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/*
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.
*/
/*
testdouble.c
This program tests double-precision floating-point reading and
writing for the AIFF-C, WAVE, and NeXT .snd 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 double 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};
const int SAMPLE_COUNT = sizeof (samples) / sizeof (samples[0]);
void testdouble (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 double-precision floating-point audio data. */
const int fileFormats[] =
{ AF_FILE_AIFFC, AF_FILE_WAVE, AF_FILE_NEXTSND };
const int fileFormatCount = sizeof (fileFormats) / sizeof (fileFormats[0]);
int i;
for (i=0; i<fileFormatCount; i++)
{
printf("testdouble: testing %s\n",
(char *) afQueryPointer(AF_QUERYTYPE_FILEFMT, AF_QUERY_NAME, fileFormats[i], 0, 0));
testdouble(fileFormats[i]);
}
printf("testdouble passed\n");
exit(EXIT_SUCCESS);
}
void testdouble (int fileFormat)
{
AFfilesetup setup;
AFfilehandle file;
int framesWritten, framesRead;
const int frameCount = SAMPLE_COUNT/2;
double readsamples[SAMPLE_COUNT];
int i;
int sampleFormat, sampleWidth;
setup = afNewFileSetup();
afInitFileFormat(setup, fileFormat);
afInitSampleFormat(setup, AF_DEFAULT_TRACK, AF_SAMPFMT_DOUBLE, 64);
afInitChannels(setup, AF_DEFAULT_TRACK, 2);
ensure(createTemporaryFile("testdouble", &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_DOUBLE && sampleWidth == 64,
"file doesn't contain 64-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();
}
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