def main(argv):
nc = len(argv) - 4
if len(argv) < 4:
print "usage:", argv[0], "record start duration [ coefficients ... ]"
sys.exit(1)
if nc < 1: nc = 1
c = [0.] * nc
for i in range(0, nc):
c[i] = float(argv[i+4])
nsig = wfdb.isigopen(argv[1], None, 0)
if nsig < 1: sys.exit(3)
s = wfdb.WFDB_SiginfoArray(nsig)
v = wfdb.WFDB_SampleArray(nsig)
if wfdb.isigopen(argv[1], s.cast(), nsig) != nsig: sys.exit(3)
if wfdb.isigsettime(wfdb.strtim(argv[2])) < 0: sys.exit(4)
nsamp = wfdb.strtim(argv[3])
if nsamp < 1:
print argv[0]+ ": inappropriate value for duration"
sys.exit(5)
if wfdb.osigopen("16l", s.cast(), nsig) != nsig: sys.exit(6)
wfdb.sample(0, 0)
for t in range(0, nsamp):
if not wfdb.sample_valid(): break
for j in range(0, nsig):
vv = 0
for i in range(0, nc):
if c[i] != 0.: vv += c[i] * wfdb.sample(j, t+i)
v[j] = int(vv)
if wfdb.putvec(v.cast()) < 0: break
wfdb.newheader("out")
wfdb.wfdbquit()
def main(argv):
nsamp = 1000
if len(argv) < 2:
print "usage:", argv[0], "record"
sys.exit(1)
nsig = wfdb.isigopen(argv[1], None, 0)
if nsig <= 0: sys.exit(2)
s = wfdb.WFDB_SiginfoArray(nsig)
vin = wfdb.WFDB_SampleArray(nsig)
vout = wfdb.WFDB_SampleArray(nsig)
if wfdb.isigopen(argv[1], s.cast(), nsig) != nsig: sys.exit(2)
if wfdb.osigopen("8l", s.cast(), nsig) <= 0: sys.exit(3)
while nsamp > 0 and wfdb.getvec(vin.cast()) > 0:
nsamp -= 1
for i in range(0, nsig): vout[i] -= vin[i]
if wfdb.putvec(vout.cast()) < 0: break
for i in range(0, nsig): vout[i] = vin[i]
wfdb.newheader("dif")
wfdb.wfdbquit()
