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

<plugin>
  <name>shm</name>
  <description>shared memory sink source</description>
  <filename>../../sys/shm/.libs/libgstshm.so</filename>
  <basename>libgstshm.so</basename>
  <version>1.13.1.1</version>
  <license>LGPL</license>
  <source>gst-plugins-bad</source>
  <package>GStreamer Bad Plug-ins git</package>
  <origin>Unknown package origin</origin>
  <elements>
    <element>
      <name>shmsink</name>
      <longname>Shared Memory Sink</longname>
      <class>Sink</class>
      <description>Send data over shared memory to the matching source</description>
      <author>Olivier Crete &lt;olivier.crete@collabora.co.uk&gt;</author>
      <pads>
        <caps>
          <name>sink</name>
          <direction>sink</direction>
          <presence>always</presence>
          <details>ANY</details>
        </caps>
      </pads>
    </element>
    <element>
      <name>shmsrc</name>
      <longname>Shared Memory Source</longname>
      <class>Source</class>
      <description>Receive data from the shared memory sink</description>
      <author>Olivier Crete &lt;olivier.crete@collabora.co.uk&gt;</author>
      <pads>
        <caps>
          <name>src</name>
          <direction>source</direction>
          <presence>always</presence>
          <details>ANY</details>
        </caps>
      </pads>
    </element>
  </elements>
</plugin>