<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>videotestsrc</title> <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> <link rel="home" href="index.html" title="GStreamer Base Plugins 0.10 Plugins Reference Manual"> <link rel="up" href="ch01.html" title="gst-plugins-base Elements"> <link rel="prev" href="gst-plugins-base-plugins-videoscale.html" title="videoscale"> <link rel="next" href="gst-plugins-base-plugins-volume.html" title="volume"> <meta name="generator" content="GTK-Doc V1.18 (XML mode)"> <link rel="stylesheet" href="style.css" type="text/css"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"> <tr valign="middle"> <td><a accesskey="p" href="gst-plugins-base-plugins-videoscale.html"><img src="left.png" 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name="gst-plugins-base-plugins-videotestsrc"></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-videotestsrc.top_of_page"></a>videotestsrc</span></h2> <p>videotestsrc — Creates a test video stream</p> </td> <td valign="top" align="right"></td> </tr></table></div> <div class="refsynopsisdiv"> <a name="gst-plugins-base-plugins-videotestsrc.synopsis"></a><h2>Synopsis</h2> <a name="GstVideoTestSrc"></a><pre class="synopsis">struct <a class="link" href="gst-plugins-base-plugins-videotestsrc.html#GstVideoTestSrc-struct" title="struct GstVideoTestSrc">GstVideoTestSrc</a>; enum <a class="link" href="gst-plugins-base-plugins-videotestsrc.html#GstVideoTestSrcPattern" title="enum GstVideoTestSrcPattern">GstVideoTestSrcPattern</a>; enum <a class="link" href="gst-plugins-base-plugins-videotestsrc.html#GstVideoTestSrcColorSpec" title="enum GstVideoTestSrcColorSpec">GstVideoTestSrcColorSpec</a>; </pre> </div> <div class="refsect1"> <a name="gst-plugins-base-plugins-videotestsrc.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://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> +----GstVideoTestSrc </pre> </div> <div class="refsect1"> <a name="gst-plugins-base-plugins-videotestsrc.properties"></a><h2>Properties</h2> <pre class="synopsis"> "<a class="link" href="gst-plugins-base-plugins-videotestsrc.html#GstVideoTestSrc--pattern" title='The "pattern" property'>pattern</a>" <a class="link" href="gst-plugins-base-plugins-videotestsrc.html#GstVideoTestSrcPattern" title="enum GstVideoTestSrcPattern"><span class="type">GstVideoTestSrcPattern</span></a> : Read / Write "<a class="link" href="gst-plugins-base-plugins-videotestsrc.html#GstVideoTestSrc--timestamp-offset" title='The "timestamp-offset" property'>timestamp-offset</a>" <span class="type">gint64</span> : Read / Write "<a class="link" href="gst-plugins-base-plugins-videotestsrc.html#GstVideoTestSrc--is-live" title='The "is-live" property'>is-live</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-videotestsrc.html#GstVideoTestSrc--peer-alloc" title='The "peer-alloc" property'>peer-alloc</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-videotestsrc.html#GstVideoTestSrc--colorspec" title='The "colorspec" property'>colorspec</a>" <a class="link" href="gst-plugins-base-plugins-videotestsrc.html#GstVideoTestSrcColorSpec" title="enum GstVideoTestSrcColorSpec"><span class="type">GstVideoTestSrcColorSpec</span></a> : Read / Write "<a class="link" href="gst-plugins-base-plugins-videotestsrc.html#GstVideoTestSrc--k0" title='The "k0" property'>k0</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-videotestsrc.html#GstVideoTestSrc--kt" title='The "kt" property'>kt</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-videotestsrc.html#GstVideoTestSrc--kt2" title='The "kt2" property'>kt2</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-videotestsrc.html#GstVideoTestSrc--kx" title='The "kx" property'>kx</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-videotestsrc.html#GstVideoTestSrc--kx2" title='The "kx2" property'>kx2</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-videotestsrc.html#GstVideoTestSrc--kxt" title='The "kxt" property'>kxt</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-videotestsrc.html#GstVideoTestSrc--kxy" title='The "kxy" property'>kxy</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-videotestsrc.html#GstVideoTestSrc--ky" title='The "ky" property'>ky</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-videotestsrc.html#GstVideoTestSrc--ky2" title='The "ky2" property'>ky2</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-videotestsrc.html#GstVideoTestSrc--kyt" title='The "kyt" property'>kyt</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-videotestsrc.html#GstVideoTestSrc--xoffset" title='The "xoffset" property'>xoffset</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-videotestsrc.html#GstVideoTestSrc--yoffset" title='The "yoffset" property'>yoffset</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-videotestsrc.html#GstVideoTestSrc--background-color" title='The "background-color" property'>background-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-videotestsrc.html#GstVideoTestSrc--foreground-color" title='The "foreground-color" property'>foreground-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-videotestsrc.html#GstVideoTestSrc--horizontal-speed" title='The "horizontal-speed" property'>horizontal-speed</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write </pre> </div> <div class="refsect1"> <a name="gst-plugins-base-plugins-videotestsrc.description"></a><h2>Description</h2> <p> The videotestsrc element is used to produce test video data in a wide variety of formats. The video test data produced can be controlled with the "pattern" property. </p> <p> </p> <div class="refsect2"> <a name="idp15476256"></a><h3>Example launch line</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>v videotestsrc pattern<span class="gtkdoc opt">=</span>snow <span class="gtkdoc opt">!</span> ximagesink</pre></td> </tr> </tbody> </table> </div> Shows random noise in an X window. </div> <p> </p> <div class="refsynopsisdiv"> <h2>Synopsis</h2> <div class="refsect2"> <a name="idp15473888"></a><h3>Element Information</h3> <div class="variablelist"><table border="0"> <col align="left" valign="top"> <tbody> <tr> <td><p><span class="term">plugin</span></p></td> <td> <a class="link" href="gst-plugins-base-plugins-plugin-videotestsrc.html#plugin-videotestsrc">videotestsrc</a> </td> </tr> <tr> <td><p><span class="term">author</span></p></td> <td>David A. Schleef <ds@schleef.org></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="idp15465088"></a><h3>Element Pads</h3> <div class="variablelist"><table border="0"> <col align="left" valign="top"> <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-yuv, format=(fourcc)YUY2, color-matrix=(string){ sdtv, hdtv }, chroma-site=(string){ mpeg2, jpeg }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)UYVY, color-matrix=(string){ sdtv, hdtv }, chroma-site=(string){ mpeg2, jpeg }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)YVYU, color-matrix=(string){ sdtv, hdtv }, chroma-site=(string){ mpeg2, jpeg }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)v308, color-matrix=(string){ sdtv, hdtv }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)AYUV, color-matrix=(string){ sdtv, hdtv }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)v210, color-matrix=(string){ sdtv, hdtv }, chroma-site=(string){ mpeg2, jpeg }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)v216, color-matrix=(string){ sdtv, hdtv }, chroma-site=(string){ mpeg2, jpeg }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)UYVP, color-matrix=(string){ sdtv, hdtv }, chroma-site=(string){ mpeg2, jpeg }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)AY64, color-matrix=(string){ sdtv, hdtv }, chroma-site=(string){ mpeg2, jpeg }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)YVU9, color-matrix=(string){ sdtv, hdtv }, chroma-site=(string){ mpeg2, jpeg }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)YUV9, color-matrix=(string){ sdtv, hdtv }, chroma-site=(string){ mpeg2, jpeg }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)YV12, color-matrix=(string){ sdtv, hdtv }, chroma-site=(string){ mpeg2, jpeg }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)I420, color-matrix=(string){ sdtv, hdtv }, chroma-site=(string){ mpeg2, jpeg }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)NV12, color-matrix=(string){ sdtv, hdtv }, chroma-site=(string){ mpeg2, jpeg }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)NV21, color-matrix=(string){ sdtv, hdtv }, chroma-site=(string){ mpeg2, jpeg }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)Y41B, color-matrix=(string){ sdtv, hdtv }, chroma-site=(string){ mpeg2, jpeg }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)Y42B, color-matrix=(string){ sdtv, hdtv }, chroma-site=(string){ mpeg2, jpeg }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)Y444, color-matrix=(string){ sdtv, hdtv }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-yuv, format=(fourcc)Y800, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-gray, bpp=(int)8, depth=(int)8, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-gray, bpp=(int)16, depth=(int)16, endianness=(int)1234, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, depth=(int)24, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, depth=(int)24, red_mask=(int)255, green_mask=(int)65280, blue_mask=(int)16711680, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, depth=(int)24, red_mask=(int)-16777216, green_mask=(int)16711680, blue_mask=(int)65280, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, depth=(int)24, red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, depth=(int)32, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255, alpha_mask=(int)-16777216, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, depth=(int)32, red_mask=(int)255, green_mask=(int)65280, blue_mask=(int)16711680, alpha_mask=(int)-16777216, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, depth=(int)32, red_mask=(int)-16777216, green_mask=(int)16711680, blue_mask=(int)65280, alpha_mask=(int)255, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, depth=(int)32, red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216, alpha_mask=(int)255, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-rgb, bpp=(int)24, endianness=(int)4321, depth=(int)24, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-rgb, bpp=(int)24, endianness=(int)4321, depth=(int)24, red_mask=(int)255, green_mask=(int)65280, blue_mask=(int)16711680, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-rgb, bpp=(int)16, endianness=(int)1234, depth=(int)16, red_mask=(int)63488, green_mask=(int)2016, blue_mask=(int)31, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-rgb, bpp=(int)16, endianness=(int)1234, depth=(int)15, red_mask=(int)31744, green_mask=(int)992, blue_mask=(int)31, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-rgb, bpp=(int)64, endianness=(int)4321, depth=(int)64, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-bayer, format=(string)bggr, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-bayer, format=(string)rggb, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-bayer, format=(string)grbg, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> </tr> <tr> <td><p><span class="term"></span></p></td> <td> video/x-raw-bayer, format=(string)gbrg, 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-videotestsrc.details"></a><h2>Details</h2> <div class="refsect2"> <a name="GstVideoTestSrc-struct"></a><h3>struct GstVideoTestSrc</h3> <pre class="programlisting">struct GstVideoTestSrc;</pre> <p> Opaque data structure. </p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrcPattern"></a><h3>enum GstVideoTestSrcPattern</h3> <pre class="programlisting">typedef enum { GST_VIDEO_TEST_SRC_SMPTE, GST_VIDEO_TEST_SRC_SNOW, GST_VIDEO_TEST_SRC_BLACK, GST_VIDEO_TEST_SRC_WHITE, GST_VIDEO_TEST_SRC_RED, GST_VIDEO_TEST_SRC_GREEN, GST_VIDEO_TEST_SRC_BLUE, GST_VIDEO_TEST_SRC_CHECKERS1, GST_VIDEO_TEST_SRC_CHECKERS2, GST_VIDEO_TEST_SRC_CHECKERS4, GST_VIDEO_TEST_SRC_CHECKERS8, GST_VIDEO_TEST_SRC_CIRCULAR, GST_VIDEO_TEST_SRC_BLINK, GST_VIDEO_TEST_SRC_SMPTE75, GST_VIDEO_TEST_SRC_ZONE_PLATE, GST_VIDEO_TEST_SRC_GAMUT, GST_VIDEO_TEST_SRC_CHROMA_ZONE_PLATE, GST_VIDEO_TEST_SRC_SOLID, GST_VIDEO_TEST_SRC_BALL, GST_VIDEO_TEST_SRC_SMPTE100, GST_VIDEO_TEST_SRC_BAR } GstVideoTestSrcPattern; </pre> <p> The test pattern to produce. </p> <p> The Gamut pattern creates a checkerboard pattern of colors at the edge of the YCbCr gamut and nearby colors that are out of gamut. The pattern is divided into 4 regions: black, white, red, and blue. After conversion to RGB, the out-of-gamut colors should be converted to the same value as their in-gamut neighbors. If the checkerboard pattern is still visible after conversion, this indicates a faulty conversion. Image manipulation, such as adjusting contrast or brightness, can also cause the pattern to be visible. </p> <p> The Zone Plate pattern is based on BBC R&D Report 1978/23, and can be used to test spatial frequency response of a system. This pattern generator is controlled by the xoffset and yoffset parameters and also by all the parameters starting with 'k'. The default parameters produce a grey pattern. Try 'videotestsrc pattern=zone-plate kx2=20 ky2=20 kt=1' to produce something interesting. </p> <div class="variablelist"><table border="0"> <col align="left" valign="top"> <tbody> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-SMPTE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_SMPTE</code></span></p></td> <td>A standard SMPTE test pattern </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-SNOW:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_SNOW</code></span></p></td> <td>Random noise </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-BLACK:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_BLACK</code></span></p></td> <td>A black image </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-WHITE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_WHITE</code></span></p></td> <td>A white image </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-RED:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_RED</code></span></p></td> <td>A red image </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-GREEN:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_GREEN</code></span></p></td> <td>A green image </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-BLUE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_BLUE</code></span></p></td> <td>A blue image </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-CHECKERS1:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_CHECKERS1</code></span></p></td> <td>Checkers pattern (1px) </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-CHECKERS2:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_CHECKERS2</code></span></p></td> <td>Checkers pattern (2px) </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-CHECKERS4:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_CHECKERS4</code></span></p></td> <td>Checkers pattern (4px) </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-CHECKERS8:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_CHECKERS8</code></span></p></td> <td>Checkers pattern (8px) </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-CIRCULAR:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_CIRCULAR</code></span></p></td> <td>Circular pattern </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-BLINK:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_BLINK</code></span></p></td> <td>Alternate between black and white </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-SMPTE75:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_SMPTE75</code></span></p></td> <td>SMPTE test pattern (75% color bars) </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-ZONE-PLATE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_ZONE_PLATE</code></span></p></td> <td>Zone plate </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-GAMUT:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_GAMUT</code></span></p></td> <td>Gamut checking pattern </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-CHROMA-ZONE-PLATE:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_CHROMA_ZONE_PLATE</code></span></p></td> <td>Chroma zone plate </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-SOLID:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_SOLID</code></span></p></td> <td> </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-BALL:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_BALL</code></span></p></td> <td>Moving ball </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-SMPTE100:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_SMPTE100</code></span></p></td> <td>SMPTE test pattern (100% color bars) </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-BAR:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_BAR</code></span></p></td> <td>Bar with foreground color </td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrcColorSpec"></a><h3>enum GstVideoTestSrcColorSpec</h3> <pre class="programlisting">typedef enum { GST_VIDEO_TEST_SRC_BT601, GST_VIDEO_TEST_SRC_BT709 } GstVideoTestSrcColorSpec; </pre> <p> The color specification to use. </p> <div class="variablelist"><table border="0"> <col align="left" valign="top"> <tbody> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-BT601:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_BT601</code></span></p></td> <td>ITU-R Rec. BT.601/BT.470 (SD) </td> </tr> <tr> <td><p><a name="GST-VIDEO-TEST-SRC-BT709:CAPS"></a><span class="term"><code class="literal">GST_VIDEO_TEST_SRC_BT709</code></span></p></td> <td>ITU-R Rec. BT.709 (HD) </td> </tr> </tbody> </table></div> </div> </div> <div class="refsect1"> <a name="gst-plugins-base-plugins-videotestsrc.property-details"></a><h2>Property Details</h2> <div class="refsect2"> <a name="GstVideoTestSrc--pattern"></a><h3>The <code class="literal">"pattern"</code> property</h3> <pre class="programlisting"> "pattern" <a class="link" href="gst-plugins-base-plugins-videotestsrc.html#GstVideoTestSrcPattern" title="enum GstVideoTestSrcPattern"><span class="type">GstVideoTestSrcPattern</span></a> : Read / Write</pre> <p>Type of test pattern to generate.</p> <p>Default value: SMPTE 100% color bars</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--timestamp-offset"></a><h3>The <code class="literal">"timestamp-offset"</code> property</h3> <pre class="programlisting"> "timestamp-offset" <span class="type">gint64</span> : Read / Write</pre> <p>An offset added to timestamps set on buffers (in ns).</p> <p>Default value: 0</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--is-live"></a><h3>The <code class="literal">"is-live"</code> property</h3> <pre class="programlisting"> "is-live" <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 act as a live source.</p> <p>Default value: FALSE</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--peer-alloc"></a><h3>The <code class="literal">"peer-alloc"</code> property</h3> <pre class="programlisting"> "peer-alloc" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write</pre> <p>Ask the peer to allocate an output buffer.</p> <p>Default value: TRUE</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--colorspec"></a><h3>The <code class="literal">"colorspec"</code> property</h3> <pre class="programlisting"> "colorspec" <a class="link" href="gst-plugins-base-plugins-videotestsrc.html#GstVideoTestSrcColorSpec" title="enum GstVideoTestSrcColorSpec"><span class="type">GstVideoTestSrcColorSpec</span></a> : Read / Write</pre> <p>Generate video in the given color specification (Deprecated: use a caps filter with video/x-raw-yuv,color-matrix="sdtv" or "hdtv" instead).</p> <p>Default value: ITU-R Rec. BT.601</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--k0"></a><h3>The <code class="literal">"k0"</code> property</h3> <pre class="programlisting"> "k0" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> <p>Zoneplate zero order phase, for generating plain fields or phase offsets.</p> <p>Default value: 0</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--kt"></a><h3>The <code class="literal">"kt"</code> property</h3> <pre class="programlisting"> "kt" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> <p>Zoneplate 1st order t phase, for generating phase rotation as a function of time.</p> <p>Default value: 0</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--kt2"></a><h3>The <code class="literal">"kt2"</code> property</h3> <pre class="programlisting"> "kt2" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> <p>Zoneplate 2nd order t phase, t*t/256 cycles per picture.</p> <p>Default value: 0</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--kx"></a><h3>The <code class="literal">"kx"</code> property</h3> <pre class="programlisting"> "kx" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> <p>Zoneplate 1st order x phase, for generating constant horizontal frequencies.</p> <p>Default value: 0</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--kx2"></a><h3>The <code class="literal">"kx2"</code> property</h3> <pre class="programlisting"> "kx2" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> <p>Zoneplate 2nd order x phase, normalised to kx2/256 cycles per horizontal pixel at width/2 from origin.</p> <p>Default value: 0</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--kxt"></a><h3>The <code class="literal">"kxt"</code> property</h3> <pre class="programlisting"> "kxt" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> <p>Zoneplate x*t product phase, normalised to kxy/256 cycles per vertical pixel at width/2 from origin.</p> <p>Default value: 0</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--kxy"></a><h3>The <code class="literal">"kxy"</code> property</h3> <pre class="programlisting"> "kxy" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> <p>Zoneplate x*y product phase.</p> <p>Default value: 0</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--ky"></a><h3>The <code class="literal">"ky"</code> property</h3> <pre class="programlisting"> "ky" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> <p>Zoneplate 1st order y phase, for generating contant vertical frequencies.</p> <p>Default value: 0</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--ky2"></a><h3>The <code class="literal">"ky2"</code> property</h3> <pre class="programlisting"> "ky2" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> <p>Zoneplate 2nd order y phase, normailsed to ky2/256 cycles per vertical pixel at height/2 from origin.</p> <p>Default value: 0</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--kyt"></a><h3>The <code class="literal">"kyt"</code> property</h3> <pre class="programlisting"> "kyt" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> <p>Zoneplate y*t product phase.</p> <p>Default value: 0</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--xoffset"></a><h3>The <code class="literal">"xoffset"</code> property</h3> <pre class="programlisting"> "xoffset" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> <p>Zoneplate 2nd order products x offset.</p> <p>Default value: 0</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--yoffset"></a><h3>The <code class="literal">"yoffset"</code> property</h3> <pre class="programlisting"> "yoffset" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> <p>Zoneplate 2nd order products y offset.</p> <p>Default value: 0</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--background-color"></a><h3>The <code class="literal">"background-color"</code> property</h3> <pre class="programlisting"> "background-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 background color of some patterns. Default is black (0xff000000). </p> <p>Default value: 4278190080</p> <p class="since">Since 0.10.31</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--foreground-color"></a><h3>The <code class="literal">"foreground-color"</code> property</h3> <pre class="programlisting"> "foreground-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 solid-color pattern and foreground color of other patterns. Default is white (0xffffffff). </p> <p>Default value: 4294967295</p> <p class="since">Since 0.10.31</p> </div> <hr> <div class="refsect2"> <a name="GstVideoTestSrc--horizontal-speed"></a><h3>The <code class="literal">"horizontal-speed"</code> property</h3> <pre class="programlisting"> "horizontal-speed" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre> <p>Scroll image number of pixels per frame (positive is scroll to the left).</p> <p>Default value: 0</p> </div> </div> </div> <div class="footer"> <hr> Generated by GTK-Doc V1.18</div> </body> </html>