github.com/cellofellow/gopkg@v0.0.0-20140722061823-eec0544a62ad/image/webp/libwebp/NEWS (about) 1 - 12/19/13: version 0.4.0 2 * improved gif2webp tool 3 * numerous fixes, compression improvement and speed-up 4 * dither option added to decoder (dwebp -dither 50 ...) 5 * improved multi-threaded modes (-mt option) 6 * improved filtering strength determination 7 * New function: WebPMuxGetCanvasSize 8 * BMP and TIFF format output added to 'dwebp' 9 * Significant memory reduction for decoding lossy images with alpha. 10 * Intertwined decoding of RGB and alpha for a shorter 11 time-to-first-decoded-pixel. 12 * WebPIterator has a new member 'has_alpha' denoting whether the frame 13 contains transparency. 14 * Container spec amended with new 'blending method' for animation. 15 16 - 6/13/13: version 0.3.1 17 This is a binary compatible release. 18 * Add incremental decoding support for images containing ALPH and ICCP chunks. 19 * Python bindings via swig for the simple encode/decode interfaces similar to 20 Java. 21 22 - 3/20/13: version 0.3.0 23 This is a binary compatible release. 24 * WebPINewRGB/WebPINewYUVA accept being passed a NULL output buffer 25 and will perform auto-allocation. 26 * default filter option is now '-strong -f 60' 27 * encoding speed-up for lossy methods 3 to 6 28 * alpha encoding can be done in parallel to lossy using 'cwebp -mt ...' 29 * color profile, metadata (XMP/EXIF) and animation support finalized in the 30 container. 31 * various NEON assembly additions 32 Tool updates / additions: 33 * gif2webp added 34 * vwebp given color profile & animation support 35 * cwebp can preserve color profile / metadata with '-metadata' 36 37 - 10/30/12: version 0.2.1 38 * Various security related fixes 39 * cwebp.exe: fix import errors on Windows XP 40 * enable DLL builds for mingw targets 41 42 - 8/3/12: version 0.2.0 43 * Add support for ARGB -> YUVA conversion for lossless decoder 44 New functions: WebPINewYUVA, WebPIDecGetYUVA 45 * Add stats for lossless and alpha encoding 46 * Security related hardening: allocation and size checks 47 * Add PAM output support to dwebp 48 49 - 7/19/12: version 0.1.99 50 * This is a pre-release of 0.2.0, not an rc to allow for further 51 incompatible changes based on user feedback. 52 * Alpha channel encode/decode support. 53 * Lossless encoder/decoder. 54 * Add TIFF input support to cwebp. 55 Incompatible changes: 56 * The encode ABI has been modified to support alpha encoding. 57 * Deprecated function WebPINew() has been removed. 58 * Decode function signatures have changed to consistently use size_t over 59 int/uint32_t. 60 * decode_vp8.h is no longer installed system-wide. 61 * cwebp will encode the alpha channel if present. 62 63 - 9/19/11: version 0.1.3 64 * Advanced decoding APIs. 65 * On-the-fly cropping and rescaling of images. 66 * SSE2 instructions for decoding performance optimizations on x86 based platforms. 67 * Support Multi-threaded decoding. 68 * 40% improvement in Decoding performance. 69 * Add support for RGB565, RGBA4444 & ARGB image colorspace. 70 * Better handling of large picture encoding. 71 72 - 3/25/11: version 0.1.2 73 * Incremental decoding: picture can be decoded byte-by-byte if needs be. 74 * lot of bug-fixes, consolidation and stabilization 75 76 - 2/23/11: initial release of version 0.1, with the new encoder 77 - 9/30/10: initial release version with only the lightweight decoder