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<h1>RtAudio.h</h1><a href="RtAudio_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/************************************************************************/</span>
<a name="l00039"></a>00039 <span class="comment">/************************************************************************/</span>
<a name="l00040"></a>00040 
<a name="l00045"></a>00045 <span class="comment">// RtAudio: Version 4.0.11</span>
<a name="l00046"></a>00046 
<a name="l00047"></a>00047 <span class="preprocessor">#ifndef __RTAUDIO_H</span>
<a name="l00048"></a>00048 <span class="preprocessor"></span><span class="preprocessor">#define __RTAUDIO_H</span>
<a name="l00049"></a>00049 <span class="preprocessor"></span>
<a name="l00050"></a>00050 <span class="preprocessor">#include &lt;string&gt;</span>
<a name="l00051"></a>00051 <span class="preprocessor">#include &lt;vector&gt;</span>
<a name="l00052"></a>00052 <span class="preprocessor">#include &quot;RtError.h&quot;</span>
<a name="l00053"></a>00053 
<a name="l00072"></a><a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8">00072</a> <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a>;
<a name="l00073"></a>00073 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> RTAUDIO_SINT8 = 0x1;    <span class="comment">// 8-bit signed integer.</span>
<a name="l00074"></a>00074 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> RTAUDIO_SINT16 = 0x2;   <span class="comment">// 16-bit signed integer.</span>
<a name="l00075"></a>00075 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> RTAUDIO_SINT24 = 0x4;   <span class="comment">// Lower 3 bytes of 32-bit signed integer.</span>
<a name="l00076"></a>00076 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> RTAUDIO_SINT32 = 0x8;   <span class="comment">// 32-bit signed integer.</span>
<a name="l00077"></a>00077 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> RTAUDIO_FLOAT32 = 0x10; <span class="comment">// Normalized between plus/minus 1.0.</span>
<a name="l00078"></a>00078 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> RTAUDIO_FLOAT64 = 0x20; <span class="comment">// Normalized between plus/minus 1.0.</span>
<a name="l00079"></a>00079 
<a name="l00122"></a><a class="code" href="RtAudio_8h.html#a2c0f59b200dcec4d4e760f9166b29c41">00122</a> <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="RtAudio_8h.html#a2c0f59b200dcec4d4e760f9166b29c41" title="RtAudio stream option flags.">RtAudioStreamFlags</a>;
<a name="l00123"></a>00123 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a2c0f59b200dcec4d4e760f9166b29c41" title="RtAudio stream option flags.">RtAudioStreamFlags</a> RTAUDIO_NONINTERLEAVED = 0x1;    <span class="comment">// Use non-interleaved buffers (default = interleaved).</span>
<a name="l00124"></a>00124 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a2c0f59b200dcec4d4e760f9166b29c41" title="RtAudio stream option flags.">RtAudioStreamFlags</a> RTAUDIO_MINIMIZE_LATENCY = 0x2;  <span class="comment">// Attempt to set stream parameters for lowest possible latency.</span>
<a name="l00125"></a>00125 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a2c0f59b200dcec4d4e760f9166b29c41" title="RtAudio stream option flags.">RtAudioStreamFlags</a> RTAUDIO_HOG_DEVICE = 0x4;        <span class="comment">// Attempt grab device and prevent use by others.</span>
<a name="l00126"></a>00126 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a2c0f59b200dcec4d4e760f9166b29c41" title="RtAudio stream option flags.">RtAudioStreamFlags</a> RTAUDIO_SCHEDULE_REALTIME = 0x8; <span class="comment">// Try to select realtime scheduling for callback thread.</span>
<a name="l00127"></a>00127 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a2c0f59b200dcec4d4e760f9166b29c41" title="RtAudio stream option flags.">RtAudioStreamFlags</a> RTAUDIO_ALSA_USE_DEFAULT = 0x10; <span class="comment">// Use the &quot;default&quot; PCM device (ALSA only).</span>
<a name="l00128"></a>00128 
<a name="l00140"></a><a class="code" href="RtAudio_8h.html#a80e306d363583da3b0a1b65d9b57c806">00140</a> <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="RtAudio_8h.html#a80e306d363583da3b0a1b65d9b57c806" title="RtAudio stream status (over- or underflow) flags.">RtAudioStreamStatus</a>;
<a name="l00141"></a>00141 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a80e306d363583da3b0a1b65d9b57c806" title="RtAudio stream status (over- or underflow) flags.">RtAudioStreamStatus</a> RTAUDIO_INPUT_OVERFLOW = 0x1;    <span class="comment">// Input data was discarded because of an overflow condition at the driver.</span>
<a name="l00142"></a>00142 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a80e306d363583da3b0a1b65d9b57c806" title="RtAudio stream status (over- or underflow) flags.">RtAudioStreamStatus</a> RTAUDIO_OUTPUT_UNDERFLOW = 0x2;  <span class="comment">// The output buffer ran low, likely causing a gap in the output sound.</span>
<a name="l00143"></a>00143 
<a name="l00145"></a>00145 
<a name="l00183"></a><a class="code" href="RtAudio_8h.html#a112c7b7e25a974977f6fc094cef1a31f">00183</a> <span class="keyword">typedef</span> int (*<a class="code" href="RtAudio_8h.html#a112c7b7e25a974977f6fc094cef1a31f" title="RtAudio callback function prototype.">RtAudioCallback</a>)( <span class="keywordtype">void</span> *outputBuffer, <span class="keywordtype">void</span> *inputBuffer,
<a name="l00184"></a>00184                                 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nFrames,
<a name="l00185"></a>00185                                 <span class="keywordtype">double</span> streamTime,
<a name="l00186"></a>00186                                 <a class="code" href="RtAudio_8h.html#a80e306d363583da3b0a1b65d9b57c806" title="RtAudio stream status (over- or underflow) flags.">RtAudioStreamStatus</a> status,
<a name="l00187"></a>00187                                 <span class="keywordtype">void</span> *userData );
<a name="l00188"></a>00188 
<a name="l00189"></a>00189 
<a name="l00190"></a>00190 <span class="comment">// **************************************************************** //</span>
<a name="l00191"></a>00191 <span class="comment">//</span>
<a name="l00192"></a>00192 <span class="comment">// RtAudio class declaration.</span>
<a name="l00193"></a>00193 <span class="comment">//</span>
<a name="l00194"></a>00194 <span class="comment">// RtAudio is a &quot;controller&quot; used to select an available audio i/o</span>
<a name="l00195"></a>00195 <span class="comment">// interface.  It presents a common API for the user to call but all</span>
<a name="l00196"></a>00196 <span class="comment">// functionality is implemented by the class RtApi and its</span>
<a name="l00197"></a>00197 <span class="comment">// subclasses.  RtAudio creates an instance of an RtApi subclass</span>
<a name="l00198"></a>00198 <span class="comment">// based on the user&#39;s API choice.  If no choice is made, RtAudio</span>
<a name="l00199"></a>00199 <span class="comment">// attempts to make a &quot;logical&quot; API selection.</span>
<a name="l00200"></a>00200 <span class="comment">//</span>
<a name="l00201"></a>00201 <span class="comment">// **************************************************************** //</span>
<a name="l00202"></a>00202 
<a name="l00203"></a>00203 <span class="keyword">class </span>RtApi;
<a name="l00204"></a>00204 
<a name="l00205"></a><a class="code" href="classRtAudio.html">00205</a> <span class="keyword">class </span><a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ classes.">RtAudio</a>
<a name="l00206"></a>00206 {
<a name="l00207"></a>00207  <span class="keyword">public</span>:
<a name="l00208"></a>00208 
<a name="l00210"></a><a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849">00210</a>   <span class="keyword">enum</span> <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849" title="Audio API specifier arguments.">Api</a> {
<a name="l00211"></a><a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849aa49af3ac767106158bc6cad74fb214ae">00211</a>     <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849aa49af3ac767106158bc6cad74fb214ae">UNSPECIFIED</a>,    
<a name="l00212"></a><a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849aa7a2ba095c2806caa893b6fb8fc3a1a8">00212</a>     <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849aa7a2ba095c2806caa893b6fb8fc3a1a8">LINUX_ALSA</a>,     
<a name="l00213"></a><a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849adc17dff310e85d303fb326c837c08d77">00213</a>     <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849adc17dff310e85d303fb326c837c08d77">LINUX_PULSE</a>,    
<a name="l00214"></a><a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849a39c84615e61de75e6a4e865596d62c82">00214</a>     <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849a39c84615e61de75e6a4e865596d62c82">LINUX_OSS</a>,      
<a name="l00215"></a><a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849a4767e17c6edfbd827f91763915df4105">00215</a>     <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849a4767e17c6edfbd827f91763915df4105">UNIX_JACK</a>,      
<a name="l00216"></a><a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849a9fec92b8272244a87a6a11a717bd662d">00216</a>     <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849a9fec92b8272244a87a6a11a717bd662d">MACOSX_CORE</a>,    
<a name="l00217"></a><a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849a219517d1df90f94d07758481155bd469">00217</a>     <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849a219517d1df90f94d07758481155bd469">WINDOWS_ASIO</a>,   
<a name="l00218"></a><a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849a28478830f42c2fd61e6c7ad498901931">00218</a>     <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849a28478830f42c2fd61e6c7ad498901931">WINDOWS_DS</a>,     
<a name="l00219"></a><a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849ab06b8fd88bf18c9a2b8271f6961ae2d1">00219</a>     <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849ab06b8fd88bf18c9a2b8271f6961ae2d1">RTAUDIO_DUMMY</a>   
<a name="l00220"></a>00220   };
<a name="l00221"></a>00221 
<a name="l00223"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html">00223</a>   <span class="keyword">struct </span><a class="code" href="structRtAudio_1_1DeviceInfo.html" title="The public device information structure for returning queried values.">DeviceInfo</a> {
<a name="l00224"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#a97573717ccb1e75a834a0a108cd6982d">00224</a>     <span class="keywordtype">bool</span> <a class="code" href="structRtAudio_1_1DeviceInfo.html#a97573717ccb1e75a834a0a108cd6982d">probed</a>;                  
<a name="l00225"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#a24df596ab8d54f2eb540c7cf16212b3b">00225</a>     std::string <a class="code" href="structRtAudio_1_1DeviceInfo.html#a24df596ab8d54f2eb540c7cf16212b3b">name</a>;             
<a name="l00226"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#a81aaf488f8158ef55b1bb678f66feb7d">00226</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structRtAudio_1_1DeviceInfo.html#a81aaf488f8158ef55b1bb678f66feb7d">outputChannels</a>;  
<a name="l00227"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#a56247b458a937ae84d98ca9c4b243275">00227</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structRtAudio_1_1DeviceInfo.html#a56247b458a937ae84d98ca9c4b243275">inputChannels</a>;   
<a name="l00228"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#a3e8ad34c2d14e24293a0beafc26186e7">00228</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structRtAudio_1_1DeviceInfo.html#a3e8ad34c2d14e24293a0beafc26186e7">duplexChannels</a>;  
<a name="l00229"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#a5365245e73ffe29a05734de4474acd58">00229</a>     <span class="keywordtype">bool</span> <a class="code" href="structRtAudio_1_1DeviceInfo.html#a5365245e73ffe29a05734de4474acd58">isDefaultOutput</a>;         
<a name="l00230"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#a7c8aca084bd908799b6be5954b80def2">00230</a>     <span class="keywordtype">bool</span> <a class="code" href="structRtAudio_1_1DeviceInfo.html#a7c8aca084bd908799b6be5954b80def2">isDefaultInput</a>;          
<a name="l00231"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#afa65f5f92f66ce7aacd3ff35e11b230f">00231</a>     std::vector&lt;unsigned int&gt; <a class="code" href="structRtAudio_1_1DeviceInfo.html#afa65f5f92f66ce7aacd3ff35e11b230f">sampleRates</a>; 
<a name="l00232"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#a23251b549b89b2fe04a57fcd7cb76ea4">00232</a>     <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> <a class="code" href="structRtAudio_1_1DeviceInfo.html#a23251b549b89b2fe04a57fcd7cb76ea4">nativeFormats</a>;  
<a name="l00234"></a>00234     <span class="comment">// Default constructor.</span>
<a name="l00235"></a>00235     <a class="code" href="structRtAudio_1_1DeviceInfo.html" title="The public device information structure for returning queried values.">DeviceInfo</a>()
<a name="l00236"></a>00236       :<a class="code" href="structRtAudio_1_1DeviceInfo.html#a97573717ccb1e75a834a0a108cd6982d">probed</a>(false), <a class="code" href="structRtAudio_1_1DeviceInfo.html#a81aaf488f8158ef55b1bb678f66feb7d">outputChannels</a>(0), <a class="code" href="structRtAudio_1_1DeviceInfo.html#a56247b458a937ae84d98ca9c4b243275">inputChannels</a>(0), <a class="code" href="structRtAudio_1_1DeviceInfo.html#a3e8ad34c2d14e24293a0beafc26186e7">duplexChannels</a>(0),
<a name="l00237"></a>00237        <a class="code" href="structRtAudio_1_1DeviceInfo.html#a5365245e73ffe29a05734de4474acd58">isDefaultOutput</a>(false), <a class="code" href="structRtAudio_1_1DeviceInfo.html#a7c8aca084bd908799b6be5954b80def2">isDefaultInput</a>(false), <a class="code" href="structRtAudio_1_1DeviceInfo.html#a23251b549b89b2fe04a57fcd7cb76ea4">nativeFormats</a>(0) {}
<a name="l00238"></a>00238   };
<a name="l00239"></a>00239 
<a name="l00241"></a><a class="code" href="structRtAudio_1_1StreamParameters.html">00241</a>   <span class="keyword">struct </span><a class="code" href="structRtAudio_1_1StreamParameters.html" title="The structure for specifying input or ouput stream parameters.">StreamParameters</a> {
<a name="l00242"></a><a class="code" href="structRtAudio_1_1StreamParameters.html#ab3c72bcf3ef12149ae9a4fb597cc5489">00242</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structRtAudio_1_1StreamParameters.html#ab3c72bcf3ef12149ae9a4fb597cc5489">deviceId</a>;     
<a name="l00243"></a><a class="code" href="structRtAudio_1_1StreamParameters.html#a88a10091b6e284e21235cc6f25332ebd">00243</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structRtAudio_1_1StreamParameters.html#a88a10091b6e284e21235cc6f25332ebd">nChannels</a>;    
<a name="l00244"></a><a class="code" href="structRtAudio_1_1StreamParameters.html#ad4b4503782653ec93c83328c46abe50c">00244</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structRtAudio_1_1StreamParameters.html#ad4b4503782653ec93c83328c46abe50c">firstChannel</a>; 
<a name="l00246"></a>00246     <span class="comment">// Default constructor.</span>
<a name="l00247"></a>00247     <a class="code" href="structRtAudio_1_1StreamParameters.html" title="The structure for specifying input or ouput stream parameters.">StreamParameters</a>()
<a name="l00248"></a>00248       : <a class="code" href="structRtAudio_1_1StreamParameters.html#ab3c72bcf3ef12149ae9a4fb597cc5489">deviceId</a>(0), <a class="code" href="structRtAudio_1_1StreamParameters.html#a88a10091b6e284e21235cc6f25332ebd">nChannels</a>(0), <a class="code" href="structRtAudio_1_1StreamParameters.html#ad4b4503782653ec93c83328c46abe50c">firstChannel</a>(0) {}
<a name="l00249"></a>00249   };
<a name="l00250"></a>00250 
<a name="l00252"></a>00252 
<a name="l00308"></a><a class="code" href="structRtAudio_1_1StreamOptions.html">00308</a>   <span class="keyword">struct </span><a class="code" href="structRtAudio_1_1StreamOptions.html" title="The structure for specifying stream options.">StreamOptions</a> {
<a name="l00309"></a><a class="code" href="structRtAudio_1_1StreamOptions.html#a0ecc98b031aa3af49d09b781643e298b">00309</a>     <a class="code" href="RtAudio_8h.html#a2c0f59b200dcec4d4e760f9166b29c41" title="RtAudio stream option flags.">RtAudioStreamFlags</a> <a class="code" href="structRtAudio_1_1StreamOptions.html#a0ecc98b031aa3af49d09b781643e298b">flags</a>;      
<a name="l00310"></a><a class="code" href="structRtAudio_1_1StreamOptions.html#a75a14cfab903d0e1c091bc16aec80240">00310</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structRtAudio_1_1StreamOptions.html#a75a14cfab903d0e1c091bc16aec80240">numberOfBuffers</a>;  
<a name="l00311"></a><a class="code" href="structRtAudio_1_1StreamOptions.html#a2a4b0b8d690c624d20f4e8f4be6ca9ba">00311</a>     std::string <a class="code" href="structRtAudio_1_1StreamOptions.html#a2a4b0b8d690c624d20f4e8f4be6ca9ba">streamName</a>;        
<a name="l00312"></a><a class="code" href="structRtAudio_1_1StreamOptions.html#adfd267059434edb21573c584e6367def">00312</a>     <span class="keywordtype">int</span> <a class="code" href="structRtAudio_1_1StreamOptions.html#adfd267059434edb21573c584e6367def">priority</a>;                  
<a name="l00314"></a>00314     <span class="comment">// Default constructor.</span>
<a name="l00315"></a>00315     <a class="code" href="structRtAudio_1_1StreamOptions.html" title="The structure for specifying stream options.">StreamOptions</a>()
<a name="l00316"></a>00316     : <a class="code" href="structRtAudio_1_1StreamOptions.html#a0ecc98b031aa3af49d09b781643e298b">flags</a>(0), <a class="code" href="structRtAudio_1_1StreamOptions.html#a75a14cfab903d0e1c091bc16aec80240">numberOfBuffers</a>(0), <a class="code" href="structRtAudio_1_1StreamOptions.html#adfd267059434edb21573c584e6367def">priority</a>(0) {}
<a name="l00317"></a>00317   };
<a name="l00318"></a>00318 
<a name="l00320"></a>00320 
<a name="l00325"></a>00325   <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#ae266ffad2ef428d0b2c6c262d391ce26" title="A static function to determine the available compiled audio APIs.">getCompiledApi</a>( std::vector&lt;RtAudio::Api&gt; &amp;apis ) <span class="keywordflow">throw</span>();
<a name="l00326"></a>00326 
<a name="l00328"></a>00328 
<a name="l00336"></a>00336   <a class="code" href="classRtAudio.html#afd0bfa26deae9804e18faff59d0273d9" title="The class constructor.">RtAudio</a>( <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849" title="Audio API specifier arguments.">RtAudio::Api</a> api=<a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849aa49af3ac767106158bc6cad74fb214ae">UNSPECIFIED</a> ) throw();
<a name="l00337"></a>00337 
<a name="l00339"></a>00339 
<a name="l00343"></a>00343   ~<a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ classes.">RtAudio</a>() throw();
<a name="l00344"></a>00344 
<a name="l00346"></a>00346   <a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ classes.">RtAudio</a>::<a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849" title="Audio API specifier arguments.">Api</a> <a class="code" href="classRtAudio.html#a83687634795792b2c47e4ae1cf8a5246" title="Returns the audio API specifier for the current instance of RtAudio.">getCurrentApi</a>( <span class="keywordtype">void</span> ) throw();
<a name="l00347"></a>00347 
<a name="l00349"></a>00349 
<a name="l00354"></a>00354   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a747ce2d73803641bbb66d6e78092aa1a" title="A public function that queries for the number of audio devices available.">getDeviceCount</a>( <span class="keywordtype">void</span> ) throw();
<a name="l00355"></a>00355 
<a name="l00357"></a>00357 
<a name="l00367"></a>00367   <a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ classes.">RtAudio</a>::DeviceInfo <a class="code" href="classRtAudio.html#a02d7ff44ad1d7eae22283a052f3dfda8" title="Return an RtAudio::DeviceInfo structure for a specified device number.">getDeviceInfo</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device );
<a name="l00368"></a>00368 
<a name="l00370"></a>00370 
<a name="l00377"></a>00377   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a3a3f3dbe13ea696b521e49cdaaa357bc" title="A function that returns the index of the default output device.">getDefaultOutputDevice</a>( <span class="keywordtype">void</span> ) throw();
<a name="l00378"></a>00378 
<a name="l00380"></a>00380 
<a name="l00387"></a>00387   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#aad8b94edd3cd379ee300b125750ac6ce" title="A function that returns the index of the default input device.">getDefaultInputDevice</a>( <span class="keywordtype">void</span> ) throw();
<a name="l00388"></a>00388 
<a name="l00390"></a>00390 
<a name="l00427"></a>00427   <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#afacc99740fa4c5606fb35467cdea6da8" title="A public function for opening a stream with the specified parameters.">openStream</a>( <a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ classes.">RtAudio</a>::StreamParameters *outputParameters,
<a name="l00428"></a>00428                    <a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ classes.">RtAudio</a>::StreamParameters *inputParameters,
<a name="l00429"></a>00429                    <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,
<a name="l00430"></a>00430                    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferFrames, <a class="code" href="RtAudio_8h.html#a112c7b7e25a974977f6fc094cef1a31f" title="RtAudio callback function prototype.">RtAudioCallback</a> callback,
<a name="l00431"></a>00431                    <span class="keywordtype">void</span> *userData = NULL, <a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ classes.">RtAudio</a>::StreamOptions *options = NULL );
<a name="l00432"></a>00432 
<a name="l00434"></a>00434 
<a name="l00438"></a>00438   <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a90d599002ad32cf250a4cb866f2cc93a" title="A function that closes a stream and frees any associated stream memory.">closeStream</a>( <span class="keywordtype">void</span> ) throw();
<a name="l00439"></a>00439 
<a name="l00441"></a>00441 
<a name="l00447"></a>00447   <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#aec017a89629ccef66a90b60be22a2f80" title="A function that starts a stream.">startStream</a>( <span class="keywordtype">void</span> );
<a name="l00448"></a>00448 
<a name="l00450"></a>00450 
<a name="l00456"></a>00456   <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#af4c241ff86936ecc8108f0d9dfe3efdd" title="Stop a stream, allowing any samples remaining in the output queue to be played.">stopStream</a>( <span class="keywordtype">void</span> );
<a name="l00457"></a>00457 
<a name="l00459"></a>00459 
<a name="l00465"></a>00465   <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#ad0586b47cd6bb9591a80b4052815991f" title="Stop a stream, discarding any samples remaining in the input/output queue.">abortStream</a>( <span class="keywordtype">void</span> );
<a name="l00466"></a>00466 
<a name="l00468"></a>00468   <span class="keywordtype">bool</span> <a class="code" href="classRtAudio.html#a3863e45ff81dbe97176de0ee7545917f" title="Returns true if a stream is open and false if not.">isStreamOpen</a>( <span class="keywordtype">void</span> ) const throw();
<a name="l00469"></a>00469 
<a name="l00471"></a>00471   <span class="keywordtype">bool</span> <a class="code" href="classRtAudio.html#a84cc8d9b7ab9bc5f37bcf48430ec5aea" title="Returns true if the stream is running and false if it is stopped or not open.">isStreamRunning</a>( <span class="keywordtype">void</span> ) const throw();
<a name="l00472"></a>00472 
<a name="l00474"></a>00474 
<a name="l00477"></a>00477   <span class="keywordtype">double</span> <a class="code" href="classRtAudio.html#a344e59a62353c5791db4621b985cb2ca" title="Returns the number of elapsed seconds since the stream was started.">getStreamTime</a>( <span class="keywordtype">void</span> );
<a name="l00478"></a>00478 
<a name="l00480"></a>00480 
<a name="l00488"></a>00488   <span class="keywordtype">long</span> <a class="code" href="classRtAudio.html#a843c989d9f501c71bc2f2c5ca18df9f3" title="Returns the internal stream latency in sample frames.">getStreamLatency</a>( <span class="keywordtype">void</span> );
<a name="l00489"></a>00489 
<a name="l00491"></a>00491 
<a name="l00496"></a>00496   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a28214b8b05d60b45c24ee6fae7b2a0b5" title="Returns actual sample rate in use by the stream.">getStreamSampleRate</a>( <span class="keywordtype">void</span> );
<a name="l00497"></a>00497 
<a name="l00499"></a>00499   <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#af0752ee51cce3dd90a3bd009f9fdbe77" title="Specify whether warning messages should be printed to stderr.">showWarnings</a>( <span class="keywordtype">bool</span> value = true ) throw();
<a name="l00500"></a>00500 
<a name="l00501"></a>00501  protected:
<a name="l00502"></a>00502 
<a name="l00503"></a>00503   <span class="keywordtype">void</span> openRtApi( <a class="code" href="classRtAudio.html" title="Realtime audio i/o C++ classes.">RtAudio</a>::<a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849" title="Audio API specifier arguments.">Api</a> api );
<a name="l00504"></a>00504   RtApi *rtapi_;
<a name="l00505"></a>00505 };
<a name="l00506"></a>00506 
<a name="l00507"></a>00507 <span class="comment">// Operating system dependent thread functionality.</span>
<a name="l00508"></a>00508 <span class="preprocessor">#if defined(__WINDOWS_DS__) || defined(__WINDOWS_ASIO__)</span>
<a name="l00509"></a>00509 <span class="preprocessor"></span><span class="preprocessor">  #include &lt;windows.h&gt;</span>
<a name="l00510"></a>00510 <span class="preprocessor">  #include &lt;process.h&gt;</span>
<a name="l00511"></a>00511 
<a name="l00512"></a>00512   <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> ThreadHandle;
<a name="l00513"></a>00513   <span class="keyword">typedef</span> CRITICAL_SECTION StreamMutex;
<a name="l00514"></a>00514 
<a name="l00515"></a>00515 <span class="preprocessor">#elif defined(__LINUX_ALSA__) || defined(__LINUX_PULSE__) || defined(__UNIX_JACK__) || defined(__LINUX_OSS__) || defined(__MACOSX_CORE__)</span>
<a name="l00516"></a>00516 <span class="preprocessor"></span>  <span class="comment">// Using pthread library for various flavors of unix.</span>
<a name="l00517"></a>00517 <span class="preprocessor">  #include &lt;pthread.h&gt;</span>
<a name="l00518"></a>00518 
<a name="l00519"></a>00519   <span class="keyword">typedef</span> pthread_t ThreadHandle;
<a name="l00520"></a>00520   <span class="keyword">typedef</span> pthread_mutex_t StreamMutex;
<a name="l00521"></a>00521 
<a name="l00522"></a>00522 <span class="preprocessor">#else // Setup for &quot;dummy&quot; behavior</span>
<a name="l00523"></a>00523 <span class="preprocessor"></span>
<a name="l00524"></a>00524 <span class="preprocessor">  #define __RTAUDIO_DUMMY__</span>
<a name="l00525"></a>00525 <span class="preprocessor"></span>  <span class="keyword">typedef</span> <span class="keywordtype">int</span> ThreadHandle;
<a name="l00526"></a>00526   <span class="keyword">typedef</span> <span class="keywordtype">int</span> StreamMutex;
<a name="l00527"></a>00527 
<a name="l00528"></a>00528 <span class="preprocessor">#endif</span>
<a name="l00529"></a>00529 <span class="preprocessor"></span>
<a name="l00530"></a>00530 <span class="comment">// This global structure type is used to pass callback information</span>
<a name="l00531"></a>00531 <span class="comment">// between the private RtAudio stream structure and global callback</span>
<a name="l00532"></a>00532 <span class="comment">// handling functions.</span>
<a name="l00533"></a>00533 <span class="keyword">struct </span>CallbackInfo {
<a name="l00534"></a>00534   <span class="keywordtype">void</span> *object;    <span class="comment">// Used as a &quot;this&quot; pointer.</span>
<a name="l00535"></a>00535   ThreadHandle thread;
<a name="l00536"></a>00536   <span class="keywordtype">void</span> *callback;
<a name="l00537"></a>00537   <span class="keywordtype">void</span> *userData;
<a name="l00538"></a>00538   <span class="keywordtype">void</span> *apiInfo;   <span class="comment">// void pointer for API specific callback information</span>
<a name="l00539"></a>00539   <span class="keywordtype">bool</span> isRunning;
<a name="l00540"></a>00540 
<a name="l00541"></a>00541   <span class="comment">// Default constructor.</span>
<a name="l00542"></a>00542   CallbackInfo()
<a name="l00543"></a>00543     :object(0), callback(0), userData(0), apiInfo(0), isRunning(false) {}
<a name="l00544"></a>00544 };
<a name="l00545"></a>00545 
<a name="l00546"></a>00546 <span class="comment">// **************************************************************** //</span>
<a name="l00547"></a>00547 <span class="comment">//</span>
<a name="l00548"></a>00548 <span class="comment">// RtApi class declaration.</span>
<a name="l00549"></a>00549 <span class="comment">//</span>
<a name="l00550"></a>00550 <span class="comment">// Subclasses of RtApi contain all API- and OS-specific code necessary</span>
<a name="l00551"></a>00551 <span class="comment">// to fully implement the RtAudio API.</span>
<a name="l00552"></a>00552 <span class="comment">//</span>
<a name="l00553"></a>00553 <span class="comment">// Note that RtApi is an abstract base class and cannot be</span>
<a name="l00554"></a>00554 <span class="comment">// explicitly instantiated.  The class RtAudio will create an</span>
<a name="l00555"></a>00555 <span class="comment">// instance of an RtApi subclass (RtApiOss, RtApiAlsa,</span>
<a name="l00556"></a>00556 <span class="comment">// RtApiJack, RtApiCore, RtApiDs, or RtApiAsio).</span>
<a name="l00557"></a>00557 <span class="comment">//</span>
<a name="l00558"></a>00558 <span class="comment">// **************************************************************** //</span>
<a name="l00559"></a>00559 
<a name="l00560"></a>00560 <span class="preprocessor">#if defined( HAVE_GETTIMEOFDAY )</span>
<a name="l00561"></a>00561 <span class="preprocessor"></span><span class="preprocessor">  #include &lt;sys/time.h&gt;</span>
<a name="l00562"></a>00562 <span class="preprocessor">#endif</span>
<a name="l00563"></a>00563 <span class="preprocessor"></span>
<a name="l00564"></a>00564 <span class="preprocessor">#include &lt;sstream&gt;</span>
<a name="l00565"></a>00565 
<a name="l00566"></a>00566 <span class="keyword">class </span>RtApi
<a name="l00567"></a>00567 {
<a name="l00568"></a>00568 <span class="keyword">public</span>:
<a name="l00569"></a>00569 
<a name="l00570"></a>00570   RtApi();
<a name="l00571"></a>00571   <span class="keyword">virtual</span> ~RtApi();
<a name="l00572"></a>00572   <span class="keyword">virtual</span> <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849" title="Audio API specifier arguments.">RtAudio::Api</a> <a class="code" href="classRtAudio.html#a83687634795792b2c47e4ae1cf8a5246" title="Returns the audio API specifier for the current instance of RtAudio.">getCurrentApi</a>( <span class="keywordtype">void</span> ) = 0;
<a name="l00573"></a>00573   <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a747ce2d73803641bbb66d6e78092aa1a" title="A public function that queries for the number of audio devices available.">getDeviceCount</a>( <span class="keywordtype">void</span> ) = 0;
<a name="l00574"></a>00574   <span class="keyword">virtual</span> <a class="code" href="structRtAudio_1_1DeviceInfo.html" title="The public device information structure for returning queried values.">RtAudio::DeviceInfo</a> <a class="code" href="classRtAudio.html#a02d7ff44ad1d7eae22283a052f3dfda8" title="Return an RtAudio::DeviceInfo structure for a specified device number.">getDeviceInfo</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device ) = 0;
<a name="l00575"></a>00575   <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#aad8b94edd3cd379ee300b125750ac6ce" title="A function that returns the index of the default input device.">getDefaultInputDevice</a>( <span class="keywordtype">void</span> );
<a name="l00576"></a>00576   <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a3a3f3dbe13ea696b521e49cdaaa357bc" title="A function that returns the index of the default output device.">getDefaultOutputDevice</a>( <span class="keywordtype">void</span> );
<a name="l00577"></a>00577   <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#afacc99740fa4c5606fb35467cdea6da8" title="A public function for opening a stream with the specified parameters.">openStream</a>( <a class="code" href="structRtAudio_1_1StreamParameters.html" title="The structure for specifying input or ouput stream parameters.">RtAudio::StreamParameters</a> *outputParameters,
<a name="l00578"></a>00578                    <a class="code" href="structRtAudio_1_1StreamParameters.html" title="The structure for specifying input or ouput stream parameters.">RtAudio::StreamParameters</a> *inputParameters,
<a name="l00579"></a>00579                    <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,
<a name="l00580"></a>00580                    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferFrames, <a class="code" href="RtAudio_8h.html#a112c7b7e25a974977f6fc094cef1a31f" title="RtAudio callback function prototype.">RtAudioCallback</a> callback,
<a name="l00581"></a>00581                    <span class="keywordtype">void</span> *userData, <a class="code" href="structRtAudio_1_1StreamOptions.html" title="The structure for specifying stream options.">RtAudio::StreamOptions</a> *options );
<a name="l00582"></a>00582   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a90d599002ad32cf250a4cb866f2cc93a" title="A function that closes a stream and frees any associated stream memory.">closeStream</a>( <span class="keywordtype">void</span> );
<a name="l00583"></a>00583   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#aec017a89629ccef66a90b60be22a2f80" title="A function that starts a stream.">startStream</a>( <span class="keywordtype">void</span> ) = 0;
<a name="l00584"></a>00584   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#af4c241ff86936ecc8108f0d9dfe3efdd" title="Stop a stream, allowing any samples remaining in the output queue to be played.">stopStream</a>( <span class="keywordtype">void</span> ) = 0;
<a name="l00585"></a>00585   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#ad0586b47cd6bb9591a80b4052815991f" title="Stop a stream, discarding any samples remaining in the input/output queue.">abortStream</a>( <span class="keywordtype">void</span> ) = 0;
<a name="l00586"></a>00586   <span class="keywordtype">long</span> <a class="code" href="classRtAudio.html#a843c989d9f501c71bc2f2c5ca18df9f3" title="Returns the internal stream latency in sample frames.">getStreamLatency</a>( <span class="keywordtype">void</span> );
<a name="l00587"></a>00587   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a28214b8b05d60b45c24ee6fae7b2a0b5" title="Returns actual sample rate in use by the stream.">getStreamSampleRate</a>( <span class="keywordtype">void</span> );
<a name="l00588"></a>00588   <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="classRtAudio.html#a344e59a62353c5791db4621b985cb2ca" title="Returns the number of elapsed seconds since the stream was started.">getStreamTime</a>( <span class="keywordtype">void</span> );
<a name="l00589"></a>00589   <span class="keywordtype">bool</span> <a class="code" href="classRtAudio.html#a3863e45ff81dbe97176de0ee7545917f" title="Returns true if a stream is open and false if not.">isStreamOpen</a>( <span class="keywordtype">void</span> )<span class="keyword"> const </span>{ <span class="keywordflow">return</span> stream_.state != STREAM_CLOSED; };
<a name="l00590"></a>00590   <span class="keywordtype">bool</span> <a class="code" href="classRtAudio.html#a84cc8d9b7ab9bc5f37bcf48430ec5aea" title="Returns true if the stream is running and false if it is stopped or not open.">isStreamRunning</a>( <span class="keywordtype">void</span> )<span class="keyword"> const </span>{ <span class="keywordflow">return</span> stream_.state == STREAM_RUNNING; };
<a name="l00591"></a>00591   <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#af0752ee51cce3dd90a3bd009f9fdbe77" title="Specify whether warning messages should be printed to stderr.">showWarnings</a>( <span class="keywordtype">bool</span> value ) { showWarnings_ = value; };
<a name="l00592"></a>00592 
<a name="l00593"></a>00593 
<a name="l00594"></a>00594 <span class="keyword">protected</span>:
<a name="l00595"></a>00595 
<a name="l00596"></a>00596   <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> MAX_SAMPLE_RATES;
<a name="l00597"></a>00597   <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> SAMPLE_RATES[];
<a name="l00598"></a>00598 
<a name="l00599"></a>00599   <span class="keyword">enum</span> { FAILURE, SUCCESS };
<a name="l00600"></a>00600 
<a name="l00601"></a>00601   <span class="keyword">enum</span> StreamState {
<a name="l00602"></a>00602     STREAM_STOPPED,
<a name="l00603"></a>00603     STREAM_STOPPING,
<a name="l00604"></a>00604     STREAM_RUNNING,
<a name="l00605"></a>00605     STREAM_CLOSED = -50
<a name="l00606"></a>00606   };
<a name="l00607"></a>00607 
<a name="l00608"></a>00608   <span class="keyword">enum</span> StreamMode {
<a name="l00609"></a>00609     OUTPUT,
<a name="l00610"></a>00610     INPUT,
<a name="l00611"></a>00611     DUPLEX,
<a name="l00612"></a>00612     UNINITIALIZED = -75
<a name="l00613"></a>00613   };
<a name="l00614"></a>00614 
<a name="l00615"></a>00615   <span class="comment">// A protected structure used for buffer conversion.</span>
<a name="l00616"></a>00616   <span class="keyword">struct </span>ConvertInfo {
<a name="l00617"></a>00617     <span class="keywordtype">int</span> channels;
<a name="l00618"></a>00618     <span class="keywordtype">int</span> inJump, outJump;
<a name="l00619"></a>00619     <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> inFormat, outFormat;
<a name="l00620"></a>00620     std::vector&lt;int&gt; inOffset;
<a name="l00621"></a>00621     std::vector&lt;int&gt; outOffset;
<a name="l00622"></a>00622   };
<a name="l00623"></a>00623 
<a name="l00624"></a>00624   <span class="comment">// A protected structure for audio streams.</span>
<a name="l00625"></a>00625   <span class="keyword">struct </span>RtApiStream {
<a name="l00626"></a>00626     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device[2];    <span class="comment">// Playback and record, respectively.</span>
<a name="l00627"></a>00627     <span class="keywordtype">void</span> *apiHandle;           <span class="comment">// void pointer for API specific stream handle information</span>
<a name="l00628"></a>00628     StreamMode mode;           <span class="comment">// OUTPUT, INPUT, or DUPLEX.</span>
<a name="l00629"></a>00629     StreamState state;         <span class="comment">// STOPPED, RUNNING, or CLOSED</span>
<a name="l00630"></a>00630     <span class="keywordtype">char</span> *userBuffer[2];       <span class="comment">// Playback and record, respectively.</span>
<a name="l00631"></a>00631     <span class="keywordtype">char</span> *deviceBuffer;
<a name="l00632"></a>00632     <span class="keywordtype">bool</span> doConvertBuffer[2];   <span class="comment">// Playback and record, respectively.</span>
<a name="l00633"></a>00633     <span class="keywordtype">bool</span> userInterleaved;
<a name="l00634"></a>00634     <span class="keywordtype">bool</span> deviceInterleaved[2]; <span class="comment">// Playback and record, respectively.</span>
<a name="l00635"></a>00635     <span class="keywordtype">bool</span> doByteSwap[2];        <span class="comment">// Playback and record, respectively.</span>
<a name="l00636"></a>00636     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate;
<a name="l00637"></a>00637     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> bufferSize;
<a name="l00638"></a>00638     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nBuffers;
<a name="l00639"></a>00639     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nUserChannels[2];    <span class="comment">// Playback and record, respectively.</span>
<a name="l00640"></a>00640     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nDeviceChannels[2];  <span class="comment">// Playback and record channels, respectively.</span>
<a name="l00641"></a>00641     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channelOffset[2];    <span class="comment">// Playback and record, respectively.</span>
<a name="l00642"></a>00642     <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> latency[2];         <span class="comment">// Playback and record, respectively.</span>
<a name="l00643"></a>00643     <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> userFormat;
<a name="l00644"></a>00644     <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> deviceFormat[2];    <span class="comment">// Playback and record, respectively.</span>
<a name="l00645"></a>00645     StreamMutex mutex;
<a name="l00646"></a>00646     CallbackInfo callbackInfo;
<a name="l00647"></a>00647     ConvertInfo convertInfo[2];
<a name="l00648"></a>00648     <span class="keywordtype">double</span> streamTime;         <span class="comment">// Number of elapsed seconds since the stream started.</span>
<a name="l00649"></a>00649 
<a name="l00650"></a>00650 <span class="preprocessor">#if defined(HAVE_GETTIMEOFDAY)</span>
<a name="l00651"></a>00651 <span class="preprocessor"></span>    <span class="keyword">struct </span>timeval lastTickTimestamp;
<a name="l00652"></a>00652 <span class="preprocessor">#endif</span>
<a name="l00653"></a>00653 <span class="preprocessor"></span>
<a name="l00654"></a>00654     RtApiStream()
<a name="l00655"></a>00655       :apiHandle(0), deviceBuffer(0) { device[0] = 11111; device[1] = 11111; }
<a name="l00656"></a>00656   };
<a name="l00657"></a>00657 
<a name="l00658"></a>00658   <span class="keyword">typedef</span> <span class="keywordtype">signed</span> <span class="keywordtype">short</span> Int16;
<a name="l00659"></a>00659   <span class="keyword">typedef</span> <span class="keywordtype">signed</span> <span class="keywordtype">int</span> Int32;
<a name="l00660"></a>00660   <span class="keyword">typedef</span> <span class="keywordtype">float</span> Float32;
<a name="l00661"></a>00661   <span class="keyword">typedef</span> <span class="keywordtype">double</span> Float64;
<a name="l00662"></a>00662 
<a name="l00663"></a>00663   std::ostringstream errorStream_;
<a name="l00664"></a>00664   std::string errorText_;
<a name="l00665"></a>00665   <span class="keywordtype">bool</span> showWarnings_;
<a name="l00666"></a>00666   RtApiStream stream_;
<a name="l00667"></a>00667 
<a name="l00675"></a>00675   <span class="keyword">virtual</span> <span class="keywordtype">bool</span> probeDeviceOpen( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device, StreamMode mode, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channels, 
<a name="l00676"></a>00676                                 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,
<a name="l00677"></a>00677                                 <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferSize,
<a name="l00678"></a>00678                                 <a class="code" href="structRtAudio_1_1StreamOptions.html" title="The structure for specifying stream options.">RtAudio::StreamOptions</a> *options );
<a name="l00679"></a>00679 
<a name="l00681"></a>00681   <span class="keywordtype">void</span> tickStreamTime( <span class="keywordtype">void</span> );
<a name="l00682"></a>00682 
<a name="l00684"></a>00684   <span class="keywordtype">void</span> clearStreamInfo();
<a name="l00685"></a>00685 
<a name="l00690"></a>00690   <span class="keywordtype">void</span> verifyStream( <span class="keywordtype">void</span> );
<a name="l00691"></a>00691 
<a name="l00693"></a>00693   <span class="keywordtype">void</span> error( <a class="code" href="classRtError.html#ab04667aae01bffc354a9ac6bda6903ac" title="Defined RtError types.">RtError::Type</a> type );
<a name="l00694"></a>00694 
<a name="l00699"></a>00699   <span class="keywordtype">void</span> convertBuffer( <span class="keywordtype">char</span> *outBuffer, <span class="keywordtype">char</span> *inBuffer, ConvertInfo &amp;info );
<a name="l00700"></a>00700 
<a name="l00702"></a>00702   <span class="keywordtype">void</span> byteSwapBuffer( <span class="keywordtype">char</span> *buffer, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> samples, <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> format );
<a name="l00703"></a>00703 
<a name="l00705"></a>00705   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> formatBytes( <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> format );
<a name="l00706"></a>00706 
<a name="l00708"></a>00708   <span class="keywordtype">void</span> setConvertInfo( StreamMode mode, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel );
<a name="l00709"></a>00709 };
<a name="l00710"></a>00710 
<a name="l00711"></a>00711 <span class="comment">// **************************************************************** //</span>
<a name="l00712"></a>00712 <span class="comment">//</span>
<a name="l00713"></a>00713 <span class="comment">// Inline RtAudio definitions.</span>
<a name="l00714"></a>00714 <span class="comment">//</span>
<a name="l00715"></a>00715 <span class="comment">// **************************************************************** //</span>
<a name="l00716"></a>00716 
<a name="l00717"></a><a class="code" href="classRtAudio.html#a83687634795792b2c47e4ae1cf8a5246">00717</a> <span class="keyword">inline</span> <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849" title="Audio API specifier arguments.">RtAudio::Api</a> <a class="code" href="classRtAudio.html#a83687634795792b2c47e4ae1cf8a5246" title="Returns the audio API specifier for the current instance of RtAudio.">RtAudio :: getCurrentApi</a>( <span class="keywordtype">void</span> ) throw() { <span class="keywordflow">return</span> rtapi_-&gt;getCurrentApi(); }
<a name="l00718"></a><a class="code" href="classRtAudio.html#a747ce2d73803641bbb66d6e78092aa1a">00718</a> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a747ce2d73803641bbb66d6e78092aa1a" title="A public function that queries for the number of audio devices available.">RtAudio :: getDeviceCount</a>( <span class="keywordtype">void</span> ) throw() { <span class="keywordflow">return</span> rtapi_-&gt;getDeviceCount(); }
<a name="l00719"></a><a class="code" href="classRtAudio.html#a02d7ff44ad1d7eae22283a052f3dfda8">00719</a> <span class="keyword">inline</span> <a class="code" href="structRtAudio_1_1DeviceInfo.html" title="The public device information structure for returning queried values.">RtAudio::DeviceInfo</a> <a class="code" href="classRtAudio.html#a02d7ff44ad1d7eae22283a052f3dfda8" title="Return an RtAudio::DeviceInfo structure for a specified device number.">RtAudio :: getDeviceInfo</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device ) { <span class="keywordflow">return</span> rtapi_-&gt;getDeviceInfo( device ); }
<a name="l00720"></a><a class="code" href="classRtAudio.html#aad8b94edd3cd379ee300b125750ac6ce">00720</a> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#aad8b94edd3cd379ee300b125750ac6ce" title="A function that returns the index of the default input device.">RtAudio :: getDefaultInputDevice</a>( <span class="keywordtype">void</span> ) throw() { <span class="keywordflow">return</span> rtapi_-&gt;getDefaultInputDevice(); }
<a name="l00721"></a><a class="code" href="classRtAudio.html#a3a3f3dbe13ea696b521e49cdaaa357bc">00721</a> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a3a3f3dbe13ea696b521e49cdaaa357bc" title="A function that returns the index of the default output device.">RtAudio :: getDefaultOutputDevice</a>( <span class="keywordtype">void</span> ) throw() { <span class="keywordflow">return</span> rtapi_-&gt;getDefaultOutputDevice(); }
<a name="l00722"></a><a class="code" href="classRtAudio.html#a90d599002ad32cf250a4cb866f2cc93a">00722</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a90d599002ad32cf250a4cb866f2cc93a" title="A function that closes a stream and frees any associated stream memory.">RtAudio :: closeStream</a>( <span class="keywordtype">void</span> ) throw() { <span class="keywordflow">return</span> rtapi_-&gt;closeStream(); }
<a name="l00723"></a><a class="code" href="classRtAudio.html#aec017a89629ccef66a90b60be22a2f80">00723</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#aec017a89629ccef66a90b60be22a2f80" title="A function that starts a stream.">RtAudio :: startStream</a>( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> rtapi_-&gt;startStream(); }
<a name="l00724"></a><a class="code" href="classRtAudio.html#af4c241ff86936ecc8108f0d9dfe3efdd">00724</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#af4c241ff86936ecc8108f0d9dfe3efdd" title="Stop a stream, allowing any samples remaining in the output queue to be played.">RtAudio :: stopStream</a>( <span class="keywordtype">void</span> )  { <span class="keywordflow">return</span> rtapi_-&gt;stopStream(); }
<a name="l00725"></a><a class="code" href="classRtAudio.html#ad0586b47cd6bb9591a80b4052815991f">00725</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#ad0586b47cd6bb9591a80b4052815991f" title="Stop a stream, discarding any samples remaining in the input/output queue.">RtAudio :: abortStream</a>( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> rtapi_-&gt;abortStream(); }
<a name="l00726"></a><a class="code" href="classRtAudio.html#a3863e45ff81dbe97176de0ee7545917f">00726</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classRtAudio.html#a3863e45ff81dbe97176de0ee7545917f" title="Returns true if a stream is open and false if not.">RtAudio :: isStreamOpen</a>( <span class="keywordtype">void</span> ) <span class="keyword">const</span> throw() { <span class="keywordflow">return</span> rtapi_-&gt;isStreamOpen(); }
<a name="l00727"></a><a class="code" href="classRtAudio.html#a84cc8d9b7ab9bc5f37bcf48430ec5aea">00727</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classRtAudio.html#a84cc8d9b7ab9bc5f37bcf48430ec5aea" title="Returns true if the stream is running and false if it is stopped or not open.">RtAudio :: isStreamRunning</a>( <span class="keywordtype">void</span> ) <span class="keyword">const</span> throw() { <span class="keywordflow">return</span> rtapi_-&gt;isStreamRunning(); }
<a name="l00728"></a><a class="code" href="classRtAudio.html#a843c989d9f501c71bc2f2c5ca18df9f3">00728</a> <span class="keyword">inline</span> <span class="keywordtype">long</span> <a class="code" href="classRtAudio.html#a843c989d9f501c71bc2f2c5ca18df9f3" title="Returns the internal stream latency in sample frames.">RtAudio :: getStreamLatency</a>( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> rtapi_-&gt;getStreamLatency(); }
<a name="l00729"></a><a class="code" href="classRtAudio.html#a28214b8b05d60b45c24ee6fae7b2a0b5">00729</a> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a28214b8b05d60b45c24ee6fae7b2a0b5" title="Returns actual sample rate in use by the stream.">RtAudio :: getStreamSampleRate</a>( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> rtapi_-&gt;getStreamSampleRate(); };
<a name="l00730"></a><a class="code" href="classRtAudio.html#a344e59a62353c5791db4621b985cb2ca">00730</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="classRtAudio.html#a344e59a62353c5791db4621b985cb2ca" title="Returns the number of elapsed seconds since the stream was started.">RtAudio :: getStreamTime</a>( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> rtapi_-&gt;getStreamTime(); }
<a name="l00731"></a><a class="code" href="classRtAudio.html#af0752ee51cce3dd90a3bd009f9fdbe77">00731</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#af0752ee51cce3dd90a3bd009f9fdbe77" title="Specify whether warning messages should be printed to stderr.">RtAudio :: showWarnings</a>( <span class="keywordtype">bool</span> value ) <span class="keywordflow">throw</span>() { rtapi_-&gt;showWarnings( value ); }
<a name="l00732"></a>00732 
<a name="l00733"></a>00733 <span class="comment">// RtApi Subclass prototypes.</span>
<a name="l00734"></a>00734 
<a name="l00735"></a>00735 <span class="preprocessor">#if defined(__MACOSX_CORE__)</span>
<a name="l00736"></a>00736 <span class="preprocessor"></span>
<a name="l00737"></a>00737 <span class="preprocessor">#include &lt;CoreAudio/AudioHardware.h&gt;</span>
<a name="l00738"></a>00738 
<a name="l00739"></a>00739 <span class="keyword">class </span>RtApiCore: <span class="keyword">public</span> RtApi
<a name="l00740"></a>00740 {
<a name="l00741"></a>00741 <span class="keyword">public</span>:
<a name="l00742"></a>00742 
<a name="l00743"></a>00743   RtApiCore();
<a name="l00744"></a>00744   ~RtApiCore();
<a name="l00745"></a>00745   <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849" title="Audio API specifier arguments.">RtAudio::Api</a> getCurrentApi( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849a9fec92b8272244a87a6a11a717bd662d">RtAudio::MACOSX_CORE</a>; };
<a name="l00746"></a>00746   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDeviceCount( <span class="keywordtype">void</span> );
<a name="l00747"></a>00747   <a class="code" href="structRtAudio_1_1DeviceInfo.html" title="The public device information structure for returning queried values.">RtAudio::DeviceInfo</a> getDeviceInfo( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device );
<a name="l00748"></a>00748   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDefaultOutputDevice( <span class="keywordtype">void</span> );
<a name="l00749"></a>00749   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDefaultInputDevice( <span class="keywordtype">void</span> );
<a name="l00750"></a>00750   <span class="keywordtype">void</span> closeStream( <span class="keywordtype">void</span> );
<a name="l00751"></a>00751   <span class="keywordtype">void</span> startStream( <span class="keywordtype">void</span> );
<a name="l00752"></a>00752   <span class="keywordtype">void</span> stopStream( <span class="keywordtype">void</span> );
<a name="l00753"></a>00753   <span class="keywordtype">void</span> abortStream( <span class="keywordtype">void</span> );
<a name="l00754"></a>00754   <span class="keywordtype">long</span> getStreamLatency( <span class="keywordtype">void</span> );
<a name="l00755"></a>00755 
<a name="l00756"></a>00756   <span class="comment">// This function is intended for internal use only.  It must be</span>
<a name="l00757"></a>00757   <span class="comment">// public because it is called by the internal callback handler,</span>
<a name="l00758"></a>00758   <span class="comment">// which is not a member of RtAudio.  External use of this function</span>
<a name="l00759"></a>00759   <span class="comment">// will most likely produce highly undesireable results!</span>
<a name="l00760"></a>00760   <span class="keywordtype">bool</span> callbackEvent( AudioDeviceID deviceId,
<a name="l00761"></a>00761                       <span class="keyword">const</span> AudioBufferList *inBufferList,
<a name="l00762"></a>00762                       <span class="keyword">const</span> AudioBufferList *outBufferList );
<a name="l00763"></a>00763 
<a name="l00764"></a>00764   <span class="keyword">private</span>:
<a name="l00765"></a>00765 
<a name="l00766"></a>00766   <span class="keywordtype">bool</span> probeDeviceOpen( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device, StreamMode mode, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channels, 
<a name="l00767"></a>00767                         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,
<a name="l00768"></a>00768                         <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferSize,
<a name="l00769"></a>00769                         <a class="code" href="structRtAudio_1_1StreamOptions.html" title="The structure for specifying stream options.">RtAudio::StreamOptions</a> *options );
<a name="l00770"></a>00770   <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* getErrorCode( OSStatus code );
<a name="l00771"></a>00771 };
<a name="l00772"></a>00772 
<a name="l00773"></a>00773 <span class="preprocessor">#endif</span>
<a name="l00774"></a>00774 <span class="preprocessor"></span>
<a name="l00775"></a>00775 <span class="preprocessor">#if defined(__UNIX_JACK__)</span>
<a name="l00776"></a>00776 <span class="preprocessor"></span>
<a name="l00777"></a>00777 <span class="keyword">class </span>RtApiJack: <span class="keyword">public</span> RtApi
<a name="l00778"></a>00778 {
<a name="l00779"></a>00779 <span class="keyword">public</span>:
<a name="l00780"></a>00780 
<a name="l00781"></a>00781   RtApiJack();
<a name="l00782"></a>00782   ~RtApiJack();
<a name="l00783"></a>00783   <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849" title="Audio API specifier arguments.">RtAudio::Api</a> getCurrentApi( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849a4767e17c6edfbd827f91763915df4105">RtAudio::UNIX_JACK</a>; };
<a name="l00784"></a>00784   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDeviceCount( <span class="keywordtype">void</span> );
<a name="l00785"></a>00785   <a class="code" href="structRtAudio_1_1DeviceInfo.html" title="The public device information structure for returning queried values.">RtAudio::DeviceInfo</a> getDeviceInfo( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device );
<a name="l00786"></a>00786   <span class="keywordtype">void</span> closeStream( <span class="keywordtype">void</span> );
<a name="l00787"></a>00787   <span class="keywordtype">void</span> startStream( <span class="keywordtype">void</span> );
<a name="l00788"></a>00788   <span class="keywordtype">void</span> stopStream( <span class="keywordtype">void</span> );
<a name="l00789"></a>00789   <span class="keywordtype">void</span> abortStream( <span class="keywordtype">void</span> );
<a name="l00790"></a>00790   <span class="keywordtype">long</span> getStreamLatency( <span class="keywordtype">void</span> );
<a name="l00791"></a>00791 
<a name="l00792"></a>00792   <span class="comment">// This function is intended for internal use only.  It must be</span>
<a name="l00793"></a>00793   <span class="comment">// public because it is called by the internal callback handler,</span>
<a name="l00794"></a>00794   <span class="comment">// which is not a member of RtAudio.  External use of this function</span>
<a name="l00795"></a>00795   <span class="comment">// will most likely produce highly undesireable results!</span>
<a name="l00796"></a>00796   <span class="keywordtype">bool</span> callbackEvent( <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> nframes );
<a name="l00797"></a>00797 
<a name="l00798"></a>00798   <span class="keyword">private</span>:
<a name="l00799"></a>00799 
<a name="l00800"></a>00800   <span class="keywordtype">bool</span> probeDeviceOpen( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device, StreamMode mode, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channels, 
<a name="l00801"></a>00801                         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,
<a name="l00802"></a>00802                         <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferSize,
<a name="l00803"></a>00803                         <a class="code" href="structRtAudio_1_1StreamOptions.html" title="The structure for specifying stream options.">RtAudio::StreamOptions</a> *options );
<a name="l00804"></a>00804 };
<a name="l00805"></a>00805 
<a name="l00806"></a>00806 <span class="preprocessor">#endif</span>
<a name="l00807"></a>00807 <span class="preprocessor"></span>
<a name="l00808"></a>00808 <span class="preprocessor">#if defined(__WINDOWS_ASIO__)</span>
<a name="l00809"></a>00809 <span class="preprocessor"></span>
<a name="l00810"></a>00810 <span class="keyword">class </span>RtApiAsio: <span class="keyword">public</span> RtApi
<a name="l00811"></a>00811 {
<a name="l00812"></a>00812 <span class="keyword">public</span>:
<a name="l00813"></a>00813 
<a name="l00814"></a>00814   RtApiAsio();
<a name="l00815"></a>00815   ~RtApiAsio();
<a name="l00816"></a>00816   <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849" title="Audio API specifier arguments.">RtAudio::Api</a> getCurrentApi( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849a219517d1df90f94d07758481155bd469">RtAudio::WINDOWS_ASIO</a>; };
<a name="l00817"></a>00817   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDeviceCount( <span class="keywordtype">void</span> );
<a name="l00818"></a>00818   <a class="code" href="structRtAudio_1_1DeviceInfo.html" title="The public device information structure for returning queried values.">RtAudio::DeviceInfo</a> getDeviceInfo( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device );
<a name="l00819"></a>00819   <span class="keywordtype">void</span> closeStream( <span class="keywordtype">void</span> );
<a name="l00820"></a>00820   <span class="keywordtype">void</span> startStream( <span class="keywordtype">void</span> );
<a name="l00821"></a>00821   <span class="keywordtype">void</span> stopStream( <span class="keywordtype">void</span> );
<a name="l00822"></a>00822   <span class="keywordtype">void</span> abortStream( <span class="keywordtype">void</span> );
<a name="l00823"></a>00823   <span class="keywordtype">long</span> getStreamLatency( <span class="keywordtype">void</span> );
<a name="l00824"></a>00824 
<a name="l00825"></a>00825   <span class="comment">// This function is intended for internal use only.  It must be</span>
<a name="l00826"></a>00826   <span class="comment">// public because it is called by the internal callback handler,</span>
<a name="l00827"></a>00827   <span class="comment">// which is not a member of RtAudio.  External use of this function</span>
<a name="l00828"></a>00828   <span class="comment">// will most likely produce highly undesireable results!</span>
<a name="l00829"></a>00829   <span class="keywordtype">bool</span> callbackEvent( <span class="keywordtype">long</span> bufferIndex );
<a name="l00830"></a>00830 
<a name="l00831"></a>00831   <span class="keyword">private</span>:
<a name="l00832"></a>00832 
<a name="l00833"></a>00833   std::vector&lt;RtAudio::DeviceInfo&gt; devices_;
<a name="l00834"></a>00834   <span class="keywordtype">void</span> saveDeviceInfo( <span class="keywordtype">void</span> );
<a name="l00835"></a>00835   <span class="keywordtype">bool</span> coInitialized_;
<a name="l00836"></a>00836   <span class="keywordtype">bool</span> probeDeviceOpen( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device, StreamMode mode, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channels, 
<a name="l00837"></a>00837                         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,
<a name="l00838"></a>00838                         <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferSize,
<a name="l00839"></a>00839                         <a class="code" href="structRtAudio_1_1StreamOptions.html" title="The structure for specifying stream options.">RtAudio::StreamOptions</a> *options );
<a name="l00840"></a>00840 };
<a name="l00841"></a>00841 
<a name="l00842"></a>00842 <span class="preprocessor">#endif</span>
<a name="l00843"></a>00843 <span class="preprocessor"></span>
<a name="l00844"></a>00844 <span class="preprocessor">#if defined(__WINDOWS_DS__)</span>
<a name="l00845"></a>00845 <span class="preprocessor"></span>
<a name="l00846"></a>00846 <span class="keyword">class </span>RtApiDs: <span class="keyword">public</span> RtApi
<a name="l00847"></a>00847 {
<a name="l00848"></a>00848 <span class="keyword">public</span>:
<a name="l00849"></a>00849 
<a name="l00850"></a>00850   RtApiDs();
<a name="l00851"></a>00851   ~RtApiDs();
<a name="l00852"></a>00852   <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849" title="Audio API specifier arguments.">RtAudio::Api</a> getCurrentApi( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849a28478830f42c2fd61e6c7ad498901931">RtAudio::WINDOWS_DS</a>; };
<a name="l00853"></a>00853   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDeviceCount( <span class="keywordtype">void</span> );
<a name="l00854"></a>00854   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDefaultOutputDevice( <span class="keywordtype">void</span> );
<a name="l00855"></a>00855   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDefaultInputDevice( <span class="keywordtype">void</span> );
<a name="l00856"></a>00856   <a class="code" href="structRtAudio_1_1DeviceInfo.html" title="The public device information structure for returning queried values.">RtAudio::DeviceInfo</a> getDeviceInfo( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device );
<a name="l00857"></a>00857   <span class="keywordtype">void</span> closeStream( <span class="keywordtype">void</span> );
<a name="l00858"></a>00858   <span class="keywordtype">void</span> startStream( <span class="keywordtype">void</span> );
<a name="l00859"></a>00859   <span class="keywordtype">void</span> stopStream( <span class="keywordtype">void</span> );
<a name="l00860"></a>00860   <span class="keywordtype">void</span> abortStream( <span class="keywordtype">void</span> );
<a name="l00861"></a>00861   <span class="keywordtype">long</span> getStreamLatency( <span class="keywordtype">void</span> );
<a name="l00862"></a>00862 
<a name="l00863"></a>00863   <span class="comment">// This function is intended for internal use only.  It must be</span>
<a name="l00864"></a>00864   <span class="comment">// public because it is called by the internal callback handler,</span>
<a name="l00865"></a>00865   <span class="comment">// which is not a member of RtAudio.  External use of this function</span>
<a name="l00866"></a>00866   <span class="comment">// will most likely produce highly undesireable results!</span>
<a name="l00867"></a>00867   <span class="keywordtype">void</span> callbackEvent( <span class="keywordtype">void</span> );
<a name="l00868"></a>00868 
<a name="l00869"></a>00869   <span class="keyword">private</span>:
<a name="l00870"></a>00870 
<a name="l00871"></a>00871   <span class="keywordtype">bool</span> coInitialized_;
<a name="l00872"></a>00872   <span class="keywordtype">bool</span> buffersRolling;
<a name="l00873"></a>00873   <span class="keywordtype">long</span> duplexPrerollBytes;
<a name="l00874"></a>00874   <span class="keywordtype">bool</span> probeDeviceOpen( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device, StreamMode mode, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channels, 
<a name="l00875"></a>00875                         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,
<a name="l00876"></a>00876                         <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferSize,
<a name="l00877"></a>00877                         <a class="code" href="structRtAudio_1_1StreamOptions.html" title="The structure for specifying stream options.">RtAudio::StreamOptions</a> *options );
<a name="l00878"></a>00878 };
<a name="l00879"></a>00879 
<a name="l00880"></a>00880 <span class="preprocessor">#endif</span>
<a name="l00881"></a>00881 <span class="preprocessor"></span>
<a name="l00882"></a>00882 <span class="preprocessor">#if defined(__LINUX_ALSA__)</span>
<a name="l00883"></a>00883 <span class="preprocessor"></span>
<a name="l00884"></a>00884 <span class="keyword">class </span>RtApiAlsa: <span class="keyword">public</span> RtApi
<a name="l00885"></a>00885 {
<a name="l00886"></a>00886 <span class="keyword">public</span>:
<a name="l00887"></a>00887 
<a name="l00888"></a>00888   RtApiAlsa();
<a name="l00889"></a>00889   ~RtApiAlsa();
<a name="l00890"></a>00890   <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849" title="Audio API specifier arguments.">RtAudio::Api</a> getCurrentApi() { <span class="keywordflow">return</span> <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849aa7a2ba095c2806caa893b6fb8fc3a1a8">RtAudio::LINUX_ALSA</a>; };
<a name="l00891"></a>00891   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDeviceCount( <span class="keywordtype">void</span> );
<a name="l00892"></a>00892   <a class="code" href="structRtAudio_1_1DeviceInfo.html" title="The public device information structure for returning queried values.">RtAudio::DeviceInfo</a> getDeviceInfo( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device );
<a name="l00893"></a>00893   <span class="keywordtype">void</span> closeStream( <span class="keywordtype">void</span> );
<a name="l00894"></a>00894   <span class="keywordtype">void</span> startStream( <span class="keywordtype">void</span> );
<a name="l00895"></a>00895   <span class="keywordtype">void</span> stopStream( <span class="keywordtype">void</span> );
<a name="l00896"></a>00896   <span class="keywordtype">void</span> abortStream( <span class="keywordtype">void</span> );
<a name="l00897"></a>00897 
<a name="l00898"></a>00898   <span class="comment">// This function is intended for internal use only.  It must be</span>
<a name="l00899"></a>00899   <span class="comment">// public because it is called by the internal callback handler,</span>
<a name="l00900"></a>00900   <span class="comment">// which is not a member of RtAudio.  External use of this function</span>
<a name="l00901"></a>00901   <span class="comment">// will most likely produce highly undesireable results!</span>
<a name="l00902"></a>00902   <span class="keywordtype">void</span> callbackEvent( <span class="keywordtype">void</span> );
<a name="l00903"></a>00903 
<a name="l00904"></a>00904   <span class="keyword">private</span>:
<a name="l00905"></a>00905 
<a name="l00906"></a>00906   std::vector&lt;RtAudio::DeviceInfo&gt; devices_;
<a name="l00907"></a>00907   <span class="keywordtype">void</span> saveDeviceInfo( <span class="keywordtype">void</span> );
<a name="l00908"></a>00908   <span class="keywordtype">bool</span> probeDeviceOpen( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device, StreamMode mode, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channels, 
<a name="l00909"></a>00909                         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,
<a name="l00910"></a>00910                         <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferSize,
<a name="l00911"></a>00911                         <a class="code" href="structRtAudio_1_1StreamOptions.html" title="The structure for specifying stream options.">RtAudio::StreamOptions</a> *options );
<a name="l00912"></a>00912 };
<a name="l00913"></a>00913 
<a name="l00914"></a>00914 <span class="preprocessor">#endif</span>
<a name="l00915"></a>00915 <span class="preprocessor"></span>
<a name="l00916"></a>00916 <span class="preprocessor">#if defined(__LINUX_PULSE__)</span>
<a name="l00917"></a>00917 <span class="preprocessor"></span>
<a name="l00918"></a>00918 <span class="keyword">class </span>RtApiPulse: <span class="keyword">public</span> RtApi
<a name="l00919"></a>00919 {
<a name="l00920"></a>00920 <span class="keyword">public</span>:
<a name="l00921"></a>00921   ~RtApiPulse();
<a name="l00922"></a>00922   <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849" title="Audio API specifier arguments.">RtAudio::Api</a> getCurrentApi() { <span class="keywordflow">return</span> <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849adc17dff310e85d303fb326c837c08d77">RtAudio::LINUX_PULSE</a>; };
<a name="l00923"></a>00923   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDeviceCount( <span class="keywordtype">void</span> );
<a name="l00924"></a>00924   <a class="code" href="structRtAudio_1_1DeviceInfo.html" title="The public device information structure for returning queried values.">RtAudio::DeviceInfo</a> getDeviceInfo( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device );
<a name="l00925"></a>00925   <span class="keywordtype">void</span> closeStream( <span class="keywordtype">void</span> );
<a name="l00926"></a>00926   <span class="keywordtype">void</span> startStream( <span class="keywordtype">void</span> );
<a name="l00927"></a>00927   <span class="keywordtype">void</span> stopStream( <span class="keywordtype">void</span> );
<a name="l00928"></a>00928   <span class="keywordtype">void</span> abortStream( <span class="keywordtype">void</span> );
<a name="l00929"></a>00929 
<a name="l00930"></a>00930   <span class="comment">// This function is intended for internal use only.  It must be</span>
<a name="l00931"></a>00931   <span class="comment">// public because it is called by the internal callback handler,</span>
<a name="l00932"></a>00932   <span class="comment">// which is not a member of RtAudio.  External use of this function</span>
<a name="l00933"></a>00933   <span class="comment">// will most likely produce highly undesireable results!</span>
<a name="l00934"></a>00934   <span class="keywordtype">void</span> callbackEvent( <span class="keywordtype">void</span> );
<a name="l00935"></a>00935 
<a name="l00936"></a>00936   <span class="keyword">private</span>:
<a name="l00937"></a>00937 
<a name="l00938"></a>00938   std::vector&lt;RtAudio::DeviceInfo&gt; devices_;
<a name="l00939"></a>00939   <span class="keywordtype">void</span> saveDeviceInfo( <span class="keywordtype">void</span> );
<a name="l00940"></a>00940   <span class="keywordtype">bool</span> probeDeviceOpen( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device, StreamMode mode, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channels,
<a name="l00941"></a>00941                         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,
<a name="l00942"></a>00942                         <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferSize,
<a name="l00943"></a>00943                         <a class="code" href="structRtAudio_1_1StreamOptions.html" title="The structure for specifying stream options.">RtAudio::StreamOptions</a> *options );
<a name="l00944"></a>00944 };
<a name="l00945"></a>00945 
<a name="l00946"></a>00946 <span class="preprocessor">#endif</span>
<a name="l00947"></a>00947 <span class="preprocessor"></span>
<a name="l00948"></a>00948 
<a name="l00949"></a>00949 <span class="preprocessor">#if defined(__LINUX_OSS__)</span>
<a name="l00950"></a>00950 <span class="preprocessor"></span>
<a name="l00951"></a>00951 <span class="keyword">class </span>RtApiOss: <span class="keyword">public</span> RtApi
<a name="l00952"></a>00952 {
<a name="l00953"></a>00953 <span class="keyword">public</span>:
<a name="l00954"></a>00954 
<a name="l00955"></a>00955   RtApiOss();
<a name="l00956"></a>00956   ~RtApiOss();
<a name="l00957"></a>00957   <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849" title="Audio API specifier arguments.">RtAudio::Api</a> getCurrentApi() { <span class="keywordflow">return</span> <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849a39c84615e61de75e6a4e865596d62c82">RtAudio::LINUX_OSS</a>; };
<a name="l00958"></a>00958   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDeviceCount( <span class="keywordtype">void</span> );
<a name="l00959"></a>00959   <a class="code" href="structRtAudio_1_1DeviceInfo.html" title="The public device information structure for returning queried values.">RtAudio::DeviceInfo</a> getDeviceInfo( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device );
<a name="l00960"></a>00960   <span class="keywordtype">void</span> closeStream( <span class="keywordtype">void</span> );
<a name="l00961"></a>00961   <span class="keywordtype">void</span> startStream( <span class="keywordtype">void</span> );
<a name="l00962"></a>00962   <span class="keywordtype">void</span> stopStream( <span class="keywordtype">void</span> );
<a name="l00963"></a>00963   <span class="keywordtype">void</span> abortStream( <span class="keywordtype">void</span> );
<a name="l00964"></a>00964 
<a name="l00965"></a>00965   <span class="comment">// This function is intended for internal use only.  It must be</span>
<a name="l00966"></a>00966   <span class="comment">// public because it is called by the internal callback handler,</span>
<a name="l00967"></a>00967   <span class="comment">// which is not a member of RtAudio.  External use of this function</span>
<a name="l00968"></a>00968   <span class="comment">// will most likely produce highly undesireable results!</span>
<a name="l00969"></a>00969   <span class="keywordtype">void</span> callbackEvent( <span class="keywordtype">void</span> );
<a name="l00970"></a>00970 
<a name="l00971"></a>00971   <span class="keyword">private</span>:
<a name="l00972"></a>00972 
<a name="l00973"></a>00973   <span class="keywordtype">bool</span> probeDeviceOpen( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device, StreamMode mode, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channels, 
<a name="l00974"></a>00974                         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,
<a name="l00975"></a>00975                         <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferSize,
<a name="l00976"></a>00976                         <a class="code" href="structRtAudio_1_1StreamOptions.html" title="The structure for specifying stream options.">RtAudio::StreamOptions</a> *options );
<a name="l00977"></a>00977 };
<a name="l00978"></a>00978 
<a name="l00979"></a>00979 <span class="preprocessor">#endif</span>
<a name="l00980"></a>00980 <span class="preprocessor"></span>
<a name="l00981"></a>00981 <span class="preprocessor">#if defined(__RTAUDIO_DUMMY__)</span>
<a name="l00982"></a>00982 <span class="preprocessor"></span>
<a name="l00983"></a>00983 <span class="keyword">class </span>RtApiDummy: <span class="keyword">public</span> RtApi
<a name="l00984"></a>00984 {
<a name="l00985"></a>00985 <span class="keyword">public</span>:
<a name="l00986"></a>00986 
<a name="l00987"></a>00987   RtApiDummy() { errorText_ = <span class="stringliteral">&quot;RtApiDummy: This class provides no functionality.&quot;</span>; error( <a class="code" href="classRtError.html#ab04667aae01bffc354a9ac6bda6903aca3a1603c24a56cbdaf5f8ae4ddcb86398">RtError::WARNING</a> ); };
<a name="l00988"></a>00988   <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849" title="Audio API specifier arguments.">RtAudio::Api</a> getCurrentApi( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> <a class="code" href="classRtAudio.html#ac9b6f625da88249d08a8409a9db0d849ab06b8fd88bf18c9a2b8271f6961ae2d1">RtAudio::RTAUDIO_DUMMY</a>; };
<a name="l00989"></a>00989   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDeviceCount( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> 0; };
<a name="l00990"></a>00990   <a class="code" href="structRtAudio_1_1DeviceInfo.html" title="The public device information structure for returning queried values.">RtAudio::DeviceInfo</a> getDeviceInfo( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device ) { <a class="code" href="structRtAudio_1_1DeviceInfo.html" title="The public device information structure for returning queried values.">RtAudio::DeviceInfo</a> info; <span class="keywordflow">return</span> info; };
<a name="l00991"></a>00991   <span class="keywordtype">void</span> closeStream( <span class="keywordtype">void</span> ) {};
<a name="l00992"></a>00992   <span class="keywordtype">void</span> startStream( <span class="keywordtype">void</span> ) {};
<a name="l00993"></a>00993   <span class="keywordtype">void</span> stopStream( <span class="keywordtype">void</span> ) {};
<a name="l00994"></a>00994   <span class="keywordtype">void</span> abortStream( <span class="keywordtype">void</span> ) {};
<a name="l00995"></a>00995 
<a name="l00996"></a>00996   <span class="keyword">private</span>:
<a name="l00997"></a>00997 
<a name="l00998"></a>00998   <span class="keywordtype">bool</span> probeDeviceOpen( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device, StreamMode mode, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channels, 
<a name="l00999"></a>00999                         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,
<a name="l01000"></a>01000                         <a class="code" href="RtAudio_8h.html#aafca92882d25915560018873221e44b8" title="RtAudio data format type.">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferSize,
<a name="l01001"></a>01001                         <a class="code" href="structRtAudio_1_1StreamOptions.html" title="The structure for specifying stream options.">RtAudio::StreamOptions</a> *options ) { <span class="keywordflow">return</span> <span class="keyword">false</span>; };
<a name="l01002"></a>01002 };
<a name="l01003"></a>01003 
<a name="l01004"></a>01004 <span class="preprocessor">#endif</span>
<a name="l01005"></a>01005 <span class="preprocessor"></span>
<a name="l01006"></a>01006 <span class="preprocessor">#endif</span>
<a name="l01007"></a>01007 <span class="preprocessor"></span>
<a name="l01008"></a>01008 <span class="comment">// Indentation settings for Vim and Emacs</span>
<a name="l01009"></a>01009 <span class="comment">//</span>
<a name="l01010"></a>01010 <span class="comment">// Local Variables:</span>
<a name="l01011"></a>01011 <span class="comment">// c-basic-offset: 2</span>
<a name="l01012"></a>01012 <span class="comment">// indent-tabs-mode: nil</span>
<a name="l01013"></a>01013 <span class="comment">// End:</span>
<a name="l01014"></a>01014 <span class="comment">//</span>
<a name="l01015"></a>01015 <span class="comment">// vim: et sts=2 sw=2</span>
</pre></div></div>
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