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| <a href="#gst-plugins-good-plugins-v4l2src.synopsis" class="shortcut">Top</a> |
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| <a href="#gst-plugins-good-plugins-v4l2src.description" class="shortcut">Description</a> |
| | |
| <a href="#gst-plugins-good-plugins-v4l2src.object-hierarchy" class="shortcut">Object Hierarchy</a> |
| | |
| <a href="#gst-plugins-good-plugins-v4l2src.implemented-interfaces" class="shortcut">Implemented Interfaces</a> |
| | |
| <a href="#gst-plugins-good-plugins-v4l2src.properties" class="shortcut">Properties</a> |
| | |
| <a href="#gst-plugins-good-plugins-v4l2src.signals" class="shortcut">Signals</a> |
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| </table> |
| <div class="refentry"> |
| <a name="gst-plugins-good-plugins-v4l2src"></a><div class="titlepage"></div> |
| <div class="refnamediv"><table width="100%"><tr> |
| <td valign="top"> |
| <h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-v4l2src.top_of_page"></a>v4l2src</span></h2> |
| <p>v4l2src — Reads frames from a Video4Linux2 device</p> |
| </td> |
| <td valign="top" align="right"></td> |
| </tr></table></div> |
| <div class="refsynopsisdiv"> |
| <a name="gst-plugins-good-plugins-v4l2src.synopsis"></a><h2>Synopsis</h2> |
| <a name="GstV4l2Src"></a><pre class="synopsis">struct <a class="link" href="gst-plugins-good-plugins-v4l2src.html#GstV4l2Src-struct" title="struct GstV4l2Src">GstV4l2Src</a>; |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-v4l2src.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> |
| +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-libs/html/GstBaseSrc.html">GstBaseSrc</a> |
| +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-libs/html/GstPushSrc.html">GstPushSrc</a> |
| +----GstV4l2Src |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-v4l2src.implemented-interfaces"></a><h2>Implemented Interfaces</h2> |
| <p> |
| GstV4l2Src implements |
| <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstUriHandler.html#GstURIHandler">GstURIHandler</a>, <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gsttuner.html#GstTuner">GstTuner</a>, <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstcolorbalance.html#GstColorBalance">GstColorBalance</a> and <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstvideoorientation.html#GstVideoOrientation">GstVideoOrientation</a>.</p> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-v4l2src.properties"></a><h2>Properties</h2> |
| <pre class="synopsis"> |
| "<a class="link" href="gst-plugins-good-plugins-v4l2src.html#GstV4l2Src--device" title='The "device" property'>device</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-good-plugins-v4l2src.html#GstV4l2Src--device-name" title='The "device-name" property'>device-name</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Read |
| "<a class="link" href="gst-plugins-good-plugins-v4l2src.html#GstV4l2Src--flags" title='The "flags" property'>flags</a>" <span class="type">GstV4l2DeviceTypeFlags</span> : Read |
| "<a class="link" href="gst-plugins-good-plugins-v4l2src.html#GstV4l2Src--queue-size" title='The "queue-size" property'>queue-size</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-good-plugins-v4l2src.html#GstV4l2Src--always-copy" title='The "always-copy" property'>always-copy</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-good-plugins-v4l2src.html#GstV4l2Src--device-fd" title='The "device-fd" property'>device-fd</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read |
| "<a class="link" href="gst-plugins-good-plugins-v4l2src.html#GstV4l2Src--brightness" title='The "brightness" property'>brightness</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-good-plugins-v4l2src.html#GstV4l2Src--contrast" title='The "contrast" property'>contrast</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-good-plugins-v4l2src.html#GstV4l2Src--decimate" title='The "decimate" property'>decimate</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-good-plugins-v4l2src.html#GstV4l2Src--hue" title='The "hue" property'>hue</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-good-plugins-v4l2src.html#GstV4l2Src--saturation" title='The "saturation" property'>saturation</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-good-plugins-v4l2src.html#GstV4l2Src--norm" title='The "norm" property'>norm</a>" <span class="type">V4L2_TV_norms</span> : Read / Write |
| "<a class="link" href="gst-plugins-good-plugins-v4l2src.html#GstV4l2Src--io-mode" title='The "io-mode" property'>io-mode</a>" <span class="type">GstV4l2IOMode</span> : Read / Write |
| "<a class="link" href="gst-plugins-good-plugins-v4l2src.html#GstV4l2Src--extra-controls" title='The "extra-controls" property'>extra-controls</a>" <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstStructure.html#GstStructure"><span class="type">GstStructure</span></a>* : Read / Write |
| "<a class="link" href="gst-plugins-good-plugins-v4l2src.html#GstV4l2Src--force-aspect-ratio" title='The "force-aspect-ratio" property'>force-aspect-ratio</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-good-plugins-v4l2src.html#GstV4l2Src--pixel-aspect-ratio" title='The "pixel-aspect-ratio" property'>pixel-aspect-ratio</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Read / Write |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-v4l2src.signals"></a><h2>Signals</h2> |
| <pre class="synopsis"> |
| "<a class="link" href="gst-plugins-good-plugins-v4l2src.html#GstV4l2Src-prepare-format" title='The "prepare-format" signal'>prepare-format</a>" : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a> |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-v4l2src.description"></a><h2>Description</h2> |
| <div class="refsynopsisdiv"> |
| <h2>Synopsis</h2> |
| <div class="refsect2"> |
| <a name="idp21954384"></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-good-plugins-plugin-video4linux2.html#plugin-video4linux2">video4linux2</a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term">author</span></p></td> |
| <td>Edgard Lima <edgard.lima@indt.org.br>, Stefan Kost <ensonic@users.sf.net></td> |
| </tr> |
| <tr> |
| <td><p><span class="term">class</span></p></td> |
| <td>Source/Video</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="idp18838560"></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>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)RGB15, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string)RGB16, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string)BGR, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string)RGB, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string)BGRx, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string)RGBx, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string)GRAY8, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string)YVU9, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string)YV12, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string)YUY2, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string)UYVY, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string)Y42B, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string)Y41B, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string)NV12, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string)NV21, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string)YUV9, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string)I420, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-bayer, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> image/jpeg, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> image/jpeg, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> image/jpeg, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-dv, systemstream=(boolean)true, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/mpegts</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/mpeg, mpegversion=(int)4, systemstream=(boolean)false, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-h263, variant=(string)itu, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-h264, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-sonix, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-pwc1, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-pwc2, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-raw, format=(string)YVYU, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ]</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <p> |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-v4l2src.details"></a><h2>Details</h2> |
| <div class="refsect2"> |
| <a name="GstV4l2Src-struct"></a><h3>struct GstV4l2Src</h3> |
| <pre class="programlisting">struct GstV4l2Src;</pre> |
| <p> |
| </p> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-v4l2src.property-details"></a><h2>Property Details</h2> |
| <div class="refsect2"> |
| <a name="GstV4l2Src--device"></a><h3>The <code class="literal">"device"</code> property</h3> |
| <pre class="programlisting"> "device" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Read / Write</pre> |
| <p>Device location.</p> |
| <p>Default value: "/dev/video0"</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstV4l2Src--device-name"></a><h3>The <code class="literal">"device-name"</code> property</h3> |
| <pre class="programlisting"> "device-name" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Read</pre> |
| <p>Name of the device.</p> |
| <p>Default value: NULL</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstV4l2Src--flags"></a><h3>The <code class="literal">"flags"</code> property</h3> |
| <pre class="programlisting"> "flags" <span class="type">GstV4l2DeviceTypeFlags</span> : Read</pre> |
| <p>Device type flags.</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstV4l2Src--queue-size"></a><h3>The <code class="literal">"queue-size"</code> property</h3> |
| <pre class="programlisting"> "queue-size" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> : Read / Write</pre> |
| <p>Number of buffers to be enqueud in the driver in streaming mode.</p> |
| <p>Allowed values: [1,16]</p> |
| <p>Default value: 2</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstV4l2Src--always-copy"></a><h3>The <code class="literal">"always-copy"</code> property</h3> |
| <pre class="programlisting"> "always-copy" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write</pre> |
| <p>If the buffer will or not be used directly from mmap.</p> |
| <p>Default value: TRUE</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstV4l2Src--device-fd"></a><h3>The <code class="literal">"device-fd"</code> property</h3> |
| <pre class="programlisting"> "device-fd" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read</pre> |
| <p>File descriptor of the device.</p> |
| <p>Allowed values: >= G_MAXULONG</p> |
| <p>Default value: -1</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstV4l2Src--brightness"></a><h3>The <code class="literal">"brightness"</code> property</h3> |
| <pre class="programlisting"> "brightness" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> |
| <p>Picture brightness, or more precisely, the black level.</p> |
| <p>Default value: 0</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstV4l2Src--contrast"></a><h3>The <code class="literal">"contrast"</code> property</h3> |
| <pre class="programlisting"> "contrast" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> |
| <p>Picture contrast or luma gain.</p> |
| <p>Default value: 0</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstV4l2Src--decimate"></a><h3>The <code class="literal">"decimate"</code> property</h3> |
| <pre class="programlisting"> "decimate" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> |
| <p>Only use every nth frame.</p> |
| <p>Allowed values: >= 1</p> |
| <p>Default value: 1</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstV4l2Src--hue"></a><h3>The <code class="literal">"hue"</code> property</h3> |
| <pre class="programlisting"> "hue" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> |
| <p>Hue or color balance.</p> |
| <p>Default value: 0</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstV4l2Src--saturation"></a><h3>The <code class="literal">"saturation"</code> property</h3> |
| <pre class="programlisting"> "saturation" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> |
| <p>Picture color saturation or chroma gain.</p> |
| <p>Default value: 0</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstV4l2Src--norm"></a><h3>The <code class="literal">"norm"</code> property</h3> |
| <pre class="programlisting"> "norm" <span class="type">V4L2_TV_norms</span> : Read / Write</pre> |
| <p>video standard.</p> |
| <p>Default value: none</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstV4l2Src--io-mode"></a><h3>The <code class="literal">"io-mode"</code> property</h3> |
| <pre class="programlisting"> "io-mode" <span class="type">GstV4l2IOMode</span> : Read / Write</pre> |
| <p>I/O mode.</p> |
| <p>Default value: GST_V4L2_IO_AUTO</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstV4l2Src--extra-controls"></a><h3>The <code class="literal">"extra-controls"</code> property</h3> |
| <pre class="programlisting"> "extra-controls" <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstStructure.html#GstStructure"><span class="type">GstStructure</span></a>* : Read / Write</pre> |
| <p>Extra v4l2 controls (CIDs) for the device.</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstV4l2Src--force-aspect-ratio"></a><h3>The <code class="literal">"force-aspect-ratio"</code> property</h3> |
| <pre class="programlisting"> "force-aspect-ratio" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write</pre> |
| <p>When enabled, the pixel aspect ratio will be enforced.</p> |
| <p>Default value: TRUE</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstV4l2Src--pixel-aspect-ratio"></a><h3>The <code class="literal">"pixel-aspect-ratio"</code> property</h3> |
| <pre class="programlisting"> "pixel-aspect-ratio" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Read / Write</pre> |
| <p>Overwrite the pixel aspect ratio of the device.</p> |
| <p>Default value: "1/1"</p> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-v4l2src.signal-details"></a><h2>Signal Details</h2> |
| <div class="refsect2"> |
| <a name="GstV4l2Src-prepare-format"></a><h3>The <code class="literal">"prepare-format"</code> signal</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="gst-plugins-good-plugins-v4l2src.html#GstV4l2Src"><span class="type">GstV4l2Src</span></a> *gstv4l2src, |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> arg1, |
| <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> *arg2, |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data) : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a></pre> |
| <p> |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>gstv4l2src</code></em> :</span></p></td> |
| <td>the object which received the signal.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td> |
| <td>user data set when the signal handler was connected.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| </div> |
| <div class="footer"> |
| <hr> |
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