gstreamer/docs/plugins/inspect/plugin-video4linux.xml

<plugin>
  <name>video4linux</name>
  <description>elements for Video 4 Linux</description>
  <filename>../../sys/v4l/.libs/libgstvideo4linux.so</filename>
  <basename>libgstvideo4linux.so</basename>
  <version>0.10.31.1</version>
  <license>LGPL</license>
  <source>gst-plugins-base</source>
  <package>GStreamer Base Plug-ins git</package>
  <origin>Unknown package origin</origin>
  <elements>
    <element>
      <name>v4lsrc</name>
      <longname>Video (video4linux/raw) Source</longname>
      <class>Source/Video</class>
      <description>Reads raw frames from a video4linux device</description>
      <author>GStreamer maintainers &lt;gstreamer-devel@lists.sourceforge.net&gt;</author>
      <pads>
        <caps>
          <name>src</name>
          <direction>source</direction>
          <presence>always</presence>
          <details>ANY</details>
        </caps>
      </pads>
    </element>
  </elements>
</plugin>