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Diffstat (limited to 'gr-fec/python/fec/extended_encoder.py')
-rw-r--r-- | gr-fec/python/fec/extended_encoder.py | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/gr-fec/python/fec/extended_encoder.py b/gr-fec/python/fec/extended_encoder.py new file mode 100644 index 0000000000..50a8891ea5 --- /dev/null +++ b/gr-fec/python/fec/extended_encoder.py @@ -0,0 +1,74 @@ +#!/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 +from threaded_encoder import threaded_encoder +from capillary_threaded_encoder import capillary_threaded_encoder +from bitflip import read_bitlist + +class extended_encoder(gr.hier_block2): + def __init__(self, encoder_obj_list, threading, puncpat=None): + gr.hier_block2.__init__(self, "extended_encoder", + gr.io_signature(1, 1, gr.sizeof_char), + gr.io_signature(1, 1, gr.sizeof_char)) + + self.blocks=[] + self.puncpat=puncpat + + if(type(encoder_obj_list) == list): + if(type(encoder_obj_list[0]) == list): + gr.log.info("fec.extended_encoder: Parallelism must be 1.") + raise AttributeError + else: + # If it has parallelism of 0, force it into a list of 1 + encoder_obj_list = [encoder_obj_list,] + + if fec.get_encoder_input_conversion(encoder_obj_list[0]) == "pack": + self.blocks.append(blocks.pack_k_bits_bb(8)) + + if threading == 'capillary': + self.blocks.append(capillary_threaded_encoder(encoder_obj_list, + gr.sizeof_char, + gr.sizeof_char)) + elif threading == 'ordinary': + self.blocks.append(threaded_encoder(encoder_obj_list, + gr.sizeof_char, + gr.sizeof_char)) + else: + self.blocks.append(fec.encoder(encoder_obj_list[0], + gr.sizeof_char, + gr.sizeof_char)) + + if self.puncpat != '11': + self.blocks.append(fec.puncture_bb(len(puncpat), read_bitlist(puncpat), 0)) + + # Connect the input to the encoder and the output to the + # puncture if used or the encoder if not. + self.connect((self, 0), (self.blocks[0], 0)); + self.connect((self.blocks[-1], 0), (self, 0)); + + # If using the puncture block, add it into the flowgraph after + # the encoder. + for i in range(len(self.blocks) - 1): + self.connect((self.blocks[i], 0), (self.blocks[i+1], 0)); |