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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright 2015 Google Inc. All rights reserved.</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// Use of this source code is governed by a BSD-style</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">// license that can be found in the LICENSE file or at</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;</div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/webm/webm_muxer.h&quot;</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;</div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/fourccs.h&quot;</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/media_sample.h&quot;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/stream_info.h&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/webm/mkv_writer.h&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/webm/multi_segment_segmenter.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/webm/single_segment_segmenter.h&quot;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/webm/two_pass_single_segment_segmenter.h&quot;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="keyword">namespace </span>shaka {</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="keyword">namespace </span>media {</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="keyword">namespace </span>webm {</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;</div>
<div class="line"><a name="l00021"></a><span class="lineno"><a class="line" href="../../d3/d73/classshaka_1_1media_1_1webm_1_1WebMMuxer.html#a17b47db217334b2ec328bdbf1a9c7e29"> 21</a></span>&#160;<a class="code" href="../../d3/d73/classshaka_1_1media_1_1webm_1_1WebMMuxer.html#a17b47db217334b2ec328bdbf1a9c7e29">WebMMuxer::WebMMuxer</a>(<span class="keyword">const</span> <a class="code" href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html">MuxerOptions</a>&amp; options) : <a class="code" href="../../df/d46/classshaka_1_1media_1_1Muxer.html">Muxer</a>(options) {}</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;WebMMuxer::~WebMMuxer() {}</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a> WebMMuxer::InitializeMuxer() {</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; CHECK_EQ(streams().size(), 1U);</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; <span class="keywordflow">if</span> (streams()[0]-&gt;is_encrypted() &amp;&amp;</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; streams()[0]-&gt;encryption_config().protection_scheme != FOURCC_cenc) {</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;WebM does not support protection scheme other than &#39;cenc&#39;.&quot;</span>;</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; <span class="keywordflow">return</span> <a class="code" href="../../d0/d93/classshaka_1_1media_1_1Status.html">Status</a>(error::INVALID_ARGUMENT,</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; <span class="stringliteral">&quot;WebM does not support protection scheme other than &#39;cenc&#39;.&quot;</span>);</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; }</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; <span class="keywordflow">if</span> (!options().segment_template.empty()) {</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; segmenter_.reset(<span class="keyword">new</span> MultiSegmentSegmenter(options()));</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; segmenter_.reset(<span class="keyword">new</span> TwoPassSingleSegmentSegmenter(options()));</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; }</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; Status initialized = segmenter_-&gt;Initialize(</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; streams()[0].<span class="keyword">get</span>(), progress_listener(), muxer_listener());</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <span class="keywordflow">if</span> (!initialized.ok())</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <span class="keywordflow">return</span> initialized;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; FireOnMediaStartEvent();</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; <span class="keywordflow">return</span> Status::OK;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;}</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;Status WebMMuxer::Finalize() {</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; DCHECK(segmenter_);</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; Status segmenter_finalized = segmenter_-&gt;Finalize();</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <span class="keywordflow">if</span> (!segmenter_finalized.ok())</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="keywordflow">return</span> segmenter_finalized;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; FireOnMediaEndEvent();</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; LOG(INFO) &lt;&lt; <span class="stringliteral">&quot;WEBM file &#39;&quot;</span> &lt;&lt; options().<a class="code" href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a5397ee8759a663aea68261600e528d82">output_file_name</a> &lt;&lt; <span class="stringliteral">&quot;&#39; finalized.&quot;</span>;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <span class="keywordflow">return</span> Status::OK;</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;}</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160;Status WebMMuxer::AddSample(<span class="keywordtype">size_t</span> stream_id,</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; std::shared_ptr&lt;MediaSample&gt; sample) {</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; DCHECK(segmenter_);</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; DCHECK_EQ(stream_id, 0u);</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; <span class="keywordflow">return</span> segmenter_-&gt;AddSample(sample);</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;}</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160;</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160;Status WebMMuxer::FinalizeSegment(<span class="keywordtype">size_t</span> stream_id,</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; std::shared_ptr&lt;SegmentInfo&gt; segment_info) {</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; DCHECK(segmenter_);</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; DCHECK_EQ(stream_id, 0u);</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; <span class="keywordflow">if</span> (segment_info-&gt;key_rotation_encryption_config) {</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; NOTIMPLEMENTED() &lt;&lt; <span class="stringliteral">&quot;Key rotation is not implemented for WebM.&quot;</span>;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; <span class="keywordflow">return</span> Status(error::UNIMPLEMENTED,</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <span class="stringliteral">&quot;Key rotation is not implemented for WebM&quot;</span>);</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; }</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="keywordflow">return</span> segmenter_-&gt;FinalizeSegment(segment_info-&gt;start_timestamp,</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; segment_info-&gt;duration,</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; segment_info-&gt;is_subsegment);</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160;}</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160;<span class="keywordtype">void</span> WebMMuxer::FireOnMediaStartEvent() {</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <span class="keywordflow">if</span> (!muxer_listener())</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; DCHECK(!streams().empty()) &lt;&lt; <span class="stringliteral">&quot;Media started without a stream.&quot;</span>;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <span class="keyword">const</span> uint32_t timescale = streams().front()-&gt;time_scale();</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; muxer_listener()-&gt;<a class="code" href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html#a31536ec385a7ec22f323a42b872b499a">OnMediaStart</a>(options(), *streams().front(), timescale,</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; MuxerListener::kContainerWebM);</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160;}</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160;<span class="keywordtype">void</span> WebMMuxer::FireOnMediaEndEvent() {</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="keywordflow">if</span> (!muxer_listener())</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; uint64_t init_range_start = 0;</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; uint64_t init_range_end = 0;</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="keyword">const</span> <span class="keywordtype">bool</span> has_init_range =</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; segmenter_-&gt;GetInitRangeStartAndEnd(&amp;init_range_start, &amp;init_range_end);</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; uint64_t index_range_start = 0;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; uint64_t index_range_end = 0;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; <span class="keyword">const</span> <span class="keywordtype">bool</span> has_index_range = segmenter_-&gt;GetIndexRangeStartAndEnd(</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; &amp;index_range_start, &amp;index_range_end);</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="keyword">const</span> <span class="keywordtype">float</span> duration_seconds = segmenter_-&gt;GetDurationInSeconds();</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="keyword">const</span> int64_t file_size =</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <a class="code" href="../../d3/d61/classshaka_1_1media_1_1File.html#a6981994874ee5832e3394744fd51fd79">File::GetFileSize</a>(options().output_file_name.c_str());</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <span class="keywordflow">if</span> (file_size &lt;= 0) {</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Invalid file size: &quot;</span> &lt;&lt; file_size;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; }</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; muxer_listener()-&gt;<a class="code" href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html#ac89a028372db9abbccf569819d9b2b35">OnMediaEnd</a>(has_init_range, init_range_start, init_range_end,</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; has_index_range, index_range_start,</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; index_range_end, duration_seconds, file_size);</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160;}</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160;} <span class="comment">// namespace webm</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160;} <span class="comment">// namespace media</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160;} <span class="comment">// namespace shaka</span></div>
<div class="ttc" id="classshaka_1_1media_1_1MuxerListener_html_ac89a028372db9abbccf569819d9b2b35"><div class="ttname"><a href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html#ac89a028372db9abbccf569819d9b2b35">shaka::media::MuxerListener::OnMediaEnd</a></div><div class="ttdeci">virtual void OnMediaEnd(bool has_init_range, uint64_t init_range_start, uint64_t init_range_end, bool has_index_range, uint64_t index_range_start, uint64_t index_range_end, float duration_seconds, uint64_t file_size)=0</div></div>
<div class="ttc" id="structshaka_1_1media_1_1MuxerOptions_html_a5397ee8759a663aea68261600e528d82"><div class="ttname"><a href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a5397ee8759a663aea68261600e528d82">shaka::media::MuxerOptions::output_file_name</a></div><div class="ttdeci">std::string output_file_name</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d0e/muxer__options_8h_source.html#l00039">muxer_options.h:39</a></div></div>
<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>
<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>
<div class="ttc" id="classshaka_1_1media_1_1Muxer_html"><div class="ttname"><a href="../../df/d46/classshaka_1_1media_1_1Muxer.html">shaka::media::Muxer</a></div><div class="ttdef"><b>Definition:</b> <a href="../../db/df6/muxer_8h_source.html#l00030">muxer.h:30</a></div></div>
<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#l00088">status.h:88</a></div></div>
<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 &amp;muxer_options, const StreamInfo &amp;stream_info, uint32_t time_scale, ContainerType container_type)=0</div></div>
<div class="ttc" id="classshaka_1_1media_1_1webm_1_1WebMMuxer_html_a17b47db217334b2ec328bdbf1a9c7e29"><div class="ttname"><a href="../../d3/d73/classshaka_1_1media_1_1webm_1_1WebMMuxer.html#a17b47db217334b2ec328bdbf1a9c7e29">shaka::media::webm::WebMMuxer::WebMMuxer</a></div><div class="ttdeci">WebMMuxer(const MuxerOptions &amp;options)</div><div class="ttdoc">Create a WebMMuxer object from MuxerOptions. </div><div class="ttdef"><b>Definition:</b> <a href="../../d2/dae/webm__muxer_8cc_source.html#l00021">webm_muxer.cc:21</a></div></div>
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