1  #include <stdio.h>
 2  #include <wfdb/wfdb.h>
 3  #include <wfdb/ecgmap.h>
 4
 5  main(argc, argv)
 6  int argc;
 7  char *argv[];
 8  {
 9      int rr, *rrhist, rrmax;
10      long t;
11      WFDB_Anninfo a;
12      WFDB_Annotation annot;
13      void *calloc();
14
15      if (argc < 3) {
16          fprintf(stderr, "usage: %s annotator record\n", argv[0]);
17          exit(1);
18      }
19      a.name = argv[1]; a.stat = WFDB_READ;
20      if (annopen(argv[2], &a, 1) < 0) exit(2);
21      if ((rrmax = (int)(3*sampfreq(argv[2]))) <= 0) exit(3);
22      if ((rrhist = (int *)calloc(rrmax+1, sizeof(int))) == NULL) {
23          fprintf(stderr, "%s: insufficient memory\n", argv[0]);
24          exit(4);
25      }
26      while (getann(0, &annot) == 0 && !isqrs(annot.anntyp))
27          ;
28      t = annot.time;
29      while (getann(0, &annot) == 0)
30          if (isqrs(annot.anntyp)) {
31              if ((rr = annot.time - t) > rrmax) rr = rrmax;
32              rrhist[rr]++;
33              t = annot.time;
34          }
35      for (rr = 1; rr < rrmax; rr++)
36          printf("%4d %s\n", rrhist[rr], mstimstr((long)rr));
37      printf("%4d %s (or longer)\n", rrhist[rr], mstimstr((long)rr));
38      exit(0);
39  }