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Function Cleanup

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This commit is contained in:
Cort Buffington 2016-09-15 08:04:49 -05:00
parent 8b56a9f45e
commit 223d54d790
1 changed files with 15 additions and 11 deletions
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24
bptc19696.py
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@ -19,18 +19,21 @@ __maintainer__ = 'Cort Buffington, N0MJS'
__email__ = 'n0mjs@me.com' __email__ = 'n0mjs@me.com'
def binary_196(_data): def dec_get_binary_19696(_data):
_data = bytearray(_data) _data = bytearray(_data)
_data = BitArray(_data) _data = BitArray(_data)
return _data[:98] + _data[-98:] return _data[:98] + _data[-98:]
def deint_196(_data): def dec_deinterleave_19696(_data):
deint = BitArray(196) deint = BitArray(196)
for index in range(196): for index in range(196):
deint[index] = _data[(index * 181) % 196] deint[index] = _data[(index * 181) % 196]
return deint return deint
def extract_196(_data): def dec_error_check_19696(_data):
checked = BitArray(196)
def dec_get_data_19696(_data):
databits = BitArray() databits = BitArray()
databits.append(_data[4:12]) databits.append(_data[4:12])
databits.append(_data[16:27]) databits.append(_data[16:27])
@ -51,25 +54,26 @@ if __name__ == '__main__':
# Validation Example # Validation Example
data = '\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x20' data = '\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x20'
bin_data = binary_196(data) bin_data = dec_get_binary_19696(data)
deint_data = deint_196(bin_data) deint_data = dec_deinterleave_19696(bin_data)
ext_data = extract_196(deint_data) #err_corrected = dec_error_check_19696(deint_data)
ext_data = dec_get_data_19696(deint_data)
print('original 33 byte data block:') print('original 33 byte data block:')
print(h(data)) print(h(data))
print(len(data)) print(len(data), 'bytes')
print() print()
print('binary data (discarding sync)') print('binary data (discarding sync)')
print(bin_data.len) print(bin_data.len, 'bits')
print(bin_data) print(bin_data)
print() print()
print('deinterleaved binary data') print('deinterleaved binary data')
print(deint_data.len) print(deint_data.len, 'bits')
print(deint_data) print(deint_data)
print() print()
print('decoded hex data') print('decoded hex data')
print(len(ext_data)*8) print(len(ext_data), 'bytes')
print(h(ext_data)) print(h(ext_data))