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<div class="title">key_rotation_fragmenter.h</div> </div>
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2014 Google Inc. All rights reserved.</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Use of this source code is governed by a BSD-style</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// license that can be found in the LICENSE file or at</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#ifndef MEDIA_FORMATS_MP4_KEY_ROTATION_FRAGMENTER_H_</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor"></span><span class="preprocessor">#define MEDIA_FORMATS_MP4_KEY_ROTATION_FRAGMENTER_H_</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "packager/media/base/fourccs.h"</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "packager/media/base/key_source.h"</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "packager/media/event/muxer_listener.h"</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "packager/media/formats/mp4/encrypting_fragmenter.h"</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">namespace </span>shaka {</div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">namespace </span>mp4 {</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">struct </span>MovieFragment;</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div>
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<div class="line"><a name="l00023"></a><span class="lineno"><a class="line" href="../../d2/d29/classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter.html"> 23</a></span> <span class="keyword">class </span><a class="code" href="../../d2/d29/classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter.html">KeyRotationFragmenter</a> : <span class="keyword">public</span> <a class="code" href="../../dc/df3/classshaka_1_1media_1_1mp4_1_1EncryptingFragmenter.html">EncryptingFragmenter</a> {</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <a class="code" href="../../d2/d29/classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter.html#ad0d22ca7f2d0a3d9d9158242394f235c">KeyRotationFragmenter</a>(<a class="code" href="../../d9/d1f/structshaka_1_1media_1_1mp4_1_1MovieFragment.html">MovieFragment</a>* moof,</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  scoped_refptr<StreamInfo> info,</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <a class="code" href="../../df/d7b/structshaka_1_1media_1_1mp4_1_1TrackFragment.html">TrackFragment</a>* traf,</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <a class="code" href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html">KeySource</a>* encryption_key_source,</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  KeySource::TrackType track_type,</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  int64_t crypto_period_duration,</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  int64_t clear_time,</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  FourCC protection_scheme,</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  uint8_t crypt_byte_block,</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  uint8_t skip_byte_block,</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <a class="code" href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html">MuxerListener</a>* muxer_listener);</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  ~<a class="code" href="../../d2/d29/classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter.html">KeyRotationFragmenter</a>() <span class="keyword">override</span>;</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keyword">protected</span>:</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../d2/d29/classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter.html#a3bdb3a237cb8eb1484ee98e195d290a7">PrepareFragmentForEncryption</a>(<span class="keywordtype">bool</span> enable_encryption) <span class="keyword">override</span>;</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="../../d9/d1f/structshaka_1_1media_1_1mp4_1_1MovieFragment.html">MovieFragment</a>* moof_;</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <a class="code" href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html">KeySource</a>* encryption_key_source_;</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  KeySource::TrackType track_type_;</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">const</span> int64_t crypto_period_duration_;</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">size_t</span> prev_crypto_period_index_;</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="comment">// For notifying new pssh boxes to the event handler.</span></div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <a class="code" href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html">MuxerListener</a>* <span class="keyword">const</span> muxer_listener_;</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>  DISALLOW_COPY_AND_ASSIGN(<a class="code" href="../../d2/d29/classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter.html">KeyRotationFragmenter</a>);</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> };</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> } <span class="comment">// namespace mp4</span></div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> } <span class="comment">// namespace shaka</span></div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor">#endif // MEDIA_FORMATS_MP4_KEY_ROTATION_FRAGMENTER_H_</span></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter_html_ad0d22ca7f2d0a3d9d9158242394f235c"><div class="ttname"><a href="../../d2/d29/classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter.html#ad0d22ca7f2d0a3d9d9158242394f235c">shaka::media::mp4::KeyRotationFragmenter::KeyRotationFragmenter</a></div><div class="ttdeci">KeyRotationFragmenter(MovieFragment *moof, scoped_refptr< StreamInfo > info, TrackFragment *traf, KeySource *encryption_key_source, KeySource::TrackType track_type, int64_t crypto_period_duration, int64_t clear_time, FourCC protection_scheme, uint8_t crypt_byte_block, uint8_t skip_byte_block, MuxerListener *muxer_listener)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d15/key__rotation__fragmenter_8cc_source.html#l00020">key_rotation_fragmenter.cc:20</a></div></div>
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<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1TrackFragment_html"><div class="ttname"><a href="../../df/d7b/structshaka_1_1media_1_1mp4_1_1TrackFragment.html">shaka::media::mp4::TrackFragment</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00728">box_definitions.h:728</a></div></div>
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<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1MovieFragment_html"><div class="ttname"><a href="../../d9/d1f/structshaka_1_1media_1_1mp4_1_1MovieFragment.html">shaka::media::mp4::MovieFragment</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00742">box_definitions.h:742</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1EncryptingFragmenter_html"><div class="ttname"><a href="../../dc/df3/classshaka_1_1media_1_1mp4_1_1EncryptingFragmenter.html">shaka::media::mp4::EncryptingFragmenter</a></div><div class="ttdoc">EncryptingFragmenter generates MP4 fragments with sample encrypted. </div><div class="ttdef"><b>Definition:</b> <a href="../../d1/dcb/encrypting__fragmenter_8h_source.html#l00027">encrypting_fragmenter.h:27</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#l00075">status.h:75</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1KeySource_html"><div class="ttname"><a href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html">shaka::media::KeySource</a></div><div class="ttdoc">KeySource is responsible for encryption key acquisition. </div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d3f/key__source_8h_source.html#l00031">key_source.h:31</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter_html"><div class="ttname"><a href="../../d2/d29/classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter.html">shaka::media::mp4::KeyRotationFragmenter</a></div><div class="ttdef"><b>Definition:</b> <a href="../../da/d22/key__rotation__fragmenter_8h_source.html#l00023">key_rotation_fragmenter.h:23</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter_html_a3bdb3a237cb8eb1484ee98e195d290a7"><div class="ttname"><a href="../../d2/d29/classshaka_1_1media_1_1mp4_1_1KeyRotationFragmenter.html#a3bdb3a237cb8eb1484ee98e195d290a7">shaka::media::mp4::KeyRotationFragmenter::PrepareFragmentForEncryption</a></div><div class="ttdeci">Status PrepareFragmentForEncryption(bool enable_encryption) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d15/key__rotation__fragmenter_8cc_source.html#l00050">key_rotation_fragmenter.cc:50</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1MuxerListener_html"><div class="ttname"><a href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html">shaka::media::MuxerListener</a></div><div class="ttdef"><b>Definition:</b> <a href="../../de/dfa/muxer__listener_8h_source.html#l00030">muxer_listener.h:30</a></div></div>
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