test/omixer.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <sched.h>
   5 #include <errno.h>
   6 #include <getopt.h>
   7 #include "../include/mixer_ordinary.h"
   8 #include <sys/time.h>
   9 #include <math.h>
  10
  11 static void help(void)
  12 {
  13         printf(
  14 "Usage: omixer [OPTION]...\n\n"
  15 "-h,--help      help\n"
  16 "-P,--pname     playback PCM device\n"
  17 "-C,--cname     capture PCM device\n"
  18 );
  19 }
  20
  21 int main(int argc, char *argv[])
  22 {
  23         struct option long_option[] =
  24         {
  25                 {"help", 0, NULL, 'h'},
  26                 {"pname", 1, NULL, 'P'},
  27                 {"cname", 1, NULL, 'C'},
  28                 {NULL, 0, NULL, 0},
  29         };
  30         int err, morehelp, result = EXIT_SUCCESS;
  31         char *pname = "default", *cname = "default";
  32         snd_pcm_t *phandle = NULL, *chandle = NULL;
  33         sndo_mixer_t *handle;
  34
  35         morehelp = 0;
  36         while (1) {
  37                 int c;
  38                 if ((c = getopt_long(argc, argv, "hP:C:", long_option, NULL)) < 0)
  39                         break;
  40                 switch (c) {
  41                 case 'h':
  42                         morehelp++;
  43                         break;
  44                 case 'P':
  45                         pname = strdup(optarg);
  46                         break;
  47                 case 'C':
  48                         cname = strdup(optarg);
  49                         break;
  50                 }
  51         }
  52
  53         if (morehelp) {
  54                 help();
  55                 return 0;
  56         }
  57
  58         if (strcmp(pname, "-")) {
  59                 err = snd_pcm_open(&phandle, pname, SND_PCM_STREAM_PLAYBACK, 0);
  60                 if (err < 0) {
  61                         fprintf(stderr, "Playback PCM open error: %s\n", snd_strerror(err));
  62                         result = EXIT_FAILURE;
  63                         goto __end;
  64                 }
  65         }
  66
  67         if (strcmp(cname, "-")) {
  68                 err = snd_pcm_open(&chandle, cname, SND_PCM_STREAM_CAPTURE, 0);
  69                 if (err < 0) {
  70                         if (phandle)
  71                                 snd_pcm_close(phandle);
  72                         fprintf(stderr, "Capture PCM open error: %s\n", snd_strerror(err));
  73                         result = EXIT_FAILURE;
  74                         goto __end;
  75                 }
  76         }
  77
  78         err = sndo_mixer_open_pcm(&handle, phandle, chandle, NULL);
  79         if (err < 0) {
  80                 fprintf(stderr, "mixer open error: %s\n", snd_strerror(err));
  81                 result = EXIT_FAILURE;
  82         } else {
  83                 sndo_mixer_close(handle);
  84         }
  85       __end:
  86         if (chandle)
  87                 snd_pcm_close(chandle);
  88         if (phandle)
  89                 snd_pcm_close(phandle);
  90         snd_config_update_free_global(); /* to keep valgrind happy */
  91         return result;
  92 }