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1 #ifndef INCLUDED_PORTAUDIO_DEVICE_HXX
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2 #define INCLUDED_PORTAUDIO_DEVICE_HXX
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3
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4 // ---------------------------------------------------------------------------------------
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5
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6 #include <iterator>
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7
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8 #include "portaudio.h"
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9
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10 #include "portaudiocpp/SampleDataFormat.hxx"
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11
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12 // ---------------------------------------------------------------------------------------
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13
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14 // Forward declaration(s):
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15 namespace portaudio
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16 {
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17 class System;
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18 class HostApi;
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19 }
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20
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21 // ---------------------------------------------------------------------------------------
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22
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23 // Declaration(s):
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24 namespace portaudio
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25 {
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26
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27 //////
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28 /// @brief Class which represents a PortAudio device in the System.
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29 ///
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30 /// A single physical device in the system may have multiple PortAudio
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31 /// Device representations using different HostApi 's though. A Device
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32 /// can be half-duplex or full-duplex. A half-duplex Device can be used
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33 /// to create a half-duplex Stream. A full-duplex Device can be used to
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34 /// create a full-duplex Stream. If supported by the HostApi, two
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35 /// half-duplex Devices can even be used to create a full-duplex Stream.
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36 ///
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37 /// Note that Device objects are very light-weight and can be passed around
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38 /// by-value.
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39 //////
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40 class Device
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41 {
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42 public:
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43 // query info: name, max in channels, max out channels,
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44 // default low/hight input/output latency, default sample rate
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45 PaDeviceIndex index() const;
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46 const char *name() const;
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47 int maxInputChannels() const;
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48 int maxOutputChannels() const;
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49 PaTime defaultLowInputLatency() const;
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50 PaTime defaultHighInputLatency() const;
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51 PaTime defaultLowOutputLatency() const;
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52 PaTime defaultHighOutputLatency() const;
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53 double defaultSampleRate() const;
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54
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55 bool isInputOnlyDevice() const; // extended
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56 bool isOutputOnlyDevice() const; // extended
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57 bool isFullDuplexDevice() const; // extended
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58 bool isSystemDefaultInputDevice() const; // extended
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59 bool isSystemDefaultOutputDevice() const; // extended
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60 bool isHostApiDefaultInputDevice() const; // extended
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61 bool isHostApiDefaultOutputDevice() const; // extended
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62
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63 bool operator==(const Device &rhs) const;
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64 bool operator!=(const Device &rhs) const;
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65
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66 // host api reference
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67 HostApi &hostApi();
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68 const HostApi &hostApi() const;
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69
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70 private:
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71 PaDeviceIndex index_;
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72 const PaDeviceInfo *info_;
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73
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74 private:
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75 friend class System;
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76
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77 explicit Device(PaDeviceIndex index);
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78 ~Device();
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79
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80 Device(const Device &); // non-copyable
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81 Device &operator=(const Device &); // non-copyable
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82 };
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83
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84 // -----------------------------------------------------------------------------------
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85
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86 } // namespace portaudio
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87
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88 // ---------------------------------------------------------------------------------------
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89
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90 #endif // INCLUDED_PORTAUDIO_DEVICE_HXX
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91
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