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<td >Qt 5.12</td><td ><a href="qtmultimedia-index.html">Qt Multimedia</a></td><td ><a href="qtmultimedia-modules.html">C++ Classes</a></td><td >QImageEncoderControl</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right"><a href="qtmultimedia-index.html">Qt 5.12.6 Reference Documentation</a></td>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#static-public-members">Static Public Members</a></li>
<li class="level1"><a href="#protected-functions">Protected Functions</a></li>
<li class="level1"><a href="#macros">Macros</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QImageEncoderControl Class</h1>
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<p>The <a href="qimageencodercontrol.html">QImageEncoderControl</a> class provides access to the settings of a media service that performs image encoding. <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 &lt;QImageEncoderControl&gt;</span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += multimedia</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <a href="qmediacontrol.html">QMediaControl</a></td></tr></table></div><ul>
<li><a href="qimageencodercontrol-members.html">List of all members, including inherited members</a></li>
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<a name="public-functions"></a>
<h2 id="public-functions">Public Functions</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> virtual </td><td class="memItemRight bottomAlign"><b><a href="qimageencodercontrol.html#dtor.QImageEncoderControl">~QImageEncoderControl</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual QString </td><td class="memItemRight bottomAlign"><b><a href="qimageencodercontrol.html#imageCodecDescription">imageCodecDescription</a></b>(const QString &amp;<i>codec</i>) const = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual QImageEncoderSettings </td><td class="memItemRight bottomAlign"><b><a href="qimageencodercontrol.html#imageSettings">imageSettings</a></b>() const = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qimageencodercontrol.html#setImageSettings">setImageSettings</a></b>(const QImageEncoderSettings &amp;<i>settings</i>) = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual QStringList </td><td class="memItemRight bottomAlign"><b><a href="qimageencodercontrol.html#supportedImageCodecs">supportedImageCodecs</a></b>() const = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual QList&lt;QSize&gt; </td><td class="memItemRight bottomAlign"><b><a href="qimageencodercontrol.html#supportedResolutions">supportedResolutions</a></b>(const QImageEncoderSettings &amp;<i>settings</i>, bool *<i>continuous</i> = nullptr) const = 0</td></tr>
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<h2 id="static-public-members">Static Public Members</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> const QMetaObject </td><td class="memItemRight bottomAlign"><b><a href="qimageencodercontrol.html#staticMetaObject-var">staticMetaObject</a></b></td></tr>
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<h2 id="protected-functions">Protected Functions</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qimageencodercontrol.html#QImageEncoderControl">QImageEncoderControl</a></b>(QObject *<i>parent</i> = nullptr)</td></tr>
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<h2 id="macros">Macros</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qimageencodercontrol.html#QImageEncoderControl_iid">QImageEncoderControl_iid</a></b></td></tr>
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<a name="details"></a>
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<div class="descr">
<h2 id="details">Detailed Description</h2>
<p>The <a href="qimageencodercontrol.html">QImageEncoderControl</a> class provides access to the settings of a media service that performs image encoding.</p>
<p>If a <a href="qmediaservice.html">QMediaService</a> supports encoding image data it will implement <a href="qimageencodercontrol.html">QImageEncoderControl</a>. This control allows to <a href="qimageencodercontrol.html#setImageSettings">set image encoding settings</a> and provides functions for quering supported image <a href="qimageencodercontrol.html#supportedImageCodecs">codecs</a> and <a href="qimageencodercontrol.html#supportedResolutions">resolutions</a>.</p>
<p>The interface name of <a href="qimageencodercontrol.html">QImageEncoderControl</a> is <code>org.qt-project.qt.imageencodercontrol/5.0</code> as defined in <a href="qimageencodercontrol.html#QImageEncoderControl_iid">QImageEncoderControl_iid</a>.</p>
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<p><b>See also </b><a href="qimageencodersettings.html">QImageEncoderSettings</a> and <a href="qmediaservice.html#requestControl-1">QMediaService::requestControl</a>().</p>
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<h2>Member Function Documentation</h2>
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<h3 class="fn" id="QImageEncoderControl"><a name="QImageEncoderControl"></a><code>[protected] </code>QImageEncoderControl::<span class="name">QImageEncoderControl</span>(<span class="type">QObject</span> *<i>parent</i> = nullptr)</h3>
<p>Constructs a new image encoder control object with the given <i>parent</i></p>
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<h3 class="fn" id="dtor.QImageEncoderControl"><a name="dtor.QImageEncoderControl"></a><code>[virtual] </code>QImageEncoderControl::<span class="name">~QImageEncoderControl</span>()</h3>
<p>Destroys the image encoder control.</p>
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<h3 class="fn" id="imageCodecDescription"><a name="imageCodecDescription"></a><code>[pure virtual] </code><span class="type">QString</span> QImageEncoderControl::<span class="name">imageCodecDescription</span>(const <span class="type">QString</span> &amp;<i>codec</i>) const</h3>
<p>Returns a description of an image <i>codec</i>.</p>
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<h3 class="fn" id="imageSettings"><a name="imageSettings"></a><code>[pure virtual] </code><span class="type"><a href="qimageencodersettings.html">QImageEncoderSettings</a></span> QImageEncoderControl::<span class="name">imageSettings</span>() const</h3>
<p>Returns the currently used image encoder settings.</p>
<p>The returned value may be different tha passed to <a href="qimageencodercontrol.html#setImageSettings">QImageEncoderControl::setImageSettings</a>() if the settings contains the default or undefined parameters. In this case if the undefined parameters are already resolved, they should be returned.</p>
<p><b>See also </b><a href="qimageencodercontrol.html#setImageSettings">setImageSettings</a>().</p>
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<h3 class="fn" id="setImageSettings"><a name="setImageSettings"></a><code>[pure virtual] </code><span class="type">void</span> QImageEncoderControl::<span class="name">setImageSettings</span>(const <span class="type"><a href="qimageencodersettings.html">QImageEncoderSettings</a></span> &amp;<i>settings</i>)</h3>
<p>Sets the selected image encoder <i>settings</i>.</p>
<p><b>See also </b><a href="qimageencodercontrol.html#imageSettings">imageSettings</a>().</p>
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<h3 class="fn" id="supportedImageCodecs"><a name="supportedImageCodecs"></a><code>[pure virtual] </code><span class="type">QStringList</span> QImageEncoderControl::<span class="name">supportedImageCodecs</span>() const</h3>
<p>Returns a list of supported image codecs.</p>
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<h3 class="fn" id="supportedResolutions"><a name="supportedResolutions"></a><code>[pure virtual] </code><span class="type">QList</span>&lt;<span class="type">QSize</span>&gt; QImageEncoderControl::<span class="name">supportedResolutions</span>(const <span class="type"><a href="qimageencodersettings.html">QImageEncoderSettings</a></span> &amp;<i>settings</i>, <span class="type">bool</span> *<i>continuous</i> = nullptr) const</h3>
<p>Returns a list of supported resolutions.</p>
<p>If non null image <i>settings</i> parameter is passed, the returned list is reduced to resolutions supported with partial settings applied. It can be used to query the list of resolutions, supported by specific image codec.</p>
<p>If the encoder supports arbitrary resolutions within the supported resolutions range, *<i>continuous</i> is set to true, otherwise *<i>continuous</i> is set to false.</p>
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<div class="macros">
<h2>Macro Documentation</h2>
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<h3 class="fn" id="QImageEncoderControl_iid"><a name="QImageEncoderControl_iid"></a><span class="name">QImageEncoderControl_iid</span></h3>
<p><code>org.qt-project.qt.imageencodercontrol/5.0</code></p>
<p>Defines the interface name of the <a href="qimageencodercontrol.html">QImageEncoderControl</a> class.</p>
<!-- @@@QImageEncoderControl_iid -->
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