WebP is a modern web image format with superior compression.
WebP lossless images are 26% smaller in size compared to PNGs.
Lossless WebP supports (alpha channel) transparency at a cost of 22% overhead.
WebP lossy images are 25-34% smaller than JPEG images at equivalent quality.
Lossy WebP supports transparency with 3Ã smaller file sizes than PNG.
A WebP file consists of VP8 or VP8L image data in a RIFF container.
For more information see the project home page:
https://developers.google.com/speed/webp/
The following packages have been upgraded in the Cygwin distribution:
- libwebp 1.5
- libwebp-devel 1.5
- libwebpdecoder3 1.5
- libwebpdemux2 1.5
- libwebpmux3 1.5
- libwebp7 1.5
As there are multiple components and changes each release, see below or
after installation read /usr/share/doc/libwebp/NEWS;
for complete details of changes see:
/usr/share/doc/libwebp/ChangeLog
or
https://chromium.googlesource.com/webm/libwebp/+log/refs/tags/v1.5.0/ChangeLog
2024-12-19 1.5.0
This is a binary compatible release.
API changes:
- `cross_color_transform_bits` added to WebPAuxStats
- minor lossless encoder speed and compression improvements
- lossless encoding does not use floats anymore
- additional Arm optimizations for lossy & lossless + general code
generation improvements
- improvements to WASM performance
- improvements and corrections in webp-container-spec.txt and
webp-lossless-bitstream-spec.txt
- further security related hardening and increased fuzzing coverage w/fuzztest
- miscellaneous warning, bug & build fixes
Tool updates:
- gif2webp: add -sharp_yuv & -near_lossless
- img2webp: add -exact & -noexact
- exit codes normalized; running an example program with no arguments
will output its help and exit with an error
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