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annotate scripts/audio/@audiorecorder/audiorecorder.m @ 19539:ce02743b6f2a

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Fix texinfo docstring syntax for all audio functions * libinterp/dldfcn/audiodevinfo.cc, libinterp/dldfcn/audioinfo.cc, libinterp/dldfcn/audioread.cc, libinterp/dldfcn/audiowrite.cc, scripts/audio/@audioplayer/__get_properties__.m, scripts/audio/@audioplayer/audioplayer.m, scripts/audio/@audioplayer/display.m, scripts/audio/@audioplayer/get.m, scripts/audio/@audioplayer/isplaying.m, scripts/audio/@audioplayer/pause.m, scripts/audio/@audioplayer/play.m, scripts/audio/@audioplayer/playblocking.m, scripts/audio/@audioplayer/resume.m, scripts/audio/@audioplayer/set.m, scripts/audio/@audioplayer/stop.m, scripts/audio/@audiorecorder/audiorecorder.m, scripts/audio/@audiorecorder/display.m, scripts/audio/@audiorecorder/get.m, scripts/audio/@audiorecorder/getaudiodata.m, scripts/audio/@audiorecorder/getplayer.m, scripts/audio/@audiorecorder/isrecording.m, scripts/audio/@audiorecorder/pause.m, scripts/audio/@audiorecorder/play.m, scripts/audio/@audiorecorder/record.m, scripts/audio/@audiorecorder/recordblocking.m, scripts/audio/@audiorecorder/resume.m, scripts/audio/@audiorecorder/set.m, scripts/audio/@audiorecorder/stop.m: Fix texinfo docstring formatting, wrap long lines, and use consistent lowercase variable names.
author Mike Miller <mtmiller@ieee.org>
date Thu, 03 Oct 2013 09:50:01 -0400
parents 36a26a131209
children fdb8a62ef17a
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rev   line source
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1 ## Copyright (C) 2013 Vytautas Jančauskas
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 3 of the License, or (at
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {@var{recorder} =} audiorecorder ()
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21 ## Create an audiorecorder object recording 8 bit mono audio at 8000 Hz
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22 ## sample rate.
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23 ## @end deftypefn
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24 ## @deftypefn {Function File} {@var{recorder} =} audiorecorder (@var{fs}, @var{nbits}, @var{channels})
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25 ## Create an audiorecorder object recording at specified sample rate
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26 ## @var{fs}, specified bit depth @var{nbits}, and specified number of
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27 ## @var{channels}.
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28 ## @end deftypefn
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29 ## @deftypefn {Function File} {@var{recorder} =} audiorecorder (@var{fs}, @var{nbits}, @var{channels}, @var{id})
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30 ## Create an audiorecorder object recording at specified sample rate @var{fs},
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31 ## specified bit depth @var{nbits}, number of @var{channels}, and recording
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32 ## on the device specified by @var{id}. You can get device IDs by using the
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33 ## audiodevinfo function.
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34 ## @end deftypefn
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35 ## @deftypefn {Function File} {@var{recorder} =} audiorecorder (@var{function}, @var{fs})
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36 ## Argument @var{function} is a function handle, inline function, or a string
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37 ## value of a function name that will get called to process audio. Audio
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38 ## will be recorded at @var{fs} sampling rate.
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39 ## @end deftypefn
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40 ## @deftypefn {Function File} {@var{recorder} =} audiorecorder (@var{function}, @var{fs}, @var{nbits})
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41 ## Same as above but also allows you to specify the number of bits per
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42 ## sample.
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43 ## @end deftypefn
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44 ## @deftypefn {Function File} {@var{recorder} =} audiorecorder (@var{function}, @var{fs}, @var{nbits}, @var{id})
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45 ## Same as above but also allows you to specify device @var{id} that will be
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46 ## used.
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47 ## @end deftypefn
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48
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49 function recorder = audiorecorder (varargin)
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50 if (nargin > 5)
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51 print_usage ();
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52 endif
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53 if nargin > 0 && ischar (varargin{1})
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54 varargin{1} = str2func (varargin{1});
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55 endif
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56 recorder.recorder = __recorder_audiorecorder__ (varargin{:});
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57 recorder = class (recorder, "audiorecorder");
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58 endfunction
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59
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60 %!test
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61 %! recorder = audiorecorder (44100, 16, 2);
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62 %! recordblocking (recorder, 1);
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63 %! data = getaudiodata (recorder, "int16");
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64 %! assert (strcmp (class (data), "int16"));
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65 %! data = getaudiodata (recorder, "int8");
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66 %! assert (strcmp (class (data), "int8"));
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67 %! data = getaudiodata (recorder, "uint8");
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68 %! assert (strcmp (class (data), "uint8"));
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69 %! assert (size (data)(1), recorder.TotalSamples);
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70 %! assert (size (data)(2), 2);
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71 %! assert (size (data)(1) != 0);
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72
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73 %!test
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74 %! recorder = audiorecorder (44100, 16, 2);
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75 %! record (recorder, 1)
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76 %! sleep (2);
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77 %! record (recorder, 1);
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78 %! sleep (2);
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79 %! data = getaudiodata (recorder);
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80 %! assert (size (data)(1) < 44100 * 2);
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81
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82 %!test
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83 %! recorder = audiorecorder (44100, 16, 2);
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84 %! record (recorder, 1);
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85 %! sleep (2);
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86 %! player1 = audioplayer (recorder);
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87 %! player2 = getplayer (recorder);
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88 %! play (player1);
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89 %! sleep (2);
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90 %! play (player2);
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91 %! sleep (2);
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92 %! assert (player1.TotalSamples, recorder.TotalSamples);
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93 %! assert (player2.TotalSamples, recorder.TotalSamples);
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94
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95 %!test
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96 %! recorder = audiorecorder;
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97 %! set (recorder, {"SampleRate", "Tag", "UserData"}, {8000, "tag", [1, 2; 3, 4]});
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98 %! assert (recorder.SampleRate, 8000);
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99 %! assert (recorder.Tag, "tag");
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100 %! assert (recorder.UserData, [1, 2; 3, 4]);
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101
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102 %!test
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103 %! recorder = audiorecorder;
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104 %! settable = set (recorder);
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105 %! settable.SampleRate = 8000;
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106 %! settable.Tag = "tag";
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107 %! settable.UserData = [1, 2; 3, 4];
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108 %! set (recorder, settable);
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109 %! assert (recorder.SampleRate, 8000);
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110 %! assert (recorder.Tag, "tag");
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111 %! assert (recorder.UserData, [1, 2; 3, 4]);
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112
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113 %!test
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114 %! recorder = audiorecorder;
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115 %! recorder.SampleRate = 8000;
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116 %! recorder.Tag = "tag";
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117 %! recorder.UserData = [1, 2; 3, 4];
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118 %! properties = get (recorder, {"SampleRate", "Tag", "UserData"});
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119 %! assert (properties, {8000, "tag", [1, 2; 3, 4]});
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120
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121 #%!function status = callback_record (sound)
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122 #%! fid = fopen ("record.txt", "at");
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123 #%! for index = 1:rows(sound)
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124 #%! fprintf (fid, "%.4f, %.4f\n", sound(index, 1), sound(index, 2));
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125 #%! endfor
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126 #%! fclose (fid);
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127 #%! status = 0;
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128 #%!endfunction
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129
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130 #%!test
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131 #%! recorder = audiorecorder (@callback_record, 44100);
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132 #%! unlink ("record.txt")
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133 #%! record (recorder);
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134 #%! sleep (2);
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135 #%! stop (player);
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136 #%! s = stat ("record.txt");
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137 #%! assert (s.size > 0);
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138
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139 #%!test
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140 #%! recorder = audiorecorder (@callback_record, 44100);
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141 #%! unlink ("record.txt")
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142 #%! record (recorder);
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143 #%! sleep (2);
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144 #%! stop (recorder);
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145 #%! s = stat ("record.txt");
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146 #%! assert (s.size > 0);