examples/utils.c

   1
   2 #include "aubio.h"
   3
   4 #ifndef JACK_SUPPORT
   5 #define JACK_SUPPORT 0
   6 #endif
   7
   8 #include <getopt.h>
   9 #include <stdlib.h>
  10 #include <stdio.h>
  11 #include <string.h>
  12 #include <math.h> /* for isfinite */
  13 #include "utils.h"
  14
  15 /* not supported yet */
  16 #ifdef LADCCA_SUPPORT
  17 #include <ladcca/ladcca.h>
  18 cca_client_t * aubio_cca_client;
  19 #endif /* LADCCA_SUPPORT */
  20
  21
  22 /* badly redeclare some things */
  23 aubio_onsetdetection_type type_onset;
  24 smpl_t threshold;
  25 smpl_t averaging;
  26 const char * prog_name;
  27
  28 void usage (FILE * stream, int exit_code)
  29 {
  30         fprintf(stream, "usage: %s [ options ] \n", prog_name);
  31         fprintf(stream,
  32                         "       -j      --jack          Use Jack.\n"
  33                         "       -o      --output        Output type.\n"
  34                         "       -i      --input         Input type.\n"
  35                         "       -h      --help          Display this message.\n"
  36                         "       -v      --verbose       Print verbose message.\n"
  37                         );
  38         exit(exit_code);
  39 }
  40
  41 int parse_args (int argc, char **argv) {
  42         const char *options = "hvjo:i:O:t:a";
  43         int next_option;
  44         struct option long_options[] =
  45         {
  46                 {"help",                0, NULL, 'h'},
  47                 {"verbose",     0, NULL, 'v'},
  48                 {"jack",                0, NULL, 'j'},
  49                 {"output",      0, NULL, 'o'},
  50                 {"input",       0, NULL, 'i'},
  51                 {"onset",       0, NULL, 'O'},
  52                 {"threshold",   0, NULL, 't'},
  53                 {"averaging",   0, NULL, 'a'},
  54                 {NULL,                  0, NULL, 0}
  55         };
  56         prog_name = argv[0];
  57         if( argc < 1 ) {
  58                 usage (stderr, 1);
  59                 return -1;
  60         }
  61         do {
  62                 next_option = getopt_long (argc, argv, options,
  63                                                                         long_options, NULL);
  64                 switch (next_option) {
  65                         case 'o':
  66                                 output_filename = optarg;
  67                                 break;
  68                         case 'i':
  69                                 input_filename = optarg;
  70                                 break;
  71                         case 'h':       /* help */
  72                                 usage (stdout, 0);
  73                                 return -1;
  74                         case 'v':               /* verbose */
  75                                 verbose = 1;
  76                                 break;
  77                         case 'j':               /* verbose */
  78                                 usejack = 1;
  79                                 break;
  80       case 'O':   /*onset type*/
  81         if (strcmp(optarg,"energy") == 0)
  82           type_onset = energy;
  83         else if (strcmp(optarg,"specdiff") == 0)
  84           type_onset = specdiff;
  85         else if (strcmp(optarg,"hfc") == 0)
  86           type_onset = hfc;
  87         else if (strcmp(optarg,"complexdomain") == 0)
  88           type_onset = complexdomain;
  89         else if (strcmp(optarg,"phase") == 0)
  90           type_onset = phase;
  91         else {
  92           debug("could not get onset type.\n");
  93           abort();
  94         }
  95         break;
  96       case 't':   /* threshold value for onset */
  97         threshold = (smpl_t)atof(optarg);
  98         /*
  99         if (!isfinite(threshold)) {
 100           debug("could not get threshold.\n");
 101           abort();
 102         }
 103         */
 104         break;
 105       case 'a':
 106         averaging = 1;
 107         break;
 108                         case '?':       /* unknown options */
 109                                 usage(stderr, 1);
 110         break;
 111                         case -1:                /* done with options */
 112                                 break;
 113                         default:                /*something else unexpected */
 114                                 abort ();
 115                 }
 116         }
 117         while (next_option != -1);
 118
 119         if (input_filename != NULL) {
 120                 errmsg ("Input file : %s\n", input_filename );
 121         } else if (input_filename != NULL && output_filename != NULL) {
 122                 errmsg ("Input file : %s\n", input_filename );
 123                 errmsg ("Output file : %s\n", output_filename );
 124         } else {
 125                 if (JACK_SUPPORT)
 126                 {
 127                         errmsg ("Jack input output\n");
 128                         usejack = 1;
 129                 } else {
 130                         errmsg ("Error: Could not switch to jack mode\n   aubio was compiled without jack support\n");
 131                         exit(1);
 132                 }
 133         }
 134         return 0;
 135 }
 136