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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;<span class="comment">//</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#ifndef MPD_BASE_MPD_BUILDER_H_</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#define MPD_BASE_MPD_BUILDER_H_</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160; </div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &lt;libxml/tree.h&gt;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160; </div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &lt;list&gt;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#include &lt;memory&gt;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor">#include &lt;string&gt;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160; </div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#include &quot;packager/base/compiler_specific.h&quot;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#include &quot;packager/base/optional.h&quot;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="preprocessor">#include &quot;packager/base/time/clock.h&quot;</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &quot;packager/mpd/base/mpd_options.h&quot;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &quot;packager/mpd/base/xml/xml_node.h&quot;</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; </div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="comment">// TODO(rkuroiwa): For classes with |id_|, consider removing the field and let</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="comment">// the MPD (XML) generation functions take care of assigning an ID to each</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="comment">// element.</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="keyword">namespace </span><a class="code" href="../../d8/daf/namespaceshaka.html">shaka</a> {</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; </div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="keyword">class </span>AdaptationSet;</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="keyword">class </span>MediaInfo;</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;<span class="keyword">class </span>Period;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; </div>
<div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="../../dc/da1/classshaka_1_1MpdBuilder.html"> 36</a></span>&#160;<span class="keyword">class </span><a class="code" href="../../dc/da1/classshaka_1_1MpdBuilder.html">MpdBuilder</a> {</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keyword">explicit</span> <a class="code" href="../../dc/da1/classshaka_1_1MpdBuilder.html#ab364102e01afedd8a4dcc9be4fdcc0ab">MpdBuilder</a>(<span class="keyword">const</span> <a class="code" href="../../d1/df3/structshaka_1_1MpdOptions.html">MpdOptions</a>&amp; mpd_options);</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="keyword">virtual</span> ~<a class="code" href="../../dc/da1/classshaka_1_1MpdBuilder.html">MpdBuilder</a>();</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; </div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <span class="keywordtype">void</span> <a class="code" href="../../dc/da1/classshaka_1_1MpdBuilder.html#ab6fd968035d1cba5060fe23a107f8bdb">AddBaseUrl</a>(<span class="keyword">const</span> std::string&amp; base_url);</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; </div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <span class="keyword">virtual</span> <a class="code" href="../../d8/de1/classshaka_1_1Period.html">Period</a>* <a class="code" href="../../dc/da1/classshaka_1_1MpdBuilder.html#ae03eb3ac55f8b1360a57a1af16f593e6">GetOrCreatePeriod</a>(<span class="keywordtype">double</span> start_time_in_seconds);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; </div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <span class="comment">// TODO(kqyang): Handle file IO in this class as in HLS media_playlist?</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="../../dc/da1/classshaka_1_1MpdBuilder.html#a058a7c0bde155071773bcfaa5f0f5b3b">ToString</a>(std::string* output) WARN_UNUSED_RESULT;</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; </div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="../../dc/da1/classshaka_1_1MpdBuilder.html#a247a9c807274d4e707530f24e2d207f9">MakePathsRelativeToMpd</a>(<span class="keyword">const</span> std::string&amp; mpd_path,</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; MediaInfo* media_info);</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; </div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <span class="comment">// Inject a |clock| that returns the current time.</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"><a class="line" href="../../dc/da1/classshaka_1_1MpdBuilder.html#a7a4f96f12b589cfc4b5c2f44532eec53"> 71</a></span>&#160;<span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="../../dc/da1/classshaka_1_1MpdBuilder.html#a7a4f96f12b589cfc4b5c2f44532eec53">InjectClockForTesting</a>(std::unique_ptr&lt;base::Clock&gt; clock) {</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; clock_ = std::move(clock);</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; }</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; </div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <a class="code" href="../../dc/da1/classshaka_1_1MpdBuilder.html#ab364102e01afedd8a4dcc9be4fdcc0ab">MpdBuilder</a>(<span class="keyword">const</span> <a class="code" href="../../dc/da1/classshaka_1_1MpdBuilder.html">MpdBuilder</a>&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; <a class="code" href="../../dc/da1/classshaka_1_1MpdBuilder.html">MpdBuilder</a>&amp; operator=(<span class="keyword">const</span> <a class="code" href="../../dc/da1/classshaka_1_1MpdBuilder.html">MpdBuilder</a>&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="comment">// LiveMpdBuilderTest needs to set availabilityStartTime so that the test</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="comment">// doesn&#39;t need to depend on current time.</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="keyword">friend</span> <span class="keyword">class </span>LiveMpdBuilderTest;</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; <span class="keyword">template</span> &lt;DashProfile profile&gt;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <span class="keyword">friend</span> <span class="keyword">class </span>MpdBuilderTest;</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; </div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <span class="comment">// Returns the document pointer to the MPD. This must be freed by the caller</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <span class="comment">// using appropriate xmlDocPtr freeing function.</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <span class="comment">// On failure, this returns NULL.</span></div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; base::Optional&lt;xml::XmlNode&gt; GenerateMpd();</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="comment">// Set MPD attributes common to all profiles. Uses non-zero |mpd_options_| to</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <span class="comment">// set attributes for the MPD.</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="keywordtype">bool</span> AddCommonMpdInfo(<a class="code" href="../../d1/d31/classshaka_1_1xml_1_1XmlNode.html">xml::XmlNode</a>* mpd_node) WARN_UNUSED_RESULT;</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; </div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="comment">// Adds &#39;static&#39; MPD attributes and elements to |mpd_node|. This assumes that</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="comment">// the first child element is a Period element.</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="keywordtype">bool</span> AddStaticMpdInfo(<a class="code" href="../../d1/d31/classshaka_1_1xml_1_1XmlNode.html">xml::XmlNode</a>* mpd_node) WARN_UNUSED_RESULT;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; </div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="comment">// Same as AddStaticMpdInfo() but for &#39;dynamic&#39; MPDs.</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <span class="keywordtype">bool</span> AddDynamicMpdInfo(<a class="code" href="../../d1/d31/classshaka_1_1xml_1_1XmlNode.html">xml::XmlNode</a>* mpd_node) WARN_UNUSED_RESULT;</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; </div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; <span class="comment">// Add UTCTiming element if utc timing is provided.</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <span class="keywordtype">bool</span> AddUtcTiming(<a class="code" href="../../d1/d31/classshaka_1_1xml_1_1XmlNode.html">xml::XmlNode</a>* mpd_node) WARN_UNUSED_RESULT;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; </div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="keywordtype">float</span> GetStaticMpdDuration();</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; </div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; <span class="comment">// Set MPD attributes for dynamic profile MPD. Uses non-zero |mpd_options_| as</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="comment">// well as various calculations to set attributes for the MPD.</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="keywordtype">void</span> SetDynamicMpdAttributes(<a class="code" href="../../d1/d31/classshaka_1_1xml_1_1XmlNode.html">xml::XmlNode</a>* mpd_node);</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; </div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="comment">// Gets the earliest, normalized segment timestamp. Returns true if</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="comment">// successful, false otherwise.</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <span class="keywordtype">bool</span> GetEarliestTimestamp(<span class="keywordtype">double</span>* timestamp_seconds) WARN_UNUSED_RESULT;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; </div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="comment">// Update Period durations and presentation timestamps.</span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <span class="keywordtype">void</span> UpdatePeriodDurationAndPresentationTimestamp();</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; </div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <a class="code" href="../../d1/df3/structshaka_1_1MpdOptions.html">MpdOptions</a> mpd_options_;</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; std::list&lt;std::unique_ptr&lt;Period&gt;&gt; periods_;</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; </div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; std::list&lt;std::string&gt; base_urls_;</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; std::string availability_start_time_;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; </div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; uint32_t period_counter_ = 0;</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; uint32_t representation_counter_ = 0;</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="comment">// By default, this returns the current time. This can be injected for</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="comment">// testing.</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; std::unique_ptr&lt;base::Clock&gt; clock_;</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;};</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; </div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160;} <span class="comment">// namespace shaka</span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; </div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160;<span class="preprocessor">#endif // MPD_BASE_MPD_BUILDER_H_</span></div>
</div><!-- fragment --></div><!-- contents -->
<div class="ttc" id="astructshaka_1_1MpdOptions_html"><div class="ttname"><a href="../../d1/df3/structshaka_1_1MpdOptions.html">shaka::MpdOptions</a></div><div class="ttdoc">Defines Mpd Options.</div><div class="ttdef"><b>Definition:</b> <a href="../../db/d60/mpd__options_8h_source.html#l00025">mpd_options.h:25</a></div></div>
<div class="ttc" id="aclassshaka_1_1Period_html"><div class="ttname"><a href="../../d8/de1/classshaka_1_1Period.html">shaka::Period</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d20/period_8h_source.html#l00026">period.h:26</a></div></div>
<div class="ttc" id="aclassshaka_1_1MpdBuilder_html_ae03eb3ac55f8b1360a57a1af16f593e6"><div class="ttname"><a href="../../dc/da1/classshaka_1_1MpdBuilder.html#ae03eb3ac55f8b1360a57a1af16f593e6">shaka::MpdBuilder::GetOrCreatePeriod</a></div><div class="ttdeci">virtual Period * GetOrCreatePeriod(double start_time_in_seconds)</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d11/mpd__builder_8cc_source.html#l00145">mpd_builder.cc:145</a></div></div>
<div class="ttc" id="aclassshaka_1_1MpdBuilder_html_ab6fd968035d1cba5060fe23a107f8bdb"><div class="ttname"><a href="../../dc/da1/classshaka_1_1MpdBuilder.html#ab6fd968035d1cba5060fe23a107f8bdb">shaka::MpdBuilder::AddBaseUrl</a></div><div class="ttdeci">void AddBaseUrl(const std::string &amp;base_url)</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d11/mpd__builder_8cc_source.html#l00141">mpd_builder.cc:141</a></div></div>
<div class="ttc" id="aclassshaka_1_1MpdBuilder_html_a7a4f96f12b589cfc4b5c2f44532eec53"><div class="ttname"><a href="../../dc/da1/classshaka_1_1MpdBuilder.html#a7a4f96f12b589cfc4b5c2f44532eec53">shaka::MpdBuilder::InjectClockForTesting</a></div><div class="ttdeci">void InjectClockForTesting(std::unique_ptr&lt; base::Clock &gt; clock)</div><div class="ttdoc">This is for testing.</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/da3/mpd__builder_8h_source.html#l00071">mpd_builder.h:71</a></div></div>
<div class="ttc" id="aclassshaka_1_1MpdBuilder_html_a247a9c807274d4e707530f24e2d207f9"><div class="ttname"><a href="../../dc/da1/classshaka_1_1MpdBuilder.html#a247a9c807274d4e707530f24e2d207f9">shaka::MpdBuilder::MakePathsRelativeToMpd</a></div><div class="ttdeci">static void MakePathsRelativeToMpd(const std::string &amp;mpd_path, MediaInfo *media_info)</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d11/mpd__builder_8cc_source.html#l00415">mpd_builder.cc:415</a></div></div>
<div class="ttc" id="anamespaceshaka_html"><div class="ttname"><a href="../../d8/daf/namespaceshaka.html">shaka</a></div><div class="ttdoc">All the methods that are virtual are virtual for mocking.</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d15/gflags__hex__bytes_8cc_source.html#l00011">gflags_hex_bytes.cc:11</a></div></div>
<div class="ttc" id="aclassshaka_1_1MpdBuilder_html_ab364102e01afedd8a4dcc9be4fdcc0ab"><div class="ttname"><a href="../../dc/da1/classshaka_1_1MpdBuilder.html#ab364102e01afedd8a4dcc9be4fdcc0ab">shaka::MpdBuilder::MpdBuilder</a></div><div class="ttdeci">MpdBuilder(const MpdOptions &amp;mpd_options)</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d11/mpd__builder_8cc_source.html#l00136">mpd_builder.cc:136</a></div></div>
<div class="ttc" id="aclassshaka_1_1MpdBuilder_html_a058a7c0bde155071773bcfaa5f0f5b3b"><div class="ttname"><a href="../../dc/da1/classshaka_1_1MpdBuilder.html#a058a7c0bde155071773bcfaa5f0f5b3b">shaka::MpdBuilder::ToString</a></div><div class="ttdeci">virtual bool ToString(std::string *output) WARN_UNUSED_RESULT</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d11/mpd__builder_8cc_source.html#l00159">mpd_builder.cc:159</a></div></div>
<div class="ttc" id="aclassshaka_1_1MpdBuilder_html"><div class="ttname"><a href="../../dc/da1/classshaka_1_1MpdBuilder.html">shaka::MpdBuilder</a></div><div class="ttdoc">This class generates DASH MPDs (Media Presentation Descriptions).</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/da3/mpd__builder_8h_source.html#l00036">mpd_builder.h:36</a></div></div>
<div class="ttc" id="aclassshaka_1_1xml_1_1XmlNode_html"><div class="ttname"><a href="../../d1/d31/classshaka_1_1xml_1_1XmlNode.html">shaka::xml::XmlNode</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dd/de7/xml__node_8h_source.html#l00044">xml_node.h:44</a></div></div>
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