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<div class="title">ts_muxer.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_muxer.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="keyword">namespace </span>shaka {</div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="keyword">namespace </span>mp2t {</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>{</div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="keyword">const</span> uint32_t kTsTimescale = 90000;</div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> } <span class="comment">// namespace</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> TsMuxer::TsMuxer(<span class="keyword">const</span> MuxerOptions& muxer_options) : Muxer(muxer_options) {}</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> TsMuxer::~TsMuxer() {}</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> Status TsMuxer::InitializeMuxer() {</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <span class="keywordflow">if</span> (streams().size() > 1u)</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <span class="keywordflow">return</span> Status(error::MUXER_FAILURE, <span class="stringliteral">"Cannot handle more than one streams."</span>);</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  segmenter_.reset(<span class="keyword">new</span> TsSegmenter(options(), muxer_listener()));</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  Status status = segmenter_->Initialize(*streams()[0]);</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  FireOnMediaStartEvent();</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keywordflow">return</span> status;</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"> 29</span> </div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> Status TsMuxer::Finalize() {</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  FireOnMediaEndEvent();</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keywordflow">return</span> segmenter_->Finalize();</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"> 34</span> </div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> Status TsMuxer::AddSample(<span class="keywordtype">size_t</span> stream_id,</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  std::shared_ptr<MediaSample> sample) {</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  DCHECK_EQ(stream_id, 0u);</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordflow">return</span> segmenter_->AddSample(sample);</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"> 41</span> Status TsMuxer::FinalizeSegment(<span class="keywordtype">size_t</span> stream_id,</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  std::shared_ptr<SegmentInfo> segment_info) {</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  DCHECK_EQ(stream_id, 0u);</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">return</span> segment_info->is_subsegment</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  ? Status::OK</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  : segmenter_->FinalizeSegment(segment_info->start_timestamp,</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  segment_info->duration);</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> </div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keywordtype">void</span> TsMuxer::FireOnMediaStartEvent() {</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">if</span> (!muxer_listener())</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  muxer_listener()-><a class="code" href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html#a31536ec385a7ec22f323a42b872b499a">OnMediaStart</a>(options(), *streams().front(), kTsTimescale,</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  MuxerListener::kContainerWebM);</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> </div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keywordtype">void</span> TsMuxer::FireOnMediaEndEvent() {</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordflow">if</span> (!muxer_listener())</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">return</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="comment">// For now, there is no single file TS segmenter. So all the values passed</span></div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="comment">// here are left empty.</span></div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  MuxerListener::MediaRanges range;</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  muxer_listener()-><a class="code" href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html#a11d4301cd53ab421f524bfa143eac21a">OnMediaEnd</a>(range, 0);</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> </div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> } <span class="comment">// namespace mp2t</span></div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> } <span class="comment">// namespace shaka</span></div>
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<div class="ttc" id="classshaka_1_1media_1_1MuxerListener_html_a11d4301cd53ab421f524bfa143eac21a"><div class="ttname"><a href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html#a11d4301cd53ab421f524bfa143eac21a">shaka::media::MuxerListener::OnMediaEnd</a></div><div class="ttdeci">virtual void OnMediaEnd(const MediaRanges &media_ranges, float duration_seconds)=0</div></div>
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<div class="ttc" id="classshaka_1_1media_1_1MuxerListener_html_a31536ec385a7ec22f323a42b872b499a"><div class="ttname"><a href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html#a31536ec385a7ec22f323a42b872b499a">shaka::media::MuxerListener::OnMediaStart</a></div><div class="ttdeci">virtual void OnMediaStart(const MuxerOptions &muxer_options, const StreamInfo &stream_info, uint32_t time_scale, ContainerType container_type)=0</div></div>
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