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<div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">com.google.android.exoplayer2.decoder</a></div>
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<h2 title="Class DecoderCounters" class="title">Class DecoderCounters</h2>
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</div>
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<div class="contentContainer">
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<ul class="inheritance">
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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.decoder.DecoderCounters</li>
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<pre>public final class <span class="typeNameLabel">DecoderCounters</span>
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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>
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<div class="block">Maintains decoder event counts, for debugging purposes only.
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<p>Counters should be written from the playback thread only. Counters may be read from any
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thread. To ensure that the counter values are made visible across threads, users of this class
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should invoke <a href="#ensureUpdated()"><code>ensureUpdated()</code></a> prior to reading and after writing.</div>
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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>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#decoderInitCount">decoderInitCount</a></span></code></th>
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<td class="colLast">
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<div class="block">The number of times a decoder has been initialized.</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>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#decoderReleaseCount">decoderReleaseCount</a></span></code></th>
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<td class="colLast">
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<div class="block">The number of times a decoder has been released.</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>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#droppedBufferCount">droppedBufferCount</a></span></code></th>
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<td class="colLast">
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<div class="block">The number of dropped buffers.</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>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#droppedInputBufferCount">droppedInputBufferCount</a></span></code></th>
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<td class="colLast">
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<div class="block">The number of input buffers dropped.</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>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#droppedToKeyframeCount">droppedToKeyframeCount</a></span></code></th>
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<td class="colLast">
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<div class="block">The number of times all buffers to a keyframe were dropped.</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>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#maxConsecutiveDroppedBufferCount">maxConsecutiveDroppedBufferCount</a></span></code></th>
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<td class="colLast">
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<div class="block">The maximum number of dropped buffers without an interleaving rendered output buffer.</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>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#queuedInputBufferCount">queuedInputBufferCount</a></span></code></th>
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<td class="colLast">
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<div class="block">The number of input buffers queued to the decoder.</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>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#renderedOutputBufferCount">renderedOutputBufferCount</a></span></code></th>
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<td class="colLast">
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<div class="block">The number of rendered output buffers.</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>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#skippedInputBufferCount">skippedInputBufferCount</a></span></code></th>
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<td class="colLast">
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<div class="block">The number of skipped input buffers.</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>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#skippedOutputBufferCount">skippedOutputBufferCount</a></span></code></th>
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<td class="colLast">
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<div class="block">The number of skipped output buffers.</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>long</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#totalVideoFrameProcessingOffsetUs">totalVideoFrameProcessingOffsetUs</a></span></code></th>
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<td class="colLast">
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<div class="block">The sum of the video frame processing offsets in microseconds.</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>int</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#videoFrameProcessingOffsetCount">videoFrameProcessingOffsetCount</a></span></code></th>
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<td class="colLast">
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<div class="block">The number of video frame processing offsets added.</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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<th class="colFirst" scope="col">Constructor</th>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">DecoderCounters</a></span>()</code></th>
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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="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption>
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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="#addVideoFrameProcessingOffset(long)">addVideoFrameProcessingOffset</a></span>​(long processingOffsetUs)</code></th>
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<td class="colLast">
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<div class="block">Adds a video frame processing offset to <a href="#totalVideoFrameProcessingOffsetUs"><code>totalVideoFrameProcessingOffsetUs</code></a> and
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increases <a href="#videoFrameProcessingOffsetCount"><code>videoFrameProcessingOffsetCount</code></a> by one.</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="#ensureUpdated()">ensureUpdated</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Should be called to ensure counter values are made visible across threads.</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="#merge(com.google.android.exoplayer2.decoder.DecoderCounters)">merge</a></span>​(<a href="DecoderCounters.html" title="class in com.google.android.exoplayer2.decoder">DecoderCounters</a> other)</code></th>
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<td class="colLast">
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<div class="block">Merges the counts from <code>other</code> into this instance.</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><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="#toString()">toString</a></span>()</code></th>
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<td class="colLast"> </td>
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<h3>Methods inherited from class 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>
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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#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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</ul>
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</li>
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<h3>Field Detail</h3>
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<a id="decoderInitCount">
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<h4>decoderInitCount</h4>
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<pre>public int decoderInitCount</pre>
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<div class="block">The number of times a decoder has been initialized.</div>
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</li>
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</ul>
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<a id="decoderReleaseCount">
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<h4>decoderReleaseCount</h4>
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<pre>public int decoderReleaseCount</pre>
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<div class="block">The number of times a decoder has been released.</div>
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</li>
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</ul>
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<a id="queuedInputBufferCount">
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<h4>queuedInputBufferCount</h4>
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<pre>public int queuedInputBufferCount</pre>
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<div class="block">The number of input buffers queued to the decoder.</div>
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</li>
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<h4>skippedInputBufferCount</h4>
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<pre>public int skippedInputBufferCount</pre>
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<div class="block">The number of skipped input buffers.
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<p>A skipped input buffer is an input buffer that was deliberately not queued to the decoder.</div>
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<h4>renderedOutputBufferCount</h4>
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<pre>public int renderedOutputBufferCount</pre>
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<div class="block">The number of rendered output buffers.</div>
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<pre>public int skippedOutputBufferCount</pre>
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<div class="block">The number of skipped output buffers.
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<p>A skipped output buffer is an output buffer that was deliberately not rendered. This
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includes buffers that were never dequeued from the decoder and instead skipped while 'inside'
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the codec due to a flush.</div>
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<pre>public int droppedBufferCount</pre>
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<div class="block">The number of dropped buffers.
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<p>A dropped buffer is a buffer that was supposed to be decoded/rendered, but was instead
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dropped because it could not be rendered in time.
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<p>This includes all of <a href="#droppedInputBufferCount"><code>droppedInputBufferCount</code></a> in addition to buffers dropped after
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being queued to the decoder.</div>
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<pre>public int droppedInputBufferCount</pre>
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<div class="block">The number of input buffers dropped.
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<p>A dropped input buffer is a buffer that was not queued to the decoder because it would not
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be rendered in time.</div>
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<pre>public int maxConsecutiveDroppedBufferCount</pre>
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<div class="block">The maximum number of dropped buffers without an interleaving rendered output buffer.
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<p>Skipped buffers are ignored for the purposes of calculating this value.</div>
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</li>
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<pre>public int droppedToKeyframeCount</pre>
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<div class="block">The number of times all buffers to a keyframe were dropped.
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<p>Each time buffers to a keyframe are dropped:
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<ul>
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<li>This counter is incremented by one.
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<li><a href="#droppedInputBufferCount"><code>droppedInputBufferCount</code></a> is incremented by the number of buffers dropped from the
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source to advance to the keyframe.
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<li><a href="#droppedBufferCount"><code>droppedBufferCount</code></a> is incremented by the sum of the number of buffers dropped
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from the source to advance to the keyframe and the number of buffers 'inside' the
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decoder.
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</ul></div>
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<pre>public long totalVideoFrameProcessingOffsetUs</pre>
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<div class="block">The sum of the video frame processing offsets in microseconds.
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<p>The processing offset for a video frame is the difference between the time at which the
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frame became available to render, and the time at which it was scheduled to be rendered. A
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positive value indicates the frame became available early enough, whereas a negative value
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indicates that the frame wasn't available until after the time at which it should have been
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rendered.
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<p>Note: Use <a href="#addVideoFrameProcessingOffset(long)"><code>addVideoFrameProcessingOffset(long)</code></a> to update this field instead of
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updating it directly.</div>
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<pre>public int videoFrameProcessingOffsetCount</pre>
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<div class="block">The number of video frame processing offsets added.
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<p>Note: Use <a href="#addVideoFrameProcessingOffset(long)"><code>addVideoFrameProcessingOffset(long)</code></a> to update this field instead of
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updating it directly.</div>
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</li>
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</ul>
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</li>
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</section>
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<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<h3>Constructor Detail</h3>
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<h4>DecoderCounters</h4>
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<pre>public DecoderCounters()</pre>
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<!-- ============ METHOD DETAIL ========== -->
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<pre class="methodSignature">public void ensureUpdated()</pre>
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<div class="block">Should be called to ensure counter values are made visible across threads. The playback thread
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should call this method after updating the counter values. Any other thread should call this
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method before reading the counters.</div>
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</li>
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</ul>
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<h4>merge</h4>
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<pre class="methodSignature">public void merge​(<a href="DecoderCounters.html" title="class in com.google.android.exoplayer2.decoder">DecoderCounters</a> other)</pre>
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<div class="block">Merges the counts from <code>other</code> into this instance.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>other</code> - The <a href="DecoderCounters.html" title="class in com.google.android.exoplayer2.decoder"><code>DecoderCounters</code></a> to merge into this instance.</dd>
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</dl>
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<a id="addVideoFrameProcessingOffset(long)">
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<h4>addVideoFrameProcessingOffset</h4>
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<pre class="methodSignature">public void addVideoFrameProcessingOffset​(long processingOffsetUs)</pre>
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<div class="block">Adds a video frame processing offset to <a href="#totalVideoFrameProcessingOffsetUs"><code>totalVideoFrameProcessingOffsetUs</code></a> and
|
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increases <a href="#videoFrameProcessingOffsetCount"><code>videoFrameProcessingOffsetCount</code></a> by one.
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<p>Convenience method to ensure both fields are updated when adding a single offset.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>processingOffsetUs</code> - The video frame processing offset in microseconds.</dd>
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</dl>
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<h4>toString</h4>
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<pre class="methodSignature">public <a href="https://developer.android.com/reference/java/lang/String.html" title="class or interface in java.lang" class="externalLink" target="_top">String</a> toString()</pre>
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<dl>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
|
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<dd><code><a href="https://developer.android.com/reference/java/lang/Object.html#toString()" title="class or interface in java.lang" class="externalLink">toString</a></code> in class <code><a href="https://developer.android.com/reference/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_top">Object</a></code></dd>
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