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<div class="title">buffer_reader.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 2014 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 MEDIA_BASE_BUFFER_READER_H_</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor"></span><span class="preprocessor">#define MEDIA_BASE_BUFFER_READER_H_</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor"></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 <string></span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <vector></span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "packager/base/compiler_specific.h"</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "packager/base/macros.h"</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">namespace </span>edash_packager {</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div>
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<div class="line"><a name="l00023"></a><span class="lineno"><a class="line" href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html"> 23</a></span> <span class="keyword">class </span><a class="code" href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html">BufferReader</a> {</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00026"></a><span class="lineno"><a class="line" href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html#a7354b7da262fd2cd4680346d4ae871d8"> 26</a></span>  <a class="code" href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html#a7354b7da262fd2cd4680346d4ae871d8">BufferReader</a>(<span class="keyword">const</span> uint8_t* buf, <span class="keywordtype">size_t</span> size)</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  : buf_(buf), size_(size), pos_(0) {}</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  ~<a class="code" href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html">BufferReader</a>() {}</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div>
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<div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html#a61ac255662b847f0ef25a8228c4ba009"> 32</a></span>  <span class="keywordtype">bool</span> <a class="code" href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html#a61ac255662b847f0ef25a8228c4ba009">HasBytes</a>(<span class="keywordtype">size_t</span> count) { <span class="keywordflow">return</span> pos() + count <= size(); }</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordtype">bool</span> <a class="code" href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html#a0375f4997e9c934783f51203c4d1434f">Read1</a>(uint8_t* v) WARN_UNUSED_RESULT;</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordtype">bool</span> Read2(uint16_t* v) WARN_UNUSED_RESULT;</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordtype">bool</span> Read2s(int16_t* v) WARN_UNUSED_RESULT;</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordtype">bool</span> Read4(uint32_t* v) WARN_UNUSED_RESULT;</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordtype">bool</span> Read4s(int32_t* v) WARN_UNUSED_RESULT;</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordtype">bool</span> Read8(uint64_t* v) WARN_UNUSED_RESULT;</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordtype">bool</span> Read8s(int64_t* v) WARN_UNUSED_RESULT;</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordtype">bool</span> <a class="code" href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html#ac21a2b3a9ed6b2ad20247b6f653d8a02">ReadNBytesInto8</a>(uint64_t* v, <span class="keywordtype">size_t</span> num_bytes) WARN_UNUSED_RESULT;</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordtype">bool</span> ReadNBytesInto8s(int64_t* v, <span class="keywordtype">size_t</span> num_bytes) WARN_UNUSED_RESULT;</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>  <span class="keywordtype">bool</span> ReadToVector(std::vector<uint8_t>* t, <span class="keywordtype">size_t</span> count) WARN_UNUSED_RESULT;</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordtype">bool</span> ReadToString(std::string* str, <span class="keywordtype">size_t</span> size) WARN_UNUSED_RESULT;</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordtype">bool</span> <a class="code" href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html#a2b7075e5a47a823b9f66c0ba702f26bf">SkipBytes</a>(<span class="keywordtype">size_t</span> num_bytes) WARN_UNUSED_RESULT;</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">const</span> uint8_t* data()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> buf_; }</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordtype">size_t</span> size()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> size_; }</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordtype">void</span> set_size(<span class="keywordtype">size_t</span> size) { size_ = size; }</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordtype">size_t</span> pos()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> pos_; }</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="comment">// Internal implementation of multi-byte reads.</span></div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">bool</span> Read(T* t) WARN_UNUSED_RESULT;</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordtype">bool</span> ReadNBytes(T* t, <span class="keywordtype">size_t</span> num_bytes) WARN_UNUSED_RESULT;</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keyword">const</span> uint8_t* buf_;</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordtype">size_t</span> size_;</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordtype">size_t</span> pos_;</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  DISALLOW_COPY_AND_ASSIGN(<a class="code" href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html#a7354b7da262fd2cd4680346d4ae871d8">BufferReader</a>);</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> };</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> } <span class="comment">// namespace edash_packager</span></div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor">#endif // MEDIA_BASE_BUFFER_READER_H_</span></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1BufferReader_html_a0375f4997e9c934783f51203c4d1434f"><div class="ttname"><a href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html#a0375f4997e9c934783f51203c4d1434f">edash_packager::media::BufferReader::Read1</a></div><div class="ttdeci">bool Read1(uint8_t *v) WARN_UNUSED_RESULT</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/dbc/buffer__reader_8cc_source.html#l00014">buffer_reader.cc:14</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1BufferReader_html_a2b7075e5a47a823b9f66c0ba702f26bf"><div class="ttname"><a href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html#a2b7075e5a47a823b9f66c0ba702f26bf">edash_packager::media::BufferReader::SkipBytes</a></div><div class="ttdeci">bool SkipBytes(size_t num_bytes) WARN_UNUSED_RESULT</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/dbc/buffer__reader_8cc_source.html#l00065">buffer_reader.cc:65</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1BufferReader_html_ac21a2b3a9ed6b2ad20247b6f653d8a02"><div class="ttname"><a href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html#ac21a2b3a9ed6b2ad20247b6f653d8a02">edash_packager::media::BufferReader::ReadNBytesInto8</a></div><div class="ttdeci">bool ReadNBytesInto8(uint64_t *v, size_t num_bytes) WARN_UNUSED_RESULT</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/dbc/buffer__reader_8cc_source.html#l00040">buffer_reader.cc:40</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1BufferReader_html"><div class="ttname"><a href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html">edash_packager::media::BufferReader</a></div><div class="ttdef"><b>Definition:</b> <a href="../../de/d3e/buffer__reader_8h_source.html#l00023">buffer_reader.h:23</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1BufferReader_html_a7354b7da262fd2cd4680346d4ae871d8"><div class="ttname"><a href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html#a7354b7da262fd2cd4680346d4ae871d8">edash_packager::media::BufferReader::BufferReader</a></div><div class="ttdeci">BufferReader(const uint8_t *buf, size_t size)</div><div class="ttdoc">Create a BufferReader from a raw buffer. </div><div class="ttdef"><b>Definition:</b> <a href="../../de/d3e/buffer__reader_8h_source.html#l00026">buffer_reader.h:26</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1BufferReader_html_a61ac255662b847f0ef25a8228c4ba009"><div class="ttname"><a href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html#a61ac255662b847f0ef25a8228c4ba009">edash_packager::media::BufferReader::HasBytes</a></div><div class="ttdeci">bool HasBytes(size_t count)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d3e/buffer__reader_8h_source.html#l00032">buffer_reader.h:32</a></div></div>
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