mirror of
https://git.FreeBSD.org/ports.git
synced 2024-11-04 22:33:27 +00:00
141 lines
2.5 KiB
C
141 lines
2.5 KiB
C
#include <config.h>
|
|
|
|
/*****************************************************************/
|
|
/*** ***/
|
|
/*** Play out a file on FreeBSD ***/
|
|
/*** (conf/linuxplay.c with changes) ***/
|
|
/*** ***/
|
|
/*****************************************************************/
|
|
|
|
#include <useconfig.h>
|
|
#include <stdio.h>
|
|
#include <math.h>
|
|
#include <errno.h>
|
|
#include <ctype.h>
|
|
|
|
#include <fcntl.h>
|
|
#include <sys/file.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/param.h>
|
|
#include <sys/signal.h>
|
|
|
|
#include <sys/ioctl.h>
|
|
|
|
#include <machine/soundcard.h>
|
|
#include "proto.h"
|
|
#include "getargs.h"
|
|
#include "hplay.h"
|
|
|
|
#define SAMP_RATE 8000
|
|
long samp_rate = SAMP_RATE;
|
|
|
|
/* Audio Parameters */
|
|
|
|
static int dev_fd = -1;
|
|
/* file descriptor for audio device */
|
|
char *dev_file = "/dev/dsp";
|
|
|
|
static int linear_fd = -1;
|
|
|
|
static char *linear_file = NULL;
|
|
|
|
char *prog = "hplay";
|
|
|
|
static int
|
|
audio_open(void)
|
|
{
|
|
dev_fd = open(dev_file, O_WRONLY | O_NDELAY);
|
|
if (dev_fd < 0)
|
|
{
|
|
perror(dev_file);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int
|
|
audio_init(int argc, char *argv[])
|
|
{
|
|
int rate_set = 0;
|
|
int use_audio = 1;
|
|
|
|
prog = argv[0];
|
|
|
|
argc = getargs("freebsd Audio",argc, argv,
|
|
"r", "%d", &rate_set, "Sample rate",
|
|
"a", NULL, &use_audio, "Audio enable",
|
|
NULL);
|
|
|
|
if (help_only)
|
|
return argc;
|
|
|
|
if (use_audio)
|
|
audio_open();
|
|
|
|
if (rate_set)
|
|
samp_rate = rate_set;
|
|
|
|
if (dev_fd > 0)
|
|
{
|
|
ioctl(dev_fd, SNDCTL_DSP_SPEED, &samp_rate);
|
|
printf("Actual sound rate: %ld\n", samp_rate);
|
|
}
|
|
|
|
return argc;
|
|
}
|
|
|
|
void
|
|
audio_term()
|
|
{
|
|
int dummy;
|
|
|
|
/* Close audio system */
|
|
if (dev_fd >= 0)
|
|
{
|
|
ioctl(dev_fd, SNDCTL_DSP_SYNC, &dummy);
|
|
close(dev_fd);
|
|
dev_fd = -1;
|
|
}
|
|
|
|
/* Finish linear file */
|
|
if (linear_fd >= 0)
|
|
{
|
|
ftruncate(linear_fd, lseek(linear_fd, 0L, SEEK_CUR));
|
|
close(linear_fd);
|
|
linear_fd = -1;
|
|
}
|
|
}
|
|
|
|
void
|
|
audio_play(int n, short *data)
|
|
{
|
|
if (n > 0)
|
|
{
|
|
unsigned char *converted = (unsigned char *) malloc(n);
|
|
int i;
|
|
|
|
if (converted == NULL)
|
|
{
|
|
fprintf(stderr, "Could not allocate memory for conversion\n");
|
|
exit(3);
|
|
}
|
|
|
|
for (i = 0; i < n; i++)
|
|
converted[i] = (data[i] - 32768) / 256;
|
|
|
|
if (linear_fd >= 0)
|
|
{
|
|
if (write(linear_fd, converted, n) != n)
|
|
perror("write");
|
|
}
|
|
|
|
if (dev_fd >= 0)
|
|
{
|
|
if (write(dev_fd, converted, n) != n)
|
|
perror("write");
|
|
}
|
|
|
|
free(converted);
|
|
}
|
|
}
|