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/***********************************************************
Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
Netherlands.
All Rights Reserved
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation, and that the names of Stichting Mathematisch
Centrum or CWI not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior permission.
STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
******************************************************************/
/* Play ulaw audio data read from stdin */
#define BUFFERSIZE 4000
#ifdef sgi
#define USE_AL
#endif
#ifdef sun
#define USE_SUN
#endif
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <netinet/in.h>
#ifdef USE_AL
#include <audio.h>
#include "libst.h"
long savestate[] = {
AL_OUTPUT_RATE, 0,
};
#endif
#ifdef USE_SUN
#include <stropts.h>
#endif
/* getopt() interface */
extern int optind;
extern char * optarg;
/* Forward */
void cleanup_handler();
/* Globals */
char *progname;
main(argc, argv)
int argc;
char **argv;
{
char buf[BUFFERSIZE];
int n;
int c;
int ifd, ofd;
int sts = 0;
#ifdef USE_AL
short obuf[BUFFERSIZE];
ALport aport;
ALconfig config;
int i;
long pvbuf[2];
#endif
progname = argv[0];
while ((c = getopt(argc, argv, "")) != EOF) {
switch (c) {
case '?':
usage();
}
}
if (optind >= argc) {
ifd = fileno(stdin);
}
else {
if (optind+1 < argc)
usage();
ifd = open(argv[optind], 0);
if (ifd < 0) {
perror(argv[optind]);
exit(1);
}
}
#ifdef USE_AL
/* Fetch the original state */
ALgetparams(AL_DEFAULT_DEVICE, savestate,
sizeof(savestate) / sizeof(long));
/* Set signal handlers */
signal(SIGINT, cleanup_handler);
signal(SIGTERM, cleanup_handler);
/* Set the output sampling rate to 8000 Hz */
pvbuf[0] = AL_OUTPUT_RATE;
pvbuf[1] = AL_RATE_8000;
ALsetparams(AL_DEFAULT_DEVICE, pvbuf, 2L);
/* Configure and open an SGI audio port */
config = ALnewconfig();
ALsetchannels(config, AL_MONO);
ALsetwidth(config, AL_SAMPLE_16);
ALsetqueuesize(config, 16000); /* 2 seconds slop */
aport = ALopenport("radio", "w", config);
if (aport == NULL) {
perror("ALopenport");
exit(1);
}
#else
/* Write to /dev/audio */
if ((ofd = open("/dev/audio", O_WRONLY | O_NDELAY)) < 0) {
perror("/dev/audio");
exit(1);
}
#endif
for (;;) {
n = read(ifd, buf, BUFFERSIZE);
if (n <= 0) {
if (n < 0) {
perror("read");
sts = 1;
}
break;
}
#ifdef USE_AL
for (i = 0; i < n; i++)
obuf[i] = st_ulaw_to_linear(buf[i]);
ALwritesamps(aport, obuf, (long)n);
#else
if (write(ofd, buf, n) != n) {
perror("write");
sts = 1;
break;
}
#endif
}
#ifdef USE_AL
/* Wait until all sound has played */
while(ALgetfilled(aport) > 0) /* still sound to play */
sginap(1); /* sleep for 1/60 of a second */
/* Restore the output sampling rate */
ALsetparams(AL_DEFAULT_DEVICE, savestate,
sizeof(savestate) / sizeof(long));
#endif
exit(sts);
}
usage()
{
fprintf(stderr, "usage: %s [file]\n", progname);
exit(2);
}
#ifdef USE_AL
void cleanup_handler(sig)
int sig;
{
signal(sig, SIG_DFL);
ALsetparams(AL_DEFAULT_DEVICE, savestate,
sizeof(savestate) / sizeof(long));
kill(getpid(), sig);
}
#endif /* USE_AL */
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.