gt;
</samp>&rsquo;
and/or
&lsquo;<samp>
    -audio_device_index &lt;INDEX&gt;
</samp>&rsquo;
, overriding any
device name or index given in the input filename.
</p>
<p>All available devices can be enumerated by using &lsquo;<samp>-list_devices true</samp>&rsquo;, listing
all device names and corresponding indices.
</p>
<p>There are two device name aliases:
</p><dl compact="compact">
<dt><code>default</code></dt>
<dd><p>Select the AVFoundation default device of the corresponding type.
</p>
</dd>
<dt><code>no