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>webmmux: 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-wavparse.html" title="wavparse"> 10<link rel="next" href="gst-plugins-good-plugins-ximagesrc.html" title="ximagesrc"> 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-good-plugins-webmmux.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span> 19 <a href="#gst-plugins-good-plugins-webmmux.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_interfaces"> <span class="dim">|</span> 20 <a href="#gst-plugins-good-plugins-webmmux.implemented-interfaces" class="shortcut">Implemented Interfaces</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-good-plugins-wavparse.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> 25<td><a accesskey="n" href="gst-plugins-good-plugins-ximagesrc.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-webmmux"></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-webmmux.top_of_page"></a>webmmux</span></h2> 32<p>webmmux</p> 33</td> 34<td class="gallery_image" valign="top" align="right"></td> 35</tr></table></div> 36<a name="GstWebMMux"></a><div class="refsect1"> 37<a name="gst-plugins-good-plugins-webmmux.other"></a><h2>Types and Values</h2> 38<div class="informaltable"><table class="informaltable" width="100%" border="0"> 39<colgroup> 40<col width="150px" class="name"> 41<col class="description"> 42</colgroup> 43<tbody><tr> 44<td class="datatype_keyword">struct</td> 45<td class="function_name"><a class="link" href="gst-plugins-good-plugins-webmmux.html#GstWebMMux-struct" title="struct GstWebMMux">GstWebMMux</a></td> 46</tr></tbody> 47</table></div> 48</div> 49<div class="refsect1"> 50<a name="gst-plugins-good-plugins-webmmux.object-hierarchy"></a><h2>Object Hierarchy</h2> 51<pre class="screen"> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a> 52 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a> 53 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstObject.html#GstObject-struct">GstObject</a> 54 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct">GstElement</a> 55 <span class="lineart">╰──</span> <a class="link" href="gst-plugins-good-plugins-matroskamux.html#GstMatroskaMux">GstMatroskaMux</a> 56 <span class="lineart">╰──</span> GstWebMMux 57</pre> 58</div> 59<div class="refsect1"> 60<a name="gst-plugins-good-plugins-webmmux.implemented-interfaces"></a><h2>Implemented Interfaces</h2> 61<p> 62GstWebMMux implements 63 <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstTagSetter.html#GstTagSetter-struct">GstTagSetter</a> and <a href="/usr/share/gtk-doc/html/gstreamer-1.0/gstreamer-GstTocSetter.html#GstTocSetter">GstTocSetter</a>.</p> 64</div> 65<div class="refsect1"> 66<a name="gst-plugins-good-plugins-webmmux.description"></a><h2>Description</h2> 67<p>webmmux muxes VP8 video and Vorbis audio streams into a WebM file.</p> 68<div class="refsect2"> 69<a name="id-1.2.282.7.3"></a><h3>Example launch line</h3> 70<div class="informalexample"> 71 <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> 72 <tbody> 73 <tr> 74 <td class="listing_lines" align="right"><pre>1 752 763 774</pre></td> 78 <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> webmmux name<span class="gtkdoc opt">=</span>mux <span class="gtkdoc opt">!</span> filesink location<span class="gtkdoc opt">=</span>newfile<span class="gtkdoc opt">.</span>webm \ 79 uridecodebin uri<span class="gtkdoc opt">=</span>file<span class="gtkdoc opt">:</span><span class="gtkdoc slc">///path/to/somefile.ogv name=demux \</span> 80 demux<span class="gtkdoc opt">. !</span> videoconvert <span class="gtkdoc opt">!</span> vp8enc <span class="gtkdoc opt">!</span> queue <span class="gtkdoc opt">!</span> mux<span class="gtkdoc opt">.</span>video_0 \ 81 demux<span class="gtkdoc opt">. !</span> progressreport <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> audiorate <span class="gtkdoc opt">!</span> vorbisenc <span class="gtkdoc opt">!</span> queue <span class="gtkdoc opt">!</span> mux<span class="gtkdoc opt">.</span>audio_0</pre></td> 82 </tr> 83 </tbody> 84 </table> 85</div> 86 This pipeline re-encodes a video file of any format into a WebM file. 87<div class="informalexample"> 88 <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> 89 <tbody> 90 <tr> 91 <td class="listing_lines" align="right"><pre>1 922 933</pre></td> 94 <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> webmmux name<span class="gtkdoc opt">=</span>mux <span class="gtkdoc opt">!</span> filesink location<span class="gtkdoc opt">=</span>test<span class="gtkdoc opt">.</span>webm \ 95 videotestsrc num<span class="gtkdoc opt">-</span>buffers<span class="gtkdoc opt">=</span><span class="number">250</span> <span class="gtkdoc opt">!</span> video<span class="gtkdoc opt">/</span>x<span class="gtkdoc opt">-</span>raw<span class="gtkdoc opt">,</span>framerate<span class="gtkdoc opt">=</span><span class="number">25</span><span class="gtkdoc opt">/</span><span class="number">1</span> <span class="gtkdoc opt">!</span> videoconvert <span class="gtkdoc opt">!</span> vp8enc <span class="gtkdoc opt">!</span> queue <span class="gtkdoc opt">!</span> mux<span class="gtkdoc opt">.</span>video_0 \ 96 audiotestsrc samplesperbuffer<span class="gtkdoc opt">=</span><span class="number">44100</span> num<span class="gtkdoc opt">-</span>buffers<span class="gtkdoc opt">=</span><span class="number">10</span> <span class="gtkdoc opt">!</span> audio<span class="gtkdoc opt">/</span>x<span class="gtkdoc opt">-</span>raw<span class="gtkdoc opt">,</span>rate<span class="gtkdoc opt">=</span><span class="number">44100</span> <span class="gtkdoc opt">!</span> vorbisenc <span class="gtkdoc opt">!</span> queue <span class="gtkdoc opt">!</span> mux<span class="gtkdoc opt">.</span>audio_0</pre></td> 97 </tr> 98 </tbody> 99 </table> 100</div> 101 This pipeline muxes a test video and a sine wave into a WebM file. 102</div> 103<div class="refsynopsisdiv"> 104<h2>Synopsis</h2> 105<div class="refsect2"> 106<a name="id-1.2.282.7.4.1"></a><h3>Element Information</h3> 107<div class="variablelist"><table border="0" class="variablelist"> 108<colgroup> 109<col align="left" valign="top"> 110<col> 111</colgroup> 112<tbody> 113<tr> 114<td><p><span class="term">plugin</span></p></td> 115<td> 116 <a class="link" href="gst-plugins-good-plugins-plugin-matroska.html#plugin-matroska">matroska</a> 117 </td> 118</tr> 119<tr> 120<td><p><span class="term">author</span></p></td> 121<td>GStreamer maintainers <gstreamer-devel@lists.freedesktop.org></td> 122</tr> 123<tr> 124<td><p><span class="term">class</span></p></td> 125<td>Codec/Muxer</td> 126</tr> 127</tbody> 128</table></div> 129</div> 130<hr> 131<div class="refsect2"> 132<a name="id-1.2.282.7.4.2"></a><h3>Element Pads</h3> 133<div class="variablelist"><table border="0" class="variablelist"> 134<colgroup> 135<col align="left" valign="top"> 136<col> 137</colgroup> 138<tbody> 139<tr> 140<td><p><span class="term">name</span></p></td> 141<td>audio_%u</td> 142</tr> 143<tr> 144<td><p><span class="term">direction</span></p></td> 145<td>sink</td> 146</tr> 147<tr> 148<td><p><span class="term">presence</span></p></td> 149<td>request</td> 150</tr> 151<tr> 152<td><p><span class="term">details</span></p></td> 153<td>audio/x-vorbis, channels=(int)[ 1, 2147483647 ], rate=(int)[ 1, 2147483647 ]</td> 154</tr> 155<tr> 156<td><p><span class="term"></span></p></td> 157<td> audio/x-opus, channels=(int)[ 1, 2147483647 ], rate=(int)[ 1, 2147483647 ]</td> 158</tr> 159</tbody> 160</table></div> 161<div class="variablelist"><table border="0" class="variablelist"> 162<colgroup> 163<col align="left" valign="top"> 164<col> 165</colgroup> 166<tbody> 167<tr> 168<td><p><span class="term">name</span></p></td> 169<td>subtitle_%u</td> 170</tr> 171<tr> 172<td><p><span class="term">direction</span></p></td> 173<td>sink</td> 174</tr> 175<tr> 176<td><p><span class="term">presence</span></p></td> 177<td>request</td> 178</tr> 179<tr> 180<td><p><span class="term">details</span></p></td> 181<td>subtitle/x-kate</td> 182</tr> 183<tr> 184<td><p><span class="term"></span></p></td> 185<td> text/x-raw, format=(string)utf8</td> 186</tr> 187<tr> 188<td><p><span class="term"></span></p></td> 189<td> application/x-ssa</td> 190</tr> 191<tr> 192<td><p><span class="term"></span></p></td> 193<td> application/x-ass</td> 194</tr> 195<tr> 196<td><p><span class="term"></span></p></td> 197<td> application/x-usf</td> 198</tr> 199<tr> 200<td><p><span class="term"></span></p></td> 201<td> subpicture/x-dvd</td> 202</tr> 203<tr> 204<td><p><span class="term"></span></p></td> 205<td> application/x-subtitle-unknown</td> 206</tr> 207</tbody> 208</table></div> 209<div class="variablelist"><table border="0" class="variablelist"> 210<colgroup> 211<col align="left" valign="top"> 212<col> 213</colgroup> 214<tbody> 215<tr> 216<td><p><span class="term">name</span></p></td> 217<td>video_%u</td> 218</tr> 219<tr> 220<td><p><span class="term">direction</span></p></td> 221<td>sink</td> 222</tr> 223<tr> 224<td><p><span class="term">presence</span></p></td> 225<td>request</td> 226</tr> 227<tr> 228<td><p><span class="term">details</span></p></td> 229<td>video/x-vp8, width=(int)[ 16, 2147483647 ], height=(int)[ 16, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> 230</tr> 231<tr> 232<td><p><span class="term"></span></p></td> 233<td> video/x-vp9, width=(int)[ 16, 2147483647 ], height=(int)[ 16, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> 234</tr> 235<tr> 236<td><p><span class="term"></span></p></td> 237<td> video/x-av1, width=(int)[ 16, 2147483647 ], height=(int)[ 16, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> 238</tr> 239</tbody> 240</table></div> 241<div class="variablelist"><table border="0" class="variablelist"> 242<colgroup> 243<col align="left" valign="top"> 244<col> 245</colgroup> 246<tbody> 247<tr> 248<td><p><span class="term">name</span></p></td> 249<td>src</td> 250</tr> 251<tr> 252<td><p><span class="term">direction</span></p></td> 253<td>source</td> 254</tr> 255<tr> 256<td><p><span class="term">presence</span></p></td> 257<td>always</td> 258</tr> 259<tr> 260<td><p><span class="term">details</span></p></td> 261<td>video/webm</td> 262</tr> 263<tr> 264<td><p><span class="term"></span></p></td> 265<td> audio/webm</td> 266</tr> 267</tbody> 268</table></div> 269</div> 270</div> 271</div> 272<div class="refsect1"> 273<a name="gst-plugins-good-plugins-webmmux.functions_details"></a><h2>Functions</h2> 274<p></p> 275</div> 276<div class="refsect1"> 277<a name="gst-plugins-good-plugins-webmmux.other_details"></a><h2>Types and Values</h2> 278<div class="refsect2"> 279<a name="GstWebMMux-struct"></a><h3>struct GstWebMMux</h3> 280<pre class="programlisting">struct GstWebMMux;</pre> 281</div> 282</div> 283</div> 284<div class="footer"> 285<hr>Generated by GTK-Doc V1.28</div> 286</body> 287</html>
