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annotate scripts/deprecated/playaudio.m @ 20595:c1a6c31ac29a

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eliminate more simple uses of error_state * ov-classdef.cc: Eliminate simple uses of error_state.
author John W. Eaton <jwe@octave.org>
date Tue, 06 Oct 2015 00:20:02 -0400
parents 9fc020886ae9
children
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4197fc428c7d maint: Update copyright notices for 2015.
John W. Eaton <jwe@octave.org>
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1 ## Copyright (C) 1995-2015 John W. Eaton
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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} {} playaudio (@var{name}, @var{ext})
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21 ## @deftypefnx {Function File} {} playaudio (@var{x})
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22 ##
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23 ## @code{playaudio} is deprecated and will be removed in Octave version 4.4.
0165d9607624 Deprecate audio functions loadaudio, playaudio, saveaudio, and setaudio.
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24 ## Please use @code{audioplayer} in all new code.
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25 ##
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26 ## Play the audio file @file{@var{name}.@var{ext}} or the audio data
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27 ## stored in the vector @var{x}.
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28 ## @seealso{lin2mu, mu2lin, loadaudio, saveaudio, setaudio, record}
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29 ## @end deftypefn
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30
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31 ## Author: AW <Andreas.Weingessel@ci.tuwien.ac.at>
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32 ## Created: 11 April 1994
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33 ## Adapted-By: jwe
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34
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35 function playaudio (name, ext)
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36
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37 persistent warned = false;
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38 if (! warned)
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39 warned = true;
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40 warning ("Octave:deprecated-function",
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41 "playaudio is obsolete and will be removed from a future version of Octave, please use audioplayer instead");
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42 endif
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43
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44 if (nargin < 1 || nargin > 2)
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45 print_usage ();
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46 endif
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47
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48 if (nargin == 1 && isnumeric (name))
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49 ## play a vector
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50 if (! isvector (name))
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51 error ("playaudio: X must be a vector");
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52 endif
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53 X = name(:) + 127;
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54 unwind_protect
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55 file = tempname ();
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56 fid = fopen (file, "wb");
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57 fwrite (fid, X, "uchar");
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58 fclose (fid);
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59 [status, out] = system (sprintf ('cat "%s" > /dev/dsp', file));
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60 if (status != 0)
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61 system (sprintf ("paplay --raw \"%s\"", file));
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62 endif
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63 unwind_protect_cleanup
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64 unlink (file);
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65 end_unwind_protect
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66 elseif (nargin >= 1 && ischar (name))
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67 ## play a file
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68 if (nargin == 1)
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69 name = [name ".lin"];
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70 elseif (nargin == 2)
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71 name = [name "." ext];
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72 endif
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73 if (any (strcmp (ext, {"lin", "raw"})))
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74 [status, out] = system (sprintf ('cat "%s" > /dev/dsp', name));
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75 if (status != 0)
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76 system (sprintf ('paplay --raw "%s"', name));
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77 endif
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78 elseif (any (strcmp (ext, {"mu", "au" "snd", "ul"})))
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79 [status, out] = system (sprintf ('cat "%s" > /dev/audio', name));
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80 if (status != 0)
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81 system (sprintf ('paplay "%s"', name));
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82 endif
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83 else
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84 error ("playaudio: unsupported extension '%s'", ext);
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85 endif
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86 else
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87 print_usage ();
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88 endif
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89
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90 endfunction
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91
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92
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93 ## Test input validation
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94 %!error playaudio ()
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95 %!error playaudio (1,2,3)
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96 %!error <X must be a vector> playaudio (magic (3))
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97 %!error <unsupported extension> playaudio ("file", "abc")
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98 %!error playaudio ({"abc"})
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99