4cc27eb808
Reasoning: Analysis showed `bit_depths` is passed from `VP8LCreateHuffmanTree` (as `huff_code->code_lengths`) to `GenerateOptimalTree` (as `bit_depths` with size `histogram_size` = `huff_code->num_symbols`) and then to `SetBitDepths`. The `HuffmanTreeCode` struct stores `code_lengths` and `codes` pointers, both sized by `num_symbols`. These arrays are allocated in `GetHuffBitLengthsAndCodes` (called by `EncodeImageInternal`) based on `num_symbols`. The fix involves: - Annotating `HuffmanTreeCode::code_lengths` and `HuffmanTreeCode::codes` with `__counted_by(num_symbols)` in `src/utils/huffman_encode_utils.h`. - Annotating the `bit_depths` parameter in `GenerateOptimalTree` with `__counted_by(histogram_size)` in `src/utils/huffman_encode_utils.c`. - Annotating the `bit_depths` parameter in `SetBitDepths` with `__indexable` in `src/utils/huffman_encode_utils.c`, as the size parameter (`histogram_size`) is not directly available but indexing is known to be safe based on caller logic (indices `tree->value` are within `[0, histogram_size - 1]`). Bug: 432511821 Change-Id: Icfd32f15d0744983b5912d527e5bc59ac58343a5
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