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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> <span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"></span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#ifndef PACKAGER_MPD_BASE_ADAPTATION_SET_H_</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#define PACKAGER_MPD_BASE_ADAPTATION_SET_H_</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <stdint.h></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <list></span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <map></span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <memory></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <set></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <vector></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="preprocessor">#include "packager/base/atomic_sequence_num.h"</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include "packager/base/optional.h"</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include "packager/mpd/base/xml/scoped_xml_ptr.h"</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">namespace </span><a class="code" href="../../d8/daf/namespaceshaka.html">shaka</a> {</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">class </span>MediaInfo;</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">class </span>Representation;</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">struct </span>ContentProtectionElement;</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">struct </span>MpdOptions;</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">namespace </span>xml {</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">class </span>XmlNode;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> } <span class="comment">// namespace xml</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="../../d8/d8e/classshaka_1_1AdaptationSet.html"> 38</a></span> <span class="keyword">class </span><a class="code" href="../../d8/d8e/classshaka_1_1AdaptationSet.html">AdaptationSet</a> {</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="comment">// The role for this AdaptationSet. These values are used to add a Role</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="comment">// element to the AdaptationSet with schemeIdUri=urn:mpeg:dash:role:2011.</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="comment">// See ISO/IEC 23009-1:2012 section 5.8.5.5.</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">enum</span> Role {</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  kRoleCaption,</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  kRoleSubtitle,</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  kRoleMain,</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  kRoleAlternate,</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  kRoleSupplementary,</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  kRoleCommentary,</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  kRoleDub</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  };</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">virtual</span> ~<a class="code" href="../../d8/d8e/classshaka_1_1AdaptationSet.html">AdaptationSet</a>();</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">virtual</span> <a class="code" href="../../de/d52/classshaka_1_1Representation.html">Representation</a>* AddRepresentation(<span class="keyword">const</span> MediaInfo& media_info);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">virtual</span> <a class="code" href="../../de/d52/classshaka_1_1Representation.html">Representation</a>* CopyRepresentation(</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</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="l00071"></a><span class="lineno"> 71</span> </div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> AddContentProtectionElement(</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keyword">const</span> <a class="code" href="../../da/d43/structshaka_1_1ContentProtectionElement.html">ContentProtectionElement</a>& element);</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> UpdateContentProtectionPssh(<span class="keyword">const</span> std::string& drm_uuid,</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keyword">const</span> std::string& pssh);</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> AddRole(Role role);</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  xml::scoped_xml_ptr<xmlNode> GetXml();</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> ForceSetSegmentAlignment(<span class="keywordtype">bool</span> segment_alignment);</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> AddAdaptationSetSwitching(<span class="keyword">const</span> <a class="code" href="../../d8/d8e/classshaka_1_1AdaptationSet.html">AdaptationSet</a>* adaptation_set);</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div><div class="line"><a name="l00122"></a><span class="lineno"><a class="line" href="../../d8/d8e/classshaka_1_1AdaptationSet.html#a4c4f483919b62a28c3a9061b3384f68b"> 122</a></span>  <span class="keywordtype">bool</span> <a class="code" href="../../d8/d8e/classshaka_1_1AdaptationSet.html#a4c4f483919b62a28c3a9061b3384f68b">has_id</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <span class="keyword">static_cast<</span><span class="keywordtype">bool</span><span class="keyword">></span>(id_); }</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="comment">// Must be unique in the Period.</span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  uint32_t id()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> id_.value(); }</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div><div class="line"><a name="l00129"></a><span class="lineno"><a class="line" href="../../d8/d8e/classshaka_1_1AdaptationSet.html#af4172e846f376783c39fe48230aefa8a"> 129</a></span>  <span class="keywordtype">void</span> <a class="code" href="../../d8/d8e/classshaka_1_1AdaptationSet.html#af4172e846f376783c39fe48230aefa8a">set_id</a>(uint32_t <span class="keywordtype">id</span>) { id_ = id; }</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordtype">void</span> OnNewSegmentForRepresentation(uint32_t representation_id,</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  uint64_t start_time,</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  uint64_t duration);</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordtype">void</span> OnSetFrameRateForRepresentation(uint32_t representation_id,</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  uint32_t frame_duration,</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  uint32_t timescale);</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> AddTrickPlayReference(<span class="keyword">const</span> <a class="code" href="../../d8/d8e/classshaka_1_1AdaptationSet.html">AdaptationSet</a>* adaptation_set);</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>  <span class="comment">// Return the list of Representations in this AdaptationSet.</span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">const</span> std::list<Representation*> GetRepresentations() <span class="keyword">const</span>;</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordtype">bool</span> IsVideo() <span class="keyword">const</span>;</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <a class="code" href="../../d8/d8e/classshaka_1_1AdaptationSet.html">AdaptationSet</a>(<span class="keyword">const</span> std::string& language,</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</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="l00181"></a><span class="lineno"> 181</span>  base::AtomicSequenceNumber* representation_counter);</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <a class="code" href="../../d8/d8e/classshaka_1_1AdaptationSet.html">AdaptationSet</a>(<span class="keyword">const</span> <a class="code" href="../../d8/d8e/classshaka_1_1AdaptationSet.html">AdaptationSet</a>&) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <a class="code" href="../../d8/d8e/classshaka_1_1AdaptationSet.html">AdaptationSet</a>& operator=(<span class="keyword">const</span> <a class="code" href="../../d8/d8e/classshaka_1_1AdaptationSet.html">AdaptationSet</a>&) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="../../d8/de1/classshaka_1_1Period.html">Period</a>;</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keyword">friend</span> <span class="keyword">class </span>AdaptationSetTest;</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="comment">// kSegmentAlignmentUnknown means that it is uncertain if the</span></div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="comment">// (sub)segments are aligned or not.</span></div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="comment">// kSegmentAlignmentTrue means that it is certain that the all the (current)</span></div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="comment">// segments added to the adaptation set are aligned.</span></div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="comment">// kSegmentAlignmentFalse means that it is it is certain that some segments</span></div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="comment">// are not aligned. This is useful to disable the computation for</span></div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="comment">// segment alignment, once it is certain that some segments are not aligned.</span></div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keyword">enum</span> SegmentAligmentStatus {</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  kSegmentAlignmentUnknown,</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  kSegmentAlignmentTrue,</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  kSegmentAlignmentFalse</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  };</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> </div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="comment">// This maps Representations (IDs) to a list of start times of the segments.</span></div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="comment">// e.g.</span></div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="comment">// If Representation 1 has start time 0, 100, 200 and Representation 2 has</span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="comment">// start times 0, 200, 400, then the map contains:</span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="comment">// 1 -> [0, 100, 200]</span></div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="comment">// 2 -> [0, 200, 400]</span></div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keyword">typedef</span> std::map<uint32_t, std::list<uint64_t>> RepresentationTimeline;</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>  <span class="comment">// Update AdaptationSet attributes for new MediaInfo.</span></div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordtype">void</span> UpdateFromMediaInfo(<span class="keyword">const</span> MediaInfo& media_info);</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> </div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordtype">void</span> CheckLiveSegmentAlignment(uint32_t representation_id,</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  uint64_t start_time,</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  uint64_t duration);</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="comment">// Checks representation_segment_start_times_ and sets segments_aligned_.</span></div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="comment">// Use this for VOD, do not use for Live.</span></div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordtype">void</span> CheckVodSegmentAlignment();</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span> </div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="comment">// Records the framerate of a Representation.</span></div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordtype">void</span> RecordFrameRate(uint32_t frame_duration, uint32_t timescale);</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>  std::list<ContentProtectionElement> content_protection_elements_;</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="comment">// representation_id => Representation map. It also keeps the representations_</span></div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="comment">// sorted by default.</span></div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  std::map<uint32_t, std::unique_ptr<Representation>> representation_map_;</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>  base::AtomicSequenceNumber* <span class="keyword">const</span> representation_counter_;</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  base::Optional<uint32_t> id_;</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keyword">const</span> std::string language_;</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</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="l00242"></a><span class="lineno"> 242</span> </div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="comment">// An array of adaptation sets this adaptation set can switch to.</span></div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  std::vector<const AdaptationSet*> switchable_adaptation_sets_;</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span> </div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="comment">// Video widths and heights of Representations. Note that this is a set; if</span></div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="comment">// there is only 1 resolution, then @width & @height should be set, otherwise</span></div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="comment">// @maxWidth & @maxHeight should be set for DASH IOP.</span></div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  std::set<uint32_t> video_widths_;</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  std::set<uint32_t> video_heights_;</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> </div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="comment">// Video representations' frame rates.</span></div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="comment">// The frame rate notation for MPD is <integer>/<integer> (where the</span></div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="comment">// denominator is optional). This means the frame rate could be non-whole</span></div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="comment">// rational value, therefore the key is of type double.</span></div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="comment">// Value is <integer>/<integer> in string form.</span></div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="comment">// So, key == CalculatedValue(value)</span></div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  std::map<double, std::string> video_frame_rates_;</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span> </div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="comment">// contentType attribute of AdaptationSet.</span></div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="comment">// Determined by examining the MediaInfo passed to AddRepresentation().</span></div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  std::string content_type_;</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> </div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="comment">// This does not have to be a set, it could be a list or vector because all we</span></div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="comment">// really care is whether there is more than one entry.</span></div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="comment">// Contains one entry if all the Representations have the same picture aspect</span></div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="comment">// ratio (@par attribute for AdaptationSet).</span></div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="comment">// There will be more than one entry if there are multiple picture aspect</span></div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="comment">// ratios.</span></div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="comment">// The @par attribute should only be set if there is exactly one entry</span></div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="comment">// in this set.</span></div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  std::set<std::string> picture_aspect_ratio_;</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span> </div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="comment">// The roles of this AdaptationSet.</span></div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  std::set<Role> roles_;</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span> </div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="comment">// True iff all the segments are aligned.</span></div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  SegmentAligmentStatus segments_aligned_;</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keywordtype">bool</span> force_set_segment_alignment_;</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>  <span class="comment">// Keeps track of segment start times of Representations.</span></div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="comment">// For VOD, this will not be cleared, all the segment start times are</span></div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="comment">// stored in this. This should not out-of-memory for a reasonable length</span></div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="comment">// video and reasonable subsegment length.</span></div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="comment">// For Live, the entries are deleted (see CheckLiveSegmentAlignment()</span></div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="comment">// implementation comment) because storing the entire timeline is not</span></div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="comment">// reasonable and may cause an out-of-memory problem.</span></div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  RepresentationTimeline representation_segment_start_times_;</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span> </div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="comment">// Record the original AdaptationSets the trick play stream belongs to. There</span></div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="comment">// can be more than one reference AdaptationSets as multiple streams e.g. SD</span></div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="comment">// and HD videos in different AdaptationSets can share the same trick play</span></div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="comment">// stream.</span></div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  std::vector<const AdaptationSet*> trick_play_references_;</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span> };</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span> </div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span> } <span class="comment">// namespace shaka</span></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="preprocessor">#endif // PACKAGER_MPD_BASE_ADAPTATION_SET_H_</span></div><div class="ttc" id="classshaka_1_1AdaptationSet_html_a4c4f483919b62a28c3a9061b3384f68b"><div class="ttname"><a href="../../d8/d8e/classshaka_1_1AdaptationSet.html#a4c4f483919b62a28c3a9061b3384f68b">shaka::AdaptationSet::has_id</a></div><div class="ttdeci">bool has_id() const</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d72/adaptation__set_8h_source.html#l00122">adaptation_set.h:122</a></div></div>
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<div class="ttc" id="classshaka_1_1AdaptationSet_html"><div class="ttname"><a href="../../d8/d8e/classshaka_1_1AdaptationSet.html">shaka::AdaptationSet</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d72/adaptation__set_8h_source.html#l00038">adaptation_set.h:38</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="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_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="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_1AdaptationSet_html_af4172e846f376783c39fe48230aefa8a"><div class="ttname"><a href="../../d8/d8e/classshaka_1_1AdaptationSet.html#af4172e846f376783c39fe48230aefa8a">shaka::AdaptationSet::set_id</a></div><div class="ttdeci">void set_id(uint32_t id)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d72/adaptation__set_8h_source.html#l00129">adaptation_set.h:129</a></div></div>
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<div class="ttc" id="classshaka_1_1Period_html"><div class="ttname"><a href="../../d8/de1/classshaka_1_1Period.html">shaka::Period</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d20/period_8h_source.html#l00031">period.h:31</a></div></div>
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