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|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
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<title>textoverlay</title>
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<a href="#gst-plugins-base-plugins-textoverlay.synopsis" class="shortcut">Top</a>
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<a href="#gst-plugins-base-plugins-textoverlay.description" class="shortcut">Description</a>
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<a href="#gst-plugins-base-plugins-textoverlay.object-hierarchy" class="shortcut">Object Hierarchy</a>
|
<a href="#gst-plugins-base-plugins-textoverlay.properties" class="shortcut">Properties</a>
</td></tr>
</table>
<div class="refentry">
<a name="gst-plugins-base-plugins-textoverlay"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-base-plugins-textoverlay.top_of_page"></a>textoverlay</span></h2>
<p>textoverlay — Adds text strings on top of a video buffer</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="gst-plugins-base-plugins-textoverlay.synopsis"></a><h2>Synopsis</h2>
<a name="GstTextOverlay"></a><pre class="synopsis">struct <a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay-struct" title="struct GstTextOverlay">GstTextOverlay</a>;
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-textoverlay.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
<a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>
+----<a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
+----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a>
+----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html">GstElement</a>
+----GstBaseTextOverlay
+----GstTextOverlay
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-textoverlay.properties"></a><h2>Properties</h2>
<pre class="synopsis">
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--deltax" title='The "deltax" property'>deltax</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--deltay" title='The "deltay" property'>deltay</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--font-desc" title='The "font-desc" property'>font-desc</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--halign" title='The "halign" property'>halign</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--shaded-background" title='The "shaded-background" property'>shaded-background</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--text" title='The "text" property'>text</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Read / Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--valign" title='The "valign" property'>valign</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--wrap-mode" title='The "wrap-mode" property'>wrap-mode</a>" <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base/html/gst-plugins-base-plugins-textoverlay.html#GstTextOverlayWrapMode"><span class="type">GstTextOverlayWrapMode</span></a> : Read / Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--xpad" title='The "xpad" property'>xpad</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--ypad" title='The "ypad" property'>ypad</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--halignment" title='The "halignment" property'>halignment</a>" <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base/html/gst-plugins-base-plugins-textoverlay.html#GstTextOverlayHAlign"><span class="type">GstTextOverlayHAlign</span></a> : Read / Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--valignment" title='The "valignment" property'>valignment</a>" <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base/html/gst-plugins-base-plugins-textoverlay.html#GstTextOverlayVAlign"><span class="type">GstTextOverlayVAlign</span></a> : Read / Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--line-alignment" title='The "line-alignment" property'>line-alignment</a>" <span class="type">GstTextOverlayLineAlign</span> : Read / Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--silent" title='The "silent" property'>silent</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--wait-text" title='The "wait-text" property'>wait-text</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--auto-resize" title='The "auto-resize" property'>auto-resize</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--vertical-render" title='The "vertical-render" property'>vertical-render</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--color" title='The "color" property'>color</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> : Read / Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--xpos" title='The "xpos" property'>xpos</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> : Read / Write
"<a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay--ypos" title='The "ypos" property'>ypos</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> : Read / Write
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-textoverlay.description"></a><h2>Description</h2>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.30.6.2.1"></a><h3>Element Information</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">plugin</span></p></td>
<td>
<a class="link" href="gst-plugins-base-plugins-plugin-pango.html#plugin-pango">pango</a>
</td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>David Schleef <ds@schleef.org>, Zeeshan Ali <zeeshan.ali@nokia.com></td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Filter/Editor/Video</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.30.6.2.2"></a><h3>Element Pads</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>text_sink</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>text/x-raw, format=(string){ pango-markup, utf8 }</td>
</tr>
</tbody>
</table></div>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>video_sink</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>video/x-raw, format=(string){ BGRx, RGBx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, BGR, I420, YV12, AYUV, YUY2, UYVY, v308, Y41B, Y42B, Y444, NV12, NV21, A420, YUV9, YVU9, IYU1, GRAY8 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
</tr>
</tbody>
</table></div>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>src</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>source</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>video/x-raw, format=(string){ BGRx, RGBx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, BGR, I420, YV12, AYUV, YUY2, UYVY, v308, Y41B, Y42B, Y444, NV12, NV21, A420, YUV9, YVU9, IYU1, GRAY8 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<p>
</p>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-textoverlay.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GstTextOverlay-struct"></a><h3>struct GstTextOverlay</h3>
<pre class="programlisting">struct GstTextOverlay;</pre>
<p>
</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-textoverlay.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstTextOverlay--deltax"></a><h3>The <code class="literal">"deltax"</code> property</h3>
<pre class="programlisting"> "deltax" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre>
<p>Shift X position to the left or to the right. Unit is pixels.</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTextOverlay--deltay"></a><h3>The <code class="literal">"deltay"</code> property</h3>
<pre class="programlisting"> "deltay" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre>
<p>Shift Y position up or down. Unit is pixels.</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTextOverlay--font-desc"></a><h3>The <code class="literal">"font-desc"</code> property</h3>
<pre class="programlisting"> "font-desc" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Write</pre>
<p>Pango font description of font to be used for rendering. See documentation of pango_font_description_from_string for syntax.</p>
<p>Default value: ""</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTextOverlay--halign"></a><h3>The <code class="literal">"halign"</code> property</h3>
<pre class="programlisting"> "halign" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Write</pre>
<p>Horizontal alignment of the text (deprecated; use halignment).</p>
<p>Default value: "center"</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTextOverlay--shaded-background"></a><h3>The <code class="literal">"shaded-background"</code> property</h3>
<pre class="programlisting"> "shaded-background" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write</pre>
<p>Whether to shade the background under the text area.</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTextOverlay--text"></a><h3>The <code class="literal">"text"</code> property</h3>
<pre class="programlisting"> "text" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Read / Write</pre>
<p>Text to be display.</p>
<p>Default value: ""</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTextOverlay--valign"></a><h3>The <code class="literal">"valign"</code> property</h3>
<pre class="programlisting"> "valign" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Write</pre>
<p>Vertical alignment of the text (deprecated; use valignment).</p>
<p>Default value: "baseline"</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTextOverlay--wrap-mode"></a><h3>The <code class="literal">"wrap-mode"</code> property</h3>
<pre class="programlisting"> "wrap-mode" <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base/html/gst-plugins-base-plugins-textoverlay.html#GstTextOverlayWrapMode"><span class="type">GstTextOverlayWrapMode</span></a> : Read / Write</pre>
<p>Whether to wrap the text and if so how.</p>
<p>Default value: wordchar</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTextOverlay--xpad"></a><h3>The <code class="literal">"xpad"</code> property</h3>
<pre class="programlisting"> "xpad" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre>
<p>Horizontal paddding when using left/right alignment.</p>
<p>Allowed values: >= 0</p>
<p>Default value: 25</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTextOverlay--ypad"></a><h3>The <code class="literal">"ypad"</code> property</h3>
<pre class="programlisting"> "ypad" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre>
<p>Vertical padding when using top/bottom alignment.</p>
<p>Allowed values: >= 0</p>
<p>Default value: 25</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTextOverlay--halignment"></a><h3>The <code class="literal">"halignment"</code> property</h3>
<pre class="programlisting"> "halignment" <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base/html/gst-plugins-base-plugins-textoverlay.html#GstTextOverlayHAlign"><span class="type">GstTextOverlayHAlign</span></a> : Read / Write</pre>
<p>Horizontal alignment of the text.</p>
<p>Default value: center</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTextOverlay--valignment"></a><h3>The <code class="literal">"valignment"</code> property</h3>
<pre class="programlisting"> "valignment" <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base/html/gst-plugins-base-plugins-textoverlay.html#GstTextOverlayVAlign"><span class="type">GstTextOverlayVAlign</span></a> : Read / Write</pre>
<p>Vertical alignment of the text.</p>
<p>Default value: baseline</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTextOverlay--line-alignment"></a><h3>The <code class="literal">"line-alignment"</code> property</h3>
<pre class="programlisting"> "line-alignment" <span class="type">GstTextOverlayLineAlign</span> : Read / Write</pre>
<p>Alignment of text lines relative to each other.</p>
<p>Default value: center</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTextOverlay--silent"></a><h3>The <code class="literal">"silent"</code> property</h3>
<pre class="programlisting"> "silent" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write</pre>
<p>Whether to render the text string.</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTextOverlay--wait-text"></a><h3>The <code class="literal">"wait-text"</code> property</h3>
<pre class="programlisting"> "wait-text" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write</pre>
<p>Whether to wait for subtitles.</p>
<p>Default value: TRUE</p>
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<div class="refsect2">
<a name="GstTextOverlay--auto-resize"></a><h3>The <code class="literal">"auto-resize"</code> property</h3>
<pre class="programlisting"> "auto-resize" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write</pre>
<p>Automatically adjust font size to screen-size.</p>
<p>Default value: TRUE</p>
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<hr>
<div class="refsect2">
<a name="GstTextOverlay--vertical-render"></a><h3>The <code class="literal">"vertical-render"</code> property</h3>
<pre class="programlisting"> "vertical-render" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write</pre>
<p>Vertical Render.</p>
<p>Default value: FALSE</p>
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<hr>
<div class="refsect2">
<a name="GstTextOverlay--color"></a><h3>The <code class="literal">"color"</code> property</h3>
<pre class="programlisting"> "color" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> : Read / Write</pre>
<p>Color to use for text (big-endian ARGB).</p>
<p>Default value: 4294967295</p>
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<div class="refsect2">
<a name="GstTextOverlay--xpos"></a><h3>The <code class="literal">"xpos"</code> property</h3>
<pre class="programlisting"> "xpos" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> : Read / Write</pre>
<p>Horizontal position when using position alignment.</p>
<p>Allowed values: [0,1]</p>
<p>Default value: 0.5</p>
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<hr>
<div class="refsect2">
<a name="GstTextOverlay--ypos"></a><h3>The <code class="literal">"ypos"</code> property</h3>
<pre class="programlisting"> "ypos" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> : Read / Write</pre>
<p>Vertical position when using position alignment.</p>
<p>Allowed values: [0,1]</p>
<p>Default value: 0.5</p>
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