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<div class="refentry" title="dssiinit">
<a id="dssiinit"></a>
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<a id="IndexDssiinit" class="indexterm"></a>
<div class="refnamediv">
<h2>
<span class="refentrytitle">dssiinit</span>
</h2>
<p>dssiinit — Loads a DSSI or LADSPA plugin.
</p>
</div>
<div class="refsect1" title="Syntax">
<a id="idp18749168"></a>
<h2>Syntax</h2>
<pre class="synopsis">ihandle <span class="command"><strong>dssiinit</strong></span> ilibraryname, iplugindex [, iverbose] </pre>
</div>
<div class="refsect1" title="Description">
<a id="idp18778760"></a>
<h2>Description</h2>
<p><span class="emphasis"><em>dssiinit</em></span> is used to load a DSSI or LADSPA plugin into memory for use with
the other dssi4cs opcodes. Both LADSPA effects and DSSI instruments can be used.</p>
</div>
<div class="refsect1" title="Initialization">
<a id="idp18779816"></a>
<h2>Initialization</h2>
<p><span class="emphasis"><em>ihandle</em></span> - the number which identifies the
plugin, to be passed to other dssi4cs opcodes.</p>
<p><span class="emphasis"><em>ilibraryname</em></span> - the name of the .so (shared object) file to load.</p>
<p><span class="emphasis"><em>iplugindex</em></span> - The index of the plugin to be used.</p>
<p><span class="emphasis"><em>iverbose</em></span> (optional) - show plugin information and
parameters when loading. (default = 1)</p>
<p> <span class="emphasis"><em>dssiinit</em></span> looks for <span class="emphasis"><em>ilibraryname</em></span> on LADSPA_PATH and DSSI_PATH. One of these variables must be set, otherwise <span class="emphasis"><em>dssiinit</em></span> will return an error. LADSPA and DSSI libraries may contain more than one plugin which must be referenced by its index. <span class="emphasis"><em>dssiinit</em></span> then attempts to find plugin index <span class="emphasis"><em>iplugindex</em></span> in the library and load the plugin into memory if it is found. To find out which plugins you have available and their index numbers you can use: <a class="link" href="dssilist.html" title="dssilist"><em class="citetitle">dssilist</em></a>. </p>
<p>If <span class="emphasis"><em>iverbose</em></span> is not 0 (the default), information about the plugin detailing its characteristics and its ports will be shown. This information is important for opcodes like <a class="link" href="dssictls.html" title="dssictls"><em class="citetitle">dssictls</em></a>.</p>
<p>Plugins are set to inactive by default, so you <span class="emphasis"><em>*must*</em></span> use <a class="link" href="dssiactivate.html" title="dssiactivate"><em class="citetitle">dssiactivate</em></a> to get the plugin to produce sound. This is required even if the plugin doesn't provide an activate() function.
</p>
<p>
<span class="emphasis"><em>dssiinit</em></span> may cause audio stream breakups when used in realtime, so it is recommended to load all plugins to be used before playing.</p>
</div>
<div class="refsect1" title="Examples">
<a id="idp18786984"></a>
<h2>Examples</h2>
<p>
Here is an example of the dssinit opcode. It uses the file <a class="ulink" href="examples/dssiinit.csd" target="_top"><em class="citetitle">dssiinit.csd</em></a>.
</p>
<div class="example">
<a id="idp18787976"></a>
<p class="title">
<strong>Example 191. Example of the dssiinit opcode. (Remember to change the Library name)</strong>
</p>
<div class="example-contents">
<pre class="programlisting">
<span class="csdtag"><CsoundSynthesizer></span>
<span class="csdtag"><CsOptions></span>
<span class="comment">; Select audio/midi flags here according to platform</span>
-odac <span class="comment">;;;RT audio out</span>
<span class="comment">;-iadc ;;;uncomment -iadc if RT audio input is needed too</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o dssiinit.wav -W ;;; for file output any platform</span>
<span class="csdtag"></CsOptions></span>
<span class="csdtag"><CsInstruments></span>
<span class="ohdr">sr</span> <span class="op">=</span> 44100
<span class="ohdr">ksmps</span> <span class="op">=</span> 32
<span class="ohdr">nchnls</span> <span class="op">=</span> 2
gihandle <span class="opc">dssiinit</span> "g2reverb.so", 0, 1
gaout <span class="opc">init</span> 0
<span class="oblock">instr</span> 1 <span class="comment">; activate DSSI</span>
<span class="opc">dssiactivate</span> gihandle, 1
<span class="oblock">endin</span>
<span class="oblock">instr</span> 2
ain1 <span class="opc">diskin2</span> "beats.wav", 1
gaout <span class="op">=</span> gaout<span class="op">+</span>(ain1<span class="op">*</span>.3)
<span class="oblock">endin</span>
<span class="oblock">instr</span> 3
<span class="opc">dssictls</span> gihandle, 4, 100, 1 <span class="comment">; room 10 to 150 </span>
<span class="opc">dssictls</span> gihandle, 5, 10, 1 <span class="comment">; reverb time 1 to 20</span>
<span class="opc">dssictls</span> gihandle, 6, .5, 1 <span class="comment">; input bandwith 0 to 1</span>
<span class="opc">dssictls</span> gihandle, 7, .25, 1 <span class="comment">; damping 0 to 1</span>
<span class="opc">dssictls</span> gihandle, 8, 0, 1 <span class="comment">; dry -80 to 0</span>
<span class="opc">dssictls</span> gihandle, 9, <span class="op">-</span>10, 1 <span class="comment">; reflections -80 to 0</span>
<span class="opc">dssictls</span> gihandle, 10, <span class="op">-</span>15, 1 <span class="comment">; rev. tail -80 to 0</span>
<span class="oblock">endin</span>
<span class="oblock">instr</span> 4
aout1, aout2 <span class="opc">dssiaudio</span> gihandle, gaout, gaout <span class="comment">;get beats.wav and</span>
<span class="opc">outs</span> aout1,aout2 <span class="comment">; stereo DSSI plugin</span>
gaout <span class="op">=</span> 0
<span class="oblock">endin</span>
<span class="csdtag"></CsInstruments></span>
<span class="csdtag"><CsScore></span>
<span class="stamnt">i</span> 1 0 2
<span class="stamnt">i</span> 2 1 10
<span class="stamnt">i</span> 3 1 10
<span class="stamnt">i</span> 4 0 10
<span class="stamnt">e</span>
<span class="csdtag"></CsScore></span>
<span class="csdtag"></CsoundSynthesizer></span>
</pre>
</div>
</div>
<p><br class="example-break" />
</p>
</div>
<div class="refsect1" title="Credits">
<a id="idp18789032"></a>
<h2>Credits</h2>
<p>2005</p>
<p>By: Andrés Cabrera</p>
<p>Uses code from Richard Furse's LADSPA sdk.</p>
</div>
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