octave_test.m
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上传日期:2022-01-05
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- # Copyright (C) 2007 Erik de Castro Lopo <erikd@mega-nerd.com>
- #
- # This program is free software; you can redistribute it and/or modify
- # it under the terms of the GNU Lesser General Public License as published by
- # the Free Software Foundation; either version 2.1 of the License, or
- # (at your option) any later version.
- #
- # This program is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- # GNU Lesser General Public License for more details.
- #
- # You should have received a copy of the GNU Lesser General Public License
- # along with this program; if not, write to the Free Software
- # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- # These tests are nowhere near comprehensive.
- printf (" Running Octave tests : ") ;
- fflush (stdout) ;
- filename = "whatever" ;
- srate_out = 32000 ;
- fmt_out = "wav-float" ;
- t = (2 * pi / srate_out * (0:srate_out-1))' ;
- data_out = sin (440.0 * t) ;
- # Write out a file.
- sfwrite (filename, data_out, srate_out, fmt_out) ;
- # Read it back in again.
- [ data_in, srate_in, fmt_in ] = sfread (filename) ;
- if (srate_in != srate_out)
- error ("nnSample rate mismatch : %d -> %d.nn", srate_out, srate_in) ;
- endif
- # Octave strcmp return 1 for the same.
- if (strcmp (fmt_in, fmt_out) != 1)
- error ("nnFormat error : '%s' -> '%s'.nn", fmt_out, fmt_in) ;
- endif
- err = max (abs (data_out - data_in)) ;
- if (err > 1e-7)
- error ("err : %gn", err) ;
- endif
- printf ("ok") ;
- unlink (filename) ;