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

<plugin>
  <name>adder</name>
  <description>Adds multiple streams</description>
  <filename>../../gst/adder/.libs/libgstadder.so</filename>
  <basename>libgstadder.so</basename>
  <version>0.10.0</version>
  <license>LGPL</license>
  <source>gst-plugins-base</source>
  <package>GStreamer Base Plug-ins source release</package>
  <origin>Unknown package origin</origin>
  <elements>
    <element>
      <name>adder</name>
      <longname>Adder</longname>
      <class>Generic/Audio</class>
      <description>Add N audio channels together</description>
      <author>Thomas &lt;thomas@apestaart.org&gt;</author>
    </element>
  </elements>
</plugin>