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//proc/self/root/opt/alt/libwebp/share/doc/alt-libwebp-1.3.2/NEWS
- 9/13/2023: version 1.3.2 This is a binary compatible release. * security fix for lossless decoder (chromium: #1479274, CVE-2023-4863) - 6/23/2023: version 1.3.1 This is a binary compatible release. * security fixes for lossless encoder (#603, chromium: #1420107, #1455619, CVE-2023-1999) * improve error reporting through WebPPicture error codes * fix upsampling for RGB565 and RGBA4444 in NEON builds * img2webp: add -sharp_yuv & -near_lossless * Windows builds: - fix compatibility with clang-cl (#607) - improve Arm64 performance with cl.exe - add Arm64EC support * fix webp_js with emcc >= 3.1.27 (stack size change, #614) * CMake fixes (#592, #610, #612) * further updates to the container and lossless bitstream docs (#581, #611) - 12/16/2022: version 1.3.0 This is a binary compatible release. * add libsharpyuv, which exposes -sharp_yuv/config.use_sharp_yuv functionality to other libraries; libwebp now depends on this library * major updates to the container and lossless bitstream docs (#448, #546, #551) * miscellaneous warning, bug & build fixes (#576, #583, #584) - 8/4/2022: version 1.2.4 This is a binary compatible release. * restore CMake libwebpmux target name for compatibility with 1.2.2 (#575) * fix lossless crunch mode encoding with WEBP_REDUCE_SIZE (chromium: #1345547, #1345595, #1345772, #1345804) - 6/30/2022: version 1.2.3 This is a binary compatible release. * security fix for lossless encoder (#565, chromium:1313709) * improved progress granularity in WebPReportProgress() when using lossless * improved precision in Sharp YUV (-sharp_yuv) conversion * many corrections to webp-lossless-bitstream-spec.txt (#551) * crash/leak fixes on error/OOM and other bug fixes (#558, #563, #569, #573) - 1/11/2022: version 1.2.2 This is a binary compatible release. * webpmux: add "-set bgcolor A,R,G,B" * add ARM64 NEON support for MSVC builds (#539) * fix duplicate include error in Xcode when using multiple XCFrameworks in a project (#542) * doc updates and bug fixes (#538, #544, #548, #550) - 7/20/2021: version 1.2.1 This is a binary compatible release. * minor lossless encoder improvements and x86 color conversion speed up * add ARM64 simulator support to xcframeworkbuild.sh (#510) * further security related hardening in libwebp & examples (issues: #497, #508, #518) (chromium: #1196480, #1196773, #1196775, #1196777, #1196778, #1196850) (oss-fuzz: #28658, #28978) * toolchain updates and bug fixes (#498, #501, #502, #504, #505, #506, #509, #533) * use more inclusive language within the source (#507) - 12/23/2020: version 1.2.0 * API changes: - libwebp: encode.h: add a qmin / qmax range for quality factor (cwebp adds -qrange) * lossless encoder improvements * SIMD support for Wasm builds * add xcframeworkbuild.sh, supports Mac Catalyst builds * import fuzzers from oss-fuzz & chromium (#409) * webpmux: add an '-set loop <value>' option (#494) * toolchain updates and bug fixes (#449, #463, #470, #475, #477, #478, #479, #488, #491) - 12/18/2019: version 1.1.0 * API changes: - libwebp: WebPMalloc (issue #442) - extras: WebPUnmultiplyARGB * alpha decode fix (issue #439) * toolchain updates and bug fixes (chromium: #1026858, #1027136, #1027409, #1028620, #1028716, #995200) (oss-fuzz: #19430, #19447) - 7/4/2019: version 1.0.3 This is a binary compatible release. * resize fixes for Nx1 sizes and the addition of non-opaque alpha values for odd sizes (issues #418, #434) * lossless encode/decode performance improvements * lossy compression performance improvement at low quality levels with flat content (issue #432) * python swig files updated to support python 3 Tool updates: vwebp will now preserve the aspect ratio of images that exceed monitor resolution by scaling the image to fit (issue #433) - 1/14/2019: version 1.0.2 This is a binary compatible release. * (Windows) unicode file support in the tools (linux and mac already had support, issue #398) * lossless encoder speedups * lossy encoder speedup on ARM * lossless multi-threaded security fix (chromium:917029) - 11/2/2018: version 1.0.1 This is a binary compatible release. * lossless encoder speedups * big-endian fix for alpha decoding (issue #393) * gif2webp fix for loop count=65535 transcode (issue #382) * further security related hardening in libwebp & libwebpmux (issues #383, #385, #386, #387, #388, #391) (oss-fuzz #9099, #9100, #9105, #9106, #9111, #9112, #9119, #9123, #9170, #9178, #9179, #9183, #9186, #9191, #9364, #9417, #9496, #10349, #10423, #10634, #10700, #10838, #10922, #11021, #11088, #11152) * miscellaneous bug & build fixes (issues #381, #394, #396, #397, #400) - 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