mirror of
https://github.com/webmproject/libwebp.git
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97 lines
3.9 KiB
Plaintext
97 lines
3.9 KiB
Plaintext
- 10/13/14: version 0.4.2
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This is a binary compatible release.
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* Android / gcc build fixes
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* (Windows) fix reading from stdin and writing to stdout
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* gif2webp: miscellaneous fixes
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* fix 'alpha-leak' with lossy compression (issue #220)
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* the lossless bitstream spec has been amended to reflect the current code
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- 7/24/14: version 0.4.1
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This is a binary compatible release.
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* AArch64 (arm64) & MIPS support/optimizations
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* NEON assembly additions:
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- ~25% faster lossy decode / encode (-m 4)
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- ~10% faster lossless decode
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- ~5-10% faster lossless encode (-m 3/4)
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* dwebp/vwebp can read from stdin
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* cwebp/gif2webp can write to stdout
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* cwebp can read webp files; useful if storing sources as webp lossless
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- 12/19/13: version 0.4.0
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* improved gif2webp tool
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* numerous fixes, compression improvement and speed-up
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* dither option added to decoder (dwebp -dither 50 ...)
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* improved multi-threaded modes (-mt option)
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* improved filtering strength determination
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* New function: WebPMuxGetCanvasSize
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* BMP and TIFF format output added to 'dwebp'
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* Significant memory reduction for decoding lossy images with alpha.
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* Intertwined decoding of RGB and alpha for a shorter
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time-to-first-decoded-pixel.
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* WebPIterator has a new member 'has_alpha' denoting whether the frame
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contains transparency.
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* Container spec amended with new 'blending method' for animation.
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- 6/13/13: version 0.3.1
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This is a binary compatible release.
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* Add incremental decoding support for images containing ALPH and ICCP chunks.
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* Python bindings via swig for the simple encode/decode interfaces similar to
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Java.
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- 3/20/13: version 0.3.0
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This is a binary compatible release.
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* WebPINewRGB/WebPINewYUVA accept being passed a NULL output buffer
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and will perform auto-allocation.
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* default filter option is now '-strong -f 60'
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* encoding speed-up for lossy methods 3 to 6
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* alpha encoding can be done in parallel to lossy using 'cwebp -mt ...'
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* color profile, metadata (XMP/EXIF) and animation support finalized in the
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container.
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* various NEON assembly additions
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Tool updates / additions:
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* gif2webp added
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* vwebp given color profile & animation support
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* cwebp can preserve color profile / metadata with '-metadata'
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- 10/30/12: version 0.2.1
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* Various security related fixes
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* cwebp.exe: fix import errors on Windows XP
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* enable DLL builds for mingw targets
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- 8/3/12: version 0.2.0
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* Add support for ARGB -> YUVA conversion for lossless decoder
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New functions: WebPINewYUVA, WebPIDecGetYUVA
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* Add stats for lossless and alpha encoding
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* Security related hardening: allocation and size checks
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* Add PAM output support to dwebp
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- 7/19/12: version 0.1.99
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* This is a pre-release of 0.2.0, not an rc to allow for further
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incompatible changes based on user feedback.
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* Alpha channel encode/decode support.
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* Lossless encoder/decoder.
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* Add TIFF input support to cwebp.
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Incompatible changes:
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* The encode ABI has been modified to support alpha encoding.
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* Deprecated function WebPINew() has been removed.
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* Decode function signatures have changed to consistently use size_t over
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int/uint32_t.
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* decode_vp8.h is no longer installed system-wide.
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* cwebp will encode the alpha channel if present.
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- 9/19/11: version 0.1.3
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* Advanced decoding APIs.
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* On-the-fly cropping and rescaling of images.
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* SSE2 instructions for decoding performance optimizations on x86 based platforms.
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* Support Multi-threaded decoding.
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* 40% improvement in Decoding performance.
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* Add support for RGB565, RGBA4444 & ARGB image colorspace.
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* Better handling of large picture encoding.
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- 3/25/11: version 0.1.2
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* Incremental decoding: picture can be decoded byte-by-byte if needs be.
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* lot of bug-fixes, consolidation and stabilization
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- 2/23/11: initial release of version 0.1, with the new encoder
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- 9/30/10: initial release version with only the lightweight decoder
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