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<div class="title">webm_cluster_parser.cc</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright 2014 The Chromium Authors. All rights reserved.</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">// Use of this source code is governed by a BSD-style license that can be</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// found in the LICENSE file.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;</div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/webm/webm_cluster_parser.h&quot;</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 &lt;algorithm&gt;</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;</div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &quot;packager/base/logging.h&quot;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#include &quot;packager/base/sys_byteorder.h&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/decrypt_config.h&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/timestamp.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &quot;packager/media/codecs/vp8_parser.h&quot;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor">#include &quot;packager/media/codecs/vp9_parser.h&quot;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &quot;packager/media/codecs/webvtt_util.h&quot;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/webm/webm_constants.h&quot;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/webm/webm_crypto_helpers.h&quot;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/webm/webm_webvtt_parser.h&quot;</span></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"> 21</span>&#160;<span class="keyword">namespace </span>shaka {</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="keyword">namespace </span>media {</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="keyword">namespace </span>{</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="keyword">const</span> int64_t kMicrosecondsPerMillisecond = 1000;</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="comment">// namespace</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;</div>
<div class="line"><a name="l00029"></a><span class="lineno"><a class="line" href="../../da/de4/classshaka_1_1media_1_1WebMClusterParser.html#a34a1495f5080534a5c4acb1d82d0e756"> 29</a></span>&#160;<a class="code" href="../../da/de4/classshaka_1_1media_1_1WebMClusterParser.html#a34a1495f5080534a5c4acb1d82d0e756">WebMClusterParser::WebMClusterParser</a>(</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; int64_t timecode_scale,</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; std::shared_ptr&lt;AudioStreamInfo&gt; audio_stream_info,</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; std::shared_ptr&lt;VideoStreamInfo&gt; video_stream_info,</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; <span class="keyword">const</span> <a class="code" href="../../d1/da5/classshaka_1_1media_1_1VPCodecConfigurationRecord.html">VPCodecConfigurationRecord</a>&amp; vp_config,</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; int64_t audio_default_duration,</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; int64_t video_default_duration,</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; <span class="keyword">const</span> WebMTracksParser::TextTracks&amp; text_tracks,</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <span class="keyword">const</span> std::set&lt;int64_t&gt;&amp; ignored_tracks,</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; <span class="keyword">const</span> std::string&amp; audio_encryption_key_id,</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; <span class="keyword">const</span> std::string&amp; video_encryption_key_id,</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keyword">const</span> <a class="code" href="../../d3/d0a/classshaka_1_1media_1_1MediaParser.html#a3a1f87fb3ed95a9cbd2b6873326a1a4c">MediaParser::NewSampleCB</a>&amp; new_sample_cb,</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="keyword">const</span> <a class="code" href="../../d3/d0a/classshaka_1_1media_1_1MediaParser.html#aef5795d2b3df2526c6e8afe1e4d072bf">MediaParser::InitCB</a>&amp; init_cb,</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <a class="code" href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html">KeySource</a>* decryption_key_source)</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; : timecode_multiplier_(timecode_scale /</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; static_cast&lt;double&gt;(kMicrosecondsPerMillisecond)),</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; audio_stream_info_(audio_stream_info),</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; video_stream_info_(video_stream_info),</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; vp_config_(vp_config),</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; ignored_tracks_(ignored_tracks),</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; audio_encryption_key_id_(audio_encryption_key_id),</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; video_encryption_key_id_(video_encryption_key_id),</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; parser_(kWebMIdCluster, this),</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; initialized_(false),</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; init_cb_(init_cb),</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; cluster_start_time_(kNoTimestamp),</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; audio_(audio_stream_info ? audio_stream_info-&gt;track_id() : -1,</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; false,</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; audio_default_duration,</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; new_sample_cb),</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; video_(video_stream_info ? video_stream_info-&gt;track_id() : -1,</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; true,</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; video_default_duration,</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; new_sample_cb) {</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; <span class="keywordflow">if</span> (decryption_key_source) {</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; decryptor_source_.reset(<span class="keyword">new</span> <a class="code" href="../../d7/d59/classshaka_1_1media_1_1DecryptorSource.html">DecryptorSource</a>(decryption_key_source));</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; <span class="keywordflow">if</span> (audio_stream_info_)</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; audio_stream_info_-&gt;set_is_encrypted(<span class="keyword">false</span>);</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <span class="keywordflow">if</span> (video_stream_info_)</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; video_stream_info_-&gt;set_is_encrypted(<span class="keyword">false</span>);</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; }</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="keywordflow">for</span> (WebMTracksParser::TextTracks::const_iterator it = text_tracks.begin();</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; it != text_tracks.end();</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; ++it) {</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; text_track_map_.insert(std::make_pair(</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; it-&gt;first, Track(it-&gt;first, <span class="keyword">false</span>, kNoTimestamp, new_sample_cb)));</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; }</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160;}</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;WebMClusterParser::~WebMClusterParser() {}</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;</div>
<div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="../../da/de4/classshaka_1_1media_1_1WebMClusterParser.html#abb306c3299a7279125b8f321ef5bbc94"> 80</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="../../da/de4/classshaka_1_1media_1_1WebMClusterParser.html#abb306c3299a7279125b8f321ef5bbc94">WebMClusterParser::Reset</a>() {</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; last_block_timecode_ = -1;</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; cluster_timecode_ = -1;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; cluster_start_time_ = kNoTimestamp;</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; cluster_ended_ = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; parser_.<a class="code" href="../../dc/dca/classshaka_1_1media_1_1WebMListParser.html#a4ebac4e1a4165017d206d4aa5c4c0350">Reset</a>();</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; audio_.Reset();</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; video_.Reset();</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; ResetTextTracks();</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;}</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;</div>
<div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="../../da/de4/classshaka_1_1media_1_1WebMClusterParser.html#ac3d4be1a12667ed722915be727747eee"> 91</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="../../da/de4/classshaka_1_1media_1_1WebMClusterParser.html#ac3d4be1a12667ed722915be727747eee">WebMClusterParser::Flush</a>() {</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="comment">// Estimate the duration of the last frame if necessary.</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <span class="keywordtype">bool</span> audio_result = audio_.ApplyDurationEstimateIfNeeded();</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="keywordtype">bool</span> video_result = video_.ApplyDurationEstimateIfNeeded();</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <a class="code" href="../../da/de4/classshaka_1_1media_1_1WebMClusterParser.html#abb306c3299a7279125b8f321ef5bbc94">Reset</a>();</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="keywordflow">return</span> audio_result &amp;&amp; video_result;</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;</div>
<div class="line"><a name="l00099"></a><span class="lineno"><a class="line" href="../../da/de4/classshaka_1_1media_1_1WebMClusterParser.html#aba1bae97c2d96181027e43b0a1993e67"> 99</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../da/de4/classshaka_1_1media_1_1WebMClusterParser.html#aba1bae97c2d96181027e43b0a1993e67">WebMClusterParser::Parse</a>(<span class="keyword">const</span> uint8_t* buf, <span class="keywordtype">int</span> size) {</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="keywordtype">int</span> result = parser_.<a class="code" href="../../dc/dca/classshaka_1_1media_1_1WebMListParser.html#acd805b7eb25afcd9a3be2d8d88e3c6af">Parse</a>(buf, size);</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160;</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <span class="keywordflow">if</span> (result &lt; 0) {</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; cluster_ended_ = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="keywordflow">return</span> result;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; }</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160;</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; cluster_ended_ = parser_.<a class="code" href="../../dc/dca/classshaka_1_1media_1_1WebMListParser.html#acf786fc2e07143c3f1a481401240d105">IsParsingComplete</a>();</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="keywordflow">if</span> (cluster_ended_) {</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="comment">// If there were no buffers in this cluster, set the cluster start time to</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="comment">// be the |cluster_timecode_|.</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keywordflow">if</span> (cluster_start_time_ == kNoTimestamp) {</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <span class="comment">// If the cluster did not even have a |cluster_timecode_|, signal parse</span></div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="comment">// error.</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="keywordflow">if</span> (cluster_timecode_ &lt; 0)</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <span class="keywordflow">return</span> -1;</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; cluster_start_time_ = cluster_timecode_ * timecode_multiplier_;</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; }</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160;</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; <span class="comment">// Reset the parser if we&#39;re done parsing so that</span></div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="comment">// it is ready to accept another cluster on the next</span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <span class="comment">// call.</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; parser_.<a class="code" href="../../dc/dca/classshaka_1_1media_1_1WebMListParser.html#a4ebac4e1a4165017d206d4aa5c4c0350">Reset</a>();</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160;</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; last_block_timecode_ = -1;</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; cluster_timecode_ = -1;</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; }</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160;</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; <span class="keywordflow">return</span> result;</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160;}</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160;</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160;<a class="code" href="../../d5/dec/classshaka_1_1media_1_1WebMParserClient.html">WebMParserClient</a>* WebMClusterParser::OnListStart(<span class="keywordtype">int</span> <span class="keywordtype">id</span>) {</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; <span class="keywordflow">if</span> (<span class="keywordtype">id</span> == kWebMIdCluster) {</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; cluster_timecode_ = -1;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; cluster_start_time_ = kNoTimestamp;</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<span class="keywordtype">id</span> == kWebMIdBlockGroup) {</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; block_data_.reset();</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; block_data_size_ = -1;</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; block_duration_ = -1;</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; discard_padding_ = -1;</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; discard_padding_set_ = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; reference_block_set_ = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<span class="keywordtype">id</span> == kWebMIdBlockAdditions) {</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; block_add_id_ = -1;</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; block_additional_data_.reset();</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; block_additional_data_size_ = 0;</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; }</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160;</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; <span class="keywordflow">return</span> <span class="keyword">this</span>;</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160;}</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160;</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160;<span class="keywordtype">bool</span> WebMClusterParser::OnListEnd(<span class="keywordtype">int</span> <span class="keywordtype">id</span>) {</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; <span class="keywordflow">if</span> (<span class="keywordtype">id</span> != kWebMIdBlockGroup)</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160;</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <span class="comment">// Make sure the BlockGroup actually had a Block.</span></div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="keywordflow">if</span> (block_data_size_ == -1) {</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Block missing from BlockGroup.&quot;</span>;</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; }</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160;</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; <span class="keywordtype">bool</span> result = ParseBlock(</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; <span class="keyword">false</span>, block_data_.get(), block_data_size_, block_additional_data_.get(),</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; block_additional_data_size_, block_duration_,</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; discard_padding_set_ ? discard_padding_ : 0, reference_block_set_);</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; block_data_.reset();</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; block_data_size_ = -1;</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; block_duration_ = -1;</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; block_add_id_ = -1;</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; block_additional_data_.reset();</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; block_additional_data_size_ = 0;</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; discard_padding_ = -1;</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; discard_padding_set_ = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; reference_block_set_ = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; <span class="keywordflow">return</span> result;</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160;}</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160;</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160;<span class="keywordtype">bool</span> WebMClusterParser::OnUInt(<span class="keywordtype">int</span> <span class="keywordtype">id</span>, int64_t val) {</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; int64_t* dst;</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; <span class="keywordflow">switch</span> (<span class="keywordtype">id</span>) {</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="keywordflow">case</span> kWebMIdTimecode:</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; dst = &amp;cluster_timecode_;</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; <span class="keywordflow">case</span> kWebMIdBlockDuration:</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; dst = &amp;block_duration_;</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; <span class="keywordflow">case</span> kWebMIdBlockAddID:</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; dst = &amp;block_add_id_;</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; }</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; <span class="keywordflow">if</span> (*dst != -1)</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; *dst = val;</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160;}</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160;</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160;<span class="keywordtype">bool</span> WebMClusterParser::ParseBlock(<span class="keywordtype">bool</span> is_simple_block,</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; <span class="keyword">const</span> uint8_t* buf,</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; <span class="keywordtype">int</span> size,</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; <span class="keyword">const</span> uint8_t* additional,</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; <span class="keywordtype">int</span> additional_size,</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; <span class="keywordtype">int</span> duration,</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; int64_t discard_padding,</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; <span class="keywordtype">bool</span> reference_block_set) {</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; <span class="keywordflow">if</span> (size &lt; 4)</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160;</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; <span class="comment">// Return an error if the trackNum &gt; 127. We just aren&#39;t</span></div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; <span class="comment">// going to support large track numbers right now.</span></div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; <span class="keywordflow">if</span> (!(buf[0] &amp; 0x80)) {</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;TrackNumber over 127 not supported&quot;</span>;</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160; }</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160;</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; <span class="keywordtype">int</span> track_num = buf[0] &amp; 0x7f;</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; <span class="keywordtype">int</span> timecode = buf[1] &lt;&lt; 8 | buf[2];</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; <span class="keywordtype">int</span> flags = buf[3] &amp; 0xff;</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; <span class="keywordtype">int</span> lacing = (flags &gt;&gt; 1) &amp; 0x3;</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160;</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; <span class="keywordflow">if</span> (lacing) {</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Lacing &quot;</span> &lt;&lt; lacing &lt;&lt; <span class="stringliteral">&quot; is not supported yet.&quot;</span>;</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; }</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160;</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160; <span class="comment">// Sign extend negative timecode offsets.</span></div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160; <span class="keywordflow">if</span> (timecode &amp; 0x8000)</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160; timecode |= ~0xffff;</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>&#160;</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160; <span class="comment">// The first bit of the flags is set when a SimpleBlock contains only</span></div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; <span class="comment">// keyframes. If this is a Block, then keyframe is inferred by the absence of</span></div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; <span class="comment">// the ReferenceBlock Element.</span></div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; <span class="comment">// http://www.matroska.org/technical/specs/index.html</span></div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; <span class="keywordtype">bool</span> is_key_frame =</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; is_simple_block ? (flags &amp; 0x80) != 0 : !reference_block_set;</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160;</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; <span class="keyword">const</span> uint8_t* frame_data = buf + 4;</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; <span class="keywordtype">int</span> frame_size = size - (frame_data - buf);</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; <span class="keywordflow">return</span> OnBlock(is_simple_block, track_num, timecode, duration, frame_data,</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; frame_size, additional, additional_size, discard_padding,</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; is_key_frame);</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160;}</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160;</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160;<span class="keywordtype">bool</span> WebMClusterParser::OnBinary(<span class="keywordtype">int</span> <span class="keywordtype">id</span>, <span class="keyword">const</span> uint8_t* data, <span class="keywordtype">int</span> size) {</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; <span class="keywordflow">switch</span> (<span class="keywordtype">id</span>) {</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; <span class="keywordflow">case</span> kWebMIdSimpleBlock:</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; <span class="keywordflow">return</span> ParseBlock(<span class="keyword">true</span>, data, size, NULL, 0, -1, 0, <span class="keyword">false</span>);</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160;</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; <span class="keywordflow">case</span> kWebMIdBlock:</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160; <span class="keywordflow">if</span> (block_data_) {</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;More than 1 Block in a BlockGroup is not &quot;</span></div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160; <span class="stringliteral">&quot;supported.&quot;</span>;</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160; }</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; block_data_.reset(<span class="keyword">new</span> uint8_t[size]);</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; memcpy(block_data_.get(), data, size);</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160; block_data_size_ = size;</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160;</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160; <span class="keywordflow">case</span> kWebMIdBlockAdditional: {</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; uint64_t block_add_id = base::HostToNet64(block_add_id_);</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160; <span class="keywordflow">if</span> (block_additional_data_) {</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160; <span class="comment">// TODO: Technically, more than 1 BlockAdditional is allowed as per</span></div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160; <span class="comment">// matroska spec. But for now we don&#39;t have a use case to support</span></div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160; <span class="comment">// parsing of such files. Take a look at this again when such a case</span></div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160; <span class="comment">// arises.</span></div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;More than 1 BlockAdditional in a &quot;</span></div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160; <span class="stringliteral">&quot;BlockGroup is not supported.&quot;</span>;</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160; }</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160; <span class="comment">// First 8 bytes of side_data in DecoderBuffer is the BlockAddID</span></div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160; <span class="comment">// element&#39;s value in Big Endian format. This is done to mimic ffmpeg</span></div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; <span class="comment">// demuxer&#39;s behavior.</span></div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; block_additional_data_size_ = size + <span class="keyword">sizeof</span>(block_add_id);</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; block_additional_data_.reset(<span class="keyword">new</span> uint8_t[block_additional_data_size_]);</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; memcpy(block_additional_data_.get(), &amp;block_add_id,</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160; <span class="keyword">sizeof</span>(block_add_id));</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160; memcpy(block_additional_data_.get() + 8, data, size);</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160; }</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160; <span class="keywordflow">case</span> kWebMIdDiscardPadding: {</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; <span class="keywordflow">if</span> (discard_padding_set_ || size &lt;= 0 || size &gt; 8)</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; discard_padding_set_ = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160;</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160; <span class="comment">// Read in the big-endian integer.</span></div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160; discard_padding_ = <span class="keyword">static_cast&lt;</span>int8_t<span class="keyword">&gt;</span>(data[0]);</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i &lt; size; ++i)</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; discard_padding_ = (discard_padding_ &lt;&lt; 8) | data[i];</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160;</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160; }</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; <span class="keywordflow">case</span> kWebMIdReferenceBlock:</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160; <span class="comment">// We use ReferenceBlock to determine whether the current Block contains a</span></div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160; <span class="comment">// keyframe or not. Other than that, we don&#39;t care about the value of the</span></div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160; <span class="comment">// ReferenceBlock element itself.</span></div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160; reference_block_set_ = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>&#160; <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>&#160; }</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>&#160;}</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>&#160;</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>&#160;<span class="keywordtype">bool</span> WebMClusterParser::OnBlock(<span class="keywordtype">bool</span> is_simple_block,</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>&#160; <span class="keywordtype">int</span> track_num,</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>&#160; <span class="keywordtype">int</span> timecode,</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>&#160; <span class="keywordtype">int</span> block_duration,</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>&#160; <span class="keyword">const</span> uint8_t* data,</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160; <span class="keywordtype">int</span> size,</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>&#160; <span class="keyword">const</span> uint8_t* additional,</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160; <span class="keywordtype">int</span> additional_size,</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160; int64_t discard_padding,</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160; <span class="keywordtype">bool</span> is_key_frame) {</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>&#160; DCHECK_GE(size, 0);</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>&#160; <span class="keywordflow">if</span> (cluster_timecode_ == -1) {</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Got a block before cluster timecode.&quot;</span>;</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160; }</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160;</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160; <span class="comment">// TODO: Should relative negative timecode offsets be rejected? Or only when</span></div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160; <span class="comment">// the absolute timecode is negative? See http://crbug.com/271794</span></div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160; <span class="keywordflow">if</span> (timecode &lt; 0) {</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Got a block with negative timecode offset &quot;</span> &lt;&lt; timecode;</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>&#160; }</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160;</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160; <span class="keywordflow">if</span> (last_block_timecode_ != -1 &amp;&amp; timecode &lt; last_block_timecode_) {</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Got a block with a timecode before the previous block.&quot;</span>;</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160; }</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160;</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160; Track* track = NULL;</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>&#160; StreamType stream_type = kStreamUnknown;</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>&#160; std::string encryption_key_id;</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>&#160; <span class="keywordflow">if</span> (track_num == audio_.track_num()) {</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>&#160; track = &amp;audio_;</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>&#160; encryption_key_id = audio_encryption_key_id_;</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>&#160; stream_type = kStreamAudio;</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (track_num == video_.track_num()) {</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>&#160; track = &amp;video_;</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>&#160; encryption_key_id = video_encryption_key_id_;</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>&#160; stream_type = kStreamVideo;</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (ignored_tracks_.find(track_num) != ignored_tracks_.end()) {</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (Track* <span class="keyword">const</span> text_track = FindTextTrack(track_num)) {</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>&#160; <span class="keywordflow">if</span> (is_simple_block) <span class="comment">// BlockGroup is required for WebVTT cues</span></div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>&#160; <span class="keywordflow">if</span> (block_duration &lt; 0) <span class="comment">// not specified</span></div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>&#160; track = text_track;</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>&#160; stream_type = kStreamText;</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Unexpected track number &quot;</span> &lt;&lt; track_num;</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>&#160; }</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>&#160; DCHECK_NE(stream_type, kStreamUnknown);</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>&#160;</div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>&#160; last_block_timecode_ = timecode;</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>&#160;</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>&#160; int64_t timestamp = (cluster_timecode_ + timecode) * timecode_multiplier_;</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>&#160;</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>&#160; std::shared_ptr&lt;MediaSample&gt; buffer;</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>&#160; <span class="keywordflow">if</span> (stream_type != kStreamText) {</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>&#160; <span class="comment">// Every encrypted Block has a signal byte and IV prepended to it. Current</span></div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>&#160; <span class="comment">// encrypted WebM request for comments specification is here</span></div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>&#160; <span class="comment">// http://wiki.webmproject.org/encryption/webm-encryption-rfc</span></div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>&#160; std::unique_ptr&lt;DecryptConfig&gt; decrypt_config;</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>&#160; <span class="keywordtype">int</span> data_offset = 0;</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>&#160; <span class="keywordflow">if</span> (!encryption_key_id.empty() &amp;&amp;</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>&#160; !WebMCreateDecryptConfig(</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>&#160; data, size,</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>&#160; reinterpret_cast&lt;const uint8_t*&gt;(encryption_key_id.data()),</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>&#160; encryption_key_id.size(),</div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>&#160; &amp;decrypt_config, &amp;data_offset)) {</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>&#160; }</div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>&#160;</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>&#160; buffer = <a class="code" href="../../d7/d6d/classshaka_1_1media_1_1MediaSample.html#ad8975dbb21747ff32c8604f5489bf5c9">MediaSample::CopyFrom</a>(data + data_offset, size - data_offset,</div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>&#160; additional, additional_size, is_key_frame);</div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>&#160;</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>&#160; <span class="keywordflow">if</span> (decrypt_config) {</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>&#160; <span class="keywordflow">if</span> (!decryptor_source_) {</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>&#160; <span class="comment">// If the demuxer does not have the decryptor_source_, store</span></div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>&#160; <span class="comment">// decrypt_config so that the demuxed sample can be decrypted later.</span></div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>&#160; buffer-&gt;set_decrypt_config(std::move(decrypt_config));</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>&#160; buffer-&gt;set_is_encrypted(<span class="keyword">true</span>);</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!decryptor_source_-&gt;DecryptSampleBuffer(</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>&#160; decrypt_config.get(), buffer-&gt;writable_data(),</div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>&#160; buffer-&gt;data_size())) {</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Cannot decrypt samples&quot;</span>;</div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>&#160; }</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>&#160; }</div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>&#160; std::string id, settings, content;</div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>&#160; <a class="code" href="../../d4/d59/classshaka_1_1media_1_1WebMWebVTTParser.html#a4e6f754e4fba24f7ea77fd0db959908b">WebMWebVTTParser::Parse</a>(data, size, &amp;<span class="keywordtype">id</span>, &amp;settings, &amp;content);</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>&#160;</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>&#160; std::vector&lt;uint8_t&gt; side_data;</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>&#160; MakeSideData(<span class="keywordtype">id</span>.begin(), <span class="keywordtype">id</span>.end(),</div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>&#160; settings.begin(), settings.end(),</div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>&#160; &amp;side_data);</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>&#160;</div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>&#160; buffer = <a class="code" href="../../d7/d6d/classshaka_1_1media_1_1MediaSample.html#ad8975dbb21747ff32c8604f5489bf5c9">MediaSample::CopyFrom</a>(</div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>&#160; reinterpret_cast&lt;const uint8_t*&gt;(content.data()), content.length(),</div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>&#160; &amp;side_data[0], side_data.size(), <span class="keyword">true</span>);</div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>&#160; }</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>&#160;</div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>&#160; buffer-&gt;set_dts(timestamp);</div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>&#160; buffer-&gt;set_pts(timestamp);</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>&#160; <span class="keywordflow">if</span> (cluster_start_time_ == kNoTimestamp)</div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>&#160; cluster_start_time_ = timestamp;</div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>&#160; buffer-&gt;set_duration(block_duration &gt; 0</div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>&#160; ? (block_duration * timecode_multiplier_)</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>&#160; : kNoTimestamp);</div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>&#160;</div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>&#160; <span class="keywordflow">if</span> (!init_cb_.is_null() &amp;&amp; !initialized_) {</div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>&#160; std::vector&lt;std::shared_ptr&lt;StreamInfo&gt;&gt; streams;</div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>&#160; <span class="keywordflow">if</span> (audio_stream_info_)</div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>&#160; streams.push_back(audio_stream_info_);</div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>&#160; <span class="keywordflow">if</span> (video_stream_info_) {</div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>&#160; <span class="keywordflow">if</span> (stream_type == kStreamVideo) {</div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>&#160; std::unique_ptr&lt;VPxParser&gt; vpx_parser;</div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>&#160; <span class="keywordflow">switch</span> (video_stream_info_-&gt;codec()) {</div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>&#160; <span class="keywordflow">case</span> kCodecVP8:</div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>&#160; vpx_parser.reset(<span class="keyword">new</span> VP8Parser);</div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>&#160; <span class="keywordflow">case</span> kCodecVP9:</div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>&#160; vpx_parser.reset(<span class="keyword">new</span> VP9Parser);</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>&#160; <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>&#160; NOTIMPLEMENTED() &lt;&lt; <span class="stringliteral">&quot;Unsupported codec &quot;</span></div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>&#160; &lt;&lt; video_stream_info_-&gt;codec();</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>&#160; }</div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>&#160; std::vector&lt;VPxFrameInfo&gt; vpx_frames;</div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>&#160; <span class="keywordflow">if</span> (!vpx_parser-&gt;Parse(buffer-&gt;data(), buffer-&gt;data_size(),</div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>&#160; &amp;vpx_frames)) {</div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Failed to parse vpx frame.&quot;</span>;</div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>&#160; }</div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>&#160; <span class="keywordflow">if</span> (vpx_frames.size() != 1u || !vpx_frames[0].is_keyframe) {</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;The first frame should be a key frame.&quot;</span>;</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>&#160; }</div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>&#160;</div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>&#160; vp_config_.<a class="code" href="../../d1/da5/classshaka_1_1media_1_1VPCodecConfigurationRecord.html#a36dddd88a09f038adfbf87063786178c">MergeFrom</a>(vpx_parser-&gt;codec_config());</div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>&#160; video_stream_info_-&gt;set_codec_string(</div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>&#160; vp_config_.<a class="code" href="../../d1/da5/classshaka_1_1media_1_1VPCodecConfigurationRecord.html#a86b48fb506b476538a7440d9ccf9a533">GetCodecString</a>(video_stream_info_-&gt;codec()));</div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>&#160; std::vector&lt;uint8_t&gt; config_serialized;</div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>&#160; vp_config_.<a class="code" href="../../d1/da5/classshaka_1_1media_1_1VPCodecConfigurationRecord.html#a790c2bbfed9caa79aefb5c597c892e00">WriteMP4</a>(&amp;config_serialized);</div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>&#160; video_stream_info_-&gt;set_codec_config(config_serialized);</div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>&#160; streams.push_back(video_stream_info_);</div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>&#160; init_cb_.Run(streams);</div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>&#160; initialized_ = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>&#160; }</div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>&#160; init_cb_.Run(streams);</div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>&#160; initialized_ = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>&#160; }</div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>&#160; }</div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>&#160;</div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>&#160; <span class="keywordflow">return</span> track-&gt;EmitBuffer(buffer);</div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>&#160;}</div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>&#160;</div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>&#160;WebMClusterParser::Track::Track(<span class="keywordtype">int</span> track_num,</div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>&#160; <span class="keywordtype">bool</span> is_video,</div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>&#160; int64_t default_duration,</div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>&#160; <span class="keyword">const</span> <a class="code" href="../../d3/d0a/classshaka_1_1media_1_1MediaParser.html#a3a1f87fb3ed95a9cbd2b6873326a1a4c">MediaParser::NewSampleCB</a>&amp; new_sample_cb)</div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>&#160; : track_num_(track_num),</div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>&#160; is_video_(is_video),</div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>&#160; default_duration_(default_duration),</div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>&#160; estimated_next_frame_duration_(kNoTimestamp),</div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>&#160; new_sample_cb_(new_sample_cb) {</div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>&#160; DCHECK(default_duration_ == kNoTimestamp || default_duration_ &gt; 0);</div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>&#160;}</div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>&#160;</div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>&#160;WebMClusterParser::Track::~Track() {}</div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>&#160;</div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>&#160;<span class="keywordtype">bool</span> WebMClusterParser::Track::EmitBuffer(</div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>&#160; <span class="keyword">const</span> std::shared_ptr&lt;MediaSample&gt;&amp; buffer) {</div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>&#160; DVLOG(2) &lt;&lt; <span class="stringliteral">&quot;EmitBuffer() : &quot;</span> &lt;&lt; track_num_</div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>&#160; &lt;&lt; <span class="stringliteral">&quot; ts &quot;</span> &lt;&lt; buffer-&gt;pts()</div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>&#160; &lt;&lt; <span class="stringliteral">&quot; dur &quot;</span> &lt;&lt; buffer-&gt;duration()</div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>&#160; &lt;&lt; <span class="stringliteral">&quot; kf &quot;</span> &lt;&lt; buffer-&gt;is_key_frame()</div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>&#160; &lt;&lt; <span class="stringliteral">&quot; size &quot;</span> &lt;&lt; buffer-&gt;data_size();</div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>&#160;</div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>&#160; <span class="keywordflow">if</span> (last_added_buffer_missing_duration_.get()) {</div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>&#160; int64_t derived_duration =</div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>&#160; buffer-&gt;pts() - last_added_buffer_missing_duration_-&gt;pts();</div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>&#160; last_added_buffer_missing_duration_-&gt;set_duration(derived_duration);</div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>&#160;</div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>&#160; DVLOG(2) &lt;&lt; <span class="stringliteral">&quot;EmitBuffer() : applied derived duration to held-back buffer : &quot;</span></div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>&#160; &lt;&lt; <span class="stringliteral">&quot; ts &quot;</span></div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>&#160; &lt;&lt; last_added_buffer_missing_duration_-&gt;pts()</div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>&#160; &lt;&lt; <span class="stringliteral">&quot; dur &quot;</span></div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>&#160; &lt;&lt; last_added_buffer_missing_duration_-&gt;duration()</div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>&#160; &lt;&lt; <span class="stringliteral">&quot; kf &quot;</span> &lt;&lt; last_added_buffer_missing_duration_-&gt;is_key_frame()</div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>&#160; &lt;&lt; <span class="stringliteral">&quot; size &quot;</span> &lt;&lt; last_added_buffer_missing_duration_-&gt;data_size();</div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>&#160; std::shared_ptr&lt;MediaSample&gt; updated_buffer =</div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>&#160; last_added_buffer_missing_duration_;</div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>&#160; last_added_buffer_missing_duration_ = NULL;</div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>&#160; <span class="keywordflow">if</span> (!EmitBufferHelp(updated_buffer))</div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>&#160; }</div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>&#160;</div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>&#160; <span class="keywordflow">if</span> (buffer-&gt;duration() == kNoTimestamp) {</div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>&#160; last_added_buffer_missing_duration_ = buffer;</div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>&#160; DVLOG(2) &lt;&lt; <span class="stringliteral">&quot;EmitBuffer() : holding back buffer that is missing duration&quot;</span>;</div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>&#160; }</div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>&#160;</div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>&#160; <span class="keywordflow">return</span> EmitBufferHelp(buffer);</div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>&#160;}</div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>&#160;</div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>&#160;<span class="keywordtype">bool</span> WebMClusterParser::Track::ApplyDurationEstimateIfNeeded() {</div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>&#160; <span class="keywordflow">if</span> (!last_added_buffer_missing_duration_.get())</div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>&#160;</div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>&#160; int64_t estimated_duration = GetDurationEstimate();</div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>&#160; last_added_buffer_missing_duration_-&gt;set_duration(estimated_duration);</div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>&#160;</div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>&#160; VLOG(1) &lt;&lt; <span class="stringliteral">&quot;Track &quot;</span> &lt;&lt; track_num_ &lt;&lt; <span class="stringliteral">&quot;: Estimating WebM block duration to be &quot;</span></div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>&#160; &lt;&lt; estimated_duration / 1000</div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>&#160; &lt;&lt; <span class="stringliteral">&quot;ms for the last (Simple)Block in the Cluster for this Track. Use &quot;</span></div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>&#160; <span class="stringliteral">&quot;BlockGroups with BlockDurations at the end of each Track in a &quot;</span></div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>&#160; <span class="stringliteral">&quot;Cluster to avoid estimation.&quot;</span>;</div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>&#160;</div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>&#160; DVLOG(2) &lt;&lt; <span class="stringliteral">&quot; new dur : ts &quot;</span> &lt;&lt; last_added_buffer_missing_duration_-&gt;pts()</div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>&#160; &lt;&lt; <span class="stringliteral">&quot; dur &quot;</span> &lt;&lt; last_added_buffer_missing_duration_-&gt;duration()</div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>&#160; &lt;&lt; <span class="stringliteral">&quot; kf &quot;</span> &lt;&lt; last_added_buffer_missing_duration_-&gt;is_key_frame()</div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>&#160; &lt;&lt; <span class="stringliteral">&quot; size &quot;</span> &lt;&lt; last_added_buffer_missing_duration_-&gt;data_size();</div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>&#160;</div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>&#160; <span class="comment">// Don&#39;t use the applied duration as a future estimation (don&#39;t use</span></div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>&#160; <span class="comment">// EmitBufferHelp() here.)</span></div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>&#160; <span class="keywordflow">if</span> (!new_sample_cb_.Run(track_num_, last_added_buffer_missing_duration_))</div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>&#160; last_added_buffer_missing_duration_ = NULL;</div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>&#160;}</div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>&#160;</div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>&#160;<span class="keywordtype">void</span> WebMClusterParser::Track::Reset() {</div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>&#160; last_added_buffer_missing_duration_ = NULL;</div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>&#160;}</div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>&#160;</div>
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>&#160;<span class="keywordtype">bool</span> WebMClusterParser::Track::EmitBufferHelp(</div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>&#160; <span class="keyword">const</span> std::shared_ptr&lt;MediaSample&gt;&amp; buffer) {</div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>&#160; DCHECK(!last_added_buffer_missing_duration_.get());</div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>&#160;</div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>&#160; int64_t duration = buffer-&gt;duration();</div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>&#160; <span class="keywordflow">if</span> (duration &lt; 0 || duration == kNoTimestamp) {</div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Invalid buffer duration: &quot;</span> &lt;&lt; duration;</div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>&#160; }</div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>&#160;</div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>&#160; <span class="comment">// The estimated frame duration is the maximum non-zero duration since the</span></div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>&#160; <span class="comment">// last initialization segment.</span></div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>&#160; <span class="keywordflow">if</span> (duration &gt; 0) {</div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>&#160; int64_t orig_duration_estimate = estimated_next_frame_duration_;</div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>&#160; <span class="keywordflow">if</span> (estimated_next_frame_duration_ == kNoTimestamp) {</div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>&#160; estimated_next_frame_duration_ = duration;</div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span>&#160; estimated_next_frame_duration_ =</div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>&#160; std::max(duration, estimated_next_frame_duration_);</div>
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>&#160; }</div>
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>&#160;</div>
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>&#160; <span class="keywordflow">if</span> (orig_duration_estimate != estimated_next_frame_duration_) {</div>
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>&#160; DVLOG(3) &lt;&lt; <span class="stringliteral">&quot;Updated duration estimate:&quot;</span></div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>&#160; &lt;&lt; orig_duration_estimate</div>
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>&#160; &lt;&lt; <span class="stringliteral">&quot; -&gt; &quot;</span></div>
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>&#160; &lt;&lt; estimated_next_frame_duration_</div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>&#160; &lt;&lt; <span class="stringliteral">&quot; at timestamp: &quot;</span></div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>&#160; &lt;&lt; buffer-&gt;dts();</div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>&#160; }</div>
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>&#160; }</div>
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>&#160;</div>
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>&#160; <span class="keywordflow">return</span> new_sample_cb_.Run(track_num_, buffer);</div>
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>&#160;}</div>
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>&#160;</div>
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>&#160;int64_t WebMClusterParser::Track::GetDurationEstimate() {</div>
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>&#160; int64_t duration = kNoTimestamp;</div>
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>&#160; <span class="keywordflow">if</span> (default_duration_ != kNoTimestamp) {</div>
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>&#160; duration = default_duration_;</div>
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>&#160; DVLOG(3) &lt;&lt; __FUNCTION__ &lt;&lt; <span class="stringliteral">&quot; : using track default duration &quot;</span> &lt;&lt; duration;</div>
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (estimated_next_frame_duration_ != kNoTimestamp) {</div>
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>&#160; duration = estimated_next_frame_duration_;</div>
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span>&#160; DVLOG(3) &lt;&lt; __FUNCTION__ &lt;&lt; <span class="stringliteral">&quot; : using estimated duration &quot;</span> &lt;&lt; duration;</div>
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>&#160; <span class="keywordflow">if</span> (is_video_) {</div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>&#160; duration = kDefaultVideoBufferDurationInMs * kMicrosecondsPerMillisecond;</div>
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>&#160; duration = kDefaultAudioBufferDurationInMs * kMicrosecondsPerMillisecond;</div>
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>&#160; }</div>
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span>&#160; DVLOG(3) &lt;&lt; __FUNCTION__ &lt;&lt; <span class="stringliteral">&quot; : using hardcoded default duration &quot;</span></div>
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span>&#160; &lt;&lt; duration;</div>
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>&#160; }</div>
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>&#160;</div>
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>&#160; DCHECK_GT(duration, 0);</div>
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>&#160; DCHECK_NE(duration, kNoTimestamp);</div>
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span>&#160; <span class="keywordflow">return</span> duration;</div>
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>&#160;}</div>
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>&#160;</div>
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>&#160;<span class="keywordtype">void</span> WebMClusterParser::ResetTextTracks() {</div>
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span>&#160; <span class="keywordflow">for</span> (TextTrackMap::iterator it = text_track_map_.begin();</div>
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>&#160; it != text_track_map_.end();</div>
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>&#160; ++it) {</div>
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span>&#160; it-&gt;second.Reset();</div>
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>&#160; }</div>
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span>&#160;}</div>
<div class="line"><a name="l00610"></a><span class="lineno"> 610</span>&#160;</div>
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span>&#160;WebMClusterParser::Track*</div>
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span>&#160;WebMClusterParser::FindTextTrack(<span class="keywordtype">int</span> track_num) {</div>
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span>&#160; <span class="keyword">const</span> TextTrackMap::iterator it = text_track_map_.find(track_num);</div>
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span>&#160;</div>
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span>&#160; <span class="keywordflow">if</span> (it == text_track_map_.end())</div>
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span>&#160; <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span>&#160;</div>
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>&#160; <span class="keywordflow">return</span> &amp;it-&gt;second;</div>
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span>&#160;}</div>
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span>&#160;</div>
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span>&#160;} <span class="comment">// namespace media</span></div>
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span>&#160;} <span class="comment">// namespace shaka</span></div>
<div class="ttc" id="classshaka_1_1media_1_1VPCodecConfigurationRecord_html"><div class="ttname"><a href="../../d1/da5/classshaka_1_1media_1_1VPCodecConfigurationRecord.html">shaka::media::VPCodecConfigurationRecord</a></div><div class="ttdoc">Class for parsing or writing VP codec configuration record. </div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d9b/vp__codec__configuration__record_8h_source.html#l00153">vp_codec_configuration_record.h:153</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1WebMClusterParser_html_a34a1495f5080534a5c4acb1d82d0e756"><div class="ttname"><a href="../../da/de4/classshaka_1_1media_1_1WebMClusterParser.html#a34a1495f5080534a5c4acb1d82d0e756">shaka::media::WebMClusterParser::WebMClusterParser</a></div><div class="ttdeci">WebMClusterParser(int64_t timecode_scale, std::shared_ptr&lt; AudioStreamInfo &gt; audio_stream_info, std::shared_ptr&lt; VideoStreamInfo &gt; video_stream_info, const VPCodecConfigurationRecord &amp;vp_config, int64_t audio_default_duration, int64_t video_default_duration, const WebMTracksParser::TextTracks &amp;text_tracks, const std::set&lt; int64_t &gt; &amp;ignored_tracks, const std::string &amp;audio_encryption_key_id, const std::string &amp;video_encryption_key_id, const MediaParser::NewSampleCB &amp;new_sample_cb, const MediaParser::InitCB &amp;init_cb, KeySource *decryption_key_source)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d8f/webm__cluster__parser_8cc_source.html#l00029">webm_cluster_parser.cc:29</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1VPCodecConfigurationRecord_html_a790c2bbfed9caa79aefb5c597c892e00"><div class="ttname"><a href="../../d1/da5/classshaka_1_1media_1_1VPCodecConfigurationRecord.html#a790c2bbfed9caa79aefb5c597c892e00">shaka::media::VPCodecConfigurationRecord::WriteMP4</a></div><div class="ttdeci">void WriteMP4(std::vector&lt; uint8_t &gt; *data) const </div><div class="ttdef"><b>Definition:</b> <a href="../../df/d05/vp__codec__configuration__record_8cc_source.html#l00157">vp_codec_configuration_record.cc:157</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1WebMClusterParser_html_aba1bae97c2d96181027e43b0a1993e67"><div class="ttname"><a href="../../da/de4/classshaka_1_1media_1_1WebMClusterParser.html#aba1bae97c2d96181027e43b0a1993e67">shaka::media::WebMClusterParser::Parse</a></div><div class="ttdeci">int Parse(const uint8_t *buf, int size)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d8f/webm__cluster__parser_8cc_source.html#l00099">webm_cluster_parser.cc:99</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1MediaParser_html_aef5795d2b3df2526c6e8afe1e4d072bf"><div class="ttname"><a href="../../d3/d0a/classshaka_1_1media_1_1MediaParser.html#aef5795d2b3df2526c6e8afe1e4d072bf">shaka::media::MediaParser::InitCB</a></div><div class="ttdeci">base::Callback&lt; void(const std::vector&lt; std::shared_ptr&lt; StreamInfo &gt; &gt; &amp;stream_info)&gt; InitCB</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d12/media__parser_8h_source.html#l00034">media_parser.h:34</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1VPCodecConfigurationRecord_html_a86b48fb506b476538a7440d9ccf9a533"><div class="ttname"><a href="../../d1/da5/classshaka_1_1media_1_1VPCodecConfigurationRecord.html#a86b48fb506b476538a7440d9ccf9a533">shaka::media::VPCodecConfigurationRecord::GetCodecString</a></div><div class="ttdeci">std::string GetCodecString(Codec codec) const </div><div class="ttdef"><b>Definition:</b> <a href="../../df/d05/vp__codec__configuration__record_8cc_source.html#l00205">vp_codec_configuration_record.cc:205</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1MediaParser_html_a3a1f87fb3ed95a9cbd2b6873326a1a4c"><div class="ttname"><a href="../../d3/d0a/classshaka_1_1media_1_1MediaParser.html#a3a1f87fb3ed95a9cbd2b6873326a1a4c">shaka::media::MediaParser::NewSampleCB</a></div><div class="ttdeci">base::Callback&lt; bool(uint32_t track_id, const std::shared_ptr&lt; MediaSample &gt; &amp;media_sample)&gt; NewSampleCB</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d12/media__parser_8h_source.html#l00043">media_parser.h:43</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1WebMListParser_html_a4ebac4e1a4165017d206d4aa5c4c0350"><div class="ttname"><a href="../../dc/dca/classshaka_1_1media_1_1WebMListParser.html#a4ebac4e1a4165017d206d4aa5c4c0350">shaka::media::WebMListParser::Reset</a></div><div class="ttdeci">void Reset()</div><div class="ttdoc">Resets the state of the parser so it can start parsing a new list. </div><div class="ttdef"><b>Definition:</b> <a href="../../d3/db6/webm__parser_8cc_source.html#l00733">webm_parser.cc:733</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1WebMListParser_html_acd805b7eb25afcd9a3be2d8d88e3c6af"><div class="ttname"><a href="../../dc/dca/classshaka_1_1media_1_1WebMListParser.html#acd805b7eb25afcd9a3be2d8d88e3c6af">shaka::media::WebMListParser::Parse</a></div><div class="ttdeci">int Parse(const uint8_t *buf, int size)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/db6/webm__parser_8cc_source.html#l00738">webm_parser.cc:738</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1WebMClusterParser_html_ac3d4be1a12667ed722915be727747eee"><div class="ttname"><a href="../../da/de4/classshaka_1_1media_1_1WebMClusterParser.html#ac3d4be1a12667ed722915be727747eee">shaka::media::WebMClusterParser::Flush</a></div><div class="ttdeci">bool Flush() WARN_UNUSED_RESULT</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d8f/webm__cluster__parser_8cc_source.html#l00091">webm_cluster_parser.cc:91</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1WebMWebVTTParser_html_a4e6f754e4fba24f7ea77fd0db959908b"><div class="ttname"><a href="../../d4/d59/classshaka_1_1media_1_1WebMWebVTTParser.html#a4e6f754e4fba24f7ea77fd0db959908b">shaka::media::WebMWebVTTParser::Parse</a></div><div class="ttdeci">static void Parse(const uint8_t *payload, int payload_size, std::string *id, std::string *settings, std::string *content)</div><div class="ttdoc">Utility function to parse the WebVTT cue from a byte stream. </div><div class="ttdef"><b>Definition:</b> <a href="../../d5/dc1/webm__webvtt__parser_8cc_source.html#l00010">webm_webvtt_parser.cc:10</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1VPCodecConfigurationRecord_html_a36dddd88a09f038adfbf87063786178c"><div class="ttname"><a href="../../d1/da5/classshaka_1_1media_1_1VPCodecConfigurationRecord.html#a36dddd88a09f038adfbf87063786178c">shaka::media::VPCodecConfigurationRecord::MergeFrom</a></div><div class="ttdeci">void MergeFrom(const VPCodecConfigurationRecord &amp;other)</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d05/vp__codec__configuration__record_8cc_source.html#l00227">vp_codec_configuration_record.cc:227</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1MediaSample_html_ad8975dbb21747ff32c8604f5489bf5c9"><div class="ttname"><a href="../../d7/d6d/classshaka_1_1media_1_1MediaSample.html#ad8975dbb21747ff32c8604f5489bf5c9">shaka::media::MediaSample::CopyFrom</a></div><div class="ttdeci">static std::shared_ptr&lt; MediaSample &gt; CopyFrom(const uint8_t *data, size_t size, bool is_key_frame)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d0d/media__sample_8cc_source.html#l00045">media_sample.cc:45</a></div></div>
<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#l00045">key_source.h:45</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1WebMListParser_html_acf786fc2e07143c3f1a481401240d105"><div class="ttname"><a href="../../dc/dca/classshaka_1_1media_1_1WebMListParser.html#acf786fc2e07143c3f1a481401240d105">shaka::media::WebMListParser::IsParsingComplete</a></div><div class="ttdeci">bool IsParsingComplete() const </div><div class="ttdef"><b>Definition:</b> <a href="../../d3/db6/webm__parser_8cc_source.html#l00822">webm_parser.cc:822</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1DecryptorSource_html"><div class="ttname"><a href="../../d7/d59/classshaka_1_1media_1_1DecryptorSource.html">shaka::media::DecryptorSource</a></div><div class="ttdoc">DecryptorSource wraps KeySource and is responsible for decryptor management. </div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d7d/decryptor__source_8h_source.html#l00022">decryptor_source.h:22</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1WebMParserClient_html"><div class="ttname"><a href="../../d5/dec/classshaka_1_1media_1_1WebMParserClient.html">shaka::media::WebMParserClient</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d46/webm__parser_8h_source.html#l00030">webm_parser.h:30</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1WebMClusterParser_html_abb306c3299a7279125b8f321ef5bbc94"><div class="ttname"><a href="../../da/de4/classshaka_1_1media_1_1WebMClusterParser.html#abb306c3299a7279125b8f321ef5bbc94">shaka::media::WebMClusterParser::Reset</a></div><div class="ttdeci">void Reset()</div><div class="ttdoc">Resets the parser state so it can accept a new cluster. </div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d8f/webm__cluster__parser_8cc_source.html#l00080">webm_cluster_parser.cc:80</a></div></div>
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