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<h2><span class="refentrytitle"><a name="gst-plugins-base-libs-gstfloatcast.top_of_page"></a>gstfloatcast</span></h2>
<p>gstfloatcast — Floating point platform independence macros</p>
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<a name="gst-plugins-base-libs-gstfloatcast.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="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gst-plugins-base-libs-gstfloatcast.html#gst-cast-double" title="gst_cast_double()">gst_cast_double</a><span class="c_punctuation">()</span>
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<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gst-plugins-base-libs-gstfloatcast.html#gst-cast-float" title="gst_cast_float()">gst_cast_float</a><span class="c_punctuation">()</span>
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<a name="gst-plugins-base-libs-gstfloatcast.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">
</pre>
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<div class="refsect1">
<a name="gst-plugins-base-libs-gstfloatcast.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include <gst/floatcast/floatcast.h>
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-base-libs-gstfloatcast.description"></a><h2>Description</h2>
<p>The floatcast.h header file contains a couple of convenience macros for
floating point numbers.</p>
<p>If you include this header, your application or library must link against
libm (for maths.h support).</p>
<p>For optimal results, your application's or library's build
system should check whether the C99 functions lrint and lrintf are supported
and define the preprocessor symbols HAVE_LRINT and HAVE_LRINTF if so. If
you are using autoconf, you can do this by using the AC_C99_FUNC_LRINT and
AC_C99_FUNC_LRINTF checks in your configure.ac or configure.in file and
including your application's config.h header before you include floatcast.h.</p>
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<div class="refsect1">
<a name="gst-plugins-base-libs-gstfloatcast.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gst-cast-double"></a><h3>gst_cast_double()</h3>
<pre class="programlisting"> #define gst_cast_double(x) ((gint)lrint(x))
</pre>
<p>Casts a 64-bit floating point value (double) to an integer without bias.</p>
<div class="refsect3">
<a name="id-1.2.8.3.7.2.5"></a><h4>Parameters</h4>
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<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
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<tbody><tr>
<td class="parameter_name"><p>x</p></td>
<td class="parameter_description"><p>input value</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
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<hr>
<div class="refsect2">
<a name="gst-cast-float"></a><h3>gst_cast_float()</h3>
<pre class="programlisting"> #define gst_cast_float(x) ((gint)lrintf(x))
</pre>
<p>Casts a 32-bit floating point value (float) to an integer without bias.</p>
<div class="refsect3">
<a name="id-1.2.8.3.7.3.5"></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>x</p></td>
<td class="parameter_description"><p>input value</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
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<div class="refsect1">
<a name="gst-plugins-base-libs-gstfloatcast.other_details"></a><h2>Types and Values</h2>
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