| - 4/2/2018: version 1.0.0 | |
| This is a binary compatible release. | |
| * lossy encoder improvements to avoid chroma shifts in various circumstances | |
| (issues #308, #340) | |
| * big-endian fixes for decode, RGBA import and WebPPictureDistortion | |
| Tool updates: | |
| gifwebp, anim_diff - default duration behavior (<= 10ms) changed to match | |
| web browsers, transcoding tools (issue #379) | |
| img2webp, webpmux - allow options to be passed in via a file (issue #355) | |
| - 11/24/2017: version 0.6.1 | |
| This is a binary compatible release. | |
| * lossless performance and compression improvements + a new 'cruncher' mode | |
| (-m 6 -q 100) | |
| * ARM performance improvements with clang (15-20% w/ndk r15c, issue #339) | |
| * webp-js: emscripten/webassembly based javascript decoder | |
| * miscellaneous bug & build fixes (issue #329, #332, #343, #353, #360, #361, | |
| #363) | |
| Tool updates / additions: | |
| added webpinfo - prints file format information (issue #330) | |
| gif2webp - loop behavior modified to match Chrome M63+ (crbug.com/649264); | |
| '-loop_compatibility' can be used for the old behavior | |
| - 1/26/2017: version 0.6.0 | |
| * lossless performance and compression improvements | |
| * miscellaneous performance improvements (SSE2, NEON, MSA) | |
| * webpmux gained a -duration option allowing for frame timing modification | |
| * new img2webp utility allowing a sequence of images to be converted to | |
| animated webp | |
| * API changes: | |
| - libwebp: | |
| WebPPictureSharpARGBToYUVA | |
| WebPPlaneDistortion | |
| - libwebpmux / gif2webp: | |
| WebPAnimEncoderOptions: kmax <= 0 now disables keyframes, kmax == 1 | |
| forces all keyframes. See mux.h and the gif2webp | |
| manpage for details. | |
| - 12/13/2016: version 0.5.2 | |
| This is a binary compatible release. | |
| This release covers CVE-2016-8888 and CVE-2016-9085. | |
| * further security related hardening in the tools; fixes to | |
| gif2webp/AnimEncoder (issues #310, #314, #316, #322), cwebp/libwebp (issue | |
| #312) | |
| * full libwebp (encoder & decoder) iOS framework; libwebpdecoder | |
| WebP.framework renamed to WebPDecoder.framework (issue #307) | |
| * CMake support for Android Studio (2.2) | |
| * miscellaneous build related fixes (issue #306, #313) | |
| * miscellaneous documentation improvements (issue #225) | |
| * minor lossy encoder fixes and improvements | |
| - 6/14/2016: version 0.5.1 | |
| This is a binary compatible release. | |
| * miscellaneous bug fixes (issues #280, #289) | |
| * reverted alpha plane encoding with color cache for compatibility with | |
| libwebp 0.4.0->0.4.3 (issues #291, #298) | |
| * lossless encoding performance improvements | |
| * memory reduction in both lossless encoding and decoding | |
| * force mux output to be in the extended format (VP8X) when undefined chunks | |
| are present (issue #294) | |
| * gradle, cmake build support | |
| * workaround for compiler bug causing 64-bit decode failures on android | |
| devices using clang-3.8 in the r11c NDK | |
| * various WebPAnimEncoder improvements | |
| - 12/17/2015: version 0.5.0 | |
| * miscellaneous bug & build fixes (issues #234, #258, #274, #275, #278) | |
| * encoder & decoder speed-ups on x86/ARM/MIPS for lossy & lossless | |
| - note! YUV->RGB conversion was sped-up, but the results will be slightly | |
| different from previous releases | |
| * various lossless encoder improvements | |
| * gif2webp improvements, -min_size option added | |
| * tools fully support input from stdin and output to stdout (issue #168) | |
| * New WebPAnimEncoder API for creating animations | |
| * New WebPAnimDecoder API for decoding animations | |
| * other API changes: | |
| - libwebp: | |
| WebPPictureSmartARGBToYUVA() (-pre 4 in cwebp) | |
| WebPConfig::exact (-exact in cwebp; -alpha_cleanup is now the default) | |
| WebPConfig::near_lossless (-near_lossless in cwebp) | |
| WebPFree() (free'ing webp allocated memory in other languages) | |
| WebPConfigLosslessPreset() | |
| WebPMemoryWriterClear() | |
| - libwebpdemux: removed experimental fragment related fields and functions | |
| - libwebpmux: WebPMuxSetCanvasSize() | |
| * new libwebpextras library with some uncommon import functions: | |
| WebPImportGray/WebPImportRGB565/WebPImportRGB4444 | |
| - 10/15/15: version 0.4.4 | |
| This is a binary compatible release. | |
| * rescaling out-of-bounds read fix (issue #254) | |
| * various build fixes and improvements (issues #253, #259, #262, #267, #268) | |
| * container documentation update | |
| * gif2webp transparency fix (issue #245) | |
| - 3/3/15: version 0.4.3 | |
| This is a binary compatible release. | |
| * Android / gcc / iOS / MSVS build fixes and improvements | |
| * lossless decode fix (issue #239 -- since 0.4.0) | |
| * documentation / vwebp updates for animation | |
| * multi-threading fix (issue #234) | |
| - 10/13/14: version 0.4.2 | |
| This is a binary compatible release. | |
| * Android / gcc build fixes | |
| * (Windows) fix reading from stdin and writing to stdout | |
| * gif2webp: miscellaneous fixes | |
| * fix 'alpha-leak' with lossy compression (issue #220) | |
| * the lossless bitstream spec has been amended to reflect the current code | |
| - 7/24/14: version 0.4.1 | |
| This is a binary compatible release. | |
| * AArch64 (arm64) & MIPS support/optimizations | |
| * NEON assembly additions: | |
| - ~25% faster lossy decode / encode (-m 4) | |
| - ~10% faster lossless decode | |
| - ~5-10% faster lossless encode (-m 3/4) | |
| * dwebp/vwebp can read from stdin | |
| * cwebp/gif2webp can write to stdout | |
| * cwebp can read webp files; useful if storing sources as webp lossless | |
| - 12/19/13: version 0.4.0 | |
| * improved gif2webp tool | |
| * numerous fixes, compression improvement and speed-up | |
| * dither option added to decoder (dwebp -dither 50 ...) | |
| * improved multi-threaded modes (-mt option) | |
| * improved filtering strength determination | |
| * New function: WebPMuxGetCanvasSize | |
| * BMP and TIFF format output added to 'dwebp' | |
| * Significant memory reduction for decoding lossy images with alpha. | |
| * Intertwined decoding of RGB and alpha for a shorter | |
| time-to-first-decoded-pixel. | |
| * WebPIterator has a new member 'has_alpha' denoting whether the frame | |
| contains transparency. | |
| * Container spec amended with new 'blending method' for animation. | |
| - 6/13/13: version 0.3.1 | |
| This is a binary compatible release. | |
| * Add incremental decoding support for images containing ALPH and ICCP chunks. | |
| * Python bindings via swig for the simple encode/decode interfaces similar to | |
| Java. | |
| - 3/20/13: version 0.3.0 | |
| This is a binary compatible release. | |
| * WebPINewRGB/WebPINewYUVA accept being passed a NULL output buffer | |
| and will perform auto-allocation. | |
| * default filter option is now '-strong -f 60' | |
| * encoding speed-up for lossy methods 3 to 6 | |
| * alpha encoding can be done in parallel to lossy using 'cwebp -mt ...' | |
| * color profile, metadata (XMP/EXIF) and animation support finalized in the | |
| container. | |
| * various NEON assembly additions | |
| Tool updates / additions: | |
| * gif2webp added | |
| * vwebp given color profile & animation support | |
| * cwebp can preserve color profile / metadata with '-metadata' | |
| - 10/30/12: version 0.2.1 | |
| * Various security related fixes | |
| * cwebp.exe: fix import errors on Windows XP | |
| * enable DLL builds for mingw targets | |
| - 8/3/12: version 0.2.0 | |
| * Add support for ARGB -> YUVA conversion for lossless decoder | |
| New functions: WebPINewYUVA, WebPIDecGetYUVA | |
| * Add stats for lossless and alpha encoding | |
| * Security related hardening: allocation and size checks | |
| * Add PAM output support to dwebp | |
| - 7/19/12: version 0.1.99 | |
| * This is a pre-release of 0.2.0, not an rc to allow for further | |
| incompatible changes based on user feedback. | |
| * Alpha channel encode/decode support. | |
| * Lossless encoder/decoder. | |
| * Add TIFF input support to cwebp. | |
| Incompatible changes: | |
| * The encode ABI has been modified to support alpha encoding. | |
| * Deprecated function WebPINew() has been removed. | |
| * Decode function signatures have changed to consistently use size_t over | |
| int/uint32_t. | |
| * decode_vp8.h is no longer installed system-wide. | |
| * cwebp will encode the alpha channel if present. | |
| - 9/19/11: version 0.1.3 | |
| * Advanced decoding APIs. | |
| * On-the-fly cropping and rescaling of images. | |
| * SSE2 instructions for decoding performance optimizations on x86 based | |
| platforms. | |
| * Support Multi-threaded decoding. | |
| * 40% improvement in Decoding performance. | |
| * Add support for RGB565, RGBA4444 & ARGB image colorspace. | |
| * Better handling of large picture encoding. | |
| - 3/25/11: version 0.1.2 | |
| * Incremental decoding: picture can be decoded byte-by-byte if needs be. | |
| * lot of bug-fixes, consolidation and stabilization | |
| - 2/23/11: initial release of version 0.1, with the new encoder | |
| - 9/30/10: initial release version with only the lightweight decoder |