/
basereedsolomon.py
43 lines (38 loc) · 1.73 KB
/
basereedsolomon.py
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import galois as gl
from pathos.multiprocessing import ProcessingPool as Pool
from . import helper
class Base_Reed_Solomon():
def __init__(self, field_size:int, message_length:int, payload_length:int,symbol_size:int,multi_processing,irr_poly=None,debug=True,p=1,):
self.field_size = field_size
if multi_processing:
self.pool = Pool(p)
else:
self.pool = None
if irr_poly ==None:
try:
self.galois_field = gl.GF(field_size**symbol_size)#TODO remove power asap
except LookupError:
print("need to find irreducible polynominal manually")
irreducible_polynominal = gl.irreducible_poly(field_size,symbol_size)
self.galois_field = gl.GF(field_size**symbol_size,irreducible_poly=irreducible_polynominal)
else:
self.galois_field = gl.GF(field_size**symbol_size,irreducible_poly=irr_poly)
self.message_length = message_length
self.payload_length = payload_length
self.two_s = message_length - payload_length
self.helper = helper.Galois_Helper(self.galois_field,self.pool,debug)
self.multi = multi_processing
def convert_to_symbol_array(self,array):
if self.galois_field.degree > 1:
output = []
for i in range(0,len(array)):
output.append(int(self.galois_field.Vector(array[i])))
return output
return array
def symbol_array_to_array(self,array):
if self.galois_field.degree > 1:
output = []
for i in range(0,len(array)):
output.append(self.galois_field(array[i]).vector().tolist())
return output
return array