_input</samp>&rsquo;</dt>
<dd><p>Sets the video input source. Must be &lsquo;<samp>unset</samp>&rsquo;, &lsquo;<samp>sdi</samp>&rsquo;, &lsquo;<samp>hdmi</samp>&rsquo;,
&lsquo;<samp>optical_sdi</samp>&rsquo;, &lsquo;<samp>component</samp>&rsquo;, &lsquo;<samp>composite</samp>&rsquo; or &lsquo;<samp>s_video</samp>&rsquo;.
Defaults to &lsquo;<samp>unset</samp>&rsquo;.
</p>
</dd>
<dt>&lsquo;<samp>audio_input</samp>&rsquo;</dt>
<dd><p>Sets the audio input source. Must be &lsquo;<samp>unset</samp>&rsquo;, &lsquo