./archivers/libaec, Adaptive entropy coding library

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Branch: CURRENT, Version: 1.1.3, Package name: libaec-1.1.3, Maintainer: bacon

Libaec provides fast lossless compression of 1 up to 32 bit wide signed
or unsigned integers (samples). The library achieves best results for
low entropy data as often encountered in space imaging instrument data or
numerical model output from weather or climate simulations. While floating
point representations are not directly supported, they can also be efficiently
coded by grouping exponents and mantissa.

Libaec implements Golomb-Rice coding as defined in the Space Data System
Standard documents 121.0-B-2 and 120.0-G-2.

Libaec includes a free drop-in replacement for the SZIP library.


Required to build:
[pkgtools/cwrappers]

Master sites:

Filesize: 2259.395 KB

Version history: (Expand)

CVS history: (Expand)


   2025-03-05 11:52:00 by Adam Ciarcinski | Files touched by this commit (1) 
Log message:
libaec: remove unused comment
   2025-03-05 11:51:11 by Adam Ciarcinski | Files touched by this commit (3) | Package updated
Log message:
libaec: updated to 1.1.3

1.1.3

Fixed
- Compiler warnings

1.1.2

Fixed
- Compile issue with MSVC

1.1.1

Fixed
- Offsets when encoding by Eugen Betke

1.1.0

Changed
- Rename aec executable to graec. This avoids a name clash with the
  library itself in cmake builds using the Ninja
  generator. Furthermore, the executable and its manual page will not
  be installed any more since it is mainly used for internal testing
  and benchmarking.

- The include file libaec.h now contains version information.

Added
- Support for decoding data ranges by Eugen Betke. You can now start
  decoding at previously noted offsets of reference samples. New API
  functions allow you to extract possible offsets and decode ranges
  from encoded data.
   2022-10-21 14:55:31 by Adam Ciarcinski | Files touched by this commit (2) | Package updated
Log message:
libaec: updated to 1.0.6

1.0.6

Changed
- Improved cmake for mingw by Miloš Komarčević

1.0.5

Changed
- Updated documentation to new 121.0-B-3 standard. The new standard
  mainly clarifies and explicitly defines special cases which could be
  ambiguous or misleading in previous revisions.

  These changes did *not* require any substantial changes to libaec.
  Existing compressed data is still compatible with this version of
  the library and compressed data produced by this version can be
  uncompressed with previous versions.

- Modernized CMake

- Better CMake integration with HDF5 by Jan-Willem Blokland
   2021-10-26 11:57:20 by Nia Alarie | Files touched by this commit (140) 
Log message:
archivers: Replace RMD160 checksums with BLAKE2s checksums

All checksums have been double-checked against existing RMD160 and SHA512
hashes.
   2021-10-07 15:06:15 by Nia Alarie | Files touched by this commit (140) 
Log message:
archivers: Remove SHA1 distfiles hashes
   2019-04-29 17:51:23 by Jason Bacon | Files touched by this commit (5) 
Log message:
archivers/libaec: import libaec-1.0.4

Libaec provides fast lossless compression of 1 up to 32 bit wide signed
or unsigned integers (samples). The library achieves best results for
low entropy data as often encountered in space imaging instrument data or
numerical model output from weather or climate simulations. While floating
point representations are not directly supported, they can also be efficiently
coded by grouping exponents and mantissa.

Libaec implements Golomb-Rice coding as defined in the Space Data System
Standard documents 121.0-B-2 and 120.0-G-2.

Libaec includes a free drop-in replacement for the SZIP library.