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#!/usr/bin/env python
#
# Copyright 2014 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# GNU Radio is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# GNU Radio is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Radio; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
from gnuradio import gr, blocks
import fec_swig as fec
import math
class capillary_threaded_decoder(gr.hier_block2):
def __init__(self, decoder_list_0, input_size, output_size):
gr.hier_block2.__init__(
self, "Capillary Threaded Decoder",
gr.io_signature(1, 1, input_size*1),
gr.io_signature(1, 1, output_size*1))
self.decoder_list_0 = decoder_list_0
self.deinterleaves_0 = []
for i in range(int(math.log(len(decoder_list_0), 2))):
for j in range(int(math.pow(2, i))):
self.deinterleaves_0.append(blocks.deinterleave(input_size,
fec.get_decoder_input_size(decoder_list_0[0])))
self.generic_decoders_0 = []
for i in range(len(decoder_list_0)):
self.generic_decoders_0.append(fec.decoder(decoder_list_0[i], input_size, output_size))
self.interleaves_0 = []
for i in range(int(math.log(len(decoder_list_0), 2))):
for j in range(int(math.pow(2, i))):
self.interleaves_0.append(fec.interleave(output_size,
fec.get_decoder_output_size(decoder_list_0[0])))
rootcount = 0
branchcount = 1
for i in range(int(math.log(len(decoder_list_0), 2)) - 1):
for j in range(int(math.pow(2, i))):
self.connect((self.deinterleaves_0[rootcount], 0), (self.deinterleaves_0[branchcount], 0))
self.connect((self.deinterleaves_0[rootcount], 1), (self.deinterleaves_0[branchcount + 1], 0))
rootcount += 1
branchcount += 2
codercount = 0
for i in range(len(decoder_list_0)/2):
self.connect((self.deinterleaves_0[rootcount], 0), (self.generic_decoders_0[codercount], 0))
self.connect((self.deinterleaves_0[rootcount], 1), (self.generic_decoders_0[codercount + 1], 0))
rootcount += 1
codercount += 2
rootcount = 0
branchcount = 1
for i in range(int(math.log(len(decoder_list_0), 2)) - 1):
for j in range(int(math.pow(2, i))):
self.connect((self.interleaves_0[branchcount], 0), (self.interleaves_0[rootcount], 0))
self.connect((self.interleaves_0[branchcount + 1], 0), (self.interleaves_0[rootcount], 1))
rootcount += 1
branchcount += 2
codercount = 0
for i in range(len(decoder_list_0)/2):
self.connect((self.generic_decoders_0[codercount], 0), (self.interleaves_0[rootcount], 0))
self.connect((self.generic_decoders_0[codercount + 1], 0), (self.interleaves_0[rootcount], 1))
rootcount += 1
codercount += 2
if ((len(self.decoder_list_0)) > 1):
self.connect((self, 0), (self.deinterleaves_0[0], 0))
self.connect((self.interleaves_0[0], 0), (self, 0))
else:
self.connect((self, 0), (self.generic_decoders_0[0], 0))
self.connect((self.generic_decoders_0[0], 0), (self, 0))
def get_decoder_list_0(self):
return self.decoder_list_0
def set_decoder_list_0(self, decoder_list_0):
self.decoder_list_0 = decoder_list_0
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