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ZStandard Random Access (ZRA) allows random access inside an archive compressed using ZStandard

License: BSD 3-Clause "New" or "Revised" License

CMake 3.09% C++ 96.91%
zstd zstandard random-access compression archive zra

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zra's Issues

Overflow in CalculateHash

Hello great library. Running with sanitizer I had some complain about overflow in CalculateHash.
I think it is because the pointer and size passed are double counting sizeof(FixedHeader)

Substracting it in return CRC:;Calculate(rest, headerSize - sizeof(FixedHeader) does the trick.

Rgds

Updating a Frame Possible?

Hi,

Thanks for this great project, I have been looking for something exactly like this.

I was wondering do you think it would be possible to random access a frame and update the source data in the frame without decompressing the whole file?

Basically I have some very large archives and a small subset of the data in the archive needs to be updated so it would be more efficient to update a frame with random access if possible. Here I can seek the frame but I'm unclear if it's possible to update the frame.

Thanks! Sorry for the weird question.

Quality of compression

Could you make a benchmark or something to see how this compares to other compression algorithms? I find this very interesting

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