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 | 
<a href="#id2576121" class="shortcut">Description</a>
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<a href="#id2590676" class="shortcut">Object Hierarchy</a>
 | 
<a href="#id2590628" class="shortcut">Properties</a></nobr></td></tr>
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<div class="refentry" lang="en">
<a name="gst-plugins-base-plugins-audioconvert"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2>
<a name="id2590717"></a><span class="refentrytitle">audioconvert</span>
</h2>
<p>audioconvert — Convert audio to different formats</p>
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<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<a name="GstAudioConvert"></a><pre class="synopsis">
<a href="gst-plugins-base-plugins-audioconvert.html#GstAudioConvert-struct">GstAudioConvert</a>;
</pre>
</div>
<div class="refsect1" lang="en">
<a name="id2590676"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
GObject
+----GstObject
+----GstElement
+----GstBaseTransform
+----GstAudioConvert
</pre>
</div>
<div class="refsect1" lang="en">
<a name="id2590628"></a><h2>Properties</h2>
<pre class="synopsis">
"<a href="gst-plugins-base-plugins-audioconvert.html#GstAudioConvert--dithering">dithering</a>" GstAudioConvertDithering : Read / Write
"<a href="gst-plugins-base-plugins-audioconvert.html#GstAudioConvert--noise-shaping">noise-shaping</a>" GstAudioConvertNoiseShaping : Read / Write
</pre>
</div>
<div class="refsect1" lang="en">
<a name="id2576121"></a><h2>Description</h2>
<p>
</p>
<div class="refsect2" lang="en">
<a name="id2588500"></a><p>
Audioconvert converts raw audio buffers between various possible formats.
It supports integer to float conversion, width/depth conversion,
signedness and endianness conversion.
</p>
<p>
Some format conversion are not carried out in an optimal way right now.
E.g. converting from double to float would cause a loss of precision.
</p>
<h3>Example launch line</h3>
<p>
</p>
<pre class="programlisting">
gst-launch -v -m audiotestsrc ! audioconvert ! audio/x-raw-int,channels=2,width=8,depth=8 ! level ! fakesink silent=TRUE
</pre>
<p>
This pipeline converts audio to 8-bit. The level element shows that
the output levels still match the one for a sine wave.
</p>
<p>
</p>
<pre class="programlisting">
gst-launch -v -m audiotestsrc ! audioconvert ! vorbisenc ! fakesink silent=TRUE
</pre>
<p>
The vorbis encoder takes float audio data instead of the integer data
generated by audiotestsrc.
</p>
</div>
<p>
</p>
<p>
Last reviewed on 2006-03-02 (0.10.4)</p>
<div class="refsect2" lang="en">
<a name="id2570340"></a><h3>Element Information</h3>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><span class="term">plugin</span></td>
<td>
<a href="gst-plugins-base-plugins-plugin-audioconvert.html#plugin-audioconvert">audioconvert</a>
</td>
</tr>
<tr>
<td><span class="term">author</span></td>
<td>Benjamin Otte <in7y118@public.uni-hamburg.de></td>
</tr>
<tr>
<td><span class="term">class</span></td>
<td>Filter/Converter/Audio</td>
</tr>
</tbody>
</table></div>
<h3>Element Pads</h3>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><span class="term">name</span></td>
<td>src</td>
</tr>
<tr>
<td><span class="term">direction</span></td>
<td>source</td>
</tr>
<tr>
<td><span class="term">presence</span></td>
<td>always</td>
</tr>
<tr>
<td><span class="term">details</span></td>
<td>audio/x-raw-float, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 8 ], endianness=(int){ 1234, 4321 }, width=(int)64; audio/x-raw-float, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 8 ], endianness=(int){ 1234, 4321 }, width=(int)32; audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 8 ], endianness=(int){ 1234, 4321 }, width=(int)32, depth=(int)[ 1, 32 ], signed=(boolean){ true, false }; audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 8 ], endianness=(int){ 1234, 4321 }, width=(int)24, depth=(int)[ 1, 24 ], signed=(boolean){ true, false }; audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 8 ], endianness=(int){ 1234, 4321 }, width=(int)16, depth=(int)[ 1, 16 ], signed=(boolean){ true, false }; audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 8 ], endianness=(int){ 1234, 4321 }, width=(int)8, depth=(int)[ 1, 8 ], signed=(boolean){ true, false }</td>
</tr>
</tbody>
</table></div>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><span class="term">name</span></td>
<td>sink</td>
</tr>
<tr>
<td><span class="term">direction</span></td>
<td>sink</td>
</tr>
<tr>
<td><span class="term">presence</span></td>
<td>always</td>
</tr>
<tr>
<td><span class="term">details</span></td>
<td>audio/x-raw-float, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 8 ], endianness=(int){ 1234, 4321 }, width=(int)64; audio/x-raw-float, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 8 ], endianness=(int){ 1234, 4321 }, width=(int)32; audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 8 ], endianness=(int){ 1234, 4321 }, width=(int)32, depth=(int)[ 1, 32 ], signed=(boolean){ true, false }; audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 8 ], endianness=(int){ 1234, 4321 }, width=(int)24, depth=(int)[ 1, 24 ], signed=(boolean){ true, false }; audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 8 ], endianness=(int){ 1234, 4321 }, width=(int)16, depth=(int)[ 1, 16 ], signed=(boolean){ true, false }; audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 8 ], endianness=(int){ 1234, 4321 }, width=(int)8, depth=(int)[ 1, 8 ], signed=(boolean){ true, false }</td>
</tr>
</tbody>
</table></div>
</div>
<p>
</p>
</div>
<div class="refsect1" lang="en">
<a name="id2585484"></a><h2>Details</h2>
<div class="refsect2" lang="en">
<a name="id2579906"></a><h3>
<a name="GstAudioConvert-struct"></a>GstAudioConvert</h3>
<a class="indexterm" name="id2579918"></a><pre class="programlisting">typedef struct _GstAudioConvert GstAudioConvert;</pre>
<p>
The audioconvert object structure.</p>
<p>
</p>
</div>
</div>
<div class="refsect1" lang="en">
<a name="id2579939"></a><h2>Property Details</h2>
<div class="refsect2" lang="en">
<a name="id2579950"></a><h3>
<a name="GstAudioConvert--dithering"></a>The "<code class="literal">dithering</code>" property</h3>
<a class="indexterm" name="id2579964"></a><pre class="programlisting"> "dithering" GstAudioConvertDithering : Read / Write</pre>
<p>Selects between different dithering methods.</p>
<p>Default value: Triangular dithering (default)</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2579989"></a><h3>
<a name="GstAudioConvert--noise-shaping"></a>The "<code class="literal">noise-shaping</code>" property</h3>
<a class="indexterm" name="id2580003"></a><pre class="programlisting"> "noise-shaping" GstAudioConvertNoiseShaping : Read / Write</pre>
<p>Selects between different noise shaping methods.</p>
<p>Default value: No noise shaping (default)</p>
</div>
</div>
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