Hi Even
abidiff tells me:
* Incompatible ABI changes between openjpeg2-2.1.2-4.fc26.x86_64.rpm and
openjpeg2-2.2.0-1.fc26.x86_64.rpm. ABI comparison took 0.45 second(s). Please
review them.
================ changes of 'libopenjp2.so.2.1.2'===============
Functions changes summary: 9 Removed, 5 Changed, 31 Added functions
Variables changes summary: 0 Removed, 0 Changed, 0 Added variable
9 Removed functions:
'function void opj_mqc_create()' {opj_mqc_create}
'function OPJ_INT32 opj_mqc_decode()' {opj_mqc_decode}
'function void opj_mqc_destroy()' {opj_mqc_destroy}
'function OPJ_UINT32 opj_mqc_restart_enc()' {opj_mqc_restart_enc}
'function void opj_raw_create()' {opj_raw_create}
'function OPJ_UINT32 opj_raw_decode()' {opj_raw_decode}
'function void opj_raw_destroy()' {opj_raw_destroy}
'function void opj_raw_init_dec(OPJ_BYTE*, OPJ_UINT32)'
{opj_raw_init_dec}
'function OPJ_UINT32 opj_raw_numbytes()' {opj_raw_numbytes}
Is the ABI really 100% compatible?
Thanks
Sandro
On 10.08.2017 09:17, Even Rouault wrote:
Hi,
For those working with JPEG2000, see below
Even
---------- Forwarded Message ----------
Subject: [OpenJPEG] OpenJPEG 2.2.0 is out ! Faster and safer.
Date: jeudi 10 août 2017, 04:58:13 CEST
From: Antonin - OpenJPEG <i...@openjpeg.org>
To: openj...@googlegroups.com <openj...@googlegroups.com>
Hi folks,
OpenJPEG 2.2.0 is released today:
https://github.com/uclouvain/openjpeg/releases/tag/v2.2.0
This new release includes a significant number of improvements and bug
fixes. In particular:
- Multi-threading support at decoding side
- Several speed optimisations both at encoder and decoder, and both on
Wavelet Transform and Entropy Coding parts. On our test set, a
single-threaded execution is now around 20% faster (encoding or decoding).
- Huge memory consumption reduction at decoding side (~60% reduction
on large images)
- Several important bug fixes, in particular the one that was
preventing OpenJPEG to encode lossless in some specific situations, as
well as those related to mode switches (BYPASS/LAZY, RESTART/TERMALL,
etc).
- Several security fixes thanks to the inclusion of OpenJPEG in the
Google OSS Fuzz project.
Beside that, several improvements have been brought to the project
maintenance, like inclusion of benchmarking scripts to compare speed
with latest available kakadu binaries.
And, last but not least, API and ABI are 100% compatible with previous
version.
More info:
News: https://github.com/uclouvain/openjpeg/blob/v2.2.0/NEWS.md
Changelog: https://github.com/uclouvain/openjpeg/blob/v2.2.0/CHANGELOG.md
Full Changelog:
https://github.com/uclouvain/openjpeg/compare/v2.1.2...v2.2.0
As described in a previous post
(https://groups.google.com/d/msg/openjpeg/CltNQpbbwm4/jajpDKq0AAAJ),
all this has been made possible thanks to a funding from academic
institutions and archival organizations, namely:
- Wellcome Library
- Stanford University
- Nationale Bibliotheek van Nederland (KBNL)
- University of Michigan
- University of California, Los Angeles (UCLA)
And logistic support from the International Image Interoperability
Framework (IIIF), the Council on Library and Information Resources
(CLIR), intoPIX, and of course the Image and Signal Processing Group
(ISPGroup) from University of Louvain (UCL, Belgium) hosting the
OpenJPEG project. Thanks to all of them !
Many thanks also to Even Rouault, the developper who actually
implemented these improvements, and of course to all contributors
having suggested fixes or enhancements.
I hope you will find this new version useful, don’t hesitate to
provide feedback to improve it even further. By the way, more
improvements are yet to come in the coming months.
Enjoy,
Antonin
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OpenJPEG is mainly supported by :
* UCL Image and Signal Processing Group
(http://sites.uclouvain.be/ispgroup)
* IntoPIX (www.intopix.com)
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