transparency.c
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/*
Audio File Library
Copyright 1998-2000, 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.
*/
/*
transparency.c
This program does a small sanity check on file writing
operations.
If this program fails, something in the Audio File Library is broken.
*/
#include <stdio.h>
#include <string.h>
#ifdef __USE_SGI_HEADERS__
#include <dmedia/audiofile.h>
#else
#include <audiofile.h>
#endif
void usage (void)
{
fprintf(stderr, "usage: transparency file1 file2 [format]\n");
fprintf(stderr, "where format is one of aiff, aifc, next, or wave\n");
fprintf(stderr, "(format defaults to aiff.)\n");
exit(0);
}
int main (int argc, char **argv)
{
AFfilehandle outfile;
AFfilesetup outfilesetup;
unsigned short buffer[] = {0x1122, 0x3344, 0x5566, 0x7788,
0x99aa, 0xbbcc, 0xddee, 0xff00};
int format = AF_FILE_AIFF;
AFframecount result;
if (argc < 3)
usage();
if (argc > 3)
{
if (!strcmp(argv[3], "aiff"))
format = AF_FILE_AIFF;
else if (!strcmp(argv[3], "aifc"))
format = AF_FILE_AIFFC;
else if (!strcmp(argv[3], "next"))
format = AF_FILE_NEXTSND;
else if (!strcmp(argv[3], "wave"))
format = AF_FILE_WAVE;
else
{
fprintf(stderr, "%s: invalid format.\n", argv[3]);
usage();
}
}
outfilesetup = afNewFileSetup();
afInitFileFormat(outfilesetup, format);
outfile = afOpenFile(argv[1], "w", outfilesetup);
if (outfile == AF_NULL_FILEHANDLE)
{
fprintf(stderr, "could not open file %s for writing\n", argv[1]);
exit(-1);
}
result = afWriteFrames(outfile, AF_DEFAULT_TRACK, buffer, 2);
if (result != 2)
{
fprintf(stderr, "afWriteFrames did not return expected result\n");
fprintf(stderr, "got %ld, expected 2\n", result);
exit(-1);
}
afWriteFrames(outfile, AF_DEFAULT_TRACK, buffer + 4, 2);
if (result != 2)
{
fprintf(stderr, "afWriteFrames did not return expected result\n");
fprintf(stderr, "got %ld, expected 2\n", result);
exit(-1);
}
afCloseFile(outfile);
outfile = afOpenFile(argv[2], "w", outfilesetup);
if (outfile == AF_NULL_FILEHANDLE)
{
fprintf(stderr, "could not open file %s for writing\n", argv[1]);
exit(-1);
}
result = afWriteFrames(outfile, AF_DEFAULT_TRACK, buffer, 4);
if (result != 4)
{
fprintf(stderr, "afWriteFrames did not return expected result\n");
fprintf(stderr, "got %ld, expected 4\n", result);
exit(-1);
}
afCloseFile(outfile);
afFreeFileSetup(outfilesetup);
return 0;
}