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| <div class="refentry"> |
| <a name="gst-plugins-base-plugins-textrender"></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-textrender.top_of_page"></a>textrender</span></h2> |
| <p>textrender</p> |
| </td> |
| <td class="gallery_image" valign="top" align="right"></td> |
| </tr></table></div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-plugins-textrender.properties"></a><h2>Properties</h2> |
| <div class="informaltable"><table class="informaltable" border="0"> |
| <colgroup> |
| <col width="150px" class="properties_type"> |
| <col width="300px" class="properties_name"> |
| <col width="200px" class="properties_flags"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="property_type"> |
| <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td> |
| <td class="property_name"><a class="link" href="gst-plugins-base-plugins-textrender.html#GstTextRender--font-desc" title="The “font-desc” property">font-desc</a></td> |
| <td class="property_flags">Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a class="link" href="gst-plugins-base-plugins-textrender.html#GstTextRenderHAlign" title="enum GstTextRenderHAlign"><span class="type">GstTextRenderHAlign</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-base-plugins-textrender.html#GstTextRender--halignment" title="The “halignment” property">halignment</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a class="link" href="gst-plugins-base-plugins-textrender.html#GstTextRenderLineAlign" title="enum GstTextRenderLineAlign"><span class="type">GstTextRenderLineAlign</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-base-plugins-textrender.html#GstTextRender--line-alignment" title="The “line-alignment” property">line-alignment</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a class="link" href="gst-plugins-base-plugins-textrender.html#GstTextRenderVAlign" title="enum GstTextRenderVAlign"><span class="type">GstTextRenderVAlign</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-base-plugins-textrender.html#GstTextRender--valignment" title="The “valignment” property">valignment</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-base-plugins-textrender.html#GstTextRender--xpad" title="The “xpad” property">xpad</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-base-plugins-textrender.html#GstTextRender--ypad" title="The “ypad” property">ypad</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <a name="GstTextRender"></a><div class="refsect1"> |
| <a name="gst-plugins-base-plugins-textrender.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">struct</td> |
| <td class="function_name"><a class="link" href="gst-plugins-base-plugins-textrender.html#GstTextRender-struct" title="struct GstTextRender">GstTextRender</a></td> |
| </tr> |
| <tr> |
| <td class="datatype_keyword">enum</td> |
| <td class="function_name"><a class="link" href="gst-plugins-base-plugins-textrender.html#GstTextRenderHAlign" title="enum GstTextRenderHAlign">GstTextRenderHAlign</a></td> |
| </tr> |
| <tr> |
| <td class="datatype_keyword">enum</td> |
| <td class="function_name"><a class="link" href="gst-plugins-base-plugins-textrender.html#GstTextRenderLineAlign" title="enum GstTextRenderLineAlign">GstTextRenderLineAlign</a></td> |
| </tr> |
| <tr> |
| <td class="datatype_keyword">enum</td> |
| <td class="function_name"><a class="link" href="gst-plugins-base-plugins-textrender.html#GstTextRenderVAlign" title="enum GstTextRenderVAlign">GstTextRenderVAlign</a></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-plugins-textrender.object-hierarchy"></a><h2>Object Hierarchy</h2> |
| <pre class="screen"> <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct">GObject</a> |
| <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a> |
| <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstObject.html#GstObject-struct">GstObject</a> |
| <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstElement.html#GstElement-struct">GstElement</a> |
| <span class="lineart">╰──</span> GstTextRender |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-plugins-textrender.description"></a><h2>Description</h2> |
| <p>This plugin renders text received on the text sink pad to a video |
| buffer (retaining the alpha channel), so it can later be overlayed |
| on top of video streams using other elements.</p> |
| <p>The text can contain newline characters. (FIXME: What about text |
| wrapping? It does not make sense in this context)</p> |
| <div class="refsect2"> |
| <a name="id-1.2.46.7.4"></a><h3>Example launch lines</h3> |
| <div class="informalexample"> |
| <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> |
| <tbody> |
| <tr> |
| <td class="listing_lines" align="right"><pre>1</pre></td> |
| <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> <span class="gtkdoc opt">-</span>v filesrc location<span class="gtkdoc opt">=</span>subtitles<span class="gtkdoc opt">.</span>srt <span class="gtkdoc opt">!</span> subparse <span class="gtkdoc opt">!</span> textrender <span class="gtkdoc opt">!</span> videoconvert <span class="gtkdoc opt">!</span> autovideosink</pre></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| |
| </div> |
| <div class="refsynopsisdiv"> |
| <h2>Synopsis</h2> |
| <div class="refsect2"> |
| <a name="id-1.2.46.7.5.1"></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>, GStreamer maintainers <gstreamer-devel@lists.freedesktop.org></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-1.2.46.7.5.2"></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>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>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){ AYUV, ARGB }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-plugins-textrender.functions_details"></a><h2>Functions</h2> |
| <p></p> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-plugins-textrender.other_details"></a><h2>Types and Values</h2> |
| <div class="refsect2"> |
| <a name="GstTextRender-struct"></a><h3>struct GstTextRender</h3> |
| <pre class="programlisting">struct GstTextRender;</pre> |
| <p>Opaque textrender data structure.</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstTextRenderHAlign"></a><h3>enum GstTextRenderHAlign</h3> |
| <p>Horizontal alignment of the text.</p> |
| <div class="refsect3"> |
| <a name="GstTextRenderHAlign.members"></a><h4>Members</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="300px" class="enum_members_name"> |
| <col class="enum_members_description"> |
| <col width="200px" class="enum_members_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-TEXT-RENDER-HALIGN-LEFT:CAPS"></a>GST_TEXT_RENDER_HALIGN_LEFT</p></td> |
| <td class="enum_member_description"> |
| <p>align text left</p> |
| </td> |
| <td class="enum_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-TEXT-RENDER-HALIGN-CENTER:CAPS"></a>GST_TEXT_RENDER_HALIGN_CENTER</p></td> |
| <td class="enum_member_description"> |
| <p>align text center</p> |
| </td> |
| <td class="enum_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-TEXT-RENDER-HALIGN-RIGHT:CAPS"></a>GST_TEXT_RENDER_HALIGN_RIGHT</p></td> |
| <td class="enum_member_description"> |
| <p>align text right</p> |
| </td> |
| <td class="enum_member_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstTextRenderLineAlign"></a><h3>enum GstTextRenderLineAlign</h3> |
| <p>Alignment of text lines relative to each other</p> |
| <div class="refsect3"> |
| <a name="GstTextRenderLineAlign.members"></a><h4>Members</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="300px" class="enum_members_name"> |
| <col class="enum_members_description"> |
| <col width="200px" class="enum_members_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-TEXT-RENDER-LINE-ALIGN-LEFT:CAPS"></a>GST_TEXT_RENDER_LINE_ALIGN_LEFT</p></td> |
| <td class="enum_member_description"> |
| <p>lines are left-aligned</p> |
| </td> |
| <td class="enum_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-TEXT-RENDER-LINE-ALIGN-CENTER:CAPS"></a>GST_TEXT_RENDER_LINE_ALIGN_CENTER</p></td> |
| <td class="enum_member_description"> |
| <p>lines are center-aligned</p> |
| </td> |
| <td class="enum_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-TEXT-RENDER-LINE-ALIGN-RIGHT:CAPS"></a>GST_TEXT_RENDER_LINE_ALIGN_RIGHT</p></td> |
| <td class="enum_member_description"> |
| <p>lines are right-aligned</p> |
| </td> |
| <td class="enum_member_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstTextRenderVAlign"></a><h3>enum GstTextRenderVAlign</h3> |
| <p>Vertical alignment of the text.</p> |
| <div class="refsect3"> |
| <a name="GstTextRenderVAlign.members"></a><h4>Members</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="300px" class="enum_members_name"> |
| <col class="enum_members_description"> |
| <col width="200px" class="enum_members_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-TEXT-RENDER-VALIGN-BASELINE:CAPS"></a>GST_TEXT_RENDER_VALIGN_BASELINE</p></td> |
| <td class="enum_member_description"> |
| <p>draw text on the baseline</p> |
| </td> |
| <td class="enum_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-TEXT-RENDER-VALIGN-BOTTOM:CAPS"></a>GST_TEXT_RENDER_VALIGN_BOTTOM</p></td> |
| <td class="enum_member_description"> |
| <p>draw text on the bottom</p> |
| </td> |
| <td class="enum_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-TEXT-RENDER-VALIGN-TOP:CAPS"></a>GST_TEXT_RENDER_VALIGN_TOP</p></td> |
| <td class="enum_member_description"> |
| <p>draw test on top</p> |
| </td> |
| <td class="enum_member_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-plugins-textrender.property-details"></a><h2>Property Details</h2> |
| <div class="refsect2"> |
| <a name="GstTextRender--font-desc"></a><h3>The <code class="literal">“font-desc”</code> property</h3> |
| <pre class="programlisting"> “font-desc” <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre> |
| <p>Pango font description of font to be used for rendering. See documentation of pango_font_description_from_string for syntax.</p> |
| <p>Flags: Write</p> |
| <p>Default value: ""</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstTextRender--halignment"></a><h3>The <code class="literal">“halignment”</code> property</h3> |
| <pre class="programlisting"> “halignment” <a class="link" href="gst-plugins-base-plugins-textrender.html#GstTextRenderHAlign" title="enum GstTextRenderHAlign"><span class="type">GstTextRenderHAlign</span></a></pre> |
| <p>Horizontal alignment of the text.</p> |
| <p>Flags: Read / Write</p> |
| <p>Default value: center</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstTextRender--line-alignment"></a><h3>The <code class="literal">“line-alignment”</code> property</h3> |
| <pre class="programlisting"> “line-alignment” <a class="link" href="gst-plugins-base-plugins-textrender.html#GstTextRenderLineAlign" title="enum GstTextRenderLineAlign"><span class="type">GstTextRenderLineAlign</span></a></pre> |
| <p>Alignment of text lines relative to each other.</p> |
| <p>Flags: Read / Write</p> |
| <p>Default value: center</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstTextRender--valignment"></a><h3>The <code class="literal">“valignment”</code> property</h3> |
| <pre class="programlisting"> “valignment” <a class="link" href="gst-plugins-base-plugins-textrender.html#GstTextRenderVAlign" title="enum GstTextRenderVAlign"><span class="type">GstTextRenderVAlign</span></a></pre> |
| <p>Vertical alignment of the text.</p> |
| <p>Flags: Read / Write</p> |
| <p>Default value: baseline</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstTextRender--xpad"></a><h3>The <code class="literal">“xpad”</code> property</h3> |
| <pre class="programlisting"> “xpad” <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a></pre> |
| <p>Horizontal paddding when using left/right alignment.</p> |
| <p>Flags: Read / Write</p> |
| <p>Allowed values: >= 0</p> |
| <p>Default value: 25</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstTextRender--ypad"></a><h3>The <code class="literal">“ypad”</code> property</h3> |
| <pre class="programlisting"> “ypad” <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a></pre> |
| <p>Vertical padding when using top/bottom alignment.</p> |
| <p>Flags: Read / Write</p> |
| <p>Allowed values: >= 0</p> |
| <p>Default value: 25</p> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-plugins-textrender.see-also"></a><h2>See Also</h2> |
| <p><a class="link" href="gst-plugins-base-plugins-textoverlay.html#GstTextOverlay"><span class="type">GstTextOverlay</span></a></p> |
| </div> |
| </div> |
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