ddcdfa6a42
Previously, WebPAnimEncoder::prev_rect was set in
SetFrame()>PickBestCandidate(), and SetFrame() may be called twice in
a row in CacheFrame(), making prev_rect value wrong in the second
SetFrame() call. Fortunately, the second call is always for a
keyframe, and in that case SetFrame() does not use the value of
prev_rect.
Since commit b1feaa4 that may have been a bigger issue as
PickBestCandidate() was moved from the end of SetFrame() to
SetFrame()>GenerateCandidates()>PickBestCandidate(), effectively
changing the value of prev_rect for non-keyframe candidates within the
same SetFrame() call. Fortunately, prev_rect is only used at the
beginning of SetFrame(), before any call to GenerateCandidates(),
hence the no-op change.
Change-Id: I693dbf9d264b8768d25a29d75b511e616a3db56b
WebP Codec
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\____/____/\_____/_____/____/v1.6.0
WebP codec is a library to encode and decode images in WebP format. This package contains the library that can be used in other programs to add WebP support, as well as the command line tools 'cwebp' and 'dwebp' to compress and decompress images respectively.
See https://developers.google.com/speed/webp for details on the image format.
The latest source tree is available at https://chromium.googlesource.com/webm/libwebp
It is released under the same license as the WebM project. See https://www.webmproject.org/license/software/ or the "COPYING" file for details. An additional intellectual property rights grant can be found in the file PATENTS.
Building
See the building documentation.
Encoding and Decoding Tools
The examples/ directory contains tools to encode and decode images and animations, view information about WebP images, and more. See the tools documentation.
APIs
See the APIs documentation, and API usage examples in the
examples/ directory.
Bugs
Please report all bugs to the issue tracker. For security reports, select 'Security report' from the Template dropdown.
Patches welcome! See how to contribute.
Discuss
Email: webp-discuss@webmproject.org
Web: https://groups.google.com/a/webmproject.org/group/webp-discuss