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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright 2014 Google Inc. All rights reserved.</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// Use of this source code is governed by a BSD-style</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">// license that can be found in the LICENSE file or at</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment">// Defines command line flags for widevine_encryption.</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 &quot;packager/app/widevine_encryption_flags.h&quot;</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/app/validate_flag.h&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &quot;packager/base/logging.h&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &quot;packager/base/strings/string_piece.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &quot;packager/base/strings/string_util.h&quot;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;</div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;DEFINE_bool(enable_widevine_encryption,</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160; <span class="keyword">false</span>,</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160; <span class="stringliteral">&quot;Enable encryption with Widevine license server/proxy. User should &quot;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160; <span class="stringliteral">&quot;provide either AES signing key (--aes_signing_key, &quot;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160; <span class="stringliteral">&quot;--aes_signing_iv) or RSA signing key (--rsa_signing_key_path).&quot;</span>);</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;DEFINE_bool(enable_widevine_decryption,</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160; <span class="keyword">false</span>,</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; <span class="stringliteral">&quot;Enable decryption with Widevine license server/proxy. User should &quot;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; <span class="stringliteral">&quot;provide either AES signing key (--aes_signing_key, &quot;</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; <span class="stringliteral">&quot;--aes_signing_iv) or RSA signing key (--rsa_signing_key_path).&quot;</span>);</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;DEFINE_bool(include_common_pssh,</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; <span class="keyword">false</span>,</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; <span class="stringliteral">&quot;When using Widevine encryption, include an additional v1 PSSH box &quot;</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; <span class="stringliteral">&quot;for the common system ID that includes the key IDs. See: &quot;</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; <span class="stringliteral">&quot;https://goo.gl/507mKp&quot;</span>);</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;DEFINE_string(key_server_url, <span class="stringliteral">&quot;&quot;</span>, <span class="stringliteral">&quot;Key server url. Required for encryption and &quot;</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; <span class="stringliteral">&quot;decryption&quot;</span>);</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;DEFINE_string(content_id, <span class="stringliteral">&quot;&quot;</span>, <span class="stringliteral">&quot;Content Id (hex).&quot;</span>);</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;DEFINE_string(policy,</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; <span class="stringliteral">&quot;&quot;</span>,</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; <span class="stringliteral">&quot;The name of a stored policy, which specifies DRM content &quot;</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <span class="stringliteral">&quot;rights.&quot;</span>);</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;DEFINE_int32(max_sd_pixels,</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; 768 * 576,</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="stringliteral">&quot;The video track is considered SD if its max pixels per frame is &quot;</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="stringliteral">&quot;no higher than max_sd_pixels. Default: 442368 (768 x 576).&quot;</span>);</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;DEFINE_int32(max_hd_pixels,</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; 1920 * 1080,</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="stringliteral">&quot;The video track is considered HD if its max pixels per frame is &quot;</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <span class="stringliteral">&quot;higher than max_sd_pixels, but no higher than max_hd_pixels. &quot;</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; <span class="stringliteral">&quot;Default: 2073600 (1920 x 1080).&quot;</span>);</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;DEFINE_int32(max_uhd1_pixels,</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; 4096 * 2160,</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <span class="stringliteral">&quot;The video track is considered UHD1 if its max pixels per frame &quot;</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="stringliteral">&quot;is higher than max_hd_pixels, but no higher than max_uhd1_pixels.&quot;</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="stringliteral">&quot; Otherwise it is UHD2. Default: 8847360 (4096 x 2160).&quot;</span>);</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;DEFINE_string(signer, <span class="stringliteral">&quot;&quot;</span>, <span class="stringliteral">&quot;The name of the signer.&quot;</span>);</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;DEFINE_string(aes_signing_key,</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="stringliteral">&quot;&quot;</span>,</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="stringliteral">&quot;AES signing key in hex string. --aes_signing_iv is required. &quot;</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <span class="stringliteral">&quot;Exclusive with --rsa_signing_key_path.&quot;</span>);</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;DEFINE_string(aes_signing_iv,</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <span class="stringliteral">&quot;&quot;</span>,</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <span class="stringliteral">&quot;AES signing iv in hex string.&quot;</span>);</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;DEFINE_string(rsa_signing_key_path,</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; <span class="stringliteral">&quot;&quot;</span>,</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <span class="stringliteral">&quot;Stores PKCS#1 RSA private key for request signing. Exclusive &quot;</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; <span class="stringliteral">&quot;with --aes_signing_key.&quot;</span>);</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160;DEFINE_int32(crypto_period_duration,</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; 0,</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; <span class="stringliteral">&quot;Crypto period duration in seconds. If it is non-zero, key &quot;</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <span class="stringliteral">&quot;rotation is enabled.&quot;</span>);</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160;DEFINE_string(protection_scheme,</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <span class="stringliteral">&quot;cenc&quot;</span>,</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="stringliteral">&quot;Choose protection scheme, &#39;cenc&#39; or &#39;cbc1&#39; or pattern-based &quot;</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; <span class="stringliteral">&quot;protection schemes &#39;cens&#39; or &#39;cbcs&#39;.&quot;</span>);</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160;<span class="keyword">namespace </span>shaka {</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160;</div>
<div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="../../d8/daf/namespaceshaka.html#ade3cbb360c0dcaacc5667676af885008"> 75</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="../../d8/daf/namespaceshaka.html#ade3cbb360c0dcaacc5667676af885008">ValidateWidevineCryptoFlags</a>() {</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <span class="keywordtype">bool</span> success = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="keyword">const</span> <span class="keywordtype">bool</span> widevine_crypto =</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; FLAGS_enable_widevine_encryption || FLAGS_enable_widevine_decryption;</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="keyword">const</span> <span class="keywordtype">char</span> widevine_crypto_label[] =</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="stringliteral">&quot;--enable_widevine_encryption/decryption&quot;</span>;</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; <span class="comment">// key_server_url and signer (optional) are associated with</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <span class="comment">// enable_widevine_encryption and enable_widevine_descryption.</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <span class="keywordflow">if</span> (!<a class="code" href="../../d8/daf/namespaceshaka.html#a9eab59c66195b54a0f4f2ff67630c2cd">ValidateFlag</a>(<span class="stringliteral">&quot;key_server_url&quot;</span>,</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; FLAGS_key_server_url,</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; widevine_crypto,</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <span class="keyword">false</span>,</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; widevine_crypto_label)) {</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; success = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; }</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <span class="keywordflow">if</span> (!<a class="code" href="../../d8/daf/namespaceshaka.html#a9eab59c66195b54a0f4f2ff67630c2cd">ValidateFlag</a>(<span class="stringliteral">&quot;signer&quot;</span>,</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; FLAGS_signer,</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; widevine_crypto,</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="keyword">true</span>,</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; widevine_crypto_label)) {</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; success = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; }</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="keywordflow">if</span> (widevine_crypto &amp;&amp; FLAGS_signer.empty() &amp;&amp;</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; base::StartsWith(base::StringPiece(FLAGS_key_server_url), <span class="stringliteral">&quot;http&quot;</span>,</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; base::CompareCase::INSENSITIVE_ASCII)) {</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; LOG(WARNING) &lt;&lt; <span class="stringliteral">&quot;--signer is likely required with &quot;</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <span class="stringliteral">&quot;--enable_widevine_encryption/decryption.&quot;</span>;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; }</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; <span class="keyword">const</span> <span class="keywordtype">char</span> widevine_encryption_label[] = <span class="stringliteral">&quot;--enable_widevine_encryption&quot;</span>;</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; <span class="comment">// content_id and policy (optional) are associated with</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="comment">// enable_widevine_encryption.</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="keywordflow">if</span> (!<a class="code" href="../../d8/daf/namespaceshaka.html#a9eab59c66195b54a0f4f2ff67630c2cd">ValidateFlag</a>(<span class="stringliteral">&quot;content_id&quot;</span>,</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; FLAGS_content_id,</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; FLAGS_enable_widevine_encryption,</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keyword">false</span>,</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; widevine_encryption_label)) {</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; success = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; }</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <span class="keywordflow">if</span> (!<a class="code" href="../../d8/daf/namespaceshaka.html#a9eab59c66195b54a0f4f2ff67630c2cd">ValidateFlag</a>(<span class="stringliteral">&quot;policy&quot;</span>,</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; FLAGS_policy,</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; FLAGS_enable_widevine_encryption,</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="keyword">true</span>,</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; widevine_encryption_label)) {</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; success = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; }</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <span class="keywordflow">if</span> (FLAGS_include_common_pssh &amp;&amp; !FLAGS_enable_widevine_encryption) {</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; <a class="code" href="../../d8/daf/namespaceshaka.html#a54fadd9c7ef14b39cd0355a5c269c772">PrintError</a>(<span class="stringliteral">&quot;--include_common_pssh is only valid with &quot;</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; <span class="stringliteral">&quot;--enable_widevine_encryption&quot;</span>);</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; success = <span class="keyword">false</span>;</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; <span class="keywordflow">if</span> (FLAGS_max_sd_pixels &lt;= 0) {</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; <a class="code" href="../../d8/daf/namespaceshaka.html#a54fadd9c7ef14b39cd0355a5c269c772">PrintError</a>(<span class="stringliteral">&quot;--max_sd_pixels must be positive.&quot;</span>);</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; success = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; }</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; <span class="keywordflow">if</span> (FLAGS_max_hd_pixels &lt;= 0) {</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; <a class="code" href="../../d8/daf/namespaceshaka.html#a54fadd9c7ef14b39cd0355a5c269c772">PrintError</a>(<span class="stringliteral">&quot;--max_hd_pixels must be positive.&quot;</span>);</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; success = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; }</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; <span class="keywordflow">if</span> (FLAGS_max_uhd1_pixels &lt;= 0) {</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <a class="code" href="../../d8/daf/namespaceshaka.html#a54fadd9c7ef14b39cd0355a5c269c772">PrintError</a>(<span class="stringliteral">&quot;--max_uhd1_pixels must be positive.&quot;</span>);</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; success = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; }</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; <span class="keywordflow">if</span> (FLAGS_max_hd_pixels &lt;= FLAGS_max_sd_pixels) {</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; <a class="code" href="../../d8/daf/namespaceshaka.html#a54fadd9c7ef14b39cd0355a5c269c772">PrintError</a>(<span class="stringliteral">&quot;--max_hd_pixels must be greater than --max_sd_pixels.&quot;</span>);</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; success = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; }</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; <span class="keywordflow">if</span> (FLAGS_max_uhd1_pixels &lt;= FLAGS_max_hd_pixels) {</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; <a class="code" href="../../d8/daf/namespaceshaka.html#a54fadd9c7ef14b39cd0355a5c269c772">PrintError</a>(<span class="stringliteral">&quot;--max_uhd1_pixels must be greater than --max_hd_pixels.&quot;</span>);</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; success = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; }</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; <span class="keyword">const</span> <span class="keywordtype">bool</span> aes = !FLAGS_signer.empty() &amp;&amp; FLAGS_rsa_signing_key_path.empty();</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <span class="keyword">const</span> <span class="keywordtype">char</span> aes_label[] =</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; <span class="stringliteral">&quot;--signer is specified and exclusive with --rsa_signing_key_path&quot;</span>;</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; <span class="comment">// aes_signer_key and aes_signing_iv are associated with aes signing.</span></div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; <span class="keywordflow">if</span> (!<a class="code" href="../../d8/daf/namespaceshaka.html#a9eab59c66195b54a0f4f2ff67630c2cd">ValidateFlag</a>(</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <span class="stringliteral">&quot;aes_signing_key&quot;</span>, FLAGS_aes_signing_key, aes, <span class="keyword">true</span>, aes_label)) {</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; success = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; }</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="keywordflow">if</span> (!<a class="code" href="../../d8/daf/namespaceshaka.html#a9eab59c66195b54a0f4f2ff67630c2cd">ValidateFlag</a>(</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; <span class="stringliteral">&quot;aes_signing_iv&quot;</span>, FLAGS_aes_signing_iv, aes, <span class="keyword">true</span>, aes_label)) {</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; success = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; }</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160;</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; <span class="keyword">const</span> <span class="keywordtype">bool</span> rsa = !FLAGS_signer.empty() &amp;&amp; FLAGS_aes_signing_key.empty() &amp;&amp;</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; FLAGS_aes_signing_iv.empty();</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <span class="keyword">const</span> <span class="keywordtype">char</span> rsa_label[] =</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; <span class="stringliteral">&quot;--signer is specified and exclusive with --aes_signing_key/iv&quot;</span>;</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; <span class="comment">// rsa_signing_key_path is associated with rsa_signing.</span></div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; <span class="keywordflow">if</span> (!<a class="code" href="../../d8/daf/namespaceshaka.html#a9eab59c66195b54a0f4f2ff67630c2cd">ValidateFlag</a>(<span class="stringliteral">&quot;rsa_signing_key_path&quot;</span>,</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; FLAGS_rsa_signing_key_path,</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; rsa,</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <span class="keyword">true</span>,</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; rsa_label)) {</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; success = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; }</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160;</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; <span class="keywordflow">if</span> (!FLAGS_signer.empty() &amp;&amp;</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; (FLAGS_aes_signing_key.empty() || FLAGS_aes_signing_iv.empty()) &amp;&amp;</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; FLAGS_rsa_signing_key_path.empty()) {</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; <a class="code" href="../../d8/daf/namespaceshaka.html#a54fadd9c7ef14b39cd0355a5c269c772">PrintError</a>(</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <span class="stringliteral">&quot;--aes_signing_key/iv or --rsa_signing_key_path is required with &quot;</span></div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; <span class="stringliteral">&quot;--signer.&quot;</span>);</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; success = <span class="keyword">false</span>;</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;</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; <span class="keywordflow">if</span> (FLAGS_crypto_period_duration &lt; 0) {</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; <a class="code" href="../../d8/daf/namespaceshaka.html#a54fadd9c7ef14b39cd0355a5c269c772">PrintError</a>(<span class="stringliteral">&quot;--crypto_period_duration should not be negative.&quot;</span>);</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; success = <span class="keyword">false</span>;</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; <span class="keywordflow">return</span> success;</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160;}</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160;} <span class="comment">// namespace shaka</span></div>
<div class="ttc" id="namespaceshaka_html_a54fadd9c7ef14b39cd0355a5c269c772"><div class="ttname"><a href="../../d8/daf/namespaceshaka.html#a54fadd9c7ef14b39cd0355a5c269c772">shaka::PrintError</a></div><div class="ttdeci">void PrintError(const std::string &amp;error_message)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/dad/validate__flag_8cc_source.html#l00036">validate_flag.cc:36</a></div></div>
<div class="ttc" id="namespaceshaka_html_ade3cbb360c0dcaacc5667676af885008"><div class="ttname"><a href="../../d8/daf/namespaceshaka.html#ade3cbb360c0dcaacc5667676af885008">shaka::ValidateWidevineCryptoFlags</a></div><div class="ttdeci">bool ValidateWidevineCryptoFlags()</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d42/widevine__encryption__flags_8cc_source.html#l00075">widevine_encryption_flags.cc:75</a></div></div>
<div class="ttc" id="namespaceshaka_html_a9eab59c66195b54a0f4f2ff67630c2cd"><div class="ttname"><a href="../../d8/daf/namespaceshaka.html#a9eab59c66195b54a0f4f2ff67630c2cd">shaka::ValidateFlag</a></div><div class="ttdeci">bool ValidateFlag(const char *flag_name, const std::string &amp;flag_value, bool condition, bool optional, const char *label)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/dad/validate__flag_8cc_source.html#l00017">validate_flag.cc:17</a></div></div>
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