plugins/html/gst-plugins-good-plugins-vp8enc.html

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<a name="gst-plugins-good-plugins-vp8enc"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
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<h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-vp8enc.top_of_page"></a>vp8enc</span></h2>
<p>vp8enc</p>
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<td class="gallery_image" valign="top" align="right"></td>
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<div class="refsect1">
<a name="gst-plugins-good-plugins-vp8enc.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/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--arnr-maxframes" title="The “arnr-maxframes” property">arnr-maxframes</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--arnr-strength" title="The “arnr-strength” property">arnr-strength</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--arnr-type" title="The “arnr-type” property">arnr-type</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--auto-alt-ref" title="The “auto-alt-ref” property">auto-alt-ref</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--buffer-initial-size" title="The “buffer-initial-size” property">buffer-initial-size</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--buffer-optimal-size" title="The “buffer-optimal-size” property">buffer-optimal-size</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--buffer-size" title="The “buffer-size” property">buffer-size</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--cpu-used" title="The “cpu-used” property">cpu-used</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--cq-level" title="The “cq-level” property">cq-level</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint64"><span class="type">gint64</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--deadline" title="The “deadline” property">deadline</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--dropframe-threshold" title="The “dropframe-threshold” property">dropframe-threshold</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><span class="type">GstVP8EncEndUsage</span></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--end-usage" title="The “end-usage” property">end-usage</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><span class="type">GstVP8EncErFlags</span></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--error-resilient" title="The “error-resilient” property">error-resilient</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--lag-in-frames" title="The “lag-in-frames” property">lag-in-frames</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--max-quantizer" title="The “max-quantizer” property">max-quantizer</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--min-quantizer" title="The “min-quantizer” property">min-quantizer</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--multipass-cache-file" title="The “multipass-cache-file” property">multipass-cache-file</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><span class="type">GstVP8EncMultipassMode</span></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--multipass-mode" title="The “multipass-mode” property">multipass-mode</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--noise-sensitivity" title="The “noise-sensitivity” property">noise-sensitivity</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--resize-allowed" title="The “resize-allowed” property">resize-allowed</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--resize-down-threshold" title="The “resize-down-threshold” property">resize-down-threshold</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--resize-up-threshold" title="The “resize-up-threshold” property">resize-up-threshold</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--sharpness" title="The “sharpness” property">sharpness</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--static-threshold" title="The “static-threshold” property">static-threshold</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--target-bitrate" title="The “target-bitrate” property">target-bitrate</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--threads" title="The “threads” property">threads</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><span class="type">GstVP8EncTokenPartitions</span></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--token-partitions" title="The “token-partitions” property">token-partitions</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><span class="type">GstVP8EncTuning</span></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--tuning" title="The “tuning” property">tuning</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><span class="type">GstVP8EncScalingMode</span></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--horizontal-scaling-mode" title="The “horizontal-scaling-mode” property">horizontal-scaling-mode</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--keyframe-max-dist" title="The “keyframe-max-dist” property">keyframe-max-dist</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><span class="type">GstVP8EncKfMode</span></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--keyframe-mode" title="The “keyframe-mode” property">keyframe-mode</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--max-intra-bitrate" title="The “max-intra-bitrate” property">max-intra-bitrate</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--overshoot" title="The “overshoot” property">overshoot</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a href="/usr/share/gtk-doc/html/gobject/gobject-Value-arrays.html#GValueArray-struct"><span class="type">GValueArray</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--temporal-scalability-layer-id" title="The “temporal-scalability-layer-id” property">temporal-scalability-layer-id</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--temporal-scalability-number-layers" title="The “temporal-scalability-number-layers” property">temporal-scalability-number-layers</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--temporal-scalability-periodicity" title="The “temporal-scalability-periodicity” property">temporal-scalability-periodicity</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a href="/usr/share/gtk-doc/html/gobject/gobject-Value-arrays.html#GValueArray-struct"><span class="type">GValueArray</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--temporal-scalability-rate-decimator" title="The “temporal-scalability-rate-decimator” property">temporal-scalability-rate-decimator</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a href="/usr/share/gtk-doc/html/gobject/gobject-Value-arrays.html#GValueArray-struct"><span class="type">GValueArray</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--temporal-scalability-target-bitrate" title="The “temporal-scalability-target-bitrate” property">temporal-scalability-target-bitrate</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--twopass-vbr-bias" title="The “twopass-vbr-bias” property">twopass-vbr-bias</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--twopass-vbr-maxsection" title="The “twopass-vbr-maxsection” property">twopass-vbr-maxsection</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--twopass-vbr-minsection" title="The “twopass-vbr-minsection” property">twopass-vbr-minsection</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--undershoot" title="The “undershoot” property">undershoot</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><span class="type">GstVP8EncScalingMode</span></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--vertical-scaling-mode" title="The “vertical-scaling-mode” property">vertical-scaling-mode</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><span class="type">GstFraction</span></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8enc.html#GstVP8Enc--timebase" title="The “timebase” property">timebase</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<a name="GstVP8Enc"></a><div class="refsect1">
<a name="gst-plugins-good-plugins-vp8enc.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-good-plugins-vp8enc.html#GstVP8Enc-struct" title="struct GstVP8Enc">GstVP8Enc</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-vp8enc.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a>
    <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
        <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstObject.html#GstObject-struct">GstObject</a>
            <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct">GstElement</a>
                <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gst-plugins-base-libs-1.0/GstVideoEncoder.html#GstVideoEncoder-struct">GstVideoEncoder</a>
                    <span class="lineart">╰──</span> GstVPXEnc
                        <span class="lineart">╰──</span> GstVP8Enc
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-vp8enc.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
<p>
GstVP8Enc implements
 <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstPreset.html#GstPreset-struct">GstPreset</a> and  <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstTagSetter.html#GstTagSetter-struct">GstTagSetter</a>.</p>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-vp8enc.description"></a><h2>Description</h2>
<p>This element encodes raw video into a VP8 stream.</p>
<a class="ulink" href="http://www.webmproject.org" target="_top">VP8</a> is a royalty-free
<p>video codec maintained by <a class="ulink" href="http://www.google.com/" target="_top">Google
</a>. It's the successor of On2 VP3, which was the base of the
Theora video codec.</p>
<p>To control the quality of the encoding, the <span class="type">“target-bitrate”</span>,
<span class="type">“min-quantizer”</span>, <span class="type">“max-quantizer”</span> or <span class="type">“cq-level”</span>
properties can be used. Which one is used depends on the mode selected by
the <span class="type">“end-usage”</span> property.
See <a class="ulink" href="http://www.webmproject.org/docs/encoder-parameters/" target="_top">Encoder Parameters</a>
for explanation, examples for useful encoding parameters and more details
on the encoding parameters.</p>
<div class="refsect2">
<a name="id-1.2.272.8.6"></a><h3>Example pipeline</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 videotestsrc num<span class="gtkdoc opt">-</span>buffers<span class="gtkdoc opt">=</span><span class="number">1000</span> <span class="gtkdoc opt">!</span> vp8enc <span class="gtkdoc opt">!</span> webmmux <span class="gtkdoc opt">!</span> filesink location<span class="gtkdoc opt">=</span>videotestsrc<span class="gtkdoc opt">.</span>webm</pre></td>
      </tr>
    </tbody>
  </table>
</div>
 This example pipeline will encode a test video source to VP8 muxed in an
WebM container.
</div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.272.8.7.1"></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-good-plugins-plugin-vpx.html#plugin-vpx">vpx</a>
          </td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>David Schleef &lt;ds@entropywave.com&gt;, Sebastian Dröge &lt;sebastian.droege@collabora.co.uk&gt;</td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Codec/Encoder/Video</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.272.8.7.2"></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>video/x-raw, format=(string)I420, width=(int)[ 1, 16383 ], height=(int)[ 1, 16383 ], 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-vp8, profile=(string){ 0, 1, 2, 3 }</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-vp8enc.functions_details"></a><h2>Functions</h2>
<p></p>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-vp8enc.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstVP8Enc-struct"></a><h3>struct GstVP8Enc</h3>
<pre class="programlisting">struct GstVP8Enc;</pre>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-vp8enc.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstVP8Enc--arnr-maxframes"></a><h3>The <code class="literal">“arnr-maxframes”</code> property</h3>
<pre class="programlisting">  “arnr-maxframes”           <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>AltRef maximum number of frames.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,15]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--arnr-strength"></a><h3>The <code class="literal">“arnr-strength”</code> property</h3>
<pre class="programlisting">  “arnr-strength”            <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>AltRef strength.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,6]</p>
<p>Default value: 3</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--arnr-type"></a><h3>The <code class="literal">“arnr-type”</code> property</h3>
<pre class="programlisting">  “arnr-type”                <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>AltRef type.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [1,3]</p>
<p>Default value: 3</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--auto-alt-ref"></a><h3>The <code class="literal">“auto-alt-ref”</code> property</h3>
<pre class="programlisting">  “auto-alt-ref”             <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Automatically generate AltRef frames.</p>
<p>Flags: Read / Write</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--buffer-initial-size"></a><h3>The <code class="literal">“buffer-initial-size”</code> property</h3>
<pre class="programlisting">  “buffer-initial-size”      <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Initial client buffer size (ms).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: &gt;= 0</p>
<p>Default value: 4000</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--buffer-optimal-size"></a><h3>The <code class="literal">“buffer-optimal-size”</code> property</h3>
<pre class="programlisting">  “buffer-optimal-size”      <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Optimal client buffer size (ms).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: &gt;= 0</p>
<p>Default value: 5000</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--buffer-size"></a><h3>The <code class="literal">“buffer-size”</code> property</h3>
<pre class="programlisting">  “buffer-size”              <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Client buffer size (ms).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: &gt;= 0</p>
<p>Default value: 6000</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--cpu-used"></a><h3>The <code class="literal">“cpu-used”</code> property</h3>
<pre class="programlisting">  “cpu-used”                 <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>CPU used.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [-16,16]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--cq-level"></a><h3>The <code class="literal">“cq-level”</code> property</h3>
<pre class="programlisting">  “cq-level”                 <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Constrained quality level.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,63]</p>
<p>Default value: 10</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--deadline"></a><h3>The <code class="literal">“deadline”</code> property</h3>
<pre class="programlisting">  “deadline”                 <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint64"><span class="type">gint64</span></a></pre>
<p>Deadline per frame (usec, 0=disabled).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: &gt;= 0</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--dropframe-threshold"></a><h3>The <code class="literal">“dropframe-threshold”</code> property</h3>
<pre class="programlisting">  “dropframe-threshold”      <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Temporal resampling threshold (buf %).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,100]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--end-usage"></a><h3>The <code class="literal">“end-usage”</code> property</h3>
<pre class="programlisting">  “end-usage”                <span class="type">GstVP8EncEndUsage</span></pre>
<p>Rate control mode.</p>
<p>Flags: Read / Write</p>
<p>Default value: Variable Bit Rate (VBR) mode</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--error-resilient"></a><h3>The <code class="literal">“error-resilient”</code> property</h3>
<pre class="programlisting">  “error-resilient”          <span class="type">GstVP8EncErFlags</span></pre>
<p>Error resilience flags.</p>
<p>Flags: Read / Write</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--lag-in-frames"></a><h3>The <code class="literal">“lag-in-frames”</code> property</h3>
<pre class="programlisting">  “lag-in-frames”            <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Maximum number of frames to lag.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,25]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--max-quantizer"></a><h3>The <code class="literal">“max-quantizer”</code> property</h3>
<pre class="programlisting">  “max-quantizer”            <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Maximum Quantizer (worst).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,63]</p>
<p>Default value: 63</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--min-quantizer"></a><h3>The <code class="literal">“min-quantizer”</code> property</h3>
<pre class="programlisting">  “min-quantizer”            <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Minimum Quantizer (best).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,63]</p>
<p>Default value: 4</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--multipass-cache-file"></a><h3>The <code class="literal">“multipass-cache-file”</code> property</h3>
<pre class="programlisting">  “multipass-cache-file”     <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>Multipass cache file. If stream caps reinited, multiple files will be created: file, file.1, file.2, ... and so on.</p>
<p>Flags: Read / Write</p>
<p>Default value: "multipass.cache"</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--multipass-mode"></a><h3>The <code class="literal">“multipass-mode”</code> property</h3>
<pre class="programlisting">  “multipass-mode”           <span class="type">GstVP8EncMultipassMode</span></pre>
<p>Multipass encode mode.</p>
<p>Flags: Read / Write</p>
<p>Default value: One pass encoding (default)</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--noise-sensitivity"></a><h3>The <code class="literal">“noise-sensitivity”</code> property</h3>
<pre class="programlisting">  “noise-sensitivity”        <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Noise sensisivity (frames to blur).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,6]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--resize-allowed"></a><h3>The <code class="literal">“resize-allowed”</code> property</h3>
<pre class="programlisting">  “resize-allowed”           <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Allow spatial resampling.</p>
<p>Flags: Read / Write</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--resize-down-threshold"></a><h3>The <code class="literal">“resize-down-threshold”</code> property</h3>
<pre class="programlisting">  “resize-down-threshold”    <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Downscale threshold (buf %).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,100]</p>
<p>Default value: 60</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--resize-up-threshold"></a><h3>The <code class="literal">“resize-up-threshold”</code> property</h3>
<pre class="programlisting">  “resize-up-threshold”      <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Upscale threshold (buf %).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,100]</p>
<p>Default value: 30</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--sharpness"></a><h3>The <code class="literal">“sharpness”</code> property</h3>
<pre class="programlisting">  “sharpness”                <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Filter sharpness.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,7]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--static-threshold"></a><h3>The <code class="literal">“static-threshold”</code> property</h3>
<pre class="programlisting">  “static-threshold”         <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Motion detection threshold.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: &gt;= 0</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--target-bitrate"></a><h3>The <code class="literal">“target-bitrate”</code> property</h3>
<pre class="programlisting">  “target-bitrate”           <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Target bitrate (in bits/sec).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: &gt;= 0</p>
<p>Default value: 256000</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--threads"></a><h3>The <code class="literal">“threads”</code> property</h3>
<pre class="programlisting">  “threads”                  <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Number of threads to use.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,64]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--token-partitions"></a><h3>The <code class="literal">“token-partitions”</code> property</h3>
<pre class="programlisting">  “token-partitions”         <span class="type">GstVP8EncTokenPartitions</span></pre>
<p>Number of token partitions.</p>
<p>Flags: Read / Write</p>
<p>Default value: One token partition</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--tuning"></a><h3>The <code class="literal">“tuning”</code> property</h3>
<pre class="programlisting">  “tuning”                   <span class="type">GstVP8EncTuning</span></pre>
<p>Tuning.</p>
<p>Flags: Read / Write</p>
<p>Default value: Tune for PSNR</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--horizontal-scaling-mode"></a><h3>The <code class="literal">“horizontal-scaling-mode”</code> property</h3>
<pre class="programlisting">  “horizontal-scaling-mode”  <span class="type">GstVP8EncScalingMode</span></pre>
<p>Horizontal scaling mode.</p>
<p>Flags: Read / Write</p>
<p>Default value: Normal</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--keyframe-max-dist"></a><h3>The <code class="literal">“keyframe-max-dist”</code> property</h3>
<pre class="programlisting">  “keyframe-max-dist”        <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Maximum distance between keyframes (number of frames).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: &gt;= 0</p>
<p>Default value: 128</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--keyframe-mode"></a><h3>The <code class="literal">“keyframe-mode”</code> property</h3>
<pre class="programlisting">  “keyframe-mode”            <span class="type">GstVP8EncKfMode</span></pre>
<p>Keyframe placement.</p>
<p>Flags: Read / Write</p>
<p>Default value: Determine optimal placement automatically</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--max-intra-bitrate"></a><h3>The <code class="literal">“max-intra-bitrate”</code> property</h3>
<pre class="programlisting">  “max-intra-bitrate”        <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Maximum Intra frame bitrate.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: &gt;= 0</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--overshoot"></a><h3>The <code class="literal">“overshoot”</code> property</h3>
<pre class="programlisting">  “overshoot”                <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Datarate overshoot (max) target (%).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,1000]</p>
<p>Default value: 100</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--temporal-scalability-layer-id"></a><h3>The <code class="literal">“temporal-scalability-layer-id”</code> property</h3>
<pre class="programlisting">  “temporal-scalability-layer-id” <a href="/usr/share/gtk-doc/html/gobject/gobject-Value-arrays.html#GValueArray-struct"><span class="type">GValueArray</span></a> *</pre>
<p>Sequence defining coding layer membership.</p>
<p>Flags: Read / Write</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--temporal-scalability-number-layers"></a><h3>The <code class="literal">“temporal-scalability-number-layers”</code> property</h3>
<pre class="programlisting">  “temporal-scalability-number-layers” <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Number of coding layers to use.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [1,5]</p>
<p>Default value: 1</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--temporal-scalability-periodicity"></a><h3>The <code class="literal">“temporal-scalability-periodicity”</code> property</h3>
<pre class="programlisting">  “temporal-scalability-periodicity” <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Length of sequence that defines layer membership periodicity.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,16]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--temporal-scalability-rate-decimator"></a><h3>The <code class="literal">“temporal-scalability-rate-decimator”</code> property</h3>
<pre class="programlisting">  “temporal-scalability-rate-decimator” <a href="/usr/share/gtk-doc/html/gobject/gobject-Value-arrays.html#GValueArray-struct"><span class="type">GValueArray</span></a> *</pre>
<p>Rate decimation factors for each layer.</p>
<p>Flags: Read / Write</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--temporal-scalability-target-bitrate"></a><h3>The <code class="literal">“temporal-scalability-target-bitrate”</code> property</h3>
<pre class="programlisting">  “temporal-scalability-target-bitrate” <a href="/usr/share/gtk-doc/html/gobject/gobject-Value-arrays.html#GValueArray-struct"><span class="type">GValueArray</span></a> *</pre>
<p>Target bitrates for coding layers (one per layer, decreasing).</p>
<p>Flags: Read / Write</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--twopass-vbr-bias"></a><h3>The <code class="literal">“twopass-vbr-bias”</code> property</h3>
<pre class="programlisting">  “twopass-vbr-bias”         <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>CBR/VBR bias (0=CBR, 100=VBR).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,100]</p>
<p>Default value: 50</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--twopass-vbr-maxsection"></a><h3>The <code class="literal">“twopass-vbr-maxsection”</code> property</h3>
<pre class="programlisting">  “twopass-vbr-maxsection”   <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>GOP maximum bitrate (% target).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: &gt;= 0</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--twopass-vbr-minsection"></a><h3>The <code class="literal">“twopass-vbr-minsection”</code> property</h3>
<pre class="programlisting">  “twopass-vbr-minsection”   <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>GOP minimum bitrate (% target).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: &gt;= 0</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--undershoot"></a><h3>The <code class="literal">“undershoot”</code> property</h3>
<pre class="programlisting">  “undershoot”               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Datarate undershoot (min) target (%).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,1000]</p>
<p>Default value: 100</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--vertical-scaling-mode"></a><h3>The <code class="literal">“vertical-scaling-mode”</code> property</h3>
<pre class="programlisting">  “vertical-scaling-mode”    <span class="type">GstVP8EncScalingMode</span></pre>
<p>Vertical scaling mode.</p>
<p>Flags: Read / Write</p>
<p>Default value: Normal</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Enc--timebase"></a><h3>The <code class="literal">“timebase”</code> property</h3>
<pre class="programlisting">  “timebase”                 <span class="type">GstFraction</span></pre>
<p>Fraction of one second that is the shortest interframe time - normally left as zero which will default to the framerate.</p>
<p>Flags: Read / Write</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-vp8enc.see-also"></a><h2>See Also</h2>
<p>vp8dec, webmmux, oggmux</p>
</div>
</div>
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