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<title>Audaspace: CallbackIIRFilterReader Class Reference</title>
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<div id="projectname">Audaspace
 <span id="projectnumber">1.3.0</span>
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<div id="projectbrief">A high level audio library.</div>
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<a href="#pub-methods">Public Member Functions</a> |
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<div class="title">CallbackIIRFilterReader Class Reference</div> </div>
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<p>This class provides an interface for infinite impulse response filters via a callback filter function.
<a href="classCallbackIIRFilterReader.html#details">More...</a></p>
<p><code>#include <<a class="el" href="CallbackIIRFilterReader_8h_source.html">CallbackIIRFilterReader.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for CallbackIIRFilterReader:</div>
<div class="dyncontent">
<div class="center"><img src="classCallbackIIRFilterReader__inherit__graph.png" border="0" usemap="#CallbackIIRFilterReader_inherit__map" alt="Inheritance graph"/></div>
<map name="CallbackIIRFilterReader_inherit__map" id="CallbackIIRFilterReader_inherit__map">
<area shape="rect" title="This class provides an interface for infinite impulse response filters via a callback filter function..." alt="" coords="5,229,172,256"/>
<area shape="rect" href="classBaseIIRFilterReader.html" title="This class is a base class for infinite impulse response filters." alt="" coords="17,155,160,181"/>
<area shape="rect" href="classEffectReader.html" title="This reader is a base class for all effect readers that take one other reader as input." alt="" coords="39,80,139,107"/>
<area shape="rect" href="classIReader.html" title="This class represents a sound source as stream or as buffer which can be read for example by another ..." alt="" coords="54,5,123,32"/>
</map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a999426734db02be6f7f1fba641bba130"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classCallbackIIRFilterReader.html#a999426734db02be6f7f1fba641bba130">CallbackIIRFilterReader</a> (std::shared_ptr< <a class="el" href="classIReader.html">IReader</a> > reader, int in, int out, <a class="el" href="CallbackIIRFilterReader_8h.html#a1547112fb751881de316b45c1ed12414">doFilterIIR</a> doFilter, <a class="el" href="CallbackIIRFilterReader_8h.html#a8b3cab33632ea9e153eb65983ae2843f">endFilterIIR</a> endFilter=0, void *data=nullptr)</td></tr>
<tr class="memdesc:a999426734db02be6f7f1fba641bba130"><td class="mdescLeft"> </td><td class="mdescRight">Creates a new callback IIR filter reader. <a href="#a999426734db02be6f7f1fba641bba130">More...</a><br /></td></tr>
<tr class="separator:a999426734db02be6f7f1fba641bba130"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a08e1de8c8e2c00b61ad09758f78ea73d"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="Audaspace_8h.html#aa0798f7ea0975b143a1d9deac8c05d43">sample_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classCallbackIIRFilterReader.html#a08e1de8c8e2c00b61ad09758f78ea73d">filter</a> ()</td></tr>
<tr class="memdesc:a08e1de8c8e2c00b61ad09758f78ea73d"><td class="mdescLeft"> </td><td class="mdescRight">Runs the filtering function. <a href="#a08e1de8c8e2c00b61ad09758f78ea73d">More...</a><br /></td></tr>
<tr class="separator:a08e1de8c8e2c00b61ad09758f78ea73d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_classBaseIIRFilterReader"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classBaseIIRFilterReader')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classBaseIIRFilterReader.html">BaseIIRFilterReader</a></td></tr>
<tr class="memitem:a32835ea16af65ef83f12a86b3d86d202 inherit pub_methods_classBaseIIRFilterReader"><td class="memItemLeft" align="right" valign="top"><a class="el" href="Audaspace_8h.html#aa0798f7ea0975b143a1d9deac8c05d43">sample_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classBaseIIRFilterReader.html#a32835ea16af65ef83f12a86b3d86d202">x</a> (int pos)</td></tr>
<tr class="memdesc:a32835ea16af65ef83f12a86b3d86d202 inherit pub_methods_classBaseIIRFilterReader"><td class="mdescLeft"> </td><td class="mdescRight">Retrieves the last input samples. <a href="classBaseIIRFilterReader.html#a32835ea16af65ef83f12a86b3d86d202">More...</a><br /></td></tr>
<tr class="separator:a32835ea16af65ef83f12a86b3d86d202 inherit pub_methods_classBaseIIRFilterReader"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8615ea2f0eca503396dc2eba33a939a9 inherit pub_methods_classBaseIIRFilterReader"><td class="memItemLeft" align="right" valign="top"><a class="el" href="Audaspace_8h.html#aa0798f7ea0975b143a1d9deac8c05d43">sample_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classBaseIIRFilterReader.html#a8615ea2f0eca503396dc2eba33a939a9">y</a> (int pos)</td></tr>
<tr class="memdesc:a8615ea2f0eca503396dc2eba33a939a9 inherit pub_methods_classBaseIIRFilterReader"><td class="mdescLeft"> </td><td class="mdescRight">Retrieves the last output samples. <a href="classBaseIIRFilterReader.html#a8615ea2f0eca503396dc2eba33a939a9">More...</a><br /></td></tr>
<tr class="separator:a8615ea2f0eca503396dc2eba33a939a9 inherit pub_methods_classBaseIIRFilterReader"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2d98cbf232c8bb7fda7b2a90b40e194a inherit pub_methods_classBaseIIRFilterReader"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classBaseIIRFilterReader.html#a2d98cbf232c8bb7fda7b2a90b40e194a">read</a> (int &length, bool &eos, <a class="el" href="Audaspace_8h.html#aa0798f7ea0975b143a1d9deac8c05d43">sample_t</a> *buffer)</td></tr>
<tr class="memdesc:a2d98cbf232c8bb7fda7b2a90b40e194a inherit pub_methods_classBaseIIRFilterReader"><td class="mdescLeft"> </td><td class="mdescRight">Request to read the next length samples out of the source. <a href="classBaseIIRFilterReader.html#a2d98cbf232c8bb7fda7b2a90b40e194a">More...</a><br /></td></tr>
<tr class="separator:a2d98cbf232c8bb7fda7b2a90b40e194a inherit pub_methods_classBaseIIRFilterReader"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:abc6e8235a8ac90e9abd6a42102a65123 inherit pub_methods_classBaseIIRFilterReader"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classBaseIIRFilterReader.html#abc6e8235a8ac90e9abd6a42102a65123">sampleRateChanged</a> (<a class="el" href="Specification_8h.html#a11249ca544d179e7fa61b2200a092407">SampleRate</a> rate)</td></tr>
<tr class="memdesc:abc6e8235a8ac90e9abd6a42102a65123 inherit pub_methods_classBaseIIRFilterReader"><td class="mdescLeft"> </td><td class="mdescRight">Notifies the filter about a sample rate change. <a href="classBaseIIRFilterReader.html#abc6e8235a8ac90e9abd6a42102a65123">More...</a><br /></td></tr>
<tr class="separator:abc6e8235a8ac90e9abd6a42102a65123 inherit pub_methods_classBaseIIRFilterReader"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_classEffectReader"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classEffectReader')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classEffectReader.html">EffectReader</a></td></tr>
<tr class="memitem:a2d55c6b9a73180b67a4af6897ab9ad83 inherit pub_methods_classEffectReader"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classEffectReader.html#a2d55c6b9a73180b67a4af6897ab9ad83">EffectReader</a> (std::shared_ptr< <a class="el" href="classIReader.html">IReader</a> > reader)</td></tr>
<tr class="memdesc:a2d55c6b9a73180b67a4af6897ab9ad83 inherit pub_methods_classEffectReader"><td class="mdescLeft"> </td><td class="mdescRight">Creates a new effect reader. <a href="classEffectReader.html#a2d55c6b9a73180b67a4af6897ab9ad83">More...</a><br /></td></tr>
<tr class="separator:a2d55c6b9a73180b67a4af6897ab9ad83 inherit pub_methods_classEffectReader"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6e0f0af0c5dbbc0c63dd413c80293af8 inherit pub_methods_classEffectReader"><td class="memItemLeft" align="right" valign="top"><a id="a6e0f0af0c5dbbc0c63dd413c80293af8"></a>
virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classEffectReader.html#a6e0f0af0c5dbbc0c63dd413c80293af8">~EffectReader</a> ()</td></tr>
<tr class="memdesc:a6e0f0af0c5dbbc0c63dd413c80293af8 inherit pub_methods_classEffectReader"><td class="mdescLeft"> </td><td class="mdescRight">Destroys the reader. <br /></td></tr>
<tr class="separator:a6e0f0af0c5dbbc0c63dd413c80293af8 inherit pub_methods_classEffectReader"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a633b8c01babc0b8cdfb9bb0b91b2b516 inherit pub_methods_classEffectReader"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classEffectReader.html#a633b8c01babc0b8cdfb9bb0b91b2b516">isSeekable</a> () const</td></tr>
<tr class="memdesc:a633b8c01babc0b8cdfb9bb0b91b2b516 inherit pub_methods_classEffectReader"><td class="mdescLeft"> </td><td class="mdescRight">Tells whether the source provides seeking functionality or not. <a href="classEffectReader.html#a633b8c01babc0b8cdfb9bb0b91b2b516">More...</a><br /></td></tr>
<tr class="separator:a633b8c01babc0b8cdfb9bb0b91b2b516 inherit pub_methods_classEffectReader"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a33297aeb697345439f4256fb9ac0e2ba inherit pub_methods_classEffectReader"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classEffectReader.html#a33297aeb697345439f4256fb9ac0e2ba">seek</a> (int position)</td></tr>
<tr class="memdesc:a33297aeb697345439f4256fb9ac0e2ba inherit pub_methods_classEffectReader"><td class="mdescLeft"> </td><td class="mdescRight">Seeks to a specific position in the source. <a href="classEffectReader.html#a33297aeb697345439f4256fb9ac0e2ba">More...</a><br /></td></tr>
<tr class="separator:a33297aeb697345439f4256fb9ac0e2ba inherit pub_methods_classEffectReader"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae628230020b2e85f02a62f8c54fb0983 inherit pub_methods_classEffectReader"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classEffectReader.html#ae628230020b2e85f02a62f8c54fb0983">getLength</a> () const</td></tr>
<tr class="memdesc:ae628230020b2e85f02a62f8c54fb0983 inherit pub_methods_classEffectReader"><td class="mdescLeft"> </td><td class="mdescRight">Returns an approximated length of the source in samples. <a href="classEffectReader.html#ae628230020b2e85f02a62f8c54fb0983">More...</a><br /></td></tr>
<tr class="separator:ae628230020b2e85f02a62f8c54fb0983 inherit pub_methods_classEffectReader"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af1d48c9edfadd0ea892245975e2c9994 inherit pub_methods_classEffectReader"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classEffectReader.html#af1d48c9edfadd0ea892245975e2c9994">getPosition</a> () const</td></tr>
<tr class="memdesc:af1d48c9edfadd0ea892245975e2c9994 inherit pub_methods_classEffectReader"><td class="mdescLeft"> </td><td class="mdescRight">Returns the position of the source as a sample count value. <a href="classEffectReader.html#af1d48c9edfadd0ea892245975e2c9994">More...</a><br /></td></tr>
<tr class="separator:af1d48c9edfadd0ea892245975e2c9994 inherit pub_methods_classEffectReader"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3d82581f492bb2cadf80bd466cb2aec5 inherit pub_methods_classEffectReader"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="structSpecs.html">Specs</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classEffectReader.html#a3d82581f492bb2cadf80bd466cb2aec5">getSpecs</a> () const</td></tr>
<tr class="memdesc:a3d82581f492bb2cadf80bd466cb2aec5 inherit pub_methods_classEffectReader"><td class="mdescLeft"> </td><td class="mdescRight">Returns the specification of the reader. <a href="classEffectReader.html#a3d82581f492bb2cadf80bd466cb2aec5">More...</a><br /></td></tr>
<tr class="separator:a3d82581f492bb2cadf80bd466cb2aec5 inherit pub_methods_classEffectReader"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_classIReader"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classIReader')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classIReader.html">IReader</a></td></tr>
<tr class="memitem:a3489c23855da532dd3a10cfae78bc899 inherit pub_methods_classIReader"><td class="memItemLeft" align="right" valign="top"><a id="a3489c23855da532dd3a10cfae78bc899"></a>
virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classIReader.html#a3489c23855da532dd3a10cfae78bc899">~IReader</a> ()</td></tr>
<tr class="memdesc:a3489c23855da532dd3a10cfae78bc899 inherit pub_methods_classIReader"><td class="mdescLeft"> </td><td class="mdescRight">Destroys the reader. <br /></td></tr>
<tr class="separator:a3489c23855da532dd3a10cfae78bc899 inherit pub_methods_classIReader"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="inherited"></a>
Additional Inherited Members</h2></td></tr>
<tr class="inherit_header pro_methods_classBaseIIRFilterReader"><td colspan="2" onclick="javascript:toggleInherit('pro_methods_classBaseIIRFilterReader')"><img src="closed.png" alt="-"/> Protected Member Functions inherited from <a class="el" href="classBaseIIRFilterReader.html">BaseIIRFilterReader</a></td></tr>
<tr class="memitem:af03a348ceb928522ff59b3700986b4d4 inherit pro_methods_classBaseIIRFilterReader"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classBaseIIRFilterReader.html#af03a348ceb928522ff59b3700986b4d4">BaseIIRFilterReader</a> (std::shared_ptr< <a class="el" href="classIReader.html">IReader</a> > reader, int in, int out)</td></tr>
<tr class="memdesc:af03a348ceb928522ff59b3700986b4d4 inherit pro_methods_classBaseIIRFilterReader"><td class="mdescLeft"> </td><td class="mdescRight">Creates a new base IIR filter reader. <a href="classBaseIIRFilterReader.html#af03a348ceb928522ff59b3700986b4d4">More...</a><br /></td></tr>
<tr class="separator:af03a348ceb928522ff59b3700986b4d4 inherit pro_methods_classBaseIIRFilterReader"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0ae88003ff856768864857a3bc6ce3dd inherit pro_methods_classBaseIIRFilterReader"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classBaseIIRFilterReader.html#a0ae88003ff856768864857a3bc6ce3dd">setLengths</a> (int in, int out)</td></tr>
<tr class="memdesc:a0ae88003ff856768864857a3bc6ce3dd inherit pro_methods_classBaseIIRFilterReader"><td class="mdescLeft"> </td><td class="mdescRight">Sets the length for the required input and output samples of the IIR filter. <a href="classBaseIIRFilterReader.html#a0ae88003ff856768864857a3bc6ce3dd">More...</a><br /></td></tr>
<tr class="separator:a0ae88003ff856768864857a3bc6ce3dd inherit pro_methods_classBaseIIRFilterReader"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pro_attribs_classEffectReader"><td colspan="2" onclick="javascript:toggleInherit('pro_attribs_classEffectReader')"><img src="closed.png" alt="-"/> Protected Attributes inherited from <a class="el" href="classEffectReader.html">EffectReader</a></td></tr>
<tr class="memitem:a798b7d1356bd214d99dd05f521b248aa inherit pro_attribs_classEffectReader"><td class="memItemLeft" align="right" valign="top"><a id="a798b7d1356bd214d99dd05f521b248aa"></a>
std::shared_ptr< <a class="el" href="classIReader.html">IReader</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classEffectReader.html#a798b7d1356bd214d99dd05f521b248aa">m_reader</a></td></tr>
<tr class="memdesc:a798b7d1356bd214d99dd05f521b248aa inherit pro_attribs_classEffectReader"><td class="mdescLeft"> </td><td class="mdescRight">The reader to read from. <br /></td></tr>
<tr class="separator:a798b7d1356bd214d99dd05f521b248aa inherit pro_attribs_classEffectReader"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>This class provides an interface for infinite impulse response filters via a callback filter function. </p>
</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
<a id="a999426734db02be6f7f1fba641bba130"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a999426734db02be6f7f1fba641bba130">◆ </a></span>CallbackIIRFilterReader()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">CallbackIIRFilterReader::CallbackIIRFilterReader </td>
<td>(</td>
<td class="paramtype">std::shared_ptr< <a class="el" href="classIReader.html">IReader</a> > </td>
<td class="paramname"><em>reader</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>in</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>out</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="CallbackIIRFilterReader_8h.html#a1547112fb751881de316b45c1ed12414">doFilterIIR</a> </td>
<td class="paramname"><em>doFilter</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="CallbackIIRFilterReader_8h.html#a8b3cab33632ea9e153eb65983ae2843f">endFilterIIR</a> </td>
<td class="paramname"><em>endFilter</em> = <code>0</code>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void * </td>
<td class="paramname"><em>data</em> = <code>nullptr</code> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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</div><div class="memdoc">
<p>Creates a new callback IIR filter reader. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">reader</td><td>The reader to read from. </td></tr>
<tr><td class="paramname">in</td><td>The count of past input samples needed. </td></tr>
<tr><td class="paramname">out</td><td>The count of past output samples needed. </td></tr>
<tr><td class="paramname">doFilter</td><td>The filter callback. </td></tr>
<tr><td class="paramname">endFilter</td><td>The finishing callback. </td></tr>
<tr><td class="paramname">data</td><td>Data pointer for the callbacks. </td></tr>
</table>
</dd>
</dl>
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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a08e1de8c8e2c00b61ad09758f78ea73d">◆ </a></span>filter()</h2>
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<td class="memname">virtual <a class="el" href="Audaspace_8h.html#aa0798f7ea0975b143a1d9deac8c05d43">sample_t</a> CallbackIIRFilterReader::filter </td>
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<p>Runs the filtering function. </p>
<dl class="section return"><dt>Returns</dt><dd>The current output sample value. </dd></dl>
<p>Implements <a class="el" href="classBaseIIRFilterReader.html#a752fa215ff15b956e09402f0dfe7936e">BaseIIRFilterReader</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li>fx/<a class="el" href="CallbackIIRFilterReader_8h_source.html">CallbackIIRFilterReader.h</a></li>
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