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<title>alphacolor: GStreamer Good Plugins 1.0 Plugins Reference Manual</title>
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<a href="#gst-plugins-good-plugins-alphacolor.object-hierarchy" class="shortcut">Object Hierarchy</a></span>
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<a name="gst-plugins-good-plugins-alphacolor"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-alphacolor.top_of_page"></a>alphacolor</span></h2>
<td class="gallery_image" valign="top" align="right"></td>
<a name="GstAlphaColor"></a><div class="refsect1">
<a name="gst-plugins-good-plugins-alphacolor.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody><tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="gst-plugins-good-plugins-alphacolor.html#GstAlphaColor-struct" title="struct GstAlphaColor">GstAlphaColor</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-alphacolor.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="https://developer.gnome.org/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>
<span class="lineart">╰──</span> <a href="https://developer.gnome.org/gobject/unstable/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
<span class="lineart">╰──</span> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a>
<span class="lineart">╰──</span> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html">GstElement</a>
<span class="lineart">╰──</span> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-libs/html/GstBaseTransform.html">GstBaseTransform</a>
<span class="lineart">╰──</span> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstvideofilter.html#GstVideoFilter">GstVideoFilter</a>
<span class="lineart">╰──</span> GstAlphaColor
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-alphacolor.description"></a><h2>Description</h2>
<p>The alphacolor element does memory-efficient (in-place) colourspace
conversion from RGBA to AYUV or AYUV to RGBA while preserving the
alpha channel.</p>
<p>Sample pipeline:</p>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1
2</pre></td>
<td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> videotestsrc <span class="gtkdoc opt">!</span> <span class="string">"video/x-raw,format=(fourcc)AYUV"</span> <span class="gtkdoc opt">!</span> \
alphacolor <span class="gtkdoc opt">!</span> videoconvert <span class="gtkdoc opt">!</span> autovideosink</pre></td>
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</tbody>
</table>
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<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.9.6.6.1"></a><h3>Element Information</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">plugin</span></p></td>
<td>
<a class="link" href="gst-plugins-good-plugins-plugin-alphacolor.html#plugin-alphacolor">alphacolor</a>
</td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Wim Taymans <wim.taymans@gmail.com></td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Filter/Converter/Video</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.9.6.6.2"></a><h3>Element Pads</h3>
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<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>video/x-raw, format=(string){ RGBA, BGRA, ARGB, ABGR, AYUV }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
</tr>
</tbody>
</table></div>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>src</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>source</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>video/x-raw, format=(string){ RGBA, BGRA, ARGB, ABGR, AYUV }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-alphacolor.functions_details"></a><h2>Functions</h2>
<a name="gst-plugins-good-plugins-alphacolor.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstAlphaColor-struct"></a><h3>struct GstAlphaColor</h3>
<pre class="programlisting">struct GstAlphaColor;</pre>
</div>
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