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<li class="navelem"><a class="el" href="../../dir_3f8eec2fc361645de4b1ec14c19fffc7.html">packager</a></li><li class="navelem"><a class="el" href="../../dir_b885194e7131202a9b4650a8967e838c.html">mpd</a></li><li class="navelem"><a class="el" href="../../dir_6fe4b0529cd3ec97045d3314254a0cce.html">base</a></li> </ul>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright 2014 Google Inc. All rights reserved.</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// Use of this source code is governed by a BSD-style</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">// license that can be found in the LICENSE file or at</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;</div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#include &quot;packager/mpd/base/bandwidth_estimator.h&quot;</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;</div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="preprocessor">#include &lt;cmath&gt;</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &lt;cstdlib&gt;</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;</div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &quot;packager/base/logging.h&quot;</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;</div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="keyword">const</span> <span class="keywordtype">int</span> BandwidthEstimator::kUseAllBlocks = 0;</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;</div><div class="line"><a name="l00016"></a><span class="lineno"><a class="line" href="../../d2/d6f/classBandwidthEstimator.html#aaae9573785ee9d62e0927f806537ea97"> 16</a></span>&#160;<a class="code" href="../../d2/d6f/classBandwidthEstimator.html#aaae9573785ee9d62e0927f806537ea97">BandwidthEstimator::BandwidthEstimator</a>(<span class="keywordtype">int</span> num_blocks)</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160; : num_blocks_for_estimation_(num_blocks),</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160; harmonic_mean_denominator_(0.0),</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160; num_blocks_added_(0) {}</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;BandwidthEstimator::~BandwidthEstimator() {}</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="keywordtype">void</span> BandwidthEstimator::AddBlock(uint64_t size, <span class="keywordtype">double</span> duration) {</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; DCHECK_GT(duration, 0.0);</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; DCHECK_GT(size, 0u);</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; <span class="keywordflow">if</span> (num_blocks_for_estimation_ &lt; 0 &amp;&amp;</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; static_cast&lt;int&gt;(history_.size()) &gt;= -1 * num_blocks_for_estimation_) {</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; <span class="comment">// Short circuiting the case where |num_blocks_for_estimation_| number of</span></div><div class="line"><a name="l00029"></a><span class="lineno
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