gstreamer/docs/plugins/inspect/plugin-alpha.xml

<plugin>
  <name>alpha</name>
  <description>adds an alpha channel to video</description>
  <filename>../../gst/alpha/.libs/libgstalpha.so</filename>
  <basename>libgstalpha.so</basename>
  <version>0.10.5</version>
  <license>LGPL</license>
  <source>gst-plugins-good</source>
  <package>GStreamer Good Plug-ins source release</package>
  <origin>Unknown package origin</origin>
  <elements>
    <element>
      <name>alpha</name>
      <longname>Alpha filter</longname>
      <class>Filter/Effect/Video</class>
      <description>Adds an alpha channel to video</description>
      <author>Wim Taymans &lt;wim@fluendo.com&gt;</author>
    </element>
  </elements>
</plugin>