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<li class="navelem"><a class="el" href="../../dir_3f8eec2fc361645de4b1ec14c19fffc7.html">packager</a></li><li class="navelem"><a class="el" href="../../dir_b885194e7131202a9b4650a8967e838c.html">mpd</a></li><li class="navelem"><a class="el" href="../../dir_6fe4b0529cd3ec97045d3314254a0cce.html">base</a></li> </ul>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2017 Google Inc. All rights reserved.</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Use of this source code is governed by a BSD-style</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// license that can be found in the LICENSE file or at</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include "packager/mpd/base/representation.h"</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <gflags/gflags.h></span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <algorithm></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "packager/base/logging.h"</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "packager/file/file.h"</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "packager/media/base/muxer_util.h"</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "packager/mpd/base/mpd_options.h"</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "packager/mpd/base/mpd_utils.h"</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "packager/mpd/base/xml/xml_node.h"</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">namespace </span><a class="code" href="../../d8/daf/namespaceshaka.html">shaka</a> {</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">namespace </span>{</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> std::string GetMimeType(<span class="keyword">const</span> std::string& prefix,</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  MediaInfo::ContainerType container_type) {</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keywordflow">switch</span> (container_type) {</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keywordflow">case</span> MediaInfo::CONTAINER_MP4:</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keywordflow">return</span> prefix + <span class="stringliteral">"/mp4"</span>;</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keywordflow">case</span> MediaInfo::CONTAINER_MPEG2_TS:</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="comment">// NOTE: DASH MPD spec uses lowercase but RFC3555 says uppercase.</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keywordflow">return</span> prefix + <span class="stringliteral">"/MP2T"</span>;</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keywordflow">case</span> MediaInfo::CONTAINER_WEBM:</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keywordflow">return</span> prefix + <span class="stringliteral">"/webm"</span>;</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  }</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="comment">// Unsupported container types should be rejected/handled by the caller.</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  LOG(ERROR) << <span class="stringliteral">"Unrecognized container type: "</span> << container_type;</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">return</span> std::string();</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> }</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment">// Check whether the video info has width and height.</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment">// DASH IOP also requires several other fields for video representations, namely</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment">// width, height, framerate, and sar.</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keywordtype">bool</span> HasRequiredVideoFields(<span class="keyword">const</span> MediaInfo_VideoInfo& video_info) {</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">if</span> (!video_info.has_height() || !video_info.has_width()) {</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  LOG(ERROR)</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  << <span class="stringliteral">"Width and height are required fields for generating a valid MPD."</span>;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  }</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="comment">// These fields are not required for a valid MPD, but required for DASH IOP</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="comment">// compliant MPD. MpdBuilder can keep generating MPDs without these fields.</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  LOG_IF(WARNING, !video_info.has_time_scale())</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  << <span class="stringliteral">"Video info does not contain timescale required for "</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="stringliteral">"calculating framerate. @frameRate is required for DASH IOP."</span>;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  LOG_IF(WARNING, !video_info.has_pixel_width())</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  << <span class="stringliteral">"Video info does not contain pixel_width to calculate the sample "</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="stringliteral">"aspect ratio required for DASH IOP."</span>;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  LOG_IF(WARNING, !video_info.has_pixel_height())</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  << <span class="stringliteral">"Video info does not contain pixel_height to calculate the sample "</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="stringliteral">"aspect ratio required for DASH IOP."</span>;</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> }</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> uint32_t GetTimeScale(<span class="keyword">const</span> MediaInfo& media_info) {</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">if</span> (media_info.has_reference_time_scale()) {</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">return</span> media_info.reference_time_scale();</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  }</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">if</span> (media_info.has_video_info()) {</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">return</span> media_info.video_info().time_scale();</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  }</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">if</span> (media_info.has_audio_info()) {</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">return</span> media_info.audio_info().time_scale();</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  }</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  LOG(WARNING) << <span class="stringliteral">"No timescale specified, using 1 as timescale."</span>;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> }</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> uint64_t LastSegmentStartTime(<span class="keyword">const</span> SegmentInfo& segment_info) {</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">return</span> segment_info.start_time + segment_info.duration * segment_info.repeat;</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> }</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment">// This is equal to |segment_info| end time</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> uint64_t LastSegmentEndTime(<span class="keyword">const</span> SegmentInfo& segment_info) {</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">return</span> segment_info.start_time +</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  segment_info.duration * (segment_info.repeat + 1);</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> }</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> uint64_t LatestSegmentStartTime(<span class="keyword">const</span> std::list<SegmentInfo>& segments) {</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  DCHECK(!segments.empty());</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keyword">const</span> SegmentInfo& latest_segment = segments.back();</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">return</span> LastSegmentStartTime(latest_segment);</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> }</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment">// Given |timeshift_limit|, finds out the number of segments that are no longer</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment">// valid and should be removed from |segment_info|.</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> uint64_t SearchTimedOutRepeatIndex(uint64_t timeshift_limit,</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keyword">const</span> SegmentInfo& segment_info) {</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  DCHECK_LE(timeshift_limit, LastSegmentEndTime(segment_info));</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">if</span> (timeshift_limit < segment_info.start_time)</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">return</span> (timeshift_limit - segment_info.start_time) / segment_info.duration;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> }</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> } <span class="comment">// namespace</span></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div><div class="line"><a name="l00111"></a><span class="lineno"><a class="line" href="../../de/d52/classshaka_1_1Representation.html#a997138fcaa5deef5151a64a2d7ce6aeb"> 111</a></span> <a class="code" href="../../de/d52/classshaka_1_1Representation.html#a997138fcaa5deef5151a64a2d7ce6aeb">Representation::Representation</a>(</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keyword">const</span> MediaInfo& media_info,</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keyword">const</span> <a class="code" href="../../d1/df3/structshaka_1_1MpdOptions.html">MpdOptions</a>& mpd_options,</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  uint32_t <span class="keywordtype">id</span>,</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  std::unique_ptr<RepresentationStateChangeListener> state_change_listener)</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  : media_info_(media_info),</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  id_(id),</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  bandwidth_estimator_(<a class="code" href="../../da/d2c/classshaka_1_1BandwidthEstimator.html">BandwidthEstimator</a>::kUseAllBlocks),</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  mpd_options_(mpd_options),</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  state_change_listener_(<a class="code" href="../../d8/dcc/namespacestd.html">std</a>::move(state_change_listener)),</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  allow_approximate_segment_timeline_(</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="comment">// TODO(kqyang): Need a better check. $Time is legitimate but not a</span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="comment">// template.</span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  media_info.segment_template().find(<span class="stringliteral">"$Time"</span>) == <a class="code" href="../../d8/dcc/namespacestd.html">std</a>::string::npos &&</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  mpd_options_.mpd_params.allow_approximate_segment_timeline) {}</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div><div class="line"><a name="l00127"></a><span class="lineno"><a class="line" href="../../de/d52/classshaka_1_1Representation.html#a1854062c6c5a3a1e622fca4d47eb4903"> 127</a></span> <a class="code" href="../../de/d52/classshaka_1_1Representation.html#a997138fcaa5deef5151a64a2d7ce6aeb">Representation::Representation</a>(</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keyword">const</span> <a class="code" href="../../de/d52/classshaka_1_1Representation.html">Representation</a>& representation,</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  std::unique_ptr<RepresentationStateChangeListener> state_change_listener)</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  : <a class="code" href="../../de/d52/classshaka_1_1Representation.html">Representation</a>(representation.media_info_,</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  representation.mpd_options_,</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  representation.id_,</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <a class="code" href="../../d8/dcc/namespacestd.html">std</a>::move(state_change_listener)) {</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  mime_type_ = representation.mime_type_;</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  codecs_ = representation.codecs_;</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  start_number_ = representation.start_number_;</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <a class="code" href="../../dc/de1/structshaka_1_1SegmentInfo.html">SegmentInfo</a>& segment_info : representation.segment_infos_)</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  start_number_ += segment_info.repeat + 1;</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> }</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> Representation::~Representation() {}</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div><div class="line"><a name="l00144"></a><span class="lineno"><a class="line" href="../../de/d52/classshaka_1_1Representation.html#ae998409ae94f3ba12909a96e8f3f4f7e"> 144</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../de/d52/classshaka_1_1Representation.html#ae998409ae94f3ba12909a96e8f3f4f7e">Representation::Init</a>() {</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">if</span> (!AtLeastOneTrue(media_info_.has_video_info(),</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  media_info_.has_audio_info(),</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  media_info_.has_text_info())) {</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="comment">// This is an error. Segment information can be in AdaptationSet, Period, or</span></div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">// MPD but the interface does not provide a way to set them.</span></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// See 5.3.9.1 ISO 23009-1:2012 for segment info.</span></div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  LOG(ERROR) << <span class="stringliteral">"Representation needs one of video, audio, or text."</span>;</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  }</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">if</span> (MoreThanOneTrue(media_info_.has_video_info(),</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  media_info_.has_audio_info(),</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  media_info_.has_text_info())) {</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  LOG(ERROR) << <span class="stringliteral">"Only one of VideoInfo, AudioInfo, or TextInfo can be set."</span>;</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  }</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">if</span> (media_info_.container_type() == MediaInfo::CONTAINER_UNKNOWN) {</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  LOG(ERROR) << <span class="stringliteral">"'container_type' in MediaInfo cannot be CONTAINER_UNKNOWN."</span>;</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  }</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">if</span> (media_info_.has_video_info()) {</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  mime_type_ = GetVideoMimeType();</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">if</span> (!HasRequiredVideoFields(media_info_.video_info())) {</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  LOG(ERROR) << <span class="stringliteral">"Missing required fields to create a video Representation."</span>;</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  }</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (media_info_.has_audio_info()) {</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  mime_type_ = GetAudioMimeType();</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (media_info_.has_text_info()) {</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  mime_type_ = GetTextMimeType();</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  }</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">if</span> (mime_type_.empty())</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> </div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  codecs_ = GetCodecs(media_info_);</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span> }</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div><div class="line"><a name="l00186"></a><span class="lineno"><a class="line" href="../../de/d52/classshaka_1_1Representation.html#a265d014093c9073b08505013886aaa8d"> 186</a></span> <span class="keywordtype">void</span> <a class="code" href="../../de/d52/classshaka_1_1Representation.html#a265d014093c9073b08505013886aaa8d">Representation::AddContentProtectionElement</a>(</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keyword">const</span> <a class="code" href="../../da/d43/structshaka_1_1ContentProtectionElement.html">ContentProtectionElement</a>& content_protection_element) {</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  content_protection_elements_.push_back(content_protection_element);</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  RemoveDuplicateAttributes(&content_protection_elements_.back());</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> }</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> </div><div class="line"><a name="l00192"></a><span class="lineno"><a class="line" href="../../de/d52/classshaka_1_1Representation.html#a3d17325903aa01f0c8ff7753d94ff330"> 192</a></span> <span class="keywordtype">void</span> <a class="code" href="../../de/d52/classshaka_1_1Representation.html#a3d17325903aa01f0c8ff7753d94ff330">Representation::UpdateContentProtectionPssh</a>(<span class="keyword">const</span> std::string& drm_uuid,</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keyword">const</span> std::string& pssh) {</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  UpdateContentProtectionPsshHelper(drm_uuid, pssh,</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  &content_protection_elements_);</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span> }</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> </div><div class="line"><a name="l00198"></a><span class="lineno"><a class="line" href="../../de/d52/classshaka_1_1Representation.html#a6ca8bbfd34ef8ca782d2ef18aeaad932"> 198</a></span> <span class="keywordtype">void</span> <a class="code" href="../../de/d52/classshaka_1_1Representation.html#a6ca8bbfd34ef8ca782d2ef18aeaad932">Representation::AddNewSegment</a>(uint64_t start_time,</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  uint64_t duration,</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  uint64_t size) {</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">if</span> (start_time == 0 && duration == 0) {</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  LOG(WARNING) << <span class="stringliteral">"Got segment with start_time and duration == 0. Ignoring."</span>;</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  }</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span> </div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordflow">if</span> (state_change_listener_)</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  state_change_listener_->OnNewSegmentForRepresentation(start_time, duration);</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span> </div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  AddSegmentInfo(start_time, duration);</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span> </div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  bandwidth_estimator_.<a class="code" href="../../da/d2c/classshaka_1_1BandwidthEstimator.html#a7c73789c7c3f9b70dd2c23e49640fcc6">AddBlock</a>(</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  size, static_cast<double>(duration) / media_info_.reference_time_scale());</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> </div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  SlideWindow();</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  DCHECK_GE(segment_infos_.size(), 1u);</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> }</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> </div><div class="line"><a name="l00218"></a><span class="lineno"><a class="line" href="../../de/d52/classshaka_1_1Representation.html#a11b32833166b9c4bea78cca2c6069d98"> 218</a></span> <span class="keywordtype">void</span> <a class="code" href="../../de/d52/classshaka_1_1Representation.html#a11b32833166b9c4bea78cca2c6069d98">Representation::SetSampleDuration</a>(uint32_t frame_duration) {</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="comment">// Sample duration is used to generate approximate SegmentTimeline.</span></div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="comment">// Text is required to have exactly the same segment duration.</span></div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordflow">if</span> (media_info_.has_audio_info() || media_info_.has_video_info())</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  frame_duration_ = frame_duration;</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordflow">if</span> (media_info_.has_video_info()) {</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  media_info_.mutable_video_info()->set_frame_duration(frame_duration);</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordflow">if</span> (state_change_listener_) {</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  state_change_listener_->OnSetFrameRateForRepresentation(</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  frame_duration, media_info_.video_info().time_scale());</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  }</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  }</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> }</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span> </div><div class="line"><a name="l00233"></a><span class="lineno"><a class="line" href="../../de/d52/classshaka_1_1Representation.html#a524291f7a968cb040fdce0ac1db5fbd3"> 233</a></span> <span class="keyword">const</span> MediaInfo& <a class="code" href="../../de/d52/classshaka_1_1Representation.html#a524291f7a968cb040fdce0ac1db5fbd3">Representation::GetMediaInfo</a>()<span class="keyword"> const </span>{</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keywordflow">return</span> media_info_;</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span> }</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span> </div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="comment">// Uses info in |media_info_| and |content_protection_elements_| to create a</span></div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="comment">// "Representation" node.</span></div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="comment">// MPD schema has strict ordering. The following must be done in order.</span></div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="comment">// AddVideoInfo() (possibly adds FramePacking elements), AddAudioInfo() (Adds</span></div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="comment">// AudioChannelConfig elements), AddContentProtectionElements*(), and</span></div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="comment">// AddVODOnlyInfo() (Adds segment info).</span></div><div class="line"><a name="l00243"></a><span class="lineno"><a class="line" href="../../de/d52/classshaka_1_1Representation.html#a606afa5df6a90f49faad0ce427b7e960"> 243</a></span> xml::scoped_xml_ptr<xmlNode> <a class="code" href="../../de/d52/classshaka_1_1Representation.html#a606afa5df6a90f49faad0ce427b7e960">Representation::GetXml</a>() {</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">if</span> (!HasRequiredMediaInfoFields()) {</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  LOG(ERROR) << <span class="stringliteral">"MediaInfo missing required fields."</span>;</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">return</span> xml::scoped_xml_ptr<xmlNode>();</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  }</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> </div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keyword">const</span> uint64_t bandwidth = media_info_.has_bandwidth()</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  ? media_info_.bandwidth()</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  : bandwidth_estimator_.<a class="code" href="../../da/d2c/classshaka_1_1BandwidthEstimator.html#a0df6c40f43a89d3d481392ac0298e37c">Max</a>();</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> </div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  DCHECK(!(HasVODOnlyFields(media_info_) && HasLiveOnlyFields(media_info_)));</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> </div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <a class="code" href="../../df/d9e/classshaka_1_1xml_1_1RepresentationXmlNode.html">xml::RepresentationXmlNode</a> representation;</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="comment">// Mandatory fields for Representation.</span></div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  representation.<a class="code" href="../../d1/d31/classshaka_1_1xml_1_1XmlNode.html#a7479055041708fb681957a838e7ecc1f">SetId</a>(id_);</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  representation.<a class="code" href="../../d1/d31/classshaka_1_1xml_1_1XmlNode.html#ab15dbcc1a051218dc16f44584276ad20">SetIntegerAttribute</a>(<span class="stringliteral">"bandwidth"</span>, bandwidth);</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">if</span> (!codecs_.empty())</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  representation.<a class="code" href="../../d1/d31/classshaka_1_1xml_1_1XmlNode.html#afc83f9dbaedc8ba0fc9cc1153ac23329">SetStringAttribute</a>(<span class="stringliteral">"codecs"</span>, codecs_);</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  representation.<a class="code" href="../../d1/d31/classshaka_1_1xml_1_1XmlNode.html#afc83f9dbaedc8ba0fc9cc1153ac23329">SetStringAttribute</a>(<span class="stringliteral">"mimeType"</span>, mime_type_);</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span> </div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> has_video_info = media_info_.has_video_info();</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> has_audio_info = media_info_.has_audio_info();</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span> </div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="keywordflow">if</span> (has_video_info &&</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  !representation.<a class="code" href="../../df/d9e/classshaka_1_1xml_1_1RepresentationXmlNode.html#aeb5b425a0d9fe472e13e508ee431307a">AddVideoInfo</a>(</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  media_info_.video_info(),</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  !(output_suppression_flags_ & kSuppressWidth),</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  !(output_suppression_flags_ & kSuppressHeight),</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  !(output_suppression_flags_ & kSuppressFrameRate))) {</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  LOG(ERROR) << <span class="stringliteral">"Failed to add video info to Representation XML."</span>;</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="keywordflow">return</span> xml::scoped_xml_ptr<xmlNode>();</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  }</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span> </div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keywordflow">if</span> (has_audio_info &&</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  !representation.<a class="code" href="../../df/d9e/classshaka_1_1xml_1_1RepresentationXmlNode.html#a49050cf0e7883bfa6e8e2fb0174b2a7a">AddAudioInfo</a>(media_info_.audio_info())) {</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  LOG(ERROR) << <span class="stringliteral">"Failed to add audio info to Representation XML."</span>;</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keywordflow">return</span> xml::scoped_xml_ptr<xmlNode>();</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  }</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span> </div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keywordflow">if</span> (!representation.AddContentProtectionElements(</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  content_protection_elements_)) {</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordflow">return</span> xml::scoped_xml_ptr<xmlNode>();</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  }</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span> </div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keywordflow">if</span> (HasVODOnlyFields(media_info_) &&</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  !representation.<a class="code" href="../../df/d9e/classshaka_1_1xml_1_1RepresentationXmlNode.html#a68a51ea870f2a24379a9b81cb97b6ac0">AddVODOnlyInfo</a>(media_info_)) {</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  LOG(ERROR) << <span class="stringliteral">"Failed to add VOD info."</span>;</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordflow">return</span> xml::scoped_xml_ptr<xmlNode>();</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  }</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span> </div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="keywordflow">if</span> (HasLiveOnlyFields(media_info_) &&</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  !representation.<a class="code" href="../../df/d9e/classshaka_1_1xml_1_1RepresentationXmlNode.html#ae9ff190e1a653a348b00b5edd9d6cc60">AddLiveOnlyInfo</a>(media_info_, segment_infos_,</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  start_number_)) {</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  LOG(ERROR) << <span class="stringliteral">"Failed to add Live info."</span>;</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordflow">return</span> xml::scoped_xml_ptr<xmlNode>();</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  }</div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="comment">// TODO(rkuroiwa): It is likely that all representations have the exact same</span></div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="comment">// SegmentTemplate. Optimize and propagate the tag up to AdaptationSet level.</span></div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span> </div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  output_suppression_flags_ = 0;</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keywordflow">return</span> representation.<a class="code" href="../../d1/d31/classshaka_1_1xml_1_1XmlNode.html#a0be0a3e9b041978e118d994c1f13e8fb">PassScopedPtr</a>();</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span> }</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span> </div><div class="line"><a name="l00306"></a><span class="lineno"><a class="line" href="../../de/d52/classshaka_1_1Representation.html#a473e45dbbf64e6ab6ed670ccedac84ed"> 306</a></span> <span class="keywordtype">void</span> <a class="code" href="../../de/d52/classshaka_1_1Representation.html#a473e45dbbf64e6ab6ed670ccedac84ed">Representation::SuppressOnce</a>(SuppressFlag flag) {</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  output_suppression_flags_ |= flag;</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span> }</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span> </div><div class="line"><a name="l00310"></a><span class="lineno"><a class="line" href="../../de/d52/classshaka_1_1Representation.html#aa93fd6cd965d3091a280debc93656d57"> 310</a></span> <span class="keywordtype">void</span> <a class="code" href="../../de/d52/classshaka_1_1Representation.html#aa93fd6cd965d3091a280debc93656d57">Representation::SetPresentationTimeOffset</a>(</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordtype">double</span> presentation_time_offset) {</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  uint64_t pto = presentation_time_offset * media_info_.reference_time_scale();</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="keywordflow">if</span> (pto <= 0)</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  media_info_.set_presentation_time_offset(pto);</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span> }</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span> </div><div class="line"><a name="l00318"></a><span class="lineno"><a class="line" href="../../de/d52/classshaka_1_1Representation.html#a94fcb546e555637d33286515c1a44545"> 318</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../de/d52/classshaka_1_1Representation.html#a94fcb546e555637d33286515c1a44545">Representation::GetStartAndEndTimestamps</a>(</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keywordtype">double</span>* start_timestamp_seconds,</div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keywordtype">double</span>* end_timestamp_seconds)<span class="keyword"> const </span>{</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="keywordflow">if</span> (segment_infos_.empty())</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span> </div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keywordflow">if</span> (start_timestamp_seconds) {</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  *start_timestamp_seconds =</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(segment_infos_.begin()->start_time) /</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  GetTimeScale(media_info_);</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  }</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="keywordflow">if</span> (end_timestamp_seconds) {</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  *end_timestamp_seconds =</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(segment_infos_.rbegin()->start_time +</div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  segment_infos_.rbegin()->duration *</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  (segment_infos_.rbegin()->repeat + 1)) /</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  GetTimeScale(media_info_);</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  }</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span> }</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span> </div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span> <span class="keywordtype">bool</span> Representation::HasRequiredMediaInfoFields()<span class="keyword"> const </span>{</div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keywordflow">if</span> (HasVODOnlyFields(media_info_) && HasLiveOnlyFields(media_info_)) {</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  LOG(ERROR) << <span class="stringliteral">"MediaInfo cannot have both VOD and Live fields."</span>;</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  }</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span> </div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="keywordflow">if</span> (!media_info_.has_container_type()) {</div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  LOG(ERROR) << <span class="stringliteral">"MediaInfo missing required field: container_type."</span>;</div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  }</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span> </div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span> }</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span> </div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span> <span class="keywordtype">void</span> Representation::AddSegmentInfo(uint64_t start_time, uint64_t duration) {</div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="keyword">const</span> uint64_t kNoRepeat = 0;</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keyword">const</span> uint64_t adjusted_duration = AdjustDuration(duration);</div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span> </div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordflow">if</span> (!segment_infos_.empty()) {</div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="comment">// Contiguous segment.</span></div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keyword">const</span> <a class="code" href="../../dc/de1/structshaka_1_1SegmentInfo.html">SegmentInfo</a>& previous = segment_infos_.back();</div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keyword">const</span> uint64_t previous_segment_end_time =</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  previous.start_time + previous.duration * (previous.repeat + 1);</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="comment">// Make it continuous if the segment start time is close to previous segment</span></div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="comment">// end time.</span></div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="keywordflow">if</span> (ApproximiatelyEqual(previous_segment_end_time, start_time)) {</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keyword">const</span> uint64_t segment_end_time_for_same_duration =</div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  previous_segment_end_time + previous.duration;</div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="keyword">const</span> uint64_t actual_segment_end_time = start_time + duration;</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="comment">// Consider the segments having identical duration if the segment end time</span></div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="comment">// is close to calculated segment end time by assuming identical duration.</span></div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keywordflow">if</span> (ApproximiatelyEqual(segment_end_time_for_same_duration,</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  actual_segment_end_time)) {</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  ++segment_infos_.back().repeat;</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  segment_infos_.push_back(</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  {previous_segment_end_time,</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  actual_segment_end_time - previous_segment_end_time, kNoRepeat});</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  }</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  }</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span> </div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="comment">// A gap since previous.</span></div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="keyword">const</span> uint64_t kRoundingErrorGrace = 5;</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keywordflow">if</span> (previous_segment_end_time + kRoundingErrorGrace < start_time) {</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  LOG(WARNING) << <span class="stringliteral">"Found a gap of size "</span></div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  << (start_time - previous_segment_end_time)</div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  << <span class="stringliteral">" > kRoundingErrorGrace ("</span> << kRoundingErrorGrace</div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  << <span class="stringliteral">"). The new segment starts at "</span> << start_time</div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  << <span class="stringliteral">" but the previous segment ends at "</span></div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  << previous_segment_end_time << <span class="stringliteral">"."</span>;</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  }</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span> </div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="comment">// No overlapping segments.</span></div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="keywordflow">if</span> (start_time < previous_segment_end_time - kRoundingErrorGrace) {</div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  LOG(WARNING)</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  << <span class="stringliteral">"Segments should not be overlapping. The new segment starts at "</span></div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  << start_time << <span class="stringliteral">" but the previous segment ends at "</span></div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  << previous_segment_end_time << <span class="stringliteral">"."</span>;</div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  }</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  }</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span> </div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  segment_infos_.push_back({start_time, adjusted_duration, kNoRepeat});</div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span> }</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span> </div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span> <span class="keywordtype">bool</span> Representation::ApproximiatelyEqual(uint64_t time1, uint64_t time2)<span class="keyword"> const </span>{</div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <span class="keywordflow">if</span> (!allow_approximate_segment_timeline_)</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="keywordflow">return</span> time1 == time2;</div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span> </div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="comment">// It is not always possible to align segment duration to target duration</span></div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <span class="comment">// exactly. For example, for AAC with sampling rate of 44100, there are always</span></div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="comment">// 1024 audio samples per frame, so the frame duration is 1024/44100. For a</span></div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="comment">// target duration of 2 seconds, the closest segment duration would be 1.984</span></div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="comment">// or 2.00533.</span></div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span> </div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="comment">// An arbitrary error threshold cap. This makes sure that the error is not too</span></div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="comment">// large for large samples.</span></div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> kErrorThresholdSeconds = 0.05;</div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span> </div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="comment">// So we consider two times equal if they differ by less than one sample.</span></div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keyword">const</span> uint32_t error_threshold =</div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  std::min(frame_duration_,</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  static_cast<uint32_t>(kErrorThresholdSeconds *</div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  media_info_.reference_time_scale()));</div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="keywordflow">return</span> time1 < time2 + error_threshold && time2 < time1 + error_threshold;</div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span> }</div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span> </div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span> uint64_t Representation::AdjustDuration(uint64_t duration)<span class="keyword"> const </span>{</div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="keywordflow">if</span> (!allow_approximate_segment_timeline_)</div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keywordflow">return</span> duration;</div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keyword">const</span> uint64_t scaled_target_duration =</div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  mpd_options_.<a class="code" href="../../d1/df3/structshaka_1_1MpdOptions.html#a8bfe5fd4b557a8dc4d205ff395020864">target_segment_duration</a> * media_info_.reference_time_scale();</div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="keywordflow">return</span> ApproximiatelyEqual(scaled_target_duration, duration)</div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  ? scaled_target_duration</div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  : duration;</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span> }</div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span> </div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span> <span class="keywordtype">void</span> Representation::SlideWindow() {</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  DCHECK(!segment_infos_.empty());</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="keywordflow">if</span> (mpd_options_.mpd_params.<a class="code" href="../../df/ddc/structshaka_1_1MpdParams.html#a95e4824708c8de4b882b86772f680032">time_shift_buffer_depth</a> <= 0.0 ||</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  mpd_options_.mpd_type == MpdType::kStatic)</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span> </div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="keyword">const</span> uint32_t time_scale = GetTimeScale(media_info_);</div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  DCHECK_GT(time_scale, 0u);</div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span> </div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  uint64_t time_shift_buffer_depth = <span class="keyword">static_cast<</span>uint64_t<span class="keyword">></span>(</div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  mpd_options_.mpd_params.<a class="code" href="../../df/ddc/structshaka_1_1MpdParams.html#a95e4824708c8de4b882b86772f680032">time_shift_buffer_depth</a> * time_scale);</div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span> </div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="comment">// The start time of the latest segment is considered the current_play_time,</span></div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="comment">// and this should guarantee that the latest segment will stay in the list.</span></div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <span class="keyword">const</span> uint64_t current_play_time = LatestSegmentStartTime(segment_infos_);</div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="keywordflow">if</span> (current_play_time <= time_shift_buffer_depth)</div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span> </div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="keyword">const</span> uint64_t timeshift_limit = current_play_time - time_shift_buffer_depth;</div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span> </div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="comment">// First remove all the SegmentInfos that are completely out of range, by</span></div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="comment">// looking at the very last segment's end time.</span></div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  std::list<SegmentInfo>::iterator first = segment_infos_.begin();</div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  std::list<SegmentInfo>::iterator last = first;</div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="keywordflow">for</span> (; last != segment_infos_.end(); ++last) {</div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <span class="keyword">const</span> uint64_t last_segment_end_time = LastSegmentEndTime(*last);</div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  <span class="keywordflow">if</span> (timeshift_limit < last_segment_end_time)</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  RemoveSegments(last->start_time, last->duration, last->repeat + 1);</div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  start_number_ += last->repeat + 1;</div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  }</div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  segment_infos_.erase(first, last);</div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span> </div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <span class="comment">// Now some segment in the first SegmentInfo should be left in the list.</span></div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <a class="code" href="../../dc/de1/structshaka_1_1SegmentInfo.html">SegmentInfo</a>* first_segment_info = &segment_infos_.front();</div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  DCHECK_LE(timeshift_limit, LastSegmentEndTime(*first_segment_info));</div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span> </div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="comment">// Identify which segments should still be in the SegmentInfo.</span></div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <span class="keyword">const</span> uint64_t repeat_index =</div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  SearchTimedOutRepeatIndex(timeshift_limit, *first_segment_info);</div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keywordflow">if</span> (repeat_index == 0)</div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span> </div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  RemoveSegments(first_segment_info->start_time, first_segment_info->duration,</div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  repeat_index);</div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span> </div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  first_segment_info->start_time = first_segment_info->start_time +</div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  first_segment_info->duration * repeat_index;</div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  first_segment_info->repeat = first_segment_info->repeat - repeat_index;</div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  start_number_ += repeat_index;</div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span> }</div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span> </div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span> <span class="keywordtype">void</span> Representation::RemoveSegments(uint64_t start_time,</div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  uint64_t duration,</div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  uint64_t num_segments) {</div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  <span class="keywordflow">if</span> (mpd_options_.mpd_params.<a class="code" href="../../df/ddc/structshaka_1_1MpdParams.html#a84378ed480ed2e9b8915afd9c349b458">preserved_segments_outside_live_window</a> == 0)</div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span> </div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < num_segments; ++i) {</div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  segments_to_be_removed_.push_back(media::GetSegmentName(</div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  media_info_.segment_template(), start_time + i * duration,</div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  start_number_ - 1 + i, media_info_.bandwidth()));</div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  }</div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <span class="keywordflow">while</span> (segments_to_be_removed_.size() ></div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  mpd_options_.mpd_params.<a class="code" href="../../df/ddc/structshaka_1_1MpdParams.html#a84378ed480ed2e9b8915afd9c349b458">preserved_segments_outside_live_window</a>) {</div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  VLOG(2) << <span class="stringliteral">"Deleting "</span> << segments_to_be_removed_.front();</div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  <a class="code" href="../../d3/d73/classshaka_1_1File.html#a383c9f670511961f334569fd1a7a103b">File::Delete</a>(segments_to_be_removed_.front().c_str());</div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  segments_to_be_removed_.pop_front();</div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  }</div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span> }</div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span> </div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span> std::string Representation::GetVideoMimeType()<span class="keyword"> const </span>{</div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  <span class="keywordflow">return</span> GetMimeType(<span class="stringliteral">"video"</span>, media_info_.container_type());</div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span> }</div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span> </div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span> std::string Representation::GetAudioMimeType()<span class="keyword"> const </span>{</div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  <span class="keywordflow">return</span> GetMimeType(<span class="stringliteral">"audio"</span>, media_info_.container_type());</div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span> }</div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span> </div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span> std::string Representation::GetTextMimeType()<span class="keyword"> const </span>{</div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  CHECK(media_info_.has_text_info());</div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="keywordflow">if</span> (media_info_.text_info().codec() == <span class="stringliteral">"ttml"</span>) {</div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <span class="keywordflow">switch</span> (media_info_.container_type()) {</div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <span class="keywordflow">case</span> MediaInfo::CONTAINER_TEXT:</div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <span class="keywordflow">return</span> <span class="stringliteral">"application/ttml+xml"</span>;</div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <span class="keywordflow">case</span> MediaInfo::CONTAINER_MP4:</div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  <span class="keywordflow">return</span> <span class="stringliteral">"application/mp4"</span>;</div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  LOG(ERROR) << <span class="stringliteral">"Failed to determine MIME type for TTML container: "</span></div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  << media_info_.container_type();</div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  <span class="keywordflow">return</span> <span class="stringliteral">""</span>;</div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  }</div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  }</div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <span class="keywordflow">if</span> (media_info_.text_info().codec() == <span class="stringliteral">"wvtt"</span>) {</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  <span class="keywordflow">if</span> (media_info_.container_type() == MediaInfo::CONTAINER_TEXT) {</div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <span class="keywordflow">return</span> <span class="stringliteral">"text/vtt"</span>;</div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (media_info_.container_type() == MediaInfo::CONTAINER_MP4) {</div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <span class="keywordflow">return</span> <span class="stringliteral">"application/mp4"</span>;</div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  }</div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  LOG(ERROR) << <span class="stringliteral">"Failed to determine MIME type for VTT container: "</span></div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  << media_info_.container_type();</div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <span class="keywordflow">return</span> <span class="stringliteral">""</span>;</div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  }</div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span> </div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  LOG(ERROR) << <span class="stringliteral">"Cannot determine MIME type for format: "</span></div><div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  << media_info_.text_info().codec()</div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  << <span class="stringliteral">" container: "</span> << media_info_.container_type();</div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  <span class="keywordflow">return</span> <span class="stringliteral">""</span>;</div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span> }</div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span> </div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span> } <span class="comment">// namespace shaka</span></div><div class="ttc" id="classshaka_1_1xml_1_1RepresentationXmlNode_html_aeb5b425a0d9fe472e13e508ee431307a"><div class="ttname"><a href="../../df/d9e/classshaka_1_1xml_1_1RepresentationXmlNode.html#aeb5b425a0d9fe472e13e508ee431307a">shaka::xml::RepresentationXmlNode::AddVideoInfo</a></div><div class="ttdeci">bool AddVideoInfo(const MediaInfo::VideoInfo &video_info, bool set_width, bool set_height, bool set_frame_rate)</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d96/xml__node_8cc_source.html#l00266">xml_node.cc:266</a></div></div>
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<div class="ttc" id="classshaka_1_1Representation_html_a524291f7a968cb040fdce0ac1db5fbd3"><div class="ttname"><a href="../../de/d52/classshaka_1_1Representation.html#a524291f7a968cb040fdce0ac1db5fbd3">shaka::Representation::GetMediaInfo</a></div><div class="ttdeci">virtual const MediaInfo & GetMediaInfo() const</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d94/representation_8cc_source.html#l00233">representation.cc:233</a></div></div>
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<div class="ttc" id="classshaka_1_1xml_1_1RepresentationXmlNode_html"><div class="ttname"><a href="../../df/d9e/classshaka_1_1xml_1_1RepresentationXmlNode.html">shaka::xml::RepresentationXmlNode</a></div><div class="ttdoc">RepresentationType in MPD. </div><div class="ttdef"><b>Definition:</b> <a href="../../dd/de7/xml__node_8h_source.html#l00139">xml_node.h:139</a></div></div>
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<div class="ttc" id="classshaka_1_1Representation_html_a6ca8bbfd34ef8ca782d2ef18aeaad932"><div class="ttname"><a href="../../de/d52/classshaka_1_1Representation.html#a6ca8bbfd34ef8ca782d2ef18aeaad932">shaka::Representation::AddNewSegment</a></div><div class="ttdeci">virtual void AddNewSegment(uint64_t start_time, uint64_t duration, uint64_t size)</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d94/representation_8cc_source.html#l00198">representation.cc:198</a></div></div>
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<div class="ttc" id="classshaka_1_1File_html_a383c9f670511961f334569fd1a7a103b"><div class="ttname"><a href="../../d3/d73/classshaka_1_1File.html#a383c9f670511961f334569fd1a7a103b">shaka::File::Delete</a></div><div class="ttdeci">static bool Delete(const char *file_name)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/dfc/file_8cc_source.html#l00198">file.cc:198</a></div></div>
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<div class="ttc" id="classshaka_1_1Representation_html_ae998409ae94f3ba12909a96e8f3f4f7e"><div class="ttname"><a href="../../de/d52/classshaka_1_1Representation.html#ae998409ae94f3ba12909a96e8f3f4f7e">shaka::Representation::Init</a></div><div class="ttdeci">bool Init()</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d94/representation_8cc_source.html#l00144">representation.cc:144</a></div></div>
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<div class="ttc" id="structshaka_1_1MpdParams_html_a84378ed480ed2e9b8915afd9c349b458"><div class="ttname"><a href="../../df/ddc/structshaka_1_1MpdParams.html#a84378ed480ed2e9b8915afd9c349b458">shaka::MpdParams::preserved_segments_outside_live_window</a></div><div class="ttdeci">size_t preserved_segments_outside_live_window</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d07/mpd__params_8h_source.html#l00046">mpd_params.h:46</a></div></div>
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<div class="ttc" id="classshaka_1_1Representation_html_a997138fcaa5deef5151a64a2d7ce6aeb"><div class="ttname"><a href="../../de/d52/classshaka_1_1Representation.html#a997138fcaa5deef5151a64a2d7ce6aeb">shaka::Representation::Representation</a></div><div class="ttdeci">Representation(const MediaInfo &media_info, const MpdOptions &mpd_options, uint32_t representation_id, std::unique_ptr< RepresentationStateChangeListener > state_change_listener)</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d94/representation_8cc_source.html#l00111">representation.cc:111</a></div></div>
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<div class="ttc" id="classshaka_1_1Representation_html_a11b32833166b9c4bea78cca2c6069d98"><div class="ttname"><a href="../../de/d52/classshaka_1_1Representation.html#a11b32833166b9c4bea78cca2c6069d98">shaka::Representation::SetSampleDuration</a></div><div class="ttdeci">virtual void SetSampleDuration(uint32_t sample_duration)</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d94/representation_8cc_source.html#l00218">representation.cc:218</a></div></div>
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<div class="ttc" id="namespacestd_html"><div class="ttname"><a href="../../d8/dcc/namespacestd.html">std</a></div><div class="ttdoc">STL namespace. </div></div>
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<div class="ttc" id="classshaka_1_1xml_1_1XmlNode_html_a0be0a3e9b041978e118d994c1f13e8fb"><div class="ttname"><a href="../../d1/d31/classshaka_1_1xml_1_1XmlNode.html#a0be0a3e9b041978e118d994c1f13e8fb">shaka::xml::XmlNode::PassScopedPtr</a></div><div class="ttdeci">scoped_xml_ptr< xmlNode > PassScopedPtr()</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d96/xml__node_8cc_source.html#l00169">xml_node.cc:169</a></div></div>
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<div class="ttc" id="namespaceshaka_html"><div class="ttname"><a href="../../d8/daf/namespaceshaka.html">shaka</a></div><div class="ttdoc">All the methods that are virtual are virtual for mocking. </div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d15/gflags__hex__bytes_8cc_source.html#l00011">gflags_hex_bytes.cc:11</a></div></div>
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<div class="ttc" id="classshaka_1_1xml_1_1RepresentationXmlNode_html_a68a51ea870f2a24379a9b81cb97b6ac0"><div class="ttname"><a href="../../df/d9e/classshaka_1_1xml_1_1RepresentationXmlNode.html#a68a51ea870f2a24379a9b81cb97b6ac0">shaka::xml::RepresentationXmlNode::AddVODOnlyInfo</a></div><div class="ttdeci">bool AddVODOnlyInfo(const MediaInfo &media_info)</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d96/xml__node_8cc_source.html#l00311">xml_node.cc:311</a></div></div>
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<div class="ttc" id="classshaka_1_1BandwidthEstimator_html_a7c73789c7c3f9b70dd2c23e49640fcc6"><div class="ttname"><a href="../../da/d2c/classshaka_1_1BandwidthEstimator.html#a7c73789c7c3f9b70dd2c23e49640fcc6">shaka::BandwidthEstimator::AddBlock</a></div><div class="ttdeci">void AddBlock(uint64_t size, double duration)</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d86/bandwidth__estimator_8cc_source.html#l00019">bandwidth_estimator.cc:19</a></div></div>
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<div class="ttc" id="classshaka_1_1xml_1_1XmlNode_html_afc83f9dbaedc8ba0fc9cc1153ac23329"><div class="ttname"><a href="../../d1/d31/classshaka_1_1xml_1_1XmlNode.html#afc83f9dbaedc8ba0fc9cc1153ac23329">shaka::xml::XmlNode::SetStringAttribute</a></div><div class="ttdeci">void SetStringAttribute(const char *attribute_name, const std::string &attribute)</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d96/xml__node_8cc_source.html#l00137">xml_node.cc:137</a></div></div>
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<div class="ttc" id="structshaka_1_1ContentProtectionElement_html"><div class="ttname"><a href="../../da/d43/structshaka_1_1ContentProtectionElement.html">shaka::ContentProtectionElement</a></div><div class="ttdef"><b>Definition:</b> <a href="../../de/dd6/content__protection__element_8h_source.html#l00036">content_protection_element.h:36</a></div></div>
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<div class="ttc" id="classshaka_1_1xml_1_1RepresentationXmlNode_html_ae9ff190e1a653a348b00b5edd9d6cc60"><div class="ttname"><a href="../../df/d9e/classshaka_1_1xml_1_1RepresentationXmlNode.html#ae9ff190e1a653a348b00b5edd9d6cc60">shaka::xml::RepresentationXmlNode::AddLiveOnlyInfo</a></div><div class="ttdeci">bool AddLiveOnlyInfo(const MediaInfo &media_info, const std::list< SegmentInfo > &segment_infos, uint32_t start_number)</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d96/xml__node_8cc_source.html#l00357">xml_node.cc:357</a></div></div>
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<div class="ttc" id="classshaka_1_1BandwidthEstimator_html"><div class="ttname"><a href="../../da/d2c/classshaka_1_1BandwidthEstimator.html">shaka::BandwidthEstimator</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d19/bandwidth__estimator_8h_source.html#l00017">bandwidth_estimator.h:17</a></div></div>
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<div class="ttc" id="classshaka_1_1xml_1_1XmlNode_html_a7479055041708fb681957a838e7ecc1f"><div class="ttname"><a href="../../d1/d31/classshaka_1_1xml_1_1XmlNode.html#a7479055041708fb681957a838e7ecc1f">shaka::xml::XmlNode::SetId</a></div><div class="ttdeci">void SetId(uint32_t id)</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d96/xml__node_8cc_source.html#l00160">xml_node.cc:160</a></div></div>
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<div class="ttc" id="classshaka_1_1Representation_html_a606afa5df6a90f49faad0ce427b7e960"><div class="ttname"><a href="../../de/d52/classshaka_1_1Representation.html#a606afa5df6a90f49faad0ce427b7e960">shaka::Representation::GetXml</a></div><div class="ttdeci">xml::scoped_xml_ptr< xmlNode > GetXml()</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d94/representation_8cc_source.html#l00243">representation.cc:243</a></div></div>
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<div class="ttc" id="classshaka_1_1Representation_html_aa93fd6cd965d3091a280debc93656d57"><div class="ttname"><a href="../../de/d52/classshaka_1_1Representation.html#aa93fd6cd965d3091a280debc93656d57">shaka::Representation::SetPresentationTimeOffset</a></div><div class="ttdeci">void SetPresentationTimeOffset(double presentation_time_offset)</div><div class="ttdoc">Set in SegmentBase / SegmentTemplate. </div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d94/representation_8cc_source.html#l00310">representation.cc:310</a></div></div>
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<div class="ttc" id="classshaka_1_1BandwidthEstimator_html_a0df6c40f43a89d3d481392ac0298e37c"><div class="ttname"><a href="../../da/d2c/classshaka_1_1BandwidthEstimator.html#a0df6c40f43a89d3d481392ac0298e37c">shaka::BandwidthEstimator::Max</a></div><div class="ttdeci">uint64_t Max() const</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d86/bandwidth__estimator_8cc_source.html#l00035">bandwidth_estimator.cc:35</a></div></div>
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<div class="ttc" id="structshaka_1_1MpdOptions_html_a8bfe5fd4b557a8dc4d205ff395020864"><div class="ttname"><a href="../../d1/df3/structshaka_1_1MpdOptions.html#a8bfe5fd4b557a8dc4d205ff395020864">shaka::MpdOptions::target_segment_duration</a></div><div class="ttdeci">double target_segment_duration</div><div class="ttdef"><b>Definition:</b> <a href="../../db/d60/mpd__options_8h_source.html#l00033">mpd_options.h:33</a></div></div>
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<div class="ttc" id="classshaka_1_1Representation_html_a265d014093c9073b08505013886aaa8d"><div class="ttname"><a href="../../de/d52/classshaka_1_1Representation.html#a265d014093c9073b08505013886aaa8d">shaka::Representation::AddContentProtectionElement</a></div><div class="ttdeci">virtual void AddContentProtectionElement(const ContentProtectionElement &element)</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d94/representation_8cc_source.html#l00186">representation.cc:186</a></div></div>
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<div class="ttc" id="classshaka_1_1Representation_html"><div class="ttname"><a href="../../de/d52/classshaka_1_1Representation.html">shaka::Representation</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d2b/representation_8h_source.html#l00054">representation.h:54</a></div></div>
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<div class="ttc" id="classshaka_1_1xml_1_1XmlNode_html_ab15dbcc1a051218dc16f44584276ad20"><div class="ttname"><a href="../../d1/d31/classshaka_1_1xml_1_1XmlNode.html#ab15dbcc1a051218dc16f44584276ad20">shaka::xml::XmlNode::SetIntegerAttribute</a></div><div class="ttdeci">void SetIntegerAttribute(const char *attribute_name, uint64_t number)</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d96/xml__node_8cc_source.html#l00144">xml_node.cc:144</a></div></div>
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<div class="ttc" id="structshaka_1_1MpdOptions_html"><div class="ttname"><a href="../../d1/df3/structshaka_1_1MpdOptions.html">shaka::MpdOptions</a></div><div class="ttdoc">Defines Mpd Options. </div><div class="ttdef"><b>Definition:</b> <a href="../../db/d60/mpd__options_8h_source.html#l00025">mpd_options.h:25</a></div></div>
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<div class="ttc" id="classshaka_1_1Representation_html_a3d17325903aa01f0c8ff7753d94ff330"><div class="ttname"><a href="../../de/d52/classshaka_1_1Representation.html#a3d17325903aa01f0c8ff7753d94ff330">shaka::Representation::UpdateContentProtectionPssh</a></div><div class="ttdeci">virtual void UpdateContentProtectionPssh(const std::string &drm_uuid, const std::string &pssh)</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d94/representation_8cc_source.html#l00192">representation.cc:192</a></div></div>
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<div class="ttc" id="structshaka_1_1SegmentInfo_html"><div class="ttname"><a href="../../dc/de1/structshaka_1_1SegmentInfo.html">shaka::SegmentInfo</a></div><div class="ttdef"><b>Definition:</b> <a href="../../df/de9/segment__info_8h_source.html#l00014">segment_info.h:14</a></div></div>
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<div class="ttc" id="structshaka_1_1MpdParams_html_a95e4824708c8de4b882b86772f680032"><div class="ttname"><a href="../../df/ddc/structshaka_1_1MpdParams.html#a95e4824708c8de4b882b86772f680032">shaka::MpdParams::time_shift_buffer_depth</a></div><div class="ttdeci">double time_shift_buffer_depth</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d07/mpd__params_8h_source.html#l00039">mpd_params.h:39</a></div></div>
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<div class="ttc" id="classshaka_1_1Representation_html_a473e45dbbf64e6ab6ed670ccedac84ed"><div class="ttname"><a href="../../de/d52/classshaka_1_1Representation.html#a473e45dbbf64e6ab6ed670ccedac84ed">shaka::Representation::SuppressOnce</a></div><div class="ttdeci">void SuppressOnce(SuppressFlag flag)</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d94/representation_8cc_source.html#l00306">representation.cc:306</a></div></div>
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<div class="ttc" id="classshaka_1_1xml_1_1RepresentationXmlNode_html_a49050cf0e7883bfa6e8e2fb0174b2a7a"><div class="ttname"><a href="../../df/d9e/classshaka_1_1xml_1_1RepresentationXmlNode.html#a49050cf0e7883bfa6e8e2fb0174b2a7a">shaka::xml::RepresentationXmlNode::AddAudioInfo</a></div><div class="ttdeci">bool AddAudioInfo(const MediaInfo::AudioInfo &audio_info)</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d96/xml__node_8cc_source.html#l00303">xml_node.cc:303</a></div></div>
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<div class="ttc" id="classshaka_1_1Representation_html_a94fcb546e555637d33286515c1a44545"><div class="ttname"><a href="../../de/d52/classshaka_1_1Representation.html#a94fcb546e555637d33286515c1a44545">shaka::Representation::GetStartAndEndTimestamps</a></div><div class="ttdeci">bool GetStartAndEndTimestamps(double *start_timestamp_seconds, double *end_timestamp_seconds) const</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d94/representation_8cc_source.html#l00318">representation.cc:318</a></div></div>
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