protocols. Protocols
prefixed by &quot;-&quot; are disabled.
All protocols are allowed by default but protocols used by an another
protocol (nested protocols) are restricted to a per protocol subset.
</p></dd>
</dl>


<a name="Protocols"></a>
<h1 class="chapter"><a href="ffmpeg-protocols.html#toc-Protocols">3 Protocols</a></h1>

<p>Protocols are configured elements in FFmpeg that enable access to
resources that require specific protocols.
</p>
<p>When you configure your FFmpeg build, all the supported proto