256 lines
12 KiB
HTML
256 lines
12 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
|
|
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
|
|
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
|
|
|
<title>Live — Shaka Packager documentation</title>
|
|
|
|
<link rel="stylesheet" href="../_static/sphinxdoc_new.css" type="text/css" />
|
|
<link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
|
|
<link rel="stylesheet" href="../_static/table_styling.css" type="text/css" />
|
|
|
|
<script type="text/javascript">
|
|
var DOCUMENTATION_OPTIONS = {
|
|
URL_ROOT: '../',
|
|
VERSION: '',
|
|
COLLAPSE_INDEX: false,
|
|
FILE_SUFFIX: '.html',
|
|
HAS_SOURCE: true,
|
|
SOURCELINK_SUFFIX: '.txt'
|
|
};
|
|
</script>
|
|
<script type="text/javascript" src="../_static/jquery.js"></script>
|
|
<script type="text/javascript" src="../_static/underscore.js"></script>
|
|
<script type="text/javascript" src="../_static/doctools.js"></script>
|
|
<script type="text/javascript" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
|
|
<link rel="index" title="Index" href="../genindex.html" />
|
|
<link rel="search" title="Search" href="../search.html" />
|
|
<link rel="next" title="DRM" href="drm.html" />
|
|
<link rel="prev" title="HLS" href="hls.html" />
|
|
</head>
|
|
<body role="document">
|
|
<div class="related" role="navigation" aria-label="related navigation">
|
|
<h3>Navigation</h3>
|
|
<ul>
|
|
<li class="right" style="margin-right: 10px">
|
|
<a href="../genindex.html" title="General Index"
|
|
accesskey="I">index</a></li>
|
|
<li class="right" >
|
|
<a href="drm.html" title="DRM"
|
|
accesskey="N">next</a> |</li>
|
|
<li class="right" >
|
|
<a href="hls.html" title="HLS"
|
|
accesskey="P">previous</a> |</li>
|
|
<li class="nav-item nav-item-0"><a href="../index.html">Shaka Packager documentation</a> »</li>
|
|
<li class="nav-item nav-item-1"><a href="tutorials.html" accesskey="U">Tutorials</a> »</li>
|
|
</ul>
|
|
</div>
|
|
<div class="sphinxsidebar" role="navigation" aria-label="main navigation">
|
|
<div class="sphinxsidebarwrapper">
|
|
<h3><a href="../index.html">Table Of Contents</a></h3>
|
|
<ul>
|
|
<li><a class="reference internal" href="#">Live</a><ul>
|
|
<li><a class="reference internal" href="#examples">Examples</a><ul>
|
|
<li><a class="reference internal" href="#udp-file-options">UDP file options</a></li>
|
|
<li><a class="reference internal" href="#segment-template-formatting">Segment template formatting</a></li>
|
|
</ul>
|
|
</li>
|
|
</ul>
|
|
</li>
|
|
</ul>
|
|
|
|
<h4>Previous topic</h4>
|
|
<p class="topless"><a href="hls.html"
|
|
title="previous chapter">HLS</a></p>
|
|
<h4>Next topic</h4>
|
|
<p class="topless"><a href="drm.html"
|
|
title="next chapter">DRM</a></p>
|
|
<div role="note" aria-label="source link">
|
|
<h3>This Page</h3>
|
|
<ul class="this-page-menu">
|
|
<li><a href="../_sources/tutorials/live.rst.txt"
|
|
rel="nofollow">Show Source</a></li>
|
|
</ul>
|
|
</div>
|
|
<div id="searchbox" style="display: none" role="search">
|
|
<h3>Quick search</h3>
|
|
<form class="search" action="../search.html" method="get">
|
|
<div><input type="text" name="q" /></div>
|
|
<div><input type="submit" value="Go" /></div>
|
|
<input type="hidden" name="check_keywords" value="yes" />
|
|
<input type="hidden" name="area" value="default" />
|
|
</form>
|
|
</div>
|
|
<script type="text/javascript">$('#searchbox').show(0);</script>
|
|
</div>
|
|
</div>
|
|
|
|
<div class="document">
|
|
<div class="documentwrapper">
|
|
<div class="bodywrapper">
|
|
<div class="body" role="main">
|
|
|
|
<div class="section" id="live">
|
|
<h1>Live<a class="headerlink" href="#live" title="Permalink to this headline">¶</a></h1>
|
|
<p>A typical live source is UDP multicast, which is the only live protocol
|
|
packager supports directly right now.</p>
|
|
<p>For other unsupported protocols, you can use FFmpeg to pipe the input.
|
|
See <a class="reference internal" href="ffmpeg_piping.html"><span class="doc">FFmpeg piping</span></a> for details.</p>
|
|
<div class="section" id="examples">
|
|
<h2>Examples<a class="headerlink" href="#examples" title="Permalink to this headline">¶</a></h2>
|
|
<p>The command is similar to the on-demand, see <a class="reference internal" href="dash.html"><span class="doc">DASH</span></a> and <a class="reference internal" href="hls.html"><span class="doc">HLS</span></a>.</p>
|
|
<p>Here are some examples.</p>
|
|
<ul>
|
|
<li><p class="first">DASH:</p>
|
|
<div class="highlight-default"><div class="highlight"><pre><span></span>$ packager \
|
|
'in=udp://225.1.1.8:8001?interface=172.29.46.122,stream=audio,init_segment=audio_init.mp4,segment_template=audio_$Number$.m4s' \
|
|
'in=udp://225.1.1.8:8001?interface=172.29.46.122,stream=video,init_segment=h264_360p_init.mp4,segment_template=h264_360p_$Number$.m4s' \
|
|
'in=udp://225.1.1.8:8002?interface=172.29.46.122,stream=video,init_segment=h264_480p_init.mp4,segment_template=h264_480p_$Number$.m4s' \
|
|
'in=udp://225.1.1.8:8003?interface=172.29.46.122,stream=video,init_segment=h264_720p_init.mp4,segment_template=h264_720p_$Number$.m4s' \
|
|
'in=udp://225.1.1.8:8004?interface=172.29.46.122,stream=video,init_segment=h264_1080p_init.mp4,segment_template=h264_1080p_$Number$.m4s' \
|
|
--mpd_output h264.mpd
|
|
</pre></div>
|
|
</div>
|
|
</li>
|
|
<li><p class="first">HLS:</p>
|
|
<div class="highlight-default"><div class="highlight"><pre><span></span>$ packager \
|
|
'in=udp://225.1.1.8:8001?interface=172.29.46.122,stream=audio,init_segment=audio_init.mp4,segment_template=audio_$Number$.m4s,playlist_name=audio.m3u8,hls_group_id=audio,hls_name=ENGLISH' \
|
|
'in=udp://225.1.1.8:8001?interface=172.29.46.122,stream=video,init_segment=h264_360p_init.mp4,segment_template=h264_360p_$Number$.m4s,playlist_name=h264_360p.m3u8' \
|
|
'in=udp://225.1.1.8:8002?interface=172.29.46.122,stream=video,init_segment=h264_480p_init.mp4,segment_template=h264_480p_$Number$.m4s,playlist_name=h264_480p.m3u8' \
|
|
'in=udp://225.1.1.8:8003?interface=172.29.46.122,stream=video,init_segment=h264_720p_init.mp4,segment_template=h264_720p_$Number$.m4s,playlist_name=h264_720p.m3u8' \
|
|
'in=udp://225.1.1.8:8004?interface=172.29.46.122,stream=video,init_segment=h264_1080p_init.mp4,segment_template=h264_1080p_$Number$.m4s,playlist_name=h264_1080p.m3u8' \
|
|
--hls_master_playlist_output h264_master.m3u8
|
|
</pre></div>
|
|
</div>
|
|
</li>
|
|
</ul>
|
|
<div class="admonition note">
|
|
<p class="first admonition-title">Note</p>
|
|
<p class="last">Packager does not support removing old segments internally. The user is
|
|
resposible for setting up a cron job to do so.</p>
|
|
</div>
|
|
<div class="section" id="udp-file-options">
|
|
<h3>UDP file options<a class="headerlink" href="#udp-file-options" title="Permalink to this headline">¶</a></h3>
|
|
<p>UDP file is of the form udp://ip:port[?options]. Here is the list of supported
|
|
options:</p>
|
|
<table class="docutils field-list" frame="void" rules="none">
|
|
<col class="field-name" />
|
|
<col class="field-body" />
|
|
<tbody valign="top">
|
|
<tr class="field-odd field"><th class="field-name">reuse=0|1:</th><td class="field-body">Allow or disallow reusing UDP sockets.</td>
|
|
</tr>
|
|
<tr class="field-even field"><th class="field-name" colspan="2">interface=<addr>, source=<addr>:</th></tr>
|
|
<tr class="field-even field"><td> </td><td class="field-body">Multicast group interface address. Only the packets sent to this address is
|
|
received. Default to “0.0.0.0” if not specified.</td>
|
|
</tr>
|
|
<tr class="field-odd field"><th class="field-name" colspan="2">timeout=<microseconds>:</th></tr>
|
|
<tr class="field-odd field"><td> </td><td class="field-body">UDP timeout in microseconds.</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
<div class="section" id="segment-template-formatting">
|
|
<h3>Segment template formatting<a class="headerlink" href="#segment-template-formatting" title="Permalink to this headline">¶</a></h3>
|
|
<p>The implementation is based on <em>Template-based Segment URL construction</em>
|
|
described in ISO/IEC 23009-1:2014.</p>
|
|
<table border="1" class="styled-table docutils" id="id1">
|
|
<caption><span class="caption-text">Supported identifiers</span><a class="headerlink" href="#id1" title="Permalink to this table">¶</a></caption>
|
|
<colgroup>
|
|
<col width="19%" />
|
|
<col width="41%" />
|
|
<col width="41%" />
|
|
</colgroup>
|
|
<thead valign="bottom">
|
|
<tr class="row-odd"><th class="left-align head">$<Identifier>$</th>
|
|
<th class="left-align head">Substitution parameter</th>
|
|
<th class="left-align head">Format</th>
|
|
</tr>
|
|
</thead>
|
|
<tbody valign="top">
|
|
<tr class="row-even"><td class="left-align">$$</td>
|
|
<td class="left-align">is an escape sequence, i.e.
|
|
“$$” is replaced with a single
|
|
“$”.</td>
|
|
<td class="left-align">Not applicable.</td>
|
|
</tr>
|
|
<tr class="row-odd"><td class="left-align">$Number$</td>
|
|
<td class="left-align">This identifier is substitued
|
|
with the <em>number</em> of the
|
|
corresponding Segment.</td>
|
|
<td class="left-align"><p class="first">The format tag may be present.</p>
|
|
<p class="last">If no format tag is present, a
|
|
default format tag with
|
|
<em>width</em>=1 shall be used.</p>
|
|
</td>
|
|
</tr>
|
|
<tr class="row-even"><td class="left-align">$Time$</td>
|
|
<td class="left-align">This identifier is substituted
|
|
with the value of the
|
|
<strong>SegmentTimeline@t</strong>
|
|
attribute for the Segment
|
|
being accessed. Either
|
|
$Number$ or $Time$ may be used
|
|
but not both at the same time.</td>
|
|
<td class="left-align"><p class="first">The format tag may be present.</p>
|
|
<p class="last">If no format tag is present, a
|
|
default format tag with
|
|
<em>width</em>=1 shall be used.</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<div class="admonition note">
|
|
<p class="first admonition-title">Note</p>
|
|
<p class="last">Identifiers $RepresentationID$ and $Bandwidth$ are not supported in this
|
|
version. Please file an <a class="reference external" href="https://github.com/google/shaka-packager/issues">issue</a> if you want it to be
|
|
supported.</p>
|
|
</div>
|
|
<p>In each URL, the identifiers shall be replaced by the substitution parameter
|
|
per the definition in the above table. Identifier matching is case-sensitive.</p>
|
|
<p>Each identifier may be suffixed, within the enclosing ‘$’ characters, with an
|
|
additional format tag aligned with the <em>printf</em> format tag as defined in IEEE
|
|
1003.1-2008 following this prototype:</p>
|
|
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="o">%</span><span class="mi">0</span><span class="p">[</span><span class="n">width</span><span class="p">]</span><span class="n">d</span>
|
|
</pre></div>
|
|
</div>
|
|
<p>The <em>width</em> parameter is an unsigned integer that provides the minimum number
|
|
of characters to be printed. If the value to be printed is shorter than this
|
|
number, the result shall be padded with zeros. The value is not truncated even
|
|
if the result is larger.</p>
|
|
<p>Strings outside identifiers shall only contain characters that are permitted
|
|
within URLs according to RFC 3986.</p>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div class="clearer"></div>
|
|
</div>
|
|
<div class="related" role="navigation" aria-label="related navigation">
|
|
<h3>Navigation</h3>
|
|
<ul>
|
|
<li class="right" style="margin-right: 10px">
|
|
<a href="../genindex.html" title="General Index"
|
|
>index</a></li>
|
|
<li class="right" >
|
|
<a href="drm.html" title="DRM"
|
|
>next</a> |</li>
|
|
<li class="right" >
|
|
<a href="hls.html" title="HLS"
|
|
>previous</a> |</li>
|
|
<li class="nav-item nav-item-0"><a href="../index.html">Shaka Packager documentation</a> »</li>
|
|
<li class="nav-item nav-item-1"><a href="tutorials.html" >Tutorials</a> »</li>
|
|
</ul>
|
|
</div>
|
|
<div class="footer" role="contentinfo">
|
|
© Copyright 2017, Google.
|
|
Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.5.3.
|
|
</div>
|
|
</body>
|
|
</html> |