1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2<html> 3<head> 4<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 5<title>multipartdemux: GStreamer Good Plugins 1.0 Plugins Reference Manual</title> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="index.html" title="GStreamer Good Plugins 1.0 Plugins Reference Manual"> 8<link rel="up" href="ch01.html" title="gst-plugins-good Elements"> 9<link rel="prev" href="gst-plugins-good-plugins-multifilesrc.html" title="multifilesrc"> 10<link rel="next" href="gst-plugins-good-plugins-multipartmux.html" title="multipartmux"> 11<meta name="generator" content="GTK-Doc V1.28 (XML mode)"> 12<link rel="stylesheet" href="style.css" type="text/css"> 13</head> 14<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 15<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle"> 16<td 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href="gst-plugins-good-plugins-multipartmux.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> 26</tr></table> 27<div class="refentry"> 28<a name="gst-plugins-good-plugins-multipartdemux"></a><div class="titlepage"></div> 29<div class="refnamediv"><table width="100%"><tr> 30<td valign="top"> 31<h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-multipartdemux.top_of_page"></a>multipartdemux</span></h2> 32<p>multipartdemux</p> 33</td> 34<td class="gallery_image" valign="top" align="right"></td> 35</tr></table></div> 36<div class="refsect1"> 37<a name="gst-plugins-good-plugins-multipartdemux.properties"></a><h2>Properties</h2> 38<div class="informaltable"><table class="informaltable" border="0"> 39<colgroup> 40<col width="150px" class="properties_type"> 41<col width="300px" class="properties_name"> 42<col width="200px" class="properties_flags"> 43</colgroup> 44<tbody> 45<tr> 46<td class="property_type"> 47<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td> 48<td class="property_name"><a class="link" href="gst-plugins-good-plugins-multipartdemux.html#GstMultipartDemux--boundary" title="The “boundary” property">boundary</a></td> 49<td class="property_flags">Read / Write / Construct</td> 50</tr> 51<tr> 52<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td> 53<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> 54<td class="property_flags">Read / Write</td> 55</tr> 56</tbody> 57</table></div> 58</div> 59<a name="GstMultipartDemux"></a><div class="refsect1"> 60<a name="gst-plugins-good-plugins-multipartdemux.other"></a><h2>Types and Values</h2> 61<div class="informaltable"><table class="informaltable" width="100%" border="0"> 62<colgroup> 63<col width="150px" class="name"> 64<col class="description"> 65</colgroup> 66<tbody><tr> 67<td class="datatype_keyword">struct</td> 68<td class="function_name"><a class="link" href="gst-plugins-good-plugins-multipartdemux.html#GstMultipartDemux-struct" title="struct GstMultipartDemux">GstMultipartDemux</a></td> 69</tr></tbody> 70</table></div> 71</div> 72<div class="refsect1"> 73<a name="gst-plugins-good-plugins-multipartdemux.object-hierarchy"></a><h2>Object Hierarchy</h2> 74<pre class="screen"> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a> 75 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a> 76 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstObject.html#GstObject-struct">GstObject</a> 77 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct">GstElement</a> 78 <span class="lineart">╰──</span> GstMultipartDemux 79</pre> 80</div> 81<div class="refsect1"> 82<a name="gst-plugins-good-plugins-multipartdemux.description"></a><h2>Description</h2> 83<p>MultipartDemux uses the Content-type field of incoming buffers to demux and 84push data to dynamic source pads. Most of the time multipart streams are 85sequential JPEG frames generated from a live source such as a network source 86or a camera.</p> 87<p>The output buffers of the multipartdemux typically have no timestamps and are 88usually played as fast as possible (at the rate that the source provides the 89data).</p> 90<p>the content in multipart files is separated with a boundary string that can 91be 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 92otherwise it will be autodetected.</p> 93<div class="refsect2"> 94<a name="id-1.2.100.7.5"></a><h3>Sample pipelines</h3> 95<div class="informalexample"> 96 <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> 97 <tbody> 98 <tr> 99 <td class="listing_lines" align="right"><pre>1</pre></td> 100 <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> 101 </tr> 102 </tbody> 103 </table> 104</div> 105 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> 106containing JPEG frames. 107</div> 108<div class="refsynopsisdiv"> 109<h2>Synopsis</h2> 110<div class="refsect2"> 111<a name="id-1.2.100.7.6.1"></a><h3>Element Information</h3> 112<div class="variablelist"><table border="0" class="variablelist"> 113<colgroup> 114<col align="left" valign="top"> 115<col> 116</colgroup> 117<tbody> 118<tr> 119<td><p><span class="term">plugin</span></p></td> 120<td> 121 <a class="link" href="gst-plugins-good-plugins-plugin-multipart.html#plugin-multipart">multipart</a> 122 </td> 123</tr> 124<tr> 125<td><p><span class="term">author</span></p></td> 126<td>Wim Taymans <wim.taymans@gmail.com>, Sjoerd Simons <sjoerd@luon.net></td> 127</tr> 128<tr> 129<td><p><span class="term">class</span></p></td> 130<td>Codec/Demuxer</td> 131</tr> 132</tbody> 133</table></div> 134</div> 135<hr> 136<div class="refsect2"> 137<a name="id-1.2.100.7.6.2"></a><h3>Element Pads</h3> 138<div class="variablelist"><table border="0" class="variablelist"> 139<colgroup> 140<col align="left" valign="top"> 141<col> 142</colgroup> 143<tbody> 144<tr> 145<td><p><span class="term">name</span></p></td> 146<td>sink</td> 147</tr> 148<tr> 149<td><p><span class="term">direction</span></p></td> 150<td>sink</td> 151</tr> 152<tr> 153<td><p><span class="term">presence</span></p></td> 154<td>always</td> 155</tr> 156<tr> 157<td><p><span class="term">details</span></p></td> 158<td>multipart/x-mixed-replace</td> 159</tr> 160</tbody> 161</table></div> 162<div class="variablelist"><table border="0" class="variablelist"> 163<colgroup> 164<col align="left" valign="top"> 165<col> 166</colgroup> 167<tbody> 168<tr> 169<td><p><span class="term">name</span></p></td> 170<td>src_%u</td> 171</tr> 172<tr> 173<td><p><span class="term">direction</span></p></td> 174<td>source</td> 175</tr> 176<tr> 177<td><p><span class="term">presence</span></p></td> 178<td>sometimes</td> 179</tr> 180<tr> 181<td><p><span class="term">details</span></p></td> 182<td>ANY</td> 183</tr> 184</tbody> 185</table></div> 186</div> 187</div> 188</div> 189<div class="refsect1"> 190<a name="gst-plugins-good-plugins-multipartdemux.functions_details"></a><h2>Functions</h2> 191<p></p> 192</div> 193<div class="refsect1"> 194<a name="gst-plugins-good-plugins-multipartdemux.other_details"></a><h2>Types and Values</h2> 195<div class="refsect2"> 196<a name="GstMultipartDemux-struct"></a><h3>struct GstMultipartDemux</h3> 197<pre class="programlisting">struct GstMultipartDemux;</pre> 198<p>The opaque <a class="link" href="gst-plugins-good-plugins-multipartdemux.html#GstMultipartDemux"><span class="type">GstMultipartDemux</span></a> structure.</p> 199</div> 200</div> 201<div class="refsect1"> 202<a name="gst-plugins-good-plugins-multipartdemux.property-details"></a><h2>Property Details</h2> 203<div class="refsect2"> 204<a name="GstMultipartDemux--boundary"></a><h3>The <code class="literal">“boundary”</code> property</h3> 205<pre class="programlisting"> “boundary” <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre> 206<p>The boundary string separating data, automatic if NULL.</p> 207<p>Flags: Read / Write / Construct</p> 208<p>Default value: NULL</p> 209</div> 210<hr> 211<div class="refsect2"> 212<a name="GstMultipartDemux--single-stream"></a><h3>The <code class="literal">“single-stream”</code> property</h3> 213<pre class="programlisting"> “single-stream” <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre> 214<p>Assume that there is only one stream whose content-type will 215not change and emit no-more-pads as soon as the first boundary 216content is parsed, decoded, and pads are linked.</p> 217<p>Flags: Read / Write</p> 218<p>Default value: FALSE</p> 219</div> 220</div> 221<div class="refsect1"> 222<a name="gst-plugins-good-plugins-multipartdemux.see-also"></a><h2>See Also</h2> 223<p><a class="link" href="gst-plugins-good-plugins-multipartmux.html#GstMultipartMux"><span class="type">GstMultipartMux</span></a></p> 224</div> 225</div> 226<div class="footer"> 227<hr>Generated by GTK-Doc V1.28</div> 228</body> 229</html>
