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  1. <HTML>

  2. <HEAD>

  3. <TITLE>The RtAudio Home Page</TITLE>

  4. <LINK HREF="doxygen.css" REL="stylesheet" TYPE="text/css">

  5. <LINK REL="SHORTCUT ICON" HREF="http://www.music.mcgill.ca/~gary/favicon.ico">

  6. </HEAD>

  7. <BODY BGCOLOR="#FFFFFF">

  8. <CENTER>

  9. <a class="qindex" href="index.html">Home</a> &nbsp; <a class="qindex" href="annotated.html">Class/Enum List</a> &nbsp; <a class="qindex" href="files.html">File List</a> &nbsp; <a class="qindex" href="functions.html">Compound Members</a> &nbsp; </CENTER>

  10. <HR>

  11. <!-- Generated by Doxygen 1.4.4 -->

  12. <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>

  13. <a name="l00039"></a>00039 <span class="comment">/************************************************************************/</span>

  14. <a name="l00040"></a>00040 

  15. <a name="l00045"></a>00045 <span class="comment">// RtAudio: Version 4.0.4</span>

  16. <a name="l00046"></a>00046 

  17. <a name="l00047"></a>00047 <span class="preprocessor">#ifndef __RTAUDIO_H</span>

  18. <a name="l00048"></a>00048 <span class="preprocessor"></span><span class="preprocessor">#define __RTAUDIO_H</span>

  19. <a name="l00049"></a>00049 <span class="preprocessor"></span>

  20. <a name="l00050"></a>00050 <span class="preprocessor">#include &lt;string&gt;</span>

  21. <a name="l00051"></a>00051 <span class="preprocessor">#include &lt;vector&gt;</span>

  22. <a name="l00052"></a>00052 <span class="preprocessor">#include "RtError.h"</span>

  23. <a name="l00053"></a>00053 

  24. <a name="l00070"></a><a class="code" href="RtAudio_8h.html#a1">00070</a> <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a>;

  25. <a name="l00071"></a>00071 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> RTAUDIO_SINT8 = 0x1;    <span class="comment">// 8-bit signed integer.</span>

  26. <a name="l00072"></a>00072 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> RTAUDIO_SINT16 = 0x2;   <span class="comment">// 16-bit signed integer.</span>

  27. <a name="l00073"></a>00073 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> RTAUDIO_SINT24 = 0x4;   <span class="comment">// Lower 3 bytes of 32-bit signed integer.</span>

  28. <a name="l00074"></a>00074 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> RTAUDIO_SINT32 = 0x8;   <span class="comment">// 32-bit signed integer.</span>

  29. <a name="l00075"></a>00075 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> RTAUDIO_FLOAT32 = 0x10; <span class="comment">// Normalized between plus/minus 1.0.</span>

  30. <a name="l00076"></a>00076 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> RTAUDIO_FLOAT64 = 0x20; <span class="comment">// Normalized between plus/minus 1.0.</span>

  31. <a name="l00077"></a>00077 

  32. <a name="l00112"></a><a class="code" href="RtAudio_8h.html#a8">00112</a> <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="RtAudio_8h.html#a8">RtAudioStreamFlags</a>;

  33. <a name="l00113"></a>00113 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a8">RtAudioStreamFlags</a> RTAUDIO_NONINTERLEAVED = 0x1;    <span class="comment">// Use non-interleaved buffers (default = interleaved).</span>

  34. <a name="l00114"></a>00114 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a8">RtAudioStreamFlags</a> RTAUDIO_MINIMIZE_LATENCY = 0x2;  <span class="comment">// Attempt to set stream parameters for lowest possible latency.</span>

  35. <a name="l00115"></a>00115 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a8">RtAudioStreamFlags</a> RTAUDIO_HOG_DEVICE = 0x4;        <span class="comment">// Attempt grab device and prevent use by others.</span>

  36. <a name="l00116"></a>00116 

  37. <a name="l00128"></a><a class="code" href="RtAudio_8h.html#a12">00128</a> <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="RtAudio_8h.html#a12">RtAudioStreamStatus</a>;

  38. <a name="l00129"></a>00129 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a12">RtAudioStreamStatus</a> RTAUDIO_INPUT_OVERFLOW = 0x1;    <span class="comment">// Input data was discarded because of an overflow condition at the driver.</span>

  39. <a name="l00130"></a>00130 <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="RtAudio_8h.html#a12">RtAudioStreamStatus</a> RTAUDIO_OUTPUT_UNDERFLOW = 0x2;  <span class="comment">// The output buffer ran low, likely causing a gap in the output sound.</span>

  40. <a name="l00131"></a>00131 

  41. <a name="l00133"></a>00133 

  42. <a name="l00171"></a><a class="code" href="RtAudio_8h.html#a15">00171</a> <span class="keyword">typedef</span> int (*<a class="code" href="RtAudio_8h.html#a15">RtAudioCallback</a>)( <span class="keywordtype">void</span> *outputBuffer, <span class="keywordtype">void</span> *inputBuffer,

  43. <a name="l00172"></a>00172                                 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nFrames,

  44. <a name="l00173"></a>00173                                 <span class="keywordtype">double</span> streamTime,

  45. <a name="l00174"></a>00174                                 <a class="code" href="RtAudio_8h.html#a12">RtAudioStreamStatus</a> status,

  46. <a name="l00175"></a>00175                                 <span class="keywordtype">void</span> *userData );

  47. <a name="l00176"></a>00176 

  48. <a name="l00177"></a>00177 

  49. <a name="l00178"></a>00178 <span class="comment">// **************************************************************** //</span>

  50. <a name="l00179"></a>00179 <span class="comment">//</span>

  51. <a name="l00180"></a>00180 <span class="comment">// RtAudio class declaration.</span>

  52. <a name="l00181"></a>00181 <span class="comment">//</span>

  53. <a name="l00182"></a>00182 <span class="comment">// RtAudio is a "controller" used to select an available audio i/o</span>

  54. <a name="l00183"></a>00183 <span class="comment">// interface.  It presents a common API for the user to call but all</span>

  55. <a name="l00184"></a>00184 <span class="comment">// functionality is implemented by the class RtApi and its</span>

  56. <a name="l00185"></a>00185 <span class="comment">// subclasses.  RtAudio creates an instance of an RtApi subclass</span>

  57. <a name="l00186"></a>00186 <span class="comment">// based on the user's API choice.  If no choice is made, RtAudio</span>

  58. <a name="l00187"></a>00187 <span class="comment">// attempts to make a "logical" API selection.</span>

  59. <a name="l00188"></a>00188 <span class="comment">//</span>

  60. <a name="l00189"></a>00189 <span class="comment">// **************************************************************** //</span>

  61. <a name="l00190"></a>00190 

  62. <a name="l00191"></a>00191 <span class="keyword">class </span>RtApi;

  63. <a name="l00192"></a>00192 

  64. <a name="l00193"></a><a class="code" href="classRtAudio.html">00193</a> <span class="keyword">class </span><a class="code" href="classRtAudio.html">RtAudio</a>

  65. <a name="l00194"></a>00194 {

  66. <a name="l00195"></a>00195  <span class="keyword">public</span>:

  67. <a name="l00196"></a>00196 

  68. <a name="l00198"></a><a class="code" href="classRtAudio.html#w8">00198</a>   <span class="keyword">enum</span> <a class="code" href="classRtAudio.html#w8">Api</a> {

  69. <a name="l00199"></a>00199     <a class="code" href="classRtAudio.html#w8w0">UNSPECIFIED</a>,    

  70. <a name="l00200"></a>00200     <a class="code" href="classRtAudio.html#w8w1">LINUX_ALSA</a>,     

  71. <a name="l00201"></a>00201     <a class="code" href="classRtAudio.html#w8w2">LINUX_OSS</a>,      

  72. <a name="l00202"></a>00202     <a class="code" href="classRtAudio.html#w8w3">UNIX_JACK</a>,      

  73. <a name="l00203"></a>00203     <a class="code" href="classRtAudio.html#w8w4">MACOSX_CORE</a>,    

  74. <a name="l00204"></a>00204     <a class="code" href="classRtAudio.html#w8w5">WINDOWS_ASIO</a>,   

  75. <a name="l00205"></a>00205     <a class="code" href="classRtAudio.html#w8w6">WINDOWS_DS</a>,     

  76. <a name="l00206"></a><a class="code" href="classRtAudio.html#w8w7">00206</a>     <a class="code" href="classRtAudio.html#w8w7">RTAUDIO_DUMMY</a>   

  77. <a name="l00207"></a>00207   };

  78. <a name="l00208"></a>00208 

  79. <a name="l00210"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html">00210</a>   <span class="keyword">struct </span><a class="code" href="structRtAudio_1_1DeviceInfo.html">DeviceInfo</a> {

  80. <a name="l00211"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#o0">00211</a>     <span class="keywordtype">bool</span> <a class="code" href="structRtAudio_1_1DeviceInfo.html#o0">probed</a>;                  

  81. <a name="l00212"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#o1">00212</a>     std::string <a class="code" href="structRtAudio_1_1DeviceInfo.html#o1">name</a>;             

  82. <a name="l00213"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#o2">00213</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structRtAudio_1_1DeviceInfo.html#o2">outputChannels</a>;  

  83. <a name="l00214"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#o3">00214</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structRtAudio_1_1DeviceInfo.html#o3">inputChannels</a>;   

  84. <a name="l00215"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#o4">00215</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structRtAudio_1_1DeviceInfo.html#o4">duplexChannels</a>;  

  85. <a name="l00216"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#o5">00216</a>     <span class="keywordtype">bool</span> <a class="code" href="structRtAudio_1_1DeviceInfo.html#o5">isDefaultOutput</a>;         

  86. <a name="l00217"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#o6">00217</a>     <span class="keywordtype">bool</span> <a class="code" href="structRtAudio_1_1DeviceInfo.html#o6">isDefaultInput</a>;          

  87. <a name="l00218"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#o7">00218</a>     std::vector&lt;unsigned int&gt; <a class="code" href="structRtAudio_1_1DeviceInfo.html#o7">sampleRates</a>; 

  88. <a name="l00219"></a><a class="code" href="structRtAudio_1_1DeviceInfo.html#o8">00219</a>     <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> <a class="code" href="structRtAudio_1_1DeviceInfo.html#o8">nativeFormats</a>;  

  89. <a name="l00221"></a>00221     <span class="comment">// Default constructor.</span>

  90. <a name="l00222"></a>00222     <a class="code" href="structRtAudio_1_1DeviceInfo.html">DeviceInfo</a>()

  91. <a name="l00223"></a>00223       :<a class="code" href="structRtAudio_1_1DeviceInfo.html#o0">probed</a>(false), <a class="code" href="structRtAudio_1_1DeviceInfo.html#o2">outputChannels</a>(0), <a class="code" href="structRtAudio_1_1DeviceInfo.html#o3">inputChannels</a>(0), <a class="code" href="structRtAudio_1_1DeviceInfo.html#o4">duplexChannels</a>(0),

  92. <a name="l00224"></a>00224        <a class="code" href="structRtAudio_1_1DeviceInfo.html#o5">isDefaultOutput</a>(false), <a class="code" href="structRtAudio_1_1DeviceInfo.html#o6">isDefaultInput</a>(false), <a class="code" href="structRtAudio_1_1DeviceInfo.html#o8">nativeFormats</a>(0) {}

  93. <a name="l00225"></a>00225   };

  94. <a name="l00226"></a>00226 

  95. <a name="l00228"></a><a class="code" href="structRtAudio_1_1StreamParameters.html">00228</a>   <span class="keyword">struct </span><a class="code" href="structRtAudio_1_1StreamParameters.html">StreamParameters</a> {

  96. <a name="l00229"></a><a class="code" href="structRtAudio_1_1StreamParameters.html#o0">00229</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structRtAudio_1_1StreamParameters.html#o0">deviceId</a>;     

  97. <a name="l00230"></a><a class="code" href="structRtAudio_1_1StreamParameters.html#o1">00230</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structRtAudio_1_1StreamParameters.html#o1">nChannels</a>;    

  98. <a name="l00231"></a><a class="code" href="structRtAudio_1_1StreamParameters.html#o2">00231</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structRtAudio_1_1StreamParameters.html#o2">firstChannel</a>; 

  99. <a name="l00233"></a>00233     <span class="comment">// Default constructor.</span>

  100. <a name="l00234"></a>00234     <a class="code" href="structRtAudio_1_1StreamParameters.html">StreamParameters</a>()

  101. <a name="l00235"></a>00235       : <a class="code" href="structRtAudio_1_1StreamParameters.html#o0">deviceId</a>(0), <a class="code" href="structRtAudio_1_1StreamParameters.html#o1">nChannels</a>(0), <a class="code" href="structRtAudio_1_1StreamParameters.html#o2">firstChannel</a>(0) {}

  102. <a name="l00236"></a>00236   };

  103. <a name="l00237"></a>00237 

  104. <a name="l00239"></a>00239 

  105. <a name="l00284"></a><a class="code" href="structRtAudio_1_1StreamOptions.html">00284</a>   <span class="keyword">struct </span><a class="code" href="structRtAudio_1_1StreamOptions.html">StreamOptions</a> {

  106. <a name="l00285"></a><a class="code" href="structRtAudio_1_1StreamOptions.html#o0">00285</a>     <a class="code" href="RtAudio_8h.html#a8">RtAudioStreamFlags</a> <a class="code" href="structRtAudio_1_1StreamOptions.html#o0">flags</a>;      

  107. <a name="l00286"></a><a class="code" href="structRtAudio_1_1StreamOptions.html#o1">00286</a>     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structRtAudio_1_1StreamOptions.html#o1">numberOfBuffers</a>;  

  108. <a name="l00287"></a><a class="code" href="structRtAudio_1_1StreamOptions.html#o2">00287</a>     std::string <a class="code" href="structRtAudio_1_1StreamOptions.html#o2">streamName</a>;        

  109. <a name="l00289"></a>00289     <span class="comment">// Default constructor.</span>

  110. <a name="l00290"></a>00290     <a class="code" href="structRtAudio_1_1StreamOptions.html">StreamOptions</a>()

  111. <a name="l00291"></a>00291       : <a class="code" href="structRtAudio_1_1StreamOptions.html#o0">flags</a>(0), <a class="code" href="structRtAudio_1_1StreamOptions.html#o1">numberOfBuffers</a>(0) {}

  112. <a name="l00292"></a>00292   };

  113. <a name="l00293"></a>00293 

  114. <a name="l00295"></a>00295 

  115. <a name="l00300"></a>00300   <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#e0">getCompiledApi</a>( std::vector&lt;RtAudio::Api&gt; &amp;apis ) <span class="keywordflow">throw</span>();

  116. <a name="l00301"></a>00301 

  117. <a name="l00303"></a>00303 

  118. <a name="l00311"></a>00311   <a class="code" href="classRtAudio.html#a0">RtAudio</a>( <a class="code" href="classRtAudio.html#w8">RtAudio::Api</a> api=<a class="code" href="classRtAudio.html#w8w0">UNSPECIFIED</a> ) throw();

  119. <a name="l00312"></a>00312 

  120. <a name="l00314"></a>00314 

  121. <a name="l00318"></a>00318   ~<a class="code" href="classRtAudio.html">RtAudio</a>() throw();

  122. <a name="l00319"></a>00319 

  123. <a name="l00321"></a>00321   <a class="code" href="classRtAudio.html">RtAudio</a>::<a class="code" href="classRtAudio.html#w8">Api</a> <a class="code" href="classRtAudio.html#a2">getCurrentApi</a>( <span class="keywordtype">void</span> ) throw();

  124. <a name="l00322"></a>00322 

  125. <a name="l00324"></a>00324 

  126. <a name="l00329"></a>00329   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a3">getDeviceCount</a>( <span class="keywordtype">void</span> ) throw();

  127. <a name="l00330"></a>00330 

  128. <a name="l00332"></a>00332 

  129. <a name="l00342"></a>00342   <a class="code" href="classRtAudio.html">RtAudio</a>::DeviceInfo <a class="code" href="classRtAudio.html#a4">getDeviceInfo</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device );

  130. <a name="l00343"></a>00343 

  131. <a name="l00345"></a>00345 

  132. <a name="l00352"></a>00352   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a5">getDefaultOutputDevice</a>( <span class="keywordtype">void</span> ) throw();

  133. <a name="l00353"></a>00353 

  134. <a name="l00355"></a>00355 

  135. <a name="l00362"></a>00362   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a6">getDefaultInputDevice</a>( <span class="keywordtype">void</span> ) throw();

  136. <a name="l00363"></a>00363 

  137. <a name="l00365"></a>00365 

  138. <a name="l00402"></a>00402   <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a7">openStream</a>( <a class="code" href="classRtAudio.html">RtAudio</a>::StreamParameters *outputParameters,

  139. <a name="l00403"></a>00403                    <a class="code" href="classRtAudio.html">RtAudio</a>::StreamParameters *inputParameters,

  140. <a name="l00404"></a>00404                    <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,

  141. <a name="l00405"></a>00405                    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferFrames, <a class="code" href="RtAudio_8h.html#a15">RtAudioCallback</a> callback,

  142. <a name="l00406"></a>00406                    <span class="keywordtype">void</span> *userData = NULL, <a class="code" href="classRtAudio.html">RtAudio</a>::StreamOptions *options = NULL );

  143. <a name="l00407"></a>00407 

  144. <a name="l00409"></a>00409 

  145. <a name="l00413"></a>00413   <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a8">closeStream</a>( <span class="keywordtype">void</span> ) throw();

  146. <a name="l00414"></a>00414 

  147. <a name="l00416"></a>00416 

  148. <a name="l00422"></a>00422   <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a9">startStream</a>( <span class="keywordtype">void</span> );

  149. <a name="l00423"></a>00423 

  150. <a name="l00425"></a>00425 

  151. <a name="l00431"></a>00431   <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a10">stopStream</a>( <span class="keywordtype">void</span> );

  152. <a name="l00432"></a>00432 

  153. <a name="l00434"></a>00434 

  154. <a name="l00440"></a>00440   <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a11">abortStream</a>( <span class="keywordtype">void</span> );

  155. <a name="l00441"></a>00441 

  156. <a name="l00443"></a>00443   <span class="keywordtype">bool</span> <a class="code" href="classRtAudio.html#a12">isStreamOpen</a>( <span class="keywordtype">void</span> ) throw();

  157. <a name="l00444"></a>00444 

  158. <a name="l00446"></a>00446   <span class="keywordtype">bool</span> <a class="code" href="classRtAudio.html#a13">isStreamRunning</a>( <span class="keywordtype">void</span> ) throw();

  159. <a name="l00447"></a>00447 

  160. <a name="l00449"></a>00449 

  161. <a name="l00452"></a>00452   <span class="keywordtype">double</span> <a class="code" href="classRtAudio.html#a14">getStreamTime</a>( <span class="keywordtype">void</span> );

  162. <a name="l00453"></a>00453 

  163. <a name="l00455"></a>00455 

  164. <a name="l00463"></a>00463   <span class="keywordtype">long</span> <a class="code" href="classRtAudio.html#a15">getStreamLatency</a>( <span class="keywordtype">void</span> );

  165. <a name="l00464"></a>00464 

  166. <a name="l00466"></a>00466   <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a16">showWarnings</a>( <span class="keywordtype">bool</span> value = true ) throw();

  167. <a name="l00467"></a>00467 

  168. <a name="l00468"></a>00468  protected:

  169. <a name="l00469"></a>00469 

  170. <a name="l00470"></a>00470   <span class="keywordtype">void</span> openRtApi( <a class="code" href="classRtAudio.html">RtAudio</a>::<a class="code" href="classRtAudio.html#w8">Api</a> api );

  171. <a name="l00471"></a>00471   RtApi *rtapi_;

  172. <a name="l00472"></a>00472 };

  173. <a name="l00473"></a>00473 

  174. <a name="l00474"></a>00474 <span class="comment">// Operating system dependent thread functionality.</span>

  175. <a name="l00475"></a>00475 #if defined(__WINDOWS_DS__) || defined(__WINDOWS_ASIO__)

  176. <a name="l00476"></a>00476   #include &lt;windows.h&gt;

  177. <a name="l00477"></a>00477   #include &lt;process.h&gt;

  178. <a name="l00478"></a>00478 

  179. <a name="l00479"></a>00479   typedef <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> ThreadHandle;

  180. <a name="l00480"></a>00480   typedef CRITICAL_SECTION StreamMutex;

  181. <a name="l00481"></a>00481 

  182. <a name="l00482"></a>00482 #elif defined(__LINUX_ALSA__) || defined(__UNIX_JACK__) || defined(__LINUX_OSS__) || defined(__MACOSX_CORE__)

  183. <a name="l00483"></a>00483   <span class="comment">// Using pthread library for various flavors of unix.</span>

  184. <a name="l00484"></a>00484   #include &lt;pthread.h&gt;

  185. <a name="l00485"></a>00485 

  186. <a name="l00486"></a>00486   typedef pthread_t ThreadHandle;

  187. <a name="l00487"></a>00487   typedef pthread_mutex_t StreamMutex;

  188. <a name="l00488"></a>00488 

  189. <a name="l00489"></a>00489 #else <span class="comment">// Setup for "dummy" behavior</span>

  190. <a name="l00490"></a>00490 

  191. <a name="l00491"></a>00491   #define __RTAUDIO_DUMMY__

  192. <a name="l00492"></a>00492   typedef <span class="keywordtype">int</span> ThreadHandle;

  193. <a name="l00493"></a>00493   typedef <span class="keywordtype">int</span> StreamMutex;

  194. <a name="l00494"></a>00494 

  195. <a name="l00495"></a>00495 #endif

  196. <a name="l00496"></a>00496 

  197. <a name="l00497"></a>00497 <span class="comment">// This global structure type is used to pass callback information</span>

  198. <a name="l00498"></a>00498 <span class="comment">// between the private RtAudio stream structure and global callback</span>

  199. <a name="l00499"></a>00499 <span class="comment">// handling functions.</span>

  200. <a name="l00500"></a>00500 struct CallbackInfo {

  201. <a name="l00501"></a>00501   <span class="keywordtype">void</span> *object;    <span class="comment">// Used as a "this" pointer.</span>

  202. <a name="l00502"></a>00502   ThreadHandle thread;

  203. <a name="l00503"></a>00503   <span class="keywordtype">void</span> *callback;

  204. <a name="l00504"></a>00504   <span class="keywordtype">void</span> *userData;

  205. <a name="l00505"></a>00505   <span class="keywordtype">void</span> *apiInfo;   <span class="comment">// void pointer for API specific callback information</span>

  206. <a name="l00506"></a>00506   <span class="keywordtype">bool</span> isRunning;

  207. <a name="l00507"></a>00507 

  208. <a name="l00508"></a>00508   <span class="comment">// Default constructor.</span>

  209. <a name="l00509"></a>00509   CallbackInfo()

  210. <a name="l00510"></a>00510     :object(0), callback(0), userData(0), apiInfo(0), isRunning(false) {}

  211. <a name="l00511"></a>00511 };

  212. <a name="l00512"></a>00512 

  213. <a name="l00513"></a>00513 <span class="comment">// **************************************************************** //</span>

  214. <a name="l00514"></a>00514 <span class="comment">//</span>

  215. <a name="l00515"></a>00515 <span class="comment">// RtApi class declaration.</span>

  216. <a name="l00516"></a>00516 <span class="comment">//</span>

  217. <a name="l00517"></a>00517 <span class="comment">// Subclasses of RtApi contain all API- and OS-specific code necessary</span>

  218. <a name="l00518"></a>00518 <span class="comment">// to fully implement the RtAudio API.</span>

  219. <a name="l00519"></a>00519 <span class="comment">//</span>

  220. <a name="l00520"></a>00520 <span class="comment">// Note that RtApi is an abstract base class and cannot be</span>

  221. <a name="l00521"></a>00521 <span class="comment">// explicitly instantiated.  The class RtAudio will create an</span>

  222. <a name="l00522"></a>00522 <span class="comment">// instance of an RtApi subclass (RtApiOss, RtApiAlsa,</span>

  223. <a name="l00523"></a>00523 <span class="comment">// RtApiJack, RtApiCore, RtApiAl, RtApiDs, or RtApiAsio).</span>

  224. <a name="l00524"></a>00524 <span class="comment">//</span>

  225. <a name="l00525"></a>00525 <span class="comment">// **************************************************************** //</span>

  226. <a name="l00526"></a>00526 

  227. <a name="l00527"></a>00527 <span class="preprocessor">#if defined( HAVE_GETTIMEOFDAY )</span>

  228. <a name="l00528"></a>00528 <span class="preprocessor"></span><span class="preprocessor">  #include &lt;sys/time.h&gt;</span>

  229. <a name="l00529"></a>00529 <span class="preprocessor">#endif</span>

  230. <a name="l00530"></a>00530 <span class="preprocessor"></span>

  231. <a name="l00531"></a>00531 <span class="preprocessor">#include &lt;sstream&gt;</span>

  232. <a name="l00532"></a>00532 

  233. <a name="l00533"></a>00533 <span class="keyword">class </span>RtApi

  234. <a name="l00534"></a>00534 {

  235. <a name="l00535"></a>00535 <span class="keyword">public</span>:

  236. <a name="l00536"></a>00536 

  237. <a name="l00537"></a>00537   RtApi();

  238. <a name="l00538"></a>00538   <span class="keyword">virtual</span> ~RtApi();

  239. <a name="l00539"></a>00539   <span class="keyword">virtual</span> <a class="code" href="classRtAudio.html#w8">RtAudio::Api</a> <a class="code" href="classRtAudio.html#a2">getCurrentApi</a>( <span class="keywordtype">void</span> ) = 0;

  240. <a name="l00540"></a>00540   <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a3">getDeviceCount</a>( <span class="keywordtype">void</span> ) = 0;

  241. <a name="l00541"></a>00541   <span class="keyword">virtual</span> <a class="code" href="structRtAudio_1_1DeviceInfo.html">RtAudio::DeviceInfo</a> <a class="code" href="classRtAudio.html#a4">getDeviceInfo</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device ) = 0;

  242. <a name="l00542"></a>00542   <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a6">getDefaultInputDevice</a>( <span class="keywordtype">void</span> );

  243. <a name="l00543"></a>00543   <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a5">getDefaultOutputDevice</a>( <span class="keywordtype">void</span> );

  244. <a name="l00544"></a>00544   <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a7">openStream</a>( <a class="code" href="structRtAudio_1_1StreamParameters.html">RtAudio::StreamParameters</a> *outputParameters,

  245. <a name="l00545"></a>00545                    <a class="code" href="structRtAudio_1_1StreamParameters.html">RtAudio::StreamParameters</a> *inputParameters,

  246. <a name="l00546"></a>00546                    <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,

  247. <a name="l00547"></a>00547                    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferFrames, <a class="code" href="RtAudio_8h.html#a15">RtAudioCallback</a> callback,

  248. <a name="l00548"></a>00548                    <span class="keywordtype">void</span> *userData, <a class="code" href="structRtAudio_1_1StreamOptions.html">RtAudio::StreamOptions</a> *options );

  249. <a name="l00549"></a>00549   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a8">closeStream</a>( <span class="keywordtype">void</span> );

  250. <a name="l00550"></a>00550   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a9">startStream</a>( <span class="keywordtype">void</span> ) = 0;

  251. <a name="l00551"></a>00551   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a10">stopStream</a>( <span class="keywordtype">void</span> ) = 0;

  252. <a name="l00552"></a>00552   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a11">abortStream</a>( <span class="keywordtype">void</span> ) = 0;

  253. <a name="l00553"></a>00553   <span class="keywordtype">long</span> <a class="code" href="classRtAudio.html#a15">getStreamLatency</a>( <span class="keywordtype">void</span> );

  254. <a name="l00554"></a>00554   <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="classRtAudio.html#a14">getStreamTime</a>( <span class="keywordtype">void</span> );

  255. <a name="l00555"></a>00555   <span class="keywordtype">bool</span> <a class="code" href="classRtAudio.html#a12">isStreamOpen</a>( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> stream_.state != STREAM_CLOSED; };

  256. <a name="l00556"></a>00556   <span class="keywordtype">bool</span> <a class="code" href="classRtAudio.html#a13">isStreamRunning</a>( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> stream_.state == STREAM_RUNNING; };

  257. <a name="l00557"></a>00557   <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a16">showWarnings</a>( <span class="keywordtype">bool</span> value ) { showWarnings_ = value; };

  258. <a name="l00558"></a>00558 

  259. <a name="l00559"></a>00559 

  260. <a name="l00560"></a>00560 <span class="keyword">protected</span>:

  261. <a name="l00561"></a>00561 

  262. <a name="l00562"></a>00562   <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> MAX_SAMPLE_RATES;

  263. <a name="l00563"></a>00563   <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> SAMPLE_RATES[];

  264. <a name="l00564"></a>00564 

  265. <a name="l00565"></a>00565   <span class="keyword">enum</span> { FAILURE, SUCCESS };

  266. <a name="l00566"></a>00566 

  267. <a name="l00567"></a>00567   <span class="keyword">enum</span> StreamState {

  268. <a name="l00568"></a>00568     STREAM_STOPPED,

  269. <a name="l00569"></a>00569     STREAM_RUNNING,

  270. <a name="l00570"></a>00570     STREAM_CLOSED = -50

  271. <a name="l00571"></a>00571   };

  272. <a name="l00572"></a>00572 

  273. <a name="l00573"></a>00573   <span class="keyword">enum</span> StreamMode {

  274. <a name="l00574"></a>00574     OUTPUT,

  275. <a name="l00575"></a>00575     INPUT,

  276. <a name="l00576"></a>00576     DUPLEX,

  277. <a name="l00577"></a>00577     UNINITIALIZED = -75

  278. <a name="l00578"></a>00578   };

  279. <a name="l00579"></a>00579 

  280. <a name="l00580"></a>00580   <span class="comment">// A protected structure used for buffer conversion.</span>

  281. <a name="l00581"></a>00581   <span class="keyword">struct </span>ConvertInfo {

  282. <a name="l00582"></a>00582     <span class="keywordtype">int</span> channels;

  283. <a name="l00583"></a>00583     <span class="keywordtype">int</span> inJump, outJump;

  284. <a name="l00584"></a>00584     <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> inFormat, outFormat;

  285. <a name="l00585"></a>00585     std::vector&lt;int&gt; inOffset;

  286. <a name="l00586"></a>00586     std::vector&lt;int&gt; outOffset;

  287. <a name="l00587"></a>00587   };

  288. <a name="l00588"></a>00588 

  289. <a name="l00589"></a>00589   <span class="comment">// A protected structure for audio streams.</span>

  290. <a name="l00590"></a>00590   <span class="keyword">struct </span>RtApiStream {

  291. <a name="l00591"></a>00591     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device[2];    <span class="comment">// Playback and record, respectively.</span>

  292. <a name="l00592"></a>00592     <span class="keywordtype">void</span> *apiHandle;           <span class="comment">// void pointer for API specific stream handle information</span>

  293. <a name="l00593"></a>00593     StreamMode mode;           <span class="comment">// OUTPUT, INPUT, or DUPLEX.</span>

  294. <a name="l00594"></a>00594     StreamState state;         <span class="comment">// STOPPED, RUNNING, or CLOSED</span>

  295. <a name="l00595"></a>00595     <span class="keywordtype">char</span> *userBuffer[2];       <span class="comment">// Playback and record, respectively.</span>

  296. <a name="l00596"></a>00596     <span class="keywordtype">char</span> *deviceBuffer;

  297. <a name="l00597"></a>00597     <span class="keywordtype">bool</span> doConvertBuffer[2];   <span class="comment">// Playback and record, respectively.</span>

  298. <a name="l00598"></a>00598     <span class="keywordtype">bool</span> userInterleaved;

  299. <a name="l00599"></a>00599     <span class="keywordtype">bool</span> deviceInterleaved[2]; <span class="comment">// Playback and record, respectively.</span>

  300. <a name="l00600"></a>00600     <span class="keywordtype">bool</span> doByteSwap[2];        <span class="comment">// Playback and record, respectively.</span>

  301. <a name="l00601"></a>00601     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate;

  302. <a name="l00602"></a>00602     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> bufferSize;

  303. <a name="l00603"></a>00603     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nBuffers;

  304. <a name="l00604"></a>00604     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nUserChannels[2];    <span class="comment">// Playback and record, respectively.</span>

  305. <a name="l00605"></a>00605     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nDeviceChannels[2];  <span class="comment">// Playback and record channels, respectively.</span>

  306. <a name="l00606"></a>00606     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channelOffset[2];    <span class="comment">// Playback and record, respectively.</span>

  307. <a name="l00607"></a>00607     <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> latency[2];         <span class="comment">// Playback and record, respectively.</span>

  308. <a name="l00608"></a>00608     <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> userFormat;

  309. <a name="l00609"></a>00609     <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> deviceFormat[2];    <span class="comment">// Playback and record, respectively.</span>

  310. <a name="l00610"></a>00610     StreamMutex mutex;

  311. <a name="l00611"></a>00611     CallbackInfo callbackInfo;

  312. <a name="l00612"></a>00612     ConvertInfo convertInfo[2];

  313. <a name="l00613"></a>00613     <span class="keywordtype">double</span> streamTime;         <span class="comment">// Number of elapsed seconds since the stream started.</span>

  314. <a name="l00614"></a>00614 

  315. <a name="l00615"></a>00615 <span class="preprocessor">#if defined(HAVE_GETTIMEOFDAY)</span>

  316. <a name="l00616"></a>00616 <span class="preprocessor"></span>    <span class="keyword">struct </span>timeval lastTickTimestamp;

  317. <a name="l00617"></a>00617 <span class="preprocessor">#endif</span>

  318. <a name="l00618"></a>00618 <span class="preprocessor"></span>

  319. <a name="l00619"></a>00619     RtApiStream()

  320. <a name="l00620"></a>00620       :apiHandle(0), deviceBuffer(0) { device[0] = 11111; device[1] = 11111; }

  321. <a name="l00621"></a>00621   };

  322. <a name="l00622"></a>00622 

  323. <a name="l00623"></a>00623   <span class="keyword">typedef</span> <span class="keywordtype">signed</span> <span class="keywordtype">short</span> Int16;

  324. <a name="l00624"></a>00624   <span class="keyword">typedef</span> <span class="keywordtype">signed</span> <span class="keywordtype">int</span> Int32;

  325. <a name="l00625"></a>00625   <span class="keyword">typedef</span> <span class="keywordtype">float</span> Float32;

  326. <a name="l00626"></a>00626   <span class="keyword">typedef</span> <span class="keywordtype">double</span> Float64;

  327. <a name="l00627"></a>00627 

  328. <a name="l00628"></a>00628   std::ostringstream errorStream_;

  329. <a name="l00629"></a>00629   std::string errorText_;

  330. <a name="l00630"></a>00630   <span class="keywordtype">bool</span> showWarnings_;

  331. <a name="l00631"></a>00631   RtApiStream stream_;

  332. <a name="l00632"></a>00632 

  333. <a name="l00640"></a>00640   <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, 

  334. <a name="l00641"></a>00641                                 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,

  335. <a name="l00642"></a>00642                                 <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferSize,

  336. <a name="l00643"></a>00643                                 <a class="code" href="structRtAudio_1_1StreamOptions.html">RtAudio::StreamOptions</a> *options );

  337. <a name="l00644"></a>00644 

  338. <a name="l00646"></a>00646   <span class="keywordtype">void</span> tickStreamTime( <span class="keywordtype">void</span> );

  339. <a name="l00647"></a>00647 

  340. <a name="l00649"></a>00649   <span class="keywordtype">void</span> clearStreamInfo();

  341. <a name="l00650"></a>00650 

  342. <a name="l00655"></a>00655   <span class="keywordtype">void</span> verifyStream( <span class="keywordtype">void</span> );

  343. <a name="l00656"></a>00656 

  344. <a name="l00658"></a>00658   <span class="keywordtype">void</span> error( <a class="code" href="classRtError.html#w11">RtError::Type</a> type );

  345. <a name="l00659"></a>00659 

  346. <a name="l00664"></a>00664   <span class="keywordtype">void</span> convertBuffer( <span class="keywordtype">char</span> *outBuffer, <span class="keywordtype">char</span> *inBuffer, ConvertInfo &amp;info );

  347. <a name="l00665"></a>00665 

  348. <a name="l00667"></a>00667   <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#a1">RtAudioFormat</a> format );

  349. <a name="l00668"></a>00668 

  350. <a name="l00670"></a>00670   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> formatBytes( <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> format );

  351. <a name="l00671"></a>00671 

  352. <a name="l00673"></a>00673   <span class="keywordtype">void</span> setConvertInfo( StreamMode mode, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel );

  353. <a name="l00674"></a>00674 };

  354. <a name="l00675"></a>00675 

  355. <a name="l00676"></a>00676 <span class="comment">// **************************************************************** //</span>

  356. <a name="l00677"></a>00677 <span class="comment">//</span>

  357. <a name="l00678"></a>00678 <span class="comment">// Inline RtAudio definitions.</span>

  358. <a name="l00679"></a>00679 <span class="comment">//</span>

  359. <a name="l00680"></a>00680 <span class="comment">// **************************************************************** //</span>

  360. <a name="l00681"></a>00681 

  361. <a name="l00682"></a><a class="code" href="classRtAudio.html#a2">00682</a> <span class="keyword">inline</span> <a class="code" href="classRtAudio.html#w8">RtAudio::Api</a> <a class="code" href="classRtAudio.html#a2">RtAudio :: getCurrentApi</a>( <span class="keywordtype">void</span> ) throw() { <span class="keywordflow">return</span> rtapi_-&gt;getCurrentApi(); }

  362. <a name="l00683"></a><a class="code" href="classRtAudio.html#a3">00683</a> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a3">RtAudio :: getDeviceCount</a>( <span class="keywordtype">void</span> ) throw() { <span class="keywordflow">return</span> rtapi_-&gt;getDeviceCount(); }

  363. <a name="l00684"></a><a class="code" href="classRtAudio.html#a4">00684</a> <span class="keyword">inline</span> <a class="code" href="structRtAudio_1_1DeviceInfo.html">RtAudio::DeviceInfo</a> <a class="code" href="classRtAudio.html#a4">RtAudio :: getDeviceInfo</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device ) { <span class="keywordflow">return</span> rtapi_-&gt;getDeviceInfo( device ); }

  364. <a name="l00685"></a><a class="code" href="classRtAudio.html#a6">00685</a> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a6">RtAudio :: getDefaultInputDevice</a>( <span class="keywordtype">void</span> ) throw() { <span class="keywordflow">return</span> rtapi_-&gt;getDefaultInputDevice(); }

  365. <a name="l00686"></a><a class="code" href="classRtAudio.html#a5">00686</a> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classRtAudio.html#a5">RtAudio :: getDefaultOutputDevice</a>( <span class="keywordtype">void</span> ) throw() { <span class="keywordflow">return</span> rtapi_-&gt;getDefaultOutputDevice(); }

  366. <a name="l00687"></a><a class="code" href="classRtAudio.html#a8">00687</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a8">RtAudio :: closeStream</a>( <span class="keywordtype">void</span> ) throw() { <span class="keywordflow">return</span> rtapi_-&gt;closeStream(); }

  367. <a name="l00688"></a><a class="code" href="classRtAudio.html#a9">00688</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a9">RtAudio :: startStream</a>( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> rtapi_-&gt;startStream(); }

  368. <a name="l00689"></a><a class="code" href="classRtAudio.html#a10">00689</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a10">RtAudio :: stopStream</a>( <span class="keywordtype">void</span> )  { <span class="keywordflow">return</span> rtapi_-&gt;stopStream(); }

  369. <a name="l00690"></a><a class="code" href="classRtAudio.html#a11">00690</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a11">RtAudio :: abortStream</a>( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> rtapi_-&gt;abortStream(); }

  370. <a name="l00691"></a><a class="code" href="classRtAudio.html#a12">00691</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classRtAudio.html#a12">RtAudio :: isStreamOpen</a>( <span class="keywordtype">void</span> ) throw() { <span class="keywordflow">return</span> rtapi_-&gt;isStreamOpen(); }

  371. <a name="l00692"></a><a class="code" href="classRtAudio.html#a13">00692</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classRtAudio.html#a13">RtAudio :: isStreamRunning</a>( <span class="keywordtype">void</span> ) throw() { <span class="keywordflow">return</span> rtapi_-&gt;isStreamRunning(); }

  372. <a name="l00693"></a><a class="code" href="classRtAudio.html#a15">00693</a> <span class="keyword">inline</span> <span class="keywordtype">long</span> <a class="code" href="classRtAudio.html#a15">RtAudio :: getStreamLatency</a>( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> rtapi_-&gt;getStreamLatency(); }

  373. <a name="l00694"></a><a class="code" href="classRtAudio.html#a14">00694</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="classRtAudio.html#a14">RtAudio :: getStreamTime</a>( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> rtapi_-&gt;getStreamTime(); }

  374. <a name="l00695"></a><a class="code" href="classRtAudio.html#a16">00695</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classRtAudio.html#a16">RtAudio :: showWarnings</a>( <span class="keywordtype">bool</span> value ) <span class="keywordflow">throw</span>() { rtapi_-&gt;showWarnings( value ); }

  375. <a name="l00696"></a>00696 

  376. <a name="l00697"></a>00697 <span class="comment">// RtApi Subclass prototypes.</span>

  377. <a name="l00698"></a>00698 

  378. <a name="l00699"></a>00699 <span class="preprocessor">#if defined(__MACOSX_CORE__)</span>

  379. <a name="l00700"></a>00700 <span class="preprocessor"></span>

  380. <a name="l00701"></a>00701 <span class="preprocessor">#include &lt;CoreAudio/AudioHardware.h&gt;</span>

  381. <a name="l00702"></a>00702 

  382. <a name="l00703"></a>00703 <span class="keyword">class </span>RtApiCore: <span class="keyword">public</span> RtApi

  383. <a name="l00704"></a>00704 {

  384. <a name="l00705"></a>00705 <span class="keyword">public</span>:

  385. <a name="l00706"></a>00706 

  386. <a name="l00707"></a>00707   RtApiCore();

  387. <a name="l00708"></a>00708   ~RtApiCore();

  388. <a name="l00709"></a>00709   <a class="code" href="classRtAudio.html#w8">RtAudio::Api</a> getCurrentApi( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> <a class="code" href="classRtAudio.html#w8w4">RtAudio::MACOSX_CORE</a>; };

  389. <a name="l00710"></a>00710   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDeviceCount( <span class="keywordtype">void</span> );

  390. <a name="l00711"></a>00711   <a class="code" href="structRtAudio_1_1DeviceInfo.html">RtAudio::DeviceInfo</a> getDeviceInfo( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device );

  391. <a name="l00712"></a>00712   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDefaultOutputDevice( <span class="keywordtype">void</span> );

  392. <a name="l00713"></a>00713   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDefaultInputDevice( <span class="keywordtype">void</span> );

  393. <a name="l00714"></a>00714   <span class="keywordtype">void</span> closeStream( <span class="keywordtype">void</span> );

  394. <a name="l00715"></a>00715   <span class="keywordtype">void</span> startStream( <span class="keywordtype">void</span> );

  395. <a name="l00716"></a>00716   <span class="keywordtype">void</span> stopStream( <span class="keywordtype">void</span> );

  396. <a name="l00717"></a>00717   <span class="keywordtype">void</span> abortStream( <span class="keywordtype">void</span> );

  397. <a name="l00718"></a>00718   <span class="keywordtype">long</span> getStreamLatency( <span class="keywordtype">void</span> );

  398. <a name="l00719"></a>00719 

  399. <a name="l00720"></a>00720   <span class="comment">// This function is intended for internal use only.  It must be</span>

  400. <a name="l00721"></a>00721   <span class="comment">// public because it is called by the internal callback handler,</span>

  401. <a name="l00722"></a>00722   <span class="comment">// which is not a member of RtAudio.  External use of this function</span>

  402. <a name="l00723"></a>00723   <span class="comment">// will most likely produce highly undesireable results!</span>

  403. <a name="l00724"></a>00724   <span class="keywordtype">bool</span> callbackEvent( AudioDeviceID deviceId,

  404. <a name="l00725"></a>00725                       <span class="keyword">const</span> AudioBufferList *inBufferList,

  405. <a name="l00726"></a>00726                       <span class="keyword">const</span> AudioBufferList *outBufferList );

  406. <a name="l00727"></a>00727 

  407. <a name="l00728"></a>00728   <span class="keyword">private</span>:

  408. <a name="l00729"></a>00729 

  409. <a name="l00730"></a>00730   <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, 

  410. <a name="l00731"></a>00731                         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,

  411. <a name="l00732"></a>00732                         <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferSize,

  412. <a name="l00733"></a>00733                         <a class="code" href="structRtAudio_1_1StreamOptions.html">RtAudio::StreamOptions</a> *options );

  413. <a name="l00734"></a>00734   <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* getErrorCode( OSStatus code );

  414. <a name="l00735"></a>00735 };

  415. <a name="l00736"></a>00736 

  416. <a name="l00737"></a>00737 <span class="preprocessor">#endif</span>

  417. <a name="l00738"></a>00738 <span class="preprocessor"></span>

  418. <a name="l00739"></a>00739 <span class="preprocessor">#if defined(__UNIX_JACK__)</span>

  419. <a name="l00740"></a>00740 <span class="preprocessor"></span>

  420. <a name="l00741"></a>00741 <span class="keyword">class </span>RtApiJack: <span class="keyword">public</span> RtApi

  421. <a name="l00742"></a>00742 {

  422. <a name="l00743"></a>00743 <span class="keyword">public</span>:

  423. <a name="l00744"></a>00744 

  424. <a name="l00745"></a>00745   RtApiJack();

  425. <a name="l00746"></a>00746   ~RtApiJack();

  426. <a name="l00747"></a>00747   <a class="code" href="classRtAudio.html#w8">RtAudio::Api</a> getCurrentApi( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> <a class="code" href="classRtAudio.html#w8w3">RtAudio::UNIX_JACK</a>; };

  427. <a name="l00748"></a>00748   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDeviceCount( <span class="keywordtype">void</span> );

  428. <a name="l00749"></a>00749   <a class="code" href="structRtAudio_1_1DeviceInfo.html">RtAudio::DeviceInfo</a> getDeviceInfo( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device );

  429. <a name="l00750"></a>00750   <span class="keywordtype">void</span> closeStream( <span class="keywordtype">void</span> );

  430. <a name="l00751"></a>00751   <span class="keywordtype">void</span> startStream( <span class="keywordtype">void</span> );

  431. <a name="l00752"></a>00752   <span class="keywordtype">void</span> stopStream( <span class="keywordtype">void</span> );

  432. <a name="l00753"></a>00753   <span class="keywordtype">void</span> abortStream( <span class="keywordtype">void</span> );

  433. <a name="l00754"></a>00754   <span class="keywordtype">long</span> getStreamLatency( <span class="keywordtype">void</span> );

  434. <a name="l00755"></a>00755 

  435. <a name="l00756"></a>00756   <span class="comment">// This function is intended for internal use only.  It must be</span>

  436. <a name="l00757"></a>00757   <span class="comment">// public because it is called by the internal callback handler,</span>

  437. <a name="l00758"></a>00758   <span class="comment">// which is not a member of RtAudio.  External use of this function</span>

  438. <a name="l00759"></a>00759   <span class="comment">// will most likely produce highly undesireable results!</span>

  439. <a name="l00760"></a>00760   <span class="keywordtype">bool</span> callbackEvent( <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> nframes );

  440. <a name="l00761"></a>00761 

  441. <a name="l00762"></a>00762   <span class="keyword">private</span>:

  442. <a name="l00763"></a>00763 

  443. <a name="l00764"></a>00764   <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, 

  444. <a name="l00765"></a>00765                         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,

  445. <a name="l00766"></a>00766                         <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferSize,

  446. <a name="l00767"></a>00767                         <a class="code" href="structRtAudio_1_1StreamOptions.html">RtAudio::StreamOptions</a> *options );

  447. <a name="l00768"></a>00768 };

  448. <a name="l00769"></a>00769 

  449. <a name="l00770"></a>00770 <span class="preprocessor">#endif</span>

  450. <a name="l00771"></a>00771 <span class="preprocessor"></span>

  451. <a name="l00772"></a>00772 <span class="preprocessor">#if defined(__WINDOWS_ASIO__)</span>

  452. <a name="l00773"></a>00773 <span class="preprocessor"></span>

  453. <a name="l00774"></a>00774 <span class="keyword">class </span>RtApiAsio: <span class="keyword">public</span> RtApi

  454. <a name="l00775"></a>00775 {

  455. <a name="l00776"></a>00776 <span class="keyword">public</span>:

  456. <a name="l00777"></a>00777 

  457. <a name="l00778"></a>00778   RtApiAsio();

  458. <a name="l00779"></a>00779   ~RtApiAsio();

  459. <a name="l00780"></a>00780   <a class="code" href="classRtAudio.html#w8">RtAudio::Api</a> getCurrentApi( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> <a class="code" href="classRtAudio.html#w8w5">RtAudio::WINDOWS_ASIO</a>; };

  460. <a name="l00781"></a>00781   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDeviceCount( <span class="keywordtype">void</span> );

  461. <a name="l00782"></a>00782   <a class="code" href="structRtAudio_1_1DeviceInfo.html">RtAudio::DeviceInfo</a> getDeviceInfo( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device );

  462. <a name="l00783"></a>00783   <span class="keywordtype">void</span> closeStream( <span class="keywordtype">void</span> );

  463. <a name="l00784"></a>00784   <span class="keywordtype">void</span> startStream( <span class="keywordtype">void</span> );

  464. <a name="l00785"></a>00785   <span class="keywordtype">void</span> stopStream( <span class="keywordtype">void</span> );

  465. <a name="l00786"></a>00786   <span class="keywordtype">void</span> abortStream( <span class="keywordtype">void</span> );

  466. <a name="l00787"></a>00787   <span class="keywordtype">long</span> getStreamLatency( <span class="keywordtype">void</span> );

  467. <a name="l00788"></a>00788 

  468. <a name="l00789"></a>00789   <span class="comment">// This function is intended for internal use only.  It must be</span>

  469. <a name="l00790"></a>00790   <span class="comment">// public because it is called by the internal callback handler,</span>

  470. <a name="l00791"></a>00791   <span class="comment">// which is not a member of RtAudio.  External use of this function</span>

  471. <a name="l00792"></a>00792   <span class="comment">// will most likely produce highly undesireable results!</span>

  472. <a name="l00793"></a>00793   <span class="keywordtype">bool</span> callbackEvent( <span class="keywordtype">long</span> bufferIndex );

  473. <a name="l00794"></a>00794 

  474. <a name="l00795"></a>00795   <span class="keyword">private</span>:

  475. <a name="l00796"></a>00796 

  476. <a name="l00797"></a>00797   std::vector&lt;RtAudio::DeviceInfo&gt; devices_;

  477. <a name="l00798"></a>00798   <span class="keywordtype">void</span> saveDeviceInfo( <span class="keywordtype">void</span> );

  478. <a name="l00799"></a>00799   <span class="keywordtype">bool</span> coInitialized_;

  479. <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, 

  480. <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,

  481. <a name="l00802"></a>00802                         <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferSize,

  482. <a name="l00803"></a>00803                         <a class="code" href="structRtAudio_1_1StreamOptions.html">RtAudio::StreamOptions</a> *options );

  483. <a name="l00804"></a>00804 };

  484. <a name="l00805"></a>00805 

  485. <a name="l00806"></a>00806 <span class="preprocessor">#endif</span>

  486. <a name="l00807"></a>00807 <span class="preprocessor"></span>

  487. <a name="l00808"></a>00808 <span class="preprocessor">#if defined(__WINDOWS_DS__)</span>

  488. <a name="l00809"></a>00809 <span class="preprocessor"></span>

  489. <a name="l00810"></a>00810 <span class="keyword">class </span>RtApiDs: <span class="keyword">public</span> RtApi

  490. <a name="l00811"></a>00811 {

  491. <a name="l00812"></a>00812 <span class="keyword">public</span>:

  492. <a name="l00813"></a>00813 

  493. <a name="l00814"></a>00814   RtApiDs();

  494. <a name="l00815"></a>00815   ~RtApiDs();

  495. <a name="l00816"></a>00816   <a class="code" href="classRtAudio.html#w8">RtAudio::Api</a> getCurrentApi( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> <a class="code" href="classRtAudio.html#w8w6">RtAudio::WINDOWS_DS</a>; };

  496. <a name="l00817"></a>00817   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDeviceCount( <span class="keywordtype">void</span> );

  497. <a name="l00818"></a>00818   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDefaultOutputDevice( <span class="keywordtype">void</span> );

  498. <a name="l00819"></a>00819   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDefaultInputDevice( <span class="keywordtype">void</span> );

  499. <a name="l00820"></a>00820   <a class="code" href="structRtAudio_1_1DeviceInfo.html">RtAudio::DeviceInfo</a> getDeviceInfo( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device );

  500. <a name="l00821"></a>00821   <span class="keywordtype">void</span> closeStream( <span class="keywordtype">void</span> );

  501. <a name="l00822"></a>00822   <span class="keywordtype">void</span> startStream( <span class="keywordtype">void</span> );

  502. <a name="l00823"></a>00823   <span class="keywordtype">void</span> stopStream( <span class="keywordtype">void</span> );

  503. <a name="l00824"></a>00824   <span class="keywordtype">void</span> abortStream( <span class="keywordtype">void</span> );

  504. <a name="l00825"></a>00825   <span class="keywordtype">long</span> getStreamLatency( <span class="keywordtype">void</span> );

  505. <a name="l00826"></a>00826 

  506. <a name="l00827"></a>00827   <span class="comment">// This function is intended for internal use only.  It must be</span>

  507. <a name="l00828"></a>00828   <span class="comment">// public because it is called by the internal callback handler,</span>

  508. <a name="l00829"></a>00829   <span class="comment">// which is not a member of RtAudio.  External use of this function</span>

  509. <a name="l00830"></a>00830   <span class="comment">// will most likely produce highly undesireable results!</span>

  510. <a name="l00831"></a>00831   <span class="keywordtype">void</span> callbackEvent( <span class="keywordtype">void</span> );

  511. <a name="l00832"></a>00832 

  512. <a name="l00833"></a>00833   <span class="keyword">private</span>:

  513. <a name="l00834"></a>00834 

  514. <a name="l00835"></a>00835   <span class="keywordtype">bool</span> coInitialized_;

  515. <a name="l00836"></a>00836   <span class="keywordtype">bool</span> buffersRolling;

  516. <a name="l00837"></a>00837   <span class="keywordtype">long</span> duplexPrerollBytes;

  517. <a name="l00838"></a>00838   <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, 

  518. <a name="l00839"></a>00839                         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,

  519. <a name="l00840"></a>00840                         <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferSize,

  520. <a name="l00841"></a>00841                         <a class="code" href="structRtAudio_1_1StreamOptions.html">RtAudio::StreamOptions</a> *options );

  521. <a name="l00842"></a>00842 };

  522. <a name="l00843"></a>00843 

  523. <a name="l00844"></a>00844 <span class="preprocessor">#endif</span>

  524. <a name="l00845"></a>00845 <span class="preprocessor"></span>

  525. <a name="l00846"></a>00846 <span class="preprocessor">#if defined(__LINUX_ALSA__)</span>

  526. <a name="l00847"></a>00847 <span class="preprocessor"></span>

  527. <a name="l00848"></a>00848 <span class="keyword">class </span>RtApiAlsa: <span class="keyword">public</span> RtApi

  528. <a name="l00849"></a>00849 {

  529. <a name="l00850"></a>00850 <span class="keyword">public</span>:

  530. <a name="l00851"></a>00851 

  531. <a name="l00852"></a>00852   RtApiAlsa();

  532. <a name="l00853"></a>00853   ~RtApiAlsa();

  533. <a name="l00854"></a>00854   <a class="code" href="classRtAudio.html#w8">RtAudio::Api</a> getCurrentApi() { <span class="keywordflow">return</span> <a class="code" href="classRtAudio.html#w8w1">RtAudio::LINUX_ALSA</a>; };

  534. <a name="l00855"></a>00855   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDeviceCount( <span class="keywordtype">void</span> );

  535. <a name="l00856"></a>00856   <a class="code" href="structRtAudio_1_1DeviceInfo.html">RtAudio::DeviceInfo</a> getDeviceInfo( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device );

  536. <a name="l00857"></a>00857   <span class="keywordtype">void</span> closeStream( <span class="keywordtype">void</span> );

  537. <a name="l00858"></a>00858   <span class="keywordtype">void</span> startStream( <span class="keywordtype">void</span> );

  538. <a name="l00859"></a>00859   <span class="keywordtype">void</span> stopStream( <span class="keywordtype">void</span> );

  539. <a name="l00860"></a>00860   <span class="keywordtype">void</span> abortStream( <span class="keywordtype">void</span> );

  540. <a name="l00861"></a>00861 

  541. <a name="l00862"></a>00862   <span class="comment">// This function is intended for internal use only.  It must be</span>

  542. <a name="l00863"></a>00863   <span class="comment">// public because it is called by the internal callback handler,</span>

  543. <a name="l00864"></a>00864   <span class="comment">// which is not a member of RtAudio.  External use of this function</span>

  544. <a name="l00865"></a>00865   <span class="comment">// will most likely produce highly undesireable results!</span>

  545. <a name="l00866"></a>00866   <span class="keywordtype">void</span> callbackEvent( <span class="keywordtype">void</span> );

  546. <a name="l00867"></a>00867 

  547. <a name="l00868"></a>00868   <span class="keyword">private</span>:

  548. <a name="l00869"></a>00869 

  549. <a name="l00870"></a>00870   std::vector&lt;RtAudio::DeviceInfo&gt; devices_;

  550. <a name="l00871"></a>00871   <span class="keywordtype">void</span> saveDeviceInfo( <span class="keywordtype">void</span> );

  551. <a name="l00872"></a>00872   <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, 

  552. <a name="l00873"></a>00873                         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,

  553. <a name="l00874"></a>00874                         <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferSize,

  554. <a name="l00875"></a>00875                         <a class="code" href="structRtAudio_1_1StreamOptions.html">RtAudio::StreamOptions</a> *options );

  555. <a name="l00876"></a>00876 };

  556. <a name="l00877"></a>00877 

  557. <a name="l00878"></a>00878 <span class="preprocessor">#endif</span>

  558. <a name="l00879"></a>00879 <span class="preprocessor"></span>

  559. <a name="l00880"></a>00880 <span class="preprocessor">#if defined(__LINUX_OSS__)</span>

  560. <a name="l00881"></a>00881 <span class="preprocessor"></span>

  561. <a name="l00882"></a>00882 <span class="keyword">class </span>RtApiOss: <span class="keyword">public</span> RtApi

  562. <a name="l00883"></a>00883 {

  563. <a name="l00884"></a>00884 <span class="keyword">public</span>:

  564. <a name="l00885"></a>00885 

  565. <a name="l00886"></a>00886   RtApiOss();

  566. <a name="l00887"></a>00887   ~RtApiOss();

  567. <a name="l00888"></a>00888   <a class="code" href="classRtAudio.html#w8">RtAudio::Api</a> getCurrentApi() { <span class="keywordflow">return</span> <a class="code" href="classRtAudio.html#w8w2">RtAudio::LINUX_OSS</a>; };

  568. <a name="l00889"></a>00889   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDeviceCount( <span class="keywordtype">void</span> );

  569. <a name="l00890"></a>00890   <a class="code" href="structRtAudio_1_1DeviceInfo.html">RtAudio::DeviceInfo</a> getDeviceInfo( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device );

  570. <a name="l00891"></a>00891   <span class="keywordtype">void</span> closeStream( <span class="keywordtype">void</span> );

  571. <a name="l00892"></a>00892   <span class="keywordtype">void</span> startStream( <span class="keywordtype">void</span> );

  572. <a name="l00893"></a>00893   <span class="keywordtype">void</span> stopStream( <span class="keywordtype">void</span> );

  573. <a name="l00894"></a>00894   <span class="keywordtype">void</span> abortStream( <span class="keywordtype">void</span> );

  574. <a name="l00895"></a>00895 

  575. <a name="l00896"></a>00896   <span class="comment">// This function is intended for internal use only.  It must be</span>

  576. <a name="l00897"></a>00897   <span class="comment">// public because it is called by the internal callback handler,</span>

  577. <a name="l00898"></a>00898   <span class="comment">// which is not a member of RtAudio.  External use of this function</span>

  578. <a name="l00899"></a>00899   <span class="comment">// will most likely produce highly undesireable results!</span>

  579. <a name="l00900"></a>00900   <span class="keywordtype">void</span> callbackEvent( <span class="keywordtype">void</span> );

  580. <a name="l00901"></a>00901 

  581. <a name="l00902"></a>00902   <span class="keyword">private</span>:

  582. <a name="l00903"></a>00903 

  583. <a name="l00904"></a>00904   <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, 

  584. <a name="l00905"></a>00905                         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,

  585. <a name="l00906"></a>00906                         <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferSize,

  586. <a name="l00907"></a>00907                         <a class="code" href="structRtAudio_1_1StreamOptions.html">RtAudio::StreamOptions</a> *options );

  587. <a name="l00908"></a>00908 };

  588. <a name="l00909"></a>00909 

  589. <a name="l00910"></a>00910 <span class="preprocessor">#endif</span>

  590. <a name="l00911"></a>00911 <span class="preprocessor"></span>

  591. <a name="l00912"></a>00912 <span class="preprocessor">#if defined(__RTAUDIO_DUMMY__)</span>

  592. <a name="l00913"></a>00913 <span class="preprocessor"></span>

  593. <a name="l00914"></a>00914 <span class="keyword">class </span>RtApiDummy: <span class="keyword">public</span> RtApi

  594. <a name="l00915"></a>00915 {

  595. <a name="l00916"></a>00916 <span class="keyword">public</span>:

  596. <a name="l00917"></a>00917 

  597. <a name="l00918"></a>00918   RtApiDummy() { errorText_ = <span class="stringliteral">"RtApiDummy: This class provides no functionality."</span>; error( <a class="code" href="classRtError.html#w11w0">RtError::WARNING</a> ); };

  598. <a name="l00919"></a>00919   <a class="code" href="classRtAudio.html#w8">RtAudio::Api</a> getCurrentApi( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> <a class="code" href="classRtAudio.html#w8w7">RtAudio::RTAUDIO_DUMMY</a>; };

  599. <a name="l00920"></a>00920   <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getDeviceCount( <span class="keywordtype">void</span> ) { <span class="keywordflow">return</span> 0; };

  600. <a name="l00921"></a>00921   <a class="code" href="structRtAudio_1_1DeviceInfo.html">RtAudio::DeviceInfo</a> getDeviceInfo( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> device ) { <a class="code" href="structRtAudio_1_1DeviceInfo.html">RtAudio::DeviceInfo</a> info; <span class="keywordflow">return</span> info; };

  601. <a name="l00922"></a>00922   <span class="keywordtype">void</span> closeStream( <span class="keywordtype">void</span> ) {};

  602. <a name="l00923"></a>00923   <span class="keywordtype">void</span> startStream( <span class="keywordtype">void</span> ) {};

  603. <a name="l00924"></a>00924   <span class="keywordtype">void</span> stopStream( <span class="keywordtype">void</span> ) {};

  604. <a name="l00925"></a>00925   <span class="keywordtype">void</span> abortStream( <span class="keywordtype">void</span> ) {};

  605. <a name="l00926"></a>00926 

  606. <a name="l00927"></a>00927   <span class="keyword">private</span>:

  607. <a name="l00928"></a>00928 

  608. <a name="l00929"></a>00929   <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, 

  609. <a name="l00930"></a>00930                         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> firstChannel, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sampleRate,

  610. <a name="l00931"></a>00931                         <a class="code" href="RtAudio_8h.html#a1">RtAudioFormat</a> format, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *bufferSize,

  611. <a name="l00932"></a>00932                         <a class="code" href="structRtAudio_1_1StreamOptions.html">RtAudio::StreamOptions</a> *options ) { <span class="keywordflow">return</span> <span class="keyword">false</span>; };

  612. <a name="l00933"></a>00933 };

  613. <a name="l00934"></a>00934 

  614. <a name="l00935"></a>00935 <span class="preprocessor">#endif</span>

  615. <a name="l00936"></a>00936 <span class="preprocessor"></span>

  616. <a name="l00937"></a>00937 <span class="preprocessor">#endif</span>

  617. <a name="l00938"></a>00938 <span class="preprocessor"></span>

  618. <a name="l00939"></a>00939 <span class="comment">// Indentation settings for Vim and Emacs</span>

  619. <a name="l00940"></a>00940 <span class="comment">//</span>

  620. <a name="l00941"></a>00941 <span class="comment">// Local Variables:</span>

  621. <a name="l00942"></a>00942 <span class="comment">// c-basic-offset: 2</span>

  622. <a name="l00943"></a>00943 <span class="comment">// indent-tabs-mode: nil</span>

  623. <a name="l00944"></a>00944 <span class="comment">// End:</span>

  624. <a name="l00945"></a>00945 <span class="comment">//</span>

  625. <a name="l00946"></a>00946 <span class="comment">// vim: et sts=2 sw=2</span>

  626. </pre></div><HR>

  627. 

  628. <table><tr><td><img src="../images/mcgill.gif" width=165></td>

  629.   <td>&copy;2001-2008 Gary P. Scavone, McGill University. All Rights Reserved.<br>Maintained by <a href="http://www.music.mcgill.ca/~gary/">Gary P. Scavone</a>.</td></tr>

  630. </table>

  631. 

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