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