<?xml version="1.0"?>

<!--
  Copyright (C) Nginx, Inc.
  -->

<!DOCTYPE module SYSTEM "../../../../dtd/module.dtd">

<module name="Module ngx_http_f4f_module"
        link="/en/docs/http/ngx_http_f4f_module.html"
        lang="en"
        rev="1">

<section id="summary">

<para>
The <literal>ngx_http_f4f_module</literal> module provides
server-side support for Adobe HTTP Dynamic Streaming (HDS).
</para>

<para>
This module implements handling of HTTP Dynamic Streaming requests in the
“<literal>/videoSeg1-Frag1</literal>” form — extracting the needed fragment
from the <path>videoSeg1.f4f</path> file using the <path>videoSeg1.f4x</path>
index file.
This module is an alternative to the Adobe’s f4f module (HTTP Origin Module)
for Apache.
</para>

<para>
Usual pre-processing with Adobe’s f4fpackager is required, see relevant
documentation for details.
</para>

<para>
<note>
This module is available as part of our <commercial_version/> only.
</note>
</para>

</section>


<section id="example" name="Example Configuration">

<para>
<example>
location /video/ {
    f4f;
    ...
}
</example>
</para>

</section>


<section id="directives" name="Directives">

<directive name="f4f">
<syntax/>
<default/>
<context>location</context>

<para>
Turns on module processing in the surrounding location.
</para>

</directive>


<directive name="f4f_buffer_size">
<syntax><value>size</value></syntax>
<default>512k</default>
<context>http</context>
<context>server</context>
<context>location</context>

<para>
Sets the size of a memory buffer used for reading the <path>.f4x</path> index
file.
</para>

</directive>

</section>

</module>