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https://github.com/webmproject/libwebp.git
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c22877f70f
This applies to images with optional chunks (e.g. images with ALPH
chunk,
ICCP chunk etc). Before this, the incremental decoding used to work like
non-incremental decoding for such files, that is, no rows were decoded
until
all data was available.
The change is in 2 parts:
- During optional chunk parsing, don't wait for the full VP8/VP8L chunk.
- Remap 'alpha_data' pointer whenever a new buffer is allocated/used in
WebPIAppend() and WebPIUpdate().
Change-Id: I6cfd6ca1f334b9c6610fcbf662cd85fa494f2a91
(cherry picked from commit ead4d47859)
60 lines
2.4 KiB
Plaintext
60 lines
2.4 KiB
Plaintext
- Next version:
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* Add incremental decoding support for images containing ALPH and ICCP chunks.
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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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