Module simd 

The process-wide SIMD instruction-set override shared by every codec kernel.

zvidlib’s codecs dispatch their hot loops to runtime-detected vector kernels in many independent places, each caching its own CPU feature probe. This module is the single switch every one of them consults first; see zvidlib::simd for the user-facing description and the per-site report.

Enums

SimdIsa

An instruction set the SIMD kernels can run on.

Functions

active

The instruction set currently in force: the set_override value when one is set, otherwise detected.

available

Every instruction set this host can execute, always including SimdIsa::Scalar.

available_isas

Every instruction set that can be exercised on this host, always including SimdIsa::Scalar. Used by the bit-exactness tests and the benchmark.

detected

The widest instruction set this host supports, ignoring any set_override.

detected_isa

The best instruction set this CPU supports, ignoring any set_override.

lanes

Number of samples a single vector operation covers on isa, or 0 when isa has no vector path and callers should stay scalar.

set_override

Forces every SIMD-dispatched kernel in the crate onto isa, or restores per-site automatic detection with None.