video in seconds.
Defaults to &lsquo;<samp>0.5</samp>&rsquo;.
</p>
</dd>
</dl>

<a name="Examples-12"></a>
<h3 class="subsection"><a href="ffmpeg-devices.html#toc-Examples-12">4.3.2 Examples</a></h3>

<ul>
<li>
List output devices:
<div class="example">
<pre class="example">ffmpeg -i test.avi -f decklink -list_devices 1 dummy
</pre></div>

</li><li>
List supported formats:
<div class="example">
<pre class="example">ffmpeg -i test.avi -f decklink -list_formats 1 'DeckLink Mini Monitor'
</pre></div>

</li><li