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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_e3bda0bde998a4d5063328245b9909be.html">base</a></li> </ul>
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<div class="title">bit_writer.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2017 Google Inc. All rights reserved.</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Use of this source code is governed by a BSD-style</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// license that can be found in the LICENSE file or at</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>  </div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#ifndef PACKAGER_MEDIA_BASE_BIT_WRITER_H_</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#define PACKAGER_MEDIA_BASE_BIT_WRITER_H_</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>  </div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <stdint.h></span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>  </div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <vector></span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  </div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "packager/base/logging.h"</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  </div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="keyword">namespace </span><a class="code" href="../../d8/daf/namespaceshaka.html">shaka</a> {</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  </div>
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<div class="line"><a name="l00019"></a><span class="lineno"><a class="line" href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html"> 19</a></span> <span class="keyword">class </span><a class="code" href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html">BitWriter</a> {</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keyword">explicit</span> <a class="code" href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html#a09495a53bd1f1885dcc328b1621041f4">BitWriter</a>(std::vector<uint8_t>* storage);</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  ~<a class="code" href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html">BitWriter</a>() = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  </div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keywordtype">void</span> <a class="code" href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html#aee5f905e55f262e38f5df506611663f1">WriteBits</a>(uint32_t bits, <span class="keywordtype">size_t</span> number_of_bits);</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  </div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordtype">void</span> <a class="code" href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html#a1c14f04a0bb3090edb3ac0fffa346bc1">Flush</a>();</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  </div>
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<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html#a66164c7c6fcd524dd1f87b07f4c2e7fd"> 39</a></span>  <span class="keywordtype">size_t</span> <a class="code" href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html#a66164c7c6fcd524dd1f87b07f4c2e7fd">BitPos</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html#aab523b5008232852ede4f31c1d4b2644">BytePos</a>() * 8 + num_bits_; }</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  </div>
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<div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html#aab523b5008232852ede4f31c1d4b2644"> 42</a></span>  <span class="keywordtype">size_t</span> <a class="code" href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html#aab523b5008232852ede4f31c1d4b2644">BytePos</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> storage_->size() - initial_storage_size_; }</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  </div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <a class="code" href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html#a09495a53bd1f1885dcc328b1621041f4">BitWriter</a>(<span class="keyword">const</span> <a class="code" href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html">BitWriter</a>&) = <span class="keyword">delete</span>;</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <a class="code" href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html">BitWriter</a>& operator=(<span class="keyword">const</span> <a class="code" href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html">BitWriter</a>&) = <span class="keyword">delete</span>;</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  </div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="comment">// Accumulator for unwritten bits.</span></div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  uint64_t bits_ = 0;</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="comment">// Number of unwritten bits.</span></div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">int</span> num_bits_ = 0;</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="comment">// Buffer contains the written bits.</span></div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  std::vector<uint8_t>* <span class="keyword">const</span> storage_ = <span class="keyword">nullptr</span>;</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> initial_storage_size_ = 0;</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> };</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  </div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> } <span class="comment">// namespace shaka</span></div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  </div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#endif // PACKAGER_MEDIA_BASE_BIT_WRITER_H_</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="anamespaceshaka_html"><div class="ttname"><a href="../../d8/daf/namespaceshaka.html">shaka</a></div><div class="ttdoc">All the methods that are virtual are virtual for mocking.</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d15/gflags__hex__bytes_8cc_source.html#l00011">gflags_hex_bytes.cc:11</a></div></div>
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<div class="ttc" id="aclassshaka_1_1media_1_1BitWriter_html_a66164c7c6fcd524dd1f87b07f4c2e7fd"><div class="ttname"><a href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html#a66164c7c6fcd524dd1f87b07f4c2e7fd">shaka::media::BitWriter::BitPos</a></div><div class="ttdeci">size_t BitPos() const</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/dbc/bit__writer_8h_source.html#l00039">bit_writer.h:39</a></div></div>
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<div class="ttc" id="aclassshaka_1_1media_1_1BitWriter_html"><div class="ttname"><a href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html">shaka::media::BitWriter</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d0/dbc/bit__writer_8h_source.html#l00019">bit_writer.h:19</a></div></div>
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<div class="ttc" id="aclassshaka_1_1media_1_1BitWriter_html_aee5f905e55f262e38f5df506611663f1"><div class="ttname"><a href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html#aee5f905e55f262e38f5df506611663f1">shaka::media::BitWriter::WriteBits</a></div><div class="ttdeci">void WriteBits(uint32_t bits, size_t number_of_bits)</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d58/bit__writer_8cc_source.html#l00015">bit_writer.cc:15</a></div></div>
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<div class="ttc" id="aclassshaka_1_1media_1_1BitWriter_html_a1c14f04a0bb3090edb3ac0fffa346bc1"><div class="ttname"><a href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html#a1c14f04a0bb3090edb3ac0fffa346bc1">shaka::media::BitWriter::Flush</a></div><div class="ttdeci">void Flush()</div><div class="ttdoc">Write pending bits, and align bitstream with extra zero bits.</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d58/bit__writer_8cc_source.html#l00031">bit_writer.cc:31</a></div></div>
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<div class="ttc" id="aclassshaka_1_1media_1_1BitWriter_html_aab523b5008232852ede4f31c1d4b2644"><div class="ttname"><a href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html#aab523b5008232852ede4f31c1d4b2644">shaka::media::BitWriter::BytePos</a></div><div class="ttdeci">size_t BytePos() const</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/dbc/bit__writer_8h_source.html#l00042">bit_writer.h:42</a></div></div>
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<div class="ttc" id="aclassshaka_1_1media_1_1BitWriter_html_a09495a53bd1f1885dcc328b1621041f4"><div class="ttname"><a href="../../dc/d76/classshaka_1_1media_1_1BitWriter.html#a09495a53bd1f1885dcc328b1621041f4">shaka::media::BitWriter::BitWriter</a></div><div class="ttdeci">BitWriter(std::vector< uint8_t > *storage)</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d58/bit__writer_8cc_source.html#l00012">bit_writer.cc:12</a></div></div>
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