Crate vpl_sys 

Minimal, unprefixed FFI core for a subset of Intel oneVPL (intel/libvpl, MIT). No dependency on mediaway-common or any Mediaway facade — this crate has no Mediaway-specific types, mirroring iso-bmff/iso-cenc’s “reusable outside Mediaway” positioning (ADR-0012).

Scope (Stage 1)

• Types: raw — bindgen-generated oneVPL struct/union layout from vendored headers (vendor/), exact #pragma pack semantics verified by real Clang parsing rather than hand-transcribed.
• Constants: consts — hand-transcribed MFX_* values (status codes, codec/profile/level/IOPattern/rate-control selectors), each cited against the vendored header it came from.
• Runtime loading: dispatcher — a deliberately reduced reimplementation of Intel’s own oneVPL dispatcher: resolve a driver-shipped implementation library (libmfxhw64.dll on Windows) via libloading, then the ~10 MFX* entry points this crate’s Stage 1 H.264 CPU-upload encode path needs. Not a port of Intel’s real dispatcher (MFXLoad/MFXCreateConfig/MFXEnumImplementations) — no multi-implementation ranking, no capability filtering, first working Intel GPU implementation wins. See dispatcher module docs and mediaway-encoder-quicksync/adr/0001-onevpl-quicksync-encode-surface.md.

No build-time link against any Intel-provided import library — every entry point is resolved at runtime (GetProcAddress/dlsym via libloading), matching how the real oneVPL dispatcher itself works.

Re-exports

pub use dispatcher::Loader;

pub use dispatcher::Session;

pub use dispatcher::VplError;

Modules

consts

Hand-transcribed oneVPL numeric constants.

dispatcher

MVP dispatcher: load a driver-shipped oneVPL implementation at runtime.

raw

Generated oneVPL struct/union/typedef bindings (types only — see build.rs), plus the handful of opaque handle types bindgen never sees because their home headers (mfxsession.h) are not part of this crate’s bindgen input (see vendor/README.md).