This is mac2snd.c in view mode; [Download] [Up]
/*
convert - by Robert Hood
this program converts some type of mac sound files to NeXT sound files
Don't flame me about the code. It wasn't written to be nice to users,
or be a piece of art.
*/
#include <stdio.h>
main (argc, argv)
int argc;
char *argv [];
{
FILE *input, *output;
char filename [256], outname [256];
int temp,last;
char temp2;
int fast = 0; /* 11 kHz sample rate */
unsigned char ch;
if (argc <= 1)
{
fprintf (stderr, "Usage: convert [-22] filename\n\n");
exit (-1);
}
filename [0] = 0;
for (temp = 1; temp < argc; ++temp)
{
if (strcmp ("-22", argv [temp]) == 0)
{
fast = 1; /* 22 kHz sample rate */
}
else
{
strcpy (filename, argv [temp]);
}
}
if (filename [0] == 0)
{
fprintf (stderr, "You didn't specifiy a filename\n");
exit (-1);
}
if ((input = fopen (filename, "rb")) == 0)
{
perror (filename);
exit (-1);
}
strcpy (outname, filename);
strcat (outname, ".snd");
if ((output = fopen (outname, "wb")) == 0)
{
perror (outname);
exit (-1);
}
temp = 0x2E736E64; /* magic */
fwrite (&temp, 4, 1, output);
temp = 0x0000001C; /* start of sound */
fwrite (&temp, 4, 1, output);
temp = 0x98 + 1; /* end of sound...doesn't seem to matter */
fwrite (&temp, 4, 1, output);
temp = 0x00000003; /* ?? */
fwrite (&temp, 4, 1, output);
temp = 0x00005622; /* sample frequency */
fwrite (&temp, 4, 1, output);
temp = 0x00000001; /* ?? */
fwrite (&temp, 4, 1, output);
temp = 0x00000000; /* space filler? */
fwrite (&temp, 4, 1, output);
temp = 0x00000000; /* space filler? */
fwrite (&temp, 4, 1, output);
last = 0;
while (!feof (input))
{
ch = getc (input);
temp = ch;
temp = (128 - temp) * (int)64;
if (!fast) /* 11 kHz is simulated by averaging the input */
{
last = (last + temp) / 2;
putc ((last >> 8) & 0xFF, output);
putc ((last) & 0xFF, output);
last = temp;
}
putc ((temp >> 8) & 0xFF, output);
putc ((temp) & 0xFF, output);
}
fclose (input);
fclose (output);
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.