Add file, tests/vorbis_test.c and hook into build.

tests/Makefile.am

@@ -12,7 +12,8 @@ noinst_PROGRAMS = sfversion floating_point_test write_read_test \
 	pcm_test headerless_test pipe_test benchmark header_test misc_test \
 	raw_test string_test open_fail_test multi_file_test dither_test \
 	scale_clip_test win32_test fix_this aiff_rw_test virtual_io_test \
-	locale_test largefile_test win32_ordinal_test ogg_test $(CPP_TEST)
+	locale_test largefile_test win32_ordinal_test ogg_test vorbis_test \
+	$(CPP_TEST)
 
 SNDFILEDIR = ../src
 INCLUDES = -I$(srcdir)/$(SNDFILEDIR)
@@ -112,6 +113,9 @@ virtual_io_test_LDADD = $(SNDFILEDIR)/libsndfile.la
 ogg_test_SOURCES = ogg_test.c utils.c
 ogg_test_LDADD = $(SNDFILEDIR)/libsndfile.la
 
+vorbis_test_SOURCES = vorbis_test.c utils.c
+vorbis_test_LDADD = $(SNDFILEDIR)/libsndfile.la
+
 win32_test_SOURCES = win32_test.c
 win32_test_LDADD =
 
@@ -289,8 +293,9 @@ wve-tests: lossy_comp_test
 	@echo "  `./sfversion` passed tests on WVE files."
 	@echo "----------------------------------------------------------------------"
 
-vorbis-tests: lossy_comp_test ogg_test
+vorbis-tests: lossy_comp_test ogg_test vorbis_test
 	./ogg_test
+	./vorbis_test
 	./lossy_comp_test ogg_vorbis
 	./string_test ogg
 	@echo "----------------------------------------------------------------------"

tests/vorbis_test.c

@@ -0,0 +1,93 @@
+/*
+** 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 General Public License as published by
+** the Free Software Foundation; either version 2 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 General Public License for more details.
+**
+** You should have received a copy of the GNU 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.
+*/
+
+#include "sfconfig.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <math.h>
+
+#include	<sndfile.h>
+
+#include	"utils.h"
+#include	"generate.h"
+#include	"dft_cmp.h"
+
+#define	SAMPLE_RATE		44100
+
+static inline float
+max_float (float a, float b)
+{	return a > b ? a : b ;
+} /* max_float */
+
+static void
+vorbis_test (void)
+{	static float float_data [DFT_DATA_LENGTH] ;
+	const char * filename = "vorbis.oga" ;
+	SNDFILE * file ;
+	SF_INFO sfinfo ;
+	float max_abs = 0.0 ;
+	unsigned k ;
+
+	print_test_name ("vorbis_test", filename) ;
+
+	/* Generate float data. */
+	gen_windowed_sine_float (float_data, ARRAY_LEN (float_data), 0.95) ;
+
+	/* Set up output file type. */
+	memset (&sfinfo, 0, sizeof (sfinfo)) ;
+	sfinfo.format = SF_FORMAT_OGG | SF_FORMAT_VORBIS ;
+	sfinfo.channels = 1 ;
+	sfinfo.samplerate = SAMPLE_RATE ;
+
+	/* Write the output file. */
+	file = test_open_file_or_die (filename, SFM_WRITE, &sfinfo, SF_FALSE, __LINE__) ;
+	test_write_float_or_die (file, 0, float_data, ARRAY_LEN (float_data), __LINE__) ;
+	sf_close (file) ;
+
+	memset (float_data, 0, sizeof (float_data)) ;
+
+	/* Read the file back in again. */
+	memset (&sfinfo, 0, sizeof (sfinfo)) ;
+	file = test_open_file_or_die (filename, SFM_READ, &sfinfo, SF_FALSE, __LINE__) ;
+	test_read_float_or_die (file, 0, float_data, ARRAY_LEN (float_data), __LINE__) ;
+	sf_close (file) ;
+
+	for (k = 0 ; k < ARRAY_LEN (float_data) ; k ++)
+		max_abs = max_float (max_abs, fabs (float_data [k])) ;
+
+	if (max_abs > 1.0)
+	{	printf ("\n\n   max_abs : %f\n\n", max_abs) ;
+		exit (1) ;
+		} ;
+
+	puts ("ok") ;
+	unlink (filename) ;
+} /* vorbis_test */
+
+
+int
+main (void)
+{
+	vorbis_test () ;
+
+	return 0 ;
+} /* main */