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<title>Shaka Packager SDK: packager/media/codecs/h26x_bit_reader.cc Source File</title>
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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_f99dae54fe7170f791f339b952d5067a.html">media</a></li><li class="navelem"><a class="el" href="../../dir_64597db6ac7a9160e951a4226a03f10e.html">codecs</a></li> </ul>
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Generate SDK documents for commit 1863f5a569340132760ac3081c70a249ed72ff14
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<div class="title">h26x_bit_reader.cc</div> </div>
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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 The Chromium Authors. All rights reserved.</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">// Use of this source code is governed by a BSD-style license that can be</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// found in the LICENSE file.</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;</div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="preprocessor">#include &quot;packager/base/logging.h&quot;</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="preprocessor">#include &quot;packager/media/codecs/h26x_bit_reader.h&quot;</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;</div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="keyword">namespace </span><a class="code" href="../../d8/daf/namespaceshaka.html">shaka</a> {</div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="keyword">namespace </span>media {</div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="keyword">namespace </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="comment">// Check if any bits in the least significant |valid_bits| are set to 1.</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="keywordtype">bool</span> CheckAnyBitsSet(<span class="keywordtype">int</span> byte, <span class="keywordtype">int</span> valid_bits) {</div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160; <span class="keywordflow">return</span> (byte &amp; ((1 &lt;&lt; valid_bits) - 1)) != 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"> 16</span>&#160;</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;} <span class="comment">// namespace</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;H26xBitReader::H26xBitReader()</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160; : data_(NULL),</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160; bytes_left_(0),</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160; curr_byte_(0),</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; num_remaining_bits_in_curr_byte_(0),</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; prev_two_bytes_(0),</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; emulation_prevention_bytes_(0) {}</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;H26xBitReader::~H26xBitReader() {}</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="keywordtype">bool</span> H26xBitReader::Initialize(<span class="keyword">const</span> uint8_t* data, off_t size) {</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; DCHECK(data);</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; <span class="keywordfl
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