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<?xml version="1.0" encoding="UTF-8"?>
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  <title>QMediaResource Class | QtMultimedia 5.2</title>
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<li>Qt 5.2</li>
<li><a href="qtmultimedia-index.html">Qt Multimedia</a></li>
<li><a href="qtmultimedia-module.html">C++ Classes</a></li>
<li>QMediaResource</li>
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Qt 5.2.1 Reference Documentation</li>
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<div class="content">
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<h3><a name="toc">Contents</a></h3>
<ul>
<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#related-non-members">Related Non-Members</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
</ul>
</div>
<h1 class="title">QMediaResource Class</h1>
<!-- $$$QMediaResource-brief -->
<p>The QMediaResource class provides a description of a media resource. <a href="#details">More...</a></p>
<!-- @@@QMediaResource -->
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> </b><tt><span class="preprocessor">#include &lt;QMediaResource&gt;</span>
</tt></td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> <tt>QT += multimedia</tt></td></tr></table><ul>
<li><a href="qmediaresource-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="public-functions"></a>
<h2>Public Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#QMediaResource">QMediaResource</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#QMediaResource-2">QMediaResource</a></b>(const QUrl &amp;<i> url</i>, const QString &amp;<i> mimeType</i> = QString())</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#QMediaResource-3">QMediaResource</a></b>(const QNetworkRequest &amp;<i> request</i>, const QString &amp;<i> mimeType</i> = QString())</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#QMediaResource-4">QMediaResource</a></b>(const QMediaResource &amp;<i> other</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#dtor.QMediaResource">~QMediaResource</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#audioBitRate">audioBitRate</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QString </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#audioCodec">audioCodec</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#channelCount">channelCount</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> qint64 </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#dataSize">dataSize</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#isNull">isNull</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QString </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#language">language</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QString </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#mimeType">mimeType</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QNetworkRequest </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#request">request</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QSize </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#resolution">resolution</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#sampleRate">sampleRate</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#setAudioBitRate">setAudioBitRate</a></b>(int<i> rate</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#setAudioCodec">setAudioCodec</a></b>(const QString &amp;<i> codec</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#setChannelCount">setChannelCount</a></b>(int<i> channels</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#setDataSize">setDataSize</a></b>(const qint64<i> size</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#setLanguage">setLanguage</a></b>(const QString &amp;<i> language</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#setResolution">setResolution</a></b>(const QSize &amp;<i> resolution</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#setResolution-2">setResolution</a></b>(int<i> width</i>, int<i> height</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#setSampleRate">setSampleRate</a></b>(int<i> sampleRate</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#setVideoBitRate">setVideoBitRate</a></b>(int<i> rate</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#setVideoCodec">setVideoCodec</a></b>(const QString &amp;<i> codec</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QUrl </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#url">url</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#videoBitRate">videoBitRate</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QString </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#videoCodec">videoCodec</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#operator-not-eq">operator!=</a></b>(const QMediaResource &amp;<i> other</i>) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QMediaResource &amp; </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#operator-eq">operator=</a></b>(const QMediaResource &amp;<i> other</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#operator-eq-eq">operator==</a></b>(const QMediaResource &amp;<i> other</i>) const</td></tr>
</table>
<a name="related-non-members"></a>
<h2>Related Non-Members</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> typedef </td><td class="memItemRight bottomAlign"><b><a href="qmediaresource.html#QMediaResourceList-typedef">QMediaResourceList</a></b></td></tr>
</table>
<a name="details"></a>
<!-- $$$QMediaResource-description -->
<div class="descr">
<h2>Detailed Description</h2>
<p>The QMediaResource class provides a description of a media resource.</p>
<p>A media resource is composed of a <a href="qmediaresource.html#url">URL</a> containing the location of the resource and a set of properties that describe the format of the resource. The properties provide a means to assess a resource without first attempting to load it, and in situations where media be represented by multiple alternative representations provide a means to select the appropriate resource.</p>
<p>Media made available by a remote services can often be available in multiple encodings or quality levels, this allows a client to select an appropriate resource based on considerations such as codecs supported, network bandwidth, and display constraints. QMediaResource includes information such as the <a href="qmediaresource.html#mimeType">MIME type</a>, <a href="qmediaresource.html#audioCodec">audio</a> and <a href="qmediaresource.html#videoCodec">video</a> codecs, <a href="qmediaresource.html#audioBitRate">audio</a> and <a href="qmediaresource.html#videoBitRate">video</a> bit rates, and <a href="qmediaresource.html#resolution">resolution</a> so these constraints and others can be evaluated.</p>
<p>The only mandatory property of a QMediaResource is the <a href="qmediaresource.html#url">url</a>().</p>
</div>
<p><b>See also </b><a href="qmediacontent.html">QMediaContent</a>.</p>
<!-- @@@QMediaResource -->
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QMediaResource[overload1]$$$QMediaResource -->
<h3 class="fn"><a name="QMediaResource"></a>QMediaResource::<span class="name">QMediaResource</span>()</h3>
<p>Constructs a null media resource.</p>
<!-- @@@QMediaResource -->
<!-- $$$QMediaResource$$$QMediaResourceconstQUrl&constQString& -->
<h3 class="fn"><a name="QMediaResource-2"></a>QMediaResource::<span class="name">QMediaResource</span>(const <span class="type">QUrl</span> &amp;<i> url</i>, const <span class="type">QString</span> &amp;<i> mimeType</i> = QString())</h3>
<p>Constructs a media resource with the given <i>mimeType</i> from a <i>url</i>.</p>
<!-- @@@QMediaResource -->
<!-- $$$QMediaResource$$$QMediaResourceconstQNetworkRequest&constQString& -->
<h3 class="fn"><a name="QMediaResource-3"></a>QMediaResource::<span class="name">QMediaResource</span>(const <span class="type">QNetworkRequest</span> &amp;<i> request</i>, const <span class="type">QString</span> &amp;<i> mimeType</i> = QString())</h3>
<p>Constructs a media resource with the given <i>mimeType</i> from a network <i>request</i>.</p>
<!-- @@@QMediaResource -->
<!-- $$$QMediaResource$$$QMediaResourceconstQMediaResource& -->
<h3 class="fn"><a name="QMediaResource-4"></a>QMediaResource::<span class="name">QMediaResource</span>(const <span class="type">QMediaResource</span> &amp;<i> other</i>)</h3>
<p>Constructs a copy of a media resource <i>other</i>.</p>
<!-- @@@QMediaResource -->
<!-- $$$~QMediaResource[overload1]$$$~QMediaResource -->
<h3 class="fn"><a name="dtor.QMediaResource"></a>QMediaResource::<span class="name">~QMediaResource</span>()</h3>
<p>Destroys a media resource.</p>
<!-- @@@~QMediaResource -->
<!-- $$$audioBitRate[overload1]$$$audioBitRate -->
<h3 class="fn"><a name="audioBitRate"></a><span class="type">int</span> QMediaResource::<span class="name">audioBitRate</span>() const</h3>
<p>Returns the bit rate in bits per second of a media resource's audio stream.</p>
<p>This may be zero if the bit rate is unknown, or the resource contains no audio stream.</p>
<p><b>See also </b><a href="qmediaresource.html#setAudioBitRate">setAudioBitRate</a>().</p>
<!-- @@@audioBitRate -->
<!-- $$$audioCodec[overload1]$$$audioCodec -->
<h3 class="fn"><a name="audioCodec"></a><span class="type">QString</span> QMediaResource::<span class="name">audioCodec</span>() const</h3>
<p>Returns the audio codec of a media resource.</p>
<p>This may be null if the media resource does not contain an audio stream, or the codec is unknown.</p>
<p><b>See also </b><a href="qmediaresource.html#setAudioCodec">setAudioCodec</a>().</p>
<!-- @@@audioCodec -->
<!-- $$$channelCount[overload1]$$$channelCount -->
<h3 class="fn"><a name="channelCount"></a><span class="type">int</span> QMediaResource::<span class="name">channelCount</span>() const</h3>
<p>Returns the number of audio channels in a media resource.</p>
<p>This may be zero if the sample size is unknown, or the resource contains no audio stream.</p>
<p><b>See also </b><a href="qmediaresource.html#setChannelCount">setChannelCount</a>().</p>
<!-- @@@channelCount -->
<!-- $$$dataSize[overload1]$$$dataSize -->
<h3 class="fn"><a name="dataSize"></a><span class="type">qint64</span> QMediaResource::<span class="name">dataSize</span>() const</h3>
<p>Returns the size in bytes of a media resource.</p>
<p>This may be zero if the size is unknown.</p>
<p><b>See also </b><a href="qmediaresource.html#setDataSize">setDataSize</a>().</p>
<!-- @@@dataSize -->
<!-- $$$isNull[overload1]$$$isNull -->
<h3 class="fn"><a name="isNull"></a><span class="type">bool</span> QMediaResource::<span class="name">isNull</span>() const</h3>
<p>Identifies if a media resource is null.</p>
<p>Returns true if the resource is null, and false otherwise.</p>
<!-- @@@isNull -->
<!-- $$$language[overload1]$$$language -->
<h3 class="fn"><a name="language"></a><span class="type">QString</span> QMediaResource::<span class="name">language</span>() const</h3>
<p>Returns the language of a media resource as an ISO 639-2 code.</p>
<p>This may be null if the language is unknown.</p>
<p><b>See also </b><a href="qmediaresource.html#setLanguage">setLanguage</a>().</p>
<!-- @@@language -->
<!-- $$$mimeType[overload1]$$$mimeType -->
<h3 class="fn"><a name="mimeType"></a><span class="type">QString</span> QMediaResource::<span class="name">mimeType</span>() const</h3>
<p>Returns the MIME type of a media resource.</p>
<p>This may be null if the MIME type is unknown.</p>
<!-- @@@mimeType -->
<!-- $$$request[overload1]$$$request -->
<h3 class="fn"><a name="request"></a><span class="type">QNetworkRequest</span> QMediaResource::<span class="name">request</span>() const</h3>
<p>Returns the network request associated with this media resource.</p>
<!-- @@@request -->
<!-- $$$resolution[overload1]$$$resolution -->
<h3 class="fn"><a name="resolution"></a><span class="type">QSize</span> QMediaResource::<span class="name">resolution</span>() const</h3>
<p>Returns the resolution in pixels of a media resource.</p>
<p>This may be null is the resolution is unknown, or the resource contains no pixel data (i.e&#x2e; the resource is an audio stream.</p>
<p><b>See also </b><a href="qmediaresource.html#setResolution">setResolution</a>().</p>
<!-- @@@resolution -->
<!-- $$$sampleRate[overload1]$$$sampleRate -->
<h3 class="fn"><a name="sampleRate"></a><span class="type">int</span> QMediaResource::<span class="name">sampleRate</span>() const</h3>
<p>Returns the audio sample rate of a media resource.</p>
<p>This may be zero if the sample size is unknown, or the resource contains no audio stream.</p>
<p><b>See also </b><a href="qmediaresource.html#setSampleRate">setSampleRate</a>().</p>
<!-- @@@sampleRate -->
<!-- $$$setAudioBitRate[overload1]$$$setAudioBitRateint -->
<h3 class="fn"><a name="setAudioBitRate"></a><span class="type">void</span> QMediaResource::<span class="name">setAudioBitRate</span>(<span class="type">int</span><i> rate</i>)</h3>
<p>Sets the bit <i>rate</i> in bits per second of a media resource's video stream.</p>
<p><b>See also </b><a href="qmediaresource.html#audioBitRate">audioBitRate</a>().</p>
<!-- @@@setAudioBitRate -->
<!-- $$$setAudioCodec[overload1]$$$setAudioCodecconstQString& -->
<h3 class="fn"><a name="setAudioCodec"></a><span class="type">void</span> QMediaResource::<span class="name">setAudioCodec</span>(const <span class="type">QString</span> &amp;<i> codec</i>)</h3>
<p>Sets the audio <i>codec</i> of a media resource.</p>
<p><b>See also </b><a href="qmediaresource.html#audioCodec">audioCodec</a>().</p>
<!-- @@@setAudioCodec -->
<!-- $$$setChannelCount[overload1]$$$setChannelCountint -->
<h3 class="fn"><a name="setChannelCount"></a><span class="type">void</span> QMediaResource::<span class="name">setChannelCount</span>(<span class="type">int</span><i> channels</i>)</h3>
<p>Sets the number of audio <i>channels</i> in a media resource.</p>
<p><b>See also </b><a href="qmediaresource.html#channelCount">channelCount</a>().</p>
<!-- @@@setChannelCount -->
<!-- $$$setDataSize[overload1]$$$setDataSizeconstqint64 -->
<h3 class="fn"><a name="setDataSize"></a><span class="type">void</span> QMediaResource::<span class="name">setDataSize</span>(const <span class="type">qint64</span><i> size</i>)</h3>
<p>Sets the <i>size</i> in bytes of a media resource.</p>
<p><b>See also </b><a href="qmediaresource.html#dataSize">dataSize</a>().</p>
<!-- @@@setDataSize -->
<!-- $$$setLanguage[overload1]$$$setLanguageconstQString& -->
<h3 class="fn"><a name="setLanguage"></a><span class="type">void</span> QMediaResource::<span class="name">setLanguage</span>(const <span class="type">QString</span> &amp;<i> language</i>)</h3>
<p>Sets the <i>language</i> of a media resource.</p>
<p><b>See also </b><a href="qmediaresource.html#language">language</a>().</p>
<!-- @@@setLanguage -->
<!-- $$$setResolution[overload1]$$$setResolutionconstQSize& -->
<h3 class="fn"><a name="setResolution"></a><span class="type">void</span> QMediaResource::<span class="name">setResolution</span>(const <span class="type">QSize</span> &amp;<i> resolution</i>)</h3>
<p>Sets the <i>resolution</i> in pixels of a media resource.</p>
<p><b>See also </b><a href="qmediaresource.html#resolution">resolution</a>().</p>
<!-- @@@setResolution -->
<!-- $$$setResolution$$$setResolutionintint -->
<h3 class="fn"><a name="setResolution-2"></a><span class="type">void</span> QMediaResource::<span class="name">setResolution</span>(<span class="type">int</span><i> width</i>, <span class="type">int</span><i> height</i>)</h3>
<p>Sets the <i>width</i> and <i>height</i> in pixels of a media resource.</p>
<!-- @@@setResolution -->
<!-- $$$setSampleRate[overload1]$$$setSampleRateint -->
<h3 class="fn"><a name="setSampleRate"></a><span class="type">void</span> QMediaResource::<span class="name">setSampleRate</span>(<span class="type">int</span><i> sampleRate</i>)</h3>
<p>Sets the audio <i>sampleRate</i> of a media resource.</p>
<p><b>See also </b><a href="qmediaresource.html#sampleRate">sampleRate</a>().</p>
<!-- @@@setSampleRate -->
<!-- $$$setVideoBitRate[overload1]$$$setVideoBitRateint -->
<h3 class="fn"><a name="setVideoBitRate"></a><span class="type">void</span> QMediaResource::<span class="name">setVideoBitRate</span>(<span class="type">int</span><i> rate</i>)</h3>
<p>Sets the bit <i>rate</i> in bits per second of a media resource's video stream.</p>
<p><b>See also </b><a href="qmediaresource.html#videoBitRate">videoBitRate</a>().</p>
<!-- @@@setVideoBitRate -->
<!-- $$$setVideoCodec[overload1]$$$setVideoCodecconstQString& -->
<h3 class="fn"><a name="setVideoCodec"></a><span class="type">void</span> QMediaResource::<span class="name">setVideoCodec</span>(const <span class="type">QString</span> &amp;<i> codec</i>)</h3>
<p>Sets the video <i>codec</i> of media resource.</p>
<p><b>See also </b><a href="qmediaresource.html#videoCodec">videoCodec</a>().</p>
<!-- @@@setVideoCodec -->
<!-- $$$url[overload1]$$$url -->
<h3 class="fn"><a name="url"></a><span class="type">QUrl</span> QMediaResource::<span class="name">url</span>() const</h3>
<p>Returns the URL of a media resource.</p>
<!-- @@@url -->
<!-- $$$videoBitRate[overload1]$$$videoBitRate -->
<h3 class="fn"><a name="videoBitRate"></a><span class="type">int</span> QMediaResource::<span class="name">videoBitRate</span>() const</h3>
<p>Returns the bit rate in bits per second of a media resource's video stream.</p>
<p>This may be zero if the bit rate is unknown, or the resource contains no video stream.</p>
<p><b>See also </b><a href="qmediaresource.html#setVideoBitRate">setVideoBitRate</a>().</p>
<!-- @@@videoBitRate -->
<!-- $$$videoCodec[overload1]$$$videoCodec -->
<h3 class="fn"><a name="videoCodec"></a><span class="type">QString</span> QMediaResource::<span class="name">videoCodec</span>() const</h3>
<p>Returns the video codec of a media resource.</p>
<p>This may be null if the media resource does not contain a video stream, or the codec is unknonwn.</p>
<p><b>See also </b><a href="qmediaresource.html#setVideoCodec">setVideoCodec</a>().</p>
<!-- @@@videoCodec -->
<!-- $$$operator!=[overload1]$$$operator!=constQMediaResource& -->
<h3 class="fn"><a name="operator-not-eq"></a><span class="type">bool</span> QMediaResource::<span class="name">operator!=</span>(const <span class="type">QMediaResource</span> &amp;<i> other</i>) const</h3>
<p>Compares a media resource to <i>other</i>.</p>
<p>Returns true if they are different, and false otherwise.</p>
<!-- @@@operator!= -->
<!-- $$$operator=[overload1]$$$operator=constQMediaResource& -->
<h3 class="fn"><a name="operator-eq"></a><span class="type">QMediaResource</span> &amp; QMediaResource::<span class="name">operator=</span>(const <span class="type">QMediaResource</span> &amp;<i> other</i>)</h3>
<p>Assigns the value of <i>other</i> to a media resource.</p>
<!-- @@@operator= -->
<!-- $$$operator==[overload1]$$$operator==constQMediaResource& -->
<h3 class="fn"><a name="operator-eq-eq"></a><span class="type">bool</span> QMediaResource::<span class="name">operator==</span>(const <span class="type">QMediaResource</span> &amp;<i> other</i>) const</h3>
<p>Compares a media resource to <i>other</i>.</p>
<p>Returns true if the resources are identical, and false otherwise.</p>
<!-- @@@operator== -->
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<div class="relnonmem">
<h2>Related Non-Members</h2>
<!-- $$$QMediaResourceList -->
<h3 class="fn"><a name="QMediaResourceList-typedef"></a>typedef <span class="name">QMediaResourceList</span></h3>
<p>Synonym for <tt>QList&lt;QMediaResource&gt;</tt></p>
<!-- @@@QMediaResourceList -->
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