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<a name="gst-plugins-good-plugins-interleave"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-interleave.top_of_page"></a>interleave</span></h2>
<p>interleave — Folds many mono channels into one interleaved audio stream</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-interleave.properties"></a><h2>Properties</h2>
<div class="informaltable"><table 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/gobject/gobject-Value-arrays.html#GValueArray"><span class="type">GValueArray</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-interleave.html#GstInterleave--channel-positions" title="The “channel-positions” property">channel-positions</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-interleave.html#GstInterleave--channel-positions-from-input" title="The “channel-positions-from-input” property">channel-positions-from-input</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<a name="GstInterleave"></a><div class="refsect1">
<a name="gst-plugins-good-plugins-interleave.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table 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="gst-plugins-good-plugins-interleave.html#GstInterleave-struct" title="struct GstInterleave">GstInterleave</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-interleave.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject">GObject</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstObject.html">GstObject</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html">GstElement</a>
<span class="lineart">╰──</span> GstInterleave
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-interleave.description"></a><h2>Description</h2>
<p>Merges separate mono inputs into one interleaved stream.</p>
<p>This element handles all raw floating point sample formats and all signed integer sample formats. The first
caps on one of the sinkpads will set the caps of the output so usually an audioconvert element should be
placed before every sinkpad of interleave.</p>
<p>It's possible to change the number of channels while the pipeline is running by adding or removing
some of the request pads but this will change the caps of the output buffers. Changing the input
caps is _not_ supported yet.</p>
<p>The channel number of every sinkpad in the out can be retrieved from the "channel" property of the pad.</p>
<div class="refsect2">
<a name="id-1.2.68.7.6"></a><h3>Example launch line</h3>
<div class="informalexample"><pre class="programlisting">
gst-launch-1.0 filesrc location=file.mp3 ! decodebin ! audioconvert ! "audio/x-raw,channels=2" ! deinterleave name=d interleave name=i ! audioconvert ! wavenc ! filesink location=test.wav d.src_0 ! queue ! audioconvert ! i.sink_1 d.src_1 ! queue ! audioconvert ! i.sink_0
</pre></div> Decodes and deinterleaves a Stereo MP3 file into separate channels and
then interleaves the channels again to a WAV file with the channel with the
channels exchanged.
<div class="informalexample"><pre class="programlisting">
gst-launch-1.0 interleave name=i ! audioconvert ! wavenc ! filesink location=file.wav filesrc location=file1.wav ! decodebin ! audioconvert ! "audio/x-raw,channels=1" ! queue ! i.sink_0 filesrc location=file2.wav ! decodebin ! audioconvert ! "audio/x-raw,channels=1" ! queue ! i.sink_1
</pre></div> Interleaves two Mono WAV files to a single Stereo WAV file.
</div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.68.7.7.1"></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-good-plugins-plugin-interleave.html#plugin-interleave">interleave</a>
</td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Andy Wingo <wingo at pobox.com>, Sebastian Dröge <slomo@circular-chaos.org></td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Filter/Converter/Audio</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.68.7.7.2"></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_%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/x-raw, rate=(int)[ 1, 2147483647 ], channels=(int)1, format=(string){ S8, U8, S16LE, S16BE, U16LE, U16BE, S24_32LE, S24_32BE, U24_32LE, U24_32BE, S32LE, S32BE, U32LE, U32BE, S24LE, S24BE, U24LE, U24BE, S20LE, S20BE, U20LE, U20BE, S18LE, S18BE, U18LE, U18BE, F32LE, F32BE, F64LE, F64BE }, layout=(string){ non-interleaved, interleaved }</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>audio/x-raw, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], format=(string){ S8, U8, S16LE, S16BE, U16LE, U16BE, S24_32LE, S24_32BE, U24_32LE, U24_32BE, S32LE, S32BE, U32LE, U32BE, S24LE, S24BE, U24LE, U24BE, S20LE, S20BE, U20LE, U20BE, S18LE, S18BE, U18LE, U18BE, F32LE, F32BE, F64LE, F64BE }, layout=(string)interleaved</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<p>
</p>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-interleave.functions_details"></a><h2>Functions</h2>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-interleave.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstInterleave-struct"></a><h3>struct GstInterleave</h3>
<pre class="programlisting">struct GstInterleave;</pre>
<p>
</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-interleave.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstInterleave--channel-positions"></a><h3>The <code class="literal">“channel-positions”</code> property</h3>
<pre class="programlisting"> “channel-positions” <a href="/usr/share/gtk-doc/html/gobject/gobject-Value-arrays.html#GValueArray"><span class="type">GValueArray</span></a> *</pre>
<p>Channel positions: This property controls the channel positions
that are used on the src caps. The number of elements should be
the same as the number of sink pads and the array should contain
a valid list of channel positions. The n-th element of the array
is the position of the n-th sink pad.</p>
<p>These channel positions will only be used if they're valid and the
number of elements is the same as the number of channels. If this
is not given a NONE layout will be used.</p>
<p>Flags: Read / Write</p>
</div>
<hr>
<div class="refsect2">
<a name="GstInterleave--channel-positions-from-input"></a><h3>The <code class="literal">“channel-positions-from-input”</code> property</h3>
<pre class="programlisting"> “channel-positions-from-input” <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Channel positions from input: If this property is set to <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> the channel
positions will be taken from the input caps if valid channel positions for
the output can be constructed from them. If this is set to <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> setting the
channel-positions property overwrites this property again.</p>
<p>Flags: Read / Write</p>
<p>Default value: TRUE</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-interleave.see-also"></a><h2>See Also</h2>
<p>deinterleave</p>
</div>
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