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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
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<title>GstAudioQuantize: GStreamer Base Plugins 1.0 Library Reference Manual</title>
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<link rel="home" href="index.html" title="GStreamer Base Plugins 1.0 Library Reference Manual">
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<a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span> 
                  <a href="#gst-plugins-base-libs-GstAudioQuantize.description" class="shortcut">Description</a></span>
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<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
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<div class="refentry">
<a name="gst-plugins-base-libs-GstAudioQuantize"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-base-libs-GstAudioQuantize.top_of_page"></a>GstAudioQuantize</span></h2>
<p>GstAudioQuantize</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gst-plugins-base-libs-GstAudioQuantize.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gst-plugins-base-libs-GstAudioQuantize.html#gst-audio-quantize-free" title="gst_audio_quantize_free ()">gst_audio_quantize_free</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="gst-plugins-base-libs-GstAudioQuantize.html#GstAudioQuantize" title="GstAudioQuantize"><span class="returnvalue">GstAudioQuantize</span></a> *
</td>
<td class="function_name">
<a class="link" href="gst-plugins-base-libs-GstAudioQuantize.html#gst-audio-quantize-new" title="gst_audio_quantize_new ()">gst_audio_quantize_new</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gst-plugins-base-libs-GstAudioQuantize.html#gst-audio-quantize-samples" title="gst_audio_quantize_samples ()">gst_audio_quantize_samples</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-libs-GstAudioQuantize.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-base-libs-GstAudioQuantize.html#GstAudioQuantize" title="GstAudioQuantize">GstAudioQuantize</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="gst-plugins-base-libs-GstAudioQuantize.html#GstAudioQuantizeFlags" title="enum GstAudioQuantizeFlags">GstAudioQuantizeFlags</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="gst-plugins-base-libs-GstAudioQuantize.html#GstAudioDitherMethod" title="enum GstAudioDitherMethod">GstAudioDitherMethod</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="gst-plugins-base-libs-GstAudioQuantize.html#GstAudioNoiseShapingMethod" title="enum GstAudioNoiseShapingMethod">GstAudioNoiseShapingMethod</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-libs-GstAudioQuantize.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;gst/audio/audio.h&gt;
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-base-libs-GstAudioQuantize.description"></a><h2>Description</h2>
</div>
<div class="refsect1">
<a name="gst-plugins-base-libs-GstAudioQuantize.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gst-audio-quantize-free"></a><h3>gst_audio_quantize_free ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_audio_quantize_free (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-GstAudioQuantize.html#GstAudioQuantize" title="GstAudioQuantize"><span class="type">GstAudioQuantize</span></a> *quant</code></em>);</pre>
<p>Free a <a class="link" href="gst-plugins-base-libs-GstAudioQuantize.html#GstAudioQuantize" title="GstAudioQuantize"><span class="type">GstAudioQuantize</span></a>.</p>
<div class="refsect3">
<a name="id-1.2.6.16.7.2.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>quant</p></td>
<td class="parameter_description"><p>a <a class="link" href="gst-plugins-base-libs-GstAudioQuantize.html#GstAudioQuantize" title="GstAudioQuantize"><span class="type">GstAudioQuantize</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-audio-quantize-new"></a><h3>gst_audio_quantize_new ()</h3>
<pre class="programlisting"><a class="link" href="gst-plugins-base-libs-GstAudioQuantize.html#GstAudioQuantize" title="GstAudioQuantize"><span class="returnvalue">GstAudioQuantize</span></a> *
gst_audio_quantize_new (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-GstAudioQuantize.html#GstAudioDitherMethod" title="enum GstAudioDitherMethod"><span class="type">GstAudioDitherMethod</span></a> dither</code></em>,
                        <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-GstAudioQuantize.html#GstAudioNoiseShapingMethod" title="enum GstAudioNoiseShapingMethod"><span class="type">GstAudioNoiseShapingMethod</span></a> ns</code></em>,
                        <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-GstAudioQuantize.html#GstAudioQuantizeFlags" title="enum GstAudioQuantizeFlags"><span class="type">GstAudioQuantizeFlags</span></a> flags</code></em>,
                        <em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstaudio.html#GstAudioFormat" title="enum GstAudioFormat"><span class="type">GstAudioFormat</span></a> format</code></em>,
                        <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> channels</code></em>,
                        <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> quantizer</code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="gst-audio-quantize-samples"></a><h3>gst_audio_quantize_samples ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_audio_quantize_samples (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-GstAudioQuantize.html#GstAudioQuantize" title="GstAudioQuantize"><span class="type">GstAudioQuantize</span></a> *quant</code></em>,
                            <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> in[]</code></em>,
                            <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> out[]</code></em>,
                            <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> samples</code></em>);</pre>
<p>Perform quantization on <em class="parameter"><code>samples</code></em>
 in <em class="parameter"><code>in</code></em>
 and write the result to <em class="parameter"><code>out</code></em>
.</p>
<p>In case the samples are interleaved, <em class="parameter"><code>in</code></em>
 and <em class="parameter"><code>out</code></em>
 must point to an
array with a single element pointing to a block of interleaved samples.</p>
<p>If non-interleaved samples are used, <em class="parameter"><code>in</code></em>
 and <em class="parameter"><code>out</code></em>
 must point to an
array with pointers to memory blocks, one for each channel.</p>
<p><em class="parameter"><code>in</code></em>
 and <em class="parameter"><code>out</code></em>
 may point to the same memory location, in which case samples will be
modified in-place.</p>
<div class="refsect3">
<a name="id-1.2.6.16.7.4.8"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>quant</p></td>
<td class="parameter_description"><p>a <a class="link" href="gst-plugins-base-libs-GstAudioQuantize.html#GstAudioQuantize" title="GstAudioQuantize"><span class="type">GstAudioQuantize</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>in</p></td>
<td class="parameter_description"><p>input samples</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>out</p></td>
<td class="parameter_description"><p>output samples</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>samples</p></td>
<td class="parameter_description"><p>number of samples</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-libs-GstAudioQuantize.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstAudioQuantize"></a><h3>GstAudioQuantize</h3>
<pre class="programlisting">typedef struct _GstAudioQuantize GstAudioQuantize;</pre>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioQuantizeFlags"></a><h3>enum GstAudioQuantizeFlags</h3>
<p>Extra flags that can be passed to <a class="link" href="gst-plugins-base-libs-GstAudioQuantize.html#gst-audio-quantize-new" title="gst_audio_quantize_new ()"><code class="function">gst_audio_quantize_new()</code></a></p>
<div class="refsect3">
<a name="id-1.2.6.16.8.3.4"></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-AUDIO-QUANTIZE-FLAG-NONE:CAPS"></a>GST_AUDIO_QUANTIZE_FLAG_NONE</p></td>
<td class="enum_member_description">
<p>no flags</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-QUANTIZE-FLAG-NON-INTERLEAVED:CAPS"></a>GST_AUDIO_QUANTIZE_FLAG_NON_INTERLEAVED</p></td>
<td class="enum_member_description">
<p>samples are non-interleaved</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioDitherMethod"></a><h3>enum GstAudioDitherMethod</h3>
<p>Set of available dithering methods.</p>
<div class="refsect3">
<a name="id-1.2.6.16.8.4.4"></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-AUDIO-DITHER-NONE:CAPS"></a>GST_AUDIO_DITHER_NONE</p></td>
<td class="enum_member_description">
<p>No dithering</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-DITHER-RPDF:CAPS"></a>GST_AUDIO_DITHER_RPDF</p></td>
<td class="enum_member_description">
<p>Rectangular dithering</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-DITHER-TPDF:CAPS"></a>GST_AUDIO_DITHER_TPDF</p></td>
<td class="enum_member_description">
<p>Triangular dithering (default)</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-DITHER-TPDF-HF:CAPS"></a>GST_AUDIO_DITHER_TPDF_HF</p></td>
<td class="enum_member_description">
<p>High frequency triangular dithering</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioNoiseShapingMethod"></a><h3>enum GstAudioNoiseShapingMethod</h3>
<p>Set of available noise shaping methods</p>
<div class="refsect3">
<a name="id-1.2.6.16.8.5.4"></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-AUDIO-NOISE-SHAPING-NONE:CAPS"></a>GST_AUDIO_NOISE_SHAPING_NONE</p></td>
<td class="enum_member_description">
<p>No noise shaping (default)</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-NOISE-SHAPING-ERROR-FEEDBACK:CAPS"></a>GST_AUDIO_NOISE_SHAPING_ERROR_FEEDBACK</p></td>
<td class="enum_member_description">
<p>Error feedback</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-NOISE-SHAPING-SIMPLE:CAPS"></a>GST_AUDIO_NOISE_SHAPING_SIMPLE</p></td>
<td class="enum_member_description">
<p>Simple 2-pole noise shaping</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-NOISE-SHAPING-MEDIUM:CAPS"></a>GST_AUDIO_NOISE_SHAPING_MEDIUM</p></td>
<td class="enum_member_description">
<p>Medium 5-pole noise shaping</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-AUDIO-NOISE-SHAPING-HIGH:CAPS"></a>GST_AUDIO_NOISE_SHAPING_HIGH</p></td>
<td class="enum_member_description">
<p>High 8-pole noise shaping</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
</div>
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