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<title>GstPhysMemoryAllocator: GStreamer Base Plugins 1.0 Library Reference Manual</title>
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<a href="#gst-plugins-base-libs-GstPhysMemoryAllocator.description" class="shortcut">Description</a></span>
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<a name="gst-plugins-base-libs-GstPhysMemoryAllocator"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="gst-plugins-base-libs-GstPhysMemoryAllocator.top_of_page"></a>GstPhysMemoryAllocator</span></h2>
<p>GstPhysMemoryAllocator — Interface for allocators that pass around physical memory addresses</p>
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<a name="gst-plugins-base-libs-GstPhysMemoryAllocator.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">
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<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
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<td class="function_name">
<a class="link" href="gst-plugins-base-libs-GstPhysMemoryAllocator.html#gst-is-phys-memory" title="gst_is_phys_memory ()">gst_is_phys_memory</a> <span class="c_punctuation">()</span>
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<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guintptr"><span class="returnvalue">guintptr</span></a>
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<td class="function_name">
<a class="link" href="gst-plugins-base-libs-GstPhysMemoryAllocator.html#gst-phys-memory-get-phys-addr" title="gst_phys_memory_get_phys_addr ()">gst_phys_memory_get_phys_addr</a> <span class="c_punctuation">()</span>
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<a name="gst-plugins-base-libs-GstPhysMemoryAllocator.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
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<col width="150px" class="name">
<col class="description">
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<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="gst-plugins-base-libs-GstPhysMemoryAllocator.html#GstPhysMemoryAllocator" title="GstPhysMemoryAllocator">GstPhysMemoryAllocator</a></td>
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<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="gst-plugins-base-libs-GstPhysMemoryAllocator.html#GstPhysMemoryAllocatorInterface" title="struct GstPhysMemoryAllocatorInterface">GstPhysMemoryAllocatorInterface</a></td>
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<a name="gst-plugins-base-libs-GstPhysMemoryAllocator.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include <gst/allocators/allocators.h>
</pre>
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<div class="refsect1">
<a name="gst-plugins-base-libs-GstPhysMemoryAllocator.description"></a><h2>Description</h2>
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<a name="gst-plugins-base-libs-GstPhysMemoryAllocator.functions_details"></a><h2>Functions</h2>
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<a name="gst-is-phys-memory"></a><h3>gst_is_phys_memory ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_is_phys_memory (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstMemory.html#GstMemory-struct"><span class="type">GstMemory</span></a> *mem</code></em>);</pre>
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<a name="gst-is-phys-memory.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
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<col width="150px" class="parameters_name">
<col class="parameters_description">
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<td class="parameter_name"><p>mem</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstMemory.html#GstMemory-struct"><span class="type">GstMemory</span></a></p></td>
<td class="parameter_annotations"> </td>
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<div class="refsect3">
<a name="gst-is-phys-memory.returns"></a><h4>Returns</h4>
<p> whether the memory at <em class="parameter"><code>mem</code></em>
is backed by physical memory</p>
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<p class="since">Since: <a class="link" href="ix03.html#api-index-1.14">1.14</a></p>
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<div class="refsect2">
<a name="gst-phys-memory-get-phys-addr"></a><h3>gst_phys_memory_get_phys_addr ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guintptr"><span class="returnvalue">guintptr</span></a>
gst_phys_memory_get_phys_addr (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstMemory.html#GstMemory-struct"><span class="type">GstMemory</span></a> *mem</code></em>);</pre>
<div class="refsect3">
<a name="gst-phys-memory-get-phys-addr.parameters"></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">
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<td class="parameter_name"><p>mem</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstMemory.html#GstMemory-struct"><span class="type">GstMemory</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
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<div class="refsect3">
<a name="gst-phys-memory-get-phys-addr.returns"></a><h4>Returns</h4>
<p> Physical memory address that is backing <em class="parameter"><code>mem</code></em>
, or 0 if none</p>
</div>
<p class="since">Since: <a class="link" href="ix03.html#api-index-1.14">1.14</a></p>
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<div class="refsect1">
<a name="gst-plugins-base-libs-GstPhysMemoryAllocator.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstPhysMemoryAllocator"></a><h3>GstPhysMemoryAllocator</h3>
<pre class="programlisting">typedef struct _GstPhysMemoryAllocator GstPhysMemoryAllocator;</pre>
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<hr>
<div class="refsect2">
<a name="GstPhysMemoryAllocatorInterface"></a><h3>struct GstPhysMemoryAllocatorInterface</h3>
<pre class="programlisting">struct GstPhysMemoryAllocatorInterface {
GTypeInterface parent_iface;
guintptr (*get_phys_addr) (GstPhysMemoryAllocator * allocator, GstMemory * mem);
};
</pre>
<p>Marker interface for allocators with physical address backed memory</p>
<p class="since">Since: <a class="link" href="ix03.html#api-index-1.14">1.14</a></p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-libs-GstPhysMemoryAllocator.see-also"></a><h2>See Also</h2>
<p><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstMemory.html#GstMemory-struct"><span class="type">GstMemory</span></a></p>
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