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>giostreamsrc: GStreamer Base 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 Base Plugins 1.0 Plugins Reference Manual"> 8<link rel="up" href="ch01.html" title="gst-plugins-base Elements"> 9<link rel="prev" href="gst-plugins-base-plugins-giostreamsink.html" title="giostreamsink"> 10<link rel="next" href="gst-plugins-base-plugins-glcolorbalance.html" title="glcolorbalance"> 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 width="100%" align="left" class="shortcuts"> 17<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span> 18 <a href="#gst-plugins-base-plugins-giostreamsrc.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span> 19 <a href="#gst-plugins-base-plugins-giostreamsrc.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_properties"> <span class="dim">|</span> 20 <a href="#gst-plugins-base-plugins-giostreamsrc.properties" class="shortcut">Properties</a></span> 21</td> 22<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td> 23<td><a accesskey="u" href="ch01.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> 24<td><a accesskey="p" href="gst-plugins-base-plugins-giostreamsink.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> 25<td><a accesskey="n" href="gst-plugins-base-plugins-glcolorbalance.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-base-plugins-giostreamsrc"></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-base-plugins-giostreamsrc.top_of_page"></a>giostreamsrc</span></h2> 32<p>giostreamsrc</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-base-plugins-giostreamsrc.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><tr> 45<td class="property_type"> 46<a href="/usr/share/gtk-doc/html/gio/GInputStream.html#GInputStream-struct"><span class="type">GInputStream</span></a> *</td> 47<td class="property_name"><a class="link" href="gst-plugins-base-plugins-giostreamsrc.html#GstGioStreamSrc--stream" title="The “stream” property">stream</a></td> 48<td class="property_flags">Read / Write</td> 49</tr></tbody> 50</table></div> 51</div> 52<a name="GstGioStreamSrc"></a><div class="refsect1"> 53<a name="gst-plugins-base-plugins-giostreamsrc.other"></a><h2>Types and Values</h2> 54<div class="informaltable"><table class="informaltable" width="100%" border="0"> 55<colgroup> 56<col width="150px" class="name"> 57<col class="description"> 58</colgroup> 59<tbody><tr> 60<td class="datatype_keyword">struct</td> 61<td class="function_name"><a class="link" href="gst-plugins-base-plugins-giostreamsrc.html#GstGioStreamSrc-struct" title="struct GstGioStreamSrc">GstGioStreamSrc</a></td> 62</tr></tbody> 63</table></div> 64</div> 65<div class="refsect1"> 66<a name="gst-plugins-base-plugins-giostreamsrc.object-hierarchy"></a><h2>Object Hierarchy</h2> 67<pre class="screen"> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a> 68 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a> 69 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstObject.html#GstObject-struct">GstObject</a> 70 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct">GstElement</a> 71 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-libs-1.0/GstBaseSrc.html#GstBaseSrc-struct">GstBaseSrc</a> 72 <span class="lineart">╰──</span> GstGioBaseSrc 73 <span class="lineart">╰──</span> GstGioStreamSrc 74</pre> 75</div> 76<div class="refsect1"> 77<a name="gst-plugins-base-plugins-giostreamsrc.description"></a><h2>Description</h2> 78<p>This plugin reads data from a custom GIO <a href="/usr/share/gtk-doc/html/gio/GInputStream.html#GInputStream-struct"><span class="type">GInputStream</span></a>.</p> 79<p>It can, for example, be used to read data from memory with a 80<a href="/usr/share/gtk-doc/html/gio/GMemoryInputStream.html#GMemoryInputStream-struct"><span class="type">GMemoryInputStream</span></a> or to read from a file with a 81<a href="/usr/share/gtk-doc/html/gio/GFileInputStream.html#GFileInputStream-struct"><span class="type">GFileInputStream</span></a>.</p> 82<div class="refsect3"> 83<a name="id-1.2.23.7.4"></a><h4>Example code</h4> 84<p>The following example reads data from a <a href="/usr/share/gtk-doc/html/gio/GMemoryInputStream.html#GMemoryInputStream-struct"><span class="type">GMemoryInputStream</span></a>.</p> 85<div class="informalexample"> 86 <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> 87 <tbody> 88 <tr> 89 <td class="listing_lines" align="right"><pre>1 902 913 924 935 946 957 968 979 9810 9911 10012 10113 10214 10315 10416 10517 10618 10719 10820 10921 11022</pre></td> 111 <td class="listing_code"><pre class="programlisting"><span class="gtkdoc ppc">#include <gst/gst.h></span> 112<span class="gtkdoc ppc">#include <gio/gio.h></span> 113 114<span class="gtkdoc opt">...</span> 115 116GstElement <span class="gtkdoc opt">*</span>src<span class="gtkdoc opt">;</span> 117GMemoryInputStream <span class="gtkdoc opt">*</span>stream<span class="gtkdoc opt">;</span> 118<span class="gtkdoc slc">// in_data will contain the data to send</span> 119guint8 <span class="gtkdoc opt">*</span>in_data<span class="gtkdoc opt">;</span> 120gint i<span class="gtkdoc opt">;</span> 121 122<span class="gtkdoc opt">...</span> 123in_data <span class="gtkdoc opt">=</span> <span class="function"><a href="/usr/share/gtk-doc/html/glib/glib-Memory-Allocation.html#g-new">g_new</a></span> <span class="gtkdoc opt">(</span>guint8<span class="gtkdoc opt">,</span> <span class="number">512</span><span class="gtkdoc opt">);</span> 124<span class="keyword">for</span> <span class="gtkdoc opt">(</span>i <span class="gtkdoc opt">=</span> <span class="number">0</span><span class="gtkdoc opt">;</span> i <span class="gtkdoc opt"><</span> <span class="number">512</span><span class="gtkdoc opt">;</span> i<span class="gtkdoc opt">++)</span> 125 in_data<span class="gtkdoc opt">[</span>i<span class="gtkdoc opt">] =</span> i <span class="gtkdoc opt">%</span> <span class="number">256</span><span class="gtkdoc opt">;</span> 126 127stream <span class="gtkdoc opt">=</span> <span class="function">G_MEMORY_INPUT_STREAM</span> <span class="gtkdoc opt">(</span><span class="function"><a href="/usr/share/gtk-doc/html/gio/GMemoryInputStream.html#g-memory-input-stream-new-from-data">g_memory_input_stream_new_from_data</a></span> <span class="gtkdoc opt">(</span>in_data<span class="gtkdoc opt">,</span> <span class="number">512</span><span class="gtkdoc opt">,</span> 128 <span class="gtkdoc opt">(</span>GDestroyNotify<span class="gtkdoc opt">)</span> g_free<span class="gtkdoc opt">));</span> 129src <span class="gtkdoc opt">=</span> <span class="function"><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElementFactory.html#gst-element-factory-make">gst_element_factory_make</a></span> <span class="gtkdoc opt">(</span><span class="string">"giostreamsrc"</span><span class="gtkdoc opt">,</span> <span class="string">"src"</span><span class="gtkdoc opt">);</span> 130<span class="function"><a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#g-object-set">g_object_set</a></span> <span class="gtkdoc opt">(</span><span class="function"><a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#G-OBJECT:CAPS">G_OBJECT</a></span> <span class="gtkdoc opt">(</span>src<span class="gtkdoc opt">),</span> <span class="string">"stream"</span><span class="gtkdoc opt">,</span> stream<span class="gtkdoc opt">,</span> NULL<span class="gtkdoc opt">);</span> 131 132<span class="gtkdoc opt">...</span></pre></td> 133 </tr> 134 </tbody> 135 </table> 136</div> 137 138<p></p> 139</div> 140<div class="refsynopsisdiv"> 141<h2>Synopsis</h2> 142<div class="refsect2"> 143<a name="id-1.2.23.7.5.1"></a><h3>Element Information</h3> 144<div class="variablelist"><table border="0" class="variablelist"> 145<colgroup> 146<col align="left" valign="top"> 147<col> 148</colgroup> 149<tbody> 150<tr> 151<td><p><span class="term">plugin</span></p></td> 152<td> 153 <a class="link" href="gst-plugins-base-plugins-plugin-gio.html#plugin-gio">gio</a> 154 </td> 155</tr> 156<tr> 157<td><p><span class="term">author</span></p></td> 158<td>Sebastian Dröge <sebastian.droege@collabora.co.uk></td> 159</tr> 160<tr> 161<td><p><span class="term">class</span></p></td> 162<td>Source</td> 163</tr> 164</tbody> 165</table></div> 166</div> 167<hr> 168<div class="refsect2"> 169<a name="id-1.2.23.7.5.2"></a><h3>Element Pads</h3> 170<div class="variablelist"><table border="0" class="variablelist"> 171<colgroup> 172<col align="left" valign="top"> 173<col> 174</colgroup> 175<tbody> 176<tr> 177<td><p><span class="term">name</span></p></td> 178<td>src</td> 179</tr> 180<tr> 181<td><p><span class="term">direction</span></p></td> 182<td>source</td> 183</tr> 184<tr> 185<td><p><span class="term">presence</span></p></td> 186<td>always</td> 187</tr> 188<tr> 189<td><p><span class="term">details</span></p></td> 190<td>ANY</td> 191</tr> 192</tbody> 193</table></div> 194</div> 195</div> 196</div> 197<div class="refsect1"> 198<a name="gst-plugins-base-plugins-giostreamsrc.functions_details"></a><h2>Functions</h2> 199<p></p> 200</div> 201<div class="refsect1"> 202<a name="gst-plugins-base-plugins-giostreamsrc.other_details"></a><h2>Types and Values</h2> 203<div class="refsect2"> 204<a name="GstGioStreamSrc-struct"></a><h3>struct GstGioStreamSrc</h3> 205<pre class="programlisting">struct GstGioStreamSrc;</pre> 206<p>Opaque data structure.</p> 207</div> 208</div> 209<div class="refsect1"> 210<a name="gst-plugins-base-plugins-giostreamsrc.property-details"></a><h2>Property Details</h2> 211<div class="refsect2"> 212<a name="GstGioStreamSrc--stream"></a><h3>The <code class="literal">“stream”</code> property</h3> 213<pre class="programlisting"> “stream” <a href="/usr/share/gtk-doc/html/gio/GInputStream.html#GInputStream-struct"><span class="type">GInputStream</span></a> *</pre> 214<p>Stream to read from.</p> 215<p>Flags: Read / Write</p> 216</div> 217</div> 218</div> 219<div class="footer"> 220<hr>Generated by GTK-Doc V1.28</div> 221</body> 222</html>
