| - 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 |
