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CharLS v2.3.0
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@vbaderks vbaderks released this 24 Jan 00:01
2.3.0
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vbaderks Victor Derks
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Learn about vigilant mode.
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Learn about vigilant mode.

Summary

Feature and maintenance release.

Added

  • The encoder API has been extended with a rewind method that can be used to re-use a configured encoder to encode multiple images in a loop.
  • Added support to decode JPEG-LS images that use restart markers #92.
  • Added support to write and read comment (COM) segments #113.
  • Added support to encode/decode oversized images (width or height larger then 65535).
  • Extended the validation of the encoded JPEG-LS byte stream during decoding.
  • Added support to encode JPEG-LS images with:
    • The option to ensure the output stream has an even size.
    • The option to write the CharLS version number as a comment (COM segment) to the output stream.
    • The option to write the coding parameters to the output stream if the bits per pixel are larger then 12 (enabled by default).
  • Usage of compiler specific attributes on the public API as replacement for [[nodiscard]] (which is a C++17 feature).

Fixed

  • Fixed #84, Default preset coding parameters not computed for unset values.
  • Fixed #102, CMake find_package(charls 2.2.0 REQUIRED) not working.

Changed

  • CMakeSettings.json has been replaced with CMakePresets.json.
  • Non default coding parameters are explicitly stored in the output stream during encoding.
  • GCC shared library release builds are now using LTO (Link Time Optimization).
  • Some functions use compiler intrinsics for slightly better performance.
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