libs/html/GstVideoOrientation.html

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                  <a href="#GstVideoOrientation.object-hierarchy" class="shortcut">Object Hierarchy</a></span>
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<a name="GstVideoOrientation"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="GstVideoOrientation.top_of_page"></a>GstVideoOrientation</span></h2>
<p>GstVideoOrientation — Interface for elements providing video orientation
controls</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="GstVideoOrientation.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">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstVideoOrientation.html#gst-video-orientation-get-hcenter" title="gst_video_orientation_get_hcenter ()">gst_video_orientation_get_hcenter</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstVideoOrientation.html#gst-video-orientation-get-hflip" title="gst_video_orientation_get_hflip ()">gst_video_orientation_get_hflip</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstVideoOrientation.html#gst-video-orientation-get-vcenter" title="gst_video_orientation_get_vcenter ()">gst_video_orientation_get_vcenter</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstVideoOrientation.html#gst-video-orientation-get-vflip" title="gst_video_orientation_get_vflip ()">gst_video_orientation_get_vflip</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstVideoOrientation.html#gst-video-orientation-set-hcenter" title="gst_video_orientation_set_hcenter ()">gst_video_orientation_set_hcenter</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstVideoOrientation.html#gst-video-orientation-set-hflip" title="gst_video_orientation_set_hflip ()">gst_video_orientation_set_hflip</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstVideoOrientation.html#gst-video-orientation-set-vcenter" title="gst_video_orientation_set_vcenter ()">gst_video_orientation_set_vcenter</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstVideoOrientation.html#gst-video-orientation-set-vflip" title="gst_video_orientation_set_vflip ()">gst_video_orientation_set_vflip</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GstVideoOrientation.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="GstVideoOrientation.html#GstVideoOrientation-struct" title="GstVideoOrientation">GstVideoOrientation</a></td>
</tr>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="GstVideoOrientation.html#GstVideoOrientationInterface" title="struct GstVideoOrientationInterface">GstVideoOrientationInterface</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GstVideoOrientation.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    <a href="/usr/share/gtk-doc/html/gobject/GTypeModule.html">GInterface</a>
    <span class="lineart">╰──</span> GstVideoOrientation
</pre>
</div>
<div class="refsect1">
<a name="GstVideoOrientation.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;gst/video/video.h&gt;
</pre>
</div>
<div class="refsect1">
<a name="GstVideoOrientation.description"></a><h2>Description</h2>
<p>The interface allows unified access to control flipping and autocenter
operation of video-sources or operators.</p>
</div>
<div class="refsect1">
<a name="GstVideoOrientation.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gst-video-orientation-get-hcenter"></a><h3>gst_video_orientation_get_hcenter ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_video_orientation_get_hcenter (<em class="parameter"><code><a class="link" href="GstVideoOrientation.html" title="GstVideoOrientation"><span class="type">GstVideoOrientation</span></a> *video_orientation</code></em>,
                                   <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *center</code></em>);</pre>
<p>Get the horizontal centering offset from the given object.</p>
<div class="refsect3">
<a name="gst-video-orientation-get-hcenter.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">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>video_orientation</p></td>
<td class="parameter_description"><p><a class="link" href="GstVideoOrientation.html" title="GstVideoOrientation"><span class="type">GstVideoOrientation</span></a> interface of a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct"><span class="type">GstElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>center</p></td>
<td class="parameter_description"><p>return location for the result. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-video-orientation-get-hcenter.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> in case the element supports centering</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-video-orientation-get-hflip"></a><h3>gst_video_orientation_get_hflip ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_video_orientation_get_hflip (<em class="parameter"><code><a class="link" href="GstVideoOrientation.html" title="GstVideoOrientation"><span class="type">GstVideoOrientation</span></a> *video_orientation</code></em>,
                                 <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> *flip</code></em>);</pre>
<p>Get the horizontal flipping state (<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> for flipped) from the given object.</p>
<div class="refsect3">
<a name="gst-video-orientation-get-hflip.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">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>video_orientation</p></td>
<td class="parameter_description"><p><a class="link" href="GstVideoOrientation.html" title="GstVideoOrientation"><span class="type">GstVideoOrientation</span></a> interface of a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct"><span class="type">GstElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flip</p></td>
<td class="parameter_description"><p>return location for the result. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-video-orientation-get-hflip.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> in case the element supports flipping</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-video-orientation-get-vcenter"></a><h3>gst_video_orientation_get_vcenter ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_video_orientation_get_vcenter (<em class="parameter"><code><a class="link" href="GstVideoOrientation.html" title="GstVideoOrientation"><span class="type">GstVideoOrientation</span></a> *video_orientation</code></em>,
                                   <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *center</code></em>);</pre>
<p>Get the vertical centering offset from the given object.</p>
<div class="refsect3">
<a name="gst-video-orientation-get-vcenter.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">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>video_orientation</p></td>
<td class="parameter_description"><p><a class="link" href="GstVideoOrientation.html" title="GstVideoOrientation"><span class="type">GstVideoOrientation</span></a> interface of a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct"><span class="type">GstElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>center</p></td>
<td class="parameter_description"><p>return location for the result. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-video-orientation-get-vcenter.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> in case the element supports centering</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-video-orientation-get-vflip"></a><h3>gst_video_orientation_get_vflip ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_video_orientation_get_vflip (<em class="parameter"><code><a class="link" href="GstVideoOrientation.html" title="GstVideoOrientation"><span class="type">GstVideoOrientation</span></a> *video_orientation</code></em>,
                                 <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> *flip</code></em>);</pre>
<p>Get the vertical flipping state (<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> for flipped) from the given object.</p>
<div class="refsect3">
<a name="gst-video-orientation-get-vflip.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">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>video_orientation</p></td>
<td class="parameter_description"><p><a class="link" href="GstVideoOrientation.html" title="GstVideoOrientation"><span class="type">GstVideoOrientation</span></a> interface of a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct"><span class="type">GstElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flip</p></td>
<td class="parameter_description"><p>return location for the result. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-video-orientation-get-vflip.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> in case the element supports flipping</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-video-orientation-set-hcenter"></a><h3>gst_video_orientation_set_hcenter ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_video_orientation_set_hcenter (<em class="parameter"><code><a class="link" href="GstVideoOrientation.html" title="GstVideoOrientation"><span class="type">GstVideoOrientation</span></a> *video_orientation</code></em>,
                                   <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> center</code></em>);</pre>
<p>Set the horizontal centering offset for the given object.</p>
<div class="refsect3">
<a name="gst-video-orientation-set-hcenter.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">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>video_orientation</p></td>
<td class="parameter_description"><p><a class="link" href="GstVideoOrientation.html" title="GstVideoOrientation"><span class="type">GstVideoOrientation</span></a> interface of a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct"><span class="type">GstElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>center</p></td>
<td class="parameter_description"><p>centering offset</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-video-orientation-set-hcenter.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> in case the element supports centering</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-video-orientation-set-hflip"></a><h3>gst_video_orientation_set_hflip ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_video_orientation_set_hflip (<em class="parameter"><code><a class="link" href="GstVideoOrientation.html" title="GstVideoOrientation"><span class="type">GstVideoOrientation</span></a> *video_orientation</code></em>,
                                 <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> flip</code></em>);</pre>
<p>Set the horizontal flipping state (<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> for flipped) for the given object.</p>
<div class="refsect3">
<a name="gst-video-orientation-set-hflip.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">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>video_orientation</p></td>
<td class="parameter_description"><p><a class="link" href="GstVideoOrientation.html" title="GstVideoOrientation"><span class="type">GstVideoOrientation</span></a> interface of a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct"><span class="type">GstElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flip</p></td>
<td class="parameter_description"><p>use flipping</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-video-orientation-set-hflip.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> in case the element supports flipping</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-video-orientation-set-vcenter"></a><h3>gst_video_orientation_set_vcenter ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_video_orientation_set_vcenter (<em class="parameter"><code><a class="link" href="GstVideoOrientation.html" title="GstVideoOrientation"><span class="type">GstVideoOrientation</span></a> *video_orientation</code></em>,
                                   <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> center</code></em>);</pre>
<p>Set the vertical centering offset for the given object.</p>
<div class="refsect3">
<a name="gst-video-orientation-set-vcenter.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">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>video_orientation</p></td>
<td class="parameter_description"><p><a class="link" href="GstVideoOrientation.html" title="GstVideoOrientation"><span class="type">GstVideoOrientation</span></a> interface of a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct"><span class="type">GstElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>center</p></td>
<td class="parameter_description"><p>centering offset</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-video-orientation-set-vcenter.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> in case the element supports centering</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-video-orientation-set-vflip"></a><h3>gst_video_orientation_set_vflip ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_video_orientation_set_vflip (<em class="parameter"><code><a class="link" href="GstVideoOrientation.html" title="GstVideoOrientation"><span class="type">GstVideoOrientation</span></a> *video_orientation</code></em>,
                                 <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> flip</code></em>);</pre>
<p>Set the vertical flipping state (<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> for flipped) for the given object.</p>
<div class="refsect3">
<a name="gst-video-orientation-set-vflip.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">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>video_orientation</p></td>
<td class="parameter_description"><p><a class="link" href="GstVideoOrientation.html" title="GstVideoOrientation"><span class="type">GstVideoOrientation</span></a> interface of a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct"><span class="type">GstElement</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flip</p></td>
<td class="parameter_description"><p>use flipping</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-video-orientation-set-vflip.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> in case the element supports flipping</p>
</div>
</div>
</div>
<div class="refsect1">
<a name="GstVideoOrientation.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstVideoOrientation-struct"></a><h3>GstVideoOrientation</h3>
<pre class="programlisting">typedef struct _GstVideoOrientation GstVideoOrientation;</pre>
<p>Opaque <a class="link" href="GstVideoOrientation.html" title="GstVideoOrientation"><span class="type">GstVideoOrientation</span></a> data structure.</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVideoOrientationInterface"></a><h3>struct GstVideoOrientationInterface</h3>
<pre class="programlisting">struct GstVideoOrientationInterface {
  GTypeInterface iface;

  /* FIXME 0.11: fix awkward API? add some kind of get_supported flags thing
   * and then just return booleans/int from all vfuncs requiring the caller
   * to check the flags first */

  /* virtual functions */
  gboolean (* get_hflip)   (GstVideoOrientation *video_orientation, gboolean *flip);
  gboolean (* get_vflip)   (GstVideoOrientation *video_orientation, gboolean *flip);
  gboolean (* get_hcenter) (GstVideoOrientation *video_orientation, gint *center);
  gboolean (* get_vcenter) (GstVideoOrientation *video_orientation, gint *center);

  gboolean (* set_hflip)   (GstVideoOrientation *video_orientation, gboolean flip);
  gboolean (* set_vflip)   (GstVideoOrientation *video_orientation, gboolean flip);
  gboolean (* set_hcenter) (GstVideoOrientation *video_orientation, gint center);
  gboolean (* set_vcenter) (GstVideoOrientation *video_orientation, gint center);
};
</pre>
<p><a class="link" href="GstVideoOrientation.html#GstVideoOrientationInterface" title="struct GstVideoOrientationInterface"><span class="type">GstVideoOrientationInterface</span></a> interface.</p>
<div class="refsect3">
<a name="GstVideoOrientationInterface.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="struct_members_name">
<col class="struct_members_description">
<col width="200px" class="struct_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="struct_member_name"><p><a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GTypeInterface"><span class="type">GTypeInterface</span></a> <em class="structfield"><code><a name="GstVideoOrientationInterface.iface"></a>iface</code></em>;</p></td>
<td class="struct_member_description"><p>parent interface type.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstVideoOrientationInterface.get-hflip"></a>get_hflip</code></em> ()</p></td>
<td class="struct_member_description"><p>virtual method to get horizontal flipping state</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstVideoOrientationInterface.get-vflip"></a>get_vflip</code></em> ()</p></td>
<td class="struct_member_description"><p>virtual method to get vertical flipping state</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstVideoOrientationInterface.get-hcenter"></a>get_hcenter</code></em> ()</p></td>
<td class="struct_member_description"><p>virtual method to get horizontal centering state</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstVideoOrientationInterface.get-vcenter"></a>get_vcenter</code></em> ()</p></td>
<td class="struct_member_description"><p>virtual method to get vertical centering state</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstVideoOrientationInterface.set-hflip"></a>set_hflip</code></em> ()</p></td>
<td class="struct_member_description"><p>virtual method to set horizontal flipping state</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstVideoOrientationInterface.set-vflip"></a>set_vflip</code></em> ()</p></td>
<td class="struct_member_description"><p>virtual method to set vertical flipping state</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstVideoOrientationInterface.set-hcenter"></a>set_hcenter</code></em> ()</p></td>
<td class="struct_member_description"><p>virtual method to set horizontal centering state</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstVideoOrientationInterface.set-vcenter"></a>set_vcenter</code></em> ()</p></td>
<td class="struct_member_description"><p>virtual method to set vertical centering state</p></td>
<td class="struct_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
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