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<div class="subTitle">com.google.android.exoplayer.util</div>
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<h2 title="Class CodecSpecificDataUtil" class="title">Class CodecSpecificDataUtil</h2>
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<pre>public final class <span class="typeNameLabel">CodecSpecificDataUtil</span>
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extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
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<div class="block">Provides static utility methods for manipulating various types of codec specific data.</div>
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<td class="colFirst"><code>static byte[]</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer/util/CodecSpecificDataUtil.html#buildAacAudioSpecificConfig-int-int-">buildAacAudioSpecificConfig</a></span>(int sampleRate,
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int numChannels)</code>
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<div class="block">Builds a simple HE-AAC LC AudioSpecificConfig, as defined in ISO 14496-3 1.6.2.1</div>
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</td>
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<tr id="i1" class="rowColor">
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<td class="colFirst"><code>static byte[]</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer/util/CodecSpecificDataUtil.html#buildAacAudioSpecificConfig-int-int-int-">buildAacAudioSpecificConfig</a></span>(int audioObjectType,
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int sampleRateIndex,
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int channelConfig)</code>
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<div class="block">Builds a simple AudioSpecificConfig, as defined in ISO 14496-3 1.6.2.1</div>
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</td>
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<tr id="i2" class="altColor">
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<td class="colFirst"><code>static byte[]</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer/util/CodecSpecificDataUtil.html#buildNalUnit-byte:A-int-int-">buildNalUnit</a></span>(byte[] data,
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int offset,
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int length)</code>
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<div class="block">Constructs a NAL unit consisting of the NAL start code followed by the specified data.</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>static <a href="https://developer.android.com/reference/android/util/Pair.html?is-external=true" title="class or interface in android.util">Pair</a><<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer/util/CodecSpecificDataUtil.html#parseAacAudioSpecificConfig-byte:A-">parseAacAudioSpecificConfig</a></span>(byte[] audioSpecificConfig)</code>
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<div class="block">Parses an AudioSpecificConfig, as defined in ISO 14496-3 1.6.2.1</div>
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</td>
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</tr>
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<td class="colFirst"><code>static byte[][]</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../com/google/android/exoplayer/util/CodecSpecificDataUtil.html#splitNalUnits-byte:A-">splitNalUnits</a></span>(byte[] data)</code>
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<div class="block">Splits an array of NAL units.</div>
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<h4>parseAacAudioSpecificConfig</h4>
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<pre>public static <a href="https://developer.android.com/reference/android/util/Pair.html?is-external=true" title="class or interface in android.util">Pair</a><<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>> parseAacAudioSpecificConfig(byte[] audioSpecificConfig)</pre>
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<div class="block">Parses an AudioSpecificConfig, as defined in ISO 14496-3 1.6.2.1</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>audioSpecificConfig</code> - The AudioSpecificConfig to parse.</dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>A pair consisting of the sample rate in Hz and the channel count.</dd>
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<h4>buildAacAudioSpecificConfig</h4>
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<pre>public static byte[] buildAacAudioSpecificConfig(int audioObjectType,
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int sampleRateIndex,
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int channelConfig)</pre>
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<div class="block">Builds a simple AudioSpecificConfig, as defined in ISO 14496-3 1.6.2.1</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>audioObjectType</code> - The audio object type.</dd>
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<dd><code>sampleRateIndex</code> - The sample rate index.</dd>
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<dd><code>channelConfig</code> - The channel configuration.</dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>The AudioSpecificConfig.</dd>
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</dl>
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<h4>buildAacAudioSpecificConfig</h4>
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<pre>public static byte[] buildAacAudioSpecificConfig(int sampleRate,
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int numChannels)</pre>
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<div class="block">Builds a simple HE-AAC LC AudioSpecificConfig, as defined in ISO 14496-3 1.6.2.1</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>sampleRate</code> - The sample rate in Hz.</dd>
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<dd><code>numChannels</code> - The number of channels.</dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>The AudioSpecificConfig.</dd>
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</dl>
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<h4>buildNalUnit</h4>
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<pre>public static byte[] buildNalUnit(byte[] data,
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int offset,
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int length)</pre>
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<div class="block">Constructs a NAL unit consisting of the NAL start code followed by the specified data.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>data</code> - An array containing the data that should follow the NAL start code.</dd>
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<dd><code>offset</code> - The start offset into <code>data</code>.</dd>
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<dd><code>length</code> - The number of bytes to copy from <code>data</code></dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>The constructed NAL unit.</dd>
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<h4>splitNalUnits</h4>
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<pre>public static byte[][] splitNalUnits(byte[] data)</pre>
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<div class="block">Splits an array of NAL units.
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<p>
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If the input consists of NAL start code delimited units, then the returned array consists of
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the split NAL units, each of which is still prefixed with the NAL start code. For any other
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input, null is returned.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>data</code> - An array of data.</dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>The individual NAL units, or null if the input did not consist of NAL start code
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delimited units.</dd>
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