mp>&rsquo;</dt>
<dd><p>Show available devices.
</p>
</dd>
<dt>&lsquo;<samp>-codecs</samp>&rsquo;</dt>
<dd><p>Show all codecs known to libavcodec.
</p>
<p>Note that the term &rsquo;codec&rsquo; is used throughout this documentation as a shortcut
for what is more correctly called a media bitstream format.
</p>
</dd>
<dt>&lsquo;<samp>-decoders</samp>&rsquo;</dt>
<dd><p>Show available decoders.
</p>
</dd>
<dt>&lsquo;<samp>-encoders</samp>&rsquo;</dt>
<dd><p>Show all available encoders.
</p>
</dd>
<dt>&lsquo;<sa