[Libreoffice-bugs] [Bug 137308] import newer / zstandard as zip-format

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=137308

Michael Meeks <michael.meeks at collabora.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|use of fast zstandard as    |import newer / zstandard as
                   |zip-format in odt           |zip-format
           Keywords|                            |difficultyInteresting,
                   |                            |easyHack, skillCpp
     Ever confirmed|0                           |1
         Resolution|WONTFIX                     |---
             Status|RESOLVED                    |REOPENED

--- Comment #3 from Michael Meeks <michael.meeks at collabora.com> ---
Let me re-open this and turn it into an easy hack.

Clearly we should be able to import files in newer ZIP formats such as
zstandard.

My hope would be that libzip would (eventually) be able to do that for us; but
anyhow - the inflator code is here - it explictly uses inflate.

https://git.libreoffice.org/core/+/refs/heads/master/package/source/zipapi/Inflater.cxx

Possibly we will want to include a new external module for zstd (I guess) to
re-use that code - the BSD seems fine, and to add that to readlicense_oo.

Beyond that I think we'll want read support widely deployed for some years -
before getting this into the standard, and then some more years before turning
it on by default.

Contributions much appreciated =)

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