p>
</dd>
<dt>&lsquo;<samp>post_data</samp>&rsquo;</dt>
<dd><p>Set custom HTTP post data.
</p>
</dd>
<dt>&lsquo;<samp>referer</samp>&rsquo;</dt>
<dd><p>Set the Referer header. Include &rsquo;Referer: URL&rsquo; header in HTTP request.
</p>
</dd>
<dt>&lsquo;<samp>user_agent</samp>&rsquo;</dt>
<dd><p>Override the User-Agent header. If not specified the protocol will use a
string describing the libavformat build. (&quot;Lavf/&lt;version&gt;&quot;)
</p>
</dd>
<dt>&lsquo;<samp>user-agent</samp>&rsquo;</dt>
<dd><p