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<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>
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<div class="title">fixed_key_source.cc</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2016 Google Inc. All rights reserved.</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Use of this source code is governed by a BSD-style</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// license that can be found in the LICENSE file or at</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include "packager/media/base/fixed_key_source.h"</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <algorithm></span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "packager/base/logging.h"</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "packager/base/strings/string_number_conversions.h"</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="keyword">namespace </span>shaka {</div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> FixedKeySource::~FixedKeySource() {}</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div>
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<div class="line"><a name="l00018"></a><span class="lineno"><a class="line" href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#a358b0955ecec61e6ce23611e2772265b"> 18</a></span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#a358b0955ecec61e6ce23611e2772265b">FixedKeySource::FetchKeys</a>(<span class="keyword">const</span> std::vector<uint8_t>& pssh_box) {</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  <span class="comment">// Do nothing for fixed key encryption/decryption.</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <span class="keywordflow">return</span> Status::OK;</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> }</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
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<div class="line"><a name="l00023"></a><span class="lineno"><a class="line" href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#aab2d8d84067ae5e778e3c242fec6dcb1"> 23</a></span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#a358b0955ecec61e6ce23611e2772265b">FixedKeySource::FetchKeys</a>(</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keyword">const</span> std::vector<std::vector<uint8_t>>& key_ids) {</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="comment">// Do nothing for fixed key encryption/decryption.</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keywordflow">return</span> Status::OK;</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> }</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
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<div class="line"><a name="l00029"></a><span class="lineno"><a class="line" href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#a4dd894ee7e68340771d34bb81dce0ae5"> 29</a></span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#a358b0955ecec61e6ce23611e2772265b">FixedKeySource::FetchKeys</a>(uint32_t asset_id) {</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="comment">// Do nothing for fixed key encryption/decryption.</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keywordflow">return</span> Status::OK;</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> }</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
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<div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#a267d1f36d1c015fd5e8c20b93f270d0a"> 34</a></span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#a267d1f36d1c015fd5e8c20b93f270d0a">FixedKeySource::GetKey</a>(TrackType track_type, <a class="code" href="../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html">EncryptionKey</a>* key) {</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  DCHECK(key);</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  DCHECK(encryption_key_);</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  *key = *encryption_key_;</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordflow">return</span> Status::OK;</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> }</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div>
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<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#a58f9eae1ce9148a82f70118879b6c3f1"> 41</a></span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#a267d1f36d1c015fd5e8c20b93f270d0a">FixedKeySource::GetKey</a>(<span class="keyword">const</span> std::vector<uint8_t>& key_id,</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <a class="code" href="../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html">EncryptionKey</a>* key) {</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  DCHECK(key);</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  DCHECK(encryption_key_);</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">if</span> (key_id != encryption_key_->key_id) {</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">return</span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a>(error::NOT_FOUND,</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  std::string(<span class="stringliteral">"Key for key ID "</span>) +</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  base::HexEncode(&key_id[0], key_id.size()) +</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="stringliteral">" was not found."</span>);</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  }</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  *key = *encryption_key_;</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">return</span> Status::OK;</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> }</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div>
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<div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#afa9abf3a9104cbcb4711eac65c8a5bdf"> 55</a></span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#afa9abf3a9104cbcb4711eac65c8a5bdf">FixedKeySource::GetCryptoPeriodKey</a>(uint32_t crypto_period_index,</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  TrackType track_type,</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <a class="code" href="../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html">EncryptionKey</a>* key) {</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="comment">// Create a copy of the key.</span></div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  *key = *encryption_key_;</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="comment">// A naive key rotation algorithm is implemented here by left rotating the</span></div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="comment">// key, key_id and pssh. Note that this implementation is only intended for</span></div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="comment">// testing purpose. The actual key rotation algorithm can be much more</span></div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="comment">// complicated.</span></div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  LOG(WARNING)</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  << <span class="stringliteral">"This naive key rotation algorithm should not be used in production."</span>;</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  std::rotate(key->key_id.begin(),</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  key->key_id.begin() + (crypto_period_index % key->key_id.size()),</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  key->key_id.end());</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  std::rotate(key->key.begin(),</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  key->key.begin() + (crypto_period_index % key->key.size()),</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  key->key.end());</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < key->key_system_info.size(); i++) {</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  std::vector<uint8_t> pssh_data = key->key_system_info[i].pssh_data();</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">if</span> (!pssh_data.empty()) {</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  std::rotate(pssh_data.begin(),</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  pssh_data.begin() + (crypto_period_index % pssh_data.size()),</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  pssh_data.end());</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  key->key_system_info[i].set_pssh_data(pssh_data);</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  }</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  }</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">return</span> Status::OK;</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> }</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div>
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<div class="line"><a name="l00087"></a><span class="lineno"><a class="line" href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#a9a91ba439d785022a1e2ceeaa9ebe81a"> 87</a></span> std::unique_ptr<FixedKeySource> <a class="code" href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#a9a91ba439d785022a1e2ceeaa9ebe81a">FixedKeySource::CreateFromHexStrings</a>(</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keyword">const</span> std::string& key_id_hex,</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keyword">const</span> std::string& key_hex,</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keyword">const</span> std::string& pssh_boxes_hex,</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keyword">const</span> std::string& iv_hex) {</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  std::unique_ptr<EncryptionKey> encryption_key(<span class="keyword">new</span> <a class="code" href="../../dd/dbd/structshaka_1_1media_1_1EncryptionKey.html">EncryptionKey</a>());</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">if</span> (!base::HexStringToBytes(key_id_hex, &encryption_key->key_id)) {</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  LOG(ERROR) << <span class="stringliteral">"Cannot parse key_id_hex "</span> << key_id_hex;</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> std::unique_ptr<FixedKeySource>();</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (encryption_key->key_id.size() != 16) {</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  LOG(ERROR) << <span class="stringliteral">"Invalid key ID size '"</span> << encryption_key->key_id.size()</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  << <span class="stringliteral">"', must be 16 bytes."</span>;</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">return</span> std::unique_ptr<FixedKeySource>();</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  }</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">if</span> (!base::HexStringToBytes(key_hex, &encryption_key->key)) {</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  LOG(ERROR) << <span class="stringliteral">"Cannot parse key_hex "</span> << key_hex;</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">return</span> std::unique_ptr<FixedKeySource>();</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  }</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  std::vector<uint8_t> pssh_boxes;</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">if</span> (!pssh_boxes_hex.empty() &&</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  !base::HexStringToBytes(pssh_boxes_hex, &pssh_boxes)) {</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  LOG(ERROR) << <span class="stringliteral">"Cannot parse pssh_hex "</span> << pssh_boxes_hex;</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">return</span> std::unique_ptr<FixedKeySource>();</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  }</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">if</span> (!iv_hex.empty()) {</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">if</span> (!base::HexStringToBytes(iv_hex, &encryption_key->iv)) {</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  LOG(ERROR) << <span class="stringliteral">"Cannot parse iv_hex "</span> << iv_hex;</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">return</span> std::unique_ptr<FixedKeySource>();</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  }</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  }</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../d0/dd4/classshaka_1_1media_1_1ProtectionSystemSpecificInfo.html#aa984e27d2655a451ea87ff0a4ddd8b79">ProtectionSystemSpecificInfo::ParseBoxes</a>(</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  pssh_boxes.data(), pssh_boxes.size(),</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  &encryption_key->key_system_info)) {</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  LOG(ERROR) << <span class="stringliteral">"--pssh argument should be full PSSH boxes."</span>;</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">return</span> std::unique_ptr<FixedKeySource>();</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  }</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="comment">// If there aren't any PSSH boxes given, create one with the common system ID.</span></div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">if</span> (encryption_key->key_system_info.size() == 0) {</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <a class="code" href="../../d0/dd4/classshaka_1_1media_1_1ProtectionSystemSpecificInfo.html">ProtectionSystemSpecificInfo</a> info;</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  info.add_key_id(encryption_key->key_id);</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  info.set_system_id(kCommonSystemId, arraysize(kCommonSystemId));</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  info.set_pssh_box_version(1);</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  encryption_key->key_system_info.push_back(info);</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  }</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">return</span> std::unique_ptr<FixedKeySource>(</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keyword">new</span> <a class="code" href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html">FixedKeySource</a>(std::move(encryption_key)));</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> }</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> FixedKeySource::FixedKeySource() {}</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> FixedKeySource::FixedKeySource(std::unique_ptr<EncryptionKey> key)</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  : encryption_key_(std::move(key)) {}</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> } <span class="comment">// namespace shaka</span></div>
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<div class="ttc" id="classshaka_1_1media_1_1FixedKeySource_html_a358b0955ecec61e6ce23611e2772265b"><div class="ttname"><a href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#a358b0955ecec61e6ce23611e2772265b">shaka::media::FixedKeySource::FetchKeys</a></div><div class="ttdeci">Status FetchKeys(const std::vector< uint8_t > &pssh_box) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d6b/fixed__key__source_8cc_source.html#l00018">fixed_key_source.cc:18</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1FixedKeySource_html_a9a91ba439d785022a1e2ceeaa9ebe81a"><div class="ttname"><a href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#a9a91ba439d785022a1e2ceeaa9ebe81a">shaka::media::FixedKeySource::CreateFromHexStrings</a></div><div class="ttdeci">static std::unique_ptr< FixedKeySource > CreateFromHexStrings(const std::string &key_id_hex, const std::string &key_hex, const std::string &pssh_boxes_hex, const std::string &iv_hex)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d6b/fixed__key__source_8cc_source.html#l00087">fixed_key_source.cc:87</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1ProtectionSystemSpecificInfo_html_aa984e27d2655a451ea87ff0a4ddd8b79"><div class="ttname"><a href="../../d0/dd4/classshaka_1_1media_1_1ProtectionSystemSpecificInfo.html#aa984e27d2655a451ea87ff0a4ddd8b79">shaka::media::ProtectionSystemSpecificInfo::ParseBoxes</a></div><div class="ttdeci">static bool ParseBoxes(const uint8_t *data, size_t data_size, std::vector< ProtectionSystemSpecificInfo > *pssh_boxes)</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d42/protection__system__specific__info_8cc_source.html#l00025">protection_system_specific_info.cc:25</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1FixedKeySource_html"><div class="ttname"><a href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html">shaka::media::FixedKeySource</a></div><div class="ttdoc">A key source that uses fixed keys for encryption. </div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d72/fixed__key__source_8h_source.html#l00027">fixed_key_source.h:27</a></div></div>
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<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>
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<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>
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<div class="ttc" id="classshaka_1_1media_1_1FixedKeySource_html_a267d1f36d1c015fd5e8c20b93f270d0a"><div class="ttname"><a href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#a267d1f36d1c015fd5e8c20b93f270d0a">shaka::media::FixedKeySource::GetKey</a></div><div class="ttdeci">Status GetKey(TrackType track_type, EncryptionKey *key) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d6b/fixed__key__source_8cc_source.html#l00034">fixed_key_source.cc:34</a></div></div>
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<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#l00085">status.h:85</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1FixedKeySource_html_afa9abf3a9104cbcb4711eac65c8a5bdf"><div class="ttname"><a href="../../d0/dac/classshaka_1_1media_1_1FixedKeySource.html#afa9abf3a9104cbcb4711eac65c8a5bdf">shaka::media::FixedKeySource::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="../../d3/d6b/fixed__key__source_8cc_source.html#l00055">fixed_key_source.cc:55</a></div></div>
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