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/*
Audio File Library
Copyright (C) 2003, Michael Pruett <michael@68k.org>
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.
*/
/*
twentyfour2.c
This program checks reading and writing a large amount of 24-bit
audio data to an AIFF file.
This program serves as a regression test for a bug in the Audio
File Library in which requesting more than _AF_ATOMIC_NVFRAMES
(1024 frames) from afReadFrames when reading a 24-bit audio file
would result in corrupted audio data.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <audiofile.h>
#define TEST_FILE "/tmp/test.aiffXXXXXX"
char *real_test_file;
#define FRAME_COUNT 10000
void cleanup (void)
{
#ifndef DEBUG
unlink(real_test_file);
#endif
}
void ensure (int condition, const char *message)
{
if (!condition)
{
printf("%s.\n", message);
cleanup();
exit(EXIT_FAILURE);
}
}
int main (void)
{
AFfilehandle file;
AFfilesetup setup;
int32_t *buffer, *readbuffer;
int i;
AFframecount frameswritten, framesread;
setup = afNewFileSetup();
afInitChannels(setup, AF_DEFAULT_TRACK, 1);
afInitSampleFormat(setup, AF_DEFAULT_TRACK, AF_SAMPFMT_TWOSCOMP, 24);
real_test_file = malloc(sizeof(TEST_FILE));
strcpy(real_test_file, TEST_FILE);
int tmp = mkstemp(real_test_file);
file = afOpenFile(real_test_file, "w", setup);
ensure(file != NULL, "could not open test file for writing");
afFreeFileSetup(setup);
buffer = malloc(sizeof (int32_t) * FRAME_COUNT);
ensure(buffer != NULL, "could not allocate buffer for audio data");
readbuffer = malloc(sizeof (int32_t) * FRAME_COUNT);
ensure(readbuffer != NULL, "could not allocate buffer for audio data");
for (i=0; i<FRAME_COUNT; i++)
{
if ((i%3) == 0)
buffer[i] = -i;
else
buffer[i] = i;
}
frameswritten = afWriteFrames(file, AF_DEFAULT_TRACK, buffer, FRAME_COUNT);
ensure(frameswritten == FRAME_COUNT, "incorrect number of frames written");
afCloseFile(file);
/*
Now open file for reading and ensure that the data read
is equal to the data written.
*/
file = afOpenFile(real_test_file, "r", AF_NULL_FILESETUP);
ensure(file != NULL, "could not open test file for reading");
framesread = afReadFrames(file, AF_DEFAULT_TRACK, readbuffer, FRAME_COUNT);
ensure(framesread == FRAME_COUNT, "incorrect number of frames read");
#ifdef DEBUG
for (i=0; i<FRAME_COUNT; i++)
{
if (buffer[i] != readbuffer[i])
{
printf("buffer[%d] = %d, readbuffer[%d] = %d\n",
i, buffer[i], i, readbuffer[i]);
}
}
#endif
ensure(!memcmp(buffer, readbuffer, sizeof (int32_t) * FRAME_COUNT),
"data read does not match data written");
afCloseFile(file);
free(buffer);
free(readbuffer);
cleanup();
return 0;
}
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