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

<plugin>
  <name>twolame</name>
  <description>Encode MP2s with TwoLAME</description>
  <filename>../../ext/twolame/.libs/libgsttwolame.so</filename>
  <basename>libgsttwolame.so</basename>
  <version>1.9.1</version>
  <license>LGPL</license>
  <source>gst-plugins-ugly</source>
  <package>GStreamer Ugly Plug-ins source release</package>
  <origin>Unknown package origin</origin>
  <elements>
    <element>
      <name>twolamemp2enc</name>
      <longname>TwoLAME mp2 encoder</longname>
      <class>Codec/Encoder/Audio</class>
      <description>High-quality free MP2 encoder</description>
      <author>Sebastian Dröge &lt;sebastian.droege@collabora.co.uk&gt;</author>
      <pads>
        <caps>
          <name>sink</name>
          <direction>sink</direction>
          <presence>always</presence>
          <details>audio/x-raw, format=(string){ F32LE, S16LE }, layout=(string)interleaved, rate=(int){ 16000, 22050, 24000, 32000, 44100, 48000 }, channels=(int)1; audio/x-raw, format=(string){ F32LE, S16LE }, layout=(string)interleaved, rate=(int){ 16000, 22050, 24000, 32000, 44100, 48000 }, channels=(int)2, channel-mask=(bitmask)0x0000000000000003</details>
        </caps>
        <caps>
          <name>src</name>
          <direction>source</direction>
          <presence>always</presence>
          <details>audio/mpeg, mpegversion=(int)1, layer=(int)2, rate=(int){ 16000, 22050, 24000, 32000, 44100, 48000 }, channels=(int)[ 1, 2 ]</details>
        </caps>
      </pads>
    </element>
  </elements>
</plugin>