer2.upstream.DataSource">
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</a>
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<h3>Methods inherited from interface com.google.android.exoplayer2.upstream.<a href="DataSource.html" title="interface in com.google.android.exoplayer2.upstream">DataSource</a></h3>
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<code><a href="DataSource.html#addTransferListener(com.google.android.exoplayer2.upstream.TransferListener)">addTransferListener</a>, <a href="DataSource.html#getUri()">getUri</a></code></li>
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</ul>
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</li>
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</ul>
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</section>
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</li>
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</ul>
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</div>
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<div class="details">
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<!-- ============ FIELD DETAIL =========== -->
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</a>
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<h3>Field Detail</h3>
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<a id="REJECT_PAYWALL_TYPES">
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</a>
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<h4>REJECT_PAYWALL_TYPES</h4>
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<pre>static final <a href="https://guava.dev/releases/27.1-android/api/docs/com/google/common/base/Predicate.html?is-external=true" title="class or interface in com.google.common.base" class="externalLink">Predicate</a><<a href="https://developer.android.com/reference/java/lang/String.html" title="class or interface in java.lang" class="externalLink" target="_top">String</a>> REJECT_PAYWALL_TYPES</pre>
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<div class="block">A <a href="https://guava.dev/releases/27.1-android/api/docs/com/google/common/base/Predicate.html?is-external=true" title="class or interface in com.google.common.base" class="externalLink"><code>Predicate</code></a> that rejects content types often used for pay-walls.</div>
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<h3>Method Detail</h3>
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<a id="open(com.google.android.exoplayer2.upstream.DataSpec)">
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<h4>open</h4>
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<pre class="methodSignature">long open​(<a href="DataSpec.html" title="class in com.google.android.exoplayer2.upstream">DataSpec</a> dataSpec)
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throws <a href="HttpDataSource.HttpDataSourceException.html" title="class in com.google.android.exoplayer2.upstream">HttpDataSource.HttpDataSourceException</a></pre>
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<div class="block">Opens the source to read the specified data.
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<p>Note: <a href="HttpDataSource.html" title="interface in com.google.android.exoplayer2.upstream"><code>HttpDataSource</code></a> implementations are advised to set request headers passed via
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(in order of decreasing priority) the <code>dataSpec</code>, <a href="#setRequestProperty(java.lang.String,java.lang.String)"><code>setRequestProperty(java.lang.String, java.lang.String)</code></a> and the
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default parameters set in the <a href="HttpDataSource.Factory.html" title="interface in com.google.android.exoplayer2.upstream"><code>HttpDataSource.Factory</code></a>.</div>
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<dl>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
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<dd><code><a href="DataSource.html#open(com.google.android.exoplayer2.upstream.DataSpec)">open</a></code> in interface <code><a href="DataSource.html" title="interface in com.google.android.exoplayer2.upstream">DataSource</a></code></dd>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>dataSpec</code> - Defines the data to be read.</dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>The number of bytes that can be read from the opened source. For unbounded requests
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(i.e., requests where <a href="DataSpec.html#length"><code>DataSpec.length</code></a> equals <a href="../C.html#LENGTH_UNSET"><code>C.LENGTH_UNSET</code></a>) this value is
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the resolved length of the request, or <a href="../C.html#LENGTH_UNSET"><code>C.LENGTH_UNSET</code></a> if the length is still
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unresolved. For all other requests, the value returned will be equal to the request's
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<a href="DataSpec.html#length"><code>DataSpec.length</code></a>.</dd>
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<dt><span class="throwsLabel">Throws:</span></dt>
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<dd><code><a href="HttpDataSource.HttpDataSourceException.html" title="class in com.google.android.exoplayer2.upstream">HttpDataSource.HttpDataSourceException</a></code></dd>
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</dl>
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<h4>close</h4>
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<pre class="methodSignature">void close()
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throws <a href="HttpDataSource.HttpDataSourceException.html" title="class in com.google.android.exoplayer2.upstream">HttpDataSource.HttpDataSourceException</a></pre>
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<div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="DataSource.html#close()">DataSource</a></code></span></div>
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<div class="block">Closes the source. This method must be called even if the corresponding call to <a href="DataSource.html#open(com.google.android.exoplayer2.upstream.DataSpec)"><code>DataSource.open(DataSpec)</code></a> threw 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>.</div>
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<dl>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
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<dd><code><a href="DataSource.html#close()">close</a></code> in interface <code><a href="DataSource.html" title="interface in com.google.android.exoplayer2.upstream">DataSource</a></code></dd>
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<dt><span class="throwsLabel">Throws:</span></dt>
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<dd><code><a href="HttpDataSource.HttpDataSourceException.html" title="class in com.google.android.exoplayer2.upstream">HttpDataSource.HttpDataSourceException</a></code></dd>
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</dl>
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</li>
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</ul>
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<a id="read(byte[],int,int)">
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<h4>read</h4>
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<pre class="methodSignature">int read​(byte[] buffer,
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int offset,
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int readLength)
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throws <a href="HttpDataSource.HttpDataSourceException.html" title="class in com.google.android.exoplayer2.upstream">HttpDataSource.HttpDataSourceException</a></pre>
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<div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="DataReader.html#read(byte%5B%5D,int,int)">DataReader</a></code></span></div>
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<div class="block">Reads up to <code>length</code> bytes of data from the input.
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<p>If <code>readLength</code> is zero then 0 is returned. Otherwise, if no data is available because
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the end of the opened range has been reached, then <a href="../C.html#RESULT_END_OF_INPUT"><code>C.RESULT_END_OF_INPUT</code></a> is returned.
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Otherwise, the call will block until at least one byte of data has been read and the number of
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bytes read is returned.</div>
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<dl>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
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<dd><code><a href="DataReader.html#read(byte%5B%5D,int,int)">read</a></code> in interface <code><a href="DataReader.html" title="interface in com.google.android.exoplayer2.upstream">DataReader</a></code></dd>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>buffer</code> - A target array into which data should be written.</dd>
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<dd><code>offset</code> - The offset into the target array at which to write.</dd>
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<dd><code>readLength</code> - The maximum number of bytes to read from the input.</dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>The number of bytes read, or <a href="../C.html#RESULT_END_OF_INPUT"><code>C.RESULT_END_OF_INPUT</code></a> if the input has ended. This
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may be less than <code>length</code> because the end of the input (or available data) was
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reached, the method was interrupted, or the operation was aborted early for another reason.</dd>
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<dt><span class="throwsLabel">Throws:</span></dt>
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<dd><code><a href="HttpDataSource.HttpDataSourceException.html" title="class in com.google.android.exoplayer2.upstream">HttpDataSource.HttpDataSourceException</a></code></dd>
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</dl>
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</li>
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</ul>
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<a id="setRequestProperty(java.lang.String,java.lang.String)">
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<h4>setRequestProperty</h4>
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<pre class="methodSignature">void setRequestProperty​(<a href="https://developer.android.com/reference/java/lang/String.html" title="class or interface in java.lang" class="externalLink" target="_top">String</a> name,
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<a href="https://developer.android.com/reference/java/lang/String.html" title="class or interface in java.lang" class="externalLink" target="_top">String</a> value)</pre>
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<div class="block">Sets the value of a request header. The value will be used for subsequent connections
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established by the source.
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<p>Note: If the same header is set as a default parameter in the <a href="HttpDataSource.Factory.html" title="interface in com.google.android.exoplayer2.upstream"><code>HttpDataSource.Factory</code></a>, then the
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header value set with this method should be preferred when connecting with the data source. See
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<a href="#open(com.google.android.exoplayer2.upstream.DataSpec)"><code>open(com.google.android.exoplayer2.upstream.DataSpec)</code></a>.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>name</code> - The name of the header field.</dd>
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<dd><code>value</code> - The value of the field.</dd>
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</dl>
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</li>
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</ul>
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<a id="clearRequestProperty(java.lang.String)">
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<h4>clearRequestProperty</h4>
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<pre class="methodSignature">void clearRequestProperty​(<a href="https://developer.android.com/reference/java/lang/String.html" title="class or interface in java.lang" class="externalLink" target="_top">String</a> name)</pre>
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<div class="block">Clears the value of a request header. The change will apply to subsequent connections
|
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established by the source.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>name</code> - The name of the header field.</dd>
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</dl>
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</li>
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</ul>
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<a id="clearAllRequestProperties()">
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<h4>clearAllRequestProperties</h4>
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<pre class="methodSignature">void clearAllRequestProperties()</pre>
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<div class="block">Clears all request headers that were set by <a href="#setRequestProperty(java.lang.String,java.lang.String)"><code>setRequestProperty(String, String)</code></a>.</div>
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</ul>
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<a id="getResponseCode()">
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<h4>getResponseCode</h4>
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<pre class="methodSignature">int getResponseCode()</pre>
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<div class="block">When the source is open, returns the HTTP response status code associated with the last <a href="#open(com.google.android.exoplayer2.upstream.DataSpec)"><code>open(com.google.android.exoplayer2.upstream.DataSpec)</code></a> call. Otherwise, returns a negative value.</div>
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<a id="getResponseHeaders()">
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<h4>getResponseHeaders</h4>
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<pre class="methodSignature"><a href="https://developer.android.com/reference/java/util/Map.html" title="class or interface in java.util" class="externalLink">Map</a><<a href="https://developer.android.com/reference/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>,​<a href="https://developer.android.com/reference/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a><<a href="https://developer.android.com/reference/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_top">String</a>>> getResponseHeaders()</pre>
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<div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="DataSource.html#getResponseHeaders()">DataSource</a></code></span></div>
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<div class="block">When the source is open, returns the response headers associated with the last <a href="DataSource.html#open(com.google.android.exoplayer2.upstream.DataSpec)"><code>DataSource.open(com.google.android.exoplayer2.upstream.DataSpec)</code></a>
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call. Otherwise, returns an empty map.
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<p>Key look-up in the returned map is case-insensitive.</div>
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<dl>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
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<dd><code><a href="DataSource.html#getResponseHeaders()">getResponseHeaders</a></code> in interface <code><a href="DataSource.html" title="interface in com.google.android.exoplayer2.upstream">DataSource</a></code></dd>
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