shaka-packager/docs/d5/d89/widevine__key__source_8cc_s...

704 lines
97 KiB
HTML
Raw Normal View History

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.6"/>
<title>DASH Media Packaging SDK: media/base/widevine_key_source.cc Source File</title>
<link href="../../tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="../../jquery.js"></script>
<script type="text/javascript" src="../../dynsections.js"></script>
<link href="../../search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="../../search/search.js"></script>
<script type="text/javascript">
$(document).ready(function() { searchBox.OnSelectItem(0); });
</script>
<link href="../../doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td style="padding-left: 0.5em;">
<div id="projectname">DASH Media Packaging SDK
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.6 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "../../search",false,'Search');
</script>
<div id="navrow1" class="tabs">
<ul class="tablist">
<li><a href="../../index.html"><span>Main&#160;Page</span></a></li>
<li><a href="../../namespaces.html"><span>Namespaces</span></a></li>
<li><a href="../../annotated.html"><span>Classes</span></a></li>
<li class="current"><a href="../../files.html"><span>Files</span></a></li>
<li>
<div id="MSearchBox" class="MSearchBoxInactive">
<span class="left">
<img id="MSearchSelect" src="../../search/mag_sel.png"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
alt=""/>
<input type="text" id="MSearchField" value="Search" accesskey="S"
onfocus="searchBox.OnSearchFieldFocus(true)"
onblur="searchBox.OnSearchFieldFocus(false)"
onkeyup="searchBox.OnSearchFieldChange(event)"/>
</span><span class="right">
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="../../search/close.png" alt=""/></a>
</span>
</div>
</li>
</ul>
</div>
<div id="navrow2" class="tabs2">
<ul class="tablist">
<li><a href="../../files.html"><span>File&#160;List</span></a></li>
</ul>
</div>
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark">&#160;</span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark">&#160;</span>Classes</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark">&#160;</span>Namespaces</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark">&#160;</span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark">&#160;</span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark">&#160;</span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark">&#160;</span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark">&#160;</span>Enumerator</a></div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div id="nav-path" class="navpath">
<ul>
<li class="navelem"><a class="el" href="../../dir_39dc0668bd5a501998f94e8b4e546c71.html">media</a></li><li class="navelem"><a class="el" href="../../dir_c6ada2450b25ab5438a4dba6c9b890af.html">base</a></li> </ul>
</div>
</div><!-- top -->
<div class="header">
<div class="headertitle">
<div class="title">widevine_key_source.cc</div> </div>
</div><!--header-->
<div class="contents">
<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">#include &quot;packager/media/base/widevine_key_source.h&quot;</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;</div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="preprocessor">#include &lt;set&gt;</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;</div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#include &quot;packager/base/base64.h&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &quot;packager/base/bind.h&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &quot;packager/base/json/json_reader.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &quot;packager/base/json/json_writer.h&quot;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/fixed_key_source.h&quot;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/http_key_fetcher.h&quot;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/producer_consumer_queue.h&quot;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/protection_system_specific_info.h&quot;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/rcheck.h&quot;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/request_signer.h&quot;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/widevine_pssh_data.pb.h&quot;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="keyword">namespace </span>shaka {</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="keyword">namespace </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="keyword">const</span> <span class="keywordtype">bool</span> kEnableKeyRotation = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="keyword">const</span> <span class="keywordtype">char</span> kLicenseStatusOK[] = <span class="stringliteral">&quot;OK&quot;</span>;</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="comment">// Server may return INTERNAL_ERROR intermittently, which is a transient error</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="comment">// and the next client request may succeed without problem.</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="keyword">const</span> <span class="keywordtype">char</span> kLicenseStatusTransientError[] = <span class="stringliteral">&quot;INTERNAL_ERROR&quot;</span>;</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;<span class="comment">// Number of times to retry requesting keys in case of a transient error from</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;<span class="comment">// the server.</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;<span class="keyword">const</span> <span class="keywordtype">int</span> kNumTransientErrorRetries = 5;</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;<span class="keyword">const</span> <span class="keywordtype">int</span> kFirstRetryDelayMilliseconds = 1000;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;<span class="comment">// Default crypto period count, which is the number of keys to fetch on every</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;<span class="comment">// key rotation enabled request.</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;<span class="keyword">const</span> <span class="keywordtype">int</span> kDefaultCryptoPeriodCount = 10;</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160;<span class="keyword">const</span> <span class="keywordtype">int</span> kGetKeyTimeoutInSeconds = 5 * 60; <span class="comment">// 5 minutes.</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;<span class="keyword">const</span> <span class="keywordtype">int</span> kKeyFetchTimeoutInSeconds = 60; <span class="comment">// 1 minute.</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;<span class="keywordtype">bool</span> Base64StringToBytes(<span class="keyword">const</span> std::string&amp; base64_string,</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; std::vector&lt;uint8_t&gt;* bytes) {</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; DCHECK(bytes);</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; std::string str;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <span class="keywordflow">if</span> (!base::Base64Decode(base64_string, &amp;str))</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; bytes-&gt;assign(str.begin(), str.end());</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;}</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;<span class="keywordtype">void</span> BytesToBase64String(<span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; bytes,</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; std::string* base64_string) {</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; DCHECK(base64_string);</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; base::Base64Encode(base::StringPiece(reinterpret_cast&lt;const char*&gt;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; (bytes.data()), bytes.size()),</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; base64_string);</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;}</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;<span class="keywordtype">bool</span> GetKeyFromTrack(<span class="keyword">const</span> base::DictionaryValue&amp; track_dict,</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; std::vector&lt;uint8_t&gt;* key) {</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; DCHECK(key);</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; std::string key_base64_string;</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; RCHECK(track_dict.GetString(<span class="stringliteral">&quot;key&quot;</span>, &amp;key_base64_string));</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; VLOG(2) &lt;&lt; <span class="stringliteral">&quot;Key:&quot;</span> &lt;&lt; key_base64_string;</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; RCHECK(Base64StringToBytes(key_base64_string, key));</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;}</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> GetKeyIdFromTrack(<span class="keyword">const</span> base::DictionaryValue&amp; track_dict,</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; std::vector&lt;uint8_t&gt;* key_id) {</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; DCHECK(key_id);</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; std::string key_id_base64_string;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; RCHECK(track_dict.GetString(<span class="stringliteral">&quot;key_id&quot;</span>, &amp;key_id_base64_string));</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; VLOG(2) &lt;&lt; <span class="stringliteral">&quot;Keyid:&quot;</span> &lt;&lt; key_id_base64_string;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; RCHECK(Base64StringToBytes(key_id_base64_string, key_id));</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160;}</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160;</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160;<span class="keywordtype">bool</span> GetPsshDataFromTrack(<span class="keyword">const</span> base::DictionaryValue&amp; track_dict,</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; std::vector&lt;uint8_t&gt;* pssh_data) {</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; DCHECK(pssh_data);</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160;</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <span class="keyword">const</span> base::ListValue* pssh_list;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; RCHECK(track_dict.GetList(<span class="stringliteral">&quot;pssh&quot;</span>, &amp;pssh_list));</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <span class="comment">// Invariant check. We don&#39;t want to crash in release mode if possible.</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <span class="comment">// The following code handles it gracefully if GetSize() does not return 1.</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; DCHECK_EQ(1u, pssh_list-&gt;GetSize());</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="keyword">const</span> base::DictionaryValue* pssh_dict;</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; RCHECK(pssh_list-&gt;GetDictionary(0, &amp;pssh_dict));</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; std::string drm_type;</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; RCHECK(pssh_dict-&gt;GetString(<span class="stringliteral">&quot;drm_type&quot;</span>, &amp;drm_type));</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="keywordflow">if</span> (drm_type != <span class="stringliteral">&quot;WIDEVINE&quot;</span>) {</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Expecting drm_type &#39;WIDEVINE&#39;, get &#39;&quot;</span> &lt;&lt; drm_type &lt;&lt; <span class="stringliteral">&quot;&#39;.&quot;</span>;</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; }</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; std::string pssh_data_base64_string;</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; RCHECK(pssh_dict-&gt;GetString(<span class="stringliteral">&quot;data&quot;</span>, &amp;pssh_data_base64_string));</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; VLOG(2) &lt;&lt; <span class="stringliteral">&quot;Pssh Data:&quot;</span> &lt;&lt; pssh_data_base64_string;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; RCHECK(Base64StringToBytes(pssh_data_base64_string, pssh_data));</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160;}</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160;} <span class="comment">// namespace</span></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="keyword">namespace </span>media {</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160;</div>
<div class="line"><a name="l00112"></a><span class="lineno"><a class="line" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a93480a98e423d0456482844ac629bd2e"> 112</a></span>&#160;<a class="code" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a93480a98e423d0456482844ac629bd2e">WidevineKeySource::WidevineKeySource</a>(<span class="keyword">const</span> std::string&amp; server_url,</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="keywordtype">bool</span> add_common_pssh)</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; : key_production_thread_(<span class="stringliteral">&quot;KeyProductionThread&quot;</span>,</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; base::Bind(&amp;<a class="code" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html">WidevineKeySource</a>::FetchKeysTask,</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; base::Unretained(this))),</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; key_fetcher_(new <a class="code" href="../../d7/de0/classshaka_1_1media_1_1HttpKeyFetcher.html">HttpKeyFetcher</a>(kKeyFetchTimeoutInSeconds)),</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; server_url_(server_url),</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; crypto_period_count_(kDefaultCryptoPeriodCount),</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; add_common_pssh_(add_common_pssh),</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; key_production_started_(false),</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; start_key_production_(base::WaitableEvent::ResetPolicy::AUTOMATIC,</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; base::WaitableEvent::InitialState::NOT_SIGNALED),</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; first_crypto_period_index_(0) {</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; key_production_thread_.Start();</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160;}</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160;</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160;WidevineKeySource::~WidevineKeySource() {</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; <span class="keywordflow">if</span> (key_pool_)</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; key_pool_-&gt;Stop();</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <span class="keywordflow">if</span> (key_production_thread_.HasBeenStarted()) {</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; <span class="comment">// Signal the production thread to start key production if it is not</span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; <span class="comment">// signaled yet so the thread can be joined.</span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; start_key_production_.Signal();</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; key_production_thread_.Join();</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; }</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160;}</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160;</div>
<div class="line"><a name="l00139"></a><span class="lineno"><a class="line" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a6fb9680be887d3b9367e015029f909f2"> 139</a></span>&#160;<a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#ae6490d21a6538b9c909fdf996398e576">WidevineKeySource::FetchKeys</a>(<span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; content_id,</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; <span class="keyword">const</span> std::string&amp; policy) {</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; base::AutoLock scoped_lock(lock_);</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; request_dict_.Clear();</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; std::string content_id_base64_string;</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; BytesToBase64String(content_id, &amp;content_id_base64_string);</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; request_dict_.SetString(<span class="stringliteral">&quot;content_id&quot;</span>, content_id_base64_string);</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; request_dict_.SetString(<span class="stringliteral">&quot;policy&quot;</span>, policy);</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; <span class="keywordflow">return</span> FetchKeysInternal(!kEnableKeyRotation, 0, <span class="keyword">false</span>);</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160;}</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160;</div>
<div class="line"><a name="l00150"></a><span class="lineno"><a class="line" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#ae6490d21a6538b9c909fdf996398e576"> 150</a></span>&#160;<a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#ae6490d21a6538b9c909fdf996398e576">WidevineKeySource::FetchKeys</a>(<span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; pssh_box) {</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; <span class="keyword">const</span> std::vector&lt;uint8_t&gt; widevine_system_id(</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; kWidevineSystemId, kWidevineSystemId + arraysize(kWidevineSystemId));</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160;</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <a class="code" href="../../d0/dd4/classshaka_1_1media_1_1ProtectionSystemSpecificInfo.html">ProtectionSystemSpecificInfo</a> info;</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <span class="keywordflow">if</span> (!info.<a class="code" href="../../d0/dd4/classshaka_1_1media_1_1ProtectionSystemSpecificInfo.html#a13b0f93b68efff614c5356df081f2560">Parse</a>(pssh_box.data(), pssh_box.size()))</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <span class="keywordflow">return</span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a>(error::PARSER_FAILURE, <span class="stringliteral">&quot;Error parsing the PSSH box.&quot;</span>);</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; <span class="keywordflow">if</span> (info.system_id() == widevine_system_id) {</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; base::AutoLock scoped_lock(lock_);</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; request_dict_.Clear();</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; std::string pssh_data_base64_string;</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; BytesToBase64String(info.pssh_data(), &amp;pssh_data_base64_string);</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; request_dict_.SetString(<span class="stringliteral">&quot;pssh_data&quot;</span>, pssh_data_base64_string);</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; <span class="keywordflow">return</span> FetchKeysInternal(!kEnableKeyRotation, 0, <span class="keyword">false</span>);</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!info.key_ids().empty()) {</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; <span class="comment">// This is not a Widevine PSSH box. Try making the request for the key-IDs.</span></div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; <span class="comment">// Even if this is a different key-system, it should still work. Either</span></div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; <span class="comment">// the server will not recognize it and return an error, or it will</span></div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <span class="comment">// recognize it and the key must be correct (or the content is bad).</span></div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <span class="keywordflow">return</span> <a class="code" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#ae6490d21a6538b9c909fdf996398e576">FetchKeys</a>(info.key_ids());</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <span class="keywordflow">return</span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a>(error::NOT_FOUND, <span class="stringliteral">&quot;No key IDs given in PSSH box.&quot;</span>);</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; }</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160;}</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160;</div>
<div class="line"><a name="l00177"></a><span class="lineno"><a class="line" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#ae202f5af8c11fe3abe9f7b882ac57513"> 177</a></span>&#160;<a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#ae6490d21a6538b9c909fdf996398e576">WidevineKeySource::FetchKeys</a>(</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; <span class="keyword">const</span> std::vector&lt;std::vector&lt;uint8_t&gt;&gt;&amp; key_ids) {</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; base::AutoLock scoped_lock(lock_);</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; request_dict_.Clear();</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; std::string pssh_data_base64_string;</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160;</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; <span class="comment">// Generate Widevine PSSH data from the key-IDs.</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; WidevinePsshData widevine_pssh_data;</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; key_ids.size(); i++) {</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; widevine_pssh_data.add_key_id(key_ids[i].data(), key_ids[i].size());</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; }</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160;</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; <span class="keyword">const</span> std::string serialized_string = widevine_pssh_data.SerializeAsString();</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; std::vector&lt;uint8_t&gt; pssh_data(serialized_string.begin(),</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; serialized_string.end());</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160;</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; BytesToBase64String(pssh_data, &amp;pssh_data_base64_string);</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; request_dict_.SetString(<span class="stringliteral">&quot;pssh_data&quot;</span>, pssh_data_base64_string);</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; <span class="keywordflow">return</span> FetchKeysInternal(!kEnableKeyRotation, 0, <span class="keyword">false</span>);</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160;}</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160;</div>
<div class="line"><a name="l00198"></a><span class="lineno"><a class="line" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#ac0be37455c1ec0a7d177e6b78dd5a58e"> 198</a></span>&#160;<a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#ae6490d21a6538b9c909fdf996398e576">WidevineKeySource::FetchKeys</a>(uint32_t asset_id) {</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160; base::AutoLock scoped_lock(lock_);</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; request_dict_.Clear();</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; <span class="comment">// Javascript/JSON does not support int64_t or unsigned numbers. Use double</span></div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; <span class="comment">// instead as 32-bit integer can be lossless represented using double.</span></div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; request_dict_.SetDouble(<span class="stringliteral">&quot;asset_id&quot;</span>, asset_id);</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; <span class="keywordflow">return</span> FetchKeysInternal(!kEnableKeyRotation, 0, <span class="keyword">true</span>);</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160;}</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160;</div>
<div class="line"><a name="l00207"></a><span class="lineno"><a class="line" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a59a16d61c6a6d05745e8b49fd3618deb"> 207</a></span>&#160;<a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a59a16d61c6a6d05745e8b49fd3618deb">WidevineKeySource::GetKey</a>(TrackType track_type, <a class="code" href="../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html">EncryptionKey</a>* key) {</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160; DCHECK(key);</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; <span class="keywordflow">if</span> (encryption_key_map_.find(track_type) == encryption_key_map_.end()) {</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; <span class="keywordflow">return</span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a>(error::INTERNAL_ERROR,</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; <span class="stringliteral">&quot;Cannot find key of type &quot;</span> + <a class="code" href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html#a4f9cede7a8c1678e1fac93c8fe12aa75">TrackTypeToString</a>(track_type));</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; }</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; *key = *encryption_key_map_[track_type];</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; <span class="keywordflow">return</span> Status::OK;</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160;}</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160;</div>
<div class="line"><a name="l00217"></a><span class="lineno"><a class="line" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a59699cd998290adae74e6596ba44fdc3"> 217</a></span>&#160;<a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a59a16d61c6a6d05745e8b49fd3618deb">WidevineKeySource::GetKey</a>(<span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; key_id,</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; <a class="code" href="../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html">EncryptionKey</a>* key) {</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; DCHECK(key);</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>&amp; pair : encryption_key_map_) {</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; <span class="keywordflow">if</span> (pair.second-&gt;key_id == key_id) {</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; *key = *pair.second;</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; <span class="keywordflow">return</span> Status::OK;</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; }</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; }</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; <span class="keywordflow">return</span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a>(error::INTERNAL_ERROR,</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160; <span class="stringliteral">&quot;Cannot find key with specified key ID&quot;</span>);</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160;}</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160;</div>
<div class="line"><a name="l00230"></a><span class="lineno"><a class="line" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#ab56a71e9f9f9e545f96e667279c05bb1"> 230</a></span>&#160;<a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#ab56a71e9f9f9e545f96e667279c05bb1">WidevineKeySource::GetCryptoPeriodKey</a>(uint32_t crypto_period_index,</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160; TrackType track_type,</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; <a class="code" href="../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html">EncryptionKey</a>* key) {</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; DCHECK(key_production_thread_.HasBeenStarted());</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; <span class="comment">// TODO(kqyang): This is not elegant. Consider refactoring later.</span></div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; {</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; base::AutoLock scoped_lock(lock_);</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; <span class="keywordflow">if</span> (!key_production_started_) {</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; <span class="comment">// Another client may have a slightly smaller starting crypto period</span></div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; <span class="comment">// index. Set the initial value to account for that.</span></div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; first_crypto_period_index_ =</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; crypto_period_index ? crypto_period_index - 1 : 0;</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; DCHECK(!key_pool_);</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; key_pool_.reset(<span class="keyword">new</span> <a class="code" href="../../d5/d33/classshaka_1_1media_1_1ProducerConsumerQueue.html">EncryptionKeyQueue</a>(crypto_period_count_,</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; first_crypto_period_index_));</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; start_key_production_.Signal();</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; key_production_started_ = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; }</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; }</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; <span class="keywordflow">return</span> GetKeyInternal(crypto_period_index, track_type, key);</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160;}</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160;</div>
<div class="line"><a name="l00252"></a><span class="lineno"><a class="line" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a48d182da15ecc85e2ae7fd164ba0a526"> 252</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a48d182da15ecc85e2ae7fd164ba0a526">WidevineKeySource::set_signer</a>(std::unique_ptr&lt;RequestSigner&gt; signer) {</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160; signer_ = std::move(signer);</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160;}</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160;</div>
<div class="line"><a name="l00256"></a><span class="lineno"><a class="line" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a97c0565df9381e178ebb50c193cebd04"> 256</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a97c0565df9381e178ebb50c193cebd04">WidevineKeySource::set_key_fetcher</a>(</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; std::unique_ptr&lt;KeyFetcher&gt; key_fetcher) {</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160; key_fetcher_ = std::move(key_fetcher);</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160;}</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160;</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160;<a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> WidevineKeySource::GetKeyInternal(uint32_t crypto_period_index,</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; TrackType track_type,</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160; <a class="code" href="../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html">EncryptionKey</a>* key) {</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160; DCHECK(key_pool_);</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160; DCHECK(key);</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160; DCHECK_LE(track_type, NUM_VALID_TRACK_TYPES);</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160; DCHECK_NE(track_type, TRACK_TYPE_UNKNOWN);</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160;</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160; std::shared_ptr&lt;EncryptionKeyMap&gt; encryption_key_map;</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160; <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> status = key_pool_-&gt;Peek(crypto_period_index, &amp;encryption_key_map,</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160; kGetKeyTimeoutInSeconds * 1000);</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160; <span class="keywordflow">if</span> (!status.ok()) {</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160; <span class="keywordflow">if</span> (status.error_code() == error::STOPPED) {</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; CHECK(!common_encryption_request_status_.ok());</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; <span class="keywordflow">return</span> common_encryption_request_status_;</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; }</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; <span class="keywordflow">return</span> status;</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160; }</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160;</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160; <span class="keywordflow">if</span> (encryption_key_map-&gt;find(track_type) == encryption_key_map-&gt;end()) {</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160; <span class="keywordflow">return</span> Status(error::INTERNAL_ERROR,</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160; <span class="stringliteral">&quot;Cannot find key of type &quot;</span> + <a class="code" href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html#a4f9cede7a8c1678e1fac93c8fe12aa75">TrackTypeToString</a>(track_type));</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; }</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160; *key = *encryption_key_map-&gt;at(track_type);</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; <span class="keywordflow">return</span> Status::OK;</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160;}</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160;</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160;<span class="keywordtype">void</span> WidevineKeySource::FetchKeysTask() {</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; <span class="comment">// Wait until key production is signaled.</span></div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; start_key_production_.Wait();</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160; <span class="keywordflow">if</span> (!key_pool_ || key_pool_-&gt;Stopped())</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160;</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; Status status = FetchKeysInternal(kEnableKeyRotation,</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160; first_crypto_period_index_,</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160; <span class="keyword">false</span>);</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160; <span class="keywordflow">while</span> (status.ok()) {</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160; first_crypto_period_index_ += crypto_period_count_;</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>&#160; status = FetchKeysInternal(kEnableKeyRotation,</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>&#160; first_crypto_period_index_,</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>&#160; <span class="keyword">false</span>);</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>&#160; }</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>&#160; common_encryption_request_status_ = status;</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>&#160; key_pool_-&gt;Stop();</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>&#160;}</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>&#160;</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>&#160;Status WidevineKeySource::FetchKeysInternal(<span class="keywordtype">bool</span> enable_key_rotation,</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>&#160; uint32_t first_crypto_period_index,</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>&#160; <span class="keywordtype">bool</span> widevine_classic) {</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160; std::string request;</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>&#160; FillRequest(enable_key_rotation,</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160; first_crypto_period_index,</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160; &amp;request);</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160;</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>&#160; std::string message;</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>&#160; Status status = GenerateKeyMessage(request, &amp;message);</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160; <span class="keywordflow">if</span> (!status.ok())</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160; <span class="keywordflow">return</span> status;</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160; VLOG(1) &lt;&lt; <span class="stringliteral">&quot;Message: &quot;</span> &lt;&lt; message;</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160;</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160; std::string raw_response;</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160; int64_t sleep_duration = kFirstRetryDelayMilliseconds;</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160;</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>&#160; <span class="comment">// Perform client side retries if seeing server transient error to workaround</span></div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>&#160; <span class="comment">// server limitation.</span></div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; kNumTransientErrorRetries; ++i) {</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160; status = key_fetcher_-&gt;FetchKeys(server_url_, message, &amp;raw_response);</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160; <span class="keywordflow">if</span> (status.ok()) {</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160; VLOG(1) &lt;&lt; <span class="stringliteral">&quot;Retry [&quot;</span> &lt;&lt; i &lt;&lt; <span class="stringliteral">&quot;] Response:&quot;</span> &lt;&lt; raw_response;</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160;</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160; std::string response;</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160; <span class="keywordflow">if</span> (!DecodeResponse(raw_response, &amp;response)) {</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160; <span class="keywordflow">return</span> Status(error::SERVER_ERROR,</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>&#160; <span class="stringliteral">&quot;Failed to decode response &#39;&quot;</span> + raw_response + <span class="stringliteral">&quot;&#39;.&quot;</span>);</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>&#160; }</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>&#160;</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>&#160; <span class="keywordtype">bool</span> transient_error = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>&#160; <span class="keywordflow">if</span> (ExtractEncryptionKey(enable_key_rotation,</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>&#160; widevine_classic,</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>&#160; response,</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>&#160; &amp;transient_error))</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>&#160; <span class="keywordflow">return</span> Status::OK;</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>&#160;</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>&#160; <span class="keywordflow">if</span> (!transient_error) {</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>&#160; <span class="keywordflow">return</span> Status(</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>&#160; error::SERVER_ERROR,</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>&#160; <span class="stringliteral">&quot;Failed to extract encryption key from &#39;&quot;</span> + response + <span class="stringliteral">&quot;&#39;.&quot;</span>);</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>&#160; }</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (status.error_code() != error::TIME_OUT) {</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>&#160; <span class="keywordflow">return</span> status;</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>&#160; }</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>&#160;</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>&#160; <span class="comment">// Exponential backoff.</span></div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>&#160; <span class="keywordflow">if</span> (i != kNumTransientErrorRetries - 1) {</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>&#160; base::PlatformThread::Sleep(</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>&#160; base::TimeDelta::FromMilliseconds(sleep_duration));</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>&#160; sleep_duration *= 2;</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>&#160; }</div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>&#160; }</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>&#160; <span class="keywordflow">return</span> Status(error::SERVER_ERROR,</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>&#160; <span class="stringliteral">&quot;Failed to recover from server internal error.&quot;</span>);</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>&#160;}</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>&#160;</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>&#160;<span class="keywordtype">void</span> WidevineKeySource::FillRequest(<span class="keywordtype">bool</span> enable_key_rotation,</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>&#160; uint32_t first_crypto_period_index,</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>&#160; std::string* request) {</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>&#160; DCHECK(request);</div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>&#160; DCHECK(!request_dict_.empty());</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>&#160;</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>&#160; <span class="comment">// Build tracks.</span></div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>&#160; base::ListValue* tracks = <span class="keyword">new</span> base::ListValue();</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>&#160;</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>&#160; base::DictionaryValue* track_sd = <span class="keyword">new</span> base::DictionaryValue();</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>&#160; track_sd-&gt;SetString(<span class="stringliteral">&quot;type&quot;</span>, <span class="stringliteral">&quot;SD&quot;</span>);</div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>&#160; tracks-&gt;Append(track_sd);</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>&#160; base::DictionaryValue* track_hd = <span class="keyword">new</span> base::DictionaryValue();</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>&#160; track_hd-&gt;SetString(<span class="stringliteral">&quot;type&quot;</span>, <span class="stringliteral">&quot;HD&quot;</span>);</div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>&#160; tracks-&gt;Append(track_hd);</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>&#160; base::DictionaryValue* track_uhd1 = <span class="keyword">new</span> base::DictionaryValue();</div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>&#160; track_uhd1-&gt;SetString(<span class="stringliteral">&quot;type&quot;</span>, <span class="stringliteral">&quot;UHD1&quot;</span>);</div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>&#160; tracks-&gt;Append(track_uhd1);</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>&#160; base::DictionaryValue* track_uhd2 = <span class="keyword">new</span> base::DictionaryValue();</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>&#160; track_uhd2-&gt;SetString(<span class="stringliteral">&quot;type&quot;</span>, <span class="stringliteral">&quot;UHD2&quot;</span>);</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>&#160; tracks-&gt;Append(track_uhd2);</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>&#160; base::DictionaryValue* track_audio = <span class="keyword">new</span> base::DictionaryValue();</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>&#160; track_audio-&gt;SetString(<span class="stringliteral">&quot;type&quot;</span>, <span class="stringliteral">&quot;AUDIO&quot;</span>);</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>&#160; tracks-&gt;Append(track_audio);</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>&#160;</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>&#160; request_dict_.Set(<span class="stringliteral">&quot;tracks&quot;</span>, tracks);</div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>&#160;</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>&#160; <span class="comment">// Build DRM types.</span></div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>&#160; base::ListValue* drm_types = <span class="keyword">new</span> base::ListValue();</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>&#160; drm_types-&gt;AppendString(<span class="stringliteral">&quot;WIDEVINE&quot;</span>);</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>&#160; request_dict_.Set(<span class="stringliteral">&quot;drm_types&quot;</span>, drm_types);</div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>&#160;</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>&#160; <span class="comment">// Build key rotation fields.</span></div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>&#160; <span class="keywordflow">if</span> (enable_key_rotation) {</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>&#160; <span class="comment">// Javascript/JSON does not support int64_t or unsigned numbers. Use double</span></div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>&#160; <span class="comment">// instead as 32-bit integer can be lossless represented using double.</span></div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>&#160; request_dict_.SetDouble(<span class="stringliteral">&quot;first_crypto_period_index&quot;</span>,</div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>&#160; first_crypto_period_index);</div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>&#160; request_dict_.SetInteger(<span class="stringliteral">&quot;crypto_period_count&quot;</span>, crypto_period_count_);</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>&#160; }</div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>&#160;</div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>&#160; base::JSONWriter::WriteWithOptions(</div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>&#160; request_dict_,</div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>&#160; <span class="comment">// Write doubles that have no fractional part as a normal integer, i.e.</span></div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>&#160; <span class="comment">// without using exponential notation or appending a &#39;.0&#39;.</span></div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>&#160; base::JSONWriter::OPTIONS_OMIT_DOUBLE_TYPE_PRESERVATION, request);</div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>&#160;}</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>&#160;</div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>&#160;Status WidevineKeySource::GenerateKeyMessage(<span class="keyword">const</span> std::string&amp; request,</div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>&#160; std::string* message) {</div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>&#160; DCHECK(message);</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>&#160;</div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>&#160; std::string request_base64_string;</div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>&#160; base::Base64Encode(request, &amp;request_base64_string);</div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>&#160;</div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>&#160; base::DictionaryValue request_dict;</div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>&#160; request_dict.SetString(<span class="stringliteral">&quot;request&quot;</span>, request_base64_string);</div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>&#160;</div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>&#160; <span class="comment">// Sign the request.</span></div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>&#160; <span class="keywordflow">if</span> (signer_) {</div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>&#160; std::string signature;</div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>&#160; <span class="keywordflow">if</span> (!signer_-&gt;GenerateSignature(request, &amp;signature))</div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>&#160; <span class="keywordflow">return</span> Status(error::INTERNAL_ERROR, <span class="stringliteral">&quot;Signature generation failed.&quot;</span>);</div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>&#160;</div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>&#160; std::string signature_base64_string;</div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>&#160; base::Base64Encode(signature, &amp;signature_base64_string);</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>&#160;</div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>&#160; request_dict.SetString(<span class="stringliteral">&quot;signature&quot;</span>, signature_base64_string);</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>&#160; request_dict.SetString(<span class="stringliteral">&quot;signer&quot;</span>, signer_-&gt;signer_name());</div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>&#160; }</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>&#160;</div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>&#160; base::JSONWriter::Write(request_dict, message);</div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>&#160; <span class="keywordflow">return</span> Status::OK;</div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>&#160;}</div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>&#160;</div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>&#160;<span class="keywordtype">bool</span> WidevineKeySource::DecodeResponse(</div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>&#160; <span class="keyword">const</span> std::string&amp; raw_response,</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>&#160; std::string* response) {</div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>&#160; DCHECK(response);</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>&#160;</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>&#160; <span class="comment">// Extract base64 formatted response from JSON formatted raw response.</span></div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>&#160; std::unique_ptr&lt;base::Value&gt; root(base::JSONReader::Read(raw_response));</div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>&#160; <span class="keywordflow">if</span> (!root) {</div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;&#39;&quot;</span> &lt;&lt; raw_response &lt;&lt; <span class="stringliteral">&quot;&#39; is not in JSON format.&quot;</span>;</div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>&#160; }</div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>&#160; <span class="keyword">const</span> base::DictionaryValue* response_dict = NULL;</div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>&#160; RCHECK(root-&gt;GetAsDictionary(&amp;response_dict));</div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>&#160;</div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>&#160; std::string response_base64_string;</div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>&#160; RCHECK(response_dict-&gt;GetString(<span class="stringliteral">&quot;response&quot;</span>, &amp;response_base64_string));</div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>&#160; RCHECK(base::Base64Decode(response_base64_string, response));</div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>&#160;}</div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>&#160;</div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>&#160;<span class="keywordtype">bool</span> WidevineKeySource::ExtractEncryptionKey(</div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>&#160; <span class="keywordtype">bool</span> enable_key_rotation,</div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>&#160; <span class="keywordtype">bool</span> widevine_classic,</div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>&#160; <span class="keyword">const</span> std::string&amp; response,</div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>&#160; <span class="keywordtype">bool</span>* transient_error) {</div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>&#160; DCHECK(transient_error);</div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>&#160; *transient_error = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>&#160;</div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>&#160; std::unique_ptr&lt;base::Value&gt; root(base::JSONReader::Read(response));</div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>&#160; <span class="keywordflow">if</span> (!root) {</div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;&#39;&quot;</span> &lt;&lt; response &lt;&lt; <span class="stringliteral">&quot;&#39; is not in JSON format.&quot;</span>;</div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>&#160; }</div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>&#160;</div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>&#160; <span class="keyword">const</span> base::DictionaryValue* license_dict = NULL;</div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>&#160; RCHECK(root-&gt;GetAsDictionary(&amp;license_dict));</div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>&#160;</div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>&#160; std::string license_status;</div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>&#160; RCHECK(license_dict-&gt;GetString(<span class="stringliteral">&quot;status&quot;</span>, &amp;license_status));</div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>&#160; <span class="keywordflow">if</span> (license_status != kLicenseStatusOK) {</div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Received non-OK license response: &quot;</span> &lt;&lt; response;</div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>&#160; *transient_error = (license_status == kLicenseStatusTransientError);</div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>&#160; }</div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>&#160;</div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>&#160; <span class="keyword">const</span> base::ListValue* tracks;</div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>&#160; RCHECK(license_dict-&gt;GetList(<span class="stringliteral">&quot;tracks&quot;</span>, &amp;tracks));</div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>&#160; <span class="comment">// Should have at least one track per crypto_period.</span></div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>&#160; RCHECK(enable_key_rotation ? tracks-&gt;GetSize() &gt;= 1 * crypto_period_count_</div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>&#160; : tracks-&gt;GetSize() &gt;= 1);</div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>&#160;</div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>&#160; <span class="keywordtype">int</span> current_crypto_period_index = first_crypto_period_index_;</div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>&#160;</div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>&#160; EncryptionKeyMap encryption_key_map;</div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; tracks-&gt;GetSize(); ++i) {</div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>&#160; <span class="keyword">const</span> base::DictionaryValue* track_dict;</div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>&#160; RCHECK(tracks-&gt;GetDictionary(i, &amp;track_dict));</div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>&#160;</div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>&#160; <span class="keywordflow">if</span> (enable_key_rotation) {</div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>&#160; <span class="keywordtype">int</span> crypto_period_index;</div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>&#160; RCHECK(</div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>&#160; track_dict-&gt;GetInteger(<span class="stringliteral">&quot;crypto_period_index&quot;</span>, &amp;crypto_period_index));</div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>&#160; <span class="keywordflow">if</span> (crypto_period_index != current_crypto_period_index) {</div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>&#160; <span class="keywordflow">if</span> (crypto_period_index != current_crypto_period_index + 1) {</div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Expecting crypto period index &quot;</span></div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>&#160; &lt;&lt; current_crypto_period_index &lt;&lt; <span class="stringliteral">&quot; or &quot;</span></div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>&#160; &lt;&lt; current_crypto_period_index + 1 &lt;&lt; <span class="stringliteral">&quot;; Seen &quot;</span></div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>&#160; &lt;&lt; crypto_period_index &lt;&lt; <span class="stringliteral">&quot; at track &quot;</span> &lt;&lt; i;</div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>&#160; }</div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>&#160; <span class="keywordflow">if</span> (!PushToKeyPool(&amp;encryption_key_map))</div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>&#160; ++current_crypto_period_index;</div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>&#160; }</div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>&#160; }</div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>&#160;</div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>&#160; std::string track_type_str;</div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>&#160; RCHECK(track_dict-&gt;GetString(<span class="stringliteral">&quot;type&quot;</span>, &amp;track_type_str));</div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>&#160; TrackType track_type = <a class="code" href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html#a0963412e7ee33d0e34893ebdf38d96c1">GetTrackTypeFromString</a>(track_type_str);</div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>&#160; DCHECK_NE(TRACK_TYPE_UNKNOWN, track_type);</div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>&#160; RCHECK(encryption_key_map.find(track_type) == encryption_key_map.end());</div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>&#160;</div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>&#160; std::unique_ptr&lt;EncryptionKey&gt; encryption_key(<span class="keyword">new</span> EncryptionKey());</div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>&#160;</div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>&#160; <span class="keywordflow">if</span> (!GetKeyFromTrack(*track_dict, &amp;encryption_key-&gt;key))</div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>&#160;</div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>&#160; <span class="comment">// Get key ID and PSSH data for CENC content only.</span></div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>&#160; <span class="keywordflow">if</span> (!widevine_classic) {</div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>&#160; <span class="keywordflow">if</span> (!GetKeyIdFromTrack(*track_dict, &amp;encryption_key-&gt;key_id))</div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>&#160;</div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>&#160; ProtectionSystemSpecificInfo info;</div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>&#160; info.add_key_id(encryption_key-&gt;key_id);</div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>&#160; info.set_system_id(kWidevineSystemId, arraysize(kWidevineSystemId));</div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>&#160; info.set_pssh_box_version(0);</div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>&#160;</div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>&#160; std::vector&lt;uint8_t&gt; pssh_data;</div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>&#160; <span class="keywordflow">if</span> (!GetPsshDataFromTrack(*track_dict, &amp;pssh_data))</div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>&#160; info.set_pssh_data(pssh_data);</div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>&#160;</div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>&#160; encryption_key-&gt;key_system_info.push_back(info);</div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>&#160; }</div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>&#160; encryption_key_map[track_type] = std::move(encryption_key);</div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>&#160; }</div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>&#160;</div>
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>&#160; <span class="comment">// If the flag exists, create a common system ID PSSH box that contains the</span></div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>&#160; <span class="comment">// key IDs of all the keys.</span></div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>&#160; <span class="keywordflow">if</span> (add_common_pssh_ &amp;&amp; !widevine_classic) {</div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>&#160; std::set&lt;std::vector&lt;uint8_t&gt;&gt; key_ids;</div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>&#160; <span class="keywordflow">for</span> (<span class="keyword">const</span> EncryptionKeyMap::value_type&amp; pair : encryption_key_map) {</div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>&#160; key_ids.insert(pair.second-&gt;key_id);</div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>&#160; }</div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>&#160;</div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>&#160; <span class="comment">// Create a common system PSSH box.</span></div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>&#160; ProtectionSystemSpecificInfo info;</div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>&#160; info.set_system_id(kCommonSystemId, arraysize(kCommonSystemId));</div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>&#160; info.set_pssh_box_version(1);</div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>&#160; <span class="keywordflow">for</span> (<span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; key_id : key_ids) {</div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>&#160; info.add_key_id(key_id);</div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>&#160; }</div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>&#160;</div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>&#160; <span class="keywordflow">for</span> (<span class="keyword">const</span> EncryptionKeyMap::value_type&amp; pair : encryption_key_map) {</div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span>&#160; pair.second-&gt;key_system_info.push_back(info);</div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>&#160; }</div>
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>&#160; }</div>
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>&#160;</div>
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>&#160; DCHECK(!encryption_key_map.empty());</div>
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>&#160; <span class="keywordflow">if</span> (!enable_key_rotation) {</div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>&#160; encryption_key_map_.swap(encryption_key_map);</div>
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>&#160; }</div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>&#160; <span class="keywordflow">return</span> PushToKeyPool(&amp;encryption_key_map);</div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>&#160;}</div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>&#160;</div>
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>&#160;<span class="keywordtype">bool</span> WidevineKeySource::PushToKeyPool(</div>
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>&#160; EncryptionKeyMap* encryption_key_map) {</div>
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>&#160; DCHECK(key_pool_);</div>
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>&#160; DCHECK(encryption_key_map);</div>
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>&#160; <span class="keyword">auto</span> encryption_key_map_shared = std::make_shared&lt;EncryptionKeyMap&gt;();</div>
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>&#160; encryption_key_map_shared-&gt;swap(*encryption_key_map);</div>
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>&#160; Status status = key_pool_-&gt;Push(encryption_key_map_shared, kInfiniteTimeout);</div>
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>&#160; <span class="keywordflow">if</span> (!status.ok()) {</div>
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>&#160; DCHECK_EQ(error::STOPPED, status.error_code());</div>
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>&#160; }</div>
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span>&#160;}</div>
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>&#160;</div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>&#160;} <span class="comment">// namespace media</span></div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>&#160;} <span class="comment">// namespace shaka</span></div>
<div class="ttc" id="classshaka_1_1media_1_1HttpKeyFetcher_html"><div class="ttname"><a href="../../d7/de0/classshaka_1_1media_1_1HttpKeyFetcher.html">shaka::media::HttpKeyFetcher</a></div><div class="ttdef"><b>Definition:</b> <a href="../../db/d71/http__key__fetcher_8h_source.html#l00026">http_key_fetcher.h:26</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1WidevineKeySource_html_ae6490d21a6538b9c909fdf996398e576"><div class="ttname"><a href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#ae6490d21a6538b9c909fdf996398e576">shaka::media::WidevineKeySource::FetchKeys</a></div><div class="ttdeci">Status FetchKeys(const std::vector&lt; uint8_t &gt; &amp;pssh_box) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d89/widevine__key__source_8cc_source.html#l00150">widevine_key_source.cc:150</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1WidevineKeySource_html_ab56a71e9f9f9e545f96e667279c05bb1"><div class="ttname"><a href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#ab56a71e9f9f9e545f96e667279c05bb1">shaka::media::WidevineKeySource::GetCryptoPeriodKey</a></div><div class="ttdeci">Status GetCryptoPeriodKey(uint32_t crypto_period_index, TrackType track_type, EncryptionKey *key) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d89/widevine__key__source_8cc_source.html#l00230">widevine_key_source.cc:230</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1WidevineKeySource_html_a59a16d61c6a6d05745e8b49fd3618deb"><div class="ttname"><a href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a59a16d61c6a6d05745e8b49fd3618deb">shaka::media::WidevineKeySource::GetKey</a></div><div class="ttdeci">Status GetKey(TrackType track_type, EncryptionKey *key) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d89/widevine__key__source_8cc_source.html#l00207">widevine_key_source.cc:207</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1KeySource_html_a4f9cede7a8c1678e1fac93c8fe12aa75"><div class="ttname"><a href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html#a4f9cede7a8c1678e1fac93c8fe12aa75">shaka::media::KeySource::TrackTypeToString</a></div><div class="ttdeci">static std::string TrackTypeToString(TrackType track_type)</div><div class="ttdoc">Convert TrackType to string. </div><div class="ttdef"><b>Definition:</b> <a href="../../d7/dd6/key__source_8cc_source.html#l00037">key_source.cc:37</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1ProducerConsumerQueue_html"><div class="ttname"><a href="../../d5/d33/classshaka_1_1media_1_1ProducerConsumerQueue.html">shaka::media::ProducerConsumerQueue</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d15/producer__consumer__queue_8h_source.html#l00028">producer_consumer_queue.h:28</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1WidevineKeySource_html"><div class="ttname"><a href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html">shaka::media::WidevineKeySource</a></div><div class="ttdef"><b>Definition:</b> <a href="../../da/d5c/widevine__key__source_8h_source.html#l00030">widevine_key_source.h:30</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1KeySource_html_a0963412e7ee33d0e34893ebdf38d96c1"><div class="ttname"><a href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html#a0963412e7ee33d0e34893ebdf38d96c1">shaka::media::KeySource::GetTrackTypeFromString</a></div><div class="ttdeci">static TrackType GetTrackTypeFromString(const std::string &amp;track_type_string)</div><div class="ttdoc">Convert string representation of track type to enum representation. </div><div class="ttdef"><b>Definition:</b> <a href="../../d7/dd6/key__source_8cc_source.html#l00019">key_source.cc:19</a></div></div>
<div class="ttc" id="structshaka_1_1media_1_1EncryptionKey_html"><div class="ttname"><a href="../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html">shaka::media::EncryptionKey</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d3f/key__source_8h_source.html#l00019">key_source.h:19</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1ProtectionSystemSpecificInfo_html"><div class="ttname"><a href="../../d0/dd4/classshaka_1_1media_1_1ProtectionSystemSpecificInfo.html">shaka::media::ProtectionSystemSpecificInfo</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d59/protection__system__specific__info_8h_source.html#l00019">protection_system_specific_info.h:19</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1WidevineKeySource_html_a97c0565df9381e178ebb50c193cebd04"><div class="ttname"><a href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a97c0565df9381e178ebb50c193cebd04">shaka::media::WidevineKeySource::set_key_fetcher</a></div><div class="ttdeci">void set_key_fetcher(std::unique_ptr&lt; KeyFetcher &gt; key_fetcher)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d89/widevine__key__source_8cc_source.html#l00256">widevine_key_source.cc:256</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1WidevineKeySource_html_a93480a98e423d0456482844ac629bd2e"><div class="ttname"><a href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a93480a98e423d0456482844ac629bd2e">shaka::media::WidevineKeySource::WidevineKeySource</a></div><div class="ttdeci">WidevineKeySource(const std::string &amp;server_url, bool add_common_pssh)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d89/widevine__key__source_8cc_source.html#l00112">widevine_key_source.cc:112</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1Status_html"><div class="ttname"><a href="../../d0/d93/classshaka_1_1media_1_1Status.html">shaka::media::Status</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d13/status_8h_source.html#l00079">status.h:79</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1WidevineKeySource_html_a48d182da15ecc85e2ae7fd164ba0a526"><div class="ttname"><a href="../../da/ddd/classshaka_1_1media_1_1WidevineKeySource.html#a48d182da15ecc85e2ae7fd164ba0a526">shaka::media::WidevineKeySource::set_signer</a></div><div class="ttdeci">void set_signer(std::unique_ptr&lt; RequestSigner &gt; signer)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d89/widevine__key__source_8cc_source.html#l00252">widevine_key_source.cc:252</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1ProtectionSystemSpecificInfo_html_a13b0f93b68efff614c5356df081f2560"><div class="ttname"><a href="../../d0/dd4/classshaka_1_1media_1_1ProtectionSystemSpecificInfo.html#a13b0f93b68efff614c5356df081f2560">shaka::media::ProtectionSystemSpecificInfo::Parse</a></div><div class="ttdeci">bool Parse(const uint8_t *data, size_t data_size)</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d42/protection__system__specific__info_8cc_source.html#l00044">protection_system_specific_info.cc:44</a></div></div>
</div><!-- fragment --></div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated on Thu Feb 9 2017 22:33:45 for DASH Media Packaging SDK by &#160;<a href="http://www.doxygen.org/index.html">
<img class="footer" src="../../doxygen.png" alt="doxygen"/>
</a> 1.8.6
</small></address>
</body>
</html>