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<li class="navelem"><a class="el" href="../../dir_39dc0668bd5a501998f94e8b4e546c71.html">media</a></li><li class="navelem"><a class="el" href="../../dir_65f7acfa8cf3a5f1edc11faa2428b914.html">formats</a></li><li class="navelem"><a class="el" href="../../dir_3e9291fd7a18fdecc763294cb2628910.html">mp4</a></li> </ul>
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<div class="title">box_buffer.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_FORMATS_MP4_BOX_BUFFER_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_FORMATS_MP4_BOX_BUFFER_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 <string></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 "packager/base/compiler_specific.h"</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "packager/media/base/buffer_writer.h"</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "packager/media/formats/mp4/box.h"</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "packager/media/formats/mp4/box_reader.h"</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">namespace </span>shaka {</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span>mp4 {</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="l00025"></a><span class="lineno"><a class="line" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html"> 25</a></span> <span class="keyword">class </span><a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html">BoxBuffer</a> {</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00029"></a><span class="lineno"><a class="line" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a787a6a6404dfc1fed10dfd903b4e4d22"> 29</a></span>  <span class="keyword">explicit</span> <a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a787a6a6404dfc1fed10dfd903b4e4d22">BoxBuffer</a>(<a class="code" href="../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html">BoxReader</a>* <a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a6e7c1f50071b52d7f68e094f0401d3d9">reader</a>) : reader_(reader), writer_(NULL) {</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  DCHECK(reader);</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  }</div>
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<div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a021513a50af89992b15691dfc79ed447"> 34</a></span>  <span class="keyword">explicit</span> <a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a021513a50af89992b15691dfc79ed447">BoxBuffer</a>(<a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html">BufferWriter</a>* <a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a0b9aa5e5669d771e12563e168d5c967d">writer</a>) : reader_(NULL), writer_(writer) {</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  DCHECK(writer);</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  }</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  ~<a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html">BoxBuffer</a>() {}</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div>
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<div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a6f952858fff424e19a05d64f485d3952"> 40</a></span>  <span class="keywordtype">bool</span> <a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a6f952858fff424e19a05d64f485d3952">Reading</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> reader_ != NULL; }</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
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<div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a2659cd1503fb96d2d25aaa75fe2746de"> 44</a></span>  <span class="keywordtype">size_t</span> <a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a2659cd1503fb96d2d25aaa75fe2746de">Pos</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">if</span> (reader_)</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">return</span> reader_->pos();</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">return</span> writer_->Size();</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  }</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div>
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<div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a90fe62338ba20817d27cf4e34949000e"> 54</a></span>  <span class="keywordtype">size_t</span> <a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a90fe62338ba20817d27cf4e34949000e">Size</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">if</span> (reader_)</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">return</span> reader_->size();</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">return</span> writer_->Size();</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="l00059"></a><span class="lineno"> 59</span> </div>
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<div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#acf36e70bcb8c4ee7939835126ae9b98b"> 62</a></span>  <span class="keywordtype">size_t</span> <a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#acf36e70bcb8c4ee7939835126ae9b98b">BytesLeft</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">if</span> (reader_)</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">return</span> reader_->size() - reader_->pos();</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</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="l00070"></a><span class="lineno"> 70</span>  <span class="keywordtype">bool</span> ReadWriteUInt8(uint8_t* v) {</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">if</span> (reader_)</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">return</span> reader_-><a class="code" href="../../d9/d13/classshaka_1_1media_1_1BufferReader.html#a65b65ad5a5ebc9d66182c38ec9876c05">Read1</a>(v);</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  writer_-><a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html#abd8854feedd8b45146eb04dacf7d5b2f">AppendInt</a>(*v);</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  }</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordtype">bool</span> ReadWriteUInt16(uint16_t* v) {</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">if</span> (reader_)</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">return</span> reader_->Read2(v);</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  writer_-><a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html#abd8854feedd8b45146eb04dacf7d5b2f">AppendInt</a>(*v);</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">return</span> <span class="keyword">true</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="keywordtype">bool</span> ReadWriteUInt32(uint32_t* v) {</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">if</span> (reader_)</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">return</span> reader_->Read4(v);</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  writer_-><a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html#abd8854feedd8b45146eb04dacf7d5b2f">AppendInt</a>(*v);</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  }</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordtype">bool</span> ReadWriteUInt64(uint64_t* v) {</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">if</span> (reader_)</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">return</span> reader_->Read8(v);</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  writer_-><a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html#abd8854feedd8b45146eb04dacf7d5b2f">AppendInt</a>(*v);</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  }</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordtype">bool</span> ReadWriteInt16(int16_t* v) {</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">if</span> (reader_)</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> reader_->Read2s(v);</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  writer_-><a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html#abd8854feedd8b45146eb04dacf7d5b2f">AppendInt</a>(*v);</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  }</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordtype">bool</span> ReadWriteInt32(int32_t* v) {</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">if</span> (reader_)</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">return</span> reader_->Read4s(v);</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  writer_-><a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html#abd8854feedd8b45146eb04dacf7d5b2f">AppendInt</a>(*v);</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  }</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordtype">bool</span> ReadWriteInt64(int64_t* v) {</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">if</span> (reader_)</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">return</span> reader_->Read8s(v);</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  writer_-><a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html#abd8854feedd8b45146eb04dacf7d5b2f">AppendInt</a>(*v);</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  }</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div>
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<div class="line"><a name="l00117"></a><span class="lineno"><a class="line" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a53c6b6a9bce0bb0fa61b9ce95c3f5cef"> 117</a></span>  <span class="keywordtype">bool</span> <a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a53c6b6a9bce0bb0fa61b9ce95c3f5cef">ReadWriteUInt64NBytes</a>(uint64_t* v, <span class="keywordtype">size_t</span> num_bytes) {</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">if</span> (reader_)</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">return</span> reader_-><a class="code" href="../../d9/d13/classshaka_1_1media_1_1BufferReader.html#ac98c6631c07300a6b78ec58bfd4ced30">ReadNBytesInto8</a>(v, num_bytes);</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  writer_-><a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html#ae44b09c03c9b8f0fbf58deb80355f299">AppendNBytes</a>(*v, num_bytes);</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  }</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordtype">bool</span> ReadWriteInt64NBytes(int64_t* v, <span class="keywordtype">size_t</span> num_bytes) {</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">if</span> (reader_)</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">return</span> reader_->ReadNBytesInto8s(v, num_bytes);</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  writer_-><a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html#ae44b09c03c9b8f0fbf58deb80355f299">AppendNBytes</a>(*v, num_bytes);</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  }</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordtype">bool</span> ReadWriteVector(std::vector<uint8_t>* vector, <span class="keywordtype">size_t</span> count) {</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">if</span> (reader_)</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">return</span> reader_->ReadToVector(vector, count);</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  DCHECK_EQ(vector->size(), count);</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  writer_->AppendArray(vector->data(), count);</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  }</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div>
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<div class="line"><a name="l00139"></a><span class="lineno"><a class="line" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#ac00df060effff87645b9508ba15fb67d"> 139</a></span>  <span class="keywordtype">bool</span> <a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#ac00df060effff87645b9508ba15fb67d">ReadWriteString</a>(std::string* str, <span class="keywordtype">size_t</span> size) {</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">if</span> (reader_)</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">return</span> reader_->ReadToString(str, size);</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  DCHECK_EQ(str->size(), size);</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  writer_->AppendArray(reinterpret_cast<const uint8_t*>(str->data()),</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  str->size());</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  }</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordtype">bool</span> ReadWriteFourCC(FourCC* fourcc) {</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">if</span> (reader_)</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">return</span> reader_->ReadFourCC(fourcc);</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  writer_-><a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html#abd8854feedd8b45146eb04dacf7d5b2f">AppendInt</a>(static_cast<uint32_t>(*fourcc));</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  }</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div>
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<div class="line"><a name="l00157"></a><span class="lineno"><a class="line" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a29158ec9769dafbdcf1192abf9a2aa2a"> 157</a></span>  <span class="keywordtype">bool</span> <a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a29158ec9769dafbdcf1192abf9a2aa2a">PrepareChildren</a>() {</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">if</span> (reader_)</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">return</span> reader_-><a class="code" href="../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#acc5a55985f95b73ac64c9eab7bd09242">ScanChildren</a>();</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="comment">// NOP in write mode.</span></div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  }</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div>
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<div class="line"><a name="l00166"></a><span class="lineno"><a class="line" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#af1a1b7ca8e4749e862abdda9ba4501cb"> 166</a></span>  <span class="keywordtype">bool</span> <a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#af1a1b7ca8e4749e862abdda9ba4501cb">ReadWriteChild</a>(<a class="code" href="../../d1/d2d/structshaka_1_1media_1_1mp4_1_1Box.html">Box</a>* box) {</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">if</span> (reader_)</div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">return</span> reader_-><a class="code" href="../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#a68defcd9be85bbd5cbded3bee86aa03a">ReadChild</a>(box);</div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="comment">// The box is mandatory, i.e. the box size should not be 0.</span></div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  DCHECK_NE(0u, box-><a class="code" href="../../d1/d2d/structshaka_1_1media_1_1mp4_1_1Box.html#ad0186e0f9301bd07c52a55a8b1db0419">box_size</a>());</div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  CHECK(box->ReadWriteInternal(<span class="keyword">this</span>));</div>
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|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  }</div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> </div>
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<div class="line"><a name="l00177"></a><span class="lineno"><a class="line" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a7aacff091ff415be3da48be4fc620654"> 177</a></span>  <span class="keywordtype">bool</span> <a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a7aacff091ff415be3da48be4fc620654">TryReadWriteChild</a>(<a class="code" href="../../d1/d2d/structshaka_1_1media_1_1mp4_1_1Box.html">Box</a>* box) {</div>
|
|
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">if</span> (reader_)</div>
|
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">return</span> reader_-><a class="code" href="../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#a1a4457e9638e8cf3fb30b0031b513cec">TryReadChild</a>(box);</div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="comment">// The box is optional, i.e. it can be skipped if the box size is 0.</span></div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">if</span> (box-><a class="code" href="../../d1/d2d/structshaka_1_1media_1_1mp4_1_1Box.html#ad0186e0f9301bd07c52a55a8b1db0419">box_size</a>() != 0)</div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  CHECK(box->ReadWriteInternal(<span class="keyword">this</span>));</div>
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|
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  }</div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div>
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<div class="line"><a name="l00189"></a><span class="lineno"><a class="line" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a1a0c70e3124677ae08164f7b89f6a1d4"> 189</a></span>  <span class="keywordtype">bool</span> <a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a1a0c70e3124677ae08164f7b89f6a1d4">IgnoreBytes</a>(<span class="keywordtype">size_t</span> num_bytes) {</div>
|
|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">if</span> (reader_)</div>
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordflow">return</span> reader_-><a class="code" href="../../d9/d13/classshaka_1_1media_1_1BufferReader.html#a2b15dfcd6ff891a9cb7b76f48d91d15d">SkipBytes</a>(num_bytes);</div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  std::vector<uint8_t> vector(num_bytes, 0);</div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  writer_->AppendVector(vector);</div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  }</div>
|
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div>
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<div class="line"><a name="l00198"></a><span class="lineno"><a class="line" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a6e7c1f50071b52d7f68e094f0401d3d9"> 198</a></span>  <a class="code" href="../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html">BoxReader</a>* <a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a6e7c1f50071b52d7f68e094f0401d3d9">reader</a>() { <span class="keywordflow">return</span> reader_; }</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"><a class="line" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a0b9aa5e5669d771e12563e168d5c967d"> 200</a></span>  <a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html">BufferWriter</a>* <a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a0b9aa5e5669d771e12563e168d5c967d">writer</a>() { <span class="keywordflow">return</span> writer_; }</div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> </div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keyword">private</span>:</div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <a class="code" href="../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html">BoxReader</a>* reader_;</div>
|
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<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html">BufferWriter</a>* writer_;</div>
|
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> </div>
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  DISALLOW_COPY_AND_ASSIGN(<a class="code" href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html">BoxBuffer</a>);</div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> };</div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> </div>
|
|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> } <span class="comment">// namespace mp4</span></div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> } <span class="comment">// namespace media</span></div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> } <span class="comment">// namespace shaka</span></div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> </div>
|
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="preprocessor">#endif // MEDIA_FORMATS_MP4_BOX_BUFFER_H_</span></div>
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|
<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxBuffer_html_a6e7c1f50071b52d7f68e094f0401d3d9"><div class="ttname"><a href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a6e7c1f50071b52d7f68e094f0401d3d9">shaka::media::mp4::BoxBuffer::reader</a></div><div class="ttdeci">BoxReader * reader()</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dbf/box__buffer_8h_source.html#l00198">box_buffer.h:198</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxBuffer_html_a7aacff091ff415be3da48be4fc620654"><div class="ttname"><a href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a7aacff091ff415be3da48be4fc620654">shaka::media::mp4::BoxBuffer::TryReadWriteChild</a></div><div class="ttdeci">bool TryReadWriteChild(Box *box)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dbf/box__buffer_8h_source.html#l00177">box_buffer.h:177</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxBuffer_html"><div class="ttname"><a href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html">shaka::media::mp4::BoxBuffer</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dbf/box__buffer_8h_source.html#l00025">box_buffer.h:25</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxBuffer_html_acf36e70bcb8c4ee7939835126ae9b98b"><div class="ttname"><a href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#acf36e70bcb8c4ee7939835126ae9b98b">shaka::media::mp4::BoxBuffer::BytesLeft</a></div><div class="ttdeci">size_t BytesLeft() const </div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dbf/box__buffer_8h_source.html#l00062">box_buffer.h:62</a></div></div>
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|
<div class="ttc" id="classshaka_1_1media_1_1BufferWriter_html_abd8854feedd8b45146eb04dacf7d5b2f"><div class="ttname"><a href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html#abd8854feedd8b45146eb04dacf7d5b2f">shaka::media::BufferWriter::AppendInt</a></div><div class="ttdeci">void AppendInt(uint8_t v)</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/dd3/buffer__writer_8cc_source.html#l00025">buffer_writer.cc:25</a></div></div>
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|
<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxBuffer_html_a6f952858fff424e19a05d64f485d3952"><div class="ttname"><a href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a6f952858fff424e19a05d64f485d3952">shaka::media::mp4::BoxBuffer::Reading</a></div><div class="ttdeci">bool Reading() const </div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dbf/box__buffer_8h_source.html#l00040">box_buffer.h:40</a></div></div>
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|
<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxReader_html_acc5a55985f95b73ac64c9eab7bd09242"><div class="ttname"><a href="../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#acc5a55985f95b73ac64c9eab7bd09242">shaka::media::mp4::BoxReader::ScanChildren</a></div><div class="ttdeci">bool ScanChildren() WARN_UNUSED_RESULT</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/df1/box__reader_8cc_source.html#l00067">box_reader.cc:67</a></div></div>
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|
<div class="ttc" id="classshaka_1_1media_1_1BufferWriter_html"><div class="ttname"><a href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html">shaka::media::BufferWriter</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dd/dd2/buffer__writer_8h_source.html#l00022">buffer_writer.h:22</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1BufferWriter_html_ae44b09c03c9b8f0fbf58deb80355f299"><div class="ttname"><a href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html#ae44b09c03c9b8f0fbf58deb80355f299">shaka::media::BufferWriter::AppendNBytes</a></div><div class="ttdeci">void AppendNBytes(uint64_t v, size_t num_bytes)</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/dd3/buffer__writer_8cc_source.html#l00047">buffer_writer.cc:47</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxBuffer_html_a29158ec9769dafbdcf1192abf9a2aa2a"><div class="ttname"><a href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a29158ec9769dafbdcf1192abf9a2aa2a">shaka::media::mp4::BoxBuffer::PrepareChildren</a></div><div class="ttdeci">bool PrepareChildren()</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dbf/box__buffer_8h_source.html#l00157">box_buffer.h:157</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1BufferReader_html_ac98c6631c07300a6b78ec58bfd4ced30"><div class="ttname"><a href="../../d9/d13/classshaka_1_1media_1_1BufferReader.html#ac98c6631c07300a6b78ec58bfd4ced30">shaka::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="classshaka_1_1media_1_1BufferReader_html_a65b65ad5a5ebc9d66182c38ec9876c05"><div class="ttname"><a href="../../d9/d13/classshaka_1_1media_1_1BufferReader.html#a65b65ad5a5ebc9d66182c38ec9876c05">shaka::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="structshaka_1_1media_1_1mp4_1_1Box_html_ad0186e0f9301bd07c52a55a8b1db0419"><div class="ttname"><a href="../../d1/d2d/structshaka_1_1media_1_1mp4_1_1Box.html#ad0186e0f9301bd07c52a55a8b1db0419">shaka::media::mp4::Box::box_size</a></div><div class="ttdeci">uint32_t box_size()</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d19/box_8h_source.html#l00055">box.h:55</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxBuffer_html_a0b9aa5e5669d771e12563e168d5c967d"><div class="ttname"><a href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a0b9aa5e5669d771e12563e168d5c967d">shaka::media::mp4::BoxBuffer::writer</a></div><div class="ttdeci">BufferWriter * writer()</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dbf/box__buffer_8h_source.html#l00200">box_buffer.h:200</a></div></div>
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<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1Box_html"><div class="ttname"><a href="../../d1/d2d/structshaka_1_1media_1_1mp4_1_1Box.html">shaka::media::mp4::Box</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d19/box_8h_source.html#l00027">box.h:27</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxBuffer_html_a1a0c70e3124677ae08164f7b89f6a1d4"><div class="ttname"><a href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a1a0c70e3124677ae08164f7b89f6a1d4">shaka::media::mp4::BoxBuffer::IgnoreBytes</a></div><div class="ttdeci">bool IgnoreBytes(size_t num_bytes)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dbf/box__buffer_8h_source.html#l00189">box_buffer.h:189</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1BufferReader_html_a2b15dfcd6ff891a9cb7b76f48d91d15d"><div class="ttname"><a href="../../d9/d13/classshaka_1_1media_1_1BufferReader.html#a2b15dfcd6ff891a9cb7b76f48d91d15d">shaka::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="classshaka_1_1media_1_1mp4_1_1BoxReader_html"><div class="ttname"><a href="../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html">shaka::media::mp4::BoxReader</a></div><div class="ttdoc">Class for reading MP4 boxes. </div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d92/box__reader_8h_source.html#l00025">box_reader.h:25</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxBuffer_html_ac00df060effff87645b9508ba15fb67d"><div class="ttname"><a href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#ac00df060effff87645b9508ba15fb67d">shaka::media::mp4::BoxBuffer::ReadWriteString</a></div><div class="ttdeci">bool ReadWriteString(std::string *str, size_t size)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dbf/box__buffer_8h_source.html#l00139">box_buffer.h:139</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxReader_html_a68defcd9be85bbd5cbded3bee86aa03a"><div class="ttname"><a href="../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#a68defcd9be85bbd5cbded3bee86aa03a">shaka::media::mp4::BoxReader::ReadChild</a></div><div class="ttdeci">bool ReadChild(Box *child) WARN_UNUSED_RESULT</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/df1/box__reader_8cc_source.html#l00088">box_reader.cc:88</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxBuffer_html_a2659cd1503fb96d2d25aaa75fe2746de"><div class="ttname"><a href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a2659cd1503fb96d2d25aaa75fe2746de">shaka::media::mp4::BoxBuffer::Pos</a></div><div class="ttdeci">size_t Pos() const </div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dbf/box__buffer_8h_source.html#l00044">box_buffer.h:44</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxBuffer_html_a53c6b6a9bce0bb0fa61b9ce95c3f5cef"><div class="ttname"><a href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a53c6b6a9bce0bb0fa61b9ce95c3f5cef">shaka::media::mp4::BoxBuffer::ReadWriteUInt64NBytes</a></div><div class="ttdeci">bool ReadWriteUInt64NBytes(uint64_t *v, size_t num_bytes)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dbf/box__buffer_8h_source.html#l00117">box_buffer.h:117</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxReader_html_a1a4457e9638e8cf3fb30b0031b513cec"><div class="ttname"><a href="../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html#a1a4457e9638e8cf3fb30b0031b513cec">shaka::media::mp4::BoxReader::TryReadChild</a></div><div class="ttdeci">bool TryReadChild(Box *child) WARN_UNUSED_RESULT</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/df1/box__reader_8cc_source.html#l00104">box_reader.cc:104</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxBuffer_html_a90fe62338ba20817d27cf4e34949000e"><div class="ttname"><a href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a90fe62338ba20817d27cf4e34949000e">shaka::media::mp4::BoxBuffer::Size</a></div><div class="ttdeci">size_t Size() const </div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dbf/box__buffer_8h_source.html#l00054">box_buffer.h:54</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxBuffer_html_a021513a50af89992b15691dfc79ed447"><div class="ttname"><a href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a021513a50af89992b15691dfc79ed447">shaka::media::mp4::BoxBuffer::BoxBuffer</a></div><div class="ttdeci">BoxBuffer(BufferWriter *writer)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dbf/box__buffer_8h_source.html#l00034">box_buffer.h:34</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxBuffer_html_a787a6a6404dfc1fed10dfd903b4e4d22"><div class="ttname"><a href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#a787a6a6404dfc1fed10dfd903b4e4d22">shaka::media::mp4::BoxBuffer::BoxBuffer</a></div><div class="ttdeci">BoxBuffer(BoxReader *reader)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dbf/box__buffer_8h_source.html#l00029">box_buffer.h:29</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxBuffer_html_af1a1b7ca8e4749e862abdda9ba4501cb"><div class="ttname"><a href="../../d1/da1/classshaka_1_1media_1_1mp4_1_1BoxBuffer.html#af1a1b7ca8e4749e862abdda9ba4501cb">shaka::media::mp4::BoxBuffer::ReadWriteChild</a></div><div class="ttdeci">bool ReadWriteChild(Box *box)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dbf/box__buffer_8h_source.html#l00166">box_buffer.h:166</a></div></div>
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