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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">com.google.android.exoplayer2.mediacodec</a></div>
<h2 title="Class MediaCodecUtil" class="title">Class MediaCodecUtil</h2>
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<ul class="inheritance">
<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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<pre>public final class <span class="typeNameLabel">MediaCodecUtil</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></pre>
<div class="block">A utility class for querying the available codecs.</div>
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<td class="colFirst"><code>static class&nbsp;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="MediaCodecUtil.DecoderQueryException.html" title="class in com.google.android.exoplayer2.mediacodec">MediaCodecUtil.DecoderQueryException</a></span></code></th>
<td class="colLast">
<div class="block">Thrown when an error occurs querying the device for its underlying media capabilities.</div>
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<td class="colFirst"><code>static void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#clearDecoderInfoCache()">clearDecoderInfoCache</a></span>()</code></th>
<td class="colLast">
<div class="block">Clears the codec cache.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>static <a href="https://developer.android.com/reference/android/util/Pair.html" title="class or interface in android.util" class="externalLink">Pair</a>&lt;<a href="https://developer.android.com/reference/java/lang/Integer.html?is-external=true" title="class or interface in java.lang" class="externalLink">Integer</a>,&#8203;<a href="https://developer.android.com/reference/java/lang/Integer.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_top">Integer</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getCodecProfileAndLevel(com.google.android.exoplayer2.Format)">getCodecProfileAndLevel</a></span>&#8203;(<a href="../Format.html" title="class in com.google.android.exoplayer2">Format</a>&nbsp;format)</code></th>
<td class="colLast">
<div class="block">Returns profile and level (as defined by <a href="https://developer.android.com/reference/android/media/MediaCodecInfo.CodecProfileLevel.html" title="class or interface in android.media" class="externalLink" target="_top"><code>MediaCodecInfo.CodecProfileLevel</code></a>) corresponding to the codec
description string (as defined by RFC 6381) of the given format.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>static <a href="MediaCodecInfo.html" title="class in com.google.android.exoplayer2.mediacodec">MediaCodecInfo</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getDecoderInfo(java.lang.String,boolean,boolean)">getDecoderInfo</a></span>&#8203;(<a href="https://developer.android.com/reference/java/lang/String.html" title="class or interface in java.lang" class="externalLink" target="_top">String</a>&nbsp;mimeType,
boolean&nbsp;secure,
boolean&nbsp;tunneling)</code></th>
<td class="colLast">
<div class="block">Returns information about the preferred decoder for a given mime type.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>static <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="MediaCodecInfo.html" title="class in com.google.android.exoplayer2.mediacodec" target="_top">MediaCodecInfo</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getDecoderInfos(java.lang.String,boolean,boolean)">getDecoderInfos</a></span>&#8203;(<a href="https://developer.android.com/reference/java/lang/String.html" title="class or interface in java.lang" class="externalLink" target="_top">String</a>&nbsp;mimeType,
boolean&nbsp;secure,
boolean&nbsp;tunneling)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>static <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="MediaCodecInfo.html" title="class in com.google.android.exoplayer2.mediacodec" target="_top">MediaCodecInfo</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getDecoderInfosSortedByFormatSupport(java.util.List,com.google.android.exoplayer2.Format)">getDecoderInfosSortedByFormatSupport</a></span>&#8203;(<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="MediaCodecInfo.html" title="class in com.google.android.exoplayer2.mediacodec" target="_top">MediaCodecInfo</a>&gt;&nbsp;decoderInfos,
<a href="../Format.html" title="class in com.google.android.exoplayer2">Format</a>&nbsp;format)</code></th>
<td class="colLast">
<div class="block">Returns a copy of the provided decoder list sorted such that decoders with format support are
listed first.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>static <a href="MediaCodecInfo.html" title="class in com.google.android.exoplayer2.mediacodec">MediaCodecInfo</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getDecryptOnlyDecoderInfo()">getDecryptOnlyDecoderInfo</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns information about a decoder that will only decrypt data, without decoding it.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#maxH264DecodableFrameSize()">maxH264DecodableFrameSize</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns the maximum frame size supported by the default H264 decoder.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#warmDecoderInfoCache(java.lang.String,boolean,boolean)">warmDecoderInfoCache</a></span>&#8203;(<a href="https://developer.android.com/reference/java/lang/String.html" title="class or interface in java.lang" class="externalLink" target="_top">String</a>&nbsp;mimeType,
boolean&nbsp;secure,
boolean&nbsp;tunneling)</code></th>
<td class="colLast">
<div class="block">Optional call to warm the codec cache for a given mime type.</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>warmDecoderInfoCache</h4>
<pre class="methodSignature">public static&nbsp;void&nbsp;warmDecoderInfoCache&#8203;(<a href="https://developer.android.com/reference/java/lang/String.html" title="class or interface in java.lang" class="externalLink" target="_top">String</a>&nbsp;mimeType,
boolean&nbsp;secure,
boolean&nbsp;tunneling)</pre>
<div class="block">Optional call to warm the codec cache for a given mime type.
<p>Calling this method may speed up subsequent calls to <a href="#getDecoderInfo(java.lang.String,boolean,boolean)"><code>getDecoderInfo(String, boolean,
boolean)</code></a> and <a href="#getDecoderInfos(java.lang.String,boolean,boolean)"><code>getDecoderInfos(String, boolean, boolean)</code></a>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>mimeType</code> - The mime type.</dd>
<dd><code>secure</code> - Whether the decoder is required to support secure decryption. Always pass false
unless secure decryption really is required.</dd>
<dd><code>tunneling</code> - Whether the decoder is required to support tunneling. Always pass false unless
tunneling really is required.</dd>
</dl>
</li>
</ul>
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<h4>clearDecoderInfoCache</h4>
<pre class="methodSignature">public static&nbsp;void&nbsp;clearDecoderInfoCache()</pre>
<div class="block">Clears the codec cache.
<p>This method should only be called in tests.</div>
</li>
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<h4>getDecryptOnlyDecoderInfo</h4>
<pre class="methodSignature">@Nullable
public static&nbsp;<a href="MediaCodecInfo.html" title="class in com.google.android.exoplayer2.mediacodec">MediaCodecInfo</a>&nbsp;getDecryptOnlyDecoderInfo()
throws <a href="MediaCodecUtil.DecoderQueryException.html" title="class in com.google.android.exoplayer2.mediacodec">MediaCodecUtil.DecoderQueryException</a></pre>
<div class="block">Returns information about a decoder that will only decrypt data, without decoding it.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A <a href="MediaCodecInfo.html" title="class in com.google.android.exoplayer2.mediacodec"><code>MediaCodecInfo</code></a> describing the decoder, or null if no suitable decoder exists.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="MediaCodecUtil.DecoderQueryException.html" title="class in com.google.android.exoplayer2.mediacodec">MediaCodecUtil.DecoderQueryException</a></code> - If there was an error querying the available decoders.</dd>
</dl>
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<h4>getDecoderInfo</h4>
<pre class="methodSignature">@Nullable
public static&nbsp;<a href="MediaCodecInfo.html" title="class in com.google.android.exoplayer2.mediacodec">MediaCodecInfo</a>&nbsp;getDecoderInfo&#8203;(<a href="https://developer.android.com/reference/java/lang/String.html" title="class or interface in java.lang" class="externalLink" target="_top">String</a>&nbsp;mimeType,
boolean&nbsp;secure,
boolean&nbsp;tunneling)
throws <a href="MediaCodecUtil.DecoderQueryException.html" title="class in com.google.android.exoplayer2.mediacodec">MediaCodecUtil.DecoderQueryException</a></pre>
<div class="block">Returns information about the preferred decoder for a given mime type.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>mimeType</code> - The MIME type.</dd>
<dd><code>secure</code> - Whether the decoder is required to support secure decryption. Always pass false
unless secure decryption really is required.</dd>
<dd><code>tunneling</code> - Whether the decoder is required to support tunneling. Always pass false unless
tunneling really is required.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A <a href="MediaCodecInfo.html" title="class in com.google.android.exoplayer2.mediacodec"><code>MediaCodecInfo</code></a> describing the decoder, or null if no suitable decoder exists.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="MediaCodecUtil.DecoderQueryException.html" title="class in com.google.android.exoplayer2.mediacodec">MediaCodecUtil.DecoderQueryException</a></code> - If there was an error querying the available decoders.</dd>
</dl>
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</ul>
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<pre class="methodSignature">public static&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="MediaCodecInfo.html" title="class in com.google.android.exoplayer2.mediacodec">MediaCodecInfo</a>&gt;&nbsp;getDecoderInfos&#8203;(<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>&nbsp;mimeType,
boolean&nbsp;secure,
boolean&nbsp;tunneling)
throws <a href="MediaCodecUtil.DecoderQueryException.html" title="class in com.google.android.exoplayer2.mediacodec">MediaCodecUtil.DecoderQueryException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="MediaCodecUtil.DecoderQueryException.html" title="class in com.google.android.exoplayer2.mediacodec">MediaCodecUtil.DecoderQueryException</a></code></dd>
</dl>
</li>
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<pre class="methodSignature">@CheckResult
public static&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="MediaCodecInfo.html" title="class in com.google.android.exoplayer2.mediacodec">MediaCodecInfo</a>&gt;&nbsp;getDecoderInfosSortedByFormatSupport&#8203;(<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>&lt;<a href="MediaCodecInfo.html" title="class in com.google.android.exoplayer2.mediacodec" target="_top">MediaCodecInfo</a>&gt;&nbsp;decoderInfos,
<a href="../Format.html" title="class in com.google.android.exoplayer2">Format</a>&nbsp;format)</pre>
<div class="block">Returns a copy of the provided decoder list sorted such that decoders with format support are
listed first. The returned list is modifiable for convenience.</div>
</li>
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<h4>maxH264DecodableFrameSize</h4>
<pre class="methodSignature">public static&nbsp;int&nbsp;maxH264DecodableFrameSize()
throws <a href="MediaCodecUtil.DecoderQueryException.html" title="class in com.google.android.exoplayer2.mediacodec">MediaCodecUtil.DecoderQueryException</a></pre>
<div class="block">Returns the maximum frame size supported by the default H264 decoder.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The maximum frame size for an H264 stream that can be decoded on the device.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="MediaCodecUtil.DecoderQueryException.html" title="class in com.google.android.exoplayer2.mediacodec">MediaCodecUtil.DecoderQueryException</a></code></dd>
</dl>
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<h4>getCodecProfileAndLevel</h4>
<pre class="methodSignature">@Nullable
public static&nbsp;<a href="https://developer.android.com/reference/android/util/Pair.html" title="class or interface in android.util" class="externalLink">Pair</a>&lt;<a href="https://developer.android.com/reference/java/lang/Integer.html?is-external=true" title="class or interface in java.lang" class="externalLink">Integer</a>,&#8203;<a href="https://developer.android.com/reference/java/lang/Integer.html?is-external=true" title="class or interface in java.lang" class="externalLink">Integer</a>&gt;&nbsp;getCodecProfileAndLevel&#8203;(<a href="../Format.html" title="class in com.google.android.exoplayer2" target="_top">Format</a>&nbsp;format)</pre>
<div class="block">Returns profile and level (as defined by <a href="https://developer.android.com/reference/android/media/MediaCodecInfo.CodecProfileLevel.html" title="class or interface in android.media" class="externalLink" target="_top"><code>MediaCodecInfo.CodecProfileLevel</code></a>) corresponding to the codec
description string (as defined by RFC 6381) of the given format.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>format</code> - Media format with a codec description string, as defined by RFC 6381.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A pair (profile constant, level constant) if the codec of the <code>format</code> is
well-formed and recognized, or null otherwise.</dd>
</dl>
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