addons/PortAudio/source/AudioDevice.h

   1
   2 #ifndef AudioDevice_DEFINED
   3 #define AudioDevice_DEFINED 1
   4
   5 #include "List.h"
   6 #include "UArray.h"
   7 #include <portaudio.h>
   8
   9 typedef double PaTimestamp;
  10
  11 typedef struct AudioDevice AudioDevice;
  12
  13 typedef void  (AudioDeviceCallback)(void *);
  14
  15 struct AudioDevice
  16 {
  17     PaError err;
  18     PaStream *stream;
  19
  20     int isFreed;
  21     int locked;
  22     int needsData;
  23     AudioDeviceCallback *needsDataCallback;
  24     void *needsDataCallbackContext;
  25
  26     /* for speaker output */
  27     unsigned long writeFrame;
  28     UArray *writeBuffer;
  29     UArray *nextWriteBuffer;
  30
  31     /* for mic input */
  32     unsigned long readFrame;
  33     UArray *readBuffer;
  34     UArray *nextReadBuffer;
  35     int isListening;
  36     int maxReadFrame;
  37
  38     int showed;
  39     int writeBufferIsEmpty;
  40     unsigned int lockSleepMicroSeconds;
  41 };
  42
  43 void AudioDevice_nanoSleep(AudioDevice *self);
  44
  45 AudioDevice *AudioDevice_new(void);
  46 void AudioDevice_free(AudioDevice *self);
  47
  48 int AudioDevice_framesPerBuffer(AudioDevice *self);
  49
  50 void AudioDevice_init(AudioDevice *self);
  51 void AudioDevice_terminate(AudioDevice *self);
  52
  53 void AudioDevice_isListening_(AudioDevice *self, int v);
  54 int AudioDevice_isListening(AudioDevice *self);
  55
  56 void AudioDevice_open(AudioDevice *self);
  57 void AudioDevice_openForReadingAndWriting(AudioDevice *self);
  58 void AudioDevice_close(AudioDevice *self);
  59
  60 const char *AudioDevice_error(AudioDevice *self);
  61 void AudioDevice_printError(AudioDevice *self);
  62 void AudioDevice_checkForError(AudioDevice *self);
  63
  64 void AudioDevice_start(AudioDevice *self);
  65 void AudioDevice_stop(AudioDevice *self);
  66
  67 int AudioDevice_isActive(AudioDevice *self);
  68 int AudioDevice_streamTime(AudioDevice *self);
  69 double AudioDevice_cpuLoad(AudioDevice *self);
  70
  71
  72 int AudioDevice_callbackTest(
  73   void *inputBuffer,
  74   void *outputBuffer,
  75   unsigned long framesPerBuffer,
  76   PaTimestamp outTime,
  77   void *userData);
  78
  79 int AudioDevice_callbackInputTest(
  80   void *inputBuffer,
  81   void *outputBuffer,
  82   unsigned long framesPerBuffer,
  83   PaTimestamp outTime,
  84   void *userData);
  85
  86 int AudioDevice_callback(
  87   void *inputBuffer,
  88   void *outputBuffer,
  89   unsigned long framesPerBuffer,
  90   PaTimestamp outTime,
  91   void *userData);
  92
  93
  94 int AudioDevice_swapWriteBuffers(AudioDevice *self);
  95 int AudioDevice_swapReadBuffers(AudioDevice *self);
  96
  97 void AudioDevice_write_(AudioDevice *self, UArray *buf);
  98 void AudioDevice_writeData_length_(AudioDevice *self, uint8_t *data, size_t numBytes);
  99 UArray *AudioDevice_read(AudioDevice *self);
 100 void AudioDevice_clearBuffers(AudioDevice *self);
 101
 102 int AudioDevice_isLocked(AudioDevice *self);
 103
 104 #endif