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<tr><td colspan="5" class="shortcuts"><nobr><a href="#id2617532" class="shortcut">Top</a>
 | 
<a href="#id2509577" class="shortcut">Description</a>
 | 
<a href="#id2617486" class="shortcut">Object Hierarchy</a>
 | 
<a href="#id2592459" class="shortcut">Properties</a></nobr></td></tr>
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<div class="refentry" lang="en">
<a name="gst-plugins-base-plugins-videoscale"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2>
<a name="id2617532"></a><span class="refentrytitle">videoscale</span>
</h2>
<p>videoscale — Resizes video</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<a name="GstVideoScale"></a><pre class="synopsis">
<a href="gst-plugins-base-plugins-videoscale.html#GstVideoScale-struct">GstVideoScale</a>;
enum <a href="gst-plugins-base-plugins-videoscale.html#GstVideoScaleMethod">GstVideoScaleMethod</a>;
</pre>
</div>
<div class="refsect1" lang="en">
<a name="id2617486"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
GObject
+----GstObject
+----GstElement
+----GstBaseTransform
+----GstVideoScale
</pre>
</div>
<div class="refsect1" lang="en">
<a name="id2592459"></a><h2>Properties</h2>
<pre class="synopsis">
"<a href="gst-plugins-base-plugins-videoscale.html#GstVideoScale--method">method</a>" <a href="gst-plugins-base-plugins-videoscale.html#GstVideoScaleMethod">GstVideoScaleMethod</a> : Read / Write
</pre>
</div>
<div class="refsect1" lang="en">
<a name="id2509577"></a><h2>Description</h2>
<p>
</p>
<div class="refsect2" lang="en">
<a name="id2586169"></a><p>
This element resizes video frames. By default the element will try to
negotiate to the same size on the source and sinkpad so that no scaling
is needed. It is therefore safe to insert this element in a pipeline to
get more robust behaviour without any cost if no scaling is needed.
</p>
<p>
This element supports a wide range of color spaces including various YUV and
RGB formats and is therefore generally able to operate anywhere in a
pipeline.
</p>
<h3>Example pipelines</h3>
<p>
</p>
<pre class="programlisting">
gst-launch -v filesrc location=videotestsrc.ogg ! oggdemux ! theoradec ! ffmpegcolorspace ! videoscale ! ximagesink
</pre>
<p>
Decode an Ogg/Theora and display the video using ximagesink. Since
ximagesink cannot perform scaling, the video scaling will be performed by
videoscale when you resize the video window.
To create the test Ogg/Theora file refer to the documentation of theoraenc.
</p>
<p>
</p>
<pre class="programlisting">
gst-launch -v filesrc location=videotestsrc.ogg ! oggdemux ! theoradec ! videoscale ! video/x-raw-yuv, width=50 ! xvimagesink
</pre>
<p>
Decode an Ogg/Theora and display the video using xvimagesink with a width of
50.
</p>
</div>
<p>
</p>
<p>
Last reviewed on 2006-03-02 (0.10.4)</p>
<div class="refsect2" lang="en">
<a name="id2585516"></a><h3>Element Information</h3>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><span class="term">plugin</span></td>
<td>
<a href="gst-plugins-base-plugins-plugin-videoscale.html#plugin-videoscale">videoscale</a>
</td>
</tr>
<tr>
<td><span class="term">author</span></td>
<td>Wim Taymans <wim.taymans@chello.be></td>
</tr>
<tr>
<td><span class="term">class</span></td>
<td>Filter/Effect/Video</td>
</tr>
</tbody>
</table></div>
<h3>Element Pads</h3>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><span class="term">name</span></td>
<td>sink</td>
</tr>
<tr>
<td><span class="term">direction</span></td>
<td>sink</td>
</tr>
<tr>
<td><span class="term">presence</span></td>
<td>always</td>
</tr>
<tr>
<td><span class="term">details</span></td>
<td>video/x-raw-rgb, bpp=(int)32, depth=(int)24, endianness=(int)4321, red_mask=(int)-16777216, green_mask=(int)16711680, blue_mask=(int)65280, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)32, depth=(int)24, endianness=(int)4321, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)32, depth=(int)24, endianness=(int)4321, red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)32, depth=(int)24, endianness=(int)4321, red_mask=(int)255, green_mask=(int)65280, blue_mask=(int)16711680, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)32, depth=(int)32, endianness=(int)4321, red_mask=(int)-16777216, green_mask=(int)16711680, blue_mask=(int)65280, alpha_mask=(int)255, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)32, depth=(int)32, endianness=(int)4321, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255, alpha_mask=(int)-16777216, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)32, depth=(int)32, endianness=(int)4321, red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216, alpha_mask=(int)255, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)32, depth=(int)32, endianness=(int)4321, red_mask=(int)255, green_mask=(int)65280, blue_mask=(int)16711680, alpha_mask=(int)-16777216, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)24, depth=(int)24, endianness=(int)4321, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)24, depth=(int)24, endianness=(int)4321, red_mask=(int)255, green_mask=(int)65280, blue_mask=(int)16711680, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-yuv, format=(fourcc)AYUV, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-yuv, format=(fourcc)YUY2, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-yuv, format=(fourcc)YVYU, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-yuv, format=(fourcc)UYVY, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-yuv, format=(fourcc)Y800, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-yuv, format=(fourcc)I420, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-yuv, format=(fourcc)YV12, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)16, depth=(int)16, endianness=(int)1234, red_mask=(int)63488, green_mask=(int)2016, blue_mask=(int)31, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)16, depth=(int)15, endianness=(int)1234, red_mask=(int)31744, green_mask=(int)992, blue_mask=(int)31, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
</tr>
</tbody>
</table></div>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><span class="term">name</span></td>
<td>src</td>
</tr>
<tr>
<td><span class="term">direction</span></td>
<td>source</td>
</tr>
<tr>
<td><span class="term">presence</span></td>
<td>always</td>
</tr>
<tr>
<td><span class="term">details</span></td>
<td>video/x-raw-rgb, bpp=(int)32, depth=(int)24, endianness=(int)4321, red_mask=(int)-16777216, green_mask=(int)16711680, blue_mask=(int)65280, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)32, depth=(int)24, endianness=(int)4321, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)32, depth=(int)24, endianness=(int)4321, red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)32, depth=(int)24, endianness=(int)4321, red_mask=(int)255, green_mask=(int)65280, blue_mask=(int)16711680, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)32, depth=(int)32, endianness=(int)4321, red_mask=(int)-16777216, green_mask=(int)16711680, blue_mask=(int)65280, alpha_mask=(int)255, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)32, depth=(int)32, endianness=(int)4321, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255, alpha_mask=(int)-16777216, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)32, depth=(int)32, endianness=(int)4321, red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216, alpha_mask=(int)255, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)32, depth=(int)32, endianness=(int)4321, red_mask=(int)255, green_mask=(int)65280, blue_mask=(int)16711680, alpha_mask=(int)-16777216, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)24, depth=(int)24, endianness=(int)4321, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)24, depth=(int)24, endianness=(int)4321, red_mask=(int)255, green_mask=(int)65280, blue_mask=(int)16711680, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-yuv, format=(fourcc)AYUV, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-yuv, format=(fourcc)YUY2, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-yuv, format=(fourcc)YVYU, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-yuv, format=(fourcc)UYVY, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-yuv, format=(fourcc)Y800, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-yuv, format=(fourcc)I420, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-yuv, format=(fourcc)YV12, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)16, depth=(int)16, endianness=(int)1234, red_mask=(int)63488, green_mask=(int)2016, blue_mask=(int)31, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]; video/x-raw-rgb, bpp=(int)16, depth=(int)15, endianness=(int)1234, red_mask=(int)31744, green_mask=(int)992, blue_mask=(int)31, width=(int)[ 2, 2147483647 ], height=(int)[ 2, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
</tr>
</tbody>
</table></div>
</div>
<p>
</p>
</div>
<div class="refsect1" lang="en">
<a name="id2615881"></a><h2>Details</h2>
<div class="refsect2" lang="en">
<a name="id2617093"></a><h3>
<a name="GstVideoScale-struct"></a>GstVideoScale</h3>
<a class="indexterm" name="id2617104"></a><pre class="programlisting">typedef struct _GstVideoScale GstVideoScale;</pre>
<p>
Opaque data structure</p>
<p>
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2617124"></a><h3>
<a name="GstVideoScaleMethod"></a>enum GstVideoScaleMethod</h3>
<a class="indexterm" name="id2617136"></a><pre class="programlisting">typedef enum {
GST_VIDEO_SCALE_NEAREST,
GST_VIDEO_SCALE_BILINEAR,
GST_VIDEO_SCALE_4TAP
} GstVideoScaleMethod;
</pre>
<p>
The videoscale method to use.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><span class="term"><a name="GST-VIDEO-SCALE-NEAREST:CAPS"></a><code class="literal">GST_VIDEO_SCALE_NEAREST</code></span></td>
<td> use nearest neighbour scaling (fast and ugly)
</td>
</tr>
<tr>
<td><span class="term"><a name="GST-VIDEO-SCALE-BILINEAR:CAPS"></a><code class="literal">GST_VIDEO_SCALE_BILINEAR</code></span></td>
<td> use bilinear scaling (slower but prettier).
</td>
</tr>
<tr>
<td><span class="term"><a name="GST-VIDEO-SCALE-4TAP:CAPS"></a><code class="literal">GST_VIDEO_SCALE_4TAP</code></span></td>
<td> use a 4-tap filter for scaling (slow).
</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<div class="refsect1" lang="en">
<a name="id2617227"></a><h2>Property Details</h2>
<div class="refsect2" lang="en">
<a name="id2617237"></a><h3>
<a name="GstVideoScale--method"></a>The "<code class="literal">method</code>" property</h3>
<a class="indexterm" name="id2617251"></a><pre class="programlisting"> "method" <a href="gst-plugins-base-plugins-videoscale.html#GstVideoScaleMethod">GstVideoScaleMethod</a> : Read / Write</pre>
<p>method.</p>
<p>Default value: Nearest Neighbour</p>
</div>
</div>
<div class="refsect1" lang="en">
<a name="id2617278"></a><h2>See Also</h2>
videorate, ffmpegcolorspace
</div>
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