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<div class="title">mpd_utils.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> <span class="comment">//</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// Funtions used by MpdBuilder class to generate an MPD file.</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#ifndef MPD_BASE_MPD_UTILS_H_</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor"></span><span class="preprocessor">#define MPD_BASE_MPD_UTILS_H_</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <libxml/tree.h></span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <list></span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <string></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="preprocessor">#include "packager/base/base64.h"</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "packager/base/strings/string_util.h"</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include "packager/mpd/base/content_protection_element.h"</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "packager/mpd/base/media_info.pb.h"</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include "packager/mpd/base/mpd_builder.h"</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">namespace </span>edash_packager {</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">class </span>MediaInfo;</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">struct </span>ContentProtectionElement;</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">struct </span>SegmentInfo;</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">const</span> <span class="keywordtype">char</span> kEncryptedMp4Scheme[] = <span class="stringliteral">"urn:mpeg:dash:mp4protection:2011"</span>;</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">const</span> <span class="keywordtype">char</span> kPsshElementName[] = <span class="stringliteral">"cenc:pssh"</span>;</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">const</span> <span class="keywordtype">char</span> kEncryptedMp4Value[] = <span class="stringliteral">"cenc"</span>;</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keywordtype">bool</span> HasVODOnlyFields(<span class="keyword">const</span> MediaInfo& media_info);</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keywordtype">bool</span> HasLiveOnlyFields(<span class="keyword">const</span> MediaInfo& media_info);</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> <span class="comment">// If |content_protection_element| has 'value' or 'schemeIdUri' set but it's</span></div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment">// also in the map, then this removes them from the map.</span></div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment">// |content_protection_element| cannot be NULL.</span></div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keywordtype">void</span> RemoveDuplicateAttributes(</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  ContentProtectionElement* content_protection_element);</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment">// Returns a 'codecs' string that has all the video and audio codecs joined with</span></div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment">// comma.</span></div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> std::string GetCodecs(<span class="keyword">const</span> MediaInfo& media_info);</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> std::string SecondsToXmlDuration(<span class="keywordtype">double</span> seconds);</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> <span class="comment">// Tries to get "duration" attribute from |node|. On success |duration| is set.</span></div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keywordtype">bool</span> GetDurationAttribute(xmlNodePtr node, <span class="keywordtype">float</span>* duration);</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="keywordtype">bool</span> MoreThanOneTrue(<span class="keywordtype">bool</span> b1, <span class="keywordtype">bool</span> b2, <span class="keywordtype">bool</span> b3);</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="keywordtype">bool</span> AtLeastOneTrue(<span class="keywordtype">bool</span> b1, <span class="keywordtype">bool</span> b2, <span class="keywordtype">bool</span> b3);</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="keywordtype">bool</span> OnlyOneTrue(<span class="keywordtype">bool</span> b1, <span class="keywordtype">bool</span> b2, <span class="keywordtype">bool</span> b3);</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="keywordtype">bool</span> <a class="code" href="../../db/d09/namespaceedash__packager.html#a7015ba137f31c7ae734dc7abb254be64">HexToUUID</a>(<span class="keyword">const</span> std::string& data, std::string* uuid_format);</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment">// Update the <cenc:pssh> element for |drm_uuid| ContentProtection element.</span></div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment">// If the element does not exist, this will add one.</span></div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="keywordtype">void</span> UpdateContentProtectionPsshHelper(</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">const</span> std::string& drm_uuid,</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">const</span> std::string& pssh,</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  std::list<ContentProtectionElement>* content_protection_elements);</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="l00074"></a><span class="lineno"> 74</span> <span class="keywordtype">void</span> <a class="code" href="../../db/d09/namespaceedash__packager.html#a6f62cefcc7cf1a95f19bbea3b310fbab">AddContentProtectionElements</a>(<span class="keyword">const</span> MediaInfo& media_info,</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  Representation* parent);</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="keywordtype">void</span> <a class="code" href="../../db/d09/namespaceedash__packager.html#a6f62cefcc7cf1a95f19bbea3b310fbab">AddContentProtectionElements</a>(<span class="keyword">const</span> MediaInfo& media_info,</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  AdaptationSet* parent);</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> } <span class="comment">// namespace edash_packager</span></div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="preprocessor">#endif // MPD_BASE_MPD_UTILS_H_</span></div>
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<div class="ttc" id="namespaceedash__packager_html_a6f62cefcc7cf1a95f19bbea3b310fbab"><div class="ttname"><a href="../../db/d09/namespaceedash__packager.html#a6f62cefcc7cf1a95f19bbea3b310fbab">edash_packager::AddContentProtectionElements</a></div><div class="ttdeci">void AddContentProtectionElements(const MediaInfo &media_info, Representation *parent)</div><div class="ttdef"><b>Definition:</b> <a href="../../db/dfb/mpd__utils_8cc_source.html#l00287">mpd_utils.cc:287</a></div></div>
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<div class="ttc" id="namespaceedash__packager_html_a7015ba137f31c7ae734dc7abb254be64"><div class="ttname"><a href="../../db/d09/namespaceedash__packager.html#a7015ba137f31c7ae734dc7abb254be64">edash_packager::HexToUUID</a></div><div class="ttdeci">bool HexToUUID(const std::string &data, std::string *uuid_format)</div><div class="ttdef"><b>Definition:</b> <a href="../../db/dfb/mpd__utils_8cc_source.html#l00124">mpd_utils.cc:124</a></div></div>
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