1 #include <iostream>
2 #include "portaudiocpp/PortAudioCpp.hxx"
3
4 #ifdef WIN32
5 #include "portaudiocpp/AsioDeviceAdapter.hxx"
6 #endif
7
8 // ---------------------------------------------------------------------------------------
9
printSupportedStandardSampleRates(const portaudio::DirectionSpecificStreamParameters & inputParameters,const portaudio::DirectionSpecificStreamParameters & outputParameters)10 void printSupportedStandardSampleRates(
11 const portaudio::DirectionSpecificStreamParameters &inputParameters,
12 const portaudio::DirectionSpecificStreamParameters &outputParameters)
13 {
14 static double STANDARD_SAMPLE_RATES[] = {
15 8000.0, 9600.0, 11025.0, 12000.0, 16000.0, 22050.0, 24000.0, 32000.0,
16 44100.0, 48000.0, 88200.0, 96000.0, -1 }; // negative terminated list
17
18 int printCount = 0;
19
20 for (int i = 0; STANDARD_SAMPLE_RATES[i] > 0; ++i)
21 {
22 portaudio::StreamParameters tmp = portaudio::StreamParameters(inputParameters, outputParameters, STANDARD_SAMPLE_RATES[i], 0, paNoFlag);
23
24 if (tmp.isSupported())
25 {
26 if (printCount == 0)
27 {
28 std::cout << " " << STANDARD_SAMPLE_RATES[i]; // 8.2
29 printCount = 1;
30 }
31 else if (printCount == 4)
32 {
33 std::cout << "," << std::endl;
34 std::cout << " " << STANDARD_SAMPLE_RATES[i]; // 8.2
35 printCount = 1;
36 }
37 else
38 {
39 std::cout << ", " << STANDARD_SAMPLE_RATES[i]; // 8.2
40 ++printCount;
41 }
42 }
43 }
44
45 if (printCount == 0)
46 std::cout << "None" << std::endl;
47 else
48 std::cout << std::endl;
49 }
50
51 // ---------------------------------------------------------------------------------------
52
53 int main(int, char*[]);
main(int,char * [])54 int main(int, char*[])
55 {
56 try
57 {
58 portaudio::AutoSystem autoSys;
59
60 portaudio::System &sys = portaudio::System::instance();
61
62 std::cout << "PortAudio version number = " << sys.version() << std::endl;
63 std::cout << "PortAudio version text = '" << sys.versionText() << "'" << std::endl;
64
65 int numDevices = sys.deviceCount();
66 std::cout << "Number of devices = " << numDevices << std::endl;
67
68 for (portaudio::System::DeviceIterator i = sys.devicesBegin(); i != sys.devicesEnd(); ++i)
69 {
70 std::cout << "--------------------------------------- device #" << (*i).index() << std::endl;
71
72 // Mark global and API specific default devices:
73 bool defaultDisplayed = false;
74
75 if ((*i).isSystemDefaultInputDevice())
76 {
77 std::cout << "[ Default Input";
78 defaultDisplayed = true;
79 }
80 else if ((*i).isHostApiDefaultInputDevice())
81 {
82 std::cout << "[ Default " << (*i).hostApi().name() << " Input";
83 defaultDisplayed = true;
84 }
85
86 if ((*i).isSystemDefaultOutputDevice())
87 {
88 std::cout << (defaultDisplayed ? "," : "[");
89 std::cout << " Default Output";
90 defaultDisplayed = true;
91 }
92 else if ((*i).isHostApiDefaultOutputDevice())
93 {
94 std::cout << (defaultDisplayed ? "," : "[");
95 std::cout << " Default " << (*i).hostApi().name() << " Output";
96 defaultDisplayed = true;
97 }
98
99 if (defaultDisplayed)
100 std::cout << " ]" << std::endl;
101
102 // Print device info:
103 std::cout << "Name = " << (*i).name() << std::endl;
104 std::cout << "Host API = " << (*i).hostApi().name() << std::endl;
105 std::cout << "Max inputs = " << (*i).maxInputChannels() << ", Max outputs = " << (*i).maxOutputChannels() << std::endl;
106
107 std::cout << "Default low input latency = " << (*i).defaultLowInputLatency() << std::endl; // 8.3
108 std::cout << "Default low output latency = " << (*i).defaultLowOutputLatency() << std::endl; // 8.3
109 std::cout << "Default high input latency = " << (*i).defaultHighInputLatency() << std::endl; // 8.3
110 std::cout << "Default high output latency = " << (*i).defaultHighOutputLatency() << std::endl; // 8.3
111
112 #ifdef WIN32
113 // ASIO specific latency information:
114 if ((*i).hostApi().typeId() == paASIO)
115 {
116 portaudio::AsioDeviceAdapter asioDevice((*i));
117
118 std::cout << "ASIO minimum buffer size = " << asioDevice.minBufferSize() << std::endl;
119 std::cout << "ASIO maximum buffer size = " << asioDevice.maxBufferSize() << std::endl;
120 std::cout << "ASIO preferred buffer size = " << asioDevice.preferredBufferSize() << std::endl;
121
122 if (asioDevice.granularity() == -1)
123 std::cout << "ASIO buffer granularity = power of 2" << std::endl;
124 else
125 std::cout << "ASIO buffer granularity = " << asioDevice.granularity() << std::endl;
126 }
127 #endif // WIN32
128
129 std::cout << "Default sample rate = " << (*i).defaultSampleRate() << std::endl; // 8.2
130
131 // Poll for standard sample rates:
132 portaudio::DirectionSpecificStreamParameters inputParameters((*i), (*i).maxInputChannels(), portaudio::INT16, true, 0.0, NULL);
133 portaudio::DirectionSpecificStreamParameters outputParameters((*i), (*i).maxOutputChannels(), portaudio::INT16, true, 0.0, NULL);
134
135 if (inputParameters.numChannels() > 0)
136 {
137 std::cout << "Supported standard sample rates" << std::endl;
138 std::cout << " for half-duplex 16 bit " << inputParameters.numChannels() << " channel input = " << std::endl;
139 printSupportedStandardSampleRates(inputParameters, portaudio::DirectionSpecificStreamParameters::null());
140 }
141
142 if (outputParameters.numChannels() > 0)
143 {
144 std::cout << "Supported standard sample rates" << std::endl;
145 std::cout << " for half-duplex 16 bit " << outputParameters.numChannels() << " channel output = " << std::endl;
146 printSupportedStandardSampleRates(portaudio::DirectionSpecificStreamParameters::null(), outputParameters);
147 }
148
149 if (inputParameters.numChannels() > 0 && outputParameters.numChannels() > 0)
150 {
151 std::cout << "Supported standard sample rates" << std::endl;
152 std::cout << " for full-duplex 16 bit " << inputParameters.numChannels() << " channel input, " << outputParameters.numChannels() << " channel output = " << std::endl;
153 printSupportedStandardSampleRates(inputParameters, outputParameters);
154 }
155 }
156
157 std::cout << "----------------------------------------------" << std::endl;
158 }
159 catch (const portaudio::PaException &e)
160 {
161 std::cout << "A PortAudio error occured: " << e.paErrorText() << std::endl;
162 }
163 catch (const portaudio::PaCppException &e)
164 {
165 std::cout << "A PortAudioCpp error occured: " << e.what() << std::endl;
166 }
167 catch (const std::exception &e)
168 {
169 std::cout << "A generic exception occured: " << e.what() << std::endl;
170 }
171 catch (...)
172 {
173 std::cout << "An unknown exception occured." << std::endl;
174 }
175
176 return 0;
177 }
178