<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>multipartdemux: GStreamer Good Plugins 1.0 Plugins Reference Manual</title> <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> <link rel="home" href="index.html" title="GStreamer Good Plugins 1.0 Plugins Reference Manual"> <link rel="up" href="ch01.html" title="gst-plugins-good Elements"> <link rel="prev" href="gst-plugins-good-plugins-multifilesrc.html" title="multifilesrc"> <link rel="next" href="gst-plugins-good-plugins-multipartmux.html" title="multipartmux"> <meta name="generator" content="GTK-Doc V1.24 (XML mode)"> <link rel="stylesheet" href="style.css" type="text/css"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle"> <td width="100%" 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src="right.png" width="16" height="16" border="0" alt="Next"></a></td> </tr></table> <div class="refentry"> <a name="gst-plugins-good-plugins-multipartdemux"></a><div class="titlepage"></div> <div class="refnamediv"><table width="100%"><tr> <td valign="top"> <h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-multipartdemux.top_of_page"></a>multipartdemux</span></h2> <p>multipartdemux</p> </td> <td class="gallery_image" valign="top" align="right"></td> </tr></table></div> <div class="refsect1"> <a name="gst-plugins-good-plugins-multipartdemux.properties"></a><h2>Properties</h2> <div class="informaltable"><table class="informaltable" border="0"> <colgroup> <col width="150px" class="properties_type"> <col width="300px" class="properties_name"> <col width="200px" class="properties_flags"> </colgroup> <tbody> <tr> <td class="property_type"> <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td> <td class="property_name"><a class="link" href="gst-plugins-good-plugins-multipartdemux.html#GstMultipartDemux--boundary" title="The “boundary” property">boundary</a></td> <td class="property_flags">Read / Write / Construct</td> </tr> <tr> <td class="property_type"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td> <td class="property_name"><a class="link" href="gst-plugins-good-plugins-multipartdemux.html#GstMultipartDemux--single-stream" title="The “single-stream” property">single-stream</a></td> <td class="property_flags">Read / Write</td> </tr> </tbody> </table></div> </div> <a name="GstMultipartDemux"></a><div class="refsect1"> <a name="gst-plugins-good-plugins-multipartdemux.other"></a><h2>Types and Values</h2> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="name"> <col class="description"> </colgroup> <tbody><tr> <td class="datatype_keyword">struct</td> <td class="function_name"><a class="link" href="gst-plugins-good-plugins-multipartdemux.html#GstMultipartDemux-struct" title="struct GstMultipartDemux">GstMultipartDemux</a></td> </tr></tbody> </table></div> </div> <div class="refsect1"> <a name="gst-plugins-good-plugins-multipartdemux.object-hierarchy"></a><h2>Object Hierarchy</h2> <pre class="screen"> <a href="https://developer.gnome.org/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a> <span class="lineart">╰──</span> <a href="https://developer.gnome.org/gobject/unstable/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a> <span class="lineart">╰──</span> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a> <span class="lineart">╰──</span> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html">GstElement</a> <span class="lineart">╰──</span> GstMultipartDemux </pre> </div> <div class="refsect1"> <a name="gst-plugins-good-plugins-multipartdemux.description"></a><h2>Description</h2> <p>MultipartDemux uses the Content-type field of incoming buffers to demux and push data to dynamic source pads. Most of the time multipart streams are sequential JPEG frames generated from a live source such as a network source or a camera.</p> <p>The output buffers of the multipartdemux typically have no timestamps and are usually played as fast as possible (at the rate that the source provides the data).</p> <p>the content in multipart files is separated with a boundary string that can be configured specifically with the <a class="link" href="gst-plugins-good-plugins-multipartdemux.html#GstMultipartDemux--boundary" title="The “boundary” property"><span class="type">“boundary”</span></a> property otherwise it will be autodetected.</p> <div class="refsect2"> <a name="id-1.2.88.7.5"></a><h3>Sample pipelines</h3> <div class="informalexample"> <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> <tbody> <tr> <td class="listing_lines" align="right"><pre>1</pre></td> <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> filesrc location<span class="gtkdoc opt">=/</span>tmp<span class="gtkdoc opt">/</span>test<span class="gtkdoc opt">.</span>multipart <span class="gtkdoc opt">!</span> multipartdemux <span class="gtkdoc opt">!</span> image<span class="gtkdoc opt">/</span>jpeg<span class="gtkdoc opt">,</span>framerate<span class="gtkdoc opt">=</span>\<span class="gtkdoc opt">(</span>fraction\<span class="gtkdoc opt">)</span><span class="number">5</span><span class="gtkdoc opt">/</span><span class="number">1</span> <span class="gtkdoc opt">!</span> jpegparse <span class="gtkdoc opt">!</span> jpegdec <span class="gtkdoc opt">!</span> videoconvert <span class="gtkdoc opt">!</span> autovideosink</pre></td> </tr> </tbody> </table> </div> a simple pipeline to demux a multipart file muxed with <a class="link" href="gst-plugins-good-plugins-multipartmux.html#GstMultipartMux"><span class="type">GstMultipartMux</span></a> containing JPEG frames. </div> <div class="refsynopsisdiv"> <h2>Synopsis</h2> <div class="refsect2"> <a name="id-1.2.88.7.6.1"></a><h3>Element Information</h3> <div class="variablelist"><table border="0" class="variablelist"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <tbody> <tr> <td><p><span class="term">plugin</span></p></td> <td> <a class="link" href="gst-plugins-good-plugins-plugin-multipart.html#plugin-multipart">multipart</a> </td> </tr> <tr> <td><p><span class="term">author</span></p></td> <td>Wim Taymans <wim.taymans@gmail.com>, Sjoerd Simons <sjoerd@luon.net></td> </tr> <tr> <td><p><span class="term">class</span></p></td> <td>Codec/Demuxer</td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2"> <a name="id-1.2.88.7.6.2"></a><h3>Element Pads</h3> <div class="variablelist"><table border="0" class="variablelist"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <tbody> <tr> <td><p><span class="term">name</span></p></td> <td>sink</td> </tr> <tr> <td><p><span class="term">direction</span></p></td> <td>sink</td> </tr> <tr> <td><p><span class="term">presence</span></p></td> <td>always</td> </tr> <tr> <td><p><span class="term">details</span></p></td> <td>multipart/x-mixed-replace</td> </tr> </tbody> </table></div> <div class="variablelist"><table border="0" class="variablelist"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <tbody> <tr> <td><p><span class="term">name</span></p></td> <td>src_%u</td> </tr> <tr> <td><p><span class="term">direction</span></p></td> <td>source</td> </tr> <tr> <td><p><span class="term">presence</span></p></td> <td>sometimes</td> </tr> <tr> <td><p><span class="term">details</span></p></td> <td>ANY</td> </tr> </tbody> </table></div> </div> </div> </div> <div class="refsect1"> <a name="gst-plugins-good-plugins-multipartdemux.functions_details"></a><h2>Functions</h2> <p></p> </div> <div class="refsect1"> <a name="gst-plugins-good-plugins-multipartdemux.other_details"></a><h2>Types and Values</h2> <div class="refsect2"> <a name="GstMultipartDemux-struct"></a><h3>struct GstMultipartDemux</h3> <pre class="programlisting">struct GstMultipartDemux;</pre> <p>The opaque <a class="link" href="gst-plugins-good-plugins-multipartdemux.html#GstMultipartDemux"><span class="type">GstMultipartDemux</span></a> structure.</p> </div> </div> <div class="refsect1"> <a name="gst-plugins-good-plugins-multipartdemux.property-details"></a><h2>Property Details</h2> <div class="refsect2"> <a name="GstMultipartDemux--boundary"></a><h3>The <code class="literal">“boundary”</code> property</h3> <pre class="programlisting"> “boundary” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre> <p>The boundary string separating data, automatic if NULL.</p> <p>Flags: Read / Write / Construct</p> <p>Default value: NULL</p> </div> <hr> <div class="refsect2"> <a name="GstMultipartDemux--single-stream"></a><h3>The <code class="literal">“single-stream”</code> property</h3> <pre class="programlisting"> “single-stream” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre> <p>Assume that there is only one stream whose content-type will not change and emit no-more-pads as soon as the first boundary content is parsed, decoded, and pads are linked.</p> <p>Flags: Read / Write</p> <p>Default value: FALSE</p> </div> </div> <div class="refsect1"> <a name="gst-plugins-good-plugins-multipartdemux.see-also"></a><h2>See Also</h2> <p><a class="link" href="gst-plugins-good-plugins-multipartmux.html#GstMultipartMux"><span class="type">GstMultipartMux</span></a></p> </div> </div> <div class="footer"> <hr>Generated by GTK-Doc V1.24</div> </body> </html>