Hey list,
'extended_encoder' currently ignores whatever 'get_output_conversion'
returns. If you use FEC's extended encoder and you reimplement
'get_output_conversion', it gets ignored. A quick look at the
available encoders in gr-fec shows, that none of them actually uses
that method. Though the docs state that
* If 'packed_bits', the block produces packed bits and the
* wrapper should unpack these (using, for instance,
* gr::block::unpack_k_bits_bb(8)).
Thus I created a little patch which would fix that.
Also I just sent a pull request for that.
Johannes
>From a20761005e60335da2cb78104a6f1c4b576aa3c2 Mon Sep 17 00:00:00 2001
From: Johannes Demel <uf...@student.kit.edu>
Date: Thu, 18 Jun 2015 20:13:52 +0200
Subject: [PATCH] fec: extended encoder now appends unpack_k_bits(8) block
after encoder to satisfy get_output_conversion() = unpack behaviour
---
gr-fec/python/fec/extended_encoder.py | 3 +++
1 file changed, 3 insertions(+)
diff --git a/gr-fec/python/fec/extended_encoder.py b/gr-fec/python/fec/extended_encoder.py
index 50a8891..1c6da0e 100644
--- a/gr-fec/python/fec/extended_encoder.py
+++ b/gr-fec/python/fec/extended_encoder.py
@@ -60,6 +60,9 @@ class extended_encoder(gr.hier_block2):
gr.sizeof_char,
gr.sizeof_char))
+ if fec.get_encoder_output_conversion(encoder_obj_list[0]) == "packed_bits":
+ self.blocks.append(blocks.packed_to_unpacked_bb(1, gr.GR_MSB_FIRST))
+
if self.puncpat != '11':
self.blocks.append(fec.puncture_bb(len(puncpat), read_bitlist(puncpat), 0))
--
1.9.1
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