squo;</dt>
<dd><p>Use absolute timestamps (wall clock).
</p>
</dd>
<dt>&lsquo;<samp>mono2abs</samp>&rsquo;</dt>
<dd><p>Force conversion from monotonic to absolute timestamps.
</p></dd>
</dl>

<p>Default value is <code>default</code>.
</p>
</dd>
<dt>&lsquo;<samp>use_libv4l2</samp>&rsquo;</dt>
<dd><p>Use libv4l2 (v4l-utils) conversion functions. Default is 0.
</p>
</dd>
</dl>

<a name="vfwcap"></a>
<h2 class="section"><a href="ffmpeg-devices.html#toc-vfwcap">3.21 vfwcap</a></h2>

<p>VfW (Video for Windows) ca