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<div class="title">decrypt_config.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright (c) 2012 The Chromium Authors. All rights reserved.</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">// Use of this source code is governed by a BSD-style license that can be</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// found in the LICENSE file.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;</div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="preprocessor">#ifndef MEDIA_BASE_DECRYPT_CONFIG_H_</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define MEDIA_BASE_DECRYPT_CONFIG_H_</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="preprocessor">#include &lt;stdint.h&gt;</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;</div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &lt;string&gt;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;</div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &quot;packager/base/macros.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/fourccs.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;<span class="keyword">namespace </span>shaka {</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="keyword">namespace </span>media {</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;</div>
<div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="../../d1/d34/structshaka_1_1media_1_1SubsampleEntry.html"> 28</a></span>&#160;<span class="keyword">struct </span><a class="code" href="../../d1/d34/structshaka_1_1media_1_1SubsampleEntry.html">SubsampleEntry</a> {</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; <a class="code" href="../../d1/d34/structshaka_1_1media_1_1SubsampleEntry.html">SubsampleEntry</a>()</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; : clear_bytes(0), cipher_bytes(0) {}</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; <a class="code" href="../../d1/d34/structshaka_1_1media_1_1SubsampleEntry.html">SubsampleEntry</a>(uint16_t clear_bytes, uint32_t cipher_bytes)</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; : clear_bytes(clear_bytes), cipher_bytes(cipher_bytes) {}</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; uint16_t clear_bytes;</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; uint32_t cipher_bytes;</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;};</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;</div>
<div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="../../de/d49/classshaka_1_1media_1_1DecryptConfig.html"> 40</a></span>&#160;<span class="keyword">class </span><a class="code" href="../../de/d49/classshaka_1_1media_1_1DecryptConfig.html">DecryptConfig</a> {</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="../../de/d49/classshaka_1_1media_1_1DecryptConfig.html#afa140203b87d3e46d5fd94b231734f53"> 43</a></span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> <a class="code" href="../../de/d49/classshaka_1_1media_1_1DecryptConfig.html#afa140203b87d3e46d5fd94b231734f53">kDecryptionKeySize</a> = 16;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <a class="code" href="../../de/d49/classshaka_1_1media_1_1DecryptConfig.html#a24035bb6edcb3aaaa9923bf385376ae5">DecryptConfig</a>(<span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; key_id,</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; iv,</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <span class="keyword">const</span> std::vector&lt;SubsampleEntry&gt;&amp; subsamples);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <a class="code" href="../../de/d49/classshaka_1_1media_1_1DecryptConfig.html#a24035bb6edcb3aaaa9923bf385376ae5">DecryptConfig</a>(<span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; key_id,</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; <span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; iv,</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <span class="keyword">const</span> std::vector&lt;SubsampleEntry&gt;&amp; subsamples,</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; FourCC protection_scheme,</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; uint8_t crypt_byte_block,</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; uint8_t skip_byte_block);</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; ~<a class="code" href="../../de/d49/classshaka_1_1media_1_1DecryptConfig.html">DecryptConfig</a>();</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160;</div>
<div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="../../de/d49/classshaka_1_1media_1_1DecryptConfig.html#a36681ecf1eeb8a4effb0f00b232bda58"> 80</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="../../de/d49/classshaka_1_1media_1_1DecryptConfig.html#a36681ecf1eeb8a4effb0f00b232bda58">AddSubsample</a>(uint16_t clear_bytes, uint32_t cipher_bytes) {</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; subsamples_.emplace_back(clear_bytes, cipher_bytes);</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; }</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <span class="keywordtype">size_t</span> <a class="code" href="../../de/d49/classshaka_1_1media_1_1DecryptConfig.html#a338024925bc46a2f65a058906cdcb4a3">GetTotalSizeOfSubsamples</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; key_id()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> key_id_; }</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; iv()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> iv_; }</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <span class="keyword">const</span> std::vector&lt;SubsampleEntry&gt;&amp; subsamples()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> subsamples_; }</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; FourCC protection_scheme()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> protection_scheme_; }</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; uint8_t crypt_byte_block()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> crypt_byte_block_; }</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; uint8_t skip_byte_block()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> skip_byte_block_; }</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="keyword">const</span> std::vector&lt;uint8_t&gt; key_id_;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <span class="comment">// Initialization vector.</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="keyword">const</span> std::vector&lt;uint8_t&gt; iv_;</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; <span class="comment">// Subsample information. May be empty for some formats, meaning entire frame</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; <span class="comment">// (less data ignored by data_offset_) is encrypted.</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; std::vector&lt;SubsampleEntry&gt; subsamples_;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="keyword">const</span> FourCC protection_scheme_;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; <span class="comment">// For pattern-based protection schemes, like CENS and CBCS.</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; <span class="keyword">const</span> uint8_t crypt_byte_block_;</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="keyword">const</span> uint8_t skip_byte_block_;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160;</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; DISALLOW_COPY_AND_ASSIGN(<a class="code" href="../../de/d49/classshaka_1_1media_1_1DecryptConfig.html#a24035bb6edcb3aaaa9923bf385376ae5">DecryptConfig</a>);</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160;};</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"> 112</span>&#160;} <span class="comment">// namespace media</span></div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160;} <span class="comment">// namespace shaka</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="preprocessor">#endif // MEDIA_BASE_DECRYPT_CONFIG_H_</span></div>
<div class="ttc" id="classshaka_1_1media_1_1DecryptConfig_html_a24035bb6edcb3aaaa9923bf385376ae5"><div class="ttname"><a href="../../de/d49/classshaka_1_1media_1_1DecryptConfig.html#a24035bb6edcb3aaaa9923bf385376ae5">shaka::media::DecryptConfig::DecryptConfig</a></div><div class="ttdeci">DecryptConfig(const std::vector&lt; uint8_t &gt; &amp;key_id, const std::vector&lt; uint8_t &gt; &amp;iv, const std::vector&lt; SubsampleEntry &gt; &amp;subsamples)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d56/decrypt__config_8cc_source.html#l00012">decrypt_config.cc:12</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1DecryptConfig_html"><div class="ttname"><a href="../../de/d49/classshaka_1_1media_1_1DecryptConfig.html">shaka::media::DecryptConfig</a></div><div class="ttdef"><b>Definition:</b> <a href="../../df/dad/decrypt__config_8h_source.html#l00040">decrypt_config.h:40</a></div></div>
<div class="ttc" id="structshaka_1_1media_1_1SubsampleEntry_html"><div class="ttname"><a href="../../d1/d34/structshaka_1_1media_1_1SubsampleEntry.html">shaka::media::SubsampleEntry</a></div><div class="ttdef"><b>Definition:</b> <a href="../../df/dad/decrypt__config_8h_source.html#l00028">decrypt_config.h:28</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1DecryptConfig_html_a338024925bc46a2f65a058906cdcb4a3"><div class="ttname"><a href="../../de/d49/classshaka_1_1media_1_1DecryptConfig.html#a338024925bc46a2f65a058906cdcb4a3">shaka::media::DecryptConfig::GetTotalSizeOfSubsamples</a></div><div class="ttdeci">size_t GetTotalSizeOfSubsamples() const </div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d56/decrypt__config_8cc_source.html#l00034">decrypt_config.cc:34</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1DecryptConfig_html_afa140203b87d3e46d5fd94b231734f53"><div class="ttname"><a href="../../de/d49/classshaka_1_1media_1_1DecryptConfig.html#afa140203b87d3e46d5fd94b231734f53">shaka::media::DecryptConfig::kDecryptionKeySize</a></div><div class="ttdeci">static const size_t kDecryptionKeySize</div><div class="ttdoc">Keys are always 128 bits. </div><div class="ttdef"><b>Definition:</b> <a href="../../df/dad/decrypt__config_8h_source.html#l00043">decrypt_config.h:43</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1DecryptConfig_html_a36681ecf1eeb8a4effb0f00b232bda58"><div class="ttname"><a href="../../de/d49/classshaka_1_1media_1_1DecryptConfig.html#a36681ecf1eeb8a4effb0f00b232bda58">shaka::media::DecryptConfig::AddSubsample</a></div><div class="ttdeci">void AddSubsample(uint16_t clear_bytes, uint32_t cipher_bytes)</div><div class="ttdef"><b>Definition:</b> <a href="../../df/dad/decrypt__config_8h_source.html#l00080">decrypt_config.h:80</a></div></div>
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