ac865676a9
Reasoning: Analysis of `VP8LColorCacheInit` (src/utils/color_cache_utils.c:29) revealed that `colors` is allocated using `WebPSafeCalloc` with a size of `1 << hash_bits`. Therefore, `colors` was annotated with `WEBP_COUNTED_BY_OR_NULL(1u << hash_bits)`. To support this, `WebPSafeCalloc` (src/utils/utils.h:59, src/utils/utils.c:214) was annotated to return `WEBP_SIZED_BY_OR_NULL(nmemb * size)`. Since `WebPSafeCalloc` returns a local pointer that defaults to unsafe when bounds safety is suppressed, `WEBP_UNSAFE_FORGE_BIDI_INDEXABLE` was used on the return value (src/utils/utils.c:222). Similarly, `VP8LColorCacheInit` required `WEBP_UNSAFE_FORGE_BIDI_INDEXABLE` when assigning the allocated pointer to the struct field (src/utils/color_cache_utils.c:47). Finally, `VP8LColorCacheInit` and `VP8LColorCacheClear` were modified to perform side-by-side assignments to `colors` and `hash_bits` as required by the `WEBP_COUNTED_BY_OR_NULL` annotation, using self-assignment for `hash_bits` when necessary to maintain functional equivalence with the original code. Bug: 432511821 Change-Id: I63cb46909d883a2e8932043ac3117b05b37e8d40
WebP Codec
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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