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RtWvIn.h
1 #ifndef STK_RTWVIN_H
2 #define STK_RTWVIN_H
3 
4 #include "WvIn.h"
5 #include "RtAudio.h"
6 #include "Mutex.h"
7 
8 namespace stk {
9 
10 /***************************************************/
29 /***************************************************/
30 
31 class RtWvIn : public WvIn
32 {
33 public:
35 
42  RtWvIn( unsigned int nChannels = 1, StkFloat sampleRate = Stk::sampleRate(),
43  int device = 0, int bufferFrames = RT_BUFFER_SIZE, int nBuffers = 20 );
44 
46  ~RtWvIn();
47 
49 
53  void start( void );
54 
56 
60  void stop( void );
61 
63 
72  StkFloat lastOut( unsigned int channel = 0 );
73 
75 
84  StkFloat tick( unsigned int channel = 0 );
85 
87 
95  StkFrames& tick( StkFrames& frames, unsigned int channel = 0 );
96 
97  // This function is not intended for general use but must be
98  // public for access from the audio callback function.
99  void fillBuffer( void *buffer, unsigned int nFrames );
100 
101 protected:
102 
103  RtAudio adc_;
104  Mutex mutex_;
105  bool stopped_;
106  unsigned int readIndex_;
107  unsigned int writeIndex_;
108  unsigned int framesFilled_;
109 
110 };
111 
112 inline StkFloat RtWvIn :: lastOut( unsigned int channel )
113 {
114 #if defined(_STK_DEBUG_)
115  if ( channel >= data_.channels() ) {
116  oStream_ << "RtWvIn::lastOut(): channel argument and audio stream are incompatible!";
117  handleError( StkError::FUNCTION_ARGUMENT );
118  }
119 #endif
120 
121  return lastFrame_[channel];
122 }
123 
124 } // stk namespace
125 
126 #endif

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