Optional hand-tuned x86 assembly acceleration using openh264's BSD-2 kernels.
This crate is deliberately not #![forbid(unsafe_code)]: it links and calls
hand-written assembly through FFI. It is the opt-in "speed over the pure-safe-Rust
guarantee" path — the rest of the codec stays forbid(unsafe) and falls back to
the scalar/wide implementations when this crate is not enabled.
openh264 asm is BSD-2 licensed; attribution lives in openh264/LICENSE.