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<div class="title">ts_segmenter.cc</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 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/formats/mp2t/ts_segmenter.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 <memory></span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</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/aes_encryptor.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/base/key_source.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/base/muxer_util.h"</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "packager/media/base/status.h"</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "packager/media/base/video_stream_info.h"</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "packager/media/event/muxer_listener.h"</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "packager/media/event/progress_listener.h"</span></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">namespace </span>shaka {</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">namespace </span>mp2t {</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"> 23</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">const</span> <span class="keywordtype">double</span> kTsTimescale = 90000;</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> } <span class="comment">// namespace</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div>
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<div class="line"><a name="l00027"></a><span class="lineno"><a class="line" href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#af0e91f691388ecffb8a473554707c917"> 27</a></span> <a class="code" href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#af0e91f691388ecffb8a473554707c917">TsSegmenter::TsSegmenter</a>(<span class="keyword">const</span> <a class="code" href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html">MuxerOptions</a>& options, <a class="code" href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html">MuxerListener</a>* listener)</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  : muxer_options_(options),</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  listener_(listener),</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  ts_writer_(new <a class="code" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html">TsWriter</a>()),</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  pes_packet_generator_(new <a class="code" href="../../d5/de0/classshaka_1_1media_1_1mp2t_1_1PesPacketGenerator.html">PesPacketGenerator</a>()) {}</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> TsSegmenter::~TsSegmenter() {}</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="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#acfb51e2e6163e7ae3c4fb62bda437466"> 34</a></span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#acfb51e2e6163e7ae3c4fb62bda437466">TsSegmenter::Initialize</a>(<span class="keyword">const</span> <a class="code" href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html">StreamInfo</a>& stream_info,</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</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="l00036"></a><span class="lineno"> 36</span>  uint32_t max_sd_pixels,</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  uint32_t max_hd_pixels,</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  uint32_t max_uhd1_pixels,</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordtype">double</span> clear_lead_in_seconds) {</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordflow">if</span> (muxer_options_.<a class="code" href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#ab98cfd28046fc5c52ab2a45dba1a339a">segment_template</a>.empty())</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordflow">return</span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a>(error::MUXER_FAILURE, <span class="stringliteral">"Segment template not specified."</span>);</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordflow">if</span> (!ts_writer_->Initialize(stream_info))</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">return</span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a>(error::MUXER_FAILURE, <span class="stringliteral">"Failed to initialize TsWriter."</span>);</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">if</span> (!pes_packet_generator_->Initialize(stream_info)) {</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">return</span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a>(error::MUXER_FAILURE,</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="stringliteral">"Failed to initialize PesPacketGenerator."</span>);</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  }</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">if</span> (encryption_key_source) {</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</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="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">const</span> KeySource::TrackType type =</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  GetTrackTypeForEncryption(stream_info, max_sd_pixels,</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  max_hd_pixels, max_uhd1_pixels);</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> status = encryption_key_source-><a class="code" href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html#a994eb66cf09d8b08fd1c964f6afd3ab3">GetKey</a>(type, encryption_key.get());</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">if</span> (encryption_key->iv.empty()) {</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../df/d87/classshaka_1_1media_1_1AesCryptor.html#a40d9a82d274d6fbaee5346328f11dedd">AesCryptor::GenerateRandomIv</a>(FOURCC_cbcs, &encryption_key->iv)) {</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordflow">return</span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a>(error::INTERNAL_ERROR, <span class="stringliteral">"Failed to generate random iv."</span>);</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</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="keywordflow">if</span> (!status.ok())</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">return</span> status;</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  encryption_key_ = std::move(encryption_key);</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  clear_lead_in_seconds_ = clear_lead_in_seconds;</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">if</span> (listener_) {</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">// For now this only happens once, so send true.</span></div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> kIsInitialEncryptionInfo = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  listener_-><a class="code" href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html#ab521acca727bbe01aa15c751325c0001">OnEncryptionInfoReady</a>(</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  kIsInitialEncryptionInfo, FOURCC_cbcs, encryption_key_->key_id,</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  encryption_key_->iv, encryption_key_->key_system_info);</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> </div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  status = NotifyEncrypted();</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">if</span> (!status.ok())</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">return</span> status;</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  }</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  timescale_scale_ = kTsTimescale / stream_info.time_scale();</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">return</span> Status::OK;</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"><a class="line" href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#ac92da7c996e2a270fd704facc8f7a149"> 84</a></span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#ac92da7c996e2a270fd704facc8f7a149">TsSegmenter::Finalize</a>() {</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">return</span> Flush();</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"> 87</span> </div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment">// First checks whether the sample is a key frame. If so and the segment has</span></div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment">// passed the segment duration, then flush the generator and write all the data</span></div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment">// to file.</span></div>
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<div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#a16a92ce0a4d60e502135f89c4b7ffc9b"> 91</a></span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> <a class="code" href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#a16a92ce0a4d60e502135f89c4b7ffc9b">TsSegmenter::AddSample</a>(std::shared_ptr<MediaSample> sample) {</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> passed_segment_duration =</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  current_segment_total_sample_duration_ > muxer_options_.<a class="code" href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a4e98ad5fc7bbc2df0cb95df3f1db9687">segment_duration</a>;</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">if</span> (sample->is_key_frame() && passed_segment_duration) {</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> status = Flush();</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">if</span> (!status.ok())</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">return</span> status;</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  }</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">if</span> (!ts_writer_file_opened_ && !sample->is_key_frame())</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  LOG(WARNING) << <span class="stringliteral">"A segment will start with a non key frame."</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> (!pes_packet_generator_->PushSample(sample)) {</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">return</span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a>(error::MUXER_FAILURE,</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="stringliteral">"Failed to add sample to PesPacketGenerator."</span>);</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>  <span class="keyword">const</span> <span class="keywordtype">double</span> scaled_sample_duration = sample->duration() * timescale_scale_;</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  current_segment_total_sample_duration_ +=</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  scaled_sample_duration / kTsTimescale;</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">return</span> WritePesPacketsToFile();</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"><a class="line" href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#ae3ed0f86d2163444e24a2577e35517a9"> 115</a></span> <span class="keywordtype">void</span> <a class="code" href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#ae3ed0f86d2163444e24a2577e35517a9">TsSegmenter::InjectTsWriterForTesting</a>(std::unique_ptr<TsWriter> writer) {</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  ts_writer_ = std::move(writer);</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> }</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div>
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<div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#abb78b18426643d58bc44ea61823dc29c"> 119</a></span> <span class="keywordtype">void</span> <a class="code" href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#abb78b18426643d58bc44ea61823dc29c">TsSegmenter::InjectPesPacketGeneratorForTesting</a>(</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  std::unique_ptr<PesPacketGenerator> generator) {</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  pes_packet_generator_ = std::move(generator);</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> }</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
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<div class="line"><a name="l00124"></a><span class="lineno"><a class="line" href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#a34ab9fbaee43115d68be87e4b9e90918"> 124</a></span> <span class="keywordtype">void</span> <a class="code" href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#a34ab9fbaee43115d68be87e4b9e90918">TsSegmenter::SetTsWriterFileOpenedForTesting</a>(<span class="keywordtype">bool</span> value) {</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  ts_writer_file_opened_ = value;</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> }</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> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> TsSegmenter::OpenNewSegmentIfClosed(uint32_t next_pts) {</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">if</span> (ts_writer_file_opened_)</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">return</span> Status::OK;</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keyword">const</span> std::string segment_name =</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  GetSegmentName(muxer_options_.<a class="code" href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#ab98cfd28046fc5c52ab2a45dba1a339a">segment_template</a>, next_pts,</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  segment_number_++, muxer_options_.<a class="code" href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a930587b1f3a3e38cf1e7974f01d8ce1e">bandwidth</a>);</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">if</span> (!ts_writer_->NewSegment(segment_name))</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">return</span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a>(error::MUXER_FAILURE, <span class="stringliteral">"Failed to initilize TsPacketWriter."</span>);</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  current_segment_start_time_ = next_pts;</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  current_segment_path_ = segment_name;</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  ts_writer_file_opened_ = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">return</span> Status::OK;</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> }</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> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> TsSegmenter::WritePesPacketsToFile() {</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">while</span> (pes_packet_generator_->NumberOfReadyPesPackets() > 0u) {</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  std::unique_ptr<PesPacket> pes_packet =</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  pes_packet_generator_->GetNextPesPacket();</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>  <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> status = OpenNewSegmentIfClosed(pes_packet->pts());</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">if</span> (!status.ok())</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">return</span> status;</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">if</span> (!ts_writer_->AddPesPacket(std::move(pes_packet)))</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">return</span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a>(error::MUXER_FAILURE, <span class="stringliteral">"Failed to add PES packet."</span>);</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  }</div>
|
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">return</span> Status::OK;</div>
|
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> }</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> Status TsSegmenter::Flush() {</div>
|
|
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">if</span> (!pes_packet_generator_->Flush()) {</div>
|
|
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">return</span> Status(error::MUXER_FAILURE,</div>
|
|
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="stringliteral">"Failed to flush PesPacketGenerator."</span>);</div>
|
|
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  }</div>
|
|
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  Status status = WritePesPacketsToFile();</div>
|
|
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">if</span> (!status.ok())</div>
|
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">return</span> status;</div>
|
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="comment">// This method may be called from Finalize() so ts_writer_file_opened_ could</span></div>
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|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="comment">// be false.</span></div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">if</span> (ts_writer_file_opened_) {</div>
|
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">if</span> (!ts_writer_->FinalizeSegment()) {</div>
|
|
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">return</span> Status(error::MUXER_FAILURE, <span class="stringliteral">"Failed to finalize TsWriter."</span>);</div>
|
|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  }</div>
|
|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">if</span> (listener_) {</div>
|
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keyword">const</span> int64_t file_size =</div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <a class="code" href="../../d3/d61/classshaka_1_1media_1_1File.html#a6981994874ee5832e3394744fd51fd79">File::GetFileSize</a>(current_segment_path_.c_str());</div>
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|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  listener_-><a class="code" href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html#a4cb75da6ff50d6403da18ea8dcc04265">OnNewSegment</a>(</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  current_segment_path_, current_segment_start_time_,</div>
|
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  current_segment_total_sample_duration_ * kTsTimescale, file_size);</div>
|
|
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  }</div>
|
|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  ts_writer_file_opened_ = <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  total_duration_in_seconds_ += current_segment_total_sample_duration_;</div>
|
|
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  }</div>
|
|
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  current_segment_total_sample_duration_ = 0.0;</div>
|
|
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  current_segment_start_time_ = 0;</div>
|
|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  current_segment_path_.clear();</div>
|
|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">return</span> NotifyEncrypted();</div>
|
|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> }</div>
|
|
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> </div>
|
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> Status TsSegmenter::NotifyEncrypted() {</div>
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">if</span> (encryption_key_ && total_duration_in_seconds_ >= clear_lead_in_seconds_) {</div>
|
|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">if</span> (listener_)</div>
|
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  listener_-><a class="code" href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html#a897463091f0effa647a8e2822f48b2ee">OnEncryptionStart</a>();</div>
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|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> </div>
|
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">if</span> (!pes_packet_generator_->SetEncryptionKey(std::move(encryption_key_)))</div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">return</span> Status(error::INTERNAL_ERROR, <span class="stringliteral">"Failed to set encryption key."</span>);</div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  ts_writer_->SignalEncrypted();</div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  }</div>
|
|
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">return</span> Status::OK;</div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> }</div>
|
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> </div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> } <span class="comment">// namespace mp2t</span></div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> } <span class="comment">// namespace media</span></div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> } <span class="comment">// namespace shaka</span></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1MuxerListener_html_a4cb75da6ff50d6403da18ea8dcc04265"><div class="ttname"><a href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html#a4cb75da6ff50d6403da18ea8dcc04265">shaka::media::MuxerListener::OnNewSegment</a></div><div class="ttdeci">virtual void OnNewSegment(const std::string &segment_name, uint64_t start_time, uint64_t duration, uint64_t segment_file_size)=0</div></div>
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|
<div class="ttc" id="classshaka_1_1media_1_1MuxerListener_html_ab521acca727bbe01aa15c751325c0001"><div class="ttname"><a href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html#ab521acca727bbe01aa15c751325c0001">shaka::media::MuxerListener::OnEncryptionInfoReady</a></div><div class="ttdeci">virtual void OnEncryptionInfoReady(bool is_initial_encryption_info, FourCC protection_scheme, const std::vector< uint8_t > &key_id, const std::vector< uint8_t > &iv, const std::vector< ProtectionSystemSpecificInfo > &key_system_info)=0</div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1PesPacketGenerator_html"><div class="ttname"><a href="../../d5/de0/classshaka_1_1media_1_1mp2t_1_1PesPacketGenerator.html">shaka::media::mp2t::PesPacketGenerator</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d88/pes__packet__generator_8h_source.html#l00031">pes_packet_generator.h:31</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1StreamInfo_html"><div class="ttname"><a href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html">shaka::media::StreamInfo</a></div><div class="ttdoc">Abstract class holds stream information. </div><div class="ttdef"><b>Definition:</b> <a href="../../d8/daa/stream__info_8h_source.html#l00057">stream_info.h:57</a></div></div>
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|
<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1TsSegmenter_html_ac92da7c996e2a270fd704facc8f7a149"><div class="ttname"><a href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#ac92da7c996e2a270fd704facc8f7a149">shaka::media::mp2t::TsSegmenter::Finalize</a></div><div class="ttdeci">Status Finalize()</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/de9/ts__segmenter_8cc_source.html#l00084">ts_segmenter.cc:84</a></div></div>
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|
<div class="ttc" id="classshaka_1_1media_1_1MuxerListener_html_a897463091f0effa647a8e2822f48b2ee"><div class="ttname"><a href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html#a897463091f0effa647a8e2822f48b2ee">shaka::media::MuxerListener::OnEncryptionStart</a></div><div class="ttdeci">virtual void OnEncryptionStart()=0</div></div>
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|
<div class="ttc" id="structshaka_1_1media_1_1MuxerOptions_html"><div class="ttname"><a href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html">shaka::media::MuxerOptions</a></div><div class="ttdoc">This structure contains the list of configuration options for Muxer. </div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d0e/muxer__options_8h_source.html#l00018">muxer_options.h:18</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1KeySource_html_a994eb66cf09d8b08fd1c964f6afd3ab3"><div class="ttname"><a href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html#a994eb66cf09d8b08fd1c964f6afd3ab3">shaka::media::KeySource::GetKey</a></div><div class="ttdeci">virtual Status GetKey(TrackType track_type, EncryptionKey *key)=0</div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1TsSegmenter_html_a16a92ce0a4d60e502135f89c4b7ffc9b"><div class="ttname"><a href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#a16a92ce0a4d60e502135f89c4b7ffc9b">shaka::media::mp2t::TsSegmenter::AddSample</a></div><div class="ttdeci">Status AddSample(std::shared_ptr< MediaSample > sample)</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/de9/ts__segmenter_8cc_source.html#l00091">ts_segmenter.cc:91</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1TsSegmenter_html_af0e91f691388ecffb8a473554707c917"><div class="ttname"><a href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#af0e91f691388ecffb8a473554707c917">shaka::media::mp2t::TsSegmenter::TsSegmenter</a></div><div class="ttdeci">TsSegmenter(const MuxerOptions &options, MuxerListener *listener)</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/de9/ts__segmenter_8cc_source.html#l00027">ts_segmenter.cc: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_1AesCryptor_html_a40d9a82d274d6fbaee5346328f11dedd"><div class="ttname"><a href="../../df/d87/classshaka_1_1media_1_1AesCryptor.html#a40d9a82d274d6fbaee5346328f11dedd">shaka::media::AesCryptor::GenerateRandomIv</a></div><div class="ttdeci">static bool GenerateRandomIv(FourCC protection_scheme, std::vector< uint8_t > *iv)</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d55/aes__cryptor_8cc_source.html#l00107">aes_cryptor.cc:107</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1TsSegmenter_html_abb78b18426643d58bc44ea61823dc29c"><div class="ttname"><a href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#abb78b18426643d58bc44ea61823dc29c">shaka::media::mp2t::TsSegmenter::InjectPesPacketGeneratorForTesting</a></div><div class="ttdeci">void InjectPesPacketGeneratorForTesting(std::unique_ptr< PesPacketGenerator > generator)</div><div class="ttdoc">Only for testing. </div><div class="ttdef"><b>Definition:</b> <a href="../../d6/de9/ts__segmenter_8cc_source.html#l00119">ts_segmenter.cc:119</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1TsSegmenter_html_a34ab9fbaee43115d68be87e4b9e90918"><div class="ttname"><a href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#a34ab9fbaee43115d68be87e4b9e90918">shaka::media::mp2t::TsSegmenter::SetTsWriterFileOpenedForTesting</a></div><div class="ttdeci">void SetTsWriterFileOpenedForTesting(bool value)</div><div class="ttdoc">Only for testing. </div><div class="ttdef"><b>Definition:</b> <a href="../../d6/de9/ts__segmenter_8cc_source.html#l00124">ts_segmenter.cc:124</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1TsSegmenter_html_ae3ed0f86d2163444e24a2577e35517a9"><div class="ttname"><a href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#ae3ed0f86d2163444e24a2577e35517a9">shaka::media::mp2t::TsSegmenter::InjectTsWriterForTesting</a></div><div class="ttdeci">void InjectTsWriterForTesting(std::unique_ptr< TsWriter > writer)</div><div class="ttdoc">Only for testing. </div><div class="ttdef"><b>Definition:</b> <a href="../../d6/de9/ts__segmenter_8cc_source.html#l00115">ts_segmenter.cc:115</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1TsSegmenter_html_acfb51e2e6163e7ae3c4fb62bda437466"><div class="ttname"><a href="../../de/dde/classshaka_1_1media_1_1mp2t_1_1TsSegmenter.html#acfb51e2e6163e7ae3c4fb62bda437466">shaka::media::mp2t::TsSegmenter::Initialize</a></div><div class="ttdeci">Status Initialize(const StreamInfo &stream_info, KeySource *encryption_key_source, uint32_t max_sd_pixels, uint32_t max_hd_pixels, uint32_t max_uhd1_pixels, double clear_lead_in_seconds)</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/de9/ts__segmenter_8cc_source.html#l00034">ts_segmenter.cc:34</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1TsWriter_html"><div class="ttname"><a href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html">shaka::media::mp2t::TsWriter</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d8/dca/ts__writer_8h_source.html#l00028">ts_writer.h:28</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1File_html_a6981994874ee5832e3394744fd51fd79"><div class="ttname"><a href="../../d3/d61/classshaka_1_1media_1_1File.html#a6981994874ee5832e3394744fd51fd79">shaka::media::File::GetFileSize</a></div><div class="ttdeci">static int64_t GetFileSize(const char *file_name)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/dfc/file_8cc_source.html#l00176">file.cc:176</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_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#l00030">key_source.h:30</a></div></div>
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<div class="ttc" id="structshaka_1_1media_1_1MuxerOptions_html_a4e98ad5fc7bbc2df0cb95df3f1db9687"><div class="ttname"><a href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a4e98ad5fc7bbc2df0cb95df3f1db9687">shaka::media::MuxerOptions::segment_duration</a></div><div class="ttdeci">double segment_duration</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d0e/muxer__options_8h_source.html#l00026">muxer_options.h:26</a></div></div>
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<div class="ttc" id="structshaka_1_1media_1_1MuxerOptions_html_a930587b1f3a3e38cf1e7974f01d8ce1e"><div class="ttname"><a href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a930587b1f3a3e38cf1e7974f01d8ce1e">shaka::media::MuxerOptions::bandwidth</a></div><div class="ttdeci">uint32_t bandwidth</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d0e/muxer__options_8h_source.html#l00071">muxer_options.h:71</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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<div class="ttc" id="structshaka_1_1media_1_1MuxerOptions_html_ab98cfd28046fc5c52ab2a45dba1a339a"><div class="ttname"><a href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#ab98cfd28046fc5c52ab2a45dba1a339a">shaka::media::MuxerOptions::segment_template</a></div><div class="ttdeci">std::string segment_template</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d0e/muxer__options_8h_source.html#l00064">muxer_options.h:64</a></div></div>
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