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<h2 title="Interface DrmSessionManager" class="title">Interface DrmSessionManager</h2>
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<dd><code><a href="../../../../../com/google/android/exoplayer2/drm/DefaultDrmSessionManager.html" title="class in com.google.android.exoplayer2.drm">DefaultDrmSessionManager</a></code></dd>
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<pre>public interface <span class="typeNameLabel">DrmSessionManager</span></pre>
<div class="block">Manages a DRM session.</div>
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<td class="colFirst"><code>static <a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html" title="interface in com.google.android.exoplayer2.drm">DrmSessionManager</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html#DRM_UNSUPPORTED">DRM_UNSUPPORTED</a></span></code></th>
<td class="colLast">
<div class="block">An instance that supports no DRM schemes.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html" title="interface in com.google.android.exoplayer2.drm">DrmSessionManager</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html#DUMMY">DUMMY</a></span></code></th>
<td class="colLast">
<div class="block"><span class="deprecatedLabel">Deprecated.</span>
<div class="deprecationComment">Use <a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html#DRM_UNSUPPORTED"><code>DRM_UNSUPPORTED</code></a>.</div>
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<td class="colFirst"><code><a href="../../../../../com/google/android/exoplayer2/drm/DrmSession.html" title="interface in com.google.android.exoplayer2.drm">DrmSession</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html#acquireSession-android.os.Looper-com.google.android.exoplayer2.drm.DrmSessionEventListener.EventDispatcher-com.google.android.exoplayer2.Format-">acquireSession</a></span>&#8203;(<a href="https://developer.android.com/reference/android/os/Looper.html" title="class or interface in android.os" class="externalLink" target="_top">Looper</a>&nbsp;playbackLooper,
<a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionEventListener.EventDispatcher.html" title="class in com.google.android.exoplayer2.drm">DrmSessionEventListener.EventDispatcher</a>&nbsp;eventDispatcher,
<a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2">Format</a>&nbsp;format)</code></th>
<td class="colLast">
<div class="block">Returns a <a href="../../../../../com/google/android/exoplayer2/drm/DrmSession.html" title="interface in com.google.android.exoplayer2.drm"><code>DrmSession</code></a> for the specified <a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2"><code>Format</code></a>, with an incremented reference
count.</div>
</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html" title="interface in com.google.android.exoplayer2.drm">DrmSessionManager</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html#getDummyDrmSessionManager--">getDummyDrmSessionManager</a></span>()</code></th>
<td class="colLast">
<div class="block"><span class="deprecatedLabel">Deprecated.</span>
<div class="deprecationComment">Use <a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html#DRM_UNSUPPORTED"><code>DRM_UNSUPPORTED</code></a>.</div>
</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="https://developer.android.com/reference/java/lang/Class.html" title="class or interface in java.lang" class="externalLink">Class</a>&lt;? extends <a href="../../../../../com/google/android/exoplayer2/drm/ExoMediaCrypto.html" title="interface in com.google.android.exoplayer2.drm" target="_top">ExoMediaCrypto</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html#getExoMediaCryptoType-com.google.android.exoplayer2.Format-">getExoMediaCryptoType</a></span>&#8203;(<a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2">Format</a>&nbsp;format)</code></th>
<td class="colLast">
<div class="block">Returns the <a href="../../../../../com/google/android/exoplayer2/drm/ExoMediaCrypto.html" title="interface in com.google.android.exoplayer2.drm"><code>ExoMediaCrypto</code></a> type associated to sessions acquired for the given <a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2"><code>Format</code></a>.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>default void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html#prepare--">prepare</a></span>()</code></th>
<td class="colLast">
<div class="block">Acquires any required resources.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>default void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html#release--">release</a></span>()</code></th>
<td class="colLast">
<div class="block">Releases any acquired resources.</div>
</td>
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<pre>static final&nbsp;<a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html" title="interface in com.google.android.exoplayer2.drm">DrmSessionManager</a> DRM_UNSUPPORTED</pre>
<div class="block">An instance that supports no DRM schemes.</div>
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<h4>DUMMY</h4>
<pre><a href="https://developer.android.com/reference/java/lang/Deprecated.html" title="class or interface in java.lang" class="externalLink" target="_top">@Deprecated</a>
static final&nbsp;<a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html" title="interface in com.google.android.exoplayer2.drm">DrmSessionManager</a> DUMMY</pre>
<div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span>
<div class="deprecationComment">Use <a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html#DRM_UNSUPPORTED"><code>DRM_UNSUPPORTED</code></a>.</div>
</div>
<div class="block">An instance that supports no DRM schemes.</div>
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<h4>getDummyDrmSessionManager</h4>
<pre><a href="https://developer.android.com/reference/java/lang/Deprecated.html" title="class or interface in java.lang" class="externalLink" target="_top">@Deprecated</a>
static&nbsp;<a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html" title="interface in com.google.android.exoplayer2.drm">DrmSessionManager</a>&nbsp;getDummyDrmSessionManager()</pre>
<div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span>
<div class="deprecationComment">Use <a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html#DRM_UNSUPPORTED"><code>DRM_UNSUPPORTED</code></a>.</div>
</div>
<div class="block">Returns <a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html#DRM_UNSUPPORTED"><code>DRM_UNSUPPORTED</code></a>.</div>
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<h4>prepare</h4>
<pre>default&nbsp;void&nbsp;prepare()</pre>
<div class="block">Acquires any required resources.
<p><a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html#release--"><code>release()</code></a> must be called to ensure the acquired resources are released. After
releasing, an instance may be re-prepared.</div>
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<h4>release</h4>
<pre>default&nbsp;void&nbsp;release()</pre>
<div class="block">Releases any acquired resources.</div>
</li>
</ul>
<a name="acquireSession-android.os.Looper-com.google.android.exoplayer2.drm.DrmSessionEventListener.EventDispatcher-com.google.android.exoplayer2.Format-">
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<h4>acquireSession</h4>
<pre>@Nullable
<a href="../../../../../com/google/android/exoplayer2/drm/DrmSession.html" title="interface in com.google.android.exoplayer2.drm">DrmSession</a>&nbsp;acquireSession&#8203;(<a href="https://developer.android.com/reference/android/os/Looper.html" title="class or interface in android.os" class="externalLink" target="_top">Looper</a>&nbsp;playbackLooper,
@Nullable
<a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionEventListener.EventDispatcher.html" title="class in com.google.android.exoplayer2.drm">DrmSessionEventListener.EventDispatcher</a>&nbsp;eventDispatcher,
<a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2">Format</a>&nbsp;format)</pre>
<div class="block">Returns a <a href="../../../../../com/google/android/exoplayer2/drm/DrmSession.html" title="interface in com.google.android.exoplayer2.drm"><code>DrmSession</code></a> for the specified <a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2"><code>Format</code></a>, with an incremented reference
count. May return null if the <a href="../../../../../com/google/android/exoplayer2/Format.html#drmInitData"><code>Format.drmInitData</code></a> is null and the DRM session manager is
not configured to attach a <a href="../../../../../com/google/android/exoplayer2/drm/DrmSession.html" title="interface in com.google.android.exoplayer2.drm"><code>DrmSession</code></a> to clear content. When the caller no longer needs
to use a returned <a href="../../../../../com/google/android/exoplayer2/drm/DrmSession.html" title="interface in com.google.android.exoplayer2.drm"><code>DrmSession</code></a>, it must call <a href="../../../../../com/google/android/exoplayer2/drm/DrmSession.html#release-com.google.android.exoplayer2.drm.DrmSessionEventListener.EventDispatcher-"><code>DrmSession.release(DrmSessionEventListener.EventDispatcher)</code></a> to decrement the reference count.
<p>If the provided <a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2"><code>Format</code></a> contains a null <a href="../../../../../com/google/android/exoplayer2/Format.html#drmInitData"><code>Format.drmInitData</code></a>, the returned
<a href="../../../../../com/google/android/exoplayer2/drm/DrmSession.html" title="interface in com.google.android.exoplayer2.drm"><code>DrmSession</code></a> (if not null) will be a placeholder session which does not execute key
requests, and cannot be used to handle encrypted content. However, a placeholder session may be
used to configure secure decoders for playback of clear content periods, which can reduce the
cost of transitioning between clear and encrypted content.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>playbackLooper</code> - The looper associated with the media playback thread.</dd>
<dd><code>eventDispatcher</code> - The <a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionEventListener.EventDispatcher.html" title="class in com.google.android.exoplayer2.drm"><code>DrmSessionEventListener.EventDispatcher</code></a> used to distribute
events, and passed on to <a href="../../../../../com/google/android/exoplayer2/drm/DrmSession.html#acquire-com.google.android.exoplayer2.drm.DrmSessionEventListener.EventDispatcher-"><code>DrmSession.acquire(DrmSessionEventListener.EventDispatcher)</code></a>.</dd>
<dd><code>format</code> - The <a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2"><code>Format</code></a> for which to acquire a <a href="../../../../../com/google/android/exoplayer2/drm/DrmSession.html" title="interface in com.google.android.exoplayer2.drm"><code>DrmSession</code></a>.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The DRM session. May be null if the given <a href="../../../../../com/google/android/exoplayer2/Format.html#drmInitData"><code>Format.drmInitData</code></a> is null.</dd>
</dl>
</li>
</ul>
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<h4>getExoMediaCryptoType</h4>
<pre>@Nullable
<a href="https://developer.android.com/reference/java/lang/Class.html" title="class or interface in java.lang" class="externalLink">Class</a>&lt;? extends <a href="../../../../../com/google/android/exoplayer2/drm/ExoMediaCrypto.html" title="interface in com.google.android.exoplayer2.drm">ExoMediaCrypto</a>&gt;&nbsp;getExoMediaCryptoType&#8203;(<a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2" target="_top">Format</a>&nbsp;format)</pre>
<div class="block">Returns the <a href="../../../../../com/google/android/exoplayer2/drm/ExoMediaCrypto.html" title="interface in com.google.android.exoplayer2.drm"><code>ExoMediaCrypto</code></a> type associated to sessions acquired for the given <a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2"><code>Format</code></a>. Returns the <a href="../../../../../com/google/android/exoplayer2/drm/UnsupportedMediaCrypto.html" title="class in com.google.android.exoplayer2.drm"><code>UnsupportedMediaCrypto</code></a> type if this DRM session manager does not
support any of the DRM schemes defined in the given <a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2"><code>Format</code></a>. Returns null if <a href="../../../../../com/google/android/exoplayer2/Format.html#drmInitData"><code>Format.drmInitData</code></a> is null and <a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html#acquireSession-android.os.Looper-com.google.android.exoplayer2.drm.DrmSessionEventListener.EventDispatcher-com.google.android.exoplayer2.Format-"><code>acquireSession(android.os.Looper, com.google.android.exoplayer2.drm.DrmSessionEventListener.EventDispatcher, com.google.android.exoplayer2.Format)</code></a> would return null for the given <a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2"><code>Format</code></a>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>format</code> - The <a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2"><code>Format</code></a> for which to return the <a href="../../../../../com/google/android/exoplayer2/drm/ExoMediaCrypto.html" title="interface in com.google.android.exoplayer2.drm"><code>ExoMediaCrypto</code></a> type.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The <a href="../../../../../com/google/android/exoplayer2/drm/ExoMediaCrypto.html" title="interface in com.google.android.exoplayer2.drm"><code>ExoMediaCrypto</code></a> type associated to sessions acquired using the given <a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2"><code>Format</code></a>, or <a href="../../../../../com/google/android/exoplayer2/drm/UnsupportedMediaCrypto.html" title="class in com.google.android.exoplayer2.drm"><code>UnsupportedMediaCrypto</code></a> if this DRM session manager does not support any
of the DRM schemes defined in the given <a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2"><code>Format</code></a>. May be null if <a href="../../../../../com/google/android/exoplayer2/Format.html#drmInitData"><code>Format.drmInitData</code></a> is null and <a href="../../../../../com/google/android/exoplayer2/drm/DrmSessionManager.html#acquireSession-android.os.Looper-com.google.android.exoplayer2.drm.DrmSessionEventListener.EventDispatcher-com.google.android.exoplayer2.Format-"><code>acquireSession(android.os.Looper, com.google.android.exoplayer2.drm.DrmSessionEventListener.EventDispatcher, com.google.android.exoplayer2.Format)</code></a> would return null for the given
<a href="../../../../../com/google/android/exoplayer2/Format.html" title="class in com.google.android.exoplayer2"><code>Format</code></a>.</dd>
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