Hello, what about inflate / decompress ?

[Maxzor]

Various compression algorithms allow to inflate only passing in the uncompressed size, would be awesome to have it in kaitai.

I am dealing with git packfiles : they are pretty classical bundles of zlib blobs.
The annoying thing is that git stores in these pack files, as a blob header, only the inflated / decompressed size :
deserializing from kaitai needs a dependency on zlib or a simultaneous parsing of the sibling external index file which has bundle offsets.

P.S. : how can I help?

[KOLANICH]

1. What is your language?
2. AFAIK inflating doesn't require providing inflated steream size
3. if your lang is python and you need any additional knobs, see https://github.com/KOLANICH/kaitai_compress/blob/python_fixes/python/kaitai/compress/algorithms/zlib.py if it has what you need

[Maxzor]

I have no target language for now, and am only working through the community-run web-IDE

[Maxzor]

I don't see how you could inflate without providing an inflated nor a deflated stream size?

[KOLANICH]

I don't see how you could inflate without providing an inflated nor a deflated stream size?

Deflated stream size is always provided. In order to process to work blob size must be known.