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annotate scripts/audio/@audioplayer/audioplayer.m @ 20158:7503499a252b stable

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doc: Update docstrings to have one sentence summary as first line. Update scripts in audio, elfun, general, geometry, and image directories. * scripts/audio/@audioplayer/__get_properties__.m, scripts/audio/@audioplayer/audioplayer.m, scripts/audio/@audioplayer/get.m, scripts/audio/@audioplayer/isplaying.m, scripts/audio/@audioplayer/play.m, scripts/audio/@audioplayer/playblocking.m, scripts/audio/@audioplayer/set.m, scripts/audio/@audioplayer/subsasgn.m, scripts/audio/@audioplayer/subsref.m, scripts/audio/@audiorecorder/audiorecorder.m, scripts/audio/@audiorecorder/get.m, scripts/audio/@audiorecorder/getaudiodata.m, scripts/audio/@audiorecorder/getplayer.m, scripts/audio/@audiorecorder/isrecording.m, scripts/audio/@audiorecorder/play.m, scripts/audio/@audiorecorder/record.m, scripts/audio/@audiorecorder/recordblocking.m, scripts/audio/@audiorecorder/set.m, scripts/audio/@audiorecorder/stop.m, scripts/audio/@audiorecorder/subsasgn.m, scripts/audio/@audiorecorder/subsref.m, scripts/audio/lin2mu.m, scripts/audio/mu2lin.m, scripts/audio/record.m, scripts/audio/sound.m, scripts/audio/soundsc.m, scripts/audio/wavread.m, scripts/audio/wavwrite.m, scripts/elfun/cosd.m, scripts/elfun/sind.m, scripts/elfun/tand.m, scripts/general/accumarray.m, scripts/general/accumdim.m, scripts/general/bitcmp.m, scripts/general/bitget.m, scripts/general/bitset.m, scripts/general/blkdiag.m, scripts/general/cart2pol.m, scripts/general/cart2sph.m, scripts/general/cell2mat.m, scripts/general/celldisp.m, scripts/general/chop.m, scripts/general/circshift.m, scripts/general/common_size.m, scripts/general/cplxpair.m, scripts/general/cumtrapz.m, scripts/general/dblquad.m, scripts/general/deal.m, scripts/general/del2.m, scripts/general/display.m, scripts/general/divergence.m, scripts/general/fieldnames.m, scripts/general/flip.m, scripts/general/flipdim.m, scripts/general/fliplr.m, scripts/general/flipud.m, scripts/general/gradient.m, scripts/general/interp3.m, scripts/general/interpft.m, scripts/general/interpn.m, scripts/general/loadobj.m, scripts/general/logspace.m, scripts/general/methods.m, scripts/general/nargchk.m, scripts/general/narginchk.m, scripts/general/nargoutchk.m, scripts/general/nextpow2.m, scripts/general/nthargout.m, scripts/general/num2str.m, scripts/general/pol2cart.m, scripts/general/polyarea.m, scripts/general/postpad.m, scripts/general/prepad.m, scripts/general/profile.m, scripts/general/quadgk.m, scripts/general/quadl.m, scripts/general/quadv.m, scripts/general/randi.m, scripts/general/rat.m, scripts/general/repmat.m, scripts/general/rot90.m, scripts/general/rotdim.m, scripts/general/saveobj.m, scripts/general/shift.m, scripts/general/shiftdim.m, scripts/general/sortrows.m, scripts/general/sph2cart.m, scripts/general/structfun.m, scripts/general/subsindex.m, scripts/general/trapz.m, scripts/general/triplequad.m, scripts/geometry/delaunayn.m, scripts/geometry/dsearch.m, scripts/geometry/dsearchn.m, scripts/geometry/griddata.m, scripts/geometry/griddata3.m, scripts/geometry/griddatan.m, scripts/geometry/inpolygon.m, scripts/geometry/rectint.m, scripts/geometry/tsearchn.m, scripts/geometry/voronoi.m, scripts/geometry/voronoin.m, scripts/help/__unimplemented__.m, scripts/help/doc.m, scripts/help/doc_cache_create.m, scripts/help/get_first_help_sentence.m, scripts/help/help.m, scripts/help/lookfor.m, scripts/help/print_usage.m, scripts/help/type.m, scripts/help/which.m, scripts/image/autumn.m, scripts/image/bone.m, scripts/image/brighten.m, scripts/image/cmpermute.m, scripts/image/colorcube.m, scripts/image/contrast.m, scripts/image/cool.m, scripts/image/copper.m, scripts/image/cubehelix.m, scripts/image/flag.m, scripts/image/gmap40.m, scripts/image/gray.m, scripts/image/gray2ind.m, scripts/image/hot.m, scripts/image/hsv.m, scripts/image/image.m, scripts/image/imagesc.m, scripts/image/imfinfo.m, scripts/image/imformats.m, scripts/image/imread.m, scripts/image/imshow.m, scripts/image/imwrite.m, scripts/image/iscolormap.m, scripts/image/jet.m, scripts/image/lines.m, scripts/image/ntsc2rgb.m, scripts/image/ocean.m, scripts/image/pink.m, scripts/image/prism.m, scripts/image/rainbow.m, scripts/image/rgb2ntsc.m, scripts/image/spinmap.m, scripts/image/spring.m, scripts/image/summer.m, scripts/image/white.m, scripts/image/winter.m: Update docstrings to have one sentence summary as first line. Re-structure to have line lengths <= 80 chars.
author Rik <rik@octave.org>
date Sun, 03 May 2015 09:36:20 -0700
parents 9fc020886ae9
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 ## Copyright (C) 2013-2015 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{player} =} audioplayer (@var{y}, @var{fs})
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21 ## @deftypefnx {Function File} {@var{player} =} audioplayer (@var{y}, @var{fs}, @var{nbits})
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22 ## @deftypefnx {Function File} {@var{player} =} audioplayer (@var{y}, @var{fs}, @var{nbits}, @var{id})
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23 ## @deftypefnx {Function File} {@var{player} =} audioplayer (@var{recorder})
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24 ## @deftypefnx {Function File} {@var{player} =} audioplayer (@var{recorder}, @var{id})
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25 ## Create an audioplayer object that will play back data @var{y} at sample
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26 ## rate @var{fs}.
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27 ##
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28 ## The optional arguments @var{nbits}, and @var{id} specify the bit depth and
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29 ## player device id, respectively. Device IDs may be found using the
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30 ## audiodevinfo function. Given an audioplayer object, use the data from the
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31 ## object to initialize the player.
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32 ##
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33 ## The signal @var{y} can be a vector or a two-dimensional array.
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34 ##
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35 ## The following example will create an audioplayer object that will play
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36 ## back one second of white noise at 44100 sample rate using 8 bits per
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37 ## sample.
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38 ##
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39 ## @example
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40 ## @group
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41 ## y = randn (2, 44100) - 0.5;
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42 ## player = audioplayer (y, 44100, 8);
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43 ## play (player);
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44 ## @end group
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45 ## @end example
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46 ## @end deftypefn
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47
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48 ## FIXME: callbacks don't work properly, apparently because portaudio
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49 ## will execute the callbacks in a separate thread, and calling Octave
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50 ## functions in a separate thread which is likely to cause trouble with
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51 ## all of Octave's global data...
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52 ##
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53 ## @deftypefnx {Function File} {@var{player} =} audioplayer (@var{function}, @dots{})
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54 ##
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55 ## Given a function handle, use that function to process the audio.
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56 #
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57 ## The following example will create and register a callback that generates
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58 ## a sine wave on both channels.
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59 ##
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60 ## @example
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61 ## @group
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62 ## function [ sound, status ] = callback_sine (frames)
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63 ## global lphase = 0.0;
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64 ## global rphase = 0.0;
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65 ## incl = 440.0 / 44100.0;
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66 ## incr = 443.0 / 44100.0;
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67 ## nl = incl * frames;
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68 ## nr = incr * frames;
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69 ## left = sin (2.0 * pi * [lphase:incl:lphase+nl]);
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70 ## right = sin (2.0 * pi * [rphase:incr:rphase+nr]);
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71 ## sound = [left', right'];
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72 ## status = 0;
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73 ## lphase = lphase + nl;
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74 ## rphase = rphase + nr;
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75 ## endfunction
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76 ## player = audioplayer (@@callback_sine, 44100);
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77 ## play (player);
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78 ## # play for as long as you want
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79 ## stop (player);
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80 ## @end group
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81
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82 function player = audioplayer (varargin)
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83
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84 if (nargin < 1 || nargin > 4
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85 || (nargin < 2 && (isa (varargin{1}, "function_handle")
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86 || ischar (varargin{1}))))
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87 print_usage ();
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88 endif
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89
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90 if (isa (varargin{1}, "audiorecorder"))
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91 if (nargin == 1)
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92 player = getplayer (varargin{1});
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93 elseif (nargin == 2)
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94 recorder = varargin{1};
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95 data = getaudiodata (recorder);
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96 player = audioplayer (data, get (recorder, "SampleRate"),
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97 get (recorder, "BitsPerSample"), varargin{2});
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98 else
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99 print_usage ();
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100 endif
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101 else
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102 if (ischar (varargin{1}))
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103 varargin{1} = str2func (varargin{1});
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104 endif
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105 player.player = __player_audioplayer__ (varargin{:});
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106 player = class (player, "audioplayer");
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107 endif
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John W. Eaton <jwe@octave.org>
parents: 19509
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108
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Vytautas Jančauskas <unaudio@gmail.com>
parents:
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109 endfunction
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110
19833
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19697
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111
19668
b2fe4dbe5266 Don't play or record audio during 'make check'
Mike Miller <mtmiller@ieee.org>
parents: 19571
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112 %!demo
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Mike Miller <mtmiller@ieee.org>
parents: 19571
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113 %! fs = 44100;
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Mike Miller <mtmiller@ieee.org>
parents: 19571
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114 %! audio = randn (2, 2*fs) - 0.5;
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Mike Miller <mtmiller@ieee.org>
parents: 19571
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115 %! player = audioplayer (audio, fs);
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Mike Miller <mtmiller@ieee.org>
parents: 19571
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116 %! play (player);
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Mike Miller <mtmiller@ieee.org>
parents: 19571
diff changeset
117 %! sleep (1);
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Mike Miller <mtmiller@ieee.org>
parents: 19571
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118 %! pause (player);
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Mike Miller <mtmiller@ieee.org>
parents: 19571
diff changeset
119 %! sleep (1);
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Mike Miller <mtmiller@ieee.org>
parents: 19571
diff changeset
120 %! resume (player);
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Mike Miller <mtmiller@ieee.org>
parents: 19571
diff changeset
121 %! sleep (1);
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Mike Miller <mtmiller@ieee.org>
parents: 19571
diff changeset
122 %! stop (player);
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Mike Miller <mtmiller@ieee.org>
parents: 19571
diff changeset
123
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Mike Miller <mtmiller@ieee.org>
parents: 19571
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124 ## Tests of audioplayer must not actually play anything.
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Mike Miller <mtmiller@ieee.org>
parents: 19571
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125
19528
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Andreas Weber <andy.weber.aw@gmail.com>
parents: 19523
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126 %!testif HAVE_PORTAUDIO
19509
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John W. Eaton <jwe@octave.org>
parents: 19507
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127 %! mono = randn (1, 44100) - 0.5;
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John W. Eaton <jwe@octave.org>
parents: 19507
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128 %! stereo = randn (2, 44100) - 0.5;
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John W. Eaton <jwe@octave.org>
parents: 19507
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129 %! fs = 44100;
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John W. Eaton <jwe@octave.org>
parents: 19507
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130 %! player1 = audioplayer (mono, fs);
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John W. Eaton <jwe@octave.org>
parents: 19507
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131 %! player2 = audioplayer (stereo, fs);
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John W. Eaton <jwe@octave.org>
parents: 19507
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132 %! assert (player1.NumberOfChannels, 1);
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
133 %! assert (player2.NumberOfChannels, 2);
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
134 %! assert (player1.SampleRate, 44100);
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
135 %! assert (player2.SampleRate, 44100);
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
136 %! assert (player1.TotalSamples, 44100);
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
137 %! assert (player2.TotalSamples, 44100);
19476
e1f98e402a7e New files - @audiorecorder and @audioplayer classes
Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
138
19528
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Andreas Weber <andy.weber.aw@gmail.com>
parents: 19523
diff changeset
139 %!testif HAVE_PORTAUDIO
19509
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
140 %! audio = randn (2, 44100) - 0.5;
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
141 %! fs = 44100;
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John W. Eaton <jwe@octave.org>
parents: 19507
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142 %! player = audioplayer (audio, fs);
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
143 %! set (player, {"SampleRate", "Tag", "UserData"}, {8000, "tag", [1, 2; 3, 4]});
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
144 %! assert (player.SampleRate, 8000);
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
145 %! assert (player.Tag, "tag");
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
146 %! assert (player.UserData, [1, 2; 3, 4]);
19476
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Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
147
19528
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Andreas Weber <andy.weber.aw@gmail.com>
parents: 19523
diff changeset
148 %!testif HAVE_PORTAUDIO
19509
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
149 %! audio = randn (2, 44100) - 0.5;
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
150 %! fs = 44100;
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
151 %! player = audioplayer (audio, fs);
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
152 %! settable = set (player);
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
153 %! settable.SampleRate = 8000;
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
154 %! settable.Tag = "tag";
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
155 %! settable.UserData = [1, 2; 3, 4];
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
156 %! set (player, settable);
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
157 %! assert (player.SampleRate, 8000);
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
158 %! assert (player.Tag, "tag");
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
159 %! assert (player.UserData, [1, 2; 3, 4]);
19476
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Vytautas Jančauskas <unaudio@gmail.com>
parents:
diff changeset
160
19528
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Andreas Weber <andy.weber.aw@gmail.com>
parents: 19523
diff changeset
161 %!testif HAVE_PORTAUDIO
19509
2a16dac2176f fix audioplayer tests
John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
162 %! audio = randn (2, 44100) - 0.5;
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
163 %! fs = 44100;
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
164 %! player = audioplayer (audio, fs);
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
165 %! player.SampleRate = 8000;
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
166 %! player.Tag = "tag";
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
167 %! player.UserData = [1, 2; 3, 4];
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
168 %! properties = get (player, {"SampleRate", "Tag", "UserData"});
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John W. Eaton <jwe@octave.org>
parents: 19507
diff changeset
169 %! assert (properties, {8000, "tag", [1, 2; 3, 4]});
19476
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Vytautas Jančauskas <unaudio@gmail.com>
parents:
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170
19560
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John W. Eaton <jwe@octave.org>
parents: 19528
diff changeset
171 #%!function [sound, status] = callback (samples)
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John W. Eaton <jwe@octave.org>
parents: 19528
diff changeset
172 #%! sound = rand (samples, 2) - 0.5;
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John W. Eaton <jwe@octave.org>
parents: 19528
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173 #%! status = 0;
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John W. Eaton <jwe@octave.org>
parents: 19528
diff changeset
174 #%!endfunction
19476
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Vytautas Jančauskas <unaudio@gmail.com>
parents:
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175
19560
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John W. Eaton <jwe@octave.org>
parents: 19528
diff changeset
176 #%!testif HAVE_PORTAUDIO
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John W. Eaton <jwe@octave.org>
parents: 19528
diff changeset
177 #%! player = audioplayer (@callback, 44100);
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John W. Eaton <jwe@octave.org>
parents: 19528
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178 #%! play (player);
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John W. Eaton <jwe@octave.org>
parents: 19528
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179 #%! sleep (2);
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John W. Eaton <jwe@octave.org>
parents: 19528
diff changeset
180 #%! stop (player);
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John W. Eaton <jwe@octave.org>
parents: 19528
diff changeset
181 #%! assert (1);
19476
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Vytautas Jančauskas <unaudio@gmail.com>
parents:
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182
19560
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John W. Eaton <jwe@octave.org>
parents: 19528
diff changeset
183 #%!testif HAVE_PORTAUDIO
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John W. Eaton <jwe@octave.org>
parents: 19528
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184 #%! player = audioplayer ("callback", 44100, 16);
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John W. Eaton <jwe@octave.org>
parents: 19528
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185 #%! play (player);
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John W. Eaton <jwe@octave.org>
parents: 19528
diff changeset
186 #%! sleep (2);
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John W. Eaton <jwe@octave.org>
parents: 19528
diff changeset
187 #%! stop (player);
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John W. Eaton <jwe@octave.org>
parents: 19528
diff changeset
188 #%! assert (1);