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<li class="navelem"><a class="el" href="../../d8/daf/namespaceshaka.html">shaka</a></li><li class="navelem"><a class="el" href="../../de/d52/classshaka_1_1Representation.html">Representation</a></li> </ul>
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<div class="title">shaka::Representation Class Reference</div> </div>
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<p><code>#include &lt;<a class="el" href="../../d6/da3/mpd__builder_8h_source.html">mpd_builder.h</a>&gt;</code></p>
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Inheritance diagram for shaka::Representation:</div>
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<img src="../../de/d52/classshaka_1_1Representation.png" usemap="#shaka::Representation_map" alt=""/>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:ad0c3f0dfed3c9b1cf4993530ea652661"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><b>SuppressFlag</b> { <b>kSuppressWidth</b> = 1,
<b>kSuppressHeight</b> = 2,
<b>kSuppressFrameRate</b> = 4
}</td></tr>
<tr class="separator:ad0c3f0dfed3c9b1cf4993530ea652661"><td class="memSeparator" colspan="2">&#160;</td></tr>
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Public Member Functions</h2></td></tr>
<tr class="memitem:ae998409ae94f3ba12909a96e8f3f4f7e"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d52/classshaka_1_1Representation.html#ae998409ae94f3ba12909a96e8f3f4f7e">Init</a> ()</td></tr>
<tr class="separator:ae998409ae94f3ba12909a96e8f3f4f7e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a265d014093c9073b08505013886aaa8d"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d52/classshaka_1_1Representation.html#a265d014093c9073b08505013886aaa8d">AddContentProtectionElement</a> (const <a class="el" href="../../da/d43/structshaka_1_1ContentProtectionElement.html">ContentProtectionElement</a> &amp;element)</td></tr>
<tr class="separator:a265d014093c9073b08505013886aaa8d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3d17325903aa01f0c8ff7753d94ff330"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d52/classshaka_1_1Representation.html#a3d17325903aa01f0c8ff7753d94ff330">UpdateContentProtectionPssh</a> (const std::string &amp;drm_uuid, const std::string &amp;pssh)</td></tr>
<tr class="separator:a3d17325903aa01f0c8ff7753d94ff330"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aad95da6fec382d9b88ac45ba397529f0"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aad95da6fec382d9b88ac45ba397529f0"></a>
class&#160;</td><td class="memItemRight" valign="bottom"><b>AdaptationSet</b></td></tr>
<tr class="separator:aad95da6fec382d9b88ac45ba397529f0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aaf5a82dfc14ef4a006fa98befdbb4ce3"><td class="memTemplParams" colspan="2"><a class="anchor" id="aaf5a82dfc14ef4a006fa98befdbb4ce3"></a>
template&lt;DashProfile profile&gt; </td></tr>
<tr class="memitem:aaf5a82dfc14ef4a006fa98befdbb4ce3"><td class="memTemplItemLeft" align="right" valign="top">class&#160;</td><td class="memTemplItemRight" valign="bottom"><b>MpdBuilderTest</b></td></tr>
<tr class="separator:aaf5a82dfc14ef4a006fa98befdbb4ce3"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6ca8bbfd34ef8ca782d2ef18aeaad932"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d52/classshaka_1_1Representation.html#a6ca8bbfd34ef8ca782d2ef18aeaad932">AddNewSegment</a> (uint64_t start_time, uint64_t duration, uint64_t size)</td></tr>
<tr class="separator:a6ca8bbfd34ef8ca782d2ef18aeaad932"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a11b32833166b9c4bea78cca2c6069d98"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d52/classshaka_1_1Representation.html#a11b32833166b9c4bea78cca2c6069d98">SetSampleDuration</a> (uint32_t sample_duration)</td></tr>
<tr class="separator:a11b32833166b9c4bea78cca2c6069d98"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a606afa5df6a90f49faad0ce427b7e960"><td class="memItemLeft" align="right" valign="top">xml::scoped_xml_ptr&lt; xmlNode &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d52/classshaka_1_1Representation.html#a606afa5df6a90f49faad0ce427b7e960">GetXml</a> ()</td></tr>
<tr class="separator:a606afa5df6a90f49faad0ce427b7e960"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a473e45dbbf64e6ab6ed670ccedac84ed"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d52/classshaka_1_1Representation.html#a473e45dbbf64e6ab6ed670ccedac84ed">SuppressOnce</a> (SuppressFlag flag)</td></tr>
<tr class="separator:a473e45dbbf64e6ab6ed670ccedac84ed"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6a3ba385179698e57a1451d1a26ad827"><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d52/classshaka_1_1Representation.html#a6a3ba385179698e57a1451d1a26ad827">id</a> () const </td></tr>
<tr class="separator:a6a3ba385179698e57a1451d1a26ad827"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a997138fcaa5deef5151a64a2d7ce6aeb"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d52/classshaka_1_1Representation.html#a997138fcaa5deef5151a64a2d7ce6aeb">Representation</a> (const MediaInfo &amp;media_info, const <a class="el" href="../../d1/df3/structshaka_1_1MpdOptions.html">MpdOptions</a> &amp;mpd_options, uint32_t representation_id, std::unique_ptr&lt; <a class="el" href="../../df/d94/classshaka_1_1RepresentationStateChangeListener.html">RepresentationStateChangeListener</a> &gt; state_change_listener)</td></tr>
<tr class="separator:a997138fcaa5deef5151a64a2d7ce6aeb"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p><a class="el" href="../../de/d52/classshaka_1_1Representation.html">Representation</a> class contains references to a single media stream, as well as optional ContentProtection elements for that stream. </p>
<p>Definition at line <a class="el" href="../../d6/da3/mpd__builder_8h_source.html#l00411">411</a> of file <a class="el" href="../../d6/da3/mpd__builder_8h_source.html">mpd_builder.h</a>.</p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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<td class="memname">shaka::Representation::Representation </td>
<td>(</td>
<td class="paramtype">const MediaInfo &amp;&#160;</td>
<td class="paramname"><em>media_info</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="../../d1/df3/structshaka_1_1MpdOptions.html">MpdOptions</a> &amp;&#160;</td>
<td class="paramname"><em>mpd_options</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t&#160;</td>
<td class="paramname"><em>representation_id</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::unique_ptr&lt; <a class="el" href="../../df/d94/classshaka_1_1RepresentationStateChangeListener.html">RepresentationStateChangeListener</a> &gt;&#160;</td>
<td class="paramname"><em>state_change_listener</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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</td>
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<span class="mlabels"><span class="mlabel">protected</span></span> </td>
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<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">media_info</td><td>is a MediaInfo containing information on the media. <em>media_info.bandwidth</em> is required for 'static' profile. If <em>media_info.bandwidth</em> is not present in 'dynamic' profile, this tries to estimate it using the info passed to <a class="el" href="../../de/d52/classshaka_1_1Representation.html#a6ca8bbfd34ef8ca782d2ef18aeaad932">AddNewSegment()</a>. </td></tr>
<tr><td class="paramname">mpd_options</td><td>is options for the entire MPD. </td></tr>
<tr><td class="paramname">representation_id</td><td>is the numeric ID for the &lt;Representation&gt;. </td></tr>
<tr><td class="paramname">state_change_listener</td><td>is an event handler for state changes to the representation. If null, no event handler registered. </td></tr>
</table>
</dd>
</dl>
<p>Definition at line <a class="el" href="../../dd/d11/mpd__builder_8cc_source.html#l01028">1028</a> of file <a class="el" href="../../dd/d11/mpd__builder_8cc_source.html">mpd_builder.cc</a>.</p>
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</div>
<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">void shaka::Representation::AddContentProtectionElement </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="../../da/d43/structshaka_1_1ContentProtectionElement.html">ContentProtectionElement</a> &amp;&#160;</td>
<td class="paramname"><em>element</em></td><td>)</td>
<td></td>
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<span class="mlabels"><span class="mlabel">virtual</span></span> </td>
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<p>Add a ContenProtection element to the representation. <a class="el" href="../../de/d52/classshaka_1_1Representation.html">Representation</a> does not add &lt;ContentProtection&gt; elements automatically to itself even if <em>media_info</em> passed to <a class="el" href="../../d8/d8e/classshaka_1_1AdaptationSet.html#a124e3c1ba5e3209f3214a556ecae28c3">AdaptationSet::AddRepresentation()</a> has <em>media_info.protected_content</em> populated. This is because some MPDs should have the elements at <a class="el" href="../../d8/d8e/classshaka_1_1AdaptationSet.html">AdaptationSet</a> level and some at <a class="el" href="../../de/d52/classshaka_1_1Representation.html">Representation</a> level. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">element</td><td>contains the ContentProtection element contents. If <em>element</em> has {value, schemeIdUri} set and has {“value”, “schemeIdUri”} as key for <em>additional_attributes</em>, then the former is used. </td></tr>
</table>
</dd>
</dl>
<p>Definition at line <a class="el" href="../../dd/d11/mpd__builder_8cc_source.html#l01085">1085</a> of file <a class="el" href="../../dd/d11/mpd__builder_8cc_source.html">mpd_builder.cc</a>.</p>
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<td class="memname">void shaka::Representation::AddNewSegment </td>
<td>(</td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>start_time</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>duration</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>size</em>&#160;</td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td>
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<p>Add a media (sub)segment to the representation. AdaptationSetsubsegmentAlignment,segmentAlignment} cannot be set if this is not called for all Representations. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">start_time</td><td>is the start time for the (sub)segment, in units of the stream's time scale. </td></tr>
<tr><td class="paramname">duration</td><td>is the duration of the segment, in units of the stream's time scale. </td></tr>
<tr><td class="paramname">size</td><td>of the segment in bytes. </td></tr>
</table>
</dd>
</dl>
<p>Definition at line <a class="el" href="../../dd/d11/mpd__builder_8cc_source.html#l01097">1097</a> of file <a class="el" href="../../dd/d11/mpd__builder_8cc_source.html">mpd_builder.cc</a>.</p>
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<td class="memname">xml::scoped_xml_ptr&lt; xmlNode &gt; shaka::Representation::GetXml </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
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</div><div class="memdoc">
<dl class="section return"><dt>Returns</dt><dd>Copy of &lt;Representation&gt;. </dd></dl>
<p>Definition at line <a class="el" href="../../dd/d11/mpd__builder_8cc_source.html#l01137">1137</a> of file <a class="el" href="../../dd/d11/mpd__builder_8cc_source.html">mpd_builder.cc</a>.</p>
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<td class="memname">uint32_t shaka::Representation::id </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<span class="mlabels"><span class="mlabel">inline</span></span> </td>
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<dl class="section return"><dt>Returns</dt><dd>ID number for &lt;Representation&gt;. </dd></dl>
<p>Definition at line <a class="el" href="../../d6/da3/mpd__builder_8h_source.html#l00486">486</a> of file <a class="el" href="../../d6/da3/mpd__builder_8h_source.html">mpd_builder.h</a>.</p>
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<td class="memname">bool shaka::Representation::Init </td>
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<p>Tries to initialize the instance. If this does not succeed, the instance should not be used. </p>
<dl class="section return"><dt>Returns</dt><dd>true on success, false otherwise. </dd></dl>
<p>Definition at line <a class="el" href="../../dd/d11/mpd__builder_8cc_source.html#l01043">1043</a> of file <a class="el" href="../../dd/d11/mpd__builder_8cc_source.html">mpd_builder.cc</a>.</p>
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<td class="memname">void shaka::Representation::SetSampleDuration </td>
<td>(</td>
<td class="paramtype">uint32_t&#160;</td>
<td class="paramname"><em>sample_duration</em></td><td>)</td>
<td></td>
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<p>Set the sample duration of this <a class="el" href="../../de/d52/classshaka_1_1Representation.html">Representation</a>. Sample duration is not available right away especially for live. This allows setting the sample duration after the <a class="el" href="../../de/d52/classshaka_1_1Representation.html">Representation</a> has been initialized. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">sample_duration</td><td>is the duration of a sample. </td></tr>
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<p>Definition at line <a class="el" href="../../dd/d11/mpd__builder_8cc_source.html#l01121">1121</a> of file <a class="el" href="../../dd/d11/mpd__builder_8cc_source.html">mpd_builder.cc</a>.</p>
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<td class="memname">void shaka::Representation::SuppressOnce </td>
<td>(</td>
<td class="paramtype">SuppressFlag&#160;</td>
<td class="paramname"><em>flag</em></td><td>)</td>
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<p>By calling this methods, the next time <a class="el" href="../../de/d52/classshaka_1_1Representation.html#a606afa5df6a90f49faad0ce427b7e960">GetXml()</a> is called, the corresponding attributes will not be set. For example, if SuppressOnce(kSuppressWidth) is called, then <a class="el" href="../../de/d52/classshaka_1_1Representation.html#a606afa5df6a90f49faad0ce427b7e960">GetXml()</a> will return a &lt;Representation&gt; element without a attribute. Note that it only applies to the next call to <a class="el" href="../../de/d52/classshaka_1_1Representation.html#a606afa5df6a90f49faad0ce427b7e960">GetXml()</a>, calling <a class="el" href="../../de/d52/classshaka_1_1Representation.html#a606afa5df6a90f49faad0ce427b7e960">GetXml()</a> again without calling this methods will return a &lt;Representation&gt; element with the attribute. This may be called multiple times to set different (or the same) flags. </p>
<p>Definition at line <a class="el" href="../../dd/d11/mpd__builder_8cc_source.html#l01209">1209</a> of file <a class="el" href="../../dd/d11/mpd__builder_8cc_source.html">mpd_builder.cc</a>.</p>
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<td class="memname">void shaka::Representation::UpdateContentProtectionPssh </td>
<td>(</td>
<td class="paramtype">const std::string &amp;&#160;</td>
<td class="paramname"><em>drm_uuid</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const std::string &amp;&#160;</td>
<td class="paramname"><em>pssh</em>&#160;</td>
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<td>)</td>
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<p>Update the 'cenc:pssh' element for <em>drm_uuid</em> ContentProtection element. If the element does not exist, this will add one. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">drm_uuid</td><td>is the UUID of the DRM for encryption. </td></tr>
<tr><td class="paramname">pssh</td><td>is the content of &lt;cenc:pssh&gt; element. Note that DASH IF IOP mentions that this should be base64 encoded string of the whole pssh box. </td></tr>
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<dl class="section attention"><dt>Attention</dt><dd>This might get removed once DASH IF IOP specification makes a a clear guideline on how to handle key rotation. Also to get this working with shaka-player, this method <em>DOES NOT</em> update the PSSH element. Instead, it removes the element regardless of the content of <em>pssh</em>. </dd></dl>
<p>Definition at line <a class="el" href="../../dd/d11/mpd__builder_8cc_source.html#l01091">1091</a> of file <a class="el" href="../../dd/d11/mpd__builder_8cc_source.html">mpd_builder.cc</a>.</p>
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<hr/>The documentation for this class was generated from the following files:<ul>
<li>mpd/base/<a class="el" href="../../d6/da3/mpd__builder_8h_source.html">mpd_builder.h</a></li>
<li>mpd/base/<a class="el" href="../../dd/d11/mpd__builder_8cc_source.html">mpd_builder.cc</a></li>
</ul>
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