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

<plugin>
  <name>openal</name>
  <description>OpenAL plugin library</description>
  <filename>../../ext/openal/.libs/libgstopenal.so</filename>
  <basename>libgstopenal.so</basename>
  <version>1.14.0</version>
  <license>LGPL</license>
  <source>gst-plugins-bad</source>
  <package>GStreamer Bad Plug-ins source release</package>
  <origin>Unknown package origin</origin>
  <elements>
    <element>
      <name>openalsink</name>
      <longname>OpenAL Audio Sink</longname>
      <class>Sink/Audio</class>
      <description>Output audio through OpenAL</description>
      <author>Juan Manuel Borges Caño &lt;juanmabcmail@gmail.com&gt;</author>
      <pads>
        <caps>
          <name>sink</name>
          <direction>sink</direction>
          <presence>always</presence>
          <details>audio/x-raw, format=(string)F64LE, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2 ]; audio/x-raw, format=(string)F32LE, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]; audio/x-raw, format=(string)S16LE, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]; audio/x-raw, format=(string)U8, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]</details>
        </caps>
      </pads>
    </element>
    <element>
      <name>openalsrc</name>
      <longname>OpenAL Audio Source</longname>
      <class>Source/Audio</class>
      <description>Input audio through OpenAL</description>
      <author>Juan Manuel Borges Caño &lt;juanmabcmail@gmail.com&gt;</author>
      <pads>
        <caps>
          <name>src</name>
          <direction>source</direction>
          <presence>always</presence>
          <details>audio/x-raw, format=(string)S16LE, rate=(int)[ 1, 2147483647 ], channels=(int)1; audio/x-raw, format=(string)U8, rate=(int)[ 1, 2147483647 ], channels=(int)1</details>
        </caps>
      </pads>
    </element>
  </elements>
</plugin>