[gdal-dev] Fork Yeah!

Aaron Boxer boxerab at gmail.com
Wed Feb 3 11:28:06 PST 2016


Dear GDAL Developers,

I am developing a new open source JPEG 2000 toolkit, based on OpenJPEG.

It is a drop-in replacement for OpenJPEG, but features:

- fast precinct-level decode
- lower memory usage
- better performance - currently it is roughly 1/3 the perf of Kakadu,
(tested on windows), and I am hoping to get it down to around 1/2

I was originally hoping to merge these changes into OpenJPEG. For a number
of reasons, I decided to start a new project instead.  One of my main
motivations is the fact that  OpenJPEG is a reference implementation,
designed for correctness and portability. My main interest is performance.

I have ported the code to C++14, so developers get access to all of the
modern C++ goodness such as class hierarchies, lambdas, threading library,
exceptions, standard template library, etc.

Gone is support for older compilers, including VS 2010.

The code is licensed under the AGPL, to ensure that all code modifications
get contributed back to the community.

It you find this useful, please visit

https://github.com/GrokImageCompression/ronin

For those who need a more permissive license, or who prefer using the
reference implementation, there is always good old OpenJPEG.

Kind Regards,
Aaron
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