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<h1>Async::AudioSource Class Reference</h1><!-- doxytag: class="Async::AudioSource" -->
<p>The base class for an audio source.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="AsyncAudioSource_8h_source.html">AsyncAudioSource.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for Async::AudioSource:</div>
<div class="dynsection">
<div class="center">
<img src="classAsync_1_1AudioSource.png" usemap="#Async::AudioSource_map" alt=""/>
<map id="Async::AudioSource_map" name="Async::AudioSource_map">
<area href="classAsync_1_1AudioDebugger.html" alt="Async::AudioDebugger" shape="rect" coords="167,56,324,80"/>
<area href="classAsync_1_1AudioDecoder.html" alt="Async::AudioDecoder" shape="rect" coords="167,112,324,136"/>
<area href="classAsync_1_1AudioDelayLine.html" alt="Async::AudioDelayLine" shape="rect" coords="167,168,324,192"/>
<area href="classAsync_1_1AudioFifo.html" alt="Async::AudioFifo" shape="rect" coords="167,224,324,248"/>
<area href="classAsync_1_1AudioIO.html" alt="Async::AudioIO" shape="rect" coords="167,280,324,304"/>
<area href="classAsync_1_1AudioMixer.html" alt="Async::AudioMixer" shape="rect" coords="167,336,324,360"/>
<area href="classAsync_1_1AudioPacer.html" alt="Async::AudioPacer" shape="rect" coords="167,392,324,416"/>
<area href="classAsync_1_1AudioPassthrough.html" alt="Async::AudioPassthrough" shape="rect" coords="167,448,324,472"/>
<area href="classAsync_1_1AudioProcessor.html" alt="Async::AudioProcessor" shape="rect" coords="167,504,324,528"/>
<area href="classAsync_1_1AudioSelector.html" alt="Async::AudioSelector" shape="rect" coords="167,560,324,584"/>
<area href="classAsync_1_1AudioValve.html" alt="Async::AudioValve" shape="rect" coords="167,616,324,640"/>
</map>
</div>
</div>
<p><a href="classAsync_1_1AudioSource-members.html">List of all members.</a></p>
<h2>Public Member Functions</h2>
<ul>
<li><a class="el" href="classAsync_1_1AudioSource.html#a9058cdeb8aa465ab5dcf49112b40df8b">AudioSource</a> (void)
<dl class="el"><dd class="mdescRight">Default constuctor. <a href="#a9058cdeb8aa465ab5dcf49112b40df8b"></a><br/></dl><li>virtual <a class="el" href="classAsync_1_1AudioSource.html#a65c6adda8ff99609f3020b34a998afdc">~AudioSource</a> (void)
<dl class="el"><dd class="mdescRight">Destructor. <a href="#a65c6adda8ff99609f3020b34a998afdc"></a><br/></dl><li>bool <a class="el" href="classAsync_1_1AudioSource.html#a2254f2e73c5033ee28a569bd205ed345">registerSink</a> (<a class="el" href="classAsync_1_1AudioSink.html">AudioSink</a> *sink, bool managed=false)
<dl class="el"><dd class="mdescRight">Register an audio sink to provide samples to. <a href="#a2254f2e73c5033ee28a569bd205ed345"></a><br/></dl><li>void <a class="el" href="classAsync_1_1AudioSource.html#a898aada74ec99cad0cb2edb1b7f534e4">unregisterSink</a> (void)
<dl class="el"><dd class="mdescRight">Unregister the previously registered audio sink. <a href="#a898aada74ec99cad0cb2edb1b7f534e4"></a><br/></dl><li>bool <a class="el" href="classAsync_1_1AudioSource.html#af105f7f34588e197f331d52fd274eb6e">isRegistered</a> (void) const
<dl class="el"><dd class="mdescRight">Check if an audio sink has been registered. <a href="#af105f7f34588e197f331d52fd274eb6e"></a><br/></dl><li><a class="el" href="classAsync_1_1AudioSink.html">AudioSink</a> * <a class="el" href="classAsync_1_1AudioSource.html#a3272e7519e762bcb26b33413db082eac">sink</a> (void) const
<dl class="el"><dd class="mdescRight">Get the registered audio sink. <a href="#a3272e7519e762bcb26b33413db082eac"></a><br/></dl><li>bool <a class="el" href="classAsync_1_1AudioSource.html#a451d8b376851c54a4e0780dcea9a9739">sinkManaged</a> (void) const
<dl class="el"><dd class="mdescRight">Check if the sink is managed or not. <a href="#a451d8b376851c54a4e0780dcea9a9739"></a><br/></dl><li>void <a class="el" href="classAsync_1_1AudioSource.html#a7b0e8399dad546407614f43dc6fe71c6">handleAllSamplesFlushed</a> (void)
<dl class="el"><dd class="mdescRight">The registered sink has flushed all samples. <a href="#a7b0e8399dad546407614f43dc6fe71c6"></a><br/></dl><li>virtual void <a class="el" href="classAsync_1_1AudioSource.html#ac187f89a6094ec066dab5b4fd3108754">resumeOutput</a> (void)
<dl class="el"><dd class="mdescRight">Resume audio output to the sink. <a href="#ac187f89a6094ec066dab5b4fd3108754"></a><br/></dl></ul>
<h2>Protected Member Functions</h2>
<ul>
<li>virtual void <a class="el" href="classAsync_1_1AudioSource.html#a563adf6411eddbd056abf206a12354b6">allSamplesFlushed</a> (void)
<dl class="el"><dd class="mdescRight">The registered sink has flushed all samples. <a href="#a563adf6411eddbd056abf206a12354b6"></a><br/></dl><li>int <a class="el" href="classAsync_1_1AudioSource.html#ad23a249abf0f8fd39d364301364740a6">sinkWriteSamples</a> (const float *samples, int len)
<li>void <a class="el" href="classAsync_1_1AudioSource.html#a5837ec95fef7d668d1c5241cee54646c">sinkFlushSamples</a> (void)
<li>bool <a class="el" href="classAsync_1_1AudioSource.html#a1afec59d8ed442fd7f292a817a6098dd">setHandler</a> (<a class="el" href="classAsync_1_1AudioSource.html">AudioSource</a> *handler)
<dl class="el"><dd class="mdescRight">Setup another source to handle the outgoing audio. <a href="#a1afec59d8ed442fd7f292a817a6098dd"></a><br/></dl><li><a class="el" href="classAsync_1_1AudioSource.html">AudioSource</a> * <a class="el" href="classAsync_1_1AudioSource.html#ad674c3ab16ed170e8d9da029c0c019cd">handler</a> (void) const
<li>void <a class="el" href="classAsync_1_1AudioSource.html#a70bb05d58da6fbb471f893381cdb0107">clearHandler</a> (void)
<dl class="el"><dd class="mdescRight">Clear a handler that was previously setup with setHandler. <a href="#a70bb05d58da6fbb471f893381cdb0107"></a><br/></dl></ul>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>The base class for an audio source. </p>
<dl class="author"><dt><b>Author:</b></dt><dd>Tobias Blomberg </dd></dl>
<dl class="date"><dt><b>Date:</b></dt><dd>2005-04-17</dd></dl>
<p>This is the base class for an audio source. An audio source is a class that can produce audio. </p>
<dl><dt><b>Examples: </b></dt><dd>
<p><a class="el" href="AsyncAudioIO__demo_8cpp-example.html#_a1">AsyncAudioIO_demo.cpp</a>.</p>
</dd>
</dl>
<p>Definition at line <a class="el" href="AsyncAudioSource_8h_source.html#l00114">114</a> of file <a class="el" href="AsyncAudioSource_8h_source.html">AsyncAudioSource.h</a>.</p>
<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a9058cdeb8aa465ab5dcf49112b40df8b"></a><!-- doxytag: member="Async::AudioSource::AudioSource" ref="a9058cdeb8aa465ab5dcf49112b40df8b" args="(void)" -->
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<td class="memname">Async::AudioSource::AudioSource </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td>
<td> ) </td>
<td><code> [inline]</code></td>
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<p>Default constuctor. </p>
<p>Definition at line <a class="el" href="AsyncAudioSource_8h_source.html#l00120">120</a> of file <a class="el" href="AsyncAudioSource_8h_source.html">AsyncAudioSource.h</a>.</p>
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<a class="anchor" id="a65c6adda8ff99609f3020b34a998afdc"></a><!-- doxytag: member="Async::AudioSource::~AudioSource" ref="a65c6adda8ff99609f3020b34a998afdc" args="(void)" -->
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<td class="memname">virtual Async::AudioSource::~AudioSource </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>Destructor. </p>
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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a563adf6411eddbd056abf206a12354b6"></a><!-- doxytag: member="Async::AudioSource::allSamplesFlushed" ref="a563adf6411eddbd056abf206a12354b6" args="(void)" -->
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<td class="memname">virtual void Async::AudioSource::allSamplesFlushed </td>
<td>(</td>
<td class="paramtype">void </td>
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<td><code> [inline, protected, virtual]</code></td>
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<p>The registered sink has flushed all samples. </p>
<p>This function should be implemented by the inheriting class. It will be called when all samples have been flushed in the registered sink. If it is not reimplemented, a handler must be set that handle the function call. This function is normally only called from a connected sink object. </p>
<p>Reimplemented in <a class="el" href="classAsync_1_1AudioDebugger.html#aa8efeb9d75957a35673454cac5e25d68">Async::AudioDebugger</a>, <a class="el" href="classAsync_1_1AudioDecoder.html#a9dc81d6d23e356e401daba589f214472">Async::AudioDecoder</a>, <a class="el" href="classAsync_1_1AudioDelayLine.html#a960b0b88890fb9b920deafc4960a9838">Async::AudioDelayLine</a>, <a class="el" href="classAsync_1_1AudioFifo.html#ac7128e91c69306da64979268b61adbba">Async::AudioFifo</a>, <a class="el" href="classAsync_1_1AudioIO.html#ae461bbea57b5108e0eb91961d8312c8e">Async::AudioIO</a>, <a class="el" href="classAsync_1_1AudioMixer.html#a73881e68d3344fdb4beeef5e1cb565b5">Async::AudioMixer</a>, <a class="el" href="classAsync_1_1AudioPacer.html#a7abb7e35757c80527a145a483a025c4c">Async::AudioPacer</a>, <a class="el" href="classAsync_1_1AudioPassthrough.html#a73ee065737064e255476bbd9a8b61fc9">Async::AudioPassthrough</a>, <a class="el" href="classAsync_1_1AudioProcessor.html#a5e70bbb209ed56260108cb5c7174dd91">Async::AudioProcessor</a>, <a class="el" href="classAsync_1_1AudioStreamStateDetector.html#ac3c78e78d19c8bfb228b94b1b3e15f75">Async::AudioStreamStateDetector</a>, and <a class="el" href="classAsync_1_1AudioValve.html#a3066a711624eec1c9838fb0e2b5bb365">Async::AudioValve</a>.</p>
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="AsyncAudioIO__demo_8cpp-example.html#a10">AsyncAudioIO_demo.cpp</a>.</dd>
</dl>
<p>Definition at line <a class="el" href="AsyncAudioSource_8h_source.html#l00205">205</a> of file <a class="el" href="AsyncAudioSource_8h_source.html">AsyncAudioSource.h</a>.</p>
<p>References <a class="el" href="AsyncAudioSource_8h_source.html#l00174">handleAllSamplesFlushed()</a>.</p>
<p>Referenced by <a class="el" href="AsyncAudioSource_8h_source.html#l00174">handleAllSamplesFlushed()</a>.</p>
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<a class="anchor" id="a70bb05d58da6fbb471f893381cdb0107"></a><!-- doxytag: member="Async::AudioSource::clearHandler" ref="a70bb05d58da6fbb471f893381cdb0107" args="(void)" -->
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<td class="memname">void Async::AudioSource::clearHandler </td>
<td>(</td>
<td class="paramtype">void </td>
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<td><code> [protected]</code></td>
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<p>Clear a handler that was previously setup with setHandler. </p>
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<a class="anchor" id="a7b0e8399dad546407614f43dc6fe71c6"></a><!-- doxytag: member="Async::AudioSource::handleAllSamplesFlushed" ref="a7b0e8399dad546407614f43dc6fe71c6" args="(void)" -->
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<td class="memname">void Async::AudioSource::handleAllSamplesFlushed </td>
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<td><code> [inline]</code></td>
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<p>The registered sink has flushed all samples. </p>
<p>This function will be called when all samples have been flushed in the registered sink. This function is normally only called from a connected sink object. </p>
<p>Definition at line <a class="el" href="AsyncAudioSource_8h_source.html#l00174">174</a> of file <a class="el" href="AsyncAudioSource_8h_source.html">AsyncAudioSource.h</a>.</p>
<p>References <a class="el" href="AsyncAudioSource_8h_source.html#l00205">allSamplesFlushed()</a>.</p>
<p>Referenced by <a class="el" href="AsyncAudioSource_8h_source.html#l00205">allSamplesFlushed()</a>.</p>
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<td class="memname"><a class="el" href="classAsync_1_1AudioSource.html">AudioSource</a>* Async::AudioSource::handler </td>
<td>(</td>
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<td> const<code> [inline, protected]</code></td>
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<p>Definition at line <a class="el" href="AsyncAudioSource_8h_source.html#l00252">252</a> of file <a class="el" href="AsyncAudioSource_8h_source.html">AsyncAudioSource.h</a>.</p>
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<a class="anchor" id="af105f7f34588e197f331d52fd274eb6e"></a><!-- doxytag: member="Async::AudioSource::isRegistered" ref="af105f7f34588e197f331d52fd274eb6e" args="(void) const " -->
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<td>(</td>
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<td> const<code> [inline]</code></td>
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<p>Check if an audio sink has been registered. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>Returns <em>true</em> if there is an audio sink registerd </dd></dl>
<p>Definition at line <a class="el" href="AsyncAudioSource_8h_source.html#l00148">148</a> of file <a class="el" href="AsyncAudioSource_8h_source.html">AsyncAudioSource.h</a>.</p>
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<td>(</td>
<td class="paramtype"><a class="el" href="classAsync_1_1AudioSink.html">AudioSink</a> * </td>
<td class="paramname"> <em>sink</em>, </td>
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<p>Register an audio sink to provide samples to. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>sink</em> </td><td>The audio sink to register </td></tr>
<tr><td valign="top"></td><td valign="top"><em>managed</em> </td><td>If <em>true</em>, the registered sink will be destroyed when this object is destroyed. </td></tr>
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<dl class="return"><dt><b>Returns:</b></dt><dd>Returns <em>true</em> on success or else <em>false</em> </dd></dl>
<p>Referenced by <a class="el" href="AsyncAudioDebugger_8h_source.html#l00123">Async::AudioDebugger::AudioDebugger()</a>.</p>
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<p>Resume audio output to the sink. </p>
<p>This function must be reimplemented by the inheriting class. It will be called when the registered audio sink is ready to accept more samples. This function is normally only called from a connected sink object. </p>
<p>Reimplemented in <a class="el" href="classAsync_1_1AudioDebugger.html#a4a62029f82467d6038b7f54022b189eb">Async::AudioDebugger</a>, <a class="el" href="classAsync_1_1AudioDecoder.html#a3ed27974c629701e6285ab2c7bd438bb">Async::AudioDecoder</a>, <a class="el" href="classAsync_1_1AudioDelayLine.html#a795984fbe4c7720502aa3ab35845a606">Async::AudioDelayLine</a>, <a class="el" href="classAsync_1_1AudioFifo.html#a9d0e1c7aa52ace7ce4499087230c4292">Async::AudioFifo</a>, <a class="el" href="classAsync_1_1AudioIO.html#a7c48d73409ebd957a0c04a85b37e73bd">Async::AudioIO</a>, <a class="el" href="classAsync_1_1AudioMixer.html#a0cd34398d7e92746b5c0bd02ac4779a8">Async::AudioMixer</a>, <a class="el" href="classAsync_1_1AudioPacer.html#a1ef0821e8a2e5b42772d7873ecb027af">Async::AudioPacer</a>, <a class="el" href="classAsync_1_1AudioPassthrough.html#a4591e75610b4b6f84699cc3f790695a4">Async::AudioPassthrough</a>, <a class="el" href="classAsync_1_1AudioProcessor.html#a11182749ba069c967ddfe4d61fa5aa6c">Async::AudioProcessor</a>, and <a class="el" href="classAsync_1_1AudioValve.html#a3557e4f4c65077ebc7471e6c72027166">Async::AudioValve</a>.</p>
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="AsyncAudioIO__demo_8cpp-example.html#a8">AsyncAudioIO_demo.cpp</a>.</dd>
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<p>Definition at line <a class="el" href="AsyncAudioSource_8h_source.html#l00188">188</a> of file <a class="el" href="AsyncAudioSource_8h_source.html">AsyncAudioSource.h</a>.</p>
<p>References <a class="el" href="AsyncAudioSource_8h_source.html#l00188">resumeOutput()</a>.</p>
<p>Referenced by <a class="el" href="AsyncAudioSource_8h_source.html#l00188">resumeOutput()</a>.</p>
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<td class="memname">bool Async::AudioSource::setHandler </td>
<td>(</td>
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<p>Setup another source to handle the outgoing audio. </p>
<dl><dt><b>Parameters:</b></dt><dd>
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<dl class="return"><dt><b>Returns:</b></dt><dd>Returns <em>true</em> on success or else <em>false</em> </dd></dl>
<p>This function will setup another source to handle outgoing audio. This can be used when an internal object should handle the audio for this object. </p>
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<a class="anchor" id="a3272e7519e762bcb26b33413db082eac"></a><!-- doxytag: member="Async::AudioSource::sink" ref="a3272e7519e762bcb26b33413db082eac" args="(void) const " -->
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<td class="memname"><a class="el" href="classAsync_1_1AudioSink.html">AudioSink</a>* Async::AudioSource::sink </td>
<td>(</td>
<td class="paramtype">void </td>
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<td> ) </td>
<td> const<code> [inline]</code></td>
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<p>Get the registered audio sink. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>Returns the registered audio sink if any registered or else returns 0. </dd></dl>
<p>Definition at line <a class="el" href="AsyncAudioSource_8h_source.html#l00155">155</a> of file <a class="el" href="AsyncAudioSource_8h_source.html">AsyncAudioSource.h</a>.</p>
<p>Referenced by <a class="el" href="AsyncAudioDebugger_8h_source.html#l00123">Async::AudioDebugger::AudioDebugger()</a>.</p>
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<a class="anchor" id="a5837ec95fef7d668d1c5241cee54646c"></a><!-- doxytag: member="Async::AudioSource::sinkFlushSamples" ref="a5837ec95fef7d668d1c5241cee54646c" args="(void)" -->
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<td class="memname">void Async::AudioSource::sinkFlushSamples </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td>
<td> ) </td>
<td><code> [protected]</code></td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="AsyncAudioIO__demo_8cpp-example.html#a7">AsyncAudioIO_demo.cpp</a>.</dd>
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<p>Referenced by <a class="el" href="AsyncAudioDecoder_8h_source.html#l00156">Async::AudioDecoder::flushEncodedSamples()</a>, <a class="el" href="AsyncAudioValve_8h_source.html#l00263">Async::AudioValve::flushSamples()</a>, <a class="el" href="AsyncAudioPassthrough_8h_source.html#l00154">Async::AudioPassthrough::flushSamples()</a>, <a class="el" href="AsyncAudioDebugger_8h_source.html#l00176">Async::AudioDebugger::flushSamples()</a>, and <a class="el" href="AsyncAudioValve_8h_source.html#l00142">Async::AudioValve::setOpen()</a>.</p>
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<a class="anchor" id="a451d8b376851c54a4e0780dcea9a9739"></a><!-- doxytag: member="Async::AudioSource::sinkManaged" ref="a451d8b376851c54a4e0780dcea9a9739" args="(void) const " -->
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<td class="memname">bool Async::AudioSource::sinkManaged </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td>
<td> ) </td>
<td> const<code> [inline]</code></td>
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<p>Check if the sink is managed or not. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>Returns <em>true</em> if the sink is managed or <em>false</em> if not</dd></dl>
<p>This function is used to find out if the connected sink is managed or not. A managed sink will automatically be deleted when this source object is deleted. </p>
<p>Definition at line <a class="el" href="AsyncAudioSource_8h_source.html#l00165">165</a> of file <a class="el" href="AsyncAudioSource_8h_source.html">AsyncAudioSource.h</a>.</p>
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<a class="anchor" id="ad23a249abf0f8fd39d364301364740a6"></a><!-- doxytag: member="Async::AudioSource::sinkWriteSamples" ref="ad23a249abf0f8fd39d364301364740a6" args="(const float *samples, int len)" -->
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<td class="memname">int Async::AudioSource::sinkWriteSamples </td>
<td>(</td>
<td class="paramtype">const float * </td>
<td class="paramname"> <em>samples</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>len</em></td><td> </td>
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<td></td>
<td>)</td>
<td></td><td></td><td><code> [protected]</code></td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="AsyncAudioIO__demo_8cpp-example.html#a5">AsyncAudioIO_demo.cpp</a>.</dd>
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<p>Referenced by <a class="el" href="AsyncAudioValve_8h_source.html#l00233">Async::AudioValve::writeSamples()</a>, <a class="el" href="AsyncAudioPassthrough_8h_source.html#l00141">Async::AudioPassthrough::writeSamples()</a>, and <a class="el" href="AsyncAudioDebugger_8h_source.html#l00160">Async::AudioDebugger::writeSamples()</a>.</p>
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<a class="anchor" id="a898aada74ec99cad0cb2edb1b7f534e4"></a><!-- doxytag: member="Async::AudioSource::unregisterSink" ref="a898aada74ec99cad0cb2edb1b7f534e4" args="(void)" -->
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<td class="memname">void Async::AudioSource::unregisterSink </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td>
<td> ) </td>
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<p>Unregister the previously registered audio sink. </p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="AsyncAudioSource_8h_source.html">AsyncAudioSource.h</a></li>
</ul>
</div>
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