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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>GStreamer Buzztard Reference Manual: GstBml</title>
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<td width="100%" align="left" class="shortcuts">
<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span> 
                  <a href="#gst-buzztard-GstBml.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span> 
                  <a href="#gst-buzztard-GstBml.object-hierarchy" class="shortcut">Object Hierarchy</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-buzztard-GstBml"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-buzztard-GstBml.top_of_page"></a>GstBml</span></h2>
<p>GstBml — buzzmachine wrapper</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gst-buzztard-GstBml.functions"></a><h2>Functions</h2>
<div class="informaltable"><table 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-buzztard-GstBml.html#gstbml-calculate-buffer-frames" title="gstbml_calculate_buffer_frames ()">gstbml_calculate_buffer_frames</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-buzztard-GstBml.html#gstbml-convert-names" title="gstbml_convert_names ()">gstbml_convert_names</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-buzztard-GstBml.html#gstbml-dispose" title="gstbml_dispose ()">gstbml_dispose</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-buzztard-GstBml.html#gstbml-fix-data" title="gstbml_fix_data ()">gstbml_fix_data</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-buzztard-GstBml.html#gstbml-get-param" title="gstbml_get_param ()">gstbml_get_param</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-buzztard-GstBml.html#gstbml-set-param" title="gstbml_set_param ()">gstbml_set_param</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">GParamSpec</span> *
</td>
<td class="function_name">
<a class="link" href="gst-buzztard-GstBml.html#gstbml-register-param" title="gstbml_register_param ()">gstbml_register_param</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-buzztard-GstBml.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">
</pre>
</div>
<div class="refsect1">
<a name="gst-buzztard-GstBml.description"></a><h2>Description</h2>
<p>Wrapper for buzzmachine sound generators and effects.</p>
</div>
<div class="refsect1">
<a name="gst-buzztard-GstBml.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gstbml-calculate-buffer-frames"></a><h3>gstbml_calculate_buffer_frames ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gstbml_calculate_buffer_frames (<em class="parameter"><code><span class="type">GstBML</span> *bml</code></em>);</pre>
<p>update the buffersize for calculation (in samples)
buffer_frames = samples_per_minute/ticks_per_minute</p>
<div class="refsect3">
<a name="id-1.5.3.6.2.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>bml</p></td>
<td class="parameter_description"><p>bml instance</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gstbml-convert-names"></a><h3>gstbml_convert_names ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gstbml_convert_names (<em class="parameter"><code><span class="type">GObjectClass</span> *klass</code></em>,
                      <em class="parameter"><code><span class="type">gchar</span> *tmp_name</code></em>,
                      <em class="parameter"><code><span class="type">gchar</span> *tmp_desc</code></em>,
                      <em class="parameter"><code><span class="type">gchar</span> **name</code></em>,
                      <em class="parameter"><code><span class="type">gchar</span> **nick</code></em>,
                      <em class="parameter"><code><span class="type">gchar</span> **desc</code></em>);</pre>
<p>Convert charset encoding and make property-names unique.</p>
<div class="refsect3">
<a name="id-1.5.3.6.3.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>klass</p></td>
<td class="parameter_description"><p>the instance class</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>tmp_name</p></td>
<td class="parameter_description"><p>name to build <em class="parameter"><code>name</code></em>
and <em class="parameter"><code>nick</code></em>
from</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>tmp_desc</p></td>
<td class="parameter_description"><p>desc to build <em class="parameter"><code>desc</code></em>
from</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>name</p></td>
<td class="parameter_description"><p>target for name</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>nick</p></td>
<td class="parameter_description"><p>target for nick</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>desc</p></td>
<td class="parameter_description"><p>target for description</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gstbml-dispose"></a><h3>gstbml_dispose ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gstbml_dispose (<em class="parameter"><code><span class="type">GstBML</span> *bml</code></em>);</pre>
<p>Dispose common buzzmachine data.</p>
<div class="refsect3">
<a name="id-1.5.3.6.4.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>bml</p></td>
<td class="parameter_description"><p>bml instance</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gstbml-fix-data"></a><h3>gstbml_fix_data ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gstbml_fix_data (<em class="parameter"><code><span class="type">GstElement</span> *elem</code></em>,
                 <em class="parameter"><code><span class="type">GstBuffer</span> *buf</code></em>,
                 <em class="parameter"><code><span class="type">gboolean</span> has_data</code></em>);</pre>
<p>Fixes elements that output denormalized values (sets them to 0.0). Also
adjust gap-flags. unfortunately this is quite expensive, although extra gap
flags help.</p>
<div class="refsect3">
<a name="id-1.5.3.6.5.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>elem</p></td>
<td class="parameter_description"><p>the element instance</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>buf</p></td>
<td class="parameter_description"><p>the data buffer</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>has_data</p></td>
<td class="parameter_description"><p>indication wheter the buffer has values != 0.0</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gstbml-get-param"></a><h3>gstbml_get_param ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gstbml_get_param (<em class="parameter"><code><span class="type">GstBMLParameterTypes</span> type</code></em>,
                  <em class="parameter"><code><span class="type">gpointer</span> addr</code></em>,
                  <em class="parameter"><code><span class="type">GValue</span> *value</code></em>);</pre>
<p>Read a parameter according to <em class="parameter"><code>type</code></em>
 from <em class="parameter"><code>addr</code></em>
 into the <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="id-1.5.3.6.6.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>type</p></td>
<td class="parameter_description"><p>parameter type</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>addr</p></td>
<td class="parameter_description"><p>the address pointing to the value</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>the target</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gstbml-set-param"></a><h3>gstbml_set_param ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gstbml_set_param (<em class="parameter"><code><span class="type">GstBMLParameterTypes</span> type</code></em>,
                  <em class="parameter"><code><span class="type">gpointer</span> addr</code></em>,
                  <em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>);</pre>
<p>Write a parameter according to <em class="parameter"><code>type</code></em>
 to <em class="parameter"><code>addr</code></em>
 from the <em class="parameter"><code>value</code></em>
.</p>
<div class="refsect3">
<a name="id-1.5.3.6.7.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>type</p></td>
<td class="parameter_description"><p>parameter type</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>addr</p></td>
<td class="parameter_description"><p>the address pointing to the value</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>the source</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gstbml-register-param"></a><h3>gstbml_register_param ()</h3>
<pre class="programlisting"><span class="returnvalue">GParamSpec</span> *
gstbml_register_param (<em class="parameter"><code><span class="type">GObjectClass</span> *klass</code></em>,
                       <em class="parameter"><code><span class="type">gint</span> prop_id</code></em>,
                       <em class="parameter"><code><span class="type">GstBMLParameterTypes</span> type</code></em>,
                       <em class="parameter"><code><span class="type">GType</span> enum_type</code></em>,
                       <em class="parameter"><code><span class="type">gchar</span> *name</code></em>,
                       <em class="parameter"><code><span class="type">gchar</span> *nick</code></em>,
                       <em class="parameter"><code><span class="type">gchar</span> *desc</code></em>,
                       <em class="parameter"><code><span class="type">gint</span> flags</code></em>,
                       <em class="parameter"><code><span class="type">gint</span> min_val</code></em>,
                       <em class="parameter"><code><span class="type">gint</span> max_val</code></em>,
                       <em class="parameter"><code><span class="type">gint</span> no_val</code></em>,
                       <em class="parameter"><code><span class="type">gint</span> def_val</code></em>);</pre>
<p>Normalize data and create a paramspec.</p>
<div class="refsect3">
<a name="id-1.5.3.6.8.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>klass</p></td>
<td class="parameter_description"><p>the instance class</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>prop_id</p></td>
<td class="parameter_description"><p>the property number</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>type</p></td>
<td class="parameter_description"><p>the parameter type</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>enum_type</p></td>
<td class="parameter_description"><p>the enum type (or 0)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>name</p></td>
<td class="parameter_description"><p>the property name</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>nick</p></td>
<td class="parameter_description"><p>the property nick</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>desc</p></td>
<td class="parameter_description"><p>the property description</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flags</p></td>
<td class="parameter_description"><p>extra property flags</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>min_val</p></td>
<td class="parameter_description"><p>minimum value</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>max_val</p></td>
<td class="parameter_description"><p>maximum value</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>no_val</p></td>
<td class="parameter_description"><p>unset value (neutral)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>def_val</p></td>
<td class="parameter_description"><p>default value</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.5.3.6.8.6"></a><h4>Returns</h4>
<p> the param spec</p>
<p></p>
</div>
</div>
</div>
<div class="refsect1">
<a name="gst-buzztard-GstBml.other_details"></a><h2>Types and Values</h2>
</div>
</div>
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