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Add uncompressed chunk padding #29

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Aug 12, 2021
Merged

Add uncompressed chunk padding #29

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5 changes: 5 additions & 0 deletions pyaff4/aff4_image.py
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Original file line number Diff line number Diff line change
Expand Up @@ -82,6 +82,11 @@ def read(self, _):
self.bevy_length += compressedLen
return compressed_chunk
else:
# On final chunks that aren't compressed, pad if they are less than chunk_size
# so that at decompression we won't try to decompress an already decompressed chunk.
if chunkLen < self.owner.chunk_size:
padding = self.owner.chunk_size - chunkLen
chunk += b"\x00" * padding
self.bevy_index.append((self.bevy_length, self.owner.chunk_size))
self.bevy_length += self.owner.chunk_size
return chunk
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