#include <stdio.h>
#include <stdlib.h>
#include <wfdb/wfdb.h>
int main()
{
WFDB_Signal sigIn = 0;
FILE *stream; // need a pointer to FILE for the stream
float dblIn; // need an int to hold a single character
char answer[32], record[8], directory[100], inputFile[100];
int i; int nsig = 1; //I only want one signal
long nsamp, t;
double freq = 0;
char **filename, **description, **units;
WFDB_Sample *v;
WFDB_Siginfo *s;
(void)printf("the program is running\n"); //prints on the command line
// ********************************************************** start example 8
do {
printf("Choose a record name [up to 6 characters]: ");
fgets(record, 8, stdin); record[strlen(record)-1] = '\0';
} while (newheader(record) < 0);
s = (WFDB_Siginfo *)malloc(nsig * sizeof(WFDB_Siginfo));
v = (WFDB_Sample *)malloc(nsig * sizeof(WFDB_Sample));
filename = (char **)malloc(nsig * sizeof(char *));
description = (char **)malloc(nsig * sizeof(char *));
units = (char **)malloc(nsig * sizeof(char *));
if (s == NULL || v == NULL || filename == NULL ||
description == NULL || units == NULL) {
fprintf(stderr, "insufficient memory\n");
exit(1);
}
for (i = 0; i < nsig; i++) {
if ((filename[i] = (char *)malloc(32)) == NULL ||
(description[i] = (char *)malloc(32)) == NULL ||
(units[i] = (char *)malloc(32)) == NULL) {
fprintf(stderr, "insufficient memory\n");
exit(1);
}
}
do { //set sampling frequency
printf("Sampling frequency [Hz per signal, > 0]: ");
fgets(answer, 32, stdin); sscanf(answer, "%lf", &freq);
} while (setsampfreq(freq) < 0);
do {
printf("Length of record (H:M:S): ");
fgets(answer, 32, stdin);
} while ((nsamp = strtim(answer)) < 1L);
printf("Directory for signal files [up to 30 characters]: ");
fgets(directory, 98, stdin);
directory[strlen(directory)-1] = '\0';
printf("Directory for input files [up to 100 characters]: ");
fgets(inputFile, 98, stdin);
inputFile[strlen(inputFile)-1] = '\0';
s[0].fmt = 16; //format 16 is fairly standard; just use that one
sprintf(filename[0], "%s/d.%s", directory, record); //this puts the directory & filname strings together
s[0].fname = filename[0]; //then assign the names into s - the WFDB_Siginfo variable
s[0].group = 0; //then assign this into s - the WFDB_Siginfo variable
for (i = 0; i < nsig; i++) {
s[i].fmt = s[0].fmt; s[i].bsize = 0;
printf("Signal %d description [up to 30 characters]: ", i);
fgets(description[i], 32, stdin);
description[i][strlen(description[i])-1] = '\0';
s[i].desc = description[i];
printf("Signal %d units [up to 20 characters]: ", i);
fgets(units[i], 22, stdin);
units[i][strlen(units[i])-1] = '\0';
s[i].units = (*units[i]) ? units[i] : "mV";
do {
printf(" Signal %d gain [adu/%s]: ", i, s[i].units);
fgets(answer, 32, stdin);
sscanf(answer, "%lf", &s[i].gain);
} while (s[i].gain < 0.);
do {
printf(" Signal %d ADC resolution in bits [8-16]: ", i);
fgets(answer, 32, stdin);
sscanf(answer, "%d", &s[i].adcres);
} while (s[i].adcres < 8 || s[i].adcres > 16);
printf(" Signal %d ADC zero level [adu]: ", i);
fgets(answer, 32, stdin);
sscanf(answer, "%d", &s[i].adczero);
}
if (osigfopen(s, nsig) < nsig) exit(1);
(void)printf("set up s all the way!\n"); //prints on the command line
// ************************************************** end example8
//stream = fopen("c:\\kailua\\puka\\ecg.txt", "r"); //opens ecg.txt for reading in same dir as convertECG.exe
stream = fopen(inputFile, "r");
if (stream == NULL) { printf("fopen returned NULL"); exit(2); }
if (stream == (FILE *)0) { (void)printf("the file errored\n"); exit (1); } //checks if file opened right
else { (void)printf("the file was opened\n"); }
while ((dblIn=getc(stream))!=EOF) {
//dblIn = getc(stream);
fscanf(stream, "%f", &dblIn); //read in dblIn
//(void)printf("dblIn before: %f \n", dblIn); //dblIn is substituted into the string at place %f
*v = physadu(sigIn, dblIn); //call fn: WFDB_Sample physadu(WFDB_Signal s, double v)
//(void)printf("dblIn after: %f \n", dblIn); //dblIn is substituted into the string at place %f
//(void)printf("*v: %f \n", &v);
if (putvec(v) < 0) exit(1);
}
// close the file after you are done with it, if file doesn't close then report and exit */
if ((fclose(stream)) == EOF) {
fprintf(stderr,"Error closing stream. (printed to standard error)\n");
exit(1);
}
(void)newheader(record); //int newheader(char *record) Return: 0=Success -1=Failure: unable to create header file
wfdbquit(); //call fn to exit out of the wfdb library
return EXIT_SUCCESS;
}