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annotate libinterp/dldfcn/audiodevinfo.cc @ 19469:ea5c156aa804

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audiodevinfo.cc: new file * audiodevinfo.cc: new file implementing audiodevinfo function
author Vytautas Jančauskas <unaudio@gmail.com>
date Wed, 11 Sep 2013 20:42:15 +0300
parents
children c2031ad6dbe7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
19469
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
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1 #include <octave/oct.h>
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Vytautas Jančauskas <unaudio@gmail.com>
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2 #include <octave/ov-struct.h>
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Vytautas Jančauskas <unaudio@gmail.com>
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3 #include <portaudio.h>
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4
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5 #include "common.h"
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6
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7 DEFUN_DLD(audiodevinfo, args, ,
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Vytautas Jančauskas <unaudio@gmail.com>
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8 "-*- texinfo -*-\n\
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9 @deftypefn{Loadable Function} @var{devinfo} = audiodevinfo\n\
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10 \n\
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11 Returns a structure with two fields called \"input\" and \"output\". \
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12 Each structure contains an array of structures with three fields called \
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13 \"Name\", \"DriverVersion\" and \"ID\". Each structure contains information \
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14 about a PortAudio device.\n\
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15 \n\
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16 @deftypefnx{Loadable Function} @var{devs} = audiodevinfo(@var{IO})\n\
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17 \n\
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18 Returns the number of input or output devices available. Set @var{IO} to 1 \
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19 for input devices and to 0 for output devices.\n\
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20 @deftypefnx{Loadable Function} @var{name} = audiodevinfo(@var{IO}, @var{ID})\n\
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21 \n\
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22 Returns the name of a device specified by numerical @var{ID}. Set @var{IO} \
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23 to 1 for input devices and to 0 for output devices.\n\
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24 @deftypefnx{Loadable Function} @var{id} = audiodevinfo(@var{IO}, @var{name})\n\
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25 \n\
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26 Returns the id of a device specified by name. Set @var{IO} \
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27 to 1 for input devices and to 0 for output devices.\n\
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28 @deftypefnx{Loadable Function} @var{id} = audiodevinfo(@var{IO}, @var{rate},\
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29 @var{bits}, @var{chans})\n\
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30 \n\
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31 Returns the id of the first device that supports playback or recording\
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32 using the specified sampling rate (@var{rate}), bits per sample (@var{bits})\
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33 and number of channels (@var{chans}). Set @var{IO} to 1 for input devices\
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34 ant to 0 for output devices.\
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35 @deftypefnx{Loadable Function} @var{supports} = audiodevinfo(@var{IO}, @var{ID},\
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36 @var{rate}, @var{bits}, @var{chans})\n\
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37 \n\
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38 Returns 1 if the device bearing @var{ID} supports specified sampling rate\
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39 (@var{rate}), bits per sample (@var{bits}) and number of channels (@var{chans}).\
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40 Returns 0 otherwise. Set @var{IO} to 1 for input devices and to 0 for output\
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41 devices.\n\
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42 @end deftypefn"
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43 )
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44 {
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45 int nargin = args.length();
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Vytautas Jančauskas <unaudio@gmail.com>
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46 octave_value retval;
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47 PaError err;
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Vytautas Jančauskas <unaudio@gmail.com>
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48 octave_scalar_map devinfo;
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49 octave_value_list input;
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50 octave_value_list output;
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51 err = Pa_Initialize ();
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52 if (err != paNoError)
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53 {
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54 error ("audiodevinfo: cannot initialize PortAudio");
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55 return retval;
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56 }
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57 int num_devices;
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58 num_devices = Pa_GetDeviceCount ();
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59 if (num_devices < 0)
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60 {
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61 error ("audiodevinfo: no audio device found");
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62 return retval;
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63 }
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64 octave_idx_type numinput = 0, numoutput = 0;
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65 for (int i = 0; i < num_devices; i++)
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66 {
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67 const PaDeviceInfo* device_info = Pa_GetDeviceInfo (i);
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68
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69 if (device_info->maxInputChannels != 0)
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70 numinput++;
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71
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72 if (device_info->maxOutputChannels != 0)
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73 numoutput++;
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74 }
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75 Cell input_name (dim_vector (1, numinput)),
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76 input_id (dim_vector (1, numinput)),
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77 input_driver_version (dim_vector (1, numinput)),
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78 output_name (dim_vector (1, numoutput)),
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79 output_driver_version (dim_vector (1, numoutput)),
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80 output_id (dim_vector (1, numoutput));
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81 octave_idx_type idx_i = 0, idx_o = 0;
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82 for (int i = 0; i < num_devices; i++)
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83 {
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84 const PaDeviceInfo* device_info = Pa_GetDeviceInfo (i);
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85 const char *driver;
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Vytautas Jančauskas <unaudio@gmail.com>
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86 char name[128];
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87 driver = Pa_GetHostApiInfo (device_info -> hostApi) -> name;
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88 sprintf(name, "%s (%s)", device_info->name, driver);
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89
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90 if (device_info->maxInputChannels != 0)
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91 {
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92 input_name(idx_i) = name;
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93 input_driver_version(idx_i) = driver;
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94 input_id(idx_i) = i;
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95 idx_i++;
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96 }
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97
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98 if (device_info->maxOutputChannels != 0)
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99 {
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100 output_name(idx_o) = name;
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101 output_driver_version(idx_o) = driver;
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102 output_id(idx_o) = i;
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103 idx_o++;
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104 }
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105 }
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106 octave_map inputdev, outputdev;
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107 inputdev.setfield ("Name", input_name);
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108 inputdev.setfield ("DriverVersion", input_driver_version);
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109 inputdev.setfield ("ID", input_id);
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110 outputdev.setfield ("Name", output_name);
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111 outputdev.setfield ("DriverVersion", output_driver_version);
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112 outputdev.setfield ("ID", output_id);
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113 devinfo.setfield ("input", inputdev);
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114 devinfo.setfield ("output", outputdev);
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115 // Return information about input and output audio devices and
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116 // their properties.
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117 if (nargin == 0)
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118 {
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119 retval = devinfo;
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120 }
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121 // Return the number of input or output devices
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122 else if (nargin == 1)
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123 {
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124 if (args(0).int_value () == 0)
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125 {
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126 retval = octave_value (numoutput);
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127 }
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128 else if (args(0).int_value () == 1)
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129 {
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130 retval = octave_value (numinput);
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131 }
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132 else
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133 {
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134 error ("audiodevinfo: please specify 0 for output \
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135 and 1 for input devices");
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136 return retval;
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137 }
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138 }
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139 // Return device name when given id or id when given device name.
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
140 else if (nargin == 2)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
141 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
142 bool found = false;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
143 int outin = args(0).int_value ();
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
144 if (args(1).is_string ())
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
145 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
146 if (outin == 0)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
147 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
148 for (int i = 0; i < numoutput; i++)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
149 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
150 if (output_name(i).string_value () == args(1).string_value ())
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
151 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
152 retval = output_id(i);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
153 found = true;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
154 break;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
155 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
156 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
157 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
158 else if (outin == 1)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
159 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
160 for (int i = 0; i < numinput; i++)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
161 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
162 if (input_name(i).string_value () == args(1).string_value ())
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
163 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
164 retval = input_id(i);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
165 found = true;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
166 break;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
167 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
168 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
169 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
170 else
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
171 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
172 error ("audiodevinfo: please specify 0 for output \
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
173 and 1 for input devices");
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
174 return retval;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
175 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
176 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
177 else
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
178 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
179 if (outin == 0)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
180 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
181 for (int i = 0; i < numoutput; i++)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
182 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
183 if (output_id(i).int_value () == args(1).int_value ())
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
184 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
185 retval = output_name(i);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
186 found = true;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
187 break;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
188 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
189 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
190 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
191 else if (outin == 1)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
192 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
193 for (int i = 0; i < numinput; i++)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
194 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
195 if (input_id(i).int_value () == args(1).int_value ())
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
196 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
197 retval = input_name(i);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
198 found = true;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
199 break;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
200 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
201 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
202 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
203 else
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
204 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
205 error ("audiodevinfo: please specify 0 for output \
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
206 and 1 for input devices");
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
207 return retval;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
208 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
209 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
210 if (not found)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
211 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
212 error("audiodevinfo: no device meeting the specified criteria found");
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
213 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
214 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
215 else if (nargin == 3)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
216 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
217 //
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
218 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
219 // Return the id of the first device meeting specified criteria.
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
220 else if (nargin == 4)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
221 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
222 int io = args(0).int_value ();
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
223 int rate = args(1).int_value ();
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
224 int bits = args(2).int_value ();
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
225 int chans = args(3).int_value ();
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
226 for (int i = 0; i < num_devices; i++)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
227 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
228 PaStreamParameters stream_parameters;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
229 stream_parameters.device = i;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
230 stream_parameters.channelCount = chans;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
231 PaSampleFormat format = bits_to_format(bits);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
232 if (format != 0)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
233 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
234 stream_parameters.sampleFormat = format;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
235 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
236 else
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
237 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
238 error("audiodevinfo: no such bits per sample format");
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
239 return retval;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
240 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
241 stream_parameters.suggestedLatency =
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
242 Pa_GetDeviceInfo (i)->defaultLowInputLatency;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
243 stream_parameters.hostApiSpecificStreamInfo = NULL;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
244 if (io == 0)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
245 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
246 if (Pa_GetDeviceInfo (i)->maxOutputChannels < chans)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
247 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
248 continue;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
249 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
250 err = Pa_IsFormatSupported (NULL, &stream_parameters, rate);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
251 if (err == paFormatIsSupported)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
252 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
253 retval = i;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
254 return retval;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
255 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
256 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
257 else if (io == 1)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
258 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
259 if (Pa_GetDeviceInfo (i)->maxInputChannels < chans)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
260 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
261 continue;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
262 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
263 err = Pa_IsFormatSupported (&stream_parameters, NULL, rate);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
264 if (err == paFormatIsSupported)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
265 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
266 retval = i;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
267 return retval;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
268 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
269 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
270 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
271 retval = -1;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
272 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
273 // Check if given device supports specified playback or recording modes.
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
274 else if (nargin == 5)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
275 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
276 int io = args(0).int_value ();
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
277 int id = args(1).int_value ();
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
278 int rate = args(2).int_value ();
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
279 int bits = args(3).int_value ();
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
280 int chans = args(4).int_value ();
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
281 PaStreamParameters stream_parameters;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
282 stream_parameters.device = id;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
283 stream_parameters.channelCount = chans;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
284 PaSampleFormat format = bits_to_format(bits);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
285 if (format != 0)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
286 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
287 stream_parameters.sampleFormat = format;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
288 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
289 else
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
290 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
291 error("audiodevinfo: no such bits per sample format");
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
292 return retval;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
293 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
294 stream_parameters.suggestedLatency =
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
295 Pa_GetDeviceInfo (id)->defaultLowInputLatency;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
296 stream_parameters.hostApiSpecificStreamInfo = NULL;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
297 if (io == 0)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
298 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
299 if (Pa_GetDeviceInfo (id)->maxOutputChannels < chans)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
300 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
301 retval = 0;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
302 return retval;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
303 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
304 err = Pa_IsFormatSupported (NULL, &stream_parameters, rate);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
305 if (err == paFormatIsSupported)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
306 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
307 retval = 1;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
308 return retval;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
309 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
310 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
311 else if (io == 1)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
312 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
313 if (Pa_GetDeviceInfo (id)->maxInputChannels < chans)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
314 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
315 retval = 0;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
316 return retval;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
317 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
318 err = Pa_IsFormatSupported (&stream_parameters, NULL, rate);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
319 if (err == paFormatIsSupported)
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
320 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
321 retval = 1;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
322 return retval;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
323 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
324 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
325 else
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
326 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
327 error ("audiodevinfo: please specify 0 for output\
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
328 and 1 for input devices");
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
329 return retval;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
330 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
331 retval = 0;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
332 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
333 else
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
334 {
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
335 error ("audiodevinfo: wrong number of arguments");
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
336 return retval;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
337 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
338 return retval;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
339 }
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
340
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
341 /*
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
342
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
343 %!test
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
344 %! devinfo = audiodevinfo;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
345 %! assert(rows(devinfo.('input')) == 1);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
346 %! assert(rows(devinfo.('output')) == 1);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
347
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
348 %!test
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
349 %! devinfo = audiodevinfo;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
350 %! nout = audiodevinfo(0);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
351 %! nin = audiodevinfo(1);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
352 %! assert(columns(devinfo.('output')) == nout);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
353 %! assert(columns(devinfo.('input')) == nin);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
354
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
355 %!test
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
356 %! devinfo = audiodevinfo;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
357 %! nout = audiodevinfo(0);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
358 %! nin = audiodevinfo(1);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
359 %! for i=1:nout,
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
360 %! assert(devinfo.('output')(i).('Name') == audiodevinfo(0, devinfo.('output')(i).('ID')))
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
361 %! end
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
362 %! for i=1:nin,
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
363 %! assert(devinfo.('input')(i).('Name') == audiodevinfo(0, devinfo.('input')(i).('ID')))
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
364 %! end
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
365
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
366 %!test
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
367 %! devinfo = audiodevinfo;
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
368 %! nout = audiodevinfo(0);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
369 %! nin = audiodevinfo(1);
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
370 %! for i=1:nout,
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
371 %! assert(devinfo.('output')(i).('ID') == audiodevinfo(0, devinfo.('output')(i).('Name')))
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
372 %! end
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
373 %! for i=1:nin,
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
374 %! assert(devinfo.('input')(i).('ID') == audiodevinfo(0, devinfo.('input')(i).('Name')))
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
375 %! end
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
376
ea5c156aa804 audiodevinfo.cc: new file
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
377 */