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<h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-monoscope.top_of_page"></a>monoscope</span></h2>
<p>monoscope — Displays a highly stabilised waveform of audio input</p>
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<a name="gst-plugins-good-plugins-monoscope.other"></a><h2>Types and Values</h2>
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<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="gst-plugins-good-plugins-monoscope.html#GstMonoscope" title="struct GstMonoscope">GstMonoscope</a></td>
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<div class="refsect1">
<a name="gst-plugins-good-plugins-monoscope.description"></a><h2>Description</h2>
<p>Monoscope is an audio visualisation element. It creates a coloured
curve of the audio signal like on an oscilloscope.</p>
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<a name="id-1.2.78.4.3"></a><h3>Example launch line</h3>
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<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 audiotestsrc <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> monoscope <span class="gtkdoc opt">!</span> videoconvert <span class="gtkdoc opt">!</span> ximagesink</pre></td>
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<h2>Synopsis</h2>
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<a name="id-1.2.78.4.4.1"></a><h3>Element Information</h3>
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<td><p><span class="term">plugin</span></p></td>
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<a class="link" href="gst-plugins-good-plugins-plugin-monoscope.html#plugin-monoscope">monoscope</a>
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<td><p><span class="term">author</span></p></td>
<td>Richard Boulton <richard@tartarus.org></td>
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<td><p><span class="term">class</span></p></td>
<td>Visualization</td>
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<a name="id-1.2.78.4.4.2"></a><h3>Element Pads</h3>
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<td><p><span class="term">name</span></p></td>
<td>sink</td>
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<td><p><span class="term">direction</span></p></td>
<td>sink</td>
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<td><p><span class="term">presence</span></p></td>
<td>always</td>
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<td><p><span class="term">details</span></p></td>
<td>audio/x-raw, format=(string)S16LE, rate=(int)[ 8000, 96000 ], channels=(int)1, layout=(string)interleaved</td>
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<td><p><span class="term">name</span></p></td>
<td>src</td>
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<td><p><span class="term">direction</span></p></td>
<td>source</td>
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<td><p><span class="term">presence</span></p></td>
<td>always</td>
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<td><p><span class="term">details</span></p></td>
<td>video/x-raw, format=(string)BGRx, width=(int)256, height=(int)128, framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
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<div class="refsect1">
<a name="gst-plugins-good-plugins-monoscope.functions_details"></a><h2>Functions</h2>
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<div class="refsect1">
<a name="gst-plugins-good-plugins-monoscope.other_details"></a><h2>Types and Values</h2>
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<a name="GstMonoscope"></a><h3>struct GstMonoscope</h3>
<pre class="programlisting">struct GstMonoscope {
GstElement element;
/* pads */
GstPad *sinkpad;
GstPad *srcpad;
GstAdapter *adapter;
guint64 next_ts; /* expected timestamp of the next frame */
guint64 frame_duration; /* video frame duration */
gint rate; /* sample rate */
guint bps; /* bytes per sample */
guint spf; /* samples per video frame */
GstBufferPool *pool;
GstSegment segment;
/* QoS stuff *//* with LOCK */
gdouble proportion;
GstClockTime earliest_time;
/* video state */
gint fps_num;
gint fps_denom;
gint width;
gint height;
guint outsize;
/* visualisation state */
struct monoscope_state *visstate;
};
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<div class="refsect1">
<a name="gst-plugins-good-plugins-monoscope.see-also"></a><h2>See Also</h2>
<p>goom</p>
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