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decrunch

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decrunch is a Python wrapper around crunch's decompressor.

Setup

Usage

import decrunch

with open("example.crn", "rb") as f:
	buf = f.read()

fi = decrunch.File(buf)
tex_info = fi.info()

for level in range(tex_info["levels"]):
	print("Level info %i: %r" % (level, fi.info(level)))

with open("out.bc1", "wb") as f:
	f.write(fi.decode_level(0))

Further image decoding requires a DXTn decompressor, such as the one that can be found in Pillow as bcn.

License

The full license text is available in the LICENSE file. See crunch/license.txt for the license of files in the crunch/ subdirectory.

The files in crunch/ are an unaltered subset of the original code; the entirety of crunch may be obtained at https://github.com/BinomialLLC/crunch.