1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/*
Audio File Library
Copyright (C) 2001, Silicon Graphics, Inc.
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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
testfloat.c
This program tests floating-point reading and writing for
the AIFF-C, WAVE, NeXT .snd, and IRCAM file formats.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <audiofile.h>
#include "TestUtilities.h"
static char *sTestFileName;
const float samples[] =
{1.0, 0.6, -0.3, 0.95, 0.2, -0.6, 0.9, 0.4, -0.22, 0.125, 0.1, -0.4};
#define SAMPLE_COUNT (sizeof (samples) / sizeof (float))
void testfloat (int fileFormat);
void cleanup (void)
{
if (sTestFileName)
{
unlink(sTestFileName);
free(sTestFileName);
}
}
void ensure (int condition, const char *message)
{
if (!condition)
{
printf("%s.\n", message);
cleanup();
exit(EXIT_FAILURE);
}
}
int main (int argc, char **argv)
{
/* These file formats support floating-point audio data. */
int fileFormatCount = 4;
int fileFormats[] =
{AF_FILE_AIFFC, AF_FILE_WAVE, AF_FILE_NEXTSND, AF_FILE_IRCAM};
char *formatNames[] = {"AIFF-C", "WAVE", "NeXT .snd", "IRCAM"};
int i;
for (i=0; i<fileFormatCount; i++)
{
printf("testfloat: testing %s\n", formatNames[i]);
testfloat(fileFormats[i]);
}
printf("testfloat passed\n");
exit(EXIT_SUCCESS);
}
void testfloat (int fileFormat)
{
AFfilesetup setup;
AFfilehandle file;
int framesWritten, framesRead;
const int frameCount = SAMPLE_COUNT/2;
float readsamples[SAMPLE_COUNT];
int i;
int sampleFormat, sampleWidth;
setup = afNewFileSetup();
afInitFileFormat(setup, fileFormat);
afInitSampleFormat(setup, AF_DEFAULT_TRACK, AF_SAMPFMT_FLOAT, 32);
afInitChannels(setup, AF_DEFAULT_TRACK, 2);
ensure(createTemporaryFile("testfloat", &sTestFileName),
"could not create temporary file");
file = afOpenFile(sTestFileName, "w", setup);
ensure(file != AF_NULL_FILEHANDLE, "could not open file for writing");
afFreeFileSetup(setup);
framesWritten = afWriteFrames(file, AF_DEFAULT_TRACK, samples,
frameCount);
ensure(framesWritten == frameCount, "number of frames written does not match number of frames requested");
ensure(afCloseFile(file) == 0, "error closing file");
file = afOpenFile(sTestFileName, "r", AF_NULL_FILESETUP);
ensure(file != AF_NULL_FILEHANDLE, "could not open file for reading");
ensure(afGetChannels(file, AF_DEFAULT_TRACK) == 2,
"file doesn't have exactly two channels");
afGetSampleFormat(file, AF_DEFAULT_TRACK, &sampleFormat, &sampleWidth);
ensure(sampleFormat == AF_SAMPFMT_FLOAT && sampleWidth == 32,
"file doesn't contain 32-bit floating-point data");
ensure(afGetFileFormat(file, NULL) == fileFormat,
"file format doesn't match format requested");
framesRead = afReadFrames(file, AF_DEFAULT_TRACK, readsamples,
frameCount);
ensure(framesRead == frameCount, "number of frames read does not match number of frames requested");
for (i=0; i<SAMPLE_COUNT; i++)
{
ensure(readsamples[i] == samples[i],
"data written to file doesn't match data read");
}
ensure(afCloseFile(file) == 0, "error closing file");
cleanup();
}
|
