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<td >Qt 5.9</td><td ><a href="qtmultimedia-index.html">Qt Multimedia</a></td><td >QMultimedia Namespace</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#types">Types</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QMultimedia Namespace</h1>
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<p>The <a href="qmultimedia.html">QMultimedia</a> namespace contains miscellaneous identifiers used throughout the Qt Multimedia library. <a href="#details">More...</a></p>
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<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QMultimedia></span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += multimedia</td></tr></table></div><ul>
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<h2 id="types">Types</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qmultimedia.html#AvailabilityStatus-enum">AvailabilityStatus</a></b> { Available, ServiceMissing, ResourceError, Busy }</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qmultimedia.html#EncodingMode-enum">EncodingMode</a></b> { ConstantQualityEncoding, ConstantBitRateEncoding, AverageBitRateEncoding, TwoPassEncoding }</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qmultimedia.html#EncodingQuality-enum">EncodingQuality</a></b> { VeryLowQuality, LowQuality, NormalQuality, HighQuality, VeryHighQuality }</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qmultimedia.html#SupportEstimate-enum">SupportEstimate</a></b> { NotSupported, MaybeSupported, ProbablySupported, PreferredService }</td></tr>
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<h2 id="details">Detailed Description</h2>
<p>The <a href="qmultimedia.html">QMultimedia</a> namespace contains miscellaneous identifiers used throughout the Qt Multimedia library.</p>
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<h2>Type Documentation</h2>
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<h3 class="fn" id="AvailabilityStatus-enum"><a name="AvailabilityStatus-enum"></a>enum QMultimedia::<span class="name">AvailabilityStatus</span></h3>
<p>Enumerates Service status errors.</p>
<div class="table"><table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tblval">Value</th><th class="tbldscr">Description</th></tr>
<tr><td class="topAlign"><code>QMultimedia::Available</code></td><td class="topAlign tblval"><code>0</code></td><td class="topAlign">The service is operating correctly.</td></tr>
<tr><td class="topAlign"><code>QMultimedia::ServiceMissing</code></td><td class="topAlign tblval"><code>1</code></td><td class="topAlign">There is no service available to provide the requested functionality.</td></tr>
<tr><td class="topAlign"><code>QMultimedia::ResourceError</code></td><td class="topAlign tblval"><code>3</code></td><td class="topAlign">The service could not allocate resources required to function correctly.</td></tr>
<tr><td class="topAlign"><code>QMultimedia::Busy</code></td><td class="topAlign tblval"><code>2</code></td><td class="topAlign">The service must wait for access to necessary resources.</td></tr>
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<h3 class="fn" id="EncodingMode-enum"><a name="EncodingMode-enum"></a>enum QMultimedia::<span class="name">EncodingMode</span></h3>
<p>Enumerates encoding modes.</p>
<div class="table"><table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tblval">Value</th><th class="tbldscr">Description</th></tr>
<tr><td class="topAlign"><code>QMultimedia::ConstantQualityEncoding</code></td><td class="topAlign tblval"><code>0</code></td><td class="topAlign">Encoding will aim to have a constant quality, adjusting bitrate to fit.</td></tr>
<tr><td class="topAlign"><code>QMultimedia::ConstantBitRateEncoding</code></td><td class="topAlign tblval"><code>1</code></td><td class="topAlign">Encoding will use a constant bit rate, adjust quality to fit.</td></tr>
<tr><td class="topAlign"><code>QMultimedia::AverageBitRateEncoding</code></td><td class="topAlign tblval"><code>2</code></td><td class="topAlign">Encoding will try to keep an average bitrate setting, but will use more or less as needed.</td></tr>
<tr><td class="topAlign"><code>QMultimedia::TwoPassEncoding</code></td><td class="topAlign tblval"><code>3</code></td><td class="topAlign">The media will first be processed to determine the characteristics, and then processed a second time allocating more bits to the areas that need it.</td></tr>
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<h3 class="fn" id="EncodingQuality-enum"><a name="EncodingQuality-enum"></a>enum QMultimedia::<span class="name">EncodingQuality</span></h3>
<p>Enumerates quality encoding levels.</p>
<div class="table"><table class="valuelist"><tr><th class="tblConst">Constant</th><th class="tblVal">Value</th></tr>
<tr><td class="topAlign"><code>QMultimedia::VeryLowQuality</code></td><td class="topAlign tblval"><code>0</code></td></tr>
<tr><td class="topAlign"><code>QMultimedia::LowQuality</code></td><td class="topAlign tblval"><code>1</code></td></tr>
<tr><td class="topAlign"><code>QMultimedia::NormalQuality</code></td><td class="topAlign tblval"><code>2</code></td></tr>
<tr><td class="topAlign"><code>QMultimedia::HighQuality</code></td><td class="topAlign tblval"><code>3</code></td></tr>
<tr><td class="topAlign"><code>QMultimedia::VeryHighQuality</code></td><td class="topAlign tblval"><code>4</code></td></tr>
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<h3 class="fn" id="SupportEstimate-enum"><a name="SupportEstimate-enum"></a>enum QMultimedia::<span class="name">SupportEstimate</span></h3>
<p>Enumerates the levels of support a media service provider may have for a feature.</p>
<div class="table"><table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tblval">Value</th><th class="tbldscr">Description</th></tr>
<tr><td class="topAlign"><code>QMultimedia::NotSupported</code></td><td class="topAlign tblval"><code>0</code></td><td class="topAlign">The feature is not supported.</td></tr>
<tr><td class="topAlign"><code>QMultimedia::MaybeSupported</code></td><td class="topAlign tblval"><code>1</code></td><td class="topAlign">The feature may be supported.</td></tr>
<tr><td class="topAlign"><code>QMultimedia::ProbablySupported</code></td><td class="topAlign tblval"><code>2</code></td><td class="topAlign">The feature is probably supported.</td></tr>
<tr><td class="topAlign"><code>QMultimedia::PreferredService</code></td><td class="topAlign tblval"><code>3</code></td><td class="topAlign">The service is the preferred provider of a service.</td></tr>
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