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| <a name="gst-plugins-bad-plugins-mplex"></a><div class="titlepage"></div> |
| <div class="refnamediv"><table width="100%"><tr> |
| <td valign="top"> |
| <h2><span class="refentrytitle"><a name="gst-plugins-bad-plugins-mplex.top_of_page"></a>mplex</span></h2> |
| <p>mplex</p> |
| </td> |
| <td class="gallery_image" valign="top" align="right"></td> |
| </tr></table></div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-plugins-mplex.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="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-bad-plugins-mplex.html#GstMplex--bufsize" title="The “bufsize” property">bufsize</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><span class="type">GstMplexFormat</span></td> |
| <td class="property_name"><a class="link" href="gst-plugins-bad-plugins-mplex.html#GstMplex--format" title="The “format” property">format</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-bad-plugins-mplex.html#GstMplex--mux-bitrate" title="The “mux-bitrate” property">mux-bitrate</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-bad-plugins-mplex.html#GstMplex--packets-per-pack" title="The “packets-per-pack” property">packets-per-pack</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-bad-plugins-mplex.html#GstMplex--sector-size" title="The “sector-size” property">sector-size</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-bad-plugins-mplex.html#GstMplex--system-headers" title="The “system-headers” property">system-headers</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-bad-plugins-mplex.html#GstMplex--vbr" title="The “vbr” property">vbr</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <a name="GstMplex"></a><div class="refsect1"> |
| <a name="gst-plugins-bad-plugins-mplex.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"> </td> |
| <td class="function_name"><a class="link" href="gst-plugins-bad-plugins-mplex.html#GstMplex-struct" title="GstMplex">GstMplex</a></td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-plugins-mplex.object-hierarchy"></a><h2>Object Hierarchy</h2> |
| <pre class="screen"> <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct">GObject</a> |
| <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a> |
| <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstObject.html#GstObject-struct">GstObject</a> |
| <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstElement.html#GstElement-struct">GstElement</a> |
| <span class="lineart">╰──</span> GstMplex |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-plugins-mplex.description"></a><h2>Description</h2> |
| <p>This element is an audio/video multiplexer for MPEG-1/2 video streams |
| and (un)compressed audio streams such as AC3, MPEG layer I/II/III. |
| It is based on the <a class="ulink" href="http://mjpeg.sourceforge.net/" target="_top">mjpegtools</a> library. |
| Documentation on creating MPEG videos in general can be found in the</p> |
| <a class="ulink" href="https://sourceforge.net/docman/display_doc.php?docid=3456&group_id=5776" target="_top">MJPEG Howto</a><p>and the man-page of the mplex tool documents the properties of this element, |
| which are shared with the mplex tool.</p> |
| <div class="refsect2"> |
| <a name="id-1.2.99.7.5"></a><h3>Example pipeline</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> <span class="gtkdoc opt">-</span>v videotestsrc num<span class="gtkdoc opt">-</span>buffers<span class="gtkdoc opt">=</span><span class="number">1000</span> <span class="gtkdoc opt">!</span> mpeg2enc <span class="gtkdoc opt">!</span> mplex <span class="gtkdoc opt">!</span> filesink location<span class="gtkdoc opt">=</span>videotestsrc<span class="gtkdoc opt">.</span>mpg</pre></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| This example pipeline will encode a test video source to an |
| MPEG1 elementary stream and multiplexes this to an MPEG system stream. |
| <p> |
| If several streams are being multiplexed, there should (as usual) be |
| a queue in each stream, and due to mplex' buffering the capacities of these |
| may have to be set to a few times the default settings to prevent the |
| pipeline stalling. |
| </p> |
| </div> |
| <div class="refsynopsisdiv"> |
| <h2>Synopsis</h2> |
| <div class="refsect2"> |
| <a name="id-1.2.99.7.6.1"></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-bad-plugins-plugin-mplex.html#plugin-mplex">mplex</a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term">author</span></p></td> |
| <td>Andrew Stevens <andrew.stevens@nexgo.de> |
| Ronald Bultje <rbultje@ronald.bitfreak.net> |
| Mark Nauwelaerts <mnauw@users.sourceforge.net></td> |
| </tr> |
| <tr> |
| <td><p><span class="term">class</span></p></td> |
| <td>Codec/Muxer</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="id-1.2.99.7.6.2"></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>audio_%u</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>request</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">details</span></p></td> |
| <td>audio/mpeg, mpegversion=(int)1, layer=(int)[ 1, 3 ], channels=(int)[ 1, 8 ], rate=(int)[ 8000, 96000 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> audio/x-ac3, channels=(int)[ 1, 8 ], rate=(int)[ 8000, 96000 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> audio/x-dts</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> audio/x-raw, format=(string){ S16BE, S20BE, S24BE }, rate=(int){ 48000, 96000 }, channels=(int)[ 1, 6 ]</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>video_%u</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>request</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">details</span></p></td> |
| <td>video/mpeg, mpegversion=(int){ 1, 2 }, systemstream=(boolean)false, width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</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</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>always</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">details</span></p></td> |
| <td>video/mpeg, systemstream=(boolean)true</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-plugins-mplex.functions_details"></a><h2>Functions</h2> |
| <p></p> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-plugins-mplex.other_details"></a><h2>Types and Values</h2> |
| <div class="refsect2"> |
| <a name="GstMplex-struct"></a><h3>GstMplex</h3> |
| <pre class="programlisting">typedef struct _GstMplex GstMplex;</pre> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-plugins-mplex.property-details"></a><h2>Property Details</h2> |
| <div class="refsect2"> |
| <a name="GstMplex--bufsize"></a><h3>The <code class="literal">“bufsize”</code> property</h3> |
| <pre class="programlisting"> “bufsize” <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a></pre> |
| <p>Target decoders video buffer size (kB) [default determined by format if not explicitly set].</p> |
| <p>Flags: Read / Write</p> |
| <p>Allowed values: [20,4000]</p> |
| <p>Default value: 46</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstMplex--format"></a><h3>The <code class="literal">“format”</code> property</h3> |
| <pre class="programlisting"> “format” <span class="type">GstMplexFormat</span></pre> |
| <p>Encoding profile format.</p> |
| <p>Flags: Read / Write</p> |
| <p>Default value: DVD MPEG-2</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstMplex--mux-bitrate"></a><h3>The <code class="literal">“mux-bitrate”</code> property</h3> |
| <pre class="programlisting"> “mux-bitrate” <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a></pre> |
| <p>Bitrate of output stream in kbps (0 = autodetect).</p> |
| <p>Flags: Read / Write</p> |
| <p>Allowed values: [0,15360]</p> |
| <p>Default value: 0</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstMplex--packets-per-pack"></a><h3>The <code class="literal">“packets-per-pack”</code> property</h3> |
| <pre class="programlisting"> “packets-per-pack” <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a></pre> |
| <p>Number of packets per pack for generic formats.</p> |
| <p>Flags: Read / Write</p> |
| <p>Allowed values: [1,100]</p> |
| <p>Default value: 1</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstMplex--sector-size"></a><h3>The <code class="literal">“sector-size”</code> property</h3> |
| <pre class="programlisting"> “sector-size” <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a></pre> |
| <p>Specify sector size in bytes for generic formats.</p> |
| <p>Flags: Read / Write</p> |
| <p>Allowed values: [256,16384]</p> |
| <p>Default value: 2048</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstMplex--system-headers"></a><h3>The <code class="literal">“system-headers”</code> property</h3> |
| <pre class="programlisting"> “system-headers” <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre> |
| <p>Create system header in every pack for generic formats.</p> |
| <p>Flags: Read / Write</p> |
| <p>Default value: FALSE</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstMplex--vbr"></a><h3>The <code class="literal">“vbr”</code> property</h3> |
| <pre class="programlisting"> “vbr” <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre> |
| <p>Whether the input video stream is variable bitrate.</p> |
| <p>Flags: Read / Write</p> |
| <p>Default value: FALSE</p> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-bad-plugins-mplex.see-also"></a><h2>See Also</h2> |
| <p>mpeg2enc</p> |
| </div> |
| </div> |
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