def __init__(self):
gr.sync_block.__init__(self,
name="dab_sync",
in_sig=[numpy.complex64],
out_sig=[numpy.complex64])
self.sample_rate = 2048000
self.step = 1
self.dp = parameters.dab_parameters(1, self.sample_rate)
self.prs = make_prs.modulate_prs(self.sample_rate, True)
self.frame_length = int(self.sample_rate * 96e-3)
self.prs_len = len(self.prs)
print "PRS length", self.prs_len
self.correlator = correlate.Correlator(self.prs, self.sample_rate)
self.P = 0.2 * 3
self.I = 0.2 * 3
self.fract = 1000
self.integer_offset = 0
self.fract_offset = 0
self.state = INIT
self.set_history(self.prs_len + 1)
def init(self):
self.sample_rate = 2048000
self.step = 1
self.dp = parameters.dab_parameters(1, self.sample_rate)
self.prs = make_prs.modulate_prs(self.sample_rate, True)
self.frame_length = int(self.sample_rate * 96e-3)
self.prs_len = len(self.prs)
self.P = 0.2 * 3
self.I = 0.2 * 3
self.fract = 1000
self.integer_offset = 0
self.fract_offset = 0
self.state = get_samples
self.get_samples_count = self.frame_length
self.next_state = find_start
])
sample_rate = 2048000
sample_type = 'c32'
step = 4
multi_starts = []
for opt, arg in options:
if opt in ('-r', '--rate'):
sample_rate = int(arg)
if opt in ('-f', '--format'):
sample_type = arg
dp = parameters.dab_parameters(1, sample_rate)
prs = make_prs.modulate_prs(sample_rate, True)
frame_length = int(sample_rate * 96e-3)
for pair in remainder:
filename = pair.split()[0]
skip_frames = float(pair.split()[1])
f = open(filename, "rb")
reader = iq.IQReader(f, sample_type)
reader.skip(int(frame_length * skip_frames), 0)
signal, integer_sample_offset, fract_sample_offset = reader.read(
count=frame_length)
#start = 0
#while start == 0: