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

<plugin>
  <name>audiofxbad</name>
  <description>Audio filters from gst-plugins-bad</description>
  <filename>../../gst/audiofxbad/.libs/libgstaudiofxbad.so</filename>
  <basename>libgstaudiofxbad.so</basename>
  <version>1.11.1</version>
  <license>LGPL</license>
  <source>gst-plugins-bad</source>
  <package>GStreamer Bad Plug-ins</package>
  <origin>Unknown package origin</origin>
  <elements>
    <element>
      <name>audiochannelmix</name>
      <longname>Simple stereo audio mixer</longname>
      <class>Audio/Mixer</class>
      <description>Mixes left/right channels of stereo audio</description>
      <author>David Schleef &lt;ds@schleef.org&gt;</author>
      <pads>
        <caps>
          <name>sink</name>
          <direction>sink</direction>
          <presence>always</presence>
          <details>audio/x-raw, format=(string)S16LE, rate=(int)[ 1, 2147483647 ], channels=(int)2, layout=(string)interleaved</details>
        </caps>
        <caps>
          <name>src</name>
          <direction>source</direction>
          <presence>always</presence>
          <details>audio/x-raw, format=(string)S16LE, rate=(int)[ 1, 2147483647 ], channels=(int)2, layout=(string)interleaved</details>
        </caps>
      </pads>
    </element>
  </elements>
</plugin>