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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">#ifndef MEDIA_FORMATS_MP4_BOX_BUFFER_H_</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define MEDIA_FORMATS_MP4_BOX_BUFFER_H_</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &quot;packager/base/compiler_specific.h&quot;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/buffer_writer.h&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/mp4/box.h&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/mp4/box_reader.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;</div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="keyword">namespace </span>edash_packager {</div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="keyword">namespace </span>media {</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="keyword">namespace </span>mp4 {</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;</div>
<div class="line"><a name="l00023"></a><span class="lineno"><a class="line" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html"> 23</a></span>&#160;<span class="keyword">class </span><a class="code" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html">BoxBuffer</a> {</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00027"></a><span class="lineno"><a class="line" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#aa1144b8d6912a983d65ff97f44ffeb51"> 27</a></span>&#160; <span class="keyword">explicit</span> <a class="code" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#aa1144b8d6912a983d65ff97f44ffeb51">BoxBuffer</a>(<a class="code" href="../../db/d6c/classedash__packager_1_1media_1_1mp4_1_1BoxReader.html">BoxReader</a>* <a class="code" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a2141be2c0c4ec27b458df15e13d7239e">reader</a>) : reader_(reader), writer_(NULL) {</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; DCHECK(reader);</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; }</div>
<div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a1ecfb419ea348ad684bf3c1556d1570c"> 32</a></span>&#160; <span class="keyword">explicit</span> <a class="code" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a1ecfb419ea348ad684bf3c1556d1570c">BoxBuffer</a>(<a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html">BufferWriter</a>* <a class="code" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#ac1c1d4d768f8f656f6ac2b5f4873b0a1">writer</a>) : reader_(NULL), writer_(writer) {</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; DCHECK(writer);</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; }</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; ~<a class="code" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html">BoxBuffer</a>() {}</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;</div>
<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a36c0d8448dab759db37f9581ea602807"> 38</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a36c0d8448dab759db37f9581ea602807">Reading</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> reader_ != NULL; }</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;</div>
<div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a0b34f56b01acc899ae44ab9f4cb0b783"> 42</a></span>&#160; <span class="keywordtype">size_t</span> <a class="code" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a0b34f56b01acc899ae44ab9f4cb0b783">Pos</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <span class="keywordflow">if</span> (reader_)</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="keywordflow">return</span> reader_-&gt;pos();</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <span class="keywordflow">return</span> writer_-&gt;Size();</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; }</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;</div>
<div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#aef7267aa7963866d3dcef4f051f84674"> 52</a></span>&#160; <span class="keywordtype">size_t</span> <a class="code" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#aef7267aa7963866d3dcef4f051f84674">Size</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <span class="keywordflow">if</span> (reader_)</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="keywordflow">return</span> reader_-&gt;size();</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="keywordflow">return</span> writer_-&gt;Size();</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; }</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="keywordtype">bool</span> ReadWriteUInt8(uint8_t* v) {</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; <span class="keywordflow">if</span> (reader_)</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <span class="keywordflow">return</span> reader_-&gt;<a class="code" href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html#a0375f4997e9c934783f51203c4d1434f">Read1</a>(v);</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; writer_-&gt;<a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115">AppendInt</a>(*v);</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; }</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; <span class="keywordtype">bool</span> ReadWriteUInt16(uint16_t* v) {</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <span class="keywordflow">if</span> (reader_)</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; <span class="keywordflow">return</span> reader_-&gt;Read2(v);</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; writer_-&gt;<a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115">AppendInt</a>(*v);</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; }</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; <span class="keywordtype">bool</span> ReadWriteUInt32(uint32_t* v) {</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; <span class="keywordflow">if</span> (reader_)</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; <span class="keywordflow">return</span> reader_-&gt;Read4(v);</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; writer_-&gt;<a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115">AppendInt</a>(*v);</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; }</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="keywordtype">bool</span> ReadWriteUInt64(uint64_t* v) {</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="keywordflow">if</span> (reader_)</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="keywordflow">return</span> reader_-&gt;Read8(v);</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; writer_-&gt;<a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115">AppendInt</a>(*v);</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; }</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <span class="keywordtype">bool</span> ReadWriteInt16(int16_t* v) {</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <span class="keywordflow">if</span> (reader_)</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <span class="keywordflow">return</span> reader_-&gt;Read2s(v);</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; writer_-&gt;<a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115">AppendInt</a>(*v);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; }</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; <span class="keywordtype">bool</span> ReadWriteInt32(int32_t* v) {</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <span class="keywordflow">if</span> (reader_)</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="keywordflow">return</span> reader_-&gt;Read4s(v);</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; writer_-&gt;<a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115">AppendInt</a>(*v);</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; }</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="keywordtype">bool</span> ReadWriteInt64(int64_t* v) {</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <span class="keywordflow">if</span> (reader_)</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="keywordflow">return</span> reader_-&gt;Read8s(v);</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; writer_-&gt;<a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115">AppendInt</a>(*v);</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; }</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;</div>
<div class="line"><a name="l00107"></a><span class="lineno"><a class="line" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a726ab4970a19fa671137e88098e3cd48"> 107</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a726ab4970a19fa671137e88098e3cd48">ReadWriteUInt64NBytes</a>(uint64_t* v, <span class="keywordtype">size_t</span> num_bytes) {</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="keywordflow">if</span> (reader_)</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="keywordflow">return</span> reader_-&gt;<a class="code" href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html#ac21a2b3a9ed6b2ad20247b6f653d8a02">ReadNBytesInto8</a>(v, num_bytes);</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; writer_-&gt;<a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#ac929211fc97bc8ec880109775757bb81">AppendNBytes</a>(*v, num_bytes);</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; }</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="keywordtype">bool</span> ReadWriteInt64NBytes(int64_t* v, <span class="keywordtype">size_t</span> num_bytes) {</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="keywordflow">if</span> (reader_)</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <span class="keywordflow">return</span> reader_-&gt;ReadNBytesInto8s(v, num_bytes);</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; writer_-&gt;<a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#ac929211fc97bc8ec880109775757bb81">AppendNBytes</a>(*v, num_bytes);</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; }</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; <span class="keywordtype">bool</span> ReadWriteVector(std::vector&lt;uint8_t&gt;* vector, <span class="keywordtype">size_t</span> count) {</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; <span class="keywordflow">if</span> (reader_)</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="keywordflow">return</span> reader_-&gt;ReadToVector(vector, count);</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; DCHECK_EQ(vector-&gt;size(), count);</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; writer_-&gt;AppendVector(*vector);</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; }</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <span class="keywordtype">bool</span> ReadWriteFourCC(FourCC* fourcc) {</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="keywordflow">if</span> (reader_)</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; <span class="keywordflow">return</span> reader_-&gt;ReadFourCC(fourcc);</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; writer_-&gt;<a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115">AppendInt</a>(static_cast&lt;uint32_t&gt;(*fourcc));</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; }</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160;</div>
<div class="line"><a name="l00135"></a><span class="lineno"><a class="line" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a2e46c4812ac9c48288a8461c230a375b"> 135</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a2e46c4812ac9c48288a8461c230a375b">PrepareChildren</a>() {</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; <span class="keywordflow">if</span> (reader_)</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <span class="keywordflow">return</span> reader_-&gt;<a class="code" href="../../db/d6c/classedash__packager_1_1media_1_1mp4_1_1BoxReader.html#a6c660acb6864f70ee1125c3f4c809e02">ScanChildren</a>();</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <span class="comment">// NOP in write mode.</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; }</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160;</div>
<div class="line"><a name="l00144"></a><span class="lineno"><a class="line" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#ae2f4c04bd204e593491db3e24715efd2"> 144</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#ae2f4c04bd204e593491db3e24715efd2">ReadWriteChild</a>(<a class="code" href="../../d7/d8a/structedash__packager_1_1media_1_1mp4_1_1Box.html">Box</a>* box) {</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; <span class="keywordflow">if</span> (reader_)</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; <span class="keywordflow">return</span> reader_-&gt;<a class="code" href="../../db/d6c/classedash__packager_1_1media_1_1mp4_1_1BoxReader.html#a480fdd0a597a8b77f7613abb2e8f5629">ReadChild</a>(box);</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; <span class="comment">// The box is mandatory, i.e. the box size should not be 0.</span></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; DCHECK_NE(0u, box-&gt;<a class="code" href="../../d7/d8a/structedash__packager_1_1media_1_1mp4_1_1Box.html#a767571cecbc37bedb05d1ea84716a005">atom_size</a>);</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; CHECK(box-&gt;<a class="code" href="../../d7/d8a/structedash__packager_1_1media_1_1mp4_1_1Box.html#ab588f893676e2c817088fc01caa7b135">ReadWrite</a>(<span class="keyword">this</span>));</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; }</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160;</div>
<div class="line"><a name="l00155"></a><span class="lineno"><a class="line" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a0573809c43c576c1835f5b8aa0e57191"> 155</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a0573809c43c576c1835f5b8aa0e57191">TryReadWriteChild</a>(<a class="code" href="../../d7/d8a/structedash__packager_1_1media_1_1mp4_1_1Box.html">Box</a>* box) {</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <span class="keywordflow">if</span> (reader_)</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="keywordflow">return</span> reader_-&gt;<a class="code" href="../../db/d6c/classedash__packager_1_1media_1_1mp4_1_1BoxReader.html#ae697ff0b40b4aa9feecb45d303f8f6bc">TryReadChild</a>(box);</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; <span class="comment">// The box is optional, i.e. it can be skipped if the box size is 0.</span></div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; <span class="keywordflow">if</span> (box-&gt;<a class="code" href="../../d7/d8a/structedash__packager_1_1media_1_1mp4_1_1Box.html#a767571cecbc37bedb05d1ea84716a005">atom_size</a> != 0)</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; CHECK(box-&gt;<a class="code" href="../../d7/d8a/structedash__packager_1_1media_1_1mp4_1_1Box.html#ab588f893676e2c817088fc01caa7b135">ReadWrite</a>(<span class="keyword">this</span>));</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; }</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160;</div>
<div class="line"><a name="l00167"></a><span class="lineno"><a class="line" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a7efa53df1ef135edd31d1e1818b9a884"> 167</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a7efa53df1ef135edd31d1e1818b9a884">IgnoreBytes</a>(<span class="keywordtype">size_t</span> num_bytes) {</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; <span class="keywordflow">if</span> (reader_)</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; <span class="keywordflow">return</span> reader_-&gt;<a class="code" href="../../d9/d46/classedash__packager_1_1media_1_1BufferReader.html#a2b7075e5a47a823b9f66c0ba702f26bf">SkipBytes</a>(num_bytes);</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; std::vector&lt;uint8_t&gt; vector(num_bytes, 0);</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; writer_-&gt;AppendVector(vector);</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; }</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160;</div>
<div class="line"><a name="l00176"></a><span class="lineno"><a class="line" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a2141be2c0c4ec27b458df15e13d7239e"> 176</a></span>&#160; <a class="code" href="../../db/d6c/classedash__packager_1_1media_1_1mp4_1_1BoxReader.html">BoxReader</a>* <a class="code" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a2141be2c0c4ec27b458df15e13d7239e">reader</a>() { <span class="keywordflow">return</span> reader_; }</div>
<div class="line"><a name="l00178"></a><span class="lineno"><a class="line" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#ac1c1d4d768f8f656f6ac2b5f4873b0a1"> 178</a></span>&#160; <a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html">BufferWriter</a>* <a class="code" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#ac1c1d4d768f8f656f6ac2b5f4873b0a1">writer</a>() { <span class="keywordflow">return</span> writer_; }</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160;</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <a class="code" href="../../db/d6c/classedash__packager_1_1media_1_1mp4_1_1BoxReader.html">BoxReader</a>* reader_;</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; <a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html">BufferWriter</a>* writer_;</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160;</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; DISALLOW_COPY_AND_ASSIGN(<a class="code" href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html">BoxBuffer</a>);</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160;};</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160;</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160;} <span class="comment">// namespace mp4</span></div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160;} <span class="comment">// namespace media</span></div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160;} <span class="comment">// namespace edash_packager</span></div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160;<span class="preprocessor">#endif // MEDIA_FORMATS_MP4_BOX_BUFFER_H_</span></div>
<div class="ttc" id="classedash__packager_1_1media_1_1BufferWriter_html_ac929211fc97bc8ec880109775757bb81"><div class="ttname"><a href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#ac929211fc97bc8ec880109775757bb81">edash_packager::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#l00046">buffer_writer.cc:46</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxReader_html_a480fdd0a597a8b77f7613abb2e8f5629"><div class="ttname"><a href="../../db/d6c/classedash__packager_1_1media_1_1mp4_1_1BoxReader.html#a480fdd0a597a8b77f7613abb2e8f5629">edash_packager::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#l00123">box_reader.cc:123</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxBuffer_html_a2141be2c0c4ec27b458df15e13d7239e"><div class="ttname"><a href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a2141be2c0c4ec27b458df15e13d7239e">edash_packager::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#l00176">box_buffer.h:176</a></div></div>
<div class="ttc" id="structedash__packager_1_1media_1_1mp4_1_1Box_html_ab588f893676e2c817088fc01caa7b135"><div class="ttname"><a href="../../d7/d8a/structedash__packager_1_1media_1_1mp4_1_1Box.html#ab588f893676e2c817088fc01caa7b135">edash_packager::media::mp4::Box::ReadWrite</a></div><div class="ttdeci">virtual bool ReadWrite(BoxBuffer *buffer)</div><div class="ttdoc">Read/write the mp4 box from/to BoxBuffer. </div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d4d/box_8cc_source.html#l00036">box.cc:36</a></div></div>
<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>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxBuffer_html_a2e46c4812ac9c48288a8461c230a375b"><div class="ttname"><a href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a2e46c4812ac9c48288a8461c230a375b">edash_packager::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#l00135">box_buffer.h:135</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxBuffer_html_aef7267aa7963866d3dcef4f051f84674"><div class="ttname"><a href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#aef7267aa7963866d3dcef4f051f84674">edash_packager::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#l00052">box_buffer.h:52</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxReader_html_ae697ff0b40b4aa9feecb45d303f8f6bc"><div class="ttname"><a href="../../db/d6c/classedash__packager_1_1media_1_1mp4_1_1BoxReader.html#ae697ff0b40b4aa9feecb45d303f8f6bc">edash_packager::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#l00140">box_reader.cc:140</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxBuffer_html"><div class="ttname"><a href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html">edash_packager::media::mp4::BoxBuffer</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dbf/box__buffer_8h_source.html#l00023">box_buffer.h:23</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxBuffer_html_a726ab4970a19fa671137e88098e3cd48"><div class="ttname"><a href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a726ab4970a19fa671137e88098e3cd48">edash_packager::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#l00107">box_buffer.h:107</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxBuffer_html_a0b34f56b01acc899ae44ab9f4cb0b783"><div class="ttname"><a href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a0b34f56b01acc899ae44ab9f4cb0b783">edash_packager::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#l00042">box_buffer.h:42</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxReader_html_a6c660acb6864f70ee1125c3f4c809e02"><div class="ttname"><a href="../../db/d6c/classedash__packager_1_1media_1_1mp4_1_1BoxReader.html#a6c660acb6864f70ee1125c3f4c809e02">edash_packager::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#l00103">box_reader.cc:103</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1BufferWriter_html_afd1449487750c41331a2d91ac417f115"><div class="ttname"><a href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#afd1449487750c41331a2d91ac417f115">edash_packager::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#l00024">buffer_writer.cc:24</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxBuffer_html_a7efa53df1ef135edd31d1e1818b9a884"><div class="ttname"><a href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a7efa53df1ef135edd31d1e1818b9a884">edash_packager::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#l00167">box_buffer.h:167</a></div></div>
<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#l00056">buffer_reader.cc:56</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxBuffer_html_a1ecfb419ea348ad684bf3c1556d1570c"><div class="ttname"><a href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a1ecfb419ea348ad684bf3c1556d1570c">edash_packager::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#l00032">box_buffer.h:32</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxBuffer_html_a36c0d8448dab759db37f9581ea602807"><div class="ttname"><a href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a36c0d8448dab759db37f9581ea602807">edash_packager::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#l00038">box_buffer.h:38</a></div></div>
<div class="ttc" id="structedash__packager_1_1media_1_1mp4_1_1Box_html"><div class="ttname"><a href="../../d7/d8a/structedash__packager_1_1media_1_1mp4_1_1Box.html">edash_packager::media::mp4::Box</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d19/box_8h_source.html#l00028">box.h:28</a></div></div>
<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>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxBuffer_html_aa1144b8d6912a983d65ff97f44ffeb51"><div class="ttname"><a href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#aa1144b8d6912a983d65ff97f44ffeb51">edash_packager::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#l00027">box_buffer.h:27</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxBuffer_html_ae2f4c04bd204e593491db3e24715efd2"><div class="ttname"><a href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#ae2f4c04bd204e593491db3e24715efd2">edash_packager::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#l00144">box_buffer.h:144</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxReader_html"><div class="ttname"><a href="../../db/d6c/classedash__packager_1_1media_1_1mp4_1_1BoxReader.html">edash_packager::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#l00024">box_reader.h:24</a></div></div>
<div class="ttc" id="structedash__packager_1_1media_1_1mp4_1_1Box_html_a767571cecbc37bedb05d1ea84716a005"><div class="ttname"><a href="../../d7/d8a/structedash__packager_1_1media_1_1mp4_1_1Box.html#a767571cecbc37bedb05d1ea84716a005">edash_packager::media::mp4::Box::atom_size</a></div><div class="ttdeci">uint32_t atom_size</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d19/box_8h_source.html#l00052">box.h:52</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxBuffer_html_a0573809c43c576c1835f5b8aa0e57191"><div class="ttname"><a href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#a0573809c43c576c1835f5b8aa0e57191">edash_packager::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#l00155">box_buffer.h:155</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1BoxBuffer_html_ac1c1d4d768f8f656f6ac2b5f4873b0a1"><div class="ttname"><a href="../../dd/d4f/classedash__packager_1_1media_1_1mp4_1_1BoxBuffer.html#ac1c1d4d768f8f656f6ac2b5f4873b0a1">edash_packager::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#l00178">box_buffer.h:178</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1BufferWriter_html"><div class="ttname"><a href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html">edash_packager::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>
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