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#include <errno.h>
#include <fcntl.h>
#include <poll.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include "sndio.h"
#define BUFSZ 0x1000
unsigned char buf[BUFSZ];
struct sio_par par;
char *xstr[] = SIO_XSTRINGS;
long long pos = 0;
int rlat = 0;
void
cb(void *addr, int delta)
{
pos += delta;
rlat += delta;
fprintf(stderr,
"cb: delta = %+7d, rlat = %+7d, pos = %+7lld\n",
delta, rlat, pos);
}
void
usage(void) {
fprintf(stderr, "usage: rec [-r rate] [-c nchan] [-e enc]\n");
}
int
main(int argc, char **argv) {
int ch;
struct sio_hdl *hdl;
ssize_t n;
/*
* defaults parameters
*/
sio_initpar(&par);
par.sig = 1;
par.bits = 16;
par.rchan = 2;
par.rate = 44100;
par.bufsz = 0x10000;
while ((ch = getopt(argc, argv, "r:c:e:b:x:")) != -1) {
switch(ch) {
case 'r':
if (sscanf(optarg, "%u", &par.rate) != 1) {
fprintf(stderr, "%s: bad rate\n", optarg);
exit(1);
}
break;
case 'c':
if (sscanf(optarg, "%u", &par.rchan) != 1) {
fprintf(stderr, "%s: channels number\n", optarg);
exit(1);
}
break;
case 'e':
if (!sio_strtoenc(&par, optarg)) {
fprintf(stderr, "%s: unknown encoding\n", optarg);
exit(1);
}
break;
case 'x':
for (par.xrun = 0;; par.xrun++) {
if (par.xrun == sizeof(xstr) / sizeof(char *)) {
fprintf(stderr,
"%s: bad xrun mode\n", optarg);
exit(1);
}
if (strcmp(xstr[par.xrun], optarg) == 0)
break;
}
break;
default:
usage();
exit(1);
break;
}
}
hdl = sio_open(NULL, SIO_REC, 0);
if (hdl == NULL) {
fprintf(stderr, "sio_open() failed\n");
exit(1);
}
sio_onmove(hdl, cb, NULL);
if (!sio_setpar(hdl, &par)) {
fprintf(stderr, "sio_setpar() failed\n");
exit(1);
}
if (!sio_getpar(hdl, &par)) {
fprintf(stderr, "sio_getpar() failed\n");
exit(1);
}
if (!sio_start(hdl)) {
fprintf(stderr, "sio_start() failed\n");
exit(1);
}
for (;;) {
n = sio_read(hdl, buf, BUFSZ);
if (n == 0) {
fprintf(stderr, "sio_write: failed\n");
exit(1);
}
rlat -= n / (int)(par.bps * par.rchan);
if (write(STDOUT_FILENO, buf, n) < 0) {
perror("stdout");
exit(1);
}
}
sio_close(hdl);
return 0;
}
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