Initialization of Reed-Solomon decoder

[daniestevez]

I am looking to add a decoder for FloripaSat-1 to gr-satellites. I am following ngham as a reference to decode the NGHam protocol, but I can't get Reed-Solomon decoding working with some packets transmitted by the satellite.

I have done more investigation and I have seen that in the grs code the Reed-Solomon decoder variables are not initialized properly (see the line below).

grs/libs/ngham/ngham.c

Line 81 in 909f7af

void ngham_init_arrays()

I can't even understand why this isn't segfaulting, since variables such as alpha_to are dereferenced during decode_rs_char().

[daniestevez]

Now I see that since nroots = 0, all the loops in decode_rs_char() are bypassed. This explains why the decoder doesn't segfault.

But my conclusion is that the current decoder is not doing Reed-Solomon decoding.