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| <a name="gstreamer-plugins-tee"></a><div class="titlepage"></div> |
| <div class="refnamediv"><table width="100%"><tr> |
| <td valign="top"> |
| <h2><span class="refentrytitle"><a name="gstreamer-plugins-tee.top_of_page"></a>tee</span></h2> |
| <p>tee</p> |
| </td> |
| <td class="gallery_image" valign="top" align="right"></td> |
| </tr></table></div> |
| <div class="refsect1"> |
| <a name="gstreamer-plugins-tee.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="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html"><span class="type">GstPad</span></a> *</td> |
| <td class="property_name"><a class="link" href="gstreamer-plugins-tee.html#GstTee--alloc-pad" title="The “alloc-pad” property">alloc-pad</a></td> |
| <td class="property_flags">Read / Write</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="gstreamer-plugins-tee.html#GstTee--has-chain" title="The “has-chain” property">has-chain</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#gchar"><span class="type">gchar</span></a> *</td> |
| <td class="property_name"><a class="link" href="gstreamer-plugins-tee.html#GstTee--last-message" title="The “last-message” property">last-message</a></td> |
| <td class="property_flags">Read</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td> |
| <td class="property_name"><a class="link" href="gstreamer-plugins-tee.html#GstTee--num-src-pads" title="The “num-src-pads” property">num-src-pads</a></td> |
| <td class="property_flags">Read</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a class="link" href="gstreamer-plugins-tee.html#GstTeePullMode" title="enum GstTeePullMode"><span class="type">GstTeePullMode</span></a></td> |
| <td class="property_name"><a class="link" href="gstreamer-plugins-tee.html#GstTee--pull-mode" title="The “pull-mode” property">pull-mode</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="gstreamer-plugins-tee.html#GstTee--silent" title="The “silent” property">silent</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="gstreamer-plugins-tee.html#GstTee--allow-not-linked" title="The “allow-not-linked” property">allow-not-linked</a></td> |
| <td class="property_flags">Read / Write / Construct</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <a name="GstTee"></a><div class="refsect1"> |
| <a name="gstreamer-plugins-tee.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="gstreamer-plugins-tee.html#GstTee-struct" title="struct GstTee">GstTee</a></td> |
| </tr> |
| <tr> |
| <td class="datatype_keyword">enum</td> |
| <td class="function_name"><a class="link" href="gstreamer-plugins-tee.html#GstTeePullMode" title="enum GstTeePullMode">GstTeePullMode</a></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="gstreamer-plugins-tee.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> GstTee |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gstreamer-plugins-tee.description"></a><h2>Description</h2> |
| <p>Split data to multiple pads. Branching the data flow is useful when e.g. |
| capturing a video where the video is shown on the screen and also encoded and |
| written to a file. Another example is playing music and hooking up a |
| visualisation module.</p> |
| <p>One needs to use separate queue elements (or a multiqueue) in each branch to |
| provide separate threads for each branch. Otherwise a blocked dataflow in one |
| branch would stall the other branches.</p> |
| <div class="refsect2"> |
| <a name="id-1.2.19.7.4"></a><h3>Example launch line</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>song<span class="gtkdoc opt">.</span>ogg <span class="gtkdoc opt">!</span> decodebin <span class="gtkdoc opt">!</span> tee name<span class="gtkdoc opt">=</span>t <span class="gtkdoc opt">!</span> queue <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> audioresample <span class="gtkdoc opt">!</span> autoaudiosink t<span class="gtkdoc opt">. !</span> queue <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> goom <span class="gtkdoc opt">!</span> videoconvert <span class="gtkdoc opt">!</span> autovideosink</pre></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| Play song.ogg audio file which must be in the current working directory |
| and render visualisations using the goom element (this can be easier done |
| using the playbin element, this is just an example pipeline). |
| </div> |
| <div class="refsynopsisdiv"> |
| <h2>Synopsis</h2> |
| <div class="refsect2"> |
| <a name="id-1.2.19.7.5.1"></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="gstreamer-plugins-plugin-coreelements.html#plugin-coreelements">coreelements</a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term">author</span></p></td> |
| <td>Erik Walthinsen <omega@cse.ogi.edu>, Wim Taymans <wim@fluendo.com></td> |
| </tr> |
| <tr> |
| <td><p><span class="term">class</span></p></td> |
| <td>Generic</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="id-1.2.19.7.5.2"></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>ANY</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>request</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="gstreamer-plugins-tee.functions_details"></a><h2>Functions</h2> |
| <p></p> |
| </div> |
| <div class="refsect1"> |
| <a name="gstreamer-plugins-tee.other_details"></a><h2>Types and Values</h2> |
| <div class="refsect2"> |
| <a name="GstTee-struct"></a><h3>struct GstTee</h3> |
| <pre class="programlisting">struct GstTee;</pre> |
| <p>Opaque <a class="link" href="gstreamer-plugins-tee.html#GstTee"><span class="type">GstTee</span></a> data structure.</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstTeePullMode"></a><h3>enum GstTeePullMode</h3> |
| <p>The different ways that tee can behave in pull mode. <em class="parameter"><code>TEE_PULL_MODE_NEVER</code></em> |
| |
| disables pull mode.</p> |
| <div class="refsect3"> |
| <a name="id-1.2.19.9.3.4"></a><h4>Members</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="300px" class="enum_members_name"> |
| <col class="enum_members_description"> |
| <col width="200px" class="enum_members_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-TEE-PULL-MODE-NEVER:CAPS"></a>GST_TEE_PULL_MODE_NEVER</p></td> |
| <td class="enum_member_description"> |
| <p>Never activate in pull mode.</p> |
| </td> |
| <td class="enum_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-TEE-PULL-MODE-SINGLE:CAPS"></a>GST_TEE_PULL_MODE_SINGLE</p></td> |
| <td class="enum_member_description"> |
| <p>Only one src pad can be active in pull mode.</p> |
| </td> |
| <td class="enum_member_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gstreamer-plugins-tee.property-details"></a><h2>Property Details</h2> |
| <div class="refsect2"> |
| <a name="GstTee--alloc-pad"></a><h3>The <code class="literal">“alloc-pad”</code> property</h3> |
| <pre class="programlisting"> “alloc-pad” <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html"><span class="type">GstPad</span></a> *</pre> |
| <p>The pad ALLOCATION queries will be proxied to (unused).</p> |
| <p>Flags: Read / Write</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstTee--has-chain"></a><h3>The <code class="literal">“has-chain”</code> property</h3> |
| <pre class="programlisting"> “has-chain” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre> |
| <p>If the element can operate in push mode.</p> |
| <p>Flags: Read / Write / Construct</p> |
| <p>Default value: TRUE</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstTee--last-message"></a><h3>The <code class="literal">“last-message”</code> property</h3> |
| <pre class="programlisting"> “last-message” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre> |
| <p>The message describing current status.</p> |
| <p>Flags: Read</p> |
| <p>Default value: NULL</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstTee--num-src-pads"></a><h3>The <code class="literal">“num-src-pads”</code> property</h3> |
| <pre class="programlisting"> “num-src-pads” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre> |
| <p>The number of source pads.</p> |
| <p>Flags: Read</p> |
| <p>Allowed values: >= 0</p> |
| <p>Default value: 0</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstTee--pull-mode"></a><h3>The <code class="literal">“pull-mode”</code> property</h3> |
| <pre class="programlisting"> “pull-mode” <a class="link" href="gstreamer-plugins-tee.html#GstTeePullMode" title="enum GstTeePullMode"><span class="type">GstTeePullMode</span></a></pre> |
| <p>Behavior of tee in pull mode.</p> |
| <p>Flags: Read / Write / Construct</p> |
| <p>Default value: Never activate in pull mode</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstTee--silent"></a><h3>The <code class="literal">“silent”</code> property</h3> |
| <pre class="programlisting"> “silent” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre> |
| <p>Don't produce last_message events.</p> |
| <p>Flags: Read / Write / Construct</p> |
| <p>Default value: TRUE</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstTee--allow-not-linked"></a><h3>The <code class="literal">“allow-not-linked”</code> property</h3> |
| <pre class="programlisting"> “allow-not-linked” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre> |
| <p>This property makes sink pad return GST_FLOW_OK even if there are no |
| source pads or any of them is linked.</p> |
| <p>This is useful to avoid errors when you have a dynamic pipeline and during |
| a reconnection you can have all the pads unlinked or removed.</p> |
| <p>Flags: Read / Write / Construct</p> |
| <p>Default value: FALSE</p> |
| <p class="since">Since: 1.6</p> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gstreamer-plugins-tee.see-also"></a><h2>See Also</h2> |
| <p><a class="link" href="gstreamer-plugins-identity.html#GstIdentity"><span class="type">GstIdentity</span></a></p> |
| </div> |
| </div> |
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