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fix ecc indentation

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Roman Zeyde
2014-07-19 15:56:25 +03:00
parent 067cbf8428
commit c103460e05
1 changed files with 6 additions and 2 deletions
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8
ecc.py
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@@ -10,6 +10,7 @@ BLOCK_SIZE = 255
LEN_FMT = '<I' LEN_FMT = '<I'
def encode(data, nsym=DEFAULT_NSYM): def encode(data, nsym=DEFAULT_NSYM):
log.debug('Encoded {} bytes'.format(len(data))) log.debug('Encoded {} bytes'.format(len(data)))
data = bytearray(struct.pack(LEN_FMT, len(data)) + data) data = bytearray(struct.pack(LEN_FMT, len(data)) + data)
@@ -24,6 +25,7 @@ def encode(data, nsym=DEFAULT_NSYM):
return enc return enc
def decode(data, nsym=DEFAULT_NSYM): def decode(data, nsym=DEFAULT_NSYM):
data = bytearray(data) data = bytearray(data)
dec = bytearray() dec = bytearray()
@@ -31,7 +33,8 @@ def decode(data, nsym=DEFAULT_NSYM):
chunk = data[i:i+BLOCK_SIZE] chunk = data[i:i+BLOCK_SIZE]
try: try:
dec.extend(rs_correct_msg(chunk, nsym)) dec.extend(rs_correct_msg(chunk, nsym))
log.debug('Decoded %d blocks = %d bytes', (i+1) / BLOCK_SIZE, len(dec)) log.debug('Decoded %d blocks = %d bytes',
(i+1) / BLOCK_SIZE, len(dec))
except ReedSolomonError as e: except ReedSolomonError as e:
log.debug('Decoding stopped: %s', e) log.debug('Decoding stopped: %s', e)
break break
@@ -41,7 +44,8 @@ def decode(data, nsym=DEFAULT_NSYM):
overhead = (i - len(dec)) / float(i) overhead = (i - len(dec)) / float(i)
blocks = i / BLOCK_SIZE blocks = i / BLOCK_SIZE
log.debug('Decoded %d blocks = %d bytes (ECC overhead %.1f%%)', blocks, len(dec), overhead * 100) log.debug('Decoded %d blocks = %d bytes (ECC overhead %.1f%%)',
blocks, len(dec), overhead * 100)
n = struct.calcsize(LEN_FMT) n = struct.calcsize(LEN_FMT)
payload, length = dec[n:], dec[:n] payload, length = dec[n:], dec[:n]