libsndfile source files.

[Faustine.git] / interpretor / libsndfile-1.0.25 / Octave / octave_test.m

diff --git a/interpretor/libsndfile-1.0.25/Octave/octave_test.m b/interpretor/libsndfile-1.0.25/Octave/octave_test.m
new file mode 100644 (file)
index 0000000..25a922e
--- /dev/null
+++ b/interpretor/libsndfile-1.0.25/Octave/octave_test.m
@@ -0,0 +1,52 @@
+# Copyright (C) 2007-2011 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 ("\n\nSample rate mismatch : %d -> %d.\n\n", srate_out, srate_in) ;
+       endif
+
+# Octave strcmp return 1 for the same.
+if (strcmp (fmt_in, fmt_out) != 1)
+       error ("\n\nFormat error : '%s' -> '%s'.\n\n", fmt_out, fmt_in) ;
+       endif
+
+err = max (abs (data_out - data_in)) ;
+
+if (err > 1e-7)
+       error ("err : %g\n", err) ;
+       endif
+
+printf ("ok") ;
+
+unlink (filename) ;