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<a href="#gst-plugins-base-plugins-decodebin3.description" class="shortcut">Description</a></span>
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<h2><span class="refentrytitle"><a name="gst-plugins-base-plugins-decodebin3.top_of_page"></a>decodebin3</span></h2>
<p>decodebin3</p>
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<td class="gallery_image" valign="top" align="right"></td>
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<div class="refsect1">
<a name="gst-plugins-base-plugins-decodebin3.description"></a><h2>Description</h2>
<p><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstBin.html#GstBin-struct"><span class="type">GstBin</span></a> that auto-magically constructs a decoding pipeline using available
decoders and demuxers via auto-plugging. The output is raw audio, video
or subtitle streams.</p>
<p>decodebin3 differs from the previous decodebin (decodebin2) in important ways:</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
supports publication and selection of stream information via
GstStreamCollection messages and <span class="type">GST_EVENT_SELECT_STREAM</span> events.
</li>
<li class="listitem">
dynamically switches stream connections internally, and
reuses decoder elements when stream selections change, so that in
the normal case it maintains 1 decoder of each type (video/audio/subtitle)
and only creates new elements when streams change and an existing decoder
is not capable of handling the new format.
</li>
<li class="listitem">
supports multiple input pads for the parallel decoding of auxilliary streams
not muxed with the primary stream.
</li>
<li class="listitem">
does not handle network stream buffering. decodebin3 expects that network stream
buffering is handled upstream, before data is passed to it.
</li>
</ul></div>
<p><span class="emphasis"><em>decodebin3 is still experimental API and a technology preview.
Its behaviour and exposed API is subject to change.</em></span></p>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.15.3.6.1"></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-base-plugins-plugin-playback.html#plugin-playback">playback</a>
</td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Edward Hervey <edward@centricular.com></td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Generic/Bin/Decoder</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.15.3.6.2"></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>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>sink_%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>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>audio_%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>sometimes</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>sometimes</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>text_%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>sometimes</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>video_%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>sometimes</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="gst-plugins-base-plugins-decodebin3.functions_details"></a><h2>Functions</h2>
<p></p>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-decodebin3.other_details"></a><h2>Types and Values</h2>
</div>
</div>
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