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funcs/func_jitterbuffer: Tweak documentation

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This patch merely reformats and cleans up a bit of the jitterbuffer
documentation for the wiki.
........

Merged revisions 420639 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@420640 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Matthew Jordan
2014-08-11 01:31:56 +00:00
parent add46fd27c
commit 6650704414
1 changed files with 27 additions and 15 deletions
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funcs/func_jitterbuffer.c
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@@ -49,23 +49,35 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
</synopsis> </synopsis>
<syntax> <syntax>
<parameter name="jitterbuffer type" required="true"> <parameter name="jitterbuffer type" required="true">
<para>Jitterbuffer type can be <literal>fixed</literal>, <literal>adaptive</literal>, or <optionlist>
<literal>disabled</literal>.</para> <option name="fixed">
<para>Used as follows. </para> <para>Set a fixed jitterbuffer on the channel.</para>
<para>Set(JITTERBUFFER(type)=max_size[,resync_threshold[,target_extra]])</para> </option>
<para>Set(JITTERBUFFER(type)=default) </para> <option name="adaptive">
<para>Set an adaptive jitterbuffer on the channel.</para>
</option>
<option name="disabled">
<para>Remove a previously set jitterbuffer from the channel.</para>
</option>
</optionlist>
</parameter> </parameter>
</syntax> </syntax>
<description> <description>
<para>max_size: Defaults to 200 ms</para> <para>Jitterbuffers are constructed in two different ways.
<para>Length in milliseconds of buffer.</para> The first always take three arguments: <replaceable>max_size</replaceable>,
<para> </para> <replaceable>resync_threshold</replaceable>, and <replaceable>target_extra</replaceable>.
<para>resync_threshold: Defaults to 1000ms </para> Alternatively, a single argument of <literal>default</literal> can be provided,
<para>The length in milliseconds over which a timestamp difference will result in resyncing the jitterbuffer. </para> which will construct the default jitterbuffer for the given
<para> </para> <replaceable>jitterbuffer type</replaceable>.</para>
<para>target_extra: Defaults to 40ms</para> <para>The arguments are:</para>
<para>This option only affects the adaptive jitterbuffer. It represents the amount time in milliseconds by which the new jitter buffer will pad its size.</para> <para><replaceable>max_size</replaceable>: Length in milliseconds of the buffer.
<para> </para> Defaults to 200 ms.</para>
<para><replaceable>resync_threshold</replaceable>: The length in milliseconds over
which a timestamp difference will result in resyncing the jitterbuffer.
Defaults to 1000ms.</para>
<para>target_extra: This option only affects the adaptive jitterbuffer. It represents
the amount time in milliseconds by which the new jitter buffer will pad its size.
Defaults to 40ms.</para>
<example title="Fixed with defaults" language="text"> <example title="Fixed with defaults" language="text">
exten => 1,1,Set(JITTERBUFFER(fixed)=default) exten => 1,1,Set(JITTERBUFFER(fixed)=default)
</example> </example>