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@AlD
Created March 27, 2018 21:55
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inf = open('backup.ab', 'rb')
out = open('backup.tar', 'wb')
buf = inf.read(512)
while buf != '':
if buf[:8] == 'TWRP\x00\x00\x00\x00':
print "Skipping %r" % buf[:16]
buf = inf.read(512)
continue
out.write(buf)
buf = inf.read(512)
@AlD
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AlD commented Sep 14, 2021

@DyKey13 The file is expected to be almost the same size. It should be pretty much exactly 16/(512+16)*100 = 3.03 % smaller.
It may help to look at both the input and the output file with a hex editor to understand what's supposed to happen and check whether that's working.

@zai1208
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zai1208 commented Sep 21, 2023

backup.tar is completely empty yet 17.6 gb?

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