mirror of https://github.com/webmproject/libwebp.git synced 2026-04-09 14:22:31 +02:00

Files

James Zern 3307a349ed anim_encode,KeyFramePenalty: add missing cast

`sub_frame.bitstream.size` is a `size_t`. This function intends to
calculate a signed penalty value from 2 instances of the variable. Both
need to be cast to `int64_t` to avoid the calculation being promoted to
unsigned when `size_t` is 64 bits.

Fixes a (harmless) unsigned overflow warning:

```
src/mux/anim_encode.c:1341:60: runtime error: unsigned integer overflow:
  106 - 108 cannot be represented in type 'size_t' (aka 'unsigned long')
```

Bug: 498967191
Change-Id: I45ce174437e5a9bfa856c4d6665f5a60869078b8

2026-04-02 14:49:25 -07:00

fuzzer

anim_encode,KeyFramePenalty: add missing cast

2026-04-02 14:49:25 -07:00

README.md

Switch public fuzz tests to fuzztest.

2024-06-05 14:08:27 +02:00

README.md

Tests

This is a collection of tests for the libwebp libraries, currently covering fuzzing through the APIs. Additional test vector coverage can be found at: https://chromium.googlesource.com/webm/libwebp-test-data

Building

Fuzzers

Follow the build instructions for libwebp, optionally adding build flags for various sanitizers (e.g., -fsanitize=address).

-DWEBP_BUILD_FUZZTEST=ON can then be used to compile the fuzzer targets:

$ cmake -B ./build -S . -DWEBP_BUILD_FUZZTEST=ON
$ make -C build