mirror of
https://github.com/alsa-project/alsa-lib.git
synced 2025-10-29 05:40:25 -04:00
d0facfde2b
- function names are more emacs-like - implemented (format) function - fixed numerous memory-leaks (valgrind is now happy) Ordinary mixer - added the global view (using hdsp names only)
92 lines
1.9 KiB
C
92 lines
1.9 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sched.h>
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#include <errno.h>
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#include <getopt.h>
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#include "../include/mixer_ordinary.h"
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#include <sys/time.h>
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#include <math.h>
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static void help(void)
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{
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printf(
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"Usage: omixer [OPTION]...\n\n"
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"-h,--help help\n"
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"-P,--pname playback PCM device\n"
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"-C,--cname capture PCM device\n"
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);
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}
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int main(int argc, char *argv[])
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{
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struct option long_option[] =
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{
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{"help", 0, NULL, 'h'},
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{"pname", 1, NULL, 'P'},
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{"cname", 1, NULL, 'C'},
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{NULL, 0, NULL, 0},
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};
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int err, morehelp, result = EXIT_SUCCESS;
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char *pname = "default", *cname = "default";
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snd_pcm_t *phandle = NULL, *chandle = NULL;
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sndo_mixer_t *handle;
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morehelp = 0;
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while (1) {
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int c;
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if ((c = getopt_long(argc, argv, "hP:C:", long_option, NULL)) < 0)
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break;
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switch (c) {
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case 'h':
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morehelp++;
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break;
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case 'P':
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pname = strdup(optarg);
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break;
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case 'C':
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cname = strdup(optarg);
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break;
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}
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}
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if (morehelp) {
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help();
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return 0;
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}
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if (strcmp(pname, "-")) {
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err = snd_pcm_open(&phandle, pname, SND_PCM_STREAM_PLAYBACK, 0);
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if (err < 0) {
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fprintf(stderr, "Playback PCM open error: %s\n", snd_strerror(err));
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result = EXIT_FAILURE;
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goto __end;
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}
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}
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if (strcmp(cname, "-")) {
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err = snd_pcm_open(&chandle, cname, SND_PCM_STREAM_CAPTURE, 0);
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if (err < 0) {
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if (phandle)
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snd_pcm_close(phandle);
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fprintf(stderr, "Capture PCM open error: %s\n", snd_strerror(err));
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result = EXIT_FAILURE;
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goto __end;
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}
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}
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err = sndo_mixer_open_pcm(&handle, phandle, chandle, NULL);
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if (err < 0) {
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fprintf(stderr, "mixer open error: %s\n", snd_strerror(err));
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result = EXIT_FAILURE;
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} else {
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sndo_mixer_close(handle);
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}
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__end:
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if (chandle)
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snd_pcm_close(chandle);
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if (phandle)
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snd_pcm_close(phandle);
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snd_config_update_free_global(); /* to keep valgrind happy */
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return result;
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}
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